The first detailed quantitative observations of the two-dimensional collapse of a granular column along a horizontal channel are presented for a variety of materials. Together with the complementary study for the axisymmetric situation, we conclude that for granular collapses the generally accepted approaches, that are highly dependent on frictional parameters, do not describe the main flow phe...

objective(s):emap-like protein 5 (eml5) is a new echinoderm microtubule-associated protein that is expressed in the central nervous system. the aim of this study was to investigate the expression profile of eml5 in the anterior temporal neocortex of patients presenting with intractable epilepsy (ie). materials and methods:western blot assays were performed to determine eml5 expression in 36 sur...

during the epidemiological research of zoonoses, the authors have studied the rabies of wild animals : fox. for the scro lo-uical tests. the blood . was taken by heart puncture of foxes. 193 specimens were tested and 26 (13. 5%) o r the foxes had neut ralizing antibody in their blood. this study confirms that during the rabies epizooty. the vulpin population, may contract a non-fatal disease an...

this article elaborates on the experience of higher medical education evaluation in iran. although institutional evaluation in iran started in about a decade ago, recent policies of the government to increase quality of higher medical education have contributed to a special effort in designing and implementing evaluation mechanisms in university systems in iran. among these a process of interna...

This paper investigates the use of a new imaging system to measure the velocity and the mass flow distribution of fertiliser granules spread by a centrifugal device. The new acquisition system consists of a digital camera placed above the disc so that its view axis corresponds to the disc axle. This provides useful geometrical properties to develop a simple and efficient image processing. The t...

A new method based on generalized reflection and transmission coefficients is proposed to calculate the synthetic seismograms in radially multilayered media. This method can be used to efficiently simulate full waveform acoustic logs and crosswell seismic profiles in situations where we need to consider borehole effects. The new formulation is tested by comparing our numerical results with prev...

Because of the high noise levels radiated by military jet aircraft, it has been hypothesized that nonlinearity influences the propagation of the noise. A numerical model, which accounts for second-order cumulative nonlinearity, atmospheric absorption and dispersion, and geometrical spreading, has been developed to propagate jet noise waveforms. Numerical propagation of recorded waveforms from r...

We have detected a continuous seismic signal near 2.08 Hz using data from a portable seismic array, 1280 km long, deployed in Siberia and Mongolia. The signal can be observed on almost all the stations along the profile. The amplitude and the frequency of the signal show a clear daily cycle, and their temporal variations are similar at different stations, suggesting that the signals observed at...

The impact of droplets on liquid pools is ubiquitous in nature and many industrial applications. Most previous studies droplet focus Newtonian fluids, while less attention has been paid to the dynamics non-Newtonian droplets, even though fluids are widely used In this study, splashing shear-thinning with yield stress studied by combined experiments simulations. formation propagation ejecta shee...

The objective of this work is to propose a mechanical model and a numerical method devoted to the cytoskeleton (CSK) form-finding resulting from its structuration during cell spreading. It is now well assumed that the cell mechanics closely depends on its CSK architecture and on the tension and compression forces carried by its filaments. Several structural models have been therefore developed,...