Improvement in the construction of apparatus for heating a bundle of man-made fibres

Conclusions Results have been presented from tests of apparatus for the heat treatment of bundles of man-made fibres: dependence of power required on heater temperature; and the character of heater temperature distribution over the length of the heater and in various sections.Data have been compared for energy expenditure and amount of material needed by apparatus having elliptical and round heater cross-sections.Translated from Khimicheskie Volokna, No. 5, pp. 49–51, September–October, 1985.     

X-Ray analysis of the stress-strain state of metallic powders in pressing

Translated from Poroshkovaya Metallurgiya, No. 11, pp. 6–9, November, 1990.     

Rehabilitation and field testing of an FRP bridge deck on a truss bridge

A light-weight FRP deck was used, on an experimental basis, to replace a heavy deteriorated concrete deck improving the load rating of a 60-year old truss bridge located in Wellsburg, New York. This was the first such application in New York State. Load testing was conducted after installation of the FRP deck to study its behavior. Results indicated the conservative nature of the deck design, and no composite action between the deck and the superstructure. The study also shows that the joints are only partially effective in load transfer between panels.     

Effect of hypophysectomy on calcium transport by rat duodenum

To examine the effect of hypophysectomy on intestinal calcium absorption, studies were performed on immature rats 7, 14, and 21 days after hypophysectomy. Duodenal calcium transport was measured in vitro utilizing everted gut sacs and in vivo by a luminal perfusion technique. Hypophysectomy produced no differences in the ability of everted gut sacs to transport calcium. Similarly, when in vivo transport data were expressed on the basis of intestinal length, no significant differences were noted. However, when transport data were expressed on the basis of mucosal weight, increases in absorption and lumen-to-plasma fluxes were apparent in hypophysectomized animals. No differences were seen in plasma-to-lumen fluxes. The results indicate that when the transport data are corrected for mass of intestinal mucosa, the duodenum from hypophysectomized animals absorbs calcium more avidly due to an increase in lumen-to-plasma flux.     

Measurement of the Total Range and Specific Energy Deposition of a Beam of Uranium Ions in Porous Carbon Targets

Experimental results on the total range and specific energy deposition of a beam of uranium ions in foam carbon targets with various densities are presented. The chaotic arrangement of graphite grains in a porous target is modeled theoretically and the influence of the porosity on ion stopping is investigated.