The characteristic heat shock or stress response is induced upon exposure of an organism (cell) to a number of environmental stressors, e.g. heat, anoxia and heavy metals (reviewed in Morimoto et al. 1990; Ellis and van der Vies, 1991). The heat shock or stress proteins are the most broadly distributed class of proteins known and amongst the most highly conserved. These stress proteins and thei...

This study investigated auto-ignition characteristics of ammonia-air and ammonia-hydrogen-air laminar turbulent mixing layers by means direct numerical simulations (DNS) under elevated pressure conditions. The results show that hydrogen addition accelerate the process, reducing delay time. Analysis heat release rate revealed first peak corresponds to increment appearance in temperature (inducti...

objective: this study was designed to investigate the antinociceptive effect of chronic administration of the flavonoid hesperetin in streptozotocin-diabetic rats using formalin and hot tail immersion tests. materials and methods: rats were divided into 5 control groups, hesperetin-treated control, diabetic, sodium salicylate (ss)-treated diabetic, and hesperetin- and glibenclamide-treated dia...

Aalto University, P.O. Box 11000, FI-00076 Aalto www.aalto.fi Author Huynh Van Khang Name of the doctoral dissertation Resistive Loss Modelling for Inverter-fed Induction Motors Publisher School of Electrical Engineering Unit Department of Electrical Engineering Series Aalto University publication series DOCTORAL DISSERTATIONS 162/2012 Field of research Electromechanics Manuscript submitted 10 ...

Pulse-width modulated (PWM) adjustable frequency drives (AFDs) are extensively used in industries for control of induction motors. It has led to significant advantages in terms of the performance, size, and efficiency but the output voltage waveform no longer remains sinusoidal. Hence, overshoots, high rate of rise, harmonics and transients are observed in the voltage wave. They increase voltag...

There is as yet no conclusive evidence for the heritability of pain sensitivity in humans. We performed a classical twin study to evaluate the relative contributions of genetic and environmental factors on responses to painful stimuli in women. Ninety-eight pairs of twins, 51 monozygotic (MZ) and 47 dizygotic (DZ), were recruited from the TwinsUK adult registry held at St Thomas' Hospital, Lond...

This study aimed to compare the efficiency of the thermal blanket and thermal mattress in the prevention of hypothermia during surgery. Thirty-eight randomized patients were divided into two groups (G1 - thermal blanket and G2 - thermal mattress). The variables studied were: length of surgery, length of stay in the post-anesthetic care unit, period without using the device after thermal inducti...

Thermally actuated shape memory polymers (SMPs) interest, both academically and industrially, due to their ability to memorize a permanent shape that is set during processing and a temporary shape that is later programmed by manipulation above a critical temperature, either Tg or Tm. However, the thermal triggering process for SMPs is usually retarded compared to that of shape memory alloys, be...

The characteristics of steels during electroplating or induction heating are very complex. Induction heat-treating of steel has become increasingly important as a means of reducing cost and improving the quality of carbon steel components. The use of high frequency (40 to 2OOkHz) offers many advantages, but tooling and cycle optimization is complex and time consuming. Approximate analytical met...