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A 3-D Model of Signaling and Transport Pathways in Epithelial Cells
A 3-dimensional computer model was developed to simulate the spatial and chemical evolution of calcium ions inside an array of human epithelial kidney cells. This is a prototype model, intended to develop a methodology to incorporate much more complex interactions of metabolic and other processes within many types of cells and lead to increased ability to predict cellular responses to disease as well as to chemical and biological warfare situations. Preliminary tests of the model are described.
Date:
April 1, 2005
Creator:
Quong, Andrew A. & Westbrook, Charles K.
Object Type:
Report
System:
The UNT Digital Library
15th Street News (Midwest City, Okla.), Vol. 34, No. 21, Ed. 1 Friday, April 1, 2005
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
April 1, 2005
Creator:
Delaney, Darcy
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
2004/2005 Federal Tax Deduction: Hybrid Electric Vehicles
A 2-page fact sheet summarizing federal and state hybrid electric vehicle tax incentives.
Date:
April 1, 2005
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
2004 Annual Health Physics Report for the HEU Transparency Program
During the 2004 calendar year, LLNL provided health physics support for the Highly Enriched Uranium Transparency Implementation Program (HEU-TIP) in external and internal radiation protection and technical expertise into matters related to BDMS radioactive sources and Russian radiation safety regulatory compliance. For the calendar year 2004, there were 200 person-trips that required dose monitoring of the U.S. monitors. Of the 200 person-trips, 183 person-trips were SMVs and 17 person-trips were Transparency Monitoring Office (TMO) trips. Eight person-trips from the SMV trips were continuation trips of TMO monitors to facilities other than UEIP. The LLNL Safety Laboratories' Division provided the dosimetry services for the HEU-TIP monitors.
Date:
April 1, 2005
Creator:
Radev, R
Object Type:
Report
System:
The UNT Digital Library
2005 DOE Hydrogen Program Review PresentationCOST AND PERFORMANCE ENHANCEMENTS FOR A PEM FUEL CELL TURBOCOMPRESSOR
The objectives of the program during the past year was to complete Technical Objectives 2 and 3 and initiate Technical Objective 4 are described. To assist the Department of Energy in the development of a low cost, reliable and high performance air compressor/expander. Technical Objective 1: Perform a turbocompressor systems PEM fuel cell trade study to determine the enhanced turbocompressor approach. Technical Objective 2: Using the results from technical objective 1, an enhanced turbocompressor will be fabricated. The design may be modified to match the flow requirements of a selected fuel cell system developer. Technical Objective 3: Design a cost and performance enhanced compact motor and motor controller. Technical Objective 4: Turbocompressor/motor controller development.
Date:
April 1, 2005
Creator:
Gee, Mark K.
Object Type:
Article
System:
The UNT Digital Library
2005 Solar Decathlon
This brochure describes the Solar Decathlon, an international competition among college and university teams to design, build, and operate the most attractive, energy-efficient, solar-powered house.
Date:
April 1, 2005
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
Abilene Philharmonic Playbill: April 2-May 7, 2005
Program for an Abilene Philharmonic concert that ran from April 2nd to May 7th during the 55th season. It includes information about the pieces performed, artists and musicians, and advertising from local companies.
Date:
April 2005
Creator:
Abilene Philharmonic
Object Type:
Pamphlet
System:
The Portal to Texas History
About NICADD extruded scintillating strips
The results of control measurements of extruded scintillating strip responses to a radioactive source Sr-90 are provided, and details of strip choice, preparation, and method of measurement are included. About four hundred one meter long extruded scintillating strips were measured at four different points. These results were essential for prototyping a tail catcher and muon tracker for a future international electron positron linear collider detector.
Date:
April 1, 2005
Creator:
Dyshkant, A.; Beznosko, D.; Blazey, G.; Chakraborty, D.; Francis, K.; Kubik, D. et al.
Object Type:
Article
System:
The UNT Digital Library
Abundance of Green Tree Frogs and Insects in Artificial Canopy Gaps in a Bottomland Hardwood Forest.
ABSTRACT - We found more green tree frogs ( Hyla cinerea) n canopv gaps than in closed canopy forest. Of the 331 green tree frogs observed, 88% were in canopv gaps. Likewise, higher numbers and biomasses of insects were captured in the open gap habitat Flies were the most commonlv collected insect group accounting for 54% of the total capture. These data suggest that one reason green tree frogs were more abundant in canopy gaps was the increased availability of prey and that small canopy gaps provide early successional habitats that are beneficial to green tree frog populations.
Date:
April 1, 2005
Creator:
Horn, Scott; Hanula, James, L.; Ulyshen, Michael D. & Kilgo, John, C.
Object Type:
Article
System:
The UNT Digital Library
ADVANCED GASIFICATION BY-PRODUCT UTILIZATION
The results of laboratory investigations and supporting technical assessments conducted under DOE Subcontract No. DE-FG26-03NT41795 are reported for the period September 1, 2003 to August 31, 2004. This contract is with the University of Kentucky Research Foundation, which supports work with the University of Kentucky Center for Applied Energy Research and The Pennsylvania State University Energy Institute. The worked described was part of a project entitled ''Advanced Gasification By-Product Utilization''. This work involves the development of technologies for the separation and characterization of coal gasification slags from operating gasification units, activation of these materials to increase mercury and nitrogen oxide capture efficiency, assessment of these materials as sorbents for mercury and nitrogen oxides, and characterization of these materials for use as polymer fillers.
Date:
April 1, 2005
Creator:
Andrews, Rodney; Rubel, Aurora; Groppo, Jack; Geertsema, Ari; Maroto-Valer, M. Mercedes; Lu, Zhe et al.
Object Type:
Report
System:
The UNT Digital Library
Advanced Technologies For Stripper Gas Well Enhancement
Stripper gas and oil well operators frequently face a dilemma regarding maximizing production from low-productivity wells. With thousands of stripper wells in the United States covering extensive acreage, it is difficult to identify easily and efficiently marginal or underperforming wells. In addition, the magnitude of reviewing vast amounts of data places a strain on an operator's work force and financial resources. Schlumberger DCS, in cooperation with the National Energy Technology Laboratory (NETL) and the U.S. Department of Energy (DOE), has created software and developed in-house analysis methods to identify remediation potential in stripper wells relatively easily. This software is referred to as Stripper Well Analysis Remediation Methodology (SWARM). SWARM was beta-tested with data pertaining to two gas fields located in northwestern Pennsylvania and had notable results. Great Lakes Energy Partners, LLC (Great Lakes) and Belden & Blake Corporation (B&B) both operate wells in the first field studied. They provided data for 729 wells, and we estimated that 41 wells were candidates for remediation. However, for reasons unbeknownst to Schlumberger these wells were not budgeted for rework by the operators. The second field (Cooperstown) is located in Crawford, Venango, and Warren counties, Pa and has more than 2,200 wells operated by …
Date:
April 1, 2005
Creator:
MacDonald, Ronald J.; Boyer, Charles M.; Jr, Joseph H. Frantz & Zyglowicz, Paul A.
Object Type:
Report
System:
The UNT Digital Library
Advanced Test Reactor Testing Experience: Past, Present and Future
The Advanced Test Reactor (ATR), at the Idaho National Laboratory (INL), is one of the world’s premier test reactors for providing the capability for studying the effects of intense neutron and gamma radiation on reactor materials and fuels. The physical configuration of the ATR, a 4-leaf clover shape, allows the reactor to be operated at different power levels in the corner “lobes” to allow for different testing conditions for multiple simultaneous experiments. The combination of high flux (maximum thermal neutron fluxes of 1E15 neutrons per square centimeter per second and maximum fast [E>1.0 MeV] neutron fluxes of 5E14 neutrons per square centimeter per second) and large test volumes (up to 48" long and 5.0" diameter) provide unique testing opportunities. The current experiments in the ATR are for a variety of test sponsors -- US government, foreign governments, private researchers, and commercial companies needing neutron irradiation services. There are three basic types of test configurations in the ATR. The simplest configuration is the sealed static capsule, wherein the target material is placed in a capsule, or plate form, and the capsule is in direct contact with the primary coolant. The next level of complexity of an experiment is an instrumented lead …
Date:
April 1, 2005
Creator:
Marshall, Frances M.
Object Type:
Article
System:
The UNT Digital Library
The Advocate, Volume 10, Issue 2, April-June 2005
Quarterly update providing information on environmental regulations for small businesses and local governments in Texas.
Date:
April 2005
Creator:
Texas Commission on Environmental Quality
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Aeronautics Star, Volume 6, Number 2, April/May 2005
Bimonthly newsletter published for employees of Lockheed Martin Aeronautics Co. containing work-related information, updates about employees, and other news.
Date:
April 2005
Creator:
Lockheed Martin Astronautics Corporation
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
AFEII Analog Front End Board Design Specifications
This document describes the design of the 2nd iteration of the Analog Front End Board (AFEII), which has the function of receiving charge signals from the Central Fiber Tracker (CFT) and providing digital hit pattern and charge amplitude information from those charge signals. This second iteration is intended to address limitations of the current AFE (referred to as AFEI in this document). These limitations become increasingly deleterious to the performance of the Central Fiber Tracker as instantaneous luminosity increases. The limitations are inherent in the design of the key front end chips on the AFEI board (the SVXIIe and the SIFT) and the architecture of the board itself. The key limitations of the AFEI are: (1) SVX saturation; (2) Discriminator to analog readout cross talk; (3) Tick to tick pedestal variation; and (4) Channel to channel pedestal variation. The new version of the AFE board, AFEII, addresses these limitations by use of a new chip, the TriP-t and by architectural changes, while retaining the well understood and desirable features of the AFEI board.
Date:
April 1, 2005
Creator:
Rubinov, Paul
Object Type:
Report
System:
The UNT Digital Library
Affordable High-Performance Homes: The 2002 NREL Denver Habitat for Humanity House, A Cold-Climate Case Study
A trend towards ''green'' building with a focus on energy efficiency is sweeping the United States homebuilding industry. An integrated systems-design approach leads to homes that are more efficient, more comfortable, more affordable, and more durable than homes built with standard practices. Habitat for Humanity affiliates throughout the country are taking the lead on this approach to home building for affordable housing. This approach supports Habitat's goals of supplying quality housing and reducing the energy cost burden on families in Habitat homes--goals that are especially important in these days of increasing energy costs.
Date:
April 1, 2005
Creator:
Norton, P.; Stafford, B.; Carpenter, B.; Hancock, C. E.; Barker, G.; Reeves, P. et al.
Object Type:
Report
System:
The UNT Digital Library
[Agenda for the WASP Mini Reunion]
Agenda for the WASP Mini Reunion held April 1-4, 2005 in Washington, D.C.
Date:
April 1, 2005
Creator:
Women Airforce Service Pilots (U.S.)
Object Type:
Text
System:
The Portal to Texas History
Altus Times (Altus, Okla.), Vol. 107, No. 1, Ed. 1 Friday, April 1, 2005
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
April 1, 2005
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
An aluminum resist substrate for microfabrication by LIGA.
Resist substrates used in the LIGA process must provide high initial bond strength between the substrate and resist, little degradation of the bond strength during x-ray exposure, acceptable undercut rates during development, and a surface enabling good electrodeposition of metals. Additionally, they should produce little fluorescence radiation and give small secondary doses in bright regions of the resist at the substrate interface. To develop a new substrate satisfying all these requirements, we have investigated secondary resist doses due to electrons and fluorescence, resist adhesion before exposure, loss of fine features during extended development, and the nucleation and adhesion of electrodeposits for various substrate materials. The result of these studies is a new anodized aluminum substrate and accompanying methods for resist bonding and electrodeposition. We demonstrate successful use of this substrate through all process steps and establish its capabilities via the fabrication of isolated resist features down to 6 {micro}m, feature aspect ratios up to 280 and electroformed nickel structures at heights of 190 to 1400 {micro}m. The minimum mask absorber thickness required for this new substrate ranges from 7 to 15 {micro}m depending on the resist thickness.
Date:
April 1, 2005
Creator:
Kelly, James J.; Boehme, Dale R.; Hauck, Cheryl A. (Lawrence Berkeley National Laboratory, Berkeley, CA); Yang, Chu-Yeu Peter; Hunter, Luke L.; Griffiths, Stewart K. et al.
Object Type:
Report
System:
The UNT Digital Library
Analysis Methods and Desired Outcomes of System Interface Heat Transfer Fluid Requirements and Characteristics Analyses
The interface between the Next Generation Nuclear Plant (NGNP) and the hydrogen-generating process plant will contain an intermediate loop that will transport heat from the NGNP to the process plant. Seven possible configurations for the NGNP primary coolant system and the intermediate heat transport loop were identified. Both helium and liquid salts are being considered as the working fluid in the intermediate heat transport loop. A method was developed to perform thermal-hydraulic evaluations of the different configurations and coolants. The evaluations will determine which configurations and coolants are the most promising from a thermal-hydraulic point of view and which, if any, do not appear to be feasible at the current time. Results of the evaluations will be presented in a subsequent report.
Date:
April 1, 2005
Creator:
Davis, Cliff B.
Object Type:
Report
System:
The UNT Digital Library
Analysis of the Energy Performance of the Chesapeake Bay Foundation's Philip Merrill Environmental Center
The Chesapeake Bay Foundation designed their new headquarters building to minimize its environmental impact on the already highly polluted Chesapeake Bay by incorporating numerous high-performance energy saving features into the building design. CBF then contacted NREL to perform a nonbiased energy evaluation of the building. Because their building attracted much attention in the sustainable design community, an unbiased evaluation was necessary to help designers replicate successes and identify and correct problem areas. This report focuses on NREL's monitoring and analysis of the overall energy performance of the building.
Date:
April 1, 2005
Creator:
Griffith, B.; M., Deru; Torcellini, P. & Ellis, P.
Object Type:
Report
System:
The UNT Digital Library
Analysis of the Hydrogen Infrastructure Needed to Enable Commercial Introduction of Hydrogen-Fueled Vehicles
None
Date:
April 1, 2005
Creator:
Melendez, M.
Object Type:
Article
System:
The UNT Digital Library
Application of a Java-based, univel geometry, neutral particle Monte Carlo code to the searchlight problem
A univel geometry, neutral particle Monte Carlo transport code, written entirely in the Java programming language, is under development for medical radiotherapy applications. The code uses ENDF-VI based continuous energy cross section data in a flexible XML format. Full neutron-photon coupling, including detailed photon production and photonuclear reactions, is included. Charged particle equilibrium is assumed within the patient model so that detailed transport of electrons produced by photon interactions may be neglected. External beam and internal distributed source descriptions for mixed neutron-photon sources are allowed. Flux and dose tallies are performed on a univel basis. A four-tap, shift-register-sequence random number generator is used. Initial verification and validation testing of the basic neutron transport routines is underway. The searchlight problem was chosen as a suitable first application because of the simplicity of the physical model. Results show excellent agreement with analytic solutions. Computation times for similar numbers of histories are comparable to other neutron MC codes written in C and FORTRAN.
Date:
April 1, 2005
Creator:
Wemple, Charles A. & Cogliati, Joshua J.
Object Type:
Article
System:
The UNT Digital Library
[Arlington protester shouting into microphone]
A photo of Procoro Villa, student leader and member of the young group of the League of United Latin American Citizens (LULAC), speaking into a microphone to the crowd at a protest. He is wearing a white shirt with blue lettering. Behind him are other people in the crowd, also wearing white, and several large flags and a few balloons. Hundreds of high school students from different schools in Arlington (Texas) participated in a protest march to demand the approval of immigration reform which would include legalization of millions of undocumented immigrants.
Date:
April 1, 2005
Creator:
Castillo, José L.
Object Type:
Photograph
System:
The UNT Digital Library