Engineering Commons^™

Oo Or Not Oo: When Object-Oriented Is Better. Qualitative Analysis And Application To Satellite Image Processing, Ann Q. Gates, Leticia Sifuentes, Scott A. Starks

Departmental Technical Reports (CS)

No abstract provided.

Strong Negation: Its Relation To Intervals And Its Use In Expert Systems, Scott A. Starks, Vladik Kreinovich, Hung T. Nguyen, Hoang Phuong Nguyen, Mirko Navara

Departmental Technical Reports (CS)

No abstract provided.

Complexity Of Collective Decision Making Explained By Neural Network Universal Approximation Theorem, Raul A. Trejo, Vladik Kreinovich

Departmental Technical Reports (CS)

No abstract provided.

Interval Approach To Non-Destructive Testing Of Aerospace Structures And To Mammography, Keith Worden, Roberto A. Osegueda, Carlos M. Ferregut, Soheil Nazarian, Eulalio Rodriguez, Debra L. George, Mary J. George, Vladik Kreinovich, Olga Kosheleva, Sergio Cabrera

Departmental Technical Reports (CS)

No abstract provided.

Genetic Algorithm Development For Multiobjective Optimization Of Structures, Franklin Y. Cheng, Dan Li

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Genetic algorithms (GAs) have the characteristic of maintaing a population of solutions and can search in a parallel manner for many nondominated solutions. These features coincide with the requirement of seeking a Pareto optimal set in a multiobjective (multicriteria, vector) optimization problem. The retionale for multiobjective optimization via GAs is that at each generation, the fitness of each individual is defined according to its nondominated property. Because nondominated individuals are assigned the highest fitness values, the convergence of a population will go th the nondominated zone: the Pareto optimal set. Based on this concept, a Pareto, GA, whose goal is …

Design And Design Centers In Engineering Education, Clive L. Dym

All HMC Faculty Publications and Research

This paper is intended to be the opening salvo of the workshop, Computing Futures in Engineering Design (Dym, 1997). Thus, I want to take this privileged moment to ask you to think with me about the role of design in engineering. In particular, I want to reflect upon how design is articulated and how design is taught; about the role of design in engineering education and in the practice of engineering; and about the role that could be played locally and, perhaps, nationally by a center devoted to design education. Because I teach here at Harvey Mudd College (HMC), …

Time Series Analysis Of Ozone Data, Delparde Raleigh Guthrey

Theses Digitization Project

No abstract provided.

Compilation Techniques For Out-Of-Core Parallel Computations, Mahmut Kandemir, Alok Choudhary, J. Ramanujam, Rajesh Bordawekar

Electrical Engineering and Computer Science - All Scholarship

The difficulty of handling out-of-core data limits the performance of supercomputers as well as the potential of the parallel machines. Since writing an efficient out-of-core version of a program is a difficult task and virtual memory systems do not perform well on scientific computations, we believe that there is a clear need for compiler directed explicit I/O approach for out-of-core computations. In this paper, we first present an out-of-core compilation strategy based on a disk storage abstraction. Then we offer a compiler algorithm to optimize locality of disk accesses in out-of core codes by choosing a good combination of file …

Enhancing Spatial Locality Via Data Layout Optimizations, Mahmut Kandemir, Alok Choudhary, J. Ramanujam, N. Shenoy

Electrical Engineering and Computer Science - All Scholarship

This paper aims to improve locality of references by suitably choosing array layouts. We use a new definition of spatial reuse vectors that takes into account memory layout of arrays. This capability creates two opportunities. First, it allows us to develop an array restructuring framework based on a combination of hyperplane theory and reuse vectors. Second, it allows us to observe the effect of different array layout optimizations on spatial reuse vectors. Since the iteration space based locality optimizations also change the spatial reuse vectors, our approach allows us to compare the iteration-space based and data-space based approaches in terms …

Student Database Access From The Web, Prashanthi Sundaram

Theses Digitization Project

This project, Database Access through the Web (DAW), implements a database to store academic and general information of graduate students in the Department of Computer Science, CSUSB and provides access to the database from the web. The motivation of the project comes from needs of the Graduate Coordinator, professors and department staff to access through the Internet student information concurrently.

The Rmt (Recursive Multi-Threaded) Tool: A Computer Aided Software Engineeering Tool For Monitoring And Predicting Software Development Progress, Chungping Lin

Theses Digitization Project

No abstract provided.

Surveygen: A Web-Based Survey Editor, Kwon Soo Han

Theses Digitization Project

No abstract provided.

A Web-Based Universal Encyclopedia/Dictionary, Francis Hyeongwoo Lee

Theses Digitization Project

No abstract provided.

Stability And Performance Of Feedback Control Systems With Time Delays, M. S. Ali, Z. K. Hou, Mohammad N. Noori

Office of the Dean (CENG) Scholarship

This paper investigates the time delay effects on the stability and performance of active feedback control systems for engineering structures. A computer algorithm is developed for stability analysis of a SDOF system with unequal delay time pair in the velocity and displacement feedback loops. It is found that there may exist multiple stable regions in the plane of the time delay pair, which contain time delays greater than the maximum allowable values obtained by previous studies. The size, shape and location of these stable and unstable regions depend on the system parameters and the feedback control gains. For systems with …

Driving Simulators: Are They Valid Test Environments For Its Development?, Robert A. Glaser

Link Foundation Modeling, Simulation and Training Fellowship Reports

Driving simulators are increasingly being used to test the Intelligent Transportation Systems (ITS) that interface_ with the driver in the vehicle. Examples of such technologies include autonomous, on-board-sensors (Huguenin, 1993) which potentially can prevent many of the rear-end crashes that lead to fatalities or serious injuries (Knipling, Mironer, Hendricks, Tijerin, Everson, Allen and Wilson, 1993). A study of the simulator image-factors which affect the detection of rear-end-collisions and, more generally, of motion is described below. The study was undertaken on the University of Massachusetts driving simulator located at the Amherst campus.

Optimizing Multiagent, Multi-Injected Swell Modifier, Marshall B. Addison, Thomas M. Petry

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Interactions of expansive clay soils with transportation facilities have caused billions of dollars of damage. In the process of determining agents and methodologies to overcome expansive clay behavior, multiple injections of chemical agents into the subgrade to modify clay behavior are most promising. A study was conducted to optimize a potassium-rich solution of four parts. The modifying solution has been injected into expansive clay subgrades with success since the early 1970s. A laboratory methodology was developed to inject specimens multiple times and to conduct swell tests. Screening tests were conducted to evaluate linear effects that each of the four constituents …

Fighting Back In Hard Times: The 1990 Strike In Waterford Crystal, Eddie Conlon

Conference papers

No abstract provided.

Alps: A Logic For Program Synthesis (Motivated By Fuzzy Logic), Daniel E. Cooke, Vladik Kreinovich, Scott A. Starks

Departmental Technical Reports (CS)

One of the typical problems in engineering and scientific applications is as follows: we know the values x1,...,xn of some quantities, we are interested in the values of some other quantities y1,...,ym, and we know the relationships between xi, yj, and, maybe, some auxiliary physical quantities z1,...,zk. For example, we may know an algorithm to compute y2 from x_1, x3, and y1; we may also know an equation F(x1,x2,y1)=0 that relates these values, etc. The question is: can we compute the values of yj, and, if we can, how to do it?

At first glance, this is a problem of …

Test 1816: New Holland 9682 Quadrasync Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Using Transaction Log Analysis To Improve Opac Retrieval Results, Deborah Blecic, Nirmala Bangalore, Josephine Dorsch, Cynthia Henderson, Melissa Koenig, Ann Weller

Staff Publications - University Libraries

This OPAC transaction log analysis study compared data derived two sets of logs within a six-month period. Analysis of the first set of data revealed that users experienced difficulty with basic searching techniques. The OPAC introductory screens were simplified and clarified to help users improve search success rates. The second set of data, analyzed after screen changes had been made, showed statistically significant differences in search results. Regular monitoring of OPACs through transaction log analysis can lead to improved retrieval when changes are made in response to an analysis of user search patterns.

Fm 34-54, Technical Intelligence, 30 January 1998, Robert Bolin , Depositor

United States Department of Defense Military Intelligence

This manual defines and describes the technical intelligence mission. It names the key technical intelligence organizations involved at the national level and their interrelationships and responsibilities.

The manual describes in detail the technical intelligence organizations and operations in a US command in the field. It discusses at length the responsibilities on the key staff sections in the command.

It has extensive appendices explaining forms and procedures used by forces in the field. It has an excellent list of acronyms and glossary.

Comment by the depositor

A clear understanding of the evolution of technical intelligence may not be needed by the …

Chemical Kinetic Modeling Of A Methane Opposed-Flow Diffusion Flame And Comparison To Experiments, N. M. Marinov, W. J. Pitz, C. K. Westbrook, Andrew E. Lutz, A. M. Vincitore, S. M. Senkan

All Faculty Presentations - School of Engineering and Computer Science

The chemical structure of an opposed-flow, methane diffusion flame is studied using a chemical kinetic model and the results are compared with experimental measurements. The chemical kinetic paths leading to aromatics and polycyclic aromatics hydrocarbons (PAHs) in the diffusion flame are identified. These paths all involve resonantly stabilized radicals that include propargyl, allyl, cyclopentadienyl, and benzyl radicals. The modeling results show reasonable agreement with the experimental measurements for the large hydrocarbon aliphatic compounds, aromatics, two-ring PAHs, and three-ring PAHs, but not for four-ring PAHs. The benzene was predicted to be formed primarily by the reaction sequence of Allyl + Propargyl …

Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 14, Number 1, January 1998, College Of Engineering And Computer Science, Wright State University

BITs and PCs Newsletter

A fourteen page newsletter created by the Wright State University College of Engineering and Computer Science that addresses the current affairs of the college.

Binder Containing Plant Protein And Densified Refuse Fuel Cubes Made Using Same And Methods Of Making Them, Jerry D. Eastin, David Jones, Darin Dux, Harold Earl Egger

Department of Agricultural and Biological Systems Engineering: Faculty Publications

To form a binder from naturally occurring products or a fuel brick or pellet using the binder without extraction or purification steps, the binder utilizes proteins from the germ or endosperm of cereal grasses or from the seed of buckwheat, oil seed plants, Amaranthus or leguminous plants or from leaves or from grain stillage. The protein has a thermoplastic microstructure with linear polymers of molecular weight of at least 2,000 linked with peptide linkages of at least 50 in number. The binder is mixed with waste such as municipal waste without further processing and processed in a pelleting machine.

Battery-Operated Atomic Force Microscope, Burford J. Furman, J. Christman, M. Kearny, F. Wojcik, M. Tortonese

Faculty Publications, Mechanical Engineering

The design of a battery-operated atomic force microscope (AFM) using a piezoresistive cantilever is described. The AFM is designed so that all power to drive the scanning tube and detection electronics comes from a self-contained battery. The prototype AFM uses a 6 V, Ni–Cd, camcorder battery, however, any battery that supplies between 6 and 12 V may be used. Scanner control and data acquisition are implemented using commercially available software running on an external computer. The prototype AFM achieves a scan area of 53 by 53 μm, consumes 1.8 W of power, and can scan continuously for about 7 h …

Santa Clara Magazine, Volume 39 Number 4, Winter 1998, Santa Clara University

Santa Clara Magazine

10 - INSIDE OUT Francisco Jimenez, chairman of the University's Modern Languages and Literatures Department, recalls his grade-school days and immigrant family.

14 - FROM HALLOWED TO HIP Connie Hinckley, East Bay writer, examines the media's many-faceted portrayals of the priesthood, especially the controversial Father Ray of Nothing Sacred.

20 - SANTA CLARA'S ADOBE LEGACY Susan Vogel, San Francisco author and publisher, traces the history of the Adobe Lodge and describes its many roles in the life of the University.

26 - UNCOVERING THE REGION'S RICH PAST As the University clears land for new buildings, SCU archeologists and Native American …

The Study, Design, And Implementation Of Data Mart Functions In Windows Environments, Shenning Wen

Theses Digitization Project

No abstract provided.

Nebraska Summary 271: Agco Rt145 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

On Block-Coded Modulation Using Unequal Error Protection Codes Over Rayleigh-Fading Channels, Robert H. Morelos-Zaragoza, Tadao Kasami, Shu Lin, Hideki Imai

Faculty Publications

This paper considers block-coded 8-phase-shift-keying (PSK) modulations for the unequal error protection (UEP) of information transmitted over Rayleigh-fading channels. Both conventional linear block codes and linear UEP (LUEP) codes are combined with a naturally labeled 8-PSK signal set, using the multilevel construction of Imai and Hirakawa (1977). Computer simulation results are presented showing that, over Rayleigh-fading channels, it is possible to improve the coding gain for the most significant bits with the use of binary LUEP codes as constituent codes, in comparison with using conventional binary linear codes alone.

Biogenic Iron Mineralization Accompanying The Dissimilatory Reduction Of Hydrous Ferric Oxide By A Groundwater Bacterium, James K. Fredrickson, John M. Zachara, David Kennedy, Hailang Dong, Tullis Onstott, Nancy Hinman, Shu-Mei Li

United States Department of Energy: Publications

Dissimilatory iron-reducing bacteria (DIRB) couple the oxidation of organic matter or H2 to the reduction of iron oxides. The factors controlling the rate and extent of these reduction reactions and the resulting solid phases are complex and poorly understood. Batch experiments were conducted with amorphous hydrous ferric oxide (HFO) and the DIRB Shewanella putrefaciens, strain CN32, in well-defined aqueous solutions to investigate the reduction of HFO and formation of biogenic Fe(II) minerals. Lactate-HFO solutions buffered with either bicarbonate or 1,4-piperazinediethanesulfonic acid (PIPES) containing various combinations of phosphate and anthraquinone-2,6-disulfonate (AQDS), were inoculated with S. putrefaciens CN32. AQDS, a humic …