This system will be undergoing maintenance April 18th between 9:00AM and 12:00PM CDT.

Search Results

open access

D0 papers on B-physics submitted to DPF '96: b-quark inclusive cross sections and b anti-b correlations using dimuons from the D0 experiment; Single muon production in the forward region at [radical]s=1. 8 TEV; Rapidity dependence of the inclusive J[psi] production in the forward region [radical]s=1. 8 TEV; A search for b [r arrow] X[mu][sup +][mu][sup [minus]] and B[sup 0] [r arrow] [mu][sup +][mu][sup [minus]] decays in p anti-p collisions at [radical]s=1. 8 TEV

Description: Paper 1: Using dimuons collected with the D0 detector during the 1993--1995 Tevatron collider run, the authors have measured the b-quark cross section and b[anti b] correlations as given by the difference in azimuthal angle between the two muons. Both measurements agree with the NLO QCD predictions within experimental and theoretical errors. (Three other papers are included in this report.)
Date: November 1, 1996
Creator: Vititoe, D.L. (Arizona Univ., Tucson, AZ (United States). Dept. of Physics); Kozelov, Alexander; Jesik, Richard & Collaboration., D0
Partner: UNT Libraries Government Documents Department
open access

Investigation of Head Burns in Adult Salmonids : Phase 1, Examination of Fish at Lookingglass Hatchery in 1996 : Addendum to Final Report.

Description: This information is an addendum to the report 'Investigation of Head Burns in Adult Salmonids, Phase 1: Examination of Fish at Lower Granite Dam, July 2, 1996' by Ralph Elston because there may be relevant observations included here. The author of this document participated in the examinations at Lower Granite Dam described in that report. Because of Endangered Species Act issues, the Rapid River stock of spring chinook salmon reared at Lookingglass Hatchery on the Grande Ronde River in northea… more
Date: November 1, 1996
Creator: Groberg, Warren J.
Partner: UNT Libraries Government Documents Department
open access

B-Quark Inclusive Cross Sections and B{Bar B} Correlations Using Dimuons From the D0 Experiment

Description: Using dimuons collected with the D{null} detector during the 1993- 1995 Tevatron collider run, we have measured the {ital b}-quark cross section and {ital b{anti b}} correlations as given by the difference in azimuthal angle between the two muons. Both measurements agree with the NLO QCD predictions within experimental and theoretical errors.
Date: November 1, 1996
Creator: Vititoe, D. L.
Partner: UNT Libraries Government Documents Department
open access

Wakimoto realizations of current algebras: an explicit construction

Description: A generalized Wakimoto realization of $\widehat\cal G_K$ can be associated with each parabolic subalgebra $\cal P=(\cal G_0 +\cal G_+)$ of a simple Lie algebra $\cal G$ according to an earlier proposal by Feigin and Frenkel. In this paper the proposal is made explicit by developing the construction of Wakimoto realizations from a simple but unconventional viewpoint. An explicit formula is derived for the Wakimoto current first at the Poisson bracket level by Hamiltonian symmetry reduction of th… more
Date: November 12, 1996
Creator: de Boer, Jan & Feher, Laszlo
Partner: UNT Libraries Government Documents Department
open access

Underground Test Area Subproject Phase I Data Analysis Task. Volume VI - Groundwater Flow Model Documentation Package

Description: Volume VI of the documentation for the Phase I Data Analysis Task performed in support of the current Regional Flow Model, Transport Model, and Risk Assessment for the Nevada Test Site Underground Test Area Subproject contains the groundwater flow model data. Because of the size and complexity of the model area, a considerable quantity of data was collected and analyzed in support of the modeling efforts. The data analysis task was consequently broken into eight subtasks, and descriptions of ea… more
Date: November 1, 1996
Partner: UNT Libraries Government Documents Department
open access

Investigation of Combined S02/N0x Removal by Ceria Sorbents

Description: This final report describes the work done under the sponsorship of the U.S. DOE for the support of advanced fossil resource utilization research at historically black colleges and universities, Grant No. DE-Ps22-92MT920 on "Investigation of Combined S02/NOx Removal by Ceria Sorbents". The work was conducted at the Department of Chemical Engineering of Hampton University. The industrial partner was Malcolm Pirnie,Inc. Environmental Engineers, Scientists and Planners, who handled the metal analys… more
Date: November 1, 1996
Creator: Akyurtlu, Ates & Akyurtlu, Jale F.
Partner: UNT Libraries Government Documents Department
open access

Modeling a set of heavy oil aqueous pyrolysis experiments

Description: Aqueous pyrolysis experiments, aimed at mild upgrading of heavy oil, were analyzed using various computer models. The primary focus of the analysis was the pressure history of the closed autoclave reactors obtained during the heating of the autoclave to desired reaction temperatures. The models used included a means of estimating nonideal behavior of primary components with regard to vapor liquid equilibrium. The modeling indicated that to match measured autoclave pressures, which often were we… more
Date: November 1, 1996
Creator: Thorsness, Charles B. & Reynolds, John G.
Partner: UNT Libraries Government Documents Department
open access

Final construction quality assurance report for the Y-12 Industrial Landfill V, Area 2, Oak Ridge, Tennessee

Description: Lockheed Martin Energy Systems (LMES) has finished construction of Area 2 of the Y-12 Plant Industrial Landfill (ILF-V), classified as a Class 2 Landfill. This final Construction Quality Assurance (CQA) Report provides documentation that Area 2 was constructed in substantial compliance with the Tennessee Department of Environment and Conservation (TDEC) approved design, as indicated and specified in the permit drawings, approved changes, and specifications. This report applies specifically to t… more
Date: November 1, 1996
Creator: Bessom, William H.
Partner: UNT Libraries Government Documents Department
open access

Rapid scanning mass spectrometer

Description: Mass spectrometers and residual gas analyzers (RGA) are used in a variety of applications for analysis of volatile and semi-volatile materials. Analysis is performed by detecting fragments of gas molecules, based on their mass to charge ratio, which are generated in the mass spectrometer. When used as a detector for a gas chromatograph, they function as a means to quantitatively identify isolated volatile species which have been separated from other species via the gas chromatograph. Vacuum Tec… more
Date: November 25, 1996
Creator: Leckey, John H. & Boeckmann, Mark D.
Partner: UNT Libraries Government Documents Department
open access

Effect of Radiation on Topopah Spring Tuff Mechanical Properties

Description: The effect of radiation on the mechanical properties of Topopah Spring tuff was investigated by performing uniaxial compressive tests on irradiated and control samples of the tuff from the potential repository horizon at Yucca Mountain. Test results are presented, including stress-strain curves and peak strength and Young`s modulus values. These results show that for homogeneous uncracked samples of Topopah Spring tuff, exposure to gamma radiation had no discernible effect on the unconfined par… more
Date: November 1, 1996
Creator: Berge, P. A. & Blair, S. C.
Partner: UNT Libraries Government Documents Department
open access

D0 Silicon Upgrade: Gas Helium Storage Tank Pressure Vessel Engineering Note

Description: This is to certify that Beaird Industries, Inc. has done a white metal blast per SSPC-SP5 as required per specifications on the vessel internal. Following the blast, a black light inspection was performed by Beaird Quality Control personnel to assure that all debris, grease, etc. was removed and interior was clean prior to closing vessel for helium test.
Date: November 11, 1996
Creator: Rucinski, Russ
Partner: UNT Libraries Government Documents Department
open access

A new 14 GHz electron-cyclotron-resonance ion source (ECRIS) for the heavy ion accelerator facility ATLAS: a status report

Description: A new 14 GHz ECRIS has been designed and built over the last 2 years. The source, a modification of the Berkeley AECR, incorporates the latest results from ECR developments to produce intense beams of highly charged ions, i.e., an improved electron confinement with an axial magnetic mirror ratio of 3.5 and a radial magnetic field inside the plasma chamber of 1.0 T. The aluminium plasma chamber and extraction electrode as well as a biased disk on axis at the microwave injection side donate addit… more
Date: November 1, 1996
Creator: Schlapp, M.; Vondrasek, R. C.; Szczech, J.; Billquist, P. J.; Pardo, R. C. & Xie, Z. Q.
Partner: UNT Libraries Government Documents Department
open access

Effects of ExB Velocity Shear and Magnetic Shear on Turbulence and Transport in Magnetic Confinement Devices

Description: One of the scientific success stories of fusion research over the past decade is the development of the ExB shear stabilization model to explain the formation of transport barriers in magnetic confinement devices. This model was originally developed to explain the transport barrier formed at the plasma edge in tokamaks after the L (low) to H (high) transition. This concept has the universality needed to explain the edge transport barriers seen in limiter and divertor tokamaks, stellarators, and… more
Date: November 1, 1996
Creator: Burrell, K. H.
Partner: UNT Libraries Government Documents Department
open access

Simulations of Laser Imprint for Nova Experiments and for Ignition Capsules

Description: In direct drive ICF, nonuniformities in laser illumination seed ripples at the ablation front in a process called imprint. These non nonuniformities grow during the capsule implosion and, if initially large enough, can penetrate the capsule shell, impede ignition, or degrade burn. Imprint has been simulated for recent experiments performed on the Nova laser at LLNL examining a variety of beam smoothing conditions. Most used laser intensities similar to the early part of an ignition capsule puls… more
Date: November 8, 1996
Creator: Weber, S. V.; Glendinning, S. G.; Kalantar, D. H.; Key, M. H.; Remington, B. A.; Rothenberg, J. E. et al.
Partner: UNT Libraries Government Documents Department
open access

Fiscal year 1996 laboratory scale studies of the WVNS flowsheet for remediation of Tank 8D-1 and Tank 8D-2

Description: These tests simulated the West Valley (WV) tank heel removal flowsheet in which oxalic acid solution (OAS) is used to elute Cs from zeolite in tank 8D-1 for 28 h. The eluent is then transferred to tank 8D-2, to dissolve the waste sludge heel. Sequence for the tests were: elute 10 g of Cs-loaded zeolite for 28 h at 50 C at 40 L/kg- zeolite, using 8 wt% OAS; decant used OAS and add 240 g waste slurry simulant, which was washed to <2g/L dissolved solids and containing 120-140 g total oxides/L; let… more
Date: November 1, 1996
Creator: Smith, H. D.; Smith, G. L.; Russell, R. L. & Patello, G. K.
Partner: UNT Libraries Government Documents Department
open access

Separation of gases with solid electrolyte ionic conductors

Description: The authors have developed a novel method of gas separation based on electrolyte ionic membrane technology. Separation of one gas from another occurs through an ion-conducting membrane by the passage of selected ions. Most systems studied have focused on oxygen ion conduction for the separation of oxygen from air, although protonic and halide-conducting solid materials also exist. As an example of this system, this paper concentrates on a study of a membrane reactor used in the production of sy… more
Date: November 1, 1996
Creator: Balachandran, U.; Dusek, J. T.; Maiya, P. S.; Mieville, R. L.; Ma, B.; Kleefisch, M. S. et al.
Partner: UNT Libraries Government Documents Department
open access

Fluorescence cross section measurements of biological agent simulants

Description: Fluorescence is a powerful technique that has potential uses in detection and characterization of biological aerosols both in the battlefield and in civilian environments. Fluorescence techniques can be used with ultraviolet (UV) light detection and ranging (LIDAR) equipment to detect biological aerosol clouds at a distance, to provide early warning of a biological attack, and to track an potentially noxious cloud. Fluorescence can also be used for detection in a point sensor to monitor biologi… more
Date: November 1, 1996
Creator: Stephens, John R.
Partner: UNT Libraries Government Documents Department
open access

Self-similarity and transport in the standard map

Description: Anomalous transport is investigated for the Standard Map. A chain of exact self similar islands in the vicinity of the period 5 accelerator island is found for a particular value of the map parameter. The transport is found to be superdiffusive with an anomalous exponent related to the characteristic temporal and spatial scaling parameters of the island chain. The value of the transport exponent is compared to the theory. The escape time distribution and Poincare recurrence distribution are fou… more
Date: November 1996
Creator: Benkadda, S.; Kassibrakis, S.; White, R. B. & Zaslavsky, G. M.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen