نتایج جستجو برای: permeability index

تعداد نتایج: 444814  

2010
Martine F. Krüse-Ruijter Frans B. Plötz Jos W.R. Twisk Carin M. Bunkers Willem P.F. Fetter Ruurd M. van Elburg

Mechanical ventilation (MV) and ventilator strategies can induce or aggravate lung injury and may contribute to the development of distant organ failure, including the gastrointestinal tract. A retrospective cohort study was performed among 61 preterm infants, with a gestational age of 25-36 weeks, admitted at a neonatal intensive care unit. Intestinal permeability was measured by the sugar abs...

2012
N. Shafiq M. F. Nuruddin S. C. Chin

This paper presents the experimental results of the investigation of various properties related to the durability and longterm performance of mortars made of Fly Ash blended cement, FA and Ordinary Portland cement, OPC. The properties that were investigated in an experimental program include; equilibration of specimen in different relative humidity, determination of total porosity, compressive ...

Journal: :The Science of the total environment 2001
H U Johner H Surbeck

A soil gas measurement method developed earlier, [Nucl Tracks Radiat Meas, 22(1-4) (1993) 468] was applied to boreholes drilled to below foundation depth. Radon concentration and permeability were measured at 50-cm intervals. In radon prone areas, permeability showed an increase with depth over several orders of magnitude, indicating a low permeability top layer with a thickness of 0.5 m and mo...

Journal: :American journal of hypertension 2006
Francesca Viazzi Giovanna Leoncini Elena Ratto Valentina Vaccaro Cinzia Tomolillo Valeria Falqui Angelica Parodi Novella Conti Giacomo Deferrari Roberto Pontremoli

BACKGROUND Microalbuminuria, a powerful predictor of cardiovascular events, is thought to reflect widespread subclinical vascular abnormalities. To explore the pathogenesis of increased urinary albumin excretion in primary hypertension we evaluated systemic capillary permeability and ambulatory blood pressure (BP) measurement in two groups of matched untreated patients with (n = 11) and without...

Journal: :Annals of nuclear medicine 2004
Berna Okudan Serdar Han Makbule Baldemir Mustafa Yildiz

DTPA clearance rate is a reliable index of alveolar epithelial permeability, and is a highly sensitive marker of pulmonary epithelial damage, even of mild degree. In this study, 99mTc-DTPA aerosol inhalation scintigraphy was used to assesss the pulmonary epithelial membrane permeability and to investigate the possible application of this permeability value as an indicator of early alveolar or i...

Journal: :Digestion 2011
Garth R Swanson Vanessa Tieu Maliha Shaikh Chris Forsyth Ali Keshavarzian

BACKGROUND Alcohol consumption is a potential trigger for inflammatory bowel disease (IBD) flare because of alcohol-induced oxidative stress and its deleterious effects on gut barrier function. Additionally, we have recently shown that alcohol consumption is associated with more symptoms in IBD. However, it is not known whether moderate daily alcohol consumption can modify IBD disease activity....

Journal: :Huan jing ke xue= Huanjing kexue 2009
Hui Liu Tao Huang Chi Zhang

Refuse degradation and landfill leachate treatment are the main research directions of landfill technology at present, but permeability characteristics of landfill body are paid little attention on. According to this actuality, the study selected four kinds of landfill's bodies under different pressures as study objects and tested the permeability characteristics in the stage of main compressio...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید