Resource Type

NEAMS Update. Quarterly Report for October - December 2012 (open access)

NEAMS Update. Quarterly Report for October - December 2012

None
Date: March 12, 2013
Creator: Bradley, K.
Object Type: Report
System: The UNT Digital Library
Study of Multi-Scale Cloud Processes Over the Tropical Western Pacific Using Cloud-Resolving Models Constrained by Satellite Data (open access)

Study of Multi-Scale Cloud Processes Over the Tropical Western Pacific Using Cloud-Resolving Models Constrained by Satellite Data

Clouds in the tropical western Pacific are an integral part of the large scale environment. An improved understanding of the multi-scale structure of clouds and their interactions with the environment is critical to the ARM (Atmospheric Radiation Measurement) program for developing and evaluating cloud parameterizations, understanding the consequences of model biases, and providing a context for interpreting the observational data collected over the ARM Tropical Western Pacific (TWP) sites. Three-dimensional cloud resolving models (CRMs) are powerful tools for developing and evaluating cloud parameterizations. However, a significant challenge in using CRMs in the TWP is that the region lacks conventional data, so large uncertainty exists in defining the large-scale environment for clouds. This project links several aspects of the ARM program, from measurements to providing improved analyses, and from cloud-resolving modeling to climate-scale modeling and parameterization development, with the overall objective to improve the representations of clouds in climate models and to simulate and quantify resolved cloud effects on the large-scale environment. Our objectives will be achieved through a series of tasks focusing on the use of the Weather Research and Forecasting (WRF) model and ARM data. Our approach includes: -- Perform assimilation of COSMIC GPS radio occultation and other satellites …
Date: March 12, 2013
Creator: Dudhia, Jimy
Object Type: Report
System: The UNT Digital Library
Final Report for DOE grant DE-FG02-07ER64432 "New Grid and Discretization Technologies for Ocean and Ice Simulations" (open access)

Final Report for DOE grant DE-FG02-07ER64432 "New Grid and Discretization Technologies for Ocean and Ice Simulations"

The work reported is in pursuit of these goals: high-quality unstructured, non-uniform Voronoi and Delaunay grids; improved finite element and finite volume discretization schemes; and improved finite element and finite volume discretization schemes. These are sought for application to spherical and three-dimensional applications suitable for ocean, atmosphere, ice-sheet, and other climate modeling applications.
Date: March 12, 2013
Creator: Gunzburger, Max
Object Type: Text
System: The UNT Digital Library
California Hydrogen Infrastructure Project (open access)

California Hydrogen Infrastructure Project

Air Products and Chemicals, Inc. has completed a comprehensive, multiyear project to demonstrate a hydrogen infrastructure in California. The specific primary objective of the project was to demonstrate a model of a “real-world” retail hydrogen infrastructure and acquire sufficient data within the project to assess the feasibility of achieving the nation’s hydrogen infrastructure goals. The project helped to advance hydrogen station technology, including the vehicle-to-station fueling interface, through consumer experiences and feedback. By encompassing a variety of fuel cell vehicles, customer profiles and fueling experiences, this project was able to obtain a complete portrait of real market needs. The project also opened its stations to other qualified vehicle providers at the appropriate time to promote widespread use and gain even broader public understanding of a hydrogen infrastructure. The project engaged major energy companies to provide a fueling experience similar to traditional gasoline station sites to foster public acceptance of hydrogen. Work over the course of the project was focused in multiple areas. With respect to the equipment needed, technical design specifications (including both safety and operational considerations) were written, reviewed, and finalized. After finalizing individual equipment designs, complete station designs were started including process flow diagrams and systems safety reviews. …
Date: March 12, 2013
Creator: Heydorn, Edward C.
Object Type: Report
System: The UNT Digital Library
Integrated Detection of Pathogens and Host Biomarkers for Wounds (open access)

Integrated Detection of Pathogens and Host Biomarkers for Wounds

None
Date: March 12, 2013
Creator: Jaing, C
Object Type: Report
System: The UNT Digital Library
A Magnetic Diagnostic Code for 3D Fusion Equilibria (open access)

A Magnetic Diagnostic Code for 3D Fusion Equilibria

A synthetic magnetic diagnostics code for fusion equilibria is presented. This code calculates the response of various magnetic diagnostics to the equilibria produced by the VMEC and PIES codes. This allows for treatment of equilibria with both good nested flux surfaces and those with stochastic regions. DIAGNO v2.0 builds upon previous codes through the implementation of a virtual casing principle. The code is validated against a vacuum shot on the Large Helical Device (LHD) where the vertical field was ramped. As an exercise of the code, the diagnostic response for various equilibria are calculated on the LHD.
Date: March 12, 2013
Creator: Lazerson, Samuel A.; Sakakibara, S. & Suzuki, Y.
Object Type: Report
System: The UNT Digital Library
Elk Monitoring Report for Calendar Year 2012 (open access)

Elk Monitoring Report for Calendar Year 2012

Four complete surveys were conducted during 2012. The surveys were conducted on April 5, June 19, October 25, and December 18. During the first survey, conducted on April 5, the aerial survey crew detected 26 elk while the ground survey crew detected zero. For the June 19 survey, the aerial survey detected four elk not detected by the ground crew, while the ground crew detected 13 elk not detected by the aerial crew. A total of 17 elk were detected on June 19, 2012. On October 25, surveyors detected two herds of elk. Both the aerial and ground crews detected one herd of six, while only the ground crew detected the other herd of four. No elk were observed during the final survey, conducted on December 18.
Date: March 12, 2013
Creator: Lindsey, Cole T.; Nugent, John J.; Wilde, Justin W. & Tiller, B
Object Type: Report
System: The UNT Digital Library
Final Report: " Growth Rates of Freshly Nucleated Particles" (open access)

Final Report: " Growth Rates of Freshly Nucleated Particles"

This report lists of archival journal articles that were written with support from this grant. Research objectives from the original proposal are given, along with papers that were written to meet each of those objectives. The papers are all available in the archival literature.
Date: March 12, 2013
Creator: McMurry, Peter H. & Smith, James N.
Object Type: Report
System: The UNT Digital Library
Ultra-Efficient and Power Dense Electric Motors for U. S. Industry (open access)

Ultra-Efficient and Power Dense Electric Motors for U. S. Industry

The primary purpose of this project was to combine the ease-of-installation and ease-of-use attributes of industrial induction motors with the low-loss and small size and weight advantages of PM motors to create an ultra-efficient, high power density industrial motor that can be started across-the-line or operated from a standard, Volts/Hertz drive without the need for a rotor position feedback device. PM motor products that are currently available are largely variable speed motors that require a special adjustable speed drive with rotor position feedback. The reduced size and weight helps to offset the magnet cost in order make these motors commercially viable. The scope of this project covers horsepower ratings from 20 ? 500. Prototypes were built and tested at ratings ranging from 30 to 250 HP. Since fans, pumps and compressors make up a large portion of industrial motor applications, the motor characteristics are tailored to those applications. Also, since there is extensive use of adjustable frequency inverters in these applications, there is the opportunity to design for an optimal pole number and operate at other than 60 Hz frequency when inverters are utilized. Designs with four and eight pole configurations were prototyped as part of this work. Four pole …
Date: March 12, 2013
Creator: Melfi, Michael J.; Schiferl, Richard F. & Umans, Stephen D.
Object Type: Report
System: The UNT Digital Library
VEST: Abstract Vector Calculus Simplification in Mathematica (open access)

VEST: Abstract Vector Calculus Simplification in Mathematica

We present a new package, VEST (Vector Einstein Summation Tools), that performs abstract vector calculus computations in Mathematica. Through the use of index notation, VEST is able to reduce scalar and vector expressions of a very general type using a systematic canonicalization procedure. In addition, utilizing properties of the Levi-Civita symbol, the program can derive types of multi-term vector identities that are not recognized by canonicalization, subsequently applying these to simplify large expressions. In a companion paper [1], we employ VEST in the automation of the calculation of Lagrangians for the single particle guiding center system in plasma physics, a computation which illustrates its ability to handle very large expressions. VEST has been designed to be simple and intuitive to use, both for basic checking of work and more involved computations. __________________________________________________
Date: March 12, 2013
Creator: Squire, J.; Burby, J. & Qin, H.
Object Type: Report
System: The UNT Digital Library
Cayuga County Regional Digester - Vision Becomes Reality - Final Report (open access)

Cayuga County Regional Digester - Vision Becomes Reality - Final Report

With an average herd size of 113 mature cows, Cayuga County is home to 280 dairy farms and 31,500 dairy milking cows producing approximately 855 million gallons of milk per year. The Cayuga Dairy industry is a major contributor to the countys economy, employing nearly 1200 people, while generating $140,000,000 of revenue from sale of milk alone. At the same time, the Cayuga County dairy industry also produces 5.7 million gallons of manure daily: a) Nearly 34% of this manure is produced on smaller farms. b) Digesters are expensive pieces of equipment and require attention and care. c) The on-farm digester systems have fairly long payback (>10 years) even for larger CAFO farms (>1000 milking cows). In 2005, Cayuga County Soil and Water Conservation District (The District), a Public Agency under Cayuga County, decided to undertake a centralized community digester project. The primary goal of the project was to develop an economically sustainable model, under the auspices of The District to address manure management issues facing the smaller dairies, improve the water quality and improve the quality of life for Cayuga County residents. It is believed that the District has accomplished this goal by completing construction of Cayuga County Regional …
Date: March 12, 2013
Creator: Zadeh, Kamyar V.
Object Type: Report
System: The UNT Digital Library