Search Results

open access

INTERNATIONAL ENGLISH MANUAL

Description: This document presents a set of guidelines for authors who wish to express themselves more clearly to foreign readers, or readers whose first language is not American English. Topics include idioms, technical terms, jargon, word meaning, acronyms, and international conventions of measurement. The guidelines will help writers of technical documents present their ideas more effectively to audiences that may include individuals whose first language is not American English, including audiences with… more
Date: February 22, 2002
Creator: AMADOR, MABLE & KELLER, YVONNE KELLER
Partner: UNT Libraries Government Documents Department
open access

Acoustic Separation Technology

Description: Today's restrictive environmental regulations encourage paper mills to close their water systems. Closed water systems increase the level of contaminants significantly. Accumulations of solid suspensions are detrimental to both the papermaking process and the final products. To remove these solids, technologies such as flotation using dissolved air (DAF), centrifuging, and screening have been developed. Dissolved Air Flotation systems are commonly used to clarify whitewater. These passive syste… more
Date: February 22, 2002
Creator: Ahrens, Fred & Patterson, Tim
Partner: UNT Libraries Government Documents Department
open access

Thermal Diffusivity and Conductivity Measurements in Diamond Anvil Cells

Description: We have undertaken a study of the feasibility of an innovative method for the determination of thermal properties of materials at extreme conditions. Our approach is essentiality an extension of the flash method to the geometry of the diamond-anvil cell and our ultimate goal is to greatly enlarge the pressure and temperature range over which thermal properties can be investigated. More specifically, we have performed test experiments to establish a technique for probing thermal diffusivity on s… more
Date: February 22, 2007
Creator: Antonangeli, D & Farber, D L
Partner: UNT Libraries Government Documents Department
open access

High resolution positron Q-value measurements and nuclear structure studies far from the stability line. Progress report, July 1, 1979-June 30, 1980. [Dept. of Physics and Astronomy, Univ. of South Carolina, Columbia]

Description: This document represents a progress report and renewal proposal for the contract DEAS 09 79 ER10434 between the USDOE and USC. During the time from 1 July 1979 to 1 March 1980, the large 35% intrinsic Ge detector was purchased and tested, and the new hyperpure Ge detector for positron end-point-energy measurements was designed and fabricated by ORTEC. It was delivered just prior to January 1, 1980. Measurements using this special equipment began in January 1980. During this period, a new effort… more
Date: February 22, 1980
Creator: Avignone, F. T. III
Partner: UNT Libraries Government Documents Department
open access

Small-scale hydroelectric power in Watauga County, North Carolina

Description: We have completed both the installation of the demonstration project and the assessment of the stream flows in Watauga County, North Carolina. The 17 kW, high head (178'), project on Laurel Creek in Watauga County has produced about 60,000 kWh over its first nine months of operation despite some electrical and other problems. It is currently producing 16 to 17 kW on a steady basis and is functioning as a popular site for visits by people who plan to install their own similar plants in area… more
Date: February 22, 1983
Creator: Ayers, H G
Partner: UNT Libraries Government Documents Department
open access

Thermodynamic analysis of Thermophotovoltaic Efficiency and Power Density Tradeoffs

Description: This report presents an assessment of the efficiency and power density limitations of thermophotovoltaic (TPV) energy conversion systems for both ideal (radiative-limited) and practical (defect-limited) systems. Thermodynamics is integrated into the unique process physics of TPV conversion, and used to define the intrinsic tradeoff between power density and efficiency. The results of the analysis reveal that the selection of diode bandgap sets a limit on achievable efficiency well below the tra… more
Date: February 22, 2000
Creator: Baldasara, P. F.; Reynolds, J. E.; Charache, G. W.; DePoy, D. M.; Ballinger, C. T.; Donovan, T. et al.
Partner: UNT Libraries Government Documents Department
open access

''Self-Smoothing of Laser Light in Plasmas''.

Description: The modification of the optical characteristics of a laser beam by a plasma is a key issue in laser-plasma coupling. it is critical to understand how this takes place, if we are ever to understand the interaction processes in the plasma corona as well as the coupling at super-high intensities--as when laser pulses approach Petawatt intensities. Interpreting and understanding parametric instabilities in laser-produced plasmas has been a problem of increasing complexity. Improvements in diagnosti… more
Date: February 22, 2000
Creator: Baldis, H. A.; Rozmus, W.; Labaune, C.; Cohen, B. & Bergen, R.
Partner: UNT Libraries Government Documents Department
open access

Computational Models of Beam Emittance Growth

Description: Two fast running computer codes have been developed to calculate and verify the predictions of phenomenological models of beam emittance growth and radial oscillation damping. This report describes the codes - a point model, EMY, and a particle simulation, DESTIN. Comparison of model predictions and simulation results is made for the cases of a beam launched near self-pinch equilibrium and for a cold beam launched in near ballistic condition.
Date: February 22, 1980
Creator: Barletta, W. A.
Partner: UNT Libraries Government Documents Department
open access

Model building, control and optimization of large scale systems

Description: This report covers the research progress made during the calendar year 1992. The new results obtained during this period are described, keyed to the references listed on the last two pages of this report.
Date: February 22, 1993
Creator: Basar, T.
Partner: UNT Libraries Government Documents Department
open access

PVMaT Cost Reductions in the EFG High-Volume PV Manufacturing Line: Annual Report, August 1998-December 2000

Description: The PVMaT 5A2 program at ASE Americas is a three-year program that addresses topics in the development of manufacturing systems, low-cost processing approaches, and flexible manufacturing methods. The three-year objectives are as follows: (1) implementation of computer-aided manufacturing systems, including Statistical Process Control, to aid in electrical and mechanical yield improvements of 10%, (2) development and implementation of ISO 9000 and ISO 14000, (3) deployment of wafer production f… more
Date: February 22, 2001
Creator: Bathey, B.; Brown, B.; Cao, J.; Ebers, S.; Gonsiorawski, R.; Heath, B. et al.
Partner: UNT Libraries Government Documents Department
open access

Identifying the Proteins that Mediate the Ionizing Radiation Resistance of Deinococcus Radiodurans R1

Description: The primary objectives of this proposal was to define the subset of proteins required for the ionizing radiation (IR) resistance of Deinococcus radiodurans R1, characterize the activities of those proteins, and apply what was learned to problems of interest to the Department of Energy.
Date: February 22, 2010
Creator: Battista, John R
Partner: UNT Libraries Government Documents Department
open access

Causes of Indoor Air Quality Problems in Schools: Summary of Scientific Research

Description: In the modern urban setting, most individuals spend about 80% of their time indoors and are therefore exposed to the indoor environment to a much greater extent than to the outdoors (Lebowitz 1992). Concomitant with this increased habitation in urban buildings, there have been numerous reports of adverse health effects related to indoor air quality (IAQ) (sick buildings). Most of these buildings were built in the last two decades and were constructed to be energy-efficient. The quality of air i… more
Date: February 22, 2001
Creator: Bayer, C.W.
Partner: UNT Libraries Government Documents Department
open access

Project W320 52-inch diameter equipment container load test: Test report

Description: This test report summarizes testing activities and documents the results of the load tests performed on-site and off-site to structural qualify the 52-inch equipment containers designed and fabricated under Project W-320.
Date: February 22, 1995
Creator: Bellomy, J.R.
Partner: UNT Libraries Government Documents Department
open access

Persistent Monitoring Platforms Final Report

Description: This project was inspired and motivated by the need to provide better platforms for persistent surveillance. In the years since the inception of this work, the need for persistence of surveillance platforms has become even more widely appreciated, both within the defense community and the intelligence community. One of the most demanding technical requirements for such a platform involves the power plant and energy storage system, and this project concentrated almost exclusively on the technolo… more
Date: February 22, 2007
Creator: Bennett, C L
Partner: UNT Libraries Government Documents Department
open access

Injection Molding of Plastics from Agricultural Materials

Description: The objective of this research was to conduct a systematic study to relate injection molding parameters to properties of blends of starch and synthetic polymer. From this study, we wished to develop a thorough understanding of the injection molding process and gain significant insight into designing molds and aiding in developing products cheaply and efficiently.
Date: February 22, 2001
Creator: Bhattacharya, M. & Ruan, R.
Partner: UNT Libraries Government Documents Department
open access

Evaluation, design, development and delivery of a 1200 kV prototype termination. First technical progress report, September 28, 1978-January 31, 1979

Description: The conceptual design and material study, Task 1 of this project is nearing completion. The primary objective of problem definition, in the form of a preliminary design specification, is complete. Several innovative concepts are being explored and compared. By the end of Task 1, the many alternative concepts will be narrowed considerably so that model studies of the most promising candidates may commence.
Date: February 22, 1979
Creator: Billings, J. S.; Neri, Z.; Meyer, J. R.; Berkebile, L. E. & English, W. A.
Partner: UNT Libraries Government Documents Department
open access

PILOT TESTING OF MERCURY OXIDATION CATALYSTS FOR UPSTREAM OF WET FGD SYSTEMS

Description: The objective of this project is to demonstrate at pilot scale the use of solid honeycomb catalysts to promote the oxidation of elemental mercury in the flue gas from coal combustion. The project is being funded by the U.S. DOE National Energy Technology Laboratory under Cooperative Agreement DE-FC26-01NT41185. EPRI, Great River Energy (GRE), and City Public Service (CPS) of San Antonio are project co-funders. URS Group is the prime contractor. The mercury catalytic oxidation process under deve… more
Date: February 22, 2002
Creator: Blythe, Gary M.
Partner: UNT Libraries Government Documents Department
open access

FY05 LDRD Final Report Molecular Engineering of Electrodialysis Membranes 03-ERD-060

Description: Using a combination of modeling and experimental work we have developed a new method for purifying water that uses less energy than conventional methods and that can be made selective for removing targeted contaminants. The method uses nanoporous membranes that are permselective for anion or cation transfer. Ion selectivity results from double layer overlap inside the pores such that they dominantly contain ions opposite in charge to the surface charge of the membrane. Membrane charge can be ad… more
Date: February 22, 2006
Creator: Bourcier, W.; O'Brien, K.; Sawvel, A.; Johnson, M.; Bettencourt, K.; Letant, S. et al.
Partner: UNT Libraries Government Documents Department
open access

Wind tunnel test of 1/30 scale heliostat field array model. Test report

Description: From 9 January through 20 January 1978, Honeywell conducted a wind tunnel test on a 1/30 scale partial heliostat field. The heliostats were per Honeywell's design developed under the 10 megawatt central receiver pilot electrical power plant subsystem research experiment contract. Likewise, the scaled section of the field geometry duplicated the proposed circular layout. Testing was conducted at the Georgia Institute of Technology's 9 foot subsonic tunnel. The objective of the test was… more
Date: February 22, 1978
Creator: Brown, G. L.
Partner: UNT Libraries Government Documents Department
open access

PAIRWISE BLENDING OF HIGH LEVEL WASTE (HLW)

Description: The primary objective of this study is to demonstrate a mission scenario that uses pairwise and incidental blending of high level waste (HLW) to reduce the total mass of HLW glass. Secondary objectives include understanding how recent refinements to the tank waste inventory and solubility assumptions affect the mass of HLW glass and how logistical constraints may affect the efficacy of HLW blending.
Date: February 22, 2006
Creator: CERTA, P.J.
Partner: UNT Libraries Government Documents Department
open access

Tritium Systems Test Facility

Description: This TSTF proposal has two principal objectives. The first objective is to provide by mid-FY 1981 a demonstration of the fuel cycle and tritium containment systems which could be used in a Tokamak Experimental Power Reactor for operation in the mid-1980's. The second objective is to provide a capability for further optimization of tritium fuel cycle and environmental control systems beyond that which is required for the EPR. The scale and flow rates in TSTF are close to those which have been pr… more
Date: February 22, 1978
Creator: Cafasso, F. A.; Maroni, V. A.; Smith, W. H.; Wilkes, W. R. & Wittenberg, L. J.
Partner: UNT Libraries Government Documents Department
open access

Radial Temperature Profile of Sodium Pool Boiling Heater Assembly

Description: The radial temperature around a sodium reactor heater assembly submerged in water is calculated using a model of the heater cross section found by conformal mapping. Thermocouple readings were also analyzed. When the heat flux is 5 x 10/sup 5/ Btu/hr-ft/sup 2/, a radial temperature drop of about 680 deg C across the center of the thermocouple well is calculated and found to be within 6% of the experimental value. Since most of this drop is across the 0.001-in. helium gap between the heater and … more
Date: February 22, 1960
Creator: Cappel, H. H.
Partner: UNT Libraries Government Documents Department
open access

Tests on conducted electrical noise on a storage ring dc-dc converter cabinet

Description: Electrical noise is produced by switching transients in the power supply converters which excite resonances formed by stray capacitance and cable inductance. This noise is present not only on the load cables, but also on ground cables of the magnet and of the converter cabinet. Since there will eventually be a large number of cabinets running at one time, tests were carried out to characterize the noise and to investigate possible techniques for reducing the levels. The tests were carried out o… more
Date: February 22, 1994
Creator: Carwardine, J. J.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen