Digital Commons Network^™

Comparative Study Of The Dynamics Of Circulating Fluidized Bed Riser And Downer Of Equal Diameters, Samwel V. Manyele

Tanzania Journal of Engineering and Technology (TJET)

The microscopic flow dynamics of the 100-mm internal diameter riser/downer circulating fluidized bed (CFB) unit were monitored using a solids concentration fiber optic probe. The comparison was conducted by comparing radial profiles Of the dynamic parameters derived from time-series analysis techniques (statistical and chaos analyses). The solids concentration signals used were recorded under similar operating conditions (gas velocity of 8.0 m/s and solids flux of 100 kg/m2s). Similar axial elevations were compared (entrance and fully developed sections of die reactors). A1 each loca!ion, the signals were sampled a! afrequency of 970 Hz for duration of 30 seconds. It was observed …

Information And Communication Technology Applications In The Tanzanian Health Sector, M Victor

Tanzania Journal of Engineering and Technology (TJET)

The potential role of Information and Communication Technology (ICT) in the health sector is to improve the delivery of health services and would also help to deal with major constraints in uplifting the health standards Of Tanzanians. ICT in heath can be used to facilitate remote consultation, diagnosis and treatment. The objective Of the study was exploratory in nature and aimed at determining the awareness level of the länzanian health sector on various ICT applications which could be used in the sector. The study also aimed ar establishing the challenges to the implementation of ICT in the Tanzanian health sector. …

Seaworthiness In The Context Of The Isps Code And The Relevant Amendments To Solas Convention, 1974, Nabil Anwari

World Maritime University Dissertations

No abstract provided.

New Mexico Labor Market Review 12-31-2004, New Mexico Department Of Labor

Historic Publications

This issue of the New Mexico Labor Market Review presents November 2004 employment, unemployment, wage, and economic activity data for New Mexico, its counties, and metropolitan areas.

Preparations Of Spherical Polymeric Particles From Tanzanian Cashew Nut Shell Liquid By Suspension Polymerization, L L Mkayula, Y M M Makame, T H Matechi

Tanzania Journal of Science

Spherical Polymeric Particles (SPP) have been prepared from Tanzanian Cashew Nut Shell Liquid (CNSL) by suspension polymerization technique involving either step-growth or chain- growth polymerization mechanisms. The sizes of the SPP, which ranged from 0.1 to 2.0 mm were strongly influenced by the amounts of stabilizers in polymerization recipes used. The particles showed variable surface areas, indicative of the presence of pores in some of the preparations and the highest surface area recorded was about 260 m2g-1. The particles were found to exhibit Langmuir-type adsorption isotherms with saturation capacity of about 9.0 and 44.2 mg/g for Na+ and Ca2+, respectively. …

Evaluation Of Artificial Intelligence Based Models For Chemical Biodegradability Prediction, James R. Baker, Dragan Gamberger, James R. Mihelcic, Aleksandar Sabljic

Michigan Tech Publications, Part 1

This study presents a review of biodegradability modeling efforts including a detailed assessment of two models developed using an artificial intelligence based methodology. Validation results for these models using an independent, quality reviewed database, demonstrate that the models perform well when compared to another commonly used biodegradability model, against the same data. The ability of models induced by an artificial intelligence methodology to accommodate complex interactions in detailed systems, and the demonstrated reliability of the approach evaluated by this study, indicate that the methodology may have application in broadening the scope of biodegradability models. Given adequate data for biodegradability of …

The Weekly Challenger, December 30, 2004, The Weekly Challenger, Et Al

Weekly Challenger Newspaper Collection

The December 30, 2004, issue of The Weekly Challenger.

Assessment Of The Accuracy Of Approximate Methods In The Analysis Of Plane Frame Structures, I Rubaratuka

Tanzania Journal of Engineering and Technology (TJET)

pproximaic methods of analysis are widely used in the analysis OJ' frames for preliminary design due to their simplicily as compared to exact analysis meth o ds Ough they a re nol as accurate. In this paper. the methods Of hinges and portal frame are described and have been used to analyze a statically indeterminate frame by taking inro account the bending stiffness of the frame members. The obtained results are comparable Io the magnitudes of forces determined by exact methods Of analysis.

The Icdm Development Toolkit: Technical Description, Russell Leighton, Lakshmi Vempati, Alan Davis, Mark Porczak, Jens G. Pohl

Collaborative Agent Design (CAD) Research Center

This report provides a technical description of the Integrated Cooperative Decision-Making (ICDM) software toolkit for the development of intelligent decision-support applications. An overview of the transformational forces that have precipitated the need for a development toolkit capable of supporting a distributed, information-centric software environment, and the objectives of ICDM are contained in a companion CDM Technical Report (CDM-16-04) entitled: “The ICDM Development Toolkit: Purpose and Overview”.

ICDM is an application development framework and toolkit for distributed decision-support systems incorporating software agents that collaborate with each other and human users to monitor changes (i.e., events) in the state of problem situations, …

Murray Ledger And Times, December 29, 2004, Murray Ledger And Times

The Murray Ledger & Times

No abstract provided.

Influence Of Hydraulic Property Correlation On Predicted Dense Nonaqueous Phase Liquid Source Zone Architecture, Mass Recovery And Contaminant Flux, Lawrence D. Lemke, Linda M. Abriola, John R. Lang

Environmental Science and Geology Faculty Research Publications

Organic liquid saturation distributions resulting from a simulated tetrachloroethene (PCE) spill were generated with alternative models of spatially varying aquifer properties for a statistically homogeneous, nonuniform sand aquifer. The distributions were analyzed to quantify DNAPL source zone characteristics and then incorporated as initial conditions for simulated PCE recovery using surfactant-enhanced aquifer remediation (SEAR). The predicted evolution of the spatial distribution of DNAPL saturations or source zone ‘‘architectures’’ and associated remediation efficiencies are strongly influenced by the spatial correlation of aquifer parameters and multiphase flow constitutive relationships. Model predictions suggest that removal of 60 to 99% of entrapped PCE can reduce …

Aicpa Board/Council Briefing Synopsis Updated As Of December 29, 2004, American Institute Of Certified Public Accountants (Aicpa)

Association Sections, Divisions, Boards, Teams

No abstract provided.

Process For Ozonating And Converting Organic Materials Into Useful Products, Annel K. Greene

Clemson Patents

A process for converting organic waste materials into useable products and products thereof is disclosed. According to the process, organic waste materials are contacted with ozone thereby converting said waste material to a substrate or medium. The substrate is a product of the process and it may be further contacted with organisms for bioconversion to further products. The organisms can include bacteria, yeast, fungi, plant cells, animal cells and genetically engineered organisms which are selected for their ability to bioconvert the substrate and produce a selected product.

Dec 2004, Tractor Museum

Lester F. Larsen Tractor Museum: Planning and Development Documents

Introductions Treasurer's Report Curator's Report

Pwm Half-Bridge Converter With Dual-Equally Adjustable Control Signal Dead-Time, Issa Batarseh, Jaber Abu Qahouq, Hong Mao

UCF Patents

A method and system of controlling half-bridge DC--DC converters to achieve Zero Voltage Switching (ZVS) for at least one of the switches. The soft-switching half-bridge DC--DC converter system includes soft-switching for all switches by adding an additional branch with a switch and a diode across the primary side of an isolation transformer and by applying a Duty-Cycle Shifted PWM Control.

Distributed Source Separation Algorithms For Hyperspectral Image Processing, Stefan Robila

Department of Computer Science Faculty Scholarship and Creative Works

This paper describes a new algorithm for feature extraction on hyperspectral images based on blind source separation (BSS) and distributed processing. I use Independent Component Analysis (ICA), a particular case of BSS, where, given a linear mixture of statistical independent sources, the goal is to recover these components by producing the unmixing matrix. In the multispectral/hyperspectral imagery, the separated components can be associated with features present in the image, the source separation algorithm projecting them in different image bands. ICA based methods have been employed for target detection and classification of hyperspectral images. However, these methods involve an iterative optimization …

Employment Discrimination In A High Velocity Labor Market, Alan Hyde

Rutgers Law School (Newark) Faculty Papers

Silicon Valley employers employ few African-Americans, Latino/as, or older workers, yet do not fit the usual paradigms of employment discrimination: they exhibit no taste for uniformity and do not employ job tournaments or internal labor markets. A new model of employment discrimination attributes disparate hiring in Silicon Valley to a combination of: demands for specific skill sets at hiring (the opposite of the subjective criteria that have long beguiled scholars of discrimination) and concomitant refusal to train; hiring through networks of personal contacts; and rewards to career paths that alternate employment with self-employment. Overcoming the disparate impact of these employment …

Who Speaks For The Working Poor?: A Preliminary Look At The Emerging Tetralogy Of Representation Of Low-Wage Service Workers, Alan Hyde

Rutgers Law School (Newark) Faculty Papers

Recent advocacy campaigns for low-wage service workers in New York City reveal a new pattern of representation by legal avocacy groups (like National Employment Law Project or law school clinics), governmental actors (like the state Attorney General or New York City Council), and immigrant rights groups. Such campaigns have won important economic and legal victories for Mexican workers in Korean greengroceries, West African delivery personnel for supermarkets and drug chains, and domestic workers. They have not, however, institutionalized workplace or political representation for these groups. Unions have either been passive, outmaneuvered, or played negative roles in these campaigns. This pattern …

Supercomputer Addition Expands Service Statewide, Tobie Baker

University of Mississippi News

OXFORD, Miss. - With a new award-winning supercomputer from Silicon Graphics, the Mississippi Center for Supercomputing Research at the University of Mississippi offers the eight state-supported Institutions of Higher Learning the most powerful shared memory system available.

Imaging Using Lateral Bending Modes Of Atomic Force Microscope Cantilevers, A. Caron, U. Rabe, M. Reinstadtler, Joseph A. Turner, W. Arnold

Nebraska Center for Materials and Nanoscience: Faculty Publications

Using scanning probe techniques, surface properties such as shear stiffness and friction can be measured with a resolution in the nanometer range. The torsional deflection or buckling of atomic force microscope cantilevers has previously been used in order to measure the lateral forces acting on the tip. This letter shows that the flexural vibration modes of cantilevers oscillating in their width direction parallel to the sample surface can also be used for imaging. These lateral cantilever modes exhibit vertical deflection amplitudes if the cantilever is asymmetric in thickness direction, e.g., by a trapezoidal cross section.

Deafdigest: Gold Edition, December 26, 2004, Barry Strassler

DeafDigest Gold 2004

No abstract provided.

12/26/2004 Obituary Records, Hawaii Obituaries

Obituaries

List of Obituaries for individuals who passed away on 12/26/2004. Scroll down to see the names and obituary description.

Faculty Newsnotes 2004 No. 365, Office Of The Provost

Faculty Newsnotes (1972-2010)

No abstract provided.

December 25, 2004 (Pages 6753-6818), Pennsylvania Legislative Reference Bureau

Volume 34 (2004)

No abstract provided.

Quantum Zeno And Anti-Zeno Effects: An Exact Model, T. C. Dorlas, R. F. O'Connell

Faculty Publications

Recent studies suggest that both the quantum Zeno (increase of the natural lifetime of an unstable quantum state by repeated measurements) and anti-Zeno (decrease of the natural lifetime) effects can be made manifest in the same system by simply changing the dissipative decay rate associated with the environment. Here, we present a model which incorporates the effect of the environment in an exact manner leading to a confirmation of this expectation.

Land Use Influence On The Characteristics Of Groundwater Inputs To The Great Bay Estuary, New Hampshire, Thomas P. Ballestero, Robert Roseen, Gabriel F. Bacca-Cortes

PREP Reports & Publications

This research examines the sources and factors affecting nutrient-laden groundwater discharge to the Great Bay Estuary. To further understand this relationship, examination of groundwater residence time, a review of historic land uses, and nitrate source tracking strategies were used. Seven submarine groundwater discharge (SGD) sites were selected, and groundwater monitoring networks were installed to examine the relationship between land use and groundwater quality at the discharge zones. Field activities were performed in the summer and fall of 2003 and 2004. Estuarine water intrusion in groundwater discharge samples confounded the analyses for major ion chemistry and boron isotopes. CFC-derived and modeled …

On-Line Resource Clearinghouse For Rapidly Growing Communities, Amy Seif

PREP Reports & Publications

According to the Environmental Protection Agency, sprawl is among the biggest environmental challenges facing New England, where more than 1,200 acres of open space are lost to development each week. New Hampshire is the fastest growing state in New England, and much of this growth is located within the 42 community coastal watershed served by the New Hampshire Estuaries Project. The Resource Clearinghouse for Rapidly Growing Communities project was created out of an interest in getting community decision makers the information and access to resources that they need to make informed decisions in this challenging time. The clearinghouse is designed …

Pseudorapidity Asymmetry And Centrality Dependence Of Charged Hadron Spectra In D+Au Collisions At √SNn=200 Gev, Star Collaboration, T.D. Gutierrez

Physics

The pseudorapidity asymmetry and centrality dependence of charged hadron spectra in d+Au collisions at √s_NN=200 GeV are presented. The charged particle density at midrapidity, its pseudorapidity asymmetry, and centrality dependence are reasonably reproduced by a multiphase transport model, by HIJING, and by the latest calculations in a saturation model. Ratios of transverse momentum spectra between backward and forward pseudorapidity are above unity for p_T below 5GeV ∕ c. The ratio of central to peripheral spectra in d+Au collisions shows enhancement at 2 < p_T < 6GeV ∕ c, with a larger effect at backward rapidity than forward rapidity. Our measurements are in qualitative agreement with gluon saturation and in contrast to calculations based on incoherent multiple partonic scatterings.

Murray Ledger And Times, December 23, 2004, Murray Ledger And Times

The Murray Ledger & Times

No abstract provided.

Conversation Exchange Dynamics: A New Signal Primitive For Computer Network Intrusion Detection, John C. Mceachen, John M. Zachary, Junling Wang, Kah Wai Cheng

United States Navy: Publications

As distributed network intrusion detection systems expand to integrate hundreds and possibly thousands of sensors, managing and presenting the associated sensor data becomes an increasingly complex task. Methods of intelligent data reduction are needed to make sense of the wide dimensional variations. We present a new signal primitive we call conversation exchange dynamics (CED) that accentuates anomalies in traffic flow. This signal provides an aggregated primitive that may be used by intrusion detection systems to base detection strategies upon. Indications of the signal in a variety of simulated and actual anomalous network traffic from distributed sensor collections are presented. Specifically, …