Digital Commons Network^™

Defects And Site Occupancies In Nb-Cr-Ti C15 Laves Phase Alloys, P. G. Kotula, C. B. Carter, Katherine C. Chen, Dan J. Thoma, F. Chu, T. E. Mitchell

Materials Engineering

No abstract provided.

Selection Of Irrigation Methods For Agriculture: Drip/Micro Irrigation, Charles M. Burt

BioResource and Agricultural Engineering

The ASCE On-Farm Committee has recently completed a draft of a manual (Bliesner et al, 1998) on "Selection of Irrigation Methods for Agriculture." One of the chapters describes drip/micro irrigation methods. Numerous variations of drip/micro designs are discussed, along with advantages and disadvantages. This paper provides an overview of some aspects of that chapter.

Identification Of A Functional Homolog Of The Yeast Copper Homeostasis Gene Atx1 From Arabidopsis, Edward Himelblau, Helena Mria, Su-Ju Lin, Valeria Cizewski Culotta, Lola Penarrubia, Richard M. Amasino

Biological Sciences

A cDNA clone encoding a homolog of the yeast (Saccharomyces cerevisiae) gene Anti-oxidant 1 (ATX1) has been identified from Arabidopsis. This gene, referred to as Copper CHaperone (CCH), encodes a protein that is 36% identical to the amino acid sequence of ATX1 and has a 48-amino acid extension at the C-terminal end, which is absent from ATX1 homologs identified in animals. ATX1-deficient yeast (atx1) displayed a loss of high-affinity iron uptake. Expression of CCH in the atx1 strain restored high-affinity iron uptake, demonstrating that CCH is a functional homolog of ATX1 …

Electric Potential In The Classical Hall Effect: An Unusual Boundary-Value Problem, Matthew J. Moelter, James Evans, Greg Elliot, Martin Jackson

Physics

The classical Hall effect presents a surprisingly unusual and challenging problem in electrostatics, with boundary conditions that are not of Dirichlet, Neumann, or of mixed Dirichlet and Neumann type. These unusual boundary conditions create several difficulties not normally encountered in standard problems, and ultimately lead to expansion of the electric potential in a nonorthogonal basis set. We derive the boundary conditions for the potential in a rectangular geometry, construct a solution for the potential, and discuss the relation between this problem and problems of the standard mixed type. We also address a commonly encountered misconception about the current distribution.

Summer Mustang, July 30, 1998

Cal Poly Student Newspaper

Student newspaper of California Polytechnic State University, San Luis Obispo, CA.

Discovering Methodologies For Integrated Product Design, Cirrus Shakeri, David C. Brown, Mohammad N. Noori

Office of the Dean (CENG) Scholarship

The current methodologies for multi-disciplinary product design are based on compromising between different disciplines rather than integrating them. These methodologies do not use a systematic and holistic approach to the problem of multi-disciplinary design and thus are piecemeal rather than comprehensive. This paper presents a new approach to producing design methodologies for integration of the different disciplines in the design process. A multi-agent system has been developed that designs a 2-DOF robot arm by incorporating five proposed strategies for integration between disciplines. Design methodologies are extracted by tracking the system and generalizing the traces that are produced. The results show …

Summer Mustang, July 23, 1998

Cal Poly Student Newspaper

Student newspaper of California Polytechnic State University, San Luis Obispo, CA.

July 22, 1998 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.

Executive Committee - Meeting Minutes, 7/21/1998, Academic Senate

Academic Senate Minutes

No abstract provided.

Executive Committee - Agenda, 7/21/1998, Academic Senate

Academic Senate Agendas

No abstract provided.

Summer Mustang, July 9, 1998

Cal Poly Student Newspaper

Student newspaper of California Polytechnic State University, San Luis Obispo, CA.

July 8, 1998 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.

Summer Mustang, July 2, 1998

Cal Poly Student Newspaper

Student newspaper of California Polytechnic State University, San Luis Obispo, CA.

Information Storage Capacity Of Incompletely Connected Associative Memories, Holger Bosch, Franz J. Kurfess

Computer Science and Software Engineering

In this paper, the memory capacity of incompletely connected associative memories is investigated. First, the capacity is derived for memories with fixed parameters. Optimization of the parameters yields a maximum capacity between 0.53 and 0.69 for hetero-association and half of it for auto-association improving previously reported results. The maximum capacity grows with increasing connectivity of the memory and requires sparse input and output patterns. Further, parameters can be chosen in such a way that the information content per pattern asymptotically approaches 1 with growing size of the memory.

Drip/Micro Irrigation Survey For Delano-Earlimart Irrigation District, Charles M. Burt

BioResource and Agricultural Engineering

Delano-Earlimart ID (DEID) has kept informal statistics on the use of drip and micro-irrigation (drip/micro) within its boundaries for several years. These statistics showed that there has been only a slight increase in the acreage of these systems over the past 10 years. Because the rate and extent of conversion to drip/micro may influence the type of future water delivery service needed from DEID, DEID management is interested in knowing more about farmer perceptions regarding these newer irrigation methods.

DEID obtained a grant from USBR Mid-Pacific region to examine perceptions of its farmers regarding future conversions to drip and micro-irrigation. …

@Csc.Calpoly.Edu, Summer 1998, Computer Science And Software Engineering Department

Computer Science and Software Engineering Department Newsletter

No abstract provided.

Probing Electronic Radial Wave Packets Using Impulsive Momentum Retrieval, M. B. Campbell, Thomas J. Bensky, Robert R. Jones

Physics

Subpicosecond half-cycle pulses and a single-shot imaging detector have been used to monitor the evolution of electronic radial wave packets in calcium. The time-dependent momentum-space probability distribution is obtained using the impulsive momentum retrieval (IMR) method. The measured distributions are compared to the results of quantum and classical simulations allowing a comprehensive evaluation of the benefits and limitations of the IMR method.

Genetic Admixture And Gallbladder Disease In Mexican Americans, Marilyn Tseng, Robert C. Williams, Kurt R. Maurer, Moses S. Schanfield, William C. Knowler, James E. Everhart

Kinesiology and Public Health

Gallbladder disease is a common source of morbidity in the Mexican American population. Genetic heritage has been proposed as a possible contributor, but evidence for this is limited. Because gallbladder disease has been associated with Native American heritage, genetic admixture may serve as a useful proxy for genetic susceptibility to the disease in epidemiologic studies. The objective of our study was to examine thepossibility that gallbladder disease is associated with greater Native American admixture in Mexican Americans. This study used data from the Hispanic Health and Nutrition Examination Survey and was based on 1,145 Mexican Americans who underwent gallbladder ultrasonography …

A Probabilistic Approach To Some Of Euler's Number Theoretic Identities, Don Rawlings

Mathematics

Probabilistic proofs and interpretations are given for the q-binomial theorem, q-binomial series, two of Euler's fundamental partition identities, and for q-analogs of product expansions for the Riemann zeta and Euler phi functions. The underlying processes involve Bernoulli trials with variable probabilities. Also presented are several variations on the classical derangement problem inherent in the distributions considered.

The First Digit Phenomenon: A Century-Old Observation About An Unexpected Pattern In Many Numerical Tables Applies To The Stock Market, Census Statistics And Accounting Data, Theodore P. Hill

Research Scholars in Residence

No abstract provided.

Review Of The United States And Arms Control: The Challenge Of Leadership By Allan S. Krass, David W. Hafemeister

Physics

No abstract provided.

Promoting Excellence In Education With An Outstanding Student Instructor Award Program, Jennifer Kadlowec, Justin Shriver, Trevor S. Harding, Charles Choi

Materials Engineering

The ASEE Student Chapter at the University of Michigan in conjunction with the College of Engineering has developed and organized an annual Outstanding Student Instructor Award in recognition of excellence in engineering education. The award not only acknowledges the outstanding contributions of the individuals selected for the award, but also coincides with the ASEE’s goals of promoting excellence in engineering education and attracting new members. The paper outlines the planning procedures developed since the inception of the award in 1994 and provides suggestions and insights for other ASEE Student Chapters to create and organize such an award.

Summer Mustang, June 25, 1998

Cal Poly Student Newspaper

Student newspaper of California Polytechnic State University, San Luis Obispo, CA.

June 24, 1998 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.

Optimization Of Network Signal Timing, Xiao-Hua Yu, Allen R. Stubberud

Electrical Engineering

A typical urban traffic network is a complicated large-scale stochastic system which consists of many interconnected signalized traffic intersections. This paper develops a decentralized real-time adaptive control strategy for the traffic networks based on Markov decision theory. Computer simulation results of this new approach on a five intersection traffic network indicate significant improvement over the traditional fully actuated control algorithm.

Preliminary Development Of A Certification Protocol For Conventional Fireplaces, Paul L. Reitz, Harold M. Cota

Civil and Environmental Engineering

In order to attain and maintain federal and state air quality standards for particulate matter, some local agencies in California have adopted rules and regulations to control emissions from wood burning devices. Some of these rules restricted the use or installation of new masonry fireplaces. The purpose of this study was to begin development of a test protocol that would provide for consistent measurement of particulate emissions from conventional fireplaces and could be useful for compliance determinations or possible certification of a fireplace design or model. A modified California Air Resources Board Stationary Source Test Method 5 was used to …

Techniques For Modeling Hazardous Air Pollutant Emissions From Landfills, Robert J. Lang, Samuel A. Vigil, Henryk Melcer

Civil and Environmental Engineering

The Environmental Protection Agency’s Landfill Air Estimation Model (LAEEM), combined with either the AP-42 or CAA landfill emission factors, provide a basis to predict air emissions, including hazardous air pollutants (HAPs), from municipal solid waste landfills. This paper presents alternative approaches for estimating HAP emissions from landfills. These approaches include analytical solutions and estimation techniques that account for convection, diffusion, and biodegradation of HAPs. Results from the modeling of a prototypical landfill are used as the basis for discussion with respect to LAEEM results.

June 10, 1998 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.

As-506-98 Resolution On The Cal Poly Statement On Diversity, Diversity Task Force

Academic Senate Resolutions

Endorses The Cal Poly Statement on Diversity.

Academic Senate - Meeting Minutes, 6/9/1998, Academic Senate

Academic Senate Minutes

No abstract provided.