Quarterly magazine of the Texas Sea Grant College Program discussing news, events, and other information related to the Texas marine environment.

Newsletter of the Texas Industrial Commission discussing activities of the Commission as well as other news, events, and announcements related to industrial development in the state.

Magazine discussing natural resources, parks, hunting and fishing, and other information related to the outdoors in Texas.

Monthly newsletter of the High Plains Underground Water Conservation District No. 1, discussing the field of underground water. Topics include profiles of water conservation research, annual pre-plant soil moisture survey data, annual Winter Water Level measurement data, and information about the latest water conservation tips.

"This little friend has been created by the Federal Energy Administration to tell kids about energy and how to use it wisely" (p. i).

Report studying the water estuaries of Texas to properly manage and utilize these resources. Contains maps, data-collection methods, tables, and more.

Newsletter issued by the Advisory Council for Technical-Vocational Education in Texas discussing news, events, and other relevant information related to technical and vocational education for adults in Texas.

The splitting of interstitial loops formed by irradiation is considered in detail. It is shown that they may split to form obtuse--angled single shear faults on the intersecting (111) planes. A detailed description of the splitting is given in which the interstitial Frank loop is viewed as being made up of perfect dislocation loop and two shears. The detailed description is then considered in the context of the formation of complex loops as are observed in quenching and irradiation studies. Experimentally observed geometries are explained viz, triangular loops within hexagonal ones etc. The nucleation of a DC' loop in complex interstitial loop formation is shown to be feasible. DC' has the magnitude of a perfect dislocation loop and encloses an intrinsic shear. (auth)

It was shown that by the use of ion beam probing system with the proper detectors experimental expressions can be obtained for v/sub o/ = v/sub o/ (x,y,z) and v/sub d/ = v/sub d (x,y,z). It was also shown that by taking the curl of the difference between the equations, the magnetic field and consequently the plasma current density distribution can be evaluated.

A computer routine, the Transmissivity Iterative Routine (TIR), has been developed for calculating the hydraulic conductivity distribution in highly heterogeneous aquifers where characterization by field measurement methods alone would be prohibitive in cost. The routine yields the two-dimensional distribution of hydraulic conductivity averaged over the aquifer thickness. The agreement between the calculated and actual average conductivity is dependent on the degree to which the groundwater system satisfies the Dupuit assumption. The program was written for an interactive computer system with a light-pen, CRT display and graphical digitizer, which allow rapid reinterpretation and evaluation of groundwater contours. Testing of the computer program on a synthetic surface identified a set of control parameters that resulted in a maximum computational error of +-5 percent. This maximum error occurred as streamtubes passed near stagnation points where the groundwater hydraulic potential gradients and radii of curvature were small. Sensitivity tests on the Hanford unconfined aquifer indicated that the hydraulic conductivity calculation is not particularly sensitive to errors in the storage coefficient distribution over much of the aquifer. These tests also illustrated the power of the TIR method to evaluate the validity of field data.

A code, CACECO, has been written to assist in the analysis of containment situations peculiar to sodium cooled reactors. Typically, these situations involve relatively slow energy release processes and chemical reaction heat. Two examples are given to illustrate some of the code's features. These particular cases illustrate the potential for hydrogen formation in the containment building, but show that time is available to take corrective action. The code is suitable for other problems involving passive heat absorption in massive structures over long periods of time.

Results are presented of a preliminary study of the oil shales of the Green River formation in the tri-state area of Colorado, Utah, and Wyoming to investigate their utility for possible disposal of radioactive waste material. The objective of this study was to make a preliminary investigation and to obtain a broad overview of the physical and economic factors which would have an effect on the suitability of the oil shale formations for possible disposal of radioactive waste material. These physical and economic factors are discussed in sections on magnitude of the oil shales, waste disposal relations with oil mining, cavities requirements, hydrological aspects, and study requirements. (JRD)

Results of a study of the transient performance of the Isotope Brayton Flight System (IBFS) are presented.

STATEFIT is a program written in Fortran IV for the IBM 370/195 computer to facilitate the interpretation of spectroscopic data. A list containing all the experimentally determined ..gamma..-ray energies, their relative intensities, the uncertainties in each, and when known, the total internal conversion coefficients is supplied as input. A preliminary partial decay scheme is assumed to already exist, and a second list specifying those ..gamma.. rays representing transitions between members of this group of energy levels is also provided as input data. Before execution is allowed to proceed, the two lists are subjected to ten different tests to locate possible user errors and if any are found, they are noted. Identification of a fatal error such as the inadvertent assignment of two different gamma rays between one pair of states, causes termination. The energies of the presumed states are not estimated, but are treated as varible parameters. For purposes of the calculation, each state is identified by an arbitrary index number. The best energy values of the states are determined by making a least-squares fit of the level energies to the network of assigned gamma rays. Transition intensities R/sub T/ = R/sub r/ (1 + a) are calculated, and for …

Phase distortion arising from whole beam self-focusing of intense laser pulses with arbitrary spatial profiles is treated in the limit of geometrical optics. The constant shape approximation is used to obtain the phase and angular distribution of the geometrical rays in the near field. Conditions for the validity of this approximation are discussed. Geometrical focusing of the aberrated beam is treated for the special case of a beam with axial symmetry. Equations are derived that show both the shift of the focus and the distortion of the intensity distribution that are caused by the nonlinear index of refraction of the optical medium. An illustrative example treats the case of beam distortion in a Nd:Glass amplifier.

Climate effects on biomass requirements for mammal and reptile maintenance, growth, and reproduction and implications for climate-influenced population dynamics were explored using computer simulations. The simulations revealing critical shortages of appropriate data have led to the design of experiments to acquire the needed information. The development of a technique to induce repeated egg laying in the laboratory for reproduction studies of some desert lizards was accomplished this year. (CH)

This report evaluates mathematical models that may be used to predict the flow and temperature distributions resulting from heated surface discharges from power-plant outfalls. Part One discusses the basic physics of surface-plume dispersion and provides a critical review of 11 of the most popular and promising plume models developed to predict the near- and complete-field plume. The principal conclusion of the report is that the available models, in their present stage of development, may be used to give only general estimates of plume characteristics; precise predictions are not currently possible. The Shirazi-Davis and Pritchard (No. 1) models appear superior to the others tested and are capable of correctly predicting general plume characteristics. (The predictions show roughly factor-of-two accuracy in centerline distance to a given isotherm, factor-of-two accuracy in plume width, and factor-of-five accuracy in isotherm areas.) The state of the art can best be improved by pursuing basic laboratory studies of plume dispersion along with further development of numerical-modeling techniques.

The testing program described in this report was carried out to study the liquefaction behavior of a clean, uniform, medium sand. Horizontal beds of this sand, 42 inches by 90 inches by 4 inches were prepared by pluviation with a special sand spreader, saturated, and tested in a shaking table system designed for this program, which applied a horizontal cyclic shear stress to the specimens. Specimen size was selected to reduce boundary effects as much as possible. Values of pore pressures and shear strains developed during the tests are presented for sand specimens at relative densities of 54, 68, 82, and 90 percent, and the results interpreted to determine the values of the stress ratio causing liquefaction at the various relative densities.

None

None

This report presents the Federal research and demonstrations in new transit technology between the west Virginia University and Morgantown ,west Virginia.

This report is about the Proposed Changes in Marthuana Controls, 94th Congress: Comparative Analysis.

This report is on the Standing of Members of Congress to Sue.

This report is about collision avoidance technologies.