ارزیابی عملکرد پوشش های پلیمری برای مقره های الکتریکی در محیط های با هوای بسیار آلوده [PDF]
مقرههای الکتریکی بهعنوان یکی از انواع عایق های الکتریکی، وظیفة نگهداری کابل های انتقال جریان و عایقبندی رساناها را دارند. اقتصادیترین نوع، مقرههای سرامیکی و شیشهای هستند که بهدلیل تخلیة الکتریکی در مناطق مرطوب و آلوده کارایی کمی دارند.
سحر عبدالهی باغبان
doaj +1 more source
Qualitative and quantitative evaluation of surface water using statistical analysis in Azna River, Lorestan [PDF]
Water pollution in recent decades is as serious threat to the human and natural ecosystem so that assessing changes water quality are one of the most important topics for desirable use .
Artimes Ghassemi Dehnavi +4 more
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Geochemical and environmental monitoring of the major and minor elements in coastal sediments of Hormoz Island coasts and drawing its distribution maps [PDF]
Assessing pollution of coastal sediments is environmentally and ecologically important. Therefore, the aim of this study was to determine environmental pollution and to prepare the geochemical distribution map of elements in the coastal sediments of ...
Mahdi Gholamdokht Bandari +3 more
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Geological, alteration, mineralogy and geochemical studies of the Copper deposit in the Kalatehno prospect area, northwest of Gonabad (Khorasan Razavi province) [PDF]
The Kalatehno prospecting area is located at 23 Km northwest of Gonabad, Khorasan Razavi province, and north of the Lut Block. The geology of the area includes subvolcanic units with monzonite, monzodiorite and diorite porphyry, volcanic units ...
Roohollah Miri Bydokhti +1 more
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تشکیل و تحول خاکهای متشکله بر روی رسوبات کواترنر در بخشی از دشت ارومیه [PDF]
رسوبات کواترنر بخش عمده عرصههای کشاورزی و منابع طبیعی منطقه ارومیه را به خود اختصاص دادهاند. به منظور بهرهبرداری بهینه و پایدار از این اراضی، چگونگی تشکیل، شناخت خصوصیات فیزیکوشیمیایی و کانیشناسی این خاکها ضروری است.
پریسا فرزام نیا +2 more
doaj
روش های پژوهش در ژئومورفولوژی [PDF]
با توسعه دانش جدید، دو روش بسیار متفاوت جهت نیل به تبیین علمی دنبال شده است. تمایز روشنی بین این دو روش (استقراء و قیاس) وجود دارد. در روش استقرایی، تعمیم از طریق تجربه و مشاهده به دست میآید.
رضا منصوری +1 more
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Direklo-Mehdikhan Alkaline Basalt District, an Indication of a Quaternary Continental Within Plate Extensional Mechanism [PDF]
IntroductionThe Direklo-Mehdikhan volcanic district is the largest volcanic region within the Qorveh-Bijar Quaternary volcanic belt, located near Qorveh in Kurdistan province, Iran.
Fatemeh Narimani +2 more
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Petrogenetic evidences in geodynamics and placement of Nordoz intrusive masses in Alborz-Azerbaijan structural zone [PDF]
The Oligocene Nordoz intrusive complex is located in the eastern region of Siehroud, within the East Azerbaijan province, and within the Alborz-Azerbaijan structural zone.
Amir Ali Tabakh Shabani +4 more
core +1 more source
Evaluation of the effect of rainbow trout (Oncorhynchus mykiss) fish farms on the water quality of Zarin Gol river using a physicochemical index (WQI) [PDF]
The excessive growth of the aquaculture industry, in addition to using more natural resources, causes a disturbance to the biological and non-biological balance through effluent releases, and water quality indicators provide the possibility of better ...
Naddafi, Rahmat
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Ecological risk assessment of pollution in sediment on benthic fauna in coast of Bandar Abbas [PDF]
Ecological risk assessment is determination of the probability of an adverse effect occurring to an ecological system. This investigation was carried out to assess the ecological risk of sediment in coast of Bandar Abbass in 9 stations including Shilat ...
Ejlali, Keyvan
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