نتایج جستجو برای: hydrostatic stiffness

تعداد نتایج: 51677  

Journal: :Civil and Environmental Engineering 2023

Abstract In this paper, a new masonry construction is proposed based on honey beehive cell internal geometry as unique structure and hydrostatic pressure principle. The considered experimental program involved suggestion, manufacturing, testing analysis of specimens units’ arrangement well corresponding custom arrangement, two classes cementations bonding mortars are used. Plan strain concept S...

Journal: :Calcolo 2021

We focus on the development of well-balanced Lagrange-projection schemes applied to one-dimensional blood flow system balance laws. Here we neglect friction forces and source term is due presence varying parameters as cross-sectional area at equilibrium arterial stiffness. By mean that method preserves “man eternal rest” solution. For this purpose present two different strategies: former requir...

Journal: :journal of structural engineering and geo-techniques 2012
m panji j asgari marnani sh tavousi tafreshi

there are various parameters that affect stability and expansion of failure zones in under pressure tunnels. among the important parameters that affect failure zones around the tunnels are cohesion and internal friction angle of the rock mass. in addition, the cross sectional shape is the considerable point in failure distribution around the tunnels. the stress analysis method is one of the app...

2014
Yanqin Zhang Weiwei Li Zeyang Yu Yonghai Li Junpeng Shao Hui Jiang

The multipad circular guide hydrostatic bearing of heavy-duty CNC machine is taken as the research object. Based on the lubrication properties of the heavy hydrostatic bearing, viscosity-temperature equation of interstitial fluid is established in various viscosities. In accordance with factory actual production, the fluid critical from laminar to turbulent is calculated by finite volume method...

Journal: :American journal of physiology. Regulatory, integrative and comparative physiology 2009
Ryuhei Inamoto Takenori Miyashita Kosuke Akiyama Terushige Mori Nozomu Mori

To clarify the role of the endolymphatic sac (ES) in the regulation of endolymphatic pressure, the effects of isoproterenol, a beta-adrenergic receptor agonist, and acetazolamide, a potent carbonic anhydrase inhibitor, both of which decrease ES direct current potential on cochlear hydrostatic pressure, were examined in guinea pigs. When isoproterenol was applied intravenously, hydrostatic press...

Journal: :The Journal of experimental biology 1986
J A Riegel

Hydrostatic pressures in the renal vasculature of hagfish have been studied. Estimates of the blood colloid osmotic pressure (COP) have been made. In blood vessels supplying the renal corpuscles, the average hydrostatic pressure is about 1 kPa. The average hydrostatic pressure falls to a value of 0.04 kPa within the postcardinal vein efferent to the renal corpuscle. Within the glomerular capill...

Journal: :journal of theoretical and applied vibration and acoustics 0
ali mokhtari department of mechanical engineering, isfahan university of technology, isfahan 84156-83111, iran vahid sarvestan department of mechanical engineering, isfahan university of technology, isfahan 84156-83111, iran hamid reza mirdamadi department of mechanical engineering, isfahan university of technology, isfahan 84156-83111, iran

in this article, vibration analysis of an euler-bernoulli beam resting on a pasternak-type foundation is studied. the governing equation is solved by using a spectral finite element model (sfem). the solution involves calculating wave and time responses of the beam. the fast fourier transform function is used for temporal discretization of the governing partial differential equation into a set ...

Journal: :Journal of applied physiology 2008
Jan T Groothuis Fleur Poelkens Constantijn W Wouters Miriam Kooijman Maria T E Hopman

Leg vascular resistance is calculated as the arterial-venous pressure gradient divided by blood flow. During orthostatic challenges it is assumed that the hydrostatic pressure contributes equally to leg arterial, as well as to leg venous pressure. Because of venous valves, one may question whether, during orthostatic challenges, a continuous hydrostatic column is formed and if leg venous pressu...

2007
Andre Delano Smith James Gorman Kevin Dyer

In practice, the submarine's major internal equipment is mounted to welded plating foundations, but submarine designers have been looking at the recent French innovation whereby the major internal equipment is mounted to a large truss/cradle structure through point supports. The focus of this research investigates the effects of radial point supports on the stability behavior of cylindrical she...

2016
Chunyan Li Quanan Zheng

Hydrostatic condition is a common assumption in tidal and subtidal motions in oceans and estuaries. Theories with this assumption have been largely successful. However, there is no definite criteria separating the hydrostatic from the non-hydrostatic regimes in real applications because real problems often times have multiple scales. With increased refinement of high resolution numerical models...

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