Technology utilization in a non-urban region: Further impact and technique of the Technology Use Studies Center, 2

The clientele served by the Technology Use Studies Center (TUSC) is updated. Manufacturing leads the list of client firms. The standard industrial classification (SIC) range of these firms is broad. Substantial numbers of college and university faculties are using TUSC services. Field operations inherent in the functions of dissemination and assistance are reviewed. Increasing emphasis among clientele is on environmental concerns and management. A record is provided of the institutions contacted and the extent of TUSC involvement with them, as well as TUSC's cooperation with agencies and organizations. The impact of TUSC and the NASA-sponsored Technology Utilization Program on other public agencies is discussed

Technology utilization in a non-urban region: Further impact and technique of the Technology Use Studies Center

Updated information pertaining to clients who receive and use information disseminated by the Technology Use Studies Center (TUSC) is reported. Charts are provided which indicate TUSC's performance in information dissemination and technical assistance in terms of quantities of searches accomplished during several contract years. The faculty information service is described, along with details of cooperation with other agencies. Specific searches are listed according to subject, client, and client location, and a measure of client response to services provided is indicated by the included selection of transfer and impact reports. The impetus behind the formation of the general aviation news letter is also described

Technology utilization

Documentation is presented for selected transfer and impact reports provided to the business community, government agencies, and such other requestors as schools, universities, and health services. Statistical data are also included on the characteristics of the TUSC technical searches

Search and dissemination in data processing

Manual retrieval methods were used to complete 54 searches of interest for the General Aviation Newsletter. Subjects of search ranged from television transmission to machine tooling, Apollo moon landings, electronic equipment, and aerodynamics studies

Technology utilization data searches

Technology Use Studies Center activities, functions, and services are reported for this period. Transfers and searches are described. Characteristics of TUSC searches are tabulated

DESIGN AND CONSTRUCTION OF EDDY-CURRENT COOLANT-CHANNEL SPACING-PROBES

The coolant-channel spacing between two flat fuel plates may be measured using an eddy-current induction coil. The range and sensitivity of these spacing measurements are functions of the coil geometry, the material surrounding the coil, and the operating frequency. Experimental curves are given showing how the coil impedance varies as a function of geometry, frequency, and the material surrounding the coil. A design problem is solved showing the compromises made between range and sensitivity which determine the coil geometry. The wire size and hence the proper number of turns are selected to match the coil to an alternating current bridge. Probe construction techniques are given to help the user construct both the coil and the apparatus to position the coil in the coolant channel. The necessary data for the design of spacing probes for many similar problems are given. (auth

Design of a Temperature-Compensated Induction Extensometer

By proper choice of materials, dimensions and circuit parameters, it is possible to design a linear displacement transducer, or extensometer, to have zero net thermal drift over any given temperature range. The chief limitation is the inability of wires and insulation to withstand very high temperatures. An extensometer has been designed and tested which could theoretically measure displacements up to 150 mm with a maximum error of ±0.15 mm caused by thermal effects over the temperature range from 0° to 1000°C. Experimental limitations prevented testing at temperatures higher than 500°C, but measured and theoretical results were in good agreement over that range. The principles involved in the temperature compensation will be discussed

A Pulsed Eddy Current Method for Examining Thin-Walled Stainless Steel Tubing

A bellows is fabricated from a 12-in. section of type 321 or type 216 stainless steel tubing. In order to ensure that the bellows will survive the rigors of the production environment, it is essential that the tubing be free of all “scratch like” defects. A feasibility study was conducted to determine if an eddy current method could be developed to nondestructively examine this tubing

Slow 4He^{4}He Quenches Produce Fuzzy, Transient Vortices

We examine the Zurek scenario for the production of vortices in quenches of liquid $^{4}He$ in the light of recent experiments. Extending our previous results to later times, we argue that short wavelength thermal fluctuations make vortices poorly defined until after the transition has occurred. Further, if and when vortices appear, it is plausible that that they will decay faster than anticipated from turbulence experiments, irrespective of quench rates.Comment: 4 pages, Revtex file, no figures Apart from a more appropriate title, this paper differs from its predecessor by including temperature, as well as pressure, quenche