Digital Commons Network^™

Developing Microscopic Toll Plaza Model Using Paramics, Nezamuddin Nezamuddin

Electronic Theses and Dissertations

Simulation modeling is the most cost-effective way of studying real life transportation problems, either existing or anticipated, without disturbing the balance of the transportation system. There is a vast suite of simulation models available in market, ready to choose from macroscopic, mesoscopic, or microscopic in nature, to study different transportation system elements like freeways, highways, signalized and un-signalized intersections. However, most of these network simulation models, like PARAMICS, VISSIM, CORSIM … etc, do not come readily available with built in toll plaza models. On the other hand, many researchers have independently developed toll plaza models, which can only model an isolated …

Bench Scale Analysis Of Experimental Fouling-Resistent Low Pressure Reverse Osmosis Membranes Using High Organic Surface Water And Synthetic Colloidal Water, Matthew Doan

Electronic Theses and Dissertations

The utilization of membrane treatment for the production of potable water has become more prevalent in today's industry. As drinking water regulations become more stringent this trend is expected to continue. Widespread use is also a result of membrane treatment being the best available treatment in many cases. While membrane treatment is a proven technology that can produce a consistently superior product to conventional treatment methods, membrane fouling and concentrate disposal are issues that drive up the cost of membrane treatment and can effectively eliminate it from consideration as a treatment alternative. This research focused on membrane fouling. A series …

Alumina-Aluminum Titanate-Titania Nanocomposite: Synthesis, Sintering Studies, Assessment Of Bioactivity And Its Mechanical And Electrical Properties, Vikas Somani

Electronic Theses and Dissertations

This thesis reports the development, synthesis and characterization of a ceramic-ceramic nanocomposite system for its possible application as structural and electronic biomaterial in the biomedical industry. The study selected and synthesized alumina-aluminum titanate-titania (Al2O3-Al2TiO5-TiO2) nanoceramic composite using a simple Sol-Gel technique, which can be easily reproduced. Aluminum propoxide and titanium propoxide were used as precursor chemicals. Propanol and 2- methoxy ethanol were used as solvent and stabilizer, respectively. Thermal analyses were performed for a systematic understanding of phase evolution from the synthesized gel. X-Ray diffraction technique was used to confirm the phase evolution, phase purity, crystallite size and crystal structure(s) …

Algorithms For Haplotype Inference And Block Partitioning, Satya Ravi Vijaya

Electronic Theses and Dissertations

The completion of the human genome project in 2003 paved the way for studies to better understand and catalog variation in the human genome. The International HapMap Project was started in 2002 with the aim of identifying genetic variation in the human genome and studying the distribution of genetic variation across populations of individuals. The information collected by the HapMap project will enable researchers in associating genetic variations with phenotypic variations. Single Nucleotide Polymorphisms (SNPs) are loci in the genome where two individuals differ in a single base. It is estimated that there are approximately ten million SNPs in the …

Influence Map Methodology For Evaluating Systemic Safety Issues, Timothy Barth

Electronic Theses and Dissertations

Raising the bar in safety performance is a critical challenge for many organizations. Contributing factor taxonomies organize information on why accidents occur. Therefore, they are essential elements of accident investigations and safety reporting systems. Organizations must balance efforts to identify causes of specific accidents with efforts to evaluate systemic safety issues in order to become more proactive about improving safety. This research successfully addressed two problems: (1) limited methods and metrics exist to support the design of effective taxonomies, and (2) influence relationships between contributing factors are not explicitly modeled within a taxonomy. The primary result of the taxonomic relationship …

Transmission Lines For Ir Signal Routing, Tasneem Mandviwala

Electronic Theses and Dissertations

In this dissertation, the design, fabrication, and characterization of coplanar striplines, vias, and microstrip lines is investigated, from the point of view of developing interconnections for antenna-coupled infrared detectors operating in the 8- to 12-micron wavelength range. To our knowledge, no previous efforts have been made to study the performance of metallic-wire transmission lines at infrared frequencies. Both the design and fabrication of these structures present unique challenges. Because of attenuation and dispersion issues, the analytical formulas for transmission-line parameters that are valid below a few hundred GHz are not applicable in the infrared. Therefore, numerical modeling was performed to …

The Effectiveness Of A Specifically Designed Green Roof Stormwater Treatment System Irrigated With Recycled Stormwater Runoff To Achieve Pollutant Removal And Stormwater Volume Reduction, Michael Hardin

Electronic Theses and Dissertations

One of our greatest threats to surface-water quality is polluted stormwater runoff. In this research, investigated is the use of a green roof irrigated with recycled stormwater runoff to remove pollutants from stormwater runoff and reduce the volume of stormwater runoff leaving developed areas. The green roof properties of interest are the filtration and biological processes as well as the roof's ability to hold water and increase evapotranspiration, reducing the volume of stormwater runoff from the source. Because of the above mentioned reasons the experiment consists of a water quality analysis and a water budget done on several experimental chambers …

The Effect Of Hot Carrier Stress On Low Noise Amplifier Radio Frequency Performance Under Weak And Strong Inversion, Lin Shen

Electronic Theses and Dissertations

This thesis work is mainly focused on studying RF performance degradation of a low noise amplifier (LNA) circuit due to hot carrier effect (HCE) in both the weak and strong inversion regions. Since the figures of merit for the RF circuit characterization are gain, noise figure, input, and output matching, the LNA RF performance drift is evaluated in a Cadence SpectreRF simulator subject to these features. This thesis presents hot carrier induced degradation results of an LNA to show that the HCE phenomenon is one of the serious reliability issues in the aggressively scaled RF CMOS design, especially for long-term …

Heuristic 3d Reconstruction Of Irregular Spaced Lidar, Nicholas Shorter

Electronic Theses and Dissertations

As more data sources have become abundantly available, an increased interest in 3D reconstruction has emerged in the image processing academic community. Applications for 3D reconstruction of urban and residential buildings consist of urban planning, network planning for mobile communication, tourism information systems, spatial analysis of air pollution and noise nuisance, microclimate investigations, and Geographical Information Systems (GISs). Previous, classical, 3D reconstruction algorithms solely utilized aerial photography. With the advent of LIDAR systems, current algorithms explore using captured LIDAR data as an additional feasible source of information for 3D reconstruction. Preprocessing techniques are proposed for the development of an autonomous …

Truly Non Invasive Glucose Optical Sensor Based On Metal Nanoparticles Generation, Marisol Garcia

Electronic Theses and Dissertations

Diabetes is a disease that causes many complications in human normal function. This disease represents the sixth-leading cause of death in USA. Prevention of diabetes-related complications can be accomplished through tight control of glucose levels in blood. In the last decades many different glucose sensors have been developed, however, none of them are really non invasive. Herein, we present the study of the application of gold and silver nanoparticles with different shapes and aspect ratios to detect glucose traces in human fluids such as tears and sweat. This is to our knowledge the first truly non invasive glucose optical sensor, …

Syntax-Based Concept Extraction For Question Answering, Demetrios Glinos

Electronic Theses and Dissertations

Question answering (QA) stands squarely along the path from document retrieval to text understanding. As an area of research interest, it serves as a proving ground where strategies for document processing, knowledge representation, question analysis, and answer extraction may be evaluated in real world information extraction contexts. The task is to go beyond the representation of text documents as "bags of words" or data blobs that can be scanned for keyword combinations and word collocations in the manner of internet search engines. Instead, the goal is to recognize and extract the semantic content of the text, and to organize it …

Iterchanging Discrete Event Simulationprocess Interaction Modelsusing The Web Ontology Language - Owl, Lee Lacy

Electronic Theses and Dissertations

Discrete event simulation development requires significant investments in time and resources. Descriptions of discrete event simulation models are associated with world views, including the process interaction orientation. Historically, these models have been encoded using high-level programming languages or special purpose, typically vendor-specific, simulation languages. These approaches complicate simulation model reuse and interchange. The current document-centric World Wide Web is evolving into a Semantic Web that communicates information using ontologies. The Web Ontology Language – OWL, was used to encode a Process Interaction Modeling Ontology for Discrete Event Simulations (PIMODES). The PIMODES ontology was developed using ontology engineering processes. Software was …

A Hybrid Simulation Methodology To Evaluate Network Centricdecision Making Under Extreme Events, Sergio Quijada

Electronic Theses and Dissertations

Currently the network centric operation and network centric warfare have generated a new area of research focused on determining how hierarchical organizations composed by human beings and machines make decisions over collaborative environments. One of the most stressful scenarios for these kinds of organizations is the so-called extreme events. This dissertation provides a hybrid simulation methodology based on classical simulation paradigms combined with social network analysis for evaluating and improving the organizational structures and procedures, mainly the incident command systems and plans for facing those extreme events. According to this, we provide a methodology for generating hypotheses and afterwards testing …

Dordt College 2006-2007 Catalog, Dordt College. Registrar's Office

Academic Catalogs

Academic Catalog for 2006-2007

The U.K. Courts, The Common Law Approach And The Application Of E.C. Law, Gunnar Beck

Penn State International Law Review (1982 - 2011)

No abstract provided.

Cyber-Terrorism: Legal Principle And Law In The United Kingdom, Clive Walker

Dickinson Law Review (1908-2003)

No abstract provided.

Front Cover, The Delmarva Ornithological Society

Delaware Ornithologist

No abstract provided.

Presidents Corner, Bob

Delaware Ornithologist

No abstract provided.

Wilmington Marsh Survey 1999-2000, Sara O'Byrne

Delaware Ornithologist

No abstract provided.

Portrait De L'Utilisation Des Produits À Base D'Acrylates En Milieux De Travail Québécois, Brigitte Roberge, Yves Cloutier, Jean-Luc Malo

Rapports de recherche scientifique

Les produits à base d’acrylates sont très utilisés dans plusieurs secteurs d’activité économique à cause de leur propriété adhésive. Par contre, leur utilisation peut causer une sensibilisation allergique dont les manifestations cutanées ont été décrites dès les années 40. Ces produits sont considérés, depuis une quinzaine d’années, comme responsables de rhinoconjonctivite et d’asthme professionnels. Certains cas ont déjà été diagnostiqués au Québec. Des tests de provocation bronchique faits de façon réaliste ont parfois été utilisés.

L’utilisation des produits à base de substances de la famille des acrylates a été documentée à partir d’une revue de la littérature scientifique, de la …

Books And Letters Vol. 20, No. 1, University Libraries, Molly Boyd, Anne Marie Candido, Tom W. Dillard, Juana R. Young, Beth Juhl, Tim Nutt, Russell Cothren, Don Batson

Books and Letters

Alice Walker Biographer Speaks at Mullins; Special Collections Laboratory Dedicated to Goldsby Family; From Lightning Bug to Pitcher Shower: 30 Years of Stay More; The Stay Moron's Oath; Reference Librarian Publishes Book; Folklorist Mary C. Parler’s Life and Work Remembered; Library Receives Valuable Thomas Merton Collection; Interview with the Collector; Artists Picture History in Recent Exhibits; Calder Mobiles Displayed; New Online Resources; Margaret Smith Ross Papers Opened to Researchers; Event Honors Arkansas Photographer; Library Personnel Key to New Arkansas Encyclopedia

The Influence Of Significant Others On High School Students’ Expectancies, Task Value, And Motivation In Physical Education, Skip M. Williams

Dissertations and Theses @ UNI

In physical education, students perform physical activities among their peers and teachers. Some students are highly skilled, while others are developing their skill, and some just do not participate at all. It has been questioned why one child would approach a new opportunity with excitement and enthusiasm and another child (with the same opportunity) would have anxiety and self-doubt. The purpose of the study was to examine the influence of significant others on high school students' expectancies for success, task value, and motivation in physical education class. Specifically, this study examined perceived influence of significant others' beliefs on students': expectancies …

Dances Of Courtship And Other Stories, Katherine Ware Volmensky Gannett

Dissertations and Theses @ UNI

This thesis is a collection of short stories mainly written in dialect. The locale of the stories is Orkney, an island group located in the Atlantic Ocean, between the north coast of Scotland and the Shetland Islands. The historical period is the 1890s.

Handful Of Dust: Poems & Memoir, Kimberly Jo Groninga

Dissertations and Theses @ UNI

Handful of Dust is a collection of poetry and memoir which travels through a number of subjects including trees, family, dreams, death, song, sex, and silence. Weaving through the collection is the idea that what we hold in our hands-bits of memory, cakes of earth with dangling roots, understandings and perceptions-is a place to begin. In a palmful of tiny particles, images and connections emerge. And they begin to tell the story of who we are. Identity, indeed, is the primary theme of many of the pieces within this collection.

Effects Of External Rewards On Elementary Students’ Motivation To Read Independently, Benjamin David Olsen

Dissertations and Theses @ UNI

In an age of increased accountability, even down to how well, and how much, students read independently, teachers are looking for ways to motivate students to read. One popular way schools and teachers have looked to increase motivation is with reading incentive programs. Despite this widespread enthusiasm for such programs there has not been solid, replicable research that has supported the continued use of incentive programs to increase students' future motivation to read. This study examined how a reading incentive program affected students' motivation and attitudes toward reading and the time they spent reading. Research was guided by the following …

Completely Explosive Autonomous High-Voltage Pulsed-Power System Based On Shockwave Ferromagnetic Primary Power Source And Spiral Vector Inversion Generator, Sergey I. Shkuratov, Evgueni F. Talantsev, Jason Baird, Millard F. Rose, Zachary Shotts, Z. Roberts, Allen H. Stults, Larry L. Altgilbers

Mining Engineering Faculty Research & Creative Works

Novel explosive and conventional pulsed-power technologies were combined, and a series of explosive-driven high-voltage power supplies was designed, built, and tested. The power supply contained an explosive-driven high-voltage primary power source based on the fundamental physical effect of shockwave demagnetization of Nd₂ Fe₁₄B high-energy ferromagnet and a power-conditioning stage. The volume of the energy-carrying ferromagnetic elements in the shockwave ferromagnetic generators (FMGs) was 8.75 cm³. The power-conditioning stage was based on the spiral vector inversion generator (VIG). The combined FMG-VIG system demonstrated successful operation and good performance. The output-voltage pulse amplitude of the combined FMG-VIG …

Pulse Charging Of Capacitor Bank By Explosive-Driven Shock Wave Ferroelectric Generator, Sergey I. Shkuratov, Evgueni F. Talantsev, Jason Baird, Allen H. Stults, Larry L. Altgilbers

Mining Engineering Faculty Research & Creative Works

Ultracompact explosive-driven shock wave ferroelectric generators (FEGs) were used as autonomous primary power sources for charging capacitor banks of different capacitance. The FEGs utilized longitudinal (when the shock wave propagates along the polarization vector P) shock wave depolarization of Pb(Zr₅₂Ti₄₈)O₃ (PZT) polycrystalline ferroelectric ceramic. PZT disks having diameters ranging from 25 to 27 mm and three different thicknesses: 0.65, 2.1, and 5.1 mm. It was experimentally shown that during the charging process the FEGs were capable of producing pulsed power with peak amplitudes up to 0.3 MW. Results for charging voltage, electric charge transfer and …

Completely Explosive Ultracompact High-Voltage Nanosecond Pulse-Generating System, Sergey I. Shkuratov, Evgueni F. Talantsev, Jason Baird, Millard F. Rose, Zachary Shotts, Larry L. Altgilbers, Allen H. Stults

Mining Engineering Faculty Research & Creative Works

A conventional pulsed power technology has been combined with an explosive pulsed power technology to produce an autonomous high-voltage power supply. The power supply contained an explosive-driven high-voltage primary power source and a power-conditioning stage. The ultracompact explosive-driven primary power source was based on the physical effect of shock-wave depolarization of high-energy Pb(Zr52Ti48)O3 ferroelectric material. The volume of the energy-carrying ferroelectric elements in the shock-wave ferroelectric generators (SWFEGs) varied from 1.2 to 2.6 cm3. The power-conditioning stage was based on the spiral vector inversion generator (VIG). The SWFEG-VIG system demonstrated successful operation and good performance. The amplitude of the output …

Electrostatic Active Radiation Shielding -- Revisited, John W. Wilson, R. K. Tripathi, R. C. Youngquist

Mining Engineering Faculty Research & Creative Works

For the success of NASA's new vision for space exploration to Moon, Mars and beyond, exposures from the hazards of severe space radiation in deep space long duration missions is ''a must solve'' problem The payload penalty demands a very stringent requirement on the design of the spacecrafts for human deep space missions. Langley has developed state-of-the-art radiation protection and shielding technology for space missions. The exploration beyond low Earth orbit (LEO) to enable routine access to space require protection from the hazards of the accumulated exposures of space radiation, galactic cosmic rays (GCR) and solar particle events (SPE), and …

Mapping Ground Conditions Before The Development Of An Underground Hard Rock Mine - Mcarthur River Uranium Mine Case Study, Derek Apel, P. Szmigiel

Mining Engineering Faculty Research & Creative Works

No abstract provided.