A study was performed to evaluate alternative methods for the generation of electricity from stored hydrogen. The generation systems considered were low- temperature and high-temperature fuel cells, gas turbines and steam turbines. These systems were evaluated in terms of present-day technology and future (1995) technology. Of primary interest were the costs and efficiencies of the devices, the versatility of the devices toward various types of gaseous feeds, and the likelihood of commercial development. On the basis of these evaluations, recommendations were made describing the areas of technology which should be developed.

Electron curvature drift resonances, ignored in earlier work on the trapped-electron modes, are found to exert a strong destabilizing influence in the lower collision frequency range of these instabilities. Effects arising from ion temperature gradients, shear, and finite ion gyroradius are included with these vector nebla-drifts in the analysis, and the resultant eigenvalue equation is solved by numerical procedures rather than the commonly used perturbation techniques. For typical tokamak parameters the maximum growth rates are found to be increased over earlier estimates by roughly a factor of 4, and requirements on magnetic shear strength for stabilization are likewise more severe and very difficult to satisfy. For inverted density profiles, this new destabilizing effect is rendered ineffective, with the result that the modes can be stabilized for achievable values of shear provided the temperature gradients are not too severe. Estimates of the particle and thermal energy transport are given for both normal and inverted profiles. (auth)

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Dixie Harrison, Miss Rodeo New Hampshire, models a Bicentennial suit of Western-styled clothes her mother made for her as a contestant in the Miss Rodeo America Pageant."

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Linda Witke, Miss Rodeo Washington, at left, shows a knitted hat cover her mother made for Jan Cowan, Miss Rodeo Louisiana, as the Miss Rodeo America Pageant opened today."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Bruton Wood, who last year won a legal fight to keep his job, now says he will retire as executive director of the Oklahoma Employment Security Commission, effective Wednesday."

During slow encounters between projectile and target atoms, the electronic atomic wave functions of the two collision partners distort and form molecular orbitals (MOs). K vacancy formation in slow heavy-ion collisions, which occur when electrons are excited out of the 2psigma and 1ssigma MOs, is considered. Experimental work using 200 MeV Kr ions is described. The main interest is the excitation of electrons from the 1ssigma MO. The 1ssigma vacancy production is only observed in very asymmetric collisions: as Kr K x rays in encounters with target atoms between H and Ar, and as target K x rays in encounters with atoms between Ce and U. Theoretical approximate calculations of 1ssigma ionization cross sections are described. (JFP)

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Jan Lawson holds a reminder of the Bicentennial cake she made for President Ford's visit to the State Fair of Oklahoma."

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Oklahoma City's new U.S. Attorney David Russell, left, is cogratulated by Tulsa U.S. Attorney Nate Graham."

A systematic calculus of long-range Regge cut effects in multiparticle production is constructed in the form of an infrared-divergent stochastic field theory. Total cross sections and two-body overlap integrals in such a theory may depend very sensitively upon internal quantum-numbers of incident particles, resulting in a strong symmetry breaking at ultra-high energies. Such symmetry violations will influence low energy processes through dispersion relations, and a bootstrap of weak interactions becomes possible. A rough analytic estimate of the scale of thresholds for such effects yields a BCS-type gap equation, which expresses the scale of weak and electromagnetic couplings in terms of purely strong-interaction parameters. (auth)

Progress is reported in the following areas: radioactivity control technology, FFTF sodium characterization system, corrosion and process control, and fuel failure monitoring systems for FFTF and CRBRP. (JWR)

Electrical design details are given for a toroidal Z-pinch device named ZT-1 that uses field programming to achieve a stable, reversed field pinch. The plasma is formed in a 4-mm-thick, 10.3-cm-i.d., high alumina, segmented ceramic vacuum chamber. Voltages as high as 70 kV are routinely attained by interrupting with a fuse 800 kA in an inductive store. The current is diverted from the fuse to the primary of a single-turn transformer divided into quadrants. A total of 280 kV at 200 kA can then be applied to the plasma, which forms the secondary circuit of the transformer. This system produces dB/sub theta//dt's of up to 8 T/ $mu$s; with modifications to the electrical system, dB/sub theta//dt's as low as 0.1 T/$mu$s are obtained. The B/sub z/ bias field of up to 0.25 T can be reversed at a rate of up to 0.2 T/$mu$s. Both B/sub theta/ and B/sub z/ magnetic field errors are minimized. The design of the fuses and magnetic core and the development of a low inductance and resistance metal-to-metal crowbar are described. (auth)

This report presents results of a Workshop on Geophysical Measurements in Geothermal Wells, hosted in Albuquerque, September 17-19, by Sandia Laboratories and jointly sponsored by the United States Geological Survey and the Energy Research and Development Administration. During the workshop, tutorial papers dealing with the geothermal resource, geothermal logging, and high temperature technology were followed by working panel sessions. Three panels deliberated, respectively, well and reservoir parameters, log interpretation, and high temperature technology. In a final session, the reports of the panels were heard and discussed by the full workshop. A summary of the workshop conclusions and recommendations, as well as the complete panel statements, are presented. (auth)

A consistent set of multigroup neutron cross sections was developed for nuclides in the production chain from /sup 242/Pu to /sup 253/Es. Initial multigroup data sets were derived from ENDF/B and existing Savannah River evaluated data libraries; where differential data were lacking, resonance-region model calculations and measured integral cross sections were used to fabricate the energy-dependent multigroup data. The evaluated multigroup cross section data were utilized in reactor calculations to predict yields for several experimental test measurements and long-term reactor irradiations in flux spectra of varying hardness. The calculations with the JOSHUA system reproduce the reactor environment as a function of time and predict the concentrations of actinide nuclides in the chain. Multigroup cross section data were modified within the experimental uncertainties until predicted nuclide concentrations matched experimental results within reasonable limits over the range of neutron flux spectra.

Daily newspaper from Oklahoma City, Oklahoma that includes local, state, and national news along with advertising.

Daily newspaper from Oklahoma City, Oklahoma that includes local, state, and national news along with advertising.

Daily newspaper from Lawton, Oklahoma that includes local, state, and national news along with advertising.

Excellent sensitivity and accuracy in the measurement of deformation occurring in materials tests have been achieved with a newly developed microwave frequency sensor and instrumentation system with possible application for strain tests inside nuclear reactors. The strain sensor comprises a microwave cavity resonating in the circular TE 113 and TM 110 modes. Detection of axial strain occurs due to the changes of resonant frequency incurred by cavity length changes. Axial strain sensitivity for the TE 113 mode was 6 x 10$sup -6$ per MHz, whereas radial dimensions of the cavity were related to frequency of the TM 110 mode. Aperture coupling of the cavity to the end wall of K/sub a/ band waveguide provided signal excitation of the two monitored modes. Phase locked frequency stability enabled digital count/display of resonant frequencies to within 70 kHz at 35 GHz. Room temperature tension test results demonstrate a strain measuring sensitivity (+- 1 x 10$sup -6$) and accuracy (+ -1 percent of the measured value) equivalent to those of electrical resistance strain gages. The system yields accurate measurements of elastic strains as well as small departures from elastic response and hysteresis behavior during unloading and reloading. Creep test results confirm that measurement sensitivity …

Zero degree neutron spectra for the inclusive reactions p(p,n) and d(p,n) were obtained. Spectra were obtained for bombarding proton kinetic energies of 647 and 800 MeV. The strongly peaked p(p,n) spectra are well explained via the p(p,n)p..pi../sup +/ reaction primarily through the production of the N*/sub 33/(..delta../sup + +/) resonance. However, there is evidence for n-p final state interactions as well. Calculations have shown the roles of the N*/sub 33/ resonance and the n-p final state interactions in these p(p,n) spectra. The d(p,n) spectra exhibit a strong quasi-elastic charge exchange peak influenced by the final state p-p interaction in the reaction d(p,n)2p. The d(p,n) spectra also show a broad bump at lower neutron momenta qualitatively similar to the p(p,n) spectra. The d(p,n) spectra at lower momenta are nearly explained by nucleon-nucleon single pion production via the N*/sub 33/ resonance but it appears that higher order contributions involving nucleon--nucleon and nucleon--pion interactions are required as well. The d(p,n)2p reaction provides an intense, nearly monoenergetic neutron beam for use as a probe, primarily of the n-p interaction, at medium energies. The d(p,n) and p(p,n) measurements provide zero degree neutron momentum distributions which are very useful in furthering the knowledge about pion production …

The mechanical design and construction of a 5 cm bore, 23 cm long solenoidal magnet operated at 250 kilogauss is described. The magnet provides confining field for a plasma heated by a CO$sub 2$ laser. Radial diagnostic ports with a clear aperture of 0.41 cm allow viewing access near the magnet midplane. The on-axis field homogeneity is within 5 percent over a central length of 12 cm. The magnet sustained 500 to 1000 pulses at the highest field levels before catastrophic failure. (auth)

A weekly student newspaper from the Rice University in Houston, Texas that includes campus news and commentaries along with advertising.

The electrical resistivity and magnetic susceptibility of the cubic intermetallic compounds UIr$sub 2$ (MgCu$sub 2$-type) and UIr$sub 3$ (ordered, AuCu$sub 3$-type) were measured between 2-300$sup 0$K. The susceptibility of UIr$sub 3$ is temperature independent and substantially lower than that of isoelectronic URh$sub 3$, being 0.57 vs 0.97 x 10$sup -3$ emu/mole at room temperature. The susceptibility of UIr$sub 2$ is very weakly temperature dependent above 100$sup 0$K and has a value of 1.18 x 10$sup -3$ emu/mole at room temperature. The electrical resistivities of both compounds follow power law dependences at low temperatures, of the form rho-rho$sub 0$ = AT/sup n/, with n = 1.9 for UIr$sub 2$ and n = 3.7 for UIr$sub 3$. These results indicate that UIr$sub 2$ may be a spin fluctuation compound, while UIr$sub 3$ behaves as a simple transition metal compound, with even less d-f character than URh$sub 3$ (n = 3.0). The specific heat of UIr$sub 2$ was measured between 1-4K and may be fit to C =$gamma$T + $beta$T$sup 3$, with a large value of $gamma$, 62.5 mJ/(mole- K$sup 2$), which is consistent with a narrow 5f band at the Fermi level. The lack of any magnetic phenomena in UIr$sub 3$ is …

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.

Six classes of experiments form the base of a program of thermal neutron scattering at the Weapons Neutron Research (WNR) Facility. Three classes are to determine the average microscopic positions of atoms in materials and three are to determine the microscopic vibrations of these atoms. The first three classes concern (a) powder sample neutron diffraction, (b) small angle scattering, and (c) single crystal Laue diffraction. The second three concern (d) small kappa inelastic scattering, (e) scattering surface phonon measurements, and (f) line widths. An instrument to couple with the WNR pulsed source is briefly outlined for each experiment.

The complete test results for a flat plate with two closely spaced nozzles attached are presented. Test loadings were 1:1, 1:2, and 2:1 biaxial planar tension loadings on the plate, axial thrust loadings applied separately to the nozzles, and bending moment loadings applied to the nozzles both within and normal to the plane of symmetry containing the nozzle axes. The test plate was 36 x 36 x 0.375 in., and the attached nozzles had outer diameters of 2.625 in. and wall thicknesses of 0.250 in. The nozzles were located in the center of the plate with their centers 3.0 in. apart and were considered to be free of weld distortions and irregularities in the junction region. 6 references. (auth)