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Measuring dirt on photovoltaic modules

Description: Soil accumulation has been the most significant factor in the degradation of the output of photovoltaic modules used in experimental solar power generating systems. One method of measuring dirt accumulation and the subsequent power loss is to return photovoltaic modules to the laboratory for thorough examination. The use of a Glossmeter as a practical alternative to laboratory examination in making quantitative measurements of dirt accumulation on PV modules is described. Of particular value fo… more
Date: March 21, 1979
Creator: Murphy, E B & Forman, S E
Partner: UNT Libraries Government Documents Department
open access

Optimum frequencies for regional detection of cavity-decoupled explosions

Description: The natures of compressional (P) waves that originate in the crust, propagate in the crust and upper mantle, and are observed as Pg, Pn, and anti P waves at regional distances are examined. The discussion includes the observed variations of amplitude with epicentral distance for these waves as well as an estimate of values for the specific dissipation function Q/sub ..cap alpha../ in different regions. Studies were made on theoretical source and propagation functions for direct, reflected, and … more
Date: March 21, 1979
Creator: Rodean, H.C.
Partner: UNT Libraries Government Documents Department
open access

Reactor safety. Quarterly technical progress report, October--December 1977. [LMFBR]

Description: The objectives of the program are to conduct tests that will characterize the behavior of sodium oxide, fuel, fission product, and other aerosols as they might be generated by various postulated LMFBR accidents; determine by analysis and confirm by experiment the generation and transport of these aerosols with respect to source (location, type, and configuration), for the entire course of events associated with real and hypothetical accident conditions; and conduct tests that will determine the… more
Date: March 21, 1978
Partner: UNT Libraries Government Documents Department
open access

Data Director editor user's manual. [EDIT]

Description: EDIT allows the user to edit or create text, either interactively or in the batch mode. The text may be a source program, program data, or documents. Special provisions permit the creation or editing of APT source-language programs. EDIT processes ASCII files from any accessible Data Director library and outputs files to any such library as specified by the user.
Date: March 21, 1977
Creator: McGoldrick, P.
Partner: UNT Libraries Government Documents Department
open access

LMFBR safety. 4. Review of current issues and bibliography of literature (1974--1975)

Description: This report discusses the current status of liquid-metal fast breeder reactor (LMFBR) development and one of the principal safety issues, a hypothetical core-disruptive accident (HCDA). Bibliographic information on worldwide LMFBRs relative to the development of the breeder reactor as a safe source of nuclear power is presented for the period 1974 through 1975. The bibliography consists of approximately 1554 abstracts covering early research and development and operating experiences leading up … more
Date: March 21, 1977
Creator: Buchanan, J. R. & Keilholtz, G. W.
Partner: UNT Libraries Government Documents Department
open access

Preliminary three-dimensional potential flow simulation of a five-liter flask air injection experiment

Description: The preliminary results of an unsteady three-dimensional potential flow analysis of a five-liter flask air injection experiment (small-scale model simulation of a nuclear reactor steam condensation system) are presented. The location and velocity of the free water surface in the flask as a function of time are determined during pipe venting and bubble expansion processes. The analyses were performed using an extended version of the NASA-Ames Three-Dimensional Potential Flow Analysis System (POT… more
Date: March 21, 1977
Creator: Davis, J. E.
Partner: UNT Libraries Government Documents Department
open access

Determination of /sup 232/U daughter products released from HTGR fuel during refabrication. Part 2

Description: During the heat treatment step of High Temperature Gas-Cooled Reactor (HTGR) fuel beads, the /sup 233/U-loaded fuel beads are exposed to temperatures as high as 1700/sup 0/C. Since /sup 233/U fuel beads unavoidably contain a small percentage of /sup 232/U, decay products of /sup 232/U might be released during the heat treatment step. To avoid shielding requirements, experiments were conducted using /sup 232/Th-loaded fuel beads rather than /sup 232/U-loaded fuel beads. Decay products of /sup 23… more
Date: March 21, 1975
Creator: Bencini-Tibo, L. F.; Horton, J. R. & Kelley, D. F.
Partner: UNT Libraries Government Documents Department
open access

Evaluated neutron reaction data for uranium 238

Description: Methods used to obtain evaluated neutron interaction and photon production data for /sup 238/U are described. (auth)
Date: March 21, 1973
Creator: Howerton, R.J. & MacGregor, M.H.
Partner: UNT Libraries Government Documents Department
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