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$D^0 \bar{D}^0$ Mixing at BaBar
This article reviews the recent measurement of D{sup 0}-{bar D}{sup 0} mixing with the D{sup 0} {yields} K{pi} decay channel from the BABAR experiment at the PEP-II B-Factory. Averages from the Heavy Flavor Averaging Group between this result and a previous result from BELLE are also presented.
Date:
October 26, 2011
Creator:
Coleman, Jonathon
Object Type:
Article
System:
The UNT Digital Library
D-0 South End Cap Calorimeter Cold Test Results
The South endcap calorimeter vessel was moved into Lab A on Sept. 18, 1990. A cooldown of the pressure vessel with liquid nitrogen was performed on Sept. 26 to check the vessel's integrity. With the pressure vessel cold, the insulating vacuum was monitored for leaks. Through out the testing, the insulating vacuum remained good and the vessel passed the test. The cold test was carried out per the procedures of D-Zero engineering note 3740.220-EN-250. The test was very similar to the cold test performed on the Central Calorimeter in October of 1987. The test of the ECS was performed in the same manner using the same equipment as the ECN cold test. Reference D-Zero engineering notes 3740.210-EN-122, 3740.000-EN-I07, and 3740.210-EN-II0 for information about the CC cold test. Reference EN-260 for the results of the ECN cold test. The insulating vacuum space was pumped on while equipment was being connected to the pressure vessel. Two hours after starting to pump with the blower the vacuum space pressure was at about 40 microns. The pumping continued overnight (another 16 hours). In the morning the pressure was 11.5 microns. A rate of rise test was performed. With the pump valved off, the pressure …
Date:
November 26, 1990
Creator:
Rucinski, R.
Object Type:
Report
System:
The UNT Digital Library
1-/sup 11/C-D-glucose and related compounds
The novel compounds 1-/sup 11/C-D-glucose, 1-/sup 11/C-D-mannose, 1-/sup 11/C-D-galactose, 2-/sup 11/C-D-glucose, 2-/sup 11/C-D-mannose and 2-/sup 11/C-D-galactose which can be used in nuclear medicine to monitor the metabolism of glucose and galactose can be rapidly prepared by reaction of the appropriate aldose substrate with an alkali metal /sup 11/C-labeled cyanide followed by reduction with a Raney alloy in formic acid.
Date:
January 26, 1982
Creator:
Shiue, Chyng-Yann & Wolf, Alfred P.
Object Type:
Patent
System:
The UNT Digital Library
2 Hz, 30 T Split Pulse Water Cooled Magnet for Neutron Scattering Experiments (Materials Characterization and Design Options)
None
Date:
August 26, 1997
Creator:
Eyssa, Y. M.; Walsh, R. P.; Miller, J. R.; Miller, G. E.; Pernambuco-Wise, P.; Bird, M. D. et al.
Object Type:
Report
System:
The UNT Digital Library
A 3-D hydrodynamic dispersion model for modeling tracer transport in Geothermal Reservoirs
A 3-D hydrodynamic dispersion model for tracer transport is developed and implemented into the TOUGH2 EOS3 (T2R3D) module. The model formulation incorporates a full dispersion tensor, based on a 3-D velocity field with a 3-D, irregular grid in a heterogeneous geological system. Two different weighting schemes are proposed for spatial average of 3-D velocity fields and concentration gradients to evaluate the mass flux by dispersion and diffusion of a tracer or a radionuclide. This new module of the TOUGH2 code is designed to simulate processes of tracer/radionuclide transport using an irregular, 3-D integral finite difference grid in non-isothermal, three-dimensional, multiphase, porous/fractured subsurface systems. The numerical method for this transport module is based on the integral finite difference scheme, as in the TOUGH2 code. The major assumptions of the tracer transport module are: (a) a tracer or a radionuclide is present and transported only within the liquid phase, (b) transport mechanisms include molecular diffusion and hydrodynamic dispersion in the liquid phase in addition to advection, and (c) first order decay and linear adsorption on rock grains are taken into account. The tracer or radionuclide is introduced as an additional mass component into the standard TOUGH2 formulation, time is discretized fully implicitly, …
Date:
January 26, 1998
Creator:
Wu, Yu-Shu & Pruess, Karsten
Object Type:
Article
System:
The UNT Digital Library
04-ERD-052-Final Report
Generating the sequence of the human genome represents a colossal achievement for science and mankind. The technical use for the human genome project information holds great promise to cure disease, prevent bioterror threats, as well as to learn about human origins. Yet converting the sequence data into biological meaningful information has not been immediately obvious, and we are still in the preliminary stages of understanding how the genome is organized, what are the functional building blocks and how do these sequences mediate complex biological processes. The overarching goal of this program was to develop novel methods and high throughput strategies for determining the functions of ''anonymous'' human genes that are evolutionarily deeply conserved in other vertebrates. We coupled analytical tool development and computational predictions regarding gene function with novel high throughput experimental strategies and tested biological predictions in the laboratory. The tools required for comparative genomic data-mining are fundamentally the same whether they are applied to scientific studies of related microbes or the search for functions of novel human genes. For this reason the tools, conceptual framework and the coupled informatics-experimental biology paradigm we developed in this LDRD has many potential scientific applications relevant to LLNL multidisciplinary research in bio-defense, …
Date:
February 26, 2007
Creator:
Loots, G. G.; Ovcharenko, I.; Collette, N.; Babu, P.; Chang, J.; Stubbs, L. et al.
Object Type:
Report
System:
The UNT Digital Library
5 kWe reactor power distributions
None
Date:
June 26, 1972
Creator:
Bost, D.S.
Object Type:
Report
System:
The UNT Digital Library
The “8(a) Program” for Small Businesses Owned and Controlled by the Socially and Economically Disadvantaged: Legal Requirements and Issues
This report discusses the "8(a) Program", the Minority Small Business and Capital Ownership Development Program, which is a federal contracting for small businesses providing small businesses with training, technical assistance, and contracting opportunities.
Date:
November 26, 2014
Creator:
Manuel, K. M.
Object Type:
Report
System:
The UNT Digital Library
9-11 Commission Hearing #7, January 26, 2004, Part 1
Recording of the seventh public hearing held by the National Commission on Terrorist Attacks upon the United States on January 26-27 at the Hart Senate Office Building in Washington, D.C. This hearing specifically addresses the topics of border and aviation security. In addition, several staff statements from the Commission were delivered during the course of the proceedings. This section includes the first staff statement on the entry of the 9/11 hijackers into the United States and the first panel on the border security system prior to September 11, with testimony from Mary A. Ryan and Doris Meissner.
Date:
January 26, 2004
Creator:
National Commission on Terrorist Attacks upon the United States
Object Type:
Video
System:
The UNT Digital Library
9-11 Commission Hearing #7, January 26, 2004, Part 2
Recording of the seventh public hearing held by the National Commission on Terrorist Attacks upon the United States on January 26-27 at the Hart Senate Office Building in Washington, D.C. This hearing specifically addresses the topics of border and aviation security. In addition, several staff statements from the Commission were delivered during the course of the proceedings. This section includes the panel on an incident in Florida with testimony from Jose E. Mendelez-Perez.
Date:
January 26, 2004
Creator:
National Commission on Terrorist Attacks upon the United States
Object Type:
Video
System:
The UNT Digital Library
9-11 Commission Hearing #7, January 26, 2004, Part 3
Recording of the seventh public hearing held by the National Commission on Terrorist Attacks upon the United States on January 26-27 at the Hart Senate Office Building in Washington, D.C. This hearing specifically addresses the topics of border and aviation security. In addition, several staff statements from the Commission were delivered during the course of the proceedings. This section includes the staff statement on three 9/11 hijackers: identification, watchlisting, and tracking, in addition to the third panel on visas and watchlisting today, with testimony from Maura Harty, Russell E. Travers, and Donna A. Buccella.
Date:
January 26, 2004
Creator:
National Commission on Terrorist Attacks upon the United States
Object Type:
Video
System:
The UNT Digital Library
9-11 Commission Hearing #7, January 26, 2004, Part 4
Recording of the seventh public hearing held by the National Commission on Terrorist Attacks upon the United States on January 26-27 at the Hart Senate Office Building in Washington, D.C. This hearing specifically addresses the topics of border and aviation security. In addition, several staff statements from the Commission were delivered during the course of the proceedings. This section includes the fourth panel on the response to September 11 on the borders with testimony from James Ziglar, Robert C. Bonner, and Peter F. Verga.
Date:
January 26, 2004
Creator:
National Commission on Terrorist Attacks upon the United States
Object Type:
Video
System:
The UNT Digital Library
11.424 Ghz Stripline Transversal Filter for Sub-Picosecond Bunch Timing Measurements
Measurement of time-of-arrival or instantaneous longitudinal position is a fundamental beam diagnostic. We present results from a stripline transversal periodic coupler structure which forms the heart of a sub-ps beam timing detector. This filter structure approximates a sinx/x response in the frequency domain which corresponds to a limited pulse length response in the time domain. These techniques have been used extensively in beam feedback systems at 3 GHz center frequencies with operational single-shot resolutions of 200 fs [1]. We present a new design, based on a 11.424 GHz center frequency, which is intended to offer a factor of four improvement in time resolution. Two-dimensional electromagnetic simulation results are shown, and the design optimization approach leading to the final circuit implementation is illustrated. The prototype circuit has been fabricated on 64mil Rogers 4003 and lab frequency domain and time domain data are compared to the 2-D simulation results. Performance of the prototype circuit is shown with applicability to sub-ps beam measurements in LINAC and FEL applications.
Date:
August 26, 2010
Creator:
Van Winkle, D.; Young, A. & Fox, J. D.
Object Type:
Article
System:
The UNT Digital Library
A 15-T Pulsed Solenoid for a High-Power Target Experiment
The MERIT experiment, to be run 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 initial performance of the 15-T, liquid-nitrogen-precooled, copper solenoid magnet.
Date:
June 26, 2006
Creator:
Kirk, H. G.; Efthymiopoulos, I.; Fabich, A.; Haug, R.; Titus, P.; McDonald, K. T. et al.
Object Type:
Article
System:
The UNT Digital Library
A 37,500 KW Power Reactor with Competitive Possibilities
The following report follows the study on economics of nuclear power generation using a light water reactor.
Date:
February 26, 1954
Creator:
Thompson, W. I. & Cohen, Karl
Object Type:
Report
System:
The UNT Digital Library
40-MW(E) PROTOTYPE HIGHTEMPERATURE GAS-COOLED REACTOR. POST CONSTRUCTION RESEARCH AND DEVELOPMENT PROGRAM. Quarterly Progress Report for Period Ending January 31, 1965
None
Date:
February 26, 1965
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
90-Ton Triple Cylinder Jack Design
The three D-Zero cryostats (2 EC and 1 CC) will rest on three carriages which in turn ride on a set of hardened ways in the center beam. A pair of Tychoway rollers will be fitted to each of the four corners of the three carriages to provide the rolling support. In the final design, the two EC cryostats will be able to roll out and away from the CC cryostat in order to provide access to the space between each cryostat for maintenance and repairs. The cryostat will be frequently accessed, about once a month. during a collider run. The heaviest cryostat weighs about 360 tons. The large roller weight in one position for such a long period of time, created a concern about the rollers dimpling the hardened ways or even suffering permanent deformations themselves. There is also the possibility that the vertical position of the cryostat will need to be adjusted to align it with the beam line or that the carriage and cryostat will have to be lifted to remove and service the rollers. A device or system was needed to (1) relieve the weight of the cryostats from the rollers and the hardened ways, and …
Date:
September 26, 1988
Creator:
Jaques, Al
Object Type:
Report
System:
The UNT Digital Library
100 Area D4 Project Building Completion Report: December 2008 to December 2009
This report documents the final status of buildings after the completion of D4 activities at the 100 Area of the U.S. Department of Energy Hanford Site from December 1, 2008, to December 31, 2009.
Date:
October 26, 2010
Creator:
K.G. Finucane, J.P. Harrie
Object Type:
Report
System:
The UNT Digital Library
100 Areas: April 16--April 22
Reported are: physics (B pile, D pile, F pile, general physics); and water, corrosion and engineering (process water control and pressure drop studies, purging studies, removal of process tube B-3671).
Date:
April 26, 1946
Creator:
Jordan, W. E.
Object Type:
Report
System:
The UNT Digital Library
100 Areas: (For Technical Progress Letter No. 107), July 16--22
This technical progress report details 100 Area activities for the time period of July 16 through July 22, 1946.
Date:
July 26, 1946
Creator:
Jordan, W. E.
Object Type:
Report
System:
The UNT Digital Library
125 TON MPC WASTE PACKAGE SHIELDING ANALYSIS/2-D DORT (SCPB: N/A)
This analysis is prepared by the Mined Geologic Disposal System (MGDS) Waste Package Development Department (WPDD) to determine the dose rates from the MPC waste packages to be used by the EBS and other repository systems to incorporate ALARA practices in the overall repository design in compliance with the goals of the Waste Package Implementation Plan for conceptual design. These design calculations are performed in sufficient detail to provide a comprehensive comparison base with other design alternatives. The objectives of this evaluation are (1) to show the dose rate as a function of distance from the waste package surface and (2) to provide the shielding thicknesses required for the waste package transporter to meet a 10 mrem/hr target dose rate at 2 meters from the transporter surface.
Date:
February 26, 1996
Creator:
Skulina, D. J.
Object Type:
Report
System:
The UNT Digital Library
200 area effluent treatment facility opertaional test report
This document reports the results of the 200 Area Effluent Treatment Facility (200 Area ETF) operational testing activities. These Operational testing activities demonstrated that the functional, operational and design requirements of the 200 Area ETF have been met and identified open items which require retesting.
Date:
October 26, 1995
Creator:
Crane, A.F.
Object Type:
Report
System:
The UNT Digital Library
222-S LABORATORY FUME HOOD TESTING STUDY
The 222-S Laboratory contains 155 active fume hoods that are used to support analytical work with radioactive and/or toxic materials. The performance of a fume hood was brought into question after employees detected odors in the work area while mixing chemicals within the subject fume hood. Following the event, testing of the fume hood was conducted to assess the performance of the fume hood. Based on observations from the testing, it was deemed appropriate to conduct performance evaluations of other fume hoods within the laboratory.
Date:
March 26, 2007
Creator:
Ruelas, B. H.
Object Type:
Report
System:
The UNT Digital Library
234-5 Building design philosophy
This report presents the building and design philosophy of Building 234-5 at the Hanford site.
Date:
November 26, 1947
Creator:
Work, J. B.
Object Type:
Report
System:
The UNT Digital Library