نتایج جستجو برای: particulate dispersion

تعداد نتایج: 89627  

Today, the cement industry is one of the major air polluting industries in the world. Hence, in this study, owing to the importance and role of contaminants from the plant, an appraisal of the emission contributions in addition to other factors have been discussed. There are several reasons behind the importance of modeling air pollutants. First, the assessment of standards for air pollution, a...

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...

Journal: :مجله دانشگاه علوم پزشکی کرمانشاه 0
farideh golbabaii professor, department of occupational health, tehran university of medical sciences abbas ali mokhtari msph, department of occupational health, tehran university of medical sciences abbas rahimi assistant professor, department of statistics and epidemiology, tehran university of medical sciences sayed jamalledin shahtaheri professor, department of occupational health, tehran university of medical sciences

introduction: metalworking fluids (mwfs) are widely used in metal working operations for cooling down, lubricating and reducing the friction between tools and work pieces which result in controlling the heat produced. exposure to mwfs causes several adverse effects including respiratory problems, skin diseases, cancer and even infertility. this study examines workers’ exposure to mwf mist and t...

2015
Xuezhi Yin Linda Sharon Daintree Sheng Ding Daniel Mark Ledger Bing Wang Wenwen Zhao Jianping Qi Wei Wu

This research aimed to develop a supercritical fluid (SCF) technique for preparing a particulate form of itraconazole (ITZ) with good dissolution and bioavailability characteristics. The ITZ particulate solid dispersion was formulated with hydroxypropyl methylcellulose, Pluronic F-127, and L-ascorbic acid. Aggregated particles showed porous structure when examined by scanning electron microscop...

2011
F. Gillet

Testate amoebae (TA) associated with terrestrial mosses are increasingly used in ecological and ecotoxicological studies. The TA community is sensitive to changes in its environment (climate change, metal or gas pollution). In this study, a “bryophyte-TA” microsystem was investigated as an indicator of dry particulate deposition and NO2 atmospheric concentration over an 8-month period in rural,...

ژورنال: سلامت و محیط زیست 2016

Background and Objective: Increasing population growth and construction of high-rise buildings have doubled the amount of environmental pollution in the cities. Moreover, people use the open urban spaces more than before in order to meet their ecological needs. Accordingly, some parameters such as various vegetation and continuous winds streams can be considerably influential in transmittance o...

1999
Jason Ching Daewon Byun

Models-3, a flexible software framework, and its Community Multiscale Air Quality (CMAQ) modeling system form a powerful third generation air quality modeling and assessment tool designed to support air quality modeling applications ranging from regulatory issues to science inquiries on atmospheric science processes. The CMAQ system can address tropospheric ozone, acid deposition, visibility, f...

ژورنال: سلامت و محیط زیست 2013
جباری, حسین, جمشیدی, ارسلان, رایگان شیرازی نژاد, علیرضا, رضایی, سهیلا, سادات, عبدالمحمد, ندافی, کاظم, یونسیان, مسعود,

Background and Objectives: In recent years exposure to fine airborne particles has been identified as an important factor affecting human health. Epidemiological studies have showed that the aerosol laden air can be an agent for microorganisms’ dispersion. Ignoring internal sources, ambient air quality significantly affects indoor air quality. Since people spend most of their times in the indoo...

Journal: :Journal of the Air Pollution Control Association 1982

Journal: :Journal of the Japan Institute of Metals and Materials 1990

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