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Is quantum capacitance in graphene a potential hurdle for device scaling？

Nano research 2014年第4期7卷 453-461页

作者： Jaeho Lee Hyun-Jong Chung David H. Seo Jaehong Lee Hyungcheol Shin Sunae Seo Seongjun Park Sungwoo Hwang Kinam Kim Samsung Advanced Institute of Technology Samsung Electronics Yongin-Si Gyeonggi-Do 446-712 Korea Inter-University Semiconductor Research Center (ISRC) School of Electrical Engineering and Computer Science Seoul National University Seoul 151-742 Korea Division of Quantum Phases and Devices Department of Physics Konkuk University Seou1143-701 Korea Semiconductor R&D Center Somsung Electronics Hwasung-City Gyeonggi-Do 446-711 Korea Department of Physics Sejong University Seou1143-74 7 Korea Memory Division Samsung Electronics Hwasung-City Gyeonggi-Do 446-711 Korea

Transistor size is constantly being reduced to improve performance as well as power consumption. For the channel length to be reduced, the corresponding gate dielectric thickness should also be reduced. Unfortunately, graphene devices are more complicated due to an extra capacitance called quantum capacitance （CQ） which limits the effective gate dielectric reduction. In this work, we analyzed the effect of CQ on device-scaling issues by extracting it from scaling of the channel length of devices. In contrast to previous reports for metal-insulator- metal structures, a practical device structure was used in conjunction with direct radio-frequency field-effect transistor measurements to describe the graphene channels. In order to precisely extract device parameters, we reassessed the equivalent circuit, and concluded that the on-state model should in fact be used. By careful consideration of the underlap region, our device modeling was shown to be in good agreement with the experimental data. CQ contributions to equivalent oxide thickness were analyzed in detail for varying impurity concentrations in graphene. Finally, we were able to demonstrate that despite contributions from CQ, graphene＇s high mobility and low-voltage operation allows for ~raphene channels suitable for next generation transistors.

关键词： graphene equivalent circuit quantum capacitance intrinsic delay

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Highlights from the 11th ISCB Student Council Symposium 2015. Dublin, Ireland. 10 July 2015

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BMC bioinformatics 2016年第3期17 Suppl 3卷 95页

作者： Katie Wilkins Mehedi Hassan Margherita Francescatto Jakob Jespersen R. Gonzalo Parra Bart Cuypers Dan DeBlasio Alexander Junge Anupama Jigisha Farzana Rahman Griet Laenen Sander Willems Lieven Thorrez Yves Moreau Nagarajan Raju Sonia Pankaj Chothani C. Ramakrishnan Masakazu Sekijima M. Michael Gromiha Paddy J Slator Nigel J Burroughs Przemysław Szałaj Zhonghui Tang Paul Michalski Oskar Luo Xingwang Li Yijun Ruan Dariusz Plewczynski Giulia Fiscon Emanuel Weitschek Massimo Ciccozzi Paola Bertolazzi Giovanni Felici Pieter Meysman Manu Vanaerschot Maya Berg Hideo Imamura Jean-Claude Dujardin Kris Laukens Westa Domanova James R. Krycer Rima Chaudhuri Pengyi Yang Fatemeh Vafaee Daniel J. Fazakerley Sean J. Humphrey David E. James Zdenka Kuncic Plant Pathology and Plant-Microbe Biology Section School of Integrative Plant Science Cornell University Ithaca USA Graduate Field of Computational Biology Cornell University Ithaca USA School of Computing & Mathematics University of South Wales Cardiff UK Department of Genome Biology for Neurodegenerative Diseases German Center for Neurodegenerative Diseases (DZNE) within the Helmholtz Association ᅟ Germany Department of Surgery Massachusetts General Hospital The Broad Institute of MIT and Harvard Boston USA Department of Systems Biology Technical University of Denmark Kemitorvet Denmark Protein Physiology Lab Facultad de Ciencias Exactas y Naturales Universidad de Buenos Aires Buenos Aires Argentina Molecular Parasitology Unit (MPU) Institute of Tropical Medicine Antwerp Belgium Advanced Database Research and Modeling (ADReM) research group University of Antwerp Antwerpen Belgium Department of Computer Science University of Arizona Tucson USA Department of Veterinary Clinical and Animal Sciences Center for non-coding RNA in Technology and Health University of Copenhagen Copenhagen Denmark University College Dublin Dublin Ireland Department of Electrical Engineering (ESAT) STADIUS Center for Dynamical Systems Signal Processing and Data Analytics KU Leuven Leuven Belgium Minds Medical IT Department Leuven Belgium Scientific Institute of Public Health (WIV-ISP) Platform of Biotechnology and Molecular Biology (PBB) Brussels Belgium Department of Development and Regeneration @ Kulak KU Leuven Kortrijk Belgium Department of Biotechnology Bhupat and Jyoti Metha School of Biosciences Indian Institute of Technology Madras Chennai India Philips Research North America Briarcliff Manor USA Global Scientific Information and Computing Center (GSIC) Tokyo Institute of Technology Tokyo Japan Systems Biology Centre University of Warwick Senate House Coventry UK Systems Biology Doctoral Training Centre University of Warwick Senate House Coventry UK Center for B

A1 Highlights from the eleventh ISCB Student Council Symposium 2015 Katie Wilkins, Mehedi Hassan, Margherita Francescatto, Jakob Jespersen, R. Gonzalo Parra, Bart Cuypers, Dan DeBlasio, Alexander Junge, Anupama Jigisha, Farzana Rahman O1 Prioritizing a drug’s targets using both gene expression and structural similarity Griet Laenen, Sander Willems, Lieven Thorrez, Yves Moreau O2 Organism specific protein-RNA recognition: A computational analysis of protein-RNA complex structures from different organisms Nagarajan Raju, Sonia Pankaj Chothani, C. Ramakrishnan, Masakazu Sekijima; M. Michael Gromiha O3 Detection of Heterogeneity in Single Particle Tracking Trajectories Paddy J Slator, Nigel J Burroughs O4 3D-NOME: 3D NucleOme Multiscale Engine for data-driven modeling of three-dimensional genome architecture Przemysław Szałaj, Zhonghui Tang, Paul Michalski, Oskar Luo, Xingwang Li, Yijun Ruan, Dariusz Plewczynski O5 A novel feature selection method to extract multiple adjacent solutions for viral genomic sequences classification Giulia Fiscon, Emanuel Weitschek, Massimo Ciccozzi, Paola Bertolazzi, Giovanni Felici O6 A Systems Biology Compendium for Leishmania donovani Bart Cuypers, Pieter Meysman, Manu Vanaerschot, Maya Berg, Hideo Imamura, Jean-Claude Dujardin, Kris Laukens O7 Unravelling signal coordination from large scale phosphorylation kinetic data Westa Domanova, James R. Krycer, Rima Chaudhuri, Pengyi Yang, Fatemeh Vafaee, Daniel J. Fazakerley, Sean J. Humphrey, David E. James, Zdenka Kuncic

关键词： Visceral Leishmaniasis Feature Selection Method Frequent Itemset Mining Leishmania Donovani Student Council

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Epidermal Electronics: Miniaturized Flexible Electronic Systems with Wireless Power and Near‐Field Communication Capabilities (Adv. Funct. Mater. 30/2015)

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Advanced Functional Materials 2015年第30期25卷

作者： Jeonghyun Kim Anthony Banks Zhaoqian Xie Seung Yun Heo Philipp Gutruf Jung Woo Lee Sheng Xu Kyung‐In Jang Fei Liu Gregory Brown Junghyun Choi Joo Hyun Kim Xue Feng Yonggang Huang Ungyu Paik John A. Rogers Department of Materials Science and Engineering Frederick Seitz Materials Research Laboratory University of Illinois at Urbana–Champaign Urbana IL 61801 USA Department of Materials Science and Engineering Department of Energy Engineering Hanyang University Seoul 133‐791 Republic of Korea Department of Mechanical Engineering Civil and Environmental Engineering Center for Engineering and Health and Skin Disease Research Center Northwestern University Evanston IL 60208 USA AML Department of Engineering Mechanics Center for Mechanics and Materials Tsinghua University Beijing 100084 China Functional Materials and Microsystems Research Group School of Electrical and Computer Engineering RMIT University Melbourne VIC 3000 Australia

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Corrigendum to: Continuous in situ X-ray reflectivity investigation on epitaxial growth of InGaN by metalorganic vapor phase epitaxy [J. Cryst. Growth 407 (2014) 68–73]

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Journal of Crystal Growth 2015年 418卷 185-185页

作者： Guangxu Ju Shingo Fuchi Masao Tabuchi Hiroshi Amanoa Yoshikazu Takeda Akasaki Research Center and Department of Electrical Engineering and Computer Science Graduate School of Engineering Nagoya University Furo-cho Chikusa-ku Nagoya 464-8603 Japan College of Science and Engineering Aoyamo Gakuin University 5-10-1 Fuchinobe Chuo-ku Sagamihara-shi Kanagawa 252-5258 Japan Synchrotron Radiation Research Center Nagoya University Furo-cho Chikusa-ku Nagoya 464-8603 Japan Synchrotron Radiation Center Aichi Science and Technology Foundation Seto Aichi 489-0965 Japan Nagoya Industrial Science Research Institute Nagoya Aichi 464-0819 Japan

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Voltage differential feedback control for three-phase PV inverter based on repetitive control

Voltage differential feedback control for three-phase PV inv...

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IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG)

作者： Hao Lu Qunjing Wang Quan Chen Guoli Li Cungang Hu Changbao Zheng Guanghui Fang Hao Meng National Engineering Laboratory of Energy-Saving Motor & Control Technology Anhui University China Engineering Research Center of Power Quality Ministry of Educationz Anhui University China Anhui Province Laboratory of Electrical Economize and Safety Anhui University China Collaborative Innovation Center of Industrial Energy-Saving and Power Quality Control Anhui University China School of Communication and Control Engineering Jiangnan University China School of Information and Computer Science Anhui Agricultural University China

Voltage differential feedback control system based on repetitive control is proposed in this paper. The scheme, which can improve the dynamic characteristic and steady state performance by Capacitor voltage as outer loop while its differential as inner loop without current sensor, is achieved on a three-phase PV inverter with TMS320F2808. Two different control strategies, traditional and repetitive control , have been applied in three-phase PV inverter platform. The experiment results indicate repetitive control system has a faster dynamic response and a more accurate output regulation than those of traditional one.

关键词： Capacitors Voltage control Inverters control systems Educational institutions Process control Power system dynamics

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Pedestrian-Vehicular Collision Avoidance Based on Vision System

Pedestrian-Vehicular Collision Avoidance Based on Vision Sys...

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17th International IEEE Conference on Intelligent Transportation Systems & The Asia-Pacific Council on Systems engineering Conference 2014

作者： Zhijun Chen Chaozhong Wu Nengchao Lyu Gang Liu Yi He Intelligent Transport Systems Research Center Wuhan University of Technology Engineering Research Center for Transportation Safety Ministry of Education Beijing Key Laboratory for Cooperative Vehicle Infrastructure Systems and Safety Control School of Computer Science and Technology Wuhan University of Technology

Vehicle-pedestrian collision avoidance is an important issue on intelligent vehicles research *** pedestrian detection and collision avoidance were concentrated by previously many studies,there are many problems about the collision prediction and *** on pedestrian detection,the trajectory prediction and time to collision(TTC) still needs to be further studied to prevent vehicle-pedestrian *** this study,a monocular camera with low cost was *** well performance of pedestrian detection was *** on this detection system,a model of pedestrian trajectory prediction was ***,the extended Kalman filter was used to predict motion of *** on trajectory prediction,time to collision range(TTCR) was proposed identify three levels risks,including safe,potential collision and *** this study,the on-road experiments were conducted to validate the proposed *** experimental result shows that the TTCR is more reasonable and safe to apply in vehicle-pedestrian collision avoidance.

关键词： Pedestrian detection,pedestrian safety,time to collision range(TTCR),extended Kalman filter

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46.1:Invited Paper: Recent Progress of Light-Emitting Diodes Based on Colloidal Quantum Dots

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SID Symposium Digest of Technical Papers 2015年第1期46卷

作者： Changhee Lee Myeongjin Park Jaehoon Lim Heeyoung Jung Jeonghun Kwak Wan Ki Bae Kookheon Char Seonghoon Lee School of Electrical and Computer Engineering Inter-university Semiconductor Research Center Seoul National University Seoul 151-744 Korea Department of Electronics Engineering Dong-A University Busan 604-714 Korea Photo-Electronic Hybrids Research Center Korea Institute of Science and Technology Seoul 136-791 Korea School of Chemical and Biological Engineering Center for Functional Polymer Thin films Seoul National University Seoul 151-744 Korea Department of Chemistry Seoul National University Seoul 151-747 Korea

We report very efficient red, green, blue, and white light-emitting diodes based on colloidal quantum dots (QLEDs) using an inverted device architecture. We also review recent research progress of QLEDs and discuss is... 详细信息

关键词： Quantum dots Quantum dot light-emitting diodes (QLEDs) Inverted device architecture

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Ultimate boundedness of droop controlled microgrids with secondary loops

Ultimate boundedness of droop controlled microgrids with sec...

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Australian control Conference (AUCC)

作者： Rahmat Heidari Maria M. Seron Julio H. Braslavsky Priority Research Centre for Complex Dynamic Systems and Control (CDSC) School of Electrical Engineering and Computer Science The University of Newcastle Callaghan NSW Australia Australian Commonwealth Scientific and Industrial Research Organisation (CSIRO) Energy Flagship Newcastle NSW Australia

In this paper we study theoretical properties of inverter-based microgrids controlled via primary and secondary loops. Stability of these microgrids has been the subject of a number of recent studies. Conventional approaches based on standard hierarchical control rely on time-scale separation between primary and secondary control loops to show local stability of equilibria. In this paper we show that (i) frequency regulation can be ensured without assuming time-scale separation and, (ii) ultimate boundedness of the trajectories starting inside a region of the state space can be guaranteed under a condition on the inverters power injection errors. The trajectory ultimate bound can be computed by simple iterations of a nonlinear mapping and provides a certificate of the overall performance of the controlled microgrid.

关键词： Microgrids Power system stability Stability analysis Inverters Frequency control Trajectory Laplace equations

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A web-based, hospital-wide health care-associated bloodstream infection surveillance and classification system: Development and evaluation

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JMIR Medical Informatics 2015年第3期3卷 e31页

作者： Tseng, Yi-Ju Wu, Jung-Hsuan Lin, Hui-Chi Chen, Ming-Yuan Ping, Xiao-Ou Sun, Chun-Chuan Shang, Rung-Ji Sheng, Wang-Huei Chen, Yee-Chun Lai, Feipei Chang, Shan-Chwen Graduate Institute of Biomedical Electronics and Bioinformatics National Taiwan University Taipei Taiwan Computational Health Informatics Program Boston Children's Hospital Boston MA United States Department of Electrical Engineering National Taiwan University Taipei Taiwan Center for Infection Control National Taiwan University Hospital Taipei Taiwan National Taiwan University Hospital Information Systems Office Taipei Taiwan Department of Computer Science and Information Engineering National Taiwan University Taipei Taiwan Department of Internal Medicine National Taiwan University Hospital and College of Medicine Taipei Taiwan National Health Research Institutes National Institute of Infectious Diseases and Vaccinology Miaoli Taiwan

Background: Surveillance of health care-associated infections is an essential component of infection prevention programs, but conventional systems are labor intensive and performance dependent. Objective: To develop an automatic surveillance and classification system for health care-associated bloodstream infection (HABSI), and to evaluate its performance by comparing it with a conventional infection control personnel (ICP)-based surveillance system. Methods: We developed a Web-based system that was integrated into the medical information system of a 2200-bed teaching hospital in Taiwan. The system automatically detects and classifies HABSIs. Results: In this study, the number of computer-detected HABSIs correlated closely with the number of HABSIs detected by ICP by department (n=20;r=.999 P<.001) and by time (n=14;r=.941;P<.001). Compared with reference standards, this system performed excellently with regard to sensitivity (98.16%), specificity (99.96%), positive predictive value (95.81%), and negative predictive value (99.98%). The system enabled decreasing the delay in confirmation of HABSI cases, on average, by 29 days. Conclusions: This system provides reliable and objective HABSI data for quality indicators, improving the delay caused by a conventional surveillance system. © 2020 JMIR Publications Inc. All rights reserved.

关键词： Health care-associated infection Infection control Information systems Surveillance Web-based services

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Practice of PBL in the Reading Teaching Strategies

Practice of PBL in the Reading Teaching Strategies

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2014 International Conference on Information Technology and Career Education

作者： Yingting Wang Jian Wang Hao Sheng Nanjing Yuying Foreign Language School Cyber Physical System R&D Center The Third Research Institute of Ministry of Public Security School of Electronic Information and Electrical Engineering Shanghai Jiao Tong University School of Computer Science and Engineering Beihang University

Combined PBL with some advanced foreign reading teaching strategies,we choose the most suitable way to give lessons and bring up students ability to think of *** on teaching experience for several years,we propose some teaching strategies in English reading teaching to help students improve the efficiency and accuracy of reading with the help of *** practice,students'innovation and cooperation are strengthened and the width and depth of their questions are improved.

关键词： PBL problem-based learning reading teaching strategies

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