نتایج جستجو برای: void ratio

تعداد نتایج: 511231  

Journal: :Journal of the American Society of Nephrology : JASN 2009
Elsbeth C Witte Hiddo J Lambers Heerspink Dick de Zeeuw Stephan J L Bakker Paul E de Jong Ronald Gansevoort

Measurement of urinary albumin excretion (UAE) in a 24-h collection is the gold standard method to determine the presence of microalbuminuria. We sought to compare more practical alternatives--measurement of urinary albumin concentration (UAC) or albumin:creatinine ratio (ACR)--in a first morning void or in a spot urine sample with this gold standard. We asked 241 participants of a prospective ...

ژورنال: علوم آب و خاک 2013
جمال عبداللهی, , علی رئیسی استبرق, , مهرداد مقدس, ,

Expansive soils swell and shrink periodically when subjected to seasonal water content changes. As a result, they are a constant source of problem in the design and construction of foundations. In this study, the behaviour of an expansive soil was studied through a number of experiments involving cycles of wetting and drying using three different water qualities. Laboratory tests were performed...

ژورنال: سنجش و ایمنی پرتو 2014

Precise measurement of void coefficient in two phase flow is one of important parameters in thermal hydraulic parameters such as average density, two phase flow pressure drop and two phase flow pattern. In this study the void coefficient has been correlated experimentally based on attenuation coefficient gamma ray emitted form 137Cs source passing a rectangular channel. The average void fractio...

Journal: :Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 2020

Journal: :Journal of analytical toxicology 2002
A W Jones

Specimens of venous whole blood and two successive urinary voids were collected from 450 individuals apprehended for driving under the influence of alcohol in Sweden. The first specimen of urine (UAC-1) was obtained as soon as possible after arrest, and the second void (UAC-2) was collected about 60 min later (mean 66 min, range 30-130). A specimen of venous blood was drawn approximately 30 min...

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