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1997

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Yield Management And Its Practical Application In Hotels, Jeffrey M. Caneen Jan 1997

Yield Management And Its Practical Application In Hotels, Jeffrey M. Caneen

UNLV Retrospective Theses & Dissertations

Yield management is an approach to pricing that is often used by industries in which the marginal production cost is relatively high, while the marginal sales cost is relatively low. The hotel industry meets this criterion. Industry publications demonstrate a keen interest in the revenue enhancing potential of yield management, but there has been little research on the extent to which this pricing technique is actually utilized by hotel general managers; This research tests the proposition that there are eight basic elements of yield management in hotels. The degree to which yield management is practiced is indicated by the extent …

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Motion Compensated Images Using Rgb Data, Jin Ah Jeon Jan 1997

Motion Compensated Images Using Rgb Data, Jin Ah Jeon

UNLV Retrospective Theses & Dissertations

A motion compensation algorithm correcting not only for translation but also for rotation, scaling, and shearing, is investigated in this thesis. Our work also includes noise detection and noise compensation due to the variation of the light. The probability distribution of the noise is investigated. The variation of the light could occur due to the voltage variation or due to the sunlight variation in the presence of clouds, or other reasons. Practical results have also been obtained by applying our theory to moving pictures.

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The Effects Of Learning A Programming Language On Logical Thinking Skills, Margaret Gradwell Mains Jan 1997

The Effects Of Learning A Programming Language On Logical Thinking Skills, Margaret Gradwell Mains

UNLV Retrospective Theses & Dissertations

The study examined the effects of learning a computer programming language on logical thinking skills, by comparing the logical reasoning skills of students who took a QBasic class with those who took a continuing education computer graphics/desktop publishing class; The study took place during a 14-week period in the fall of 1996. The sample was selected from students enrolled in a QBasic programming language from a community college in Las Vegas, Nevada {dollar}(n=15).{dollar} A desktop publishing/graphics class was the comparison group, selected from the same community college {dollar}(n=15).{dollar} Pretest and posttest scores on the students' logical thinking skills were collected …

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A Survey Of Computer Uses In Music, Maria N Russell Jan 1997

A Survey Of Computer Uses In Music, Maria N Russell

UNLV Retrospective Theses & Dissertations

This thesis covers research into the mathematical basis inherent in music including review of projects related to optical character recognition (OCR) of musical symbols. Research was done about fractals creating new pieces by assigning pitches to numbers. Existing musical pieces can be taken apart and reassembled creating new ideas for composers. Musical notation understanding is covered and its requirement for the recognition of a music sheet by the computer for editing and reproduction purposes is explained. The first phase of a musical OCR was created in this thesis with the recognition of staff lines on a good quality image. Modifications …

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Vertical Equating Of Curriculum-Based Tests In Reading, Mathematics, And Language Arts, Judith Susan Gage Costa Jan 1997

Vertical Equating Of Curriculum-Based Tests In Reading, Mathematics, And Language Arts, Judith Susan Gage Costa

UNLV Retrospective Theses & Dissertations

Vertical equating of a large urban school district's curriculum-based achievement tests for students in grades one through five was performed by using the BILOG-MG software package produced by Zimowski, Muraki, Mislevy, and Bock. This software extends the application of the item response theory (IRT) approach to test analysis to testing situations involving multiple groups BILOG-MG, item parameter estimates were derived using a marginal maximum a posteriori approach in combination with an expectation-maximization algorithm (EM). Estimates of examinee ability were produced using the Bayesian, or expected a posteriori, estimate with a normal prior distribution; Linkage of successive test forms was accomplished …

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Theoretical Study Of Crystal-Amorphous Transition In (111) Silicon, And Oxidation Of (100) Silicon, Suresh Gorantla Jan 1997

Theoretical Study Of Crystal-Amorphous Transition In (111) Silicon, And Oxidation Of (100) Silicon, Suresh Gorantla

UNLV Retrospective Theses & Dissertations

Molecular Beam Epitaxial (MBE) silicon (Si) (111) grown below a certain temperature results in amorphous structure due to the limited surface mobility of atoms for finding the correct epitaxial sites. A theoretical model based on the formation of stacking fault like defects as a precursor to the amorphous transition of the (111)Si layer is developed. The model is simulated based on a stochastic model approach and the results are compared to that of experiments for temperatures in the range of {dollar}500{-}900\sp\circ{dollar}K and growth rate in the range of 0.1-3.0 {dollar}\A/sec.{dollar} The agreement between the results obtained and experimental observations is …

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The Grid Sketcher: An Autocad-Based Tool For Conceptual Design Processes, Brian Martin Gardner Jan 1997

The Grid Sketcher: An Autocad-Based Tool For Conceptual Design Processes, Brian Martin Gardner

UNLV Retrospective Theses & Dissertations

Sketching with pencil and paper is reminiscent of the varied, rich, and loosely defined formal processes associated with conceptual design. Architects actively engage such creative paradigms in their exploration and development of conceptual design solutions. The Grid Sketcher, as a conceptual sketching tool, presents one possible computer implementation for enhancing and supporting these processes. It effectively demonstrates the facility with which current technology and the computing environment can enhance and simulate sketching intents and expectations; Typically with respect to design, the position taken is that the two are virtually void of any fundamental commonality. A designer's thoughts are intuitive, at …

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Sublimation From Snow Packs In Toiyabe National Forest, Nevada And Dixie National Forest, Utah, Stephen M Lawson Jan 1997

Sublimation From Snow Packs In Toiyabe National Forest, Nevada And Dixie National Forest, Utah, Stephen M Lawson

UNLV Retrospective Theses & Dissertations

A study was conducted to measure sublimation rates and concurrent meteorological parameters on snow packs at Kyle Canyon, Nevada; Brian Head, Utah; and Lee Canyon, Nevada. Over 730 individual gravimetric measurements were made using snow lysimeters and over 16,500 individual meteorological measurements were taken. The measured sublimation rates averaged 0.438 mm/day, 0.757 mm/day, and 0.586 mm/day for each site respectively, with a combined average of 0.647 mm/day for all sites. There was little or no correlation between measured sublimation rates and meteorological measurements with the exception of Kyle Canyon. However, the data set from Kyle Canyon was the most limited …

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The Migration Of Arsenic And Lead In Surface Sediments At Three Kids Mine, Henderson, Nevada, Douglas Brian Sims Jan 1997

The Migration Of Arsenic And Lead In Surface Sediments At Three Kids Mine, Henderson, Nevada, Douglas Brian Sims

UNLV Retrospective Theses & Dissertations

This study focused on the distribution of arsenic and lead in surface sediments at Three Kids Mine in Henderson, Nevada. The mine site encompasses approximately 470 acres of desert and is situated above two developing communities (Lake Las Vegas and Calico Ridge) and the Las Vegas Valley's water source (Lake Mead); Transport of arsenic and lead appears to have occurred within a limited range in both the eastern and western washes on the eastern and western sides of Three Kids Mine. Concentrations of arsenic range between 20 mg/kg (ppm) and 1130 mg/kg and between 20 mg/kg and 8400 mg/kg for …

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Low Harmonic Distortion Flash A/D Converters Incorporating Dynamic Element Matching Techniques, Bret David Steadman Jan 1997

Low Harmonic Distortion Flash A/D Converters Incorporating Dynamic Element Matching Techniques, Bret David Steadman

UNLV Retrospective Theses & Dissertations

New dynamic element matching techniques are shown to reduce the harmonic distortion and improve the spurious-free dynamic range of flash ADCs. Resistor chain mismatch errors are negated by randomly rearranging the resistors each sample by utilizing 5(2{dollar}\sp{b}{dollar}-1) digital switches and b + 1 random control signals for a b-bit flash ADC. The integral and differential nonlinearity of a non-ideal flash ADC are derived for three common resistor chain mismatch errors; namely, geometric mismatches, linear gradient mismatches, and dynamic mismatches. The transfer function of a non-ideal flash ADC is also derived and the converter output is shown to consist of a …

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Automatic Clustering And Feedback In Information Retrieval, Girish Venkatachaliah Jan 1997

Automatic Clustering And Feedback In Information Retrieval, Girish Venkatachaliah

UNLV Retrospective Theses & Dissertations

Clustering and feedback have been used in information retrieval to improve the effectiveness of retrieving relevant documents. In this thesis, we investigate the retrieval effectiveness from various document collections in presence of both clustering and feedback. More precisely, we apply a clustering algorithm to an initial run of our queries to choose appropriate clusters for feedback. The clustering and feedback are done automatically.

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Examining Student Perceptions Of The Transitional Services School Counselors Provide To College-Bound Individuals With And Without Learning Disabilities In The Areas Of Self-Awareness, Self-Advocacy, And The Law, Gillian Elisa Wells Jan 1997

Examining Student Perceptions Of The Transitional Services School Counselors Provide To College-Bound Individuals With And Without Learning Disabilities In The Areas Of Self-Awareness, Self-Advocacy, And The Law, Gillian Elisa Wells

UNLV Retrospective Theses & Dissertations

College-bound students with and without learning disabilities were surveyed, to examine their perceptions of the transitional services provided by school counselors in the areas of self-awareness, self-advocacy, and the law. It appears that both groups are receiving some transitional services. Self-Awareness, self-advocacy, and the law are three components that are not covered by school counselors who work with students. In a majority of cases students cite family and other professionals as the only assistance they receive in these areas.

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Robust Dynamic Feedback And Variable Structure Adaptive Control Of Rigid And Flexible Spacecraft, Yueming Zeng Jan 1997

Robust Dynamic Feedback And Variable Structure Adaptive Control Of Rigid And Flexible Spacecraft, Yueming Zeng

UNLV Retrospective Theses & Dissertations

This thesis presents control systems design for control of rigid and flexible spacecraft in the presence of parameter uncertainty and disturbance inputs. Two kinds of control systems are designed for the control of rigid spacecraft. For the design of the first controller, Rodrigues parameters and modified Rodrigues parameters are used to describe the orientation of spacecraft. A dynamic decoupling attitude control law is derived for the tracking of reference attitude trajectories. The singular perturbation theory is used for the stability analysis of the closed-loop system. For the synthesis of the control law, only the attitude error is required. The second …

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Modeling Temporal Variations In Travel Demand For Intelligent Transportation Systems, Srinivas Subrahmanyam Pulugurtha Jan 1997

Modeling Temporal Variations In Travel Demand For Intelligent Transportation Systems, Srinivas Subrahmanyam Pulugurtha

UNLV Retrospective Theses & Dissertations

The imbalance between demand and supply on transportation networks, especially during peak periods, leads to significant level of congestion. Potential solutions to alleviate congestion problems include enhancing system capacity and effective utilization of available capacity--i.e., traffic demand management. Intelligent transportation system (ITS) initiatives such as travel demand management systems (TDMS) and traveler information systems (TIS) refer to demand management as an objective. The success of these initiatives rely heavily on an ability to accurately estimate the temporal variations in travel demand in near real-time. The focus of this dissertation is on developing a methodology for estimating temporal variations in travel …

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Enhancing Commitment In The Workplace : A Qualitative Study Of A Small Financial Business In The Upper Midwest, Ginger K. Johnson Bloms Jan 1997

Enhancing Commitment In The Workplace : A Qualitative Study Of A Small Financial Business In The Upper Midwest, Ginger K. Johnson Bloms

Theses and Dissertations

No abstract provided.

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The Use Of Interactive Television For Instruction In Rural Elementary Schools, Drina Pauline Hansel Jan 1997

The Use Of Interactive Television For Instruction In Rural Elementary Schools, Drina Pauline Hansel

Theses and Dissertations

No abstract provided.

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An Assessment Of Digital Imaging Input And Output Devices In Biomedical Communications Units, Karla J. Glick Jan 1997

An Assessment Of Digital Imaging Input And Output Devices In Biomedical Communications Units, Karla J. Glick

Theses and Dissertations

No abstract provided.

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Integration Of Quality Programs In Selected Job-Shop Companies In Eastern North Dakota, Aaron J. Bahner Jan 1997

Integration Of Quality Programs In Selected Job-Shop Companies In Eastern North Dakota, Aaron J. Bahner

Theses and Dissertations

No abstract provided.

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The Racing Of American Society: Race Functioning As A Verb Before Signifying As A Noun, John A. Powell Jan 1997

The Racing Of American Society: Race Functioning As A Verb Before Signifying As A Noun, John A. Powell

Minnesota Journal of Law & Inequality

Symposium: Our Private Obsession, Our Public Sin

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Experimental Determination Of Heat Transfer And Fluid Flow Over Drift-Emplaced Canisters, Satish Pattisam Jan 1997

Experimental Determination Of Heat Transfer And Fluid Flow Over Drift-Emplaced Canisters, Satish Pattisam

UNLV Retrospective Theses & Dissertations

Drift-emplaced waste canisters are under consideration for the long-term storage of high level spent fuel in the proposed underground repository at Yucca Mountain. These canisters will be placed on pedestals above the floor of the drifts and exchange heat with the walls of the drift and with air circulating through the repository. To assess the requirements of the repository ventilation system, values of the dimensionless convective heat transfer coefficient and the pressure drop across individual canisters were measured in an experimental model of the drift. The results were curve-fitted as functions of the spacing between the canisters and the Reynolds …

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Reno V. Aclu: The Communications Decency Act Hits A Red Light On The Information Superhighway, John M. Beahn Jan 1997

Reno V. Aclu: The Communications Decency Act Hits A Red Light On The Information Superhighway, John M. Beahn

Catholic University Law Review

No abstract provided.

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Long-Term Effects Of Habitat Clustering On Spotted Owl Populations, Matthew R. Seeley Jan 1997

Long-Term Effects Of Habitat Clustering On Spotted Owl Populations, Matthew R. Seeley

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

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The Influence Of Violence Upon Academic Achievement Among African American First Time College Students., Diana F. Kelly Jan 1997

The Influence Of Violence Upon Academic Achievement Among African American First Time College Students., Diana F. Kelly

LSU Historical Dissertations and Theses

This study examined the relationship between early exposure to violence--both personal and community--and the later academic achievement of African American first time college students. The study incorporated several variables that were thought to impinge upon the academic achievement process. Specifically, those variables were divided into several groups: background factors (socioeconomic status, high school academic record, personal and community violence exposure), student characteristics (locus of control, educational aspirations and expectations), and university characteristics (campus safety, academic and social integration). Student achievement was measured by students' expected grade point average, as indicated on a student questionnaire. University administrators, professors, and researchers who …

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Academic Discipline, Mentoring, And The Career Commitment Of Women Faculty., Gloria Tara Nye Jan 1997

Academic Discipline, Mentoring, And The Career Commitment Of Women Faculty., Gloria Tara Nye

LSU Historical Dissertations and Theses

Women continue to be underrepresented as faculty at U.S. universities, especially in the physical sciences and engineering. The belief that only women can adequately serve as role models and mentors for other women may be a roadblock to progress for women in disciplines where they are underrepresented. This study of women faculty investigates how female career commitment is influenced by academic discipline and mentoring. The survey responses of sixty-six tenure-track women faculty were used to obtain data for both science or engineering and non-science or engineering academic disciplines at three public Ph.D. granting research universities. The women faculty in science …

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Development Of Thin Gold Film Thermal Sensors For Synchrotron X-Ray Exposure Diagnostics., Harish M. Manohara Jan 1997

Development Of Thin Gold Film Thermal Sensors For Synchrotron X-Ray Exposure Diagnostics., Harish M. Manohara

LSU Historical Dissertations and Theses

High aspect ratio lithography utilizes high intensity exposure sources, such as synchrotron storage rings, to deposit sufficient dose in the resist to produce a successful pattern transfer. Such highly powerful sources are known to cause undesirable thermal effects in the mask-resist-substrate system. Hence, the measurement of temperature of a mask-resist-substrate system during irradiation is an important exposure diagnostic feature. Deposition of a reasonably accurate dose in the resist is controlled by knowledge of the exposure source intensity. Periodic monitoring of the synchrotron radiation beam power and its spatial distribution at the exposure plane is necessary. In this research, diagnostic techniques …

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Acid Solubilization Of Fish Protein For Production Of Protein Hydrolysate., Ercument Ozer Jan 1997

Acid Solubilization Of Fish Protein For Production Of Protein Hydrolysate., Ercument Ozer

LSU Historical Dissertations and Theses

The mechanism of fish protein solubilization by acid hydrolysis at elevated temperatures was investigated. Rate expressions for the solubilization were determined using pilot scale data with two different rate determination methods. A postulated mechanism was verified and estimated rates were evaluated on five independent verification experiments. A functional relationship between nonprotein byproduct concentration and whiteness of fish protein hydrolysate (FPH) was developed. Initial and set-point operating variables were calculated to produce FPH with acceptable color characteristics for food use. A batch reactor was used for duplicate hydrolysis trials conducted at three acid and three temperature levels for four hours. Samples …

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Negotiating Literacy Instruction: Pedagogical Perceptions Of Secondary Preservice Teachers., Julie Hill Lester Jan 1997

Negotiating Literacy Instruction: Pedagogical Perceptions Of Secondary Preservice Teachers., Julie Hill Lester

LSU Historical Dissertations and Theses

Secondary teachers face the challenge of planning instructional activities that combine their own subject knowledge with information from textbooks and other forms of text to help students learn content material. This study explores preservice teachers' perceptions regarding literacy instruction within the context of teaching and learning content material. The participants are senior secondary education students enrolled in a content area literacy course at a regional university in the southeast. Case studies are constructed for six preservice teachers representing different content areas. Qualitative data collection procedures included a questionnaire, guided journal entries, literacy autobiography, and personal interviews. Cross-case analysis was employed. …

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Feasibility Study On The Reduction Of Hydrostatic Pressure In A Deep-Water Riser Using A Gas-Lift Method., Clovis Antonio Lopes Jan 1997

Feasibility Study On The Reduction Of Hydrostatic Pressure In A Deep-Water Riser Using A Gas-Lift Method., Clovis Antonio Lopes

LSU Historical Dissertations and Theses

Recent successful exploration efforts in deep waters have heightened interest in developing oil and gas reservoirs on the continental slope. Leases have been obtained in water depths up to 10,000 ft with a requirement that they be drilled within the next decade. Use of current techniques to drill these leases will require extremely large floating drilling units and large diameter marine riser systems. This study presents the results of a feasibility study on the use of an automated gas-lift system for a marine riser that will maintain the hydrostatic pressure in the subsea well-head equal to that of the sea …

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The Relationship Of Parenting In Responsibility To A School-Age Child's Locus Of Control., Willie Mae D Jackson Jan 1997

The Relationship Of Parenting In Responsibility To A School-Age Child's Locus Of Control., Willie Mae D Jackson

All ETDs from UAB

No abstract provided.

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The Effects Of Exercise Versus Methylphenidate On Attention And Behavior In Children With Attention Deficit Hyperactivity Disorder, Predominantly Inattentive Type., Lise Marie Becker Jan 1997

The Effects Of Exercise Versus Methylphenidate On Attention And Behavior In Children With Attention Deficit Hyperactivity Disorder, Predominantly Inattentive Type., Lise Marie Becker

All ETDs from UAB

No abstract provided.

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