Search Results

open access

1-/sup 11/C-D-glucose and related compounds

Description: The novel compounds 1-/sup 11/C-D-glucose, 1-/sup 11/C-D-mannose, 1-/sup 11/C-D-galactose, 2-/sup 11/C-D-glucose, 2-/sup 11/C-D-mannose and 2-/sup 11/C-D-galactose which can be used in nuclear medicine to monitor the metabolism of glucose and galactose can be rapidly prepared by reaction of the appropriate aldose substrate with an alkali metal /sup 11/C-labeled cyanide followed by reduction with a Raney alloy in formic acid.
Date: January 26, 1982
Creator: Shiue, Chyng-Yann & Wolf, Alfred P.
open access

Alternative theories of oil-inventory management and government policy options

Description: Four alternative theories of oil inventory management and their implication for the level of private petroleum stockpiling are explored. The assumptions made were: that the product market for oil is competitive and that the capital market through which investments in oil stockpiles are financed is efficient. It is assumed that these conditions are expected to prevail even in the event of a supply interruption. These assumptions constitute the benchmark theory of oil inventory management. Variat… more
Date: April 26, 1982
Creator: Read, J.
open access

Bag-out material handling system

Description: A bagging device for transferring material from a first chamber through an opening in a wall to a second chamber includes an outer housing communicating with the opening and having proximal and distal ends relative to the wall. An inner housing having proximal and distal ends corresponding to those of the outer housing is mounted in a concentrically spaced, sealed manner with respect to the distal end of the outer housing. The inner and outer housings and mounting means therebetween define an a… more
Date: February 26, 1982
Creator: Brak, S.B.
open access

Bag-out material-handling system

Description: A bagging device for transferring material from a first chamber through an opening in a wall to a second chamber includes an outer housing communicating with the opening and having proximal and distal ends relative to the wall. An inner housing having proximal and distal ends corresponding to those of the outer housing is mounted in a concentrically spaced, sealed manner with respect to the distal end of the outer housing. The inner and outer housings and mounting means therebetween define an a… more
Date: February 26, 1982
Creator: Brak, Stephen B. & Milek, Henry F.
open access

Cementation process for minerals recovery from Salton Sea geothermal brines

Description: The potential for minerals recovery from a 1000-MWe combined geothermal power and minerals recovery plant in the Salton Sea is examined. While the possible value of minerals recovered would substantially exceed the revenue from power production, information is insufficient to carry out a detailed economic analysis. The recovery of precious metals - silver, gold, and platinum - is the most important factor in determining the economics of a minerals recovery plant; however, the precious metals co… more
Date: January 26, 1982
Creator: Maimoni, A.
open access

Circular free-electron laser

Description: A high efficiency, free electron laser is described utilizing a circular relativistic electron beam accelerator and a circular whispering mode optical waveguide for guiding optical energy in a circular path in the circular relativistic electron beam accelerator such that the circular relativistic electron beam and the optical energy are spatially contiguous in a resonant condition for free electron laser operation. Both a betatron and synchrotron are disclosed for use in the present invention. … more
Date: January 26, 1982
Creator: Brau, Charles A.; Kurnit, Norman A. & Cooper, Richard K.
open access

Communicating between the Apple and the Wang

Description: This manual covers what the beginner needs to know in order to transfer files between an Apple's Microcomputer and a Wang's OIS Word Processor. We have also tried to indicate where the experienced user might want to look for additional details. We cover the use of Apple Writer )(, VisiTerm, VisiCalc, and EasyWriter Professional. For us, the two most useful connections are from Applewriter to Wang and from Visicalc to Wang. From Wang to Apple Writer via Visiterm may have some value. Files can be… more
Date: October 26, 1982
Creator: Barton, G.W., Downey, R.
open access

Development of advanced technologies for photochemical tritium recovery. Bi-quarterly progress report, January 1, 1982-June 30, 1982

Description: Mixtures of CTCl/sub 3//CDCl/sub 3/ were successfully detritiated by 12..mu.. laser multiple-photon dissociation. The lower limit of the T/D enrichment factor was determined to be approx. 165. Additional studies concerning the effects of pulse energy, irradiation geometry and sample pressure were conducted. Characterization of both untuned and tuned NH/sub 3/ laser configurations were completed. Further laser studies considered implementation of a short pulse CO/sub 2/ laser pump source for eit… more
Date: July 26, 1982
Creator: Aldridge, F. T.; Herman, I. P.; Magnotta, F.; Maienschein, J. L.; Marling, J. B. & Young, R. H.
open access

Doped semiconductor material and method for doping same

Description: A method for doping semiconductor material and the semiconductor produced by the method are described. An interface is established between a solid electrolyte and a semiconductor to be doped. The electrolyte is chosen to be an ionic conductor of the selected impurity and the semiconductor material and electrolyte are jointly chosen so that any compound formed from the impurity and the semiconductor will have a free energy no lower than the electrolyte. A potential is then established across the… more
Date: January 26, 1982
Creator: Yang, C.Y.
open access

Electron-beam magnetic switch for a plurality of free-electron lasers

Description: Apparatus for forming and utilizing a sequence of electron beam segments, each of the same temporal length (substantially 15 nsec), with consecutive beams being separated by a constant time interval of the order of 3 nsec is described. The beam sequence is used for simultaneous inputs to a plurality of wiggler magnet systems that also accept the laser beams to be amplified by interaction with the co-propagating electron beams. The electron beams are arranged substantially in a circle to allow p… more
Date: January 26, 1982
Creator: Schlitt, Leland G.
open access

Executive committee report: geotechnical instrumentation working group meeting

Description: Responding to the widespread need for the geotechnical community to discuss instrumentation for nuclear waste repositories, a meeting was held December 2 and 3, 1981, in Denver, Colorado. This report gives the group's consensus recommendations to aid in making decisions for development of instrumentation for future repository work. The main conclusions of the working group meeting were as follows: (1) monitoring of geotechnical parameters in nuclear waste repositories will be necessary to meet … more
Date: April 26, 1982
Creator: Wilder, D. G.; Rogue, F.; Beloff, W. R.; Binnall, E. & Gregory, E. C.
open access

Free-electron-laser design for laser amplification

Description: A method for laser beam amplification by means of free electron laser techniques is described. With wiggler magnetic field strength B/sub w/ and wavelength lambda/sub w/ = 2..pi../k/sub w/ regarded as variable parameters, the method(s) impose conditions such as substantial constancy of B/sub w//k/sub w/ or k/sub w/ or B/sub w/ and k/sub w/ (alternating), coupled with a choice of either constant resonant phase angle or programmed phase space bucket area.
Date: January 26, 1982
Creator: Prosnitz, D. & Szoke, A.
open access

Fusion technology status and requirements

Description: This paper summarizes the status of fusion technology and discusses the requirements to be met in order to build a demonstration fusion plant. Strategies and programmatic considerations in pursuing engineering feasibility are also outlined.
Date: January 26, 1982
Creator: Thomassen, K.I.
open access

Geothermal district heating system feasibility analysis, Thermopolis, Wyoming

Description: The purpose of this study is to determine the technical and economic feasibility of constructing and operating a district heating system to serve the residential, commercial, and public sectors in Thermopolis. The project geothermal resource assessment, based on reviews of existing information and data, indicated that substantial hot water resources likely exist in the Rose Dome region 10 miles northeast of Thermopolis, and with quantities capable of supporting the proposed geothermal uses. Pre… more
Date: April 26, 1982
Creator: Goering, Steven W.; Garing, Kenneth L.; Coury, Glenn & Mickley, Michael C.
open access

Helium-to-neon modification for a DuPont 120SSA or 24-120 leak detector

Description: When helium leak detecting is hindered by a system or atmosphere saturated with helium, leak checking can be continued by modifying the DuPont 120SSA/24-120 Mass Spectrometer Leak Detector to detect neon. Although DuPont markets a three gas leak detector (helium, neon and argon), the DuPont 120SSA/24-120 is convertible to neon by simply changing the magnet and retuning for neon peak. The sensitivity is 2 x 10/sup -9/ Atm/cc/sec/division neon. If an increase in sensitivity is desired, throttle d… more
Date: August 26, 1982
Creator: Juravic, F.
open access

Investigation into the feasibility of wind as an alternate energy resource at selected North Georgia sites

Description: Anemometers were placed at four selected sites in North Georgia during the period July, 1980, to June, 1982. Regular wind speed readings were taken using accumulating recorders and average daily wind speeds calculated for each location. Three wind speed categories were determined: (a) average below 7 mph; (b) average between 7 and 25 mph; (c) average above 25 mph. One site was abandoned after seven months due to lack of expected wind; another site was closed after 4.5 months due to continuing e… more
Date: October 26, 1982
Creator: Brock, D.L.
open access

Laser-beam-alignment system

Description: A plurality of pivotal reflectors direct a high-power laser beam onto a workpiece, and a rotatable reflector is movable to a position wherein it intercepts the beam and deflects a major portion thereof away from its normal path, the remainder of the beam passing to the pivotal reflectors through an aperture in the rotating reflector. A plurality of targets are movable to positions intercepting the path of light traveling to the pivotal reflectors, and a preliminary adjustment of the latter is m… more
Date: February 26, 1982
Creator: Kasner, W. H.; Racki, D. J. & Swenson, C. E.
open access

Mechanism of catalytic gasification of coal char. Quarterly technical report No. 5, October 1 to December 31, 1981

Description: The purpose of this study is to determine the mechanisms involved in the catalytic reactions of coal char and to identify the specific reaction steps and the parameters that control the catalytic process. The mode of action of the catalyst can be viewed in two ways. In one view, the catalyst participates in a reduction/oxidation cycle. The initial reaction between the carbon and the catalyst reduces the KOH to potassium accompanied by the gaseous reactant (H/sub 2/O or CO/sub 2/), producing fur… more
Date: February 26, 1982
Creator: Wood, B. J.; Sancier, K. M.; Sheridan, D. R.; Chan, B. L. & Wise, H.
open access

Method for spectrochemical analysis using time-resolved laser-induced breakdown. [Patent application]

Description: A method for real-time elemental analysis using laser-induced breakdown of the material under investigation and spectroscopic analysis of the light emitted from the plasma consequently formed is described. By delaying the observation of the emitted radiation, the unwanted background continuum and line spectra from excited ionic species can be rendered unimportant relative to the excited atomic line spectra, thereby producing sharp, well-defined characteristic identifying atomic spectral feature… more
Date: January 26, 1982
Creator: Loree, Thomas R. & Radziemski, Leon J.
open access

Method of sputter etching a surface

Description: A surface is textured by co-sputter etching with a target and a seed material with the surface at a pre-selected temperature. By pre-selecting the temperature of the surface while sputter etching, it is possible to predetermine the reflectance properties of the etched surface. The surface may be textured to absorb sunlight efficiently and have minimal emittance in the infrared region so as to be well-suited for use as a solar absorber for photothermal energy conversion.
Date: February 26, 1982
Creator: Henager, C.H. Jr.
open access

Multifrequency, single-pass free-electron laser. [Patent application]

Description: A method for simultaneous amplification of laser beams with a sequence of freqeuncies in a single pass, using a relativistic beam of electrons grouped in a sequence of energies corresponding to the sequence of laser beam frequencies is described. The method allows electrons to pass from one potential well or bucket to another adjacent bucket, thus increasing efficiency of trapping and energy conversion.
Date: January 26, 1982
Creator: Szoke, A. & Prosnitz, D.
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