WorldCat Identities

University of Dayton Research Institute

Overview
Works: 311 works in 406 publications in 1 language and 3,086 library holdings
Genres: Handbooks and manuals  Software 
Roles: Researcher
Classifications: TD796.2, 363.728
Publication Timeline
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Most widely held works about University of Dayton
 
Most widely held works by University of Dayton
User's guide for SWAMI : Strategic WAste Minimization Initiative, version 2.0( Book )

3 editions published between 1989 and 1992 in English and held by 182 WorldCat member libraries worldwide

Obtaining improved products from the organic fraction of municipal solid waste( Book )

1 edition published in 1980 in English and held by 122 WorldCat member libraries worldwide

Design considerations for a thermal decomposition analytical system by Wayne A Rubey( Book )

1 edition published in 1980 in English and held by 119 WorldCat member libraries worldwide

Laboratory evaluation of high-temperature destruction of kepone and related pesticides by D. S Duvall( Book )

4 editions published in 1976 in English and held by 108 WorldCat member libraries worldwide

Investigation of advanced thermal-chemical concepts for obtaining improved MSW-derived products by N. L Hecht( Book )

2 editions published in 1978 in English and held by 103 WorldCat member libraries worldwide

Image quality and the display modulation transfer function : experimental findings by Ronald J Evans( Book )

2 editions published in 1993 in English and held by 86 WorldCat member libraries worldwide

Image quality metrics represent an attempt to quantify differences in the quality of the transmission and display of visual information. This report focuses on components in the image transfer process which contribute to image quality as well as tasks through which image quality may be empirically defined. Components consist of the content of the original image, display device characteristics, and observer characteristics. Special attention within these three components is given to the display Modulation Transfer Function (MTF) which has traditionally been the major contributor to image quality metrics. Ambiguities exist in the definition and measurement of display MTFs and these problems are discussed as they pertain to image quality. Additional discussion includes the use of threshold versus suprathreshold tasks as empirical measures of image quality and the use of the Contract Sensitivity Function (CSF) versus the MTF of the eye in image quality metrics. An argument is presented which questions the use of either the CSF or MTF for suprathreshold tasks. In order to test the use of display MTFs in metrics, a methodology is described for digitally filtering images with filter representing hypothetical display MTFS. Although this method permits a subset of display MTFs to be compared, further efforts are required to compare MTFs which exhibit a crossover effect in the spatial frequency domain. Finally, empirical observations suggest that other display parameters (e.g., luminance) must be weighted more heavily in image quality metrics. Contrast sensitivity function, Fourier transform, Modulation depth, Convolution filter, Image quality, Modulation transfer function, Display quality, Image quality metric, Spatial frequency
Managing color appearance in self-luminous displays by Celeste M Howard( Book )

2 editions published in 1996 in English and held by 84 WorldCat member libraries worldwide

This report discusses color-appearance problems arising in self-luminous displays (SLDs), with special emphasis on computer-generated displays. Since no color appearance system designed for SLDs is yet available, many users apply one of the color appearance systems that have been developed for use with reflective materials. These systems can be helpful for managing color appearance in SLDs, especially when the display is intended to simulate a natural scene containing reflective objects and surfaces. The report provides guidelines for simulating samples from four such systems (Munsell, NCS, DIN, and OSA) on SLDs, pointing out the essential role played by context and background in determining color appearance. Figures and graphs are used to illustrate the differences between reflective samples and SLDs with respect to their gamuts of realizable colors. Attention is drawn to problems inherent in the concepts of brightness, lightness, colorfulness, and grayness since these problems have special implications for SLDs. The report suggests different uses for which each of the four color appearance systems is particularly well suited
Texture discrimination research using an IBM PC by George A Geri( Book )

1 edition published in 1990 in English and held by 77 WorldCat member libraries worldwide

A menu-driven program is described that generates and displays fully textured (i.e., 8-bit gray scale) stimuli which have been used to study human texture perception. The stimuli are displayed on standard video monitors using commercial video-controller cards installed in an IBM PC/AT. The program implements both double random staircase and constant stimuli procedures for obtaining threshold discrimination data and also allow similarity-rating data to be collected. Data in each of these formats can be analyzed and plotted. The program also produces files containing stimulus specifications corresponding to any chosen number of superimposed sinusoids, generates the specified stimulus (with either a rectangular or gaussian window) using the data in those files, and performs a monitor gamma-correction via look-up tables. Keywords: Display hardware, Laboratory computer software, Visual research
Shape discrimination research using an IBM PC by Air Force Human Resources Laboratory( Book )

1 edition published in 1990 in English and held by 75 WorldCat member libraries worldwide

The physical and empirical basis for a specific clear-air turbulence risk index by John L Keller( Book )

1 edition published in 1986 in English and held by 73 WorldCat member libraries worldwide

Instructor/operator station design handbook for aircrew training devices by Harold D Warner( Book )

3 editions published in 1987 in English and held by 73 WorldCat member libraries worldwide

The purpose of this handbook is to provide human engineering guidelines for the design of flight simulator instructor/operator stations (IOSs). Guidelines are included for (a) electronic displays, (b) manual controls, (c) control placement, (d) workstation design, and (e) workstation seating. Human engineering design standards, scientific literature surveys, and empirical human factors investigations constituted the primary sources from which the guidelines were established. The specific sources from which each guideline was extracted, the source dates of publication, and the source design specifications are provided for each of the IOS design recommendations in the handbook. The human body dimensions and arm reach distances of representative groups of both male and female operators are also included in the handbook. Finally, an appendix is provided containing a comprehensive listing of published IOS design investigations
Calibration and validation of a solid-state anomaloscope by George A Geri( Book )

3 editions published in 1987 in English and held by 66 WorldCat member libraries worldwide

Solid state anomaloscopes whose stimuli are derived from light emitting diodes are less expensive and simpler than conventional anomaloscopes. This effort assessed the test-retest reliability and the validity of one solid state anomaloscope, and obtained normative data. Reliability and validity were assessed through the classification of 36 color defective subjects into one of five categories defined by degree of defect. When all color defectives were considered, both the validity and reliability of the solid-state anomaloscope were less well separated in chromaticity space, although there was no evidence that this limitation resulted in the incorrect classification of anomalous trichromats as dichromats. The solid state anomaloscope appears to be an acceptable alternative to standard anomaloscopes for both research and clinical applications
Dayton aircraft cabin fire model validation : phase 1 by Charles D MacArthur( Book )

3 editions published between 1978 and 1979 in English and held by 66 WorldCat member libraries worldwide

How quickly can attention affect form perception? by Don R Lyon( Book )

3 editions published in 1987 in English and held by 65 WorldCat member libraries worldwide

It is possible to attend to different locations in the visual field without changing fixation. Recently, some researchers have suggested that sequenced of such internal attention shifts may be a necessary part of perception. This seems to require that attention be shifted very rapidly, since a complex scene can often be seen with only brief presentation. The present experiments trace the time course of the effects of internal attention shifts on form discrimination accuracy. Observers were cued to attend to one of four peripheral locations while maintaining central fixation. After a brief variable interval, four T-like target figures were presented, one at each location, followed by masks. The observer then identified the target that appeared at the cued location. The first two experiments showed that rapid-onset attention effects, which occur when cue is presented near the target, can also be obtained with a cue presented fixation, given sufficient practice. This argues that such effects are indeed attentional in nature and are not due to local cur-target presentation is considered, the latency of attention effects is very short. Furthermore, attention increases the rate at which information is extracted from a stimulus. Keywords: Attention shift, Form discrimination, Form perceptive, Visual perception
Aircrew training devices : utility and utilization of advanced instructional features (phase III - electronic warfare trainers) by Donald J Polzella( Book )

2 editions published in 1986 in English and held by 63 WorldCat member libraries worldwide

An aircrew training device (ATD) is not merely a flight simulator. It is also equipped with sophisticated hardware and software capabilities, known as advanced instructional features (AIFs), that permit a simulator instructor to control, monitor and fabricate simulator training missions. This report describes the third phase of a three-phase project designed to determine the utility and utilization of AIFs by means of a survey of simulator instructors from the Air Force Major Commands. Phase I surveyed 134 instructor pilots and weapons director instructors assigned to principal Tactical Air Command (TAC) ATD training sites. Phase II surveyed 273 instructor pilots, flight engineers, and radar/navigators from Air Training Command (ATC), Military Airlift Command (MAC), and Strategic Air Command (SAC). Phase III extended the survey to 155 electronic warfare and aerial gunnery instructors from ATC, SAC, and TAC training facilities. Based on utility and utilization ratings, the T-5 and T-4 trainers were the most favorably evaluated devices surveyed. They were followed, in order, by the F-4G simulator, B-52 weapon system trainer, and A-10 simulator. The level of AIF use was affected somewhat by hardware and software unreliability, implementation time, functional limitations, and design deficiencies
Development of a retrieval system by Anthony Debons( Book )

1 edition published in 1970 in English and held by 63 WorldCat member libraries worldwide

Modeling eye movement sequences using conceptual clustering techniques by Michael S Belofsky( Book )

3 editions published in 1988 in English and held by 62 WorldCat member libraries worldwide

An algorithm for clustering noisy continuous numeric data was developed in a learning system called 2DCG (two dimensional cluster generalization). The 2DCG system operates in a two-dimensional space, but a general system could operate in an N-dimensional space. The objective of the system was to learn a set of rules which modeled human observers (in the application presented here, this model predicted changes in the eye position of human observers during a visual monitoring task). The rule set had to be complete, consistent, and nonredundant, while minimizing the number and maximizing the generality of the rules. The development of this model and its performance in accounting for noisy data are described. Keywords: Artificial intelligence, Concept learning, Conceptual clustering, Cognitive modeling, Eye movements, Grouping, Rule-based systems, Segmentation, Visual monitoring. (sdw)
Prediction and monitoring of clear air turbulence : an evaluation of the applicability of the Rawinsonde system by John L Keller( Book )

3 editions published in 1978 in English and held by 60 WorldCat member libraries worldwide

Comparative aspects of multiple processes of attention by MaryLou Cheal( Book )

3 editions published in 1988 in English and held by 58 WorldCat member libraries worldwide

In this paper, first, there are examples of human and animal research in which attention is separated into various components. Terms used to designate various aspects or subcomponents of attention are compared from different research paradigms. Secondly, four experiments on the time course of human attentional effects on discrimination of different stimuli are discussed in relationship to other research in the literature. For these experiments, a precue was used to move attention to the target location. Accuracy in discrimination of the target as a function of the time between precue and target was measured. In three of these experiments, targets differed as to line arrangement or line orientation. It was suggested that line arrangement discrimination requires focused attention whereas line orientation discrimination may not. The data were related to some of the dichotomous terms used to describe processes that differ in the need for focused attention. In a fourth experiment, eccentricity of the target was varied. These data provided evidence of time invariant attention movement for distance less than ten degrees. The results from the four experiments are discussed (a) as separation of line orientation discrimination from line arrangement discrimination by need for focused attention and (b) as examples of engagement, movement, and disengagement from stimuli in a discrimination task. Keywords: Visual attention, Visual perception, Psychophysiology, Perception(Psychology), Neurophysiology. (SDW)
Third annual progress report on the electrofluid dynamic wind generator : final report for the period 15 September 1977-30 September 1978 by John E Minardi( Book )

2 editions published in 1979 in English and held by 58 WorldCat member libraries worldwide

 
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Alternative Names
Research Instiute

UDRI

University of Dayton Research Institute

University Research Institute

Languages
English (46)