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2007

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Multivariable Robust Control Of A Simulated Hybrid Solid Oxide Fuel Cell Gas Turbine Plant, Alex Tsai Dec 2007

Multivariable Robust Control Of A Simulated Hybrid Solid Oxide Fuel Cell Gas Turbine Plant, Alex Tsai

Graduate Theses, Dissertations, and Problem Reports (ETD)

This work presents a systematic approach to the multivariable robust control of a hybrid fuel cell gas turbine plant. The hybrid configuration under investigation built by the National Energy Technology Laboratory comprises a physical simulation of a 300kW fuel cell coupled to a 120kW auxiliary power unit single spool gas turbine. The public facility provides for the testing and simulation of different fuel cell models that in turn help identify the key difficulties encountered in the transient operation of such systems. An empirical model of the built facility comprising a simulated fuel cell cathode volume and balance of plant components …

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Capacity -Based Parameter Optimization Of Bandwidth Constrained Cpm, Rohit Iyer Seshadri Dec 2007

Capacity -Based Parameter Optimization Of Bandwidth Constrained Cpm, Rohit Iyer Seshadri

Graduate Theses, Dissertations, and Problem Reports (ETD)

Continuous phase modulation (CPM) is an attractive modulation choice for bandwidth limited systems due to its small side lobes, fast spectral decay and the ability to be noncoherently detected. Furthermore, the constant envelope property of CPM permits highly power efficient amplification. The design of bit-interleaved coded continuous phase modulation is characterized by the code rate, modulation order, modulation index, and pulse shape. This dissertation outlines a methodology for determining the optimal values of these parameters under bandwidth and receiver complexity constraints. The cost function used to drive the optimization is the information-theoretic minimum ratio of energy-per-bit to noise-spectral density found …

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On Mathematical Modeling, Nonlinear Properties And Stability Of Secondary Flow In A Dendrite Layer, Daniel N. Riahi Dec 2007

On Mathematical Modeling, Nonlinear Properties And Stability Of Secondary Flow In A Dendrite Layer, Daniel N. Riahi

School of Mathematical & Statistical Sciences Faculty Publications

This paper studies instabilities in the flow of melt within a horizontal dendrite layer with deformed upper boundary and in the presence or absence of rotation during the solidification of a binary alloy. In the presence of rotation, it is assumed that the layer is rotating about a vertical axis at a constant angular velocity. Linear and weakly nonlinear stability analyses provide results about various flow features such as the critical mode of convection, neutral stability curve, preferred flow pattern and the solid fraction distribution within the dendrite layer. The preferred shape of the deformed upper boundary of the layer, …

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Beyond Foraging: Behavioral Science And The Future Of Institutional Economics, Alexander J. Field Dec 2007

Beyond Foraging: Behavioral Science And The Future Of Institutional Economics, Alexander J. Field

Economics

Institutions affect economic outcomes, but variation in them cannot be directly linked to environmental factors such as geography, climate, or technological availabilities. Game theoretic approaches, based as they typically are on foraging only assumptions, do not provide an adequate foundation for understanding the intervening role of politics and ideology; nor does the view that culture and institutions are entirely socially constructed. Understanding what institutions are and how they influence behavior requires an approach that is in part biological, focusing on cognitive and behavioral adaptations for social interaction favored in the past by group selection. These adaptations, along with their effects …

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Still Square Pegs In Round Holes? A Look At Ancsa Corporations, Corporate Governance, And Indeterminate Form Or Operation Of Legal Entities, Douglas M. Branson Dec 2007

Still Square Pegs In Round Holes? A Look At Ancsa Corporations, Corporate Governance, And Indeterminate Form Or Operation Of Legal Entities, Douglas M. Branson

Alaska Law Review

No abstract provided.

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A Sexual Relationship, Did We Have One? A Review Of The Definition Of “Sexual Relationship” Within The Context Of Alaska’S Domestic Violence Laws, Beth Goldstein Lewis Trimmer Dec 2007

A Sexual Relationship, Did We Have One? A Review Of The Definition Of “Sexual Relationship” Within The Context Of Alaska’S Domestic Violence Laws, Beth Goldstein Lewis Trimmer

Alaska Law Review

No abstract provided.

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The Interagency And Counterinsurgency Warfare: Aligning And Integrating Military And Civilian Roles In Stability, Security, Transition, And Reconstruction Operations, Joseph R. Cerami Dr., Jay W. Boggs Mr. Dec 2007

The Interagency And Counterinsurgency Warfare: Aligning And Integrating Military And Civilian Roles In Stability, Security, Transition, And Reconstruction Operations, Joseph R. Cerami Dr., Jay W. Boggs Mr.

Books, Monographs & Collaborative Studies

For decades since the formation of the defense establishment under the 1947 National Security Act, all U.S. cabinet departments, national security agencies, and military services involved in providing for the common defense have struggled to overcome differences in policy and strategy formulation, organizational cultures, and even basic terminology. Post-September 11, 2001, international systems, security environments, U.S. military campaigns in Afghanistan and Iraq, and the greater Global War on Terrorism have confronted civilian policymakers and senior military officers with a complex, fluid battlefield which demands kinetic and counterinsurgency capabilities. This monograph addresses the security, stability, transition, and reconstruction missions that place …

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Library Organization Information Literacy Units, Virginia A. Baldwin Dec 2007

Library Organization Information Literacy Units, Virginia A. Baldwin

University of Nebraska-Lincoln Libraries: Faculty Publications

Information Literacy is an important component of library and information organizations at the local, regional, national and international level. From the newly formed Science and Technology Section’s (STS) Information Literacy Committee to the long standing Instruction Section (IS), both of which are within the Association of College and Research Libraries (ACRL) Division of the American Library Association (ALA), the level of functionality varies. This column reviews information literacy/library instruction units in national and international organizations and their various attributes.

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Optimal Receiver For Space Time Spreading Across A Time Hopping Ppm Over Ultra Wideband Saleh-Valenzuela Mimo Channel, Peter Vial, Beata J. Wysocki, Tadeusz A. Wysocki Dec 2007

Optimal Receiver For Space Time Spreading Across A Time Hopping Ppm Over Ultra Wideband Saleh-Valenzuela Mimo Channel, Peter Vial, Beata J. Wysocki, Tadeusz A. Wysocki

Department of Electrical and Computer Engineering: Faculty Publications (to 2015)

This paper outlines a technique which can use multiple transmit antennas to send more than one binary bit using the same number of transmit antennas over a single transmission. It uses Ultra Wideband orthogonal pulse position modulation to achieve this, with the receiver employing a Rake receiver and a Maximum Ratio Combiner optimal detector. This is done over a Space Time Spreading Time Hopping Ultra Wideband Pulse Position Modulation system assuming a rich multipath Saleh-Valenzuela MIMO channel model. Simulation results indicate that a significant gain can be achieved compared with other proposed schemes utilising multiple transmit antennas for Ultra Wide …

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The Relationship Between The Mmpi-2'S Rc3 Cynicism Scale And Social Support, Blake K. Webster Dec 2007

The Relationship Between The Mmpi-2'S Rc3 Cynicism Scale And Social Support, Blake K. Webster

Electronic Theses & Dissertations

The current study examined the MMPI-2's Restructured Clinical Scale 3 (RC3) measuring cynicism from the Tellegen et al. (2003) Restructured Clinical Scales project. While RC3 has shown adequate reliability coefficients, research investigating RC3 has questioned its validity and descriptive abilities. Research suggests that adequate criterion has not been established for the scale. RC3 in this study was correlated with three types of social support: Proactive Coping, Instrumental Support Seeking, and Emotional Support Seeking. Based on a review of the literature of cynicism and social support, it was hypothesized that a negative relationship would exist between the two constructs. The study …

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Examination Of Teacher Workplace Satisfaction And Student Achievement, Angela Scott Patrick Dec 2007

Examination Of Teacher Workplace Satisfaction And Student Achievement, Angela Scott Patrick

College of Graduate Studies: Theses & Dissertations

Research has been conducted to study teacher workplace satisfaction. The following factors were identified as integral to teacher workplace satisfaction: administrative support; student behaviors; workplace atmosphere; autonomy and efficacy. Findings within the extant literature indicated that student achievement is a factor in teachers' satisfaction with their work. Specifically, educators have repeatedly expressed a need to impact student achievement and have noted satisfaction or dissatisfaction in relation to their perception of their influence or lack therefore. The purpose of this study was to examine the relationship between teacher workplace satisfaction and student achievement with the intent of making recommendations regarding maximization …

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Performance-Based Assessment Within A Balanced Literacy Framework: An Analysis Of Teacher Perceptions And Implementation In Elementary Classrooms, Amy Mcgowan Duke Dec 2007

Performance-Based Assessment Within A Balanced Literacy Framework: An Analysis Of Teacher Perceptions And Implementation In Elementary Classrooms, Amy Mcgowan Duke

College of Graduate Studies: Theses & Dissertations

This mixed methods study explored the perspectives of thirty-nine (N=39) elementary teachers employed in four elementary schools in one school district in Georgia regarding the use of performance-based assessment strategies within an all encompassing balanced literacy framework for instruction. Participants were surveyed on their use of performance-based assessment strategies, and both quantitative and qualitative data were collected. This study draws on the research regarding the dichotomy that exists between standardized tests and the performance-based assessment practices of teachers implementing balanced literacy. Because teacher buy-in is critical to the success of any curricular initiative, inquiry into teacher perceptions of their role …

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Glucose-6-Phosphate Dehydrogenase (G6pd) Screening In Pakistani Neonates: To Be Or Not To Be, Bushra Moiz Dec 2007

Glucose-6-Phosphate Dehydrogenase (G6pd) Screening In Pakistani Neonates: To Be Or Not To Be, Bushra Moiz

Department of Pathology and Laboratory Medicine

No abstract provided.

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The Role Of Data Mining In Increasing Organizational Performance: An Analytical Study In The Industrial Bank, Zakaria M. Al-Douri, Dahlia Abdul Hussain Ahmed Dec 2007

The Role Of Data Mining In Increasing Organizational Performance: An Analytical Study In The Industrial Bank, Zakaria M. Al-Douri, Dahlia Abdul Hussain Ahmed

Journal of Economics and Administrative Sciences

Financial and banking institutions primarily interact with a vast clientele, necessitating the collection of massive volumes of data that, alongside daily operational inputs, result in extensive datasets requiring significant efforts to manage and utilize effectively. Relying on manual processing without modern technologies hinders organizational growth and prevents the attainment of superior performance levels; furthermore, the mere integration of computers is insufficient without the deployment of advanced techniques and software designed to support management and optimize time and effort. Consequently, Data Mining emerges as a pivotal solution, offering a sophisticated technology aimed at discovering hidden patterns and previously unknown information within …

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Targeting Of The Price As A Basis For Achieving Target Costing In Economic Units Operating In The Modern Business Environment, Jalilah Idan Hulayhi, Thair Sabri Al Ghabban Dec 2007

Targeting Of The Price As A Basis For Achieving Target Costing In Economic Units Operating In The Modern Business Environment, Jalilah Idan Hulayhi, Thair Sabri Al Ghabban

Journal of Economics and Administrative Sciences

Prices represent the monetary expression of the value of goods and services provided to customers, and the pricing process is a critical operation with a profound impact on the success and sustainability of business organizations, given its influence on profitability and the redistribution of national income allocated for consumption, which enables individuals to allocate their income between essential and luxury goods. Generally, the pricing process serves a variety of objectives that differ across organizations and is influenced by a set of factors requiring strategic responses; traditionally, there are two primary approaches to price determination: the economic approach, which is fundamentally …

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Trust, Conflict, And Cooperative Behavior: The Role Of Reciprocal Relationships Within Organizations, Saad Ali Al-Anzi Dec 2007

Trust, Conflict, And Cooperative Behavior: The Role Of Reciprocal Relationships Within Organizations, Saad Ali Al-Anzi

Journal of Economics and Administrative Sciences

This study investigates the complex interplay between trust, conflict, and cooperative behavior within organizational settings, emphasizing the pivotal role of reciprocal relationships. By examining how interpersonal and systemic trust act as catalysts for collaboration, the research highlights that mutual reliance and positive reciprocity significantly mitigate the dysfunctional effects of workplace conflict. The paper argues that when employees perceive a high level of reciprocity, they are more likely to engage in cooperative behaviors, even in the presence of task-related disagreements, as the underlying trust provides a safety net that prevents conflict from escalating into personal animosity. Through an analysis of organizational …

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Measurement And Analysis Of Vibration Levels On Warehouse And Retail Store Material Handling Equipment, S. P. Singh, Jay A. Singh, P. Gaur, K. Saha Dec 2007

Measurement And Analysis Of Vibration Levels On Warehouse And Retail Store Material Handling Equipment, S. P. Singh, Jay A. Singh, P. Gaur, K. Saha

Industrial Technology and Packaging

Material Handling Equipment (MHE) is widely used to move packaged goods from manufacturing to warehousing, storage, transportation, in both warehouses and distribution centers to retail stores. Moving product between facilities is done by different types of equipment ranging from manually pushed carts to automated vehicles. A considerable amount of research has been conducted to evaluate the ergonomics of manual or mechanized MHE in the past. There is, however, no published work documenting vibration conditions that occur when transporting packages using MHE. This study measured the vibration levels for typical MHE used at warehousing facilities. Power spectral density plots were generated …

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The Greatest Advancement Since The Shovel: Remote Sensing On Three Historical Case Studies, Ian B. Kerr Dec 2007

The Greatest Advancement Since The Shovel: Remote Sensing On Three Historical Case Studies, Ian B. Kerr

Pell Scholars and Senior Theses

This thesis, as both a research and exploratory-driven investigation, seeks to investigate the effectiveness of using remote sensing technology on historical case studies. If the technology reveals itself to be beneficial in understanding historical landscapes, then it will be prognosticate on future archaeological excavations on those locations, based on the inferences and conclusions, gained from the remote sensing images.

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Enhanced Uv Inactivation Of Adenoviruses Under Polychromatic Uv Lamps, Karl G. Linden, Jeanette Thurston, Raymond Schaefer, James P. Malley Jr. Dec 2007

Enhanced Uv Inactivation Of Adenoviruses Under Polychromatic Uv Lamps, Karl G. Linden, Jeanette Thurston, Raymond Schaefer, James P. Malley Jr.

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Adenovirus is recognized as the most UV-resistant waterborne pathogen of concern to public health microbiologists. The U.S. EPA has stipulated that a UV fluence (dose) of 186 mJ cm-2 is required for 4-log inactivation credit in water treatment. However, all adenovirus inactivation data to date published in the peer-reviewed literature have been based on UV disinfection experiments using UV irradiation at 253.7 nm produced from a conventional low-pressure UV source. The work reported here presents inactivation data for adenovirus based on polychromatic UV sources and details the significant enhancement in inactivation achieved using these polychromatic sources. When full-spectrum, medium-pressure …

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Integrating Conservation Uses Into Takings Law: Why Courts Should View Conservation As A Possible Highest And Best Use, Avery Emison Carson Dec 2007

Integrating Conservation Uses Into Takings Law: Why Courts Should View Conservation As A Possible Highest And Best Use, Avery Emison Carson

North Carolina Law Review

No abstract provided.

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United States Food Law Update: Labeling Controversies, Biotechnology Litigation, And The Safety Of Imported Food, A. Bryan Endres Dec 2007

United States Food Law Update: Labeling Controversies, Biotechnology Litigation, And The Safety Of Imported Food, A. Bryan Endres

Journal of Food Law & Policy

This update summarizes significant changes and developments in food law throughout the first half of 2007. Out of necessity, not every change is included; rather, this update is limited to significant changes in national law. This series of updates provides a starting point for scholars, practitioners, food scientists, and policymakers determined to understand the shaping of food law in modern society. Tracing the development of food law through these updates also builds an important historical context for the overall development of the discipline.

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Investing In Air Transport - A Prudent Move, Ruwantissa Abeyratnre Dec 2007

Investing In Air Transport - A Prudent Move, Ruwantissa Abeyratnre

Transportation Law Journal

No abstract provided.

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Puerto Rico Posts Authority V. Umpierre-Solares: Can The Dead Ship Doctrine Ever Remove A Suit Brought In Personam On A Maritime Contract From Federal Admiralty Jurisdiction, Braxton Williams Dec 2007

Puerto Rico Posts Authority V. Umpierre-Solares: Can The Dead Ship Doctrine Ever Remove A Suit Brought In Personam On A Maritime Contract From Federal Admiralty Jurisdiction, Braxton Williams

Transportation Law Journal

No abstract provided.

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The Carbon-Neutral Individual, Michael P. Vandenbergh, Anne C. Steinemann Dec 2007

The Carbon-Neutral Individual, Michael P. Vandenbergh, Anne C. Steinemann

Vanderbilt Law School Faculty Publications

Reducing the risk of catastrophic climate change will require leveling off greenhouse gas emissions over the short term and reducing emissions by an estimated 60-80% over the long term. To achieve these reductions, we argue that policymakers and regulators should focus not only on factories and other industrial sources of emissions but also on individuals. We construct a model that demonstrates that individuals contribute roughly one-third of carbon dioxide emissions in the United States. This one-third share accounts for roughly 8% of the world's total, more than the total emissions of any other country except China, and more than several …

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Michigan Elementary School Facility Quality And Its Impact On Student Achievement, Brett A. Geier Dec 2007

Michigan Elementary School Facility Quality And Its Impact On Student Achievement, Brett A. Geier

Dissertations

Studies on school facility quality and its impact on student achievement have been conducted throughout the nation with varying results. Some studies conclude a significant relationship exists between facility condition and student achievement, while others refute this potential phenomenon. Much of the research concludes that not enough analyses have been conducted to make appropriate generalizations. This research study focused on the condition ofelementary schools in Michigan and utilized the Michigan Educational Assessment Program (M.E.A.P.) examinations in reading and mathematics at the third, fourth and fifth grade levels as the dependent variable to assess the relationship between building condition and student …

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Six Steps To A Smaller World: Finding International Law From Your Desktop, Jennifer Sekula Dec 2007

Six Steps To A Smaller World: Finding International Law From Your Desktop, Jennifer Sekula

Library Staff Publications

No abstract provided.

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Securitizing Audit Failure Risk: An Alternative To Caps On Damages, Lawrence A. Cunningham Dec 2007

Securitizing Audit Failure Risk: An Alternative To Caps On Damages, Lawrence A. Cunningham

William & Mary Law Review

No abstract provided.

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Laryngeal Mask Airway Insertion Anaesthesia And Insertion Techniques, Abdul Monem, Fauzia A. Khan Dec 2007

Laryngeal Mask Airway Insertion Anaesthesia And Insertion Techniques, Abdul Monem, Fauzia A. Khan

Department of Anaesthesia

Laryngeal Mask Airway has gained wide acceptance for routine airway management, difficult airway and in emergency situations. The classical method of insertion was recommended by Dr Brain. Over the years various induction and insertion techniques have been described with variable results. Combination of induction agents with narcotics, with or without small dose muscle relaxants has been found to be very effective. There is less also lesser incidence of mucosal trauma with partially inflated cuff. Insertion with cuff facing laterally or backwards and rotating it forwards into position has also been described. A review of various options and their advantages and …

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Conversion Of Biomass Resource To Useful Forms Of Energy And Other Products, Latosha Johnson Dec 2007

Conversion Of Biomass Resource To Useful Forms Of Energy And Other Products, Latosha Johnson

Chemical Engineering Undergraduate Honors Theses

The United States is facing increasing pressure to find renewable energy sources due to rising energy costs. With world energy demand at an all time high, renewable energy has been thrust into the forefront of research as a means to mitigate this looming crisis. Throughout the United States, there is a large quantity of agricultural biomass that could be used to generate energy and lessen the dependence on diminishing resources. Specifically, animal feeding operations (AFOs) such as dairies generate large amounts of cow manure, which, when improperly handled, causes both air and water pollution. Currently, most manure is temporarily stockpiled …

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Energy Efficient Removal Of Tds From Ro Reject And Cooling Tower Blowdown, Heath Himstedt, Meredith Bruick, Matthew Correnti, Seth Huber, Pettus Kincannon, Mai Sayarath Dec 2007

Energy Efficient Removal Of Tds From Ro Reject And Cooling Tower Blowdown, Heath Himstedt, Meredith Bruick, Matthew Correnti, Seth Huber, Pettus Kincannon, Mai Sayarath

Chemical Engineering Undergraduate Honors Theses

The southwestern United States, specifically the Albuquerque, NM area, was chosen as the target location for implementation of the Project ZERO design due to the volume of electronics manufacturing facilities in the area and the critical need to conserve water. The WERC RO reject sample, believed to originate in chemical mechanical polishing, contains high amounts of silica, trace heavy metals, and salt compounds that would negatively impact water quality if it were discharged into surface waters. Because of the high levels of silica, special precaution must be taken when utilizing membrane or mechanical evaporation technologies due to fouling and scaling …

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