This Number System Cross Reference Guide constitutes a ready reference for programing the MCS-8 Microcomputer or designing logic systems. Columns give the number equivalents of decimal, binary, octal, and hexidecimal systems for decimal numbers zero through 255, as well as a corresponding teletype character opposite each row of equivalent numbers. (RWR)

The void swelling of HPV and V-1 Ti has been investigated by irradiating the samples side by side with 3-MeV /sup 51/V/sup +/ ions to damage doses between 2.4 and 54 dpa at a temperature of 700/sup 0/C. Examination of the irradiated samples by transmission electron microscopy revealed that voids and dislocation networks had formed at 2.4 dpa in HPV and that swelling increased less than linearly with dose. In contrast, V-1 Ti showed negligible swelling even at 54 dpa. The swelling resistance of V-1 Ti to large doses is believed to be, at least in part, due to irradiation-induced precipitation.

The energy production and consumption data show a pattern of increased reliance on crude oil and natural gas as primary energy sources. Early production of coal diminished as natural gas became readily available. Hydropower has been developed at several multipurpose dam sites, but is less than one percent of the total Texas electric power capacity. Power plants have been fired primarily with natural gas, but recent developments have caused the substitution of fuel oil, and plans for new capacity include both nuclear and coal fired units. The trends in consumption of energy show several important factors in the economics of energy. Residential use of electricity has grown rapidly and was accompanied by large increases in per capita home heating and air conditioning and electrical appliances, and by a declining real price of electricity. Texas consumers also greatly increased their per capita use of gasoline during the 1950-1973 period with increases in the per capita ownership of automobiles and near constant real prices for gasoline. Both trends (electricity and gasoline use per capita) grew at a faster rate in Texas than for the U.S. The concentration of petroleum refining and chemical manufacturing industries in Texas has made these industries and the …

The Fermi secondary pump is a centrifugal single stage design. The pump had been operated more than 42,000 hours between 450 and 800/sup 0/F. Sodium was drained from the pump in 1973 and the system was back filled with carbon dioxide. The pump was fabricated for 2.25 Cr-1 Mo Croloy steel. Prior to cleaning the pump was inerted and heated with 150/sup 0/F nitrogen using the pump casing as the containment vessel. The water-vapor-nitrogen process was used in three increasing stages of water concentration. The hydrogen concentration in the discharge line was followed as an indicator of the sodium-water reaction rate. Upon completion of the hydrogen evolution, the pump was rinsed several times with hot water. Six pounds of sodium were removed from the pump during a process cycle of 79 hours including rinsing. The maximum pump temperature recorded was 175/sup 0/F with no variation exceeding 10/sup 0/F. The hydrogen concentration in the effluent provided a very satisfactory index for control of the reaction by adjustment of the water-vapor concentration feed to the system. Rinsing effectiveness was limited by a pool of water in the volute that was not drainable with the available system hook up. Sodium and its compounds …

Round-wire, laminated flat cables provide an additional manufacturing capability that is particularly suited for development applications and few-of-a-kind production. These laminated cables do not require the special tooling that is necessary for molded cables; therefore, cost and lead time are reduced. Layup, lamination, and contouring techniques were developed for complex cable configurations, including small-radius bends and multiple breakouts.

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Smooth weld tip and anvil surfaces are recommended; electrical discharge machining (EDM) surface finishes damage weld materials. Copper-to-aluminum samples showed no weld degradation following environmental tests. Materials must be of similar hardness to achieve high quality welds, and soft materials are sensitive to machine parameter changes.

The mechanical, physical, and thermal properties of a glass microballoon-filled polybenzimidazole resin have been measured for test specimens molded by three manufacturing processes. The material, Imidite X386, has been shown to be a high strength, thermally stable structural foam.

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Electroless coatings of nickel and copper from five electroless solutions were deposited on polyimide. Thicknesses approaching 90 microinches (2.3 micrometers) could be obtained but increasing the coating thickness beyond 90 microinches could only be achieved by electroplating. Four etching solutions for polyimides were investigated to determine their effect on the adhesion of the electroless coating to the polyimide.

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Studies were conducted on three TDI polyurethane foam materials to improve production yields of molded-to-size parts. The effects of changes in cell. stabilizers, emulsifiers, catalysts, and the blowing agent were investigated. To evaluate formulation modifications, tests were performed to determine compressive strength, foam reactivity, and free-rise density. Changes in the visual appearance were also documented. Silicone surfactants were found to be superior to organic emulsifiers. In addition, an increase in water content produced parts rated superior to those produced by using the standard formulation for one material, Rigifoam 6003-2.5.

A forming station has been designed and fabricated. The forming stations allow automatic control of the pressure, temperature, vacuum, and cooling cycles required for pressure/vacuum dies used to form or bond aluminum-Mylar laminate, Mylar films, and polycarbonate sheets.

The intent of this design guide is to provide the engineer with the necessary information to produce a design for a workable installation. It contains a project scope, specific design information, and project control procedures. The desired process is to flash the geothermal brine to steam in three or four stages and transfer the steam heat energy to the working fluid circulating in closed loop. (MHR)

Patterns for the development of geothermal resources in the Imperial Valley are analyzed, with particular consideration of corporate behavior in geothermal development. Actions of the companies were examined over a period of time to discover patterns of involvement, investment, and likelihood of further development. Discussion is presented under the following section headings: research organization; legal aspects; characteristics of development; location of geothermal leases; analysis of major leaseholders; and findings and conclusions. The addendum is entitled Federal Land Lease Sales: An analysis in terms of Lease Acquisition Patterns. The three appendices are: research methodology; a methodological note on the maps; and exploratory drilling sites. (JGB)

Pressure-composition isotherms are given for the following systems: FeTi-H/sub 2/ (0, 30, 40, 55, 70/sup 0/C); Fe/sub 0/ /sub 95/V/sub 0/ /sub 05/Ti/sub 1/ /sub 0/-H/sub 2/ (40/sup 0/C); Fe/sub 1/ /sub 0/Cu/sub 0/ /sub 1/Ti/sub 1/ /sub 0/-H/sub 2/ (40/sup 0/C); Fe/sub 0/ /sub 9/Mo/sub 0/ /sub 1/Ti-H/sub 2/ (40/sup 0/C); two (Fe, Cr, Ti)-H/sub 2/ (40/sup 0/C); three (Fe, Mn, Ti)-H/sub 2/ (40, 70/sup 0/C); Fe/sub 0/ /sub 8/Mn/sub 0/ /sub 2/Ti-H/sub 2/ (61/sup 0/C); Fe/sub 0/ /sub 9/Mn/sub 0/ /sub 1/Ti/sub 1/ /sub 0/-H/sub 2/ (30, 40, 50/sup 0/C); CoTi-H/sub 2/ (123, 138, 154/sup 0/C); Mg/sub 2/Al/sub 3/-H/sub 2/ (302, 326/sup 0/C); LaNi/sub 5/-H/sub 2/ (40/sup 0/C); and La/sub 4/ /sub 75/Pt/sub 0/ /sub 25/-H/sub 2/ (40/sup 0/C).

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This report presents the results of analyses of several hundred Pacific Hake, Merluccius productus, for zinc (Zn), zinc-65 ({sup 65}Zn), cadmium (Cd), and mercury (Hg). The fish were collected off the coast of the western United States in 1969--1972. In addition, some data from mercury analyses of fresh and seawater samples collected in 1970--1973 are presented. The contents of this report were used in the author's doctoral thesis. A majority (80%) of the hake samples were collected during July and August 1969, from 32{degrees}N to 48{degrees}N along the western coast of the United States. Most of the samples of Pacific Hake, Merluccius productus, were collected by Russian scientists on board PROFESSOR DERYUGIN, in collaboration with the US Bureau of Commercial Fisheries (now, National Marine Fisheries Service (NMFS)) in July and August 1969. Additional samples were collected by NMFS vessels, JOHN N. COBB, BARON AND COMMANDO, and by the Oregon State University of Oceanography CAYUSE and YAQUINA in 1969--1972. Location of sampling stations and a summary of data collected are presented. 5 refs., 2 figs., 5 tabs.

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