نتایج جستجو برای: suction pressure soil

تعداد نتایج: 590314  

Journal: :Journal of orthopaedic surgery 2015
Qunn Jid Lee Wai Ping Mak Wai Sun Hau Sze Tsun Yeung Yiu Chung Wong Yuk Leung Wai

PURPOSE To compare the short-term outcome in patients with or without a drain (short duration and low suction pressure) following total knee replacement (TKR). METHODS A consecutive series of 106 women and 48 men (mean age, 69 years) underwent unilateral TKR. The first 77 patients used a low suction pressure (200 mm Hg) drain following TKR for 24 hours, and the next 77 patients used no drain....

خوشرفتار, ابراهیم,

          Suction of endotracheal tube in ICU can cause hemodynamic    changes. We compare the effect of lidocaine , fentanyl and placebo on    reducing hemodynamic changes following suction in ICU patient.           Patients were divided into three groups , each containing twenty ...

Journal: :Archives of disease in childhood. Fetal and neonatal edition 2001
E Saarenmaa P J Neuvonen P Huttunen V Fellman

AIM To assess the suitability of ketamine for relief of pain caused by tracheal suction during ventilator treatment in newborn infants. STUDY DESIGN In a randomised, double blind, cross over trial, 16 newborn infants received placebo or 0.5, 1, or 2 mg/kg ketamine as two minute infusions in random order five minutes before four separate endotracheal suctions, with intervals of at least 12 hou...

2008
Mary E. J. Lott Cynthia Hogeman Michael Herr Monica Bhagat Allen Kunselman Lawrence I. Sinoway

Lott ME, Hogeman C, Herr M, Bhagat M, Kunselman A, Sinoway LI. Vasoconstrictor responses in the upper and lower limbs to increases in transmural pressure. J Appl Physiol 106: 302–310, 2009. First published November 13, 2008; doi:10.1152/japplphysiol.90449.2008.—The purpose of this study was to examine upper and lower limb vasoconstrictor responses to changes in transmural pressure in humans. Br...

Journal: :Civil engineering and architecture 2021

Due to high swelling-shrinkage caused by climate change, expansive soil is a significant problem in light construction, road embankments, and slope stability (wet dry). The physical mechanical properties of the are affected repeated drying wetting cycles, particularly changes volume, negative pore water pressure (suction), compressive strength. Fly ash used increase strength reduce plasticity s...

Journal: :Investigative ophthalmology & visual science 1997
C E Riva P Titze M Hero B L Petrig

PURPOSE To investigate the relationship between choroidal blood velocity (ChBVel), blood volume (ChBVol) and blood flow (ChBF) in the foveal region of the human ocular fundus and ocular perfusion pressure and to determine whether the choroidal circulation has some autoregulatory capacity. METHODS Measurements of ChBVel, ChBVol and ChBF were obtained by laser Doppler flowmetry in healthy subje...

Journal: :E3S web of conferences 2023

Slope failure is a common phenomenon all over the world on both man-made and natural slopes. Prolonged rainfall one of climatic factors which largely responsible for slope failure. During heavy prolonged rainfall, part rainwater infiltrates through soil seeps into slope. The infiltrated water lowers matric suction increases porewater pressure. Eventually, generated pressure decreases strength r...

ژورنال: علوم آب و خاک 2019

Nowadays, the Beerkan computational algorithms (BESTslope and BESTsteday) are known as the suitable indirect methods for estimating soil saturated hydraulic conductivity (Ks) and sorptivity (S), as well as the scale parameter (hg) in van Genuchten soil water retention equation through the data collected in the Beerkan infiltration experiment and other required data. The purpose of this study wa...

Journal: :Advances in Civil Engineering 2021

The hysteresis characteristics of soil-water characteristic curves (SWCCs) under dry-wet cycling conditions are very important for understanding unsaturated soil properties, so it is crucial to propose an accurate and efficient method predicting the hysteretic behaviors SWCCs. To this end, paper investigates SWCCs in full suction range seven kinds Hunan red clay with different initial dry densi...

Journal: :American journal of physiology. Heart and circulatory physiology 2011
Espen W Remme Anders Opdahl Otto A Smiseth

We investigated the determinants of ventricular early diastolic lengthening and mechanics of suction using a mathematical model of the left ventricle (LV). The model was based on a force balance between the force represented by LV pressure (LVP) and active and passive myocardial forces. The predicted lengthening velocity (e') from the model agreed well with measurements from 10 dogs during 5 di...

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