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International Conference on Mobile Ad-hoc and Sensor Networks, MSN

作者： Kun-Ming Yu Jian-Yuan Liou Bo-Han Yeh Chang Wu Yu Ching-Cheng Tien Chih-Hu Wang Ping-Yu Wang Department of Computer Science and Information Engineering Chung Hua University Taiwan Program of Technology Management Chung Hua University Taiwan Department of Electrical Engineering Chung Hua University Taiwan

The paper employed some independently developed sensors based on the Octopus X platform to build a Zigbee-based Sensor Networks. Also, we implemented a Location-aware living environment by deploying the developed Zigee-based sensor. Besides, through the created window console interface, the sensed data can be transmitted and transformed to the database for further utilized. Moreover, by the devised Web interface, the update request data can be observed efficiently and responded effectively to any situations.

关键词： Zigbee Wireless sensor networks Software Hardware Wireless communication Databases Temperature sensors

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Inspiring future electrical engineers through science teachers

Inspiring future electrical engineers through science teache...

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2010 ASEE Annual Conference and Exposition

作者： Kaiser, Todd Taylor, Peggy Plumb, Carolyn Tenenbaum, Howard Hodges, Seth Department of Electrical and Computer Engineering Montana State University United States Program Montana State University United States Educational Innovation and Strategic Projects College of Engineering Montana State University United States La Jolla High School United States St. Michael Indian School St. Michaels AZ United States

An engineering course was developed for the Masters of Science in Science Education program that introduces science teachers to the concepts necessary to understand the principles governing the operation of silicon solar cells. The summer course stresses that engineering is applied science and uses multi-disciplinary understanding of the physical sciences to understand, develop, and fabricate solar cells. The teachers went into the clean room and completed the processing steps to produce functional solar cells, then they tested and characterized them. The teachers left with a souvenir wafer and course material that aided them in the introduction of subject matter into their curricula. program assessment was conducted and course outcomes measured through teacher surveys. © American Society for engineering Education, 2010.

关键词： Silicon solar cells

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TEXAS HOLD'EM ALGORITHMS FOR DISTRIBUTED COMPRESSIVE SENSING

TEXAS HOLD'EM ALGORITHMS FOR DISTRIBUTED COMPRESSIVE SENSING

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IEEE International Conference on Acoustics, Speech, and Signal Processing

作者： Stephen R. Schnelle Jason N. Laska Chinmay Hegde Marco F. Duarte Mark A. Davenport Richard G. Baraniuk Department of Electrical and Computer Engineering Rice University Houston TX 77005 Program in Applied and Computational Mathematics Princeton University Princeton NJ 08544

ISBN: (纸本)9781424442959

This paper develops a new class of algorithms for signal recovery in the distributed compressive sensing (DCS) framework. DCS exploits both intra-signal and inter-signal correlations through the concept of joint sparsity to further reduce the number of measurements required for recovery. DCS is well-suited for sensor network applications due to its universality, computational asymmetry, tolerance to quantization and noise, and robustness to measurement loss. In this paper we propose recovery algorithms for the sparse common and innovation joint sparsity model. Our approach leads to a class of efficient algorithms, the Texas Hold 'Em algorithms, which are scalable both in terms of communication bandwidth and computational complexity.

关键词： Signal reconstruction multisensor systems data compression Multisensor systems Signal reconstruction Data compression New classes algorithms Texas Signal restoration Quantization Scalability

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KRONECKER PRODUCT MATRICES FOR COMPRESSIVE SENSING

KRONECKER PRODUCT MATRICES FOR COMPRESSIVE SENSING

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IEEE International Conference on Acoustics, Speech, and Signal Processing

作者： Marco F. Duarte Richard G. Baraniuk Program in Applied and Computational Mathematics Princeton University Princeton NJ 08544 Department of Electrical and Computer Engineering Rice University Houston TX 77005

ISBN: (纸本)9781424442959

Compressive sensing (CS) is an emerging approach for acquisition of signals having a sparse or compressible representation in some basis. While CS literature has mostly focused on problems involving 1-D and 2-D signals, many important applications involve signals that are multidimensional. We propose the use of Kronecker product matrices in CS for two purposes. First, we can use such matrices as sparsifying bases that jointly model the different types of structure present in the signal. Second, the measurement matrices used in distributed measurement settings can be easily expressed as Kronecker products. This new formulation enables the derivation of analytical bounds for sparse approximation and CS recovery of multidimensional signals.

关键词： Data compression multidimensional signal processing signal reconstruction

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Fluidic lens laparoscopic zoom camera for minimally invasive surgery

Fluidic lens laparoscopic zoom camera for minimally invasive...

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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

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Successful women engineering students: A survey assessment to guide our efforts to boost women's retention

Successful women engineering students: A survey assessment t...

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2010 ASEE Annual Conference and Exposition

作者： Knight, Daniel Corner Sr., Katie Louie, Beverly Shoals Sr., Amber Cabrales, Cindy Integrated Teaching and Learning Program College of Engineering and Applied Science University of Colorado Boulder United States Department of Electrical and Computer Engineering University of Colorado Boulder United States Center College of Engineering and Applied Science University of Colorado Boulder United States College of Engineering and Applied Science University of Colorado Boulder United States Student Affairs Division Student Organizations Finance Office University of Colorado Boulder United States

In the fall of 2009, a college of engineering and applied science at a public, Rocky Mountain region university embarked on a new inclusive excellence initiative called Broadening Opportunity through Leadership & Diversity (BOLD). The BOLD Center is a new K-16 organizational structure to increase the performance, representation and retention through graduation of students who are underrepresented in engineering, including women, students of color, low income and first generation college attendees. A BOLD Center focus of concern is the declining retention rate of women that has dipped below that of men recently in our College. A survey consisting of 41 questions was distributed to all undergraduate engineering women in the college that incorporates scales from the Assessing Women in engineering (AWE) assessment and from the Academic Pathways of People Learning engineering Survey (APPLES). Five research questions were posed in the survey design: • Do women express a loss of interest during their program? • Is there a chilly climate for women in the college? • Do women?s self-efficacy levels change during the program? • Do academic performance levels play a role in women?s retention in engineering? • Do women have an adequate support structure in the college? The survey generated 116 responses from 2 solicitations, with women students represented from every major across all four undergraduate years. An unintended outcome was that the sample largely consists of women with high grade point averages. Thus, this paper offers insight on top performing women?s self-efficacy and their views on the college climate, the benefits from various support systems - advising, mentoring, social and financial - and the existing programming and initiatives that can play a role in their achievements. The results indicate that women students are interested and efficacious with respect to obtaining an engineering degree, and that the college climate is, on average, warm and accepting. Howev

关键词： Students

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A portable, inexpensive, wireless vital signs monitoring system

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Biomedical Instrumentation and Technology 2010年第4期44卷 350-353页

作者： Kaputa, David Price, David Enderle, John D. Biomedical Engineering University of Connecticut Storrs CT United States Abiomed Danvers MA United States Biomedical Engineering Program Department of Electrical and Computer Engineering University of Connecticut United States

The University of Connecticut, department of Biomedical engineering has developed a device to be used by patients to collect physiological data outside of a medical facility. This device facilitates modes of data collection that would be expensive, inconvenient, or impossible to obtain by traditional means within the medical facility. Data can be collected on specific days, at specific times, during specific activities, or while traveling. The device uses biosensors to obtain information such as pulse oximetry (SpO2), heart rate, electrocardiogram (ECG), non-invasive blood pressure (NIBP), and weight which are sent via Bluetooth to an interactive monitoring device. The data can then be downloaded to an electronic storage device or transmitted to a company server, physician's office, or hospital. The data collection software is usable on any computer device with Bluetooth capability, thereby removing the need for special hardware for the monitoring device and reducing the total cost of the system. The modular biosensors can be added or removed as needed without changing the monitoring device software. The user is prompted by easy-to-follow instructions written in non-technical language. Additional features, such as screens with large buttons and large text, allow for use by those with limited vision or limited motor skills.

关键词： Blood pressure

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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...

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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

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Wafer bonding technique based GaN/Quantum Dots/GaN system

Wafer bonding technique based GaN/Quantum Dots/GaN system

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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

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Decoder remapping to counteract neuron loss in brain-machine interfaces

Decoder remapping to counteract neuron loss in brain-machine...

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

作者： Rodolphe Heliot Subramaniam Venkatraman Jose M. Carmena CEA LETI MINATEC France Department of Electrical Engineering and Computer Sciences University of California Berkeley CA USA QUALCOMM Inc.orporated USA Department of Electrical Engineering and Computer Sciences Helen Wills Neuroscience Institute and Program in Cognitive Science University of California Berkeley CA USA

Variability of single-unit neural recordings can significantly affect the overall performance achieved by brain machine interfaces (BMI). In this paper, we present a novel technique to adapt a linear filter commonly used in BMI to compensate for loss of neurons from the recorded neural ensemble, thus minimizing loss in performance. We simulate the gains achieved by this technique using a model of the learning process during closed-loop BMI operation. This simulation suggests that we can adapt to the loss of 24% of the neurons controlling a BMI with only 13% drop in performance.

关键词： Neurons Decoding Firing Wiener filter Brain modeling Maximum likelihood detection Nonlinear filters

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