This report presents the results of wind-tunnel tests supported through the Solar Energy Research Institute (SERI) by the Office of Solar Thermal Technology of the US Department of Energy as part of the SERI research effort on innovative concentrators. As gravity loads on drive mechanisms are reduced through stretched-membrane technology, the wind-load contribution of the required drive capacity increases in percentage. Reduction of wind loads can provide economy in support structure and heliostat drive. Wind-tunnel tests have been directed at finding methods to reduce wind loads on heliostats. The tests investigated both mean and peak forces, and moments. A significant increase in ability to predict heliostat wind loads and their reduction within a heliostat field was achieved. In addition, a preliminary review of wind loads on parabolic dish collectors was conducted, resulting in a recommended research program for these type collectors. 42 refs., 38 figs., 1 tab.

This report provides information on milk distribution and dairy cattle feeding practices in Nevada, Utah and portions of seven other adjacent states during the 1950s. The information was gathered to support the US Department of Energy's ''Offsite Radiation Exposure Review Project (ORERP).'' This project is charged with providing radiation dose estimates for residents of Nevada, Utah, and surrounding states from nuclear weapons testing conducted at the Nevada Test Site from 1951 through 1962. The information on milk production and distribution is essential for assessment of the internal organ doses received by people as a result of ingesting radioactive fallout-contaminated foods. The information is used as input data for Colorado State University's PATHWAY computer code which estimates the ingestion of twenty radionuclides by people relative to a given level of fallout deposition.