This document summarizes a study on using piezoelectric sensors for vibration analysis and damage detection in composite plates. Piezoelectric wafer active sensors were attached to composite plate specimens containing embedded Teflon sheets to simulate damage. An experimental setup was used to generate actuation signals and record vibration responses from the sensors. Half-sine and rectangular impulse signals were tested. Frequency analysis of the monitored signals using wavelet transforms was performed to identify the presence and extent of damage. The study demonstrated the effectiveness of this active monitoring method for damage detection in composite structures.
Contact Pressure Validation of Steam Turbine Casing for Static Loading ConditionIJMER
International Journal of Modern Engineering Research (IJMER) is Peer reviewed, online Journal. It serves as an international archival forum of scholarly research related to engineering and science education.
IRJET - Thermo- Structural Analysis of Runner of Exhaust ManifoldIRJET Journal
This document summarizes a thermo-structural analysis of an exhaust manifold runner conducted using finite element analysis software. The analysis compared the behavior of grey cast iron and stainless steel materials. Boundary conditions like exhaust gas temperature and pressure were applied. Stresses and temperatures were highest at joints and edges. Stainless steel had lower maximum stresses than cast iron, but higher minimum temperatures. Stainless steel stresses were below its yield strength. This analysis can help evaluate materials for withstanding the complex thermal and mechanical loads on exhaust manifolds.
This document analyzes and models single point cutting of an HSS material tool using ANSYS to optimize transient vibration parameters like temperature and pressure. It describes the tool geometry and material properties and performs a transient analysis in ANSYS applying different pressure loads over time. The results show maximum deformations, strains, and stresses remain below yield criteria, with safety factors all above 10.
IRJET- Experimental Analysis for Thermal Performance of Muffler Guard Hero Xt...IRJET Journal
This document summarizes an experimental analysis of the thermal performance of a muffler guard for a Hero XTREME 200R motorcycle. The study designs and models a basic and modified muffler guard using CAD software. Temperature measurements are taken at points on the basic and modified guards under idling and running engine conditions using an infrared thermometer. Graphs of the temperature data show the modified guard with vertical and horizontal holes cut into the big end reduced temperatures compared to the basic guard design. The modifications aim to improve heat transfer and lower muffler guard temperatures for enhanced performance and component life.
Computational Fluid Dynamic Analysis and Structural Analysis of Ribbed Panel ...IRJET Journal
This document summarizes a computational fluid dynamics (CFD) analysis and structural analysis of a ribbed panel structure using finite element analysis (FEA). The analysis involved: 1) CFD to determine maximum pressure and velocity, 2) calculations to determine required plate thickness, 3) geometric modeling and meshing of the structure, and 4) static and transient structural analyses. The results showed the structure was safe under the applied pressure and impact loads with stresses and deflections within allowable limits, demonstrating the design was structurally sound. Section optimization also showed the same structural rigidity could be achieved with less weight.
IRJET- Fatigue Life Estimation of Small Gas Turbine BliskIRJET Journal
The document summarizes a study estimating the fatigue life of a small gas turbine (SGT) blisk using finite element analysis. A periodic sector of the SGT blisk is modeled and analyzed under varying operational loads over time, including thermal, pressure, and centrifugal loads. Stress and strain results indicate plastic deformation occurs. Fatigue life is then estimated using the strain-based Smith Watson Topper approach. The analysis predicts a fatigue life of 759 cycles, while theoretical calculations estimate a longer life of 1793 cycles due to considering average stresses over the cycle.
Study on Influence of Inverted V and W-Frame Column Support on Dynamic Behavi...IRJET Journal
This document presents a study on the influence of inverted V-frame and W-frame column supports on the dynamic behavior of a 124.8m hyperbolic cooling tower under seismic loading. Finite element models of the cooling tower were created in SAP2000 with varying shell thicknesses and the two column support configurations. Results for maximum stress, deflection, and vibration frequencies were obtained and compared for different seismic zones. The analysis showed that maximum stress decreased more with increasing thickness for the W-frame support compared to the inverted V-frame. For the minimum 200mm thickness, stresses and deflections were higher for the inverted V-frame. The W-frame column support resulted in lower stresses and was determined to be the optimum configuration.
Contact Pressure Validation of Steam Turbine Casing for Static Loading ConditionIJMER
International Journal of Modern Engineering Research (IJMER) is Peer reviewed, online Journal. It serves as an international archival forum of scholarly research related to engineering and science education.
IRJET - Thermo- Structural Analysis of Runner of Exhaust ManifoldIRJET Journal
This document summarizes a thermo-structural analysis of an exhaust manifold runner conducted using finite element analysis software. The analysis compared the behavior of grey cast iron and stainless steel materials. Boundary conditions like exhaust gas temperature and pressure were applied. Stresses and temperatures were highest at joints and edges. Stainless steel had lower maximum stresses than cast iron, but higher minimum temperatures. Stainless steel stresses were below its yield strength. This analysis can help evaluate materials for withstanding the complex thermal and mechanical loads on exhaust manifolds.
This document analyzes and models single point cutting of an HSS material tool using ANSYS to optimize transient vibration parameters like temperature and pressure. It describes the tool geometry and material properties and performs a transient analysis in ANSYS applying different pressure loads over time. The results show maximum deformations, strains, and stresses remain below yield criteria, with safety factors all above 10.
IRJET- Experimental Analysis for Thermal Performance of Muffler Guard Hero Xt...IRJET Journal
This document summarizes an experimental analysis of the thermal performance of a muffler guard for a Hero XTREME 200R motorcycle. The study designs and models a basic and modified muffler guard using CAD software. Temperature measurements are taken at points on the basic and modified guards under idling and running engine conditions using an infrared thermometer. Graphs of the temperature data show the modified guard with vertical and horizontal holes cut into the big end reduced temperatures compared to the basic guard design. The modifications aim to improve heat transfer and lower muffler guard temperatures for enhanced performance and component life.
Computational Fluid Dynamic Analysis and Structural Analysis of Ribbed Panel ...IRJET Journal
This document summarizes a computational fluid dynamics (CFD) analysis and structural analysis of a ribbed panel structure using finite element analysis (FEA). The analysis involved: 1) CFD to determine maximum pressure and velocity, 2) calculations to determine required plate thickness, 3) geometric modeling and meshing of the structure, and 4) static and transient structural analyses. The results showed the structure was safe under the applied pressure and impact loads with stresses and deflections within allowable limits, demonstrating the design was structurally sound. Section optimization also showed the same structural rigidity could be achieved with less weight.
IRJET- Fatigue Life Estimation of Small Gas Turbine BliskIRJET Journal
The document summarizes a study estimating the fatigue life of a small gas turbine (SGT) blisk using finite element analysis. A periodic sector of the SGT blisk is modeled and analyzed under varying operational loads over time, including thermal, pressure, and centrifugal loads. Stress and strain results indicate plastic deformation occurs. Fatigue life is then estimated using the strain-based Smith Watson Topper approach. The analysis predicts a fatigue life of 759 cycles, while theoretical calculations estimate a longer life of 1793 cycles due to considering average stresses over the cycle.
Study on Influence of Inverted V and W-Frame Column Support on Dynamic Behavi...IRJET Journal
This document presents a study on the influence of inverted V-frame and W-frame column supports on the dynamic behavior of a 124.8m hyperbolic cooling tower under seismic loading. Finite element models of the cooling tower were created in SAP2000 with varying shell thicknesses and the two column support configurations. Results for maximum stress, deflection, and vibration frequencies were obtained and compared for different seismic zones. The analysis showed that maximum stress decreased more with increasing thickness for the W-frame support compared to the inverted V-frame. For the minimum 200mm thickness, stresses and deflections were higher for the inverted V-frame. The W-frame column support resulted in lower stresses and was determined to be the optimum configuration.
Parametric study of_centrifugal_fan_performance_exVnTunNguyn13
This document describes a study of centrifugal fan performance through experiments and numerical simulation. An experimental setup was developed to test fan prototypes and measure flow rate and power consumption. A computational fluid dynamics (CFD) model was also developed and validated against experimental results. Parametric studies were conducted to quantify the effects of number of blades, outlet angle, and diameter ratio on fan performance metrics like power coefficient, flow coefficient, efficiency, and pressure coefficient. The results provide insight on how fan performance is affected by geometric parameters and operating conditions.
IRJET- Analysis of Process Parameters of Plasma ARC Cutting using Design of E...IRJET Journal
This document discusses the analysis of process parameters for plasma arc cutting using design of experiments. The study aims to determine the optimum parameter settings to achieve maximum material removal rate (MRR) and minimum surface roughness (Ra). Sixteen experiments were conducted using a Taguchi orthogonal array with four parameters (gas pressure, current, cutting speed, arc gap) each at two levels. Stainless steel samples were cut and the MRR and Ra values measured. ANOVA and other analyses were used to evaluate the effect of each parameter and identify the optimal settings for MRR and Ra.
Design and Analysis of Compressor Impeller using AL25ZN MaterialIRJET Journal
1) The document describes the design and analysis of a compressor impeller using a new Al25Zn aluminium alloy material.
2) An impeller was modeled and its stress and deformation properties were analyzed using finite element analysis at different rotational speeds.
3) The Al25Zn material showed improved mechanical properties like higher hardness and yield strength compared to other aluminium alloys. Stress values from FEA using this material were lower than those using steel.
Contact Pressure Analysis of Steam Turbine CasingIRJET Journal
This document analyzes the contact pressure of a steam turbine casing through finite element analysis. It summarizes previous research on modeling steam turbine casings and assessing fatigue life. A 3D model of a simple steam turbine casing is created in ABAQUS to simulate the casing under a pressure of 5 MPa. The analysis finds that the maximum von-Mises stress of 325.87 MPa is below the yield strength and the contact pressure of 67.133 MPa is greater than the required 15 MPa, indicating the design is safe and leak-proof under static loading conditions. Previous studies on modeling complex casings and estimating low cycle fatigue life are also reviewed.
Experimental and numerical study of defects in pressuresed cylindrical shells...eSAT Journals
Abstract
In order to conduct a comprehensive study on the harmfulness of defects in the pressure vessels, and in order to propose simple rules to characterize the harmfulness of existing defects in pressurized installations. An experimental study based on the monitoring of deformations by strain gauges in the vicinity of defects. In parallel, during pressure testing, the evolution of defects is detected and followed by the acoustic emission method. The specific instrumentation has been designed and implemented. Mini-structures ( models) have therefore been carried out with positional defects and different orientation. These experimental results validated by a numerical model of finite elements.
Keywords: Pressure vessels, Cylindrical shells, Defect harmfulness, Circumferential and longitudinal Crack, Strain gauges, Acoustic emission, Stress Intensity Factor.
IRJET- Enhancement of Heat Transfer Effectiveness of Plate-Pin Fin Heat S...IRJET Journal
This document summarizes a study on enhancing the heat transfer effectiveness of plate-pin fin heat sinks. Nineteen different plate-pin fin heat sink models were numerically simulated and analyzed based on factors like heat transfer coefficient, Nusselt number, pressure drop, base plate temperature, fan power, and thermal resistance. The results showed that a plate-pin fin heat sink model with a plate cut thickness of D/3, where D is the pin diameter, performed the best with higher heat transfer coefficient, Nusselt number, and lower base plate temperature, pressure drop, fan power, and thermal resistance compared to other models. A heat sink model with pin fins containing two holes also showed improved performance over solid pin fins.
This document summarizes an investigation into the effects of machining parameters on the surface finish and material removal rate when machining an aluminum-copper alloy (AL6351) using wire electric discharge machining (WEDM). The study uses Taguchi's design of experiments method to analyze the effects of pulse on-time, pulse off-time, and peak current. Sixteen experiments were conducted and the material removal rate and surface roughness were measured. The results were analyzed using ANOVA to determine the most significant parameters for improving surface finish and removal rate. The goal of the research was to optimize the WEDM process for machining AL6351 alloy.
IRJET- Review on An Innovative Approach to Study the Thermal Performance of M...IRJET Journal
This document reviews thermal performance analysis of a muffler heat shield for the Hero Xtreme 200R motorcycle. It discusses how heat shields protect components from high exhaust temperatures through conduction, convection, and radiation. The authors conducted computational fluid dynamics (CFD) analysis using ANSYS to optimize the design of the muffler heat shield. Their results showed the optimized design could reduce pressure drop in the exhaust system by up to 13% through minor design changes to the perforated pipe. The document also provides background on heat shield applications in automotive exhaust systems and prior studies analyzing thermal behavior and heat transfer in exhaust components.
THERMAL ANALYSIS OF AIR FLOW IN A CPU CABINET WITH MOTHERBOARD AND HARD DISK ...IAEME Publication
The present work investigates the numerical simulation of thermal analysis of mixed convection air flow in a CPU Cabinet. The simulation is focused on the non-uniformly heated mother board temperature distribution. In the
present work three cases have been studied, 1) Placing the CPU in vertical position, 2) Placing the CPU in horizontal
position and 3) Providing exhaust fan on top. The work also includes studies of effectiveness of different inlets provided.
The temperature distribution of the components and streamlines were investigated in order to get a clear picture of which case is more effective for cooling of the mother board
IRJET- Effect of Pin Fin Geometry on Performance of Heat SinkIRJET Journal
This document discusses the effect of pin fin geometry on the performance of a heat sink. It begins with an abstract that outlines the goals of analyzing pin fin geometry using CATIA and ANSYS software to increase heat transfer rates. It then provides background on heat transfer and the three modes of heat transfer - conduction, convection and radiation. The objectives, problem statement and methodology are described. The design of the experimental setup is discussed along with future work considering additional factors like radiation and different materials.
Thickness optimization of thick walled circular cylinder by heat treatmentIRJET Journal
1. The document analyzes the thickness optimization of thick walled circular cylinders through heat treatment. It determines the maximum internal pressure capacities of untreated and heat treated cylinders using analytical calculations and finite element analysis in ANSYS.
2. The untreated cylinder can sustain a maximum internal pressure of 80MPa. The heat treated cylinder's maximum pressure capacity is improved to 110MPa. Further reducing the heat treated cylinder's thickness by 5mm reduces its maximum pressure to 90MPa.
3. Modal analysis of the reduced thickness heat treated cylinder shows natural frequencies from analytical calculations agree with ANSYS results within 3%. Its working frequencies from 21.5-45.7Hz avoid resonance conditions.
Comparison of design and analysis of tube sheet thickness by using uhx code 2IAEME Publication
This document compares the design and analysis of tube sheet thickness using two different standards: the UHX code of ASME and the TEMA standard. It analyzes a fixed tube sheet heat exchanger using both codes and finds the TEMA standard calculates a thicker tube sheet thickness of 75mm compared to 60mm from the UHX code. Finite element analysis is also used and found to produce results close to the exact solution, providing an optimization tool for the tube sheet thickness design. In summary, the document compares tube sheet thickness calculations and stresses using the ASME and TEMA codes and supports the use of finite element analysis to optimize the design.
Experimental investigation of machining parameters of electricIAEME Publication
This document summarizes an experimental investigation of machining parameters for electrical discharge machining (EDM) of tungsten carbide (K-10). Experiments were conducted using different levels of pulse on time, pulse off time, current, and voltage. Material removal rate (MRR) was measured for each experiment. Analysis of variance (ANOVA) found that voltage had the highest contribution to MRR, followed by current. The optimal parameters for maximum MRR were found to be: current of 20 amps, pulse on time of 100 microseconds, pulse off time of 6 microseconds, and voltage of 50 volts.
This document summarizes a study on the non-linear analysis of a 115m tall reinforced concrete chimney in Turkey that collapsed during an earthquake. The study aims to determine the chimney's displacement and ductility demands through non-linear dynamic analysis using SAP 2000 software. A 3D model of the chimney was created in SAP 2000 based on its design specifications. Time history analysis was performed using ground motion records from the 1999 Kocaeli earthquake. Additionally, 3D pushover analysis was conducted to compare results with the dynamic analysis and evaluate the chimney's inelastic behavior under increasing lateral loads.
Modelling and analysis of single circular grooves made on dry friction clutcheseSAT Journals
This document analyzes the modeling and simulation of single circular grooves made on dry friction clutches. It describes the modeling of a clutch plate with a single circular groove in CATIA V5 and analyzing it in ANSYS. The analysis shows the single circular groove clutch plate has a maximum deformation of 1.9013e-5 m, Von-Mises stress of 1.3378e7 Pa, heat flux of 14503 W/m2, and can transmit a torque of 62.131 Nm, which is 10.43% more than other groove patterns. The document concludes the single circular groove pattern provides better torque transmission capacity compared to other patterns.
Dynamic Response Analysis of Compressor Mounting Bracket of an Automobile Veh...IRJET Journal
This document summarizes a research paper that analyzes the dynamic response of an aluminum compressor mounting bracket for an automobile air conditioning system. The analysis is performed using finite element analysis software ABAQUS. The summary is:
1. A 3D CAD model of the bracket is created in CATIA and then meshed. Normal modes and frequency response analyses are conducted in ABAQUS to determine the natural frequencies and stresses on the bracket.
2. The normal modes analysis finds the first three natural frequencies of the aluminum bracket. The frequency response analysis applies forces in three directions to determine stresses.
3. The results show that the stresses induced on the bracket are below the yield strength of the aluminum material, indicating that
Failure analysis of cylinder head valve spring in locomotivesIRJET Journal
This document summarizes a study analyzing the failure of cylinder head valve springs in locomotives. The researchers modeled a coil spring using PRO-E software and analyzed it using ANSYS to simulate different materials, loads, and conditions. They found that heat treatment and proper material selection are important to prevent spring failure from high cycle fatigue. Static structural analysis was performed on models made of chromium vanadium steel and low-carbon steel to determine stresses and optimize material choice. The analysis aims to understand failure mechanisms and improve spring design and quality to avoid premature failures in locomotive engines.
IRJET- Cold Formed Steel Lipped Zed Section with and without Web Holes –Web C...IRJET Journal
1. The study investigated the web crippling behavior of cold-formed steel lipped zed sections with and without circular web holes through theoretical analysis, experimental testing, and finite element analysis using ANSYS.
2. Theoretical analysis was conducted based on IS 801-1975 and BS 5950-1998 design codes, experimental testing involved flexural testing of sections under uniformly distributed loading with and without web holes, and finite element models were developed to analyze web crippling behavior.
3. The results found that the ratio of the web hole depth to the web depth and the distance from the edge of the bearing divided by the flat depth of the web influenced web crippling. Theoretical values were higher than
Parametric Optimization of Electrochemical Machining Using Signal-To-Noise (S...IJMER
International Journal of Modern Engineering Research (IJMER) is Peer reviewed, online Journal. It serves as an international archival forum of scholarly research related to engineering and science education.
International Journal of Modern Engineering Research (IJMER) covers all the fields of engineering and science: Electrical Engineering, Mechanical Engineering, Civil Engineering, Chemical Engineering, Computer Engineering, Agricultural Engineering, Aerospace Engineering, Thermodynamics, Structural Engineering, Control Engineering, Robotics, Mechatronics, Fluid Mechanics, Nanotechnology, Simulators, Web-based Learning, Remote Laboratories, Engineering Design Methods, Education Research, Students' Satisfaction and Motivation, Global Projects, and Assessment…. And many more.
This project involved modeling and analyzing a single dry clutch plate assembly. The objectives were to model the clutch plate, perform a structural analysis of the contact surfaces between the flywheel and clutch plate, and conduct a modal analysis of the clutch plate. The model was assembled and structural analysis was performed to calculate deformation, stresses, friction, and pressure on the contact region under various loads. Mesh refinement studies were also conducted. The results showed the maximum stresses were within safe limits for the given loads and materials.
Thick PZT Films Used to Develop Efficient Piezoelectric Energy Harvesters by ...Teresa Porter
Thick PZT films were evaluated for use in piezoelectric energy harvesters. 5-6 micron thick PZT layers were deposited on nickel foil substrates using RF magnetron sputtering. Analysis showed the thick PZT films had strong {100} orientation without pyrochlore phases or microcracking. Thicker PZT films can increase energy harvester power output by providing more piezoelectric material volume, though they risk cracking under stress. This study evaluated thick films to determine their viability for energy harvesting applications.
Active vibration control of smart piezo cantilever beam using pid controllereSAT Journals
Abstract In this paper the modelling and Design of a Beam on which two Piezoelectric Ceramic Lead Zirconate Titanate ( PZT) patches are bonded on the top and bottom surface as Sensor/Actuator collocated pair is presented. The work considers the Active Vibration Control (AVC) using Proportional Integral Derivative (PID) Controller. The beam is assumed as Euler-Bernoulli beam. The two PZT patches are also treated as Euler-Bernoulli beam elements. The contribution of mass and stiffness of two PZT patches in the design of entire structure are also considered. The beam is modelled using three Finite Elements. The patches can be bonded near the fixed end, at middle or near the free end of the beam as collocated pair. The design uses first two dominant vibratory modes. The effect of PZT sensor/actuator pair is investigated at different locations of beam in vibration control. It can be concluded from the work that best result is obtained when the PZT patches are bonded near the fixed end. Keywords: Smart Beam, Active Vibration control, Piezoelectric, PID Controller, Finite Element
Parametric study of_centrifugal_fan_performance_exVnTunNguyn13
This document describes a study of centrifugal fan performance through experiments and numerical simulation. An experimental setup was developed to test fan prototypes and measure flow rate and power consumption. A computational fluid dynamics (CFD) model was also developed and validated against experimental results. Parametric studies were conducted to quantify the effects of number of blades, outlet angle, and diameter ratio on fan performance metrics like power coefficient, flow coefficient, efficiency, and pressure coefficient. The results provide insight on how fan performance is affected by geometric parameters and operating conditions.
IRJET- Analysis of Process Parameters of Plasma ARC Cutting using Design of E...IRJET Journal
This document discusses the analysis of process parameters for plasma arc cutting using design of experiments. The study aims to determine the optimum parameter settings to achieve maximum material removal rate (MRR) and minimum surface roughness (Ra). Sixteen experiments were conducted using a Taguchi orthogonal array with four parameters (gas pressure, current, cutting speed, arc gap) each at two levels. Stainless steel samples were cut and the MRR and Ra values measured. ANOVA and other analyses were used to evaluate the effect of each parameter and identify the optimal settings for MRR and Ra.
Design and Analysis of Compressor Impeller using AL25ZN MaterialIRJET Journal
1) The document describes the design and analysis of a compressor impeller using a new Al25Zn aluminium alloy material.
2) An impeller was modeled and its stress and deformation properties were analyzed using finite element analysis at different rotational speeds.
3) The Al25Zn material showed improved mechanical properties like higher hardness and yield strength compared to other aluminium alloys. Stress values from FEA using this material were lower than those using steel.
Contact Pressure Analysis of Steam Turbine CasingIRJET Journal
This document analyzes the contact pressure of a steam turbine casing through finite element analysis. It summarizes previous research on modeling steam turbine casings and assessing fatigue life. A 3D model of a simple steam turbine casing is created in ABAQUS to simulate the casing under a pressure of 5 MPa. The analysis finds that the maximum von-Mises stress of 325.87 MPa is below the yield strength and the contact pressure of 67.133 MPa is greater than the required 15 MPa, indicating the design is safe and leak-proof under static loading conditions. Previous studies on modeling complex casings and estimating low cycle fatigue life are also reviewed.
Experimental and numerical study of defects in pressuresed cylindrical shells...eSAT Journals
Abstract
In order to conduct a comprehensive study on the harmfulness of defects in the pressure vessels, and in order to propose simple rules to characterize the harmfulness of existing defects in pressurized installations. An experimental study based on the monitoring of deformations by strain gauges in the vicinity of defects. In parallel, during pressure testing, the evolution of defects is detected and followed by the acoustic emission method. The specific instrumentation has been designed and implemented. Mini-structures ( models) have therefore been carried out with positional defects and different orientation. These experimental results validated by a numerical model of finite elements.
Keywords: Pressure vessels, Cylindrical shells, Defect harmfulness, Circumferential and longitudinal Crack, Strain gauges, Acoustic emission, Stress Intensity Factor.
IRJET- Enhancement of Heat Transfer Effectiveness of Plate-Pin Fin Heat S...IRJET Journal
This document summarizes a study on enhancing the heat transfer effectiveness of plate-pin fin heat sinks. Nineteen different plate-pin fin heat sink models were numerically simulated and analyzed based on factors like heat transfer coefficient, Nusselt number, pressure drop, base plate temperature, fan power, and thermal resistance. The results showed that a plate-pin fin heat sink model with a plate cut thickness of D/3, where D is the pin diameter, performed the best with higher heat transfer coefficient, Nusselt number, and lower base plate temperature, pressure drop, fan power, and thermal resistance compared to other models. A heat sink model with pin fins containing two holes also showed improved performance over solid pin fins.
This document summarizes an investigation into the effects of machining parameters on the surface finish and material removal rate when machining an aluminum-copper alloy (AL6351) using wire electric discharge machining (WEDM). The study uses Taguchi's design of experiments method to analyze the effects of pulse on-time, pulse off-time, and peak current. Sixteen experiments were conducted and the material removal rate and surface roughness were measured. The results were analyzed using ANOVA to determine the most significant parameters for improving surface finish and removal rate. The goal of the research was to optimize the WEDM process for machining AL6351 alloy.
IRJET- Review on An Innovative Approach to Study the Thermal Performance of M...IRJET Journal
This document reviews thermal performance analysis of a muffler heat shield for the Hero Xtreme 200R motorcycle. It discusses how heat shields protect components from high exhaust temperatures through conduction, convection, and radiation. The authors conducted computational fluid dynamics (CFD) analysis using ANSYS to optimize the design of the muffler heat shield. Their results showed the optimized design could reduce pressure drop in the exhaust system by up to 13% through minor design changes to the perforated pipe. The document also provides background on heat shield applications in automotive exhaust systems and prior studies analyzing thermal behavior and heat transfer in exhaust components.
THERMAL ANALYSIS OF AIR FLOW IN A CPU CABINET WITH MOTHERBOARD AND HARD DISK ...IAEME Publication
The present work investigates the numerical simulation of thermal analysis of mixed convection air flow in a CPU Cabinet. The simulation is focused on the non-uniformly heated mother board temperature distribution. In the
present work three cases have been studied, 1) Placing the CPU in vertical position, 2) Placing the CPU in horizontal
position and 3) Providing exhaust fan on top. The work also includes studies of effectiveness of different inlets provided.
The temperature distribution of the components and streamlines were investigated in order to get a clear picture of which case is more effective for cooling of the mother board
IRJET- Effect of Pin Fin Geometry on Performance of Heat SinkIRJET Journal
This document discusses the effect of pin fin geometry on the performance of a heat sink. It begins with an abstract that outlines the goals of analyzing pin fin geometry using CATIA and ANSYS software to increase heat transfer rates. It then provides background on heat transfer and the three modes of heat transfer - conduction, convection and radiation. The objectives, problem statement and methodology are described. The design of the experimental setup is discussed along with future work considering additional factors like radiation and different materials.
Thickness optimization of thick walled circular cylinder by heat treatmentIRJET Journal
1. The document analyzes the thickness optimization of thick walled circular cylinders through heat treatment. It determines the maximum internal pressure capacities of untreated and heat treated cylinders using analytical calculations and finite element analysis in ANSYS.
2. The untreated cylinder can sustain a maximum internal pressure of 80MPa. The heat treated cylinder's maximum pressure capacity is improved to 110MPa. Further reducing the heat treated cylinder's thickness by 5mm reduces its maximum pressure to 90MPa.
3. Modal analysis of the reduced thickness heat treated cylinder shows natural frequencies from analytical calculations agree with ANSYS results within 3%. Its working frequencies from 21.5-45.7Hz avoid resonance conditions.
Comparison of design and analysis of tube sheet thickness by using uhx code 2IAEME Publication
This document compares the design and analysis of tube sheet thickness using two different standards: the UHX code of ASME and the TEMA standard. It analyzes a fixed tube sheet heat exchanger using both codes and finds the TEMA standard calculates a thicker tube sheet thickness of 75mm compared to 60mm from the UHX code. Finite element analysis is also used and found to produce results close to the exact solution, providing an optimization tool for the tube sheet thickness design. In summary, the document compares tube sheet thickness calculations and stresses using the ASME and TEMA codes and supports the use of finite element analysis to optimize the design.
Experimental investigation of machining parameters of electricIAEME Publication
This document summarizes an experimental investigation of machining parameters for electrical discharge machining (EDM) of tungsten carbide (K-10). Experiments were conducted using different levels of pulse on time, pulse off time, current, and voltage. Material removal rate (MRR) was measured for each experiment. Analysis of variance (ANOVA) found that voltage had the highest contribution to MRR, followed by current. The optimal parameters for maximum MRR were found to be: current of 20 amps, pulse on time of 100 microseconds, pulse off time of 6 microseconds, and voltage of 50 volts.
This document summarizes a study on the non-linear analysis of a 115m tall reinforced concrete chimney in Turkey that collapsed during an earthquake. The study aims to determine the chimney's displacement and ductility demands through non-linear dynamic analysis using SAP 2000 software. A 3D model of the chimney was created in SAP 2000 based on its design specifications. Time history analysis was performed using ground motion records from the 1999 Kocaeli earthquake. Additionally, 3D pushover analysis was conducted to compare results with the dynamic analysis and evaluate the chimney's inelastic behavior under increasing lateral loads.
Modelling and analysis of single circular grooves made on dry friction clutcheseSAT Journals
This document analyzes the modeling and simulation of single circular grooves made on dry friction clutches. It describes the modeling of a clutch plate with a single circular groove in CATIA V5 and analyzing it in ANSYS. The analysis shows the single circular groove clutch plate has a maximum deformation of 1.9013e-5 m, Von-Mises stress of 1.3378e7 Pa, heat flux of 14503 W/m2, and can transmit a torque of 62.131 Nm, which is 10.43% more than other groove patterns. The document concludes the single circular groove pattern provides better torque transmission capacity compared to other patterns.
Dynamic Response Analysis of Compressor Mounting Bracket of an Automobile Veh...IRJET Journal
This document summarizes a research paper that analyzes the dynamic response of an aluminum compressor mounting bracket for an automobile air conditioning system. The analysis is performed using finite element analysis software ABAQUS. The summary is:
1. A 3D CAD model of the bracket is created in CATIA and then meshed. Normal modes and frequency response analyses are conducted in ABAQUS to determine the natural frequencies and stresses on the bracket.
2. The normal modes analysis finds the first three natural frequencies of the aluminum bracket. The frequency response analysis applies forces in three directions to determine stresses.
3. The results show that the stresses induced on the bracket are below the yield strength of the aluminum material, indicating that
Failure analysis of cylinder head valve spring in locomotivesIRJET Journal
This document summarizes a study analyzing the failure of cylinder head valve springs in locomotives. The researchers modeled a coil spring using PRO-E software and analyzed it using ANSYS to simulate different materials, loads, and conditions. They found that heat treatment and proper material selection are important to prevent spring failure from high cycle fatigue. Static structural analysis was performed on models made of chromium vanadium steel and low-carbon steel to determine stresses and optimize material choice. The analysis aims to understand failure mechanisms and improve spring design and quality to avoid premature failures in locomotive engines.
IRJET- Cold Formed Steel Lipped Zed Section with and without Web Holes –Web C...IRJET Journal
1. The study investigated the web crippling behavior of cold-formed steel lipped zed sections with and without circular web holes through theoretical analysis, experimental testing, and finite element analysis using ANSYS.
2. Theoretical analysis was conducted based on IS 801-1975 and BS 5950-1998 design codes, experimental testing involved flexural testing of sections under uniformly distributed loading with and without web holes, and finite element models were developed to analyze web crippling behavior.
3. The results found that the ratio of the web hole depth to the web depth and the distance from the edge of the bearing divided by the flat depth of the web influenced web crippling. Theoretical values were higher than
Parametric Optimization of Electrochemical Machining Using Signal-To-Noise (S...IJMER
International Journal of Modern Engineering Research (IJMER) is Peer reviewed, online Journal. It serves as an international archival forum of scholarly research related to engineering and science education.
International Journal of Modern Engineering Research (IJMER) covers all the fields of engineering and science: Electrical Engineering, Mechanical Engineering, Civil Engineering, Chemical Engineering, Computer Engineering, Agricultural Engineering, Aerospace Engineering, Thermodynamics, Structural Engineering, Control Engineering, Robotics, Mechatronics, Fluid Mechanics, Nanotechnology, Simulators, Web-based Learning, Remote Laboratories, Engineering Design Methods, Education Research, Students' Satisfaction and Motivation, Global Projects, and Assessment…. And many more.
This project involved modeling and analyzing a single dry clutch plate assembly. The objectives were to model the clutch plate, perform a structural analysis of the contact surfaces between the flywheel and clutch plate, and conduct a modal analysis of the clutch plate. The model was assembled and structural analysis was performed to calculate deformation, stresses, friction, and pressure on the contact region under various loads. Mesh refinement studies were also conducted. The results showed the maximum stresses were within safe limits for the given loads and materials.
Thick PZT Films Used to Develop Efficient Piezoelectric Energy Harvesters by ...Teresa Porter
Thick PZT films were evaluated for use in piezoelectric energy harvesters. 5-6 micron thick PZT layers were deposited on nickel foil substrates using RF magnetron sputtering. Analysis showed the thick PZT films had strong {100} orientation without pyrochlore phases or microcracking. Thicker PZT films can increase energy harvester power output by providing more piezoelectric material volume, though they risk cracking under stress. This study evaluated thick films to determine their viability for energy harvesting applications.
Active vibration control of smart piezo cantilever beam using pid controllereSAT Journals
Abstract In this paper the modelling and Design of a Beam on which two Piezoelectric Ceramic Lead Zirconate Titanate ( PZT) patches are bonded on the top and bottom surface as Sensor/Actuator collocated pair is presented. The work considers the Active Vibration Control (AVC) using Proportional Integral Derivative (PID) Controller. The beam is assumed as Euler-Bernoulli beam. The two PZT patches are also treated as Euler-Bernoulli beam elements. The contribution of mass and stiffness of two PZT patches in the design of entire structure are also considered. The beam is modelled using three Finite Elements. The patches can be bonded near the fixed end, at middle or near the free end of the beam as collocated pair. The design uses first two dominant vibratory modes. The effect of PZT sensor/actuator pair is investigated at different locations of beam in vibration control. It can be concluded from the work that best result is obtained when the PZT patches are bonded near the fixed end. Keywords: Smart Beam, Active Vibration control, Piezoelectric, PID Controller, Finite Element
This document discusses piezoelectric transducers and nanogenerators. It describes how piezoelectric transducers can convert mechanical energy into electrical energy using zinc oxide nanowires. A nanogenerator contains an integrated circuit with nanowires that generate charge when bent by an applied force. Nanogenerators can harness energy from small vibrations in various applications like mobile phones, gyms, footwear, and more. While pollution-free and requiring low maintenance, they have limitations such as being prone to cracking and potential interference from stray voltages.
The document discusses various types of photosensitive devices that can convert light energy into electrical energy. It describes passive transducers like photoemissive, photoconductive cells and active photovoltaic transducers. Selenium cells are introduced as early photovoltaic devices that use the photovoltaic effect to generate voltage and current. Other active transducers discussed include photomultiplier tubes, photodiodes, and light dependent resistors. Various biomedical applications of photosensitive devices are also mentioned like pulse pickup, respiration monitoring, and blood oxygen detection.
The document discusses the piezoelectric effect, which causes certain crystals to generate an electric charge in response to applied mechanical stress. It produces concise summaries of key points, including that piezoelectricity is found in natural crystals like quartz as well as synthetic and polarized ferroelectric materials. Common piezoelectric material groups and their use in transducers, generators, and applications like sensors, medical imaging, and smart structures are also summarized.
Piezoelectric pressure transducers utilize the piezoelectric properties of certain crystalline and ceramic materials to generate an electrical signal when pressure is applied. They consist of a diaphragm that transmits pressure to a piezoelectric crystal, which generates a signal amplified by a charge amplifier. They are self-generating, have a good frequency response, and show almost zero deflection, making them well-suited for medical, aerospace, and nuclear instrumentation applications. However, they cannot measure static pressure and their output is affected by temperature changes.
Virtual instrumentation for measurement of strain using thin film strain gaug...iaemedu
This document summarizes the development of a virtual instrumentation system for measuring strain using thin film strain gauge sensors. Thin film strain gauges were deposited on a cantilever beam using sputtering deposition. A LabVIEW program was developed to acquire and plot the resistance changes in the strain gauges under different loads. The system uses National Instruments hardware including a data acquisition board and signal conditioning modules to measure microstrains with errors within 0.5%. Thin film strain gauges offer improved performance over conventional foil gauges and this system can be applied to applications requiring precision strain measurements.
Virtual instrumentation for measurement of strain using thin film strain gaug...iaemedu
This document describes the development of a virtual instrumentation system for measuring strain using thin film strain gauge sensors. Thin film nickel-chromium strain gauges were deposited on a beryllium copper cantilever substrate using DC magnetron sputtering. The strain gauges were connected to a National Instruments data acquisition system using a signal conditioning unit. A LabVIEW virtual instrument was created to acquire and display the strain measurements in engineering units as weights were added to the cantilever. The indicated strain measurements matched the calculated strain values to within 0.5% error, demonstrating the effectiveness of the virtual instrumentation system for measuring micro-strain.
IRJET- Analysis of Linear and Non-Linear Vibrations by Al Piezo-Laminated PlatesIRJET Journal
This document discusses analyzing linear and non-linear vibrations in aluminum piezo-laminated plates. Experimental and finite element analysis is conducted on plates with and without an interleaved viscoelastic layer under clamped-free configurations. Vibration reduction is achieved through piezoelectric patches that apply counteracting forces to vibrations. The analysis determines natural frequencies without actuation and with piezo patch actuation. Experimental results show reduced resonant frequencies when control is applied through piezo patches. Finite element modeling is also used to simulate the smart plate and determine optimal piezo locations, sizes, and voltages.
System identification is an emerging area in engineering fields. To assess the present health of important structures is necessary to know the status of the health of structure and subsequently to improve the health of the structure. In this work, using the finite element software, a simple structural member like beam is modeled. A simply supported beam is taken and crack is initiated at the bottom of the beam along it’s width by reducing the cross section in different location. Free vibration analysis is performed using FEM software SAP2000. There is a difference between the frequencies of cracked and un-cracked beam. From this analysis it can be predicted that there is damage in the beam, but location of the damage cannot be detected. For this, mode shape to be found out. This concept can be used to know in the real life structure whether there is any damage or not using the non-destructive techniques.
Displacement mechanical amplifiers designed on poly-siliconIJECEIAES
Using Poly-Silicon, the implementation of novel Displacement-amplifying Compliant Mechanisms (DaCM), in two geometries of accelerometers, allows for remarkable improvements in their operation frequency and displacement sensitivity, with different proportions. Similar DaCM´s geometries were previously implemented by us with Silicon. In all mentioned cases, the geometries of DaCM´s are adjusted in order to use them with Conventional Capacitive Accelerometer (CCA) and Capacitive Accelerometer with Extended Beams (CAEB), which operate in-plane mode, (y-axis). It should be noted that CAEB shows improvements (95.33%) in displacement sensitivity compared to ACC. Simulations results, carried out using Ansys Workbench software, validate the system’s performance designed with Poly-Silicon. Finally, a comparison with the similar systems, previously designed with Silicon, is also carried out.
IRJET - Parametric Study of Micro Electro-Mechanical System Capacitive Type A...IRJET Journal
This document summarizes a study on the parametric effects on a micro electro-mechanical system (MEMS) capacitive accelerometer. A 2D model of the accelerometer was created and modal analysis was performed to extract mode shapes and resonant frequencies. The deformation of the moving finger was observed at resonant frequencies of 230.80 Hz and 792.31 Hz, where the finger shape would impact the capacitance measurement. The error in measured capacitance values at these frequencies due to finger deformation was analyzed. The study found that the bandwidth of the accelerometer based on the resonant frequency difference was 562 Hz.
Proportional integral derivative controller based on ant colony optimization...IJECEIAES
Flexible plate structure provides many benefits as compared to their rigid counterparts including lower energy consumption, effective, lightweight, and quick response. However, the vibration easily affects the flexible plate structure resulting in structural damage. This study introduces the modelling of a flexible plate structure based on a system identification technique known as ant colony optimization (ACO) algorithm for vibration control. Firstly, the input-output vibration data that represent the actual structure of flexible plate was achieved from the experiment. Next, the acquired vibration data was used to develop a dynamic model of the flexible plate structure. The performances of the ACO algorithm were assess based on mean squared error (MSE), pole-zero plot and correlation test in order to get a precise and reliable outcome. The results show that ACO algorithm achieved the minimum MSE which was 6.7613 × 10−6 , high stability of pole-zero plot and excellent correlation test. Subsequently, the best model of ACO was chosen to create controller based on an active vibration control technique. It was noticed that the controller managed to obtain a 6.19 dB reduction at the first mode vibration in which the percentage of attenuation of the controller was 10.63% for sinusoidal disturbances and 9.64% for multiple sinusoidal disturbances.
A Survey on Active Constrained Layer Damping TreatmentEditor IJMTER
Vibration problems have received much attention in recent years. Passive methods,
such as sound absorbing but in low frequent noise problems these passive methods may lead to an
unacceptable increase of weight and volume materials give good results in reducing many vibration
problems. In the survey the Active Constrained Layer Damping (ACLD) is investigated regarding
the ability to increase the damping of the frequency of a beam by. In PCLD does not change its layer
where in ACLD, change its patch and layer. The piezo patch increases the shear strain in the
viscoelastic layer which increases the energy dissipation. This survey concludes with configuration
setup how can used it.
Vibration Isolation of an Air Compressor by using Sandwich Mount IsolatorsIRJET Journal
This document analyzes the vibration isolation performance of different composite isolators for an air compressor. It presents theoretical calculations of stiffness, damping coefficient, natural frequency, and transmissibility for different composite isolator combinations of rubber, felt and cork. Experimental testing is also conducted to measure acceleration and transmissibility of the air compressor mounted on different isolators. The results show that rubber composite isolators provide the best isolation with the lowest transmissibility. Felt composites provide the second best isolation. Cork composites have the highest transmissibility and provide the least vibration isolation. Both the theoretical and experimental results agree with each other. In conclusion, rubber isolators are most effective at isolating vibrations of the air compressor, followed
Strain sensors for strain measurement: A ReviewIJEEE
Structural health monitoring (SHM) is a technology used for the safety assurance of mechanical, aerospace, building structure and human life. By periodical inspection using embedded sensors like piezorestive sensor, the optical fiber sensor a SHM system can provide advanced warnings that prevent structural failures or damage. Strain is one of the most important mechanical parameters acquired by SHM systems. The factors that could potentially cause structural failures or excessive loading, vibration, foundation damages, crack development and environmental aging, etc. By monitoring strain changes in load-bearing structures the failure can be avoided. Various strains sensors have been developed. A detailed review of different strain sensing mechanisms can be found in this paper. The most commonly used strain sensor is the piezoresistive thin-film strain gauge, made using semiconductor. On the other hand, Optical fiber- based strain sensors are an attractive choice of sensor for SHM systems. OFS has characteristics like small size, light in weight, remote monitoring, ability to multiplex and immune to electromagnetic interferences.
Tensile strength is an important concept in
engineering, especially in the fields of material science,
mechanical engineering and structural Engineering. The
tensile strength of a material is the maximum amount of
tensile stress that can be applied to it before it ceases to be
elastic. If more force is applied the material will become
plastic or even break. Passed the elastic limit, the material
will not relax to its initial shape after the force is removed.
See Hooke's Law and Modulus of elasticity. The tensile
strength where the material becomes plastic is called yield
tensile strength. This is the point where the deformation
(strain) of the material is unrecovered, and the work
produced by external forces is not stored as elastic energy but
will lead to contraction, cracks and ultimately failure of the
construction. Clearly, this is a remarkable point for the
engineering properties of the material since here the
construction may lose its loading capacity or undergo large
deformations. On the stress-strain curve below this point is in
between the elastic and the plastic region. The Ultimate
Tensile Strength (UTS) of a material is the limit stress at
which the material actually breaks, with sudden release of the
stored elastic energy. Tensile strength is measured in units of
force per unit area. In the SI system, the unit is Newton per
square meter (N/m² or Pa - Pascal). The U.S customary unit is
pounds per square inch (or PSI).
The document discusses the use of optical fiber sensors for non-destructive testing applications. It notes that fiber optic sensors are well-suited for structural health monitoring due to their small size, light weight, and immunity to electromagnetic interference. The document outlines different types of fiber optic sensors and their advantages over conventional sensors. It also provides examples of how fiber optic sensors can be embedded in composite materials and structures to monitor factors like temperature, pressure, and strain for non-destructive testing.
IRJET- Investigation of Damage Level and Study on Load Deflection Charact...IRJET Journal
This document presents research on using smart sensors to monitor damage levels and load-deflection characteristics of reinforced concrete beams. An experimental study was conducted on a 1m x 0.15m x 0.15m RCC beam specimen. PZT sensors were used to sense vibrations from microcracks and macrocracks during loading. Data from the sensors was acquired using an Arduino system and analyzed to observe increasing damage levels correlated with rising load and amplitudes. Results showed the sensors could detect initial microcracks and identify the most damaged area. This smart sensor technique allows for structural health monitoring and has potential applications in alerting systems for safety of high-rise structures.
This document summarizes a study that used artificial neural networks (ANN) and fuzzy logic to predict drill wear. Acoustic emission, vibration velocity, and drill chatter measured via machine vision were used as input parameters. An ANN using backpropagation and a Mamdani fuzzy inference system were developed and compared. When predicting actual tool wear measured with a microscope, the ANN model produced better correlations and is selected for wear prediction under the present work conditions.
The document discusses capacitive micromachined ultrasonic transducers (CMUTs) and the calculation of mutual impedance between neighboring cells in CMUT arrays. It provides background on CMUTs, including their fabrication, operating principle, advantages over piezoelectric transducers, and applications. The document focuses on how the acoustic loading from neighboring cells affects each cell in a CMUT array. It states that the mutual acoustic impedance must be considered to accurately model a multi-cell CMUT element. It then describes calculating the mutual impedance between two neighboring cells in a CMUT array using MATLAB simulation.
VIBRATION LEVEL OPTIMIZATION OF LATHE MACHINE BY CONSIDERING NONLINEARITIES I...ijiert bestjournal
This document discusses vibration isolation methods for reducing noise and vibration in machines. It provides an overview of previous research on analyzing vibration levels in machines like lathe machines and blowers, and developing vibration isolators using materials like viscoelastic pads. The document reviews studies on modeling and designing nonlinear vibration isolators, and analyzing the effects of parameters like temperature on isolator performance. It concludes that vibration pads made of viscoelastic materials are effective and low-cost methods for vibration isolation in machines.
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.
The document summarizes research analyzing the tensile behavior of hybrid carbon-jute fiber reinforced epoxy composites with different fiber orientations (0°, 30°, 45°). Samples were fabricated using hand lay-up and tested under tension. Results showed the 0° orientation exhibited the highest tensile strength of 87.68 MPa. Strength decreased with 30° and 45° orientations. Finite element analysis of the 0° sample correlated closely with experimental results. In conclusion, the 0° hybrid composite demonstrated optimal tensile behavior compared to other orientations tested.
Multi Objective Optimization of Plastic Welding Parameters in USPW of PMMA CM...IRJET Journal
This document discusses optimizing parameters for ultrasonic plastic welding (USPW) of poly(methyl methacrylate) (PMMA) using Grey Relational Analysis. It investigates the effects of different USPW parameters (joint configuration, hold time, weld time, and pressure) on welding tensile strength and percent elongation. The goal is to determine the optimal parameter set that achieves maximum weld joint strength and improves weldability and production rate of plastic materials. An experiment is conducted using L27 Taguchi design of experiments to evaluate different parameter levels. Grey Relational Analysis is used to analyze results and determine the best quality weld.
This document describes research conducted on structural health monitoring using electro-mechanical impedance spectroscopy with macro fiber composite transducers. The research involved using MFC transducers bonded to an aluminum plate to detect damage by measuring changes in the structure's impedance spectrum. Both experimental testing and ANSYS simulations were performed. In experiments, an impedance analyzer was used to acquire impedance spectra from the undamaged and damaged plate and detect shifts in resonance peaks. Simulations helped guide experiment setup and validate results. The goal was to develop a database relating impedance spectra to damage location and severity to enable damage assessment.
Similar to VIBRATION ANALYSIS FOR DAMAGE DETECTION IN COMPOSITE PLATE BY USING PIEZOELECTRIC SENSORS (20)
Submission Deadline: 30th September 2022
Acceptance Notification: Within Three Days’ time period
Online Publication: Within 24 Hrs. time Period
Expected Date of Dispatch of Printed Journal: 5th October 2022
MODELING AND ANALYSIS OF SURFACE ROUGHNESS AND WHITE LATER THICKNESS IN WIRE-...IAEME Publication
White layer thickness (WLT) formed and surface roughness in wire electric discharge turning (WEDT) of tungsten carbide composite has been made to model through response surface methodology (RSM). A Taguchi’s standard Design of experiments involving five input variables with three levels has been employed to establish a mathematical model between input parameters and responses. Percentage of cobalt content, spindle speed, Pulse on-time, wire feed and pulse off-time were changed during the experimental tests based on the Taguchi’s orthogonal array L27 (3^13). Analysis of variance (ANOVA) revealed that the mathematical models obtained can adequately describe performance within the parameters of the factors considered. There was a good agreement between the experimental and predicted values in this study.
A STUDY ON THE REASONS FOR TRANSGENDER TO BECOME ENTREPRENEURSIAEME Publication
The study explores the reasons for a transgender to become entrepreneurs. In this study transgender entrepreneur was taken as independent variable and reasons to become as dependent variable. Data were collected through a structured questionnaire containing a five point Likert Scale. The study examined the data of 30 transgender entrepreneurs in Salem Municipal Corporation of Tamil Nadu State, India. Simple Random sampling technique was used. Garrett Ranking Technique (Percentile Position, Mean Scores) was used as the analysis for the present study to identify the top 13 stimulus factors for establishment of trans entrepreneurial venture. Economic advancement of a nation is governed upon the upshot of a resolute entrepreneurial doings. The conception of entrepreneurship has stretched and materialized to the socially deflated uncharted sections of transgender community. Presently transgenders have smashed their stereotypes and are making recent headlines of achievements in various fields of our Indian society. The trans-community is gradually being observed in a new light and has been trying to achieve prospective growth in entrepreneurship. The findings of the research revealed that the optimistic changes are taking place to change affirmative societal outlook of the transgender for entrepreneurial ventureship. It also laid emphasis on other transgenders to renovate their traditional living. The paper also highlights that legislators, supervisory body should endorse an impartial canons and reforms in Tamil Nadu Transgender Welfare Board Association.
BROAD UNEXPOSED SKILLS OF TRANSGENDER ENTREPRENEURSIAEME Publication
Since ages gender difference is always a debatable theme whether caused by nature, evolution or environment. The birth of a transgender is dreadful not only for the child but also for their parents. The pain of living in the wrong physique and treated as second class victimized citizen is outrageous and fully harboured with vicious baseless negative scruples. For so long, social exclusion had perpetuated inequality and deprivation experiencing ingrained malign stigma and besieged victims of crime or violence across their life spans. They are pushed into the murky way of life with a source of eternal disgust, bereft sexual potency and perennial fear. Although they are highly visible but very little is known about them. The common public needs to comprehend the ravaged arrogance on these insensitive souls and assist in integrating them into the mainstream by offering equal opportunity, treat with humanity and respect their dignity. Entrepreneurship in the current age is endorsing the gender fairness movement. Unstable careers and economic inadequacy had inclined one of the gender variant people called Transgender to become entrepreneurs. These tiny budding entrepreneurs resulted in economic transition by means of employment, free from the clutches of stereotype jobs, raised standard of living and handful of financial empowerment. Besides all these inhibitions, they were able to witness a platform for skill set development that ignited them to enter into entrepreneurial domain. This paper epitomizes skill sets involved in trans-entrepreneurs of Thoothukudi Municipal Corporation of Tamil Nadu State and is a groundbreaking determination to sightsee various skills incorporated and the impact on entrepreneurship.
DETERMINANTS AFFECTING THE USER'S INTENTION TO USE MOBILE BANKING APPLICATIONSIAEME Publication
The banking and financial services industries are experiencing increased technology penetration. Among them, the banking industry has made technological advancements to better serve the general populace. The economy focused on transforming the banking sector's system into a cashless, paperless, and faceless one. The researcher wants to evaluate the user's intention for utilising a mobile banking application. The study also examines the variables affecting the user's behaviour intention when selecting specific applications for financial transactions. The researcher employed a well-structured questionnaire and a descriptive study methodology to gather the respondents' primary data utilising the snowball sampling technique. The study includes variables like performance expectations, effort expectations, social impact, enabling circumstances, and perceived risk. Each of the aforementioned variables has a major impact on how users utilise mobile banking applications. The outcome will assist the service provider in comprehending the user's history with mobile banking applications.
ANALYSE THE USER PREDILECTION ON GPAY AND PHONEPE FOR DIGITAL TRANSACTIONSIAEME Publication
Technology upgradation in banking sector took the economy to view that payment mode towards online transactions using mobile applications. This system enabled connectivity between banks, Merchant and user in a convenient mode. there are various applications used for online transactions such as Google pay, Paytm, freecharge, mobikiwi, oxygen, phonepe and so on and it also includes mobile banking applications. The study aimed at evaluating the predilection of the user in adopting digital transaction. The study is descriptive in nature. The researcher used random sample techniques to collect the data. The findings reveal that mobile applications differ with the quality of service rendered by Gpay and Phonepe. The researcher suggest the Phonepe application should focus on implementing the application should be user friendly interface and Gpay on motivating the users to feel the importance of request for money and modes of payments in the application.
VOICE BASED ATM FOR VISUALLY IMPAIRED USING ARDUINOIAEME Publication
The prototype of a voice-based ATM for visually impaired using Arduino is to help people who are blind. This uses RFID cards which contain users fingerprint encrypted on it and interacts with the users through voice commands. ATM operates when sensor detects the presence of one person in the cabin. After scanning the RFID card, it will ask to select the mode like –normal or blind. User can select the respective mode through voice input, if blind mode is selected the balance check or cash withdraw can be done through voice input. Normal mode procedure is same as the existing ATM.
IMPACT OF EMOTIONAL INTELLIGENCE ON HUMAN RESOURCE MANAGEMENT PRACTICES AMONG...IAEME Publication
There is increasing acceptability of emotional intelligence as a major factor in personality assessment and effective human resource management. Emotional intelligence as the ability to build capacity, empathize, co-operate, motivate and develop others cannot be divorced from both effective performance and human resource management systems. The human person is crucial in defining organizational leadership and fortunes in terms of challenges and opportunities and walking across both multinational and bilateral relationships. The growing complexity of the business world requires a great deal of self-confidence, integrity, communication, conflict and diversity management to keep the global enterprise within the paths of productivity and sustainability. Using the exploratory research design and 255 participants the result of this original study indicates strong positive correlation between emotional intelligence and effective human resource management. The paper offers suggestions on further studies between emotional intelligence and human capital development and recommends for conflict management as an integral part of effective human resource management.
VISUALISING AGING PARENTS & THEIR CLOSE CARERS LIFE JOURNEY IN AGING ECONOMYIAEME Publication
Our life journey, in general, is closely defined by the way we understand the meaning of why we coexist and deal with its challenges. As we develop the "inspiration economy", we could say that nearly all of the challenges we have faced are opportunities that help us to discover the rest of our journey. In this note paper, we explore how being faced with the opportunity of being a close carer for an aging parent with dementia brought intangible discoveries that changed our insight of the meaning of the rest of our life journey.
A STUDY ON THE IMPACT OF ORGANIZATIONAL CULTURE ON THE EFFECTIVENESS OF PERFO...IAEME Publication
The main objective of this study is to analyze the impact of aspects of Organizational Culture on the Effectiveness of the Performance Management System (PMS) in the Health Care Organization at Thanjavur. Organizational Culture and PMS play a crucial role in present-day organizations in achieving their objectives. PMS needs employees’ cooperation to achieve its intended objectives. Employees' cooperation depends upon the organization’s culture. The present study uses exploratory research to examine the relationship between the Organization's culture and the Effectiveness of the Performance Management System. The study uses a Structured Questionnaire to collect the primary data. For this study, Thirty-six non-clinical employees were selected from twelve randomly selected Health Care organizations at Thanjavur. Thirty-two fully completed questionnaires were received.
Living in 21st century in itself reminds all of us the necessity of police and its administration. As more and more we are entering into the modern society and culture, the more we require the services of the so called ‘Khaki Worthy’ men i.e., the police personnel. Whether we talk of Indian police or the other nation’s police, they all have the same recognition as they have in India. But as already mentioned, their services and requirements are different after the like 26th November, 2008 incidents, where they without saving their own lives has sacrificed themselves without any hitch and without caring about their respective family members and wards. In other words, they are like our heroes and mentors who can guide us from the darkness of fear, militancy, corruption and other dark sides of life and so on. Now the question arises, if Gandhi would have been alive today, what would have been his reaction/opinion to the police and its functioning? Would he have some thing different in his mind now what he had been in his mind before the partition or would he be going to start some Satyagraha in the form of some improvement in the functioning of the police administration? Really these questions or rather night mares can come to any one’s mind, when there is too much confusion is prevailing in our minds, when there is too much corruption in the society and when the polices working is also in the questioning because of one or the other case throughout the India. It is matter of great concern that we have to thing over our administration and our practical approach because the police personals are also like us, they are part and parcel of our society and among one of us, so why we all are pin pointing towards them.
A STUDY ON TALENT MANAGEMENT AND ITS IMPACT ON EMPLOYEE RETENTION IN SELECTED...IAEME Publication
The goal of this study was to see how talent management affected employee retention in the selected IT organizations in Chennai. The fundamental issue was the difficulty to attract, hire, and retain talented personnel who perform well and the gap between supply and demand of talent acquisition and retaining them within the firms. The study's main goals were to determine the impact of talent management on employee retention in IT companies in Chennai, investigate talent management strategies that IT companies could use to improve talent acquisition, performance management, career planning and formulate retention strategies that the IT firms could use. The respondents were given a structured close-ended questionnaire with the 5 Point Likert Scale as part of the study's quantitative research design. The target population consisted of 289 IT professionals. The questionnaires were distributed and collected by the researcher directly. The Statistical Package for Social Sciences (SPSS) was used to collect and analyse the questionnaire responses. Hypotheses that were formulated for the various areas of the study were tested using a variety of statistical tests. The key findings of the study suggested that talent management had an impact on employee retention. The studies also found that there is a clear link between the implementation of talent management and retention measures. Management should provide enough training and development for employees, clarify job responsibilities, provide adequate remuneration packages, and recognise employees for exceptional performance.
ATTRITION IN THE IT INDUSTRY DURING COVID-19 PANDEMIC: LINKING EMOTIONAL INTE...IAEME Publication
Globally, Millions of dollars were spent by the organizations for employing skilled Information Technology (IT) professionals. It is costly to replace unskilled employees with IT professionals possessing technical skills and competencies that aid in interconnecting the business processes. The organization’s employment tactics were forced to alter by globalization along with technological innovations as they consistently diminish to remain lean, outsource to concentrate on core competencies along with restructuring/reallocate personnel to gather efficiency. As other jobs, organizations or professions have become reasonably more appropriate in a shifting employment landscape, the above alterations trigger both involuntary as well as voluntary turnover. The employee view on jobs is also afflicted by the COVID-19 pandemic along with the employee-driven labour market. So, having effective strategies is necessary to tackle the withdrawal rate of employees. By associating Emotional Intelligence (EI) along with Talent Management (TM) in the IT industry, the rise in attrition rate was analyzed in this study. Only 303 respondents were collected out of 350 participants to whom questionnaires were distributed. From the employees of IT organizations located in Bangalore (India), the data were congregated. A simple random sampling methodology was employed to congregate data as of the respondents. Generating the hypothesis along with testing is eventuated. The effect of EI and TM along with regression analysis between TM and EI was analyzed. The outcomes indicated that employee and Organizational Performance (OP) were elevated by effective EI along with TM.
INFLUENCE OF TALENT MANAGEMENT PRACTICES ON ORGANIZATIONAL PERFORMANCE A STUD...IAEME Publication
By implementing talent management strategy, organizations would have the option to retain their skilled professionals while additionally working on their overall performance. It is the course of appropriately utilizing the ideal individuals, setting them up for future top positions, exploring and dealing with their performance, and holding them back from leaving the organization. It is employee performance that determines the success of every organization. The firm quickly obtains an upper hand over its rivals in the event that its employees having particular skills that cannot be duplicated by the competitors. Thus, firms are centred on creating successful talent management practices and processes to deal with the unique human resources. Firms are additionally endeavouring to keep their top/key staff since on the off chance that they leave; the whole store of information leaves the firm's hands. The study's objective was to determine the impact of talent management on organizational performance among the selected IT organizations in Chennai. The study recommends that talent management limitedly affects performance. On the off chance that this talent is appropriately management and implemented properly, organizations might benefit as much as possible from their maintained assets to support development and productivity, both monetarily and non-monetarily.
A STUDY OF VARIOUS TYPES OF LOANS OF SELECTED PUBLIC AND PRIVATE SECTOR BANKS...IAEME Publication
Banking regulations act of India, 1949 defines banking as “acceptance of deposits for the purpose of lending or investment from the public, repayment on demand or otherwise and withdrawable through cheques, drafts order or otherwise”, the major participants of the Indian financial system are commercial banks, the financial institution encompassing term lending institutions. Investments institutions, specialized financial institution and the state level development banks, non banking financial companies (NBFC) and other market intermediaries such has the stock brokers and money lenders are among the oldest of the certain variants of NBFC and the oldest market participants. The asset quality of banks is one of the most important indicators of their financial health. The Indian banking sector has been facing severe problems of increasing Non- Performing Assets (NPAs). The NPAs growth directly and indirectly affects the quality of assets and profitability of banks. It also shows the efficiency of banks credit risk management and the recovery effectiveness. NPA do not generate any income, whereas, the bank is required to make provisions for such as assets that why is a double edge weapon. This paper outlines the concept of quality of bank loans of different types like Housing, Agriculture and MSME loans in state Haryana of selected public and private sector banks. This study is highlighting problems associated with the role of commercial bank in financing Small and Medium Scale Enterprises (SME). The overall objective of the research was to assess the effect of the financing provisions existing for the setting up and operations of MSMEs in the country and to generate recommendations for more robust financing mechanisms for successful operation of the MSMEs, in turn understanding the impact of MSME loans on financial institutions due to NPA. There are many research conducted on the topic of Non- Performing Assets (NPA) Management, concerning particular bank, comparative study of public and private banks etc. In this paper the researcher is considering the aggregate data of selected public sector and private sector banks and attempts to compare the NPA of Housing, Agriculture and MSME loans in state Haryana of public and private sector banks. The tools used in the study are average and Anova test and variance. The findings reveal that NPA is common problem for both public and private sector banks and is associated with all types of loans either that is housing loans, agriculture loans and loans to SMES. NPAs of both public and private sector banks show the increasing trend. In 2010-11 GNPA of public and private sector were at same level it was 2% but after 2010-11 it increased in many fold and at present there is GNPA in some more than 15%. It shows the dark area of Indian banking sector.
EXPERIMENTAL STUDY OF MECHANICAL AND TRIBOLOGICAL RELATION OF NYLON/BaSO4 POL...IAEME Publication
An experiment conducted in this study found that BaSO4 changed Nylon 6's mechanical properties. By changing the weight ratios, BaSO4 was used to make Nylon 6. This Researcher looked into how hard Nylon-6/BaSO4 composites are and how well they wear. Experiments were done based on Taguchi design L9. Nylon-6/BaSO4 composites can be tested for their hardness number using a Rockwell hardness testing apparatus. On Nylon/BaSO4, the wear behavior was measured by a wear monitor, pinon-disc friction by varying reinforcement, sliding speed, and sliding distance, and the microstructure of the crack surfaces was observed by SEM. This study provides significant contributions to ultimate strength by increasing BaSO4 content up to 16% in the composites, and sliding speed contributes 72.45% to the wear rate
ROLE OF SOCIAL ENTREPRENEURSHIP IN RURAL DEVELOPMENT OF INDIA - PROBLEMS AND ...IAEME Publication
The majority of the population in India lives in villages. The village is the back bone of the country. Village or rural industries play an important role in the national economy, particularly in the rural development. Developing the rural economy is one of the key indicators towards a country’s success. Whether it be the need to look after the welfare of the farmers or invest in rural infrastructure, Governments have to ensure that rural development isn’t compromised. The economic development of our country largely depends on the progress of rural areas and the standard of living of rural masses. Village or rural industries play an important role in the national economy, particularly in the rural development. Rural entrepreneurship is based on stimulating local entrepreneurial talent and the subsequent growth of indigenous enterprises. It recognizes opportunity in the rural areas and accelerates a unique blend of resources either inside or outside of agriculture. Rural entrepreneurship brings an economic value to the rural sector by creating new methods of production, new markets, new products and generate employment opportunities thereby ensuring continuous rural development. Social Entrepreneurship has the direct and primary objective of serving the society along with the earning profits. So, social entrepreneurship is different from the economic entrepreneurship as its basic objective is not to earn profits but for providing innovative solutions to meet the society needs which are not taken care by majority of the entrepreneurs as they are in the business for profit making as a sole objective. So, the Social Entrepreneurs have the huge growth potential particularly in the developing countries like India where we have huge societal disparities in terms of the financial positions of the population. Still 22 percent of the Indian population is below the poverty line and also there is disparity among the rural & urban population in terms of families living under BPL. 25.7 percent of the rural population & 13.7 percent of the urban population is under BPL which clearly shows the disparity of the poor people in the rural and urban areas. The need to develop social entrepreneurship in agriculture is dictated by a large number of social problems. Such problems include low living standards, unemployment, and social tension. The reasons that led to the emergence of the practice of social entrepreneurship are the above factors. The research problem lays upon disclosing the importance of role of social entrepreneurship in rural development of India. The paper the tendencies of social entrepreneurship in India, to present successful examples of such business for providing recommendations how to improve situation in rural areas in terms of social entrepreneurship development. Indian government has made some steps towards development of social enterprises, social entrepreneurship, and social in- novation, but a lot remains to be improved.
OPTIMAL RECONFIGURATION OF POWER DISTRIBUTION RADIAL NETWORK USING HYBRID MET...IAEME Publication
Distribution system is a critical link between the electric power distributor and the consumers. Most of the distribution networks commonly used by the electric utility is the radial distribution network. However in this type of network, it has technical issues such as enormous power losses which affect the quality of the supply. Nowadays, the introduction of Distributed Generation (DG) units in the system help improve and support the voltage profile of the network as well as the performance of the system components through power loss mitigation. In this study network reconfiguration was done using two meta-heuristic algorithms Particle Swarm Optimization and Gravitational Search Algorithm (PSO-GSA) to enhance power quality and voltage profile in the system when simultaneously applied with the DG units. Backward/Forward Sweep Method was used in the load flow analysis and simulated using the MATLAB program. Five cases were considered in the Reconfiguration based on the contribution of DG units. The proposed method was tested using IEEE 33 bus system. Based on the results, there was a voltage profile improvement in the system from 0.9038 p.u. to 0.9594 p.u.. The integration of DG in the network also reduced power losses from 210.98 kW to 69.3963 kW. Simulated results are drawn to show the performance of each case.
APPLICATION OF FRUGAL APPROACH FOR PRODUCTIVITY IMPROVEMENT - A CASE STUDY OF...IAEME Publication
Manufacturing industries have witnessed an outburst in productivity. For productivity improvement manufacturing industries are taking various initiatives by using lean tools and techniques. However, in different manufacturing industries, frugal approach is applied in product design and services as a tool for improvement. Frugal approach contributed to prove less is more and seems indirectly contributing to improve productivity. Hence, there is need to understand status of frugal approach application in manufacturing industries. All manufacturing industries are trying hard and putting continuous efforts for competitive existence. For productivity improvements, manufacturing industries are coming up with different effective and efficient solutions in manufacturing processes and operations. To overcome current challenges, manufacturing industries have started using frugal approach in product design and services. For this study, methodology adopted with both primary and secondary sources of data. For primary source interview and observation technique is used and for secondary source review has done based on available literatures in website, printed magazines, manual etc. An attempt has made for understanding application of frugal approach with the study of manufacturing industry project. Manufacturing industry selected for this project study is Mahindra and Mahindra Ltd. This paper will help researcher to find the connections between the two concepts productivity improvement and frugal approach. This paper will help to understand significance of frugal approach for productivity improvement in manufacturing industry. This will also help to understand current scenario of frugal approach in manufacturing industry. In manufacturing industries various process are involved to deliver the final product. In the process of converting input in to output through manufacturing process productivity plays very critical role. Hence this study will help to evolve status of frugal approach in productivity improvement programme. The notion of frugal can be viewed as an approach towards productivity improvement in manufacturing industries.
A MULTIPLE – CHANNEL QUEUING MODELS ON FUZZY ENVIRONMENTIAEME Publication
In this paper, we investigated a queuing model of fuzzy environment-based a multiple channel queuing model (M/M/C) ( /FCFS) and study its performance under realistic conditions. It applies a nonagonal fuzzy number to analyse the relevant performance of a multiple channel queuing model (M/M/C) ( /FCFS). Based on the sub interval average ranking method for nonagonal fuzzy number, we convert fuzzy number to crisp one. Numerical results reveal that the efficiency of this method. Intuitively, the fuzzy environment adapts well to a multiple channel queuing models (M/M/C) ( /FCFS) are very well.
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.
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.
Discover the latest insights on Data Driven Maintenance with our comprehensive webinar presentation. Learn about traditional maintenance challenges, the right approach to utilizing data, and the benefits of adopting a Data Driven Maintenance strategy. Explore real-world examples, industry best practices, and innovative solutions like FMECA and the D3M model. This presentation, led by expert Jules Oudmans, is essential for asset owners looking to optimize their maintenance processes and leverage digital technologies for improved efficiency and performance. Download now to stay ahead in the evolving maintenance landscape.
artificial intelligence and data science contents.pptxGauravCar
What is artificial intelligence? Artificial intelligence is the ability of a computer or computer-controlled robot to perform tasks that are commonly associated with the intellectual processes characteristic of humans, such as the ability to reason.
› ...
Artificial intelligence (AI) | Definitio
Null Bangalore | Pentesters Approach to AWS IAMDivyanshu
#Abstract:
- Learn more about the real-world methods for auditing AWS IAM (Identity and Access Management) as a pentester. So let us proceed with a brief discussion of IAM as well as some typical misconfigurations and their potential exploits in order to reinforce the understanding of IAM security best practices.
- Gain actionable insights into AWS IAM policies and roles, using hands on approach.
#Prerequisites:
- Basic understanding of AWS services and architecture
- Familiarity with cloud security concepts
- Experience using the AWS Management Console or AWS CLI.
- For hands on lab create account on [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
# Scenario Covered:
- Basics of IAM in AWS
- Implementing IAM Policies with Least Privilege to Manage S3 Bucket
- Objective: Create an S3 bucket with least privilege IAM policy and validate access.
- Steps:
- Create S3 bucket.
- Attach least privilege policy to IAM user.
- Validate access.
- Exploiting IAM PassRole Misconfiguration
-Allows a user to pass a specific IAM role to an AWS service (ec2), typically used for service access delegation. Then exploit PassRole Misconfiguration granting unauthorized access to sensitive resources.
- Objective: Demonstrate how a PassRole misconfiguration can grant unauthorized access.
- Steps:
- Allow user to pass IAM role to EC2.
- Exploit misconfiguration for unauthorized access.
- Access sensitive resources.
- Exploiting IAM AssumeRole Misconfiguration with Overly Permissive Role
- An overly permissive IAM role configuration can lead to privilege escalation by creating a role with administrative privileges and allow a user to assume this role.
- Objective: Show how overly permissive IAM roles can lead to privilege escalation.
- Steps:
- Create role with administrative privileges.
- Allow user to assume the role.
- Perform administrative actions.
- Differentiation between PassRole vs AssumeRole
Try at [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
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.