This paper reviewed the trend and development of semi-solid metal technique. The processes and mechanisms for producing slurry of SSM and its industrial applications have been summarized and discussed. Discussions on ...This paper reviewed the trend and development of semi-solid metal technique. The processes and mechanisms for producing slurry of SSM and its industrial applications have been summarized and discussed. Discussions on the basic rheological theory are presented for more applications. Further consideration of the development and application of SSM technique is also proposed.展开更多
The world is currently undergoing profound changes which have never happened within the past century.Global competition in the technology and industry fields is becoming increasingly fierce.The strategic competition o...The world is currently undergoing profound changes which have never happened within the past century.Global competition in the technology and industry fields is becoming increasingly fierce.The strategic competition of the major powers further focuses on the manufacturing industry.Developed countries such as the United States,Germany,and Japan have successively put forward strategic plans such as“re-industrialization”and“return of manufacturing industry”,aiming to seize the commanding heights of a new round of global high-end technology competition and expand international market share.Standing at the historic intersection of a new round of scientific and technological revolution and China's accelerated high-quality development,the“14th Five-Year Plan”clearly pointed out that intelligent manufacturing is the main development trend to promote China's manufacturing to the medium-high end of the global value chain.This reflects the importance of advanced manufacturing for national strategic layout.To better grasp the development direction of advanced manufacturing equipment,the development process and current application status of manufacturing equipment are summarized,and thereafter the characteristics of manufacturing equipment in different development stages of the manufacturing industry are analyzed.Finally,the development trend of advanced milling equipment is prospected.展开更多
Mobile TV is growing popular worldwide. It puts new hardware requirements on the handset, requiring a tuner, a demodulator and a decoder to receive and process signals that challenge the power consumption and size of ...Mobile TV is growing popular worldwide. It puts new hardware requirements on the handset, requiring a tuner, a demodulator and a decoder to receive and process signals that challenge the power consumption and size of handsets. These special terminal chips can solve these problems and stand as a prerequisite for broadcasting TV to mobile phones. The commercial mobile TV handsets have been brought to the market, which use the integrated single-chip, the dual/multi mode chip, or the TV receiver integrated in an SD card. These small chips with low power consumption will help popularize mobile TV services.展开更多
China-Japan Relationship is a very special bilateral tie in international relations since it’s a matter of regional peace and stability.The Abe administration has long pursued a"bet-hedging"strategy towards...China-Japan Relationship is a very special bilateral tie in international relations since it’s a matter of regional peace and stability.The Abe administration has long pursued a"bet-hedging"strategy towards China.Although it claims that it attaches great importance to the ties between Japan and China,it pursues"Strategic Diplomacy"and"Value-oriented Diplomacy"to hype up the so-called"China Threat"展开更多
Based on the review of the papers and other related material submitted to the conference, the status quo and developmental trends of geocryology is briefly discussed.
In the context of education internationalization,the internationalization of higher education has become a major trend in the field of education in most countries,with international student education as the core.This ...In the context of education internationalization,the internationalization of higher education has become a major trend in the field of education in most countries,with international student education as the core.This phenomenon promotes cultural exchanges and integration among countries as well as higher education reform,which is of great significance in enhancing the international influence of higher education in each country.However,there are also some challenges faced by higher education students when studying abroad.The article digs into the origin and history of studying abroad,analyzes the current situation and reasons for higher education students in China to study abroad,discusses the opportunities and challenges faced by higher education students in China when studying abroad,and analyzes the trend of studying abroad in China.展开更多
Background:COVID-19 has had a considerable impact on society since 2019,and the disease has high mortality and infection rates.There has been a particular focus on how to best manage COVID-19 and how to analyze and pr...Background:COVID-19 has had a considerable impact on society since 2019,and the disease has high mortality and infection rates.There has been a particular focus on how to best manage COVID-19 and how to analyze and predict the epidemic status of infectious diseases in general.Methods The present study analyzed the COVID-19 epidemic patterns and made predictions of future trends based on the statistics obtained from a global infectious disease network data monitoring and early warning system(OBN,http://27.115.41.130:8888/OBN/).The development trends of other major infectious diseases were also examined.Results The global COVID-19 pandemic showed periodic increases throughout 2021.At present,there is a high incidence in European countries,especially in Eastern Europe,followed by in Africa.The risk of contracting COVID-19 was divided into high,medium–high,medium,medium–low,and low grades depending on the stage of the epidemic in each examined region over the current period.The occurrence and prevalence of major infectious diseases throughout the world did not significantly change in 2021.Conclusions The COVID-19 pandemic has strongly impacted people’s lives and the economy.The effects of global infectious diseases can be ameliorated by strengthening monitoring and early warning systems and by facilitating the international exchange of information.展开更多
基金the National Natural Science foundation of China! (59995440)
文摘This paper reviewed the trend and development of semi-solid metal technique. The processes and mechanisms for producing slurry of SSM and its industrial applications have been summarized and discussed. Discussions on the basic rheological theory are presented for more applications. Further consideration of the development and application of SSM technique is also proposed.
基金Supported by National Natural Science Foundation of China (Grant No.92148301)。
文摘The world is currently undergoing profound changes which have never happened within the past century.Global competition in the technology and industry fields is becoming increasingly fierce.The strategic competition of the major powers further focuses on the manufacturing industry.Developed countries such as the United States,Germany,and Japan have successively put forward strategic plans such as“re-industrialization”and“return of manufacturing industry”,aiming to seize the commanding heights of a new round of global high-end technology competition and expand international market share.Standing at the historic intersection of a new round of scientific and technological revolution and China's accelerated high-quality development,the“14th Five-Year Plan”clearly pointed out that intelligent manufacturing is the main development trend to promote China's manufacturing to the medium-high end of the global value chain.This reflects the importance of advanced manufacturing for national strategic layout.To better grasp the development direction of advanced manufacturing equipment,the development process and current application status of manufacturing equipment are summarized,and thereafter the characteristics of manufacturing equipment in different development stages of the manufacturing industry are analyzed.Finally,the development trend of advanced milling equipment is prospected.
文摘Mobile TV is growing popular worldwide. It puts new hardware requirements on the handset, requiring a tuner, a demodulator and a decoder to receive and process signals that challenge the power consumption and size of handsets. These special terminal chips can solve these problems and stand as a prerequisite for broadcasting TV to mobile phones. The commercial mobile TV handsets have been brought to the market, which use the integrated single-chip, the dual/multi mode chip, or the TV receiver integrated in an SD card. These small chips with low power consumption will help popularize mobile TV services.
文摘China-Japan Relationship is a very special bilateral tie in international relations since it’s a matter of regional peace and stability.The Abe administration has long pursued a"bet-hedging"strategy towards China.Although it claims that it attaches great importance to the ties between Japan and China,it pursues"Strategic Diplomacy"and"Value-oriented Diplomacy"to hype up the so-called"China Threat"
文摘Based on the review of the papers and other related material submitted to the conference, the status quo and developmental trends of geocryology is briefly discussed.
文摘In the context of education internationalization,the internationalization of higher education has become a major trend in the field of education in most countries,with international student education as the core.This phenomenon promotes cultural exchanges and integration among countries as well as higher education reform,which is of great significance in enhancing the international influence of higher education in each country.However,there are also some challenges faced by higher education students when studying abroad.The article digs into the origin and history of studying abroad,analyzes the current situation and reasons for higher education students in China to study abroad,discusses the opportunities and challenges faced by higher education students in China when studying abroad,and analyzes the trend of studying abroad in China.
文摘Background:COVID-19 has had a considerable impact on society since 2019,and the disease has high mortality and infection rates.There has been a particular focus on how to best manage COVID-19 and how to analyze and predict the epidemic status of infectious diseases in general.Methods The present study analyzed the COVID-19 epidemic patterns and made predictions of future trends based on the statistics obtained from a global infectious disease network data monitoring and early warning system(OBN,http://27.115.41.130:8888/OBN/).The development trends of other major infectious diseases were also examined.Results The global COVID-19 pandemic showed periodic increases throughout 2021.At present,there is a high incidence in European countries,especially in Eastern Europe,followed by in Africa.The risk of contracting COVID-19 was divided into high,medium–high,medium,medium–low,and low grades depending on the stage of the epidemic in each examined region over the current period.The occurrence and prevalence of major infectious diseases throughout the world did not significantly change in 2021.Conclusions The COVID-19 pandemic has strongly impacted people’s lives and the economy.The effects of global infectious diseases can be ameliorated by strengthening monitoring and early warning systems and by facilitating the international exchange of information.
