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1-D Van der Waals Foams Heated by Ion Beam Energy Deposition

Description: One dimensional simulations of various initial average density aluminum foams (modeled as slabs of solid metal separated by low density regions) heated by volumetric energy deposition are conducted with a Lagrangian hydrodynamics code using a van der Waals equation of tate (EOS). The resulting behavior is studied to facilitate the design of future warm dense matter (WDM) experiments at LBNL. In the simulations the energy deposition ranges from 10 to 30 kJ/g and from 0.075 to 4.0 ns total pulse length, resulting in temperatures from approximately 1 o 4 eV. We study peak pressures and temperatures in the foams, expansion velocity, and the phase evolution. Five relevant time scales in the problem are identified. Additionally, we present a method for characterizing the level of inhomogeneity in a foam target as it is heated and the time it takes for a foam to homogenize.
Date: December 23, 2009
Creator: Zylstra, A. B.; Barnard, J. J. & More, R. M.
Partner: UNT Libraries Government Documents Department
open access

A 3-dimensional theory of free electron lasers

Description: In this paper, we present an analytical three-dimensional theory of free electron lasers. Under several assumptions, we arrive at an integral equation similar to earlier work carried out by Ching, Kim and Xie, but using a formulation better suited for the initial value problem of Coherent Electron Cooling. We use this model in later papers to obtain analytical results for gain guiding, as well as to develop a complete model of Coherent Electron Cooling.
Date: August 23, 2010
Creator: Webb, S. D.; Wang, G. & Litvinenko, V. N.
Partner: UNT Libraries Government Documents Department
open access

6 GeV light source project cost estimating procedure

Description: To maintain uniformity in estimating the cost requirements of the various components of the 6 GeV Light Source, the following procedure will be used by all the task groups. The procedure uses a Work Breakdown Structure (VBS) to break down the project into manageable, easy to estimate, components. The project is first broken down into major tasks or categories. Then each major division is continuously subdivided until the desired level of detail is achieved. This can be shown best by using the example of the WBS of the Aladdin Upgrade Project, excerpts of which are included in Appendix A.
Date: October 23, 1985
Partner: UNT Libraries Government Documents Department
open access

An 8-Foot Axisymmetrical Fixed Nozzle for Subsonic Mach Numbers Up to 0.99 and for a Supersonic Mach Number of 1.2

Description: From Introduction: "This paper, which should be of interest to those concerned with transonic wind tunnels, covers the design and operating characteristics of the nozzle."
Date: February 23, 1950
Creator: Ritchie, Virgil S.; Wright, Ray H. & Tulin, Marshall P.
Partner: UNT Libraries Government Documents Department
open access

8-oxoguainine enhances bending of DNA that favors binding of glycosylases

Description: Molecular dynamics (MD) simulations were carried out on the DNA oligonucleotide GGGAACAACTAG:CTAGTTGTTCCC in its native form and with guanine in the central G19:C6 base pair replaced by 8-oxoguanine (8oxoG). A box of explicit water molecules was used for solvation and Na+ counterions were added to neutralize the system. The direction and magnitude of global bending were assessed by a technique used previously to analyze simulations of DNA containing a thymine dimer. The presence of 8oxoG did not greatly affect the magnitude of DNA bending; however, bending into the major groove was significantly more probable when 8oxoG replaced G19. Crystal structures of glycosylases bound to damaged-DNA substrates consistently show a sharp bend into the major groove at the damage site. We conclude that changes in bending dynamics that assist the formation of this kink are a part of the mechanism by which glycosylases of the base excision repair pathway recognize the presence of 8oxoG in DNA.
Date: April 23, 2003
Creator: Miller, John H.
Partner: UNT Libraries Government Documents Department
captions transcript

9-11 Commission Hearing #2, May 23, 2003, Part 1

Description: Recording of the second public hearing held by the National Commission on Terrorist Attacks upon the United States on May 23 in Washington, D.C. This hearing addresses four topics, which include the commission mandate and objectives, intelligence oversight and the joint inquiry, affected constituencies, and the state of civil aviation security on September 11th. This section includes the panel on civil aviation security, with testimony from Norman Mineta, Major General Craig McKinley, and Lieutenant General Mike Canavan on the attacks and the response to the 9/11 attacks.
Date: May 23, 2003
Duration: 2 hours 6 minutes 47 seconds
Creator: National Commission on Terrorist Attacks upon the United States
Partner: UNT Libraries Government Documents Department
captions transcript

9-11 Commission Hearing #2, May 23, 2003, Part 2

Description: Recording of the second public hearing held by the National Commission on Terrorist Attacks upon the United States on May 23, 2003 in Washington, D.C. This hearing addresses four topics, which include the commission mandate and objectives, intelligence oversight and the joint inquiry, affected constituencies, and the state of civil aviation security on September 11th. This section concludes the panel on civil aviation security, with testimony from Stephen McHale, Major General O.K. Steele, and Mary Schiavo on reforming civil aviation security.
Date: May 23, 2003
Duration: 2 hours 31 minutes 29 seconds
Creator: National Commission on Terrorist Attacks upon the United States
Partner: UNT Libraries Government Documents Department
captions transcript

9-11 Commission Hearing #8, March 23, 2004, Part 1

Description: Recording of the eighth public hearing held by the National Commission on Terrorist Attacks upon the United States on March 23, 2004 at the Hart Senate Office Building in Washington, D.C. The two-day hearing investigated the formulation and conduct of U.S. counterterrorism policy, with particular emphasis on the period from the August 1998 embassy bombings to September 11, 2001. In addition to witness testimony, four staff statements were delivered during the course of the proceedings. This section includes the staff statement on diplomacy, in addition to the panel on counterterrorism policy with testimony from Madeline K. Albright.
Date: March 23, 2004
Duration: 2 hours 2 minutes 32 seconds
Creator: National Commission on Terrorist Attacks upon the United States
Partner: UNT Libraries Government Documents Department
captions transcript

9-11 Commission Hearing #8, March 23, 2004, Part 2

Description: Recording of the eighth public hearing held by the National Commission on Terrorist Attacks upon the United States on March 23, 2004 at the Hart Senate Office Building in Washington, D.C. The two-day hearing investigated the formulation and conduct of U.S. counterterrorism policy, with particular emphasis on the period from the August 1998 embassy bombings to September 11, 2001. In addition to witness testimony, four staff statements were delivered during the course of the proceedings. This section continues the panel on counterterrorism policy with testimony from Colin L. Powell and Richard Armitage.
Date: March 23, 2004
Duration: 1 hour 34 minutes 58 seconds
Creator: National Commission on Terrorist Attacks upon the United States
Partner: UNT Libraries Government Documents Department
captions transcript

9-11 Commission Hearing #8, March 23, 2004, Part 3

Description: Recording of the eighth public hearing held by the National Commission on Terrorist Attacks upon the United States on March 23, 2004 at the Hart Senate Office Building in Washington, D.C. The two-day hearing investigated the formulation and conduct of U.S. counterterrorism policy, with particular emphasis on the period from the August 1998 embassy bombings to September 11, 2001. In addition to witness testimony, four staff statements were delivered during the course of the proceedings. This section continues the panel on counterterrorism policy with testimony from William S. Cohen.
Date: March 23, 2004
Duration: 2 hours 1 minute 17 seconds
Creator: National Commission on Terrorist Attacks upon the United States
Partner: UNT Libraries Government Documents Department
captions transcript

9-11 Commission Hearing #8, March 23, 2004, Part 4

Description: Recording of the eighth public hearing held by the National Commission on Terrorist Attacks upon the United States on March 23, 2004 at the Hart Senate Office Building in Washington, D.C. The two-day hearing investigated the formulation and conduct of U.S. counterterrorism policy, with particular emphasis on the period from the August 1998 embassy bombings to September 11, 2001. In addition to witness testimony, four staff statements were delivered during the course of the proceedings. This section concludes the panel on counterterrorism policy with testimony from Donald H. Rumsfeld, Paul Wolfowitz, and Richard Myers.
Date: March 23, 2004
Duration: 1 hour 53 minutes 37 seconds
Creator: National Commission on Terrorist Attacks upon the United States
Partner: UNT Libraries Government Documents Department
open access

9/11 Commission Recommendations: The Senate Confirmation Process for Presidential Nominees

Description: On July 22, 2004, the National Commission on Terrorist Attacks Upon the United States, known as the 9/11 Commission, issued its final report, detailing the events up to and including the September 11, 2001 terrorist attacks upon the United States. The 9/11 Commission recommended that the Senate adopt rules requiring hearings and votes to confirm or reject national security nominees within 30 days of their submission at the start of each new presidential administration. Implementing the commission's proposal would involve imposing new restrictions on both the power of committee chairs to control the agenda of their committees and the rights of Senators to delay or block nominations through holds and extended debate. This report discusses in detail this proposal, how it could be implemented, and the potential effects of its implementation.
Date: March 23, 2005
Creator: Palmer, Betsy
Partner: UNT Libraries Government Documents Department
open access

10 Things You Can Do To Make Our Schools Better

Description: Photocopy of a clipping from Parade Magazine, featuring an article titled, "10 Things You Can Do To Make Our Schools Better," by Vartan Gregorian. Gregorian will become the President of the Carnegie Corporation of New York in June, 1997. Gregorian is one of the leading authorities on education in America and has written a list about some things concerned individuals can do right now to better the schools and education in the area. The 10th thing on Gregorian's list is to restore the arts as a major element in education. "We've made a tremendous mistake in diminishing or eliminating art, music and dance as fluff or frills."
Date: March 23, 1997
Creator: Gregorian, Vartain
Partner: UNT Libraries Special Collections
open access

A 15-T Pulsed Solenoid for a High-Power Target Experiment

Description: The MERIT experiment, which ran at CERN in 2007, is a proof-of-principle test for a target system that converts a 4-MW proton beam into a high-intensity muon beam for either a neutrino factory complex or a muon collider. The target system is based on a free mercury jet that intercepts an intense proton beam inside a 15-T solenoidal magnetic field. Here, we describe the design and performance of the 15-T, liquid-nitrogen-precooled, copper solenoid magnet.
Date: June 23, 2008
Creator: Kirk,H.G.; Efthymiopoulos, I.; Fabich, A.; Haug, F.; Pereira, H.; Titus, P. et al.
Partner: UNT Libraries Government Documents Department
open access

19 mm ballistic range: a potpourri of techniques and recipes

Description: The expansion of ballistic gun range facilities at LLL has introduced state-of-the-art diagnostic techniques to glovebox-enclosed ballistic guns systems. These enclosed ballistic ranges are designed for the study of one- dimensional shock phenomena in extremely toxic material such as plutonium. The extension of state-of-the-art phtographic and interferometric diagnostic systems to glovebox-enclosed gun systems introduces new design boundaries and performance criteria on optical and mechanical components. A technique for experimentally evaluating design proposals is illustrated, and several specific examples (such as, target alignment, collateral shrapnel damage, and soft recovery) are discussed. (auth)
Date: September 23, 1975
Creator: Carpluk, G.T.
Partner: UNT Libraries Government Documents Department
open access

40-kV, 25-ms neutral-beam power supply for TMX

Description: Modifications are described to upgrade the neutral-beam power supply for the TMX from 40 kV, 10 ms to 40 kV, 25 ms. The redesign of the accel and suppressor power supplies to achieve separation of the high-voltage and control sections, operation of the arc pulse lines in series, operation of the arc pulse lines in a noisy environment with SCR trigger and crowbar, and modifications to the electrolytic storage banks are discussed.
Date: September 23, 1977
Creator: Leavitt, G.A.
Partner: UNT Libraries Government Documents Department
open access

100 Area electrical distribution fault and coordination report

Description: This report documents three-phase and line-to-ground fault values and time overcurrent coordination curves for the electrical utility distribution system located in the 100 Areas. Activities that may improve the coordination of the distribution system have also been identified. An evaluation of system coordination was performed. The results of this evaluation are listed in Appendix B. There are protective devices within the 100 Area distribution system that do not coordinate with one another throughout the Areas. There is also a mis-application of reclosing relays at the 100B Area. The impact of the mis-coordination and incorrect application of reclosing relays is that system selectivity is reduced. Equipment will still be protected against damaging currents, however more equipment will be de-energized than necessary during fault conditions. It is the opinion of the author of this report that the cases of mis-coordination listed above, and in Appendix B, do not significantly degrade the system protection system nor the reliability of the 100 Area distribution system. Therefore, immediate response to correct these problems is not recommended. However, a planned methodology, outlined in an Activity Plan, to correct these problems should be developed and implemented in the near future.
Date: September 23, 1994
Creator: Webber, J. J.
Partner: UNT Libraries Government Documents Department
open access

100 Area Water Study

Description: This paper gives a cost breakdown of all the water facilities in the 100-F area for the month of January, 1948. Also given is the cost of chlorine for addition to the process water system along with where it is added and in what amounts. Lastly, the average figure for the hardness for the Columbia River water at Hanford.
Date: September 23, 1948
Creator: Beekman, S. W.
Partner: UNT Libraries Government Documents Department
open access

103-06A-DA4-Base Input from BRAC Commission Visit to National Geospatial-Intelligence Agency, MD dtd 26 May 2005

Description: 103-06A-DA4-Base Input from BRAC Commission Visit to National Geospatial-Intelligence Agency, MD dtd 26 May 2005. Input includes NGA Presentation for Chairman Principi, NGA Facilities Consolidation Plan and BRAC Impacts, and National Geospatial-Intelligence Agency Activities Deliberative Package.
Date: June 23, 2005
Partner: UNT Libraries Government Documents Department
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