Two solar collectors using a pebble bed design were constructed and tested using air as the heat exchange media. One collector had pebbles of metallurgical grade coke, and the other had a frothy volcanic material called scoria. The highly irregular surface of such vesicular material should increase the path distance for the air and the surface exposed cavities should give some honeycomb effect. Both should yield greater efficiency. Actual testing shows the efficiencies to be comparable with other air collectors. Thus the advantages of the pebble bed lie in the availability of the bed material, its thermal and radiation stability, and its shielding of underlying collector materials from ultraviolet radiation. Several pebble bed collectors using water as the heat exchange media were constructed. However, basic problems prevented effective testing, and it is concluded that pebble bed collectors using water are impractical.

The present study indicates that the estimation of the gamma-ray strength function is the approach least subject to error when unmeasured capture cross sections are to be computed. An estimate is given for the /sup 88/..gamma..(n,..gamma..) cross section.

The objective of the work reported here was to develop a model which could be used to assess the economic effects of energy-conservative technological innovations upon the pipeline industry. The model is a dynamic simulator which accepts inputs of two classes: the physical description (design parameters, fluid properties, and financial structures) of the system to be studied, and the postulated market (throughput and price) projection. The model consists of time-independent submodels: the fluidics model which simulates the physical behavior of the system, and the financial model which operates upon the output of the fluidics model to calculate the economics outputs. Any of a number of existing fluidics models can be used in addition to that developed as a part of this study. The financial model, known as the Systems, Science and Software (S/sup 3/) Financial Projection Model, contains user options whereby pipeline-peculiar characteristics can be removed and/or modified, so that the model can be applied to virtually any kind of business enterprise. The several dozen outputs are of two classes: the energetics and the economics. The energetics outputs of primary interest are the energy intensity, also called unit energy consumption, and the total energy consumed. The primary economics outputs are …

Theoretical discussions on seismic design testing are presented under the following appendix headings: system functions, pulse optimization program, system identification, and motion response calculations from inertance measurements of a nuclear power plant.

This memorandum provides a discussion of the K Reactor dichromate test results. Recommendations as to sodium dichromate concentration control are provided. (FL)

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, John L. Hill, regarding a legal question submitted for clarification; Authority of Texas Animal Health Commission to identify owners of swine infected with pseudorabies which have been slaughtered on order of the commission.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, John L. Hill, regarding a legal question submitted for clarification: Authority of Railroad Commission to prohibit contract provisions limiting the liability of an LPG dealer.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, John L. Hill, regarding a legal question submitted for clarification: Subpoena fees in misdemeanor cases.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Crawford Martin, regarding a legal question submitted for clarification;questions concerning article 6.01, et seq.,Title 122A,V.C.S. and amendments there to contained in H.B.730 acts 1971, 62nd leg., R.S.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Crawford Martin, regarding a legal question submitted for clarification; Whether, pursuant to Section 3.25(b), Texas Education Code, a retired public school teacher may return to teaching and again qualify for retirement so that his additionl years of teaching are computed in calculating his new retirement status.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, John L. Hill, regarding a legal question submitted for clarification; Authority of Department of Corrections to require that any eligible inmate who is receiving college training apply for federal veteran benefits to defray the cost of such education.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, John L. Hill, regarding a legal question submitted for clarification; Authorities of counties to regulate solid waste disposal operations.

A proposed program is outlined covering the following areas: scale characterization and control, brine and effluent characterization, suspended solids characterization and control, effluent condition for reinjection, corrosion surveillance and Geothermal Loop Experimental Facility support, and materials testing and evaluation. (MHR)

The nation's transportation system faces problems on both sides of the supply-demand equation. Analysis of these problems has resulted in identification of two broad transportation energy conservation program areas: (1) more-efficient and environmentally acceptable heat engine systems are needed; they must be optimized for available fuels and eventually alternate fuels; and (2) alternate propulsion systems such as electric or hybrid vehicles are also required. A difficulty arises in that these solutions may not come about in a timely fashion due to market forces alone. It is necessary to understand why this is so in order that appropriate government actions can be taken. Discussed first is a fundamental premise or assumption that the public good is best served by a free market which presumably allocates resources optimally; in other words, for the greatest positive net social benefit. Optimal resource allocation is considered synonymous in this discussion with conservation. This fundamental assumption has been challenged in that, if public and private objectives diverge, sub-optimal resource allocation could result with attendant social disbenefit. This divergence of objectives can come about in the transportation sector in two ways. First, when the market value of energy is below the true marginal value, markets will tend …

Environmental levels of {sup 129}I and natural {sup 127}I have been measured by neutron activation analysis .on samples from throughout the United States at locations near and remote from release points . Highest {sup 129}I concentrations were observed near nuclear fuel reprocessing facilities. Levels of {sup 129}I above natural iodine background were observed at all locations studied. The sample data establishes baseline levels of environmental {sup 129}I for the expanding nuclear industry.

The experimental technique for irradiating the specimen with 14-MeV neutrons from the LLL rotating target neutron source is described. No test results are given. (MOW)

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This report provides statistics on a state by state basis for federal expenditures,, federal procurement actions, and federal revenues for the year 1970, minus federal wage and salary.

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.

Heat transfer from the sides and bottom of an open non-boiling liquid pool with spatially uniform internal gas injection was studied experimentally, both in transient and in steady state. The results were compared with experimental data for a boiling pool without permanent gas injection undertaken at Argonne National Laboratory. Typical Nusselt number versus Reynolds number plots showed that heat transfer rates were much higher in the gassy pool due to more efficient circulation. A correction was applied to estimate the surface evaporation effect under boiling conditions. Bubble size and distribution effects controlled the heat transfer rates. Vertical void fraction profiles were inferred from local static pressure measurements. A modified Grashof number, in terms of the average void fraction, was also used to correlate the data for horizontal heat flow. The bottom and side heat loss rates were about equal, which would indicate that the pool might retain its shape as it sinks into the support material.

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This report is on the effects of the flexible interest rate on depository and thrift institutions such as savings and loan associations and mutual savings banks.

The transport equation may be solved by expanding it in spherical harmonics, Y{sub lm}, and truncating the resultant infinite set of equations at some finite order L. This procedure leaves the (L + 1)th order moments which appear in the Lth order equation undetermined, and the standard procedure for obtaining a closed set of equations has been to set all the (L + 1)th order moments to zero. It has been shown here that this procedure actually violates the apriori knowledge that one is solving for the moments of a probability measure on the unit sphere. Using the theory of moments of a probability measure on the unit sphere. Using the theory of moments as discussed above, the (L + 1)th order moments can be chosen in accordance with apriori knowledge. The resultant truncated set of equations has properties much truer to the original transport equation than the usual set obtained by setting the (L + 1)th order moments to zero. In particular the truncated set of equations gets the solution of the transport equation exactly right in both the diffusion limit and the free streaming limit. Furthermore, this has been achieved by merely truncating the set of equations properly …