检索结果-内蒙古大学图书馆

International Conference on Biomedical engineering and Biotechnology (iCBEB)

作者： Wenya Nan Joao Pedro Rodrigues Feng Wan Peng Un Mak Pui In Mak Mang I. Vai Agostinho Rosa Department of Electrical and Computer Engineering Faculty of Science and Technology University of Macau Macao China LaSEEB-System and Robotics Institute Instituto Superior Tecnico Technical University of Lisbon Portugal

Our previous study successfully improved short term memory by individual alpha neurofeedback training. However, short term memory and its improvement in different languages are still not clear. Therefore, the purpose of this paper was to evaluate the memory performance in alphabetic and ideographic language groups. Besides, the relationship between initial memory and its improvement was investigated. The results indicated short term memory in ideographic language was higher than those in alphabetic language and forward digit span improvement was positive related to its initial performance.

关键词： Noise measurement Training Neurofeedback Electroencephalography Correlation Educational institutions Electrodes

来源：评论

学校读者我要写书评

暂无评论

Optical Coherence Tomography Scanning with a Handheld Vitreoretinal Micromanipulator

Optical Coherence Tomography Scanning with a Handheld Vitreo...

引用

Annual International Conference of the IEEE engineering in Medicine and Biology Society

作者： Sungwook Yang Marcin Balicki Robert A. MacLachlan Xuan Liu Jin U. Kang Russell H. Taylor Cameron N. Riviere Robotics Institute Carnegie Mellon University Pittsburgh PA 15213 USA Department of Computer Science Johns Hopkins University Baltimore MD 21218 USA. Department of Electrical and Computer Engineering Johns Hopkins University Baltimore MD 21218 USA Department of Computer Science Johns Hopkins University Baltimore MD 21218 USA

ISBN: (纸本)9781424441198

An active handheld micromanipulator has been developed that is capable of automated intraocular acquisition of B-mode and C-mode optical coherence tomography scans that are up to 4 mm wide. The manipulator is a handheld Gough-Stewart platform actuated by ultrasonic linear motors. The manipulator has been equipped with a Fourier-domain common-path intraocular OCT probe that fits within a 25- gauge needle. The paper describes the systems and techniques involved, and presents preliminary results of B-mode and Cmode scans.

关键词： paper manipulator automated

来源：评论

学校读者我要写书评

暂无评论

Development of Prosthesis Grasp Control Systems on a Robotic Testbed

Development of Prosthesis Grasp Control Systems on a Robotic...

引用

IEEE RAS & EMBS International Conference on Biomedical robotics and Biomechatronics

作者： Bart Peerdeman Ugo Fabrizi Gianluca Palli Claudio Melchiorri Stefano Stramigioli Sarthak Misra MIRA - Institute for Biomedical Technology and Technical Medicine (Control Engineering Group) University of Twente LAR DEIS - Laboratory of Automation and Robotics Department of Electronics Computer Science and Systems University of Bologna

ISBN: (纸本)9781457711992

Modern myoelectric hand prostheses continue to increase in functionality, while their control is constrained by the limits of myoelectric input. This paper covers the development and testing of grasp control systems for multifunctional myoelectric prosthetic hands. The functionality of modern hand prostheses is often focused on the task of grasping, which can be divided into high-level grasp planning and low-level finger control. Initially, models can used to test these control systems, but for proper evaluation actual implementation on a physical system is required. The University of Bologna (UB) Hand IV prototype is an anthropomorphic, tendon-driven robotic hand, which makes it well-suited to represent the structure of modern prostheses. One of the main control systems tested in this paper is based on the intrinsically passive controller (IPC), the structure of which offers guaranteed passivity and stability. After several grasping tests, the systems are evaluated on compliant behavior, grasping ability, and dynamic appearance. IPC proves to be a powerful approach to interaction control, without the associated sensor requirements which could be difficult to meet in modern hand prostheses.

关键词： Grasp control systems Prosthetic hand Prosthesis robotic hand

来源：评论

学校读者我要写书评

暂无评论

A novel swarm intelligence algorithm and its application in solving wireless sensor networks coverage problems

引用

Journal of Networks 2012年第12期7卷 2037-2043页

作者： Mo, Yuanbin Liu, Jizhong Wang, Baolei Jonathan Wu, Q.M. College of Mathematics and Computer Science Guangxi University for Nationalities Nanning 530006 China School of Mechanical and Electrical Engineering Institute of Robotics of Nanchang University Nanchang University Nanchang 330031 China Department of Electrical and Computer Engineering Computer Vision and Sensing Systems Laboratory University of Windsor Windsor N9B3P4 Canada

Wireless sensor networks (WSNs) have attracted a great deal of research due to their wide-range of potential applications. Sensor deployment and coverage problems are their important issues. This article briefly introduces the principle of swarm intelligence (SI). A novel SI algorithm based on information sharing of Particle Swarm Optimization (PSO) and diversity maintenance mechanism of Artificial Immune System (AIS) is designed and the model of coverage problems is given. Its applications in solving different deterministic and random coverage problems are given. The algorithm used in obtaining maximum coverage probability with given number of sensor nodes and minimum number of sensor nodes with required coverage probability of WSNs deterministic coverage, and determining the selected sensor nodes with coverage probability and connectivity requirement of WSNs random coverage, are analyzed in detail. The simulation results show the algorithm is practical. The applications of SI on K- coverage and connectivity problems in the future are also projected in the article. © 2012 ACADEMY PUBLISHER.

关键词： Swarm intelligence

来源：评论

学校读者我要写书评

暂无评论

A tuning parameter selector method for the gsvm-scad in determining significant genes and biological pathway

引用

ICIC Express Letters 2012年第4期6卷 851-856页

作者： Misman, Muhammad Faiz Mohamad, Mohd Saberi Deris, Safaai Hashim, Siti Zaiton Mohd Leham, Nurdyana Ibrahim, Zuwairie Artificial Intelligence and Bioinformatics Research Group Faculty of Computer Science and Information Systems 81310 UTM Skudai Johor Darul Takzim Malaysia Department of Mechatronics and Robotics Center for Artificial Intelligence and Robotics Faculty of Electrical Engineering Universiti Teknologi Malaysia 81310 UTM Skudai Johor Darul Takzim Malaysia

A hybrid of support vector machines and a smoothly clipped absolute deviation with group-specific penalty terms (gSVM-SCAD) is a penalized classifier that has been used to identify and select significant pathways in pathway-based microarray analysis. Despite its advantages in identifying significant pathways, the gSVM-SCAD has some limitations, as it depends on the proper choice of tuning parameter. If the tuning parameter is too small, it can bring little sparsity and overfit to the classifier model, while if it is too large, it can make much sparsity to the classifier model and produce poor discriminating power. Therefore, it is important to choose an appropriate tuning parameter selector method for the gSVM-SCAD. The generalized cross validation (GACV) has been widely used as a tuning parameter selector method. Unfortunately, GACV has some limitations where it poorly performs when dealing with the low number of variables (in this paper referred as genes) and large sample sizes. This is because some pathways contain not more than 100 genes and even some pathways contain less than 10 genes. This scenario can lead to the poor performance of SCAD in selecting the informative genes and simultaneously identifying significant ones. In order to surmount the limitations of the gSVM-SCAD, we proposed to use the B-type generalized approximate cross validation (BGACV) as a tuning parameter selector method for gSVM-SCAD. ICIC International © 2012.

关键词： Genes

来源：评论

学校读者我要写书评

暂无评论

Modeling and identification of serial two-link manipulator considering joint nonlinearities for industrial robots control

Modeling and identification of serial two-link manipulator c...

引用

25th IEEE/RSJ International Conference on robotics and Intelligent Systems, IROS 2012

作者： Kim, Eui-Jin Seki, Kenta Iwasaki, Makoto Lee, Sang-Hun Department of Computer Science and Engineering Nagoya Institute of Technology Gokiso Showa Nagoya Japan Robotics Research Department Engine and Machinery Research Institute Hyundai Heavy Industries Co. Ltd. 102-18. Mabuk-dong Giheung-gu Yongin-si. Gyeonggi-do Korea Republic of Medical System Research Department Corporate Technology Institute Hyundai Heavy Industries Co. Ltd. Korea Republic of

ISBN: (纸本)9781467317375

This paper presents modeling and identification of a serial two-link manipulator considering joint nonlinearities for industrial robot control. In order to achieve the desired performance using model-based control approaches, it is important to obtain relevant models of both kinematics and dynamics including the nonlinear effects. The main nonlinear components which result in trajectory tracking errors of typical multi-axis industrial robot, are joint nonlinearities in each axis and dynamic coupling effects between different axes. A parametric modeling approach is presented to reproduce behaviors of a serial two-link manipulator with joint nonlinearities. Nonlinear stiffness, angular transmission errors, and friction in these two links are directly identified as joint nonlinearities. As a case study, this approach is applied for the serial two-link arm of a typical multi-axis industrial robot, which has low frequency vibration modes and significantly affect to the trajectory performance. Effectiveness of the modeling is verified by comparative studies with numerical simulations and experiments. Finally, a simple 2-degrees-of-freedom controller on the basis of the identified dynamic model has been applied to improve the performance of trajectory tracking and residual vibration suppression. © 2012 IEEE.

关键词： Trajectories

来源：评论

学校读者我要写书评

暂无评论

A framework for cognitive robots to learn behaviors through imitation and interaction with humans

A framework for cognitive robots to learn behaviors through ...

引用

IEEE International Multi-Disciplinary Conference on Cognitive Methods in Situation Awareness and Decision Support (CogSIMA)

作者： Huan Tan Qian Du Na Wu Electrical Engineering and Computer Science Department Vanderbilt University Nashville TN USA Institute of Robotics Nankai University Tianjin China Graduate School of Decision and Technology Tokyo Institute of Technology Japan

This paper proposes a general learning framework for robots to learn behaviors through imitation and interaction. A modified codebook based method is used for robots to segment and recognize new objects in the environment. Task related semantic information is learned by robots through the speech communication with humans. Dynamic Movement Primitive method is used to generate similar behaviors to complete similar but slightly different tasks. Experimental results are given to verify the effectiveness of this framework.

关键词： Humans Semantics Learning systems USA Councils Cognitive robotics Humanoid robots

来源：评论

学校读者我要写书评

暂无评论

Decentralized discrete-event modeling and control of task execution for robotic networks

Decentralized discrete-event modeling and control of task ex...

引用

IEEE Conference on Decision and Control

作者： Donato Di Paola Andrea Gasparri David Naso Frank L. Lewis Faculty of Engineering Computer Science and Automation Department University Roma Tre Rome Italy Department of Electrical and Electronic Engineering (DEE) Polytechnic of Bari Bari Italy Automation and Robotics Research Institute University of Texas Arlington Fort Worth TX USA

ISBN: (纸本)9781467320658

This paper describes a decentralized approach to control the execution of a set of tasks for a network of heterogeneous robotic agents, i.e., agents with different sets of sensors and actuators. The proposed approach is based on a discrete-event modeling and control framework. The novelty is the full decoupling between the tasks modeling and their deployment. This implies an higher robustness to faults in the network of agents and a more systematic way for the task modeling regardless of the actual capability of the agents. A consensus-based mechanism is exploited in the control system to achieve coherence among the agents state and synchronize the agents action.

关键词： Vectors Control systems Robot kinematics Robot sensing systems Synchronization Indexes

来源：评论

学校读者我要写书评

暂无评论

Real-time footstep planning for humanoid robots among 3D obstacles using a hybrid bounding box

Real-time footstep planning for humanoid robots among 3D obs...

引用

IEEE International Conference on robotics and Automation (ICRA)

作者： Nicolas Perrin Olivier Stasse Florent Lamiraux Young J. Kim Dinesh Manocha Department of Advanced Robotics Istituto Italiano di Tecnologia Genoa Italy CNRS/LAAS INSA INP ISAE UPS Université de Toulouse Toulouse France Department of Computer Science and Engineering Ewha Womans University Seoul South Korea Department of Computer Science North Carolina State University Chapel Hill USA

In this paper we introduce a new bounding box method for footstep planning for humanoid robots. Similar to the classic bounding box method (which uses a single rectangular box to encompass the robot) it is computationally efficient, easy to implement and can be combined with any rigid body motion planning library. However, unlike the classic bounding box method, our method takes into account the stepping over capabilities of the robot, and generates precise leg trajectories to avoid obstacles on the ground. We demonstrate that this method is well suited for footstep planning in cluttered environments.

关键词： Planning Legged locomotion Trajectory Smoothing methods Foot Humanoid robots

来源：评论

学校读者我要写书评

暂无评论

A two-view based multilayer feature graph for robot navigation

A two-view based multilayer feature graph for robot navigati...

引用

IEEE International Conference on robotics and Automation (ICRA)

作者： Haifeng Li Dezhen Song Yan Lu Jingtai Liu Institute of Robotics and Automatic Information System Nankai University Tianjin P. R. China Department of Computer Science and Engineering Texas A&M University College Station TX United States

To facilitate scene understanding and robot navigation in a modern urban area, we design a multilayer feature graph (MFG) based on two views from an on-board camera. The nodes of an MFG are features such as scale invariant feature transformation (SIFT) feature points, line segments, lines, and planes while edges of the MFG represent different geometric relationships such as adjacency, parallelism, collinearity, and coplanarity. MFG also connects the features in two views and the corresponding 3D coordinate system. Building on SIFT feature points and line segments, MFG is constructed using feature fusion which incrementally, iteratively, and extensively verifies the aforementioned geometric relationships using random sample consensus (RANSAC) framework. Physical experiments show that MFG can be successfully constructed in urban area and the construction method is demonstrated to be very robust in identifying feature correspondence.

关键词： Cameras Sensors Robot kinematics Buildings Feature extraction Navigation

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：