In a recent paper 1 (henceforth referred to as AHNS) the static Kosterlitz-Thouless picture of superfluidity in two dimensions 2-4 has been generalized to describe dynamic processes in thin 4He films. A detailed comparison between this dynamic theory and data from torsional .oscillator experiments has shown good agreement: In AHNS, the authors also make certain predictions regarding the propaga...

Striking morphologic similarities between Machupo, Tacaribe, and lymphocytic choriomeningitis viruses were found by thin-section electron microscopy. It is proposed that these viruses be brought together into a single taxonomic group.

Impact is one of very important subjects which always have been considered in mechanical science. Nature of impact is such that which makes its control a hard task. Therefore it is required to present the transfer of impact to other vulnerable part of a structure, when it is necessary, one of the best method of absorbing energy of impact, is by using Thin-walled tubes these tubes collapses unde...

This paper is concerned with investigating of the plastic behaviour on gap K-joints truss girders, made from thin-walled rectangular hollow section members. An experimental study was carried out a full-scale girder under concentrated load two central nodes. A numerical analysis using ABAQUS in order to clearly see this type joint and make comparison experimentation. will it possible examine att...

The spatial resolution of X-ray microanalysis has been investigated by Monte Carlo calculatio~s, including knock-on secondary electron production. The results for AuMa in a lOOOA thin Au film at 100 keV showed an appreciable difference from the ones without knock-out events. Also calculations have been done with the Mott cross-section instead of the screened Rutherford cross-section for elastic...

The elasticity of biological tissues is one the physical characteristics and has attracted attention as a clinical diagnostic parameter. can be determined on microscopic scale with speed sound (SoS) measurements using acoustic microscopy. In SoS measurements, thin-sliced section attached to glass slide in same manner light specimen. There are two main methods for preparing thin sections: paraff...

Comparative study of microfossils from two kinds of sediments: chert intercalations (studied in thin section) and phosphorite/phosphatic carbonate (in thin section and maceration), from the upper Neoproterozoic Doushantuo phospho− rites in the Weng’an area, Guizhou Province, South China, shows that the phosphatized Megasphaera ornata and the chert−preserved Tianzhushania tuberifera should be re...

To predict multiphase flow through geologically realistic porous media, it is necessary to have a three-dimensional (3D) representation of the pore space. We use multiple-point statistics based on two-dimensional (2D) thin sections as training images to generate geologically realistic 3D pore-space representations. Thin-section images can provide multiple-point statistics, which describe the st...

Energy absorption capability of thin-walled structures with various cross sections has been considered by researchers up to now. These structures as energy absorbers are used widely in different industries such as automotive and aerospace and protect passengers and goods against impact. In this paper, mechanical behavior of thin-walled aluminum tubes with and without polyurethane foam filler su...

This paper describes a method to model thin-film fully-depleted (FD) silicon-on-insulator (SOI) MOSFETs at frequencies where the quasi-static model is no longer valid. The method consists in considering a cascade of several elementary MOSFET transistors or sections and applying the quasi-static analysis to each section. Important second-order effects such as mobility degradation and velocity sa...