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2010

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Articles 1651 - 1680 of 24313

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Electrochemical Investigation Of Azurin Thermodynamic And Adsorption Properties At Monolayer-Protected Cluster Film Assemblies – Evidence For A More Homogeneous Adsorption Interface, Tran Doan, Morgan Lynn Vargo, John K. Gerig, Chris P. Gulka, Matthew L. Trawick, Jonathan D. Dattelbaum, Michael C. Leopold Dec 2010

Electrochemical Investigation Of Azurin Thermodynamic And Adsorption Properties At Monolayer-Protected Cluster Film Assemblies – Evidence For A More Homogeneous Adsorption Interface, Tran Doan, Morgan Lynn Vargo, John K. Gerig, Chris P. Gulka, Matthew L. Trawick, Jonathan D. Dattelbaum, Michael C. Leopold

Chemistry Faculty Publications

Thermodynamic and adsorption properties of protein monolayer electrochemistry (PME) are examined for Pseudomonas aeruginosa azurin (AZ) immobilized at an electrode modified with a networked film of monolayer-protected clusters (MPCs) to assess if nanoparticle films of this nature offer a more homogeneous adsorption interface compared to traditional self-assembled monolayer (SAM) modified electrodes. Specifically, electrochemistry is used to assess properties of surface coverage, formal potential, peak broadening, and electron transfer (ET) kinetics as a function of film thickness. The modification of a surface with dithiol-linked films of MPCs (Au225C675) provides a more uniform binding interface for AZ that results in voltammetry with …

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The Present Plight Of The United States District Courts, Patrick E. Higginbotham Dec 2010

The Present Plight Of The United States District Courts, Patrick E. Higginbotham

Duke Law Journal

No abstract provided.

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Evaluation Of Protein Backbone Alphabets : Using Predicted Local Structure For Fold Recognition, Kyong Jin Shim Dec 2010

Evaluation Of Protein Backbone Alphabets : Using Predicted Local Structure For Fold Recognition, Kyong Jin Shim

Research Collection School Of Computing and Information Systems

Optimally combining available information is one of the key challenges in knowledge-driven prediction techniques. In this study, we evaluate six Phi and Psi-based backbone alphabets. We show that the addition of predicted backbone conformations to SVM classifiers can improve fold recognition. Our experimental results show that the inclusion of predicted backbone conformations in our feature representation leads to higher overall accuracy compared to when using amino acid residues alone.

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A New Extension Model: The Memorial Middle School Agricultural Extension And Education Center, Peter Skelton, Brenda Seevers Dec 2010

A New Extension Model: The Memorial Middle School Agricultural Extension And Education Center, Peter Skelton, Brenda Seevers

Journal of Extension

The Memorial Middle School Agricultural Extension and Education Center is a new model for Extension. The center applies the Cooperative Extension Service System philosophy and mission to developing public education-based programs. Programming primarily serves middle school students and teachers through agricultural and natural resource science education. Programming efforts provide students with knowledge-based information that is high in content, context, and engagement. This approach serves center goals to cultivate young scientists through hands-on activities, improve student performance through research, and develop a center relevant to the local community agriculture and natural resource needs.

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2-D Path Planning For Direct Laser Deposition Process, Swathi Routhu, Divya Kanakanala, Jianzhong Ruan, Xiaoqing Frank Liu, Frank Liou Dec 2010

2-D Path Planning For Direct Laser Deposition Process, Swathi Routhu, Divya Kanakanala, Jianzhong Ruan, Xiaoqing Frank Liu, Frank Liou

Computer Science Faculty Research & Creative Works

The zigzag and offset path have been the two most popular path patterns for tool movement in machining process. Different from the traditional machining processes, the quality of parts produced by the metal deposition process is much more dependent upon the choice of deposition paths. Due to the nature of the metal deposition processes, various tool path patterns not only change the efficiency but also affect the deposition height, a critical quality for metal deposition process. This paper presents the research conducted on calculating zigzag pattern to improve efficiency by minimizing the idle path. the deposition height is highly dependent …

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A Comprehensive Rocket And Radar Study Of Midlatitude Spread F, G.D. Earle, P. Bhaneja, P.A. Roddy, C.M. Swenson, A. Barjatya, R. L. Bishop, Et. Al Dec 2010

A Comprehensive Rocket And Radar Study Of Midlatitude Spread F, G.D. Earle, P. Bhaneja, P.A. Roddy, C.M. Swenson, A. Barjatya, R. L. Bishop, Et. Al

Publications

An instrumented sounding rocket launched from Wallops Island Virginia has flown through a midlatitude spread F (MSF) event in conjunction with simultaneous ionosonde, HF radar, and 244 MHz scintillation observations from the ground. The in situ measurements include the electric field, horizontal neutral wind, and plasma density within the spread F region. The ground‐based HF radar measurements of wave signatures in the bottomside F region ledge reveal the presence of waves propagating to the north and northwest prior to and during the spreading event. The periods of these bottomside waves range from 16 to 60 min, and they are shown …

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Product Technical Information, Steel Stud Manufacturers Association Dec 2010

Product Technical Information, Steel Stud Manufacturers Association

CCFSS Library (1939 - present)

No abstract provided.

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Finite Horizon Markov Control With One-Step Variance Penalties, Abhijit Gosavi Dec 2010

Finite Horizon Markov Control With One-Step Variance Penalties, Abhijit Gosavi

Engineering Management and Systems Engineering Faculty Research & Creative Works

Variance-penalized Markov decision processes (MDPs) for an infinite time horizon have been studied in the literature for asymptotic and one-step variance; in these models, the objective function is generally the expected long-run reward minus a constant time the variance, where variance is used as a measure of risk. for the finite time horizon, asymptotic variance has been considered in Collins [1], but this model accounts for only a terminal reward, i.e., reward is earned at the end of the time horizon. in this paper, we seek to develop a framework for one-step variance in the finite time horizon in which …

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A Comparative Study Of Diversity In Evolutionary Algorithms, Jayakanth Jayachandran, Steven Corns Dec 2010

A Comparative Study Of Diversity In Evolutionary Algorithms, Jayakanth Jayachandran, Steven Corns

Engineering Management and Systems Engineering Faculty Research & Creative Works

For many evolutionary algorithms a key obstacle to finding the global optima is insufficient solution diversity, causing the algorithm to become mired in a local optimum. Solution diversity can be influenced by algorithm parameters including population size, mutation operator and diversity preservation techniques. This study examines the combined effect of population size, mutation value and the geography imposed by the combinatorial graphs on a set of five standard evolutionary algorithm problems. a tradeoff can be seen between the initial diversity of the population size, introduction of new diversity from mutation, and the preservation of diversity from combinatorial graph. with an …

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Barriers And Best Practices For Material Management In The Healthcare Sector, Carlos Callender, Scott Erwin Grasman Dec 2010

Barriers And Best Practices For Material Management In The Healthcare Sector, Carlos Callender, Scott Erwin Grasman

Engineering Management and Systems Engineering Faculty Research & Creative Works

The primary focus of the healthcare sector has been to provide patients with the best quality of care. Recently, the escalating cost of supplies and the severe competition among healthcare providers has significantly increased the pressure on material managers to operate more cost-efficiently without compromising high patient care standards. While other sectors have experienced success through the deployment of supply chain management practices, the healthcare sector has not seen major improvements in this area; however, in spite of the uniqueness and complexity of the healthcare supply chain, opportunities for improvements are plentiful. This article provides an assessment of material management …

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A Reinforcement Learning Approach For Inventory Replenishment In Vendor-Managed Inventory Systems With Consignment Inventory, Zheng Sui, Abhijit Gosavi, Li Lin Dec 2010

A Reinforcement Learning Approach For Inventory Replenishment In Vendor-Managed Inventory Systems With Consignment Inventory, Zheng Sui, Abhijit Gosavi, Li Lin

Engineering Management and Systems Engineering Faculty Research & Creative Works

In a Vendor-Managed Inventory (VMI) system, the supplier makes decisions of inventory management for the retailer; the retailer is not responsible for placing orders. There is a dearth of optimization models for replenishment strategies for VMI systems, and the industry relies on well-understood, but simple models, e.g., the newsvendor rule. in this article, we propose a methodology based on reinforcement learning, which is rooted in the Bellman equation, to determine a replenishment policy in a VMI system with consignment inventory. We also propose rules based on the newsvendor rule. Our numerical results show that our approach can outperform the newsvendor. …

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Information Portals: The Next Generation Catalog, Deeann Allison Dec 2010

Information Portals: The Next Generation Catalog, Deeann Allison

University of Nebraska-Lincoln Libraries: Faculty Publications

Libraries today face an increasing challenge: to provide relevant information to diverse populations with differing needs, while competing with Web search engines like Google. In 2009 the University of Nebraska-Lincoln (UNL) Libraries joined with other libraries and Innovative Interfaces as development partners to design a new type of discovery tool. Information portals as a concept best supports the research and instructional needs of our communities by organizing and presenting information that incorporates licensed databases, text, multimedia, and other relevant sources. The discovery tool under examination by UNL, Encore, integrates searches of the catalog, locally created full-text and image sources, and …

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A Methodology For Implementing Rf Bists In Production Testing To Replace Rf Conventional Tests, Deepa Mannath Dec 2010

A Methodology For Implementing Rf Bists In Production Testing To Replace Rf Conventional Tests, Deepa Mannath

Graduate Theses and Dissertations

Production testing of Radio Frequency (RF) devices is challenging due to the complex nature of the tests that have to be performed to verify functionality. In this dissertation a methodology to replace the complex and expensive RF functional tests with defect-oriented Built-in Self Tests (BiSTs) is detailed. If a design has sufficient margin to RF specifications then RF tests can be replaced with structural tests using a new data analysis technique called quadrant analysis, which is presented. Data from the analysis of over one million production units of said System on Chip (SoC) is presented along with the results of …

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Barred Windows And Uncaged Birds: The Enclosure Of Women In Chrétien De Troyes And Marie De France, Jean-Marie Kauth Dec 2010

Barred Windows And Uncaged Birds: The Enclosure Of Women In Chrétien De Troyes And Marie De France, Jean-Marie Kauth

Medieval Feminist Forum: A Journal of Gender and Sexuality

No abstract provided.

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Spirit Of The Law: A Case Study In The Application Of Nagpra To Collections From Hopewell Culture National Historical Park, A Unit Of The National Park Service, Keely A. Rennie-Tucker Dec 2010

Spirit Of The Law: A Case Study In The Application Of Nagpra To Collections From Hopewell Culture National Historical Park, A Unit Of The National Park Service, Keely A. Rennie-Tucker

Department of Anthropology: Theses and Student Research

This thesis offers a case study in applying the Native American Graves Protection and Repatriation Act (NAGPRA) to collections maintained at the National Park Service’s Hopewell Culture National Historical Park (HOCU) from the perspective of a museum curator. Hopewell Culture National Historical Park, a complex of various burial mound and earthwork sites dating primarily to the Middle Woodland (2,200 BP - AD 400), is located near Chillicothe, Ohio. The collections here have many culturally unidentifiable Native American human remains and funerary objects eligible for repatriation under the provisions of the Native American Graves Protection and Repatriation Act (NAGPRA). The archaeological …

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How An Organization's Environmental Orientation Impacts Environmental Performance And Its Resultant Financial Performance Through Green Computing Hiring Practices: An Empirical Investigation Of The Natural Resource-Based View Of The Firm, Andrew Aken Dec 2010

How An Organization's Environmental Orientation Impacts Environmental Performance And Its Resultant Financial Performance Through Green Computing Hiring Practices: An Empirical Investigation Of The Natural Resource-Based View Of The Firm, Andrew Aken

Dissertations

This dissertation uses the logic embodied in Strategic Fit Theory, the Natural Resource-Based View of the Firm (NRBV), strategic human resource management, and other relevant literature streams to empirically demonstrate how the environmental orientation of a firm's strategy impacts their environmental performance and resultant financial performance through the firm's Information Technology hiring practices. Specifically, it was hypothesized that firms with a strong relationship between the environmental orientation of their strategy and their green computing hiring practices will achieve higher environmental performance, and, as a result, higher levels of financial performance than firms lacking such fit. The organization's environmental orientation was …

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Ecology And Management Of White-Tailed Deer In An Agricultural Landscape: Analyses Of Hunter Efficiency, Survey Methods, And Ecology, Charles Wayne Anderson Dec 2010

Ecology And Management Of White-Tailed Deer In An Agricultural Landscape: Analyses Of Hunter Efficiency, Survey Methods, And Ecology, Charles Wayne Anderson

Dissertations

Current research is necessary to focus management of white-tailed deer (Odocoileus virginianus) in the agricultural Midwest, especially given the novel presence of chronic wasting disease in the region. My objectives were to: 1) examine the potential effects of weather and row-crop harvest on daily harvest of white-tailed deer by archery, and individual hunter variables (e.g., age, weapon preference, preference of hunting method) on individual hunter efficiency and success in 2 regions of Illinois (i.e., east-central and southern Illinois); 2) estimate white-tailed deer densities using direct (i.e., spotlighting deer from road transects) and indirect (i.e., counting pellet groups on randomly-placed transects) …

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The Impacts Of Federal Stimulus Funding Under The American Recovery And Reinvestment Act (Arra) On The Economy Of New Mexico, Lee A. Reynis, Doleswar Bhandari Dec 2010

The Impacts Of Federal Stimulus Funding Under The American Recovery And Reinvestment Act (Arra) On The Economy Of New Mexico, Lee A. Reynis, Doleswar Bhandari

BBER Publications

A study commissioned by the NM Office of Recovery and Reinvestment to assess the impacts of the American Recovery and Reinvestment Act (ARRA) on New Mexico's economy. The ARRA provided resources to state and local economies through four primary methods: tax relief provided to individuals and businesses, aid to directly impacted individuals and families, fiscal stabilization to help maintain levels of government spending for key services, and stimulus projects. This report presents the economic impacts of ARRA supported expenditures from the enactment of the law on 19 February 2009 through the final end date for ARRA projects on 30 September …

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Ultrafast Time Domain Optics Of Single-Cycle Laser Pulse Interaction With Materials, Ufuk Parali Dec 2010

Ultrafast Time Domain Optics Of Single-Cycle Laser Pulse Interaction With Materials, Ufuk Parali

Department of Electrical and Computer Engineering: Dissertations, Theses, and Student Research

In this thesis, interaction of an ultrashort single-cycle pulse (USCP) with a bound electron without ionization is studied for the first time. For a more realistic mathematical description of USCPs, Hermitian polynomials and combination of Laguerre functions are used for two different single-cycle excitation cases. These single-cycle pulse models are used as driving functions for the classical approach to model the interaction of a bound electron with an applied field. Two different new novel time domain modification techniques are developed for modifying the classical Lorentz damped oscillator model in order to make it compatible with the USCP excitation. In the …

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Modeling And Simulation Of Tunable Photonic Crystals, Weiqing Yang Dec 2010

Modeling And Simulation Of Tunable Photonic Crystals, Weiqing Yang

Department of Electrical and Computer Engineering: Dissertations, Theses, and Student Research

Photonic crystals (PhCs) have wavelength scale periodically alternating refractive indexes. Photon in such structures is subject to strong scattering, experiencing distinctive redistribution of energy, yielding interesting properties such as photonic band gaps, field enhancement, strong nonlinear optic effects and photon confinement. The modified fields also alter the propagation of light beams. By proper setup, super collimation could be realized in PhCs where beams can travel long distance without spreading, while no waveguide structure is used. Redirection of light can extend the refraction to negative range, without violating physics rules. This distinguished phenomenon has been envisioned as the core mechanism for …

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Generalized Ellipsometry On Sculptured Thin Films Made By Glancing Angle Deposition, Daniel Schmidt Dec 2010

Generalized Ellipsometry On Sculptured Thin Films Made By Glancing Angle Deposition, Daniel Schmidt

Department of Electrical and Computer Engineering: Dissertations, Theses, and Student Research

In this thesis, physical properties of highly optically and magnetically anisotropic metal sculptured thin films made by glancing angle deposition are presented. Predominantly, the determination of optical and magneto-optical properties with spectroscopic generalized Mueller matrix ellipsometry and homogenization approaches is discussed. Nomenclatures are proposed to unambiguously identify the sculptured thin film geometry.

Generalized ellipsometry, a non-destructive optical characterization technique, is employed to determine geometrical structure and anisotropic dielectric properties of highly spatially coherent three-dimensionally nanostructured thin films in the spectral range from 400 to 1700 nm. The analysis of metal slanted columnar thin films (F1-STFs) deposited at glancing angle ( …

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Topical Summarization Of Web Videos By Visual-Text Time-Dependent Alignment, Song Tan, Hung-Khoon Tan, Chong-Wah Ngo Dec 2010

Topical Summarization Of Web Videos By Visual-Text Time-Dependent Alignment, Song Tan, Hung-Khoon Tan, Chong-Wah Ngo

Research Collection School Of Computing and Information Systems

Search engines are used to return a long list of hundreds or even thousands of videos in response to a query topic. Efficient navigation of videos becomes difficult and users often need to painstakingly explore the search list for a gist of the search result. This paper addresses the challenge of topical summarization by providing a timeline-based visualization of videos through matching of heterogeneous sources. To overcome the so called sparse-text problem of web videos, auxiliary information from Google context is exploited. Google Trends is used to predict the milestone events of a topic. Meanwhile, the typical scenes of web …

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Opportunistic Routing In Wireless Sensor Networks Powered By Ambient Energy Harvesting, Zhi Ang Eu, Hwee-Pink Tan, Winston K. G. Seah Dec 2010

Opportunistic Routing In Wireless Sensor Networks Powered By Ambient Energy Harvesting, Zhi Ang Eu, Hwee-Pink Tan, Winston K. G. Seah

Research Collection School Of Computing and Information Systems

Energy consumption is an important issue in the design of wireless sensor networks (WSNs) which typically rely on portable energy sources like batteries for power. Recent advances in ambient energy harvesting technologies have made it possible for sensor nodes to be powered by ambient energy entirely without the use of batteries. However, since the energy harvesting process is stochastic, exact sleep-and-wakeup schedules cannot be determined in WSNs Powered solely using Ambient Energy Harvesters (WSN–HEAP). Therefore, many existing WSN routing protocols cannot be used in WSN–HEAP. In this paper, we design an opportunistic routing protocol (EHOR) for multi-hop WSN–HEAP. Unlike traditional …

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Proceedings Of 3rd Asian Preventive Cardiology And Cardiac Rehabilitation Conference Cum 8th Certificate Course In Cardiac Rehabilitation Dec 2010

Proceedings Of 3rd Asian Preventive Cardiology And Cardiac Rehabilitation Conference Cum 8th Certificate Course In Cardiac Rehabilitation

Journal of the Hong Kong College of Cardiology

No abstract provided.

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Ambiguity Now, Martin Harrison Dec 2010

Ambiguity Now, Martin Harrison

CLCWeb: Comparative Literature and Culture

In his article "Ambiguity Now" Martin Harrison focuses on the pivotal place which modernist critical theory ascribed to ambiguity in the definition of meaning and structure in poetry. In particular, Harrison considers the way in which the category of experience is deployed in the discourse of ambiguity but is limited to only certain narratives of so-called experience. Harrison argues for a contemporary practice less focused on ambiguity and more on notation and provisional structure, demonstrating key elements of such practice in the work of modern poets Leslie Scalapino and Frank Bidart and the poet-artist Alex Selenitsch.

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Influence Of Topography Of Endovascular Stent Material On Smooth Muscle Cell Response, Vipul Taneja Dec 2010

Influence Of Topography Of Endovascular Stent Material On Smooth Muscle Cell Response, Vipul Taneja

All Theses

Although implantation of endovascular stents for the treatment of coronary and peripheral artery diseases has been one of the most rapidly used medical interventions, significant limitations in terms of a restenosis rate of 10-30% still persists. Neointimal hyperplasia characterized by a phenotypic shift of smooth muscle cells from contractile to synthetic type, has been deemed to be the predominant cause of restenosis. A number of stent surface parameters, including topography, have been attributed to play an important role in stent performance. Although endothelial cell and thrombotic response to surface roughness have been well evaluated, the effect of topography of the …

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Conceptual Model Testing And Development For Neptunium And Radium Sorption To Srs Sediments, Todd Miller Dec 2010

Conceptual Model Testing And Development For Neptunium And Radium Sorption To Srs Sediments, Todd Miller

All Theses

Models which can estimate environmental transport of contaminants are required to ensure minimal risk to the public. These models require accurate transport parameters in order to correctly predict how these contaminants will move in the subsurface. This work aimed to determine more accurately the distribution coefficients for neptunium, strontium, and radium for the Savannah River Site (SRS) Performance Assessment (PA). All neptunium sorption studies were performed at a pH value of 5.50 and an ionic strength of 0.01M as NaCl with neptunium concentrations ranging from 0.01 to 50 ppb. Two different sediments were examined, SRS Subsurface Clayey and SRS Subsurface …

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Vena Cava As An Alternative To Pericardium In Bioprosthetic Percutaneous Heart Valves, Amy Munnelly Dec 2010

Vena Cava As An Alternative To Pericardium In Bioprosthetic Percutaneous Heart Valves, Amy Munnelly

All Theses

Valve disease is a specialized form of cardiovascular disease that specifically affects the heart valves. Heart valves serve the vital function of maintaining unidirectional blood flow through the chambers of the heart during the cardiac cycle; however, as valve disease progresses, this function can become severely compromised [1]. Currently, the only cure for valve disease is to replace the defective valve with an engineered substitute. Each year, over 300,000 heart valve replacement surgeries are performed worldwide [2], and this number is expected to continue growing as life expectancies increase [3].
In the United States, the most common form of valve …

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Sysml-Based Domain-Specific Executable Workflows, Vikas Patel Dec 2010

Sysml-Based Domain-Specific Executable Workflows, Vikas Patel

All Theses

The Systems Modeling Language (SysML) is a general-purpose graphical modeling language for specifying, analyzing, designing, and verifying complex systems. This thesis presents a tool called SysFlow Workflow Engine (SWE) that is being developed to execute a domain workflow defined using SysML's Activity Diagram. The thesis also describes extensions added to the SysML semantics to make them SWE executable. SWE focuses on grid computing, cyberinfrastructure and related domains; however, support for other domains can be easily added. SWE aims to provide a common interface to grid, cyberinfrastructure and other domain-specific software by abstracting their complexity and idiosyncrasies. To create a workflow, …

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Biofuel Ethanol Production By Saccharomyces Bayanus, The Champagne Yeast, Kristen Miller Dec 2010

Biofuel Ethanol Production By Saccharomyces Bayanus, The Champagne Yeast, Kristen Miller

All Theses

The importance of biofuel ethanol is growing as the demand for clean, renewable fuels produced from non-food sources increases. The United States relies mainly on corn and the yeast Saccharomyces cerevisiae for the production of ethanol. A shift to cellulosic feedstocks, as the main source of biomass for ethanol production, would alleviate the pressure on farmers to produce corn for both the food industry and the ethanol industry. Example cellulosic feedstocks include switchgrass, sorghum, and canary grass. The cellulosic feedstocks are typically grown on land that cannot support economic food production, and thus lay unused.
For cellulosic feedstocks to be …

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