Digital Commons Network^™

Droplet Coalescence In The Shear Flow Of Model Emulsions, Adam Abdallah Al-Mulla

Graduate Theses, Dissertations, and Problem Reports (ETD)

During the flow of an emulsion, droplets of the dispersed phase can deform, breakup, coalesce or migrate to other regions within the flow field. Understanding these different processes, both individually and jointly, is relevant, for example, to the development of morphology in immiscible liquid-liquid systems such as polymer blends formulated using single screw or twin screw extruders. While deformation and breakup have been well researched for single drops, migration occurs only for concentrated emulsions. In this study, dilute emulsions of silicone oil and castor oil were employed to observe drop coalescence in the absence of drop breakup; flow fields utilized …

Implementation Of Courseware For Internet Delivery, Sohail Ramzan Khan

Graduate Theses, Dissertations, and Problem Reports (ETD)

A process centered environment for implementing courseware is presented. The proposed environment addresses some of the constraints in the existing state of the art technology, presently used for distance education. The environment interface is developed using MS FrontPage 98 web development software. The thesis describes the design and implementation of the environment, which is named WVUCT. WVUCT utilizes MS NetMeeting software as a mode for interacting with the students in many different ways. WVUCT uses MS FrontPage 98 for developing a web-based course. The course web once developed using the environment can be published to any httpd server for student's …

Hydrothermal Aging Of Zeolite-Based Catalysts, Joongjai Panpranot

Graduate Theses, Dissertations, and Problem Reports (ETD)

In this study the RE-USY (Davision GO-40) FCC catalyst, a composite of RE-USY zeolite and alumina-silica gel matrix, was treated hydrothermally under simulated FCC regenerator conditions in a laboratory scale fluidized bed. Fresh and steam-aged catalysts were characterized by surface area reduction using the nitrogen BET and t-Plot surface area methods. The surface morphology was apparent from the scanning electron photomicrographs. An irreversible deactivation kinetic model developed earlier by Gardner.; S0- S/S0 ns=Ks t was applied to account for changes of surface area of the zeolite component as a function of time on stream, temperature and steam partial pressure. The …

Resistance-In-Series Modeling In High-Shear Rotary Ultrafiltration, Ronald L. Vaughan Jr.

Graduate Theses, Dissertations, and Problem Reports (ETD)

Large volumes of spent oil-in-water emulsions are produced in the metal working (MW) industry. In high-shear rotary ultrafiltration (HSR-UF), disk membranes are rotated at speeds up to 1,750 rpm to generate hydraulic turbulence, which scours the membrane surface. Thus, the pump is required only to provide transmernbrane pressure and a small amount of recirculation.;A parametric waste-specific study was conducted to assess the ability of the resistance-in-series (RIS) permeate flux model to predict pressure-flux data collected in the HSR-UF of a synthetic MW fluid. Experiments were conducted using a pilot-scale HSR-UF system with a 0.11 mum average-pore size membrane at a …

Identifying The Type And Appropriateness Of The Evaluations Of Selected Agriculturally Related Science And Technology-Based Usaid Projects Conducted Between 1985 And 1995, Allen E. Bayles

Graduate Theses, Dissertations, and Problem Reports (ETD)

A review of the literature indicated that baseline data that described how and what were being evaluated at the project level by agencies involved in third world development had not been published. This was a descriptive study using content analysis of the available evaluative reports for the USAID projects involved with the transfer of agriculturally-related technology identified in the National Science Foundation research project, Assessing the Literature on the Benefits of External Science and Technology Aid Assistance to Developing Countries (Pytlik, Vasudevan, Bayles & Spitznogle, 1997).;The research concludes that impact evaluations were not being conducted at the project level. While …

Perceptions Of Supervisory Behaviors And Supervisory Needs Among Licensed Speech-Language Pathology Assistants, Jean Suzanne Mead

Graduate Theses, Dissertations, and Problem Reports (ETD)

The purpose of this study was to identify supervisory behaviors that occurred and the extent to which they were perceived as necessary during supervisory interactions between licensed speech-language pathology assistants (SLPAs) and their supervising speech-language pathologists (SLPs). Surveys were mailed to the 173 licensed SLPAs in Louisiana, who were the population for this study, requesting information about the supervision received. Eighty-eight (51%) completed and returned the survey.;The survey consisted of three parts. Part I contained 29 statements that were each rated twice using a Likert-type scale. The first rating indicated the extent to which supervisory behaviors occurred and the second …

Determining Perspectives Of Selected Disciplines Concerning The Nature Of Technology Within Classic Literature, Bryan Calvin Maser

Graduate Theses, Dissertations, and Problem Reports (ETD)

The purpose of this research was to identify if there was a significant difference between the perspectives of selected disciplines with regard to the nature and history of technology. A content analysis of classic literature from multiple disciplines to determine perspectives concerning the nature of technology served as a basis for the development of a general semantic differential instrument. The instrument was administered to a given population yielding a conceptual scoring of perspectives. Scored concepts were then cross referenced to respective disciplines to determine if the degree of difference between disciplines was statistically significant.

Local Damage Analysis Of Fiber -Reinforced Polymer Matrix Composites, Arsenio Domingo Caceres

Graduate Theses, Dissertations, and Problem Reports (ETD)

While it is widely recognized that failure occurs as a result of damage accumulation, characterization of composite material behavior is currently limited to obtaining the elastic properties and the strength values. With such information, it is not possible to assess the remaining life of a structural component or to estimate the likelihood of failure as a function of the time in service. The present investigation concerns the development of a continuum damage mechanics (CDM) formulation for polymer-matrix composites assuming the damage accumulates in the matrix, fiber, and fiber-matrix interphase regions. A local approach was taken by dividing the analysis of …

Study On The Estimation And Control Of A Liquid Composite Molding Process, Dennis Sourlas, Susmito Naha, Gary Patterson, Richard Parnas

Chemical and Biochemical Engineering Faculty Research & Creative Works

An on-line nonlinear receding horizon control algortithm is employed in order to achieve setpoint tracking targets in the context of liquid composite molding processes. The robustness of this control strategy against process-model deviations is tested. Finally, recursive parameter estimation is employed as a means of actively enhancing the performance of the process control algorithm. © 1998 AACC.

Table Of Contents

Seton Hall Journal of Sports and Entertainment Law

No abstract provided.

Analysis Of Civil And Criminal Penalties In Athlete Agent Statutes And Support For The Imposition Of Civil And Criminal Liability Upon Athletes., Rob Remis

Seton Hall Journal of Sports and Entertainment Law

No abstract provided.

Dispute Resolution In Olympic Sport: The Court Of Arbitration For Sport, Nancy K. Raber

Seton Hall Journal of Sports and Entertainment Law

No abstract provided.

National Hockey League Jurisprudence: Past, Present And Future, Thomas J. Arkell

Seton Hall Journal of Sports and Entertainment Law

No abstract provided.

Completing The Revolution: Title Ix As Catalyst For An Alternative Model Of College Sports, Brian L. Porto

Seton Hall Journal of Sports and Entertainment Law

No abstract provided.

Must Kobe Come Out And Play? An Analysis Of The Legality Of Preventing High School Athletes And College Underclassmen From Entering Professional Sports Drafts, Scott R. Rosner

Seton Hall Journal of Sports and Entertainment Law

No abstract provided.

Suffering In Silence: Should They Be Cheered Or Feared? (Mandatory Hiv Testing Of Athletes As A Health And Safety Issue), Anthony Dimaggio

Seton Hall Journal of Sports and Entertainment Law

No abstract provided.

The Confidentiality Of Ncaa Investigation Files: A Policy Worthy Of Protection, Kevin Macgillivray

Seton Hall Journal of Sports and Entertainment Law

No abstract provided.

Disabled Athletes: A Last Vestige Of Court Tolerated Discrimination?, Eldon L. Ham

Seton Hall Journal of Sports and Entertainment Law

No abstract provided.

Investigation Of Peptide-Dna Interactions: Synthesis, Characterization And Applications Of Lysyl-Fluorophenylalaninamides, Teresita T. Ortega

Seton Hall University Dissertations and Theses (ETDs)

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A Comparison Of The Effects Of Moderate- And High-Carbohydrate Diets On Coronary Heart Disease Risk Factors: A Pilot Study, Margaret Helen Fernandez, Julia Ava Niehaus Soper

Theses and Dissertations - UTB/UTPA

This pilot study compared the effects of two diets on total cholesterol to high- density lipoprotein cholesterol ratio, body mass index, and waist circumference. A diet of 15% protein, 55% or more carbohydrate, and 30% or less fat was compared to a diet of 30% protein, 40% carbohydrate, and 30% fat. Lipid levels and anthropometric measurements were obtained on 18 adult males with moderately elevated lipid levels before and after 12 weeks of dietary intervention. Analyses showed variances between and within the study groups in the areas of anthropometric measurements and lipid levels; no statistically significant differences between the groups …

Using Dabrowski's Overexcitabilities To Identify Gifted Students And Augment Their Gifted Potential, Sande Kristiansen-Hagne

Theses and Dissertations - UTB/UTPA

This study was to examine the potential for using Dabrowski's theory of overexcitabilities as an alternative method for identifying gifted students and augmenting development of gifted potential in students. Specifically, in what ways can Dabrowski's psychic overexcitabilities and Theory of Developmental Potential be used to find and serve the educational and emotional needs of the residual group of unidentified and unserved gifted students?

Educational implications and strategies are suggested and discussed. Pedagogic and curricular strategies that utilize the interactive nature of Dabrowski's psychic overexcitabilities and emotional development are examined. The benefit of development of an instrument to measure overexcitabilities at …

Online Networks In Institutions Of Higher Education: An Assessment Of Student Use, Norbaiduri Ruslan

Masters Theses

Online networks in university campuses are expected to enhance the learning process, an argument founded on the theories of Cognitive Apprenticeship, Situated Cognition, and Social Constructivism. However, the extent to which students use these networks should be a significant predictor of such benefits.

This study investigated the patterns of use of online networks in universities with a survey administered to 299 students enrolled in a random sample of undergraduate classes at Western Michigan University during the summer semester of 1998.

The findings show extensive use of email and the World Wide Web for activities that arguably benefit their education. Other …

Fractal Analysis Of Topography And Structure Across The Appalachian Foreland Of West Virginia, Ashley Shannon Burns Douds

Graduate Theses, Dissertations, and Problem Reports (ETD)

Fractal analysis was conducted on topographic relief and seismic reflection travel time data in the state of West Virginia to determine the potential influence of subsurface structure on surface topography. Seismic travel-times digitized from two east-west seismic profiles and topographic relief extracted in north-south and west-east directions from a 1:250,000 Digital Elevation Model (DEM) for the entire state were used in the analysis. A limited local study was also conducted of hand-drawn topographic profiles extracted from U.S.G.S. 1:24,000 topographic quadrangles over the Cottageville gas field in western West Virginia. This study also incorporated extraction of profiles in the same location …

Scale And Texture In Digital Image Classification, Christopher John Sebastian Ferro

Graduate Theses, Dissertations, and Problem Reports (ETD)

This thesis is a theoretical and empirical study on textural properties of digital images. Spatial information exists at a hierarchy of scales and texture is a consequence of the objects in that hierarchy. Within-class texture results from the spatial arrangement of objects at the next finer level in the hierarchy than the informational class. Between-class texture results from spectral differences between adjacent classes and is most obvious near class edges, especially for smooth classes. In rough classes between-class variance may not differ much from within-class variance. Errors in classifications using texture, therefore, are most likely associated with, class edges; however, …

Perturbation Studies Of Excitable Media, Lisa Elizabeth Seagraves

Graduate Theses, Dissertations, and Problem Reports (ETD)

Poly(N-isopropylacrylamide) (PNIPA) based systems are probably the most often studied polymer gels due to their dramatic change in volume, swelling and deswelling. Since this system has the best response to pH between 4 and 7, the ferrocyanide-iodate-sulfite (FIS) reaction, which exhibits pH oscillations between 4 and 7.5 in a continuously stirred tank reactor (CSTR), is a good candidate for studies of oscillatory gel systems.;This work also focused on two dynamical phenomena in the ruthenium catalyzed Belousov-Zhabotinsky (BZ) reaction. One is self-organized criticality and the other is periodic forcing and how they can be studied with the BZ reaction. Self-organized criticality …

Crisis Communication And Organizational Image: A Study Of The Nasa Challenger And Exxon Valdez, Amy O'Connor

Masters Theses

This study examines the communication activities of two crises: the NASA Challenger and Exxon Valdez and investigates the effect of accommodative and defensive statements attributable to each crisis on organizational image. The survey design queried respondents about organization image with questions about trustworthiness, responsibility and willingness for future involvement with the organization, based on statements provided. Results indicated that when organizations issue accommodative statements during a crisis, participants rated overall organizational image more positively than when defensive statements were given. Research findings are discussed based on the symbolic approach to crisis communication and the investor response theory. The implications for …

Spatial And Temporal Variations Of Cloud-To-Ground Lightning In Southern Michigan, Michael A. Crimmins

Masters Theses

Lightning has a profound impact on many aspects of modern day society. Understanding its temporal and spatial distributions is fundamental in learning to coexist with its destructive power. This study surveyed the spatial and temporal distribution of cloud-to-ground lightning over southern Michigan using data provided by the Detroit Edison Company. Flash density and 'lightning day' maps were produced for every year of the 1985 to 1995 study period and then averaged to determine long term trends. A temporal analysis determined the distribution of lightning from the inter-annual down to the diurnal scale.

The spatial analysis indicates both deficiencies in the …

Application Of The Paleomagnetic Fold Test To Determine The Relative Timing Of Sill Intrusion And Deformation In The Southwest Helena Salient, Montana, Stephen Christopher Whisner

Masters Theses

The Doherty Mountain fold complex is a highly folded and faulted region along the southern boundary of the Helena Salient in southwestern Montana. This region has a complex deformation history that is a key to deformation within the Helena Salient as a whole. A structural interpretation of the deformed rocks of this area was conducted using field mapping and cross section construction at 1:24,000 scale providing insight to the internal deformation processes involved. Fourteen folds and three major faults were mapped and analyzed showing the influence of the Southwest Montana Transverse Zone and late stage detachment faulting on fold orientation. …

Separation And Determination Of Monochlorophenols By Capillary Zones Electrophoresis, Zarina Yasmin Banu

Masters Theses

Chlorine has been widely used in industry. One of the most common uses of chlorine is in municipal water treatment plants. Chlorine reacts with a variety of organic compounds, among these are phenol and its derivatives which are commonly found in natural waters. When these compounds react with chlorine, a variety of chlorine substituted and oxidized products result depending on concentrations, pH, and temperature. In order to study these reactions it is necessary to separate and determine the various products produced.

Earlier studies have shown 3-chloro and 4-chlorophenol cannot be separated by commercial GLC columns. GC/MS (electron impact) measurements cannot …

Synthesis, Characterization And Photophysical Behavior Of A Cr(Iii) Bimetallic System, Yan Chen

Masters Theses

Many binuclear transition metal complexes have been studied to understand the nature of interactions between the metal centers. People have found Simultaneous Pair Excitation phenomenon in some bimetallic system that can serve as a potential source of Non-Linear Optical behavior.

Thus a series of Cr₂ -([14]aneN₄)₂-X₄ⁿ⁺ complexes were synthesized and characterized. Only the cis,cis configuration was found. The results were compared with those of their monomer analogs. The electronic structures are very similar in both monomer and dimer complexes. The quantum yield, UV-Vis absorption and lifetime studies suggested a possible coupling between the …