61 research outputs found
Leishmanicidal and cholinesterase inhibiting activities of phenolic compounds of Dimorphandra gardneriana and Platymiscium floribundum, native plants from Caatinga biome
Full text link
Lipid Transport, Dietary Fats, and Endogenous Lipid Synthesis: Hypotheses on Saturation and Competition Processes
No full textBrazing characteristics of a Zr-Ti-Cu-Fe eutectic alloy filler metal for Zircaloy-4
No full textA Zr-Ti-Cu-Fe quaternary eutectic alloy was employed as a new Be-free brazing filler metal for Zircaloy-4 to supersede physically vapor-deposited Be coatings used conventionally with several disadvantages. The quaternary eutectic composition of Zr58Ti16Cu10Fe16 (at.%) showing a low melting temperature range from 832 C to 853 C was designed by a partial substitution of Zr with Ti based on a Zr-Cu-Fe ternary eutectic system. By applying an alloy ribbon with the determined composition, a highly reliable joint was obtained with a homogeneous formation of predominantly grown ??-Zr phases owing to a complete isothermal solidification, exhibiting strength higher than that of Zircaloy-4. The homogenization of the joint was rate-controlled by the diffusion of the filler elements (Ti, Cu, and Fe) into the Zircaloy-4 base metal, and the detrimental segregation of the Zr 2Fe phase in the central zone was completely eliminated by an isothermal holding at a brazing temperature of 920 ??C for 10 min.close0
Observability Analysis for the INS Error Model with GPS/Uncalibrated Magnetometer Aiding
No full textVertical vibration analysis of soil-pile interaction systems considering the soil-pile interface behavior
No full textFate of Pigments and Phytate During Isolation of Protein from Defatted Glandless Cottonseed Flour
No full text
- …
