Most oil labs test industrial fluids at 40 and 100 degrees C. By using these two parameters, you can calculate the viscosity index and extrapolate the viscosity at whatever in-service temperature the compressor is operating. You should take the approach of setting both upper and lower limits on...
The present invention aims at meeting the need to increase the fusion viscosity index of hollow glassware to ensure a more efficient cooling of same, thereby reducing the manufacturing run. According to the invention, the inner area of the hollow glassware is crossed by a gas medium characterized...
At this stage, certain assumptions must be made. The shape of the membrane allows neglecting other spatial dimensions than that of the single one in the direction from one chamber of the apparatus to the other. Also, the internal dynamics of the membrane is orders of magnitude faster than tha...
A Baumé hydrometer is a tool used to find a solution'sspecific gravity, as well as to estimate its concentration. It looks like a thermometer with a bulb on one end and degrees marked along its length. After placing the hydrometer in the liquid, the degrees' reading corresponds to one of...
A fluid with high viscosity index meeting the defined MEHF performance level1 will outperform standard monograde (ASTM D6158 type HM) or engine oil-type fluids. The typical performance advantage in mobile equipment is in the range of 5 to 10 percent energy savings or productivity improvement. ...
To calculate the fluid loss from retinal blood-brain barrier we can use Starling equation for fluid filtration (Yuan and R.R., 2010), but to do this we need to estimate driving pressures and the hydraulic conductivity for the blood-brain barrier (in units of cm3 of transudate/s/cm H2O...
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Furthermore, through the HRR curve generated by cone calorimetry is possible to calculate the slope of the FIGRA (fire-growth rate) line, extending from the origin to the earliest, highest peak, providing an estimation of both the spread rate and the size of the fire, thus estimating the co...
The accuracy of these mathematical relations has previously been demonstrated in our previous study [20], and hence presenting its validation stage is excluded here for the sake of brevity. The main equations used to calculate the main performance and parameters of the RO unit are listed in ...
It is possible to calculate the expected average fragment size for a given genomic DNA if the percent GC content of the DNA and the recognition sequence of the restriction enzyme are known. For example, in a genome with 50% GC content and no dinucleotide bias, a four-cutter can be expecte...