检索结果-内蒙古大学图书馆

Frontiers in Optics, FIO 2012

作者： Van Dijk, Thomas Bhargava, Rohit Carney, P. Scott Beckman Institute for Advanced Science and Technology 405 N Mathews Ave Urbana Il 61801 United States Department of Electrical and Computer Engineering 405 N Mathews Ave Urbana Il 61801 United States Department of Bioengineering University of Illinois at Urbana-Champaign 405 N Mathews Ave Urbana Il 61801 United States

Nanoparticles enhance local fields to amplify surface enhanced Raman spectroscopic signals. Field enhancement also increases optical extinction, unexpectedly shifting the maximum Raman scattering away from resonance. ... 详细信息

ISBN: (纸本)9781557529565

关键词： Light absorption

来源：评论

学校读者我要写书评

暂无评论

Surface-enhanced Raman spectroscopy study of single stranded DNA sequences on silver nanorod array

引用

AIP Conference Proceedings 2012年第1期1506卷 53-56页

作者： Kimber L. Brenneman Justin Abell Xenia Meshik Ke Xu Yiping Zhao Mitra Dutta Michael A. Stroscio Department of Bioengineering University of Illinois at Chicago Chicago IL 60607 USA Nanoscale Science and Engineering Center Department of Biological and Agricultural Engineering The University of Georgia Athens GA 30602 USA Department of Electrical & Computer Engineering University of Illinois at Chicago Chicago IL USA Nanoscale Science and Engineering Center Department of Physics and Astronomy The University of Georgia Athens GA 30602 USA Department of Electrical & Computer Engineering University of Illinois at Chicago Chicago IL USA and Department of Physics University of Illinois at Chicago Chicago IL 60607 USA Department of Bioengineering University of Illinois at Chicago Chicago IL 60607 USA and Department of Electrical & Computer Engineering University of Illinois at Chicago Chicago IL USA and Department of Physics University of Illinois at Chic USA

The spectral signatures of two samples of single stranded DNA were analyzed using Raman spectroscopy. One was a 15-base thymine sequence and the other was an aptamer containing thymine and guanine bases. A Surfaceenhanced Raman spectroscopy (SERS) substrate was used to enhance the signal to detectable levels. Many vibrational modes corresponding to bonds within DNA were detected.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Multi-server MMO Middleware: Unlocked

Multi-server MMO Middleware: Unlocked

引用

International Conference on P2P, Parallel, Grid, Cloud and Internet Computing (3PGCIC)

作者： Christopher McKnight Carl Stubens Yvonne Coady Kin Fun Li Software Engineering Program University of Victoria Victoria BC Canada Department of Computer Science University of Victoria Victoria BC Canada Department of Electrical and Computer Engineering University of Victoria Victoria BC Canada

Massively multiplayer online (MMO) games consist of huge worlds populated by thousands of clients, far beyond the ability of a single server to maintain. This naturally leads to the division of the game world into many partitions, each controlled by a single server. To provide players with the illusion of a single large world, some MMO systems divide their game world across servers and synchronize all nearby activity between them. To accomplish and synchronize player movement and interaction between servers, a system of inter-server locks are employed. These locks introduce considerable software complexity and network traffic overhead. We discuss the practical problems of such locking systems, and present an alternate approach. A lockless middleware design is described which implements sequential consistency using inter-server remote writes. This approach provides consistency across all clients and servers, allowing for seamless movement of clients within an arbitrarily large game world. We compare the lockless architecture to the traditional locking design, and analyze its performance.

关键词： Servers Games computer architecture Middleware Microprocessors Time factors Standards

来源：评论

学校读者我要写书评

暂无评论

Abstract planning for reactive robots

Abstract planning for reactive robots

引用

IEEE International Conference on Robotics and Automation (ICRA)

作者： Saket Joshi Paul Schermerhorn Roni Khardon Matthias Scheutz School of Electrical Engineering and Computer Science Oregon State University Corvallis OR USA Cognitive Science Program Indiana University Bloomington IN USA Department of Computer Science Tufts University Medford MA USA

Hybrid reactive-deliberative architectures in robotics combine reactive sub-policies for fast action execution with goal sequencing and deliberation. The need for replanning, however, presents a challenge for reactivity and hinders the potential for guarantees about the plan quality. In this paper, we argue that one can integrate abstract planning provided by symbolic dynamic programming in first order logic into a reactive robotic architecture, and that such an integration is in fact natural and has advantages over traditional approaches. In particular, it allows the integrated system to spend off-line time planning for a policy, and then use the policy reactively in open worlds, in situations with unexpected outcomes, and even in new environments, all by simply reacting to a state change executing a new action proposed by the policy. We demonstrate the viability of the approach by integrating the FODD-Planner with the robotic DIARC architecture showing how an appropriate interface can be defined and that this integration can yield robust goal-based action execution on robots in open worlds.

关键词： Robot sensing systems Planning Approximation methods Abstracts computer architecture

来源：评论

学校读者我要写书评

暂无评论

The Usefulness of Overheard Information for Collision Avoidance in a Single-hop Underwater Acoustic Networks

引用

Procedia engineering 2012年 32卷 329-335页

作者： N. Chirdchoo W.-S. Soh K.C. Chua P. Kovintavewat W. Cheunta Telecommunication Program Faculty of Science and Technology Nakhon Pathom Rajabhat UniversityNakhon Pathom 73000 Thailand Department of Electrical and Computer Engineering National University of Singapore Singapore Computer Industrial Technology Program Faculty of Science and Technology Nakhon Pathom Rajabhat UniversityNakhon Pathom73000 Thailand

A MAC protocol that depends on overheard information for its collision avoidance, such as Carrier Sense Multiple Access (CSMA) [1], may not work well in underwater, due to the long propagation delay characteristic of an underwater acoustic (UWA) channel. In such channel, the overheard information may already become obsolete by the time it reaches the node and, thus, should not be taken into account in the collision avoidance mechanism. Intuitively, the degree of usefulness of overheard information plays an important role in determining the network performance for channel listening-based MAC protocols. In this paper, we analytically study the usefulness of overheard information for collision avoidance in two different channel listening-based MAC protocols: (1) CSMA [1] and (2) Aloha-CA [2]. From our study, it is shown that the overheard information is beneficial for collision avoidance only if certain conditions can be satisfied. More specifically, in order for a node that overhears an ongoing transmission to be able to utilize the extracted information for collision avoidance, the node must be within a bounded region that is determined by the relative positions of the sender and the receiver, the packet's transmission time, as well as the length of the packet's header. Based on this analysis, we also present the “usefulness index (U)” which is defined as the degree of usefulness of information overheard.

关键词： Underwater acoustic network MAC protocol design Channel listening Collision avoidance

来源：评论

学校读者我要写书评

暂无评论

Light-triggered biocatalysis using thermophilic enzyme-gold nanoparticle complexes

Light-triggered biocatalysis using thermophilic enzyme-gold ...

引用

The 7th Sino-US Conference of Chemical engineering(第7届中美化学工程会议)

作者： Matthew D.Blankschien Lori A.Pretzer Ryan Huschka Naomi J.Halas Ramon Gonzalez Michael S.Wong Laboratory for Nanophotonics and the Rice Quantum Institute Rice University6100 Main StreetHoustonTexas 77005-1892United States Department of Chemical and Biomolecular EngineeringRice University6100 Main StreetHoustonTexas 77005-1892United States Department of Chemical and Biomolecular Engineering Rice University6100 Main StreetHoustonTexas 77005-1892United States Richard E.Smalley Institute for Nanoscale Science and Technology Rice University6100 Main StreetHoustonTexas 77005-1892United States Department of Civil and Environmental Engineering Rice University6100 Main StreetHoustonTexas 77005-1892United States Department of Bioengineering Rice University6100 Main StreetHoustonTexas 77005-1892United States Department of Chemical and Biomolecular EngineeringRice University6100 Main StreetHoustonTexas 77005-1892United States Department of Chemistry Rice University6100 Main StreetHoustonTexas 77005-1892United States Department of Physics and Astronomy Rice University6100 Main StreetHoustonTexas 77005-1892United States Laboratory for Nanophotonics and the Rice Quantum Institute Rice University6100 Main StreetHoustonTexas 77005-1892United States Richard E.Smalley Institute for Nanoscale Science and TechnologyRice University6100 Main StreetHoustonTexas 77005-1892United States Richard E.Smalley Institute for Nanoscale Science and Technology Rice University6100 Main StreetHoustonTexas 77005-1892United States Department of ChemistryRice University6100 Main StreetHoustonTexas 77005-1892United States Department of ChemistryRice University6100 Main StreetHoustonTexas 77005-1892United States Department of Bioengineering Rice University6100 Main StreetHoustonTexas 77005-1892United States Department of Electrical and Computer Engineering Rice University6100 Main StreetHoustonTexas 77005-1892United States

The use of plasmonic nanoparticle complexes for biomedical applications such as imaging,gene therapy,and cancer treatment is a rapidly emerging field expected to significantly improve conventional medical practices.

关键词： nanorod thermophilic enzyme alginate photothermal gold nanoparticles

来源：评论

学校读者我要写书评

暂无评论

Liquid‐Crystal Polymers: Topography from Topology: Photoinduced Surface Features Generated in Liquid Crystal Polymer Networks (Adv. Mater. 41/2013)

引用

Advanced Materials 2013年第41期25卷

作者： Michael E. McConney Angel Martinez Vincent P. Tondiglia Kyung Min Lee Derrick Langley Ivan I. Smalyukh Timothy J. White Air Force Research Laboratory Materials and Manufacturing Directorate 3005 Hobson Way WPAFB OH 45434 USA Department of Physics Liquid Crystal Materials Research Center Department of Electrical Computer and Energy Engineering and Materials Science Engineering Program University of Colorado Boulder Colorado 80309 USA Renewable and Sustainable Energy Institute National Renewable Energy Laboratory and University of Colorado Boulder Colorado 80309 USA Air Force Institute of Technology Department of Electrical and Computer Engineering 2950 Hobson Way WPAFB OH 45433 USA

来源：评论

学校读者我要写书评

暂无评论

Involving older adults in the design and development of free/open source software

Involving older adults in the design and development of free...

引用

IEEE Symposium on Visual Languages and Human Centric Computing (VL/HCC)

作者： Jennifer L. Davidson IGERT in Aging Sciences Program Center for Healthy Aging Research Department of Electrical Engineering and Computer Science Oregon State University Corvallis OR USA

An age wave is upon us, and many tech-savvy older adults are reaching retirement. To explore the barriers and benefits of engaging this population, promote an active post-working life, and foster community, we plan to involve retired programmers in the development of a free/open source software (FOSS) health and wellness application. FOSS communities are dominated by young male developers, and can be hostile to outsiders despite a shared philosophical alignment of altruistic motivations often embraced by retirees. I expect to contribute to the field by exploring the benefits and barriers of involving older adults in FOSS communities, as well as how they can benefit each other by collaborating to develop a meaningful product with and for older adults.

关键词： Communities Aging Open source software Sociology Statistics Prototypes

来源：评论

学校读者我要写书评

暂无评论

Reports of the AAAI 2011 conference workshops

Reports of the AAAI 2011 conference workshops

引用

作者： Agmon, Noa Agrawal, Vikas Aha, David W. Aloimonos, Yiannis Buckley, Donagh Doshi, Prashant Geib, Christopher Grasso, Floriana Green, Nancy Johnston, Benjamin Kaliski, Burt Kiekintveld, Christopher Law, Edith Lieberman, Henry Mengshoel, Ole J. Metzler, Ted Modayil, Joseph Oard, Douglas W. Onder, Nilufer O'Sullivan, Barry Pastra, Katerina Precup, Doina Ramachandran, Sowmya Reed, Chris Sariel-Talay, Sanem Selker, Ted Shastri, Lokendra Singh, Satinder Smith, Stephen F. Srivastava, Siddharth Sukthankar, Gita Uthus, David C. Williams, Mary-Anne Department of Computer Science University of Texas at Austin United States Center for Knowledge Driven Information Systems Infosys Labs India Adaptive Systems Section Naval Research Laboratory Washington DC United States Department of Computer Science University of Maryland College Park United States EMC's Center of Excellence in Ireland Research Europe at EMC Ireland Department of Computer Science University of Georgia United States School of Informatics University of Edinburgh United Kingdom Department of Computer Science University of Liverpool United Kingdom Department of Computer Science University of North Carolina Greensboro United States Faculty of Engineering and Information Technology University of Technology Sydney Australia VeriSign Inc. United States Department of Computer Science University of Texas at El Paso United States Machine Learning Department Carnegie Mellon University United States Massachusetts Institute of Technology Media Laboratory United States Carnegie Mellon University's Silicon Valley Campus United States Darrell W. Hughes Program for Religion and Science Dialogue Oklahoma City University United States Department of Computing Science University of Alberta Canada College of Information Studies Institute for Advanced Computer Studies University of Maryland College Park United States Department of Computer Science Michigan Technological University United States Department of Computer Science University College Cork Ireland Cognitive Systems Research Insitute Athens Greece School of Computer Science McGill University Canada Stottler Henke Inc. United States School of Computing University of Dundee United Kingdom Department of Computer Engineering Istanbul Technical University Turkey Convergence Lab Infosys Technologies Ltd. United States Department of Electrical Engineering and Computer Science University of Michigan Ann Arbor United States Robotics Institute Carnegie Mellon University United States University of Wisconsin

The AAAI-11 workshop program was held Sunday and Monday, August 7-18, 2011, at the Hyatt Regency San Francisco in San Francisco, California USA. The AAAI-11 workshop program included 15 workshops covering a wide range of topics in artificial intelligence. The titles of the workshops were Activity Context Representation: Techniques and Languages;Analyzing Microtext;Applied Adversarial Reasoning and Risk Modeling;Artificial Intelligence and Smarter Living: The Conquest of Complexity;Artifiicial Intelligence for Data Center Management and Cloud Computing;Automated Action Planning for Autonomous Mobile Robots;Computational Models of Natural Argument;Generalized Planning;Human Computation;Human-Robot Interaction in Elder Care;Interactive Decision Theory and Game Theory, 2010;Language-Action Tools for Cognitive Artificial Agents: Integrating Vision, Action, and Language;Lifelong Learning from Sensorimotor Experience;Plan, Activity, and Intent Recognition;and Scalable Integration of Analytics and Visualization. This article presents short summaries of those events. Copyright © 2012, 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

A framework for relating neural activity to freely moving behavior

A framework for relating neural activity to freely moving be...

引用

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

作者： Justin D. Foster Paul Nuyujukian Oren Freifeld Stephen I. Ryu Michael J. Black Krishna V. Shenoy Department of Electrical Engineering University of Stanford Stanford CA USA Bioengineering and Stanford Medical School University of Stanford Stanford CA USA Division of Applied Mathematics Brown University Providence RI USA Department of Neurosurgery Palo Alto Medical Foundation Palo Alto CA USA Department of Computer Science Brown University Providence RI USA Departments of Electrical Engineering Bioengineering and Neurobiology Neurosciences Program Neurosciences Program University of Stanford Stanford CA USA

Two research communities, motor systems neuroscience and motor prosthetics, examine the relationship between neural activity in the motor cortex and movement. The former community aims to understand how the brain controls and generates movement; the latter community focuses on how to decode neural activity as control signals for a prosthetic cursor or limb. Both have made progress toward understanding the relationship between neural activity in the motor cortex and behavior. However, these findings are tested using animal models in an environment that constrains behavior to simple, limited movements. These experiments show that, in constrained settings, simple reaching motions can be decoded from small populations of spiking neurons. It is unclear whether these findings hold for more complex, full-body behaviors in unconstrained settings. Here we present the results of freely-moving behavioral experiments from a monkey with simultaneous intracortical recording. We investigated neural firing rates while the monkey performed various tasks such as walking on a treadmill, reaching for food, and sitting idly. We show that even in such an unconstrained and varied context, neural firing rates are well tuned to behavior, supporting findings of basic neuroscience. Further, we demonstrate that the various behavioral tasks can be reliably classified with over 95% accuracy, illustrating the viability of decoding techniques despite significant variation and environmental distractions associated with unconstrained behavior. Such encouraging results hint at potential utility of the freely-moving experimental paradigm.

关键词： Legged locomotion Maximum likelihood decoding Kinematics Animals Educational institutions Cameras Neuroscience

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：