IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
A Review of Node Deployment Techniques in Wireless Sensor NetworkIRJET Journal
This document summarizes and compares different techniques for deploying sensor nodes in wireless sensor networks. It discusses potential field-based methods which aim to uniformly distribute sensor nodes using repulsive and attractive forces. It also describes virtual force-based schemes which use cluster heads to logically determine sensor node movements to increase coverage while preserving connectivity. The document conducts a comparative analysis of these deployment techniques based on factors like energy efficiency, load balancing, and guaranteeing connectivity to the base station.
Earthquake trend prediction using long short-term memory RNNIJECEIAES
The prediction of a natural calamity such as earthquakes has been an area of interest for a long time but accurate results in earthquake forecasting have evaded scientists, even leading some to deem it intrinsically impossible to forecast them accurately. In this paper an attempt to forecast earthquakes and trends using a data of a series of past earthquakes. A type of recurrent neural network called Long Short-Term Memory (LSTM) is used to model the sequence of earthquakes. The trained model is then used to predict the future trend of earthquakes. An ordinary Feed Forward Neural Network (FFNN) solution for the same problem was done for comparison. The LSTM neural network was found to outperform the FFNN. The R^2 score of the LSTM is better than the FFNN’s by 59%.
A new approach for area coverage problem in wireless sensor networks with hyb...ijmnct
One of the most important and basic problems in Wireless Sensor Networks (WSNs) is the coverage
problem. The coverage problem in WSNs causes the security environments is supervised by the existing
sensors in the networks suitably. The importance of coverage in WSNs is so important that is one of the
quality of service parameters. If the sensors do not suitably cover the physical environments they will not
be enough efficient n supervision and controlling. The coverage in WSNs must be in a way that the energy
of the sensors would be the least to increase the lifetime of the network. The other reasons which had
increase the importance of the problem are the topologic changes of the network which are done by the
damage or deletion of some of the sensors and in some cases the network must not lose its coverage. SO, in
this paper we have hybrid the Particle Swarm Optimization (PSO) and Differential Evolution (DE)
algorithms which are the Meta-Heuristic algorithms and have analyzed the area coverage problem in
WSNs. Also a PSO algorithm is implemented to compare the efficiency of the hybrid model in the same
situation. The results of the experiments show that the hybrid algorithm has made more increase in the
lifetime of the network and more optimized use of the energy of the sensors by optimizing the coverage of
the sensors in comparison to PSO.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Placate packet dropping attack using secure routing protocol and incentive ba...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Orchestration of web services based on t qo s using user and web services agenteSAT Publishing House
1. The document discusses orchestrating web services based on transactional and quality of service (TQoS) properties using user and web services agents.
2. It proposes selecting atomic web services that fulfill the user's requirements and TQoS characteristics, and composing them using agents to achieve the user's overall goal.
3. The composition approach involves three steps - specifying the workflow, selecting component services based on the workflow and TQoS properties using a user agent, and composing the services using web services agents.
Analysis of aerodynamic characteristics of a supercritical airfoil for low sp...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
This document proposes a machine learning approach using the Naive Bayes algorithm to detect distributed denial of service (DDoS) attacks through network intrusion detection. It first discusses the issues with existing intrusion detection systems, including long training times and low accuracy. It then summarizes research on applying various machine learning techniques like neural networks, decision trees, and Naive Bayes to intrusion detection. The proposed system would build a classifier using Naive Bayes, which provides faster training than other methods, to distinguish normal and attack traffic. This approach aims to improve upon the training time and detection accuracy of existing intrusion detection systems.
A Review of Node Deployment Techniques in Wireless Sensor NetworkIRJET Journal
This document summarizes and compares different techniques for deploying sensor nodes in wireless sensor networks. It discusses potential field-based methods which aim to uniformly distribute sensor nodes using repulsive and attractive forces. It also describes virtual force-based schemes which use cluster heads to logically determine sensor node movements to increase coverage while preserving connectivity. The document conducts a comparative analysis of these deployment techniques based on factors like energy efficiency, load balancing, and guaranteeing connectivity to the base station.
Earthquake trend prediction using long short-term memory RNNIJECEIAES
The prediction of a natural calamity such as earthquakes has been an area of interest for a long time but accurate results in earthquake forecasting have evaded scientists, even leading some to deem it intrinsically impossible to forecast them accurately. In this paper an attempt to forecast earthquakes and trends using a data of a series of past earthquakes. A type of recurrent neural network called Long Short-Term Memory (LSTM) is used to model the sequence of earthquakes. The trained model is then used to predict the future trend of earthquakes. An ordinary Feed Forward Neural Network (FFNN) solution for the same problem was done for comparison. The LSTM neural network was found to outperform the FFNN. The R^2 score of the LSTM is better than the FFNN’s by 59%.
A new approach for area coverage problem in wireless sensor networks with hyb...ijmnct
One of the most important and basic problems in Wireless Sensor Networks (WSNs) is the coverage
problem. The coverage problem in WSNs causes the security environments is supervised by the existing
sensors in the networks suitably. The importance of coverage in WSNs is so important that is one of the
quality of service parameters. If the sensors do not suitably cover the physical environments they will not
be enough efficient n supervision and controlling. The coverage in WSNs must be in a way that the energy
of the sensors would be the least to increase the lifetime of the network. The other reasons which had
increase the importance of the problem are the topologic changes of the network which are done by the
damage or deletion of some of the sensors and in some cases the network must not lose its coverage. SO, in
this paper we have hybrid the Particle Swarm Optimization (PSO) and Differential Evolution (DE)
algorithms which are the Meta-Heuristic algorithms and have analyzed the area coverage problem in
WSNs. Also a PSO algorithm is implemented to compare the efficiency of the hybrid model in the same
situation. The results of the experiments show that the hybrid algorithm has made more increase in the
lifetime of the network and more optimized use of the energy of the sensors by optimizing the coverage of
the sensors in comparison to PSO.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Placate packet dropping attack using secure routing protocol and incentive ba...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Orchestration of web services based on t qo s using user and web services agenteSAT Publishing House
1. The document discusses orchestrating web services based on transactional and quality of service (TQoS) properties using user and web services agents.
2. It proposes selecting atomic web services that fulfill the user's requirements and TQoS characteristics, and composing them using agents to achieve the user's overall goal.
3. The composition approach involves three steps - specifying the workflow, selecting component services based on the workflow and TQoS properties using a user agent, and composing the services using web services agents.
Analysis of aerodynamic characteristics of a supercritical airfoil for low sp...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
This document proposes a machine learning approach using the Naive Bayes algorithm to detect distributed denial of service (DDoS) attacks through network intrusion detection. It first discusses the issues with existing intrusion detection systems, including long training times and low accuracy. It then summarizes research on applying various machine learning techniques like neural networks, decision trees, and Naive Bayes to intrusion detection. The proposed system would build a classifier using Naive Bayes, which provides faster training than other methods, to distinguish normal and attack traffic. This approach aims to improve upon the training time and detection accuracy of existing intrusion detection systems.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Power saving mechanism for hybrid routing protocol using scheduling techniqueeSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Analysis of image steganalysis techniques to defend against statistical attac...eSAT Publishing House
This document summarizes various techniques for image steganalysis to defend against statistical attacks. It discusses how statistical properties of images can be used to detect hidden messages and describes common steganography algorithms like LSB substitution and techniques for JPEG images. It also outlines approaches for statistical embedding and detection to introduce randomness and maintain statistical distributions when hiding information in digital images.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
This document describes a system for automating power house control using wireless communication. The system uses microcontrollers, wireless modules like Zigbee, and a web interface to remotely monitor and control power outlets. Sensors measure current and send data to a server module over Zigbee. The system can automatically cut off power if a bill is unpaid or if overload is detected. A software module with PHP, JavaScript etc. allows users to view power status on internet-connected devices. The wireless system is low-cost, low data rate, self-healing and provides energy usage information to users for power management remotely.
A novel way of verifiable redistribution of the secret in a multiuser environ...eSAT Publishing House
This document proposes a novel method for verifiably redistributing secrets in a multi-user environment using threshold secret sharing and group keys. It involves a dealer distributing shares of a secret to authorized users, and a group manager who verifies members and notifies the dealer of any changes. If the group changes, the dealer generates new shares without involving old members, encrypts them using group members' public keys, and sends them to the group manager. The manager distributes the shares to the group using a group key. Members can verify their shares against hash values from the dealer. This allows secret redistribution without private channels or involvement of old members in generating new shares.
Effect of chemical treatments on the characteristics of regular and compact c...eSAT Publishing House
1) The document examines the effects of various chemical treatments (scouring, bleaching, mercerizing, dyeing) on the physical properties of regular and compact cotton spun yarns.
2) Testing showed that chemical treatments generally increased yarn tenacity but decreased elongation. Work of rupture was higher for slack mercerized yarns.
3) Bleached yarns showed poorer abrasion resistance while other treated yarns did not change. All treatments increased yarn friction. Slack mercerization significantly increased shrinkage for both yarn types.
Analysis of rc bridge decks for selected national and internationalstandard l...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Harmonized scheme for data mining technique to progress decision support syst...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Performance of blended corrosion inhibitors for reinforced concreteeSAT Publishing House
This document discusses the performance of blended corrosion inhibitors for reinforced concrete. It summarizes the results of experiments conducted to evaluate the effect of a blend of calcium nitrite and calcium hypophosphite corrosion inhibitors on the physical properties and corrosion resistance of cement and concrete. The experiments found that the corrosion inhibitor blend did not adversely affect the setting time, pH, or compressive strength of cement or concrete. Electrochemical tests also showed that the corrosion inhibitor blend reduced the corrosion current density, demonstrating its potential to control corrosion initiation and propagation in reinforced concrete.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
An overview of methods for monitoring web services based on the quality of se...eSAT Publishing House
This document discusses methods for monitoring web services based on quality of service. It begins by introducing service-oriented architecture and the importance of monitoring web service quality parameters. It then classifies existing monitoring techniques into three approaches: service-level, communication-level, and orchestration-level monitoring. At each level, it provides examples of how specific quality parameters like response time could be measured. It also discusses where monitoring can take place, such as on the client-side or server-side, and provides examples of monitoring tools that operate at each level and location. In conclusion, the document outlines how monitoring can help improve and ensure quality of web services.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Economical placement of shear walls in a moment resisting frame for earthquak...eSAT Publishing House
This document analyzes different configurations of shear wall placement in a 5-story reinforced concrete building to determine the optimal configuration for earthquake resistance. Five frames with different shear wall layouts are modeled and analyzed. Frame 2, with shear walls at the building core, performed best with significant reductions in lateral displacement, bending moment, shear force, and axial force compared to the frame without shear walls. For economic feasibility, the top 1-2 stories were removed from Frames 2 and 3. This curtailment further reduced lateral displacement, inter-story drift, bending moment, and shear force, particularly for Frames 7-9. In conclusion, curtailing the top 1-2 stories of Frames 2 or 3 provided the best
Application of ibearugbulem’s model for optimizing granite concrete mixeSAT Publishing House
This document presents a mathematical model for predicting the compressive strength of granitic concrete using Ibearugbulem's regression model. 45 concrete cubes were cast using different mix ratios and tested to determine compressive strength. The first 11 mixes were used to determine the regression model coefficients, and the full 15 mixes were used to validate the model. A t-test found the model results adequately predicted the experimental compressive strengths at a 95% confidence level. The developed model can predict compressive strength or mix proportions for granitic concrete given one is known.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
This paper introduces the Artifi cial Neural Networks (ANN) function to model probabilistic dependencies, in supervised classification tasks for discrimination between earthquakes and explosions problems. ANNs are regarded as the discriminating tools to classify the natural seismic events (earthquakes) from the artifi cial ones (Man-made explosions) based on the seismic signals recorded at regional distances. The bulk of our novel is to improve the obtained numerical results using this advance technique. The ANNs, by testing the different types of seismic features, showed the potential application of this method to discriminate the classes. During the above study, we found out that the Neural Networks have been used in a fully innovative manner in this work. Here the ARMA coefficients filters detects
the type of the source whenever a natural or artificial source changes the nature of the background noise of the seismograms. During the above study, we found out that this algorithm is sometimes capable to alarm the further natural seismological events just a little before the onset.
Free Vibrational Analysis of Cracked and Un-cracked Cantilever BeamIRJET Journal
1. The document analyzes the free vibrational behavior of cracked and un-cracked cantilever beams through numerical analysis using ANSYS software, analytical solutions using Euler beam theory, and experimental modal analysis.
2. Natural frequencies of the beams are obtained for the first three vibration modes. Ten cracked beam models with varying cross-sections, crack locations, and crack depths are analyzed.
3. Curve fitting and fuzzy logic techniques are introduced to identify crack parameters like location and depth based on the natural frequencies. Results from finite element analysis, numerical analysis, fuzzy logic and experiments are compared.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Power saving mechanism for hybrid routing protocol using scheduling techniqueeSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Analysis of image steganalysis techniques to defend against statistical attac...eSAT Publishing House
This document summarizes various techniques for image steganalysis to defend against statistical attacks. It discusses how statistical properties of images can be used to detect hidden messages and describes common steganography algorithms like LSB substitution and techniques for JPEG images. It also outlines approaches for statistical embedding and detection to introduce randomness and maintain statistical distributions when hiding information in digital images.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
This document describes a system for automating power house control using wireless communication. The system uses microcontrollers, wireless modules like Zigbee, and a web interface to remotely monitor and control power outlets. Sensors measure current and send data to a server module over Zigbee. The system can automatically cut off power if a bill is unpaid or if overload is detected. A software module with PHP, JavaScript etc. allows users to view power status on internet-connected devices. The wireless system is low-cost, low data rate, self-healing and provides energy usage information to users for power management remotely.
A novel way of verifiable redistribution of the secret in a multiuser environ...eSAT Publishing House
This document proposes a novel method for verifiably redistributing secrets in a multi-user environment using threshold secret sharing and group keys. It involves a dealer distributing shares of a secret to authorized users, and a group manager who verifies members and notifies the dealer of any changes. If the group changes, the dealer generates new shares without involving old members, encrypts them using group members' public keys, and sends them to the group manager. The manager distributes the shares to the group using a group key. Members can verify their shares against hash values from the dealer. This allows secret redistribution without private channels or involvement of old members in generating new shares.
Effect of chemical treatments on the characteristics of regular and compact c...eSAT Publishing House
1) The document examines the effects of various chemical treatments (scouring, bleaching, mercerizing, dyeing) on the physical properties of regular and compact cotton spun yarns.
2) Testing showed that chemical treatments generally increased yarn tenacity but decreased elongation. Work of rupture was higher for slack mercerized yarns.
3) Bleached yarns showed poorer abrasion resistance while other treated yarns did not change. All treatments increased yarn friction. Slack mercerization significantly increased shrinkage for both yarn types.
Analysis of rc bridge decks for selected national and internationalstandard l...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Harmonized scheme for data mining technique to progress decision support syst...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Performance of blended corrosion inhibitors for reinforced concreteeSAT Publishing House
This document discusses the performance of blended corrosion inhibitors for reinforced concrete. It summarizes the results of experiments conducted to evaluate the effect of a blend of calcium nitrite and calcium hypophosphite corrosion inhibitors on the physical properties and corrosion resistance of cement and concrete. The experiments found that the corrosion inhibitor blend did not adversely affect the setting time, pH, or compressive strength of cement or concrete. Electrochemical tests also showed that the corrosion inhibitor blend reduced the corrosion current density, demonstrating its potential to control corrosion initiation and propagation in reinforced concrete.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
An overview of methods for monitoring web services based on the quality of se...eSAT Publishing House
This document discusses methods for monitoring web services based on quality of service. It begins by introducing service-oriented architecture and the importance of monitoring web service quality parameters. It then classifies existing monitoring techniques into three approaches: service-level, communication-level, and orchestration-level monitoring. At each level, it provides examples of how specific quality parameters like response time could be measured. It also discusses where monitoring can take place, such as on the client-side or server-side, and provides examples of monitoring tools that operate at each level and location. In conclusion, the document outlines how monitoring can help improve and ensure quality of web services.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Economical placement of shear walls in a moment resisting frame for earthquak...eSAT Publishing House
This document analyzes different configurations of shear wall placement in a 5-story reinforced concrete building to determine the optimal configuration for earthquake resistance. Five frames with different shear wall layouts are modeled and analyzed. Frame 2, with shear walls at the building core, performed best with significant reductions in lateral displacement, bending moment, shear force, and axial force compared to the frame without shear walls. For economic feasibility, the top 1-2 stories were removed from Frames 2 and 3. This curtailment further reduced lateral displacement, inter-story drift, bending moment, and shear force, particularly for Frames 7-9. In conclusion, curtailing the top 1-2 stories of Frames 2 or 3 provided the best
Application of ibearugbulem’s model for optimizing granite concrete mixeSAT Publishing House
This document presents a mathematical model for predicting the compressive strength of granitic concrete using Ibearugbulem's regression model. 45 concrete cubes were cast using different mix ratios and tested to determine compressive strength. The first 11 mixes were used to determine the regression model coefficients, and the full 15 mixes were used to validate the model. A t-test found the model results adequately predicted the experimental compressive strengths at a 95% confidence level. The developed model can predict compressive strength or mix proportions for granitic concrete given one is known.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
This paper introduces the Artifi cial Neural Networks (ANN) function to model probabilistic dependencies, in supervised classification tasks for discrimination between earthquakes and explosions problems. ANNs are regarded as the discriminating tools to classify the natural seismic events (earthquakes) from the artifi cial ones (Man-made explosions) based on the seismic signals recorded at regional distances. The bulk of our novel is to improve the obtained numerical results using this advance technique. The ANNs, by testing the different types of seismic features, showed the potential application of this method to discriminate the classes. During the above study, we found out that the Neural Networks have been used in a fully innovative manner in this work. Here the ARMA coefficients filters detects
the type of the source whenever a natural or artificial source changes the nature of the background noise of the seismograms. During the above study, we found out that this algorithm is sometimes capable to alarm the further natural seismological events just a little before the onset.
Free Vibrational Analysis of Cracked and Un-cracked Cantilever BeamIRJET Journal
1. The document analyzes the free vibrational behavior of cracked and un-cracked cantilever beams through numerical analysis using ANSYS software, analytical solutions using Euler beam theory, and experimental modal analysis.
2. Natural frequencies of the beams are obtained for the first three vibration modes. Ten cracked beam models with varying cross-sections, crack locations, and crack depths are analyzed.
3. Curve fitting and fuzzy logic techniques are introduced to identify crack parameters like location and depth based on the natural frequencies. Results from finite element analysis, numerical analysis, fuzzy logic and experiments are compared.
MAINTAINING UNIFORM DENSITY AND MINIMIZING THE CHANCE OF ERROR IN A LARGE SCA...IJNSA Journal
In a real application area, the WSN is not a homogeneous network where the nodes are maintained in respective coordinate position relatively same to each other. But rather homogeneous it should be heterogeneous, where the relative positional difference for different nodes are different. In this paper a better scheme is being proposed which will take care of the life time and density of a WSN. Sun et. al. proposed uniform density in WSN by assuming the network as a homogeneous network ,but in this paper without taking a homogeneous network the same problem is being solved by using the Gaussian probability density function. And also the chance of error in receiving the message from the WSN to the base station is minimized by using priori probability algorithm.
International Journal of Engineering and Science Invention (IJESI)inventionjournals
International Journal of Engineering and Science Invention (IJESI) is an international journal intended for professionals and researchers in all fields of computer science and electronics. IJESI publishes research articles and reviews within the whole field Engineering Science and Technology, new teaching methods, assessment, validation and the impact of new technologies and it will continue to provide information on the latest trends and developments in this ever-expanding subject. The publications of papers are selected through double peer reviewed to ensure originality, relevance, and readability. The articles published in our journal can be accessed online.
This document compares four neural network models (feed-forward backpropagation, general regression, Elman, and radial basis function networks) for predicting tool wear in turning processes. Experimental tool wear data from central composite design experiments varying cutting speed, feed rate, depth of cut, and other factors was used to train and test the neural networks. The models were trained on 440 patterns of data and tested on the remaining 229 patterns. Results showed that the feed-forward backpropagation network was the best-performing model for predicting tool wear among the four neural network types considered.
IRJET- Assessment of Blood Vessel using Fat Cell AcousticsIRJET Journal
This document presents research on assessing blood vessels using fat cell acoustics. It discusses intra-body communication techniques using the human body as a transmission medium. Specifically, it proposes a novel technique called fat-intra body microwave communication that utilizes fat tissue between skin and muscle. The research aims to characterize wireless channels within the body using an electro-larynx scope to generate sound signals, an acoustic sensor to receive the signals, and signal processing algorithms like blind source separation and rational dilation wavelet transform. Experimental results on fat, muscle and combined fat-muscle tissue are presented and analyzed to evaluate the proposed technique.
Structural health monitoring uses non-destructive methods like artificial neural networks to estimate the condition of structures over time. Artificial neural networks can identify damage locations and severity by detecting changes in structural parameters from the initial condition. Previous research has applied artificial neural networks to detect cracks and damage in different types of structures like beams and bridges by identifying changes in stiffness, damping, and natural frequencies.
Vibration Analysis of Structure using Tune Mass DamperIRJET Journal
This document discusses using a tuned mass damper (TMD) to control vibrations in structures. It begins by introducing TMDs and how they work, using a secondary mass attached to the primary structure through springs and dampers. The mass is tuned to have a natural frequency close to the structure.
It then describes analyzing a 17-story building model both with and without a TMD using response spectrum analysis software. Response spectrum analysis involves calculating the response of structures with different natural frequencies and damping when subjected to vibrations. Key responses like displacement, drift, and frequency are compared.
The study found that attaching a TMD, tuned to the building's fundamental frequency, at the top floor was effective at
Design and analysing of compact microstrip antenna with defected ground struc...eSAT Journals
Abstract
In this paper a small size microstrip antenna with DGS (Defected ground structure) is designed and analyzed for UWB(Ultra
Wide Band) application. This antenna cover the complete frequency range of 3.1 to 10.6 GHz with a very small geometry as
compared to a conventional antenna Dielectric substrate use in this antenna is Fr-4. This antenna is designed with a dimension is
36mm × 34 mm on a dielectric substrate Fr-4 whose permittivity εr =4.4 and height h = 1.6 mm. The result for return losses and
radiation patterns is simulated by using HFSS (High Frequency structure simulation) software. The High frequency structure
simulator is employed to analyze the planned antenna and simulated results on return loss, The ground element of the proposed
antenna is taken in the form of defected ground structure (DGS).
Keywords: Microstrip Antenna, UWB, DGS, Wide band, HFSS
Design and analysing of compact microstrip antenna with defected ground struc...eSAT Journals
1) A compact microstrip antenna with defected ground structure was designed and analyzed for ultra-wideband applications ranging from 3.1-10.6 GHz.
2) The antenna was simulated using HFSS software and was found to have return losses between -51.87 dB to -20.96 dB across multiple frequencies within the UWB range.
3) VSWR values between 1.07-1.55 were obtained at several frequencies, indicating good impedance matching and broadband performance of the compact antenna.
Field Strength Predicting Outdoor ModelsIRJET Journal
This document discusses several outdoor propagation models used to predict radio signal strength and path loss over distance. It begins by introducing concepts of transmission power, signal strength, and path loss. It then describes common factors that affect outdoor radio propagation like diffraction, reflection, refraction, and scattering. The rest of the document summarizes several empirical, theoretical, and physical propagation models including Okumura, Hata, ECC-33, COST-231 Hata, and Egli models. These models use different methods and equations to predict path loss and were developed based on extensive radio signal measurement data in various outdoor environments.
The document describes applying an adaptive neuro-fuzzy inference system (ANFIS) for grade estimation of copper at the Sarcheshmeh porphyry copper deposit in Iran. ANFIS combines artificial neural networks and fuzzy logic to estimate copper grades based on sample coordinates. Training ANFIS adjusts membership functions to minimize error between predicted and actual grades. ANFIS achieved a higher R2 value of 0.8987 compared to 0.4571 for ANN and 0.6889 for kriging, demonstrating its ability to improve grade estimation.
IRJET- Seismic Analysis of Composite FramesIRJET Journal
This document summarizes a study on the seismic analysis of composite frames made of different materials. Finite element analysis was conducted using ANSYS software to determine the natural frequencies and mode shapes of frames made of steel, carbon fiber reinforced polymer, glass fiber reinforced polymer, and bamboo fiber reinforced polymer. Time history analysis was then performed by applying recorded earthquake acceleration data to determine the seismic response of each frame type. The results showed that the steel frame experienced the lowest maximum acceleration under seismic loading, while the glass fiber frame experienced the highest, indicating its relative seismic performance depends on the material properties of the composite.
IRJET- Overview of Artificial Neural Networks Applications in Groundwater...IRJET Journal
This document provides an overview of applications of artificial neural networks (ANNs) in groundwater studies. It discusses how ANNs mimic the human brain and can be used to model complex groundwater systems. It then summarizes several ways that ANNs have been successfully applied in groundwater hydrodynamics, water resources management, time series forecasting, and other areas. These include using ANNs to model coastal aquifers, predict groundwater levels, forecast water quality, and combine ANNs with other models for improved results. In summary, ANNs are a powerful tool for solving hydrogeological problems and have been widely used in groundwater research.
Dynamics Behaviour of Multi Storeys Framed Structures by of Iterative Method AM Publications
Dynamics refers to the branch of mechanics that deals with the movement of objects and the forces that drive that movement. Structural analysis which covers the behaviour of structures subjected to dynamic (actions having high acceleration) loading. Dynamic loads include people, wind, waves, traffic, earthquakes, and blasts. Any structure can be subjected to dynamic loading. Dynamic analysis can be used to find dynamic displacements, time history, and the frequency content of the load. One analysis technique for calculating the linear response of structures to dynamic loading is a modal analysis. In modal analysis, we decompose the response of the structure into several vibration modes. A mode is defined by its frequency and shape. Structural engineers call the mode with the shortest frequency (the longest period) the fundamental mode. This paper presents a study on mode shape, inertia force, spring force and deflection of multi storied framed structures by comparison of stodola’s and Holzer method. This study involves in examination of theoretical investigations of multi storied framed structures. Overall four storey multi storied framed structures and two methods were analysed & comparison of all the mode shape, inertia force, spring force and deflection at the critical cross-section with same configuration loading by keeping all other parameters constant. The theoretical data are calculated using code IS 1893, IS 4326, IS 13920. The all storey mass and stiffens are analysed under the cantilever condition. The research project aims to provide which method is most accuracy to find the mode shape, spring force deflection and inertia force. The studies reveal that the theoretical investigations Stodola’s method is most accuracy compare to the Holzer method. The maximum mode shape, spring force, spring deflection and inertia force is 87.29%, 80 %, 89% and 72% is higher the Stodola’s method compare than Holzer method in same configuration.
Ghosh D. P. and Gopalakrishnan S "Time domain structural health monitoring with magnetostrictive patches using five stage hierarchical neural networks."
Proceedings of ICASI - 2004
International Conference on Advances in Structural Integrity
July 14-17, 2004, Indian Institute of Science, Bangalore, India.
Evolutionary algorithms for optimum design of thin broadband multilayer micro...eSAT Journals
Abstract In this paper we focused on the comparative study of three very popular and most recently developed nature inspired evolutionary algorithms namely Biogeography based optimization algorithm (BBO), Flower pollination algorithm (FPA) and Artificial bee colony optimization algorithm (ABC) for developing a model of 6 layers thin broadband (0.2-20GHz) microwave absorber. The model is optimized for oblique wide angle of incidence (450, 600) taking both TE and TM polarization of the electromagnetic wave under consideration. The primary goal of our design is to minimizing the overall reflection coefficient of the absorber and its total thickness by selecting the proper layer of materials from a predefined database of existing materials. 8 different models are presented and synthesize considering both these design consideration simultaneously and for only overall reflection coefficient of the absorber while total thickness is not taken into consideration during optimization for each cases. The optimum values of all the significant parameters of the multilayer absorber for different models have been compared and tabulated using BBO, FPA and ABC algorithms which established the superiority of our proposed design. Keywords: Multilayer microwave absorber, Oblique incidence, Broadband, Evolutionary algorithms, Arbitrary polarization
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
This document summarizes a study that used artificial neural networks to estimate soil moisture levels from cosmic ray sensor neutron count data. Specifically:
- Five neural networks (FFBPN, MLPN, RBFN, Elman, PNN) were tested on cosmic ray sensor data from two Australian sites to estimate soil moisture levels from the Australian Water Availability Project database.
- The Elman neural network achieved the best performance, estimating soil moisture levels with 94% accuracy for one site and 91% accuracy for the other.
- This study demonstrated that neural networks can effectively estimate continuous soil moisture levels remotely using cosmic ray sensor neutron count time series data as input.
Supervised machine learning based dynamic estimation of bulk soil moisture us...eSAT Journals
Abstract In this paper artificial neural network based sensor informatics architecture has been investigated; including proposed continuous daily estimation of area wise surface soil moisture using cosmic ray sensor’s neutron count time series. Study was conducted based on cosmic ray data available from two Australian locations. The main focus of this study was to develop a data driven approach to convert neutron counts into area wise ground surface soil moisture estimates. Independent surface soil moisture data from the Australian Water Availability Project (AWAP) was used as ground truth. A comparative study using five different types of neural networks, namely, Feed Forward Back Propagation (FFBPN), Multi-Layer Perceptron (MLPN), Radial Basis Function (RBFN), Elman (EN), and Probabilistic networks (PNN) was conducted to evaluate the overall soil moisture estimation accuracy. Best performance from the Elman network outperformed all other neural networks with 94% accuracy with 92% sensitivity and 97% specificity based on Tullochgorum data. Overall high accuracy proved the effectiveness of the Elman neural network to estimate surface soil moisture continuously using cosmic ray sensors. Index Terms: Artificial Neural Network, Surface Soil Moisture, Cosmic Ray Sensors, Neutron Counts.
Similar to Application of artificial neural network for blast performance evaluation (20)
Hudhud cyclone caused extensive damage in Visakhapatnam, India in October 2014, especially to tree cover. This will likely impact the local environment in several ways: increased air pollution as trees absorb less; higher temperatures without tree canopy; increased erosion and landslides. It also created large amounts of waste from destroyed trees. Proper management of solid waste is needed to prevent disease spread. Suggested measures include restoring damaged plants, building fountains to reduce heat, mandating light-colored buildings, improving waste management, and educating public on health risks. Overall, changes are needed to water, land, and waste practices to rebuild the environment after the cyclone removed green cover.
Impact of flood disaster in a drought prone area – case study of alampur vill...eSAT Publishing House
1) In September-October 2009, unprecedented heavy rainfall and dam releases caused widespread flooding in Alampur village in Mahabub Nagar district, a historically drought-prone area.
2) The flood damaged or destroyed homes, buildings, infrastructure, crops, and documents. It displaced many residents and cut off the village.
3) The socioeconomic conditions and mud-based construction of homes in the village exacerbated the flood's impacts, making damage more severe and recovery more difficult.
The document summarizes the Hudhud cyclone that struck Visakhapatnam, India in October 2014. It describes the cyclone's formation, rapid intensification to winds of 175 km/h, and landfall near Visakhapatnam. The cyclone caused extensive damage estimated at over $1 billion and at least 109 deaths in India and Nepal. Infrastructure like buildings, bridges, and power lines were destroyed. Crops and fishing boats were also damaged. The document then discusses coping strategies and improvements needed to disaster management plans to better prepare for future cyclones.
Groundwater investigation using geophysical methods a case study of pydibhim...eSAT Publishing House
This document summarizes the results of a geophysical investigation using vertical electrical sounding (VES) methods at 13 locations around an industrial area in India. The VES data was interpreted to generate geo-electric sections and pseudo-sections showing subsurface resistivity variations. Three main layers were typically identified - a high resistivity topsoil, a weathered middle layer, and a basement rock. Pseudo-sections revealed relatively more weathered areas in the northwest and southwest. Resistivity sections helped identify zones of possible high groundwater potential based on low resistivity anomalies sandwiched between more resistive layers. The study concluded the electrical resistivity method was useful for understanding subsurface geology and identifying areas prospective for groundwater exploration.
Flood related disasters concerned to urban flooding in bangalore, indiaeSAT Publishing House
1. The document discusses urban flooding in Bangalore, India. It describes how factors like heavy rainfall, population growth, and improper land use have contributed to increased flooding in the city.
2. Flooding events in 2013 are analyzed in detail. A November rainfall caused runoff six times higher than the drainage capacity, inundating low-lying residential areas.
3. Impacts of urban flooding include disrupted daily life, damaged infrastructure, and decreased economic activity in affected areas. The document calls for improved flood management strategies to better mitigate urban flooding risks in Bangalore.
Enhancing post disaster recovery by optimal infrastructure capacity buildingeSAT Publishing House
This document discusses enhancing post-disaster recovery through optimal infrastructure capacity building. It presents a model to minimize the cost of meeting demand using auxiliary capacities when disaster damages infrastructure. The model uses genetic algorithms to select optimal capacity combinations. The document reviews how infrastructure provides vital services supporting recovery activities and discusses classifying infrastructure into six types. When disaster reduces infrastructure services, a gap forms between community demands and available support, hindering recovery. The proposed research aims to identify this gap and optimize capacity selection to fill it cost-effectively.
Effect of lintel and lintel band on the global performance of reinforced conc...eSAT Publishing House
This document analyzes the effect of lintels and lintel bands on the seismic performance of reinforced concrete masonry infilled frames through non-linear static pushover analysis. Four frame models are considered: a frame with a full masonry infill wall; a frame with a central opening but no lintel/band; a frame with a lintel above the opening; and a frame with a lintel band above the opening. The results show that the full infill wall model has 27% higher stiffness and 32% higher strength than the model with just an opening. Models with lintels or lintel bands have slightly higher strength and stiffness than the model with just an opening. The document concludes lintels and lintel
Wind damage to trees in the gitam university campus at visakhapatnam by cyclo...eSAT Publishing House
1) A cyclone with wind speeds of 175-200 kph caused massive damage to the green cover of Gitam University campus in Visakhapatnam, India. Thousands of trees were uprooted or damaged.
2) A study assessed different types of damage to trees from the cyclone, including defoliation, salt spray damage, damage to stems/branches, and uprooting. Certain tree species were more vulnerable than others.
3) The results of the study can help in selecting more wind-resistant tree species for future planting and reducing damage from future storms.
Wind damage to buildings, infrastrucuture and landscape elements along the be...eSAT Publishing House
1) A visual study was conducted to assess wind damage from Cyclone Hudhud along the 27km Visakha-Bheemli Beach road in Visakhapatnam, India.
2) Residential and commercial buildings suffered extensive roof damage, while glass facades on hotels and restaurants were shattered. Infrastructure like electricity poles and bus shelters were destroyed.
3) Landscape elements faced damage, including collapsed trees that damaged pavements, and debris in parks. The cyclone wiped out over half the city's green cover and caused beach erosion around protected areas.
1) The document reviews factors that influence the shear strength of reinforced concrete deep beams, including compressive strength of concrete, percentage of tension reinforcement, vertical and horizontal web reinforcement, aggregate interlock, shear span-to-depth ratio, loading distribution, side cover, and beam depth.
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Role of voluntary teams of professional engineers in dissater management – ex...eSAT Publishing House
1) A team of 17 professional engineers from various disciplines called the "Griha Seva" team volunteered after the 2001 Gujarat earthquake to provide technical assistance.
2) The team conducted site visits, assessments, testing and recommended retrofitting strategies for damaged structures in Bhuj and Ahmedabad. They were able to fully assess and retrofit 20 buildings in Ahmedabad.
3) Factors observed that exacerbated the earthquake's impacts included unplanned construction, non-engineered buildings, improper prior retrofitting, and defective materials and workmanship. The professional engineers' technical expertise was crucial for effective post-disaster management.
This document discusses risk analysis and environmental hazard management. It begins by defining risk, hazard, and toxicity. It then outlines the steps involved in hazard identification, including HAZID, HAZOP, and HAZAN. The document presents a case study of a hypothetical gas collecting station, identifying potential accidents and hazards. It discusses quantitative and qualitative approaches to risk analysis, including calculating a fire and explosion index. The document concludes by discussing hazard management strategies like preventative measures, control measures, fire protection, relief operations, and the importance of training personnel on safety.
Review study on performance of seismically tested repaired shear wallseSAT Publishing House
This document summarizes research on the performance of reinforced concrete shear walls that have been repaired after damage. It begins with an introduction to shear walls and their failure modes. The literature review then discusses the behavior of original shear walls as well as different repair techniques tested by other researchers, including conventional repair with new concrete, jacketing with steel plates or concrete, and use of fiber reinforced polymers. The document focuses on evaluating the strength retention of shear walls after being repaired with various methods.
Monitoring and assessment of air quality with reference to dust particles (pm...eSAT Publishing House
This document summarizes a study on monitoring and assessing air quality with respect to dust particles (PM10 and PM2.5) in the urban environment of Visakhapatnam, India. Sampling was conducted in residential, commercial, and industrial areas from October 2013 to August 2014. The average PM2.5 and PM10 concentrations were within limits in residential areas but moderate to high in commercial and industrial areas. Exceedance factor levels indicated moderate pollution for residential areas and moderate to high pollution for commercial and industrial areas. There is a need for management measures like improved public transport and green spaces to combat particulate air pollution in the study areas.
Low cost wireless sensor networks and smartphone applications for disaster ma...eSAT Publishing House
This document describes a low-cost wireless sensor network and smartphone application system for disaster management. The system uses an Arduino-based wireless sensor network comprising nodes with various sensors to monitor the environment. The sensor data is transmitted to a central gateway and then to the cloud for analysis. A smartphone app connected to the cloud can detect disasters from the sensor data and send real-time alerts to users to help with early evacuation. The system aims to provide low-cost localized disaster detection and warnings to improve safety.
Coastal zones – seismic vulnerability an analysis from east coast of indiaeSAT Publishing House
This document summarizes an analysis of seismic vulnerability along the east coast of India. It discusses the geotectonic setting of the region as a passive continental margin and reports some moderate seismic activity from offshore in recent decades. While seismic stability cannot be assumed given events like the 2004 tsunami, no major earthquakes have been recorded along this coast historically. The document calls for further study of active faults, neotectonics, and implementation of improved seismic building codes to mitigate vulnerability.
Can fracture mechanics predict damage due disaster of structureseSAT Publishing House
This document discusses how fracture mechanics can be used to better predict damage and failure of structures. It notes that current design codes are based on small-scale laboratory tests and do not account for size effects, which can lead to more brittle failures in larger structures. The document outlines how fracture mechanics considers factors like size effect, ductility, and minimum reinforcement that influence the strength and failure behavior of structures. It provides examples of how fracture mechanics has been applied to problems like evaluating shear strength in deep beams and investigating a failure of an oil platform structure. The document argues that fracture mechanics provides a more scientific basis for structural design compared to existing empirical code provisions.
This document discusses the assessment of seismic susceptibility of reinforced concrete (RC) buildings. It begins with an introduction to earthquakes and the importance of vulnerability assessment in mitigating earthquake risks and losses. It then describes modeling the nonlinear behavior of RC building elements and performing pushover analysis to evaluate building performance. The document outlines modeling RC frames and developing moment-curvature relationships. It also summarizes the results of pushover analyses on sample 2D and 3D RC frames with and without shear walls. The conclusions emphasize that pushover analysis effectively assesses building properties but has limitations, and that capacity spectrum method provides appropriate results for evaluating building response and retrofitting impact.
A geophysical insight of earthquake occurred on 21 st may 2014 off paradip, b...eSAT Publishing House
1) A 6.0 magnitude earthquake occurred off the coast of Paradip, Odisha in the Bay of Bengal on May 21, 2014 at a depth of around 40 km.
2) Analysis of magnetic and bathymetric data from the area revealed the presence of major lineaments in NW-SE and NE-SW directions that may be responsible for seismic activity through stress release.
3) Movements along growth faults at the margins of large Bengal channels, due to large sediment loads, could also contribute to seismic events by triggering movements along the faults.
Effect of hudhud cyclone on the development of visakhapatnam as smart and gre...eSAT Publishing House
This document discusses the effects of Cyclone Hudhud on the development of Visakhapatnam as a smart and green city through a case study and preliminary surveys. The surveys found that 31% of participants had experienced cyclones, 9% floods, and 59% landslides previously in Visakhapatnam. Awareness of disaster alarming systems increased from 14% before the 2004 tsunami to 85% during Cyclone Hudhud, while awareness of disaster management systems increased from 50% before the tsunami to 94% during Hudhud. The surveys indicate that initiatives after the tsunami improved awareness and preparedness. Developing Visakhapatnam as a smart, green city should consider governance
Software Engineering and Project Management - Introduction, Modeling Concepts...Prakhyath Rai
Introduction, Modeling Concepts and Class Modeling: What is Object orientation? What is OO development? OO Themes; Evidence for usefulness of OO development; OO modeling history. Modeling
as Design technique: Modeling, abstraction, The Three models. Class Modeling: Object and Class Concept, Link and associations concepts, Generalization and Inheritance, A sample class model, Navigation of class models, and UML diagrams
Building the Analysis Models: Requirement Analysis, Analysis Model Approaches, Data modeling Concepts, Object Oriented Analysis, Scenario-Based Modeling, Flow-Oriented Modeling, class Based Modeling, Creating a Behavioral Model.
Comparative analysis between traditional aquaponics and reconstructed aquapon...bijceesjournal
The aquaponic system of planting is a method that does not require soil usage. It is a method that only needs water, fish, lava rocks (a substitute for soil), and plants. Aquaponic systems are sustainable and environmentally friendly. Its use not only helps to plant in small spaces but also helps reduce artificial chemical use and minimizes excess water use, as aquaponics consumes 90% less water than soil-based gardening. The study applied a descriptive and experimental design to assess and compare conventional and reconstructed aquaponic methods for reproducing tomatoes. The researchers created an observation checklist to determine the significant factors of the study. The study aims to determine the significant difference between traditional aquaponics and reconstructed aquaponics systems propagating tomatoes in terms of height, weight, girth, and number of fruits. The reconstructed aquaponics system’s higher growth yield results in a much more nourished crop than the traditional aquaponics system. It is superior in its number of fruits, height, weight, and girth measurement. Moreover, the reconstructed aquaponics system is proven to eliminate all the hindrances present in the traditional aquaponics system, which are overcrowding of fish, algae growth, pest problems, contaminated water, and dead fish.
Introduction- e - waste – definition - sources of e-waste– hazardous substances in e-waste - effects of e-waste on environment and human health- need for e-waste management– e-waste handling rules - waste minimization techniques for managing e-waste – recycling of e-waste - disposal treatment methods of e- waste – mechanism of extraction of precious metal from leaching solution-global Scenario of E-waste – E-waste in India- case studies.
Batteries -Introduction – Types of Batteries – discharging and charging of battery - characteristics of battery –battery rating- various tests on battery- – Primary battery: silver button cell- Secondary battery :Ni-Cd battery-modern battery: lithium ion battery-maintenance of batteries-choices of batteries for electric vehicle applications.
Fuel Cells: Introduction- importance and classification of fuel cells - description, principle, components, applications of fuel cells: H2-O2 fuel cell, alkaline fuel cell, molten carbonate fuel cell and direct methanol fuel cells.
Electric vehicle and photovoltaic advanced roles in enhancing the financial p...IJECEIAES
Climate change's impact on the planet forced the United Nations and governments to promote green energies and electric transportation. The deployments of photovoltaic (PV) and electric vehicle (EV) systems gained stronger momentum due to their numerous advantages over fossil fuel types. The advantages go beyond sustainability to reach financial support and stability. The work in this paper introduces the hybrid system between PV and EV to support industrial and commercial plants. This paper covers the theoretical framework of the proposed hybrid system including the required equation to complete the cost analysis when PV and EV are present. In addition, the proposed design diagram which sets the priorities and requirements of the system is presented. The proposed approach allows setup to advance their power stability, especially during power outages. The presented information supports researchers and plant owners to complete the necessary analysis while promoting the deployment of clean energy. The result of a case study that represents a dairy milk farmer supports the theoretical works and highlights its advanced benefits to existing plants. The short return on investment of the proposed approach supports the paper's novelty approach for the sustainable electrical system. In addition, the proposed system allows for an isolated power setup without the need for a transmission line which enhances the safety of the electrical network
Redefining brain tumor segmentation: a cutting-edge convolutional neural netw...IJECEIAES
Medical image analysis has witnessed significant advancements with deep learning techniques. In the domain of brain tumor segmentation, the ability to
precisely delineate tumor boundaries from magnetic resonance imaging (MRI)
scans holds profound implications for diagnosis. This study presents an ensemble convolutional neural network (CNN) with transfer learning, integrating
the state-of-the-art Deeplabv3+ architecture with the ResNet18 backbone. The
model is rigorously trained and evaluated, exhibiting remarkable performance
metrics, including an impressive global accuracy of 99.286%, a high-class accuracy of 82.191%, a mean intersection over union (IoU) of 79.900%, a weighted
IoU of 98.620%, and a Boundary F1 (BF) score of 83.303%. Notably, a detailed comparative analysis with existing methods showcases the superiority of
our proposed model. These findings underscore the model’s competence in precise brain tumor localization, underscoring its potential to revolutionize medical
image analysis and enhance healthcare outcomes. This research paves the way
for future exploration and optimization of advanced CNN models in medical
imaging, emphasizing addressing false positives and resource efficiency.
Advanced control scheme of doubly fed induction generator for wind turbine us...IJECEIAES
This paper describes a speed control device for generating electrical energy on an electricity network based on the doubly fed induction generator (DFIG) used for wind power conversion systems. At first, a double-fed induction generator model was constructed. A control law is formulated to govern the flow of energy between the stator of a DFIG and the energy network using three types of controllers: proportional integral (PI), sliding mode controller (SMC) and second order sliding mode controller (SOSMC). Their different results in terms of power reference tracking, reaction to unexpected speed fluctuations, sensitivity to perturbations, and resilience against machine parameter alterations are compared. MATLAB/Simulink was used to conduct the simulations for the preceding study. Multiple simulations have shown very satisfying results, and the investigations demonstrate the efficacy and power-enhancing capabilities of the suggested control system.
Rainfall intensity duration frequency curve statistical analysis and modeling...bijceesjournal
Using data from 41 years in Patna’ India’ the study’s goal is to analyze the trends of how often it rains on a weekly, seasonal, and annual basis (1981−2020). First, utilizing the intensity-duration-frequency (IDF) curve and the relationship by statistically analyzing rainfall’ the historical rainfall data set for Patna’ India’ during a 41 year period (1981−2020), was evaluated for its quality. Changes in the hydrologic cycle as a result of increased greenhouse gas emissions are expected to induce variations in the intensity, length, and frequency of precipitation events. One strategy to lessen vulnerability is to quantify probable changes and adapt to them. Techniques such as log-normal, normal, and Gumbel are used (EV-I). Distributions were created with durations of 1, 2, 3, 6, and 24 h and return times of 2, 5, 10, 25, and 100 years. There were also mathematical correlations discovered between rainfall and recurrence interval.
Findings: Based on findings, the Gumbel approach produced the highest intensity values, whereas the other approaches produced values that were close to each other. The data indicates that 461.9 mm of rain fell during the monsoon season’s 301st week. However, it was found that the 29th week had the greatest average rainfall, 92.6 mm. With 952.6 mm on average, the monsoon season saw the highest rainfall. Calculations revealed that the yearly rainfall averaged 1171.1 mm. Using Weibull’s method, the study was subsequently expanded to examine rainfall distribution at different recurrence intervals of 2, 5, 10, and 25 years. Rainfall and recurrence interval mathematical correlations were also developed. Further regression analysis revealed that short wave irrigation, wind direction, wind speed, pressure, relative humidity, and temperature all had a substantial influence on rainfall.
Originality and value: The results of the rainfall IDF curves can provide useful information to policymakers in making appropriate decisions in managing and minimizing floods in the study area.
Embedded machine learning-based road conditions and driving behavior monitoringIJECEIAES
Car accident rates have increased in recent years, resulting in losses in human lives, properties, and other financial costs. An embedded machine learning-based system is developed to address this critical issue. The system can monitor road conditions, detect driving patterns, and identify aggressive driving behaviors. The system is based on neural networks trained on a comprehensive dataset of driving events, driving styles, and road conditions. The system effectively detects potential risks and helps mitigate the frequency and impact of accidents. The primary goal is to ensure the safety of drivers and vehicles. Collecting data involved gathering information on three key road events: normal street and normal drive, speed bumps, circular yellow speed bumps, and three aggressive driving actions: sudden start, sudden stop, and sudden entry. The gathered data is processed and analyzed using a machine learning system designed for limited power and memory devices. The developed system resulted in 91.9% accuracy, 93.6% precision, and 92% recall. The achieved inference time on an Arduino Nano 33 BLE Sense with a 32-bit CPU running at 64 MHz is 34 ms and requires 2.6 kB peak RAM and 139.9 kB program flash memory, making it suitable for resource-constrained embedded systems.
Embedded machine learning-based road conditions and driving behavior monitoring
Application of artificial neural network for blast performance evaluation
1. IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308
__________________________________________________________________________________________
Volume: 03 Issue: 05 | May-2014, Available @ http://www.ijret.org 564
APPLICATION OF ARTIFICIAL NEURAL NETWORK FOR BLAST
PERFORMANCE EVALUATION
Ratnesh Trivedi1
, T.N.Singh2
, Keshav Mudgal3
, Neel Gupta4
1
Senior Scientist, CSIR-Central Institute of Mining and Fuel Research, Dhanbad
2
Professor, Department of Earth Sciences, Indian Institute of Technology Mumbai, Powai, Mumbai,India
3
Student, B.Tech (Mining), Indian School of Mines, Dhanbad
4
Student, M.Tech Dual Degree(Mining), Indian School of Mines, Dhanbad
Abstract
Despite of technological advancement in the field of rock breakage, blasting is still an economical means of rock excavation for
mining or civil engineering projects. Blasting has some environmental as well as societal side effects such as ground vibrations, air
blasts, noises, back breaks, fly rocks, dusts and, of course, annoyance of inhabitants living surrounding the mining areas. Recent
developments in the field of blasting techniques can minimize such ill effects by optimizing rock friendly explosive and blast design
parameters. The purpose of this paper is to present the techniques, advances, problems and likely direction of future developments in
exploring the applications of Artificial Neural Networks (ANN) in rock fragmentation by blasting and its significance in minimizing
side effects to environment in particular and society at large. Many researchers have found the back-propagation algorithm in ANN is
especially capable of solving predictive problems in rock blasting. ANN has been successfully applied in predicting, controlling,
assessing impact of blast design parameters, ground vibrations, air blasts, back breaks etc. in mines. ANN needs to be applied in
certain grey areas like predicting and controlling fly rock hazards in opencast mines, blast induced dust, blasting in jointed rockmass
etc.
Keywords: Artificial Neural Networks; Blasting; Mining; Rock Fragmentation; Ground Vibrations; Airblasts; Flyrocks.
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1. INTRODUCTION
Drilling and blasting combination is still a cheapest method of
rock breakage and in mining as well as in civil construction
works. Blasting, fragments the rock into pieces that are
suitable for crushing (Lawrence et al., 2002) or further
processing and is still the most commonly applied method.
Rock fragmentation has been the concern of many research
works because it is considered as the most important aspect of
production blasting, since it affects on the costs of drilling,
blasting and the efficiency of all the subsystems such as
loading, hauling and crushing in mining operations, Farmarzi
et al.(2013). When an explosive detonates in a blast hole,
instantaneously huge amount of energy in forms of pressure
and temperature liberates around the hole. Though significant
developments have taken place in explosive technology, the
explosive energy utilization has not made much progress due
to complexity of various rock parameters (Cheng and Huang,
2000; ISRM, 1992; McKenzie, 1990). Only a small proportion
of the total energy is utilized for actual breakage and
displacement of rock mass and the rest of the energy gets
spent in undesirable side effects like ground vibrations, air
blasts, noises, back breaks, flyrocks, dusts etc. (Bajpayee et
al., 2004; Hagan , 1973; Singh et al., 1994a; Wiss and
Linehan, 1978), which may further cause annoyance of the
people living surrounding the mining areas (Raina et al.,
2004).
Although, these negative effects can not be eliminated
completely yet can be minimized up to an extent of
permissible limits to avoid damage to the surrounding
environment and the existing structures (Singh et al., 1994a;
Wiss and Linehan, 1978). A study (Raina et al., 2004) of the
human response to blasting in mining localities across India
has shown that the response is not simply socio-political, as
frequently assumed. It has been reported that, irrespective of
those questioned; a basic concern for the safety of property
was the main response.
Initiation of the explosive in blast hole converts chemical
energy into a huge volume of gases and fumes. Thereby,
intense dynamic stresses gets set up around the blast hole due
to sudden acceleration of the rockmass by detonating gas
pressure on side wall. The strain waves get transmitted in to
the surrounding rockmass and generate a wave motion
(Wharton et al., 2000). These strain waves carry strain energy
that is responsible for the fragmentation of the rockmass by
means of breakage mechanism such as crushing, radial
cracking, and reflection breakage in the presence of a free
face. The crushed zone and radial fracture zone encompass a
volume of permanently deformed rock. Thereafter, the strain
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wave intensity diminishes and causes no permanent
deformation in the rockmass. The strain waves propagate
through the medium as the elastic waves. The waves in an
elastic zone are characterised by the peak velocity of the rock
particles through which they propagate and their behaviour is
essentially visco-elastic (Hagan, 1983).
The development of empirical relationship within the
parameters for a given system can be useful for prediction.
However, the laws underlying the behavior of a system are not
easily understood and the empirical regularities are not always
evident and can often be masked by environmental hazards.
That’s why, now a days, more precise techniques like
Artificial Neural Networks (ANNs), Maximum Likelihood
Classification (MLC), Genetic Algorithm (GA), Technique for
Order Preference Similarity to Ideal Solution(TOPSIS), etc.
are frequently applied (Monjezi et al., 2007; Tawadrous ,
2006).
The general difficulty in modelling of rock masses by
numerical methods is that rock is a natural material, and so the
physical or engineering properties have to be established and
the rock mass is largely discontinuous, anisotropic,
inhomogeneous and non-elastic (Harrison and Hudson ,2000).
This problem can be overcome at some extent in neural
networks as the geometrical and physical constraints of the
problem that appear in governing equations and constitutive
laws, when the numerical modeling techniques are used, are
no longer so dominating in neural networks (Jing, 2003).
2. ANN ARCHITECTURE IN BLASTING
PROBLEMS
ANN technique is relatively a new branch of the ‘artificial
intelligence’ (AI) and has been developed since the 1980s
(Grossber, 1991; Hertz et al., 1990; Rumelhart and
McClelland, 1986). The ANN technique is considered to be
one of the widely used intelligent tools for simulating complex
problems. The ANN is information –processing system
simulating structures and functions of human brain (Simpson,
1990). A neural network can be considered as an intelligent
hub since it is able to predict an output pattern on the basis of
previous learning. After completion of proper training, neural
networks can detect similarities when presented a new pattern
and accordingly, result a predicted output pattern. This
property gives excellent interpolation capability to the
technique, especially when input data is noisy. This technique
has the ability of generalizing a solution from the pattern
presented to it during the training.
The development of a neural network can be broadly classified
into three steps: defining the network architecture, training and
testing (Freeman and Skapura, 2002). A neural network must
be trained and tested before interpreting new information. The
neural network is first trained by processing a large number of
datasets. A number of algorithms are available for training the
artificial neural networks, among all the available algorithms
the back-propagation algorithm developed by Werbos (1974)
is widely applied in different field of science and engineering
because it is the most versatile and robust technique. The
algorithm based on Levenberg–Marquardt approximation
method is more powerful than commonly used gradient
descent methods. Levenberg–Marquardt approximation makes
training more accurate and faster near minima on the error
surface (Demuth and Beale, 1994).
The back-propagation algorithm is especially capable of
solving predictive problems (Huang and Wfinstedt, 1998;
Tawadrous and Katsabanis, 2006). The feed forward back-
propagation neural network (BPNN) always consists of at
least three layers; input layer, hidden layer and output layer
(Neaupane and Adhikari, 2006). Each layer consists of a
number of elementary processing units, called neurons, which
are connected to the next layer through weights, i.e. each
neuron in the input layer will send its output (as in put) for
neurons in the hidden layer and similar is the connection
between hidden and output layer. The number of hidden layers
and the number of neurons in the hidden layers change
according to the problem to be solved.
The connection strengths, also called network weights, are
adjusted in such a way that the network’s output matches a
desired response (Lippman, 1987). In the back propagation
training, the connection weights are adjusted to reduce the
output error (Tawadrous, 2006). For example, in the back
propagation network, the goal of learning is to minimize the
error between the desired outputs (target) and the actual
outputs of the network.
Artificial neural networks are highly distributed
interconnections of adaptive non-linear processing elements.
The back propagation neural network is constructed in such a
way that each layer is fully connected to the next layer. In
other words, every neuron in the input layer will send its
output to every neuron in the hidden layers, and every neuron
in the hidden layers will send its output to every neuron in the
output layer. The numbers of neurons in the input layers are
equal to numbers of input variable selected for the problem to
be solved (Grznar et al., 2007; Huang and Wfinstedt, 1998).
Feed-forward back-propagation neural network is a strong
technique of modeling for input/output pattern identification
problems ( Monjezi et al., 2011 ). A three-layer feed-forward
back-propagation neural network with 2-5-1 architecture was
trained and tested using 130 experimental and monitored blast
records from the surface coal mines of Singareni Collieries
Company Limited, Kothagudem, Andhra Pradesh, India to
evaluate and predict the blast induced vibrations. (Khandelwal
et al. 2011)
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Once the neural network has been successfully trained with
sufficient number of sample data sets, it is tested for a few
datasets whose output is already known. After validation of a
neural network, it can be used for predictions of output
parameter for the corresponding input parameters based on its
previous learning of the similar patterns (Singh, 2004).
Researchers in rock science and engineering are mostly using
multi-layer back propagation neural networks with one hidden
layer (Khandelwal and Singh, 2002; 2006; Singh and Singh,
2005; Sawmliana et al., 2007) or two hidden layers (Jing and
Hudson, 2002; Lu, 2005;Monjezi et al., 2008; Singh et al.,
2005) in addition to input and output layers depending on the
problem under study. Neural network like multi-layer
perceptron (MLP), radial basis function (RBF), and many
others are also used. (Haykin, 1994; Rai et al., 2004).
Jing and Hudson (2002) outlined the various advantages and
disadvantages of neural networks. The advantages of neural
networks are that (1) The geometrical and physical constraints
of the problem, which dominate the governing equations and
constitutive laws are not such a problem. (2) Different kinds of
neural networks can be applied to a problem. (3) There is the
possibility that the ‘perception’, we enjoy with the human
brain, may be mimicked in the neural network, so that the
programs can incorporate judgments on the basis of learning
and experiences. The drawback of neural networks is super
complicated curve fitting either over-fitting or under-fitting
(Jing, 2003). To formulate the network for any specific
problem, super complicated curve fitting occurs mainly due to
training of network with too many epochs. A strategy
developed to avoid over-fitting or under-fitting is to
investigate the goodness of prediction using different types of
network architecture and select the network with minimum
root mean square error (Hornik, 1991) and with the
application of Bayesian regulation (MacKay, 1992) while
constructing neural network. Again, neural networks with the
higher number of input variables have better predictability
(Mohamed, 2009).
The artificial intelligent method of simulating and predicting
blasting is accurate, reliable, practical, user oriented, and easy
to operate as well as useful for engineers (Lianjon et al.,
2002). Neural network models provide descriptive and
predictive capabilities and, for this reason, have been applied
through the range of rock parameter identification and
engineering activities (Hudson and Hudson, 1997).
As ANN is multidisciplinary in nature, it is being successfully
used in many industrial areas as well as in research areas.
Singh et al. (2001) have predicted the strength properties of
schistose rocks by neural network. The stability of waste
dump from dump slope angle and dump height is investigated
by Khandelwal and Singh (2002). They found very realistic
results as compared to the other analytical approach. Yang and
Zhang (1997a) have carried out the point load tests and
analyzed using ANN. Cai and Zhao (1997) have discussed
about tunnel design and optimal selection of the rock support
measure to ensure the stability of the tunnel using neural
networks. Maulenkamp and Grima (1999) have predicted
uniaxial compressive strength using neural networks. ANN
technique has been used for determining event types such as
earthquake, blasting in mines, chemical explosions, etc. from
seismological data by (Dysart and Pulli,1990; Finnie, 1999;
Musil and Plensiger, 1996; Rudajev and Ciz, 1999). Neaupane
and Achet (2004) used back propagation neural network for
landslide monitoring in higher Himalayan region. Many other
researchers have also used this technique for the prediction of
various complex parameters from simple input parameters
(Dehghani, 2007; Kim et al., 2001; Kosko, 1994; Yang and
Zhang 1997b).
3. ANN IN GROUND VIBRATIONS
Blasts, if not properly designed, may result in ground motions
of sufficient intensity to damage the nearby structures. Ground
Vibration is a seismic wave that spread out from the blast hole
when detonated in a confined manner Khandelwal, (2012 ).
Among all the ill effects of blasting, ground vibration is major
concern to the planners, designers and environmentalists
(Hagan, 1973). The prediction and control of blast-induced
ground vibration has been a subject of interest of researchers
for the last few decades (Ambraseys and Hendron, 1968;
Dowding, 1996; Duvall and Fogleson, 1962; Indian Standard,
1973; Langefors, Kihlstrom, Westerberg, 1958; Pal Roy,
1993; Wiss and Linehan, 1978, Khandelwal, 2012, Jahed et al.
2013, Duan et al. 2010, Monjezi et al. (2013), Gorgulu et al.
(2013,). The intensity of the blast-induced ground vibration is
affected by parameters such as the physical and mechanical
properties of the rock mass, characteristics of the explosive,
and the blasting design ( Gorgulu et al. 2013, Singh, Singh,
and Goyal, 1994). The surrounding rock types have moderate
influence on ground vibration as compared to blast design
(Wiss and Linehan, 1978). Geological discontinuity also plays
a significant role in the transmission of ground vibration
(Fourney et al., 1993; Singh and Sastry, 1986).
The ground vibration is measured by the peak particle velocity
(PPV). A number of empirical formulae and relationships exist
for the prediction of PPV as a function of the scaled distance
for given geological site conditions (Ambraseys and Hendron,
1968; Duvall and Fogleson, 1962; Gupta, Pal Roy, and Singh,
1987; Hendron, 1977; Indian Standard, 1973; Langefors U and
Kihlstrom, 1978; McMahon, 1993; Murrell and Joachim,
1996; Wiss, 1981, M. Monjezi et al. 2011). As the stress wave
properties are affected by many inherent variables taking part
in such a complex physical process, namely the charge
density, the rock mass properties, and the blast geometry, it
was observed that the difference of PPV at the same scaled
distance from different blast tests could vary by as much as
100 times (Dowding, 1985). Despite of numerous attempts, it
is still not possible to develop a predictor relating the intensity
of vibration to the large number of blasting parameters
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characterizing for a given situation e.g. hole diameter and
depth, number of holes blasted, spacing, burden, stemming
column height, quantity of explosive blasted per delay, and
horizontal and radial distance from the blast (Singh, 1995b;
2004).
M. Monjezi et al. (2011) developed a model to predict blast-
induced ground vibration using artificial neural network
(ANN) in the Siahbisheh project, Iran. To construct the model
maximum charge per delay, distance from blasting face to the
monitoring point, stemming and hole depth are taken as input
parameters, whereas, peak particle velocity (PPV) is
considered as an output parameter. A database consisting of
182 datasets was collected at different strategic and vulnerable
locations in and around the project. From the prepared
database, 162 datasets were used for the training and testing of
the network, whereas 20 randomly selected datasets were used
for the validation of the ANN model. A four layer feed-
forward back-propagation neural network with topology 4-10-
5-1 was found to be optimum.
Tang et al. (2007) have adopted the back-propagation neural
network model to predict the peak velocity of blast vibration.
They considered the charge hole diameter, distance, depth,
column distance between charge holes, line of least resistance,
maximum charge of single hole, maximum charge weight per
delay, stemming length, total charge, magnitude of relative
altitude and explosive distance as input parameters and found
the predicted results from artificial neural network more closer
than those from empirical predictors.
Singh (1995a) studied the blast induced ground vibration at
Dharapani Magnesite Mine, Pitthoragarh Himalaya in India
and predicted PPV using neural networks. Khandelwal and
Singh (2006) have underlined the significance of neural
network in the prediction of ground vibration and frequency.
They used all the possible influencing parameters of rock
mass, explosive characteristics and blast design as an input
parameters in neural network which was trained by 150
dataset with 458 epochs, tested and verified by 20 new dataset.
They found that correlation coefficient determined by ANN
was 0.9994 and 0.9868 for peak particle velocity (PPV) and
frequency while correlation coefficient by statistical analysis
was 0.4971 and 0.0356.
Chakraborty et al. (2004) have underlined the effectiveness of
multilayer perceptron (MLP) networks for estimation of
blasting vibration and proposed a fusion network that
combines several MLPs and on-line feature selection
technique to obtain more reliable and accurate estimation over
the empirical predictors. Khandelwal and Singh (2007) have
used the three-layer feed-forward back-propagation neural
network to predict blast-induced ground vibration level at a
magnesite mine in tecto-dynamically vulnerable hilly terrain
in Himalayan region in India. They have compared measured
& predicted values of PPV using four widely used ground
vibration predictors namely USBM equation (1962),
Ambraseys–Hendron equation (1968), Langefors–Kihlstrom
equation (1958), and Indian Standard Predictor equation
(1973) and found a very poor correlation between measured
and predicted PPV values. Again, the same data sets were
used to predict PPV values by neural networks and found a
better correlation between measured and predicted values.
Mohamed (2009) has used three different models of ANN for
prediction the peak particle velocity (PPV) due to blast-
induced ground vibrations and observed that the ANN model
using a large number of inputs parameters gives better
prediction of PPV over the ANN models using single or two
inputs parameters. Also, the ANN model with two-input
parameters provides better results than the model with one
input parameter. That is to say, increase in the number of input
variables results in increasing the ability of ANN to learn and
to predict more precisely.
Singh and Singh (2005) have studied blast induced ground
vibration in Indian opencast mines predicted frequency of
ground vibrations. They compared measured values of
frequencies with that of predicted values using ANN and
multivariate regression analysis and found coefficient of
correlation0.905and 0.716 respectively. Singh (2004) have
attempted to predict the ground vibration and its frequency in
Indian coal measure rocks using artificial neural network and,
again they confirmed that the network provided better results
than a conventional multivariate regression method.
Peak particle velocity (PPV) is generally used to assess blast
vibration damage potential to structures lying on surface but
this parameter cannot explain fully the effect on structures
such as surface buildings situated far from the point of
blasting and which can be damaged even at very low PPVs.
Spectral analysis indicates that low frequency ground
vibrations (6–12 Hz) are more damaging than high frequencies
(22–80 Hz) (Ramchandar and Singh, 2001; Singh, Singh and
Singh, 1994). The longer wavelength and smaller amplitude
characteristic of these vibrations damage structures more
severely than higher amplitude, shorter wavelength vibrations
(Perrson, 1997). Yang and Feng (2004) have identified the
response of surface structures when subjected to blast-induced
ground vibration near opencast mines using a hybrid
evolutionary-neural approach, combining genetic algorithms
(GAs) and artificial neural networks and have found an
excellent performance of hybrid approach. Maity and Saha
(2004) have assessed damage in structures because of
variation of static parameters using neural network.
Using ANN, P-wave velocity and anisotropic property of
rocks were investigated by Singh et al. (2004a). Yong Lu
(2005) has studied the blast induced ground shocks using
artificial neural network for underground mines. Singh et al.
(2005) have studied the dynamic constants of rockmass with
the neural network and neurro-fuzzy system. Singh et al.
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(2004b) have predicted ground vibrations due to blasting with
lower error.
4. ANN IN AIR BLAST
Air blast is considered to be one of the most detrimental side
effects due to generation of noise. Blast induced Air Over
Pressure is the energy transmitted through the atmosphere
from the blast site in the form of a series of pressure waves.
Overpressure simply means the pressure over and above that
of atmospheric pressure being present and the term AOP is
used to describe the airwave generated by blasting (Oriard,
2002). AOP is generally measured in decibels (dB) using the
linear frequency weighting (L). When an explosive gets
detonated, transient air blast pressure waves are generated
(Wharton et al., 2000) and these transitory phenomena last for
a second or so. Unlike blast induced ground vibrations, air
blast impacts the house through the roof, walls and windows
of the structures and rarely can cause heavy and large scale
damage (Kuzu et al., 2009). Besides, it causes annoyance to
people living around mining areas and may result in
confrontation between the quarry management and those
affected (Konya and Walter, 2001; Pal Roy, 2005).
Sometimes, airblast is called as ‘‘blast noise”. But, the term
‘‘blast noise” is misleading because blast noise occurs at a
broad range of frequencies and the highest energy blast noise
usually occurs at frequencies below that of human hearing
(<20 Hz). Energy above 20 Hz is perceptible to the human ear
as sound, whilst that below 20 Hz is inaudible, however, it can
be sensed in the form of concussion. As its name implies, air
blast-overpressure is a measure of the transient pressure
changes. Air overpressure is formed either by the direct action
of the explosion products from an unconfined explosive in the
air or by the direction of a confining material subjected to
blast loading (Bhandari, 1997).
A generalized equation has been proposed by many
researchers to predict AOP, but due to its site specific nature,
it cannot be applicable universally. Khandelwal and Singh
(2005) have attempted to predict the air blast using a neural
network by incorporating the maximum charge per delay and
distance between blast face to monitoring point. They
compared the measured values of AOP to those of predicted
by ANN, generalised empirical predictor equations and
conventional relations and found that the mean absolute
percentage of error for ANN was 2.7437 whereas for
generalised equation and statistical analysis, it was 8.6957 and
6.9179 respectively.
Sawmliana et al. (2007) have investigated into the most
influential parameters affecting AOP such as maximum charge
weight per delay, depth of burial of charge, total charge fired
in a blast round and distance of measurement and predicted
AOP using artificial neural network. The predicted values of
AOP by ANN were compared with those predicted by
generalised equation incorporating maximum charge weight
per delay and distance of measurement. The results obtained
from neural network analysis showed that the depth of burial
of the charges and maximum charge weight per delay were
among the blast designed parameters that have most influence
on AOP. The average percentage of prediction error for ANN
and generalized equation were 2.05, 5.97 respectively and
correlation coefficient were 0.931 and 0.867 respectively.
Again it is conformed that the relationship between measured
and the predicted values of AOP was found to be more logical
in the case of ANN.
Remennikov and Mendis (2006) have underlined the
importance of neural network-based model in predicting
airblast load in complex environmental configurations such as
a dense urban environment or a blast environment behind a
blast barrier.
5. ANN IN FRAGMENTATION ANALYSIS
Back break can be defined as broken rocks beyond the limits
of the rear row of holes in a blast pattern (Jimeno, Jimeno, and
Carcedo, 1995). Backbreak is one of the destructive side
effects of the blasting operation. Reducing of this event is very
important for economic of a mining project, Monjezi et al.
(2013) It may cause difficulty in drilling in new benches,
having boulder in the next blast, rock fallings, instability of
final wall, improper fragmentation etc., and consequently
increase the total cost of a mining operation. Konya (2003)
believes that back break increases when burden and /or
stemming increase. Sari et al., 2013 derived that the stemming
length is the most important parameter in controlling
backbreak. Gate et al. (2005) have explained that the main
reason of back break is insufficient delay timing and /or
increasing number of rows in a blast round.
Monjezi et al. (2006a) have predicted the ratio of muck pile
before and after the blast, fly rock and total explosive used in
the blasting operation using artificial neural networks. These
applications demonstrate that neural network models are
efficient in solving problems when many parameters influence
the process, and when the process is not fully understood.
Monjezi et al. (2008) have used the artificial neural network
technique to determine the near-optimum blasting pattern so
that back break can be minimized and found that the ratio of
stemming to burden, the ratio of last row charge to total
charge, powder factor, total charge per delay and the number
of rows in a blasting round are the major causes of the back
break problems. Li et al. (2006) have proposed a coupling
system of engineering database and three-layered back
propogation neural networks for pre-splitting blasting design.
Monjezi et al. (2006b) have estimated burden in tunnel
blasting with the use of a multi-layer back propagation neural
networks which is used to train and test the developed model
to enable prediction of burden. Monjezi et al. (2010) has
predicted rock fragmentation in Sarcheshmeh copper mine by
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developing a model using artificial neural network. Zhu and
Wu (2005) have compared the forecasting of blasting
fragmentation and by neural networks and correlation. They
found that neural network improved the stability of the model.
Karami et al. (2006) have adopted artificial neural networks
(ANN) technique in predicting the back break in Gole-Gohar
iron ore mine, Kerman, Iran and confirmed the high capability
of the neural network in blast designs.
Tawadrou and Katsabani (2005) have underlined the
importance of artificial neural networks in the prediction of
the geometry of surface blast patterns in limestone quarries.
They used 11 input parameters which affect the blast design
such as formation dip, blasthole diameter, blasthole
inclination, bench height, initiation system, specific gravity of
the rock, compressive and tensile strength, Young's modulus,
specific energy of the explosive and the average resulting
fragmentation size and predicted burden and spacing of the
blast. The built model was used to conduct parametric studies
to show the effect of blasthole diameter and bench height on
geometry of blast pattern.
The muck-pile fragmentation distribution based on blast
patterns designed using radial basis function (RBF) of neural
network has been predicted by Moghadam et al. (2006). They
used blast-hole diameter, number of hole, burden, spacing,
depth of hole, stemming, number of rows, velocity of
detonation, charge per delay, powder factor, blastability index,
water level as Input parameters and the output presented in
terms of equivalent screen size that passes 80% of the blasted
materials, equivalent screen size that passes 63.2% of the
blasted materials, and index of uniformity.
Bahrami et al. ( 2011) had developed a model to predict rock
fragmentation due to blasting by implementing artificial neural
network (ANN) method. In the development of proposed
model eight parameters such as hole diameter, burden, powder
factor, blastability index etc., were incorporated. Training of
model was performed by back propagation algorithem using
220 datasets. A four layer ANN was taken as optimum with
architecture 10-9-7-1. Sensitivity analysis revealed that the
most effective parameters on rock fragmentation are
blastability index, charge per delay , burden , SMR and
powder factor.
Using ANN, Jong and Lee (2004) explained influence of
geological conditions on the powder factor for tunnel blasting.
Leu et al. (1998) analyzed in-depth the influence of powder
factors for tunnel blasting. Jong and Lee (2002) predicted
powder factor and peak particle velocity in tunnel blasting.
Shan et al. (2007) demonstrated tunnel circulation in terms of
one-kilogram explosive and one-meter length of blasthole.
6. ANN IN FLY ROCK HAZARDS
Flyrock is defined as the rock propelled beyond the blast area
by the force of an explosion (IME, 1997). When these rock
fragments get thrown beyond the protected area, they result in
human injuries, fatalities and structure damages. Flyrock
arising from blasting operations is one of the crucial and
complex problems in mining industry and its prediction plays
an important role in the minimization of related
hazards.(Ebrahim Ghaesemi et al. 2012 ).The lack of blast
area security and flyrock accounted for 68.2% accidents in
USA (Kecojevic and Radomsky, 2005). An analysis of
blasting accidents in Indian mines indicated that more than
40% of fatal and 20% of serious accidents were caused by
flyrock (Bhandari, 1997). The major causes of flyrock in
opencast mines are reduced burden, inadequate stemming
length, faulty drilling, backbreak, and loose rock on top of the
bench due to poor previous blast, very high explosive
concentration, inappropriate delay timing, and their sequence,
inaccuracy of delays unfavorable geological conditions such
as open joints, weak seams, cavities etc. (Adhikari, 1999;
Fletcher and D’Andrea, 1986; Persson, Holmberg, and Lee,
1984; Rehak et al., 2001; Shea and Clark, 1998; Siskind and
Kopp, 1995; Workman and Calder, 1994). Any imbalance
between the distribution of the explosive energy,
geomechanical strength of the surrounding rock mass, and
confinement creates a potential hazardous condition by
channeling the energy through the path of least resistance.
Such imbalance can propel flyrock beyond the protected blast
area and create a potential for serious injuries and fatalities
(Bajpayee et al., 2004). The results show that the powder
factor and charge per delay are the most effective parameters
on flyrock distance.
Application of neural networks in predicting and controlling
flyrock hazards in opencast mines has not been reported so far.
However, an attempt has been made by Monjezi et al. (2007)
to control fly rock in blasting operations using TOPSIS
method. In recent years, several researches have been done to
predict flyrock and ground vibration by means of conventional
backpropagation (BP) artificial neural network (ANN),
Armaghmi et al., (2013).
Monzei et al. (2013) applied Artificial nueral network (ANN)
to predict flyrock in blasting operation of sungun copper mine,
Iran. Number of ANN models was tried using various
permutation and combinations, and it was observed that a
model trained with back-propagation algorithm having 9-5-2-1
architecture is the best optimum. Flyrock were also computed
from various available empirical models suggested by
Lundborg. Statistical modeling has also been done to compare
the prediction capability of ANN over other methods.
Comparison of the results showed absolute superiority of the
ANN modeling over the empirical as well as statistical
models.
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7. CONCLUSIONS
A neural network has been found to be a good approach for
the problems of rock fragmentation by blasting and it’s
associated environmental hazards such as fly rock, ground
vibrations, air blast, dust etc. in which the mechanism is very
complex, many factors influence the process and the results.
Many researchers have found the accuracy of prediction,
degree of robustness or fault tolerance in ANN better than
empirical and other techniques because of ability of pattern
recognition and continuous learning .More over, the neural
network predictor takes much less time to interpret new data
than existing techniques once it is properly trained.
The ability of neural networks to generalize, i.e., to produce
solutions for previously unseen input data is the very basis of
its predictability. Predictability of a neural network increases
with the increasing number of input variables as it enhances
the ability of ANN to learn and to get trained. Feed forward
back-propagation algorithm has been widely used, because of
its robustness in predictive problems especially in rock science
and engineering.
It can be expected that with the enhancement of the training
database, in terms of size as well as the diversity of the
variable values, more robust neural networks can be
constructed for the better representation of the physical system
for complete solution of blast related hazardous effects which
will later on help to propose more scientific guidelines to
smoothen the blasting operations in particular as well as to
sustain and protect the geo-environment at large.
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