Crystallization kinetics under processing-relevant cooling conditions of polyethylene/isotactic-polypropylene (PE/PP) blends, with compositions similar to real recycled was investigated through an in situ temperature monitoring technique. Continuous Cooling Curve (CCC) diagrams a large crystallization range were obtained for the two phases, thanks new apparatus allowing fast quenching polymer s...

Allotropic transformation in uranium has been studied over a range of cooling rates from 5 to about 8000°C/sec. The transformation temperatures of both gamma-to-beta and beta-to-alpha were found to decrease continuously with increasing rates of cooling. The extent of the beta-range increased with increasing cooling rates. For rates of cooling up to 1000°C/sec, recalescence was observed in both ...

Abstract The unknown cooling-rate history of natural silicate melts can be investigated using differential scanning heat capacity measurements together with the limiting fictive temperature analysis calculation. There are a range processes occurring during cooling and re-heating samples which influence calculation and, therefore, calculated sample. These occur at extremes slow fast quenching. a...

We present limits to the log N − log S curve for isolated neutron stars, both cooling and accreting neutron stars, which are not active as radio pulsars, as observed with the ROSAT All-Sky Survey and compare it with theoretical expectations. So far, only one isolated neutron star is identified optically among ROSAT sources, namely RXJ185635-3754 (Walter & Matthews 1997). Three more promising ca...

Soldering in a reflow oven is an important and efficient technical means to produce integrated circuit boards. The key the quality of boards lies furnace temperature curve. In this paper, Newton’s law cooling used establish mechanism model each zone curve temperature, which can reduce number experiments actual production obtain better curve, thus improving efficiency. Finally, several concrete ...

Experimental results of the thermal conductivity (k(T)) of nanostructured g-As2S3 during cooling and heating processes within the temperature range from 2.5 to 100 K have been analysed. The paper has considered thermal conductivity is weakly temperature k(T) dependent from 2.5 to 100 K showing a plateau in region from 3.6 to 10.7 K during both cooling and heating regimes. This paper is the firs...

Changes of dynamic and structural parameters of egg yolk lecithin (EYL) liposome membranes in the heating-cooling cycles have been studied using the ESR spin probe method. The investigations were conducted in the range of temperatures from -18 degrees C to +60 degrees C. It has been found that in the range of temperatures -15 degrees C to +45 degrees C in both the heating and the cooling run th...

Recent UV observations of the most massive Galactic globular clusters show a significant population of hot stars below the zero-age HB (“blue hook” stars), which cannot be explained by canonical stellar evolution. Stars which suffer unusually large mass loss on the red giant branch and thus experience the heliumcore flash while descending the white dwarf cooling curve could populate this region...