Penetration of 3–10 nm particles through a metal grid has been measured using different experimental methodologies. Two basic schemes have compared: (i) the upstream-downstream (UD), where particle penetration is determined from comparison between aerosol number concentrations at two sampling points, one placed upstream, other downstream, filter; and (ii) filter-dummy (FD), in which outlet geom...

for a determination of soil characteristics one should have access to instruments that can measure these characteristics, including: soil penetration resistance with high accuracy. one of the accurate instruments commonly employed in soil penetration determinations is cone penetrometer. this apparatus, by measuring soil cone index at different soil depths can provide useful about information ab...

The membrane penetration effect will significantly influence the measurement of specimen volume deformation in triaxial test. This paper presents a novel procedure for measuring and correcting rubber by using newly developed multiscale apparatus. A series tests on coarse granular materials was conducted with different diameters, it is found that proportion change due to decreases linearly incre...

The liquefaction resistance of soil can be evaluated using laboratory tests such as cyclic simple shear, cyclic triaxial, cyclic torsional shear as well as field methods like Standard Penetration Test (SPT), Cone Penetration Test (CPT) and Shear Wave Velocity (Vs). In this regard, this study attempts to compare the results of the SPT based on the simplified procedure proposed by Seed and Idriss...

Penetration of liquid pesticides through textile materials is a criterion for determining the performance of protective clothing used by pesticide handlers. The pipette method is frequently used to apply liquid pesticides onto textile materials to measure penetration. Typically, analytical techniques such as Gas Chromatography (GC) are used to measure percentage penetration. These techniques ar...