نتایج جستجو برای: pollution elimination

تعداد نتایج: 125623  

Journal: :Environmental technology 2009
Takeyuki Sakuma Toshihiro Hattori Marc A Deshusses

Moisture control is one the most important parameters in biofilters for air pollution control. Biofilters tend to experience drying at the air inlet port, which causes decreased pollutant removal over time. In this study, the installation of an irrigation system within the lower part of the biofilter bed was proposed, and its effect was quantified in a laboratory scale biofilter operated side b...

Journal: :iranian journal of public health 0
h. a. rafatjah

environmental management for malaria control is defined as any planned physical activities that through transformation of land, water and vegetation will result in the prevention, reduction or elimination of malaria. in planning and implementing these activities, full consideration must be given to their long-term effects and benefits and to the preservation of the quality of environment and th...

Journal: :archives of clinical infectious diseases 0
masoud mardani infectious diseases and tropical medicine research center, shahid beheshti university of medical sciences, tehran, iran; infectious diseases and tropical medicine research center, shahid beheshti university of medical sciences, tehran, iran

Journal: :Water 2022

Perfluorinated compounds (PFCs) are recognized as a new type of refractory organic pollutants. Due to the persistent environmental pollution, bioaccumulation, and biotoxicity PFCs, they have received extensive attention in recent years. To deal with risks caused by pollution distribution PFCs aquatic environment discussed detail, mainly for most widely used PFCs—perfluorooctanoate (PFOA) perflu...

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...

Journal: :IOP conference series 2023

Abstract The accidents at nuclear power plants pose a particular threat to the population and environment. Accidental emissions can cause long-term radioactive pollution of environment, elimination such take years. For practice, it is very important predict intensity size contamination zones for various scenarios extreme situations plants. Such forecast will identify most vulnerable areas devel...

Journal: :Theoretical Computer Science 2008

Journal: :Advanced composites and hybrid materials 2023

Multilayer radar absorbing materials with light weight, strong absorption, and wide absorption bandwidth are urgently demanded the increase of electromagnetic pollution. However, current design methods only simulation operation or optimization strategy not comprehensive. Here, a simulation-optimization approach including numerical calculation is proposed based on interaction between different s...

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