We report on the feasibility of deriving microphysical parameters of bimodal particle size distributions from Mie-Raman lidar based on a triple Nd:YAG laser. Such an instrument provides backscatter coefficients at 355, 532, and 1064 nm and extinction coefficients at 355 and 532 nm. The inversion method employed is Tikhonov's inversion with regularization. Special attention has been paid to exte...

Abstract: Most properties of nanoparticles are size-dependent. In fact, the novel properties of nanoaprticles do not prevail until the size has been reduced to the nanometer scale. The particle size and size distribution of alumina nanoparticle, as a critical properties, have been determined by transmission electron microscopy (TEM), photon correlation spectroscopy (PCS), surface area analysis ...

ultrasonography is a useful procedure in evaluation of spleen size in different clinical conditions. in this study, we used it to evaluate spleen size in patients with various heptologic, hematologic and autoimmune diseases. to express spleen size, a spleen index (si), the product of the transverse diameter and its perpendiculr diameter measured on the maximum-sectional image of the spleen, was...

particle size, board density and adhesive content are the most important factors, influencing on physical and mechanical properties of particleboard. in this study the effects of density, adhesive content and particle size on withdrawal strength of particleboard made from populus (populus alba) particles have been studied. three levels of density including 0.65, 0.7, and 0.75 g/cm3, three level...

[1] This paper describes new and modified numerical techniques for solving the sizeand time-dependent aerosol processes of nucleation, coagulation, condensation, dissolution, and reversible chemistry among multiple aerosol particle size distributions and the gas phase and over the entire relative humidity (RH) range. The techniques treat particle number, mole, and volume concentrations, solutio...

Abstract: This work proposes the methodology to obtain a correlation between particle size of rock material and point load test index (Is 50), in order characterize materials, present mining projects terms resistance. For correct development activities, both open pit (quarries) underground (mines), it is important determine compressive strength rocks, since, through it, geomechanical classifica...

Correlation between traffic density and particle size distribution in a street canyon and the dependence on wind direction J. Voigtländer, T. Tuch, W. Birmili, and A. Wiedensohler Leibniz Institute for Tropospheric Research, Leipzig, Germany UFZ Center for Environmental Research, Department of Human Exposure Research and Epidemiology, Leipzig, Germany Received: 14 February 2006 – Accepted: 6 Ma...

We show that disorder-induced interaction between guided modes and a flat band of low-Q radiating modes in planar arrays of dielectric particles can lead to frequency-selective omni-directional scattering of light. This phenomenon is numerically observed in planar arrays consisting of periodically arranged dielectric particles with small randomness in particle sizes. The flat band of low-Q radi...