UNT Libraries Government Documents Department - 70 Matching Results

Search Results

Results: 1 - 24 next
open access

242-A/LERF programmable Logic Controller Ladder. Revision 1

Description: This document defines and describes the user-generated application software written to transmit digital and analog signals from the Liquid Effluent Retention Facility (LERF) to the 242-A Evaporator Distributed Control System (DCS). PLCs and modems were installed in the 242-A Evaporator by Project W-105 (LERF) to transmit 6 analog liquid level signals, 6 range alarms based on the analog signals, and 6 leak detection and pump status signals to the 242-A Distributive Control System (DCS) from LERF… more
Date: May 23, 1995
Creator: Teats, M.C.
Item Type: Refine your search to only Report
open access

Accident Management & Risk-Based Compliance With 40 CFR 68 for Chemical Process Facilities

Description: A risk-based logic model is suggested as an appropriate basis for better predicting accident progression and ensuing source terms to the environment from process upset conditions in complex chemical process facilities. Under emergency conditions, decision-makers may use the Accident Progression Event Tree approach to identify the best countermeasure for minimizing deleterious consequences to receptor groups before the atmospheric release has initiated. It is concluded that the chemical process … more
Date: August 23, 1995
Creator: O`Kula, K. R.; Taylor, R. P., Jr. & Ashbaugh, S. G.
Item Type: Refine your search to only Article
open access

Analysis of volatile organic compounds in groundwater samples by gas chromatography-mass spectrometry

Description: The Savannah River Site contains approximately 1500 monitoring wells from which groundwater samples are collected. Many of these samples are sent off-site for various analyses, including the determination of trace volatile organic compounds (VOCs). This report describes accomplishments that have been made during the past year which will ultimately allow VOC analysis to be performed on-site using gas chromatography-mass spectrometry. Through the use of the on-site approach, it is expected that t… more
Date: August 23, 1995
Creator: Bernhardt, J.
Item Type: Refine your search to only Report
open access

Assistance to state underground injection control programs and the oil and gas industry with class 2 injection well data management and technology transfer. Final technical report

Description: The Underground Injection Practices Research Foundation (UIPRF) administered a grant project funded by the US Department of Energy relating to Class 2 injection well operations in various primacy and direct implementation states throughout the country. This effort provided substantial benefits to state regulatory agencies and oil and gas producing companies. It enhanced the protection of the environment through the protection of ground water resources and improved oil and gas production operati… more
Date: November 23, 1995
Creator: Paque, M. J.
Item Type: Refine your search to only Report
open access

Atomic scale simulations of arsenic ion implantation and annealing in silicon

Description: We present results of multiple-time-scale simulations of 5, 10 and 15 keV low temperature ion implantation of arsenic on silicon (100), followed by high temperature anneals. The simulations start with a molecular dynamics (MD) calculation of the primary state of damage after 10ps. The results are then coupled to a kinetic Monte Carlo (MC) simulation of bulk defect diffusion and clustering. Dose accumulation is achieved considering that at low temperatures the damage produced in the lattice is s… more
Date: January 23, 1995
Creator: Caturla, M.J.; Diaz de la Rubia, T. & Jaraiz, M.
Item Type: Refine your search to only Article
open access

Attachments for fire modeling for Building 221-T, T Plant canyon deck and railroad tunnel

Description: The purpose of this attachment is to provide historical information and documentation for Document No. WHC-SD-CP-ANAL-008 Rev 0, ``Fire Modeling for Building 221-T--T Plant Canyon Deck and Railroad Tunnel``, dated September 29, 1994. This data compilation contains the following: Resumes of the Technical Director, Senior Engineer and Junior Engineer; Review and Comment Record; Software Files; CFAST Input and Output Files; Calculation Control Sheets; and Estimating Sprinkler Actuation Time in the… more
Date: January 23, 1995
Creator: Oar, D. L.
Item Type: Refine your search to only Report
open access

Complexity of hierarchically and 1-dimensional periodically specified problems

Description: We study the complexity of various combinatorial and satisfiability problems when instances are specified using one of the following specifications: (1) the 1-dimensional finite periodic narrow specifications of Wanke and Ford et al. (2) the 1-dimensional finite periodic narrow specifications with explicit boundary conditions of Gale (3) the 2-way infinite1-dimensional narrow periodic specifications of Orlin et al. and (4) the hierarchical specifications of Lengauer et al. we obtain three gener… more
Date: August 23, 1995
Creator: Marathe, M. V.; Hunt, H. B., III; Stearns, R. E. & Radhakrishnan, V.
Item Type: Refine your search to only Article
open access

CONVEYOR SYSTEM SAFETY ANALYSIS

Description: The purpose and objective of this analysis is to systematically identify and evaluate hazards related to the Yucca Mountain Project Exploratory Studies Facility (ESF) surface and subsurface conveyor system (for a list of conveyor subsystems see section 3). This process is an integral part of the systems engineering process; whereby safety is considered during planning, design, testing, and construction. A largely qualitative approach was used since a radiological System Safety Analysis is not r… more
Date: June 23, 1995
Creator: Salem, M.
Item Type: Refine your search to only Report
open access

D0 Silicon Upgrade: Cryogenic Lines at Refrigerator : Thermal Contraction Analysis of Four Cryogenic Utility Lines for the D0 Upgrade

Description: The cryogenic lines GHE and LN2 contain two lines each, one for supply and the other for return. The tubing was stress analyzed per ASME code for pressure piping, standard ANSI/ASME B31.3. A commercial pipe stress analysis and design system by ALGOR{reg_sign} was used for the analysis along with the calculated maximum stress, 25,050 psi. They were all analyzed for combined pressure, thermal movement, and dead weight and all the stresses were below this allowable stress limit. There are sections… more
Date: June 23, 1995
Creator: Kuwazaki, Andrew
Item Type: Refine your search to only Report
open access

Data quality objectives for the initial fuel conditioning examinations

Description: The Data Quality Objectives (DQOs) were established for the response of the first group of fuel samples shipped from the K West Basin to the Hanford 327 Building hot cells for examinations to the proposed Path Forward conditioning process. Controlled temperature and atmosphere furnace testing testing will establish performance parameters using the conditioning process (drying, sludge drying, hydride decomposition passivation) proposed by the Independent Technical Assessment (ITA) Team as the ba… more
Date: May 23, 1995
Creator: Lawrence, L.A.
Item Type: Refine your search to only Report
open access

Design criteria tank farm storage and staging facility

Description: Tank Farms Operations must store/stage material and equipment until work packages are ready to work. Consumable materials are also required to be stored for routine and emergency work. Safety issues based on poor housekeeping and material deterioration due to weather damage has resulted from inadequate storage space. It has been determined that a storage building in close proximity to the Tank Farm work force would be cost effective. This document provides the design criteria for the design of … more
Date: January 23, 1995
Creator: Lott, D. T.
Item Type: Refine your search to only Report
open access

DESIGN PACKAGE 1E SYSTEM SAFETY ANALYSIS

Description: The purpose of this analysis is to systematically identify and evaluate hazards related to the Yucca Mountain Project Exploratory Studies Facility (ESF) Design Package 1E, Surface Facilities, (for a list of design items included in the package 1E system safety analysis see section 3). This process is an integral part of the systems engineering process; whereby safety is considered during planning, design, testing, and construction. A largely qualitative approach was used since a radiological Sy… more
Date: June 23, 1995
Creator: Salem, M.
Item Type: Refine your search to only Report
open access

Development of precipitated iron Fischer-Tropsch catalysts. Quarterly technical progress report, 1 January 1995--31 March 1995

Description: During the reporting period we completed synthesis of about 100 g of catalyst with nominal composition 100 Fe/3 Cu/4 K/16 SiO{sub 2} (S-3416-2), and of another batch (173 g) of the same catalyst (S-3416-3). Also, we synthesized two additional batches of catalyst with nominal composition 100 Fe/5 Cu/6 K/24 SiO{sub 2}, in the amounts of 240 g (S-5624-3) and 200 g (S-5624-4). These amounts are sufficient for all planned tests with these two catalysts for the entire duration of this contract. The s… more
Date: May 23, 1995
Creator: Bukur, D.B.; Lang, X. & Reddy, B.
Item Type: Refine your search to only Report
open access

Disposition of surplus fissile materials via immobilization

Description: In the Cold War aftermath, the US and Russia have agreed to large reductions in nuclear weapons. To aid in the selection of long-term management options, the USDOE has undertaken a multifaceted study to select options for storage and disposition of surplus plutonium (Pu). One disposition alternative being considered is immobilization. Immobilization is a process in which surplus Pu would be embedded in a suitable material to produce an appropriate form for ultimate disposal. To arrive at an app… more
Date: July 23, 1995
Creator: Gray, L. W.; Kan, T.; Sutcliffe, W. G.; McKibben, J. M. & Danker, W.
Item Type: Refine your search to only Article
open access

DOT-7A packaging test procedure

Description: This test procedure documents the steps involved with performance testing of Department of Transportation Specification 7A (DOT-7A) Type A packages. It includes description of the performance tests, the personnel involved, appropriate safety considerations, and the procedures to be followed while performing the tests. Westinghouse Hanford Company (WHC) is conducting the evaluation and testing discussed herein for the Department of Energy-Headquarters, Division of Quality Verification and Transp… more
Date: January 23, 1995
Creator: Kelly, D. L.
Item Type: Refine your search to only Report
open access

DOT-7A Type A packaging design guide

Description: The purpose of this Design Guide is to provide instruction for designing a U.S. Department of Transportation Specification 7A (DOT-7A) Type A packaging. Another purpose for this Design Guide is to support the evaluation and testing activities that are performed on new designs by a U.S. Department of Energy (DOE) test facility. This evaluation and testing program is called the DOT-7A Program. When an applicant has determined that a DOT-7A packaging is needed and not commercially available, a des… more
Date: January 23, 1995
Creator: Kelly, D. L.
Item Type: Refine your search to only Report
open access

DSI3D - RCS user manual

Description: The DSI3D-RCS code is designed to numerically evaluate radar cross sections on complex objects by solving Maxwell`s curl equations in the time-domain and in three space dimensions. The code has been designed to run on the new parallel processing computers as well as on conventional serial computers. The DSI3D-RCS code is unique for the following reasons: Allows the use of unstructured non-orthogonal grids, allows a variety of cell or element types, reduces to be the Finite Difference Time Domai… more
Date: August 23, 1995
Creator: Madsen, N.; Steich, D. & Cook, G.
Item Type: Refine your search to only Report
open access

Energetics and kinetics of anaerobic aromatic and fatty acid degradation. Progress report, March 1992--June 1995

Description: Factors affecting the rate and extent of benzoate degradation by anaerobic syntrophic consortia were studied. Cocultures of a syntrophic benzoate degrader, strain SB, with a hydrogen/formate-using sulfate reducer degraded benzoate to a threshold that depended on the amount of substrate and acetate present. The benzoate threshold was not a function of the inhibition of benzoate degradation capacity by acetate or the toxicity of the undissociated form of acetate. Rather, a critical or minimal Gib… more
Date: June 23, 1995
Creator: M.J., McInerney
Item Type: Refine your search to only Report
open access

EUV/soft x-ray spectra for low B neutron stars

Description: Recent ROSAT and EUVE detections of spin-powered neutron stars suggest that many emit ``thermal`` radiation, peaking in the EUV/soft X-ray band. These data constrain the neutron stars` thermal history, but interpretation requires comparison with model atmosphere computations, since emergent spectra depend strongly on the surface composition and magnetic field. As recent opacity computations show substantial change to absorption cross sections at neutron star photospheric conditions, we report h… more
Date: May 23, 1995
Creator: Romani, R. W.; Rajagopal, M.; Rogers, F. J. & Iglesias, C. A.
Item Type: Refine your search to only Article
open access

Examination of glass-silicon and glass-glass bonding techniques for microfluidic systems

Description: We report here on the results of experiments concerning particular bonding processes potentially useful for ultimate miniaturization of microfluidic systems. Direct anodic bonding of continuous thin pyrex glass of 250 {mu}m thickness to silicon substrates gives multiple, large voids in the glass. Etchback of thick glass of 1200 {mu}m thickness bonded to silicon substrates gives thin continuous glass layers of 189 {mu}m thickness without voids over areas of 5 cm {times} 12 cm. Glass was also suc… more
Date: October 23, 1995
Creator: Raley, N. F.; Davidson, J. C. & Balch, J. W.
Item Type: Refine your search to only Article
Back to Top of Screen