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N = 2 string amplitudes

Description: In physics, solvable models have played very important roles. Understanding a simple model in detail teaches us a lot about more complicated models in generic situations. Five years ago, C. Vafa and I found that the closed N = 2 string theory, that is a string theory with the N = 2 local supersymmetry on the worldsheet, is classically equivalent to the self-dual Einstein gravity in four spacetime dimensions. Thus this string theory is solvable at the classical level. More recently, we have exam… more
Date: August 1, 1995
Creator: Ooguri, H.
Item Type: Refine your search to only Article
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45-day safety screen results for tank 241-C-204, auger samples 95-Aug-022 and 95-Aug-023

Description: Two auger samples from tank 241-C-204 (C-204) were received at the 222-S Laboratories and underwent safety screening analysis, consisting of differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and total alpha activity. The three samples submitted to energetics determination by DSC exceeded the notification limit. As required by the Tank Characterization Plan, the appropriate notifications were made within 24 hours of official confirmation that the limit was exceeded. Seco… more
Date: August 15, 1995
Creator: Conner, J.M.
Item Type: Refine your search to only Report
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1994 Triggered Lightning Test Program: Measured responses of a reinforced concrete building under direct lightning attachments

Description: A rocket-triggered lightning test was carried out during the summer of 1994 on a specially designed steel reinforced concrete test building located at Ft. McClellan, Alabama. Currents, voltages, and magnetic fields were measured at 24 instrumented locations during 42 return strokes triggered to designated points on the structure and its lightning protection systems. As was found during an earlier similar lightning test of an earth covered munitions storage building, the buried power service con… more
Date: August 1, 1995
Creator: Schnetzer, G. H.; Chael, J.; Davis, R.; Fisher, R. J. & Magnotti, P. J.
Item Type: Refine your search to only Report
open access

1994 Triggered lightning test program: Measured responses of a reinforced concrete building under direct lightning attachments, Volume 2: Test data

Description: A rocket-triggered lightning test was carried out during the summer of 1994 on a specially designed steel reinforced concrete test building located at Ft. McClellan, Alabama. Currents, voltages, and magnetic fields were measured at 24 instrumented locations during 42 return strokes triggered to designated points on the structure and its lightning protection system. Detailed descriptions of the test structure, measurements, and test procedures are given in Volume 1 of this report. The present vo… more
Date: August 1, 1995
Creator: Schnetzer, G. H.; Chael, J. & Davis, R.
Item Type: Refine your search to only Report
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1995 Area 1 bird survey/Zone 1, Operable Unit 2, Robins Air Force Base, Georgia

Description: Robins Air Force Base is located in Warner Robins, Georgia, approximately 90 miles southeast of Atlanta, Georgia. As part of the Baseline Investigation (CDM Federal 1994) a two day bird survey was conducted by M. C. Wade (Oak Ridge National Laboratory) and B.A. Beatty (CDM Federal Programs) in May 1995. The subject area of investigation includes the sludge lagoon, Landfill No. 4, and the wetland area east of the landfill and west of Hannah Road (including two ponds). This is known as Area 1. Th… more
Date: August 1, 1995
Creator: Wade, M.C.
Item Type: Refine your search to only Report
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The 1995 Japan-U.S. Auto and Parts Trade Dispute: Terms of the Settlement and Implications

Description: On June 28, 1995, the United States and Japan reached a settlement in a long-running dispute over access to Japan's market for automobiles and parts. 100-percent tariffs by the United States on imports of luxury cars from Japan had been threatened under a Section 301 unfair trade practices case dealing with the aftermarket for autoparts in Japan. This report describes the dispute, the settlement, and questions and issues that still remain.
Date: August 9, 1995
Creator: Nanto, Dick K. & Bass, Gwenell L.
Item Type: Refine your search to only Report
open access

3D Plasma Fluid Simulations in Divertor Tokamaks. Final Technical Report, 1993--1995

Description: The main accomplishment of this grant was the development of a finite element time dependent magnetofluid code, FEMHD. The code is nonlinear and three dimensional. In the poloidal plane, the elemental cells of the mesh are triangles, which offer both simplicity and adaptability. In the third, toroidal, direction, there is an option of a standard staggered finite difference mesh, or Fourier transforms. The FEMHD code runs on several platforms, including Crays, UNIX workstations, and a parallel v… more
Date: August 1, 1995
Creator: Strauss, H. R.
Item Type: Refine your search to only Report
open access

Accelerator Research Studies. Final Report, June 1, 1994--May 31, 1995

Description: The Accelerator Research Studies program at the University of Maryland, sponsored by the Department of Energy has completed the third year of its three-year funding cycle and an additional one-year, no-cost extension. The program consisted of the following three tasks: Task A -- Study of the transport and longitudinal compression of intense, high-brightness beams; Task B -- Study of high-brightness beam generation in pseudospark devices; Task C -- Study of a gyroklystron high-power microwave so… more
Date: August 1, 1995
Item Type: Refine your search to only Report
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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
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Actinide chemistry research supporting the Waste Isolation Pilot Plant (WIPP): FY94 results

Description: This document contains six reports on actinide chemistry research supporting the Waste Isolation Pilot Plant (WIPP). These reports, completed in FY94, are relevant to the estimation of the potential dissolved actinide concentrations in WIPP brines under repository breach scenarios. Estimates of potential dissolved actinide concentrations are necessary for WIPP performance assessment calculations. The specific topics covered within this document are: the complexation of oxalate with Th(IV) and U… more
Date: August 1995
Creator: Novak, C. F.
Item Type: Refine your search to only Report
open access

Activation of shallow dopants in II-VI compounds

Description: The amphoteric native defect model is applied to the understanding of the variations in the dopant activation efficiency in II-VI compounds. It is shown that the location of the common energy reference, the Fermi level stabilization energy, relative to the band edges can be used to determine the doping induced reduction of the formation energy and the enhancement of the concentration of compensating native defects. The model is applied to the most extensively studied compound semiconductors as … more
Date: August 1, 1995
Creator: Walukiewicz, W.
Item Type: Refine your search to only Article
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Addendum to the health and safety plan for Waste Area Grouping 6 at Oak Ridge National Laboratory, Oak Ridge, Tennessee. Environmental Restoration Program

Description: There are three purposes for this addendum to the health and safety plan for Waste Area Grouping 6. The first purpose is to provide record of a corrective action response concerning an occurrence on WAG 6 in October 1994 (ORO-MMES-ENVRES-1994-0016.) This occurrence involved a precautionary evacuation of subcontractor field crews due to malfunctioning monitor alarms for organic vapors. The corrective action is to revise the WAG 6 Site health and safety plan to improve communications during emerg… more
Date: August 1, 1995
Creator: Clark, C. Jr.; Burman, S.N. & Wilson, K.A.
Item Type: Refine your search to only Report
open access

Addendum to the test of CP violation in Tau decay

Description: We discuss the test of CP and CPT violation in Tau decay without using the polarized electron beam by comparing partial fractions of tau(-) and tau(+) decay into channels with strong final state interactions. For example, gamma(tau(-) right arrow pi(-) + pi(0) + nu) not equal gamma(tau(+) right arrow pi(+) + pi(0) + nu) signifies violation of CP. The optimum energy to investigate CP violation in tau decay is discussed. We conclude that this energy is a few MeV below psi(2s) in order to avoid th… more
Date: August 1, 1995
Creator: Tsai, Yung Su
Item Type: Refine your search to only Article
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Addressing transportation energy and environmental impacts: technical and policy research directions

Description: The Lawrence Livermore National Laboratory (LLNL) is establishing a local chapter of the University of California Energy Institute (UCEI). In order to most effectively contribute to the Institute, LLNL sponsored a workshop on energy and environmental issues in transportation. This workshop took place in Livermore on August 10 and brought together researchers from throughout the UC systems in order to establish a joint LLNL-UC research program in transportation, with a focus on energy and enviro… more
Date: August 1, 1995
Creator: Weissenberger, S.; Pasternak, A.; Smith, J. R. & Wallman, H.
Item Type: Refine your search to only Article
open access

Adequacy of the 123-group cross-section library for criticality analyses of water-moderated uranium systems

Description: In a recent criticality analysis for an array of water-moderated packages containing highly enriched uranium, the 123-group cross-section library in the SCALE system was observed to have a nonconservative discrepancy of approximately 3 to 3.5% when compared with more recently developed libraries. A simple representative system of UO{sub 2}F{sub 2}-H{sub 2}O was used to identify that the problem results from a lack of resonance data for {sup 235}U. Only a single set of self-shielded cross sectio… more
Date: August 1, 1995
Creator: Parks, C. V.; Wright, R. Q. & Jordan, W. C.
Item Type: Refine your search to only Report
open access

Advanced light source vacuum policy and vacuum guidelines for beamlines and experiment endstations

Description: The purpose of this document is to: (1) Explain the ALS vacuum policy and specifications for beamlines and experiment endstations. (2) Provide guidelines related to ALS vacuum policy to assist in designing beamlines which are in accordance with ALS vacuum policy. This document supersedes LSBL-116. The Advanced Light Source is a third generation synchrotron radiation source whose beam lifetime depends on the quality of the vacuum in the storage ring and the connecting beamlines. The storage ring… more
Date: August 1, 1995
Creator: Hussain, Z.
Item Type: Refine your search to only Report
open access

Advanced Neutron Source Dynamic Model (ANSDM) code description and user guide

Description: A mathematical model is designed that simulates the dynamic behavior of the Advanced Neutron Source (ANS) reactor. Its main objective is to model important characteristics of the ANS systems as they are being designed, updated, and employed; its primary design goal, to aid in the development of safety and control features. During the simulations the model is also found to aid in making design decisions for thermal-hydraulic systems. Model components, empirical correlations, and model parameters… more
Date: August 1, 1995
Creator: March-Leuba, J.
Item Type: Refine your search to only Report
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The Advanced Neutron Source liquid deuterium cold source

Description: The Advanced Neutron Source will employ two cold sources to moderate neutrons to low energy (<10 meV). The cold neutrons produced are then passed through beam guides to various experiment stations. Each cold source moderator is a sphere of 410-mm internal diameter. The moderator material is liquid deuterium flowing at a rate of 1 kg/s and maintained at subcooled temperatures at all points of the circuit, to prevent boiling. Nuclear beat deposited within the liquid deuterium and its containment … more
Date: August 1, 1995
Creator: Lucas, A.T.
Item Type: Refine your search to only Report
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Advanced Neutron Source radiological design criteria

Description: The operation of the proposed Advanced Neutron Source (ANS) facility will present a variety of radiological protection problems. Because it is desired to design and operate the ANS according to the applicable licensing standards of the Nuclear Regulatory Commission (NRC), it must be demonstrated that the ANS radiological design basis is consistent not only with state and Department of Energy (DOE) and other usual federal regulations, but also, so far as is practicable, with NRC regulations and … more
Date: August 1, 1995
Creator: Westbrook, J.L.
Item Type: Refine your search to only Report
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Advanced neutron source reactor probabilistic flow blockage assessment

Description: The Phase I Level I Probabilistic Risk Assessment (PRA) of the conceptual design of the Advanced Neutron Source (ANS) Reactor identified core flow blockage as the most likely internal event leading to fuel damage. The flow blockage event frequency used in the original ANS PRA was based primarily on the flow blockage work done for the High Flux Isotope Reactor (HFIR) PRA. This report examines potential flow blockage scenarios and calculates an estimate of the likelihood of debris-induced fuel da… more
Date: August 1, 1995
Creator: Ramsey, C. T.
Item Type: Refine your search to only Report
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Advanced Neutron Source Reactor thermal analysis of fuel plate defects

Description: The Advanced Neutron Source Reactor (ANSR) is a research reactor designed to provide the highest continuous neutron beam intensity of any reactor in the world. The present technology for determining safe operations were developed for the High Flux Isotope Reactor (HFIR). These techniques are conservative and provide confidence in the safe operation of HFIR. However, the more intense requirements of ANSR necessitate the development of more accurate, but still conservative, techniques. This repor… more
Date: August 1, 1995
Creator: Giles, G. E.
Item Type: Refine your search to only Report
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