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Storm Data and Unusual Weather Phenomena, Volume 18, Number 12, December 1976

Description: Monthly report containing a chronological listing, by state, of hurricanes, tornadoes, thunderstorms, hail, floods, drought conditions, lightning, high winds, snow, temperature extremes and other weather phenomena. It also provides information on storm paths, deaths, injuries, and property damage.
Date: February 14, 1977
Creator: National Climatic Center
Partner: UNT Libraries Government Documents Department
open access

Maintaining American Leadership in Artificial Intelligence

Description: This report is an executive order outlining the role of artificial intelligence in United States government and daily life, and also asserts American leadership in AI.
Date: February 14, 2019
Creator: Trump, Donald J.
Partner: UNT Libraries Government Documents Department
open access

Prescoping Optimization for Selection of Enriched Uranium Gas-Cooled Power Reactor Design

Description: A preliminary set of performance calculations were made for enriched reactor cores based on five cylindrical vessel designs ranging from13 to 36 feet in diameter. The capital costs per kilowatt of electrical plant output as shown in Table II indicate than an economic optimum selection of pressure vessel size should be either the 25 foot or the 36 foot vessel.
Date: February 14, 1958
Creator: Farmer, W.; Hill, E.; Lang, P.; Trickett, K. & Matovich, S.
Partner: UNT Libraries Government Documents Department
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Equilibrium Adsorption of Krypton and Xenon on Activated Carbon and Linde Molecular Sieves

Description: Equilibrium krypton and xenon adsorption isotherms were obtained for four varieties of charcoal and for Linde Molecular Sieves Types 4A and 5A, generally at 0, 25, and 60°c. Such data are of interest in connection with design and evaluation of adsorbers for radioactive noble gas fission products. The isotherms were fitted, by linear regression analysis, to straight-line forms of the Freundlich and Langmuir equations. The Freundlich linear equation gave the better fit and the parameters of this … more
Date: February 14, 1961
Creator: Ackley, R. D. & Browning, W. E., Jr.
Partner: UNT Libraries Government Documents Department
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A Useful Solution for Short Cylindrical Shells and Other Applications

Description: The general solution to the basic differential equation d^4w/dy^4 +4w= -4f(y) is transformed from the primary form treated in most texts to an alternate form in which each integration constant corresponds to one edge condition at y=0. The relationships between the integration constants of the two forms are derived and the values for the transformed functions are tabulated. The particular solution is derived in general and given in unique form for various functional forms of f(y). Matrix notatio… more
Date: February 14, 1961
Creator: Moore, S. E.
Partner: UNT Libraries Government Documents Department
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Gold Gaskets for Process Piping

Description: The objective of this study was to determine the practicality of gold as a gasket material.
Date: February 14, 1957
Creator: Wirta, R. W.
Partner: UNT Libraries Government Documents Department
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Examination of Irradiated Uranium-Chromium Alloy Slugs

Description: Production Test 313-105-13-M authorized the irradiation of a uranium - 0.4 atomic per cent chromium alloy to determine the relative stability of this material during irradiation. Five tubes, each containing six four-inch alloy slugs, were irradiated to exposures ranging from 156 to 834 MWD/T. This report describes the results of the visual examination of the bare uranium alloy slugs and the results of the test to determine slug breaking strength. The breaking strength of both the U-Cr alloy slu… more
Date: February 14, 1955
Creator: Kratzer, W. K.
Partner: UNT Libraries Government Documents Department
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Effect of Routing Upon Temperature of Cooling Stream

Description: With discussion under way concerning power production by chain reacting piles, it becomes pertinent to consider the ration of the temperature of the hottest spot in the pile to the average exit temperature of the cooling stream. This is important because the temperature of the hottest spot in the pile is one of the limiting factors in determining the maximum power at which a pile can be operated. However, the higher the temperature of the emerging cooling stream, the more efficient can be the t… more
Date: February 14, 1946
Creator: Cahn, Albert S., Jr.
Partner: UNT Libraries Government Documents Department
open access

Pile Heat Exchanger Calculations

Description: Abstract. Some idealized calculations (CP-807) relating to the design of heat exchangers for minimum holdup of pile liquid are presented in compact form to facilitate quick estimates. Their use is illustrated by application to a falling film type exchanger.
Date: February 14, 1945
Creator: Young, Gale Jay
Partner: UNT Libraries Government Documents Department
open access

V. Multiplying Lattices of the Hollow Type

Description: A two-group approximation of the fission ratios and Pu production in an infinite hollow matrix is developed
Date: February 14, 1951
Creator: Brown, Harold
Partner: UNT Libraries Government Documents Department
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Chemistry Division Quarterly Progress Report for Period Ending June 30, 1951

Description: Quarterly technical report including reports on chemistry of source, fissionable, and structural elements, nuclear chemistry, radio-organic chemistry, chemistry of separations processes, chemical physics, radiation chemistry, and instrumentation of the Chemistry Division of the Oak Ridge National Laboratory (ORNL). [From Abstract]
Date: February 14, 1952
Creator: Lind, S. C.; Boyd, G. E. & Bredig, M. A.
Partner: UNT Libraries Government Documents Department
open access

Reconciliation Report

Description: Reconciliation report with an ending account balance of $1,076.54 reconciled for the period ending on January 31, 2002.
Date: February 14, 2002
Partner: UNT Libraries Special Collections
open access

Gas laser cells: stress analysis of cylindrical cells with radial injection of electrons

Description: The problem is to develop a design procedure for pressurized cylindrical excimer laser cells. Excitation of the pressurized laser gas is by a short pulse of high energy electrons injected through the cell wall. In traversing the wall, the electrons lose energy and heat the wall. Because of rapid gas heating, a shock wave is generated which produces an additional load on the wall. Selected for analysis is a simple, conservative model of a cylindrical cell pressurized to double the shock pressure… more
Date: February 14, 1975
Creator: Lai, W.
Partner: UNT Libraries Government Documents Department
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Synchrotron injectors based on high charge state ion sources

Description: The performance of any injector contemplated to replace the electrostatic tandem accelerators some time in the future should evidently match or surpass the characteristics of the tandems. It is a fortunate coincidence that the performance of the BNL tandem satisfies in most respects the requirements of the proposed collider, although originally tandems were not built with this application in mind. Requests for heavy ion beams with parameters suitable for injection into the rings of a heavy ion … more
Date: February 14, 1990
Creator: Prelec, K.
Partner: UNT Libraries Government Documents Department
open access

ATD user's manual. [For unpacking, scaling, plotting, filtering, and statistical analysis of data]

Description: The ATD code is a multi-purpose code which reduces data files produced by a digitizer. It contains all of the features for the basic unpacking, scaling, and plotting of digitized data files. More advanced capabilities are also available. Digital filtering, spectral analysis, and statistical analysis, among others, allow the engineer the capability to analyze and display time history data. In contrast to codes such as DYMEC, the data files are typically of high frequency and short duration, repr… more
Date: February 14, 1977
Creator: Shannon, A. W.
Partner: UNT Libraries Government Documents Department
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A Possible stopping pi- beam for cancer therapeutics

Description: In this report an estimate of the pion dose from a stopping {pi}{sup -} beam is made. Dose rates of 15 krad {center_dot} gram/min are obtained. These are adequate for clinical use.
Date: February 14, 1972
Creator: Awschalom, M.
Partner: UNT Libraries Government Documents Department
open access

Critical Density Interaction Studies

Description: Experiments have been performed to study the propagation of intense laser pulses to high plasma densities. The issue of self-focusing and filamentation of the laser pulse as well as developing predictive capability of absorption processes and x-ray conversion efficiencies is important for numerous programs at the Laboratory, particularly Laser Program (Fast Ignitor and direct-drive ICF) and D&NT (radiography, high energy backlighters and laser cutting). Processes such as resonance absorptio… more
Date: February 14, 2001
Creator: Young, P.; Baldis, H. A.; Cheung, P.; Rozmus, W.; Kruer, W.; Wilks, S. et al.
Partner: UNT Libraries Government Documents Department
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Direct Characterization of the Electronic Structure of Shocked and Heated Materials

Description: Detailed knowledge of how materials respond to strong shocks or other extreme conditions on rapid timescales (such as laser heating) are required to support LLNL missions of national security and stockpile stewardship. This project started in FY01 to develop and demonstrate a new pump-probe characterization capability for investigating ultrafast changes in the chemical and electronic structure of materials under extreme conditions with picosecond time resolution. The LLNL COMET (Compact Multipu… more
Date: February 14, 2004
Creator: Nelson, A. J.; Dunn, J.; van Buuren, T. W. & Smith, R. F.
Partner: UNT Libraries Government Documents Department
open access

APDS: Autonomous Pathogen Detection System

Description: An early warning system to counter bioterrorism, the Autonomous Pathogen Detection System (APDS) continuously monitors the environment for the presence of biological pathogens (e.g., anthrax) and once detected, it sounds an alarm much like a smoke detector warns of a fire. Long before September 11, 2001, this system was being developed to protect domestic venues and events including performing arts centers, mass transit systems, major sporting and entertainment events, and other high profile si… more
Date: February 14, 2002
Creator: Langlois, R. G.; Brown, S.; Burris, L.; Colston, B.; Jones, L.; Makarewicz, T. et al.
Partner: UNT Libraries Government Documents Department
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Final report: flight dynamics and impact characteristics of thin flyer plates driven by laser-and electrically-produced plasmas

Description: The scope of the project was to conduct experimental and computer modeling studies of the launching, flight characteristics and impacts of thin flyer plates driven by laser ablation under drive conditions where the plate remains a solid and retains its strength. Motivation for the work was to provide the scientific underpinnings for advanced development work on new detonators that will be needed within the next ten years for use in the Laboratory's national security mission. Areas of study were… more
Date: February 14, 2001
Creator: Lee, R. S.; Colvin, J.; Frank, A.; Fried, L. & Reaugh, J.
Partner: UNT Libraries Government Documents Department
open access

ViSUS: Visualization Streams for Ultimate Scalability

Description: In this project we developed a suite of progressive visualization algorithms and a data-streaming infrastructure that enable interactive exploration of scientific datasets of unprecedented size. The methodology aims to globally optimize the data flow in a pipeline of processing modules. Each module reads a multi-resolution representation of the input while producing a multi-resolution representation of the output. The use of multi-resolution representations provides the necessary flexibility to… more
Date: February 14, 2005
Creator: Pascucci, V
Partner: UNT Libraries Government Documents Department
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FIND: Fluorescence Imaging in the Nuclear Domain

Description: This document examines the potential use of Thomson-Radiated Extreme X-ray (T-REX) sources for Fluorescence Imaging in the Nuclear Domain (FIND) of special nuclear materials. A back-of-the-envelope, relative comparison of T-REX sources vs. Bremsstrahlung sources for this application is presented. It is estimated that use of T-REX for FIND could be as much as 5 x 10{sup 12} more effective than the use of anode based sources. Furthermore it is estimated that illumination of samples of dimension 1… more
Date: February 14, 2005
Creator: Barty, C J
Partner: UNT Libraries Government Documents Department
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