نتایج جستجو برای: threshold velocity

تعداد نتایج: 260642  

Journal: :Papers in Meteorology and Geophysics 1969

K.H Faraji Mahyari M Faraji Mahyari, S Fardpour

The main goal of this research is to analyse the effect of angular velocity on stability and vibration of a simply supported Rayleigh rotating shaft. To this end, non-dimensional kinetic and potential energies are written while lateral vibration is considered. Finite element method is employed to discrete the formulations and Linear method is applied to analyse instability threshold of a rotati...

Journal: :Journal of Geophysical Research: Atmospheres 2000

Journal: :Revista Paulista de Educação Física 1998

ژورنال: علوم آب و خاک 2015
میرمحمدصادقی, مسعود, جعفری شالکوهی, عطا , روشن ضمیر, محمدعلی , وفائیان, محمود ,

A laboratory research program was arranged to study the effect of different factors influencing the stability of fine soils against wind action. For this purpose, a laboratory wind tunnel was stabilized and several soil samples were examined by putting the sample trays inside the wind tunnel for different rates of wind velocities. The tray for soil samples was 20´30 cm2 with the depth of 5 cm, ...

ژورنال: مواد پرانرژی 2016

In this study, the method of molecular dynamics simulation is performed to investigate the effect of voids on shockwave propagation in solid argon. The case study is a non-interactive solid modeled by Buckingham potential function. The shockwave is generated using the motion of a piston with different velocities in the solid that leads to increase the temperature after its propagation. The resu...

Journal: :Frontiers in physiology 2016
Thiago S. Rosa Herbert G. Simões Marcelo M. Rogero Milton R. Moraes Benedito S. Denadai Ricardo M. Arida Marília S. Andrade Bruno M. Silva

Severe obesity affects metabolism with potential to influence the lactate and glycemic response to different exercise intensities in untrained and trained rats. Here we evaluated metabolic thresholds and maximal aerobic capacity in rats with severe obesity and lean counterparts at pre- and post-training. Zucker rats (obese: n = 10, lean: n = 10) were submitted to constant treadmill bouts, to de...

2008
Jiri Pospisil Miroslav Jicha

In this paper authors focus on determination of the threshold velocity of re-suspension for particles 10 m in an urban street canyon with two-way traffic. The urban wind threshold velocity of re-suspension is derived from a long-term measurement carried out in the city of Brno. A numerical modelling based on the finite volume method is used for a detail study of the relation between a wind velo...

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