نتایج جستجو برای: load pressure

تعداد نتایج: 548029  

   In this paper, numerical results obtained and explained from an exact formula in relation to sound pressure load due to the presence of liquid inside the finite-length non-rigid carbon nanotubes (CNTs), which is coupled with the dynamic equations of motion for the CNT. To demonstrate the accuracy of this work, the obtained formula has been compared to what has been used by other research...

2000
Hossein Shayeghi Aref Jalili Heidar Ali Shayanfar Mohamad Pourabasi

The electric load is strongly related to meteorological conditions and forecast models depend on climatic studies. The most used variable is the air temperature, because there is a close relation between thermal state of well being and the corresponding load (air-conditioned apparatus for instance). Due to certain matters like the increase of cities and terrain geography, the air temperature ha...

A. Ghorbanpour Arani M. Mohammadimehr Z. S. Mousavi i

In this paper, using energy method, small scale effects on the buckling analysis of a double-walled carbon nanotube (DWCNT) under external radial pressure is studied. The constitutive equations derived for a DWCNT using the nonlocal theory of elasticity which Eringen are presented for the first time. By minimizing the second variation of the total energy for a DWCNT, hence, the value of the non...

Journal: :Journal of biomechanics 2013
Kyle S Jansson Max P Michalski Sean D Smith Robert F LaPrade Coen A Wijdicks

The purpose of the study was to evaluate the load output of a pressure sensor in the presence of liquid saturation in a controlled environment. We hypothesized that a calibrated pressure sensor would provide diminishing load outputs over time in controlled environments of both humidified air and while submerged in saline and the sensors would reach a steady state output once saturated. A consis...

Journal: :Hypertension 2008
Raouf Amin Virend K Somers Keith McConnell Paul Willging Charles Myer Marc Sherman Gary McPhail Ashley Morgenthal Matthew Fenchel Judy Bean Thomas Kimball Stephen Daniels

Questions remain as to whether pediatric sleep disordered breathing increases the risk for elevated blood pressure and blood pressure-dependent cardiac remodeling. We tested the hypothesis that activity-adjusted morning blood pressure surge, blood pressure load, and diurnal and nocturnal blood pressure are significantly higher in children with sleep disordered breathing than in healthy controls...

2016
Lindy Begg Patrick McLaughlin Mauro Vicaretti John Fletcher Joshua Burns

BACKGROUND The total contact cast (TCC) is an effective intervention to reduce plantar pressure in patients with diabetes and a plantar forefoot ulcer. The walls of the TCC have been indirectly shown to bear approximately 30 % of the plantar load. A new direct method to measure inside the TCC walls with capacitance sensors has shown that the anterodistal and posterolateral-distal regions of the...

2007
Gunnar Grossschmidt Mait Harf Ivan Zelinka Zuzana Oplatková Alessandra Orsoni

This paper deals with the design of a hydraulicmechanical load-sensing system using computer modelling and simulation in an object-oriented programming environment. As initial, the scheme of a hydraulic-mechanical load-sensing system of Bosch GMbH has been taken. A modified scheme of the system is proposed. The object-oriented mathematical model of the system is composed. The approach is based ...

Journal: :The Review of scientific instruments 2014
Matthew K Jacobsen Christopher J Ridley Artur Bocian Oleg Kirichek Pascal Manuel Dmitry Khalyavin Masaki Azuma J Paul Attfield Konstantin V Kamenev

Pressure generation at cryogenic temperatures presents a problem for a wide array of experimental techniques, particularly neutron studies due to the volume of sample required. We present a novel, compact pressure cell with a large sample volume in which load is generated by a bellow. Using a supply of helium gas up to a pressure of 350 bar, a load of up to 78 kN is generated with leak-free ope...

Journal: :Circulation. Cardiovascular imaging 2017
Brian R Lindman Catherine M Otto Pamela S Douglas Rebecca T Hahn Sammy Elmariah Neil J Weissman William J Stewart Girma M Ayele Feifan Zhang Alan Zajarias Hersh S Maniar Hasan Jilaihawi Eugene Blackstone Khaja M Chinnakondepalli E Murat Tuzcu Martin B Leon Philippe Pibarot

BACKGROUND After aortic valve replacement, left ventricular afterload is often characterized by the residual valve obstruction. Our objective was to determine whether higher systemic arterial afterload-as reflected in blood pressure, pulsatile and resistive load-is associated with adverse clinical outcomes after transcatheter aortic valve replacement (TAVR). METHODS AND RESULTS Total, pulsati...

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