نتایج جستجو برای: parvadeh iv tabas
تعداد نتایج: 179358 فیلتر نتایج به سال:
The present work describes the studies on the coordination behaviour of 4[N-(benzalidene) amino]antipyrine semicarbazone (BAAPS) (I), 4[N-(furfural)amino]antipyrine semicarbazone (FFAAPS) (II) and 4[N-(cinnamalidene)amino]antipyrine semicarbazone (CAAPS) (III) in presence of dimethyl sulfoxide (DMSO) or diphenyl sulfoxide (DPSO) towards Th4+ and UO22+ salts. All the complexes were isolate...
Abstract Background and objective: Bioindicators of drinking water are always influenced by physical and chemical factors such as turbidity and chlorine. Considering the assessment of drinking water quality is based on residual chlorine, E.coli, heterotrophic bacteria and turbidity. We aimed to evaluate the effect of pH, chlorine residual and turbidity on the microbial ...
The Ab-Bid deposit, located in the Tabas-Posht e Badam metallogenic belt (TPMB) Central Iran, is largest Pb-Zn (±Cu) deposit Behadad-Kuhbanan mining district. Sulfide mineralization formed Middle Triassic carbonate rocks and contains galena sphalerite with minor pyrite, chalcopyrite, chalcocite, barite. Silicification dolomitization are main wall-rock alteration styles. Structural textural obse...
Abstract The Garedu Red Bed Formation (GRBF) of the northern Tabas Block (Central-East Iranian Microcontinent, CEIM) is a lithologically variable, up to 500-m-thick, predominantly continental unit. It rests gradually or unconformably on marine limestones Esfandiar Subgroup (Callovian–Oxfordian) and assigned Kimmeridgian–Tithonian. In lower part, it consists pebble- boulder-sized conglomerates/b...
سلنیوم به عنوان یک عنصر ضروری، نقش ویژه ای در رژیم غذایی انسان دارد. مقدار مورد نیاز یا سمیت سلنیوم به غلظت و فرم شیمیایی این عنصر بستگی دارد. بنابراین گونه شناسی و اندازه گیری مقادیر بسیار جزئی سلنیوم در ماتریس های مختلف امر مهمی می باشد. در این مطالعه سه روش مختلف برای اندازه گیری سلنیوم(iv) پیشنهاد شده است.در روش اول الکترود لایه نشانی شده با فیلم بیسموت/جیوه، تحت شرایط مدار باز و تکنیک ولتا...
Sulfur emission from coal combustion presents many environmental problems. The techniques used to reduce the amount of sulfur in coal before combustion, include physical, chemical and biological processes.Biological processes based on degradation of sulfur compounds by microorganisms offer many advantages over the conventional physical and chemical processes. The processes are performed und...
qoheston is a region in the southeastern khorasan which includes kashmar, tabas, ferdos, birjand, qaen, torbate haidarie, khaf and taibad cities. this region is surrounded by sabzevar and nishaboor from north, central desert from west, sistan and kerman from south and naomid plains from east. in addition to the geographical and climatic characteristics of the region the abundance of historical ...
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