A preliminary model of photosynthesis and growth of field crops was developed to assess the effects of gaseous pollutants, particularly airborne sulfur compounds, resulting from energy production from geothermal resources. The model simulates photosynthesis as a function of such variables as irradiance, CO/sub 2/ diffusion resistances, and internal biochemical processes. The model allocates the products of photosynthesis to structural (leaf, stem, root, and fruit) and storage compartments of the plant. The simulations encompass the entire growing season from germination to senescence. The model is described conceptually and mathematically and examples of model output are provided for various levels of pollutant stress. Also, future developments that would improve this preliminary model are outlined and its applications are discussed.

The application of a solar energy system to the Lawrence, Kansas alfalfa dehydration plant, owned by the Western Alfalfa Corporation, is an attractive opportunity to demonstrate the feasibility of using solar energy to supply industrial process heat. The work undertaken for this project is reviewed. The design parameters of the dehydrator, including the energy consumed by the plant, the airflow requirements of the dehydrator, and the interface between the dehydrator and the solar array are discussed. The design of the collector array, the selection of solar collectors, the calculation of collector areas for the array, and the simulations of the system performance are addressed. Discussions of the detailed engineering drawings and specifications of the array construction, duct work, air handling equipment, system controls, and data monitoring, and acquisition systems are presented. The results of the contractors' bids based on these drawings and specifications are given. An economic analysis of the solar system using the Lawrence Livermore Laboratory format is presented. Finally, the impact of the solar system on the process energy requirements and on the operation of the plant are discussed. (WHK)

This manual provides rough guidelines to aid a programer in installing ADBMS at a computer installation. ADBMS is a set of subroutines which together form a nucleus of a CODASYL-based data base management system. The use of this system is explained in detail in ''ADBMS Users Guide'' by E.W. Berss, Lawrence Livermore Laboratory, Feb. 1977.

The status of a program to determine the feasibility of a lithium--air battery (or an analog) as an automotive power source is summarized. Anticipated performance of characteristics (including efficiency and voltage) of the battery and the lithium recycling process are described. A calcium/aqueous-electrolyte combination was discovered which shows electrode behavior similar to that of Li. 2 figures, 2 tables.

Detailed neutronics and photonics calculations have been performed for analyzing prompt and residual radiations and required shielding associated with the design of a laser-fusion facility with a nominal yield of 10/sup 19/ neutrons per D--T burn pulse. The standard Livermore Monte Carlo codes and nuclear data cross section libraries were used in calculations. The Bateman equation was used to calculate the accumulation and decay of radionuclide chain products. A number of activation sensitivity experiments were conducted and the results were found to be in very good agreement within 10 percent of those calculated. It has been found that neutron yields of 2 x 10/sup 19/ per day can be conducted continuously if the reactor chamber is Kevlar-epoxy or silica, the primary shield is 0.60-m of water immediately on the chamber, and the building concrete is 1.80 m thick. These precautions result in dose equivalents below the primary protection limits inside the target room after a few hours of cool-down per each 10/sup 19/ pulse, 10 percent of the primary protection limits immediately outside the target room, and 1 percent of the natural background level at the nearest site boundary.

At normal incidence, the back scattered, forward scattered and 90/sup 0/ scattered cross sections of the beam were measured at 24 GHz for air and nitrogen at 500 torr pressure. For a single pulse, the measured radius of the beam was 4.3 mm at Z = 80 cm, whereas in a burst the radius decreased to 2.5 mm for the fifth pulse. This corresponds to a density reduction of a factor of 5 and corresponds to a channel temperature of 1200/sup 0/C. Within experimental error, the observed cross sections were those to be expected from a metal rod of these dimensions. There was no evidence of any enhancement in cross section at long times as might be expected from a hydrodynamic channel instability. However, receiver noise would have masked any fluctuations present. The cross sections were also measured with the microwave beam forming an angle of 10/sup 0/ with the electron beam. The backscatter cross section and the bistatic cross section to a second antenna forming an angle of 10/sup 0/ with the beam was also measured. In air, the bistatic and monostatic cross sections were approximately 10 db higher than expected from the beam size measurement, i.e, the returns …

Experimental research in high energy physics is summarized. (JFP)

The detailed engineering design of a solar array applied to the preheating of both combustion and excess air for a rotary alfalfa dehydrator is reported. The alfalfa dehydration process and the design parameters of rotary dehydrator are described, including the energy consumed by the plant, the airflow requirements of the dehydrator, and the interface between the dehydrator and the solar array. The design of the collector array is discussed, including the solar collector selection, the calculation of collector areas, and the simulations of the system performance. Discussions of the detailed engineering drawings and specifications of the array construction, duct work, air handling equipment, system controls, data monitoring and acquisition systems, and the results of the contractors' bids are presented. An economic analysis is given of the solar system using the Lawrence Livermore Laboratory format. The impact of the solar system on the process energy requirements and on the operation of the plant are discussed. Additional information and supporting calculations for material covered in the text of the report are contained in the appendices. (MHR)

Lists of documents exchanged in 1976 under agreement between the U.S. Nuclear Regulatory Commission's Office of Nuclear Regulatory Research and the governments of France, Federal Republic of Germany, and Japan are presented. In 1976 the NRC received 25 reports from France, 74 from F.R. Germany, and 39 from Japan, and in return sent 119 U.S. reports to France, 154 to F.R. Germany, and 155 to Japan.

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The City of Miamisburg plans to modify two existing small ponds just west of Mound Laboratory in the Community Park. The north pond will be deepened and made into a solar energy pond to heat a bath house and swimming pool, and the south pond will be deepened and made into a fishing pond. Because the sediment in both ponds contains small amounts of plutonium and will be moved during the modifications, this work has been reviewed for potential health and safety impacts. This analysis covered the health and safety of the public on a long-term basis and of the workers involved in the short-term modifications. The doses to man, both long and short term, were calculated for all routes of entry into the body including inhalation, ingestion, and absorption where applicable. In the preparation of this analysis, very conservative assumptions were utilized. The conclusion in all cases was the same: the potential radiation exposures represent no significant risk to the health and safety of the construction workers or the park visitors. The improvements to be made in the park involve mixing and dilution of the existing sediments with other soils, providing further reductions in the calculated radiation doses to …

Field-ionization relative sensitivities were determined at an ion-source temperature of ca. 270/sup 0/C for 16 saturates and naphthenes in 18 mixtures containing only saturated and naphthenic hydrocarbons, and for 14 saturates and naphthenes in 5 mixtures containing aromatic hydrocarbons. Variations in the relative gram sensitivities for 6 saturates in the presence of ethylbenzene (3 mixtures) and in the absence of ethylbenzene (2 mixtures) at an ion-source temperature of ca. 100/sup 0/C were compared with literature values for similar mixture compositions determined at an ion-source temperature of ca. 120/sup 0/C.