نتایج جستجو برای: temperature dependent
تعداد نتایج: 1107701 فیلتر نتایج به سال:
Frozen samples of aqueous solutions of oxidized Pt 6-methyl-uracil "blue" were studied bv ESR spectroscopy at temperatures T ranging between —196 °C and —10 °C. When T was raised a distinct change in the line pattern was observed at about —35 °C. The resulting type of spectrum is very similar to the ESR spectrum of MAGNUS' Green Salt. The observed effect is suggested to be due to a change of th...
Self-assemblies dominated by coordination interaction are hardly responsive to thermal stimuli. We show that in case the coordinating mode changes with temperature, the resultant assemblies also exhibit temperature dependence. The self-assemblies are constructed with perylene tetracarboxylate and metal ions. Compounds containing a perylene skeleton often self-assemble into micro-belts, which is...
a semi-empirical mathematical model for predicting physical part of ignition delay period in the combustion of direct - injection diesel engines with swirl is developed . this model based on a single droplet evaporation model . the governing equations , namely , equations of droplet motion , heat and mass transfer were solved simultaneously using a rung-kutta step by step unmerical method . the...
abstract in the present research solution of chalcopyrite in sulfuric acid in hydrometallurgy method using electrochemistry with cyclic voltammetry technique has been investigated. the value of maximum reduction peak current of copper ions represents the measure of solubility. in this research different parameters temperature, potential, potential exert time, chalcopyrite concentration, sulfur...
owing to elastic and viscous characteristics embedded rubber compounds, the dissipated energy from periodic deformation is converted into heat generation and consequently, the tire may have different body temperatures for different operating conditions. in most performed investigations, just temperature distribution is considered and the mechanical behaviour of rubber parts which are highly tem...
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