UNT Libraries Government Documents Department - 573 Matching Results

Search Results

Results: 1 - 24 next
open access

19-electron intermediates in the Ligand Substitution of CpW(CO)3with a Lewis Base

Description: Odd electron species are important intermediates in organometallic chemistry, participating in a variety of catalytic and electron-transfer reactions which produce stable even-electron products. While electron deficient 17-electron (17e) radicals have been well characterized, the possible existence of short-lived 19-electron (19e) radicals has been a subject of continuing investigation. 19e radicals have been postulated as intermediates in the photochemical ligand substitution and disproportion… more
Date: December 14, 2005
Creator: Cahoon, James F.; Kling, Matthias F.; Sawyer, Karma R.; Frei,Heinz & Harris, Charles B.
Item Type: Refine your search to only Article
open access

45-Day safety screen results for single shell tank 241-AP-106, liquid grab samples, riser 1, 30{degrees} and 150{degrees} in conjunction with evaporator campaign 95-1

Description: This is the 45-Day report for the fiscal year 1995 safety screening characterization of three liquid grab samples from single shell tank 241-AP-106. The required analyses are differential scanning calorimetry (DSC), thermal gravimetric analysis (TGA) and appearance (APPR). No analytes exceeded the notification limits, therefore, secondary analyses (RSST, cyanide, and hot persulfate-total organic carbon) were not required. Summary data tables 2, 3 and 4 present the appearance, DSC and TGA data, … more
Date: December 14, 1994
Creator: Miller, G. L.
Item Type: Refine your search to only Report
open access

105KE Basin Area Radiation Monitor System (ARMS) Acceptance Test Procedure

Description: This procedure is intended for the Area Radiation Monitoring System, ARMS, that is replacing the existing Programmable Input-Output Processing System, PIOPS, radiation monitoring system in the 105KE basin. The new system will be referred to as the 105KE ARMS, 105KE Area Radiation Monitoring System. This ATP will ensure calibration integrity of the 105KE radiation detector loops. Also, this ATP will test and document the display, printing, alarm output, alarm acknowledgement, upscale check, and … more
Date: December 14, 1999
Creator: Kinkel, C. C.
Item Type: Refine your search to only Report
open access

1978 USGS Geothermal Resource Assessment

Description: The author distinguishes between geothermal resource base, accessible geothermal resource base, geothermal resource, and geothermal reserve. Conditions for periodically updating the assessment of geothermal energy resources include: increased data from expanded exploration and drilling; development of improved and new technologies for exploration, evaluation, extraction, and use; rapid evolution of geothermal knowledge; and the increased role of geothermal energy in response to changing economi… more
Date: December 14, 1977
Creator: Muffler, L.J. Patrick
Item Type: Refine your search to only Article
open access

2000 Census: Contingency Planning Needed to Address Risks That Pose a Threat to a Successful Census

Description: A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO provided information on the Year 2000 census, focusing on: (1) the need to boost the declining level of public participation in the census; and (2) the Census Bureau's need to collect timely and accurate data from nonrespondents."
Date: December 14, 1999
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Report
open access

2008 Oak Ridge National Laboratory Annual Illness and Injury Surveillance Report

Description: The U.S. Department of Energy’s (DOE) commitment to assuring the health and safety of its workers includes the conduct of epidemiologic surveillance activities that provide an early warning system for health problems among workers. The Illness and Injury Surveillance Program monitors illnesses and health conditions that result in an absence of workdays, occupational injuries and illnesses, and disabilities and deaths among current workers.
Date: December 14, 2009
Creator: United States. Department of Energy. Office of Illness and Injury Prevention Programs.
Item Type: Refine your search to only Report
open access

2010 Census: Data Collection Operations Were Generally Completed as Planned, but Long-standing Challenges Suggest Need for Fundamental Reforms

Description: A letter report issued by the Government Accountability Office with an abstract that begins "Although the U.S. Census Bureau (Bureau) generally completed the field data collection phase of the 2010 Census consistent with its operational plans, at $13 billion, 2010 was the costliest census in the nation's history. Moving forward, it will be important to both refine existing operations as well as to reexamine the fundamental approach to the census to better address long-standing issues such as se… more
Date: December 14, 2010
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Report
open access

2010 Census: Follow-up Should Reduce Coverage Errors, but Effects on Demographic Groups Need to Be Determined

Description: A letter report issued by the Government Accountability Office with an abstract that begins "The U.S. Census Bureau (Bureau) puts forth tremendous effort to conduct a complete and accurate count of the nation's population and housing; yet some degree of error in the form of persons missed, duplicated, or counted in the wrong place is inevitable due to the complexity in counting a large and diverse population. The Bureau designed two operations, Coverage Follow-up (CFU) and Field Verification (F… more
Date: December 14, 2010
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Report
open access

2010 Census: Key Efforts to Include Hard-to-Count Populations Went Generally as Planned; Improvements Could Make the Efforts More Effective for Next Census

Description: A letter report issued by the Government Accountability Office with an abstract that begins "To overcome the long-standing challenge of enumerating hard-to-count (HTC) groups such as minorities and renters, the U.S. Census Bureau (Bureau), used outreach programs, such as paid advertising, and partnered with thousands of organizations to enlist their support for the census. The Bureau also conducted Service-Based Enumeration (SBE), which was designed to count people who frequent soup kitchens or… more
Date: December 14, 2010
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Report
open access

2D Optical Streaking for Ultra-Short Electron Beam Diagnostics

Description: We propose a novel approach to measure short electron bunch profiles at micrometer level. Low energy electrons generated during beam-gas ionization are simultaneously modulated by the transverse electric field of a circularly-polarized laser, and then they are collected at a downstream screen where the angular modulation is converted to a circular shape. The longitudinal bunch profile is simply represented by the angular distribution of the electrons on the screen. We only need to know the lase… more
Date: December 14, 2011
Creator: Ding, Y.T.; Huang, Z. & Wang, L.
Item Type: Refine your search to only Article
open access

Advanced Motors

Description: Project Summary Transportation energy usage is predicted to increase substantially by 2020. Hybrid vehicles and fuel cell powered vehicles are destined to become more prominent as fuel prices rise with the demand. Hybrid and fuel cell vehicle platforms are both dependent on high performance electric motors. Electric motors for transportation duty will require sizeable low-speed torque to accelerate the vehicle. As motor speed increases, the torque requirement decreases which results in a nearly… more
Date: December 14, 2012
Creator: Knoth, Edward A.; Chelluri, Bhanumathi & Schumaker, Edward J.
Item Type: Refine your search to only Report
open access

Advancing Climate and Carbon Simulation

Description: We use a recently developed integrated climate/carbon model to perform breakthrough studies of the climate. Two major studies are carried out--namely the effects of CO{sub 2}-fertilized vegetation on global climate and carbon dynamics, and the effect of climate sensitivity on carbon cycle feedback. We have also begun development of a next-generation climate/carbon modeling capability.
Date: December 14, 2004
Creator: Thompson, S.
Item Type: Refine your search to only Report
open access

An agent-based tool for infrastructure interdependency policy analysis.

Description: Complex Adaptive Systems (CAS) can be applied to investigate complex infrastructure interdependencies such as those between the electric power and natural gas markets. These markets are undergoing fundamental transformations including major changes in electric generator fuel sources. Electric generators that use natural gas as a fuel source are rapidly gaining market share. These generators introduce direct interdependency between the electric power and natural gas markets. These interdependenc… more
Date: December 14, 2000
Creator: North, M. J.
Item Type: Refine your search to only Article
open access

AIDS in Africa

Description: Sub-Saharan Africa has been far more severely affected by AIDS than any other part of the world. The United Nations reports that 25.3 million adults and children are infected with the HIV virus in the region, which has about 10% of the world's population but more than 70% of the worldwide total of infected people. This report discusses this issue in detail, including the cause of the African AIDS epidemic, the social and economic consequences, response and treatment, and U.S. policy.
Date: December 14, 2001
Creator: Copson, Raymond W.
Item Type: Refine your search to only Report
open access

Aircraft compass characteristics

Description: From Summary: "A description of the test methods used at the National Bureau of Standards for determining the characteristics of aircraft compasses is given. The methods described are particularly applicable to compasses in which mineral oil is used as the damping liquid. Data on the viscosity and density of certain mineral oils used in United States Navy aircraft compasses are presented. Results of flight tests are presented."
Date: December 14, 1935
Creator: Peterson, John B. & Smith, Clyde W.
Item Type: Refine your search to only Report
open access

Alpha Fuels Environmental Test Facility impact gun

Description: The Alpha Fuels Environmental Test Facility (AFETF) impact gun is a unique tool for impact testing /sup 238/PuO/sub 2/-fueled heat sources of up to 178-mm dia at velocities to 300 m/s. An environmentally-sealed vacuum chamber at the muzzle of the gun allows preheating of the projectile to 1,000/sup 0/C. Immediately prior to impact, the heat source projectile is completely sealed in a vacuum-tight catching container to prevent escape of its radioactive contents should rupture occur. The impact v… more
Date: December 14, 1978
Creator: Anderson, C.G.
Item Type: Refine your search to only Report
open access

Alpha Particle Physics Experiments in the Tokamak Fusion Test Reactor

Description: Alpha particle physics experiments were done on the Tokamak Fusion Test Reactor (TFTR) during its deuterium-tritium (DT) run from 1993-1997. These experiments utilized several new alpha particle diagnostics and hundreds of DT discharges to characterize the alpha particle confinement and wave-particle interactions. In general, the results from the alpha particle diagnostics agreed with the classical single-particle confinement model in magnetohydrodynamic (MHD) quiescent discharges. Also, the ob… more
Date: December 14, 1998
Creator: Budny, R. V.; Darrow, D. S.; Medley, S. S.; Nazikian, R. & Zweben, S. J.
Item Type: Refine your search to only Report
open access

ANALYSIS--GRAPHITE CORE STRUCTURE

Description: A study was made to determine the structural and functional adequacy of the EGCR graphite core design. Maximum stress and distortion of the core and the probable operating time before graphite cracking were determined. The major cause of stress is non-uniform fast-neutron flux, which causes non-uniform shrinkage of graphite components. The critical stress was found to be tensile. The criterion for determining the time of cracking of graphite columns appears to be the point at which the creep st… more
Date: December 14, 1960
Creator: Newton, R.R.
Item Type: Refine your search to only Report
open access

Analysis of Geothermal Well Logs

Description: In the petroleum industry, well logging is a well developed discipline that has matured over a fifty-year period. Compared to this, geothermal well logging is a very new field of activity. The current practice is to use the same logging equipment and the same log interpretation techniques for geothermal wells as had been used for petroleum wells. However, this approach has proven either inadequate or ineffective in most geothermal areas. The problems here are of two types: (1) those associated … more
Date: December 14, 1977
Creator: Sanyal, Subir K.
Item Type: Refine your search to only Article
Back to Top of Screen