31 Matching Results

Search Results

Results: 1 - 24 next
open access

Finite element analysis of the SDC barrel and endcap calorimeters

Description: In designing the SCD barrel and endcap calorimeters, the inter-module connecting forces must be known in order to determine the required size and number of connecting links between modules, and in order to understand how individual modules will be affected by these forces when assembled to form a full barrel and endcap. The connecting forces were found by analyzing three-dimensional Finite Element Models of both the barrel and endcap. This paper is divided into two parts, the first part will de… more
Date: March 11, 1992
Creator: Guarino, V.; Hill, N. & Nasiakta, J.
Partner: UNT Libraries Government Documents Department
open access

Object technology: A white paper

Description: Object-Oriented Technology (OOT), although not a new paradigm, has recently been prominently featured in the trade press and even general business publications. Indeed, the promises of object technology are alluring: the ability to handle complex design and engineering information through the full manufacturing production life cycle or to manipulate multimedia information, and the ability to improve programmer productivity in creating and maintaining high quality software. Groups at a number of… more
Date: May 11, 1992
Creator: Jordan, S. R.; Arrowood, L. F.; Cain, W. D.; Stephens, W. M. & Vickers, B. D.
Partner: UNT Libraries Government Documents Department
open access

Full-scale demonstration Low-NO sub x Cell trademark Burner retrofit

Description: The Low-NO{sub x} Cell{trademark} Burner operates on the principle of staged combustion. The lower burner of each two-nozzle cell is modified to accommodate all the fuel input previously handled by two nozzles. Secondary air, less than theoretically required for complete combustion, is introduced to the lower burner. The remainder of secondary air is directed to the upper port'' of each cell to complete the combustion process. B W/EPRI have thoroughly tested the LNCB{trademark} at two pilot sca… more
Date: May 11, 1992
Partner: UNT Libraries Government Documents Department
open access

Liquid centrifugation for nuclear waste partitioning

Description: The performance of liquid centrifugation for nuclear waste partitioning is examined for the Accelerator Transmutation of Waste Program currently under study at the Los Alamos National Laboratory. Centrifugation might have application for the separation of the LiF-BeF{sub 2} salt from heavier radioactive materials fission product and actinides in the separation of fission product from actinides, in the isotope separation of fission-product cesium before transmutation of the {sup 137}Cs and {sup … more
Date: March 11, 1992
Creator: Bowman, C. D.
Partner: UNT Libraries Government Documents Department
open access

Compression of fingerprint data using the wavelet vector quantization image compression algorithm. 1992 progress report

Description: This report describes the development of a Wavelet Vector Quantization (WVQ) image compression algorithm for fingerprint raster files. The pertinent work was performed at Los Alamos National Laboratory for the Federal Bureau of Investigation. This document describes a previously-sent package of C-language source code, referred to as LAFPC, that performs the WVQ fingerprint compression and decompression tasks. The particulars of the WVQ algorithm and the associated design procedure are detailed … more
Date: April 11, 1992
Creator: Bradley, J. N. & Brislawn, C. M.
Partner: UNT Libraries Government Documents Department
open access

The single electron chemistry of coals. Quarterly report, July 1--September 30, 1992

Description: Depolymerization of coals at low temperatures may offer advantages over thermal bond cleavage. Because bond cleavage energies of radical cations are lower than the corresponding homolytic bond cleavage energies of the same bond, generation of radical cations in coal may make possible depolymerization at lower temperatures. We seek to investigate the above possibility using single molecules containing functional groups common in coals. Since the generation of a radical cation requires the remova… more
Date: November 11, 1992
Creator: Larsen, J. W. & Eskay, T. P.
Partner: UNT Libraries Government Documents Department
open access

Sodium tetraphenylborate solution stability: A long term study

Description: Sodium tetraphenylborata (NaTPB) is a specialty chemical required for the In Tank Precipitation Process (ITP). It precipitates cesium, aiding in the decontamination of high level radioactive waste solutions. Long term stability of aqueous alkaline solutions of NATPB has been investigated. The focus of the investigation is on the relative stabilities of NATPB solutions exposed to varying temperatures and copper concentrations over an extended period of time. Additionally, vendor-supplied samples… more
Date: June 11, 1992
Creator: Barnes, M. J.
Partner: UNT Libraries Government Documents Department
open access

Finite element analysis of the SDC barrel and endcap calorimeters

Description: In designing the SCD barrel and endcap calorimeters, the inter-module connecting forces must be known in order to determine the required size and number of connecting links between modules, and in order to understand how individual modules will be affected by these forces when assembled to form a full barrel and endcap. The connecting forces were found by analyzing three-dimensional Finite Element Models of both the barrel and endcap. This paper is divided into two parts, the first part will de… more
Date: March 11, 1992
Creator: Guarino, V.; Hill, N. & Nasiakta, J.
Partner: UNT Libraries Government Documents Department
open access

Liquid centrifugation for nuclear waste partitioning

Description: The performance of liquid centrifugation for nuclear waste partitioning is examined for the Accelerator Transmutation of Waste Program currently under study at the Los Alamos National Laboratory. Centrifugation might have application for the separation of the LiF-BeF{sub 2} salt from heavier radioactive materials fission product and actinides in the separation of fission product from actinides, in the isotope separation of fission-product cesium before transmutation of the {sup 137}Cs and {sup … more
Date: March 11, 1992
Creator: Bowman, C. D.
Partner: UNT Libraries Government Documents Department
open access

Development and testing of an industrial scale coal fired slagging combustion system, Phase 3. Task 2.1, Preliminary systems test plan

Description: The planned effort for the task 2 tests has four major objectives. They are computer controlled combustor operation, optimization of SO2 reduction, combustor materials durability, and testing focused on application to industrial coal fired boilers. Several major advances in the combustor development have occurred since this original plan was proposed in 1991. Some of these advances occurred in tests performed in a project that was completed in June 1992, while others occurred during the design … more
Date: September 11, 1992
Partner: UNT Libraries Government Documents Department
open access

Full-scale demonstration Low-NO{sub x} Cell{trademark} Burner retrofit. Quarterly report No. 6, January 1, 1992--March 31, 1992

Description: The Low-NO{sub x} Cell{trademark} Burner operates on the principle of staged combustion. The lower burner of each two-nozzle cell is modified to accommodate all the fuel input previously handled by two nozzles. Secondary air, less than theoretically required for complete combustion, is introduced to the lower burner. The remainder of secondary air is directed to the upper ``port`` of each cell to complete the combustion process. B&W/EPRI have thoroughly tested the LNCB{trademark} at two pilot s… more
Date: May 11, 1992
Partner: UNT Libraries Government Documents Department
open access

Analysis of HFIR pressurizer pump overspeed transients and relief valve performance

Description: The pressurizer pump overspeed transients at the High Flux Isotope Reactor (HFIR) fall in the category of {open_quotes}increase in coolant inventory transients.{close_quotes} They are among the accident transients to be performed for Chapter 15 of the HFIR safety analysis report (SAR). The pressurizer pump speed starting to increase inadvertently to reach its maximum speed of 3,560 rpm while the reactor operates under normal conditions is the cause of this transient. Increased primary coolant s… more
Date: September 11, 1992
Creator: Sozer, M. C.
Partner: UNT Libraries Government Documents Department
open access

A new emergency response model for MACCS. Final report

Description: Under DOE sponsorship, as directed by the Los Alamos National Laboratory (LANL), the MACCS code (version 1.5.11.1) [Ch92] was modified to implement a series of improvements in its modeling of emergency response actions. The purpose of this effort has been to aid the Westinghouse Savannah River Company (WSRC) in its performance of the Level III analysis for the Savannah River Site (SRS) probabilistic risk analysis (PRA) of K Reactor [Wo90]. To ensure its usefulness to WSRC, and facilitate the ne… more
Date: November 11, 1992
Creator: Chanin, D. I.
Partner: UNT Libraries Government Documents Department
open access

Establishment of a viable population of red-cockaded woodpeckers at the Savannah River Site. Annual report, FY1992

Description: The Southeastern Forest Experiment Station (SEFES) began research on the red-cockaded woodpecker (RCW) on the Savannah River Site (SRS) in 1985 with the objective of restoring a viable population. This Project is conducted in cooperation with the Department of Energy, the Savannah River Forest Station (SRFS) and the Savannah River Ecology Laboratory. The program has consisted of two phases. The stabilization phase (1985--1987) focused on preventing the immediate extirpation of the RCW populatio… more
Date: September 11, 1992
Creator: Laves, K. S.
Partner: UNT Libraries Government Documents Department
open access

Assessment of remote sensing technologies to discover and characterize waste sites

Description: This report presents details about waste management practices that are being developed using remote sensing techniques to characterize DOE waste sites. Once the sites and problems have been located and characterized and an achievable restoration and remediation program have been established, efforts to reclaim the environment will begin. Special problems to be considered are: concentrated waste forms in tanks and pits; soil and ground water contamination; ground safety hazards for workers; and … more
Date: March 11, 1992
Partner: UNT Libraries Government Documents Department
open access

Sodium tetraphenylborate solution stability: A long term study

Description: Sodium tetraphenylborata (NaTPB) is a specialty chemical required for the In Tank Precipitation Process (ITP). It precipitates cesium, aiding in the decontamination of high level radioactive waste solutions. Long term stability of aqueous alkaline solutions of NATPB has been investigated. The focus of the investigation is on the relative stabilities of NATPB solutions exposed to varying temperatures and copper concentrations over an extended period of time. Additionally, vendor-supplied samples… more
Date: June 11, 1992
Creator: Barnes, M.J.
Partner: UNT Libraries Government Documents Department
open access

The SU(3)-Nambu-Jona-Lasinio soliton in the collective quantization formulation

Description: On grounds of a semibosonized Nambu-Jona-Lasinio model, which has SU(3){sub R}{circle times}SU(3){sub L}-symmetry in the chiral limit, mass splittings for spin 1/2 and spin 3/2 baryons are studied in the presence of an explicit chiral symmetry breaking strange quark mass. To this aim these strangeness carrying baryons are understood as SU(3)-rotational excitations of an SU(2)-embedded soliton solution. Therefore, within the framework of collective quantization, the fermion determinant with the … more
Date: June 11, 1992
Creator: Blotz, A.; Goeke, K. (Washington Univ., Seattle, WA (United States). Inst. for Nuclear Theory Inst. fuer Theoretische Physik 2, Ruhr-Univ. Bochum (Germany)); Diakonov, D.; Petrov, V.; Pobylitsa, P.V. (St. Petersburg Nuclear Physics Inst., Gatchina (Russia)) & Park, N.W. (Inst. fuer Theoretische Physik 2, Ruhr-Univ. Bochum (Germany) Center for Theoretical Physics, Seoul National Univ. (Korea, Republic
Partner: UNT Libraries Government Documents Department
open access

IDMS and DWPF SRAT offgas flux and particle entrainment

Description: Bench scale experiments showed that the peak H2 generation rate increases with an increase in the PHA addition/evaporation rate. A 2,500 gal Slurry Mix Evaporator Condensate Tank (SMECT) was installed in the IDMS to allow performing PHA addition and evaporation both at the same rate and continuously. The SMECT allowed prototypic boil-up rates to be used, which allowed the investigation of hydrogen evolution in a more prototypic fashion and also made it possible to investigate solids entrainment… more
Date: November 11, 1992
Creator: Ritter, J. A.
Partner: UNT Libraries Government Documents Department
open access

Object technology: A white paper

Description: Object-Oriented Technology (OOT), although not a new paradigm, has recently been prominently featured in the trade press and even general business publications. Indeed, the promises of object technology are alluring: the ability to handle complex design and engineering information through the full manufacturing production life cycle or to manipulate multimedia information, and the ability to improve programmer productivity in creating and maintaining high quality software. Groups at a number of… more
Date: May 11, 1992
Creator: Jordan, S. R.; Arrowood, L. F.; Cain, W. D.; Stephens, W. M. & Vickers, B. D.
Partner: UNT Libraries Government Documents Department
open access

The SU(3)-Nambu-Jona-Lasinio Soliton in the Collective Quantization Formulation

Description: On grounds of a semibosonized Nambu-Jona-Lasinio model, which has SU(3){sub R}{circle_times}SU(3){sub L}-symmetry in the chiral limit, mass splittings for spin 1/2 and spin 3/2 baryons are studied in the presence of an explicit chiral symmetry breaking strange quark mass. To this aim these strangeness carrying baryons are understood as SU(3)-rotational excitations of an SU(2)-embedded soliton solution. Therefore, within the framework of collective quantization, the fermion determinant with the … more
Date: June 11, 1992
Creator: Blotz, A.; Goeke, K.; Diakonov, D.; Petrov, V.; Pobylitsa, P. V. & Park, N. W.
Partner: UNT Libraries Government Documents Department
open access

The single electron chemistry of coals

Description: Depolymerization of coals at low temperatures may offer advantages over thermal bond cleavage. Because bond cleavage energies of radical cations are lower than the corresponding homolytic bond cleavage energies of the same bond, generation of radical cations in coal may make possible depolymerization at lower temperatures. We seek to investigate the above possibility using single molecules containing functional groups common in coals. Since the generation of a radical cation requires the remova… more
Date: November 11, 1992
Creator: Larsen, John W. & Eskay, T. P.
Partner: UNT Libraries Government Documents Department
open access

Conceptual Design of Ferrite Turners for the RHIC 26 MHz Accelerating Cavity

Description: The preliminary design of a ferrite tuner has been completed, with the goal of providing enough information to obtain budgetary estimates of cost from vendors. The design is based on three tuners connected in parallel to the 26 MHz POP cavity to achieve greater than 260 kHz of tuning.
Date: August 11, 1992
Creator: Rose, J.
Partner: UNT Libraries Government Documents Department
open access

Tajikistan Republic: Basic Facts

Description: This report is on the then newly formed Tajikistan Republic. Information on the geographics, demographics, history, political leaders and institutions, and foreign relations of Tajikistan.
Date: June 11, 1992
Creator: Jacqueline Y. Pak
Partner: UNT Libraries Government Documents Department
Back to Top of Screen