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Asia-Pacific Network Operations and Management Symposium (APNOMS)

作者： R. Chen Meng-Hsun Tsai Tony Wrobel Jui-Ming Chen Sih-Han Wang Shu-Shan Ku Jen-Huei Jung Jeu-Yih Jeng IBM Taipei Taiwan Department of Computer Science and Information Engineering National Cheng Kung University Tainan Taiwan IBM USA Networked Communications Program Taipei Taiwan Department of Computer Science National Chiao Tung University Hsinchu Taiwan Telecommunication Laboratories Chunghwa Telecom Company Limited Taipei Taiwan

As mobile technologies evolved, the mobile networks provided users not only high mobility, but also high data rates and flexible services. Meanwhile, Internet services had been very successful from 1970s to date. However, the Internet and the mobile telecommunications evolved separately and were not compatible until 3GPP proposed the IP Multimedia Subsystem (IMS). In this paper, we first introduce mobile Web 2.0 application creation in the next generation IMS network. Then we propose a proof-of-concept service called “JoinMe” on the IBM-NCTU IMS network to study how a social networking service can be created for mobile networks.

关键词： Mobile communication Servers Mobile computing Next generation networking Telecommunications Social network services Internet

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Noise-based information processing

Noise-based information processing

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International Conference on Noise and Fluctuations (ICNF)

作者： Laszlo B. Kish Sunil P. Khatri Sergey M. Bezrukov Ferdinand Peper Zoltan Gingl Tamas Horvath Department of Electrical and Computer Engineering Texas A and M University USA Laboratory of Physical and Structural Biology Program in Physical Biology NICHD National Institutes of Health DHHS Bethesda MD USA National Institute of Information and Communications Technology Kobe Japan Department of Experimental Physics University of Szeged Szeged Hungary Department of Computer Science University of Bonn Germany Schloss Birlinghoven Fraunhofer IAIS Sankt Augustin Germany

We briefly introduce noise-based logic. After describing the main motivations we outline classical, instantaneous (squeezed and non-squeezed), continuum, spike and random-telegraph-signal based schemes with applicatio... 详细信息

关键词： Logic gates Noise Power dissipation Multivalued logic Neurons Hardware computers

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Assessing the intercultural competence of sophomore mechanical engineering students: Baseline data and analysis

Assessing the intercultural competence of sophomore mechanic...

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2010 ASEE Annual Conference and Exposition

作者： Thompson, Juila Jesiek, Brent Atkinson, Dianne Dept. of Engineering Education Purdue University United States Dept. of Engineering Education and Electrical and Computer Engineering Purdue University United States School of Mechanical Engineering Purdue University Technical Communications Program United States

This paper presents baseline analysis of Intercultural Development Inventory (IDI) results for approximately five hundred sophomore mechanical engineering students at Purdue University. The IDI is a statistically reliable and cross-culturally valid measure of an individual's actual and perceived intercultural development. This instrument is being used by Purdue's School of Mechanical engineering, particularly to assess students who are involved in global educational programs such as Global engineering Alliance for Research and Education (GEARE). In this paper we examine IDI results for Purdue sophomore mechanical engineering students, including comparisons based on gender, amount of time spent living abroad, and whether or not they later participated in GEARE. We intend that our results will provide valuable baseline data for sophomore mechanical engineering students, thereby paving the way for cross-institutional comparisons, and enhancing the ability of university staff to design courses and experiences for students that match their current levels of intercultural sensitivity. We conclude with suggestions for further research and analysis, such as collecting and analyzing post-experience IDI data for students who have participated in global educational experiences. © American Society for engineering Education, 2010.

关键词： Students

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Assembly of CdSeS(ZnS) quantum dots in langmuir films with tertiary alkyl phosphine ligands

Assembly of CdSeS(ZnS) quantum dots in langmuir films with t...

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Nanotechnology - General - 214th ECS Meeting/PRiME 2008

作者： Giles, Alexander J. Pagan, J. Patel, K. Stokes, E.B. Nanoscale Science Graduate Program Department of Chemistry University of North Carolina at Charlotte 9201 University City Boulevard Charlotte NC 28223 United States Dot Metrics Technologies Charlotte Research Institute University of North Carolina at Charlotte 9201 University City Boulevard Charlotte NC 28223 United States Department of Electrical and Computer Engineering University of North Carolina at Charlotte 9201 University City Boulevard Charlotte NC 28223 United States Center for Optoelectronics and Optical Communications University of North Carolina al Charlotte 9201 University City Boulevard Charlotte NC 28223 United States

ISBN: (纸本)9781615672998

The focus of this paper is to describe studies on pre-prepared hydrophobic CdSeS(ZnS) quantum dots (QDs) at the air-water interface. Surface pressure-area (π-A) isotherms were extensively studied using QDs capped with either trioclylphosphine oxide or triethylphosphine oxide. The role of these two different ligands on monolayer behavior and thin film quality has been investigated using the Langmuir-Blodgett (LB) technique. The thin films were characterized by scanning electron microscopy (SEM), fluorescence spectroscopy, and UV-vis spectroscopy. ©The Electrochemical Society.

关键词： Cadmium compounds

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Achieving compelling student comprehension of complex information structures for both on-site and on-line courses

Achieving compelling student comprehension of complex inform...

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2008 ASEE Annual Conference and Exposition

作者： Uhlig, Ronald Farahani, Alireza Viswanathan, Shekar Evans, Howard Sotelo, Mark National University Department of Computer Science and Information Systems School of Engineering and Technology National University Wireless Communications for the Master ot Science in Wireless Communications Program International Telecommunications Academy School of Engineering and Technology Department of Applied Engineering Lead Faculty for Engineering Management and Homeland Security and Safety Engineering Academic Computing for National University

Teaching engineering and technology subjects involves conveying understanding of abstract information structures and processes such as complex telecommunications protocols, complex mathematical concepts, and data structures. These are multidimensional and can be difficult to grasp quickly. Supported by a Hewlett-Packard (HP) Technology for Teaching grant, the School of engineering and Technology at National University has embarked on a project to enable students to grasp these complex concepts more quickly and easily, using continuous dialog among students and instructors as the structures are first introduced and then examined from multiple perspectives through real-time interaction among students, small groups, and instructors. HP Wireless Tablet PCs are used to discuss and experiment with diagrams and processes in realtime. This allows combining lectures and problem-solving sessions into a single class session. Our hypothesis is that: 1) an in-depth learning of theory is accomplished, and 2) student engagement is enhanced. Presentation of theory by the instructor is integrated with application while the theory is still in the student's short-term memory. Students no longer have to wait for a separate session such as a recitation session to apply the concepts. This approach often takes less time. In addition to accelerating the learning process, expert instructors find this approach more rewarding as students grasp new concepts more quickly. Analysis of data captured from both students and instructors are presented to support our hypotheses, and our results are compared with similar research carried out by other universities. In addition, the level of interaction enabled by the use of HP Tablets in on-line classes is discussed. The best teaching tools available in existing on-line teaching platforms are compared with the additional tools available in on-site courses when every student has a wireless Tablet PC and specific recommendations are made to on-line teachi

关键词： Students

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Convex analysis for separation of functional patterns in DCE-MRI: A longitudinal study to antiangiogenic therapy

Convex analysis for separation of functional patterns in DCE...

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IEEE Workshop on Machine Learning for Signal Processing

作者： Tsung-Han Chan Li Chen Peter L. Choyke Chong-Yung Chi Yue Wang Department of Electrical and Computer Engineering Virginia Polytechnic Institute and State University Arlington VA USA Institute of Communications Engineering and Department of Electrical Engineering National Tsing Hua University Hsinchu Taiwan Molecular Imaging Program National Cancer Institute National Institutes of Health DHHS Bethesda MD USA

Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) can characterize vascular heterogeneity, and has potential utility in assessment of the efficacy of angiogenesis inhibitors in cancer treatment. Due to the heterogeneous nature of tumor microvasculature, the measured signals can be represented as the mixture of the permeability images corresponding to different perfusion rates. We recently reported a hybrid convex analysis of mixture framework for unmixing of non-negative yet dependent angiogenic permeability distributions (APDs) and perfusion time activity curves (TACs). In our last work, we presented an underlying theory to infer the concept that the TACs can be identified by finding the lateral edges of an observation-constructed convex pyramid when the well-grounded points exist for all APDs. For fulfilling this concept, a hybrid method including non-negative clustered component analysis, convex analysis, and least-squares fitting with non-negativity constraints was developed. In this paper, we use computer simulations to validate the performance of our reported framework, and further apply it to three sets of real DCE-MRI data, before and during the treatment period, for assessing the response to antiangiogenic therapy. The experimental results are not only surprisingly meaningful in biology and clinic, but also capable of reflecting the efficacy of angiogenesis inhibitors in cancer treatment.

关键词： Pattern analysis Medical treatment Magnetic resonance imaging Permeability Cancer Pixel Image analysis Inhibitors Independent component analysis Source separation

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Performance Comparison of Differential and Non-Differential Synchronous Downlink MC-CDMA Systems with Random Spreading

Performance Comparison of Differential and Non-Differential ...

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第三届IEEE无线通讯、网络技术暨移动计算国际会议

作者： M. A. Mangoud M. Abou El-Nasr Heba A. Shaban Department of Computer Engineering Department of Electronics and Communications Arab Academy for Sci Bradley Department of Electrical and Computer Engineering (VT-MENA Program) - AAST Virginia Polytech

The BER performances of differential and nondifferential synchronous downlink multi-carrier code division multiple access (MC-CDMA) systems that employ random spreading are studied and compared using Standard Gaussian Approximation (SGA) in AWGN channel. Furthermore, Monte-Carlo simulations were carried out to compare the BER performances of these systems in AWGN and in frequency selective Rayleigh fading channels considering a various number of interferers in the system. Various modulation schemes were considered namely, BPSK, QPSK, OQPSK, DBPSK, and DQPSK modulation schemes.

关键词： Downlink Multicarrier code division multiple access Bit error rate Code standards Gaussian approximation AWGN channels Frequency Fading Binary phase shift keying Quadrature phase shift keying

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Speech Act Classification Based on Individual Statistical Models in a Multi-Domain

Speech Act Classification Based on Individual Statistical Mo...

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IEEE International Workshop on Robot and Human Communication (ROMAN)

作者： Sangwoo kang Donghyun Kim Harksoo Kim Jungyun Seo Department of Computer Science Sogang University South Korea Program of Computer & Communications Engineering Kangwon National University South Korea Department of Computer Science & Interdisciplinary Program of Integrated BioTechnology Sogang University South Korea

Speech act classification is an essential part of a dialogue system because it is very important to catch user's intention. The previous approaches on speech act classification were focused on obtaining high performances in a single-domain, but they did not deal with a feature interference problem that frequently rises in a multi-domain. In this paper, we propose a two-step system for speech act classification in a multi-domain. In a first step, the proposed system detects a dialogue domain associated with user's utterance. In the second step, the proposed system determines the speech act of his/her utterance based on the statistical information of the detected domain. Owing to this architecture, the proposed system show ed higher precision of 5.5% than the baseline system based on the mixed statistical information.

关键词： Speech processing Electronic mail Statistical analysis computer science Interference Feature extraction Human robot interaction Biotechnology Entropy Hidden Markov models

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Integrating teaching abroad into an international student exchange program

Integrating teaching abroad into an international student ex...

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114th Annual ASEE Conference and Exposition, 2007

作者： Mossbrucker, Joerg Williams, Stephen Chandler, Edward Petersen, Owe Dahms, Holger Thiedke, Jens Milwaukee School of Engineering United States United States United States L-31 Communications Technical Staff AT and T Bell Laboratories United States IEEE ABET EAC Program Lübeck University of Applied Sciences Germany Department of Electrical Engineering Lübeck University of Applied Sciences Germany Lübeck University of Applied Sciences Lübeck Germany Department of Electrical Engineering and Computer Science Milwaukee School of Engineering United States

The electrical engineering program at the Milwaukee School of engineering (MSOE) has integrated a bilateral faculty teaching component into its international student exchange program. Considerable flexibility was needed to adjust to faculty availability and the major differences in academic calendars between the two institutions. Specifically, MSOE is a private institution on a quarter system and its partner university is the Lübeck University of Applied Sciences in Lübeck, Germany which utilizes the semester system and is a state university. Among the problems that needed to be overcome is that the semester versus quarter systems simply didn't align and neither institution has the resources to allow faculty absences for an entire academic year. At the Lübeck University of Applied Sciences the MSOE faculty generally teach a short intensive 2 week course at the end of the spring semester. An appropriate number of credits and associated grade are given and entered on both university transcripts. The Lübeck university faculty visit MSOE in the fall quarter to participate in the project defense of their own students who perform their Diplom Arbeit (senior thesis project) at a company generally in the Milwaukee region. During the visit the Lübeck faculty also provide a series of special topic lectures in various courses depending on the expertise of the faculty member. The benefits of the faculty exchange are many. Not just does the experience foster a stronger bond to the partner abroad, but the presence of the faculty serves to assure the students that the home institution is paying attention to their welfare and academic progress. The most essential thing we have come to believe is that while good academics are essential to a program, it is the relationships between the people involved in the program that determines a truly successful international program. The faculty exchange aspect has become a lynchpin of our exchange program. © American Society for engineering Ed

关键词： Students

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MARKOV DECISION PROCESSES WITH UNCERTAIN TRANSITION RATES: SENSITIVITY AND MAX HYPHEN MIN CONTROL

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Asian Journal of Control 2008年第2期6卷

作者： Suresh Kalyanasundaram Edwin K. P. Chong Ness B. Shroff Motorola India Electronics Limited No. 66/1 Plot 5 Bagmane Techpark C. V. Raman Nagar Post Bangalore 560 093 India. Department of Electrical and Computer Engineering Colorado State University Fort Collins CO 80523-1373 USA. Professor Edwin K. P. Chong received the B.E.(Hons.) degree with First Class Honors from the University of Adelaide South Australia in 1987 graduating top of his class and the M.A. and Ph.D. degrees in 1989 and 1991 respectively both from Princeton University where he held an IBM Fellowship. He joined the School of Electrical and Computer Engineering at Purdue University in 1991 where he was named a University Faculty Scholar in 1999 and promoted to Full Professor in 2001. Since August 2001 he has been a Professor of Electrical and Computer Engineering and Professor of Mathematics at Colorado State University. His current interests are in communication networks and optimization methods. He coauthored the best-selling book An Introduction to Optimization 2nd Edition Wiley-Interscience 2001. He received the NSF CAREER Award in 1995 and the ASEE Frederick Emmons Terman Award in 1998. He coauthored a paper that was awarded Best Paper in the journal Computer Networks 2003. Professor Chong is a Fellow of the IEEE. He was founding chairman of the IEEE Control Systems Society Technical Committee on Discrete Event Systems and until recently served as an IEEE Control Systems Society Distinguished Lecturer. He has been on the editorial board of the IEEE Transactions on Automatic Control. He is currently on the editorial board of the journal Computer Networks. He has also served on the organizing committees of several international conferences. He has been on the program committees for the IEEE Conference on Decision and Control the American Control Conference the IEEE International Symposium on Intelligent Control IEEE Symposium on Computers and Communications and the IEEE Global Telecommunications Conference. He has also served in the executive committees for the IEEE Co

Solution techniques for Markov decision problems rely on exact knowledge of the transition rates, which may be difficult or impossible to obtain. In this paper, we consider Markov decision problems with uncertain transition rates represented as compact sets. We first consider the problem of sensitivity analysis where the aim is to quantify the range of uncertainty of the average per-unit-time reward given the range of uncertainty of the transition rates. We then develop solution techniques for the problem of obtaining the max-min optimal policy, which maximizes the worst-case average per-unit-time reward. In each of these problems, we distinguish between systems that can have their transition rates chosen independently and those where the transition rates depend on each other. Our solution techniques are applicable to Markov decision processes with fixed but unknown transition rates and to those with time-varying transition rates.

关键词： Markov decision processes sensitivity max-min control call admission control policy iteration

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