the influence of aluminium on the microstructure of austempered ductile cast iron (adi) has been studied. anumber of irons of different compositions have been made by green sand casting and gravity die casting ofappropriate design to provide the experimental materials. austenitising was carried out at different temperaturesand holding times for a variety of experimental irons to achieve suffici...

Introduction: Extreme heat claims more lives than all other weather-related exposures combined. Hajj rituals at Mina, Arafat, and Muzdalifah involve a minimally-clothed, moving assemblage of 3.5 million pilgrims who are exposed to a harsh, hot, desert climate during physically challenging outdoor rituals and unsheltered night stays, rendering them prone to heat illness, dehydra...

The effect of ultrasound (US) pre-treatment on the evolution of Maillard reaction (MR), induced between low molecular weight (LMW) peptides and sucrose, was studied. LMW peptides (<1kDa) were obtained by the ultrafiltration of smooth hound viscera protein hydrolysates, produced by Neutrase, Esperase and Purafect. MR was induced by heating the LMW peptides in the presence of sucrose for 2h at 90...

The efficiencies of different transformation methods of E. coli DH5Qalpha train, induced by several cations like Mg2+, Mn2+ Rb+ and especially Ca2+, with or without polyethylene glycol (PEG) and dimethyl sulfoxide (DMSO) were compared using the two commonly used plasmid vectors pCAMBIA1201 and pBI121. The widely used calcium chloride (CaCl2) method appeared to be the most efficient procedure, w...

three hundred and seventy seven patients with different degrees of heat stroke were treated by the haji medical team of the islamic republic of iran in 1371 (1992). studies were carried out on sex of the patients, time and intensity of occurance and the vital signs after a medical examination. the most important method of treatment employed for intense heat stroke was iced bath. this procedure ...

Ultrasound can be used both simultaneously or as a pretreatment technique for flotation to produce higher combustible recoveries, higher heat values, and lower ash data from raw hard coals. The recent research works have indicated that modifying coal surfaces, especially physical surface cleaning with the help of the cavitation process created by power ultrasound at certain frequency and time i...

background: enterotoxigenic escherichia coli (etec) strains are the major causes of diarrheal disease in humans and animals. colonization factors and enterotoxins are the major virulence factors in etec pathogenesis. for the broad-spectrum protection against etec, one could focus on colonization factors and non-toxic heat labile as a vaccine candidate. methods: a fusion protein is composed of a...

background heat shock protein 72 (hsp72) is responsible for maintaining critical cellular function during heat stress. hsp72 confers thermotolerance and may play a role in heat acclimation. animal research suggests a difference between sexes in hsp72 expression in response to exercise, however, human data is lacking. conclusion our findings suggest that men and women differ in their cellular st...

in this research, tribological characteristics of ni-p electroless coating and double-layered ni-p/ni-b electroless coating were studied. for this purpose, ni-p electroless coating with 25 μm thickness was initially applied to the surface of steel ck45 samples; then, a double-layered ni-p/ni-b electroless coating, including inner layer of ni-p with 15 μm thickness and outer layer of ni-b with 1...