Compiled proceedings of the fifth Symposium on Instrumentation and Control for Fossil-Energy Processes, covering process control involved in the conversion of fossil fuels into synthetic fuels.

A procedure was developed for separating rubidium from irradiated aluminum encapsulated uranium. The separations procedure produces a final ultra-high purity rubidium chloride product for subsequent high performance mass spectrometric analysis. The procedure involves first removing most of the macro-components and fission products by strong base anion exchange using, first, concentrated HCl, then oxalic acid media and second, selectively separating rubidium from alkaline-earth ions and other alkali-metal ions, including cesium, using Bio-Rex-40 cation-exchange resin. The resultant rubidium chloride is then put through a final vacuum sublimation step. Ultra-pure reagents and specially clean glassware are used throughout the procedure to minimize contamination by naturally-occurring rubidium.

This paper describes a computational method for improving the accuracy of a given singular value and its associated left and right singular vectors. The method is analogous to iterative improvement for the solution of linear systems. That is, by means of a low-precision computation, an iterative algorithm is applied to increase the accuracy of the singular value and vectors; extended precision computations are used in the residual calculation. The method is related to Newton's Method applied to the singular value problem and inverse iteration for the eigenvalue problem.

Abstract: Using a modified version of the nonanalytic equation of state, thermophysical properties of isobutane are derived from physical properties data and are tabulated at integral temperatures over the entire range of fluid states from 114 to 700 K along isobars at pressures to 70 MPa. Results include dielectric constants, densities, enthalpies, entropies, equation of state, internal energies, isobars, isochores, isotherms, Joule-Thomson inversion, heats of vaporization, melting line, orthobaric densities, specific heats, sound velocities, vapor pressures, and virial coefficients. In addition to the equation of state, equations are given for vapor pressures, orthobaric vapor and liquid densities, ideal gas properties, second virial coefficients, dielectric constants, heats of vaporization, melting pressures, and orthobaric liquid specific heats, enthalpies, and entropies. Several new sets of data have been used in this correlation; comparisons between experimental and calculated values are given.

Report of the annual conference on weights and measures, hosted by the U.S. National Bureau of Standards in Washington D.C. It includes conference proceedings, a list of attendees, information about committees and officers, and other reports or commentaries discussed at the meetings.

This report follows a rotary-wing high sensitivity radiometric and magnetic survey that was flown covering a portion of the Lakeview Oregon area.

Appendices containing data on uranium occurrences and analyses from the Lamar Quadrangle, in addition to petrographic descriptions of samples.

Abstract: Uranium resources of the Lamar Quadrangle, Colorado and Kansas, were evaluated using National Uranium Resource Evaluation criteria. The environment favorable for uranium is the Lower Cretaceous Dakota Sandstone in the area east of John Martin Reservoir for south Texas roll-type sandstone deposits. Carbonaceous trash and sulfides are abundant in the Dakota Sandstone. The unit underlies a thick Upper Cretaceous section that contains bentonitic beds and uraniferous marine black shale. Water samples from the Dakota Sandstone aquifer contain as much as 122 parts per billion Uranium-3 Oxygen-8. Geologic units considered unfavorable include most of the Paleozoic rocks, except in the Brandon Fault area; the Upper Cretaceous rocks; and the Ogallala Formation. The Dockum Group, Morrison Formation, and Lytle Member of the Purgatoire Formation are unevaluated because of lack of data.

Tabulated field data for water samples collected at 5,778 well and spring sites in North Carolina, including well type, well depth, well classification, well age, and pipe composition (see pages 36-38 of report).

Tabulated field data for water samples collected at 3,948 well and spring sites in South Carolina, including well type, well depth, well classification, well age, and pipe composition (see pages 36-38 of report).

Tabulated ground water analyses and site descriptions for ground water samples collected at 5,778 sites in North Carolina, including pH, alkalinity, conductivity, uranium concentration, and helium value (see pages 30-35 of report).

Tabulated ground water analyses and site descriptions for ground water samples collected at 3,948 sites in South Carolina, including pH, alkalinity, conductivity, uranium concentration, and helium value (see pages 30-35 of report).

Tabulated sediment analyses and site descriptions for stream sediment samples collected at 6,744 sites in North Carolina, including pH and elemental values (see pages 38-39 of report).

Tabulated sediment data with elemental analyses for stream sediment samples collected at 6,744 sites in North Carolina (see page 39 of report).

Tabulated sediment data with elemental analyses for stream sediment samples collected at 3,618 sites in South Carolina (see page 39 of report).

This report presents the results of ground water, stream water, and stream sediment reconnaissance in North and South Carolina.

Tabulated analyses for surface water samples were collected at 295 sites in North Carolina, including pH and elemental analysis for each sample (see page 43 of report).

Tabulated data with sediment analyses, site descriptions, and accompanying water quality measurements for stream sediment samples collected at 6,744 sites in North Carolina (see pages 39-42 of report).

Tabulated data with sediment analyses, site descriptions, and accompanying water quality measurements for stream sediment samples collected at 3,618 sites in South Carolina (see pages 39-42 of report).

Tabulated data with elemental analyses for stream sediment samples collected at 4,619 sites in North Carolina (see pages 42-43 of report).

Tabulated data with elemental analyses for stream sediment samples collected at 4,619 sites in North Carolina (see pages 43 of report).

Tabulated sediment analyses and site descriptions for stream sediment samples collected at 3,618 sites in South Carolina, including pH and elemental values (see pages 38-39 of report).

Tabulated data with elemental analyses for stream sediment samples collected at 2,483 sites in South Carolina (see pages 42-43 of report).

Tabulated data with elemental analyses for stream sediment samples collected at 2,483 sites in South Carolina (see pages 43 of report).