检索结果-内蒙古大学图书馆

IEEE Annual Conference on Decision and Control

作者： Wenting Zha Chunjiang Qian Junyong Zhai Shumin Fei Key Laboratory of Measurement and Control of CSE Ministry of Education School of Automation Southeast University Nanjing Jiangsu 210096 China Department of Electrical and Computer Engineering University of Texas at San Antonio San Antonio Texas 78249 USA

ISBN: (纸本)9781479978878

The objective of this paper is to address the linear state-feedback control problem for a family of high-order uncertain nonlinear systems. Based on the adding a power integrator technique, the authors recursively construct a linear controller with dynamic gains, which can be used to deal with the uncertain nonlinear terms and simplify the controller structure. Moreover, it is proved that the proposed control law can globally regulate system states to the origin and guarantee the boundedness of all the signals of the closed-loop system as well. Finally, a simulation example is presented with some comparison with the existing result so as to demonstrate the effectiveness of the proposed design scheme.

关键词： High-order nonlinear systems dynamic linear controller adding a power integrator linear controllers design scheme Uncertain nonlinear system control law State feedback higher-order controller design Closed loop systems state feedback control

来源：评论

学校读者我要写书评

暂无评论

Self-Propulsion: Superfast Near-Infrared Light-Driven Polymer Multilayer Rockets (Small 5/2016)

引用

Small 2016年第5期12卷

作者： Zhiguang Wu Tieyan Si Wei Gao Xiankun Lin Joseph Wang Qiang He State Key Laboratory of Robotics and System (HIT) Micro/Nanotechnology Research Center Harbin Institute of Technology Harbin 150080 China Department of Nanoengineering University of California San Diego La Jolla CA 92093 USA Electrical Engineering and Computer Sciences University of California Berkeley CA 94720 USA

来源：评论

学校读者我要写书评

暂无评论

Introduction

SpringerBriefs in Applied Sciences and Technology

引用

SpringerBriefs in Applied Sciences and Technology 2014年第9783319053790期 1-6页

作者： Yang, Fan Duan, Ping Shah, Sirish L. Chen, Tongwen Tsinghua Laboratory for Information Science and Technology Department of Automation Tsinghua University Beijing China Department of Electrical and Computer Engineering University of Alberta EdmontonAB Canada Department of Chemical and Materials Engineering University of Alberta EdmontonAB Canada

In large-scale industrial processes and other complex systems, elements are not independent. To describe the relationship between process variables, different concepts, such as connectivity and causality, are often used. The background and motivation of investigatingconnectivity and causality in complex systems are discussed;these two concepts are clarified with examples. Causality describes the cause-effect relationship between changes of process variables;while connectivity is generally concerned with physical and information paths in a process. The causality relationships can be described by process topology. A brief chapter preview is then included to give a big picture of this brief, and to provide guidance for interested readers to different topics covered in the brief. © 2014, The Author(s).

关键词： Causality Complex processes Connectivity Correlation Directionality Predictability Process topology Process variables Reachability

来源：评论

学校读者我要写书评

暂无评论

Experimental Verification of a Multi-robot Distributed Control Algorithm with Containment and Group Dispersion Behaviors: the Case of Dynamic Leaders

引用

IEEE/CAA Journal of Automatica Sinica 2014年第1期1卷 54-60页

作者： Hejin Zhang Zhiyun Zhao Ziyang Meng Zongli Lin Department of Automation and Key Laboratory for System Control and Information Processing of Ministry of Education Shanghai Jiao Tong University the Access Linnaeus Centre School of Electrical Engineering Royal Institute of Technology Charles L. Brown Department of Electrical and Computer Engineering University of Virginia

This paper studies the containment and group dispersion control for a multi-robot system in the presence of dynamic leaders. Each robot is represented by a doubleintegrator dynamic model and a distributed control algorithm is developed to drive the multi-robot system to follow a group of dynamic leaders with containment and group dispersion behaviors. The effectiveness of the algorithm is then verified on a multi-robot control platform.

关键词： Heuristic algorithms Mobile robots Robot kinematics Trajectory Dispersion Decentralized control

来源：评论

学校读者我要写书评

暂无评论

Consensus control and feedback graph co-design for MIMO discrete-time multi-agent systems

引用

Journal of Control and Decision 2014年第1期1卷 18-33页

作者： Guoxiang Gu Fei Liu Xiang Chen Department of Electrical and Computer Engineering Louisiana State UniversityBaton RougeLAUSA Key Laboratory of Advanced Process Control for Light Industry(Ministry of Education)China Institute of AutomationJiangnan UnniversityWuxiP.R.China Department of Electrical and Computer Engineering University of WindsorWindsorCanada

This paper studies consensus control for multi-input/multi-output(MIMO)discrete-time multi-agent systems(MASs).It makes use of the novel idea of resource allocation in designing both the communication graph and feedback *** weakest consensusability condition is obtained for MASs over both directed and undirected graphs,which extends the existing results to MIMO discrete-time *** synthesis procedures are also *** work demonstrates the importance of the graph and controller co-design based on resource allocation for MIMO discrete-time MASs.

关键词： consensus control gain margin multi-agent systems

来源：评论

学校读者我要写书评

暂无评论

Sketching the distribution of transcriptomic features on RNA transcripts with Travis coordinates

Sketching the distribution of transcriptomic features on RNA...

引用

IEEE International Conference on Bioinformatics and Biomedicine

作者： Xiaodong Cui Zhen Wei Lin Zhang Hui Liu Lei Sun Shao-Wu Zhang Yufei Huang Jia Meng Department of Electrical and Computer Engineering University of Texas at San Department of Biological Sciences XJTLU-Huai'an Research Institute of New-type Urbanization Xi'an Jiaotong-Liverpool University School of Information and Electrical Engineering China University of Mining and Technology School of Information Engineering Yangzhou University Key Laboratory of Information Fusion Technology of Ministry of Education School of Automation Northwestern Polytechnical University

ISBN: (纸本)9781467368001

Biological features, such as, genes, transcription factor binding sites, SNPs, etc., are usually denoted with genome-based coordinates as the genomic features. While genome-based representation is usually very effective, it can be tedious to examine the distribution of RNA-related genomic features on RNA transcripts with existing tools due to the conversion and comparison between genome-based coordinates to RNA-based coordinates. We developed here an open source R package Travis for sketching the transcriptomic view of genomic features so as to facilitate the analysis of RNA-related but genome-based coordinates. Internally, Travis package extracts the coordinates relative to the landmarks of transcripts, with which the distribution of RNA-related genomic features can then be conveniently analyzed. We demonstrated the usage of Travis package in analyzing post-transcriptional RNA modifications (5-MethylCytosine and N6-MethylAdenosine) derived from high-throughput sequencing approaches (MeRIP-Seq and RNA BS-Seq). The Travis R package is now publicly available from GitHub: .

关键词： Visualization RNA N6-MethylAdenosine (m~6A) 5-MethylCytosine (m~5C) BS-Seq MeRIP-Seq R package Genomic Features

来源：评论

学校读者我要写书评

暂无评论

Dynamics of insect-inspired flapping-wing MAVs: Multibody modeling and flight control simulations

Dynamics of insect-inspired flapping-wing MAVs: Multibody mo...

引用

2014 American Control Conference, ACC 2014

作者： Mahjoubi, Hosein Byl, Katie Robotics Laboratory Department of Electrical and Computer Engineering University of California at Santa Barbara Santa Barbara CA 93106 United States

ISBN: (纸本)9781479932726

Research on bio-inspired flapping-wing micro-aerial vehicles (MAVs) has experienced a steady growth over the past two decades. In particular, experiments on insect flight dynamics may provide new solutions for various challenges ranging from morphological design to force control mechanisms. A significant amount of research in this area is focused on modeling and simulation of such dynamics;however, mass of the wings and corresponding inertia effects are often ignored for simplification purposes. In this paper, the MAV is considered to be a structure with three rigid bodies, i.e., a main body and two wings. Wing strokes are limited within the body's transverse plane, though each wing can also passively pitch around its lateral axis. Using the Lagrangian, a dynamic multibody model of this system is developed to «1» analyze the significance of wing mass in flight dynamics and «2» simulate flight control experiments. The employed control approach is based on investigated relationships between mechanical impedance properties of the wing pitch joints and average values of aerodynamic forces. The results suggest that the wings' mass and mechanical impedance properties of the joints can be optimized together to enhance lift/thrust production. In addition, simulations of various flight maneuvers with the optimized model and proposed control approach always demonstrate an agile and stable behavior. © 2014 American Automatic Control Council.

关键词： Maneuverability

来源：评论

学校读者我要写书评

暂无评论

Infeasibility-free inverse kinematics method

Infeasibility-free inverse kinematics method

引用

IEEE/SICE International Symposium on System Integration

作者： Wael Suleiman Fumio Kanehiro Eiichi Yoshida Electrical and Computer Engineering Department Université de Sherbrooke Sherbrooke Quebec Canada Intelligent Systems Research Institute National Institute of Advanced Industrial Science and Technology (AIST) Tsukuba Ibaraki Japan CNRS-AIST JRL (Joint Robotics Laboratory) Tsukuba Ibaraki Japan

ISBN: (纸本)9781467372435

The problem of inverse kinematics is revisited in the present paper. The paper is focusing on the problem of solving the inverse kinematics problem while respecting velocity limits on both the robot's joints and the end-effector. Even-though the conventional inverse kinematics algorithms have been proven to be efficient in many applications, defining an admissible trajectory for the end-effector is still a burdensome task for the user, and the problem can easily become unsolvable. The main idea behind the proposed algorithms is to consider the sampling time as a free variable, hence adding more flexibility to the optimization problem associated with the inverse kinematics. We prove that the reformulated problem has always a solution if the end-effector path is in the reachable space of the robot, thus solving the problem of infeasibility of conventional inverse kinematics methods. To validate the proposed approach, we have conducted three simulations scenarios. The simulation results point that while the conventional inverse kinematics methods fail to track precisely a desired end-effector trajectory, the proposed algorithms always succeed.

关键词： Kinematics Optimization Robots Trajectory Algorithm design and analysis Jacobian matrices Angular velocity

来源：评论

学校读者我要写书评

暂无评论

Shape driven kernel adaptation in Convolutional Neural Network for robust facial trait recognition

Shape driven kernel adaptation in Convolutional Neural Netwo...

引用

Conference on computer Vision and Pattern Recognition (CVPR)

作者： Shaoxin Li Junliang Xing Zhiheng Niu Shiguang Shan Shuicheng Yan Department of Electrical and Computer Engineering National University of Singapore Singapore Key Lab of Intelligent Information Processing of Chinese Academy of Sciences (CAS) Institute of Computing Technology CAS Beijing China National Laboratory of Pattern Recognition Institute of Automation CAS Beijing China

ISBN: (纸本)9781467369657

One key challenge of facial trait recognition is the large non-rigid appearance variations due to some irrelevant real world factors, such as viewpoint and expression changes. In this paper, we explore how the shape information, i.e. facial landmark positions, can be explicitly deployed into the popular Convolutional Neural Network (CNN) architecture to disentangle such irrelevant non-rigid appearance variations. First, instead of using fixed kernels, we propose a kernel adaptation method to dynamically determine the convolutional kernels according to the spatial distribution of facial landmarks, which helps learning more robust features. Second, motivated by the intuition that different local facial regions may demand different adaptation functions, we further propose a tree-structured convolutional architecture to hierarchically fuse multiple local adaptive CNN subnetworks. Comprehensive experiments on WebFace, Morph II and MultiPIE databases well validate the effectiveness of the proposed kernel adaptation method and tree-structured convolutional architecture for facial trait recognition tasks, including identity, age and gender recognition. For all the tasks, the proposed architecture consistently achieves the state-of-the-art performances.

关键词： Kernel Shape Face Face recognition Robustness Neural networks computer architecture

来源：评论

学校读者我要写书评

暂无评论

RTC: Link schedule based MAC design in multi-hop wireless network

RTC: Link schedule based MAC design in multi-hop wireless ne...

引用

International Conference on Quality of Service in Heterogeneous Wired/Wireless Networks (QSHINE)

作者： Xuan Dong Yinjia Huo Chunsheng Zhu Shaohe Lv Wenxiang Li Xiaodong Wang Department of Electrical and Computer Engineering The University of British Columbia Vancouver BC Canada National Laboratory of Parallel and Distributed Processing National University of Defense Technology Changsha China Engineering Research Center for Metallurgical Automation and Detecting Technology of Ministry of Education Wuhan University of Science and Technology Wuhan China

ISBN: (纸本)9781479982172

The performance of an ad-hoc network is greatly limited by collisions due to hidden terminals. In this paper, we propose a receiver tracking contention (RTC) scheme, which achieves high throughput by allowing the receivers to assist for channel contention. In RTC, link is the basic unit for channel access contention. Specifically, transmitter is used to contend for the channel and receiver is used to announce the potential collision. Based on INT message coding scheme, transmitter and its corresponding receiver can be well coordinated. In such mechanism, hidden terminals are avoided and exposed terminals are encouraged to transmit simultaneously. Based on OFDM modulation, RTC packets several subcarriers as subcontention unit and operates channel contention over multiple subcontention units. Furthermore, each subcontention unit maintains a transmission set, where collision-free links are allowed to merged into the transmission set In this case, the transmission set of subcontention unit can be aggregated after each contention period. When the subcontention unit i is the smallest index of non-empty subcontention unit, the transmission set of unit i will win the channel contention and transmitters of unit i will start to transmit in the following data transmission period. Analysis and simulation results show that RTC achieves a notable throughput gain over Back2f as high as 190% through simulation.

关键词： Receivers OFDM Transmitters Electronics packaging

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：