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Investigation of Sodium Distribution in Phosphate Glasses Using Spin-Echo {sup 23}Na NMR

Description: The spatial arrangement of sodium cations for a series of sodium phosphate glasses, xNa{sub 2}O(100-x)P{sub 2}O{sub 5} (x<55), were investigated using {sup 23}Na spin-echo NMR spectroscopy. The spin-echo decay rate is a function of the Na-Na homonuclear dipolar coupling and is related to the spatial proximity of neighboring Na nuclei. The spin-echo decay rate in these sodium phosphate glasses increases non-linearly with higher sodium number density, and thus provides a measure of the Na-Na e… more
Date: September 16, 1999
Creator: ALAM, TODD M.; BOYLE, TIMOTHY J.; BROW, RICHARD K.; CLICK, CAROL C.; CONZONE, SAM; McLAUGHLIN, JAY et al.
Item Type: Refine your search to only Article
open access

High Precision Droplet Based New Form Manufacturing

Description: In collaboration with the University of California at Irvine (UCI), we are working on a new technology that relies on the precise deposition of nanoliter molten-metal droplets that are targeted onto a substrate by electrostatic charging and deflection. By this way, three-dimensional (3D) structural materials can be manufactured microlayer by microlayer. Because the volume of the droplets are small, they rapidly solidify on impact, bringing forth a material component with fine grain structures w… more
Date: September 16, 1999
Creator: Aceves, S.; Hadjiconstantinou, N.; Miller, W. O.; Orme, M.; Sahai, V. & Shapiro, A. B.
Item Type: Refine your search to only Report
open access

Pion, kaon, proton and anti-proton transverse momentum distributions from p+p and d+Au collisions at sqrt(sNN) = 200 GeV

Description: Identified mid-rapidity particle spectra of {pi}{sup {+-}}, K{sup {+-}}, and p({bar p}) from 200 GeV p+p and d+Au collisions are reported. A time-of-flight detector based on multi-gap resistive plate chamber technology is used for particle identification. The particle-species dependence of the Cronin effect is observed to be significantly smaller than that at lower energies. The ratio of the nuclear modification factor (R{sub dAu}) between (p+ {bar p}) and charged hadrons (h) in the transverse … more
Date: September 16, 2003
Creator: Adams, J.; Adler, C.; Aggarwal, M. M.; Ahammed, Z.; Amonett, J.; Anderson, B. D. et al.
Item Type: Refine your search to only Article
open access

Administrative Appeals in the Bureau of Land Management and the Forest Service

Description: This report describes Congressional interest in the Bureau of Land Management's (BLM) appeal process due to rumors that it affects the BLM's capacity to handle various resources. Moreover, the report defines what an administrative appeal is, and describes the process required to undertake one. The report also lists the various types of administrative appeals.
Date: September 16, 2013
Creator: Alexander, Kristina
Item Type: Refine your search to only Report
open access

Integrated Micro-Optical Fluorescence Detection System for Microfluidic Electrochromatography

Description: The authors describe the design and microfabrication of an extremely compact optical system as a key element in an integrated capillary-channel electrochromatograph with laser induced fluorescence detection. The optical design uses substrate-mode propagation within the fused silica substrate. The optical system includes a vertical cavity surface-emitting laser (VCSEL) array, two high performance microlenses and a commercial photodetector. The microlenses are multilevel diffractive optics patter… more
Date: September 16, 1999
Creator: Allerman, Andrew A.; Arnold, Don W.; Asbill, Randolph E.; Bailey, Christopher G.; Carter, Tony Ray; Kemme, Shanalyn A. et al.
Item Type: Refine your search to only Article
open access

The Growth of InGaAsN for High Efficiency Solar Cells by Metalorganic Chemical Vapor Deposition

Description: InGaAsN alloys are a promising material for increasing the efficiency of multi-junction solar cells now used for satellite power systems. However, the growth of these dilute N containing alloys has been challenging with further improvements in material quality needed before the solar cell higher efficiencies are realized. Nitrogen/V ratios exceeding 0.981 resulted in lower N incorporation and poor surface morphologies. The growth rate was found to depend on not only the total group III transpor… more
Date: September 16, 1999
Creator: Allerman, Andrew A.; Banks, James C.; Gee, James M.; Jones, Eric D. & Kurtz, Steven R.
Item Type: Refine your search to only Article
open access

Radiological background levels found on glass fiber filters used for low-level environmental surveillance air sampling

Description: Environmental surveillance of low-level radioactive particles in air requires a thorough understanding of low-level techniques and air sample collection media. High-volume air sampling for radioactive particles around Lawrence Livermore National Laboratory (LLNL) employs glass-fiber filters that are analyzed for gross alpha and gross beta activity and for specific isotopes. This study was conducted to determine the activities of radionuclides contained in blank glass-fiber filters. Data from th… more
Date: September 16, 1998
Creator: Althouse, P. E.
Item Type: Refine your search to only Article
open access

Analysis of a reported magnetic monopole

Description: It is shown that there are several substantive errors in a previous work on a cosmic ray event which is consistent with the hypothesis that it was caused by a magnetic monopole. It is shown that the data points fit to the hypothesis that the responsible particle is a platinum nucleus fragmenting to osmium and then to tantalum. (JFP)
Date: September 16, 1975
Creator: Alvarez, L.W.
Item Type: Refine your search to only Article
open access

Electroweak phase transitions

Description: An analytic treatment of the one Higgs doublet, electroweak phase transition is given. The phase transition is first order, occurs by the nucleation of thin walled bubbles and completes at a temperature where the order parameter, {l_angle}{phi}{r_angle}{sub T} is significantly smaller than it is when the origin becomes absolutely unstable. The rate of anomalous baryon number violation is an exponentially function of {l_angle}{phi}{r_angle}{sub T}. In very minimal extensions of the standard mode… more
Date: September 16, 1991
Creator: Anderson, G. W.
Item Type: Refine your search to only Thesis or Dissertation
open access

Electroweak phase transitions

Description: An analytic treatment of the one Higgs doublet, electroweak phase transition is given. The phase transition is first order, occurs by the nucleation of thin walled bubbles and completes at a temperature where the order parameter, {l angle}{phi}{r angle}{sub T} is significantly smaller than it is when the origin becomes absolutely unstable. The rate of anomalous baryon number violation is an exponentially function of {l angle}{phi}{r angle}{sub T}. In very minimal extensions of the standard mode… more
Date: September 16, 1991
Creator: Anderson, G.W.
Item Type: Refine your search to only Report
open access

Commercial Building Partnerships Replication and Diffusion

Description: This study presents findings from survey and interview data investigating replication efforts of Commercial Building Partnership (CBP) partners that worked directly with the Pacific Northwest National Laboratory (PNNL). PNNL partnered directly with 12 organizations on new and retrofit construction projects, which represented approximately 28 percent of the entire U.S. Department of Energy (DOE) CBP program. Through a feedback survey mechanism, along with personal interviews, PNNL gathered quant… more
Date: September 16, 2013
Creator: Antonopoulos, Chrissi A.; Dillon, Heather E. & Baechler, Michael C.
Item Type: Refine your search to only Report
open access

ELECTROMOTIVE FORCE, EMF (CELLS)

Description: The voltage or electric potential difference across the terminals of a cell when no current is drawn from it. The emf of a cell is the sum of the electric potential differences (PDs) produced by a separation of charges (electrons or ions) that can occur at each phase boundary (or interface) in the cell. The magnitude of each PD depends on the chemical nature of the two contacting phases. Thus, at the interface between two different metals, some electrons will have moved from the metal with a hi… more
Date: September 16, 1998
Creator: Archer, M. D. & Feldberg, S. W.
Item Type: Refine your search to only Text
open access

Fuel Failure Examinations and Analyses in the High Power Density Program

Description: Summary: The High Power Density Project includes a comprehensive fuel development program which has the objective of developing and demonstrating the performance of a nuclear reactor core having a high power density, long fuel life, and low fabrication cost. The fuel program is made up of two principal tasks. Task 1A consists of irradiation tests in the VBWR of Type 304 stainless steel clad, UO2 pellet type fuel rods fabricated by current commercial processes. Task 1B consists of the investigat… more
Date: September 16, 1963
Creator: Arlt, W. H. & Vandenberg, S. R.
Item Type: Refine your search to only Report
open access

CRADA final report for CRADA number Y-1293-0185: Process modelling and machining operations development

Description: Lockheed Martin Energy Systems, Inc. and Ferro Corporation (formerly W. R. Grace, the original CRADA partner) have collaborated on an effort to develop techniques and processes for the cost-effective machining of ceramic components. The purpose of this effort was to develop a machining model, and grinding equipment machines and techniques for fabricating precision ceramic components. This project was designed to support Department of Energy (DOE) technical needs in manufacturing hard materials … more
Date: September 16, 1996
Creator: Arnold, J.B.; Kruse, K.L. & Stone, P.K.
Item Type: Refine your search to only Report
open access

Plutonium Finishing Plant (PFP) Standby Power System Commercial Grade Item (CGI) Critical Characteristics

Description: PEP's Standby Power System consists of the diesel generators, the generator control system, Rm 308 UPS, switchgear batteries, and the electrical equipment used to distribute this power. Due to the nature of the equipment and its use throughout general industry, the majority of the system falls within the CGI definition HNF-PRO-268. ''Control of Purchased Items and Services'' and HNF-PRO-1819, ''PHMC Engineering Requirements'' require that the critical characteristics of CGI-procured equipment b… more
Date: September 16, 1999
Creator: BUSCH, M.S.
Item Type: Refine your search to only Report
open access

D0 Silicon Upgrade: VLPC Prototype Cryostat Custom J1 VME Backplane Specification

Description: The general physical layout is: (1) There are a total of 9 slots, designated 1 through 9, from left to right; (2) Each slot is associated with a 96 pin Class 2 DIN 41612 (VME type) connector; (3) All even numbered slots are right handed (Connectors to the right of the card)., as would be found on a normal VME J1 backplane, these slots utilize standard DIN connectors; (4) All odd numbered slots are left handed. These slots utilize standard 96 pin Class 2 DIN 41612 connectors orientated with 180 … more
Date: September 16, 1996
Creator: Baert, Mark
Item Type: Refine your search to only Report
open access

Equivalent-Circuit Model for the Thickness-Shear Mode Resonator with a Viscoelastic Film Near Film Resonance

Description: We derive a lumped-element, equivalent-circuit model for the thickness shear mode (TSM) resonator with a viscoelastic film. This modified Butterworth-Van Dyke model includes in the motional branch a series LCR resonator, representing the quartz resonance, and a parallel LCR resonator, representing the film resonance. This model is valid in the vicinity of film resonance, which occurs when the acoustic phase shift across the film is an odd multiple of {pi}/2 radians. This model predicts accurate… more
Date: September 16, 1999
Creator: Bandey, Helen L.; Brown, Mark J.; Cernosek, Richard W.; Hillman, A. Robert & Martin, Stephen J.
Item Type: Refine your search to only Article
open access

Equivalent-Circuit Model for the TSM Resonator with a Viscoelastic Layer

Description: This paper describes a new equivalent-circuit model for the thickness shear mode resonator with a surface viscoelastic layer operating near film resonance. The electrical impedance of the film is represented by a simple three-element parallel circuit containing a resistor, a capacitor, and an inductor. These elements describe the film's viscous power dissipation, elastic energy storage, and kinetic energy storage, respectively. Resonator response comparisons between this lumped-element model an… more
Date: September 16, 1999
Creator: Bandey, Helen L.; Cernosek, Richard W.; Hillman, A. R. & Martin, Stephen J.
Item Type: Refine your search to only Article
open access

The solubilities of significant organic compounds in HLW tanks upernate solutions - FY 1997 progress report

Description: The solubilities of seven sodium salts of organic acids that are thought to exist in high-level waste at the Hanford Site were measured in tank supernatant simulant solutions during FY 1997. This solubility information will be used to determine if these organic salts could exist in solid phases (saltcake or sludges) in the waste where they might react violently with the nitrate or nitrite salts present in the tanks. The solubility of sodium acetate was measured in simulated waste supernate solu… more
Date: September 16, 1997
Creator: Barney, G.S.
Item Type: Refine your search to only Report
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