نتایج جستجو برای: modelling and air pollution

تعداد نتایج: 16910488  

Journal: :international journal of environmental research 2012
e.m.m. zahran

the aim of this research paper is the introduction of a novel mathematical approach to improvethe accuracy of the results of air pollution dispersion models based on the calibration of input backgroundconcentrations. using the dunkirk area of the city of nottingham in the uk as a case study, an air pollutionmodel in adms-roads was created for developing the mathematical approach. the iterative ...

Journal: :international journal of environmental research 0
e.m.m. zahran department of public works, faculty of engineering, ain shams university, cairo, egypt

the aim of this research paper is the introduction of a novel mathematical approach to improvethe accuracy of the results of air pollution dispersion models based on the calibration of input backgroundconcentrations. using the dunkirk area of the city of nottingham in the uk as a case study, an air pollutionmodel in adms-roads was created for developing the mathematical approach. the iterative ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده منابع طبیعی 1392

nowadays, air pollution is a global problem that has had significant growth by technology development, population growth andindustrial development. industrial development brought natural resources deterioration, more manufacturing products, and more environmental pollutants. if pollutant won’t be controlled, human-being and wildlife will face the critical risks. significant release and critical...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه - دانشکده کشاورزی 1393

چکیده کنه تارتن دو لکه ای tetranychus urticae koch یکی از چندخوارترین آفات شناخته شده محصولات کشاورزی دنیا به حساب می آید. در این بررسی جمعیت تخم و مراحل فعال این کنه در شرایط آلودگی طبیعی و مصنوعی در برگ های 8 رقم لوبیا در سال 1392 در گلخانه و مزرعه تحقیقاتی دانشکده کشاورزی دانشگاه ارومیه موردمطالعه قرار گرفت. آزمایش به صورت طرح کاملاً تصادفی برای شرایط مزرعه در10 تکرار و برای شرایط گلخانه ای...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده فنی 1391

the study of air infiltration into the buildings is important from several perspectives that may be noted to energy and design of hvac systems, indoor air quality and thermal comfort and design of smoke control systems. given the importance of this issue, an experimental and numerical study of air infiltration through conventional doors and windows has been explored in iran. to this end, at fir...

Journal: :محیط شناسی 0
مجید شفیع پور مطلق استادیار دانشکدة محیط زیست، دانشگاه تهران خسرو اشرفی استادیار دانشکدة محیط زیست، دانشگاه تهران آزاده توکلی دانشجوی دکتری، دانشکدة محیط زیست، دانشگاه تهران

in many peoples’ minds, air pollution is associated with the contamination of urban air from automobile exhausts and industrial emissions. growing number of scientific evidence has indicated that in industrialized societies, air within buildings can be more seriously polluted than the outdoor air. in the last couple of decades, with the widespread availability of personal computers, mathematica...

Journal: :محیط زیست طبیعی 0
زهرا خبری دانشگاه یزد/کارشناس ارشد محیط زیست فرهاد نژادکورکی دانشگاه یزد، دانشکده منابع طبیعی و کویرشناسی، هیئت علمی شهرام طالبی دانشگاه یزد دانشکده مکانیک هیئت علمی

nowadays, air pollution is one of the main challenges worldwide. there have been significant improvements in air quality dispersion modelling. aermod is one of these models which is based upon the gaussian model. however, aermod has some limitations in terms of data input and output. therefore improving this model as well as developing new models adopted to our country is required to be address...

2011
K. W. Chau S. K. Wong

Contents 1. Introduction 2. Air pollution and property values 3. Noise and property values 4. View and property values 5. Neighbourhood facilities and property values 6. Zoning regulation and property values 7. Hedonic price modelling of environmental attributes on urban values in Hong Kong 7.1. Air pollution control mechanism in Hong Kong 7.2. Noise pollution control mechanism in Hong Kong 7.3...

2004
R. San José J. L. Pérez R. M. González

The advances in air quality modelling have been substantial in the last decade. Nowadays, air quality modelling systems are capable to provide accurate information on the impact of different sources in relation to the total air pollution concentrations in real-time and in forecasting modes. In this contribution we show the results of the impact of five different industrial plants on a mesoscale...

2003

ICP on assessment and monitoring of acidification of rivers and lakes (ICP Waters) ICP on effects of air pollution on materials, including historic and cultural monuments (ICP Materials) ICP on effects of air pollution on natural vegetation and crops (ICP Vegetation) ICP on integrated monitoring of air pollution effects on ecosystems (ICP IM) ICP on modelling and mapping of critical levels and ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید