Mehdi Esmaili - Academia.edu (original) (raw)
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Papers by Mehdi Esmaili
Health Scope, 2016
Background: Air emission modeling is used to study how pollutants are spread in the environment a... more Background: Air emission modeling is used to study how pollutants are spread in the environment and to forecast their emissions rate in different climatic conditions in the study area. Today, air pollution threatens human public health and the environment, and Ahvaz is considered one of the main centers of air pollution in Iran. Objectives: This aim of this study was to evaluate the nitrogen dioxide distribution in Ahvaz by using the software program Screen 3. Materials and Methods: This analytical study was conducted in 2013 in Ahvaz. Data collections were performed by the Ahvaz Department of Environment. After processing the data received (averaging instruction set, coding), the file was converted to an input file for the software program Screen 3. In the next phase, study of the distribution and release of nitrogen dioxide during the year 2013 was modeled using the Screen 3 software. Results: Based on the results of this study, the highest and the lowest nitrogen dioxide concentration were in the Bureau of Meteorology and Head office of ADoE stations, respectively. The maximum concentration of NO 2 , at a height of 45 m, was 20 μg/m 3 .According to the findings of the modeling, examination of the combustion process was observed, and this was caused by the amount of nitrogen dioxide emitted by flue outlets, which was affected by temperature and pressure, fuel flow rates and inlet air temperature. Also, results showed that in most cases emission of air pollutants was towards the southwest. Conclusions: Results of this study showed that the Screen3 software is one of the popular models for estimating the distribution of air pollutants. Nitrogen dioxide emissions are highly regulated in most industrialized regions. Decreased emissions from fuel combustion, the use of scrubbers and filters that absorb pollution can be very useful for reduction and control of nitrogen dioxide emissions.
European Online Journal of Natural and Social Sciences, May 23, 2014
Starting point of obtaining skills in time management is individually different. Most people thin... more Starting point of obtaining skills in time management is individually different. Most people think they can get better than what they are with the help of time management. The best opportunities or the worst ones usually occur at unexpected time which we might not be ready for. Here, the question is "what is time management ?". It can be said it is the best use of seconds and opportunities one faces. Therefore, in this paper, efforts has been done to provide practical ways so as to use the time in an optimum way. By definition, time management is determining main purposes as a first step and writing them down on a paper followed by next and main step: regular planning as well as hard efforts which finally lead to aims access. However ,in the case of absence of one of the mentioned factors ,it would be either impossible to realizing aims or you may be exercised lots of expenses leading to no qualitative results.
Health Scope, 2016
Background: Air emission modeling is used to study how pollutants are spread in the environment a... more Background: Air emission modeling is used to study how pollutants are spread in the environment and to forecast their emissions rate in different climatic conditions in the study area. Today, air pollution threatens human public health and the environment, and Ahvaz is considered one of the main centers of air pollution in Iran. Objectives: This aim of this study was to evaluate the nitrogen dioxide distribution in Ahvaz by using the software program Screen 3. Materials and Methods: This analytical study was conducted in 2013 in Ahvaz. Data collections were performed by the Ahvaz Department of Environment. After processing the data received (averaging instruction set, coding), the file was converted to an input file for the software program Screen 3. In the next phase, study of the distribution and release of nitrogen dioxide during the year 2013 was modeled using the Screen 3 software. Results: Based on the results of this study, the highest and the lowest nitrogen dioxide concentration were in the Bureau of Meteorology and Head office of ADoE stations, respectively. The maximum concentration of NO 2 , at a height of 45 m, was 20 μg/m 3 .According to the findings of the modeling, examination of the combustion process was observed, and this was caused by the amount of nitrogen dioxide emitted by flue outlets, which was affected by temperature and pressure, fuel flow rates and inlet air temperature. Also, results showed that in most cases emission of air pollutants was towards the southwest. Conclusions: Results of this study showed that the Screen3 software is one of the popular models for estimating the distribution of air pollutants. Nitrogen dioxide emissions are highly regulated in most industrialized regions. Decreased emissions from fuel combustion, the use of scrubbers and filters that absorb pollution can be very useful for reduction and control of nitrogen dioxide emissions.
European Online Journal of Natural and Social Sciences, May 23, 2014
Starting point of obtaining skills in time management is individually different. Most people thin... more Starting point of obtaining skills in time management is individually different. Most people think they can get better than what they are with the help of time management. The best opportunities or the worst ones usually occur at unexpected time which we might not be ready for. Here, the question is "what is time management ?". It can be said it is the best use of seconds and opportunities one faces. Therefore, in this paper, efforts has been done to provide practical ways so as to use the time in an optimum way. By definition, time management is determining main purposes as a first step and writing them down on a paper followed by next and main step: regular planning as well as hard efforts which finally lead to aims access. However ,in the case of absence of one of the mentioned factors ,it would be either impossible to realizing aims or you may be exercised lots of expenses leading to no qualitative results.