With the approaching of large-scale retirement of power lithium-ion batteries(LIBs),their urgent handling is required for environmental protection and resource reutilization.However,at present,substantial spent power ...With the approaching of large-scale retirement of power lithium-ion batteries(LIBs),their urgent handling is required for environmental protection and resource reutilization.However,at present,substantial spent power batteries,especially for those high recovery value cathode materials,have not been greenly,sustainably,and efficiently recycled.Compared to the traditional recovery method for cathode materials with high energy consumption and severe secondary pollution,the direct repair regeneration,as a new type of short-process and efficient treatment methods,has attracted widespread attention.However,it still faces challenges in homogenization repair,electrochemical performance decline,and scaling-up production.To promote the direct regeneration technology development of failed NCM materials,herein we deeply discuss the failure mechanism of nickel-cobalt-manganese(NCM)ternary cathode materials,including element loss,Li/Ni mixing,phase transformation,structural defects,oxygen release,and surface degradation and reconstruction.Based on this,the detailed analysis and summary of the direct regeneration method embracing solid-phase sintering,eutectic salt assistance,solvothermal synthesis,sol-gel process,spray drying,and redox mediation are provided.Further,the upcycling strategy for regeneration materials,such as single-crystallization and high-nickelization,structural regulation,ion doping,and surface engineering,are discussed in deep.Finally,the challenges faced by the direct regeneration and corresponding countermeasures are pointed out.Undoubtedly,this review provides valuable guidance for the efficient and high-value recovery of failed cathode materials.展开更多
The lifespan models of commercial 18650-type lithium ion batteries （nominal capacity of 1150 mA-h） were presented. The lifespan was extrapolated based on this model. The results indicate that the relationship of cap...The lifespan models of commercial 18650-type lithium ion batteries （nominal capacity of 1150 mA-h） were presented. The lifespan was extrapolated based on this model. The results indicate that the relationship of capacity retention and cycle number can be expressed by Gaussian function. The selecting function and optimal precision were verified through actual match detection and a range of alternating current impedance testing. The cycle life model with high precision （〉99%） is beneficial to shortening the orediction time and cutting the prediction cost.展开更多
Military retired cadres were commonly in aged period with high-incidence of diseases. They were troubled with senility, illness, empty-nest syndrome and spouse-bereft, so they were more vulnerable to some psychologica...Military retired cadres were commonly in aged period with high-incidence of diseases. They were troubled with senility, illness, empty-nest syndrome and spouse-bereft, so they were more vulnerable to some psychological problems. Therefore, promoting the mental health service for retired cadres should be highly concerned and more professional service work should be provided to them.展开更多
The nation’s nursing shortage is predicted to worsen, as nurses retire (supply) and more patients have access to care with the full enactment of the Affordable Care Act (demand). Schools of nursing are under continui...The nation’s nursing shortage is predicted to worsen, as nurses retire (supply) and more patients have access to care with the full enactment of the Affordable Care Act (demand). Schools of nursing are under continuing pressure to increase enrollment in entry level nursing programs [1-4]. Nurse educators have been engaged in a variety of creative and innovative projects to increase enrollment with some success. A primary reason for the lack of educational capacity is the shortage of nursing faculty [3-7]. The University of Texas Health Science Center-Houston School of Nursing undertook an innovative project to alleviate the nursing faculty shortage at that school. Working with a retired physician group, physician volunteers were solicited to teach in the laboratory portion of an undergraduate health assessment course. Twenty-two physicians volunteered in the first year in a class that involved forty baccalaureate students in their first-semester. The objectives of the project were twofold: First, to determine the suitability of retired physicians to serve as teachers of baccalaureate nursing students and second, ascertain possible monetary savings by using these physicians. Both of these goals were realized. The students valued the physicians’ enthusiasm, wisdom and experience and the cohort of physicians equaled the equivalent of four nursing faculty members. With an average annual faculty salary of $100,000, savings were significant.展开更多
China has a large base of aging population, and its speed entering the aging society and the growth rate are higher than the average level of the world;however, China's awareness and actions against the population...China has a large base of aging population, and its speed entering the aging society and the growth rate are higher than the average level of the world;however, China's awareness and actions against the population aging are relatively backward. Aging education is an important part of lifelong education;more importantly, it is an important manifestation of education to deal with the aging society. The interest education of retired college teachers is an important component of the aging education and lifelong education;laying a solid foundation for the interest education of retired college teachers would make great contributions to China's aging education. Helping the retired college teachers to realize second advancement and promotion of their enterprises, as well as realizing self-values via the guiding method of interest education is an essential way under the scientific outlook on development. The realization of the interest education of retired college teachers lies in three steps;i.e. intensifying college teachers' acknowledgement of the interest education, building and perfecting the interest education institutions for the college teachers, as well as conducting the interest education of the retired college teachers.展开更多
This article focuses on the development and content of an empowerment programme for staff members at a service centre. An empowerment programme for staffworking with retired volunteers can bring about better knowledge...This article focuses on the development and content of an empowerment programme for staff members at a service centre. An empowerment programme for staffworking with retired volunteers can bring about better knowledge and understanding of elderly persons. This can lead to the target group being ideally managed and understood. The personnel work and interact on a daily basis with retired volunteers. The empowering programme includes matters such as the life circumstances of retired volunteers, the value that retired volunteers have, for the functioning of the service centre, the reasons for utilising retired volunteers, what volunteers expect of staff members, and the motivation of retired volunteers to be involved in the various activities of a service centre for the elderly to benefit the staff members themselves. By presenting and evaluating the empowerment programme, staff members will be able to become functional units in utilising elderly volunteers to the fullest possible in order to benefit the staff members, the retired volunteers, and the community at large.展开更多
The Shanghai government to help return Shanghai retired educated youth to overcome economic and social life in various difficulties introduced many help policy, but due to historical and realistic reasons, retired to ...The Shanghai government to help return Shanghai retired educated youth to overcome economic and social life in various difficulties introduced many help policy, but due to historical and realistic reasons, retired to Shanghai social security of the educated youth is always a trouble, it is difficult to get the perfect solution, it seriously affected the Shanghai social harmonious stability. This article attempts through the government-led level of retirement return Shanghai educated youth with all-sides help to solve their difficulties, through to the educated youth to compensate, to set up the educated youth mutual guarantee fund, broken educated youth and children between the problem of intergenerational transmission of retired return Shanghai social security dilemma of educated youth broken, in order to improve their level of social security in Shanghai.展开更多
From the perspective of the system, the contradiction and conflict between the national system of competitive sports and the socialist market economy is the deep-seated contradiction that leads to the difficult employ...From the perspective of the system, the contradiction and conflict between the national system of competitive sports and the socialist market economy is the deep-seated contradiction that leads to the difficult employment of retired athletes. In addition, the current employment security system for retired athletes still exist in the form of the protection of substantive support, heavy monetary compensation light employment protection, the lack of protection of the system of legislative protection and other issues. Study shows that implementation will help athletes ＂lifelong development＂ concept, to promote the gradual reform of the system of sports training; market oriented, taking employment as the goal, improve the occupation skill training system of retired athletes; social assistance to correctly understand the re employment of retired athletes, establish and improve the security of the re employment of retired athletes the legal system is the focal point in the future to establish and perfect the security system of the re employment of retired athletes.展开更多
Objective: to study the dependent factors of the elderly on the treatment of chronic diseases. Methods: from March 2018 to April 2019 in our hospital, 100 cases of elderly chronic diseases with one or more of three ch...Objective: to study the dependent factors of the elderly on the treatment of chronic diseases. Methods: from March 2018 to April 2019 in our hospital, 100 cases of elderly chronic diseases with one or more of three chronic diseases: hypertension, hyperlipidemia and diabetes were selected from simple random samples. Develop and implement regular surveys to identify dependence on treatment for chronic conditions. Results: before retirees treated for chronic conditions, it was generally more effective that 81% of seniors chose to see a doctor after their health improved or worsened and then decided to stop taking medications. 19% of seniors have no access to medications because their treatment options are too complex. 80% of the elderly have a regular check-up, while 20% are unable to do so because the hospital is too far from the hospital or in a difficult situation. Bottom line: while treatment of chronic conditions in the elderly prior to retirement is generally better than treatment of gender-related conditions, medical perceptions and behaviors still require more attention. To further increase the autonomy of older persons in the fight against chronic sexually transmitted diseases, evidence-based, effective and comprehensive strategies are needed to increase the autonomy of older persons in the fight against chronic sexually transmitted diseases.展开更多
In recent years, under the background of increasingly fierce market competition, the enterprise reform has been deepening, and many bankrupt and closed enterprises have increased the number of early retirees. In order...In recent years, under the background of increasingly fierce market competition, the enterprise reform has been deepening, and many bankrupt and closed enterprises have increased the number of early retirees. In order to improve the future life of enterprise retirees, protect the legitimate rights and interests of enterprise retirees, and realize the stability and development of enterprises, the relevant competent departments must do a good job in the management of personnel files of enterprise retirees, safeguard the legitimate rights and interests of retirees, and provide support for the social harmonious and stable development. Based on this, this paper first summarizes the relevant content of retired cadre personnel file management, and then summarizes the advantages of strengthening retired cadre personnel file management, and finally analyzes the disadvantages of retired cadre personnel file management of the effective ways to strengthen the management of retired cadre personnel file, for the relevant scholars for reference.展开更多
Mary Whitsell,from the United States,retired as a tutor with the University of Nottingham Ningbo China(UNNC)in 2021.Now,she volunteers as an English teacher at the library of Yongcheng Community,in Shounan Subdistrict...Mary Whitsell,from the United States,retired as a tutor with the University of Nottingham Ningbo China(UNNC)in 2021.Now,she volunteers as an English teacher at the library of Yongcheng Community,in Shounan Subdistrict,Yinzhou District,in Ningbo,a city in East China's Zhejiang Province.Whitsell's approach to teaching has inspired her students to be enthusiastic about learning English.The community-based classroom is filled with laughter-and love.For Whitsell,volunteering as a teacher is her way of repaying the kindness she has received since she settled in Ningbo.She hopes to promote warmth and kindness to people in the community.展开更多
Electric Vehicles(EVs),as a low-carbon means of transportation,have promptly become popular worldwide in the past decade.Since the lifespan of batteries is limited,massive of Electric Vehicle Batteries(EVBs)are being ...Electric Vehicles(EVs),as a low-carbon means of transportation,have promptly become popular worldwide in the past decade.Since the lifespan of batteries is limited,massive of Electric Vehicle Batteries(EVBs)are being retired,resulting in a rapid increase in the demand for the recycling of retired EVBs in recent years.However,due to high recycling costs and immature recycling technologies,EV manufacturers are facing significant challenges in recycling retired EVBs.China,as the country with the largest number of EV users in the world,is exploring effective incentive policies for the recycling of retired EVBs.In this context,we developed a system dynamics model to analyze the impact of incentive polices such as,recycling subsidies,technological progress,and carbon trading on the retired EVBs recycling.Results show that:1)recycling subsidies can improve the recycling ratios quickly in the short term,and dynamic subsidies are more efficient than static subsidies;2)the policy of technological advancement can reduce the recovery and cascade utilization cost,thus having a positive impact on battery recycling,but the policy effect has a time-delay;3)the carbon trading policy is unable to promote efficient recycling due to the current low carbon prices;4)dynamic subsidy and technological advancement policies complement each other,therefore,the combination of these two policies is the best way to promote the recycling of retired EVBs and reduce carbon emissions.It is hoped that this study will contribute to the ongoing debate on policies for the industrialization of retired EVBs recycling.展开更多
Helio da Silva,a retired business executive from Brazil,single⁃handedly planted over 41,000 trees in his hometown of Sao Paulo over the last two decades.Flying over the Brazilian metropolis of Sao Paulo,it's tough...Helio da Silva,a retired business executive from Brazil,single⁃handedly planted over 41,000 trees in his hometown of Sao Paulo over the last two decades.Flying over the Brazilian metropolis of Sao Paulo,it's tough to miss the 3.2-kilometer⁃long and 100⁃meter⁃wide green strip of trees wedged between two of the city's busiest roads.展开更多
This paper briefly introduces the maneuverable feature of the slightly inclined geosynchronous orbit (SIGSO) satellites under a new control model degraded from the geosynchronous orbit (GEO) communication satellites w...This paper briefly introduces the maneuverable feature of the slightly inclined geosynchronous orbit (SIGSO) satellites under a new control model degraded from the geosynchronous orbit (GEO) communication satellites which will retire as most of the fuel in these satellites has been consumed. Basing on the transmitting Chinese Area Positioning System (CAPS), the authors, by analyses, indicate that such satellites can make an improvement to CAPS constellation configuration, especially to the PDOP value from simulation. The results show that the use of SIGSO satellites can (1) actualize three-dimensional (3D) navigation and positioning compared with the situation, which, only using GEO satellites, cannot be carried out, and improve navigation and positioning accuracy to some extent; (2) reuse the communication services of these satellites for more years, and GEO communication satellites will be retired at a later time and delay their time to become space debris and reduce their pollution of the space environment, so that valuable space resources are maximally used. As for the use of these satellites in the transmitting positioning system, the authors present some views and suggestions in this work.展开更多
Retired geosynchronous (GEO) communication satellites affect the GEO orbit environment in outer space. According to the new concept of modern design, the authors propose creatively a method of reusing retired GEO comm...Retired geosynchronous (GEO) communication satellites affect the GEO orbit environment in outer space. According to the new concept of modern design, the authors propose creatively a method of reusing retired GEO communication satellites, through adjusting retired GEO satellites to slightly inclined orbit geosynchronous (SIGSO) satellites. After these retired satellites are applied to the navigation and communication system, integrity of navigation system and positioning accuracy of the system is improved. Meanwhile, some transponders on these retired satellites can be used to establish a new satellite communication service, and initiate the study and utilization of the multi-life cycle for retired satellites. Experimental results show that this project has significant social value and can make remarkable economic benefit.展开更多
The overall cross-media risk evaluation of organic pollutants in retired industrial parks is insufficiently recognized.In this study,11 semi-volatile organic compounds(SVOCs)and 27 volatile organic compounds(VOCs)were...The overall cross-media risk evaluation of organic pollutants in retired industrial parks is insufficiently recognized.In this study,11 semi-volatile organic compounds(SVOCs)and 27 volatile organic compounds(VOCs)were measured in 531 soil and groundwater samples taken from a retired industrial park by coast in Zhejiang Province,China.Total petroleum hydrocarbons(TPHs),Di(2-ethylhexyl)phthalate(DEHP),benzene,and ethylbenzene were identified as the critical pollutants in the soil,while TPHs,1,2-dichloropropane(1,2-DCP),toluene,benzo[a]anthracene(BaA),and benzo[b]fluoranthene(BbF)were identified as critical pollutants in the groundwater for exceeding China national standards.The spatial correlation between the concentrations of organic pollutants in soil and groundwater was explored by employing the Geodetector model.Based on the results of spatial interpolation,high-risk hotspots regarding soil and groundwater pollution were identified.Moreover,the possible harm to human health of the critical pollutants were also under evaluation.Among various critical pollutants,benzene,ethylbenzene,and DEHP in soil,and 1,2-DCP in groundwater,were the main contributors to the overall health risk of multimedia pollution.This study developed a comprehensive approach to assess the risks posed by specific organic toxicants in various environmental media.The findings of this work can serve as a valuable reference for future management strategies in retired industrial parks.展开更多
Captivated by the enduring wisdom of traditional Chinese culture and the country’s modern transformation,Patrick Nijs,former Belgian ambassador to China,chose to take root in the country after retirement and bring hi...Captivated by the enduring wisdom of traditional Chinese culture and the country’s modern transformation,Patrick Nijs,former Belgian ambassador to China,chose to take root in the country after retirement and bring his visionary green dream to life.展开更多
基金financially supported by the National Key Research and Development Program of China(2023YFB3809300)。
文摘With the approaching of large-scale retirement of power lithium-ion batteries(LIBs),their urgent handling is required for environmental protection and resource reutilization.However,at present,substantial spent power batteries,especially for those high recovery value cathode materials,have not been greenly,sustainably,and efficiently recycled.Compared to the traditional recovery method for cathode materials with high energy consumption and severe secondary pollution,the direct repair regeneration,as a new type of short-process and efficient treatment methods,has attracted widespread attention.However,it still faces challenges in homogenization repair,electrochemical performance decline,and scaling-up production.To promote the direct regeneration technology development of failed NCM materials,herein we deeply discuss the failure mechanism of nickel-cobalt-manganese(NCM)ternary cathode materials,including element loss,Li/Ni mixing,phase transformation,structural defects,oxygen release,and surface degradation and reconstruction.Based on this,the detailed analysis and summary of the direct regeneration method embracing solid-phase sintering,eutectic salt assistance,solvothermal synthesis,sol-gel process,spray drying,and redox mediation are provided.Further,the upcycling strategy for regeneration materials,such as single-crystallization and high-nickelization,structural regulation,ion doping,and surface engineering,are discussed in deep.Finally,the challenges faced by the direct regeneration and corresponding countermeasures are pointed out.Undoubtedly,this review provides valuable guidance for the efficient and high-value recovery of failed cathode materials.
基金Projects(51204209,51274240)supported by the National Natural Science Foundation of ChinaProject(HNDLKJ[2012]001-1)supported by Henan Electric Power Science&Technology Supporting Program,China
文摘The lifespan models of commercial 18650-type lithium ion batteries （nominal capacity of 1150 mA-h） were presented. The lifespan was extrapolated based on this model. The results indicate that the relationship of capacity retention and cycle number can be expressed by Gaussian function. The selecting function and optimal precision were verified through actual match detection and a range of alternating current impedance testing. The cycle life model with high precision （〉99%） is beneficial to shortening the orediction time and cutting the prediction cost.
文摘Military retired cadres were commonly in aged period with high-incidence of diseases. They were troubled with senility, illness, empty-nest syndrome and spouse-bereft, so they were more vulnerable to some psychological problems. Therefore, promoting the mental health service for retired cadres should be highly concerned and more professional service work should be provided to them.
文摘The nation’s nursing shortage is predicted to worsen, as nurses retire (supply) and more patients have access to care with the full enactment of the Affordable Care Act (demand). Schools of nursing are under continuing pressure to increase enrollment in entry level nursing programs [1-4]. Nurse educators have been engaged in a variety of creative and innovative projects to increase enrollment with some success. A primary reason for the lack of educational capacity is the shortage of nursing faculty [3-7]. The University of Texas Health Science Center-Houston School of Nursing undertook an innovative project to alleviate the nursing faculty shortage at that school. Working with a retired physician group, physician volunteers were solicited to teach in the laboratory portion of an undergraduate health assessment course. Twenty-two physicians volunteered in the first year in a class that involved forty baccalaureate students in their first-semester. The objectives of the project were twofold: First, to determine the suitability of retired physicians to serve as teachers of baccalaureate nursing students and second, ascertain possible monetary savings by using these physicians. Both of these goals were realized. The students valued the physicians’ enthusiasm, wisdom and experience and the cohort of physicians equaled the equivalent of four nursing faculty members. With an average annual faculty salary of $100,000, savings were significant.
文摘China has a large base of aging population, and its speed entering the aging society and the growth rate are higher than the average level of the world;however, China's awareness and actions against the population aging are relatively backward. Aging education is an important part of lifelong education;more importantly, it is an important manifestation of education to deal with the aging society. The interest education of retired college teachers is an important component of the aging education and lifelong education;laying a solid foundation for the interest education of retired college teachers would make great contributions to China's aging education. Helping the retired college teachers to realize second advancement and promotion of their enterprises, as well as realizing self-values via the guiding method of interest education is an essential way under the scientific outlook on development. The realization of the interest education of retired college teachers lies in three steps;i.e. intensifying college teachers' acknowledgement of the interest education, building and perfecting the interest education institutions for the college teachers, as well as conducting the interest education of the retired college teachers.
文摘This article focuses on the development and content of an empowerment programme for staff members at a service centre. An empowerment programme for staffworking with retired volunteers can bring about better knowledge and understanding of elderly persons. This can lead to the target group being ideally managed and understood. The personnel work and interact on a daily basis with retired volunteers. The empowering programme includes matters such as the life circumstances of retired volunteers, the value that retired volunteers have, for the functioning of the service centre, the reasons for utilising retired volunteers, what volunteers expect of staff members, and the motivation of retired volunteers to be involved in the various activities of a service centre for the elderly to benefit the staff members themselves. By presenting and evaluating the empowerment programme, staff members will be able to become functional units in utilising elderly volunteers to the fullest possible in order to benefit the staff members, the retired volunteers, and the community at large.
文摘The Shanghai government to help return Shanghai retired educated youth to overcome economic and social life in various difficulties introduced many help policy, but due to historical and realistic reasons, retired to Shanghai social security of the educated youth is always a trouble, it is difficult to get the perfect solution, it seriously affected the Shanghai social harmonious stability. This article attempts through the government-led level of retirement return Shanghai educated youth with all-sides help to solve their difficulties, through to the educated youth to compensate, to set up the educated youth mutual guarantee fund, broken educated youth and children between the problem of intergenerational transmission of retired return Shanghai social security dilemma of educated youth broken, in order to improve their level of social security in Shanghai.
文摘From the perspective of the system, the contradiction and conflict between the national system of competitive sports and the socialist market economy is the deep-seated contradiction that leads to the difficult employment of retired athletes. In addition, the current employment security system for retired athletes still exist in the form of the protection of substantive support, heavy monetary compensation light employment protection, the lack of protection of the system of legislative protection and other issues. Study shows that implementation will help athletes ＂lifelong development＂ concept, to promote the gradual reform of the system of sports training; market oriented, taking employment as the goal, improve the occupation skill training system of retired athletes; social assistance to correctly understand the re employment of retired athletes, establish and improve the security of the re employment of retired athletes the legal system is the focal point in the future to establish and perfect the security system of the re employment of retired athletes.
文摘Objective: to study the dependent factors of the elderly on the treatment of chronic diseases. Methods: from March 2018 to April 2019 in our hospital, 100 cases of elderly chronic diseases with one or more of three chronic diseases: hypertension, hyperlipidemia and diabetes were selected from simple random samples. Develop and implement regular surveys to identify dependence on treatment for chronic conditions. Results: before retirees treated for chronic conditions, it was generally more effective that 81% of seniors chose to see a doctor after their health improved or worsened and then decided to stop taking medications. 19% of seniors have no access to medications because their treatment options are too complex. 80% of the elderly have a regular check-up, while 20% are unable to do so because the hospital is too far from the hospital or in a difficult situation. Bottom line: while treatment of chronic conditions in the elderly prior to retirement is generally better than treatment of gender-related conditions, medical perceptions and behaviors still require more attention. To further increase the autonomy of older persons in the fight against chronic sexually transmitted diseases, evidence-based, effective and comprehensive strategies are needed to increase the autonomy of older persons in the fight against chronic sexually transmitted diseases.
文摘In recent years, under the background of increasingly fierce market competition, the enterprise reform has been deepening, and many bankrupt and closed enterprises have increased the number of early retirees. In order to improve the future life of enterprise retirees, protect the legitimate rights and interests of enterprise retirees, and realize the stability and development of enterprises, the relevant competent departments must do a good job in the management of personnel files of enterprise retirees, safeguard the legitimate rights and interests of retirees, and provide support for the social harmonious and stable development. Based on this, this paper first summarizes the relevant content of retired cadre personnel file management, and then summarizes the advantages of strengthening retired cadre personnel file management, and finally analyzes the disadvantages of retired cadre personnel file management of the effective ways to strengthen the management of retired cadre personnel file, for the relevant scholars for reference.
文摘Mary Whitsell,from the United States,retired as a tutor with the University of Nottingham Ningbo China(UNNC)in 2021.Now,she volunteers as an English teacher at the library of Yongcheng Community,in Shounan Subdistrict,Yinzhou District,in Ningbo,a city in East China's Zhejiang Province.Whitsell's approach to teaching has inspired her students to be enthusiastic about learning English.The community-based classroom is filled with laughter-and love.For Whitsell,volunteering as a teacher is her way of repaying the kindness she has received since she settled in Ningbo.She hopes to promote warmth and kindness to people in the community.
基金Supported by the National Natural Science Foundation of China(71961009)the Jiangxi Province Graduate Innovation Funding Project(YC2022-B156)the Hunan Province Social Science Achievements Evaluation Committee Project(XSP24YBC105)。
文摘Electric Vehicles(EVs),as a low-carbon means of transportation,have promptly become popular worldwide in the past decade.Since the lifespan of batteries is limited,massive of Electric Vehicle Batteries(EVBs)are being retired,resulting in a rapid increase in the demand for the recycling of retired EVBs in recent years.However,due to high recycling costs and immature recycling technologies,EV manufacturers are facing significant challenges in recycling retired EVBs.China,as the country with the largest number of EV users in the world,is exploring effective incentive policies for the recycling of retired EVBs.In this context,we developed a system dynamics model to analyze the impact of incentive polices such as,recycling subsidies,technological progress,and carbon trading on the retired EVBs recycling.Results show that:1)recycling subsidies can improve the recycling ratios quickly in the short term,and dynamic subsidies are more efficient than static subsidies;2)the policy of technological advancement can reduce the recovery and cascade utilization cost,thus having a positive impact on battery recycling,but the policy effect has a time-delay;3)the carbon trading policy is unable to promote efficient recycling due to the current low carbon prices;4)dynamic subsidy and technological advancement policies complement each other,therefore,the combination of these two policies is the best way to promote the recycling of retired EVBs and reduce carbon emissions.It is hoped that this study will contribute to the ongoing debate on policies for the industrialization of retired EVBs recycling.
文摘Helio da Silva,a retired business executive from Brazil,single⁃handedly planted over 41,000 trees in his hometown of Sao Paulo over the last two decades.Flying over the Brazilian metropolis of Sao Paulo,it's tough to miss the 3.2-kilometer⁃long and 100⁃meter⁃wide green strip of trees wedged between two of the city's busiest roads.
基金Supported by the National Basic Research and Development Program of China (Grant No. 2007CB815501)the Chinese National Programs for High Technology Research and Development (Grant No. 2007AA12z343)
文摘This paper briefly introduces the maneuverable feature of the slightly inclined geosynchronous orbit (SIGSO) satellites under a new control model degraded from the geosynchronous orbit (GEO) communication satellites which will retire as most of the fuel in these satellites has been consumed. Basing on the transmitting Chinese Area Positioning System (CAPS), the authors, by analyses, indicate that such satellites can make an improvement to CAPS constellation configuration, especially to the PDOP value from simulation. The results show that the use of SIGSO satellites can (1) actualize three-dimensional (3D) navigation and positioning compared with the situation, which, only using GEO satellites, cannot be carried out, and improve navigation and positioning accuracy to some extent; (2) reuse the communication services of these satellites for more years, and GEO communication satellites will be retired at a later time and delay their time to become space debris and reduce their pollution of the space environment, so that valuable space resources are maximally used. As for the use of these satellites in the transmitting positioning system, the authors present some views and suggestions in this work.
基金Supported by the National Basic Research and Development Program of China (Grant No. 2007CB815501)the National High Technology Research and Development Program of China (Grant No. 2007AA12z343)
文摘Retired geosynchronous (GEO) communication satellites affect the GEO orbit environment in outer space. According to the new concept of modern design, the authors propose creatively a method of reusing retired GEO communication satellites, through adjusting retired GEO satellites to slightly inclined orbit geosynchronous (SIGSO) satellites. After these retired satellites are applied to the navigation and communication system, integrity of navigation system and positioning accuracy of the system is improved. Meanwhile, some transponders on these retired satellites can be used to establish a new satellite communication service, and initiate the study and utilization of the multi-life cycle for retired satellites. Experimental results show that this project has significant social value and can make remarkable economic benefit.
基金supported by the Consulting Research Project of the Chinese Academy of Engineering(No.2023-XZ-37)the Science and Technology Research Program of Zhejiang Province(China)(No.2020C03011).
文摘The overall cross-media risk evaluation of organic pollutants in retired industrial parks is insufficiently recognized.In this study,11 semi-volatile organic compounds(SVOCs)and 27 volatile organic compounds(VOCs)were measured in 531 soil and groundwater samples taken from a retired industrial park by coast in Zhejiang Province,China.Total petroleum hydrocarbons(TPHs),Di(2-ethylhexyl)phthalate(DEHP),benzene,and ethylbenzene were identified as the critical pollutants in the soil,while TPHs,1,2-dichloropropane(1,2-DCP),toluene,benzo[a]anthracene(BaA),and benzo[b]fluoranthene(BbF)were identified as critical pollutants in the groundwater for exceeding China national standards.The spatial correlation between the concentrations of organic pollutants in soil and groundwater was explored by employing the Geodetector model.Based on the results of spatial interpolation,high-risk hotspots regarding soil and groundwater pollution were identified.Moreover,the possible harm to human health of the critical pollutants were also under evaluation.Among various critical pollutants,benzene,ethylbenzene,and DEHP in soil,and 1,2-DCP in groundwater,were the main contributors to the overall health risk of multimedia pollution.This study developed a comprehensive approach to assess the risks posed by specific organic toxicants in various environmental media.The findings of this work can serve as a valuable reference for future management strategies in retired industrial parks.
文摘Captivated by the enduring wisdom of traditional Chinese culture and the country’s modern transformation,Patrick Nijs,former Belgian ambassador to China,chose to take root in the country after retirement and bring his visionary green dream to life.
