Developing deep fragmented soft coalbed methane(CBM)can significantly enhance domestic natural gas supplies,reduce reliance on imported energy,and bolster national energy security.This manuscript provides a comprehens...Developing deep fragmented soft coalbed methane(CBM)can significantly enhance domestic natural gas supplies,reduce reliance on imported energy,and bolster national energy security.This manuscript provides a comprehensive review of commonly employed coalbed methane extraction technologies.It then delves into several critical issues in the current stage of CBM exploration and development in China,including the compatibility of existing technologies with CBM reservoirs,the characteristics and occurrence states of CBM reservoirs,critical desorption pressure,and gas generation mechanisms.Our research indicates that current CBM exploration and development technologies in China have reached an internationally advanced level,yet the industry is facing unprecedented challenges.Despite progress in low-permeability,high-value coal seams,significant breakthroughs have not been achieved in exploring other types of coal seams.For different coal reservoirs,integrated extraction technologies have been developed,such as surface pre-depressurisation and segmented hydraulic fracturing of coal seam roof strata.Additionally,techniques like large-scale volume fracturing in horizontal wells have been established,significantly enhancing reservoir stimulation effects and coalbed methane recovery rates.However,all of these technologies are fundamentally based on permeation.These technologies lack direct methods aimed at enhancing the diffusion rate of CBM,thereby failing to fully reflect the unique characteristics of CBM.Current CBM exploration and development theories and technologies are not universally applicable to all coal seams.They do not adequately account for the predominantly adsorbed state of CBM,and the complex and variable gas generation mechanisms further constrain CBM development in China.Finally,continuous exploration of new deep CBM exploration technologies is necessary.Integrating more effective reservoir stimulation technologies is essential to enhance technical adaptability concerning CBM reservoir characteristics,gas occurrence states,and gas generation mechanisms,ultimately achieving efficient CBM development.We conclude that while China possesses a substantial foundation of deep fractured CBM resources,industry development is constrained and requires continuous exploration of new CBM exploration and development technologies to utilize these resources effectively.展开更多
The publisher regrets that the article type for this publication was incorrectly labeled as a Research Article.The correct designation should be Review Article.This correction does not affect the content or conclusion...The publisher regrets that the article type for this publication was incorrectly labeled as a Research Article.The correct designation should be Review Article.This correction does not affect the content or conclusions of the article.The publisher apologizes for any inconvenience caused.展开更多
Based on the technological demands for significantly enhancing oil recovery and long-term CO_(2)sequestration in the lacustrine oil reservoirs of China,this study systematically reviews the progress and practices of C...Based on the technological demands for significantly enhancing oil recovery and long-term CO_(2)sequestration in the lacustrine oil reservoirs of China,this study systematically reviews the progress and practices of CO_(2)flooding and storage technologies in recent years.It addresses the key technological needs and challenges faced in scaling up the application of CO_(2)flooding and storage to mature,developed oil fields,and analyzes future development directions.During the pilot test phase(2006-2019),continuous development and application practices led to the establishment of the first-generation CO_(2)flooding and storage technology system for lacustrine reservoirs.In the industrialization phase(since 2020),significant advances and insights have been achieved in terms of confined phase behavior,storage mechanisms,reservoir engineering,sweep control,engineering process and storage monitoring,enabling the maturation of the second-generation CO_(2)flooding and storage theories and technologies to effectively support the demonstration projects of Carbon Capture,Utilization and Storage(CCUS).To overcome key technical issues such as low miscibility,difficulty in gas channeling control,high process requirements,limited application scenarios,and coordination challenges in CO_(2)flooding and storage,and to support the large-scale application of CCUS,it is necessary to strengthen research on key technologies for establishing the third-generation CO_(2)flooding and storage technological system incorporating miscibility enhancement and transformation,comprehensive regulation for sweep enhancement,whole-process engineering techniques and equipment,long-term storage monitoring safety,and synergistic optimization of flooding and storage.展开更多
In this paper,the definition,connotation,and internal relationship of mountains,rivers,forests,farmlands,lakes,and grasslands in China are elaborated,and the current situation of ecological restoration projects for mo...In this paper,the definition,connotation,and internal relationship of mountains,rivers,forests,farmlands,lakes,and grasslands in China are elaborated,and the current situation of ecological restoration projects for mountains,rivers,forests,farmlands,lakes,and grasslands was introduced.Moreover,the problems that have arisen in the specific implementation process of pilot projects were analyzed,such as unclear target positioning,inaccurate analysis of ecological problems,insufficient engineering design systematicness,weak operability of evaluation standards,and weak coordination in engineering management.The development direction and major needs for the protection and restoration of mountains,rivers,forests,farmlands,lakes,and grasslands in the future have been proposed from four aspects:theoretical research,engineering design,effect evaluation,and monitoring and supervision.展开更多
By reviewing the development history of stimulation techniques for deep/ultra-deep oil and gas reservoirs,the new progress in this field in China and abroad has been summed up,including deeper understanding on formati...By reviewing the development history of stimulation techniques for deep/ultra-deep oil and gas reservoirs,the new progress in this field in China and abroad has been summed up,including deeper understanding on formation mechanisms of fracture network in deep/ultra-deep oil and gas reservoir,performance improvement of fracturing fluid materials,fine stratification of ultra-deep vertical wells,and mature staged multi-cluster fracturing technique for ultra-deep and highly deviated wells/horizontal wells.In light of the exploration and development trend of ultra-deep oil and gas reservoirs in China,the requirements and technical difficulties in ultra-deep oil and gas reservoir stimulation are discussed:(1)The research and application of integrated geological engineering technology is difficult.(2)The requirements on fracturing materials for stimulation are high.(3)It is difficult to further improve the production in vertical profile of the ultra-deep and hugely thick reservoirs.(4)The requirements on tools and supporting high-pressure equipment on the ground for stimulation are high.(5)It is difficult to achieve efficient stimulation of ultra-deep,high-temperature and high-pressure wells.(6)It is difficult to monitor directly the reservoir stimulation and evaluate the stimulation effect accurately after stimulation.In line with the complex geological characteristics of ultra-deep oil and gas reservoirs in China,seven technical development directions are proposed:(1)To establish systematic new techniques for basic research and evaluation experiments;(2)to strengthen geological research and improve the operational mechanism of integrating geological research and engineering operation;(3)to develop high-efficiency fracturing materials for ultra-deep reservoirs;(4)to research separated layer fracturing technology for ultra-deep and hugely thick reservoirs;(5)to explore fracture-control stimulation technology for ultra-deep horizontal well;(6)to develop direct monitoring technology for hydraulic fractures in ultra-deep oil and gas reservoirs;(7)to develop downhole fracturing tools with high temperature and high pressure tolerance and supporting wellhead equipment able to withstand high pressure.展开更多
In this paper, we conduct research on the development direction of traditional broadcast television movie media under background of new media and lnternet. In recent years, with the computer technology network communi...In this paper, we conduct research on the development direction of traditional broadcast television movie media under background of new media and lnternet. In recent years, with the computer technology network communication technology and constant innovation rapid development of digital technology, digital new media got rapid development. Under the digital new media industry has gradually become the core industry of 21 st century knowledge economy and the new economic growth point. But there are still some problems in the digital of new media development. How to treat these problems to take effective countermeasures is vital to healthy development of the new media. Our research proposes corresponding guidance and the perspective on the development orientation which acts as the paradigm and the guideline.展开更多
According to the specific requirements and actual conditions of industrial development at this stage, in-depth research and exploration on its development direction and decision-making from the perspective of economic...According to the specific requirements and actual conditions of industrial development at this stage, in-depth research and exploration on its development direction and decision-making from the perspective of economics will have great help to the potential development capability of the industry. It can achieve the scientific and effective development goal step by step. And it can suit the changing development form at this stage, and effectively reduce the problems generated by enterprises under actual conditions. Therefore, when the research content related to the industry is refined, we must stand in the perspective of economics at an early stage. Fully consider its corresponding development direction and various decisions. And then we can effectively expand the development ideas of the enterprise, and can make the enterprise scale and overall development level be expanded and improved. Industry development with the accumulation of time, more and more experience in practice, can effectively reduce the scope of influence of related issues. Therefore, from the perspective of industrial economics, this paper analyzes and studies the development direction and decision-making of the industry. It also provides a reference for the future scholars in this research area, so that the development effect of the industry in the future practice can be better.展开更多
The development of society is closely related to peoples needs. With the promotion of modern society, peoples requirements for environmental protection, energy saving, safety and other performance of things are gettin...The development of society is closely related to peoples needs. With the promotion of modern society, peoples requirements for environmental protection, energy saving, safety and other performance of things are getting higher and higher. In recent years, Chinas construction industry has developed rapidly, but due to the quality of buildings and geological disasters, the phenomenon of building collapse is common. Therefore, how to improve the seismic performance of the prefabricated structure has become a current research hotspot. This paper takes prefabricated structure as the starting point, explains its concept and introduces related categories, then summarizes the seismic performance research process of prefabricated structure, and finally illustrates the current research direction and considerations of seismic performance. The full text aims to provide suggestions for the development of the prefabricated structure through a comprehensive combing.展开更多
Coal industry has an important position in the domestic energy industry, and coal is the basic energy resources in China. In recent years, China has increased the exploitation of coal. The annual consumption of coal i...Coal industry has an important position in the domestic energy industry, and coal is the basic energy resources in China. In recent years, China has increased the exploitation of coal. The annual consumption of coal is increasing year by year, so coal mining has become the focus of the coal industry. Intelligent coal mine and intelligent mining have become the focus of research of coal mine companies. It is necessary to increase research on the current intelligent coal mine and intelligent mining technology, so as to realize intelligent mining, intelligent development, improve the efficiency of coal mining, and bring more operating benefits for coal mining companies.展开更多
In many things, in terms of influence and value, no technology can be compared with electrical engineering and its automation technology. From the emergence of technology to its wide application, it has experienced se...In many things, in terms of influence and value, no technology can be compared with electrical engineering and its automation technology. From the emergence of technology to its wide application, it has experienced several years. With the development of time and science, this technology has become more and more mature and has made great breakthroughs in various fields. It is electrical engineering and its automation technology that promotes the society to enter a new era, and it also improves the level of electrical engineering automation. Electrical engineering automation technology has become the driving force of productivity development. In the future, we need to innovate on the original basis to ensure that the technology has outstanding advantages and is more closely related to electrical engineering. Next, the paper discusses the development direction of electrical engineering and automation.展开更多
Under the new environment, the development of mechanical design and manufacturing has been a good boost, and its technology integration provides a diversified development model for mechanical design and manufacturing....Under the new environment, the development of mechanical design and manufacturing has been a good boost, and its technology integration provides a diversified development model for mechanical design and manufacturing. Research purpose of this article by defining mechanical design and manufacture of current situation and existing problems, analysis of mechanical design and manufacture of new environment characteristics, to explore the mechanical design and manufacturing of the future development direction and specific path, make the whole process of mechanical manufacturing industry upgrading, constantly to meet the requirements of information age and industrial development.展开更多
The implementation of green energy transformation,clean energy power replacement and supply,and the construction of the new power system are the primary driving forces for achieving strategic goals of carbon peak and ...The implementation of green energy transformation,clean energy power replacement and supply,and the construction of the new power system are the primary driving forces for achieving strategic goals of carbon peak and carbon neutrality in China.The construction of the new power system is in a critical period of initiation and development,and it is necessary to clarify the direction of future development,clarify the current technical challenges and key technical issues,and determine the key technical tasks for the future.In this context,this study analyzes the development direction,technical issues,and key construction tasks of the new power system.Firstly,the development challenges of the new power system are analyzed from two aspects:the current si-tuation of flexible regulation resources and the safety issues related to frequency and voltage.Secondly,the direction of technological innovation is analyzed from four aspects:the multiple power sources complementarity technology,power source and power grid collaborative technology,power supply and load interaction tech-nology,and flexible and intelligent control technology.On this basis,three major technical issues are sorted out.Finally,the key construction tasks of the basic theory,flexible power generation,and collaborative control are detailed.展开更多
This study proposes a framework for the concept of“new quality productive forces”in the ice and snow economy(ISE)as a strategic response to global climate change and the demands of technological and industrial trans...This study proposes a framework for the concept of“new quality productive forces”in the ice and snow economy(ISE)as a strategic response to global climate change and the demands of technological and industrial transformation for high-quality development.These new quality productive forces in the ISE have developed alongside the zonal distribution of natural resources,strictly adhere to ecological principles,and integrate value transformation mechanisms specific to ice and snow resources.Their development is projected to generate multiple benefits across ecological,economic,and social dimensions.The new quality productive forces in the ISE are characterized by technology-driven resource development,synergistic integration across the entire ice and snow industry value chain,and a focus on high-quality,green growth.Grounded in geography and economics,the new quality productive forces in the ISE link scientific innovation,the reallocation of productive factors,and industrial upgrading within the context of resource constraints.Furthermore,they expand the growth potential of the ISE by fostering new production relations through digital,intelligent,and green integration,while advancing low-carbon,sustainable development under the guiding principle that“ice and snow landscapes are also mountains of gold and silver.”For China's ISE,these new quality productive forces emphasize rigorous resource protection,balanced human-environment relationships,a resilient integrated supply chain framework,and an efficient“dual circulation”economic model.Practical strategies include integrating production factors,optimizing spatial resource allocation,fostering industrial synergy,and adapting production relations,all aimed at advancing the sustainable and high-quality development of China's ISE.展开更多
Hydropower is the second largest conventional energy resource in China.It is a renewable energy with mature technology,flexible operation,cleanliness and low carbon.A hydropower project has flood control,a water suppl...Hydropower is the second largest conventional energy resource in China.It is a renewable energy with mature technology,flexible operation,cleanliness and low carbon.A hydropower project has flood control,a water supply,navigation,irrigation and other comprehensive utilization functions.The new era in China is guided by the new energy-security strategy of‘four revolutions and one cooperation’and the new development concept of‘innovation,coordination,green development,openness and sharing’.According to the dual nature of water and electricity,this paper deepens the basic understanding of hydropower from the experience of the world,the difficult problems of hydropower in China and the long-term development of hydropower enterprises.The future direction of hydropower development is explored from the following aspects:high-quality development of follow-up hydropower projects,innovative utilization of existing hydropower value,creative pursuit of hydropower-benefit growth and high-level promotion of hydropower international cooperation.展开更多
With the rapid development of electronic commerce, supply chain management is facing more and more new challenges. Therefore, it is particularly important to study the development of clear direction of supply chain. H...With the rapid development of electronic commerce, supply chain management is facing more and more new challenges. Therefore, it is particularly important to study the development of clear direction of supply chain. However, the supply chain is composed of different interest subjects, each subject in order to achieve the maximization of their own interests and adopt different measures, is a complex, huge system, has brought the huge challenge to the supply chain management. In this paper, the research on Supply Chain Management in the current situation, characteristics and the modem supply chain management are summarized, and combined with new challenges of supply chain management to predict future research direction is the development of supply chain management, in order to make the supply chain management to the greatest extent satisfy the consumer e-commerce mode increasingly popular.展开更多
In this paper, we conduct research on modem music composition development direction under the digital and computer background. We can hear the music work, at ordinary times is the musician and sound engineer through t...In this paper, we conduct research on modem music composition development direction under the digital and computer background. We can hear the music work, at ordinary times is the musician and sound engineer through three different stages of product created by mutual cooperation. The development of computer music has impact to the music every aspect of life, including various music creation process, cause the changes of some design principles. This change may be denied the traditional, also may be denied the traditional that is on the development of traditional principles. We integrate the concepts and principles of the digital perspective to propose our methodology on issues of computer music develooment that holds vital siznificance and meaning.展开更多
1.Implement energy saving and emission reduction Adopt the applicable advanced new cathode structure aluminium electricity,aluminium oxide energy saving and aluminum processing technology to carry out technical transf...1.Implement energy saving and emission reduction Adopt the applicable advanced new cathode structure aluminium electricity,aluminium oxide energy saving and aluminum processing technology to carry out technical transformation of existing processing capacity of electrolytic aluminium,aluminium oxide。展开更多
This paper was summarized the research status and the development tendency of post-harvest component detection and preservation techniques of Nanfeng citrus in China, also analyzed the characteristics of various techn...This paper was summarized the research status and the development tendency of post-harvest component detection and preservation techniques of Nanfeng citrus in China, also analyzed the characteristics of various techniques, and proposed the developmental direction of novel techniques for post-harvest component detection and preservation of Nanfeng citrus.展开更多
基金supported by the National Natural Science Foundation of China(52074045,52274074)the Science Fund for Distinguished Young Scholars of Chongqing(CSTB2022NSCQ-JQX0028).
文摘Developing deep fragmented soft coalbed methane(CBM)can significantly enhance domestic natural gas supplies,reduce reliance on imported energy,and bolster national energy security.This manuscript provides a comprehensive review of commonly employed coalbed methane extraction technologies.It then delves into several critical issues in the current stage of CBM exploration and development in China,including the compatibility of existing technologies with CBM reservoirs,the characteristics and occurrence states of CBM reservoirs,critical desorption pressure,and gas generation mechanisms.Our research indicates that current CBM exploration and development technologies in China have reached an internationally advanced level,yet the industry is facing unprecedented challenges.Despite progress in low-permeability,high-value coal seams,significant breakthroughs have not been achieved in exploring other types of coal seams.For different coal reservoirs,integrated extraction technologies have been developed,such as surface pre-depressurisation and segmented hydraulic fracturing of coal seam roof strata.Additionally,techniques like large-scale volume fracturing in horizontal wells have been established,significantly enhancing reservoir stimulation effects and coalbed methane recovery rates.However,all of these technologies are fundamentally based on permeation.These technologies lack direct methods aimed at enhancing the diffusion rate of CBM,thereby failing to fully reflect the unique characteristics of CBM.Current CBM exploration and development theories and technologies are not universally applicable to all coal seams.They do not adequately account for the predominantly adsorbed state of CBM,and the complex and variable gas generation mechanisms further constrain CBM development in China.Finally,continuous exploration of new deep CBM exploration technologies is necessary.Integrating more effective reservoir stimulation technologies is essential to enhance technical adaptability concerning CBM reservoir characteristics,gas occurrence states,and gas generation mechanisms,ultimately achieving efficient CBM development.We conclude that while China possesses a substantial foundation of deep fractured CBM resources,industry development is constrained and requires continuous exploration of new CBM exploration and development technologies to utilize these resources effectively.
文摘The publisher regrets that the article type for this publication was incorrectly labeled as a Research Article.The correct designation should be Review Article.This correction does not affect the content or conclusions of the article.The publisher apologizes for any inconvenience caused.
基金Supported by the China National Key R&D Program(2023YFF0614100)National Science and Technology Major Project of China(2024ZD14066)+1 种基金Major Project of PetroChina Company Limited(2021ZZ01)Key R&D Project of Xinjiang Uygur Autonomous Region of China(2024B03001).
文摘Based on the technological demands for significantly enhancing oil recovery and long-term CO_(2)sequestration in the lacustrine oil reservoirs of China,this study systematically reviews the progress and practices of CO_(2)flooding and storage technologies in recent years.It addresses the key technological needs and challenges faced in scaling up the application of CO_(2)flooding and storage to mature,developed oil fields,and analyzes future development directions.During the pilot test phase(2006-2019),continuous development and application practices led to the establishment of the first-generation CO_(2)flooding and storage technology system for lacustrine reservoirs.In the industrialization phase(since 2020),significant advances and insights have been achieved in terms of confined phase behavior,storage mechanisms,reservoir engineering,sweep control,engineering process and storage monitoring,enabling the maturation of the second-generation CO_(2)flooding and storage theories and technologies to effectively support the demonstration projects of Carbon Capture,Utilization and Storage(CCUS).To overcome key technical issues such as low miscibility,difficulty in gas channeling control,high process requirements,limited application scenarios,and coordination challenges in CO_(2)flooding and storage,and to support the large-scale application of CCUS,it is necessary to strengthen research on key technologies for establishing the third-generation CO_(2)flooding and storage technological system incorporating miscibility enhancement and transformation,comprehensive regulation for sweep enhancement,whole-process engineering techniques and equipment,long-term storage monitoring safety,and synergistic optimization of flooding and storage.
基金Basic Research Business Funding Project for Public Welfare Research Institutes in the Autonomous Region in 2022(kyys202201).
文摘In this paper,the definition,connotation,and internal relationship of mountains,rivers,forests,farmlands,lakes,and grasslands in China are elaborated,and the current situation of ecological restoration projects for mountains,rivers,forests,farmlands,lakes,and grasslands was introduced.Moreover,the problems that have arisen in the specific implementation process of pilot projects were analyzed,such as unclear target positioning,inaccurate analysis of ecological problems,insufficient engineering design systematicness,weak operability of evaluation standards,and weak coordination in engineering management.The development direction and major needs for the protection and restoration of mountains,rivers,forests,farmlands,lakes,and grasslands in the future have been proposed from four aspects:theoretical research,engineering design,effect evaluation,and monitoring and supervision.
基金Supported by the China National Science and Technology Major Project(2016ZX05023)Petro China Science and Technology Major Project(2018E-1809)。
文摘By reviewing the development history of stimulation techniques for deep/ultra-deep oil and gas reservoirs,the new progress in this field in China and abroad has been summed up,including deeper understanding on formation mechanisms of fracture network in deep/ultra-deep oil and gas reservoir,performance improvement of fracturing fluid materials,fine stratification of ultra-deep vertical wells,and mature staged multi-cluster fracturing technique for ultra-deep and highly deviated wells/horizontal wells.In light of the exploration and development trend of ultra-deep oil and gas reservoirs in China,the requirements and technical difficulties in ultra-deep oil and gas reservoir stimulation are discussed:(1)The research and application of integrated geological engineering technology is difficult.(2)The requirements on fracturing materials for stimulation are high.(3)It is difficult to further improve the production in vertical profile of the ultra-deep and hugely thick reservoirs.(4)The requirements on tools and supporting high-pressure equipment on the ground for stimulation are high.(5)It is difficult to achieve efficient stimulation of ultra-deep,high-temperature and high-pressure wells.(6)It is difficult to monitor directly the reservoir stimulation and evaluate the stimulation effect accurately after stimulation.In line with the complex geological characteristics of ultra-deep oil and gas reservoirs in China,seven technical development directions are proposed:(1)To establish systematic new techniques for basic research and evaluation experiments;(2)to strengthen geological research and improve the operational mechanism of integrating geological research and engineering operation;(3)to develop high-efficiency fracturing materials for ultra-deep reservoirs;(4)to research separated layer fracturing technology for ultra-deep and hugely thick reservoirs;(5)to explore fracture-control stimulation technology for ultra-deep horizontal well;(6)to develop direct monitoring technology for hydraulic fractures in ultra-deep oil and gas reservoirs;(7)to develop downhole fracturing tools with high temperature and high pressure tolerance and supporting wellhead equipment able to withstand high pressure.
文摘In this paper, we conduct research on the development direction of traditional broadcast television movie media under background of new media and lnternet. In recent years, with the computer technology network communication technology and constant innovation rapid development of digital technology, digital new media got rapid development. Under the digital new media industry has gradually become the core industry of 21 st century knowledge economy and the new economic growth point. But there are still some problems in the digital of new media development. How to treat these problems to take effective countermeasures is vital to healthy development of the new media. Our research proposes corresponding guidance and the perspective on the development orientation which acts as the paradigm and the guideline.
文摘According to the specific requirements and actual conditions of industrial development at this stage, in-depth research and exploration on its development direction and decision-making from the perspective of economics will have great help to the potential development capability of the industry. It can achieve the scientific and effective development goal step by step. And it can suit the changing development form at this stage, and effectively reduce the problems generated by enterprises under actual conditions. Therefore, when the research content related to the industry is refined, we must stand in the perspective of economics at an early stage. Fully consider its corresponding development direction and various decisions. And then we can effectively expand the development ideas of the enterprise, and can make the enterprise scale and overall development level be expanded and improved. Industry development with the accumulation of time, more and more experience in practice, can effectively reduce the scope of influence of related issues. Therefore, from the perspective of industrial economics, this paper analyzes and studies the development direction and decision-making of the industry. It also provides a reference for the future scholars in this research area, so that the development effect of the industry in the future practice can be better.
文摘The development of society is closely related to peoples needs. With the promotion of modern society, peoples requirements for environmental protection, energy saving, safety and other performance of things are getting higher and higher. In recent years, Chinas construction industry has developed rapidly, but due to the quality of buildings and geological disasters, the phenomenon of building collapse is common. Therefore, how to improve the seismic performance of the prefabricated structure has become a current research hotspot. This paper takes prefabricated structure as the starting point, explains its concept and introduces related categories, then summarizes the seismic performance research process of prefabricated structure, and finally illustrates the current research direction and considerations of seismic performance. The full text aims to provide suggestions for the development of the prefabricated structure through a comprehensive combing.
文摘Coal industry has an important position in the domestic energy industry, and coal is the basic energy resources in China. In recent years, China has increased the exploitation of coal. The annual consumption of coal is increasing year by year, so coal mining has become the focus of the coal industry. Intelligent coal mine and intelligent mining have become the focus of research of coal mine companies. It is necessary to increase research on the current intelligent coal mine and intelligent mining technology, so as to realize intelligent mining, intelligent development, improve the efficiency of coal mining, and bring more operating benefits for coal mining companies.
文摘In many things, in terms of influence and value, no technology can be compared with electrical engineering and its automation technology. From the emergence of technology to its wide application, it has experienced several years. With the development of time and science, this technology has become more and more mature and has made great breakthroughs in various fields. It is electrical engineering and its automation technology that promotes the society to enter a new era, and it also improves the level of electrical engineering automation. Electrical engineering automation technology has become the driving force of productivity development. In the future, we need to innovate on the original basis to ensure that the technology has outstanding advantages and is more closely related to electrical engineering. Next, the paper discusses the development direction of electrical engineering and automation.
文摘Under the new environment, the development of mechanical design and manufacturing has been a good boost, and its technology integration provides a diversified development model for mechanical design and manufacturing. Research purpose of this article by defining mechanical design and manufacture of current situation and existing problems, analysis of mechanical design and manufacture of new environment characteristics, to explore the mechanical design and manufacturing of the future development direction and specific path, make the whole process of mechanical manufacturing industry upgrading, constantly to meet the requirements of information age and industrial development.
基金supported by the China National Postdoctoral Program for Innovative Talents(BX20240135)the China Postdoctoral Science Foundation(2024M751066).
文摘The implementation of green energy transformation,clean energy power replacement and supply,and the construction of the new power system are the primary driving forces for achieving strategic goals of carbon peak and carbon neutrality in China.The construction of the new power system is in a critical period of initiation and development,and it is necessary to clarify the direction of future development,clarify the current technical challenges and key technical issues,and determine the key technical tasks for the future.In this context,this study analyzes the development direction,technical issues,and key construction tasks of the new power system.Firstly,the development challenges of the new power system are analyzed from two aspects:the current si-tuation of flexible regulation resources and the safety issues related to frequency and voltage.Secondly,the direction of technological innovation is analyzed from four aspects:the multiple power sources complementarity technology,power source and power grid collaborative technology,power supply and load interaction tech-nology,and flexible and intelligent control technology.On this basis,three major technical issues are sorted out.Finally,the key construction tasks of the basic theory,flexible power generation,and collaborative control are detailed.
基金The Third Scientific Expedition Project in Xinjiang,No.2022xjkk0905Project Commissioned by the General Administration of Sport of ChinaProject Commissioned by the Ministry of Culture and Tourism of the People’s Republic of China。
文摘This study proposes a framework for the concept of“new quality productive forces”in the ice and snow economy(ISE)as a strategic response to global climate change and the demands of technological and industrial transformation for high-quality development.These new quality productive forces in the ISE have developed alongside the zonal distribution of natural resources,strictly adhere to ecological principles,and integrate value transformation mechanisms specific to ice and snow resources.Their development is projected to generate multiple benefits across ecological,economic,and social dimensions.The new quality productive forces in the ISE are characterized by technology-driven resource development,synergistic integration across the entire ice and snow industry value chain,and a focus on high-quality,green growth.Grounded in geography and economics,the new quality productive forces in the ISE link scientific innovation,the reallocation of productive factors,and industrial upgrading within the context of resource constraints.Furthermore,they expand the growth potential of the ISE by fostering new production relations through digital,intelligent,and green integration,while advancing low-carbon,sustainable development under the guiding principle that“ice and snow landscapes are also mountains of gold and silver.”For China's ISE,these new quality productive forces emphasize rigorous resource protection,balanced human-environment relationships,a resilient integrated supply chain framework,and an efficient“dual circulation”economic model.Practical strategies include integrating production factors,optimizing spatial resource allocation,fostering industrial synergy,and adapting production relations,all aimed at advancing the sustainable and high-quality development of China's ISE.
文摘Hydropower is the second largest conventional energy resource in China.It is a renewable energy with mature technology,flexible operation,cleanliness and low carbon.A hydropower project has flood control,a water supply,navigation,irrigation and other comprehensive utilization functions.The new era in China is guided by the new energy-security strategy of‘four revolutions and one cooperation’and the new development concept of‘innovation,coordination,green development,openness and sharing’.According to the dual nature of water and electricity,this paper deepens the basic understanding of hydropower from the experience of the world,the difficult problems of hydropower in China and the long-term development of hydropower enterprises.The future direction of hydropower development is explored from the following aspects:high-quality development of follow-up hydropower projects,innovative utilization of existing hydropower value,creative pursuit of hydropower-benefit growth and high-level promotion of hydropower international cooperation.
文摘With the rapid development of electronic commerce, supply chain management is facing more and more new challenges. Therefore, it is particularly important to study the development of clear direction of supply chain. However, the supply chain is composed of different interest subjects, each subject in order to achieve the maximization of their own interests and adopt different measures, is a complex, huge system, has brought the huge challenge to the supply chain management. In this paper, the research on Supply Chain Management in the current situation, characteristics and the modem supply chain management are summarized, and combined with new challenges of supply chain management to predict future research direction is the development of supply chain management, in order to make the supply chain management to the greatest extent satisfy the consumer e-commerce mode increasingly popular.
文摘In this paper, we conduct research on modem music composition development direction under the digital and computer background. We can hear the music work, at ordinary times is the musician and sound engineer through three different stages of product created by mutual cooperation. The development of computer music has impact to the music every aspect of life, including various music creation process, cause the changes of some design principles. This change may be denied the traditional, also may be denied the traditional that is on the development of traditional principles. We integrate the concepts and principles of the digital perspective to propose our methodology on issues of computer music develooment that holds vital siznificance and meaning.
文摘1.Implement energy saving and emission reduction Adopt the applicable advanced new cathode structure aluminium electricity,aluminium oxide energy saving and aluminum processing technology to carry out technical transformation of existing processing capacity of electrolytic aluminium,aluminium oxide。
基金Supported by Science and Technology Supporting Project of Science and Technology Department of Jiangxi Province(20142BBF60002)
文摘This paper was summarized the research status and the development tendency of post-harvest component detection and preservation techniques of Nanfeng citrus in China, also analyzed the characteristics of various techniques, and proposed the developmental direction of novel techniques for post-harvest component detection and preservation of Nanfeng citrus.
