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
Submission Deadline： 15 October 2010The electric industry is being transformed from a centralized network to one that is less centralized and allows more consumer interaction in the form of a smart grid. A smart grid...Submission Deadline： 15 October 2010The electric industry is being transformed from a centralized network to one that is less centralized and allows more consumer interaction in the form of a smart grid. A smart grid is a power transmission and distribution network that can incorporate millions of sensors all connected through an advanced, two-way communications and data acquisition system to provide real-time monitoring, diagnosis and control. Smart grid enables more efficient, reliable and secure energy service, facilitate grid-integration of renewable systems and energy storage, and better routing of power and demand management. The move to a smarter grid promises to change the industry＇s entire business model and its relationship with all stakeholders, involving and affecting power companies, regulators, energy service providers, technology and automation vendors, and all consumers of electric power.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
Submission Deadline： 10 December 2010Since the introduction of rough sets in 1982 by Professor Zdzislaw Pawlak, we have witnessed great advances in both theory and applications. In order to promote development of rou...Submission Deadline： 10 December 2010Since the introduction of rough sets in 1982 by Professor Zdzislaw Pawlak, we have witnessed great advances in both theory and applications. In order to promote development of rough sets, we are preparing a special issue on ＂Artificial Intelligence with Rough Sets＂ published by JEST （International）, Journal of Electronic Science and Technology, which is a refereed international journal focusing on IT area. The aim of this special issue is to present the current state of the research in this area, oriented towards both theoretical and applications aspects of rough sets.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
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
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
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
E Ink's microcapsules are filled with a clear liquid that holds very small particles.Some particles are black.Some are white.All of the particles have an e- lectrical charge.To make a sheet of electronic paper, en...E Ink's microcapsules are filled with a clear liquid that holds very small particles.Some particles are black.Some are white.All of the particles have an e- lectrical charge.To make a sheet of electronic paper, engineers spread millions of the particle-filled micro- capsules onto a piece of plastic.展开更多
Paper-based devices have attracted extensive attention due to the growing demand for disposable flexible electronics.Herein,we integrate semiconducting devices on cellulose paper substrate through a simple abrasion te...Paper-based devices have attracted extensive attention due to the growing demand for disposable flexible electronics.Herein,we integrate semiconducting devices on cellulose paper substrate through a simple abrasion technique that yields high-performance photodetectors.A solvent-free WS_(2) film deposited on paper favors an effective electron-hole separation and hampers recombination.The as-prepared paper-based WS2 photodetectors exhibit a sensitive photoresponse over a wide spectral range spanning from ultraviolet(365 nm)to near-infrared(940 nm).Their responsivity value reaches up to~270 mA W^(−1) at 35 V under a power density of 35 mW cm^(−2).A high performance photodetector was achieved by controlling the environmental exposure as the ambient oxygen molecules were found to decrease the photoresponse and stability of the WS_(2) photodetector.Furthermore,we have built a spectrometer using such a paperbased WS_(2) device as the photodetecting component to illustrate its potential application.The present work could promote the development of cost-effective disposable photodetection devices.展开更多
简单分析了电动助力转向(EPS)系统的结构与工作原理,介绍了EPS系统无刷直流电机(brushless DC motor,BLDC motor)的电路构成和控制方法。设计开发了采用单片机进行控制,车载蓄电池供电,用MOSFET构成的三相逆变器驱动的EPS控制系统的电...简单分析了电动助力转向(EPS)系统的结构与工作原理,介绍了EPS系统无刷直流电机(brushless DC motor,BLDC motor)的电路构成和控制方法。设计开发了采用单片机进行控制,车载蓄电池供电,用MOSFET构成的三相逆变器驱动的EPS控制系统的电控单元(ECU)。详细介绍了硬件电路和软件的设计,最终通过EPS台架实验,验证了所采用的PWM控制策略对EPS系统助力转向过程的有效控制。该系统实现简单,具有较强的实用性和经济性。展开更多
The liquid metals exhibit both the properties of liquids and metals and have a low melting point near room temperature.As a lowcost and easy-to-obtain flexible substrate,paper has significant advantages for large-area...The liquid metals exhibit both the properties of liquids and metals and have a low melting point near room temperature.As a lowcost and easy-to-obtain flexible substrate,paper has significant advantages for large-area and multilayer flexible circuit fabrication.This has led to a growing interest in liquid metal-based paper electronics among both scientists and industry.In order to promote the development and application of liquid metal-based paper electronics,this review will summarize and analyze the progress from three perspectives,including liquid metal inks,printing methods,and their applications.A variety of liquid metalbased electronic inks are introduced,and their advantages and disadvantages are discussed.Then,a comparison of typical fabrication methods has been presented,including chemical interaction-based selective adhesion and surface roughness-based transfer printing.A number of emerging applications used and expected to be applied to liquid metal-based paper electronics have been demonstrated.Finally,paper electronics based on liquid metals are discussed along with their challenges and opportunities for the further development.In the future,further investigations and applications of paper electronics based on liquid metals are expected.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Submission Deadline： 15 October 2010The electric industry is being transformed from a centralized network to one that is less centralized and allows more consumer interaction in the form of a smart grid. A smart grid is a power transmission and distribution network that can incorporate millions of sensors all connected through an advanced, two-way communications and data acquisition system to provide real-time monitoring, diagnosis and control. Smart grid enables more efficient, reliable and secure energy service, facilitate grid-integration of renewable systems and energy storage, and better routing of power and demand management. The move to a smarter grid promises to change the industry＇s entire business model and its relationship with all stakeholders, involving and affecting power companies, regulators, energy service providers, technology and automation vendors, and all consumers of electric power.
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Submission Deadline： 10 December 2010Since the introduction of rough sets in 1982 by Professor Zdzislaw Pawlak, we have witnessed great advances in both theory and applications. In order to promote development of rough sets, we are preparing a special issue on ＂Artificial Intelligence with Rough Sets＂ published by JEST （International）, Journal of Electronic Science and Technology, which is a refereed international journal focusing on IT area. The aim of this special issue is to present the current state of the research in this area, oriented towards both theoretical and applications aspects of rough sets.
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E Ink's microcapsules are filled with a clear liquid that holds very small particles.Some particles are black.Some are white.All of the particles have an e- lectrical charge.To make a sheet of electronic paper, engineers spread millions of the particle-filled micro- capsules onto a piece of plastic.
基金Felix Carrascoso (ICMM-CSIC) for support with the metal evaporationfunding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (grant agreement n°755655,ERC-StG 2017 project2D-TOPSENSE)+5 种基金the Ministry of Science and Innovation (Spain) through the project PID2020-115566RB-I00support from the National Natural Science Foundation of China under grant No.61704129 and No.62011530438the Key Research and Development Program of Shaanxi (Program No.2021KW-02)Fundamental Research Funds for the Central Universities (JB211409)the grant from China Scholarship Council (CSC) under No.201908610178the support from European Union’s Horizon 2020 research and innovation program under the grant agreement 956813 (2Exciting)。
文摘Paper-based devices have attracted extensive attention due to the growing demand for disposable flexible electronics.Herein,we integrate semiconducting devices on cellulose paper substrate through a simple abrasion technique that yields high-performance photodetectors.A solvent-free WS_(2) film deposited on paper favors an effective electron-hole separation and hampers recombination.The as-prepared paper-based WS2 photodetectors exhibit a sensitive photoresponse over a wide spectral range spanning from ultraviolet(365 nm)to near-infrared(940 nm).Their responsivity value reaches up to~270 mA W^(−1) at 35 V under a power density of 35 mW cm^(−2).A high performance photodetector was achieved by controlling the environmental exposure as the ambient oxygen molecules were found to decrease the photoresponse and stability of the WS_(2) photodetector.Furthermore,we have built a spectrometer using such a paperbased WS_(2) device as the photodetecting component to illustrate its potential application.The present work could promote the development of cost-effective disposable photodetection devices.
文摘简单分析了电动助力转向(EPS)系统的结构与工作原理,介绍了EPS系统无刷直流电机(brushless DC motor,BLDC motor)的电路构成和控制方法。设计开发了采用单片机进行控制,车载蓄电池供电,用MOSFET构成的三相逆变器驱动的EPS控制系统的电控单元(ECU)。详细介绍了硬件电路和软件的设计,最终通过EPS台架实验,验证了所采用的PWM控制策略对EPS系统助力转向过程的有效控制。该系统实现简单,具有较强的实用性和经济性。
基金supported by the Key Research and Development Program of Zhejiang Province(Grant No.2022C04004)。
文摘The liquid metals exhibit both the properties of liquids and metals and have a low melting point near room temperature.As a lowcost and easy-to-obtain flexible substrate,paper has significant advantages for large-area and multilayer flexible circuit fabrication.This has led to a growing interest in liquid metal-based paper electronics among both scientists and industry.In order to promote the development and application of liquid metal-based paper electronics,this review will summarize and analyze the progress from three perspectives,including liquid metal inks,printing methods,and their applications.A variety of liquid metalbased electronic inks are introduced,and their advantages and disadvantages are discussed.Then,a comparison of typical fabrication methods has been presented,including chemical interaction-based selective adhesion and surface roughness-based transfer printing.A number of emerging applications used and expected to be applied to liquid metal-based paper electronics have been demonstrated.Finally,paper electronics based on liquid metals are discussed along with their challenges and opportunities for the further development.In the future,further investigations and applications of paper electronics based on liquid metals are expected.
