Technical findings from Sandia`s intrabuilding recabling project (open access)

Technical findings from Sandia`s intrabuilding recabling project

The US and other leading nations are at the forefront of a global trend to implement both national and international enterprise networks via information highways. New or upgraded cabling infrastructures are essential to support these activities. Professionals in the telecommunications industry are keenly aware of the challenges presented by such cabling upgrades. Desktop connectivity must be established before quantum leaps in information flow, as suggested by new technologies and global concepts. Some businesses with campus-type facilities have undertaken this formidable challenge. Universities and other higher-level learning institutions, corporate research facilities, independent and government-funded laboratories, financial institutions, medical facilities, and unique suburban housing test sites have risen to this challenge. Sandia National Laboratories is one such organization. This report presents the lessons learned from this project and gives 13 specific recommendations for manufacturers, buyers, and installers.
Date: February 1, 1996
Creator: Adams, R.L. & Eberhart, J.A.
System: The UNT Digital Library
Investigation of syngas interaction in alcohol synthesis catalysts. Quartery technical progress report, July 1, 1995--September 31, 1995 (open access)

Investigation of syngas interaction in alcohol synthesis catalysts. Quartery technical progress report, July 1, 1995--September 31, 1995

This report presents the work done on {open_quotes}Investigation of Syngas Interaction in Alcohol Synthesis Catalysts{close_quotes} during the last three months. In this report the results of the work done on the effect of CO adsorption on the magnetic character of cobalt in the Cu/Co/Cr catalysts is discussed.
Date: February 1, 1996
Creator: Akundi, M. A.
System: The UNT Digital Library
Westinghouse GOCO conduct of casualty drills (open access)

Westinghouse GOCO conduct of casualty drills

Purpose of this document is to provide Westinghouse Government Owned Contractor Operated (GOCO) Facilities with information that can be used to implement or improve drill programs. Elements of this guide are highly recommended for use when implementing a new drill program or when assessing an existing program. Casualty drills focus on response to abnormal conditions presenting a hazard to personnel, environment, or equipment; they are distinct from Emergency Response Exercises in which the training emphasis is on site, field office, and emergency management team interaction. The DOE documents which require team training and conducting drills in nuclear facilities and should be used as guidance in non-nuclear facilities are: DOE 5480.19 (Chapter 1 of Attachment I) and DOE 5480.20 (Chapter 1, paragraphs 7 a. and d. of continuing training). Casualty drills should be an integral part of the qualification and training program at every DOE facility.
Date: February 1, 1996
Creator: Ames, C.P.
System: The UNT Digital Library
Amorphous silicon research. Annual subcontract report, October 1, 1994--September 30, 1995 (open access)

Amorphous silicon research. Annual subcontract report, October 1, 1994--September 30, 1995

The major effort in this program is to develop cost-effective processes which satisfy efficiency, yield, and material usage criteria for mass production of amorphous silicon-based multijunction modules. New and improved processes were developed for the component cells and a more robust rear contact was developed for better long term stability.
Date: February 1, 1996
Creator: Arya, R.R.; Bennett, M. & Bradley, D.
System: The UNT Digital Library
Productivity and injectivity of horizontal wells. Quarterly technical progress report, October 1, 1995--December 31, 1995 (open access)

Productivity and injectivity of horizontal wells. Quarterly technical progress report, October 1, 1995--December 31, 1995

As the length of a horizontal well is increased, its contact with the reservoir increases. But at the same time, the resistance to the flow in the well also increases which has a direct negative effect on the productivity of the well. The overall performance of horizontal wells depends on the balance of these two opposing factors. No reliable tools are currently available that account for both these factors in the evaluation of horizontal well performance. An analytical well-model is developed which can quantify the effects of pressure loss in the well on the overall well performance. A sensitivity study is conducted on the effect of various reservoir, fluid and well parameters on well performance.
Date: February 1, 1996
Creator: Aziz, K.
System: The UNT Digital Library
Revised 60-day safety screening and ferrocyanide results for tank 241-BY-108, rotary samples core 98 and core 104 (open access)

Revised 60-day safety screening and ferrocyanide results for tank 241-BY-108, rotary samples core 98 and core 104

Revised Report for 60-Day Safety Screening Results, Rotary Samples Core 98 and Core 104, Safety Screening and Ferrocyanide Results.
Date: February 1, 1996
Creator: Baldwin, J.H.
System: The UNT Digital Library
Observation of a narrow structure in the pp elastic scattering at T{sub kin} = 2.11 GeV (open access)

Observation of a narrow structure in the pp elastic scattering at T{sub kin} = 2.11 GeV

The angular dependences of the pp elastic scattering analyzing power, spin correlation, depolarization transfer were measured in the angular range from 60{degrees} to 97{degrees} CM at 14 energies between 1.96 and 2 .23 GeV. At fixed angles two maxima were observed in the analyzing Power energy dependence, both below and above 2.11 GeV. Furthermore a rapid decrease Of the spin correlation Parameter at 90{degrees} CM occurs around this energy. The observables allow determination of the absolute values of three nonvanishing pp amplitudes at 90{degrees}. The energy dependence of the spin-single amplitude shows a shoulder centered at 2.11 GeV, while the spin-triplet amplitudes are decreasing functions of energy snowing no evidence of structure. All experimental data are listed in tables and their energy dependences are shown in figures.
Date: February 1, 1996
Creator: Ball, J.; Chamouard, P.A. & Combet, M.
System: The UNT Digital Library
Recent results in p{anti p} collisions at {radical}s = 1.8 TeV from the CDF Collaboration at the Fermilab Tevatron collider (open access)

Recent results in p{anti p} collisions at {radical}s = 1.8 TeV from the CDF Collaboration at the Fermilab Tevatron collider

During the 1992--95 Tevatron collider Run 1, the Collider Detector at Fermilab (CDF) collected a data sample of {anti p}p collisions at a center of mass energy of 1.8 TeV with an integrated luminosity of > 100 pb{sup {minus}1}. This was split into two separate data-taking runs: Run 1A ({approximately} 20 pb{sup {minus}1}) and the present Run 1B (> 80 pb{sup {minus}1}). Data-taking is planned to continue into 1996 and a total sample of about 120 pb{sup {minus}1} is expected. This data sample, in combination with improvements to the data acquisition system, the muon coverage, and the installation of the CDF SVX silicon vertex detector, has allowed many new effects to be studied. This paper reports results on heavy quark (charm, bottom and top) physics, electroweak phenomena, quantum chromodynamics, and searches for new particles beyond the Standard Model.
Date: February 1, 1996
Creator: Barnett, B. A.
System: The UNT Digital Library
Atomic hydrogen reaction rates in aqueous solution via free-induction decay attenuation (open access)

Atomic hydrogen reaction rates in aqueous solution via free-induction decay attenuation

This new pulsed EPR method is providing data on H-atom reaction rates in water, which are important in radiation chemistry of aqueous solutions, eg, corrosion in reactor cooling systems, H2 production in high-level radioactive waste, and spread of radioactive iodine following the Chernobyl accident. This AECL-Argonne collaborative effort was undertaken to investigate fundamental aqueous H-atom chemistry for the purpose of developing predictive models of iodine transport that will be used by the nuclear power industry to enhance plant safety. Reactions of (H){sub aq} with many representative organic and inorganicmolecules have already been investigated. Radiolysis of aqueous solns with 3-MeV electrons produces H atoms in high yield; in the free induction decay method, a powerful 30 ns microwave pulse is applied immediately following pulse radiolysis, creating a phase coherence of the H-atom electron spins that is detected in the pulsed EPR spectrometer as a damped cosine free induction decay (FID). Natural decay time of the spin coherence is many microseconds, but if a reaction partner for the H atoms is introduced, the FID becomes shorter, revealing the H reaction rate. Results of H atom reaction with benzene, methanol, periodate and periodic acid are discussed briefly.
Date: February 1, 1996
Creator: Bartels, D.M.
System: The UNT Digital Library
Swing-free transport of suspended loads. Summer research report (open access)

Swing-free transport of suspended loads. Summer research report

Transportation of large objects using traditional bridge crane can induce pendulum motion (swing) of the object. In environments such as factory the energy contained in the swinging mass can be large and therefore attempts to move the mass onto target while still swinging can cause considerable damage. Oscillations must be damped or allowed to decay before the next process can take place. Stopping the swing can be accomplished by moving the bridge in a manner to counteract the swing which sometimes can be done by skilled operator, or by waiting for the swing to damp sufficiently that the object can be moved to the target without risk of damage. One of the methods that can be utilized for oscillation suppression is input preshaping. The validity of this method depends on the exact knowledge of the system dynamics. This method can be modified to provide some degrees of robustness with respect to unknown dynamics but at the cost of the speed of transient response. This report describes investigations on the development of a controller to dampen the oscillations.
Date: February 1, 1996
Creator: Basher, A. M. H.
System: The UNT Digital Library
Summary Report California Department of Forestry and Fire Protection Evaluation of Full-Face Air-Purifying Respirators for Wildland Fire Fighting Use (open access)

Summary Report California Department of Forestry and Fire Protection Evaluation of Full-Face Air-Purifying Respirators for Wildland Fire Fighting Use

Wildland fire suppression personnel employed by the CDF do not currently have the equipment to protect themselves from the short-term acute affects of smoke from wildland fires. In addition, no regulations exist that specify appropriate respiratory protection and the current air-purifying respirator technology and carbon monoxide monitoring has not been adapted to fit wildland fire suppression requirements. This three-year limited study evaluated the ability of wildland fire fighters to perform their normal job function while wearing full-face air-purifying respirators. In the first two years of this study we designed, developed and field tested a prototype ``smart`` air-purifying respirator which incorporated a real-time carbon monoxide monitor into a commercial full-face respirator.` Data on carbon monoxide exposure while fighting wildland fires was collected. During the third year of this study we evaluated eight different commercially available full-face air-purifying respirators equipped with a variety of cartridges. Apparatus to aid the fire fighter in carrying the respirator and carbon monoxide personal monitor was designed and fabricated. A smoke exposure test method was developed and a laboratory study on the penetration of smoke through respirator cartridges was conducted.
Date: February 1, 1996
Creator: Beason, Donald G.; Johnson, James S.; Foote, Kenneth L. & Weaver, William A.
System: The UNT Digital Library
The Discovery of Fullerenes in the 1.85 Billion-Year-Old Sudbury Meteorite Crater (open access)

The Discovery of Fullerenes in the 1.85 Billion-Year-Old Sudbury Meteorite Crater

Fullerenes (C{sub 60}, C{sub 70}) have been identified by laser time-of-flight and electron-ionization mass spectroscopy in rock samples (black tuff in the Onaping formation) from the crater. They were likely synthesized within the impact plume from carbon contained in the meteorite. The isotopic ratios suggest {sup 13}C enrichment. They are associated with sulfur which may have protected them. This is the largest known deposit of naturally occurring fullerenes.
Date: February 1, 1996
Creator: Becker, Luann; Bada, Jeffrey L.; Winans, Randall E.; Hunt, Jerry E.; Bunch, Ted E. & French, Bevan M.
System: The UNT Digital Library
Advanced byproduct recovery: Direct catalytic reduction of SO{sub 2} to elemental sulfur. First quarterly technical progress report, [October--December 1995] (open access)

Advanced byproduct recovery: Direct catalytic reduction of SO{sub 2} to elemental sulfur. First quarterly technical progress report, [October--December 1995]

The team of Arthur D. Little, Tufts University and Engelhard Corporation will be conducting Phase I of a four and a half year, two-phase effort to develop and scale-up an advanced byproduct recovery technology that is a direct, single-stage, catalytic process for converting sulfur dioxide to elemental sulfur. this catalytic process reduces SO{sub 2} over a fluorite-type oxide (such as ceria or zirconia). The catalytic activity can be significantly promoted by active transition metals, such as copper. More than 95% elemental sulfur yield, corresponding to almost complete sulfur dioxide conversion, was obtained over a Cu-Ce-O oxide catalyst as part of an ongoing DOE-sponsored University Coal Research Program. This type of mixed metal oxide catalyst has stable activity, high selectivity for sulfur production, and is resistant to water and carbon dioxide poisoning. Tests with CO and CH{sub 4} reducing gases indicates that the catalyst has the potential for flexibility with regard to the composition of the reducing gas, making it attractive for utility use. the performance of the catalyst is consistently good over a range of SO{sub 2} inlet concentration (0.1 to 10%) indicating its flexibility in treating SO{sub 2} tail gases as well as high concentration streams.
Date: February 1, 1996
Creator: Benedek, K. & Flytzani-Stephanopoulos, M.
System: The UNT Digital Library
Evaluation and analysis of the performance of masonary infills during the Northridge earthquake (open access)

Evaluation and analysis of the performance of masonary infills during the Northridge earthquake

Observations were made of the behavior of masonry infills in structural frames during the Northridge earthquake, and an analytical technique was developed for analyzing infilled frame structures. Infills near the epicenter suffered significant damage, but in several cases contributed to the seismic resistance and life safety performance. Older infill buildings in downtown Los Angeles experienced intensity of shaking similar to that expected in central/eastern United States earthquakes. The infills experienced some cracking, but otherwise complemented the lateral resistance of the weak building frames. This suggests infill frame buildings in moderate seismic zones may provide at least life safety functions without the need for expensive retrofit. A developed analytical technique was used to analyze two buildings for which the observed behavior and records from the Northridge earthquake were available. The analytical technique was based on using a piecewise linear equivalent strut for the infill. Parameters for the strut were obtained by examining the results of a wide variety of experimental infill tests. The strut method is easy to incorporate in standard linear analyses, and converges quite rapidly. The strut method was applied to two structures that had records from the Northridge earthquake. Very favorable comparisons between the analytical method and observed …
Date: February 1, 1996
Creator: Bennett, R. M.; Fischer, W. L.; Flanagan, R. D. & Tenbus, M. A.
System: The UNT Digital Library
Advanced separation technology for flue gas cleanup. Quarterly technical report No. 15 (open access)

Advanced separation technology for flue gas cleanup. Quarterly technical report No. 15

The objective of this work is to develop a novel system for regenerable SO{sub 2} and NO{sub x} scrubbing of flue gas that focuses on (1) a novel method for regeneration of spent SO{sub 2} scrubbing liquor and (2) novel chemistry for reversible absorption of NO{sub x}. In addition, high efficiency hollow fiber contactors (HFC) are proposed as the devices for scrubbing the SO{sub 2} and NO{sub x} from the flue gas. The system will be designed to remove more than 95% of the SO{sub x} and more than 75% of the NO{sub x} from flue gases typical of pulverized coal-fired power plants at a cost that is at least 20% less than combined wet limestone scrubbing of SO{sub x} and selective catalytic reduction of NO{sub x}. In addition, the process will make only marketable byproducts, if any (no waste streams). Our approach is to reduce the capital cost by using high efficiency hollow fiber devices for absorbing and desorbing the SO{sub 2} and NO{sub x}. We will also introduce new process chemistry to minimize traditionally well-known problems with SO{sub 2} and NO{sub x} absorption and desorption. For example, we will extract the SO{sub 2} from the aqueous scrubbing liquor …
Date: February 1, 1996
Creator: Bhown, A. S.; Pakala, N.; Riggs, T. & Tagg, T.
System: The UNT Digital Library
Environmental surveillance master sampling schedule (open access)

Environmental surveillance master sampling schedule

Environmental surveillance of the Hanford Site and surrounding areas is conducted by the Pacific Northwest National Laboratory (PNNL) for the US Department of Energy (DOE). This document contains the planned 1996 schedules for routine collection of samples for the Surface Environmental Surveillance Project (SESP), Drinking Water Project, and Ground-Water Surveillance Project.
Date: February 1, 1996
Creator: Bisping, L.E.
System: The UNT Digital Library
Final design review report for K Basin Dose Reduction Project Clean and Coat Task (open access)

Final design review report for K Basin Dose Reduction Project Clean and Coat Task

The strategy for reducing radiation dose originating from radionuclides absorbed in the concrete is to raise the pool water level to provide additional shielding. The concrete walls need to be coated to prevent future radionuclide absorption into the walls. This report documents a final design review of equipment to clean and coat basin walls. The review concluded that the design presented was acceptable for release for fabrication.
Date: February 1, 1996
Creator: Blackburn, L.D.
System: The UNT Digital Library
Rational polynomials (open access)

Rational polynomials

Numerical analysis is an important part of Engineering. Frequently relationships are not adequately understood, or too complicated to be represented by theoretical formulae. Instead, empirical approximations based on observed relationships can be used for simple fast and accurate evaluations. Historically, storage of data has been a large constraint on approximately methods. So the challenge is to find a sufficiently accurate representation of data which is valid over as large a range as possible while requiring the storage of only a few numerical values. Polynomials, popular as approximation functions because of their simplicity, can be used to represent simple data. Equation 1.1 shows a simple 3rd order polynomial approximation. However, just increasing the order and number of terms included in a polynomial approximation does not improve the overall result. Although the function may fit exactly to observed data, between these points it is likely that the approximation is increasingly less smooth and probably inadequate. An alternative to adding further terms to the approximation is to make the approximation rational. Equation 1.2 shows a rational polynomial, 3rd order in the numerator and denominator. A rational polynomial approximation allows poles and this can greatly enhance an approximation. In Sections 2 and 3 two …
Date: February 1, 1996
Creator: Blackett, S. A.
System: The UNT Digital Library
Characterization of a 1,4-{beta}-D-glucan synthase from Dictyostelium. Final technical report (open access)

Characterization of a 1,4-{beta}-D-glucan synthase from Dictyostelium. Final technical report

The study of cellulose biosynthesis has a long history of frustrations, false leads, and setbacks. The authors have been able to proceed further than others who have studied eukaryotic cellulose synthesis because of the high level of enzyme activity in crude membrane preparations from developing Dictyostelium cells. This has made possible experiments to study factors that influence the activity, to determine cellular localization, and to study the development regulation of the enzyme activity. In higher plants, the challenge is still to obtain highly active membrane preparations. However, they have not been able to move beyond the level of crude membranes. The high starting activity of Dictyostelium membranes gave hope that cellulose synthase activity could be purified, allowing the identification of the polypeptides involved in cellulose synthesis. The first step in the purification of a membrane-associated activity is the solubilization of the activity; this they have not yet been able to do. They have applied some of their methods developed in the study of the Dictyostelium glucan synthase to preparation of plant membranes to see if they can obtain any in vitro activity. For instance, the disruption medium, disruption methods, and assay conditions used in Dictyostelium were used to prepare plant …
Date: February 1, 1996
Creator: Blanton, R. L.
System: The UNT Digital Library
Float zone silicon sheet growth. Quarterly report number 9, October 1--December 31, 1995 (open access)

Float zone silicon sheet growth. Quarterly report number 9, October 1--December 31, 1995

This report discusses progress made in each of the following tasks: (1) heat pipe construction; (2) heat pipe heater and heat extraction system; (3) optical temperature monitoring system; (4) replenishment source development; (5) RF electrode assembly; (6) solid-liquid interface monitors; (7) ribbon seed preparation; and (8) overall systems assembly.
Date: February 1, 1996
Creator: Bleil, C.E.
System: The UNT Digital Library
Aging management guideline for commercial nuclear power plants - tanks and pools (open access)

Aging management guideline for commercial nuclear power plants - tanks and pools

Continued operation of nuclear power plants for periods that extend beyond their original 40-year license period is a desirable option for many U.S. utilities. U.S. Nuclear Regulatory Commission (NRC) approval of operating license renewals is necessary before continued operation becomes a reality. Effective aging management for plant components is important to reliability and safety, regardless of current plant age or extended life expectations. However, the NRC requires that aging evaluations be performed and the effectiveness of aging management programs be demonstrated for components considered within the scope of license renewal before granting approval for operation beyond 40 years. Both the NRC and the utility want assurance that plant components will be highly reliable during both the current license term and throughout the extended operating period. In addition, effective aging management must be demonstrated to support Maintenance Rule (10 CFR 50.65) activities.
Date: February 1, 1996
Creator: Blocker, E.; Smith, S.; Philpot, L. & Conley, J.
System: The UNT Digital Library
Treatability study for removal of leachable mercury in crushed fluorescent lamps (open access)

Treatability study for removal of leachable mercury in crushed fluorescent lamps

Nonserviceable fluorescent lamps removed from radiological control areas at the Oak Ridge Department of Energy facilities have been crushed and are currently managed as mixed waste (hazardous and radiologically contaminated). We present proposed treatment flowsheets and supporting treatability study data for conditioning this solid waste residue so that it can qualify for disposal in a sanitary landfill. Mercury in spent fluorescent lamps occurs primarily as condensate on high-surface-area phosphor material. It can be solubilized with excess oxidants (e.g., hypochlorite solution) and stabilized by complexation with halide ions. Soluble mercury in dechlorinated saline solution is effectively removed by cementation with zero-valent iron in the form of steel wool. In packed column dynamic flow testing, soluble mercury was reduced to mercury metal and insoluble calomel, loading > 1.2 g of mercury per grain of steel wool before an appreciable breakthrough of soluble mercury in the effluent.
Date: February 1, 1996
Creator: Bostick, W. D.; Beck, D. E. & Bowser, K. T.
System: The UNT Digital Library
Seasonal characteristics of precipitation over the United States in AMIP simulations (open access)

Seasonal characteristics of precipitation over the United States in AMIP simulations

The monthly mean precipitation patterns of the Atmospheric Model Intercomparison Project (AMIP) decadal simulations over the US and adjoining oceans are intercompared. A simple harmonic analysis of the 12 month seasonal mean precipitation values and a principal component (PC) analysis of the 120 monthly values were carried out. Emphasis is placed on the basic seasonal variation for three subregions, the Eastern US, Central US and West Coast US.
Date: February 1, 1996
Creator: Boyle, J.S.
System: The UNT Digital Library
Engineering evaluation of alternatives: Managing the assumed leak from single-shell Tank 241-T-101 (open access)

Engineering evaluation of alternatives: Managing the assumed leak from single-shell Tank 241-T-101

At mid-year 1992, the liquid level gage for Tank 241-T-101 indicated that 6,000 to 9,000 gal had leaked. Because of the liquid level anomaly, Tank 241-T-101 was declared an assumed leaker on October 4, 1992. SSTs liquid level gages have been historically unreliable. False readings can occur because of instrument failures, floating salt cake, and salt encrustation. Gages frequently self-correct and tanks show no indication of leak. Tank levels cannot be visually inspected and verified because of high radiation fields. The gage in Tank 241-T-101 has largely corrected itself since the mid-year 1992 reading. Therefore, doubt exists that a leak has occurred, or that the magnitude of the leak poses any immediate environmental threat. While reluctance exists to use valuable DST space unnecessarily, there is a large safety and economic incentive to prevent or mitigate release of tank liquid waste into the surrounding environment. During the assessment of the significance of the Tank 241-T-101 liquid level gage readings, Washington State Department of Ecology determined that Westinghouse Hanford Company was not in compliance with regulatory requirements, and directed transfer of the Tank 241-T-101 liquid contents into a DST. Meanwhile, DOE directed WHC to examine reasonable alternatives/options for safe interim management of …
Date: February 1, 1996
Creator: Brevick, C. H. & Jenkins, C.
System: The UNT Digital Library