Terahertz waves, sitting in the gap between the middle infrared and millimeter wave regions, are known as the last vacant area of the electromagnetic spectrum that has not quite been understood and brought into applic...Terahertz waves, sitting in the gap between the middle infrared and millimeter wave regions, are known as the last vacant area of the electromagnetic spectrum that has not quite been understood and brought into applications. The Terahertz region has been the focus of research worldwide since early 1990s. Due to their unique characteristics, Terahertz technologies have a wide range of applications, such as hazard detection, high speed data communications, radio astronomy, and biomedical imaging.展开更多
From energy generation to transportation, from energy communications, and from portable devices to data centers, distribution to storage, from semiconductor processing to energy consumption has grown to be a major lim...From energy generation to transportation, from energy communications, and from portable devices to data centers, distribution to storage, from semiconductor processing to energy consumption has grown to be a major limitation to usability and performance. Therefore, energy-efficient technologies become an active research area motivated by energy necessity and environmental concerns. With energy-efficient technologies, a number of epoch-making technical approaches can be expected. Energy efficiency technologies are affecting all forms of energy conversion and all aspects of life.展开更多
Guest Editors （Editorial Board of EET）： Prof. Qiang Li, Aarhus University and University of Electronic Science and Technology of China, qli@uestc.edu.cn Prof. Terrence Mak, The Chinese University of Hong Kong, stma...Guest Editors （Editorial Board of EET）： Prof. Qiang Li, Aarhus University and University of Electronic Science and Technology of China, qli@uestc.edu.cn Prof. Terrence Mak, The Chinese University of Hong Kong, stmak@cse.cuhk.edu.hk展开更多
Terahertz waves, sitting in the gap between the middle infrared and millimeter wave regions, are known as the last vacant area of the electromagnetic spectrum that has not quite been understood and brought into applic...Terahertz waves, sitting in the gap between the middle infrared and millimeter wave regions, are known as the last vacant area of the electromagnetic spectrum that has not quite been understood and brought into applications. The Terahertz region has been the focus of research worldwide since early 1990s. Due to their unique characteristics, Terahertz technologies have a wide range of applications, such as hazard detection, high speed data communications, radio astronomy, and biomedical imaging.展开更多
From energy generation to transportation, from energy distribution to storage, from semiconductor processing to communications, and from portable devices to data centers, energy consumption has grown to be a major lim...From energy generation to transportation, from energy distribution to storage, from semiconductor processing to communications, and from portable devices to data centers, energy consumption has grown to be a major limitation to usability and performance. Therefore, energy-efficient technologies become an active research area motivated by energy necessity and environmental concerns. With energy-efficient technologies, a number of epoch-making technical approaches can be expected. Energy efficiency technologies are affecting all forms of energy conversion and all aspects of life.展开更多
During the past few years, the terahertz （THz） frequency regime has had renewed scientific and technological interest because of recent breakthroughs in the areas of high power sources, sensitive detectors, novel ma...During the past few years, the terahertz （THz） frequency regime has had renewed scientific and technological interest because of recent breakthroughs in the areas of high power sources, sensitive detectors, novel materials, and high resolution video imaging. Because it lies between the radio frequencies and infrared wavelengths, the terahertz electromagnetic region was thought to be promising for practical applications （300 micrometers wavelength corresponds to 1 THz frequency）, but it suffered from very high attenuation through the atmosphere （above 1 dB/meter）, and was found to be difficult to generate, modulate, and detect. On the other hand, many non-polar dielectric materials are transparent to THz waves,展开更多
Terahertz waves, sitting in the gap between the middle infrared and millimeter wave regions, are known as the last vacant area of the electromagnetic spectrum that has not quite been understood and brought into applic...Terahertz waves, sitting in the gap between the middle infrared and millimeter wave regions, are known as the last vacant area of the electromagnetic spectrum that has not quite been understood and brought into applications. The Terahertz region has been the focus of research worldwide since early 1990s. Due to their unique characteristics, Terahertz technologies have a wide range of applications, such as hazard detection, high speed data communications, radio astronomy, and biomedical imaging.展开更多
Terahertz wave, sitting in the gap between middle infrared and millimeter wave, has been known as the last vacant area in spectrum that has not been quite understood and brought into applications. It has been the focu...Terahertz wave, sitting in the gap between middle infrared and millimeter wave, has been known as the last vacant area in spectrum that has not been quite understood and brought into applications. It has been the focus of research worldwide since early 1990s. Due to the unique characteristics of Terahertz wave, Terahertz technologies have a wide range of applications, such as hazard detection, high speed data communications, radio astronomy, biomedical imaging, etc.展开更多
Guest Editors （Editorial Board of EET）：Prof. Wei-Dong He Univ. of Electron. Sci. ＆ Tech. of China weidong.he@uestc.edu.cnProf. Terrenee Mak The Chinese Univ. ofHong Kong, stmak@cse.cuhk.edu.hkProf. Qiang Li Univ. ...Guest Editors （Editorial Board of EET）：Prof. Wei-Dong He Univ. of Electron. Sci. ＆ Tech. of China weidong.he@uestc.edu.cnProf. Terrenee Mak The Chinese Univ. ofHong Kong, stmak@cse.cuhk.edu.hkProf. Qiang Li Univ. of Electron. Sci. ＆ Tech. of China qli@uestc.edu.cnProf. Wei-Sheng Zhao Centre National de la Recherche Scientifique （National Center for Scientific Research） weisheng.zhao@u-psud, fr From energy generation to transportation, from energy distribution to storage, from semiconductor processing to communications, and from portable devices to data centers, energy consumption has grown to be a major limitation to usability and performance. Therefore, energy-efficient technologies become an active research area motivated by energy necessity and environmental concerns. With energy-efficient technologies, a number of epoch-making technical approaches can be expected. Energy efficiency technologies are affecting all forms of energy conversion and all aspects of life.展开更多
Digital transformation generally refers to the process of change in business and society,based on the omnipresence of sensors,networks,information,andcommunication technology.Ever shorter development and innovation cy...Digital transformation generally refers to the process of change in business and society,based on the omnipresence of sensors,networks,information,andcommunication technology.Ever shorter development and innovation cycles are a characteristic feature of this process,which is currently influencing all industries and all areas of life,be it industrial展开更多
In the past few years, energy-efficient technologies get more and more scientific and technological interest as the energy bottleneck stops the ＂Moore＇s law＂ according to the reports of International Roadmap for Se...In the past few years, energy-efficient technologies get more and more scientific and technological interest as the energy bottleneck stops the ＂Moore＇s law＂ according to the reports of International Roadmap for Semiconductors （ITRS）. Moreover, people start to take care seriously of the environmental impact due to the Dower dissioation.展开更多
Green technologies refer to environmentally sustainable approaches to our daily lifestyle, industry, computing, IT, and literally everything. As the enabling technology, the electronics, including circuits, systems, a...Green technologies refer to environmentally sustainable approaches to our daily lifestyle, industry, computing, IT, and literally everything. As the enabling technology, the electronics, including circuits, systems, and devices, are the key areas of research interests in green technologies. To be green means lower power and higher energy efficiency in the user＇s side and better management of energy sources in the provider＇s side. In the recent several years, the energy-efficient devices, circuits, and systems have received considerable attention in both academia and industry. It has been a clear trend that it is and will continue to be an area of extensive research interests in the coming years. In connection with the above view, and being invited by the Editor, Ms. Jasmine Xuan Xie, we have proposed this Special Section on Green Technologies：展开更多
As global energy demands continue increasing, the constant improvement of energy efficiency has been a consensus in the world wide and received more and more attention from not only the technical but also the sociolog...As global energy demands continue increasing, the constant improvement of energy efficiency has been a consensus in the world wide and received more and more attention from not only the technical but also the sociological, economic, and political sectors. Energy efficient technologies have been not only transforming the way that energy is produced, delivered, and consumed, but also changing every aspect of our life and even the future.展开更多
Energy consumption has been one of the major challenges and concerns for the electronic devices design, especially in high-performance multi- and many-core systems. A highly integrated many-core chip is prone to be ex...Energy consumption has been one of the major challenges and concerns for the electronic devices design, especially in high-performance multi- and many-core systems. A highly integrated many-core chip is prone to be extremely high-power consumption that exceeds the chip＇s power budget set leaded by cooling, packaging and/or the capacity of the power supply. When this situation happens, various parts of the many-core chip will have to be deliberately switched off （darkened） so that the chip is still in compliance with its power budget, which is referred as ＂dark silicon＂. Therefore, the research on energy efficient computing is a current trend and will continue to be an active area in the coming years.展开更多
The electric industry is being transformed from acentralized network to one that is less centralized andallows more consumer interaction in the form of a smart grid.
Since decades, the global electricity demand shows only one direction： a considerable constant increase every year. But the unlimited growth in energy consumption is discussed increasingly critical, not only primaril...Since decades, the global electricity demand shows only one direction： a considerable constant increase every year. But the unlimited growth in energy consumption is discussed increasingly critical, not only primarily in terms of limitations but also in terms of more efficient, more intelligent, and more sustainable usage of energy. Energy-efficient technologies （EET） and renewable energy technologies are already in a competitive position in different markets, and they are also actively embedded in scientific research. Meanwhile,展开更多
It is no secret--the world as it is today only runs with energy; and it is also no secret that the world is faced with steadily increasing energy demands. The reduction of dependence on fossil fuels is a global goal. ...It is no secret--the world as it is today only runs with energy; and it is also no secret that the world is faced with steadily increasing energy demands. The reduction of dependence on fossil fuels is a global goal. To achieve this goal three paths have to be considered： First, the substitution of fossil fuels with renewable energy; secondly, the increase in energy efficiency and the expansion of opportunities for energy storage; and thirdly, to find solutions to the associated socio-economic challenges.展开更多
Rectangular section control technology （RSCT） was introduced to achieve high-precision profile control during silicon steel rolling. The RSCT principle and method were designed, and the whole RSCT control strategy w...Rectangular section control technology （RSCT） was introduced to achieve high-precision profile control during silicon steel rolling. The RSCT principle and method were designed, and the whole RSCT control strategy was developed. Specifically, RSCT included roll contour design, roiling technology optimization, and control strategy development, aiming at both hot strip mills （HSMs） and cold strip mills （CSMs）. Firstly, through the high-performance variable crown （HVC） work roll optimization design in the upper-stream stands and the limited shifting technology for schedule-free rolling in the downstream stands of HSMs, a hot strip with a stable crown and limited wedge, ：local spot, and single wave was obtained, which was suitable for cold rolling. Secondly, an approximately rectangular section was obtained by edge varying contact （EVC） work roll contour design, edge-drop setting control, and. closed loop control in the upper-stream, stands of CSMs. Moreover, complex-mode flatness control was realized by coordinating multiple shape-control methods in the downstream stands of CSMs. In addition, the RSCT approach was applied in several silicon-steel production plants, where an outsicanding performance and remarkable economic benefits were observed.展开更多
Terahertz waves, sitting in the gap between the middle infrared and millimeter wave regions, are known as the last vacant area of the electromagnetic spectrum that has not quite been understood and brought into applic...Terahertz waves, sitting in the gap between the middle infrared and millimeter wave regions, are known as the last vacant area of the electromagnetic spectrum that has not quite been understood and brought into applications. The Terahertz region has been the focus of research worldwide since early 1990s. Due to their unique characteristics, Terahertz technologies have a wide range of applications, such as hazard detection, high speed data communications, radio astronomy, and biomedical imaging.展开更多
Green Technologies： Energy-Efficient Circuits, Systems, and Devices JEST （International）, Journal of Electronic Science and Technology, is a peer-reviewed periodical devoted to the purpose of providing rapid public...Green Technologies： Energy-Efficient Circuits, Systems, and Devices JEST （International）, Journal of Electronic Science and Technology, is a peer-reviewed periodical devoted to the purpose of providing rapid publication of original and significant contributions relating to the most highlight areas in electronic and information technology fields. With great honor, the Journal has published the contributions from more than 30 countries and regions. JEST is a DOAJ journal, indexed by EI in INSPEC, and also included in CAS, CNKI, Sciencepaper Online, etc. Green technologies refer to environmentally sustainable approaches to our daily lifestyle, industry, computing, IT, and literally everything. As the enabling technology, the electronics, including circuits, systems, and devices, are the key areas of research interests in green technologies. After publishing in this issue a special section on Green Technologies： Energy-Efficient Circuits, Systems, and Devices, JEST continuously seeks original contributions in this area to promote the deep researches and development of energy-efficient technologies and therefore to bring more valuable resources back to our authors and readers.展开更多
文摘Terahertz waves, sitting in the gap between the middle infrared and millimeter wave regions, are known as the last vacant area of the electromagnetic spectrum that has not quite been understood and brought into applications. The Terahertz region has been the focus of research worldwide since early 1990s. Due to their unique characteristics, Terahertz technologies have a wide range of applications, such as hazard detection, high speed data communications, radio astronomy, and biomedical imaging.
文摘From energy generation to transportation, from energy communications, and from portable devices to data centers, distribution to storage, from semiconductor processing to energy consumption has grown to be a major limitation to usability and performance. Therefore, energy-efficient technologies become an active research area motivated by energy necessity and environmental concerns. With energy-efficient technologies, a number of epoch-making technical approaches can be expected. Energy efficiency technologies are affecting all forms of energy conversion and all aspects of life.
文摘Guest Editors （Editorial Board of EET）： Prof. Qiang Li, Aarhus University and University of Electronic Science and Technology of China, qli@uestc.edu.cn Prof. Terrence Mak, The Chinese University of Hong Kong, stmak@cse.cuhk.edu.hk
文摘Terahertz waves, sitting in the gap between the middle infrared and millimeter wave regions, are known as the last vacant area of the electromagnetic spectrum that has not quite been understood and brought into applications. The Terahertz region has been the focus of research worldwide since early 1990s. Due to their unique characteristics, Terahertz technologies have a wide range of applications, such as hazard detection, high speed data communications, radio astronomy, and biomedical imaging.
文摘From energy generation to transportation, from energy distribution to storage, from semiconductor processing to communications, and from portable devices to data centers, energy consumption has grown to be a major limitation to usability and performance. Therefore, energy-efficient technologies become an active research area motivated by energy necessity and environmental concerns. With energy-efficient technologies, a number of epoch-making technical approaches can be expected. Energy efficiency technologies are affecting all forms of energy conversion and all aspects of life.
文摘During the past few years, the terahertz （THz） frequency regime has had renewed scientific and technological interest because of recent breakthroughs in the areas of high power sources, sensitive detectors, novel materials, and high resolution video imaging. Because it lies between the radio frequencies and infrared wavelengths, the terahertz electromagnetic region was thought to be promising for practical applications （300 micrometers wavelength corresponds to 1 THz frequency）, but it suffered from very high attenuation through the atmosphere （above 1 dB/meter）, and was found to be difficult to generate, modulate, and detect. On the other hand, many non-polar dielectric materials are transparent to THz waves,
文摘Terahertz waves, sitting in the gap between the middle infrared and millimeter wave regions, are known as the last vacant area of the electromagnetic spectrum that has not quite been understood and brought into applications. The Terahertz region has been the focus of research worldwide since early 1990s. Due to their unique characteristics, Terahertz technologies have a wide range of applications, such as hazard detection, high speed data communications, radio astronomy, and biomedical imaging.
文摘Terahertz wave, sitting in the gap between middle infrared and millimeter wave, has been known as the last vacant area in spectrum that has not been quite understood and brought into applications. It has been the focus of research worldwide since early 1990s. Due to the unique characteristics of Terahertz wave, Terahertz technologies have a wide range of applications, such as hazard detection, high speed data communications, radio astronomy, biomedical imaging, etc.
文摘Guest Editors （Editorial Board of EET）：Prof. Wei-Dong He Univ. of Electron. Sci. ＆ Tech. of China weidong.he@uestc.edu.cnProf. Terrenee Mak The Chinese Univ. ofHong Kong, stmak@cse.cuhk.edu.hkProf. Qiang Li Univ. of Electron. Sci. ＆ Tech. of China qli@uestc.edu.cnProf. Wei-Sheng Zhao Centre National de la Recherche Scientifique （National Center for Scientific Research） weisheng.zhao@u-psud, fr From energy generation to transportation, from energy distribution to storage, from semiconductor processing to communications, and from portable devices to data centers, energy consumption has grown to be a major limitation to usability and performance. Therefore, energy-efficient technologies become an active research area motivated by energy necessity and environmental concerns. With energy-efficient technologies, a number of epoch-making technical approaches can be expected. Energy efficiency technologies are affecting all forms of energy conversion and all aspects of life.
文摘Digital transformation generally refers to the process of change in business and society,based on the omnipresence of sensors,networks,information,andcommunication technology.Ever shorter development and innovation cycles are a characteristic feature of this process,which is currently influencing all industries and all areas of life,be it industrial
文摘In the past few years, energy-efficient technologies get more and more scientific and technological interest as the energy bottleneck stops the ＂Moore＇s law＂ according to the reports of International Roadmap for Semiconductors （ITRS）. Moreover, people start to take care seriously of the environmental impact due to the Dower dissioation.
文摘Green technologies refer to environmentally sustainable approaches to our daily lifestyle, industry, computing, IT, and literally everything. As the enabling technology, the electronics, including circuits, systems, and devices, are the key areas of research interests in green technologies. To be green means lower power and higher energy efficiency in the user＇s side and better management of energy sources in the provider＇s side. In the recent several years, the energy-efficient devices, circuits, and systems have received considerable attention in both academia and industry. It has been a clear trend that it is and will continue to be an area of extensive research interests in the coming years. In connection with the above view, and being invited by the Editor, Ms. Jasmine Xuan Xie, we have proposed this Special Section on Green Technologies：
文摘As global energy demands continue increasing, the constant improvement of energy efficiency has been a consensus in the world wide and received more and more attention from not only the technical but also the sociological, economic, and political sectors. Energy efficient technologies have been not only transforming the way that energy is produced, delivered, and consumed, but also changing every aspect of our life and even the future.
文摘Energy consumption has been one of the major challenges and concerns for the electronic devices design, especially in high-performance multi- and many-core systems. A highly integrated many-core chip is prone to be extremely high-power consumption that exceeds the chip＇s power budget set leaded by cooling, packaging and/or the capacity of the power supply. When this situation happens, various parts of the many-core chip will have to be deliberately switched off （darkened） so that the chip is still in compliance with its power budget, which is referred as ＂dark silicon＂. Therefore, the research on energy efficient computing is a current trend and will continue to be an active area in the coming years.
文摘The electric industry is being transformed from acentralized network to one that is less centralized andallows more consumer interaction in the form of a smart grid.
文摘Since decades, the global electricity demand shows only one direction： a considerable constant increase every year. But the unlimited growth in energy consumption is discussed increasingly critical, not only primarily in terms of limitations but also in terms of more efficient, more intelligent, and more sustainable usage of energy. Energy-efficient technologies （EET） and renewable energy technologies are already in a competitive position in different markets, and they are also actively embedded in scientific research. Meanwhile,
文摘It is no secret--the world as it is today only runs with energy; and it is also no secret that the world is faced with steadily increasing energy demands. The reduction of dependence on fossil fuels is a global goal. To achieve this goal three paths have to be considered： First, the substitution of fossil fuels with renewable energy; secondly, the increase in energy efficiency and the expansion of opportunities for energy storage; and thirdly, to find solutions to the associated socio-economic challenges.
基金Item Sponsored by National Natural Science Foundation of China(51304017)National Key Technology Research and Development Program of the 12th Five-year Plan of China(2012BAF04B02)Fundamental Research Funds for Central Universities of China(FRF-SD-12-013B)
文摘Rectangular section control technology （RSCT） was introduced to achieve high-precision profile control during silicon steel rolling. The RSCT principle and method were designed, and the whole RSCT control strategy was developed. Specifically, RSCT included roll contour design, roiling technology optimization, and control strategy development, aiming at both hot strip mills （HSMs） and cold strip mills （CSMs）. Firstly, through the high-performance variable crown （HVC） work roll optimization design in the upper-stream stands and the limited shifting technology for schedule-free rolling in the downstream stands of HSMs, a hot strip with a stable crown and limited wedge, ：local spot, and single wave was obtained, which was suitable for cold rolling. Secondly, an approximately rectangular section was obtained by edge varying contact （EVC） work roll contour design, edge-drop setting control, and. closed loop control in the upper-stream, stands of CSMs. Moreover, complex-mode flatness control was realized by coordinating multiple shape-control methods in the downstream stands of CSMs. In addition, the RSCT approach was applied in several silicon-steel production plants, where an outsicanding performance and remarkable economic benefits were observed.
文摘Terahertz waves, sitting in the gap between the middle infrared and millimeter wave regions, are known as the last vacant area of the electromagnetic spectrum that has not quite been understood and brought into applications. The Terahertz region has been the focus of research worldwide since early 1990s. Due to their unique characteristics, Terahertz technologies have a wide range of applications, such as hazard detection, high speed data communications, radio astronomy, and biomedical imaging.
文摘Green Technologies： Energy-Efficient Circuits, Systems, and Devices JEST （International）, Journal of Electronic Science and Technology, is a peer-reviewed periodical devoted to the purpose of providing rapid publication of original and significant contributions relating to the most highlight areas in electronic and information technology fields. With great honor, the Journal has published the contributions from more than 30 countries and regions. JEST is a DOAJ journal, indexed by EI in INSPEC, and also included in CAS, CNKI, Sciencepaper Online, etc. Green technologies refer to environmentally sustainable approaches to our daily lifestyle, industry, computing, IT, and literally everything. As the enabling technology, the electronics, including circuits, systems, and devices, are the key areas of research interests in green technologies. After publishing in this issue a special section on Green Technologies： Energy-Efficient Circuits, Systems, and Devices, JEST continuously seeks original contributions in this area to promote the deep researches and development of energy-efficient technologies and therefore to bring more valuable resources back to our authors and readers.
