نتایج جستجو برای: relative phase
تعداد نتایج: 962875 فیلتر نتایج به سال:
A high performance liquid chromatography method was studied for determination of 18 ?-glycyrrhetinic acid in Glycyrrhiza glabra L. (licorice) extract. The operating condition were C-18 reversed phase column (VP-ODS, (250×4.6 mm, 5 mm)) at room temperature, acetonitril/phosphoric acid (3/1) as mobile phase, at flow rate of 0.6ml/min (0-8min), 0.4ml/min (8-20min) and UV detection at 230 nm. The...
Thepurpose of present research was to answer to this question that how attentionalinstructions and increasing frequency of movement impress on relative phasestability in coordination bimanual movements? Participants (N=14) practiced inphase and anti phase under internal and external attention and increasingfrequency. In acquisition phase apply external v. internal attention and aftereach trial ...
In this paper, a non-isothermal two-phase flow in the cathode gas diffusion layer (GDL) of PEM fuel cell is modeled. The governing equations including energy, mass and momentum conservation equations are solved by numerical methods. Also, the optimal values of the effective parameters such as the electrodes porosity, gas diffusion layer (GDL) thickness and inlet relative humidity are calculated...
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