Experimental investigations have been conducted for determination of effectiveness of employing a combination of three particle sizes (40 nm size, 1.75 μm size and 53 μm size) of Molybdenum Disulphide as anti-wear additive in a commercial lubricant. The conformal block and disk configuration has been used to conduct experiments for determination of wear of the sliding surfaces. The performance ...

The problem of sample size determination based on three commonly used non-parametric rank based tests, namely, one-sample Wilcoxon's rank sum test, two-sample's Wilcoxon's rank sum test, and the rank-based test for independence is studied. Explicit formulas for variabilities of the test statistics under the alternative hypotheses are derived. Consequently, close forms of power functions of thes...

This Application Note shows the determination of protein molecular weight and size, together with linear quantifi cation using the Agilent 1260 Infi nity Multi-Detector Bio-SEC Solution. The molecular weights and sizes of proteins, ranging from cytochrome C (11 kDa) to thyroglobulin (670 kDa) were correctly determined, independent of sample loading. Using the dual angle light scattering detecto...

In core–shell nanoparticle analysis, the determination of size distributions different particle parts is often complicated, especially in liquid media. Density matching introduced as a method for analyzing nanoparticles using Analytical Ultracentrifugation (AUC), making it possible to obtain core distribution dispersions. For this approach, density dispersion adjusted shell. Oil filled nanocaps...