Engineering Commons^™

Automated Motion Synthesis For Virtual Choreography, Gazihan Alankus, A. Alphan Bayazit, O. Burchan Bayazit

All Computer Science and Engineering Research

In this paper, we present a technique to automati-cally synthesize dancing moves for arbitrary songs. Our current implementation is for virtual characters, but it is easy to use the same algorithms for entertainer robots, such as robotic dancers, which fits very well to this year’s conference theme. Our technique is based on analyzing a musical tune (can be a song or melody) and synthesizing a motion for the virtual character where the character’s movement synchronizes to the musical beats. In order to analyze beats of the tune, we developed a fast and novel algorithm. Our motion synthesis algorithm analyze library …

A Laboratory Course On Antenna Measurement, Samuel Parker, Dean Y. Arakaki

Electrical Engineering

This paper presents background information and experiment procedures for an antenna measurement laboratory course to be held in a new anechoic chamber at California Polytechnic State University. The lab consists of five experiments and one design project intended to give students practical experience with antenna measurement techniques and to creatively apply analytical skills to design, construct, and test antennas that meet given specifications. The experiments reinforce antenna principles including E-field polarization, antenna gain, radiation patterns, image theory, and frequency response.

In addition to the experiment procedures, this paper presents the design and characterization of Helical Beam (RHCP and LHCP) and …

Absorber Foam Characterization For Predicting Overall Anechoic Chamber Performance, Christopher R. Brito, Aloysius Aragon Lubiano, Newlyn Hui, Dean Y. Arakaki

Electrical Engineering

A new rectangular anechoic chamber (20’L x 10’W x 9’7”H) has been established at California Polytechnic State University (Cal Poly) through donations and financial support from industry and Cal Poly departments and programs. The chamber was designed and constructed by three graduate students as part of their thesis studies to explore and further their understanding of chamber design and antenna measurements. The chamber project has included RF absorber characterization, overall chamber performance assessment, and software development for the coordination of a positioner with a vector network analyzer.

This paper presents absorber characterization as a function of incidence angle and orientation …

Reflectivity Characterization And Identification Of Primary Reflection Path In Anechoic Chamber Analysis, Aloysius Aragon Lubiano, Christopher R. Brito, Newlyn Hui, Dean Y. Arakaki

Electrical Engineering

This paper presents an analysis of the reflectivity performance of the anechoic chamber. Measurements indicating the performance of the chamber-installed foam absorbers (described in a companion paper) are used to complete this analysis. This is followed by a comparison of the analysis results to chamber measurements taken in accordance with the free-space VSWR procedure [1]. Agreement between the analysis results and worst-case VSWR test measurements is within 1dB for a majority of reflection angles. In addition to chamber performance predictions, this paper describes a method of identifying primary reflection paths through interferometer calculations that compare all single bounce reflection path …

Integrated Optical Waveguides With Liquid Cores, Aaron R. Hawkins, John P. Barber, Dongliang Yin, D. W. Deamer, Holger Schmidt

Faculty Publications

We report the design, fabrication, and demonstration of single-mode integrated optical waveguides with liquid cores. The principle of the device is based on antiresonant reflecting optical (ARROW) waveguides with hollow cores. We describe design principles for waveguide loss optimization down to 0.1/cm. Using a fabrication process based on conventional silicon microfabrication and sacrificial core layers, waveguides of varying widths and lengths with volumes covering the pico- to nanoliter range were fabricated. We observe confined mode propagation, measure waveguide losses of 2.4/cm, and demonstrate that the waveguides possess tailorable wavelength selectivity. The potential for highly integrated, sensitive devices based on these …

Rare Earth-Aluminum Oxide Glasses For Optical Applications, Richard Weber, Jean A. Tangeman, Paul C. Nordine, Richard N. Scheunemann, Kirsten J. Hiera, Chandra S. Ray

Materials Science and Engineering Faculty Research & Creative Works

Glasses based on rare earth oxides and aluminum oxide with 0-20 mol% SiO₂ provide a combination of optical properties, mechanical and chemical stability, and process characteristics not available in other oxide materials. Properties of the glasses include: refractive index 1.7-1.8, low dispersion (Abbe number ∼40), high solubility of optically active dopants, homogeneous chemical composition, long fluorescence lifetimes at dopant concentrations up to 5 mol%, broad fluorescence bandwidth, and infra-red transmission to ≈5000nm. the glasses are hard, strong and resist chemical attack and they can be cast in sections 5-10mm thick. This paper briefly describes glass processing and presents bulk …

Systems Engineering Education Via Real Life – Hands On Projects, Robert J. Twiggs

Robert "Bob" Twiggs STEM Education Collection

A PowerPoint Presentation created by Professor Bob Twiggs titled "Systems Engineering Education Via Real Life – Hands on Projects" from October 14, 2004.

Development Of A Mechanistic Understanding Of High-Temperature Deformation Of Alloy Ep-823 For Transmutation Applications: Final Progress Report (September 2003 – August 2004), Ajit K. Roy, Brendan O'Toole

Transmutation Sciences Materials (TRP)

The purpose of this task is to evaluate the tensile properties of three martensitic alloys namely, Alloys EP-823, HT-9 and 422 at temperatures relevant to the transmutation processes. Testing has been performed to evaluate the tensile properties of all three alloys at temperatures ranging from ambient to 600^°C. The test materials were thermally-treated (quenched and tempered) prior to the evaluation of their tensile properties. The deformation characteristics of these tensile specimens, upon completion of testing, were evaluated by scanning electron microscopy (SEM). Efforts were also made to identify and characterize defects such as dislocations using transmission electron microscopy …

Improving Arithmetic Circuits For Solving Constraint Satisfaction And Optimization Problems, Marius C. Silaghi

Electrical Engineering and Computer Science Faculty Publications

In the recent years we have proposed a set of secure multiparty computations for solving distributed constraint satisfaction and optimization problems, with applications to areas like distributed scheduling, configurations, team-making, and auctions. Some of the newest versions were based on an arithmetic circuit for selecting a random element out of the elements with a given value in a (secret) array. Here we show how to improve that arithmetic circuit by a factor of at least 4. The improvement is based on an optimization of the functions and on the usage of CSP solvers to exploit public constraints.

Development Of A Virtually Calibrated Projection Moire Interferometry Technique Capable Of Inaccessible Surface Measurements, Mark Lee Kimber

Theses and Dissertations

Optical-based techniques have found merit in measuring displacement and strain for decades. These techniques are commonly used in numerous applications ranging from large displacements in wind tunnel experiments to displacement measurements on the submicron scale. Projection Moiré Interferometry (PMI) is an out-of-plane displacement measurement technique, and consists of capturing reference and deformed images of a grid pattern projected on the test object. By differencing the reference and deformed images of the projected grid pattern, a fringe pattern is generated from which the displacement field can be extracted. This computation requires calibration procedures that analyze a number of fringe patterns from …

Surface Temperature And Spectral Measurements At Santiaguito Lava Dome, Guatemala, Steve T. M. Sahetapy-Engel, Luke P. Flynn, Andrew J. L. Harris, Gregg J. Bluth, William I. Rose, Otoniel Matias

Department of Geological and Mining Engineering and Sciences Publications

An infrared thermometer, spectroradiometer and digital video camera were used to observe and document short-term evolution of surface brightness temperature and morphology at Santiaguito lava dome, Guatemala. The thermometer dataset shows 40–70 minute-long cooling cycles, each defined by a cooling curve that is both initiated and terminated by rapid increases in temperature due to regular ash venting. The average cooling rate calculated for each cycle range from 0.9 to 1.6°C/min. We applied a two-component thermal mixture model to the spectroradiometer (0.4–2.5 μm) dataset. The results suggest that the observed surface morphology changed from a cool (120–250°C) crust-dominated surface with high …

2005 Cansat Competition Guide, Robert J. Twiggs

Robert "Bob" Twiggs STEM Education Collection

A guide titled "2005 CanSat Competition Guide" for the ARLISS Project from October 11, 2004.

Variation Simulation Of Fixtured Assembly Processes For Compliant Structures Using Piecewise-Linear Analysis, Michael L. Stewart

Theses and Dissertations

While variation analysis methods for compliant assemblies are not new, little has been done to include the effects of multi-step, fixtured assembly processes. This thesis introduces a new method to statistically analyze compliant part assembly processes using fixtures. This method, consistent with the FASTA method developed at BYU, yields both a mean and a variant solution. The method, called Piecewise-Linear Elastic Analysis, or PLEA, is developed for predicting the residual stress, deformation and springback variation in compliant assemblies. A comprehensive, step-by-step analysis map is provided. PLEA is validated on a simple, laboratory assembly and a more complex, production assembly. Significant …

Almost Global Asymptotic Formation Stabilization Using Navigation Functions, Amit Kumar, Herbert G. Tanner

Mechanical Engineering Faculty Publications

We present a navigation function through which a group of mobile agents can be coordinated to achieve a particular formation, both in terms of shape and orientation, while avoiding collisions between themselves and with obstacles in the environment. Convergence is global and complete, subject to the constraints of the navigation function methodology. Algebraic graph theoretic properties associated with the interconnection graph are shown to affect the shape of the navigation function. The approach is centralized but the potential function is constructed in a way that facilitates complete decentralization. The strategy presented will also serve as a point of reference and …

Modeling, Fabrication, And Optimization Of Niobium Cavities Phase Iii: Quarterly Report, Robert A. Schill Jr., Mohamed Trabia

Transmutation Sciences Materials (TRP)

This quarterly report provides an update to the last phase of the Modeling, Fabrication, and Optimization of Niobium Cavities. Designing the experimental setup of secondary electron emission was well underway in early summer of 2003 when funding was made available for this portion the study. By March 2004, many of the components of the experimental study reached UNLV with some assembly accomplished. The first secondary electron emission (SEE) measurement was made from the surface of a Faraday cup in September 2004. At a particular beam energy, the current measured with the Faraday cup and electrometer changed sign over a range …

Use Of Positron Annihilation Spectroscopy For Stress-Strain Measurements: Quarterly Progress Report (June 01 – August 31, 2004), Ajit K. Roy

Transmutation Sciences Materials (TRP)

Highlights of Test Results:

• Residual stress measurements by the RC method on cold-worked specimens showed tensile residual stresses in austenitic stainless steel. However, compressive residual stresses were observed in martensitic stainless steel. This difference may be attributed to the difference in metallurgical phases and microstructures resulting from different thermal treatments imparted to them.

• Residual stress measurements by both ND and RC techniques on welded specimens showed similar patterns. Welded specimens consisting of similar material showed tensile residual stresses in the vicinity of the fusion line (FL). However, welded specimens consisting of dissimilar materials (austenitic and martensitic stainless steel …

Sub-Surface Corrosion Research On Rock Bolt System, Perforated Ss Sheets And Steel Sets For The Yucca Mountain Repository — Quarterly Technical Report No. 1, Dhanesh Chandra, Jaak J.K. Daemen, Raul Rebak

Publications (YM)

The principal purpose of the cooperative agreement is to develop and continue providing the public and the Office of Repository Development (ORD) of the U.S. Department of Energy’s (DOE) Office of Civilian Radioactive Waste Management (OCRWM) with an independently derived, unbiased body of scientific and engineering data concerning the study of Yucca Mountain as a potential high-level radioactive waste repository. Under this agreement, the University and Community College System of Nevada (UCCSN) will perform scientific or engineering research, and maintain and foster collaborative working relationships between government and academic researchers. The following describes the objectives of Task 019 “Subsurface Corrosion …

Solvent And Method For Extraction Of Triglyceride Rich Oil, Shubhender Kapila, Paul Ki-Souk Nam, V. J. Flanigan

Chemistry Faculty Research & Creative Works

The present invention relates to a solvent for use in extracting oil from an oil bearing material, such as soybeans, with the solvent resulting in the selective extraction of a triglyceride rich oil, which contains 95% or greater triglycerides and non-polar constituents, with the solvent comprised of a hydrocarbon, preferably hexane, and a fluorocarbon, so that the solvent has a viscosity less than 2.6 centipoise and a polarity of less than 0.1. The present invention also relates to a method of using the solvent to extract the triglyceride rich oil, with the method including preferably extracting the oil at a …

A Case Study Of Teaching A Quantitative Course Using Archived Streaming Video, Paul Savory

Department of Industrial and Management Systems Engineering: Faculty Publications

This case study highlights some of the issues and difficulties experienced in teaching a quantitative course using three methods of delivery: in-class to an audience of students, television broadcast over a satellite system to distance students, and archived streaming video accessible by students. The discussion is applicable to administrators and faculty exploring the option of teaching a course using multiple delivery approaches.

Japanese R&D On Large-Scale Co2 Capture, Takahisa Yokoyama

Separations Technology VI: New Perspectives on Very Large-Scale Operations

The Special Report on Carbon dioxide Capture and Storage was recently accepted by IPCC (1). In the context of optimization and integration of CO2 capture and sequestration, CO2 capture is a particularly important step. This paper presents a broad overview of key issues of CO2 capture technologies in the Japanese R&D, focusing on their application to large-scale power plants.

Stanford To The Moon, Robert J. Twiggs

Robert "Bob" Twiggs STEM Education Collection

A PowerPoint Presentation created by Professor Bob Twiggs titled "Stanford to the Moon" on October 2, 2004.

Fall 2004 Che Newsletter, Department Of Chemical Engineering, Michigan Technological University

Department of Chemical Engineering Newsletters

Table of Contents

• Letter from the Chair
• Michigan Tech nano research gets $1 million boost from House
• New Inductees for Chemical Engineering Distinguished Academy Honored
• Undergraduate Expo 2004- AFG takes 3rd Place in Poster Presentation
• Chem-E car Takes Second Plate in the Nationals
• Western UP Science Fair
• Sandell Joins department
• Kimojino Awarded Fellowship

Acuta Enews October 2004, Vol. 33, No. 10

ACUTA Newsletters

ln This lssue

Streaming Video Patent lssue and Higher Ed........................... Doris Stock, Virginia Tech

ACUTA's Strategic Planning Process................................... Tamara Closs, ACUTA President, Georgetown Univ.

Tech Talk ................................. Kevin Tanzillo, Dux Public Relations

Junk Faxes: FCC and/or Congress Poised to Provide Relief?............................... John J. Smith, Attorney

DC Update............................ Whitney Johnson, Retired, Northern Michigan Univ.

ACUTA Web Tip.................... Aaron Fuehrer, ACUTA Computer Services Manager

Welcome New Members

Wide Angle Decentered Lens Beam Steering For Infrared Countermeasures Applications, Jennifer L. Gibson, Bradley D. Duncan, Edward A. Watson, John S. Loomis

Electro-Optics and Photonics Faculty Publications

A beam-steering system consisting of three cemented achromatic doublets is presented. Intended for use in IR countermeasure applications, our system is designed to operate over the 2- to 5-μm spectrum with minimum angular dispersion. We show that dispersion can be minimized by using doublet lenses fashioned from AMTIR-1 and germanium. Our system is designed to be compact and lightweight, with no internal foci, while allowing steering to ±22.5 deg. We also maintain a minimum 2-in. clear aperture for all steering angles, and a nominal divergence of 1 mrad. Plane wave and Gaussian beam analyses of our system are presented.

Lean Energy Analysis: Identifying, Discovering And Tracking Energy Savings Potential, J. Kelly Kissock, John Seryak

Mechanical and Aerospace Engineering Faculty Publications

Energy in manufacturing facilities is used for direct production of goods, space conditioning, and general facility support such as lighting. This paper presents a methodology, called lean energy analysis, LEA, for graphically and statistically analyzing plant energy use in terms of these major end uses.

The LEA methodology uses as few as 60 easily obtainable data points. Multivariable change-point models of electricity and natural gas use as functions of outdoor air temperature and production data are developed. The statistical models are used to subdivide plant energy use into facility, space-conditioning and production-related components.

These breakdowns suggest the savings potential from …

Inspection And Deterioration Of Bridge Decks Constructed Using Stay-In-Place Metal Forms And Epoxy-Coated Reinforcement, Nabil Grace, James L. Hanson, Hany I. Abdelmessih

Civil and Environmental Engineering

A comprehensive research investigation was conducted to evaluate the use of Stay-in-Place Metal Forms (SIPMFs) in construction of concrete bridge decks. The objectives of this research project were to establish the state-of-the-practice for use and performance of SIPMFs for bridge decks, to evaluate the field performance of bridge decks with and without SIPMFs, and to investigate the behavior of environmentally conditioned large-scale laboratory bridge deck specimens with and without SIPMFs. A survey was developed and administered to all DOTs to examine the state-of-the-practice of using SIPMFs for concrete bridge deck construction. Additionally, a field investigation was conducted to evaluate the …

Work Flow Policy And Within-Worker And Between-Workers Variability In Performance, Kenneth Howard Doerr, Tali Freed, Terence R. Mitchell, Chester A. Schriesheim, Xiaohua Zhou

Industrial and Manufacturing Engineering

Work flow policies are shown to induce a change in average between-workers variability (worker heterogeneity) and within-worker variability in performance times. In a laboratory experiment, the authors measured the levels of worker heterogeneity and within-worker variability under an individual performance condition, a work sharing condition, and a fixed assignment condition. The work sharing policy increased the levels of worker heterogeneity and worker variability, whereas the fixed assignment policy decreased them. These effects, along with work flow policy main effects on mean performance times and variability are examined. This article represents an initial step in understanding effects that may be important …

Santa Clara Magazine, Volume 46 Number 2, Fall 2004, Santa Clara University

Santa Clara Magazine

8 - PRIZE-WINNING POETRY By Alexander Matthew Weyand '04. A poem by an SCU junior wins two student poetry competitions at SCU.

10 - I HAVE A QUESTION By Miriam Schulman. The director of communications for the Markkula Center for Applied Ethics at SCU explores the ethics of Internet research.

14 - JUSTICE IS SERVED By Susan Vogel. The Santa Clara University Community Law Center celebrates 10 years of service with a new endowment and a new name.

Investigation Of Hydrocarbon Phytoremediation Potential Of Lupinus Chamissonis In Laboratory Microcosms, Wendy Martin, Yarrow M. Nelson, Kenneth Hoffman

Civil and Environmental Engineering

Controlled laboratory microcosms were used to research the phytoremediation potential of lupines (Lupinus chamissonis) for hydrocarbon-contaminated groundwater at a former oil field near Guadalupe, California. During oil production in the Guadalupe Oil Field, a kerosene-like hydrocarbon mixture was used as a diluent to improve the flow of the heavy crude oil. Leaking tanks and pipes resulted in diluent contamination in the soil and groundwater. Native plant species were planted at a pilot-scale field site to investigate the feasibility of using phytoremediation to remediate the groundwater contamination. In the field, biological and hydrological factors make it difficult to determine the specific …

Peer-To-Peer Searching And Sharing Of Electronic Documents, Paul Stacey

Masters

Peer-to-peer systems have existed since the first incarnation of the Internet. In recent times the Internet has taken on a more hierarchical form, power has been taken away from the individual and placed in the hands of operators of large servers. However, with the re-emergence of p2p the individual is gaining more freedom. End users attached to the Internet now have the power to host and publish content through the user of p2p technologies. Peer-to-peer systems present significant design challenges and have opened up a floodgate of research in an effort to overcome some of the fundamental problems. This thesis …