UNT Libraries Government Documents Department - 297 Matching Results

Search Results

open access

2D/3D quench simulation using ANSYS for epoxy impregnated Nb3Sn high field magnets

Description: A quench program using ANSYS is developed for the high field collider magnet for three-dimensional analysis. Its computational procedure is explained. The quench program is applied to a one meter Nb{sub 3}Sn high field model magnet, which is epoxy impregnated. The quench simulation program is used to estimate the temperature and mechanical stress inside the coil as well as over the whole magnet. It is concluded that for the one meter magnet with the presented cross section and configuration, th… more
Date: September 19, 2002
Creator: al., Ryuji Yamada et
open access

Abortion: Legislative Response

Description: The primary purpose of this issue brief is to focus on the current legislative action in the 107th Congress with respect to abortion; however, understanding that legislation requires a review of the U. S. Supreme Court’s leading decisions concerning a woman’s right to choose whether to terminate her pregnancy. For a detailed discussion of the case law, see CRS Report 95-724, Abortion Law Development: A Brief Overview.
Date: July 19, 2002
Creator: Lewis, Karen J.; Shimabukuro, Jon O. & Ely, Dana
open access

Addendum to the Composite Analysis for the E-Area Vaults and Saltstone Disposal Facilities

Description: Revision 1 of the Composite Analysis (CA) Addendum has been prepared to respond to the U.S. Department of Energy (DOE) Low-Level Waste Disposal Facilities Federal Review Group review of the CA. This addendum to the composite analysis responds to the conditions of approval. The composite analysis was performed on the two active SRS low-level radioactive waste disposal facilities. The facilities are the Z-Area Saltstone Disposal Facility and the E-Area Vaults Disposal Facility. The analysis calcu… more
Date: December 19, 2002
Creator: Cook, J. R.
open access

Adding the infrastructure class hierarchy to the EXHORT framework for object-oriented deployment simulations.

Description: One of the objectives of the U.S. Department of Defense is to standardize all classes used in object-oriented deployment simulations by developing a standard class attribute representation and behavior for all deployment simulations that rely on an underlying class representation. The EXtensive Hierarchy and Object Representation for Transportation Simulations (EXHORT) is a class framework composed of two hierarchies that together constitute a standard and consistent class attribute representat… more
Date: July 19, 2002
Creator: Burke, J. F.; Van Groningen, C.; Bragen, M. & Macal, C. M.
open access

An adjustable thickness Li/Be target for fragmentation of 3-kW heavy ion beams.

Description: As a first step towards developing liquid lithium target technology for a future high-power nuclear physics fragmentation facility, an adjustable thickness Li/Be hybrid target is being constructed for use at the NSCL. This target will use beryllium windows with flowing lithium. The lithium serves as a part of the target as well as the coolant. Up to 1 kW of beam power is dissipated in the target and is carried away by the recirculating liquid lithium loop. It is designed for high power beams in… more
Date: July 19, 2002
Creator: Nolen, J. A.; Reed, C. B.; Hassanein, A.; Novick, V. J.; Plotkin, P.; Specht, J. R. et al.
open access

Advanced Test Reactor (ATR) Facility 10CFR830 Safety Basis Related to Facility Experiments

Description: The Idaho National Engineering and Environmental Laboratory (INEEL) Advanced Test Reactor (ATR), a DOE Category A reactor, was designed to provide an irradiation test environment for conducting a variety of experiments. The ATR Safety Analysis Report, determined by DOE to meet the requirements of 10 CFR 830, Subpart B, provides versatility in types of experiments that may be conducted. This paper addresses two general types of experiments in the ATR facility and how safety analyses for experime… more
Date: June 19, 2002
Creator: Tomberlin, T.A.
open access

Africa: U.S. Foreign Assistance Issues

Description: This report discusses the issue of U.S. economic assistance to sub-Saharan Africa, highlighting the importance of continued assistance in light of U.S. national security and also various U.S.-led efforts to promote reform amongst African citizens themselves. U.S. assistance finds its way to Africa through a variety of channels, including the USAID-administered DA program, food aid programs, and indirect aid provided through international financial institutions and the United Nations.
Date: February 19, 2002
Creator: Copson, Raymond W.
open access

Air Quality and Electricity: Initiatives to Increase Pollution Controls

Description: This report discusses air quality initiatives (such as the Ozone Transport Rule) that primarily focus on reducing and enforcing emissions from coal-fired electric generating utilities in the Midwest and South. The report also addresses various legislative activity that focuses on multi-pollutant strategies as an alternative to these piecemeal initiatives.
Date: March 19, 2002
Creator: Parker, Larry & Blodgett, John E.
open access

ALE3D Model Predictions and Materials Characterization for the Cookoff Response of PBXN-109

Description: ALE3D simulations are presented for the thermal explosion of PBXN-109 (RDX, AI, HTPB, DOA) in support of an effort by the U. S. Navy and Department of Energy (DOE) to validate computational models. The U.S. Navy is performing benchmark tests for the slow cookoff of PBXN-109 in a sealed tube. Candidate models are being tested using the ALE3D code, which can simulate the coupled thermal, mechanical, and chemical behavior during heating, ignition, and explosion. The strength behavior of the solid … more
Date: March 19, 2002
Creator: McClelland, M. A.; Maienschein, J. L.; Nichols, A. L.; Wardell, J. F.; Atwood, A. I. & Curran, P. O.
open access

The Alternative Minimum Tax for Individuals

Description: This report provides a brief overview of the alternative minimum tax (AMT) for individuals, discusses the issues associated with the current system, and describes current legislation to amend the AMT. The report will be updated as legislative action warrants.
Date: April 19, 2002
Creator: Esenwein, Gregg A.
open access

Analysis of Ash Adhesion Behavior at High Temperature Condition by Using Computer controlled FE-SEM with Heat Treatment Unit

Description: The purpose of this paper is to analyze the increasing mechanism of cohesive and adhesive force of ash powders from a coal combustion system at high-temperature conditions, a new observation system, which was composed of computer controlled FE-SEM and chamber unit for the heat treatment, was developed. By using this system, the liquid phase formation on the surface of pressurized fluidized bed coal combustion ash samples was observed after heat treatment at 1123 K, which temperature was corresp… more
Date: September 19, 2002
Creator: Hamiya, H.; Yamada, H.; Tukada, M. & Naito, M.
open access

Analysis of Pulse-jet Cleaning of Dust Cake from Ceramic Filter Element

Description: In this study, behaviors of released dust and pressure inside and outside the filter element were observed very precisely. Based on the observation, a simple model correlating between momentum acting on released dust, pressure and, shear and tensile stresses has been proposed. Then its validity was discussed by comparing calculated and experimental results.
Date: September 19, 2002
Creator: Hata, M.; Kanaoka, C.; Furuuchi, M. & Inagaki, T.
open access

ANL/CRIEPI collaborative program for evaluation of irradiated EBR-II stainless steels.

Description: The objective of this collaboration between Argonne National Laboratory (ANL) and the Central Research Institute of Electric Power Industry (CRIEPI) is to evaluate the effects of long-term, low-dose neutron exposure on the mechanical properties, dimensional stability, and associated microstructural changes of reactor structural materials. ANL believes that material data obtained from components irradiated in EBR-II provide valuable information that is useful for LWR plant life extension. CRIEPI… more
Date: August 19, 2002
Creator: Allen, T.; Cole, J.; Tsai, H.; Jensen, R.; Bunde, K.; Ohta, J. et al.
open access

Applicability of International and DOE Target Values to ALD Destructive Measurement Applications

Description: International Target values and target value applicability are a function of the nuclear material processing campaign or application for which the accountability measurement method is being applied. Safeguarding significant quantities of nuclear-grade materials requires that accountability measurements be as accurate, precise, and representative as practically possible. In general, the ITV provides a benchmark for determining generic acceptability of the performance of the various accountabilit… more
Date: December 19, 2002
Creator: Holland, M.K.
open access

Application of Monte Carlo Methods in Molecular Targeted Radionuclide Therapy

Description: Targeted radionuclide therapy promises to expand the role of radiation beyond the treatment of localized tumors. This novel form of therapy targets metastatic cancers by combining radioactive isotopes with tumor-seeking molecules such as monoclonal antibodies and custom-designed synthetic agents. Ultimately, like conventional radiotherapy, the effectiveness of targeted radionuclide therapy is limited by the maximum dose that can be given to a critical, normal tissue, such as bone marrow, kidney… more
Date: February 19, 2002
Creator: Hartmann Siantar, C; Descalle, M-A; DeNardo, G L & Nigg, D W
open access

Armenia, Azerbaijan, and Georgia: Political Developments and Implications for U.S. Interests

Description: The United States recognized the independence of all the former Soviet republics by the end of 1991, including the South Caucasus states of Armenia, Azerbaijan, and Georgia. The United States has fostered these states' ties with the West in part to end the dependence of these states on Russia for trade, security, and other relations. The FREEDOM Support Act of 1992 provides authorization for assistance to the Eurasian states for humanitarian needs, democratization, and other purposes. In the af… more
Date: March 19, 2002
Creator: Nichol, Jim & Kim, Julie
open access

Asian Pacific Americans in the United States Congress

Description: This report provides information on the 33 Asian Pacific Americans who have served in the United States Congress from 1903 to the present, including 13 Resident Commissioners from the Philippine Islands. These Resident Commissioners served from 1907-1946 while the Philippines were a U.S. territory and commonwealth (all were Philippines born). Information on Members and territorial delegates includes party affiliations, length and dates of service, and committee assignments.
Date: April 19, 2002
Creator: Tong, Lorraine H.
open access

Asian Pacific Americans in the United States Congress

Description: This report provides information on the 33 Asian Pacific Americans who have served in the United States Congress from 1903 to the present, including 13 Resident Commissioners from the Philippine Islands. These Resident Commissioners served from 1907-1946 while the Philippines were a U.S. territory and commonwealth (all were Philippine born). Information on Members and territorial delegates includes party affiliations, length and dates of service, and committee assignments.
Date: April 19, 2002
Creator: Tong, Lorraine H.
open access

ASIC Wafer Test System for the ATLAS Semiconductor Tracker Front-End Chip

Description: An ASIC wafer test system has been developed to provide comprehensive production screening of the ATLAS Semiconductor Tracker front-end chip (ABCD3T). The ABCD3T[1] features a 128-channel analog front-end, a digital pipeline, and communication circuitry, clocked at 40 MHz, which is the bunch crossing frequency at the LHC (Large Hadron Collider). The tester measures values and tolerance ranges of all critical IC parameters, including DC parameters, electronic noise, time resolution, clock levels… more
Date: March 19, 2002
Creator: Anghinolfi, F.; Bialas, W.; Busek, N.; Ciocio, A.; Cosgrove, D.; Fadeyev, V. et al.
open access

Assessment of Metal Media Filters for Advanced Coal-Based Power Generation Applications

Description: Advanced coal and biomass-based gas turbine power generation technologies (IGCC, PFBC, PCFBC, and Hipps) are currently under development and demonstration. Efforts at Siemens Westinghouse Power Corporation (SWPC) have been focused on the development and demonstration of hot gas filter systems as an enabling technology for power generation. This paper reviews SWPC's material and component assessment efforts, identifying the performance, stability, and life of porous metal, advanced alloy, and in… more
Date: September 19, 2002
Creator: Alvin, Mary Ann
open access

Atomistic Simulation of Defect Properties in BCC Tantalum

Description: The fundamental atomic-level properties of point and line defects in bcc Ta have been simulated by means of quantum-based multi-ion interatomic potentials derived from the model generalized pseudopotential theory (MGPT). The potentials have been applied to the calculations of point defect formation and migration energies. The results are then compared with the ab-initio electronic-structure results and experimental data, which in turn provide rigorous validation tests of the MGPT potentials. Ro… more
Date: April 19, 2002
Creator: Yang, L H; Soderlind, P & Moriarty, J A
open access

Automated Nondestructive Evaluation Method for Characterizing Ceramic and Metallic Hot Gas Filters

Description: The objective of this work was to develop a nondestructive (NDE), cost-effective and reliable method to assess the condition of rigid ceramic hot gas filters. The work was intended to provide an end user, as well as filter producers, with a nondestructive method to assess the ''quality'' or status of the filters.
Date: September 19, 2002
Creator: Ellingson, W. A.; Pastila, P.; Koehl, E. R.; Wheeler, B.; Deemer, C. & Forster, G. A.
Back to Top of Screen