Digital Commons Network^™

A Mathematical Model For A Lithium–Sulfur Cell, Karthikeyan Kumaresan, Yuriy Mikhaylik, Ralph E. White

Faculty Publications

A mathematical model is presented for a complete lithium–sulfur cell. The model includes various electrochemical and chemical (precipitation) reactions, multicomponent transport phenomena in the electrolyte, and the charge transfer within and between solid and liquid phases. A change in the porosity of the porous cathode and separator due to precipitation reactions is also included in the model. The model is used to explain the physical reasons for the two-stage discharge profiles that are typically obtained for lithium–sulfur cells.

Responsive In-Season Nitrogen Management For Cereals, J.F. Shanahan, N. R. Kitchen, W. R. Raun, James S. Schepers

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

Current nitrogen (N) management strategies for worldwide cereal production systems are characterized by low N use efficiency (NUE), environmental contamination, and considerable ongoing debate regarding what can be done to improve N fertilizer management. Development of innovative strategies that improve NUE and minimize off-field losses is crucial to sustaining cereal-based farming. In this paper, we review the major managerial causes for low NUE, including (1) poor synchrony between fertilizer N and crop demand, (2) uniform field applications to spatially variable landscapes that commonly vary in crop N need, and (3) failure to account for temporally variable influences on crop N …

Asas Centennial Paper: Net Energy Systems For Beef Cattle – Cattles, Application, And Future Models, Calvin Ferrell, J. W. Oltjen

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

Development of nutritional energetics can be traced to the 1400s. Lavoisier established relationships among O₂ use, CO₂ production and heat production in the late 1700s, and the laws of thermodynamics and law of Hess were discovered during the 1840s. Those discoveries established the fundamental bases for nutritional energetics and enabled the fundamental entity ME = retained energy + heat energy to be established. Objectives became: 1) to establish relationships between gas exchange and heat energy, 2) to devise bases for evaluation of foods that could be related to energy expenditures, and 3) to establish causes of energy expenditures. …

Research Supporting Technology Education- Task Force 2.4 Final Report, Philip A. Reed, Jim Carlson, Fred Figliano, Hal Harrison, Hyuksoo Kwon, Johnny Moye, Phyllis Opare, John M. Ritz, Roger Skophammer, John Wells

STEMPS Faculty Publications

(First paragraph) ITEA's Board of Directors convened a task force in 2006 to identify research on technology teaching and learning. The resulting database is designed to help teachers, supervisors, and anyone that needs to show research support for technology education. The research was compiled by the following task force members:

Spectrum 2008, Saint Mary's College Of California

The Undergraduate Spectrum

No abstract provided.

Using A Contingency-Based Method For Combining Individual Assessment Center Dimension Ratings Into Overall Assessment Ratings, Keisha Wicks

Electronic Theses and Dissertations

The current study applies a newly proposed mechanical combination method along with four traditional mechanical combination methods to assessment center scoring. These comparisons were made for two job levels (Fire Lieutenant and Fire Captain). The study further assesses the level of adverse impact for the various methods at three cut-off scores. Results indicated that the new contingency-based scoring method was successfully implemented in the assessment center. Results were mixed regarding whether the contingencies developed for the two job levels were different. Further, results indicated that although the various combination methods were highly correlated as expected, there were clear distinctions in …

The Effects Of Choice On Assignment Completion And Percent Correct By A High School Student With A Learning Disability, D. Stenhoff, B. J. Davey, Benjamin Lignugaris / Kraft

Special Education and Rehabilitation Counseling Faculty Publications

The effects of choosing between two academic assignments on task completion and percent correct by a ninth grade student with a learning disability was investigated. This case study extended the efficacy of antecedent based intervention as an instructional modification. Further, the study extends previous research by investigating the effect of choice on academic achievement. The withdrawal design showed that percent completed and correct were highest when the participant was given a choice between two assignments when compared to baseline conditions. Results are discussed in term of efficacy of choice as an antecedent intervention, choice selection, and future research directions.

A New Design For The Hudson Community School District's Website, Shannon Michelle Horn

Honors Program Theses

Technology is increasingly becoming a bigger and more important part of our daily lives. Especially in such institutions as the public education system, the Internet is becoming more widely used as a source of information and a means of communication between the district and parents, students, the community, and even teachers. The Internet, and all forms of technology, is increasingly becoming the primary way people access information, especially in education. As more and more schools are depending on the Internet to promote their schools, they are in tum becoming dependent on how outsiders view their website as a first impression …

A Scanning Microscope Platform For High Resolution Nonlinear Imaging And Laser Direct Writing, Shuangyang Yang

Graduate Theses and Dissertations

No abstract provided.

Social Politics And Freedom: Incorporating Civil Society Into Arendt's Political Thought, Grant J. Rozeboom

Honors Program Theses

The possibility of human freedom has captivated philosophers throughout the ages, often leading them to conclude that freedom is a unique capacity of humanity, exemplifying our potential for politics, contemplation, and/or religious salvation. In the modern age, beginning with the political writings of Thomas Hobbes and John Locke, freedom has been understood (at least within the early liberal tradition and common discourse) as unhindered and individuated economic movement, motivated by self-interest and actualized most fully in institutions such as the consumerist free market. Yet, we find that the more we devote our actions to fulfilling our individual interests and needs, …

Krepa6 Is An Rna-Binding Protein Essential For Editosome Integrity And Survival Of Trypanosoma Brucei, Salvador Zipagun Tarun Jr., Achim Schnauffer, Nancy Lewis Ernst, Rosemary Proff, Junpeng Deng, William Hol, Kenneth Stuart, K.

Biology

Most mitochondrial mRNAs in kinetoplastid protozoa require post-transcriptional RNA editing that inserts and deletes uridylates, a process that is catalyzed by multiprotein editosomes. KREPA6 is the smallest of six editosome proteins that have predicted oligonucleotide-binding (OB) folds. Inactivation of KREPA6 expression results in disruption and ultimate loss of ∼20S editosomes and inhibition of procyclic form cell growth. Gel shift studies show that recombinant KREPA6 binds RNA, but not DNA, with a preference for oligo-(U) whether on the 3′ end of gRNA or as a (UU)12 homopolymer. Thus, KREPA6 is essential for the structural integrity and presence of ∼20S editosomes and …

Characterization Of Temperature Dependent Nonlinear Optical Properties Of Semiconductor Materials, Vincent M. Cowan

Graduate Theses and Dissertations

No abstract provided.

Evaluating Forest Harvesting To Reduce Its Hydrologic Impact With A Spatial Decision Support System, Yanli Zhang, P. K. Barten, Ramanathan Sugumaran

Faculty Publications

Timber harvesting changes the condition of forest ecosystems, which are a major influence on the characteristics of headwater streams. Such characteristics include the quantity and timing of base flow and storm flow, concentrations of sediment and dissolved nutrients, water temperature, and the stability of the stream channels. This paper explores previous studies dealing with the relationship between timber harvesting and its hydrologic effects, especially long term water yield increase. The watershed disturbance threshold theory is raised and investigated in detail. The development and evaluation of a spatial decision support system, the Harvest Schedule Review System (HSRS), is then described. The …

Inhibition Of Cellular Thioredoxin Reductase By The Anticancer Prodrug Cloretazine, Tyler R. Schleicher

Honors Theses

Sulfonylhydrazines are a class of DNA alkylating drugs which also produce carbamoylating activity in situ. The carbamoylating species is of significance because it has shown to inhibit important thiol-containing enzymes such as glutathione reductase (GR) and thioredoxin reductase (TrxR). TrxR catalyzes dithiol-disulfide exchange reactions on thioredoxin (Trx), which in turn catalyzes other reductive processes such as deoxyribonucleotide biosynthesis. In this study, we demonstrate that TrxR activity is strongly inhibited by the anticancer prodrug Cloretazine both in purified form and in leukemia cell lysates. This inhibition is specific to the carbamoylating activity of methylisocyanate (MiC). In contrast, another important oxidoreductase, glutathione …

Transcript, Originalism And Criminal Law And Procedure, 2005 National Lawyer's Convention

Chapman Law Review

No abstract provided.

Glacial Ecosystems, Amy Hodson, Alexandre M. Anesio, Martyn Tranter, Andrew G. Fountain, Mark Osborn, John Charles Priscu, Johanna Laybourn-Perry, Birgit Sattler

Geography Faculty Publications and Presentations

There is now compelling evidence that microbially mediated reactions impart a significant effect upon the dynamics, composition, and abundance of nutrients in glacial melt water. Consequently, we must now consider ice masses as ecosystem habitats in their own right and address their diversity, functional potential, and activity as part of alpine and polar environments. Although such research is already underway, its fragmentary nature provides little basis for developing modern concepts of glacier ecology. This paper therefore provides a much-needed framework for development by reviewing the physical, biogeochemical, and microbiological characteristics of microbial habitats that have been identified within glaciers and …

Assessment Of Favorable Conditions And Potentials Of Salinity Gradients In Solar Ponds (Sgsps) And The Production Of Solar Salt Along Abu Dhabi Coasts, Huda Ali Mohammed Saeed Al Mansouri

Theses

Coastal sabkha area of Abu Dhabi extends about 300km long and 15 km wide. It consist of a series of hypersaline (47%) lagoons surrounded by salt-entrusted flat sabkhas. Temperature there may reach 60° C in the summer. Moreover, the salinity of the lagoons is very high and may reach 70%.

The objective of this study was to assess the possibility of utilizing salinity gradient in solar ponds and/or production of solar salt along Abu Dhabi coasts. This study was conducted in sabkha area which extends from Al Mafraq-Al Sil’a Highway, near the Satellites Station (kilo 255, Dy 17 Street) until …

Electrical Imaging Hydro Chemical And Isotope Investigation Of Mubazarah Area In Uae (Al-Ain), Faris Mirghani Mahgoub

Theses

No abstract provided.

Concept Detection: Convergence To Local Features And Opportunities Beyond, Shih-Fu Chang, Junfeng He, Yu-Gang Jiang, Elie El Khoury, Chong-Wah Ngo, Akira Yanagawa, Eric Zavesky

Research Collection School Of Computing and Information Systems

No abstract provided.

Program Assessment: A Structured, Systematic, Sustainable Example For Civil Engineers, Allen C. Estes, Ronald W. Welch, Stephen J. Ressler

Architectural Engineering

As the outcomes-based accreditation process continues to evolve since its implementation six years ago, the standards for program assessment and continuous improvement are progressively being raised and many schools struggle with what is required. This paper offers an example of a structured, systematic, sustainable assessment program implemented by the civil engineering program at the United States Military Academy. The process is compatible with the university assessment process and has eight years of documented results. The assessment includes fast loop and slow loop cycles that accomplish very different things. Other features include standardized course assessments, embedded indicators, performance measures for all …

Christianity And The Legal Status Of Abandoned Children In The Later Roman Empire, Joshua C. Tate

Faculty Journal Articles and Book Chapters

Late Roman imperial legislation relating to abandoned or exposed children has been the subject of much debate. Some have argued that the constitutions of Constantine relating to abandoned children marked a new Christian influence, and that the years between Constantine and Justinian merely refined and explained Constantine's legislation. This paper argues that the legislation of Constantine was not distinctly Christian in content, but that some Christian influence can be seen in the rhetoric of imperial constitutions beginning in the fifth century, and that Christian ideas seem to have affected both the substance and the rhetoric of Justinian's legislation. The paper …

Taxation Of Supernormal Returns, David Elkins, Christopher H. Hanna

Faculty Journal Articles and Book Chapters

In the last ten to fifteen years, a number of articles have been written on the differences between a normative income tax system and a normative consumption tax system, with much of the discussion focusing on the taxation of the risk-free rate of return and the risk premium from an investment. As is generally accepted, under certain assumptions an accrual income tax system taxes the risk-free rate of return on capital but does not tax the risk premium, while a cash-flow consumption tax system (or a wage tax system) taxes neither the risk-free rate of return nor the risk premium. …

Factors Associated With Successful Hispanic Students In Higher Education, Ana G. Linares

UNF Graduate Theses and Dissertations

The Hispanic population in the United States already constitutes the fastest growing minority group in the United States and by the year 2050 this group will constitute 24% of the total population and one fourth of the national workforce. Because this is a very young population whose median age is 27.2 years old, the education of this group is pivotal to the future of this nation. The purpose of this study was to examine the perceived importance of personal and external factors found in the literature as significant in Hispanic college success for a sample of 137 Hispanic college seniors …

Factors Affecting Road Mortality Of White-Tailed Deer In Eastern South Dakota, Troy W. Grovenburg, Jonathan A. Jenks, Robert W. Klaver, Kevin L. Monteith, Dwight H. Galster, Ron J. Schauer, Wilbert W. Morlock, Joshua A. Delger

Human–Wildlife Interactions

White-tailed deer (Odocoileus virginianus) mortalities (n = 4,433) caused by collisions with automobiles during 2003 were modeled in 35 counties in eastern South Dakota. Seventeen independent variables and 5 independent variable interactions were evaluated to explain deer mortalities. A negative binomial regression model (Ln Y = 1.25 – 0.12 [percentage tree coverage] + 0.0002 [county area] + 5.39 [county hunter success rate] + 0.0023 [vehicle proxy 96–104 km/hr roads], model deviance = 33.43, χ2 = 27.53, df = 27) was chosen using a combination of a priori model selection and AICc. Management options include use of the model …

The Oil Drilling Model And Iterative Deepening Genetic Annealing Algorithm For The Traveling Salesman Problem, Hoong Chuin Lau, Fei Xiao

Research Collection School Of Computing and Information Systems

In this work, we liken the solving of combinatorial optimization problems under a prescribed computational budget as hunting for oil in an unexplored ground. Using this generic model, we instantiate an iterative deepening genetic annealing (IDGA) algorithm, which is a variant of memetic algorithms. Computational results on the traveling salesman problem show that IDGA is more effective than standard genetic algorithms or simulated annealing algorithms or a straightforward hybrid of them. Our model is readily applicable to solve other combinatorial optimization problems.

สมเด็จพระเจ้าพี่นางเธอ ฯ กับงานด้านสิ่งแวดล้อม

Thai Environment

No abstract provided.

ทางเลือกในการลดปริมาณคาร์บอนไดออกไข่ จากแหล่งผลิตเพื่อบรรเทาภาวะโลกร้อน, กษิดิศ หนูทอง, ประเสิรฐ ภวสันต์

Thai Environment

No abstract provided.

การขับสารมลพิษควันบุหรี่ บนวัสดุภายในอาคาร, มณีรัตน์ องค์วรรณดี

Thai Environment

No abstract provided.

Lsuhsc Facilities Biweekly Update: January 2008, Lsuhsc Property And Facilities Management

LSUHSC Facilities Biweekly Updates: 2008

LSUHSC Facilities Biweekly Updates from January 4 and 18, 2008.

These updates describe damage and a timeline of repairs at the LSU Health Sciences Center - New Orleans campus due to Hurricane Katrina which made landfall August 29, 2005.

Lsuhsc Facilities Daily Update: January 2008, Lsuhsc Property And Facilities Management

LSUHSC Facilities Daily Updates: 2008

LSUHSC Dailly Facilities Updates from January 2008.

These updates describe damage and a timeline of repairs at the LSU Health Sciences Center - New Orleans campus due to Hurricane Katrina which made landfall August 29, 2005.