This review paper provides an overview of the micropillar compression technique as applied to magnesium(Mg) and its alloys. It explores the influence of various factors, such as pillar size, shape, temperature, and st...This review paper provides an overview of the micropillar compression technique as applied to magnesium(Mg) and its alloys. It explores the influence of various factors, such as pillar size, shape, temperature, and strain rate on the mechanical properties of Mg.Additionally, the impact of alloying elements, aging, and precipitates in Mg alloys has been extensively examined, revealing their significant influence on mechanical performance. The study highlights the strength and strain hardening improvements in Mg with decreasing pillar size in micropillar compression. Furthermore, the role of precipitates as strengthening agents, affecting deformation mechanisms and overall mechanical response, is explored. These valuable insights are crucial for designing Mg-based materials with enhanced mechanical properties for advanced engineering applications.展开更多
Although not everybody wants to admit,climate change has been happening with irreversible consequences.It is getting worse and worse and becoming more and more influential to not only the environment but also to all k...Although not everybody wants to admit,climate change has been happening with irreversible consequences.It is getting worse and worse and becoming more and more influential to not only the environment but also to all kinds of beings;our earth is now seriously threatened by climate change.It is a critical issue the whole society must face and actions must展开更多
We analyze development situations of Beijing modern urban agriculture from agricultural distribution,agricultural foundation and agricultural industrial system.Our research on challenges and opportunities of Beijing m...We analyze development situations of Beijing modern urban agriculture from agricultural distribution,agricultural foundation and agricultural industrial system.Our research on challenges and opportunities of Beijing modern urban agriculture indicates that challenges include short of resources,deterioration of environment,and high production cost,and opportunities include large market space,advanced agricultural industrial experience and many other development opportunities.On the basis of these,we put forward development thought of Beijing modern urban agriculture in " the Twelfth Five Plan" period.We must improve foundation,integration and demonstration of agriculture;orient towards market and satisfy medium and high end market demands;actively cultivate and strengthen agricultural industrial level;create unique product brand;and raise added value of agricultural products.展开更多
1 Introduction High-speed networking can now deliver Information tomillions of users in seconds.Users In turn can download thedata in electronic format or just print them out with a fewstrokes of the keyboard.The data...1 Introduction High-speed networking can now deliver Information tomillions of users in seconds.Users In turn can download thedata in electronic format or just print them out with a fewstrokes of the keyboard.The data can be easily saved,reorganized and modified electronocally.While informationtechnology provides fast and easy ways to distributeinformation,it also presents challenges.Easy access tocopyrighted materials is resulting in the unauthorizedreproduction of all kinds of information,forcing info...展开更多
Although the EU President Van Rompuy expresses the belief that the EU-China strategic partnership and the people-to-people friendship will continue to flourish,more and more European intellectuals express their doubts...Although the EU President Van Rompuy expresses the belief that the EU-China strategic partnership and the people-to-people friendship will continue to flourish,more and more European intellectuals express their doubts about the strategic partnerships of EU-China relations.The reasons for the doubts are firstly European scholars place more emphasis on the differences between China and EU in ideology and political system;secondly,they believe that the establishment of the strategic partnership between China and EU was the result of EU and its Member States having implemented an "unconditional engagement" with China;thirdly,a series of differences between China and the EU on issues like trade,Africa,climate change in recent years.However the different ideas towards China EU strategic partnership have caused the partnership to face challenges as well as significant opportunities for development.展开更多
Premature ovarian insufficiency（POI） affects seriously physical and mental health of the patients. Studies show that acupuncture may be promising in treating POI. yet evidence is insufficient. International patient ...Premature ovarian insufficiency（POI） affects seriously physical and mental health of the patients. Studies show that acupuncture may be promising in treating POI. yet evidence is insufficient. International patient registry, one form of observational study, is designed for evaluating effectiveness and safety of acupuncture in real-world clinical settings. We will face a series of opportunities and challenges. The opportunities are as follows：（1） Interdisciplinary cooperation can improve the effect of acupuncture for POI.（2） The protocol for acupuncture to treat POI has room for improvement.（3） The patient registry study can make up the shortcomings of randomized controlled trials.（4） The patient registry study can collect real-world data and explore responses of different populations to acupuncture and can be the foundation for the successive studies. International patient registry may face technological, ethical and financial challenges, while the established International Patient Registry Platform of Acupuncture-Moxibustion（www.amreg.org：8082/v3） is actively responding to these challenges. Till now there have been more than 300 patients of POI enrolled on this platform.展开更多
Traditional Chinese medicine(TCM)is the main body of natural medicine in China,and TCM prescriptions are the main application forming TCM.For thousands of years,Chinese people have learned to use multiple herbal medic...Traditional Chinese medicine(TCM)is the main body of natural medicine in China,and TCM prescriptions are the main application forming TCM.For thousands of years,Chinese people have learned to use multiple herbal medicines in proper proportions for therapeutic use,in order to overcome the side effect of some herbs,as well as to bring synergy effects.From individual herbal展开更多
Clinical trials are experimental studies done in clinical setting.Such prospective biomedical or behavioral studies on human beings are designed to answer specific questions about interventions,including new treatment...Clinical trials are experimental studies done in clinical setting.Such prospective biomedical or behavioral studies on human beings are designed to answer specific questions about interventions,including new treatments and known interventions that warrant further study and comparison.Starting from 1980s,more and more of Chinese展开更多
Computer science continues to grow at a rapid pace,raising the issue of how universities can best adapt to this trend.At the third Global Forum on the Development of Computer Science(GFDCS),five heads of departments o...Computer science continues to grow at a rapid pace,raising the issue of how universities can best adapt to this trend.At the third Global Forum on the Development of Computer Science(GFDCS),five heads of departments of computer science from Asia,Europe,and North America came together to exchange ideas under the theme Challenges and Opportunities of Computer Science in the New Era.Through the discussions,a number of new challenges were explored,including how to meet the growing demand for computer science education,how to manage increased teaching loads,how to foster collaboration between computer science and other disciplines,how to raise ethical awareness,and how to support new“transdisciplinary”modes of education and research.At the same time,there was a consensus on the need to strengthen the role of computer science in other departments,the importance of industrial collaboration,and the need for more scalable approaches to teaching.The evolving role of computer science within the context of broader science was also discussed.展开更多
The function of E-commerce is becoming more and more widely applied to many fields,which bring about some new challenges and opportunities for the construction of marketing model.It is proved that the more E-com- merc...The function of E-commerce is becoming more and more widely applied to many fields,which bring about some new challenges and opportunities for the construction of marketing model.It is proved that the more E-com- merce applied to the construction of marketing,the more precision of forecast for the enterprises can acquire,which is very helpful for the production and marketing of enterprises.Therefore,the research on the E-commerce applied to the construction of marketing is popular today.This paper applie...展开更多
文摘This review paper provides an overview of the micropillar compression technique as applied to magnesium(Mg) and its alloys. It explores the influence of various factors, such as pillar size, shape, temperature, and strain rate on the mechanical properties of Mg.Additionally, the impact of alloying elements, aging, and precipitates in Mg alloys has been extensively examined, revealing their significant influence on mechanical performance. The study highlights the strength and strain hardening improvements in Mg with decreasing pillar size in micropillar compression. Furthermore, the role of precipitates as strengthening agents, affecting deformation mechanisms and overall mechanical response, is explored. These valuable insights are crucial for designing Mg-based materials with enhanced mechanical properties for advanced engineering applications.
文摘Although not everybody wants to admit,climate change has been happening with irreversible consequences.It is getting worse and worse and becoming more and more influential to not only the environment but also to all kinds of beings;our earth is now seriously threatened by climate change.It is a critical issue the whole society must face and actions must
基金Supported by Research Project for Previous Period in the Twelfth Five-Year Plan for National Economic and Social Development of Beijing (Industry 02)
文摘We analyze development situations of Beijing modern urban agriculture from agricultural distribution,agricultural foundation and agricultural industrial system.Our research on challenges and opportunities of Beijing modern urban agriculture indicates that challenges include short of resources,deterioration of environment,and high production cost,and opportunities include large market space,advanced agricultural industrial experience and many other development opportunities.On the basis of these,we put forward development thought of Beijing modern urban agriculture in " the Twelfth Five Plan" period.We must improve foundation,integration and demonstration of agriculture;orient towards market and satisfy medium and high end market demands;actively cultivate and strengthen agricultural industrial level;create unique product brand;and raise added value of agricultural products.
文摘1 Introduction High-speed networking can now deliver Information tomillions of users in seconds.Users In turn can download thedata in electronic format or just print them out with a fewstrokes of the keyboard.The data can be easily saved,reorganized and modified electronocally.While informationtechnology provides fast and easy ways to distributeinformation,it also presents challenges.Easy access tocopyrighted materials is resulting in the unauthorizedreproduction of all kinds of information,forcing info...
文摘Although the EU President Van Rompuy expresses the belief that the EU-China strategic partnership and the people-to-people friendship will continue to flourish,more and more European intellectuals express their doubts about the strategic partnerships of EU-China relations.The reasons for the doubts are firstly European scholars place more emphasis on the differences between China and EU in ideology and political system;secondly,they believe that the establishment of the strategic partnership between China and EU was the result of EU and its Member States having implemented an "unconditional engagement" with China;thirdly,a series of differences between China and the EU on issues like trade,Africa,climate change in recent years.However the different ideas towards China EU strategic partnership have caused the partnership to face challenges as well as significant opportunities for development.
基金Supported by Ministry of Science and Technology of the People's Republic of China through the Twelfth Five-Year National Science and Technology Pillar Program(2012BAI24B02)~~
文摘Premature ovarian insufficiency（POI） affects seriously physical and mental health of the patients. Studies show that acupuncture may be promising in treating POI. yet evidence is insufficient. International patient registry, one form of observational study, is designed for evaluating effectiveness and safety of acupuncture in real-world clinical settings. We will face a series of opportunities and challenges. The opportunities are as follows：（1） Interdisciplinary cooperation can improve the effect of acupuncture for POI.（2） The protocol for acupuncture to treat POI has room for improvement.（3） The patient registry study can make up the shortcomings of randomized controlled trials.（4） The patient registry study can collect real-world data and explore responses of different populations to acupuncture and can be the foundation for the successive studies. International patient registry may face technological, ethical and financial challenges, while the established International Patient Registry Platform of Acupuncture-Moxibustion（www.amreg.org：8082/v3） is actively responding to these challenges. Till now there have been more than 300 patients of POI enrolled on this platform.
文摘Traditional Chinese medicine(TCM)is the main body of natural medicine in China,and TCM prescriptions are the main application forming TCM.For thousands of years,Chinese people have learned to use multiple herbal medicines in proper proportions for therapeutic use,in order to overcome the side effect of some herbs,as well as to bring synergy effects.From individual herbal
文摘Clinical trials are experimental studies done in clinical setting.Such prospective biomedical or behavioral studies on human beings are designed to answer specific questions about interventions,including new treatments and known interventions that warrant further study and comparison.Starting from 1980s,more and more of Chinese
文摘Computer science continues to grow at a rapid pace,raising the issue of how universities can best adapt to this trend.At the third Global Forum on the Development of Computer Science(GFDCS),five heads of departments of computer science from Asia,Europe,and North America came together to exchange ideas under the theme Challenges and Opportunities of Computer Science in the New Era.Through the discussions,a number of new challenges were explored,including how to meet the growing demand for computer science education,how to manage increased teaching loads,how to foster collaboration between computer science and other disciplines,how to raise ethical awareness,and how to support new“transdisciplinary”modes of education and research.At the same time,there was a consensus on the need to strengthen the role of computer science in other departments,the importance of industrial collaboration,and the need for more scalable approaches to teaching.The evolving role of computer science within the context of broader science was also discussed.
基金This research was supported by the National Social Sci-ence Foundation of China under Grant 06CJL019.
文摘The function of E-commerce is becoming more and more widely applied to many fields,which bring about some new challenges and opportunities for the construction of marketing model.It is proved that the more E-com- merce applied to the construction of marketing,the more precision of forecast for the enterprises can acquire,which is very helpful for the production and marketing of enterprises.Therefore,the research on the E-commerce applied to the construction of marketing is popular today.This paper applie...
