Water manufactured is the primary waste source in the oil and gas industry. Because of the rising amount of waste worldwide, the environmental effect of wastewater has become a primary environmental concern in recent ...Water manufactured is the primary waste source in the oil and gas industry. Because of the rising amount of waste worldwide, the environmental effect of wastewater has become a primary environmental concern in recent years. The vast amounts involved have resulted in considerable costs to the industry for handling produced water. This research explains the wide variety of choices for water management. This research’s first phase was water minimization techniques, consisting of three different applications made in three different wells (Well 1, Well 2 and Well 3) and water recycling and reuse by two techniques. In Well 1, Mechanical shut-off technique was applied using through tubing bridge plug and 5 m cement dumped above it to isolate the watered out zone;as per water oil ration plot the water cut is decreased from 100% to 4% and the production is increased from 0 to 400 bcpd. In Well 2, Chemical shut-off technique using a polymer called Brightwater has been used to block channeling through high permeability intervals after PLT log detected it, and the result was brilliant, the water cut decreased from 60% to 25%, also the oil production increase from 500 to 3000 bopd. In Well 3, downhole separator installed in it using workover (unfortunately, this technique is not applied in middle east till the moment so this application is taken from an oil field in Canada)and the result was perfect, the water cut decreased from 70% to 28%, also the oil production increase from 44 to 100 bopd. This study tried to clarify and compare the most widely used water management techniques using one of the Western Desert (W.D.) (enhanced for oil recovery, constructed wetland).展开更多
Mobile networks possess significant information and thus are considered a gold mine for the researcher’s community.The call detail records(CDR)of a mobile network are used to identify the network’s efficacy and the ...Mobile networks possess significant information and thus are considered a gold mine for the researcher’s community.The call detail records(CDR)of a mobile network are used to identify the network’s efficacy and the mobile user’s behavior.It is evident from the recent literature that cyber-physical systems(CPS)were used in the analytics and modeling of telecom data.In addition,CPS is used to provide valuable services in smart cities.In general,a typical telecom company hasmillions of subscribers and thus generatesmassive amounts of data.From this aspect,data storage,analysis,and processing are the key concerns.To solve these issues,herein we propose a multilevel cyber-physical social system(CPSS)for the analysis and modeling of large internet data.Our proposed multilevel system has three levels and each level has a specific functionality.Initially,raw Call Detail Data(CDR)was collected at the first level.Herein,the data preprocessing,cleaning,and error removal operations were performed.In the second level,data processing,cleaning,reduction,integration,processing,and storage were performed.Herein,suggested internet activity record measures were applied.Our proposed system initially constructs a graph and then performs network analysis.Thus proposed CPSS system accurately identifies different areas of internet peak usage in a city(Milan city).Our research is helpful for the network operators to plan effective network configuration,management,and optimization of resources.展开更多
Recent progresses in efficient management of nitrogen fertilizers for flooded rice in relation to nitrogen transformations in flooded soil were reviewed.Considerable progress has been achieved in the investigation on ...Recent progresses in efficient management of nitrogen fertilizers for flooded rice in relation to nitrogen transformations in flooded soil were reviewed.Considerable progress has been achieved in the investigation on the mechanism of ammonia loss and the factors affecting it .However,little progress has been obtained in the investigations on nitrification-denitrification loss owing to the lack of method for estimating the fluxes of gaseous N products.Thus,so far the management practices developed or under investigation primarily for reducing ammonia loss are feasible or promising,while those for reducing nitrification-denitrification loss seem obscure,except the point deep placement. In addition,it was emphasized that the prediction of soil N supply and the recommendation of the optimal rate of N application based on it are only semi-quantitative.The priorities in research for improving the prediction are indicated.展开更多
Facing the opportunities and challenges of China’s en try into WTO, logistics enterprises take BPR as an important way to improve the core competence.But modern logistics is a systematic engineering and its require m...Facing the opportunities and challenges of China’s en try into WTO, logistics enterprises take BPR as an important way to improve the core competence.But modern logistics is a systematic engineering and its require ments are the standardization and normalization for enhancing the Chinese enterp rises’ level of logistic activities.This paper reveal the importance of manageme nt technique,information technique and business model in enterprise’s BPR throug h the positive analysis for business process of the third party logistics as a new system after reengineering businees process. Reorganization of marketing target. The characters of business procedure after N ew Sunshine recomposed include: "the last mile " service systems of logistics; s etting up HUB to control many end-points in big and middle cities, setting up s ingle-points in small cities, the small parts acting delivering system which st yle of "assembly and allot" are made of in. Reorganization of business model. The New Sunshine reorganized has three aspects of business model which set up: HUB, end-point and single-point. Reorganization of business process.The mainly business process of restructure Ne w Sunshine include : standard quote declaring prices to all attendants; on line, timely and exactly declaring prices; The net contract of B2C work on line; Tran smit to attendant; Logistice operating; feedback the working information; User t rack goods condition; Settling information; paying and so on, the different busi ness can separate into kinds of right corresponding to the business process, suc h as the picture of distributing parcel, ordering, moving, picking, transporting , delivering, information, inquiring and settling. Set up standard systems. Aims to execute standard management is to make distribu te and logistics for norm and standard, according to the resources share tog ether with the progresses especially and base on reducing the necessary expenses to reduce the living expenses, while low cost and effectively to ensure the goo d service for satisfy the present and potential needs of the customers.展开更多
A cross-sectional study of 150 purposively selected multiple livestock species farmers was conducted in Central Uganda aimed at distinguishing between mixed and integrated livestock systems. Performance and operationa...A cross-sectional study of 150 purposively selected multiple livestock species farmers was conducted in Central Uganda aimed at distinguishing between mixed and integrated livestock systems. Performance and operational-based challenges misconstrued to cause incorrect comparison between the two systems were considered. Ten multiple-livestock species system with five ruminant species-based and five monogastric species-based combinations were categorised. Poultry, pig, fish, goats and sheep kept in both the 3 and 4-species combinations were considered. Over 80% of the families are male dominated, smallholder and occupying > 1.0 Ha of land. Exotic and crossbred breeds were adopted away from less productive and noncommercial local species. Mixed monogastric-fish systems with monogastric species dominated (P 1000) stock per farm. Stalls dominate pig management systems with 15% of the farmers upgraded to commercial level with (>50) stock per farm. Ineffective livestock policies contribute to inefficient performance of 55% of livestock farmers. In conclusion, mixed livestock systems should be upgraded to integrated livestock systems with input resource synergy for improved production and sustainability.展开更多
With the development of the times and the improvement of the economic level,the people’s ideological consciousness has gradually changed,driven by the scientific concept of development and the concept of sustainable ...With the development of the times and the improvement of the economic level,the people’s ideological consciousness has gradually changed,driven by the scientific concept of development and the concept of sustainable development,the people have been able to realize that,traditionally,the extensive economic model has led to more serious damage to the environment,and caused a certain degree of resource waste,but also endangered human health.As a result,the concept of healthy living has received more and more widespread attention.The construction industry as an important pillar of China’s economic development,but also the implementation of the concept of sustainable development in China is one of the key points for the implementation of green construction of large public buildings,it is necessary to strengthen the management of technology,so in this paper,will be the main green construction of large public buildings management technology analysis work.展开更多
In recent years, the rapid development of social economy has promoted the reform and innovation of different industries in our country. While enterprises are facing the ever-changing trend of market changes, economist...In recent years, the rapid development of social economy has promoted the reform and innovation of different industries in our country. While enterprises are facing the ever-changing trend of market changes, economists are gradually showing their role in human resources management. I mainly analyzed the concept of human resources management of economists, and discussed the value of economists and human resources management in professional and technical management and management strategies, hoping to provide reference for continuously improving the effectiveness of human resources management of economists.展开更多
This research delves into the complicated issues associated with demolition,renovation,and construction of buildings to find viable,sustainable practices that will relieve some strain on nature.Identifying major compo...This research delves into the complicated issues associated with demolition,renovation,and construction of buildings to find viable,sustainable practices that will relieve some strain on nature.Identifying major components like governmental policies,cooperative work of stakeholders,assimilation of technology,and the possible transformative capacity brought by Building Information Modeling(BIM),this research attempts to unveil how a more ecologically mindful construction industry can be achieved.The methodology used in this research has a multi-dimensional approach that is aimed at thoroughly understanding and clearing the challenges within the construction industry.The strengths like government support,stakeholder involvement,technological innovations,and adoption of BIM assist in building a strong base for sustainability.The research identified opportunities for technological advancements,special solutions,and government incentives.Technological advancement is a constantly changing environment,which gives the building sector an opportunity to adapt and enhance its recycling strategies.Customized solutions highlight the fact that such"place-based"strategies are needed because different urban,suburban,and rural landscapes present distinct challenges.Most property owners would be convinced to swap their regular buildings with sustainable building techniques through incentives from the government,such as tax benefits and subsidies.Furthermore,regulatory compliance issues and resistance to change cement the fact that societies need not only solid guidelines but also constant efforts to redefine standards in every industry.Effective negotiation between stakeholders becomes essential.Therefore,it can be stated that the findings give weight as catalysts of change in terms of action within the construction industry.展开更多
In the face of rising food demand and declining wheat acreage,improving wheat yield and resource use efficiency will be key to sustainable wheat production.To address the challenge,this study proposed a framework for ...In the face of rising food demand and declining wheat acreage,improving wheat yield and resource use efficiency will be key to sustainable wheat production.To address the challenge,this study proposed a framework for wheat green production,quantified the benefits of key technologies and technology models based on the framework in wheat yield and nitrogen use efficiency(NUE),and developed a new model for the promotion of technology.The framework included soil,root layer and canopy systems,where the adoption of single technologies based on the framework could increase wheat yield and NUE by improving soil fertility,managing soil nutrient supply and building high-yielding systems.Through combining specific single technologies,a year-round plastic film mulching model in dryland cropping,and an efficient nutrient and water management technique model for irrigated cropping were established,providing benefits in wheat yield and NUE.A multi-subject joint innovation technology model was also developed to serve as a bridge to transform agricultural technology into agricultural productivity.In the future,a sustainable increase in wheat production in China will require innovation in key technologies and technology models,the development of new technology promotion models,and the combined efforts of the whole community.展开更多
The paper firstly reviewed industrial plantation development in the main forestry countries worldwide, and then summarized the state and trend of the R & D of industrial plantation in foreign countries in terms of...The paper firstly reviewed industrial plantation development in the main forestry countries worldwide, and then summarized the state and trend of the R & D of industrial plantation in foreign countries in terms of genetic improvement, breeding techniques, site evaluation techniques, density control techniques, long-term productivity maintenance techniques and diseases and pests control techniques. In the meantime, the three management models employed in industrial plantations abroad was introduced, i.e. intensive management, oriented management, and enterprise-based management and integration of forest, industry and paper-making, based on which four suggestions were proposed through summarizing the successful experiences in industrial plantation development abroad to facilitate the development of fast-growing and high-yield plantation in China from the technical perspective.展开更多
文摘Water manufactured is the primary waste source in the oil and gas industry. Because of the rising amount of waste worldwide, the environmental effect of wastewater has become a primary environmental concern in recent years. The vast amounts involved have resulted in considerable costs to the industry for handling produced water. This research explains the wide variety of choices for water management. This research’s first phase was water minimization techniques, consisting of three different applications made in three different wells (Well 1, Well 2 and Well 3) and water recycling and reuse by two techniques. In Well 1, Mechanical shut-off technique was applied using through tubing bridge plug and 5 m cement dumped above it to isolate the watered out zone;as per water oil ration plot the water cut is decreased from 100% to 4% and the production is increased from 0 to 400 bcpd. In Well 2, Chemical shut-off technique using a polymer called Brightwater has been used to block channeling through high permeability intervals after PLT log detected it, and the result was brilliant, the water cut decreased from 60% to 25%, also the oil production increase from 500 to 3000 bopd. In Well 3, downhole separator installed in it using workover (unfortunately, this technique is not applied in middle east till the moment so this application is taken from an oil field in Canada)and the result was perfect, the water cut decreased from 70% to 28%, also the oil production increase from 44 to 100 bopd. This study tried to clarify and compare the most widely used water management techniques using one of the Western Desert (W.D.) (enhanced for oil recovery, constructed wetland).
基金supported by Basic Science Research Program through the National Research Foundation of Korea(NRF)funded by the Ministry of Education(NRF-2021R1A6A1A03039493).
文摘Mobile networks possess significant information and thus are considered a gold mine for the researcher’s community.The call detail records(CDR)of a mobile network are used to identify the network’s efficacy and the mobile user’s behavior.It is evident from the recent literature that cyber-physical systems(CPS)were used in the analytics and modeling of telecom data.In addition,CPS is used to provide valuable services in smart cities.In general,a typical telecom company hasmillions of subscribers and thus generatesmassive amounts of data.From this aspect,data storage,analysis,and processing are the key concerns.To solve these issues,herein we propose a multilevel cyber-physical social system(CPSS)for the analysis and modeling of large internet data.Our proposed multilevel system has three levels and each level has a specific functionality.Initially,raw Call Detail Data(CDR)was collected at the first level.Herein,the data preprocessing,cleaning,and error removal operations were performed.In the second level,data processing,cleaning,reduction,integration,processing,and storage were performed.Herein,suggested internet activity record measures were applied.Our proposed system initially constructs a graph and then performs network analysis.Thus proposed CPSS system accurately identifies different areas of internet peak usage in a city(Milan city).Our research is helpful for the network operators to plan effective network configuration,management,and optimization of resources.
文摘Recent progresses in efficient management of nitrogen fertilizers for flooded rice in relation to nitrogen transformations in flooded soil were reviewed.Considerable progress has been achieved in the investigation on the mechanism of ammonia loss and the factors affecting it .However,little progress has been obtained in the investigations on nitrification-denitrification loss owing to the lack of method for estimating the fluxes of gaseous N products.Thus,so far the management practices developed or under investigation primarily for reducing ammonia loss are feasible or promising,while those for reducing nitrification-denitrification loss seem obscure,except the point deep placement. In addition,it was emphasized that the prediction of soil N supply and the recommendation of the optimal rate of N application based on it are only semi-quantitative.The priorities in research for improving the prediction are indicated.
文摘Facing the opportunities and challenges of China’s en try into WTO, logistics enterprises take BPR as an important way to improve the core competence.But modern logistics is a systematic engineering and its require ments are the standardization and normalization for enhancing the Chinese enterp rises’ level of logistic activities.This paper reveal the importance of manageme nt technique,information technique and business model in enterprise’s BPR throug h the positive analysis for business process of the third party logistics as a new system after reengineering businees process. Reorganization of marketing target. The characters of business procedure after N ew Sunshine recomposed include: "the last mile " service systems of logistics; s etting up HUB to control many end-points in big and middle cities, setting up s ingle-points in small cities, the small parts acting delivering system which st yle of "assembly and allot" are made of in. Reorganization of business model. The New Sunshine reorganized has three aspects of business model which set up: HUB, end-point and single-point. Reorganization of business process.The mainly business process of restructure Ne w Sunshine include : standard quote declaring prices to all attendants; on line, timely and exactly declaring prices; The net contract of B2C work on line; Tran smit to attendant; Logistice operating; feedback the working information; User t rack goods condition; Settling information; paying and so on, the different busi ness can separate into kinds of right corresponding to the business process, suc h as the picture of distributing parcel, ordering, moving, picking, transporting , delivering, information, inquiring and settling. Set up standard systems. Aims to execute standard management is to make distribu te and logistics for norm and standard, according to the resources share tog ether with the progresses especially and base on reducing the necessary expenses to reduce the living expenses, while low cost and effectively to ensure the goo d service for satisfy the present and potential needs of the customers.
文摘A cross-sectional study of 150 purposively selected multiple livestock species farmers was conducted in Central Uganda aimed at distinguishing between mixed and integrated livestock systems. Performance and operational-based challenges misconstrued to cause incorrect comparison between the two systems were considered. Ten multiple-livestock species system with five ruminant species-based and five monogastric species-based combinations were categorised. Poultry, pig, fish, goats and sheep kept in both the 3 and 4-species combinations were considered. Over 80% of the families are male dominated, smallholder and occupying > 1.0 Ha of land. Exotic and crossbred breeds were adopted away from less productive and noncommercial local species. Mixed monogastric-fish systems with monogastric species dominated (P 1000) stock per farm. Stalls dominate pig management systems with 15% of the farmers upgraded to commercial level with (>50) stock per farm. Ineffective livestock policies contribute to inefficient performance of 55% of livestock farmers. In conclusion, mixed livestock systems should be upgraded to integrated livestock systems with input resource synergy for improved production and sustainability.
文摘With the development of the times and the improvement of the economic level,the people’s ideological consciousness has gradually changed,driven by the scientific concept of development and the concept of sustainable development,the people have been able to realize that,traditionally,the extensive economic model has led to more serious damage to the environment,and caused a certain degree of resource waste,but also endangered human health.As a result,the concept of healthy living has received more and more widespread attention.The construction industry as an important pillar of China’s economic development,but also the implementation of the concept of sustainable development in China is one of the key points for the implementation of green construction of large public buildings,it is necessary to strengthen the management of technology,so in this paper,will be the main green construction of large public buildings management technology analysis work.
文摘In recent years, the rapid development of social economy has promoted the reform and innovation of different industries in our country. While enterprises are facing the ever-changing trend of market changes, economists are gradually showing their role in human resources management. I mainly analyzed the concept of human resources management of economists, and discussed the value of economists and human resources management in professional and technical management and management strategies, hoping to provide reference for continuously improving the effectiveness of human resources management of economists.
文摘This research delves into the complicated issues associated with demolition,renovation,and construction of buildings to find viable,sustainable practices that will relieve some strain on nature.Identifying major components like governmental policies,cooperative work of stakeholders,assimilation of technology,and the possible transformative capacity brought by Building Information Modeling(BIM),this research attempts to unveil how a more ecologically mindful construction industry can be achieved.The methodology used in this research has a multi-dimensional approach that is aimed at thoroughly understanding and clearing the challenges within the construction industry.The strengths like government support,stakeholder involvement,technological innovations,and adoption of BIM assist in building a strong base for sustainability.The research identified opportunities for technological advancements,special solutions,and government incentives.Technological advancement is a constantly changing environment,which gives the building sector an opportunity to adapt and enhance its recycling strategies.Customized solutions highlight the fact that such"place-based"strategies are needed because different urban,suburban,and rural landscapes present distinct challenges.Most property owners would be convinced to swap their regular buildings with sustainable building techniques through incentives from the government,such as tax benefits and subsidies.Furthermore,regulatory compliance issues and resistance to change cement the fact that societies need not only solid guidelines but also constant efforts to redefine standards in every industry.Effective negotiation between stakeholders becomes essential.Therefore,it can be stated that the findings give weight as catalysts of change in terms of action within the construction industry.
基金financially support by Shaanxi Province Key R&D Program of China(2024NC2-GJHX-28)National Key R&D Program of China(2023YFD1900400)National Natural Science Foundation of China(31902120).
文摘In the face of rising food demand and declining wheat acreage,improving wheat yield and resource use efficiency will be key to sustainable wheat production.To address the challenge,this study proposed a framework for wheat green production,quantified the benefits of key technologies and technology models based on the framework in wheat yield and nitrogen use efficiency(NUE),and developed a new model for the promotion of technology.The framework included soil,root layer and canopy systems,where the adoption of single technologies based on the framework could increase wheat yield and NUE by improving soil fertility,managing soil nutrient supply and building high-yielding systems.Through combining specific single technologies,a year-round plastic film mulching model in dryland cropping,and an efficient nutrient and water management technique model for irrigated cropping were established,providing benefits in wheat yield and NUE.A multi-subject joint innovation technology model was also developed to serve as a bridge to transform agricultural technology into agricultural productivity.In the future,a sustainable increase in wheat production in China will require innovation in key technologies and technology models,the development of new technology promotion models,and the combined efforts of the whole community.
基金supported by the project of "Research on Comprehensive Management Techniques for Fast-growing and High-yield Plantation Ecosystem" under "Eleventh Five-year" Plan for National Science and Technology Support (2006BAD24B1003)
文摘The paper firstly reviewed industrial plantation development in the main forestry countries worldwide, and then summarized the state and trend of the R & D of industrial plantation in foreign countries in terms of genetic improvement, breeding techniques, site evaluation techniques, density control techniques, long-term productivity maintenance techniques and diseases and pests control techniques. In the meantime, the three management models employed in industrial plantations abroad was introduced, i.e. intensive management, oriented management, and enterprise-based management and integration of forest, industry and paper-making, based on which four suggestions were proposed through summarizing the successful experiences in industrial plantation development abroad to facilitate the development of fast-growing and high-yield plantation in China from the technical perspective.
