UNT Libraries Government Documents Department - 11 Matching Results

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Integration of defense waste into the Civilian Repository Program

Description: The purpose of this audit was to determine whether the fee calculation method proposed by Waste Management would result in an accurate and fair allocation of costs to both civilian and defense owners of nuclear waste. We reviewed Waste Management`s proposed cost allocation plans to be used in calculating fees for defense waste disposal. We also evaluated Waste Management`s actions toward developing a defense waste fee payment schedule. Our examination was made in accordance with generally accep… more
Date: March 24, 1988
Item Type: Refine your search to only Report
open access

Investigation of resonance states in the glueball-enhanced channel /pi//sup /minus//p /yields/ /phi//phi/n

Description: In this paper we discuss the striking evidence for the g/sub T/(2010), g/sub T//prime/(2300) and g/sub T//prime//prime/(2340) I/sup G/J/sup PC/ = O/sup +/2/sup ++/ resonances which comprise virtually all of the /pi//sup /minus//p /yields/ /phi//phi/n. The complete breakdown of the expected OZI suppression, and the striking differences of these states from conventional states and background in other channels have so far only been successfully explained by assuming they are produced by 1-3 2/sup … more
Date: June 24, 1988
Creator: Lindenbaum, S. J.; Foley, K. J.; Eiseman, S. E.; Etkin, A.; Hackenburg, R. W.; Longacre, R. S. et al.
Item Type: Refine your search to only Article
open access

Lawrence Livermore National Laboratory DIII-D cooperation: 1987 annual report

Description: This report summarizes the Lawrence Livermore National Laboratory (LLNL) DIII-D cooperation during FY87. The LLNL participation in DIII-D concentrated on three principal areas: ECH and current-drive physics, divertor and edge physics, and tokamak operations. These topics are dicussed in this report. 27 refs., 11 figs.
Date: February 24, 1988
Creator: Allen, S. L.; Calderon, M. O.; Ellis, R. M.; Evans, J. C.; Ferguson, S. W.; Hill, D. N. et al.
Item Type: Refine your search to only Report
open access

MFH Top-Half Ring Connectros

Description: In the end calorimeter of the D-zero experiment, uranium and stainless steel plates are assembled into modules which are to be installed into the cryostat as individual units. A single inner module will be surrounded by 16 middle modules, which are surrounded by 16 outer modules. The 16 modules which comprise the middle ring are to be connected at the outer radius by a link, which is pinned to each front plate. The expected forces at each of the 16 connections vary from 1400 Ib to 69,000 lb (Ap… more
Date: October 24, 1988
Creator: Nachtrieb, Rob
Item Type: Refine your search to only Report
open access

Optimal filtering, parameter tracking, and control of nonlinear nuclear reactors

Description: This paper presents a new formulation of a class of nonlinear optimal control problems in which the system's signals are noisy and some system parameters are changing arbitrarily with time. The methodology is validated with an application to a nonlinear nuclear reactor model. A variational technique based on Pontryagin's Maximum Principle is used to filter the noisy signals, estimate the time-varying parameters, and calculate the optimal controls. The reformulation of the variational technique … more
Date: June 24, 1988
Creator: March-Leuba, C.; March-Leuba, J. & Perez, R.B.
Item Type: Refine your search to only Article
open access

The quark-hadron phase transition in the early universe

Description: A first order phase transition between the quark-gluon plasma and the hadron gas can have important consequences for cosmology. These consequences result from the generation of isothermal baryon number density fluctuations as the universe passes through the phase transition. Calculations based upon simple models for the statistical mechanics of the two phases indicate that these fluctuations have large amplitude. The fluctuations persist after completion of the phase transition, being slowly da… more
Date: June 24, 1988
Creator: Alcock, C. R.; Fuller, G. M. & Mathews, G. J.
Item Type: Refine your search to only Article
open access

Surprising theoretical results on the decay rate of the /tau/ lepton

Description: Corrections to the naive prediction for the inclusive semihadronic decay rate of the /tau/ lepton contain several surprises: electroweak corrections are significant, nonperturbative QCD corrections can be treated systematically, and the order ed /sub s/T perturbative QCD corrections are enormous. The possibility of precise theoretical predictions of the decay rate is discussed. 10 refs.
Date: October 24, 1988
Creator: Braaten, E.
Item Type: Refine your search to only Article
open access

Time-series investigation of anomalous thermocouple responses in a liquid-metal-cooled reactor

Description: A study was undertaken using SAS software to investigate the origin of anomalous temperature measurements recorded by thermocouples (TCs) in an instrumented fuel assembly in a liquid-metal-cooled nuclear reactor. SAS macros that implement univariate and bivariate spectral decomposition techniques were employed to analyze data recorded during a series of experiments conducted at full reactor power. For each experiment, data from physical sensors in the tests assembly were digitized at a sampling… more
Date: March 24, 1988
Creator: Gross, K.C.; Planchon, H.P. & Poloncsik, J.
Item Type: Refine your search to only Article
open access

The use of scans for impact studies of transportation packages

Description: This paper presents the results of an impact study using the computer program SCANS (Shipping Cask ANalysis System), which was developed by Lawrence Livermore National Laboratory (LLNL) for the US Nuclear Regulatory Commission (NRC) and the Department of Energy (DOE) for structural analysis of transportation packages of radioactive materials. The program operates on IBM PC and compatible microcomputers. It has capabilities for other analysis such as heat transfer, pressure and thermal stress an… more
Date: June 24, 1988
Creator: Mok, G.C. & Witte, M.C.
Item Type: Refine your search to only Article
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