The physical properties desired for various applications of aluminum alloys are usually modified by tailoring their precipitation behavior during heat treatment. In this study, the a cast Al–Mn alloy annealed with two heating methods (electric resistance and radiative furnace heating) at different temperature has been studied through electrical conductivity (EC) test, scanning electron microsco...

Heat pipe may be affected by the high temperature heat source during operation, resulting in unsteady oscillation heating. In this paper, influence of alternating power and period on start-up transfer performance mercury is studied using method equivalent thermal resistance pipe. The results are as follows:1) time heating steady-state basically equal; 2) For heating, changes periodically, incre...

Bipolar transistors are extremely sensitive to temperature variations. Moreover, the adoption of advanced isolation techniques such as silicon-on-insulator (SOI) and deeptrench isolation (DTI) to increase device speed also dramatically increases self-heating, due to the poor thermal conductivity of silicon dioxide. In many cases, an estimate of self-heating is needed before fabrication. However...

The features of the probe technique are described and results measuring parameters plasma generated by a planar magnetron sputtering system with pure boron target during coating deposition presented. A feature measurements was use heating collecting surface single Langmuir probe. Heating led to decrease in electrical resistance film on surface, which made it possible carry out situ discharge en...

A healable transparent capacitive touch screen sensor has been fabricated based on a healable silver nanowire-polymer composite electrode. The composite electrode features a layer of silver nanowire percolation network embedded into the surface layer of a polymer substrate comprising an ultrathin soldering polymer layer to confine the nanowires to the surface of a healable Diels-Alder cycloaddi...

The electrical transport and resistance switching mechanism in amorphous carbon (a-C) is investigated at the nanoscale. The electrical conduction in a-C thin films is shown to be captured well by a Poole–Frenkel transport model that involves nonisolated traps. Moreover, at high electric fields a field-induced threshold switching phenomenon is observed. The following resistance change is attribu...

This article utilizes the experimental method to investigate the thermal performance of heat sinks with one and two pairs of embedded heat pipes. A heat sink with embedded heat pipes transfers the total heat capacity from the heat source to both the base plate and heat pipes, and then disperses heat into the surrounding air via the forced convection. The heat transference from base plate to fin...

Hallum, J. V. (University of Pittsburgh, Pittsburgh, Pa.), and J. S. Youngner. Urea and thermal mutants of poliovirus. J. Bacteriol. 91:2305-2308. 1966.-Thermally selected mutants of poliovirus which differed in sensitivity to heating at 50 C were inactivated with urea. With 3 m urea, urea resistance paralleled thermal resistance. In contrast, when urea-resistant mutants were selected from ther...

Ferritic stainless steels are used for automobile exhaust parts because of their high heat and corrosion resistance. Among them, located upstream near the engine, so-called hot-end parts, example, manifolds, required to show excellent Since thermal fatigue is induced by repeating heating cooling with mechanical strain restriction, resistance one most important properties exhaust-parts materials.

Electron beam deposition of tungsten from W(CO)6 has been studied for a range of different height deposits. The resistance of the deposited tracks was found to decrease with increasing height implying that thicker deposits have a higher metallic cross section. It was also found that when the current limits were increased to values in excess of 100 μA, the resistance decreased with successive vo...