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Final Report: Biological and Synthetic Nanostructures Controlled at the Atomistic Level
Nanotechnology holds great promise for many application fields, ranging from the semiconductor industry to medical research and national security. Novel, nanostructured materials are the fundamental building blocks upon which all these future nanotechnologies will be based. In this Strategic Initiative (SI) we conducted a combined theoretical and experimental investigation of the modeling, synthesis, characterization, and design techniques which are required to fabricate semiconducting and metallic nanostructures with enhanced properties. We focused on developing capabilities that have broad applicability to a wide range of materials and can be applied both to nanomaterials that are currently being developed for nanotechnology applications and also to new, yet to be discovered, nanomaterials. During this 3 year SI project we have made excellent scientific progress in each of the components of this project. We have developed first-principles techniques for modeling the structural, electronic, optical, and transport properties of materials at the nanoscale. For the first time, we have simulated nanomaterials both in vacuum and in aqueous solution. These simulation capabilities harness the worldleading computational resources available at LLNL to model, at the quantum mechanical level, systems containing hundreds of atoms and thousands of electrons. Significant advances in the density functional and quantum Monte Carlo techniques …
Date:
February 21, 2007
Creator:
Williamson, A & van Buuren, T
Object Type:
Report
System:
The UNT Digital Library
Bases for PUREX deactivation safety equipment list
None
Date:
November 21, 1994
Creator:
Walser, R. L.
Object Type:
Report
System:
The UNT Digital Library
A Voltage Controlled Oscillator for a Phase-Locked Loop Frequency Synthesizer in a Silicon-on-Sapphire Process
Engineers from a government-owned engineering and manufacturing facility were contracted by government-owned research laboratory to design and build an S-band telemetry transmitter using Radio Frequency Integrated Circuit (RFIC) technology packaged in a Low-Temperature Co-fired Ceramic (LTCC) Multi-Chip Module. The integrated circuit technology chosen for the Phase-Locked Loop Frequency Synthesizer portion of the telemetry transmitter was a 0.25 um CMOS process that utilizes a sapphire substrate and is fabricated by Peregrine Semiconductor corporation. This thesis work details the design of the Voltage Controlled Oscillator (VCO) portion of the PLL frequency synthesizer and constitutes an fully integrated VCO core circuit and a high-isolation buffer amplifier. The high-isolation buffer amplifier was designed to provide 16 dB of gain for 2200-3495 MHz as well as 60 dB of isolation for the oscillator core to provide immunity to frequency pulling due to RF load mismatch. Actual measurements of the amplifier gain and isolation showed the gain was approximately 5 dB lower than the simulated gain when all bond-wire and test substrate parasitics were taken into account. The isolation measurements were shown to be 28 dB at the high end of the frequency band but the measurement was more than likely compromised due to the aforementioned …
Date:
May 21, 2009
Creator:
Garrison, Sean
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The "FTO List" and Congress: Sanctioning Designated Foreign Terrorist Organizations
The purpose of this report is to provide Congress with an overview of the nature and status of the designated foreign terrorist organizations list, as a potential tool in overseeing the implementation and effects of U.S. legislation designed to sanction terrorists
Date:
October 21, 2003
Creator:
Cronin, Audrey Kurth
Object Type:
Report
System:
The UNT Digital Library
Firearm and Explosives Background Checks Involving Terrorist Watch List Records
Correspondence issued by the Government Accountability Office with an abstract that begins "This report formally transmits a briefing in response to a Congressional request. Specifically, Congress requested that GAO update our January 2005 report entitled, Gun Control and Terrorism: FBI Could Better Manage Firearm-Related Background Checks Involving Terrorist Watch List Records, GAO-05-127 (Washington, D.C.: Jan. 19, 2005). Under the Brady Handgun Violence Prevention Act and implementing regulations, the Federal Bureau of Investigation (FBI) and designated state and local criminal justice agencies use the FBI's National Instant Criminal Background Check System (NICS) to conduct checks on individuals before federal firearms licensees (gun dealers) may transfer any firearm to an unlicensed individual. Also, to assist the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF), the FBI conducts NICS background checks on individuals seeking to obtain a federal explosives license or permit. Under current law, there is no basis to automatically prohibit a person from possessing firearms or explosives because they appear on the terrorist watch list. Rather, there must be a disqualifying factor (i.e., prohibiting information) pursuant to federal or state law, such as a felony conviction or illegal immigration status. In response to the request, this report addresses (1) the number …
Date:
May 21, 2009
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
2020 Census: Bureau Needs to Improve Scheduling Practices to Enhance Ability to Meet Address List Development Deadlines
A letter report issued by the Government Accountability Office with an abstract that begins "The Census Bureau (Bureau) is not producing reliable schedules for the two programs most relevant to building the Master Address File (MAF)--the 2020 Research and Testing program and the Geographic Support System Initiative."
Date:
November 21, 2013
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Prescription Drug Abuse
This report examines prescription drug abuse in the United States. An estimated 6.8 million individuals currently abuse prescription drugs in the United States. Unlike policy on street drugs, federal policy on prescription drug abuse is complicated by the need to maintain access to prescription controlled substances (PCS) for legitimate medical use. The federal government has several roles in reducing prescription drug abuse.
Date:
May 21, 2014
Creator:
Bagalman, Erin; Sacco, Lisa N.; Thaul, Susan & Yeh, Brian T.
Object Type:
Report
System:
The UNT Digital Library
Parameter studies for a two-component fusion experiment
None
Date:
May 21, 1975
Creator:
Towner, H. H.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Analysis of hazardous biological material by MALDI mass spectrometry
Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-MS) has become a valuable tool for analyzing microorganisms. The speed with which data can be obtained from MALDI-MS makes this a potentially important tool for biological health hazard monitoring and forensic applications. The excitement in the mass spectrometry community in this potential field of application is evident by the expanding list of research laboratories pursuing development of MALDI-MS for bacterial identification. Numerous research groups have demonstrated the ability to obtain unique MALDI-MS spectra from intact bacterial cells and bacterial cell extracts. The ability to differentiate strains of the same species has been investigated. Reproducibility of MALDI-MS spectra from bacterial species under carefully controlled experimental conditions has also been demonstrated. Wang et al. have reported on interlaboratory reproducibility of the MALDI-MS analysis of several bacterial species. However, there are still issues that need to be addressed, including the careful control of experimental parameters for reproducible spectra and selection of optimal experimental parameters such as solvent and matrix.
Date:
March 21, 2000
Creator:
Wahl, K. L.; Jarman, K. H.; Valentine, N. B.; Kingsley, M. T.; Petersen, C. E.; Cebula, S. T. et al.
Object Type:
Report
System:
The UNT Digital Library
[Texas Surgical Society Minutes: January 21, 1932]
Minutes from a special meeting of the council of the Texas Surgical Society, held in Fort Worth, Texas. Included is a list of members present, as well as a list of topics discussed and what took place at the meeting.
Date:
January 21, 1932
Creator:
Weaver, Samuel D.
Object Type:
Text
System:
The Portal to Texas History
Military Base Closures: The 2005 BRAC Commission
The President and Congress have completed the selection of nine members to the 2005 Base Realignment and Closure Commission. On or about May 16, 2005, the Department of Defense (DOD) is to send the Commission its recommended list of installations to be closed or realigned. The Commission, in turn, is to spend several months reviewing DOD’s list, and then forward its findings and recommendations to the President no later than September 8, 2005.
Date:
March 21, 2005
Creator:
Else, Daniel H. & Lockwood, David E.
Object Type:
Report
System:
The UNT Digital Library
Cybersecurity: Legislation, Hearings, and Executive Branch Documents
This report provides links to cybersecurity-related committee hearings in the 112th, 113th, and 114th Congresses. It also provides a list of executive orders and presidential directives pertaining to information and computer security.
Date:
October 21, 2016
Creator:
Tehan, Rita
Object Type:
Report
System:
The UNT Digital Library
Medal of Honor Recipients: 1979-2004
This report describes and discusses changes to the list of recipients of the Medal since the release of the committee print, Medal of Honor Recipients: 1863-1978, which lists recipients and provides the full text of the citations describing the actions that resulted in the awarding of the Medal.
Date:
June 21, 2004
Creator:
Richardson, Glenda
Object Type:
Report
System:
The UNT Digital Library
Year 2000 Computing Challenge: Compliance Status Information on Biomedical Equipment
Testimony issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO discussed the year 2000 status of biomedical equipment, focusing on: (1) the status of the Food and Drug Administration's (FDA) Federal Year 2000 Biomedical Equipment Clearinghouse; (2) compliance status information on manufacturers' web sites referred to in FDA's clearinghouse; (3) FDA's efforts to review the year 2000 activities of manufacturers of computer-controlled, potentially high-risk devices; (4) information on the compliance status of health care providers' biomedical equipment; and (5) information on compliance testing of equipment."
Date:
October 21, 1999
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
Results of Aging Tests of Vendor-Produced Blended Feed Simulant
The Hanford Tank Waste Treatment and Immobilization Plant (WTP) is procuring through Pacific Northwest National Laboratory (PNNL) a minimum of five 3,500 gallon batches of waste simulant for Phase 1 testing in the Pretreatment Engineering Platform (PEP). To make sure that the quality of the simulant is acceptable, the production method was scaled up starting from laboratory-prepared simulant through 15-gallon vendor prepared simulant and 250-gallon vendor prepared simulant before embarking on the production of the 3500-gallon simulant batch by the vendor. The 3500-gallon PEP simulant batches were packaged in 250-gallon high molecular weight polyethylene totes at NOAH Technologies. The simulant was stored in an environmentally controlled environment at NOAH Technologies within their warehouse before blending or shipping. For the 15-gallon, 250-gallon, and 3500-gallon batch 0, the simulant was shipped in ambient temperature trucks with shipment requiring nominally 3 days. The 3500-gallon batch 1 traveled in a 70-75°F temperature controlled truck. Typically the simulant was uploaded in a PEP receiving tank within 24-hours of receipt. The first uploading required longer with it stored outside. Physical and chemical characterization of the 250-gallon batch was necessary to determine the effect of aging on the simulant in transit from the vendor and in storage …
Date:
April 21, 2009
Creator:
Russell, Renee L.; Buchmiller, William C.; Cantrell, Kirk J.; Peterson, Reid A. & Rinehart, Donald E.
Object Type:
Report
System:
The UNT Digital Library
The Gonzales Inquirer. (Gonzales, Tex.), Vol. 1, No. 34, Ed. 1 Saturday, January 21, 1854
Weekly newspaper from Gonzales, Texas that includes local, state and national news along with advertising.
Date:
January 21, 1854
Creator:
Smith, S. W.
Object Type:
Newspaper
System:
The Portal to Texas History
The Jasper News-Boy (Jasper, Tex.), Vol. 7, No. 32, Ed. 1 Thursday, November 21, 1872
Weekly newspaper from Jasper, Texas that includes local, state and national news along with some advertising.
Date:
November 21, 1872
Creator:
Carraway, T. J.
Object Type:
Newspaper
System:
The Portal to Texas History
103-06A-A5-Base Visit Book - Army - Umatilla Army Depot-OR.pdf
Table of Contents A. Itinerary B. Base Summary Sheet C. Secretary Of Defense Recommendation D. Military Value E. Installation Review F. State Map and Statistical Data G. State Closure History List H. Press Articles and Correspondence I. Additional Information
Date:
June 21, 2005
Creator:
unknown
Object Type:
Book
System:
The UNT Digital Library
Atomic processes in high-density plasmas
This review covers dense atomic plasmas such as that produced in inertial confinement fusion. The target implosion physics along with the associated atomic physics, i.e., free electron collision phenomena, electron states I, electron states II, and nonequilibrium plasma states are described. (MOW)
Date:
December 21, 1982
Creator:
More, R.M.
Object Type:
Article
System:
The UNT Digital Library
NMC33 - Base Visit Book Navy MC - Naval Base Ventura County - CA
TABLE OF CONTENTS *ITINERARY *BASE SUMMARY SHEET *SPIDER CHARTS *INSTALLATION REVIEW *STATE MAP AND STATISTICAL DATA *STATE CLOSURE HISTORY LIST *PRESS ARTICLES AND CORRESPONDENCE *COMMUNITY CONCERNS *COMMANDING OFFICER'S BIO
Date:
July 21, 2005
Creator:
United States. Defense Base Closure and Realignment Commission.
Object Type:
Book
System:
The UNT Digital Library
103-06A-AF1-A3A-Base Visit Book - Air Force Army - Pope Air Force Base Fort Bragg-NC.pdf
Table of Contents A. Itinerary B. Base Summary Sheet C. Secretary of Defense Recommendation D. Military Capabilities Index E. Installation Review F. State Map and Statistical Data G. State Closure History List H. Press Articles And Correspondence
Date:
June 21, 2005
Creator:
unknown
Object Type:
Book
System:
The UNT Digital Library
Honeywell Modular Automation System Acceptance Test Procedure
The purpose of this Acceptance Test Procedure (ATP) is to verify the operability of the three new furnaces as controlled by the new Honeywell Modular Automation System (MAS). The Honeywell MAS is being installed in PFP to control the three thermal stabilization furnaces in glovebox HA-211. The ATP provides instructions for testing the configuration of the Honeywell MAS at the Plutonium Finishing Plant(PFP). The test will be a field test of the analog inputs, analog outputs, and software interlocks. The interlock test will check the digital input and outputs. Field equipment will not be connected forth is test. Simulated signals will be used to test thermocouple, limit switch, and vacuum pump inputs to the PLUMAS.
Date:
September 21, 1999
Creator:
STUBBS, A.M.
Object Type:
Report
System:
The UNT Digital Library
Review of Tank Lay-Up Status at US Department of Energy Radioactive Waste Tank Sites
During fiscal year (FY) 2001 as part of a Tanks Focus Area strategic intiative, tank lay-up options were developed and evaluated for the two high-level waste (HLW) storage tanks at the West Valley Demonstration Project. As follow-on task, a list of key waste tank contacts throughout the US Department of Energy complex was developed. Visits were then made to the primary DOE sites with radioactive waste storage tanks to discuss the concept and applicablility of tank lay-up. This report documents the results of individual discussions with tank closure staff at the four DOE Sites concerning tank closure status and plans as well as lay-up options and activities.
Date:
June 21, 2002
Creator:
Elmore, Monte R. & Henderson, Colin
Object Type:
Report
System:
The UNT Digital Library
Afghanistan: Post-War Governance, Security, and U.S. Policy
Afghanistan’s stabilization appears to be gathering strength, about three years after the U.S.-led war that brought the current government to power. Successful presidential elections held on October 9, 2004 appear to be accelerating political and economic reconstruction, and the insurgency led by remnants of the former Taliban regime has been diminishing significantly. Since the defeat of the Taliban, Afghanistan no longer serves as a safe base of operations for Al Qaeda. Remaining obstacles to stability include the continued local authority of militias controlled by regional leaders and growing narcotics trafficking. U.S. stabilization measures focus on strengthening the central government and its security forces. This report discusses U.S. efforts in Afghanistan at length, as well as the efforts of other countries around the world and the costs of U.S. aid to Afghanistan.
Date:
April 21, 2005
Creator:
Katzman, Kenneth
Object Type:
Report
System:
The UNT Digital Library