检索结果-内蒙古大学图书馆

International Conference on Intelligent Systems Applications to Power Systems (ISAP)

作者： Richard Goncalves Carolina Almeida Josiel Kuk Myriam Delgado Graduate School on Electrical Engineering and Applied Computer Science Federal University of Parana (UFPR) Curitiba Parana Brazil

This paper presents intelligent systems based on natural computing for solving economic load dispatch problems. The proposed methods use three different natural computing techniques: Cultural algorithms, artificial immune systems and fuzzy inference systems. The base for the methods is a real coded immune system centred on the clonal selection principle. Two cultural variations are presented, where the operators of the immune system are guided by knowledge accumulated through the evolutionary process. One of the cultural variations uses a fuzzy inference system to decide the knowledge to be applied. Three test problems are used to validate the proposed methods which are compared with state-of-the-art algorithms.

关键词： Intelligent systems Competitive intelligence Cultural differences Power generation economics Inference algorithms Artificial immune systems Fuzzy systems Cost function Fuel economy Power generation

来源：评论

学校读者我要写书评

暂无评论

Tree paths: A new model for steering behaviors

Tree paths: A new model for steering behaviors

引用

9th International Conference on Intelligent Virtual Agents, IVA 2009

作者： Rodrigues, Rafael Araújo De Lima Bicho, Alessandro Paravisi, Marcelo Jung, Cláudio Rosito Magalhães, Léo Pini Musse, Soraia Raupp Graduate Programme in Computer Science PUCRS Building 32 Av. Ipiranga 6681 Porto Alegre RS Brazil Graduate Programme in Applied Computing UNISINOS Av. Unisinos 950 São Leopoldo RS Brazil School of Electrical and Computer Engineering UNICAMP Av. Albert Einstein 400 Campinas SP Brazil

ISBN: (纸本)3642043798

This paper describes a model for generating steering behaviors of groups of characters based on the biologically-motivated space colonization algorithm. This algorithm has been used in the past for generating leaf venation patterns and tree structures, simulating the competition for space between growing veins or branches. Adapted to character animation, this model is responsible for the motion control of characters providing robust and realistic group behaviors by adjusting just a few parameters. The main contributions are related with the robustness, flexibility and simplicity to control groups of characters. © 2009 Springer Berlin Heidelberg.

关键词： Animation

来源：评论

学校读者我要写书评

暂无评论

Testing a new proposed IPv6 QoS management model in inter and intra domains

Testing a new proposed IPv6 QoS management model in inter an...

引用

International Conference on Advances in Computational Tools for engineering Applications, ACTEA

作者： El-Bahlul Fgee William J. Phillips A. Elhounie School of Applied Science and Engineering Department of Electrical and Computer Engineering Academy of Graduate Studies Tripoli Libya Department of Engineering Mathematics and Internetworking Dalhousie University Canada

Network multimedia applications constitute a large part of Internet traffic and present a big challenge because of their sensitivity to delay, packet loss and higher bandwidth requirement. The need for guaranteed delivery and lower delay is caused by propagation of more the one domain. The domains used in this paper are co-operating and communicating with each other and all of them support IPv6 QoS. Therefore, there is a need for IP QoS management model that handles and manages QoS requests and cooperate with other QoS schemes. In this paper, the IPv6 QoS manager is tested when the QoS of traffic flows propagate two and three domains. The IPv6 QoS manager handles QoS requests by either processing them locally if the intended destination is located locally or forwarding them to the neighboring domains that are managed by IPv6 QoS managers. Two simulation scenarios are presented in this paper, intra domain, one domain, and inter domains, two and three domains. End-to-end delay results for the different scenarios have approved that this QoS model can work either in intra or inter domains. In addition to the delay, packets are policed and degraded to lower priority if they exceed their initial traffic rates. This proves that the IPv6 QoS model is flexible and not restricted to one domain. Also, end-to-end QoS has been achieved with one admission and management unit instead of individual and independent management and admission units as in the case of IntServ.

关键词： Testing Quality of service Traffic control Telecommunication traffic Bandwidth Communication system traffic control IP networks Diffserv networks Internet Protocols

来源：评论

学校读者我要写书评

暂无评论

Fatigue and Non-Fatigue Mathematical Muscle Models During Functional electrical Stimulation of Paralyzed Muscle

引用

IFAC Proceedings Volumes 2009年第12期42卷 365-370页

作者： Zhijun Cai Er-Wei Bai Richard K. Shield Electrical and Computer Engineering The University of Iowa Iowa City IA 52242USA Graduate Program in Physical Therapy and Rehabilitation Science The University of Iowa Iowa City IA 52242 USA

electrical muscle stimulation demonstrates potential for restoring functional movement and for preventing muscle atrophy after spinal cord injury (SCI). To optimize delivery of electrical stimulation protocols, an accurate and easy-to-implement mathematical skeletal muscle model is essential. The existing models are either accurate but complex, making them hard to implement, such as the Hill-Huxley-type model, or simple but inaccurate, such as second order model. In this paper, we propose a Wiener-Hammerstein system to model the paralyzed skeletal muscle dynamics under electrical stimulus conditions. The proposed model has substantial advantages in identification algorithm analysis and implementation including computational complexity and convergence. Experimental data sets were collected on soleus muscles under 15 Hz frequency stimulation for fourteen subjects with SCI. The simulation results show that the proposed model outperforms the Hill-Huxley-type model not only in peak force prediction, but also in fitting performance for force output of each individual stimulation train.

关键词： modeling identification muscle modeling fatigue modeling

来源：评论

学校读者我要写书评

暂无评论

Flux pinning characteristics of artificial pinning centers with different dimension

Flux pinning characteristics of artificial pinning centers w...

引用

作者： Matsumoto, Kaname Mele, Paolo Ichinose, Ataru Mukaida, Masashi Yoshida, Yutaka Horii, Shigeru Kita, Ryusuke Department of Materials Science and Engineering Kyushu Institute of Technology Kitakyushu 804-8550 Japan Electric Power Engineering Research Laboratory Central Research Institute of Electric Power Industry Yokosuka 240-0196 Japan Department of Materials Science and Engineering Kyushu University Fukuoka 812-8581 Japan Department of Electrical Engineering and Computer Science Nagoya University Nagoya 46408603 Japan Department of Applied Chemistry University of Tokyo Tokyo 113-8656 Japan Graduate School of Science and Technology Shizuoka University Hamamatsu 432-8651 Japan

The crystal defects of the nano-scale, which are called artificial pinning centers (APCs), were successfully introduced into high-temperature superconductors (HTS) by nanotechnology, in order to strongly pin the quantized vortices. Critical current densities Jc of the HTS films were dramatically improved by APCs whose dimensions were controlled. By this method, the in-field Jc (77 K) of the high-quality, epitaxial films was improved by one order of magnitude or more compared with the values of the past. A current outline of the research is described in this paper. © 2009 IEEE.

关键词： Superconducting films

来源：评论

学校读者我要写书评

暂无评论

Breast tomosynthesis reconstruction with a multi-beam x-ray source

Breast tomosynthesis reconstruction with a multi-beam x-ray ...

引用

Medical Imaging 2009: Physics of Medical Imaging

作者： Chen, Ying Zhou, Weihua Yang, Guang Qian, Xin Lu, Jianping Zhou, Otto Dept. of Electrical and Computer Engineering Southern Illinois University Carbondale IL 62901 United States Biomedical Engineering Graduate Program Southern Illinois University Carbondale IL 62901 United States Dept. of Physics and Astronomy and Curriculum in Applied Sciences and Engineering University of North Carolina Chapel Hill NC 27599 United States Lineberger Comprehensive Cancer Center University of North Carolina Chapel Hill NC 27599 United States

ISBN: (纸本)9780819475091

As a new three-dimensional breast imaging technique, breast tomosynthesis allows the reconstruction of an arbitrary set of planes in the breast from a limited-angle series of x-ray projection images. The breast tomosynthesis technique has been demonstrated as promising to improve early breast cancer detection. This paper represents a preliminary phantom study and computer simulation results of different breast tomosynthesis reconstruction algorithms with a novel carbon nanotube based multi-beam x-ray source. Five representative tomosynthesis reconstruction algorithms, including back projection (BP), filtered back projection (FBP), matrix inversion tomosynthesis (MITS), maximum likelihood expectation maximization (MLEM), and simultaneous algebraic reconstruction technique (SART) were investigated. Tomosynthesis projection images of a phantom were acquired with the stationary multi-beam x-ray tomosynthesis system. Reconstruction results from different algorithms were studied. A computer simulation study was further done to investigate the sharpness of reconstructed in-plane structures and to see how effective each algorithm is at removing outof- plane blur with parallel-imaging geometries. Datasets with 9 and 25 projection images of a defined 3D spherical object were simulated with a total view angle of 50 degrees. Results showed that the multi-beam x-ray system is capable to generate 3D tomosynthesis images with faster speed compared with current commercial prototype systems. With simulated parallel-imaging geometry, MITS and FBP showed edge enhancement in-plane performance. BP, FBP and MLEM performed better at out-of-plane structure removal with larger number of projection images. © 2009 SPIE.

关键词： Carbon nanotubes

来源：评论

学校读者我要写书评

暂无评论

electrical properties of single and multiple poly(3,4-ethylenedioxythiophene) nanowires for sensing nitric oxide gas

引用

Analytica Chimica Acta 2009年第1-2期640卷 68-74页

作者： Lu, Hui-Hsin Lin, Chia-Yu Hsiao, Tzu-Chien Fang, Yueh-Yuan Ho, Kuo-Chuan Yang, Dongfang Lee, Chih-Kung Hsu, Su-Ming Lin, Chii-Wann Department of Electrical Engineering National Taiwan University Taipei 10617 Taiwan Department of Chemical Engineering National Taiwan University Taipei 10617 Taiwan Department of Computer Science National Chiao Tung University Hsinchu 30010 Taiwan Institute of Biomedical and Engineering National Chiao Tung University Hsinchu 30010 Taiwan Institute of Biomedical Engineering National Taiwan University Taipei 10617 Taiwan Institute of Polymer Science and Engineering National Taiwan University Taipei 10617 Taiwan Integrated Manufacturing Technologies Institute National Research Council London N6G 4X8 Canada Institute of Applied Mechanics National Taiwan University Taipei 10617 Taiwan Graduate Institute of Immunology National Taiwan University Taipei 10051 Taiwan

The electrical properties of conducting polymer, poly(3,4-ethylenedioxythiophene) (PEDOT), nanowires were studied to develop nitric oxide (NO) gas sensors with low working temperatures. A nanowire with a diameter of 300 nm was fabricated using dip-pen nanolithography (DPN) across a 55 μm gap between a pair of electrodes. The electrical properties of single or multiple PEDOT nanowires were examined by plotting the current-voltage (I-V) curves in the range -3 V to +3 V at temperatures between 298 K and 393 K. The conductance of parallel wires was normalized with respect to the dimensions of the fabricated nanowires. The single nanowire exhibited nonlinear conductance associated with hysteresis but multiple wires did not. The currents increased with the temperature and the I-V characteristics were consistent with the power law G(T)αTα with α∼ 5.14 and 5.43. The responses to NO were highly linear and reproducible, indicating that sensing using PEDOT nanowires was reliable with a minimal concentration of NO of 10 ppm. © 2009 Elsevier B.V. All rights reserved.

关键词： Nanowires

来源：评论

学校读者我要写书评

暂无评论

Probabilistic structure from sound

引用

Advanced Robotics 2009年第12-13期23卷 1687-1702页

作者： Wang, Chieh-Chih Lin, Chi-Hao Hu, Jwu-Sheng Department of Computer Science and Information Engineering Graduate Institute of Networking and Multimedia National Taiwan University Taipei 10617 Taiwan Intelligent Robotics Program of Industrial Technology Research Institute Department of Electrical and Control Engineering National Chiao Tung University HsinChu 310 Taiwan

Auditory perception is one of the most important functions for robotics applications. Microphone arrays are widely used for auditory perception in which the spatial structure of microphones is usually known. In practice, microphone array calibration can be tedious and other devices or means are required. The structure from sound (SFS) approach addresses the problem of simultaneously localizing a set of microphones and a set of acoustic events that provides a great flexibility to calibrate different setups of microphone arrays. However, the existing method does not take measurement uncertainty into account and does not provide uncertainty estimates of the SFS results. In this paper, we propose a probabilistic structure from sound (PSFS) approach using the unscented transform in which the uncertainties of the PSFS results are also available. In addition, a probabilistic sound source localization approach using the PSFS results is provided to improve sound source localization accuracy. The ample results of simulation and experiments using low-cost, off-the-shelf microphones demonstrate the feasibility and performance of the proposed PSFS approach. © 2009 VSP.

关键词： Microphone array

来源：评论

学校读者我要写书评

暂无评论

Time Series Mining Approach for Noninvasive Intracranial Pressure Assessment: An Investigation of Different Regularization Techniques

Time Series Mining Approach for Noninvasive Intracranial Pre...

引用

computer science and Information engineering, CSIE, WRI World Congress on FLAGGED

作者： Shaozhi Wu Peng Xu Shadnaz Asgari Marvin Bergsneider Xiao Hu Biomedical Engineering Graduate Program Henry Samueli School of Engineering and Applied Science University of California Los Angeles USA Neural Systems and Dynamics Laboratory Department of Neurosurgery the David Geffen School of Medicine University of California Los Angeles USA School of Computer Science and Engineering University of Electronic Science and Technology Chengdu China

A data mining framework has been proposed to estimate intracranial pressure (ICP) non-invasively in our previous work. In the corresponding approach, the feature vector extracted from arterial blood pressure (ABP) and flow velocity (FV) is translated to the estimated errors by the mapping function for each entry in the database. In this paper, three different mapping function solutions, linear least squares (LLS), truncated singular value decomposition (TSVD) and standard Tikhonov regularization (STR) are systemically tested to compare the possible effects of different solutions on the non-invasive ICP estimation. The conducted comparison demonstrated that the selection of mapping function solution actually influences the estimation. Among the tested three solutions for mapping function, TSVD and STR show better ICP estimation performance with smaller ICP errors than LLS.

关键词： Cranial pressure Data mining Biomedical engineering Data engineering Spatial databases computer science Feature extraction Arterial blood pressure Biomedical measurements Laboratories

来源：评论

学校读者我要写书评

暂无评论

AAAI 2008 workshop reports

AAAI 2008 workshop reports

引用

作者： Anand, Sarabjot Singh Bunescu, Razvan Carvcdho, Vitor Chomicki, Jan Conitzer, Vincent Cox, Michael T. Dignum, Virginia Dodds, Zachary Dredze, Mark Furcy, David Gabrilovich, Evgeniy Göker, Mehmet H. Guesgen, Hans Hirsh, Haym Jannach, Dietmar Junker, Ulrich Ketter, Wolfgang Kobsa, Alfred Koenig, Sven Lau, Tessa Lewis, Lundy Matson, Eric Metzler, Ted Mihalcea, Rada Mobasher, Bamshad Pineau, Joelle Poupart, Pascal Raja, Anita Ruml, Wheeler Sadeh, Norman Shani, Guy Shapiro, Daniel Smith, Trey Taylor, Matthew E. Wagstaff, Kiri Walsh, William Zhou, Rong Department of Computer Science University of Warwick United Kingdom School of Electrical Engineering and Computer Science Ohio University United States Microsoft Live Labs United States computer science and engineering University at Buffalo United States Computer science and economics Duke University United States Intelligent Computing group of BBN Technologies Utrecht University Netherlands Department of Computer science Harvey Mudd College United States University of Pennsylvania United States University of Wisconsin United States Yahoo Research PricewaterhouseCoopers Center for Advanced Research United States Department of Computer science School of Engineering and Advanced Technology Massey University New Zealand Departent of Computer science Rutgers University United States Department of Computer Science Dortmund University of Technology. Germany ILOG Rotterdam School of Management Erasmus University Netherlands Donald Bren School of Information and Computer Sciences University of California Irvine United States Depatrment of Computer science University of Southern California United States IBM Almaden Research Center United States Department of Computer Information Technology Southern New Hampshire University United States Computer and Information Technology Program College of Technology Purdue University United States Hughes Program for Religion and Science Dialogue Oklahoma City University United States Department of Computer Science and Engineering University of North Texas United States School of Computing DePaul University United States Department of Computer Science McGill University Canada School of Computer Science University of Waterloo Canada Department of Software and Information Systems University of North Carolina Charlotte United States University of New Hampshire United States Microsoft Research Institute for the Study of Learning and Expertise Applied Reactivity Inc. United States NASA Ames Research Center Carnegie Mellon University West

AAAI was pleased to present the AAAI-08 Workshop program, held Sunday and Monday, July 13-14, in Chicago, Illinois, USA. The program included the following 15 workshops: Advancements in POMDP Solvers;AI Education Workshop Colloquium;Coordination, Organizations, Institutions, and Norms in Agent Systems, Enhanced Messaging;Human Implications of Human-Robot Interaction;Intelligent Techniques for Web Personalization and Recommender Systems;Metareasoning: Thinking about Thinking;Multidisciplinary Workshop on Advances in Preference Handling;Search in Artificial Intelligence and Robotics;Spatial and Temporal Reasoning;Trading Agent Design and Analysis;Transfer Learning for Complex Tasks;What Went Wrong and Why: Lessons from AI Research and Applications;and Wikipedia and Artificial Intelligence: An Evolving Synergy. Copyright © 2009, Association for the Advancement of Artificial Intelligence. All rights reserved.

关键词： Human robot interaction

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：