نتایج جستجو برای: particle particulate matter

تعداد نتایج: 391311  

2008
Yong H. Huang James E. Saiers Judson W. Harvey Gregory B. Noe Steven Mylon

[1] The movement of particulate matter within wetland surface waters affects nutrient cycling, contaminant mobility, and the evolution of the wetland landscape. Despite the importance of particle transport in influencing wetland form and function, there are few data sets that illuminate, in a quantitative way, the transport behavior of particulate matter within surface waters containing emergen...

2011
S. Ikezawa M. Wakamatsu

In this paper, composition analysis using scanning electron microscopy/energy-dispersive Xray spectroscopy analysis (SEM-EDX) and laser-induced breakdown spectroscopy (LIBS) for particulate matter in diesel exhaust is presented. Conventionally, scanning mobility particle sizer (SMPS) has been widely used to obtain particle size distribution of the suspended particles. However, real-time analysi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1385

چکیده ندارد.

Oxidation of sulfide-containing ores is the main cause of Acid Mine Drainage (AMD), which is an environmental problem associated with both the abandoned and active mines. Iron-bearing sulfide minerals can be oxidized and form mine waters with high sulfate content, low pH, high electrical conductivity, high redox potential, and high concentrations of iron, aluminum, and other heavy metals. In th...

Journal: :American journal of physiology. Lung cellular and molecular physiology 2003
Beek Yoke Chin Michael A Trush Augustine M K Choi Terence H Risby

Respirable particulate matter generated during incomplete combustion of fossil fuels may principally target the cells found in the distal region of the lung. This study characterizes some of the effects that a model particulate matter has on the induction of heme oxygenase (HO)-1 in macrophages. HO-1 is a highly inducible stress response gene that has been demonstrated to modulate chemical, phy...

Introduction: Particulate matter (PM) increases the risk of heart disorders. Gallic acid (GA) with strong antioxidant properties has shown an effective role in reducing the complications of various diseases. The aim of this study was to evaluate the protective effect of Gallic acid in preventing cardiac arrhythmias due to exposure to particulate matter. Methods: In this study, 40 rats were pla...

Journal: :Annals of the New York Academy of Sciences 1969
B Trasen

The introduction of particulate matter into the bloodstream has been found-both experimentally with animals and clinically with patients-to cause blockages of minor blood vessels and capillaries in key organs of the body. The most common results have been lesions and granulomas in the capillaries of the lung. The particulate matter is generally introduced into the vascular system by means of in...

Journal: :iranian journal of pharmaceutical sciences 0
majid cheraghali food and drug control laboratory, ministry of health and medical education,tehran, iran department of pharmacology, baqyyatollah university of medical sciences, tehran, iran hashem montaseri faculty of pharmacy, shiraz university of medical sciences, shiraz, iran forough jamei faculty of pharmacy, shiraz university of medical sciences, shiraz, iran koulsoum khairollahi food and drug control laboratory, ministry of health and medical education,tehran, iran

in order to ensure the safety of parenterals, international pharmacopoeias and national standards have set up stringent guidelines and standards. particulate con- tamination is a potential health risk caused by intravenous injection of particles large enough to potentially clog the small arteries. particles could be produced through manufacturing and packaging or even dispensing of the pharmace...

Journal: :international journal of environmental research 2010
p. razos a. christides

in the industrial area of elefsis, greece, aerosol samples from the atmosphere were collected using a stacked filter unit sampler, which separates the airborne particulate matter into coarse (pm2.5-10) and fine (pm2.5) size fractions. the samples collected during the period january 2005 to march 2006, were analyzed by anodic stripping voltammetry (asv) and inductively coupled plasma atomic emis...

ژورنال: سلامت و محیط زیست 2010
علیزاده داخل, اصغر, قویدل, آریامن, پناهنده, محمد,

Backgrounds and Objectives: The dispersion of particulate matter has been known as the most serious environmental pollution of cement plants. In the present work, dispersion of the particulate matter from stack of Kerman Cement Plant was investigated using Computational Fluid Dynamics (CFD) modeling.Materials and Methods: In order to study the dispersion of particulate matter from the stack, a ...

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