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Integrating Grid Services into the Cray XT4 Environment

Description: The 38640 core Cray XT4"Franklin" system at the National Energy Research Scientific Computing Center (NERSC) is a massively parallel resource available to Department of Energy researchers that also provides on-demand grid computing to the Open Science Grid. The integration of grid services on Franklin presented various challenges, including fundamental differences between the interactive and compute nodes, a stripped down compute-node operating system without dynamic library support, … more
Date: May 1, 2009
Creator: NERSC; Cholia, Shreyas & Lin, Hwa-Chun Wendy
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

A BRIEF DESCRIPTION OF THE ROVER-TYPE REACTOR, ITS INHERENT SAFETY PROBLEMS AND TEST PROGRAMS

Description: The Rover type reactor is described briefly, and the problems of Rover flight safety are considered. The safety program is described in some detail, and launch pad accidents and post-operation disposal of the reactor are considered. A poison system will be used during reactor assembly and launch. (D.L.C.)
Date: October 31, 1964
Creator: King, L.D.P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Use of comprehensive NEPA documents to reduce program risk

Description: Sandia National Laboratories operates DOE`s Kauai Test Facility (KTF) on the western coast of the Hawaiian island of Kauai. In July 1992, DOE approved a comprehensive Environmental Assessment (EA) covering ongoing and future rocket launches of experimental payloads. The KTF EA fulfilled two basic objectives: Consideration of environmental values early in the planning and decision making process; and public disclosure. These objectives can also be considered to be benefits of preparing comprehen… more
Date: April 1, 1994
Creator: Wolff, T. A. & Hansen, R. P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Boeing Michigan Aeronautical Research Center (BOMARC) missile accident site mitigation review

Description: In December 1995, the Los Alamos National Laboratory (LANL) was requested by SAF/MIQ to review the information associated with the BOMARC missile accident site and the November 16, 1992 Record of Decision (ROD). The purpose of this review was, {open_quotes}{hor_ellipsis} to help ensure our plans call for using the most efficient and up-to-date technology in our cleanup, and to ensure our plans to ship the contaminated waste meet all regulatory requirements.{close_quotes}
Date: May 22, 1996
Creator: McCulla, W. H.; Rea, K. H. & Plannerer, H. N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

SNAP Radioisotope Space Programs Quarterly Progress Report No. 9, October 1 Through December 31, 1961

Description: All Phase I and Phase II testing was completed. Both launches of Phase I were successful, neither Phase II launches were successful. Test data recovered on Phase I launchings included optical coverage of re-entry and the trajectory and weather data; no telemetry canister temperature data were obtained. No test data were obtained on Phase II experiments. Reduction of Phase I test data was begun. The Phase II (Sub-subtask 7.3.2) was terminated December 20, 1961, when no test data were recovered f… more
Date: October 31, 1962
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Design and Implementation of Geothermal Energy Systems at West Chester University

Description: West Chester University is launching a comprehensive transformation of its campus heating and cooling systems from traditional fossil fuels (coal, oil and natural gas) to geothermal. This change will significantly decrease the institution's carbon footprint and serve as a national model for green campus efforts. The institution is in the process of designing and implementing this project to build well fields, a pumping station and install connecting piping to provide the geothermal heat/cooling… more
Date: August 31, 2011
Creator: Cuprak, Greg
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Combustion Byproducts Recycling Consortium

Description: The Combustion Byproducts Recycling Consortium (CBRC) program was developed as a focused program to remove and/or minimize the barriers for effective management of over 123 million tons of coal combustion byproducts (CCBs) annually generated in the USA. At the time of launching the CBRC in 1998, about 25% of CCBs were beneficially utilized while the remaining was disposed in on-site or off-site landfills. During the ten (10) year tenure of CBRC (1998-2008), after a critical review, 52 projects … more
Date: August 31, 2008
Creator: Ziemkiewicz, Paul; Vandivort, Tamara; Pflughoeft-Hassett, Debra; Chugh, Y. Paul & Hower, James
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Debris cloud characterization in the liquid-vapor phase

Description: A series of experiments has been performed on the Sandia Hypervelocity Launcher to impact a 1.25-mm thick aluminum bumper by an aluminum flier plate 17-mm diameter by 0.92-mm thick over the velocity range of 5 km/s to 11 km/s. Radiographic techniques were employed to record the debris cloud generated upon impact. The shape of the debris cloud is found to depend on the flier plate tilt. Generally the data indicate a central core of higher density surrounded by a diffused layer. These experiments… more
Date: October 1, 1993
Creator: Chhabildas, L. C.; Boslough, M. B.; Reinhart, W. D. & Hall, C. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Preliminary Operational Safety Report for the Task 5.6 Thermoelectric Generator

Description: The operational hazards associated with the use of a plutonium-fueled thermoelectric generator in a terrestrial satellite are evaluated. It appears that the plutonium fuel can be consumed and dispersed at high altitude during reentry, following a successful mission. As an alternative, however, since the fuel (Pu/sup 238/) is an alpha emitter with a long half life, it appears that random intant recntry following a suceessful mission is feasible. As a precaution against aborted missions, the laun… more
Date: May 1, 1960
Creator: Knighton, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Performance Modeling for 3D Visualization in a Heterogeneous Computing Environment

Description: The visualization of large, remotely located data sets necessitates the development of a distributed computing pipeline in order to reduce the data, in stages, to a manageable size. The required baseline infrastructure for launching such a distributed pipeline is becoming available, but few services support even marginally optimal resource selection and partitioning of the data analysis workflow. We explore a methodology for building a model of overall application performance using a compositio… more
Date: June 30, 2004
Creator: Bowman, Ian; Shalf, John; Ma, Kwan-Liu & Bethel, Wes
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Apollo 17 Lunar Surface Journal

Description: The material included in the Apollo 17 Lunar Surface Journal has been assembled so that an uninitiated reader can understand, in some detail, what happened during Apollo 17 and why and what was learned, particularly about living and working on the Moon. At its heart, the Journal consists a corrected mission transcript which is interwoven with commentary by the crew and by Journal Editor -- commentary which, we hope, will make the rich detail of Apollo 17 accessible to a wide audience. To make t… more
Date: August 1995
Creator: Jones, E. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Launching an Energy-Efficient Future in Alabama: Weatherization Assistance Close-Up Fact Sheet

Description: Alabama demonstrates its commitment to technology and efficiency through the Weatherization Program. Weatherization uses advanced technologies and techniques to reduce energy costs for low-income families by increasing the energy efficiency of their homes.
Date: October 10, 2001
Creator: D&R International
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
open access

Simultaneous velocity interferometry and electronic streak photography of laser-launched plates

Description: Laser-launched, miniature, pseudo-one-dimensional flyer plates are evaluated by three distinct optical techniques that may be incorporated into an optical diagnostic system to give a complete understanding of the plate performance. These techniques are: velocity interferometry, streak photography, and pulsed laser stereo photography. 2 refs., 5 figs.
Date: January 1, 1991
Creator: Paisley, D. L.; Stahl, D. B. & Garcia, I. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Explorer-II: Wireless Self-Powered Visual and NDE Robotic Inspection System for Live Gas Distribution Mains

Description: Carnegie Mellon University (CMU) under contract from Department of Energy/National Energy Technology Laboratory (DoE/NETL) and co-funding from the Northeast Gas Association (NGA), has completed the overall system design, field-trial and Magnetic Flux Leakage (MFL) sensor evaluation program for the next-generation Explorer-II (X-II) live gas main Non-destructive Evaluation (NDE) and visual inspection robot platform. The design is based on the Explorer-I prototype which was built and field-tested… more
Date: September 30, 2008
Creator: University, Carnegie Mellon
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Superpressure Stratospheric Vehicle

Description: Our need for wide-band global communications, earth imaging and sensing, atmospheric measurements and military reconnaissance is extensive, but growing dependence on space-based systems raises concerns about vulnerability. Military commanders require space assets that are more accessible and under local control. As a result, a robust and low cost access to space-like capability has become a national priority. Free floating buoyant vehicles in the middle stratosphere can provide the kind of cost… more
Date: September 15, 1990
Creator: Chocol, C.; Robinson, W. & Epley, L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Numerical simulations of gun-launched kinetic energy projectiles subjected to asymmetric projectile base pressure

Description: Three-dimensional numerical simulations were performed to determine the effect of an asymmetric base pressure on kinetic energy projectiles during launch. A matrix of simulations was performed in two separate launch environments. One launch environment represented a severe lateral load environment, while the other represented a nonsevere lateral load environment based on the gun tube straightness. The orientation of the asymmetric pressure field, its duration, the projectile`s initial position,… more
Date: December 31, 1991
Creator: Rabern, D. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Projectile transverse motion and stability in electromagnetic induction launchers

Description: The transverse motion of a projectile in an electromagnetic induction launcher is considered. The equations of motion for translation and rotation are derived assuming a rigid projectile and a flyway restoring force per unit length that is proportional to the local displacement. Transverse forces and torques due to energized coils are derived for displaced or tilted projectile elements based on a first order perturbation method. The resulting equations of motion for a rigid projectile composed … more
Date: August 1, 1993
Creator: Shokair, I. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Prevention of a nuclear excursion upon water flooding of an ocean based Tory II-C

Description: As TORY II-C is presently designed, a nuclear excursion would occur if the core were flooded with water. This is true even if all of the existing control rods were fully inserted. Indeed ANGIE calculations indicate that the reactor would be about 30% super-critical in such a case. There are several methods by which the core may be forced sub- critical under these extreme conditions. We will here consider only the method of introducing, directly into the core, a material which strongly absorbs n… more
Date: December 14, 1962
Creator: Stubbs, T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Lunar South Pole space water extraction and trucking system

Description: This concept proposes to use thermal processes alone to extract water from the lunar South Pole and launch payloads to low lunar orbit. Thermal steam rockets would use water propellant for space transportation. The estimated mass of a space water tanker powered by a nuclear heated steam rocket suggests it can be designed for launch in the Space Shuttle bay. The performance depends on the feasibility of a nuclear reactor rocket engine producing steam at 1,100 degrees Kelvin, with a power density… more
Date: March 1, 1998
Creator: Zuppero, A.; Zupp, G.; Schnitzler, B.; Larson, T. K. & Rice, J. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

A system architecture for long duration free floating flight for military applications

Description: Accessibility is today's space frontier. Our need for wide-band global communications, earth imaging an sensing, atmospheric measurements and military reconnaissance is endless but growing dependence on space-based systems raises concerns about potential vulnerability. Military commanders want space assets more accessible and under direct local control. As a result, a robust and low cost access to space-like capability has become a national priority. Buoyant vehicles, free floating in the middl… more
Date: August 31, 1990
Creator: Epley, L.E. (CIRRUS Aerospace Corp., Burke, VA (USA))
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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