نتایج جستجو برای: electrical resistance furnace
تعداد نتایج: 569078 فیلتر نتایج به سال:
Electrical stimulation has been used to prevent muscle atrophy, but this method is different in many previous studies, appropriate stimulation protocol is still not decided. Although resistance exercise has also been shown to be an effective countermeasure on muscle atrophy, almost previous studies carried out an electrical stimulation without resistance. It was hypothesized that electrical sti...
Abstract With the rapid development of copper-based composite in field electrical contact material industry, problem poor arc erosion resistance becomes more and prominent. Improving is an urgent to be solved. Cu-Al 2 O 3 /30Mo/3SiC 0.5Y /Cu-Al composites were prepared a fast-hot-pressing sintering furnace. The microstructure phase structure analyzed by using scanning electron microscope, trans...
Reinforcement spacers are a critical component of concrete structures. Their presence affects microstructure and transport properties cover though this is not widely appreciated. This paper presents the first study to determine whether negative effects can be mitigated through use supplementary cementitious materials such as silica fume, fly ash blast-furnace slag. Concrete samples (>200) with ...
In this paper, the effect of TiH2 and CaCO3 blowing agents was investigated on the structure and energy absorption of Al-7%Si-3%SiC composite metal foam by powder compact route. Composition of the foam was prepared from a mixture of Al, SiC and Si powders. Then, precursors were consolidated in H13 die mould by cold and uni-axial pressing at 110 MPa and at room temperature. The pressed precursor...
Using principle of minimum total potential energy approach in conjunction with Rayleigh-Ritz method, the electro-thermo-mechanical axial buckling behavior of piezoelectric polymeric cylindrical shell reinforced with double-walled boron-nitride nanotube (DWBNNT) is investigated. Coupling between electrical and mechanical fields are considered according to a representative volume element (RVE)-ba...
Introduction The heat-treating industry is in need of heat-treatment furnace materials and fixtures that have a long service life and reduced heat capacity. Many of the fixtures are consumed within 1 year of exposure in high temperature carburization atmospheres. Most of these fixtures are manufactured using heat resistant alloys. Iron-nickel based and iron-nickel-chromium based alloys are expe...
Local Tissue Electrical Resistances in Transpedicular Screw Application in the Thoracolumbar Region.
AIM To determine local tissue electrical resistance differences generated during a screw pass from the pedicle to another tissue rather than determining all individual electrical tissue resistance values. MATERIAL AND METHODS We attempted to measure electrical resistance values of regional tissues in addition to fluoroscopic imaging during application of fixation via a transpedicular screw. W...
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