检索结果-内蒙古大学图书馆

2010 ASEE Annual Conference and Exposition

作者： Johrendt, Jennifer Hector, Schantal Northwood, Derek Benzinger, Karen Salinitri, Geri Jaekel, Arunita Watters, Michelle Department of Mechanical and Automotive Engineering University of Windsor Canada International Relations and Economics University of Windsor Canada Department of Engineering Materials University of Windsor Canada Centre for Career Education University of Windsor Canada Mentor Training Program for Teachers and Student Leaders University of Windsor Canada School of Computer Science University of Windsor Canada University of Windsor Canada University of Wisconsin Stout United States

In 2007, the University of Windsor established formal learning outcomes for their cooperative education program and implemented new educational strategies to support the achievement of those outcomes. To gauge the effect of the newly implemented activities on the achievement of the learning outcomes, a survey was developed and administered to students and alumni of the unrevised program (control group) and, more recently in 2009, to students participating in the revised program (experimental group). The survey questions were designed to assess respondents' perceptions of the effect that co-op had on: their academic and career-related goals and motivation;identification of personal strengths, weaknesses and preferences;understanding of academic theory and technical knowledge;development of attributes;and the ability to effectively contribute in the workplace through identified soft and transferable industry-related skills. Students participating in co-op at the University of Windsor may complete regular or extended length work terms. Regular work terms are generally four-months in length, while extended work terms are at least eight months long, although many companies request co-op students for twelve to sixteen month periods. The survey demographics included a question about work term duration, so that the effects of work term length on learning outcomes achievement might also be examined. Although the survey revealed some positive trends related to learning outcomes achievement for control versus experimental groups, they were not at statistically significant levels. However, if the analysis was limited to students who had completed extended work terms, three areas showed changes at statistically significant levels. Decreases in positive response levels were seen for the experimental group with respect to students' abilities to identify personal weaknesses related to their academic options and personal preferences related to workplace options. An increase in posit

关键词： Students

来源：评论

学校读者我要写书评

暂无评论

Simultaneous learning of spatial visual attention and physical actions

Simultaneous learning of spatial visual attention and physic...

引用

2010 IEEE/RSJ International Conference on Intelligent Robots and Systems

作者： Ali Borji Majid Nili Ahmadabadi Babak Nadjar Araabi Department of Computer Science University of Southern California Los Angeles CA USA School of Cognitive Sciences Institute of Studies in Theoretical Physics and Mathematics Tehran Iran School of Electrical and Computer Engineering University of Tehran Tehran Iran

This paper introduces a new method for learning top-down and task-driven visual attention control along with physical actions in interactive environments. Our method is based on the Reinforcement Learning of Visual Classes(RLVC) algorithm and adapts it for learning spatial visual selection in order to reduce computational complexity. Proposed algorithm also addresses aliasings due to not knowing previous actions and perceptions. Continuing learning shows our method is robust to perturbations in perceptual information. Our method also allows object recognition when class labels are used instead of physical actions. We have tried to gain maximum generalization while performing local processing. Experiments over visual navigation and object recognition tasks show that our method is more efficient in terms of computational complexity and is biologically more plausible.

关键词： Visualization Object recognition Navigation Learning History Biology Feature extraction

来源：评论

学校读者我要写书评

暂无评论

Wafer bonding technique based GaN/Quantum Dots/GaN system

Wafer bonding technique based GaN/Quantum Dots/GaN system

引用

IEEE Southeastcon

作者： Ying Li Edward Stokes Optical Science and Engineering Program University of North Carolina Charlotte Charlotte NC USA Department of Electrical and Computer Engineering University of North Carolina Charlotte Charlotte NC USA

ISBN: (纸本)9781424458547

Integration of colloidal semiconductor quantum dots with epitaxial semiconductor materials offers the possibility of a wide variety of new device structures. In this work, wafer bonding processes for layered GaN/Quantum Dots/GaN structures are described. Bonding is achieved by thermal reorganization of bidentate ligand thiophenethiol which initially caps the CdSe/ZnS core/shell quantum dots. Annealing temperature dependent bond strength feature is characterized. Maximum bond strength is achieved after annealing at 350°C. Effect of annealing on quantum dot photoluminescence is also investigated.

关键词： Gallium nitride Wafer bonding Quantum dots

来源：评论

学校读者我要写书评

暂无评论

A fuzzy inference system to determine the number of clones in the clonal selection algorithm

A fuzzy inference system to determine the number of clones i...

引用

World Congress on Nature & Biologically Inspired Computing (NaBIC)

作者： Luiz Antonio Carraro Leandro Nunes de Castro Angelita Maria de Ré Computer and Informatics Faculty & Graduate Program in Electrical Engineering Mackenzie University São Paulo Brazil Computer Science Department State University of West-Center Parana Guarapuava Brazil

Artificial Immune Systems (AISs) are composed of techniques inspired by immunology. The clonal selection principle ensures the organism adaptation to fight invading antigens by an immune response activated by the binding of antigens and antibodies. As an immune response can be elicited even when the binding between an antigen and an antibody is not perfect, an approximate binding might suffice, and a Fuzzy Logic mechanism might be the most appropriate mechanism to control such process. This paper presents a novel hybrid model based on concepts of Immune and Fuzzy Systems with applications to pattern recognition problems. The preliminary results obtained here suggest the proposed model is a promising pattern recognition tool.

关键词： Variable speed drives Animals

来源：评论

学校读者我要写书评

暂无评论

An agent-based architecture for knowledge management in context-aware business processes

An agent-based architecture for knowledge management in cont...

引用

International Conference on computer Supported Cooperative Work in Design

作者： De C. Gatti, Leonardo A. Santoro, Flávia Maria Nunes, Vanessa T. NP2TEC - Research and Practice Group in Information Technology Department of Applied Informatics Federal University of the State of Rio de Janeiro UNIRIO Rio de Janeiro Brazil COPPE - Systems Engineering and Computer Science Program Federal University of Rio de Janeiro UFRJ Rio de Janeiro Brazil

ISBN: (纸本)9781424467631

The main knowledge management challenges are to capture, store and reuse contextual knowledge generated during interactions that occur daily in an organization. In this paper, we propose an activity context-aware architecture to support knowledge management in working processes. The required features for this architecture are processing, reasoning and sharing contextual knowledge involving information about activities performed. We also present results from evaluation of our proposal - A-CoBrA - for a specific domain. © 2010 IEEE.

关键词： Knowledge management

来源：评论

学校读者我要写书评

暂无评论

Sparse dictionary methods for EEG signal classification in face perception

Sparse dictionary methods for EEG signal classification in f...

引用

IEEE Workshop on Machine Learning for Signal Processing

作者： Shahriar Shariat Vladimir Pavlovic Thomas Papathomas Ainsley Braun Pawan Sinha Department Computer Science Rutgers University Piscataway NJ USA Department of Biomedical Engineering and RuCCS/Lab of Vision Research Rutgers University Piscataway NJ USA Department of Brain and Cognitive Sciences MIT Cambridge MA USA

This paper presents a systematic application of machine learning techniques for classifying high-density EEG signals elicited by face and non-face stimuli. The two stimuli used here are derived from the vase-faces illusion and share the same defining contours, differing only slightly in stimulus space. This emphasizes activity differences related to high-level percepts rather than low-level attributes. This design decision results in a difficult classification task for the ensuing EEG signals. Traditionally, EEG analyses are done on the basis of signal processing techniques involving multiple instance averaging and then a manual examination to detect differentiating components. The present study constitutes an agnostic effort based on purely statistical estimates of three major classifiers: L1-norm logistic regression, group lasso and k Nearest Neighbors (kNN); kNN produced the worst results. L1 regression and group lasso show significantly better performance, while being abl e to identify distinct spatio-temporal signatures. Both L1 regression and group lasso assert the saliency of samples in 170ms, 250ms, 400ms and 600ms after stimulus onset, congruent with the previously reported ERP components associated with face perception. Similarly, spatial locations of salient markers point to the occipital and temporal brain regions, previously implicated in visual object perception. The overall approach presented here can provide a principled way of identifying EEG correlates of other perceptual/cognitive tasks.

关键词： Face Electroencephalography Logistics Brain models Visualization Dictionaries

来源：评论

学校读者我要写书评

暂无评论

Fluidic lens laparoscopic zoom camera for minimally invasive surgery

Fluidic lens laparoscopic zoom camera for minimally invasive...

引用

作者： Tsai, Frank S. Johnson, Daniel Francis, Cameron S. Cho, Sung Hwan Qiao, Wen Arianpour, Ashkan Lo, Yu-Hwa Department of Electrical and Computer Engineering Jacobs School of Engineering University of California San Diego San Diego CA 92093-0407 United States Materials Science and Engineering Program Jacobs School of Engineering University of California San Diego San Diego CA 92093-0418 United States Department of Surgery School of Medicine University of California San Diego San Diego CA 92093-8220 United States

We developed a miniaturized laparoscopic zoom camera that is 17 mm long, has >4X optical zoom, and works under 300 lux. This camera is suitable for advancing minimally invasive surgery. Demonstration surgery (chole... 详细信息

ISBN: (纸本)9781557528902

关键词： Laparoscopy

来源：评论

学校读者我要写书评

暂无评论

Computationally effective stereovision SLAM

Computationally effective stereovision SLAM

引用

IEEE International Workshop on Imaging Systems and Techniques (IST)

作者： Lazaros Nalpantidis Georgios Ch. Sirakoulis Andrea Carbone Antonios Gasteratos Laboratory of Robotics and Automation Department of Production and Management Engineering Democritus University of Thrace Xanthi Greece Laboratory of Electronics Department of Electrical and Computer Engineering Democritus University of Thrace Xanthi Greece Autoagent Laboratory of Cognitive Robotics Department of Computer and Systems Science University of Roma La Sapienza Rome Italy

In this paper a visual Simultaneous Localization and Mapping (SLAM) algorithm suitable for indoor area measurement applications is proposed. The algorithm is focused on computational effectiveness. The only sensor used is a stereo camera placed onboard a moving robot. The algorithm processes the acquired images calculating the depth of the scenery, detecting occupied areas and progressively building a map of the environment. The stereo vision-based SLAM algorithm embodies a custom-tailored stereo correspondence algorithm, the robust scale and rotation invariant feature detection and matching Speeded Up Robust Features (SURF) method, a computationally effective v-disparity image calculation scheme, a novel map-merging module, as well as a sophisticated Cellular Automata (CA)-based enhancement stage. The proposed algorithm is suitable for autonomously mapping and measuring indoor areas using robots. The algorithm is presented and experimental results for self-captured image sets are provided and analyzed.

关键词： Simultaneous localization and mapping Area measurement Robustness computer vision Robot vision systems Cameras Robot sensing systems Robotics and automation Image analysis Algorithm design and analysis

来源：评论

学校读者我要写书评

暂无评论

Ab initio investigation of barium-scandium-oxygen coatings on tungsten for electron emitting cathodes

引用

Physical Review B 2010年第5期81卷 054207-054207页

作者： Vasilios Vlahos John H. Booske Dane Morgan Interdisciplinary Materials Science Program University of Wisconsin–Madison 1509 University Avenue Madison Wisconsin 53706 USA Department of Electrical and Computer Engineering University of Wisconsin–Madison 1415 Engineering Drive Madison Wisconsin 53706 USA Department of Materials Science and Engineering University of Wisconsin–Madison 1509 University Avenue Madison Wisconsin 53706 USA

Microwave, x-ray, and radio-frequency radiation sources require a cathode emitting electrons into vacuum. Thermionic B-type dispenser cathodes consist of BaxOz coatings on tungsten (W), where the surface coatings lower the W work function and enhance electron emission. The new and promising class of scandate cathodes modifies the B-type surface through inclusion of Sc, and their superior emissive properties are also believed to stem from the formation of a low work function surface alloy. In order to better understand these cathode systems, density-functional theory (DFT)-based ab initio modeling is used to explore the stability and work function of BaxScyOz on W(001) monolayer-type surface structures. It is demonstrated how surface depolarization effects can be calculated easily using ab initio calculations and fitted to an analytic depolarization equation. This approach enables the rapid extraction of the complete depolarization curve (work function versus coverage relation) from relatively few DFT calculations, useful for understanding and characterizing the emitting properties of novel cathode materials. It is generally believed that the B-type cathode has some concentration of Ba-O dimers on the W surface, although their structure is not known. Calculations suggest that tilted Ba-O dimers are the stable dimer surface configuration and can explain the observed work function reduction corresponding to various dimer coverages. Tilted Ba-O dimers represent a new surface coating structure not previously proposed for the activated B-type cathode. The thermodynamically stable phase of Ba and O on the W surface was identified to be the Ba0.25O configuration, possessing a significantly lower Φ value than any of the Ba-O dimer configurations investigated. The identification of a more stable Ba0.25O phase implies that if Ba-O dimers cover the surface of emitting B-type cathodes, then a nonequilibrium steady state must dominate the emitting surface. The identification of a

关键词：

来源：评论

学校读者我要写书评

暂无评论

Technologies for continuous glucose monitoring: Current problems and future promises

引用

Journal of Diabetes science and Technology 2010年第6期4卷 1540-1562页

作者： Vaddiraju, Santhisagar Burgess, Diane J. Tomazos, Ioannis Jain, Faquir C. Papadimitrakopoulos, Fotios Nanomaterials Optoelectronics Laboratory Institute of Materials Science University of Connecticut Storrs CT United States Biorasis Inc. Technology Incubation Program University of Connecticut Storrs CT United States Department of Pharmaceutical Sciences University of Connecticut Storrs CT United States Electrical and Computer Engineering University of Connecticut Storrs CT United States Department of Chemistry University of Connecticut Storrs CT United States

Devices for continuous glucose monitoring (CGM) are currently a major focus of research in the area of diabetes management. It is envisioned that such devices will have the ability to alert a diabetes patient (or the parent or medical care giver of a diabetes patient) of impending hypoglycemic/ hyperglycemic events and thereby enable the patient to avoid extreme hypoglycemic/hyperglycemic excursions as well as minimize deviations outside the normal glucose range, thus preventing both life-threatening events and the debilitating complications associated with diabetes. It is anticipated that CGM devices will utilize constant feedback of analytical information from a glucose sensor to activate an insulin delivery pump, thereby ultimately realizing the concept of an artificial pancreas. Depending on whether the CGM device penetrates/breaks the skin and/or the sample is measured extracorporeally, these devices can be categorized as totally invasive, minimally invasive, and noninvasive. In addition, CGM devices are further classified according to the transduction mechanisms used for glucose sensing (i.e., electrochemical, optical, and piezoelectric). However, at present, most of these technologies are plagued by a variety of issues that affect their accuracy and long-term performance. This article presents a critical comparison of existing CGM technologies, highlighting critical issues of device accuracy, foreign body response, calibration, and miniaturization. An outlook on future developments with an emphasis on long-term reliability and performance is also presented. © Diabetes Technology Society.

关键词： Accuracy Calibration Continuous glucose monitoring Glucose detection Glucose sensors Invasiveness

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：