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San Jose State University

Series

2005

Articles 1 - 16 of 16

Full-Text Articles in Engineering

Loss Aware Rate Allocations In H.263 Coded Video Transmissions, Xiao Su, Benjamin Wah Dec 2005

Loss Aware Rate Allocations In H.263 Coded Video Transmissions, Xiao Su, Benjamin Wah

Faculty Publications

For packet video, information loss and bandwidth limitation are two factors that affect video playback quality. Traditional rate allocation approaches have focused on optimizing video quality under bandwidth constraint alone. However, in the best-effort Internet, packets carrying video data are susceptible to losses, which need to be reconstructed at the receiver side. In this paper, we propose loss aware rate allocations in both group-of-block (GOB) level and macroblock level, given that certain packets are lost during transmissions and reconstructed using simple interpolation methods at the receiver side. Experimental results show that our proposed algorithms can produce videos of higher quality …

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The Igipi Ontological Framework: Integrating Gene Interactions With Protein Interactions, Bill Andreopoulos, Aijun An, Xiangji Huang Oct 2005

The Igipi Ontological Framework: Integrating Gene Interactions With Protein Interactions, Bill Andreopoulos, Aijun An, Xiangji Huang

Faculty Publications, Computer Science

No abstract provided.

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Ontologies In Web Personalization, Magdalini Eirinaki, Michalis Vazirgiannis Oct 2005

Ontologies In Web Personalization, Magdalini Eirinaki, Michalis Vazirgiannis

Faculty Publications

No abstract provided.

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A Global Regulatory Role Of Gluconeogenic Genes In Escherichia Coli Revealed By Transcriptome Network Analysis, Katy Kao, Linh Tran, James Liao Aug 2005

A Global Regulatory Role Of Gluconeogenic Genes In Escherichia Coli Revealed By Transcriptome Network Analysis, Katy Kao, Linh Tran, James Liao

Faculty Publications

In bacterial adaptation to the dynamic environment, metabolic genes are typically thought to be the executors, whereas global transcription regulators are regarded as the decision makers. Although the feedback from metabolic consequence is believed to be important, much less is understood. This work demonstrates that the gluconeogenic genes in Escherichia coli, ppsA, sfcA, and maeB, provide a feedback loop to the global regulator, cAMP receptor protein (CRP), in carbon source transition. Disruption of one of the gluconeogenic pathways has no phenotype in balanced growth, but causes a significant delay in the diauxic transition from glucose to acetate. To investigate the …

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Optimizing Transmission Time Of Scalable Coded Images In Peer-To-Peer Networks, Xiao Su, Rod Fatoohi, Tao Wang Aug 2005

Optimizing Transmission Time Of Scalable Coded Images In Peer-To-Peer Networks, Xiao Su, Rod Fatoohi, Tao Wang

Faculty Publications

In this paper, we study how to optimize image transmission time in peer-to-peer networks by considering the property of bitstreams generated by image coding algorithms. Images can be either scalable coded or nonscalable coded. Since transmission of nonscalable coded images is well understood, we focus on the transmission of scalable coded images in this paper.Because scalable coding embeds lower bit-rate bitstreams into higher bit-rate bitstreams, there exists a many-to-one relationship between supplying and requesting peers. When a requesting peer asks for an image coded in a particular bit rate, multiple peers with the same image but coded in different bit …

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How To Start A University Business Plan Competition: The Experience Of San Jose State University, Michael Solt, Asbjorn Osland, Anuradha Basu Jun 2005

How To Start A University Business Plan Competition: The Experience Of San Jose State University, Michael Solt, Asbjorn Osland, Anuradha Basu

Faculty Publications

San Jose State University’s Silicon Valley Center for Entrepreneurship has hosted a business plan competition for the last two academic years. The purpose of the Silicon Valley Business Plan Competition (SVBPC) is to stimulate interest in entrepreneurship among students and help to create new start-ups. The winners have typically been MBA students with an engineering background. This paper documents the process of planning and implementing the SVBPC as it has evolved at San Jose State University (SJSU), the resources required, and the key challenges encountered in organizing this annual event and widening participation in the competition. The paper reports on …

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San Jose State University Based Incubators: Loosely Coupled Elements In Silicon Valley’S Entrepreneurial System, Asbjorn Osland, Burton Dean Jun 2005

San Jose State University Based Incubators: Loosely Coupled Elements In Silicon Valley’S Entrepreneurial System, Asbjorn Osland, Burton Dean

Faculty Publications

The San Jose Redevelopment Agency (RDA) fostered and continues to nurture incubators. In partnership with the RDA, San Jose State University (SJSU), through its Foundation, operates four fairly autonomous loosely coupled university based incubators (UBIs). Their primary mission is to develop start-ups. They also provide excellent learning opportunities for students. What they have not done is commercialize university or faculty intellectual property. The incubator directors are experienced business people who have the business acumen to nurture start-ups successfully, which they have done. The RDA, SJSU, the UBIs, and the incubator directors are all part of the entrepreneurial system that characterizes …

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A Shift In Teaching Methodology: From Instructor Led To Student Driven Multimedia Instruction, Patricia Backer Jun 2005

A Shift In Teaching Methodology: From Instructor Led To Student Driven Multimedia Instruction, Patricia Backer

Faculty Publications

Multimedia can be a powerful tool in exploring the nature of the world around us, including its technological systems. This paper describes the design, development, and evaluation of self- paced multimedia and web-based modules that are used in an advanced General Education (GE) course in the College of Engineering at San José State University. The design and development cycle of these modules began in 1994 and spanned nine years. The General Education course, Technology and Civilization (TECH 198), is designed to introduce students to the realm of history and usage of technology in society and to increase their awareness of …

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Introduction To Product Design And Innovation: A Cross Disciplinary Mini Curriculum, Patricia Backer, Seth Bates Jun 2005

Introduction To Product Design And Innovation: A Cross Disciplinary Mini Curriculum, Patricia Backer, Seth Bates

Faculty Publications

For the past two years, faculty at San Jose State University (SJSU) have implemented a three- semester minicurriculum in Product Design and Manufacturing. The project follows the Project- Based Learning (PBL) model and is central to the Certificate Program in Product Design in the Mechanical Engineering Department, the Manufacturing Systems concentration in the Department of Aviation and Technology, and the Industrial Design Program in the School of Art and Design. Students in the three courses in the minicurriculum face design challenges while being instructed about the constraints of manufacturability. In each course, students develop three to four products. All products …

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Integration Of Computer-Based Electronics Laboratory In A Control Systems Course, Julio Garcia, Patricia Backer Jun 2005

Integration Of Computer-Based Electronics Laboratory In A Control Systems Course, Julio Garcia, Patricia Backer

Faculty Publications

The goal of this project is to adapt the work of other researchers to improve the delivery of electronics lecture and laboratory content in the Electronics & Computer Technology (ECT) area of the BS in Industrial Technology at San Jose State University. There are several other demographic factors that serve to make the delivery of instruction challenging for the department. Approximately 70% of ECT students work at least 30 hours a week. SJSU also has a diverse student population with 62% of all undergraduates identified as having non-White ethnicity. A higher percentage (69%) of the undergraduate students in the BSIT …

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Development Of Project-Based Introductory To Materials Engineering Modules, Stacy Gleixner, Elliot Douglas, Olivia Graeve, Hilary Lackritz, Laura Demsetz, Amy Moll Jun 2005

Development Of Project-Based Introductory To Materials Engineering Modules, Stacy Gleixner, Elliot Douglas, Olivia Graeve, Hilary Lackritz, Laura Demsetz, Amy Moll

Faculty Publications

This paper will discuss the progress of curriculum development under an NSF, CCLI-EMD sponsored work, “Development of Project-Based Introductory to Materials Engineering Modules” (DUE # #0341633). A multi-university team of faculty are developing six lecture and three laboratory modules for use in Introductory to Materials courses. This course is required by most engineering programs in the U.S., with an annual enrollment of 50,000 students. This freshman/ sophomore class is an ideal place to excite students about their engineering majors and expose them to engineering design experiences. PRIME Modules, Project Based Resources for Introduction to Materials Engineering, are being developed that …

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The Grain Size And Microstructure Of Jet-Electroplated Damascene Copper Films, Stacy H. Gleixner, Andrew Tzanavaras, Gregory Young Jan 2005

The Grain Size And Microstructure Of Jet-Electroplated Damascene Copper Films, Stacy H. Gleixner, Andrew Tzanavaras, Gregory Young

Faculty Publications

Electroplated damascene copper is rapidly replacing aluminum-copper alloys for on-chip interconnect metallization in advanced ultralarge scale integrated (ULSI) semiconductor devices. In addition to a high degree of (111) crystallographic texture, large defect-free grains are desired to enhance the performance and reliability of copper interconnects in such devices. The brightening additive level and dc current density of electroplating baths are two parameters that affect the process gap-filling capability and the degree of additive incorporation in these copper films. Additive incorporation can inhibit grain growth during the room-temperature recrystallization process and therefore affect the final grain size in electroplated copper films. This …

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Incorporating The Impact Of Engineering Solutions On Society Into Technical Engineering Courses, Nicole Dejong-Okamoto, Jinny Rhee, Nikos J. Mourtos Jan 2005

Incorporating The Impact Of Engineering Solutions On Society Into Technical Engineering Courses, Nicole Dejong-Okamoto, Jinny Rhee, Nikos J. Mourtos

Faculty Publications

In the era of market and workforce globalisation, engineers need a solid understanding of the impact that their products have locally, as well as globally. This is why the US Accreditation Board for Engineering and Technology (ABET) recently put a new spin on this requirement in engineering education. Specifically, outcome 3h of Engineering Criteria 2000 states that engineering graduates must have the broad education to understand the impact of engineering solutions in a global/ societal context. This outcome may be one of the most difficult to achieve, since it requires not only a strong technical understanding, but also an informed …

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Modulation Identification And Carrier Recovery System For Adaptive Modulation In Satellite Communications, Kenta Umebayashi, Robert H. Morelos-Zaragoza, Ryuji Kohno Jan 2005

Modulation Identification And Carrier Recovery System For Adaptive Modulation In Satellite Communications, Kenta Umebayashi, Robert H. Morelos-Zaragoza, Ryuji Kohno

Faculty Publications

We introduce the modulation identification technique implementing the multimode phase locked loop (PLL) in the satellite communication using adaptive modulation scheme which is a countermeasure against the rain attenuation. In the multimode PLL, phase lock detectors (PLDs) are used for not only phase lock, but also modulation identification. We present the sub-optimized design of the PLDs for modulation identification with respect to the throughput and show the validity of sub-optimization. In addition, by the comparison between the multimode PLL and conventional scheme in ISDB-S, we present the effectivity of the multimode PLL.

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A Suboptimal Receiver With Turbo Block Coding For Ultra-Wideband Communications, Robert H. Morelos-Zaragoza, Timothy Becker, Sim Aquino Jan 2005

A Suboptimal Receiver With Turbo Block Coding For Ultra-Wideband Communications, Robert H. Morelos-Zaragoza, Timothy Becker, Sim Aquino

Faculty Publications

In this paper, the performance of adaptive equalization and turbo product coding is investigated for pulse-based UWB communications in short-range indoor environments. The sensitivity of adaptive LMS linear and nonlinear (decision-feedback) equalizers with respect to the number of training symbols and number of taps is considered. To reduce the error performance variation with respect to changing channel conditions, a turbo product code (TPC) with two component (31,26,3) Hamming codes is proposed. We report simulation results showing that channel coding not only improves error performance, but also reduces significantly the sensitivity of UWB systems in short-range indoor wireless communications.

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Delay-Constrained Transmission Of Fine Scalable Coded Content Over P2p Networks, Xiao Su, Yi Shang, Tao Wang, Yuqing Mai Jan 2005

Delay-Constrained Transmission Of Fine Scalable Coded Content Over P2p Networks, Xiao Su, Yi Shang, Tao Wang, Yuqing Mai

Faculty Publications

Images or videos are generally coded before transmission, and they can be either non-scalable coded or scalable coded, which can be further classified into fine-scalable coded and coarse-scalable coded. In this paper, we focus on delivery of fine-scalable coded content. The objective of our work is to design algorithms to optimize the quality of fine-scalable coded images or videos on peer-to-peer networks when a requesting peer is delay-sensitive and has to display content within a certain delay bound. Fine-scalable coding has two properties: (1) it embeds lower bit-rate bitstreams into higher bit-rate bitstreams; and (2) its coding quality increases with …

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