The effective operating time (EOT) of the equipment in an open pit mine determines the capacity of the mine. Clearly, EOT is only a part of the total
calendar time, which also includes various down times or non-productive times, caused by different factors. Therefore, it is important to analyze the
components of calendar time. A logical prerequisite for such an analysis as well as for predicting the capacity of a projected mine is a plausible model of
calendar time structure and clear definitions of its components. We present here such a model, which is based on a comparative study of calendar time
structure models used by several mining companies. Furthermore, we discuss the proportionality of downtimes and non-productive times to the EOT.
This is fundamental for the prediction of the capacity of open-pit mines in projection, rationalization or expansion.
Crimson Publishers-Production Scheduling in Block Caving with Consideration o...CrimsonPublishersAMMS
Production Scheduling in Block Caving with Consideration of Material Flow by Firouz Khodayari and Yashar Pourrahimian in Aspects in Mining & Mineral Science
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Optimization of productivity with surface miner using conveyor loading and tr...eSAT Journals
Abstract This paper aims at optimizing the productivity at the surface miner’s face with conveyor loading and dump-truck dispatch system to minimize the down times of surface miner as well as trucks. The surface miner was working in opencut method in a limestone mine located in the Southern part of India. Time study was carried out during three working shifts (each of eight-hour duration) for productivity analysis. A model has been developed and simulated in MATLAB for the productivity of surface miner considering the impact of two major parameters – number of trucks and available face length. The number of trucks for optimum production was found to be five. However, the 5% and 95% confidence interval for the number of trucks was 2.3 and 7.4 respectively for the case study face. It was also observed that the face of 330 m length was sufficient for the surface miner to work efficiently. Index Terms: Opencast mine, Surface miner, Mining machinery, Truck dispatch system, Productivity analysis
The document summarizes a project to address inefficiencies in the load and haul process at Dorstfontein mine. It identifies three key challenges: uneven bench preparation which delays excavators; suboptimal haul road conditions increasing travel time; and excavators failing to fully load trucks. Recommendations are to upgrade haul roads and ensure trucks are fully loaded. This is estimated to increase efficiency by 15% each, or 30% combined, reducing monthly operating costs from R9.2 million to R7.3 million.
“Achieving Mine to Market Throughput” – Iluka South West Operations – Case...Robert Bolton
A case study in how to connect people and processes to deliver product and customer value, plus material and information flow.
A holistic approach to improving flow in a complex mineral sand operation - Iluka South West Operations
Robert is pioneer of the ToC approach in mining, oil and gas, capital infrastructure and financial markets. He has developed and implemented the Theory of Constraints (TOC) concepts in mining and resources capital planning and business execution business systems.
This case study is the turnaround story at the Iluka South West operations in Capel WA. This operation is large and complex operation with 4 separate mining operations feeding a large process plant with many dependent process and common resources.
The Throughput Focused Mining (TFM) approach improved the planning and execution processes to improve the product flow and operation performance. This turnaround was rapid. This operation achieved record production rates. Operational revenue increased significantly.
The additional operating capacity released due to the “Mine to Market” initiative, led to the stopping of a significant capital project. This capital project was to increase operating capacity.
The Theory of Constraints (ToC) concepts, simulations models and education tools, were key element s of this business system solution. Short-term planning and new scheduling methods was an element of this “Mine to Market” approach. This combined with collaboration in the form of weekly meeting, scheduling tools, common terminology and various discussion groups across the business teams, enabled the business transformation to be rapid and sustaining.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
This document provides an overview of a dissertation that assesses the option value of delaying the start of an underground coal mine to implement coalbed methane drainage. It first reviews coal mining practices and coalbed methane drainage methods. It then outlines the study which evaluates the economic viability of the base case project and explores delay options of 1, 2, and 3 years through discounted cash flow and real options valuation. The results show delaying coal mining reduces net present value but real options valuation shows value in flexibility, though delay is not found to be economically justified given project parameters. Benefits of coalbed methane drainage beyond this study are also noted.
Deswik-IPCC2013 Presentation-Scenario based analysis of IPCC trade-offsDeswik
This presentation was delivered by Deswik at the I-M Mining IPCC 2013 conference on 14th October 2013.
The presentation outlines a recommended approach for assessing the viability of In Pit Crushing and Conveying (IPCC) for mining operations. The key point is that modelling MUST include both the proposed system as well as other conventional fleet areas of the mine, modelled as a single system. This allows identification of system interactions and fatal flaws that are evident only in a combined mine plan model.
In previous years multiple presentations called for development of mine planning software that is capable of effective IPCC planning. Deswik commenced work in February 2013 on addressing this need, and have formed a partnership with industry experts RWE to ensure the result is fit for purpose. This presentation illustrates techniques that use the first results of this endeavour.
Crimson Publishers-Production Scheduling in Block Caving with Consideration o...CrimsonPublishersAMMS
Production Scheduling in Block Caving with Consideration of Material Flow by Firouz Khodayari and Yashar Pourrahimian in Aspects in Mining & Mineral Science
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Optimization of productivity with surface miner using conveyor loading and tr...eSAT Journals
Abstract This paper aims at optimizing the productivity at the surface miner’s face with conveyor loading and dump-truck dispatch system to minimize the down times of surface miner as well as trucks. The surface miner was working in opencut method in a limestone mine located in the Southern part of India. Time study was carried out during three working shifts (each of eight-hour duration) for productivity analysis. A model has been developed and simulated in MATLAB for the productivity of surface miner considering the impact of two major parameters – number of trucks and available face length. The number of trucks for optimum production was found to be five. However, the 5% and 95% confidence interval for the number of trucks was 2.3 and 7.4 respectively for the case study face. It was also observed that the face of 330 m length was sufficient for the surface miner to work efficiently. Index Terms: Opencast mine, Surface miner, Mining machinery, Truck dispatch system, Productivity analysis
The document summarizes a project to address inefficiencies in the load and haul process at Dorstfontein mine. It identifies three key challenges: uneven bench preparation which delays excavators; suboptimal haul road conditions increasing travel time; and excavators failing to fully load trucks. Recommendations are to upgrade haul roads and ensure trucks are fully loaded. This is estimated to increase efficiency by 15% each, or 30% combined, reducing monthly operating costs from R9.2 million to R7.3 million.
“Achieving Mine to Market Throughput” – Iluka South West Operations – Case...Robert Bolton
A case study in how to connect people and processes to deliver product and customer value, plus material and information flow.
A holistic approach to improving flow in a complex mineral sand operation - Iluka South West Operations
Robert is pioneer of the ToC approach in mining, oil and gas, capital infrastructure and financial markets. He has developed and implemented the Theory of Constraints (TOC) concepts in mining and resources capital planning and business execution business systems.
This case study is the turnaround story at the Iluka South West operations in Capel WA. This operation is large and complex operation with 4 separate mining operations feeding a large process plant with many dependent process and common resources.
The Throughput Focused Mining (TFM) approach improved the planning and execution processes to improve the product flow and operation performance. This turnaround was rapid. This operation achieved record production rates. Operational revenue increased significantly.
The additional operating capacity released due to the “Mine to Market” initiative, led to the stopping of a significant capital project. This capital project was to increase operating capacity.
The Theory of Constraints (ToC) concepts, simulations models and education tools, were key element s of this business system solution. Short-term planning and new scheduling methods was an element of this “Mine to Market” approach. This combined with collaboration in the form of weekly meeting, scheduling tools, common terminology and various discussion groups across the business teams, enabled the business transformation to be rapid and sustaining.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
This document provides an overview of a dissertation that assesses the option value of delaying the start of an underground coal mine to implement coalbed methane drainage. It first reviews coal mining practices and coalbed methane drainage methods. It then outlines the study which evaluates the economic viability of the base case project and explores delay options of 1, 2, and 3 years through discounted cash flow and real options valuation. The results show delaying coal mining reduces net present value but real options valuation shows value in flexibility, though delay is not found to be economically justified given project parameters. Benefits of coalbed methane drainage beyond this study are also noted.
Deswik-IPCC2013 Presentation-Scenario based analysis of IPCC trade-offsDeswik
This presentation was delivered by Deswik at the I-M Mining IPCC 2013 conference on 14th October 2013.
The presentation outlines a recommended approach for assessing the viability of In Pit Crushing and Conveying (IPCC) for mining operations. The key point is that modelling MUST include both the proposed system as well as other conventional fleet areas of the mine, modelled as a single system. This allows identification of system interactions and fatal flaws that are evident only in a combined mine plan model.
In previous years multiple presentations called for development of mine planning software that is capable of effective IPCC planning. Deswik commenced work in February 2013 on addressing this need, and have formed a partnership with industry experts RWE to ensure the result is fit for purpose. This presentation illustrates techniques that use the first results of this endeavour.
This document provides an overview of a graduation project studying the SIMIAN field. It will integrate petroleum geology and exploration, drilling engineering, well logging, reservoir engineering, well testing, and production engineering. The study will include constructing structure contour maps, isopach maps, and calculating the original gas in place. It will also include determining the number of casing strings needed, designing the cement program, predicting drilling problems, and calculating the total drilling cost. Other aspects covered are making qualitative and quantitative log interpretations, identifying the reservoir driving mechanism, determining boundaries and properties from well testing, and selecting the optimum tubing size and gas processing method.
UntitledExcessive Water Production Diagnostic and Control - Case Study Jake O...Mohanned Mahjoup
For mature fields, Excessive water production is a complex subject in the oil and gas industries and has a serious economic and environmental impact. Some argue that oil industry is effectively water industry producing oil as a secondary output. Therefore, it is important to realize the different mechanisms that causing water production to better evaluate existing situation and design the optimum solution for the problem. This paper presents the water production and management situation in Jake oilfield in the southeast of Sudan; a cumulative of 14 MMBbl of water was produced till the end of 2014, without actual plan for water management in the field, only conventional shut-off methods have been tested with no success. Based on field production data and the previously applied techniques, this work identified the sources of water problems and attempts to initialize a strategy for controlling the excessive water production in the field. The production data were analyzed and a series of diagnostic plots were presented and compared with Chan’s standard diagnostic plot. As a result, distinction between channeling and conning for each well was identified; the work shows that channeling is the main reason for water production in wells with high permeability sandstone zone while conning appears only in two wells. Finally, the wells were classified according to a risk factor and selections of the candidate wells for water shut off were presented.
The Samarang oil field offshore Malaysia was initially developed by Shell in 1975 but was facing decline by 2003. PCSB took over operations and conducted a major redevelopment evaluation from 2004-2006 involving subsurface experts who created full-field static and dynamic models. This integrated plan identified infill wells and enhanced oil recovery opportunities to double production and extend the field life by 15 more years. The field was also transformed into a producing hub for nearby fields, further improving economics.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
A critical study on availability and capacity utilization of side discharge l...eSAT Journals
Abstract Improvement in production and productivity has become an important aspect for today’s coal industry especially in case of underground coal mines. The record of production and productivity of Indian underground coal mines over the years is dismal, to say the least. Mechanization in loading system has made possible major breakthroughs in underground coal mining technology. Side Discharge Loaders (SDL) is now used as a loading machine for intermediate mechanization in underground coal mining. To meet the production and productivity issues the SDL machine should be maintained effectively and efficiently to have maximum availability. Higher availability of machine shall enable optimum utilization thus increasing production and productivity of these capital intensive items.. This paper intends to identify and highlight the various factors and problems affecting performance of SDL machine. Further an attempt is made to calculate the percentage availability and utilization of SDL deployed in underground coal mines and analyzes the contributing factors to improve the overall efficiency. In addition, the problems of SDL application, breakdown and its management have also been identified and resolved in these studies to propose suitable measures for improving them. Keywords: Side Discharge Loaders, performance, assessment, scheduled hours, maintenance hours, available hours, percentage availability, percentage utilization, production efficiency, operating efficiency, management efficiency, overall efficiency.
The document summarizes a study that assessed miners' exposure to carbon monoxide and nitrogen dioxide at two underground metallic mines in Macedonia. Workers from production and development areas at one mine (Mine A) wore direct-read dosimeter tubes over three shifts to measure their exposure levels. On average, loader drivers had the highest exposures, while ventilation efficiency also impacted levels between worker groups. Exposures were found to mainly come from diesel equipment and were generally higher than in German potash mines, indicating potential for improved controls. The results provided data on miners' actual exposures to inform risk assessment and management practices at the mines.
"How to avoid rework phenomena in construction projects by maintaining a reliable organizational profile? The application of LEAN-6 SIGMA methodology minimizes time variability in construction phase."
Sag mill-operation-at-cortez evolution-of-liner-d-11Daniel Ojeda
This document discusses the evolution of liner design at the Cortez Gold Mines SAG mill from the original design to a new design intended to improve mill performance and throughput. Crash stop observations revealed issues with the original liner design such as lifter packing, slurry pooling, and broken lifters. Computer modeling validated these findings and helped identify an optimized new liner design with fewer lifters at a 28 degree face angle. The new design was expected to improve mill volume, charge motion, and throughput while reducing liner wear issues and downtime. Considerations around implementing the heavier new liner design such as safety, noise, structural impacts, and drive capabilities were also evaluated.
IDM 30 I
RECP 311
The document summarizes a productivity improvement program between Coal India Limited (CIL) and Orica to improve mining efficiency at selected coal mines. Key aspects of the program included:
1) Benchmarking current practices around drilling, blasting, and mucking operations to establish baseline productivity and costs.
2) Conducting demonstration blasts using advanced blasting technologies from Orica to improve fragmentation and productivity.
3) Comparing costs and productivity from benchmarking to demonstration phases to quantify improvements. At one mine, drilling costs decreased 22% and total mining costs decreased 31% from improved techniques.
4) Providing training to mine personnel on advanced
Here are my comments on the other points raised in the feedback:
B. You're right, overstaying due to pre-determined schedules could be considered a waste for passenger locomotives. I did not evaluate this aspect for the monthly schedule.
C. Regarding inflexibilities due to a fixed repair center - traveling repair vehicles are indeed used by my organization for certain minor repairs that can be done on-site. However, activities like Drop Pit cannot be done outside due to heavy machinery required. Expanding the scope of on-site repairs is certainly worth exploring to improve flexibility.
Overall, the feedback has helped uncover gaps in my analysis and assumptions. Things like evaluating overstay as waste, and exploring ways to decentralize
Benefits and Challenges of Implementing Carbon Capture and Sequestration Tech...theijes
This paper reviews the state of carbon dioxide (CO2) emissions, the potential benefits and challenges of
implementing Carbon Capture and Sequestration (CCS) technology in Nigeria as a means of mitigating the
threat posed in emitting CO2. In 2010 Nigeria was ranked 44th by the International Energy Agency (IEA) for
emitting about 80.51 million metric tons of CO2 annually. In this paper, the three different stages that constitute
carbon capture and sequestration are discussed individually, and then the potential for their integration into a
commercial scale CCS process is considered. CCS technology shows promising possibility for application in
plants that emit large amounts of CO2 and also considered are some technological improvements to capture
CO2 from air, as the technology can be applied for removing CO2 directly from the atmosphere and thus
reducing the effect of emissions from vehicles and other moving sources. The development and deployment of
CCS in Nigeria will be very significant in ensuring that we are able to meet increasing energy demand and keep
the lights on whilst minimizing the environmental damage. The market for CCS in Nigeria is likely to be
measured in $billions with the potential of creating over 100,000 jobs.
Efficient belt extension_process in Room and Pillar mining methodElvidge Radithongwa
Belt extension process in a Room and Pillar mine is one of the key aspects that when not given attention will prevent the operation to perform to its maximum capacity.Therefore an efficient Belt extension process is required to maximize on the production time.
Fleet management can be defined by three basic components: Equipment assignment
and optimization, Production monitoring, and Position and material monitoring. Equipment assignment
and optimization is the primary reason many construction companies choose to implement fleet
management systems in the first place. By enabling the scheduling and assignment of all types of
equipment from multiple manufacturers as well as shift change management from a central office
location. The second critical element, production monitoring, is the ability to review information on
machine cycle time, payload, loading performance and other key operational parameters. Fleet
management provides visibility in real time to this kind of data which can be tracked by individual
machine or operator, groups of machines, specific sites or an entire fleet enabling miners to make timely
changes to improve loading performance and increase payload predictability. Position and material
monitoring is the third key component. At its most basic level, fleet management is about monitoring
equipment location for an entire fleet but beyond that, it also helps to ensure that machines are in the
right location and that the amount and type of material they are moving is accurate. The study revealed
to analyze performance factors such as dump movement and haul road congestion to boost overall site
productivity.
23 Equipment Selection For Mining With Case StudiesBrittany Brown
This document is an introduction to a book about optimizing equipment selection for mining operations. It discusses how optimizing equipment selection can improve cost savings and viability for mines. It presents mathematical models developed to determine optimal truck and loader fleets over the life of a mine. The book is divided into two parts: the first provides background on equipment selection problems, productivity measures, and optimization techniques. The second applies mixed-integer linear programming models to equipment selection case studies from a mining company, evaluating fleets at multiple locations and time periods. The models provide selection and allocation of trucks and loaders to minimize materials handling costs.
Mine planning process A Madowe SAIMM paperAlfred Madowe
This document provides background information on Letseng Diamonds (Pty) Ltd, an open-pit diamond mine located in Lesotho. It summarizes that Letseng mines two kimberlite pipes containing low-grade ore, employs conventional open-pit mining methods, and utilizes dense media separation and X-ray sorting in its processing plants. The mine planning process involves pit optimization and design using various software packages to determine the optimal pit design and schedule. Key inputs to the process include geological models, costs, diamond prices, and operational constraints.
The document discusses the implementation of the sublevel shrinkage with continuous fill (SLS) mining method at the Mt Wright Underground Mine in Queensland, Australia. It describes:
1) The mine encountered geological, geotechnical and financial challenges initially that led them to implement SLS in 2010. SLS utilizes backfill to stabilize the rock mass unlike sublevel caving which relies on caving.
2) Key challenges included safety issues from working on drawpoints, stresses impacting operations from the orientation of the orebody to the major principal stress, and scheduling production across levels to maintain stresses.
3) Adaptations like pre-charging when possible, improved charge pad construction, stress shadowing through sequencing,
Weifeng Li has over 25 years of experience in resource planning and technical services for open pit and underground mines. He has extensive experience undertaking feasibility studies, life of mine plans, and production plans that have added significant value for several mining companies. Most recently, he has served as the Technical Director for private companies developing gold and iron ore mines.
IRJET- Optimization of Field Development Scheduling and Water Injection Study...IRJET Journal
The document summarizes a reservoir simulation study of the Keyi oil field in Sudan to determine the optimal development and production methods. The study used a 3D reservoir simulation model to evaluate different development scenarios. The results showed that water injection significantly improved recovery over natural depletion alone, increasing cumulative oil production from 4.4 million stock tank barrels without water injection to 10.9 million stock tank barrels with water injection. Therefore, the study concluded that water injection is the suitable method for improving recovery from the Keyi oil field reservoirs.
The document summarizes a productivity improvement program between CIL and Orica to improve mining productivity at selected coal mines. It describes benchmarking current practices and demonstrating benefits through a two phase program at the AKWMC mine in BCCL. Phase 1 involved studying current drilling, blasting, and mucking costs. Phase 2 demonstrated benefits of advanced blasting techniques, reducing costs by 30.93% overall, including 22.39% reduction in drilling costs and 29.54% reduction in blasting costs. The program improved fragmentation and sharing of knowledge between the companies.
Grindability Studies of Mineral Materials of Different MorphologyCrimsonPublishersAMMS
These studies have been carried out to compare the grinding characteristics of different morphological mineral matters. Coal, dolomite, manganese
and iron ores samples were ground using a ball mill in different grinding conditions (dry and wet) and at different critical speed (R45%, R70% and R90%)
during wet grinding. Results are compared considering the relative impact on particle size and shape. Materials were ground in a lab scale ball mill for
2hours with steel balls and size analysis of products were carried out using different size sieves (1, 0.5, 0.25, 0.15, 0.106 and 0.053mm). Microscopic
studies were carried out to know the effect of different grinding conditions on particle properties. Light, fine grain and soft dolomite shows only 8%
reduction in D80 whereas heavy, friable and hard manganese ore shows a 29% reduction in D80 for similar dry and wet grinding conditions. It was found
that light materials are less sensitive towards mill speed (R) during wet grinding. Energy calculations indicated that wet grinding is less efficient for
low density and soft materials than high density and hard materials. The relative increase in the fineness (D80) for coal, dolomite, manganese ores and
iron ores were 8.9, 6.5, 25, and 15.8%, respectively for wet and dry grinding. Variation in D/L indicates that abrasion is a prominent phenomenon in dry
grinding and chipping is more prominent in wet grinding especially for material with bedded structures.
The Physicochemical and Thermal Properties of Consciousness Energy Healing Tr...CrimsonPublishersAMMS
Silver oxide possesses antimicrobial properties and also has numerous applications in space research, chemical, and pharmaceutical industries.
It is not readily soluble in most of the solvents and highly sensitive to light. Thus, this study was executed to evaluate the impact of the Trivedi
Effect®-Consciousness Energy Healing Treatment on the physicochemical and thermal properties of silver oxide using PSA, PXRD, and DSC analytical
techniques. The test sample was divided into two parts: one part was control sample and the other part was treated sample. The control sample did not
receive Biofield Energy Treatment; whereas the treated sample received the Biofield Energy Treatment remotely by a renowned Biofield Energy Healer,
Gopal Nayak. The particle size values of the treated silver oxide powder were significantly decreased at d10, d50, d90, and D(4,3) by 9.507%, 4.957%,
3.463%, and 4.787% respectively, thus the specific surface area was significantly increased by 7.647% compared with the control sample. The peak
intensities and crystallite sizes were significantly altered from -91.53% to 26.92% and -69.76% to 8.83%, respectively; however, the average crystallite
size was significantly decreased by 35.62% in the treated sample compared with the control sample.
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This document provides an overview of a graduation project studying the SIMIAN field. It will integrate petroleum geology and exploration, drilling engineering, well logging, reservoir engineering, well testing, and production engineering. The study will include constructing structure contour maps, isopach maps, and calculating the original gas in place. It will also include determining the number of casing strings needed, designing the cement program, predicting drilling problems, and calculating the total drilling cost. Other aspects covered are making qualitative and quantitative log interpretations, identifying the reservoir driving mechanism, determining boundaries and properties from well testing, and selecting the optimum tubing size and gas processing method.
UntitledExcessive Water Production Diagnostic and Control - Case Study Jake O...Mohanned Mahjoup
For mature fields, Excessive water production is a complex subject in the oil and gas industries and has a serious economic and environmental impact. Some argue that oil industry is effectively water industry producing oil as a secondary output. Therefore, it is important to realize the different mechanisms that causing water production to better evaluate existing situation and design the optimum solution for the problem. This paper presents the water production and management situation in Jake oilfield in the southeast of Sudan; a cumulative of 14 MMBbl of water was produced till the end of 2014, without actual plan for water management in the field, only conventional shut-off methods have been tested with no success. Based on field production data and the previously applied techniques, this work identified the sources of water problems and attempts to initialize a strategy for controlling the excessive water production in the field. The production data were analyzed and a series of diagnostic plots were presented and compared with Chan’s standard diagnostic plot. As a result, distinction between channeling and conning for each well was identified; the work shows that channeling is the main reason for water production in wells with high permeability sandstone zone while conning appears only in two wells. Finally, the wells were classified according to a risk factor and selections of the candidate wells for water shut off were presented.
The Samarang oil field offshore Malaysia was initially developed by Shell in 1975 but was facing decline by 2003. PCSB took over operations and conducted a major redevelopment evaluation from 2004-2006 involving subsurface experts who created full-field static and dynamic models. This integrated plan identified infill wells and enhanced oil recovery opportunities to double production and extend the field life by 15 more years. The field was also transformed into a producing hub for nearby fields, further improving economics.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
A critical study on availability and capacity utilization of side discharge l...eSAT Journals
Abstract Improvement in production and productivity has become an important aspect for today’s coal industry especially in case of underground coal mines. The record of production and productivity of Indian underground coal mines over the years is dismal, to say the least. Mechanization in loading system has made possible major breakthroughs in underground coal mining technology. Side Discharge Loaders (SDL) is now used as a loading machine for intermediate mechanization in underground coal mining. To meet the production and productivity issues the SDL machine should be maintained effectively and efficiently to have maximum availability. Higher availability of machine shall enable optimum utilization thus increasing production and productivity of these capital intensive items.. This paper intends to identify and highlight the various factors and problems affecting performance of SDL machine. Further an attempt is made to calculate the percentage availability and utilization of SDL deployed in underground coal mines and analyzes the contributing factors to improve the overall efficiency. In addition, the problems of SDL application, breakdown and its management have also been identified and resolved in these studies to propose suitable measures for improving them. Keywords: Side Discharge Loaders, performance, assessment, scheduled hours, maintenance hours, available hours, percentage availability, percentage utilization, production efficiency, operating efficiency, management efficiency, overall efficiency.
The document summarizes a study that assessed miners' exposure to carbon monoxide and nitrogen dioxide at two underground metallic mines in Macedonia. Workers from production and development areas at one mine (Mine A) wore direct-read dosimeter tubes over three shifts to measure their exposure levels. On average, loader drivers had the highest exposures, while ventilation efficiency also impacted levels between worker groups. Exposures were found to mainly come from diesel equipment and were generally higher than in German potash mines, indicating potential for improved controls. The results provided data on miners' actual exposures to inform risk assessment and management practices at the mines.
"How to avoid rework phenomena in construction projects by maintaining a reliable organizational profile? The application of LEAN-6 SIGMA methodology minimizes time variability in construction phase."
Sag mill-operation-at-cortez evolution-of-liner-d-11Daniel Ojeda
This document discusses the evolution of liner design at the Cortez Gold Mines SAG mill from the original design to a new design intended to improve mill performance and throughput. Crash stop observations revealed issues with the original liner design such as lifter packing, slurry pooling, and broken lifters. Computer modeling validated these findings and helped identify an optimized new liner design with fewer lifters at a 28 degree face angle. The new design was expected to improve mill volume, charge motion, and throughput while reducing liner wear issues and downtime. Considerations around implementing the heavier new liner design such as safety, noise, structural impacts, and drive capabilities were also evaluated.
IDM 30 I
RECP 311
The document summarizes a productivity improvement program between Coal India Limited (CIL) and Orica to improve mining efficiency at selected coal mines. Key aspects of the program included:
1) Benchmarking current practices around drilling, blasting, and mucking operations to establish baseline productivity and costs.
2) Conducting demonstration blasts using advanced blasting technologies from Orica to improve fragmentation and productivity.
3) Comparing costs and productivity from benchmarking to demonstration phases to quantify improvements. At one mine, drilling costs decreased 22% and total mining costs decreased 31% from improved techniques.
4) Providing training to mine personnel on advanced
Here are my comments on the other points raised in the feedback:
B. You're right, overstaying due to pre-determined schedules could be considered a waste for passenger locomotives. I did not evaluate this aspect for the monthly schedule.
C. Regarding inflexibilities due to a fixed repair center - traveling repair vehicles are indeed used by my organization for certain minor repairs that can be done on-site. However, activities like Drop Pit cannot be done outside due to heavy machinery required. Expanding the scope of on-site repairs is certainly worth exploring to improve flexibility.
Overall, the feedback has helped uncover gaps in my analysis and assumptions. Things like evaluating overstay as waste, and exploring ways to decentralize
Benefits and Challenges of Implementing Carbon Capture and Sequestration Tech...theijes
This paper reviews the state of carbon dioxide (CO2) emissions, the potential benefits and challenges of
implementing Carbon Capture and Sequestration (CCS) technology in Nigeria as a means of mitigating the
threat posed in emitting CO2. In 2010 Nigeria was ranked 44th by the International Energy Agency (IEA) for
emitting about 80.51 million metric tons of CO2 annually. In this paper, the three different stages that constitute
carbon capture and sequestration are discussed individually, and then the potential for their integration into a
commercial scale CCS process is considered. CCS technology shows promising possibility for application in
plants that emit large amounts of CO2 and also considered are some technological improvements to capture
CO2 from air, as the technology can be applied for removing CO2 directly from the atmosphere and thus
reducing the effect of emissions from vehicles and other moving sources. The development and deployment of
CCS in Nigeria will be very significant in ensuring that we are able to meet increasing energy demand and keep
the lights on whilst minimizing the environmental damage. The market for CCS in Nigeria is likely to be
measured in $billions with the potential of creating over 100,000 jobs.
Efficient belt extension_process in Room and Pillar mining methodElvidge Radithongwa
Belt extension process in a Room and Pillar mine is one of the key aspects that when not given attention will prevent the operation to perform to its maximum capacity.Therefore an efficient Belt extension process is required to maximize on the production time.
Fleet management can be defined by three basic components: Equipment assignment
and optimization, Production monitoring, and Position and material monitoring. Equipment assignment
and optimization is the primary reason many construction companies choose to implement fleet
management systems in the first place. By enabling the scheduling and assignment of all types of
equipment from multiple manufacturers as well as shift change management from a central office
location. The second critical element, production monitoring, is the ability to review information on
machine cycle time, payload, loading performance and other key operational parameters. Fleet
management provides visibility in real time to this kind of data which can be tracked by individual
machine or operator, groups of machines, specific sites or an entire fleet enabling miners to make timely
changes to improve loading performance and increase payload predictability. Position and material
monitoring is the third key component. At its most basic level, fleet management is about monitoring
equipment location for an entire fleet but beyond that, it also helps to ensure that machines are in the
right location and that the amount and type of material they are moving is accurate. The study revealed
to analyze performance factors such as dump movement and haul road congestion to boost overall site
productivity.
23 Equipment Selection For Mining With Case StudiesBrittany Brown
This document is an introduction to a book about optimizing equipment selection for mining operations. It discusses how optimizing equipment selection can improve cost savings and viability for mines. It presents mathematical models developed to determine optimal truck and loader fleets over the life of a mine. The book is divided into two parts: the first provides background on equipment selection problems, productivity measures, and optimization techniques. The second applies mixed-integer linear programming models to equipment selection case studies from a mining company, evaluating fleets at multiple locations and time periods. The models provide selection and allocation of trucks and loaders to minimize materials handling costs.
Mine planning process A Madowe SAIMM paperAlfred Madowe
This document provides background information on Letseng Diamonds (Pty) Ltd, an open-pit diamond mine located in Lesotho. It summarizes that Letseng mines two kimberlite pipes containing low-grade ore, employs conventional open-pit mining methods, and utilizes dense media separation and X-ray sorting in its processing plants. The mine planning process involves pit optimization and design using various software packages to determine the optimal pit design and schedule. Key inputs to the process include geological models, costs, diamond prices, and operational constraints.
The document discusses the implementation of the sublevel shrinkage with continuous fill (SLS) mining method at the Mt Wright Underground Mine in Queensland, Australia. It describes:
1) The mine encountered geological, geotechnical and financial challenges initially that led them to implement SLS in 2010. SLS utilizes backfill to stabilize the rock mass unlike sublevel caving which relies on caving.
2) Key challenges included safety issues from working on drawpoints, stresses impacting operations from the orientation of the orebody to the major principal stress, and scheduling production across levels to maintain stresses.
3) Adaptations like pre-charging when possible, improved charge pad construction, stress shadowing through sequencing,
Weifeng Li has over 25 years of experience in resource planning and technical services for open pit and underground mines. He has extensive experience undertaking feasibility studies, life of mine plans, and production plans that have added significant value for several mining companies. Most recently, he has served as the Technical Director for private companies developing gold and iron ore mines.
IRJET- Optimization of Field Development Scheduling and Water Injection Study...IRJET Journal
The document summarizes a reservoir simulation study of the Keyi oil field in Sudan to determine the optimal development and production methods. The study used a 3D reservoir simulation model to evaluate different development scenarios. The results showed that water injection significantly improved recovery over natural depletion alone, increasing cumulative oil production from 4.4 million stock tank barrels without water injection to 10.9 million stock tank barrels with water injection. Therefore, the study concluded that water injection is the suitable method for improving recovery from the Keyi oil field reservoirs.
The document summarizes a productivity improvement program between CIL and Orica to improve mining productivity at selected coal mines. It describes benchmarking current practices and demonstrating benefits through a two phase program at the AKWMC mine in BCCL. Phase 1 involved studying current drilling, blasting, and mucking costs. Phase 2 demonstrated benefits of advanced blasting techniques, reducing costs by 30.93% overall, including 22.39% reduction in drilling costs and 29.54% reduction in blasting costs. The program improved fragmentation and sharing of knowledge between the companies.
Similar to Modelling Calendar Time Structure for Open Pit Mining Equipment Performance Calculations (20)
Grindability Studies of Mineral Materials of Different MorphologyCrimsonPublishersAMMS
These studies have been carried out to compare the grinding characteristics of different morphological mineral matters. Coal, dolomite, manganese
and iron ores samples were ground using a ball mill in different grinding conditions (dry and wet) and at different critical speed (R45%, R70% and R90%)
during wet grinding. Results are compared considering the relative impact on particle size and shape. Materials were ground in a lab scale ball mill for
2hours with steel balls and size analysis of products were carried out using different size sieves (1, 0.5, 0.25, 0.15, 0.106 and 0.053mm). Microscopic
studies were carried out to know the effect of different grinding conditions on particle properties. Light, fine grain and soft dolomite shows only 8%
reduction in D80 whereas heavy, friable and hard manganese ore shows a 29% reduction in D80 for similar dry and wet grinding conditions. It was found
that light materials are less sensitive towards mill speed (R) during wet grinding. Energy calculations indicated that wet grinding is less efficient for
low density and soft materials than high density and hard materials. The relative increase in the fineness (D80) for coal, dolomite, manganese ores and
iron ores were 8.9, 6.5, 25, and 15.8%, respectively for wet and dry grinding. Variation in D/L indicates that abrasion is a prominent phenomenon in dry
grinding and chipping is more prominent in wet grinding especially for material with bedded structures.
The Physicochemical and Thermal Properties of Consciousness Energy Healing Tr...CrimsonPublishersAMMS
Silver oxide possesses antimicrobial properties and also has numerous applications in space research, chemical, and pharmaceutical industries.
It is not readily soluble in most of the solvents and highly sensitive to light. Thus, this study was executed to evaluate the impact of the Trivedi
Effect®-Consciousness Energy Healing Treatment on the physicochemical and thermal properties of silver oxide using PSA, PXRD, and DSC analytical
techniques. The test sample was divided into two parts: one part was control sample and the other part was treated sample. The control sample did not
receive Biofield Energy Treatment; whereas the treated sample received the Biofield Energy Treatment remotely by a renowned Biofield Energy Healer,
Gopal Nayak. The particle size values of the treated silver oxide powder were significantly decreased at d10, d50, d90, and D(4,3) by 9.507%, 4.957%,
3.463%, and 4.787% respectively, thus the specific surface area was significantly increased by 7.647% compared with the control sample. The peak
intensities and crystallite sizes were significantly altered from -91.53% to 26.92% and -69.76% to 8.83%, respectively; however, the average crystallite
size was significantly decreased by 35.62% in the treated sample compared with the control sample.
Innovative Engineering Design of the High-Angle Conveyor for Mining of Deep-S...CrimsonPublishersAMMS
The article analyzes the engineering design and the process of transportation of coarse-grained rock mass by two-contour steep-inclined conveyors with stationary clamping devices, shows their most significant disadvantages. It shows the structure of the dual steeply inclined conveyor with a moving clamping elements, developed by the staff of the Institute of Mining UB RAS, the design feature of which is the implementation of the clamping elements in the form of corrugations affixed to the outer (working) belt surface of the load carrying profile. Design features of the steep-slope belt conveyor with moving clamping elements in form of corrugations provide a reliable rise of uneven flow of rock mass due to: the simultaneous use of forced pressing of the transported material in the chute of the load-bearing belt and of the effect of deep fluting; clamping elements moving synchronously with the load-bearing belt, resilient-elastic properties of clamping elements, allowing them to perform an additional supporting function for the transported material. Studies have shown that the developed design provides an increase in the coefficient of use of the equipment in 2 times, reducies tape wear by 20-40%, compared with foreign analogues.
https://crimsonpublishers.com/amms/fulltext/AMMS.000535.php
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Kinetics Etude of the Experimental Leaching of Sphalerite Using Acidic Lixivi...CrimsonPublishersAMMS
The influence of physico-chemical parameters such as acid concentration, temperature, particle size and time of leaching on the chemical dissolution of the sphalerite ore in sulfuric acid was examined. At a temperature of 358 K by 2 mol.l-1 H2SO4, a stirring speed of 300 rpm, initial solid / liquid ratio of 10 g/L and particle size (-125 +63^m), about 99 % of zinc was extracted inside 120min. The experimental data of this leaching technique was established by way of the shrinking core model under chemically reaction controlled processes, the corresponding activation energy for the recovery of zinc Ea calculated from the Arrhenius expression to be 18.63kJ/mole.
Key Factors of Logistic Capacity of a Mining Enterprise, Management of Proces...CrimsonPublishersAMMS
The problem of assessment of logistic providing of the mining industry and production management with maximum efficiency is considered. The technique of integrated assessment of logistic capacity of the enterprise in the form of the sum of all product weight coefficient and ball values of components of system. It is proposed to be achieved through contour-integrated control of the logistical processes of the mining enterprise. The production logistics tasks included in the integrated system are formulated. A methodology for the operational management of the loading and transport complex has been developed.
Model Study of Slope Stability in Open Pit by Numerical Modeling Using the Fi...CrimsonPublishersAMMS
Model Study of Slope Stability in Open Pit by Numerical Modeling Using the Finite Element Method by Saadoun Abderrazak in Aspects in Mining & Mineral Science
Application of Macro-Synthetic-Fiber-Reinforced Sprayed Concrete for Primary ...CrimsonPublishersAMMS
Application of Macro-Synthetic-Fiber-Reinforced Sprayed Concrete for Primary Lining Support on Highway Tunnel Project in Bosnia and Herzegovina by Dipl Ing Vedad Terzic in Aspects in Mining & Mineral Science
Microbial Communities Involved in Methane Production from Coal Treated by Pot...CrimsonPublishersAMMS
Microbial Communities Involved in Methane Production from Coal Treated by Potassium Permanganate by Zaixing Huang in Aspects in Mining & Mineral Science
Mineralization of Rare Earths, Platinum and Gold in a Sedimentary Deposit, Fo...CrimsonPublishersAMMS
Mineralization of Rare Earths, Platinum and Gold in a Sedimentary Deposit, Found Using an Indirect Method of Exploration by Eleazar Salinas-Rodríguez in Aspects in Mining & Mineral Science
Critical Issues of Sustainability Associated with Quarry Activities-Crimson P...CrimsonPublishersAMMS
Critical Issues of Sustainability Associated with Quarry Activities by Nwachukwu MA*, Ojeaga K and Gilbert Chinelo in Aspects in Mining & Mineral Science
The Effect of Bed Thickness and Cooling Time on the Rate of Copper Slag Cooli...CrimsonPublishersAMMS
The Effect of Bed Thickness and Cooling Time
on the Rate of Copper Slag Cooling, Case Study:Khatoonabad Copper Smelter Plant by Esmaeil Rahimi and Neda Mohaghegh in Aspects in Mining & Mineral Science
Clay Migration in Proppant during Production in Argillaceous Unconsolidated R...CrimsonPublishersAMMS
Clay Migration in Proppant during Production in Argillaceous Unconsolidated Reservoir by Weidong Zhanga*, Xuhui Guan, Maoyong Fu and Shouqiang Zhao in Aspects in Mining & Mineral Science
The Formation of Two-Phase Periodic Structures-Crimson PublishersCrimsonPublishersAMMS
1) The document discusses the formation of two-phase periodic structures during crystallization of solutions. It presents experiments showing that in many cases, solutions decompose by spinodal decomposition rather than the typically assumed binodal decomposition.
2) Spinodal decomposition occurs when fluctuations in concentration cause the solution to separate continuously into regions of different composition throughout the entire volume simultaneously, without sharp boundaries. This differs from binodal decomposition where clusters of the new phase form and grow.
3) Experiments observing the crystallization of dye solutions provide evidence that spinodal decomposition occurs, shown by continuous changes in concentration across the entire solution volume leading to the formation of periodic compositional patterns. This challenges the assumption that solutions are always in a metastable state
To Priority the Success Factors in the Design of Progressive Die by DFSS Meth...CrimsonPublishersAMMS
To Priority the Success Factors in the Design of Progressive Die by DFSS Methodology by Mozhgan Nozari, Amir Abbas Shojaie* and Sadigh Raissi in Aspects in Mining & Mineral Science
This document provides an introduction to metals obtained from ores. It discusses how ores contain mixtures of minerals that are processed to extract industrial minerals and metals. Ores first undergo beneficiation by physical methods to separate minerals, then chemical methods to recover metals. Metals and metalloids are classified based on their chemical composition and physical properties. Major metallic minerals are discussed, including their typical compositions and common uses for metal production or other purposes like refractories. Classification schemes for important ore types like chromites and manganese ores are also presented based on their grade and suitable end uses.
KuberTENes Birthday Bash Guadalajara - K8sGPT first impressionsVictor Morales
K8sGPT is a tool that analyzes and diagnoses Kubernetes clusters. This presentation was used to share the requirements and dependencies to deploy K8sGPT in a local environment.
A SYSTEMATIC RISK ASSESSMENT APPROACH FOR SECURING THE SMART IRRIGATION SYSTEMSIJNSA Journal
The smart irrigation system represents an innovative approach to optimize water usage in agricultural and landscaping practices. The integration of cutting-edge technologies, including sensors, actuators, and data analysis, empowers this system to provide accurate monitoring and control of irrigation processes by leveraging real-time environmental conditions. The main objective of a smart irrigation system is to optimize water efficiency, minimize expenses, and foster the adoption of sustainable water management methods. This paper conducts a systematic risk assessment by exploring the key components/assets and their functionalities in the smart irrigation system. The crucial role of sensors in gathering data on soil moisture, weather patterns, and plant well-being is emphasized in this system. These sensors enable intelligent decision-making in irrigation scheduling and water distribution, leading to enhanced water efficiency and sustainable water management practices. Actuators enable automated control of irrigation devices, ensuring precise and targeted water delivery to plants. Additionally, the paper addresses the potential threat and vulnerabilities associated with smart irrigation systems. It discusses limitations of the system, such as power constraints and computational capabilities, and calculates the potential security risks. The paper suggests possible risk treatment methods for effective secure system operation. In conclusion, the paper emphasizes the significant benefits of implementing smart irrigation systems, including improved water conservation, increased crop yield, and reduced environmental impact. Additionally, based on the security analysis conducted, the paper recommends the implementation of countermeasures and security approaches to address vulnerabilities and ensure the integrity and reliability of the system. By incorporating these measures, smart irrigation technology can revolutionize water management practices in agriculture, promoting sustainability, resource efficiency, and safeguarding against potential security threats.
A review on techniques and modelling methodologies used for checking electrom...nooriasukmaningtyas
The proper function of the integrated circuit (IC) in an inhibiting electromagnetic environment has always been a serious concern throughout the decades of revolution in the world of electronics, from disjunct devices to today’s integrated circuit technology, where billions of transistors are combined on a single chip. The automotive industry and smart vehicles in particular, are confronting design issues such as being prone to electromagnetic interference (EMI). Electronic control devices calculate incorrect outputs because of EMI and sensors give misleading values which can prove fatal in case of automotives. In this paper, the authors have non exhaustively tried to review research work concerned with the investigation of EMI in ICs and prediction of this EMI using various modelling methodologies and measurement setups.
CHINA’S GEO-ECONOMIC OUTREACH IN CENTRAL ASIAN COUNTRIES AND FUTURE PROSPECTjpsjournal1
The rivalry between prominent international actors for dominance over Central Asia's hydrocarbon
reserves and the ancient silk trade route, along with China's diplomatic endeavours in the area, has been
referred to as the "New Great Game." This research centres on the power struggle, considering
geopolitical, geostrategic, and geoeconomic variables. Topics including trade, political hegemony, oil
politics, and conventional and nontraditional security are all explored and explained by the researcher.
Using Mackinder's Heartland, Spykman Rimland, and Hegemonic Stability theories, examines China's role
in Central Asia. This study adheres to the empirical epistemological method and has taken care of
objectivity. This study analyze primary and secondary research documents critically to elaborate role of
china’s geo economic outreach in central Asian countries and its future prospect. China is thriving in trade,
pipeline politics, and winning states, according to this study, thanks to important instruments like the
Shanghai Cooperation Organisation and the Belt and Road Economic Initiative. According to this study,
China is seeing significant success in commerce, pipeline politics, and gaining influence on other
governments. This success may be attributed to the effective utilisation of key tools such as the Shanghai
Cooperation Organisation and the Belt and Road Economic Initiative.
DEEP LEARNING FOR SMART GRID INTRUSION DETECTION: A HYBRID CNN-LSTM-BASED MODELgerogepatton
As digital technology becomes more deeply embedded in power systems, protecting the communication
networks of Smart Grids (SG) has emerged as a critical concern. Distributed Network Protocol 3 (DNP3)
represents a multi-tiered application layer protocol extensively utilized in Supervisory Control and Data
Acquisition (SCADA)-based smart grids to facilitate real-time data gathering and control functionalities.
Robust Intrusion Detection Systems (IDS) are necessary for early threat detection and mitigation because
of the interconnection of these networks, which makes them vulnerable to a variety of cyberattacks. To
solve this issue, this paper develops a hybrid Deep Learning (DL) model specifically designed for intrusion
detection in smart grids. The proposed approach is a combination of the Convolutional Neural Network
(CNN) and the Long-Short-Term Memory algorithms (LSTM). We employed a recent intrusion detection
dataset (DNP3), which focuses on unauthorized commands and Denial of Service (DoS) cyberattacks, to
train and test our model. The results of our experiments show that our CNN-LSTM method is much better
at finding smart grid intrusions than other deep learning algorithms used for classification. In addition,
our proposed approach improves accuracy, precision, recall, and F1 score, achieving a high detection
accuracy rate of 99.50%.
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.
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.
Using recycled concrete aggregates (RCA) for pavements is crucial to achieving sustainability. Implementing RCA for new pavement can minimize carbon footprint, conserve natural resources, reduce harmful emissions, and lower life cycle costs. Compared to natural aggregate (NA), RCA pavement has fewer comprehensive studies and sustainability assessments.
ACEP Magazine edition 4th launched on 05.06.2024Rahul
This document provides information about the third edition of the magazine "Sthapatya" published by the Association of Civil Engineers (Practicing) Aurangabad. It includes messages from current and past presidents of ACEP, memories and photos from past ACEP events, information on life time achievement awards given by ACEP, and a technical article on concrete maintenance, repairs and strengthening. The document highlights activities of ACEP and provides a technical educational article for members.