检索结果-内蒙古大学图书馆

34th Chinese Control Conference, CCC 2015

作者： Chunzhi, Li Jianying, Yang Yifan, Liu State Key Laboratory for Turbulence and Complex Systems Department of Mechanics and Engineering Science College of Engineering Peking University Beijing China National Key Laboratory of Science and Technology on Aerospace Intelligence Control Beijing China

ISBN: (纸本)9789881563897

By taking NACA0015 airfoil as an example, we study synthetic jets' effect on the aerodynamic performance, then propose the ideas and concrete methods of using synthetic jet to flight roll control at high angle of attack, which replaces the traditional aileron completely. According to the influence by the peak velocity, frequency, layout position, exit angles of synthetic jets and the angle of attack on lift, the optimal parameter combination was obtained. Based on the optimal parameter combination we provided a scheme that uses peak velocity of synthetic jet as the input. We also designed a synthetic jet controller for flight roll control at high angle of attack, which adopts the Robust LQR method to realize the stability control of roll (57.3 deg) at high angle of attack (18 deg). The simulation shows that the proposed control method has good control performance, and it overcomes the difficulty of using traditional aileron for flight roll control at high angle of attack. © 2015 Technical Committee on Control Theory, Chinese Association of Automation.

关键词： high angle of attack roll control synthetic jet

来源：评论

学校读者我要写书评

暂无评论

Integrated design of aerodynamics, structures, propulsion, and control based on the multidisciplinary optimization method 34

Integrated design of aerodynamics, structures, propulsion, a...

引用

34th Chinese Control Conference, CCC 2015

作者： Xiaoqian, Wei Jianying, Yang State Key Laboratory for Turbulence and Complex Systems Department of Mechanics and Engineering Science College of Engineering Peking University Beijing China National Key Laboratory of Science and Technology on Aerospace Intelligence Control Beijing China

ISBN: (纸本)9789881563897

This paper provides a new improved multidisciplinary optimization algorithm with better performance and discusses its application for aircraft synthetic design. The new iterative framework combines linear quadratic (LQ) optimal control method, structures, aerodynamics and propulsion to design synthetic optimal problem, which reduces redundant system analysis, avoids local optimization, and improves the traditional design method which separated aerodynamic design and control method. Using the method of diagonal convergence, improved algorithm can accelerate the convergence speed and ensure that the sensitivity matrix does not tend to be singular. The simulation shows that this new closed-loop integrated method can achieve stable flight optimization results. © 2015 Technical Committee on Control Theory, Chinese Association of Automation.

关键词： Integrated Design LQ Optimal Control Multidisciplinary Design Optimization

来源：评论

学校读者我要写书评

暂无评论

The Robust Roll Control Using only Synthetic Jet Actuators in High-Angle-of-Attack Flight

The Robust Roll Control Using only Synthetic Jet Actuators i...

引用

第三十四届中国控制会议

作者： LI Chunzhi Yang Jianying LIU Yifan State Key Laboratory for Turbulence and Complex Systems Department of Mechanics and Engineering ScienceCollege of EngineeringPeking University National Key Laboratory of Science and Technology on Aerospace Intelligence Control

ISBN: (纸本)9781467374439

By taking NACA0015 airfoil as an example, we study synthetic jets' effect on the aerodynamic performance, then propose the ideas and concrete methods of using synthetic jet to flight roll control at high angle of attack, which replaces the traditional aileron completely. According to the influence by the peak velocity, frequency, layout position, exit angles of synthetic jets and the angle of attack on lift, the optimal parameter combination was obtained. Based on the optimal parameter combination we provided a scheme that uses peak velocity of synthetic jet as the input. We also designed a synthetic jet controller for flight roll control at high angle of attack, which adopts the Robust LQR method to realize the stability control of roll(57.3 deg) at high angle of attack(18 deg). The simulation shows that the proposed control method has good control performance, and it overcomes the difficulty of using traditional aileron for flight roll control at high angle of attack.

关键词： synthetic jet,roll control,high angle of attack

来源：评论

学校读者我要写书评

暂无评论

Integrated Design of Aerodynamics,Structures,Propulsion,and Control Based on the Multidisciplinary Optimization Method

Integrated Design of Aerodynamics,Structures,Propulsion,and ...

引用

第三十四届中国控制会议

作者： Wei Xiaoqian Yang Jianying State Key Laboratory for Turbulence and Complex Systems Department of Mechanics and Engineering ScienceCollege of EngineeringPeking University National Key Laboratory of Science and Technology on Aerospace Intelligence Control

ISBN: (纸本)9781467374439

This paper provides a new improved multidisciplinary optimization algorithm with better performance and discusses its application for aircraft synthetic design. The new iterative framework combines linear quadratic(LQ) optimal control method,structures, aerodynamics and propulsion to design synthetic optimal problem, which reduces redundant system analysis, avoids local optimization, and improves the traditional design method which separated aerodynamic design and control method. Using the method of diagonal convergence, improved algorithm can accelerate the convergence speed and ensure that the sensitivity matrix does not tend to be singular. The simulation shows that this new closed-loop integrated method can achieve stable flight optimization results.

关键词： Multidisciplinary Design Optimization,LQ Optimal Control,Integrated Design

来源：评论

学校读者我要写书评

暂无评论

Autonomous migration of virtual machine based on OpenStack

引用

International Journal of Hybrid Information technology 2016年第8期9卷 65-84页

作者： Zhou, Li Yu, Zhuoer Zhang, Jilin Wan, Jian Wu, Yusen School of Computer and Technology Hangzhou Dianzi University Hangzhou310018 China Key Laboratory of Complex Systems Modeling and Simulation Ministry of Education Hangzhou China College of Electrical Engineering Zhejiang University Hangzhou310058 China School of Information and Electronic engineering Zhejiang University of Science & Technology Hangzhou310023 China Zhejiang Provincial Engineering Center on Media Data Cloud Processing and Analysis HangzhouZhejiang China

For the problem of compute nodes load unbalance leads to the overload node impact VM performance and the underload node waste electrical energy. Dynamic VM consolidation is an efficient approach for improving the utilization of servers and reducing energy costs. In this paper, we introduce dynamic consolidation into OpenStack and implement AMVM based on OpenStack. AMVM collect and analyze all performance data of VM and compute node in OpenStack. Then AMVM automatically schedules VM live migrate to the most appropriate node according to the real-time load of all compute nodes. Then we use hybrid-copy instead of pre-copy in AMVM to improve the efficiency of VM live migration. Finally, we analyze the performance of hybrid-copy, hybrid-copy can reduce page faults compared with post-copy and reduce total data transferred compared with pre-copy. © 2016 SERSC.

关键词： Virtual machine

来源：评论

学校读者我要写书评

暂无评论

An efficient storage technology for object-based distributed storage system

International Journal of Control and Automation

引用

International Journal of Control and Automation 2015年第11期8卷 337-348页

作者： Zhang, Jilin Su, Yucheng Wan, Jian Zhou, Li Wang, Jue Zhang, Lei College of Electrical Engineering Zhejiang University Hangzhou China School of Computer Science and Technology Hangzhou Dianzi University Hangzhou China Key Laboratory of Complex Systems Modeling and Simulation Ministry of Education China Supercomputing Center of Computer Network Information Center Chinese Academy of Sciences Beijing China Computer Science Department Beijing University of Civil Engineering and Architecture Beijing China

There have two effective ways to improve the overall efficiency of the object-based distributed storage system, one is network caching technology and the other is metadata server cluster load balancing strategy. Under the heterogeneous storage environments, object-based distributed file system face the key challenge of lacking caching mechanism for the high-frequency access files, metadata server load imbalance also reduce the overall efficiency. To address these challenges, we discuss the design and implementation of an object-based distributed file storage caching system, and propose a weight-based metadata server cluster load balancing strategy. It effectively improve the metadata processing capacity. Based on the results, it demonstrated the feasibility and the efficiency of our methods. © 2015 SERSC.

关键词： Metadata

来源：评论

学校读者我要写书评

暂无评论

Research and implementation of CDP disaster recovery system based on oracle

International Journal of Control and Automation

引用

International Journal of Control and Automation 2015年第11期8卷 325-336页

作者： Ren, Yongjian Ye, Jiaolong Zhang, Jilin Zhou, Li Wang, Jue Zhang, Lei School of Computer Science and Technology Hangzhou Dianzi University Hangzhou China Key Laboratory of Complex Systems Modeling and Simulation Ministry of Education China College of Electrical Engineering Zhejiang University Hangzhou China Supercomputing Center of Computer Network Information Center Chinese Academy of Sciences Beijing China Computer Science Department Beijing University of Civil Engineering and Architecture Beijing China

The OraCDP disaster recovery system uses CDP disaster recovery technology based on the combination of block level, combining with the communication coupling between the underlying I/O and Oracle database. The experimental results show that the OraCDP system can not only maintain the normal operation of the original system without any negative influence, but also guarantee the recovery of data and service at specific time quickly, fully and accurately. © 2015 SERSC.

关键词： Recovery

来源：评论

学校读者我要写书评

暂无评论

Genetic analysis of over 1 million people identifies 535 new loci associated with blood pressure traits (vol 50, pg 1412, 2018)

引用

NATURE GENETICS 2018年第12期50卷 1755-1755页

作者： Evangelou, Evangelos Warren, Helen R. Mosen-Ansorena, David Mifsud, Borbala Pazoki, Raha Gao, He Ntritsos, Georgios Dimou, Niki Cabrera, Claudia P. Karaman, Ibrahim Fu Liang Ng Evangelou, Marina Witkowska, Katarzyna Tzanis, Evan Hellwege, Jacklyn N. Giri, Ayush Edwards, Digna R. Velez Sun, Yan V. Cho, Kelly Gaziano, J. Michael Wilson, Peter W. F. Tsao, Philip S. Kovesdy, Csaba P. Esko, Tonu Magi, Reedik Milani, Lili Almgren, Peter Boutin, Thibaud Debette, Stephanie Ding, Jun Giulianini, Franco Holliday, Elizabeth G. Jackson, Anne U. Li-Gao, Ruifang Lin, Wei-Yu Luan, Jian'an Mangino, Massimo Oldmeadow, Christopher Prins, Bram Peter Qian, Yong Sargurupremraj, Muralidharan Shah, Nabi Surendran, Praveen Theriault, Sebastien Verweij, Niek Willems, Sara M. Zhao, Jing-Hua Amouyel, Philippe Connell, John de Mutsert, Renee Doney, Alex S. F. Farrall, Martin Menni, Cristina Morris, Andrew D. Noordam, Raymond Pare, Guillaume Poulter, Neil R. Shields, Denis C. Stanton, Alice Thom, Simon Abecasis, Goncalo Amin, Najaf Arking, Dan E. Ayers, Kristin L. Barbieri, Caterina M. Batini, Chiara Bis, Joshua C. Blake, Tineka Bochud, Murielle Boehnke, Michael Boerwinkle, Eric Boomsma, Dorret I. Bottinger, Erwin P. Braund, Peter S. Brumat, Marco Campbell, Archie Campbell, Harry Chakravarti, Aravinda Chambers, John C. Chauhan, Ganesh Ciullo, Marina Cocca, Massimiliano Collins, Francis Cordell, Heather J. Davies, Gail de Borst, Martin H. de Geus, Eco J. Deary, Ian J. Deelen, Joris Del Greco, Fabiola M. Demirkale, Cumhur Yusuf Dorr, Marcus Ehret, Georg B. Elosua, Roberto Enroth, Stefan Erzurumluoglu, A. Mesut Ferreira, Teresa Franberg, Mattias Franco, Oscar H. Gandin, Ilaria Gasparini, Paolo Giedraitis, Vilmantas Gieger, Christian Girotto, Giorgia Goel, Anuj Gow, Alan J. Gudnason, Vilmundur Guo, Xiuqing Gyllensten, Ulf Hamsten, Anders Harris, Tamara B. Harris, Sarah E. Hartman, Catharina A. Havulinna, Aki S. Hicks, Andrew A. Hofer, Edith Hofman, Albert Hottenga, Jouke-Jan Huffman, Jennifer E. Hwang, Shih-Jen Ingelsson, Erik James, Alan Jansen Department of Epidemiology and Biostatistics Imperial College London London UK Department of Hygiene and Epidemiology University of Ioannina Medical School Ioannina Greece William Harvey Research Institute Barts and The London School of Medicine and Dentistry Queen Mary University of London London UK National Institute for Health Research Barts Cardiovascular Biomedical Research Center Queen Mary University of London London UK MRC-PHE Centre for Environment and Health Imperial College London London UK Department of Mathematics Imperial College London London UK Division of Epidemiology Department of Medicine Institute for Medicine and Public Health Vanderbilt Genetics Institute Vanderbilt University Medical Center Tennessee Valley Healthcare System (626)/Vanderbilt University Nashville TN USA Vanderbilt Genetics Institute Vanderbilt Epidemiology Center Department of Obstetrics and Gynecology Vanderbilt University Medical Center Tennessee Valley Health Systems VA Nashville TN USA Department of Epidemiology Emory University Rollins School of Public Health Atlanta GA USA Department of Biomedical Informatics Emory University School of Medicine Atlanta GA USA Massachusetts Veterans Epidemiology Research and Information Center (MAVERIC) VA Boston Healthcare System Boston MA USA Division of Aging Department of Medicine Brigham and Women’s Hospital Department of Medicine Harvard Medical School Boston MA USA Atlanta VAMC and Emory Clinical Cardiovascular Research Institute Atlanta GA USA VA Palo Alto Health Care System Division of Cardiovascular Medicine Stanford University School of Medicine Stanford CA USA Nephrology Section Memphis VA Medical Center and University of Tennessee Health Science Center Memphis TN USA Estonian Genome Center University of Tartu Tartu Estonia Program in Medical and Population Genetics Broad Institute of Harvard and MIT Cambridge MA USA Department Clinical Sciences Malmö Lund University Malmö Sweden MRC Human Genetics Un

High blood pressure is a highly heritable and modifiable risk factor for cardiovascular disease. We report the largest genetic association study of blood pressure traits (systolic, diastolic and pulse pressure) to date in over 1 million people of European ancestry. We identify 535 novel blood pressure loci that not only offer new biological insights into blood pressure regulation but also highlight shared genetic architecture between blood pressure and lifestyle exposures. Our findings identify new biological pathways for blood pressure regulation with potential for improved cardiovascular disease prevention in the future.

关键词： Cardiovascular diseases Genome informatics Genome-wide association studies

来源：评论

学校读者我要写书评

暂无评论

Constraints on non-standard neutrino interactions from borexino phase-ii

arXiv

引用

arXiv 2019年

作者： Agarwalla, S.K. Agostini, M. Altenmüller, K. Appel, S. Atroshchenko, V. Bagdasarian, Z. Basilico, D. Bellini, G. Benziger, J. Bick, D. Bonfini, G. Bravo, D. Caccianiga, B. Calaprice, F. Caminata, A. Cappelli, L. Cavalcante, P. Cavanna, F. Chepurnov, A. Choi, K. D’Angelo, D. Davini, S. Derbin, A. Giacinto, A.Di. Marcello, V.Di. Ding, X.F. Ludovico, A.Di. Noto, L.Di. Drachnev, I. Fomenko, K. Formozov, A. Franco, D. Gabriele, F. Galbiati, C. Gschwender, M. Ghiano, C. Giammarchi, M. Goretti, A. Gromov, M. Guffanti, D. Hagner, C. Hungerford, E. Ianni, Aldo Ianni, Andrea Jany, A. Jeschke, D. Kumaran, S. Kobychev, V. Korga, G. Lachenmaier, T. Laubenstein, M. Litvinovich, E. Lombardi, P. Ludhova, L. Lukyanchenko, G. Lukyanchenko, L. Machulin, I. Manuzio, G. Marcocci, S. Maricic, J. Martyn, J. Meroni, E. Meyer, M. Miramonti, L. Misiaszek, M. Muratova, V. Neumair, B. Nieslony, M. Oberauer, L. Orekhov, V. Ortica, F. Pallavicini, M. Papp, L. Penek, Ö. Pietrofaccia, L. Pilipenko, N. Pocar, A. Raikov, G. Ranucci, G. Razeto, A. Re, A. Redchuk, M. Romani, A. Rossi, N. Rottenanger, S. Schönert, S. Semenov, D. Skorokhvatov, M. Smirnov, O. Sotnikov, A. Sun, C. Suvorov, Y. Takeuchi, T. Tartaglia, R. Testera, G. Thurn, J. Unzhakov, E. Vishneva, A. Vogelaar, R.B. von Feilitzsch, F. Wojcik, M. Wurm, M. Zaimidoroga, O. Zavatarelli, S. Zuber, K. Zuzel, G. Institute of Physics Sachivalaya Marg Sainik School Post Bhubaneswar751005 India Homi Bhabha National Institute Training School Complex Anushakti Nagar Mumbai400085 India International Centre for Theoretical Physics Strada Costiera 11 Trieste34151 Italy Physik-Department and Excellence Cluster Universe Technische Universität München Garching85748 Germany National Research Centre Kurchatov Institute Moscow123182 Russia Institut für Kernphysik Forschungszentrum Jülich Jülich52425 Germany Dipartimento di Fisica Università degli Studi e INFN Milano20133 Italy Chemical Engineering Department Princeton University PrincetonNJ08544 United States Institut für Experimentalphysik Universität Hamburg Hamburg22761 Germany 67010 Italy Physics Department Princeton University PrincetonNJ08544 United States Dipartimento di Fisica Università degli Studi e INFN Genova16146 Italy Physics Department Virginia Polytechnic Institute and State University BlacksburgVA24061 United States Lomonosov Moscow State University Skobeltsyn Institute of Nuclear Physics Moscow119234 Russia Department of Physics and Astronomy University of Hawaii HonoluluHI96822 United States St. Petersburg Nuclear Physics Institute NRC Kurchatov Institute Gatchina188350 Russia Gran Sasso Science Institute L’Aquila67100 Italy Joint Institute for Nuclear Research Dubna141980 Russia AstroParticule et Cosmologie Université Paris Diderot CNRS/IN2P3 CEA/IRFU Observatoire de Paris Sorbonne Paris Cité Paris Cedex 1375205 France Kepler Center for Astro and Particle Physics Universität Tübingen Tübingen72076 Germany Department of Physics University of Houston HoustonTX77204 United States M. Smoluchowski Institute of Physics Jagiellonian University Krakow30348 Poland RWTH Aachen University Aachen52062 Germany Kiev Institute for Nuclear Research Kiev03680 Ukraine Moscow115409 Russia Institute of Physics and Excellence Cluster PRISMA Johannes Gutenberg-Universität Mainz Mai

The Borexino detector measures solar neutrino fluxes via neutrino-electron elastic scattering. Observed spectra are determined by the solar-νe survival probability Pee(E), and the chiral couplings of the neutrino and electron. Some theories of physics beyond the Standard Model postulate the existence of Non-Standard Interactions (NSI’s) which modify the chiral couplings and Pee(E). In this paper, we search for such NSI’s, in particularly neutral-current-like interactions that modify the νe − e and ντ − e couplings, using Borexino Phase ii data. Standard Solar Model predictions of the solar neutrino fluxes for both high- and low-metallicity assumptions are considered. No indication of new physics is found at the level of sensitivity of the detector and constraints on the parameters of the NSI’s are placed. In addition, with the same dataset the value of sin2 θW is obtained with a precision comparable to that achieved in reactor antineutrino experiments. Copyright © 2019, The Authors. All rights reserved.

关键词： Neutrons

来源：评论

学校读者我要写书评

暂无评论

Some mathematical aspects on walking robots stable evolution

Some mathematical aspects on walking robots stable evolution

引用

International Conference on Software, Knowledge Information, Industrial Management and Applications (SKIMA)

作者： Marcel Migdalovici Luige Vladareanu Gabriela Vladeanu Said Broumi Daniela Baran Florentin Smarandache Hongbo Wang Yonfei Feng Robotics and Mechatronics Department Romanian Academy Institute of Solid Mechanics Bucharest Romania Faculty of Science Ben M'Sik University Hassan II Casablanca Morocco Dynamical Systems National Institute of Aircraft Research “Elie Carafoli” Bucharest Romania Department of Mathematics University of New Mexico Gallup NM USA Parallel Robot and Mechatronic System Laboratory of Hebei Province Key Laboratory of Advanced Forging & Stamping Technology and Science of Ministry of Education Yanshan University Qinhuangdao China

ISBN: (纸本)9781509032990

A survey of some author's concepts on the dynamic systems stability regions, in the general case of dynamic systems that depend on parameters is related in the paper. The property of separation of stable regions in the free parameters domain is assumed in the paper as an important property of the environment that is carry out and in the specified case of walking robot analyzed in the paper. The matrix that defines the linear dynamic system has the components of the matrix, assumed to be with real values, and the matrices that intervene in the exposure of the method are also, with real values of the components. We assumed that the matrices from the exposure have the complex values such that the real values are also taken into account as particular case of the complex values. This hypothesis assures a new method of analysis, in the complex domain, on the dynamic systems stability. Our theory on the stability control of the dynamic systems is applied here for specified walking robot model that depend on parameters. The critical position of the walking robot evolution is defined and analyzed on some cases of the walking robot leg, and possible application for robot walking up stairs is exposed. The further way of research is emphasized.

关键词： Legged locomotion Eigenvalues and eigenfunctions Matrices Heuristic algorithms Stability analysis Mathematical model

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：