نتایج جستجو برای: and nitrogen dioxide no2 into the air pollution standard index in 1997

تعداد نتایج: 24206134  

2013
S. Anand Kumar Varma M Srimurali

Nitrogen dioxide (NO2) is noxious, phototoxic and causes eutrophication. NO2 is one of the major precursors of ground level ozone pollution. Emission rates and emission concentrations of various pollutants from stationary sources of power plant emissions are calculated using Emission Inventory methodologies. Ground level concentrations of Nitrogen oxide (NOx) pollution are predicted by Gaussian...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیخ بهایی - دانشکده زبانهای خارجی 1391

even though, to date, a lot of studies have been conducted on the subject of politeness theory, there are very few studies regarding the applicability of this theory to translation between english and persian which shows the reason behind conducting the present study. this study was carried out with the aim of highlighting whether there is any difference between english and persian methods of u...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد گرمسار - دانشکده علوم انسانی 1391

abstract the following study, in the first place, attempted to examine the effect of less experienced teachers participation in experienced teachers classes on their own skills and teaching methodology, in the second place, attempted to find out the role of teachers training in students achievements. for this purpose, 21 efl teachers were selected according to available sampling in kish l...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم پزشکی 1389

introduction: diabetes mellitus is an growing national and international public health concern. the number of people affected by diabetes in world by 2030 will be 69% in developing countries. regular physical activity plays a key role in the management of type 2 diabetes melitus, particularly glycemic control. it has been recommended that peoples with type 2 diabetes participate in moderate-int...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یاسوج - دانشکده ادبیات و علوم انسانی 1392

the effect of learning strategies on the speaking ability of iranian students in the context of language institutes abstract language learning strategies are of the most important factors that help language learners to learn a foreign language and how they can deal with the four language skills specifically speaking skill effectively. acknowledging the great impact of learning strategies...

Background and Objectives: There is a direct relationship between the air quality and human health. In this research, the air quality of Rafsanjan city was monitored regarding the concentration of some pollutants  within a year. Materials and Methods: In this descriptive study, portable particle counter and air analyzer were used. Measurement of air pollutant parameters was done every two week...

ژورنال: سلامت و محیط زیست 2013
احمدی مقدم, مهدی, محمودی, پرویز,

Background and Objectives: Exceeding the standard level in most cases, Tehran air pollution has become a national environmental challenge. Therefore, it is crucial to analyze Tehran air-pollution data set during 2000-2009 for trend analysis. Materials and Methods: In this study, we collected the hourly data of Tehran air pollution during 2000-2009 recorded by monitoring station of Tehran Air P...

Journal: :International journal of occupational medicine and environmental health 2009
Mieczyslaw Szyszkowicz Brian H Rowe Ian Colman

OBJECTIVES To investigate the potential correlation between ambient air pollution exposure and emergency department (ED) visits for depression. MATERIALS AND METHODS A hierarchical clusters design was used to study 27 047 ED visits for depression in six cities in Canada. The data used in the analysis contain the dates of visits, daily numbers of diagnosed visits, and daily mean concentrations...

2015
Ta-Chen Su Juey-Jen Hwang Yu-Cheng Shen Chang-Chuan Chan

BACKGROUND Associations between long-term exposure to air pollution and carotid intima-media thickness (CIMT) have inconsistent findings. OBJECTIVES In this study we aimed to evaluate association between 1-year average exposure to traffic-related air pollution and CIMT in middle-aged adults in Asia. METHODS CIMT was measured in Taipei, Taiwan, between 2009 and 2011 in 689 volunteers 35-65 y...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده زبانهای خارجی 1391

as polysemy is encountered frequently in english as foreign language. fl learners’ ability to disambiguate polysemous verbs becomes critical to their comprehension in the target language. this thesis, accordingly, investigated how iranian efl learners achieved comprehension of english polysemous verbs by using three different types of cues: (1) elaborated context, (2) semantic frames, and (...

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