Digital Commons Network^™

A Multiple Objective Optimization Approach To The Decommissioning And Dismantling Of A Nuclear Power Plant., Sven Sudholt 1974-

Electronic Theses and Dissertations

The complexity, relevance and critical nature of the decommissioning of nuclear power plants (NPP) are of great significance in today's society. Following the catastrophe in Fukushima a shift in the general public's perception of NPP took place throughout the world and in Europe in particular. In this dissertation interdisciplinary methods will be discussed to identify solutions which take into account the technological complexity and organizational issues involved in the dismantling and decommissioning process of NPP. Operations research, lean management, simultaneous engineering, cost analysis, multiple-objective optimization, project management, software tools are powerful concepts and methodologies when undertaking the dismantling and decommissioning …

Discursive Affordances : Police, Transfer, And The Performance Of Identity., Robert John Terry

Electronic Theses and Dissertations

This dissertation is an analysis of how the performance of identity affects the possibilities for the transfer of writing strategies. It begins with a literature review of the existing research on transfer within the field of composition and posits that an undertheorized understanding of identity may be leading to misunderstandings related to the transfer of knowledge. It then provides a framework for understanding the performance of identity developed through James Paul Gee's Discourse theory and provides a framework for understanding and identifying Discourse conflicts related to the performance of identity. After providing an overview of the research site, the Administrative …

A Cost Model For Managing Producer And Consumer Risk In Availability Demonstration Testing., Randall L. Walker

Electronic Theses and Dissertations

Evaluation and demonstration of system performance against specified requirements is an essential element of risk reduction during the design, development, and production phases of a product lifecycle. Typical demonstration testing focuses on reliability and maintainability without consideration for availability. A practical reason considers the fact that demonstration testing for availability cannot be performed until very late in the product lifecycle when production representative units become available and system integration is completed. At this point, the requirement to field the system often takes priority over demonstration of availability performance. Without proper validation testing, the system can be fielded with reduced mission …

A Microreactor Approach For Chemoselective Capture And Analysis Of Carbonyl Compounds In Air And Exhaled Breath., Mingxiao Li

Electronic Theses and Dissertations

Detection of volatile organic compounds (VOCs) at trace level (parts per billion volume (ppbv) to parts per trillion (pptv)) has become an important research area because of demanding applications in homeland security, environmental monitoring, and noninvasive diagnosis of diseases. The analysis of trace VOCs challenges existing analytical instruments because their concentrations are beyond current instrument limits of detection. In this dissertation, we have investigated an innovative microreactor that is suitable for quantitative analysis of volatile carbonyl compounds in ambient air as well as in human exhaled breath. The approach is based on microreactor chips fabricated from four inch silicon wafers. …

Piezoelectric Bedload Impact Sensor (Pbis) For Particle Size Distribution., Jeong Won Park 1977-

Electronic Theses and Dissertations

A multi-channel Piezoelectric Bedload Impact Sensor (PBIS) is developed to estimate mass and particle-size distribution of bedload in low to moderate slope natural streams. The PBIS’s stand-alone design with a sufficiently large data memory facilitates continuous long-term monitoring for low-scale bedload measurements. The design concept of PBIS is based on a hypothesis that particle collision energy on the PBIS plate increases with hydraulic energy and particle size. Thus, particle size can be differentiated by the number of impulses registered in four different threshold channels. The feasibility of PBIS was evaluated by developing a calibration model based on laboratory flume experiments. …

Geometric Modeling Of Non-Rigid 3d Shapes : Theory And Application To Object Recognition., Mostafa Abdelrahman

Electronic Theses and Dissertations

One of the major goals of computer vision is the development of flexible and efficient methods for shape representation. This is true, especially for non-rigid 3D shapes where a great variety of shapes are produced as a result of deformations of a non-rigid object. Modeling these non-rigid shapes is a very challenging problem. Being able to analyze the properties of such shapes and describe their behavior is the key issue in research. Also, considering photometric features can play an important role in many shape analysis applications, such as shape matching and correspondence because it contains rich information about the visual …

Developing Advanced Mathematical Models For Detecting Abnormalities In 2d/3d Medical Structures., Ahmed Abd-Elrahman Elnakib

Electronic Theses and Dissertations

Detecting abnormalities in two-dimensional (2D) and three-dimensional (3D) medical structures is among the most interesting and challenging research areas in the medical imaging field. Obtaining the desired accurate automated quantification of abnormalities in medical structures is still very challenging. This is due to a large and constantly growing number of different objects of interest and associated abnormalities, large variations of their appearances and shapes in images, different medical imaging modalities, and associated changes of signal homogeneity and noise for each object. The main objective of this dissertation is to address these problems and to provide proper mathematical models and techniques …

Effect Of Slope And Paver Characteristics On Performance Of Permeable Pavement Gi., Amirhossein Ehsaei 1986-

Electronic Theses and Dissertations

This dissertation is an experimental study based on the findings of two Green Infrastructure (GI) stormwater control measures (SCMs) in Louisville, KY, which focused on the effects of the physical environment on the performance of GI. The GI installed in Louisville are suffering from extensive and rapid surface clogging and in order to optimize current and future GI, an understanding of the factors affecting the performance of the system is required. The study used the current literature to determine the surrounding factors and those of the permeable surface that had not been investigated enough, and used several configurations of GI …

A Non-Invasive Method For Measuring Blood Flow Rate In Superficial Veins From A Single Thermal Image., Heba E. Farag

Electronic Theses and Dissertations

Computer vision is a field that includes methods for processing, analyzing, acquiring and understanding images to produce numerical or symbolic information to develop methodologies and solutions for many problems in many fields. Here the concept of computer vision is being used for understanding certain human physiology and behaviors using thermal imaging alone or in conjunction with other imaging modalities. The applications of this work span a wide range of studies in human-machine interfacing vis-à-vis feedback controls that can be used to remotely determine whether a patient is in need of medical assistance or to help integrate young children with learning …

Southern Honor, Confederate Warfare : Southern Antebellum Cultural Values In Confederate Military Operations, 1861-1865., Matthew D. Goldberg

Electronic Theses and Dissertations

This thesis examines the role antebellum southern cultural paradigms played in Confederate military operations during the American Civil War. The prewar honor culture of the white southern male elite was intensely focused on chivalric values of courage, masculinity, piety, pride, contempt for cowardice, and loyalty. When war broke out between the United States and Confederacy, the southern elite moved from their prewar position as economic, political, and social leaders to military commanders. The violent and militaristic culture that characterized the prewar southern elite guided their actions as the military leadership of the Confederacy. Using the written record of the Confederate …

Optimization Models For Resource Allocation Under Perturbation., Dongxue Bridgeman 1986-

Electronic Theses and Dissertations

Optimization Models for Resource allocation are investing in how to make the best use of available but limited resources in order to achieve the best results. In strategic planning, resource allocation is a plan for using available resources, especially in the near future, to achieve the goals of the future. It is a process of allocating resources during the entire planning horizon and among the various units. Resource allocation plans can be decided by using mathematical programming. In this dissertation, the research has been focused on how to allocate resources in the uncertain environment. The mathematical programming formulations for the …

Post-Mortem Analysis Of Cortical Thickness And Neuronal Morphometry In Autism., Shweta Sunil Kamat

Electronic Theses and Dissertations

Autism Spectrum Disorders (ASD) are a group of conditions characterized by a broad spectrum of deficiencies related to social communication, both verbal and non-verbal, as well as repetitive behaviors such as rocking back and forth, or arm flapping. This devastating group of disorders affects millions of people regardless of their socioeconomic, ethnic and racial backgrounds. Among other issues such as migraines, sensory deficits and intense aggression, epilepsy is a major neurological disorder very highly associated with ASD; roughly one third of all ASD patients are diagnosed with epilepsy, and a much higher proportion suffer from at least one seizure in …

Development Of Concrete Incorporating Phase Change Materials For Enhanced Energy Efficiency., Jeffrey Dee Kiesel

Electronic Theses and Dissertations

Thermal mass incorporated into the building envelope has the ability to attenuate peak interior diurnal temperature fluctuations and energy flow, provide interior thermal phase shifts, and absorb surplus energy from solar gains as well as internal gains created by occupants, lighting, appliances and electronics. Heating and cooling demands can be reduced and delayed by thermally massive building envelopes. Historically, thermal mass has been achieved using thick, dense building envelopes such as stone, adobe, and mass concrete. These massive walls absorb heat during the day keeping the interior cool, then release the stored heat during the night maintaining interior comfort. The …

Artificial Neural Network Used For Short Term Wind Speed Prediction, Alexandra Lodge

Electrical Engineering

No abstract provided.

Scitech Book News Reviews, Susan Fingerman

Sci-Tech News

No abstract provided.

Full Issue, Vol. 67, Issue 4

Sci-Tech News

No abstract provided.

Broadcasting With Prediction And Selective Forwarding In Vehicular Networks, Jainjun Yang, Zongming Fei

Computer Science Faculty Publications

Broadcasting in vehicular networks has attracted great interest in research community and industry. Broadcasting on disseminating information to individual vehicle beyond the transmission range is based on inter-vehicle communication systems. It is crucial to broadcast messages to other vehicles as fast as possible because the messages in vehicle communication systems are often emergency messages such as accident warning or alarm. In many current approaches, the message initiator or sender selects the node among its neighbors that is farthest away from it in the broadcasting direction and then assigns the node to rebroadcast the message once the node gets out of …

Development And Verification Of A Test System To Quantify Strain Of An Optical Displacement Indicator And The Design Of A Strain Indicating Prototype, Josh Lake

All Theses

The organic-rich Middle Devonian Marcellus Shale of the Appalachian basin is a rapidly developing natural gas play. Stratigraphic boundaries of the Marcellus Shale in Westmoreland County, Pennsylvania were identified using geophysical logs from 10 vertical gas-producing wells in a 23 sq. km area. Gamma-ray, bulk density, and resistivity well logs were examined to assess hydrocarbon potential. Values of porosity, total organic carbon (TOC), and water saturation (SW) were derived and mapped by incorporating well-log data into Marcellus-specific formulas. Gamma-ray, penetration (minutes per foot drilled), and mud-logging gas (total gas) from 12 horizontal wells from within the study area were also …

A Guide To Testing A Proportion When There May Be Misclassifications, David L. Farnsworth, Jonathan R. Bradley

Articles

Ignoring possible misclassifications when testing for a proportion can lead to erroneous decisions. A statistical test is described that incorporates misclassification rates into the analysis. Easily checked safeguards that ensure that the test is appropriate are given. Additionally, the test provides a procedure when the hypothesis stipulates that the proportion is zero. Applications of the test are illustrated with examples which show that it is practical. Comprehensive guidance is supplied for the practitioner.

Iowa Waste Reduction Center Newsletter, December 2013, University Of Northern Iowa. Iowa Waste Reduction Center.

Iowa Waste Reduction Center Newsletter

Contents:

--- Another Year Has Come and Gone
--- Most Popular Reads of 2013
--- 2014 Recordkeeping Compliance Calendars Available
--- Reducing Wasted Food Workshop
--- Health Care - Food Waste Webinar
--- On-Site Review Revisit
--- Latest Blog Posts

Notes From The Director, The Mcnair Team

McNair Scholars Research Journal

No abstract provided.

About The Mcnair Scholars Program, The Mcnair Team

McNair Scholars Research Journal

No abstract provided.

Exact Solutions To The Korteweg-De Vries Equation, Alicia Ricci

McNair Scholars Research Journal

No abstract provided.

Full Issue, The Mcnair Team

McNair Scholars Research Journal

No abstract provided.

Dual Capture Of A Piñon Deer Mouse And A Silky Pocket Mouse Resulting In Consumption Of The Smaller Animal, Jon C. Pigage, Roger D. Peyton

The Prairie Naturalist

Intraspecific dual captures of rodents are uncommon, but not rare. There are several reports of brown rats (Rattus norvegicus), white-footed deer mice (Peromyscus leucopus), North American deer mice (P. maniculatus), western harvest mice (Reithrodontomys megalotis) and meadow voles (Microtus pennsylvanicus) caught simultaneously in the same trap (i.e. a door-closing live-trap; Davis 1955, Getz 1961, Blaustein and Rothstein 1978, Jenkins and Llewellyn 1981, Novak 1983). Some reports are incidental whereas others are interpreted as social associations or bonding between conspecifics. Interspecific dual captures are rarely reported in the literature. The earliest report of …

A Simple Device For Measuring The Minimum Current Velocity To Maintain Semi-Buoyant Fish Eggs In Suspension, Julias S. Mueller, Brandon D. Cheek, Qingman Chen, Jillian Groeschel, Shannok K. Brewer, Timothy B. Grabowski

The Prairie Naturalist

Pelagic broadcast spawning cyprinids are common to Great Plains rivers and streams. This reproductive guild produces non-adhesive semi-buoyant eggs that require sufficient current velocity to remain in suspension during development. Although studies have shown that there may be a minimum velocity needed to keep the eggs in suspension, this velocity has not been estimated directly nor has the influence of physicochemical factors on egg buoyancy been determined. We developed a simple, inexpensive flow chamber that allowed for evaluation of minimum current velocity needed to keep semi-buoyant eggs in suspension at any time frame during egg development. The device described here …

Red-Tailed Hawk Nesting In Kansas: Influence Of Landscape Characteristics, William Langley

The Prairie Naturalist

Factors that affect nest site selection in red-tailed hawks (Buteo jamaicensis) include the physical features surrounding the nest and landscape characteristics. Features surrounding nests include: tree height, tree diameter (dbh), percent canopy cover, slope, nest openness, and density of woody plants or shrubs (Titus and Mosher 1981, Bechard et al. 1990, Tietje et al. 1997, Actkinson et al. 2007). Landscape characteristics that influence nest-site selection by red-tailed hawks vary across regions. In Georgia, red-tailed hawks selected nest site in areas with greater area of agriculture and open pasture (Moorman and Chapman 1996), whereas in Oklahoma prairies, the hawks …

Use Of Seeded Exotic Grasslands By Wintering Birds, Andrew D. George, Timothy J. O'Connell, Karen R. Hickman, David M. Lesliee Jr.

The Prairie Naturalist

Despite widespread population declines of North American grassland birds, effects of anthropogenic disturbance on wintering habitat of this guild remain poorly understood. We compared avian abundance and habitat structure in fields planted to the exotic grass Old World bluestem (Bothriochloa ischaemum; OWB) to that in native mixed-grass prairie. During winters of 2007–2008 and 2008–2009, we conducted bird and vegetation surveys in six native grass and six OWB fields in Garfield, Grant, and Alfalfa counties, Oklahoma. We recorded 24 species of wintering birds in native fields and 14 species in OWB monocultures. While vegetation structure was similar between field …

Whooping Cranes Consume Plains Leopard Frogs At Migratory Stopover Sites In Nebraska, Keith Geluso, Brad T. Krohn, Mary J. Harner, Michael J. Assenmacher

The Prairie Naturalist

Whooping cranes (Grus americana) currently consist of a single, wild population that migrates annually from breeding grounds at Wood Buffalo National Park, Canada, to wintering grounds on and around the Aransas National Wildlife Refuge along the Texas coast, USA (NRC 2005). This population reached a low of less than 20 individuals in 1941 (Allen 1952) but has rebounded to over 250 individuals (Chavez-Ramirez and Wehtje 2012, Gil-Weir et al. 2012). Whooping cranes migrate approximately 4,000 km each spring and autumn, traversing much of the North American Great Plains (Lewis 1995) and periodically landing along rivers, wetlands, and other …

Changes On Cran, Kurt Hornik, Achim Zeileis

The R Journal

New CRAN task views

New packages in CRAN task views

New contributed packages

Other changes