Digital Commons Network^™

Practical Considerations On Color Image Enhancement Using Homomorphic Filtering, Liviu I. Voicu, Harley R. Myler, Arthur R. Weeks

Faculty Bibliography 1990s

We present a study concerning the practical possibilities of using the homomorphic filtering for color image enhancement, Two of the most popular color models, RGB and C-Y (color difference), are employed and the results are comparatively discussed. The homomorphic filtering has proven to be a viable tool for both color models considered.

Mathematical Modeling Of Melting During Laser Materials Processing, J. Xie, A. Kar

Faculty Bibliography 1990s

Melting is encountered in almost all laser materials processing. This article deals with a one-dimensional heat conduction problem to investigate the melting rate during laser materials processing. The problem is solved approximately to obtain a correlation among melt depth, power density, and laser irradiation time. Based on this correlation, the dynamics of melting, a relationship between the melt depth and power density and an average melting velocity are expressed by simple analytic formulas. These expressions are further simplified for high power densities (I greater than or equal to 10(9) W/m(2)). The times to reach the melting and boiling temperatures at …

Melting And Vaporization For Large-Area Film Removal With A Chemical Oxygen-Iodine Laser, J. Xie, A. Kar

Faculty Bibliography 1990s

Large-area film removal with lasers is a physical process of melting and vaporization of films. A mathematical model is developed to simulate the melting and vaporization of films under the irradiation of a chemical oxygen-iodine laser. The cross section of the film after laser scanning and the substrate surface temperature during laser irradiation are presented. There is an optimum laser power at which relatively wide films can be removed by maintaining low temperature at the substrate surface. The optimum laser power is associated with other process parameters. The results of film removal with TEM31 and TEM00 beams are compared, and …

Normal Lattices And Coseparation Of Lattices, Barry B. Mittag

Mathematics Faculty Publications

No abstract provided.

Masters Programs Division Of Health Services Administration, Nova Southeastern University

Huizenga Postgraduate Course Catalogs

No abstract provided.

Doctoral Programs Fall Term 1997, Nova Southeastern University

Huizenga Postgraduate Course Catalogs

No abstract provided.

Comment On Ingraham's Moral Duty To Talk And The Right To Silence, Gregory W. O'Reilly

Journal of Criminal Law and Criminology

No abstract provided.

Copyrights, Criminal Sanctions And Economic Rents: Applying The Rent Seeking Model To The Criminal Law Formulation Process, Lanier Saperstein

Journal of Criminal Law and Criminology

No abstract provided.

Immaturity And Irresponsibility, Stephen J. Morse

Journal of Criminal Law and Criminology

No abstract provided.

Diophantine Type Fractional Derivative Representation Of Structural Hysteresis, Part I: Formulation, Joe Padovan, Jerzy T. Sawicki

Mechanical Engineering Faculty Publications

Based on a diophantine representation of the operational powers, a fractional derivative modelling scheme is developed to simulate frequency dependent structural damping. The diophantine set of powers is established by employing the curvature properties of the defining empirical data set. These together with a remezed least square scheme are employed to construct a Chebyschev like optimal differintegro simulation. Based on the use of the rational form resulting from the diophantine representation, a composition rule is introduced to reduce the differintegro simulation to first order form. The associated eigenvalue/vector properties are then explored. To verify the robustness-stability accuracy of the overall …

The Law And Psychiatry Wars, 1960-1980, Sheldon Gelman

California Western Law Review

No abstract provided.

An Introduction To Data Envelopment Analysis In Technology Management, Keith Hollingsworth, Timothy R. Anderson

Engineering and Technology Management Faculty Publications and Presentations

Productivity is a major source of competitive advantage but improving productivity requires analysis and productivity is getting more difficult to measure as economies become more knowledge, service, and innovation intensive. In this paper, we will provide an introduction to a powerful productivity analysis tool, Data Envelopment Analysis (DEA). DEA is a flexible tool originally created in the 1970s for examining the relative efficiency of non-profit institutions. Researchers have found many more applications and created numerous extensions to DEA. This paper provides an introduction to DEA, a summary of some of the most important modeling variations, and examples of applications relevant …

Center For Photochemical Sciences Publications, Volume 10 Issue 1, Spectrum Editors

The Spectrum

No abstract provided.

Electron-Transfer Reactions At Silicon/Liquid Interfaces, Arnel M. Fajardo, Nathan S. Lewis

The Spectrum

No abstract provided.

Local Governments And Public Facilities Construction In Nebraska: Expenditures, Cooperation And Operation Of Joint Facilities, Center For Public Affairs Research (Cpar)

Publications

This study of public facilities construction was completed by the University of Nebraska at Omaha, Center for Public Affairs Research for the Nebraska Commission on Local Government Innovation and Restructuring.

Universities As Citizens Summer Planning Institute, Universities As Citizens Summer Planning Institute

Conference Proceedings

Table of Contents: General Information; Developing and Action Plan; Institutional Change; Resources; and Selected Readings

Reading Together: California Campuses And Communities Connect Through America Reads, America Reads

Project Summaries

Reading Together provides an in-depth look at how America Reads is working in California. It describes how America Reads operates in schools and communities and offers insight into what makes for strikingly successful programs.

As the data and case studies show, America Reads programs are doing great things throughout this state. Since the spring of 1998, more than 9,300 California college students have worked as America Reads tutors in more than 900 schools. Because of America Reads, almost 25,000 California elementary school children have so far received the extra help they need to learn to read and their numbers will …

The Work Of Citizenship And The Problem Of Service-Learning, Harry C. Boyte, James Farr

Civic Engagement

The debates about service learning are not merely internecine squabbles between educators over methods and manners of out-of-class instruction. Or at least they don't have to be. For they reflect and are implicated in broader debates about community service and civic education more generally, as well as about citizenship, public policy, and even our understandings of American democracy and history. Take a couple of snapshots of these broader debates, now and then.

Myths And Facts About Cluster Development: A Case Study Of Two Rhode Island Towns, James A. Lucht

Open Access Master's Theses

No abstract provided.

Ellipsometric And Raman Spectroscopic Study Of Thermally Formed Films On Titanium, E. Hristova, Lj. Arsov, Branko N. Popov, Ralph E. White

Faculty Publications

Thermal films on titanium surfaces were formed by heating titanium samples in air at atmospheric pressure. The optical constants, thickness, and structure of the formed films at various temperatures and times of heating were investigated by ellipsometry and Raman spectroscopy. The complex index of refraction and the thickness of generated films were determined by comparing the experimental loci and obtained by ellipsometric measurements with theoretical computed vs. curves. It was found that the thickness in homogeneity and porosity of formed films increase with increasing temperature and the duration of the thermal treatment. Beyond a certain critical temperature, the appearance of …

The Effects Of Organic Compounds On Inhibition Of Hydrogen Permeation Through A Mild Steel Membrane, H. A. Duarte, D. M. See, Branko N. Popov, Ralph E. White

Faculty Publications

The effectiveness of 5-(4-pyridyl)-2,7-nonadiene, and 1 phenyl-2-propyn-ol (PP) on inhibition of the hydrogen evolution reaction on a 1010 steel membrane and on the degree of hydrogen ingress into the membrane was determined. Hydrogen evolution rates and permeation currents were monitored as a function of time at different applied potentials. In the presence of 0.5 g/liter PP in the electrolyte, the hydrogen discharge and permeation current density were inhibited by 98 and95%, respectively.

A Friendly Countercomment To Holton, Arthur Iberall

Comparative Civilizations Review

No abstract provided.

Dordt College 1997-98 Catalog, Dordt College. Registrar's Office

Academic Catalogs

Academic Catalog for 1997-98

The Sword Or The Shield: Use Of Governmental Regulations, Exposure Standards And Toxicological Data In Toxic Tort Litigation, Ellen Relkin

Penn State Environmental Law Review (1991 - 2011)

No abstract provided.

Hard Look Review In A World Of Techno-Bureaucratic Decisionmaking: A Reply To Professor Mcgarity, Mark Seidenfeld

Scholarly Publications

No abstract provided.

Lithographers' Opinions About Waterless Lithography, Devang Pranlal Mehta

Dissertations and Theses @ UNI

The purposes of this study were to identify the advantages and disadvantages of waterless litho in comparison with traditional litho, to solve the controversial issues, to forecast the growth of waterless litho, and to inform graphic arts professionals about it. The problem of this research was to identify and measure perceived controversial issues for using the waterless litho process. These controversial issues were related to the return on investment and operating costs involved, productivity, quality of images, eco-friendliness, and technical problems associated with waterless litho.

Due to the fact that waterless litho was a developing technology and some controversial issues …

Curriculum Development And Evaluation For A Computer Literacy Course, Molly J. Fagan

Dissertations and Theses @ UNI

This paper describes a curriculum that was developed and used for a computer literacy course at the University of Northern Iowa. The curriculum included a unit of computer programming, which has not been included as part of the computer literacy course in recent years at the University of Northern Iowa. Surveys were given at the beginning of the semester to determine the approximate level of students' prior knowledge. The same survey was given at the end of the semester and the results of both were compared to see how much more comfortable each individual student felt using the various computer …

Perceptions Of Businesses On Environmental Regulatory Information, Kimberly K. Gunderson

Dissertations and Theses @ UNI

The purpose of this study was to determine the source and amount of information that a sample of businesses receive on environmental regulatory topics and from what sources they would prefer to receive this information. More specifically, the study demonstrated the discrepancy between the sources from which businesses currently receive their information and the sources from which they would prefer to receive it. The study also addressed how relevant this information was to the businesses and with which regulations the businesses were the most and least knowledgeable. The study was done by conducting a mail-back survey of 500 Iowa small …

Randomised Shuffle And Applied Misinformation: An Enhanced Model For Contact-Based Smart-Card Serial Data Transfer, Michael Collins

Theses: Doctorates and Masters

Contact-based smart-cards, which comply to the International Standard IS0-7816, communicate with their associated read/write machines via a single bi-directional serial link. This link is easy to monitor with inexpensive equipment and resources, enabling captured data to be removed for later examination. In many contact-based smart-cards the logical abilities are provided by eight-bit microcontroller units (MCU) which are slow at performing effective cryptographic functions. Consequently, for expediency, much data may be transferred in plain-text across the vulnerable communications link, further easing an eavesdropper's task. Practitioners in military communications protect transmitted information by varying a link's carrier frequency in an apparently random …

Selecting The "Best" Using Data Envelopment Analysis, Timothy R. Anderson, Akin Uslu

Engineering and Technology Management Faculty Publications and Presentations

One of the most important strengths of Data Envelopment Analysis, (DEA), is that it allows almost complete freedom in the way that each decision making unit, (DMU), evaluates itself relative to its peers. This tends to result in many DMUs receiving a high efficiency score. Particularly when DEA is applied in a decision making context, it may be desirable to select a single option rather than determining the set of efficient alternatives in ranking efficient DMU or to Assist selecting a "best" DMU. Several extensions to DEA have been proposed and used. This paper examines, compares, and integrates a variety …