virtual technology can be a useful tool for designing models of healthy urban environments. the resilience and sustainability in any urban environment involves the establishment and maintenance of the health of its citizens. the well-being of youth, the future workforce of every society, is a highly important consideration in the design of cities. cities are only truly sustainable when the work...

A mathematical model of an absorbing leaky epithelium is developed for analysis of solute coupled water transport. The non-charged driving solute diffuses into cells and is pumped from cells into the lateral intercellular space (lis). All membranes contain water channels with the solute passing those of tight junction and interspace basement membrane by convection-diffusion. With solute permeab...

this study deals with the visibility, influence rate of diffrent links in virtual universities websites. the current community research is consisted of websites of 21 non medical universities websites and 8 websites of iran medical universities. the websites have been retrieved by the use of searchin and goolge webometic tools and are downloaded on personal computers to analyze their links. the...

background: in-service education is one of the best and major methods to provide, train and improve the performance of the staffs. this study aims to determine the strengths and weaknesses of the virtual trainings from the staffs' perspective of mashhad university of medical sciences. methods: this is a cross-sectional study conducted among staffs from different parts of the therapy depart...

[1] We present results from the Mars Test Particle (MTP) simulation as part of a community-wide model comparison in order to quantify the role of different neutral atmospheric conditions in planetary ion transport and escape. This study examines the effects of individual ion motion by simulating particle trajectories for three cases: solar minimum without the neutral corona, solar minimum with ...

Abstract: The conventional pulse-width modulation rectifier has the low power factor and more sensors to detect the voltage and current of alternating current side. The traditional direct power control method possesses the defect of unfixed switching frequency. A new method based on three-phase voltage source pulse-width modulation rectifier with high power factor based on direct power control ...

This paper presents a virtual-physics based control framework for swarm robotic chemical plume tracing and source localization problem under ventilated indoor environment with complex turbulent conditions. The control force includes three kinds of effort, which are lattice formation force, plume tracing force, and obstacle avoidance force. The plume tracing and source identify strategy are base...