Digital Commons Network^™

Applications Of Acousto-Optic Demodulation And Decoding Techniques, Matthew Graham Hicks

School of Engineering, Computing and Mathematics Theses

This thesis describes the operation and performance of an acousto-optic demodulator system consisting of a laser source, an acousto-optic cell and a bi-cell detector. The bi-cell detector is made up of two photodiodes positioned side by side, separated by a small gap. Theory is developed to predict the following; the linear operating range for different gap sizes, absolute frequency sensitivity, system output in response to discrete phase changes, optimum gap size for phase demodulation, absolute descrete phase change sensitivity, the performance of the system in the presence of carrier noise and the effect of clipping the carrier signal on both …

A Novel Biosensor Using Nanolithographically-Produced Submicron Optical Sources For The Study Of Cell Adhesion And Chemotaxis, Alastair Sheridan Hood

School of Engineering, Computing and Mathematics Theses

Cell adhesion and chemotaxis are two key factors determining cell behaviour and differentiation which are currently analysed by microscopic examination of the cell or membrane-associated fluorescence labels. These analyses are often slow, labour intensive and of limited informational content. This thesis describes the physical theory and experimental aspects of an optical method suitable for monitoring cell contact, adhesion to a surface and chemotaxis beyond the conventional limit of optical microscopy by means of a device that utilises both a plain bare surface and arrays of apertures nanolithographically-produced in the surface of a Surface Plasmon Resonance (SPR) sensor structure. Any minute …

Feedforward Artificial Neural Network Design Utilising Subthreshold Mode Cmos Devices, Dominique Xavier Henri Leon Coue

School of Engineering, Computing and Mathematics Theses

This thesis reviews various previously reported techniques for simulating artificial neural networks and investigates the design of fully-connected feedforward networks based on MOS transistors operating in the subthreshold mode of conduction as they are suitable for performing compact, low power, implantable pattern recognition systems. The principal objective is to demonstrate that the transfer characteristic of the devices can be fully exploited to design basic processing modules which overcome the linearity range, weight resolution, processing speed, noise and mismatch of components problems associated with weak inversion conduction, and so be used to implement networks which can be trained to perform practical …

Networked Computers + Writing Centers = ? Thinking About Networked Computers In Writing Center Practice, Stuart Blythe

The Writing Center Journal

No abstract provided.

Cybertext/Cyberspeech: Writing Centers And Online Magic, Sara Kimball

The Writing Center Journal

No abstract provided.

Messianic Eschatology:Some Redemptive Reflection On Marketing And The Benefits Of A Process Approach, John Murray, Aidan O'Driscoll

Articles

States that a Messianic view of eschatology is one that directs its hopes to a salvatory or vindicating figure, event or philosophy. In applying the eschatology metaphor to marketing, makes the case that, despite apocalyptic forebodings about its shortcomings, marketing’s salvatory prospects are much improved by the adoption of some new concepts and practices. Suggests that it is now productive to add a strongly process-based view of marketing to more traditional perspectives. Comprehending marketing in terms of four core processes - a marketing strategy process, a marketing management process, an order generation, fulfilment and service process, and a new product …

1997 : Regulations For Postgraduate Study By Research, 2nd Edition : Pamphlet, Dublin Institute Of Technology

DIT Publications

2nd edition of regulations for postgraduate study by research in DIT. Approved by Academic Council, 14 May 1997.

In both English and Irish.

Droplet Concentration And Size Distribution In Haze And Fog, Josef Podzimek

Physics Faculty Research & Creative Works

Fog (haze) droplet concentrations and size distributions were measured at five sampling sites representing rural and urban regions and a highly polluted marine-urban environment. Droplet imprints in a thin gelatine layer were evaluated and compared to the measurement by light scattering instruments. This enabled conditions for the application of the logarithmic-normal size distribution and for the classification of typical fog droplet size distributions to be established. In particular, the parameters featuring the width and asymmetry of a size distribution were suggested and calculated. Advantages and drawbacks of the applied droplet sampling and evaluation technique are discussed in more detail. © …

High-Order Object Model Based Software Analysis, Xiaoqing Frank Liu, Hungwen Lin

Computer Science Faculty Research & Creative Works

The integration of object oriented modeling and structured analysis (SA) for developing a well structured object oriented software system is a challenge for requirements analysts and software designers. Some of the existing object oriented modeling techniques adopt approaches that are very different from SA, and others have clumsily stayed with SA after a few modifications. Our High Order Object Modeling Technique (HOOMT) however, attempts to strike a mean between both extremes while at the same time provides an effective modeling method. HOOMT consists of two models, the High Order Object Model and the Object Information Flow Model. By using the …

Winning The Accreditation Game: The Library As Key Player And Hidden Gold Mine, Antje Mays

Dacus Library Faculty Publications

Libraries are a central hub of information resources supporting college and university curricula. Several library strategies, cross-campus collaborations, and philosophical considerations of electronic and print offerings led to successful accreditations in business and engineering programs.

The Effect Of Three-Dimensional Freestream Disturbances On The Supersonic Flow Past A Wedge, Peter W. Duck, D. Glenn Lasseigne, M. Y. Hussaini

Mathematics & Statistics Faculty Publications

The interaction between a shock wave (attached to a wedge) and small amplitude, three-dimensional disturbances of a uniform, supersonic, freestream flow are investigated. The paper extends the two-dimensional study of Duck et al. [P W. Duck, D. G. Lasseigne, and M. Y. Hussaini, ''On the interaction between the shock wave attached to a wedge and freestream disturbances,'' Theor. Comput. Fluid Dyn. 7, 119 (1995) (also ICASE Report No. 93-61)] through the use of vector potentials, which render the problem tractable by the same techniques as in the two-dimensional case, in particular by expansion of the solution by means of …

Effect Of Variable-Ph Landfill Leachate On A Carbonate Rock Aggregate, William L. Niemann, Allen W. Hatheway

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

Carbonate rock aggregate is commonly used as drainage stone in leachate collection systems of RCRA Subtitle D landfills. U.S. EPA technical guidance for waste containment facilities states that excessive carbonate in drainage stone may result in dissolution and clogging at sites of reprecipitation (Daniel and Koerner, 1993, p. 197). Unfortunately, this theoretical concern does not appear to be confirmed by any experimental evidence with typical landfill leachate or documented instances of clogging at typical Subtitle D landfills. This paper describes a practical laboratory experiment that measured the effects of landfill leachate - maintained at three distinct pH levels - on …

A Mass Resolving Neutral Atom Imager, Earl E. Scime, Paul A. Keiter

Faculty & Staff Scholarship

No abstract provided.

Enhanced Sediment Transport Near Seawalls And Reflective Beaches, Jon Miles

School of Biological and Marine Sciences Theses

This thesis describes results of a field experiment to examine the effect of wave reflection on suspended sediment transport in front of a seawall. Two instrument rigs were set up on the beach at Teignmouth, South Devon, U.K., in June 1995. One rig (the seawall rig) was attached to a protruding section of seawall, positioning the instruments 1.2m seaward of the wall. The other rig (the beach rig) acted as a control and was positioned 135m downcoast where the seawall is set back so that conditions were those of a natural beach. At each rig high frequency measurements of wave …

The In-Situ Erosion Of Intertidal Muds, Malcolm Christie

School of Biological and Marine Sciences Theses

Intertidal mudflats can experience rapid morphological changes, and are both sources and sinks of fine cohesive sediment within an estuary. Successful environmental management of these regions depends upon in-situ measurements, which help specify the interactions between the active processes and so allow the development of predictive models that the management practices require. The Profiles of Sediment Transport system (POST) has been developed in order to make high frequency measurements of velocity and suspended sediment concentration profiles in very shallow water (i.e. when depth, h < 1.0 m). Electromagnetic current meters and optical sensors were miniaturised to allow measurements within a few centimetres of the sea bed and provide fine scale resolution of vertical profiles. Two in-situ experiments, located in the Severn and Humber estuaries, examined the response of a mudflat to changing environmental factors, and in particular, studied the influence of local waves and tidal currents in very shallow water of depth (h)< 1.0 m. A value of 0.127 Nmˉ²was considered to be representative of the critical erosion shear stress (Tint) at Portishead, while at Skeffling τait was estimated to be about 0.31 Nmˉ². The effects of wave and current action were quantified and expressions were used to describe the relationships between velocity, bed shear stress and concentration. An expression relating near bed concentration to mean velocity (U ) at Skeffling was simply: Concentration (gLˉ¹) = 1.908 U + 0.193 when h< 1.0 m. R² = 0.730 The physical processes causing erosion and deposition across two mudflats have been identified, and the predictive expressions are considered to provide first order approximations for sediment concentrations and transport behaviour, for similar conditions at other North European sites. The results showed that the shallow water periods at the beginning and end of tidal coverage were extremely important in determining the surface character of the mudflat, and any erosion was most marked at these times. Small waves can be crucial to erosion because of their large contribution to the bed shear stresses in shallow water. Ignoring biological and chemical variables (both of which can control of erosion), it is proposed that for typical temperate environmental conditions, some form of mudflat erosion is likely when h< 1.0 m, and either the significant wave height (H2) is greater than 0.25 m, or the near bed velocities exceed 0.2 msˉ¹.

Solving A Profound Flaw In Fraud-On-The-Market Theory: Utilizing A Derivative Of Arbitrage Pricing Theory To Measure Rule 10b-5 Damages, Edward Adams, David E. Runkle

Articles

This Article contends that, contrary to its present use in the securities fraud realm as sanctioned by the Supreme Court and as assumed to be correct by most commentators, the CAPM is irrelevant for measuring damages in Rule 10b-5 cases because the CAPM is not designed to measure what stock prices would have been if the requisite fraud had not occurred. Instead, the CAPM is designed to help investors and portfolio managers determine optimal asset portfolios. That is, the CAPM is designed to help people make decisions about assets with uncertain future returns, rather than to analyze the actual past …

University Statistical Abstract 1997, University Of North Florida

University Statistical Abstracts

The University Statistical Abstract (USA) is a collection of informational reports presented in one single source. Serving as a primary planning source document, the USA contains information spanning many University functions: Students, Employees, Budget, Other Resources.

The function of this document is to serve the wide-spread informational needs associated with Institutional, College, Division and Unit planning, program review and institutional research. Also called University of North Florida University Statistical Abstract.

The Improbability Of Religion Clause Theory, Frederick Mark Gedicks

Seton Hall Law Review

No abstract provided.

Mount Laurel And Urban Possibility: What Social Science Research Might Tell The Narratives Of Futility, David D. Troutt

Seton Hall Law Review

No abstract provided.

Survey Of Recent Developments In New Jersey Law

Seton Hall Law Review

No abstract provided.

Presenting And Challenging Witnesses Under New Jersey Rules Of Evidence 607, 611(C), And 803(A)(1): Should We Vouch For The Credibility Of These Rules?, Charles J. Walsh, Gwen L. Posner

Seton Hall Law Review

No abstract provided.

For Sale: Two-Bedroom Home With Spacious Kitchen, Walk-In Closet, And Pervert Next Door, Flavio L. Komuves

Seton Hall Law Review

No abstract provided.

Survey Of Recent Developments In New Jersey Law

Seton Hall Law Review

No abstract provided.

Past As Prologue: Sobering Thoughts On Genetic Enthusiasm, Lori B. Andrews

Seton Hall Law Review

No abstract provided.

Constrained Moments Simulation Of Healthcare Capital Acquisitions, A. Narsing, Samuel Frimpong, J. Whiting

Mining Engineering Faculty Research & Creative Works

Summary form only as given. Two analytical techniques which evaluate capital acquisitions in healthcare are the method of generating system moments and Monte Carlo simulation. Generating system moments enables the user to determine an estimate of the expected cost from a user-supplied function. Furthermore, the user can determine, from a variance component analysis, the sensitivity of the user-supplied function to marginal changes in the random variables by expanding the function about its mean using the Taylor series expansion to the second order. Calculating the magnitude of partial derivatives of each random variable with respect to the user-supplied function indicates the …

Scaling Parallels In The Non-Debye Dielectric Relaxation Of Ionic Glasses And Dipolar Supercooled Liquids, David L. Sidebottom, Peter F. Green, Richard K. Brow

Materials Science and Engineering Faculty Research & Creative Works

We compare the dielectric response of ionic glasses and dipolar liquids near the glass transition. Our work is divided into two parts. In the first section we examine ionic glasses and the two prominent approaches to analyzing the dielectric response. The conductivity of ion-conducting glasses displays a power law dispersion σ(ω)∞ωn, where n≈0.67, but frequently the dielectric response is analyzed using the electrical modulus M*(ω) = 1/ε*(ω), where ε*(ω) = ε(ω) - iσ(ω)/ω is the complex permittivity. We reexamine two specific examples where the shape of M*(ω) changes in response to changes in (a) temperature and (b) ion concentration, to …

Ferroelectric Films As A Fashion Object For Polycrystalline Film Investigation, V. Petrovsky, Harlan U. Anderson, M. Shumsky

Materials Science and Engineering Faculty Research & Creative Works

BaxSr1-xTiO3 (BST), PbZrxTi1-xO3 (PZT) and two-layer PZT-BST films were prepared on Pt, Si(100) and Si(111) substrates by a sol-gel method. XRD analysis shows that the PZT films on the Si(111) substrates tended to be preferentially oriented in the (110) direction. The nondestructive readout of the state of ferroelectric polarization was investigated by three methods: the pyroelectric effect, the non-linearity of the capacitance and the field effect in MOS structures. It is shown that all three methods provide nondestructive readout, and the choice between them depends on the intended use.

Chemical Durability Of Lead-Oxide-Based, Thick-Film Binder Glasses, Douglas M. Mattox, Joshua H. Robinson

Materials Science and Engineering Faculty Research & Creative Works

Lead-oxide-bearing glasses are incompatible with aluminum nitride metallization's, and federal legislation is recommending their replacement in thick-film electronics and labeling. To evaluate alternatives, the benchmark chemical durability's of the lead borosilicate and lead aluminate thick-film binder glasses have been determined. Aluminum oxide (Al2O3) benefits water durability moderately, acid durability substantially, and basic durability indistinguishably. The rate of attack in water is approximately two orders of magnitude greater than for soda-lime glass. The thermal contractions of the glasses are compatible. An apparent, spontaneous phase separation in the Al2O3-free glass is suppressed by Al2O3 that is included as a batch component.

Observation Of Upper Tropospheric Sulfur Dioxide- And Acetone-Pollution: Potential Implications For Hydroxyl Radical And Aerosol Formation, F. Arnold, J. Schneider, K. Gollinger, H. Schlager, P. Schulte, Donald E. Hagen, Philip D. Whitefield, Peter F. J. Van Velthoven

Physics Faculty Research & Creative Works

Aircraft-based measurements of sulfur dioxide, acetone, carbon dioxide, and condensation nuclei (CN) were made over the north-eastern Atlantic at upper tropospheric altitudes, around 9000 m. On October 14, 1993, strong SO ₂- and acetone-pollution (both up to 3 ppbv) were observed, which were accompanied by a CO ₂-enhancement of up to 6 ppmv, and large CN-concentrations of up to about 1500 cm ^-3 (for radii ≥ 6 nm). CN, excess CO ₂, and to a lesser degree also acetone, were positively correlated with SO ₂. Air mass trajectory analyses indicate, that most of the air masses …

Spherical Harmonics - Finite Element Treatment Of Neutron Transport In Cylindrical Geometry, Hatem Khouaja, D. Ray Edwards, Nicholas Tsoulfanidis

Nuclear Engineering and Radiation Science Faculty Research & Creative Works

A variational spherical harmonics (DPN) method is used in conjunction with the finite element method to solve the transport of neutron beams. The method is developed for finite axisymmetric cylindrical geometry. In this model, the angular distribution along the path of neutron travel is separated into two sub-ranges of the forward and the backward moving particles. The system of the model equations is cast in terms of an even and an odd vector analogue to the even-parity transport technique. The finite element method is applied in space to solve the resulting coupled system of equations. A source-free cylinder with specified …