Digital Commons Network^™

Fourier Image Synthesis And Slope Spectrum Analysis Of Deepwater, Wind-Wave Scenes Viewed At Brewster's Angle, Jan Arthur North

Theses

A semi-empirical model for the Fourier synthesis of deepwater, wind-wave scenes has been constructed for the analysis of water-wave slope spectra. The main simplifying assumptions of this model are 1) fully-developed wind-wave surfaces are quasi-homogeneous, quasi -stationary and are therefore treatable by Fourier methods, 2) the subsurface is both optically and mechanically deep, and 3) the small range of spectral wave components defines a fetch-limited, small amplitude condition. A nonlinear transformation of wave slope to reflected and refracted radiance in both horizontal and vertical polarizations was effected under the special conditions of Brewster-angle viewing under clear skies at a spectral …

Influence Of Feedback Specificity And Simultaneous Goals On Task Performance, David W. Furst

Student Work

A laboratory experiment was conducted examining the influence of feedback specificity and simultaneous quantity and quality goals on the performance of an assembly task including the effect of feedback specificity on perceptual and behavioral measures of intrinsic motivation. The hypotheses were framed in terms of a traditional goal setting model and a control systems-goal conflict model. Neither model was supported for the quantity performance measure in that varying the specificity of quantity of performance feedback did not result in differential quantity of performance. The traditional goal setting model was supported based on results from the quality performance measure . These …

Concurrent Validity Of The Pain Locus Of Control Scale And Its Relationship To Treatment Outcome Variables, Linda Kay Schaefer

Student Work

Studies have shown that locus of control orientation is related to emotional and behavioral adjustment to chronic pain. Researchers have begun the process of establishing the validity and reliability of the Pain Locus of Control Scale. This study was conducted to establish the concurrent validity of the PLC Scale at the time of follow-up from pain management treatment, an effort not previously undertaken. In addition, studies suggest that those persons with an Internal locus of control orientation demonstrate more favorable treatment outcomes, as compared to a Powerful others or Chance locus of control. This research examined the relationship between treatment …

Cigarette Smoking And Its Effect Upon Perceptions Of Source Credibility, Cari L. Tokheim

Student Work

This thesis examined the effect of cigarette smoking on perceptions of source credibility. Twenty-five bi-polar adjectives were used to measure five dimensions of credibility (competency, character, sociability, composure, and extroversion) developed by McCroskey and Jenson. Subjects recruited from students enrolled at the University of Nebraska at Omaha (n = 272) were assigned one of four versions of a photograph depicting either a male or female model holding a cigarette, or those same models in identical photographs with the cigarette removed. Subjects were then asked to complete the credibility scales, based upon the person depicted in the photograph.

Results from the …

Preparation And Characterization Of Semi-Flexible Thermotropic Poly(Ester-Imide)S, John V. Facinelli

Theses

A series of novel poly(ester-1m1de)s were prepared by the reaction of meta- and para-substituted trlmellltimide dicarboxylic diacid chlorides with various diols containing four, five, six, seven, eight, nine, ten and twelve methylene groups by a solution polymerization technique utilizing refluxing 1,2,4-trichlorobenzene as a solvent. The poly(ester-1mide)s were characterized by dilute solution viscosity, infrared spectroscopy, differential scanning calorimetry and polarized light microscopy. The inherent viscosities of the meta-substituted poly(ester-imide)s ranged from 0.06 to 0.25 dL/g while those of the para-substituted poly(ester-imide)s ranged from 0. 1 0 to 0.65 dL/g and were obviously of higher molecular weight. The meta series were amorphous …

Proxemic Behavior Of The Nonhandicapped Toward The Visually Impaired, Carol J. Olsen

Student Work

This study investigated spatial behavior of nonhandicapped individuals toward physically handicapped individuals. Initial seating distance was measured between a visually impaired experimenter and nonhandicapped subjects. Subjects were from the University of Nebraska at Omaha. Students completed a survey and then, one at a time, went to an adjacent room to answer some follow-up questions posed by a visually impaired confederate. Distances were measured and compared to other studies measuring handicapped/ nonhandicapped interactions. Previous research showed significant differences in distance between handicapped/ nonhandicapped interactions and nonhandicapped/nonhandicapped interactions. Greater distances were chosen when interacting with a physically handicapped individual than with a …

A Study Of The Effects Of Paper, Ink And Drying Techniques On Lithographic Ink Transfers During Electrophotographic Imprinting, Lisa Rentschler

Theses

Product end use dictates the materials used to produce a printed piece. If flexographic printers are purchasing ink for a packaging carton job, they don't choose a scuff prone ink. The same should be true for printers producing letterheads for subsequent use in electrophotographic equipment . Electrophotography is an image transfer process that uses the principles of electrostatics. An Ektaprint 200 copier/duplicator charges the surface of a sheet exposing an image area, develops that image, affixes toner to that image and then mechanically traps the toner to the surface of the substrate using heat and/or pressure. When a litho graphically …

The Predictive Value Of Mmpi Personality Style In Obesity Therapy, Jeffrey J. Harvey

Student Work

The present study assessed whether psychopathology influences obese subject’s ability to lose weight. The Minnesota Multiphasic Personality Inventory (MMPI) was used to differentiate between 46 pathological and 52 nonpathological subjects. A repeated measures analysis of variance did not support the hypothesis that the degree of weight loss is negatively associated with the amount of psychopathology measured by the MMPI. In addition, an analysis of covariance was conducted in an attempt to control for possible confounding factors at the start of treatment and also failed to support the hypothesis.

The Effects Of Feedback Referent And Content Upon Self-Determination, Rated Task Interest, And Intrinsic Motivation, Kerry L. Sheehan

Student Work

This study was an attempt to determine if verbal feedback could be used to convey information about feedback referent and feedback content to individuals in an experimental setting, and if so, if that information would influence their perceptions of perceived task competence, self-determination, task-interest, and intrinsic motivation. Eighty subjects were used from psychology classes. The majority were college freshmen or sophomores. Results showed that subjects did attend to the feedback referent, but that the referent had no subsequent influence on any of the dependent variables. Additionally, the feedback content manipulation did not produce the predicted effects upon the dependent variables. …

The Effects Of Facial Attractiveness On Judicial Recommendations Made By Middle-Aged Mid-Western Females, Angela Boyd

Student Work

Upon first meeting someone, we are most likely to notice their physical appearance before anything else. "We have a strong tendency to be favorably impressed by attractive people and to be less favorably impressed with those who are not so attractive" ( Janda, & Klenke-Hamel, 1982, p. 422). There are a number of studies that have dealt with characteristics of an individual as related to his or her physical attractiveness. Past studies (Asch, 1946, Landy & Aronson, 1969) have also looked at attractive and unattractive individuals and the effects this has on one's expectations of these individuals.

Construct Validity And Development Of Local Norms In The Assessment Of Adhd., Rose Ternes Hunter

Student Work

A pilot study was performed to determine the validity of on-task behavior and locally developed attention tasks# to assist in the identification of children with ADHD. Subjects were third grade students in the Hampton City Public Schools. Means and standard deviations were computed for time-on-task as well as number correct and number committed for each of five separate attention tasks. A correlation analysis was performed to compare results of attention tasks with each other as well as with the Abbreviated Conners Teacher's Scale (ACTS), a Hyperactivity Index, and IQ. Results were in the expected direction, although correlations with ACTS were …

Pmos Ccd, Mary J. Marek

Theses

Charge Coupled Devices are being used in optical imaging devices, shift registers, digital logic and such signal processing components as variable delay lines, transversal filters and signal correlators. The following work is focused on the design and fabrication of a CCD functioning as an 8-bit shift register.

A Communication Methodology For Subordinates-Supervisors To Coactively Generate Heuristic-Leadership Decisions In Commercial Banking, Mary Ann Danielson

Student Work

This thesis neither advocates nor strictly adheres to the dominant, top-down style of leadership often used in commercial banking institutions. Rather, while working within the commercial bank setting, this thesis focuses on the subordinatesupervisor relationship and emphasizes a heuristic approach to leadership.

Negotiation Pedagogy As Communication Methodology Focused On Conditionality And Recursivity In Third-Order Coupling, Eroca Gabriel

Student Work

This study is not a prescribed method of communication techniques for learning how to negotiate. It is not designed to teach the reader various and sundry negotiation strategies or tactics. Neither is this a study in East Indian communication theory or cross-cultural communication. The result of this study is a negotiation pedagogy as communication methodology—a distinctly heuristic design intended to lead the student of negotiation to discover his/her own capacities for negotiating. In the broad realm of negotiation, this study serves to introduce a new approach—actually a meta-approach to negotiating— that provides a systematic means whereby students can direct themselves …

A Calibration Study Of A Still Video System And Photomatic Color Separation Program, Carl M. Palmer

Theses

None provided.

Photography In Lisbon, Portugal, Luis Pavao

Theses

None provided.

Dependence Of Stress And Resistivity Of Sputtered Copper Films On Deposition Conditions, Tse-Shih Chen

Theses

Stress and resistivity in sputtered copper films on glass and polyimide (Kapton H) substrates were studied as functions of deposition rate and argon working gas pressure. For deposition rates from 1 A/sec to 5 A/sec, three regions were studied at different argon gas pressures : (1) a compressive region at 2 mTorr, (2) a tensile region at 10 mTorr and (3) an intermediate region at 3.5 mTorr with a deposition rate of 4.8 A/sec corresponding to the transition from the tensile to the compressive region. Our results and discussions suggest that the morphology and impurity level are important factors in …

Provenance Determination Of Bronze Age Pottery Using Neutron Activation Analysis, Debra Ann Kipler-Koch

Theses

Neutron activation analysis has been used for provenance determinations of Bronze Age pottery from two cities in the Jordan River and Dead Sea areas . A pottery shard group believed to represent the local clay composition of one of the sites based on statistical clustering procedures was used with a dilution factor method developed by H. Mommsen and colleagues (1) to determine the origin of the shards. Based on the dilution factor method, a provenance determination has been established for three of the thirty - two shards analyzed. Irradiations of 30 min, 1 hr, and 4 hr duration were performed …

Comparison Of Four Digital Halftone Screen (Dither) Patterns Using Quantitative Analysis Of The Binary Image Microstructure, Jacquelyn S. Ellinwood

Theses

The ordered-dither halftoning technique which reproduces continuous tones with spatially encoded binary imaging elements uses the digital halftone screen. The effect at the microstructural level of four screens on tone reproduction, spatial signal reproduction, and quantization noise is evaluated by measuring the tone reproduction curve (TRC), the two-dimensional Fourier transform of a constant density patch, the degree of harmonic distortion (THD), the system Modulation Transfer Function (MTF), and the Wiener Spectrum (WS) produced by each screen. The applicablity of these five conventional image evaluation metrics on binary output is also evaluated. Spatial averaging is done to convert the binary output …

Distributed C++ : Design And Implementation, Pradeep P. Mansey

Theses

Distributed C++ is a learning tool developed to investigate distributed programming using the object paradigm. An extension is designed for C++, to enable the use of C++ in programming distributed applications. A user transparent interface is designed and implemented to create and manipulate remote objects on a network of workstations running the Unix operating system. The concept of remote classes is introduced and remote object invocation is implemented over a remote procedure call mechanism.

A Computer Implementation Of An Orthonormal Expansion Method For Digital Image Noise Suppression, Hui-Jung Lee

Theses

Images are usually corrupted by noise which comes from various sources: noise in the recording media (e.g. film grain noise), and noise introduced in the transmission channel. Noise degrades the visual quality of images and obscures the detail information in the images. One of the major sources of noise for images recorded on films is film grain noise. An orthonormal expansion algorithm for digital image noise suppression is implemented. The objective is to preserve as much sharpness and produce as few artifacts in the processed image as possible. The method sections an image into non-overlapping blocks. Each block is treated …

Computing Techniques For The Enumeration Of Cyclic Steiner Systems, Timothy Frenz Carl

Theses

In this thesis a powerful algorithm is developed for finding cyclic Steiner systems. A cyclic Steiner system with parameters S(t,k,v) is a pair ( V,B), where B is a collection of subsets all of size k (called blocks) and V is a t; element set of points, such that each t-subset of V is contained in precisely one block of B. A Steiner system is called cyclic if it has an automorphism carrying the points in a v-cycle. The results obtained so far with this algorithm are given in Table VII of chapter 5. Among the values reported there, are …

Hops: A Hierarchical/Object-Oriented Programming Environment System, Ryuichiro Kodama

Theses

The concept of object-oriented programming is becoming an important paradigm in which programmers represent and solve problems. HOPS (Hierarchical / Object-oriented Programming Environment System), developed in this thesis project, employs this concept to represent and manipulate the resources of a programming environment. All the resource objects (such as files, directories, simple integer data and so on) are hierarchically arranged for easy access and management, as the user moves through a tree structure just as in the UNIX file system. HOPL (Hierarchical / Object-oriented Programming Language), whose grammar is similar to C language, has been designed so that the expression of …

Detecting Errors In Software Using A Parameter Checker: An Analysis, John Sexton A.

Theses

This paper will discuss a study of parameter errors that occurred in a software product developed using the "C" language. Through the use of a parameter checker that was developed from an existing compiler, the frequency and type of parameter errors over several releases of an application are studied. In addition to parameter checking, other static analysis data was collected concerning function usage (or non-usage) and function return value comparisons. This paper may serve as a useful complement to previous static analyses done for the FORTRA, COBOL and Pascal languages. The study presents statistics that show the large number of …

Amused: A Multi-User Software Environment Diagnostic, Mary Ann Foltman

Theses

As software projects grow in size and complexity, many individuals take over the responsibilities for one project, creating a potential for new errors in the development process. Software version inconsistency, unfamiliarity with the tools used, and software tool restrictions are but some of the problems encountered in a multi-programmer environment. These problems are not always self-evident to the programmer and may require a dedicated software support representative or experienced programmers to assist. These problems can be reduced through the development of a multi-user software environment diagnostic expert system, AMUSED (A Multi-User Software Environment Diagnostic). The AMUSED expert system is designed …

A Simulated Shape Recognition System Using Feature Extraction, Wendy Pan

Theses

A simulated shape recognition system using feature extraction was built as an aid for designing robot vision systems. The simulation allows the user to study the effects of image resolution and feature selection on the performance of a vision system that tries to identify unknown 2-D objects. Performance issues that can be studied include identification accuracy and recognition speed as functions of resolution and the size and makeup of the feature set. Two approaches to feature selection were studied as was a nearest neighbor classification algorithm based on Mahalanobis distances. Using a pool of ten objects and twelve features, the …