Rene-80 nickel-base superalloy as an alloy for production of the jet turbine blades shows high mechanical properties as well as microstructure stability during the high temperature engine operation. In this research, age hardening heat treatment cycle was done on the as-cast Rene-80 superalloy. In the following, microstructure, elemental analysis of phases and macro-hardness of the alloy before...

The effect of structural evolution polyacrylonitrile (PAN) on mechanical properties was investigated in stabilization and carbonization. PAN spun fibers were stabilized in a convection oven with a constant tension for various times at 250 ̊C. Fourier Transform Infrared spectroscopy (FTIR) and gel fraction results suggested that intra and intermolecular stabilization reactions occurred simultaneo...

Heat pumps play an important role in the energy transition. They can extract renewable from air or ground and increasingly replace fossil heating systems buildings. In operation, however, heat often consume more electricity than necessary due to incorrect settings installation deficiencies. Although many setting issues are easy fix, problems go unnoticed, saving potential quick fixes remains un...

cacl2 treatment followed by heat shock is the most common method for artificial transformation. here, the cells were transformed using cacl2 treatment either with heat shock (standard protocol) or without heat shock (lab protocol) to comprehend the difference in transformation efficiency. the bl21 strain of escherichia coli (e. coli) was being susceptible using cacl2 treatment. some cells were ...

The aim of this study was to determine some physical and mechanical properties spruce (Picea orientalis) wood, which impregnated with aqueous solutions valonia (valex) (the extract Quercus ithaburensis), pine bark powder (pinex) (Pinus brutia Ten.) gallnut (galex) (Quercus infectoria Oliver) as a pre-treatment then heat treated. Test specimens were prepared from sapwood wood 10% tannin before t...

Batches (30-L) of first-milking bovine colostrum, inoculated with Mycoplasma bovis (10(8) cfu/mL), Listeria monocytogenes (10(6) cfu/mL), Escherichia coli O157:H7 (10(6) cfu/mL), Salmonella enteritidis (10(6) cfu/mL), and Mycobacterium avium subsp. paratuberculosis (Map; 10(3) cfu/mL), were heat-treated at 60 degrees C for 120 min in a commercial on-farm batch pasteurizer system. Duplicate 50-m...

Climate change will potentially impact C cycling in terrestrial ecosystems during the next century. Plant respiration uses a significant portion of CO2 fixed during photosynthesis, and predicted warmer future temperatures could result in an exponential increase in plant respiration, increasing the amount of photosynthate returned to the atmosphere as new CO2, and decreasing the amount of C sequ...

Published findings from a randomized controlled trial have shown that Mindful Yoga training improves symptoms, functional deficits, and coping abilities in individuals with fibromyalgia and that these benefits are replicable and can be maintained 3 months post-treatment. The aim of this study was to collect pilot data in female fibromyalgia patients (n = 7) to determine if initial evidence indi...