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Proceedings of the 1998 Photovoltaic Performance and Reliability Workshop; Cocoa Beach, Florida; November 3-5, 1998

Description: This proceedings is the compilation of all papers presented at the 11th PV Performance and Reliability Workshop held at the Doubletree Hotel in Cocoa Beach, Florida, on November 3-5, 1998. The workshop was hosted by the Florida Solar Energy Center. This year's workshop included presentations from 29 speakers and had 110 attendees.
Date: December 17, 1998
Creator: Kroposki, B.
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
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Structure and formation mechanism of the transfermium isotope {sup 254}No.

Description: The ground-state band of the Z=102 isotope {sup 254}No has been identified up to spin 14, indicating that the nucleus is deformed. The deduced quadruple deformation, {beta} = 0.27, is in agreement with theoretical predictions. These observations confirm that the shell-correction energy responsible for the stability of transfermium nuclei is partly derived from deformation. The survival of {sup 254}No up to spin 14 means that its fission barrier persists at least up to that spin.
Date: December 17, 1998
Creator: Reiter, P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Non-Destructive Evaluation of Wind Turbine Blades Using an Infrared Camera

Description: The use of a digital infrared as a non-destructive evaluation thermography camera (NDE) tool was ex- plored in two separate wind turbine blade fatigue tests. The fwst test was a fatigue test of part of a 13.1 meter wood-epoxy-composite blade. The second test was on a 4.25 meter pultruded fiber glass blade section driven at several mechanical resonant frequencies. The digital infrared camera can produce images of either the static temperature distribution on the surface of the specimen, or the d… more
Date: December 17, 1998
Creator: Beattie, A. G. & Rumsey, M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Meteorological Annual Report for 1997

Description: An analysis of meteorological data collected at the Savannah River Site (SRS) in 1997 shows that overall weather conditions for the year were relatively cool and wet. The average temperature for 1997 was 63.7 degree F which is about 1 degree F below the annual average for the 30-year period 1968-97. June 1997 had the lowest average temperature of any June in the 34 years for which temperature records are available at SRS ; moreover, the average temperature for the summer months (June, July, and… more
Date: December 17, 1998
Creator: Hunter, C.H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Characterization of Reillex{trademark} HPQ Polymer

Description: This work examined the thermal stability of Reillex(tm) HPQ resin as part of a comprehensive plan to qualify that material for use in HB-line. No low temperature exothermic reactions or volatile organic compounds occurred in various lots of as-received, chloride form Reillex(tm) HPQ polymer or the nitrate form polymer. The studies do not suggest any restrictions on purchase criteria for the resin nor any changes in planned use. Previously observed low temperature exotherms resulted from reactio… more
Date: December 17, 1998
Creator: Walker, D. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Computer Modeling of a Glass Stream Departing from a Pour Spout Knife Edge

Description: The subject of this paper is the hydrodynamics of pouring molten glass. This involves a class of free surface flows that changes shape from flat film flow on a wall to a round cylindrical jet in the free fall region, which as not previously received much attention.
Date: December 17, 1998
Creator: Guerrero, H. N. & Naseri-Neshat, H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Selection of Models for Ingestion Pathway and Relocation Radii Determination

Description: The distance at which intermediate phase protective actions (such as food interdiction and relocation) may be needed following postulated accidents at three Savannah River Site nonreactor nuclear facilities will be determined by modeling. The criteria used to select dispersion/deposition models are presented. Several models were considered, including ARAC, MACCS, HOTSPOT, WINDS (coupled with PUFF-PLUME), and UFOTRI. Although ARAC and WINDS are expected to provide more accurate modeling of atmos… more
Date: December 17, 1998
Creator: Blanchard, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Validation of the SEPHIS Program for the Modeling of the HM Process

Description: The SEPHIS computer program is currently being used to evaluate the effect of all process variables on the criticality safety of the HM 1st Uranium Cycle process in H Canyon. The objective of its use has three main purposes. (1) To provide a better technical basis for those process variables that do not have any realistic effect on the criticality safety of the process. (2) To qualitatively study those conditions that have been previously recognized to affect the nuclear safety of the process o… more
Date: December 17, 1998
Creator: Kyser, E.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A Three-Dimensional Optical Photonic Crystal

Description: The search for a photonic crystal to confine optical waves in all three dimensions (3D) has proven to be a formidable task. It evolves from an early theoretical suggestion [1,2], a brief skepticism [3-5] and triumph in developing the mm-wave [6-8] and infrared 3D photonic crystals [9]. Yet, the challenge remains, as the ultimate goal for optoelectronic applications is to realize a 3D crystal at X=1.5 pm communication wavelengths. Operating at visible and near infrared wavelengths, X=1-2 pm, a p… more
Date: December 17, 1998
Creator: Fleming, J.G. & Lin, S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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CHI: A General Agent Communication Framework

Description: We have completed and exercised a communication framework called CHI (CLOS to HTML Interface) by which agents can communicate with humans. CHI follows HTTP (HyperText Transfer Protocol) and produces HTML (HyperText Markup Language) for use by WWW (World-Wide Web) browsers. CHI enables the rapid and dynamic construction of interface mechanisms. The essence of CHI is automatic registration of dynamically generated interface elements to named objects in the agent's internal environment. The agent … more
Date: December 17, 1998
Creator: Goldsmith, S.Y.; Phillips, L.R. & Spires, S.V.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Basement Surface Faulting and Topography for Savannah River Site and Vicinity

Description: This report integrates the data from more than 60 basement borings and over 100 miles of seismic reflection profiling acquired on the Savannah River Site to map the topography of the basement (unweathered rock) surface and faulting recorded on this surface.
Date: December 17, 1998
Creator: Cumbest, R.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Application of Damage Detection Techniques Using Wind Turbine Modal Data

Description: As any structure ages, its structural characteristics will also change. The goal of this work was to determine if modal response data fkom a wind turbine could be used in the detection of damage. The input stimuli to the wind turbine were from traditional modal hammer input and natural wind excitation. The structural response data was acquired using accelerometers mounted on the rotor of a parked and undamaged horizontal-axis wind turbine. The bolts at the root of one of the three blades were t… more
Date: December 17, 1998
Creator: Gross, E.; Rumsey, M.; Simmermacher, T. & Zadoks, R.I.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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On Constraints in Assembly Planning

Description: Constraints on assembly plans vary depending on product, assembly facility, assembly volume, and many other factors. Assembly costs and other measures to optimize vary just as widely. To be effective, computer-aided assembly planning systems must allow users to express the plan selection criteria that appIy to their products and production environments. We begin this article by surveying the types of user criteria, both constraints and quality measures, that have been accepted by assembly plann… more
Date: December 17, 1998
Creator: Calton, T. L.; Jones, R. E. & Wilson, R. H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Role of Microbes as Biocolloids in the Transport of Actinides from a Deep Underground Radioactive Waste Repository

Description: We investigated the interaction of dissolved actinides Th, U, Np Zgpu, and Am, with a pure and a mixed culture of halophilic bactezia isolated from the Waste Isolation H.Iot Plant repository under anaerobic conditions to evaluate their potentiaI transport as biocolloids from the waste site. The sizes of the bacterial cells studied ranged from ().54 x 0.48 pm to 7.7 x 0.67pm Using sequential mimofiltration, we determined the ~~ation of actinides with fi-ee-living (mobile) bacterial cells suspend… more
Date: December 17, 1998
Creator: Dodge, C. J.; Dunn, M.; Francis, A. J.; Gillow, J. B.; Mantione, K.; Pansoy-Hjelvik, M. E. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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2-D Finite Element Cable and Box IEMP Analysis

Description: A 2-D finite element code has been developed for the solution of arbitrary geometry cable SGEMP and box IEMP problems. The quasi- static electric field equations with radiation- induced charge deposition and radiation-induced conductivity y are numerically solved on a triangular mesh. Multiple regions of different dielectric materials and multiple conductors are permitted.
Date: December 17, 1998
Creator: Scivner, G.J. & Turner, C.D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Tools for Inspecting and Sampling Waste in Underground Radioactive Storage Tanks with Small Access Riser Openings

Description: Underground storage tanks with 2 inches to 3 inches diameter access ports at the Department of Energy's Savannah River Site have been used to store radioactive solvents and sludge. In order to close these tanks, the contents of the tanks need to first be quantified in terms of volume and chemical and radioactive characteristics. To provide information on the volume of waste contained within the tanks, a small remote inspection system was needed. This inspection system was designed to provide li… more
Date: December 17, 1998
Creator: Nance, T.A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Effect of Inert Gas Additive Species on Cl(2) High Density Plasma Etching of Compound Semiconductors: Part II. InP, InSb, InGaP and InGaAs

Description: The effects of the additive noble gases He, Ar and Xe on chlorine-based Inductively Coupled Plasma etching of InP, InSb, InGaP and InGaAs were studied as a function of source power, chuck power and discharge composition. The etch rates of all materials with C12/He and C12/Xe are greater than with C12/Ar. Etch rates in excess of 4.8 pndmin for InP and InSb with C12/He or C12/Xe, 0.9 pndmin for InGaP with C12/Xe, and 3.8 prdmin for InGaAs with Clz/Xe were obtained at 750 W ICP power, 250 W rf pow… more
Date: December 17, 1998
Creator: Abernathy, C.R.; Cho, H.; Hahn, Y.B.; Hays, D.C.; Jung, K.B.; Pearton, S.J. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Burn Depth Estimation Using Thermal Excitation and Imaging

Description: Accurate estimation of the depth of partial-thickness burns and the early prediction of a need for surgical intervention are difficult. A non-invasive technique utilizing the difference in thermal relaxation time between burned and normal skin may be useful in this regard. In practice, a thermal camera would record the skin's response to heating or cooling by a small amount-roughly 5{degrees} Celsius for a short duration. The thermal stimulus would be provided by a heat lamp, hot or cold air, o… more
Date: December 17, 1998
Creator: Dickey, F.M.; Holswade, S.C. & Yee, M.L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Uncertainty and Sensitivity Analysis in Performance Assessment for the Waste Isolation Pilot Plant

Description: The Waste Isolation Pilot Plant (WIPP) is under development by the U.S. Department of Energy (DOE) for the geologic (deep underground) disposal of transuranic (TRU) waste. This development has been supported by a sequence of performance assessments (PAs) carried out by Sandla National Laboratories (SNL) to assess what is known about the WIPP and to provide .tidance for future DOE research and development activities. Uncertainty and sensitivity analysis procedures based on Latin hypercube sampli… more
Date: December 17, 1998
Creator: Helton, J. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Microstructure of GaN Grown on (111) Si by MOCVD

Description: Gallium nitride was grown on (111) Si by MOCVD by depositing an AIN buffer at 108O"C and then GaN at 1060 {degrees}C. The 2.2pm layer cracked along {1-100} planes upon cooling to room temperature, but remained adherent. We were able to examine the microstructure of material between cracks with TEM. The character and arrangement of dislocation are much like those of GaN grown on Al{sub 2}O{sub 3}: -2/3 pure edge and - 1/3 mixed (edge + screw), arranged in boundaries around domains of GaN that ar… more
Date: December 17, 1998
Creator: Fleming, J.G.; Follstaedt, D.M.; Han, J. & Provencio, P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Measurement of Truck Cab Flow in Support of Wind Turbine Testing

Description: This report describes an experiment to measure the airflow over a truck cab that can be used to conduct steady-state tests on an 8-kW wind turbine. The cab airflow measurements were made to document the turbine inflow for analytical models. The airflow measurements were made with an array of anemometers positioned to represent the turbine rotor disk. The data showed that the influence of the truck cab was primarily in the lower sector of the rotor disk. The influence was negligible in the rest … more
Date: December 17, 1998
Creator: Larwood, S. M. (National Renewable Energy Laboratory); Acker, B. & Sencenbaugh, J. (Windlite Corporation)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A finite-difference frequency-domain code for electromagnetic induction tomography

Description: We are developing a new 3D code for application to electromagnetic induction tomography and applications to environmental imaging problems. We have used the finite-difference frequency- domain formulation of Beilenhoff et al. (1992) and the anisotropic PML (perfectly matched layer) approach (Berenger, 1994) to specify boundary conditions following Wu et al. (1997). PML deals with the fact that the computations must be done in a finite domain even though the real problem is effectively of infini… more
Date: December 17, 1998
Creator: Sharpe, R. M.; Berryman, J. G.; Buettner, H. M.; Champagne, N. J., II & Grant, J. B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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