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1999

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Texpert: Expert System For Evaluating Product Design For Worker's Safety And Health., Vikram V. Venneti Jan 1999

Texpert: Expert System For Evaluating Product Design For Worker's Safety And Health., Vikram V. Venneti

Graduate Theses, Dissertations, and Problem Reports (ETD)

Today, there is an increasing emphasis on the safety and health of a worker. Optimum resources are invested to ensure worker's safety. Most of the regulations, and other measures as suggested by NIOSH, OSHA and other leading safety organizations concentrate towards the steps that a worker needs to take to use a product safely. Instead, if the product itself is designed to be safe, and if the manufacturer of the product knows about the product's safety before usage, it would reduce a great deal of wastage of resources. This research is an attempt to implement the above ideology. The objective …

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The Effects Of Thinning Intensity On Snag And Cavity Tree Abundance In An Appalachian Hardwood Stand., Aaron T. Graves Jan 1999

The Effects Of Thinning Intensity On Snag And Cavity Tree Abundance In An Appalachian Hardwood Stand., Aaron T. Graves

Graduate Theses, Dissertations, and Problem Reports (ETD)

Traditional silvicultural practices focus on manipulating forest vegetation structure for commodity production. Structural features important to wildlife, such as snags, trees with decay, and cavity trees are also affected by forest management, but these effects are often not quantified. This study measured the effects of different thinning intensities (45, 60, 75% residual relative densities, and uncut controls), heartwood decay resistance (resistant, slight), and time of formation (pre or post-treatment) on the density, basal area, and volume of snags and decayed wood in an Appalachian hardwood stand. Cavity trees considered useful to local woodpecker species were also measured. Results indicated that …

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An Investigation Of Complex Formation By The Drosophila Circadian Clock Protein Double-Time And The Effects Of The Double-TimeS Mutation On Complex Formation., Madhavi Kalive Jan 1999

An Investigation Of Complex Formation By The Drosophila Circadian Clock Protein Double-Time And The Effects Of The Double-TimeS Mutation On Complex Formation., Madhavi Kalive

Graduate Theses, Dissertations, and Problem Reports (ETD)

The double-time ( dbt) gene in Drosophila encodes a protein (DBT) related to casein kinase I.This thesis examines whether DBT associates with other proteins besides PER, and whether the association of DBT might change as a function of time of day and genotype in vivo. DBT binds in vitro to several parts of PER and TIM, and to the N terminal of DBT. At all times of day in vivo, a significant fraction of DBT sediments with a molecular weight greater than that of its monomer. In dbtS flies, DBTS may associate more effectively than wild type DBT with other …

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The Effect Of The Electrode Composition On Electron Transfer Through An Electroactive Monolayer., Kwansik Yoon Jan 1999

The Effect Of The Electrode Composition On Electron Transfer Through An Electroactive Monolayer., Kwansik Yoon

Graduate Theses, Dissertations, and Problem Reports (ETD)

This thesis describes the development of methods for determining the rate constants between a single type of an electroactive self-assembled monolayer on four metals: Au, Pt, Ag, and Hg. Marcus density-of-states theory predicts that the standard rate constant is proportional to the density of states (DOS) of the metal. The DOS increases by a factor of ten for the four metals above. Tafel plots are obtained from which the standard rate constant and the reorganization energy are extracted. Within experimental uncertainty, the standard rate constant is the same on Au, Pt, and Ag. Surprisingly, the reorganization energy is half as …

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"No Matter Where You Go, There You Are" But How Do We Find You? Location Determination Technologies For Cellular Enhanced 9-1-1 Service., Wendy Sue Geary Jan 1999

"No Matter Where You Go, There You Are" But How Do We Find You? Location Determination Technologies For Cellular Enhanced 9-1-1 Service., Wendy Sue Geary

Graduate Theses, Dissertations, and Problem Reports (ETD)

Recently there has been an explosive growth in the use of cellular telephones. Many people purchase "cell phones" specifically for the safety factor, expecting the same type of Enhanced 911 service they receive from landline phones. However, the only 911 service currently available for cellular callers in most areas is Basic 911, which means that emergency response time may be less than optimal. A recent Federal Communications Commission regulation promotes the provision of Enhanced 911 service for wireless customers. A key component of this Enhanced service is "Automatic Location Information" ("ALI"), a computerized report of caller location that allows calls …

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The Ecg Signal Processing By Adsp-21062 Digital Signal Processor., Limin Wang Jan 1999

The Ecg Signal Processing By Adsp-21062 Digital Signal Processor., Limin Wang

Graduate Theses, Dissertations, and Problem Reports (ETD)

About 350,000 people die each year due to sudden cardiac death. The use of the Implantable Cardioverter / Defibrillator (ICD) makes it possible for an emergency defibrillation system to be always available to those patients that in high risk of sudden cardiac death. For this kind of technique, real-time detection and identification of arrhythmia automatically is important. Detection of arrhythmia usually involves complex algorithmic calculations, reducing the ability to provide immediate therapy. In this project, Analog Device’s ADSP-21062 digital signal processor is introduced as a candidate for the main processor of ICD. Cross-correlation, a method for detecting arrhythmias, is used …

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The Application Of Finite Difference Method And Matlab In Engineering Plates., Bohe Wang Jan 1999

The Application Of Finite Difference Method And Matlab In Engineering Plates., Bohe Wang

Graduate Theses, Dissertations, and Problem Reports (ETD)

The biharmonic equation is used to model the deflections arising in two dimensional rectangular orthotropic symmetric laminate plates. The plate can be subjected to external perpendicular forces and one is interested in the resulting deflections. Various boundary conditions can be applied to the problem. The edges can be simply supported, clamped, or free. In this work, an automatic procedure is defined which produces the difference equations for each edge boundary case. The procedure is illustrated, using MATLAB, with numerical results for problems with and without exact analytical solutions.

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Neural Networks For Control Signal Reconstruction In Non-Linear Systems With An Application To Aircraft Dynamics., Stelios Pantelis Pispitsos Jan 1999

Neural Networks For Control Signal Reconstruction In Non-Linear Systems With An Application To Aircraft Dynamics., Stelios Pantelis Pispitsos

Graduate Theses, Dissertations, and Problem Reports (ETD)

In recent years, general, commercial and military aviation has been plagued by the occurrence of several crashes, in which faulty control surfaces appeared to be the cause, or one of the possible causes. Typically, the National Transportation and Safety Board (NTSB) begins its investigation by analyzing the wreckage along with the flight data recorder (FDR) and cockpit voice recorder (CVR). In most instances this combination of information is enough for the NTSB to discover the cause of the crash, but unfortunately this is not always the case. From this the argument can be made that there is a need for …

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The Evolution Of Adult Literacy For Learners With Special Needs., Susie A. Huggins Jan 1999

The Evolution Of Adult Literacy For Learners With Special Needs., Susie A. Huggins

Graduate Theses, Dissertations, and Problem Reports (ETD)

This thesis looks at the evolution of adult education over the last 340 years and includes a discussion on Moonlight Schools and Operation Alphabet. The educational abilities of men and women are discussed. The evolution of adult education is reviewed through the legislation that effected the school system. The history of Literacy Volunteers of America (LVA) and the role of the Monongalia County LVA affiliate are reviewed. A survey of the MCLVA is conducted to research educational attainment of parents, adult learners and children of adult learners. Finally, the WV driver’s license exam process is reviewed. Many adult learners have …

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The Bond Of An Enduring Relationship: United States-China Scientific Relations, 1949-1989., Yuegen Yu Jan 1999

The Bond Of An Enduring Relationship: United States-China Scientific Relations, 1949-1989., Yuegen Yu

Graduate Theses, Dissertations, and Problem Reports (ETD)

Science has long been a principle driving force in United States-China relations. It has served as the lasting bond of the two countries, enduring but often turbulent relationship. This dissertation is a study of the development of United States scientific relations with the People's Republic of China (PRC) from 1949 to 1989. Science was a key element in America's historical “special relationship” with China. The rich tradition of Sino-American scientific cooperation dated back to the 1840s. From the establishment of the PRC in 1949 to the Sino-American rapprochement in 1972, despite inactivity in scientific discourse between the two countries as …

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Performance Surface Prediction For Wan-Based Clusters, Mark J. Clement, J. Kelly Flanagan, Glenn M. Judd, Bryan S. Morse, Joy L. Peterson Jan 1999

Performance Surface Prediction For Wan-Based Clusters, Mark J. Clement, J. Kelly Flanagan, Glenn M. Judd, Bryan S. Morse, Joy L. Peterson

Faculty Publications

The last five years have been a period of exponential growth in the number of machines connected to the Internet and the speed at which these machines communicate. The infrastructure is now in place to consider a nationwide cluster of workstations as a viable parallel processing platform. In order to achieve acceptable performance on this kind of a machine, performance prediction tools must provide information on where to place computational objects. Incorrect object placement can result in poor performance and congestion in the network. This research develops a new paradigm for predicting performance in the Wide Area Network (WAN) based …

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Functional Analysis: An Application To Mother-Infant Interactions., Karen Lynn Weigle Jan 1999

Functional Analysis: An Application To Mother-Infant Interactions., Karen Lynn Weigle

Graduate Theses, Dissertations, and Problem Reports (ETD)

Mother-infant interactions were investigated to: (a) determine the feasibility of simultaneously conducting functional analyses on two individuals' behaviors in an unstructured setting; (b) compare functional analysis results across the Motivational Assessment Scale (MAS), Functional Assessment Interview Form (FAIF), and videotaped observational data analyzed using conditional probabilities (CP); and (c) compare parenting stress and social support, and infant developmental level with patterns of interaction. Twenty-one mother-infant dyads, nine with developmental delays (DD), having infants between 12 and 36 months of age participated. Five home visits were conducted. In the first, mothers completed a questionnaire and interview regarding their infants' challenging behavior. …

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The Effects Of A Preschool Movement Program On Motor Skill Acquisition, Movement Concept Formation, And Movement Practice Behavior., Darren Luke Robert Jan 1999

The Effects Of A Preschool Movement Program On Motor Skill Acquisition, Movement Concept Formation, And Movement Practice Behavior., Darren Luke Robert

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study examined the effects of participation in a parent-involved movement instruction program, on the skill acquisition, concept formation, and movement practice behavior of preschool children. The research questions asked “What is the effect”: (1) of a nine week instructional program that emphasizes motor skills and movement concepts for parents and their preschool children on motor skill acquisition and movement concept demonstration of preschool children? (2) that parents as teachers have on the motor skill acquisition and movement concept formation of preschool children? (3) of enrolling in a nine-week movement program more than once on the acquisition of motor skills …

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A Study Of Teachers' Confidence Levels Toward Meeting The Computer Technology Instructional Objectives Of The West Virginia Dept. Of Education., Cathy Jo Rotunda Jan 1999

A Study Of Teachers' Confidence Levels Toward Meeting The Computer Technology Instructional Objectives Of The West Virginia Dept. Of Education., Cathy Jo Rotunda

Graduate Theses, Dissertations, and Problem Reports (ETD)

The purpose of this study was to examine factors that would have an impact on training development for an established workforce facing reform initiatives. A two-part literature section includes an examination of existing research from educational theory, memory research, adult development theory, cognitive psychology, organizational, industrial, and personnel psychology, and instructional design models. The result is a set of guidelines for the training program developer who is concerned about implementation of reform strategies and resistance-to-change issues. The target workforce for this study was the West Virginia public school teacher. The reform initiative was the introduction of computer technology into the …

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The Effects Of Learning Geometry Using A Computer-Generated Automatic Draw Tool On The Levels Of Reasoning Of College Developmental Students., Lalah W. Larew Jan 1999

The Effects Of Learning Geometry Using A Computer-Generated Automatic Draw Tool On The Levels Of Reasoning Of College Developmental Students., Lalah W. Larew

Graduate Theses, Dissertations, and Problem Reports (ETD)

The following study investigated the cognitive growth of college developmental geometry students enrolled in a one-semester course in introductory Euclidean Geometry. A quasi-experimental research design was used to determine if changes in cognitive growth occurred when students used a computer-generated automatic draw tool as an instructional aid. The subjects were a control group of 36 community-college students who learned geometry in a lecture-based formal and 27 students from the same college who learned geometry by using the automatic draw tool, GeoExplorer , for one-third of their instructional time. The van Hiele Theory of levels of thought in geometry was used …

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The Effect Of Postorganizers On Mathematics Achievement Following Lectures., Karen E. Mitchell Jan 1999

The Effect Of Postorganizers On Mathematics Achievement Following Lectures., Karen E. Mitchell

Graduate Theses, Dissertations, and Problem Reports (ETD)

This experiment examined the impact of an enhanced graphic postorganizer on the amount of learning and retention college students realized from mathematics lectures given during a full semester. The study was a quasi-experiment in which intact classes of intermediate algebra students with similar mathematical backgrounds either completed the written postorganizer developed for the experiment after each lecture or took a quiz over the same lecture. The postorganizer emphasized concepts, definitions, relationships and student-developed explanations rather than procedures. The planned difference among the groups was the amount of involvement that the students had with the postorganizer. Students in the four groups …

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The Influence Of Racial Identity Development And Locus Of Control On The Career Self-Efficacy Of African-American Adolescents., Melanie Coleman Cosby Jan 1999

The Influence Of Racial Identity Development And Locus Of Control On The Career Self-Efficacy Of African-American Adolescents., Melanie Coleman Cosby

Graduate Theses, Dissertations, and Problem Reports (ETD)

Racial identity and locus of control are two constructs likely to have a significant impact on career self-efficacy (beliefs about one's ability to successfully perform in a given career). This study examines the influence of racial identity attitudes (as measured by the Racial Identity Attitude Scale-B) and locus of control (as measured by the Internal, Powerful Others, and Chance scales) on the career choice patterns and aspirations of African American adolescents (N = 101). It was predicted that gender differences would emerge in the expression of racial identity attitudes, locus of control, and career self-efficacy (as measured by the Career …

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Risk Based Capital Requirements And The United States Loan Market., Sudip Ghosh Jan 1999

Risk Based Capital Requirements And The United States Loan Market., Sudip Ghosh

Graduate Theses, Dissertations, and Problem Reports (ETD)

This dissertation examines the effect of risk-based capital (RBC) requirements were introduced to the U.S. banking industry in the early 1990s and its influence on bank loans. A great deal of work has been spent on issues surrounding the credit crunch. Now the question is whether it is a coincidence of some kind that implementation of RBC requirements and the credit crunch happened around the same time or whether RBC requirements resulted in the credit crunch. Another issue is whether the impact of RBC requirements on U.S. bank lending behavior is permanent or temporary. The research focuses on the theoretical …

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The Effect Of Graphing Calculators On College Students' Ability To Solve Procedural And Conceptual Problems In Developmental Algebra., Mark Andrew Shore Jan 1999

The Effect Of Graphing Calculators On College Students' Ability To Solve Procedural And Conceptual Problems In Developmental Algebra., Mark Andrew Shore

Graduate Theses, Dissertations, and Problem Reports (ETD)

The purpose of this study was to investigate the effect of the graphing calculator (namely the Casio 9850 or the TI-85) on college students' procedural skills and conceptual understanding in two different developmental mathematics courses. The developmental mathematics college courses that were used in this study were Elementary Algebra and Intermediate Algebra. For this study, both the non-graphing calculator group and the graphing calculator group were taught with the same goals. The students in the graphing calculator groups were allowed to use the graphing calculator in place of performing paper and pencil procedures in class and on all tests. Students …

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Motivational Characteristics Of Poor Readers: Evidence For Positive Change., Joan Marie Henderson Jan 1999

Motivational Characteristics Of Poor Readers: Evidence For Positive Change., Joan Marie Henderson

Graduate Theses, Dissertations, and Problem Reports (ETD)

Early reading experiences strongly influence a student's feelings of competence and motivation. Encounters with failure may lead to anxiety, limited effort, and negative responses that affect future performance. Therefore, instruction that fosters motivational factors and emphasizes success is critical, particularly when literacy attainment has not occurred. The interactive model of reading involves a balance between affective, cognitive, and social aspects of literacy engagement important for motivation. The purpose of this study was to examine the nature of how children who had failed to read responded to an interactive model of literacy instruction. The research conducted used qualitative methods and case …

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Korean Child-Rearing Practices In The United States: An Ethnographic Study On Korean Immigrants In The Cultural Transition, Yoon Sun Lee Jan 1999

Korean Child-Rearing Practices In The United States: An Ethnographic Study On Korean Immigrants In The Cultural Transition, Yoon Sun Lee

Master's Theses

Digitized thesis

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A Comparison Of Problem-Centered Learning Model And Guided-Practice Model On High-School Students' Mathematics Performance And Attitude, Samer G. Malouf Jan 1999

A Comparison Of Problem-Centered Learning Model And Guided-Practice Model On High-School Students' Mathematics Performance And Attitude, Samer G. Malouf

Master's Theses

Digitized thesis

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Limitation Of Algal Growth By Iron Deficiency In The Australian Subantarctic Region, Peter N. Sedwick, Giacomo R. Ditullio, David A. Hutchins, Philip W. Boyd, F. Brian Griffiths, A. Clive Crossley, Thomas W. Trull, Bernard Queguiner Jan 1999

Limitation Of Algal Growth By Iron Deficiency In The Australian Subantarctic Region, Peter N. Sedwick, Giacomo R. Ditullio, David A. Hutchins, Philip W. Boyd, F. Brian Griffiths, A. Clive Crossley, Thomas W. Trull, Bernard Queguiner

OES Faculty Publications

In March 1998 we measured iron in the upper water column and conducted iron- and nutrient-enrichment bottle-incubation experiments in the open-ocean Subantarctic region southwest of Tasmania, Australia. In the Subtropical Convergence Zone (∼42°S, 142°E), silicic acid concentrations were low (< 1.5μM) in the upper water column, whereas pronounced vertical gradients in dissolved iron concentration (0.12-0.84 nM) were observed., presumably reflecting the interleaving of Subtropical and Subantarctic waters, and mineral aerosol input. Results of a bottle-incubation experiment performed at this location indicate that phytoplankton growth rates were limited by iron deficiency within the iron-poor layer of the euphotic zone. In the Subantarctic water mass (∼46.8°S, 142°E), low concentrations of dissolved iron (0.05-0.11nM) and silicic acid (< 1μM) were measured throughout the upper water column, and our experimental results indicate that algal growth was limited by iron deficiency. These observations suggest that availability of dissolved iron is a primary factor limiting phytoplankton growth over much of the Subantarctic Southern Ocean in the late summer and autumn.

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Resource Allocation And Sucrose Mobilization In Light Limited Eelgrass Zostera Marina, Teresa Alcoverro, Richard C. Zimmerman, Donald G. Kohrs, Randall S. Alberte Jan 1999

Resource Allocation And Sucrose Mobilization In Light Limited Eelgrass Zostera Marina, Teresa Alcoverro, Richard C. Zimmerman, Donald G. Kohrs, Randall S. Alberte

OES Faculty Publications

This study evaluated the ability of Zostera marina L. (eelgrass) to balance the daily photosynthetic deficit by mobilization of carbon reserves stored in below-ground tissues during a period of extreme winter light limitation. A quantitative understanding of the mobilization process and its limitations is essential to the development of robust models predicting minimum light levels required to maintain healthy seagrass populations. Plants were grown in running seawater tanks under 2 light regimes. One treatment was provided with 2 h irradiance-saturated photosynthesis (Hsat) to produce severe Light Limitation, while control plants were grown under 7 h Hsat, …

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Precedential Cascades: An Appraisal, Eric Talley Jan 1999

Precedential Cascades: An Appraisal, Eric Talley

Faculty Scholarship

About a half century ago, a handful of social scientists began to formalize what was to become the analytical heart of neoclassical economics. Under the broad rubric of "general equilibrium theory," these scholars demonstrated (in varying degrees of mathematical sophistication) the longstanding intuition behind the so-called "invisible hand": that is, that competitive markets could convert apparent disarray and fragmentation into order and harmony. More explicitly, general equilibrium theory demonstrated how a decentralized collection of self-interested individuals could, through competitive market transactions, allocate scarce goods and services in a socially efficient manner. An equally powerful corollary attended this central insight: that …

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Rapid Single- And Multiple-Scattering Exafs Debye-Waller Factor Calculations On Active Sites Of Metalloproteins, Nicholas Dimakis, M-Ali Al-Akhras, Grant Bunker Jan 1999

Rapid Single- And Multiple-Scattering Exafs Debye-Waller Factor Calculations On Active Sites Of Metalloproteins, Nicholas Dimakis, M-Ali Al-Akhras, Grant Bunker

Physics & Astronomy Faculty Publications

This paper describes recent results using our approach to calculating self-consistently single (SS) and multiple-scattering (MS) Debye- Waller factors (DWF) on active sites of metalloproteins. The calculation of MS DWF, together with the Feff7 program allows us to simulate ab-initio EXAFS spectra for a given temperature systems with no adjustable parameters. In our latest report (Dimakis N., and Bunker G., 1998) we calculate, using density functional and semiempirical approaches, the SS and MS DWF for small molecules and compared them to Raman, infrared and EXAFS spectra. In this report calculation of DWFs is done for tetrahedral Zn imidazole, a complex …

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Polymer Depletion Effects Near Mesoscopic Particles, Andreas Hanke, E. Eisenriegler, S. Dietrich Jan 1999

Polymer Depletion Effects Near Mesoscopic Particles, Andreas Hanke, E. Eisenriegler, S. Dietrich

Physics & Astronomy Faculty Publications

The behavior of mesoscopic particles dissolved in a dilute solution of long, flexible, and nonadsorbing polymer chains is studied by field-theoretic methods. For spherical and cylindrical particles the solvation free energy for immersing a single particle in the solution is calculated explicitly. Important features are qualitatively different for self-avoiding polymer chains as compared with ideal chains. The results corroborate the validity of the Helfrich-type curvature expansion for general particle shapes and allow for quantitative experimental tests. For the effective interactions between a small sphere and a wall, between a thin rod and a wall, and between two small spheres, quantitative …

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Observational Limit On Gravitational Waves From Binary Neutron Stars In The Galaxy, B. Allen, J. K. Blackburn, J. D. Creighton, Teviet Creighton Jan 1999

Observational Limit On Gravitational Waves From Binary Neutron Stars In The Galaxy, B. Allen, J. K. Blackburn, J. D. Creighton, Teviet Creighton

Physics & Astronomy Faculty Publications

Using optimal matched filtering, we search 25 hours of data from the LIGO 40-m prototype laser interferometric gravitational-wave detector for gravitational-wave chirps emitted by coalescing binary systems within our Galaxy. This is the first test of this filtering technique on real interferometric data. An upper limit on the rate R of neutron star binary inspirals in our Galaxy is obtained: with 90% confidence, R<0.5h−1. Similar experiments with LIGO interferometers will provide constraints on the population of tight binary neutron star systems in the Universe.

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Detecting An Association Between Gamma Ray And Gravitational Wave Bursts, Lee Samuel Finn, Soumya Mohanty, Joseph D. Romano Jan 1999

Detecting An Association Between Gamma Ray And Gravitational Wave Bursts, Lee Samuel Finn, Soumya Mohanty, Joseph D. Romano

Physics & Astronomy Faculty Publications

If γ-ray bursts (GRBs) are accompanied by gravitational wave bursts (GWBs) the correlated output of two gravitational wave detectors evaluated in the moments just prior to a GRB will differ from that evaluated at other times. We can test for this difference without prior knowledge of either the GWB wave form or the detector noise spectrum. With a model for the GRB source population and GWB spectrum we can put a limit on the in-band rms GWB signal amplitude. Laser-Interferometer Gravitational Wave Observatory I detector observations coincident with 1000 GRB observations could lead us to exclude with 95% confidence associated …

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Critical Adsorption On Curved Objects, Andreas Hanke, S. Dietrich Jan 1999

Critical Adsorption On Curved Objects, Andreas Hanke, S. Dietrich

Physics & Astronomy Faculty Publications

A systematic field-theoretical description of critical adsorption on curved objects such as spherical or rodlike colloidal particles immersed in a fluid near criticality is presented. The temperature dependence of the corresponding order parameter profiles and of the excess adsorption are calculated explicitly. Critical adsorption on elongated rods is substantially more pronounced than on spherical particles. It turns out that, within the context of critical phenomena in confined geometries, critical adsorption on a microscopically thin ‘‘needle’’ represents a distinct universality class of its own. Under favorable conditions the results are relevant for the flocculation of colloidal particles.

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