Digital Commons Network^™

Corrosion Damage Studies Through Microscopy And Stress Analysis, Ronak Patel

Theses and Dissertations

Corrosion is the destructive result of chemical reaction between a metal or metal alloy and its environment. Airplanes, power generating plants, chemical process and manufacturing plants, concrete structure, and many others which widely uses aluminum alloy and stainless steel alloys are subjected to corrosion. The estimated cost of corrosion damage is in order of 3 to 5 percent of gross national product (GNP). Out of all forms of corrosion, pitting corrosion is most commonly observed in aluminum alloy 2024 and stainless steel type 316. There is a need to study the stress environment around the pits in order to predict …

Computer-Aided Trauma Decision Making Using Machine Learning And Signal Processing, Soo-Yeon Ji

Theses and Dissertations

Over the last 20 years, much work has focused on computer-aided clinical decision support systems due to a rapid increase in the need for management and processing of medical knowledge. Among all fields of medicine, trauma care has the highest need for proper information management due to the high prevalence of complex, life-threatening injuries. In particular, hemorrhage, which is encountered in most traumatic injuries, is a dominant factor in determining survival in both civilian and military settings. This complication can be better managed using a more in-depth analysis of patient information. Trauma physicians must make precise and rapid decisions, while …

Volume 46, Number 14: November 19, 2008, University Of North Dakota

University Letter Archive

No abstract provided.

Modular, Distributed Spatial Metadata Repository On The Services Principle, Christopher C. Miller

GIS Day

Despite major improvements in GIS technologies in recent years, it remains particularly difficult to efficiently locate geospatial data. Purdue Libraries, in keeping with their efforts to build a distributed, cross-discipline data repository, is nearing an alpha release of a metadata portal through which large amounts of base data as well as Purdue-produced geospatial data can be located, downloaded or connected to. GIS Librarian Miller will discuss the project and how it might interact with existing campus systems.

Construction Of An Indiana Water Monitoring Inventory Using The Google Maps Api, Jae Sung Kim, Laura Esman, Jane Frankenberger

GIS Day

The Indiana Water Monitoring Inventory is a portal for locating water monitoring information conducted by a variety of government agencies and organizations in the state of Indiana. The goal of this project was to implement a web site through which potential users of monitoring information can find location and attributes of water monitoring sites. To accomplish this, the user interface was developed with Google Maps Application Programming Interface (API). Basic functionality of displaying geographic information, the database structure, loading data, interaction between PHP and Java Script and the user interface will be described in the presentation. The inventory can be …

Analysis Of Pump Oil And Alkanes Evaporation, Nathaniel A. Waldstein

USF Tampa Graduate Theses and Dissertations

There are many products, including hard drives, which require trace amounts, on the order of several mg, of lubricants for proper operation. The following study investigated the evaporation rates of pump oil and several alkanes, which have a wide range of applications, using a thermogravimetric machine. Both static and dynamic temperature tests were conducted. The rate of evaporation of the test specimen was determined as the percentage of mass loss per unit time. Using the Arrhenius Equation, the activation energy of the evaporation process, Ea, can be calculated as the slope of the best fit line for a plot of …

Pfisr Nightside Observations Of Naturally Enhanced Ion Acoustic Lines, And Their Relation To Boundary Auroral Features, R. G. Michell, K. A. Lynch, C. J. Heinselman, H. C. Stenbaek-Nielsen

Dartmouth Scholarship

We present results from a coordinated camera and radar study of the auroral ionosphere conducted during March of 2006 from Poker Flat, Alaska. The campaign was conducted to coincide with engineering tests of the first quarter installation of the Poker Flat Incoherent Scatter Radar (PFISR). On 31 March 2006, a moderately intense auroral arc, (~10 kR at 557.7 nm), was located in the local magnetic zenith at Poker Flat. During this event the radar observed 7 distinct periods of abnormally large backscattered power from the F-region. These were only observed in the field-aligned radar beam, and radar spectra from these …

Central Florida Future, Vol. 40 No. 105, November 19, 2008

Central Florida Future

Laughing gas to power two rockets; Central Florida Future Housing Fair hits UCF; Overall burglary reports on rise; 'Intern Queen' dishes her secret; Banquet to show levels of inequality; Team Fortress takes first win.

Neutralization-Sensitive R5 Shiv-2873nip Encoding Env From A Infant With Recent Hiv Clade C Infection, Nagadenahalli B. Siddappa, Ruijiang Song, Victor G. Kramer, Agnes-Laurence Chenine, Vijayakumar Velu, Helena Ong, Robert A. Rasmussen, Ricky D. Grisson, Charles Wood, Hong Zhang, Chipepo Kankasa, Rama Rao Amara, James G. Else, Francis J. Novembre, David Montefiori, Ruth M. Ruprecht

Nebraska Center for Virology: Faculty Publications

HIV-C (HIV-C) accounts for >56% of all HIV infections worldwide. To investigate vaccine safety and efficacy in non-human primates, a pathogenic, R5-tropic, neutralization sensitive simian-human immunodeficiency virus (SHIV) encoding HIV-C env would be desirable. We have constructed SHIV-2873Ni, an R5 SHIV encoding a primary pediatric HIV-C env isolated from a 2-month old Zambian infant, who progressed to death within one year of birth. SHIV-2873Ni was constructed using SHIV-1157ipd3N4 (Song et al., J. Viol. 80:8729-38, 2006) as backbone since the latter contains additional NF-κB sites in the long terminal repeats (LTRs) to enhance viral replicative capacity. The parental virus, SHIV-2873Ni, was …

Effect Of Initial Scarification And Overlay Treatment Timing On Chloride Concentrations In Concrete Bridge Decks, Curtis Daniel Nolan

Theses and Dissertations

Considering the pervasive presence of chlorides in concrete bridge decks, bridge engineers have a critical responsibility to perform proper and effective preventive maintenance and rehabilitation operations. Bridge engineers often perform scarification and overlay (SO) procedures on concrete bridge decks to minimize the corrosion of reinforcing steel due to chloride ingress. Given the need to develop guidelines for the initial timing of SO treatments, the specific objectives of this research were to collect information from several department of transportation (DOT) personnel about their SO procedures and, subsequently, to determine the recommended timing of initial SO procedures on concrete bridge decks for …

The Spinnaker Vol. 32 No. 16, University Of North Florida

Spinnaker

Student newspaper for the UNF community.

It's Happening At State: November 19, 2008

It's Happening at State

Provides summary information of news and events of interest to the faculty and staff of NDSU.

Women, Doctoral Degrees, And Technology: Female Doctoral Students Online, Adonica Schultz Aune

Theses and Dissertations

Women, Doctoral Degrees, and Computer Technology: Female Doctoral Students Online was conducted at a Midwestern university addressing the questions: (1) How do women use the computer during their doctoral work? (2) Why do women use the computer for their doctoral work? (3) When do women working on their doctoral work use the computer? and (4) Has the personal computer enabled the doctoral student to complete her Ph.D.? The investigation was conducted in three stages. Phase one was a pilot survey of 23 women in doctoral programs that provided descriptive data on how, how much, and when women in doctoral programs …

Extended Kalman Filter For Estimation Of Parameters In Nonlinear State-Space Models Of Biochemical Networks

Faculty, Staff and Student Publications

It is system dynamics that determines the function of cells, tissues and organisms. to develop mathematical models and estimate their parameters are an essential issue for studying dynamic behaviors of biological systems which include metabolic networks, genetic regulatory networks and signal transduction pathways, under perturbation of external stimuli. In general, biological dynamic systems are partially observed. Therefore, a natural way to model dynamic biological systems is to employ nonlinear state-space equations. Although statistical methods for parameter estimation of linear models in biological dynamic systems have been developed intensively in the recent years, the estimation of both states and parameters of …

The George-Anne, Georgia Southern University

The George-Anne

• American Diabetes Association Educates Students
• News
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Development Of Novel Biocompatible Hydrogel Coatings For Implantable Glucose Sensors, Chunyan Wang

USF Tampa Graduate Theses and Dissertations

Due to sensor -tissue interactions, currently none of the commercially available glucose sensors are capable of continuous, reliable monitoring of glucose levels during long-term implantation. In order to improve the lifetime of implanted glucose sensors, two series of biocompatible novel hydrogel coatings were designed, synthesized and the physical properties were measured.

Different hydrogels with various 2,3-dihydroxypropyl methacrylate (DHPMA) compositions were coated onto glucose sensors. Results show that the higher freezable water content, swelling rate and uniform porosity that resulted from high DHPMA content increased the sensitivity and shortened the response time of glucose sensors. The linear range of a glucose …

Personality Factors Influencing Bemidji State University Industrial Technology Majors Making Heavy Industrial Construction Career Choices, Timothy M. Brockman

Theses and Dissertations

The purpose of this study was to apply Holland's theory and gather information about Bemidji State University (BSU) construction management (CM) students, CM graduates, CM faculty, and the heavy industrial construction workforce for a greater understanding of students, the academic environment, and the heavy industrial construction environment. A secondary purpose was to help increase recruitment and retention of students within the CM emphasis of the Industrial Technology major at BSU, and provide support for development of curricula within the CM emphasis as it meets needs of the construction industry. The study examined five research questions using Holland's Self-Directed Search (SDS) …

Two Approaches To The Removal Of Heating Fuel Oil Trapped In Wood And Concrete: Bio- And Photoremediation. Characterization Of Lignans In Flaxseed By Hplc/Dad/Esi Tof Ms And Gc/Ms, Inna Eduardovna Popova Tyapochkin

Theses and Dissertations

Chemical contamination of buildings occurs as a result of storage, spills, and catastrophic floods. Over the time, contaminants slowly evaporate from the structural elements posing health risks. To develop a cost-effective and safe route to decontaminate and reuse the contaminated wood and concrete, studies including extraction of fuel oil hydrocarbons from wood and concrete, their transport and remediation were conducted. n-Hexadecane was quantative recovered from wood using sequential extraction with acetone followed by pentane; from ambient concrete using pentane; and from water-saturated concrete using 2-propanol. Transport of fuel oil hydrocarbons in wood can be described by a two-step model: fast …

Exploring Future Workforce Perceptions Of Leadership And Relationships, Brandon J. Semler

Theses and Dissertations

It is the aim of this study to increase available literature regarding leadership by identifying the most common perceptions of college students about leadership and relationships. With increased understanding of the perceptions of college student regarding leadership and relationships in comparison to definitions of leadership and relationships in current literature Will come improvements in communication strategies that aid in the training of future leaders in the organizational environment. College students at the University of North Dakota were interviewed about their perceptions of leadership and relationships using the focus group method. Qualitative analysis was used to discover common themes among these …

We Are…Marshall, November 18, 2005, Office Of Marshall University Communications

We Are ... Marshall: the Newsletter for Marshall University 1999-2023

No abstract provided.

Cal Poly's Society Of Women Engineers Reclaims Title As Best In The Nation, Public Affairs Office

Press Releases

No abstract provided.

Minutes, November 18, 2008

Agendas and Minutes

No abstract provided.

Agenda And Attachments, November 18, 2008

Agendas and Minutes

No abstract provided.

Spartan Daily, November 18, 2008, San Jose State University, School Of Journalism And Mass Communications

Spartan Daily (School of Journalism and Mass Communications)

Volume 131, Issue 43

Koenig Eng Inc V. Cent Transp Intl Inc

2008 Decisions

USDC for the Eastern District of Pennsylvania

Ceas E-News 11.18.2008, College Of Engineering And Applied Sciences

College of Engineering and Applied Sciences News

Tues., Dec. 2, conference to showcase 42 senior engineering projects

Domain Compliance And Elastic Power Transmission In Rotary F(O)F(1)-Atpase., Hendrik Sielaff, Henning Rennekamp, André Wächter, Hao Xie, Florian Hilbers, Katrin Feldbauer, Stanley D Dunn, Siegfried Engelbrecht, Wolfgang Junge

Biochemistry Publications

The 2 nanomotors of rotary ATP synthase, ionmotive F(O) and chemically active F(1), are mechanically coupled by a central rotor and an eccentric bearing. Both motors rotate, with 3 steps in F(1) and 10-15 in F(O). Simulation by statistical mechanics has revealed that an elastic power transmission is required for a high rate of coupled turnover. Here, we investigate the distribution in the F(O)F(1) structure of compliant and stiff domains. The compliance of certain domains was restricted by engineered disulfide bridges between rotor and stator, and the torsional stiffness (kappa) of unrestricted domains was determined by analyzing their thermal rotary …

Evolution Time And Energy Uncertainty, Timothy B. Boykin, Neerav Kharche, Gerhard Klimeck

Other Nanotechnology Publications

Often one needs to calculate the evolution time of a state under a Hamiltonian with no explicit time dependence when only numerical methods are available. In cases such as this, the usual application of Fermi’s golden rule and firstorder perturbation theory is inadequate as well as being computationally inconvenient. Instead, what one needs are conditions under which the evolution time may be obtained from the easily calculated energy uncertainty. This work derives some general conditions for obtaining the evolution time from the energy uncertainty.

Empirical Two-Point Α-Mixing Model For Calibrating The Ech2o Ec-5 Soil Moisture Sensor In Sands, Toshihiro Sakaki, Anuchit Limsuwat, Kathleen M. Smits, Tissa H. Illangasekare

Civil Engineering Faculty Publications - Archive

Recently improved ECH2O soil moisture sensors have received significant attention in many field and laboratory applications. Focusing on the EC-5 sensor, a simple and robust calibration method is proposed. The sensor-to-sensor variability in the readings (analog-to-digital converter (ADC) counts) among 30 EC-5 sensors was relatively small but not negligible. A large number of ADC counts were taken under various volumetric water contents (?) using four test sands. The proposed two-point a-mixing model, as well as linear and quadratic models, was fitted to the ADC – ? data. Unlike for conventional TDR measurements, the effect of sensor characteristics is lumped into …

Mustang Daily, November 18, 2008

Cal Poly Student Newspaper

Student newspaper of California Polytechnic State University, San Luis Obispo, CA.