A capillary electrophoresis method has been established for the determination of triptonide and triptolide in Multi-glycosides Tripterygium wilfordii tablets. Capillary separation was carried out by using 0.01mol L borax + 0.02 mol L boric acid + 0.02 mol L SDS (pH = 8.0) as the buffer, a fused – silica capillary tube column (60.2 cm × 75μm id. 52.6 cm of effective length) as the separation cha...

Two-phase passive heat transport devices such as vapor chambers, loop pipes, and capillary pumped loops utilize porous evaporators for phase change to drive fluid transport. Nucleate boiling can occur within capillary-fed evaporators, especially under high-heat-flux operation, has been visually observed in various experimental studies the literature. However, prior modeling efforts have typical...

The purpose of this study was to determine the effects of quinidine and mexiletine on the adaptation of ventricular refractoriness to a change in heart rate. The ventricular effective refractory period was measured at a basic drive cycle length of 500 msec with basic drive train durations of two beats, eight beats, 20 beats and 3 minutes. The ventricular refractory periods were measured in the ...

overall energy efficiency (oee) is an important indicator of energy consumption in tillage operations. tillage energy was studied objectivity to accurately measure the oee of mf399-4wd tractor. the tractor was equipped with different types of sensors to measure and calibrate the required data including: fuel consumption, actual forward speed, wheel speed and slippage, engine speed, draft and dr...

Efficient and facile generation of tiny droplets is critical to many cutting-edge applications, such as flexible electronic skin, customized circuits, micro-electro-mechanical systems. However, conventional piezoelectric inkjet printing techniques show more prominent problems high driving voltage relatively low frequency. Here, a novel principle for high-throughput droplet dispensing was propos...

Drive-by download attacks are common attack vector for compromising personal computers. While several alternatives to mitigate the threat have been proposed, approaches to realtime detection of drive-by download attacks has been predominantly limited to static and semi-dynamic analysis techniques. These techniques examine the original or deobfuscated JavaScript source code to assess the potenti...

Various indices of capillary supply to the rat heart were studied in neonatal rats injected for 2 or 4 weeks with protamine sulfate in saline (subcutaneously, 60 mg/kg body weight, 2 times/day). Cardiac capillarization was evaluated not only by traditional indices for the capillary supply, such as mean capillary density and myocyte-to-capillary ratio, but also by a more advanced morphometric me...

We observed that imbibition of various Rhodamine B-doped wetting liquids in an array of different-sized, horizontal, two-dimensional silica nanochannels terminated within the channels as a function of hydraulic diameter and liquid type. This front termination is not predicted by the classic Washburn equation for capillary flow, which establishes diffusive dynamics in horizontal channels. Variou...