The comprehensive value of mum's heat resistance was obtained and evaluated. The best regressive function was founded to forecast other mum's heat resistance. (D=l. 277-0.145X1-0.126X2-0.104X4+0. 532X8)
Compared with Y(NO3)3, La(NO3)3 exerts a great influence about mechanics and heat performance on PVC. When the content of La(NO3)3 in PVC reach 6%, the mechanical intensity and heat resistance of PVC membrane up to best.
A total of three QTLs conferring heat tolerance during grain filling were detected on chromosomes 1, 4 and 7, with LOD scores 8.16, 11.08 and 12.86, and explained 8.94%, 17.25% and 13.50% of the phenotypic variance, respectively.
With adding trace rare-earth element Ce, the results showed that the strength, hardness and heat-resistance of Cu-Cr-Zr alloy were improved, and tensile strength was enhanced to 637 MPa that was increased 56 MPa compared with Cu-Cr-Zr alloy, but the electrical conductivity of Cu-Cr-Zr-Ce alloy was 82.16 %IACS which was a bit lowered.
The thermal-decomposed peaks of common PF are 400~425 ℃ and 540~600 ℃,while those for modified PF are 440~470 ℃ and 600~660 ℃,which means that the heat-resistance and heat-stability of linseed oil-modified PF is superior to pure phenolic resin.
The excellent modified CE resin was prepared when CE/EP/PF was 70/15/15(wt),its flexural strength and impact strength increased from 123.6 MPa and 5.2 kJ/m~(2) to 134.5 MPa and 16.7 kJ/m~(2) respectively,and the thermal stability and dielectric properties of the modified CE varied little.
Changes in Heat Resistance of the Muscle and Glycerinated Muscle Fibers of Green Toad (Bufo viridis complex)
Heat resistance of muscles and actomyosin proteins was determined at damaging temperatures of 41, 42, and 43°C in three green toad (Bufo viridis complex) populations from different climatic zones of Uzbekistan.
The variability of heat resistance of the muscle and models was also the highest in toads of the first group.
Heat resistance of the skeletal muscle in Western Palearctic green frogs (Rana esculenta complex)
Heat resistance of the gastrocnemius muscle was studied in five species of the Rana esculenta complex.
Tests of Ni- and Al-coatings for heat-resistance of the items are carried out in the presence, as well as the absence, of a protective tungsten sublayer.
The paper considers the thermal component in the resulting measurement error in the SHF band in free space for the relative dielectric constant and tangent of dielectric loss as functions of temperature of heat-resistance dielectric materials.
Compared with phenolic resin, the intercalation nanocomposites have better heat-resistance, higher decomposition temperatures and less thermal weight-loss.
The polymer, poly[(phenylsilylene) ethynylene-1,3-phenyleneethynylene], abbreviated MSP, possesses low thermosetting temperature (423-480 K), no volatility with cure, excellent heat-resistance and high char yield above 1273 K.
Properties of a new sealing composition with high heat-resistance (up to 250°C) and dielectric characteristics and with a decreased density are described.