检索结果-内蒙古大学图书馆

International Conference on Transparent Optical Networks

作者： Jan Vitasek Radek Martinek Ales Vanderka Lukas Hajek Jan Latal Zhenli Lu Bin Li Department of Telecommunications VSB-Technical University of Ostrava Ostrava Czech Republic Department of Cybernetics and Biomedical Engineering VSB-Technical University of Ostrava Ostrava Czech Republic Department of Telecommunications Faculty of Electrical Engineering and Computer Science VSB-Technical University of Ostrava 17. listopadu 15 708 33 Czech Republic State key Laboratoryof Robotics Chinese Academy of Sciences Shenyang China School of Electrical Engineering and Automation Changshu Instituteof Technology Changshu China

ISBN: (纸本)9781509014682

This article explores the influence of the concentrated carbon dioxide (CO 2 ) gas on the different Phase Shift Keying (PSK) modulations used for Optical Wireless Communication (OWC) links. In this work, the OWC consisted of a laser diode, a photodetector, and a transmission medium. The Universal Software Radio Peripheral (USRP) unit created and evaluated the PSK modulations. This unit modulated the laser diode on the transmitter side and demodulated the data which were received by the photodetector on the receiver side. The CO 2 gas was emitted as a consequence of sublimation of the solid carbon dioxide in hot water. The measurements were done in a closed box in laboratory. The CO 2 gas is a one element of smog which pollutes cities now and then. Our experimental results with CO 2 gas could help to choose a suitable modulation scheme for OWC which are installed in cities with smog-polluted atmospheric conditions.

关键词： Phase shift keying Carbon dioxide Optical receivers Diode lasers Integrated optics Optical transmitters

来源：评论

学校读者我要写书评

暂无评论

Towards Automated Provisioning and Emergency Handling in Renewable Energy Powered Datacenters

引用

Journal of computer science & technology 2014年第4期29卷 618-630页

作者：李超王锐胡杨周睿晋刘铭刘龙军袁景凌李涛钱德沛 ACM IEEE Department of Electrical and Computer Engineering University of Florida Gainesville FL 32611 U.S.A. CCF School of Computer Science and Engineering Beihang University Institute of Artificial Intelligence and Robotics Xi’an Jiaotong University School of Computer Science and Technology Wuhan University of Technology

Designing eco-friendly system has been at the forefront of computing research. Faced with a growing concern about the server energy expenditure and the climate change, both industry and academia start to show high interest in computing systems powered by renewable energy sources. Existing proposals on this issue mainly focus on optimizing resource utilization or workload performance. The key supporting hardware structures for cross-layer power management and emergency handling mechanisms are often left unexplored. This paper presents GreenPod, a research framework for exploring scalable and dependable renewable power management in datacenters. An important feature of GreenPod is that it enables joint management of server power supplies and virtualized server workloads. Its interactive communication portal between servers and power supplies allows dataeenter operators to perform real-time renewable energy driven load migration and power emergency handling. Based on our system prototype, we discuss an important topic： virtual machine （VM） workloads survival when facing extended utility outage and insufficient onsite renewable power budget. We show that whether a VM can survive depends on the operating frequencies and workload characteristics. The proposed framework can greatly encourage and facilitate innovative research in dependable green computing.

关键词： data center server system renewable energy green computing

来源：评论

学校读者我要写书评

暂无评论

25th Annual Computational Neuroscience Meeting CNS-2016, Seogwipo City, South Korea, July 2-7, 2016 Abstracts

引用

BMC NEUROscience 2016年第1期17卷 1-112页

作者： [Anonymous] Computational Neurobiology Laboratory The Salk Institute for Biological Studies San Diego USA UNIC CNRS Gif sur Yvette France The European Institute for Theoretical Neuroscience (EITN) Paris France ATR Computational Neuroscience Laboratories Kyoto Japan Krembil Research Institute University Health Network Toronto Canada Department of Physiology University of Toronto Toronto Canada Department of Medicine (Neurology) University of Toronto Toronto Canada Department of Physics University of New Hampshire Durham USA Department of Neurophysiology Nencki Institute of Experimental Biology Warsaw Poland Department of Theory Wigner Research Centre for Physics of the Hungarian Academy of Sciences Budapest Hungary Department of Mathematical Sciences KAIST Daejoen Republic of Korea Department of Mathematics University of Houston Houston USA Department of Biochemistry & Cell Biology and Institute of Biosciences and Bioengineering Rice University Houston USA Department of Biology and Biochemistry University of Houston Houston USA Grupo de Neurocomputación Biológica Dpto. de Ingeniería Informática Escuela Politécnica Superior Universidad Autónoma de Madrid Madrid Spain Department of Biological Sciences University of Southern California Los Angeles USA Center for Neuroscience Korea Institute of Science and Technology Seoul South Korea Department of Neurology Albert Einstein College of Medicine Bronx USA Center for Neuroscience KIST Seoul South Korea Department of Neuroscience University of Science and Technology Daejon South Korea Systems Neuroscience Group QIMR Berghofer Medical Research Institute Herston Australia Department of Psychology Yonsei University Seoul South Korea Department of Psychiatry Kyung Hee University Hospital at Gangdong Seoul South Korea Department of Psychiatry Veterans Administration Boston Healthcare System and Harvard Medical School Brockton USA Department of Electrical and Electronic Engineering The University of Melbourne Parkvil

A1 Functional advantages of cell-type heterogeneity in neural circuits Tatyana O. Sharpee A2 Mesoscopic modeling of propagating waves in visual cortex Alain Destexhe A3 Dynamics and biomarkers of mental disorders Mitsuo Kawato F1 Precise recruitment of spiking output at theta frequencies requires dendritic h-channels in multi-compartment models of oriens-lacunosum/moleculare hippocampal interneurons Vladislav Sekulić, Frances K. Skinner F2 Kernel methods in reconstruction of current sources from extracellular potentials for single cells and the whole brains Daniel K. Wójcik, Chaitanya Chintaluri, Dorottya Cserpán, Zoltán Somogyvári F3 The synchronized periods depend on intracellular transcriptional repression mechanisms in circadian clocks. Jae Kyoung Kim, Zachary P. Kilpatrick, Matthew R. Bennett, Kresimir Josić O1 Assessing irregularity and coordination of spiking-bursting rhythms in central pattern generators Irene Elices, David Arroyo, Rafael Levi, Francisco B. Rodriguez, Pablo Varona O2 Regulation of top-down processing by cortically-projecting parvalbumin positive neurons in basal forebrain Eunjin Hwang, Bowon Kim, Hio-Been Han, Tae Kim, James T. McKenna, Ritchie E. Brown, Robert W. McCarley, Jee Hyun Choi O3 Modeling auditory stream segregation, build-up and bistability James Rankin, Pamela Osborn Popp, John Rinzel O4 Strong competition between tonotopic neural ensembles explains pitch-related dynamics of auditory cortex evoked fields Alejandro Tabas, André Rupp, Emili Balaguer-Ballester O5 A simple model of retinal response to multi-electrode stimulation Matias I. Maturana, David B. Grayden, Shaun L. Cloherty, Tatiana Kameneva, Michael R. Ibbotson, Hamish Meffin O6 Noise correlations in V4 area correlate with behavioral performance in visual discrimination task Veronika Koren, Timm Lochmann, Valentin Dragoi, Klaus Obermayer O7 Input-location dependent gain modulation in cerebellar nucleus neurons Maria Psarrou, Maria Schilstra, Neil Davey, Benjamin Torben-Ni

关键词：

来源：评论

学校读者我要写书评

暂无评论

Control Schemes for Passive Teleoperation Systems over Wide Area Communication Networks with Time Varying Delay

引用

International Journal of Automation and computing 2014年第1期11卷 100-108页

作者： Shafiqul Islam Xiaoping P.Liu Abdulmotaleb El Saddik Lakmal Seneviratne Jorge Dias School of Information Technology and Engineering University of Ottawa School of Engineering and Applied Sciences Harvard University Robotics and Mechanical Engineering Khalifa University of Science & Technology Department of Systems and Computer Engineering Carleton University Electrical Engineering New York University Division of Engineering Kings College London Robotics and Electrical and Computer Engineering Khalifa University of Science & Technology Institute of Systems and Robotics University of Coimbra

In this paper,the problem of time varying telecommunication delays in passive teleoperation systems is *** design comprises delayed position,velocity and position-velocity signals with the local position and velocity signals of the master and slave *** adaptive control terms are employed locally to cope with uncertain parameters associated with the gravity loading vector of the master and slave ***-Krasovskii function is employed for three methods to establish asymptotic tracking property of the closed loop teleoperation *** stability analysis is derived for both symmetrical and unsymmetrical time varying delays in the forward and backward communication channel that connects the local and remote ***,evaluation results are presented to illustrate the efectiveness of the proposed design for real-time applications.

关键词： Teleoperation telerobotics Lyapunov-Krasovskii functional time varying delay passive systems

来源：评论

学校读者我要写书评

暂无评论

Adaptive NN Control for Uncertain Pure-Feedback Nonlinear Systems With State Constraints Subject to Unknown Disturbances

Adaptive NN Control for Uncertain Pure-Feedback Nonlinear Sy...

引用

IEEE Annual Conference on Decision and Control

作者： Zhong-Liang Tang Shuzhi Sam Ge Keng Peng Tee School of Computer Science and Engineering and Center for Robotics University of Electronic Science and Technology of China Chengdu 610054 China Department of Electrical and Computer Engineering National University of Singapore Singapore 117576 Institute for Infocomm Research A*STAR Singapore 138632 Singapore

ISBN: (纸本)9781479978878

This paper addresses the output tracking control for a class of non-affine nonlinear systems in pure-feedback form with unknown dynamics subject to full state constraints and unknown external time-varying bounded disturbances. This problem is challenging due to the non-affine structure coupling with the constraints on states and external disturbances. To overcome the problem, the mean value theorem is applied to deduce the variables with affine appearance in the system dynamics, and the integral Barrier Lyapunov Functionals (iBLFs) are utilized in the recursive backstepping design to handle the unknown deduced control gains and state constraints together, and adapting parameters are developed to estimate the unknown bounds on neural networks (NNs) reconstruction errors and external disturbances. Through Lyapunov synthesis, all signals in the closed-loop system are proved to be semiglobally uniformly ultimately bounded (SGUUB), and all state constraints are guaranteed provided that the states are initially in the constrained regions, and tracking errors are ensured to converge to an adjustable neighborhood of desired trajectory. An application to Van der Pol oscillator with state constraints illustrates the performance of proposed control.

关键词： Relaxation oscillators Unknown external disturbance System dynamics Mean Value Theorem for Integrals Constraint tracking control Closed loop systems

来源：评论

学校读者我要写书评

暂无评论

Robotic Software System for the Disaster Circumstances: System of Team KAIST in the DARPA robotics Challenge Finals

Robotic Software System for the Disaster Circumstances: Syst...

引用

IEEE-RAS International Conference on Humanoid Robots

作者： Jeongsoo Lim Inwook Shim Okkee Sim Hyunmin Joe Inhyeok Kim Jungho Lee Jun-Ho Oh Humanoid Research Center School of Mechanical Aerospace & Systems Engineering Department of Mechanical Engineering Korea Advanced Institute of Science and Technology Robotics and Computer Vision Laboratory Department of Electrical Engineering College of Information Science and Technology Korea Advanced Institute of Science and Technology Rainbow Co.

ISBN: (纸本)9781479968862

We developed a software system for operating the humanoid robot DRC-HUBO+ in disaster circumstances that the US Defense Advanced Research Projects Agency suggested. This system was developed under the consideration of the stability of whole system, the systemic software environment for multiple developers, and the recovery routine when the system encounters a seriously abnormal situation. With these design goals, we devised our strategy for three domains: system, vision, and communication. Following the strategy we made two software frameworks (PODO and VPC) and one logical flow of data for remote process management. With this software system, we conducted all Tasks in the DARPA robotics Challenge Finals, and we won the competition.

关键词： Software systems DARPA design target robotics Disasters Religious Missions flow datas

来源：评论

学校读者我要写书评

暂无评论

SIMO detection schemes for underwater optical wireless communication under turbulence

引用

Photonics Research 2015年第3期3卷 48-53页

作者： Weihao Liu Zhengyuan Xu Liuqing Yang School of Information Science and Technology University of Science and Technology of ChinaHefeiChina State Key Laboratory of Robotics Shenyang Institute of AutomationChinese Academy of SciencesShenyangChina Key Laboratory of Wireless-Optical Communications Chinese Academy of SciencesHefeiChina Department of Electrical and Computer Engineering Colorado State UniversityFort CollinsColorado 80521USA

In underwater optical wireless communication(UOWC),a channel is characterized by abundant scattering/absorption effects and optical *** previous studies on UOWC have been limited to scattering/absorption ***,experiments in the literature indicate that underwater optical turbulence(UOT)can cause severe degradation of UOWC *** this paper,we characterize an UOWC channel with both scattering/absorption and UOT taken into consideration,and a spatial diversity receiver scheme,say a singleinput–multiple-output(SIMO) scheme,based on a light-emitting-diode(LED) source and multiple detectors is proposed to mitigate deep *** Monte Carlo based statistical simulation method is introduced to evaluate the bit-error-rate performance of the *** is shown that spatial diversity can effectively reduce channel fading and remarkably extend communication range.

关键词： SIMO detection schemes for underwater optical wireless communication under turbulence than

来源：评论

学校读者我要写书评

暂无评论

Moth-inspired plume tracing via autonomous underwaer vehicle with only a pair of separated chemical sensors

Moth-inspired plume tracing via autonomous underwaer vehicle...

引用

OCEANS

作者： Yu Tian Wei Li Fumin Zhang State Key Laboratory of Robotics Chinese Academy of Sciences Shenyang China Department of Computer and Electrical Engineering and Computer Science California State University Bakersfield CA USA School of Electrical and Computer Engineering Georgia Institute of Technology Atlanta GA USA

Effective chemical plume tracing strategies are important for autonomous underwater vehicles (AUVs) to perform a variety of missions of searching for underwater targets, such as oil spill sources and deep-sea hydrothermal vents. In such circumstances where fluid flow direction cannot be measured by AUVs or fluid flow direction provides little or wrong information about the distribution of a dynamic chemical plume or its source location, chemical plume tracing strategies that rely on information of fluid flow direction may not work effectively. In this paper, a modified moth-inspired chemical plume tracing strategy is presented, which could trace a turbulent chemical plume without need of information of flow direction. The strategy estimates the direction of plume centerline based on information from a pair of spatially separated chemical sensors symmetrically mounted on an AUV's nose together with the AUV's zigzag plume-tracing trajectory, and employs the estimated direction of plume centerline to implement the plume tracing. The proposed strategy is implemented in a computer simulation environment and the simulation results demonstrate that with the strategy an AUV could track a turbulent chemical plume over a long distance and finally localize the plume source.

关键词： Chemicals Chemical and biological sensors Position measurement Chemical sensors Trajectory Robots

来源：评论

学校读者我要写书评

暂无评论

Non-parametric consistency test for multiple-sensing-modality data fusion

Non-parametric consistency test for multiple-sensing-modalit...

引用

International Conference on Information Fusion

作者： Marcos P. Gerardo-Castro Thierry Peynot Fabio Ramos Robert Fitch Australian Centre for Field Robotics (ACFR) University of Sydney NSW Australia School of Electrical Engineering and Computer Science Queensland University of Technology Brisbane QLD Australia School of Information Technologies University of Sydney NSW Australia

Fusing data from multiple sensing modalities, e.g. laser and radar, is a promising approach to achieve resilient perception in challenging environmental conditions. However, this may lead to catastrophic fusion in the presence of inconsistent data, i.e. when the sensors do not detect the same target due to distinct attenuation properties. It is often difficult to discriminate consistent from inconsistent data across sensing modalities using local spatial information alone. In this paper we present a novel consistency test based on the log marginal likelihood of a Gaussian process model that evaluates data from range sensors in a relative manner. A new data point is deemed to be consistent if the model statistically improves as a result of its fusion. This approach avoids the need for absolute spatial distance threshold parameters as required by previous work. We report results from object reconstruction with both synthetic and experimental data that demonstrate an improvement in reconstruction quality, particularly in cases where data points are inconsistent yet spatially proximal.

关键词： Robot sensing systems Data models Three-dimensional displays Silicon Radar Data integration

来源：评论

学校读者我要写书评

暂无评论

Pheromone-Based Kohonen Self-Organizing Map (PKSOM) in Clustering of Tropical Wood Species: Performance and Scalability

Pheromone-Based Kohonen Self-Organizing Map (PKSOM) in Clust...

引用

Asian Control Conference

作者： Azlin Ahmad Rubiyah Yusof Yasue Mitsukura Faculty of Computer and Mathematical Sciences Universiti Teknologi MARA (UiTM) Center of Artificial Intelligence and Robotics (CAIRO) Malaysia-Japan International Institute of Technology (MJIIT) Universiti Teknologi Malaysia (UTM) Graduate School of Science and Technology Keio University

ISBN: (纸本)9781479978632

Clustering is proposed to cluster the high dimensional data, into clusters of data that exhibit some similarities. Due to this ability, it has been chosen to solve many problems in various areas, including tropical wood species classification. It has ease the recognition process which has been done manually before. Pheromone-based Kohonen Self-Organizing Map (PKSOM) is proposed a clustering tool to cluster the wood datasets;the filtered and raw datasets. This paper discusses the performance and scalability of modified Kohonen Self-Organizing Map (KSOM), named Pheromone-based KSOM (PKSOM). The PKSOM algorithm is trained and tested using two types of wood datasets;the raw wood dataset and filtered dataset using Genetic Algorithm (GA). The results are then being compared with two conventional clustering methods;KSOM and standard K-Mean. As a conclusion, PKSOM has produced 97.5% of accuracy for the raw wood dataset and 97.55% for the filtered wood dataset, slightly higher compared to the other two methods.

关键词： Clustering Pheromone-Based KSOM (PKSOM) Pheromone Tropical Wood Species

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：