نتایج جستجو برای: th and u

تعداد نتایج: 16863500  

Mitra Noori Reza Pourimani Rouhollah Gheisari, Sana Rahimi

In this study, natural and artificial radioactivity concentration in Agaricus bispora (nourished mushroom) and their composts, Cantharellus cibarius and Coprinus micaceuc (wild species) were determined. Samples were collected from Sahne and two kinds of wild mushroom species from Songhor Koliai township gardens all located in Kermanshah Province were collecte...

Journal: :Geochimica et Cosmochimica Acta 2020

The sorption of thorium and uranium ions by functionalized SBA–15 mesoporous silica materials with Schiff base ligating groups N–propylsalicylaldimine (SBA/SA) and ethylenediaminepropylesalicylaldimine (SBA/EnSA) from aqueous solution was investigated in fixed-bed column method. The TEMPeffect of pH, sample solution volume, and the column design parameters such as sample and eluent flow rat...

Journal: :زمین شناسی اقتصادی 0
علیرضا زراسوندی محسن رضایی هوشنگ پورکاسب عادل ساکی

the nasirabad manganese deposit is located 5 km south of nasirabad, 8 km sw of neyriz in the fars province. structurally, the area is placed in the southeastern part of zagros thrust belt. in this area, the manganese mineralization occurred as ore layers and nodules, interlayered with pichakun radiolarite chert deposits. in this study, mineralogy and geochemistry of uranium, thorium and lead is...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید مدنی آذربایجان - دانشکده علوم پایه 1392

let g=(v,e) be a graph with vertex set v and edge set e.for two vertices u,v of g ,the closed interval i[u,v] ,consists of u,v and all vertices lying in some u-v geodesic in g.if s is a set of vertices of g then i[s]is the union of all sets i[u,v]for u,v ? s. if i[s]=v(g) , then s is a geodetic set for g.the geodetic number g(g) is the minimum cardinality of geodetic set.the maximum cardinalit...

2012
SUJIN JEBA

Bacillus Sp. was isolated near the mining area and was studied for biosorption U and Th. This study presents uptake of uranium (U) and thorium (Th) by live and dead cells of Bacillus Sp. Increasing concentration of U and Th showed decrease in absorption by Bacillus Sp. Dead cells of Bacillus Sp. exhibited same or more uptake of U and Th than living cells. Increasing temperature promotes uptake ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده کشاورزی 1389

چکیده توان بالقوه تجاری سلولازها و کاربردهای گوناگون آن ها در بسیاری از صنایع انگیزه ای قوی برای تحقیق در این زمینه طی چند دهه گذشته بوده است. با توجه به کاربردهای فراوان این آنزیم در صنایع غذایی? در این پژوهش تصمیم به جداسازی ریزسازواره های تولید کننده سلولاز از خاک درختان انار، انگور، خرمالو و گردو حیاط دانشکده کشاورزی تربیت مدرس، گرفته شد. در این بین خاک درخت خرمالو به دلیل دارا بودن تعداد ...

2014
Ulrich Kamp

GPHY 421 Sustainable Cities Prof. Ulrich Kamp 1. You will ta k e each exam a s sch e d u le d . M ake-up ex am s a re n o t allow ed—ex cep t a s lis ted in th e M ake-up exam policy below. 2. M ateria l for th e exam will be from th e req u ired tex tb o o k a n d o th e r re a d in g s a n d all o th e r d is tr ib u te d m a te r ia l. A tten d an ce for each le c tu re is re co m m en d ed ...

2006
Takehiko Tsuruta

The removal of radionuclides, such as uranium (U) and thorium (Th) from aqueous solutions, especially from contaminated sources, seems to be a significantly useful subject for exploiting unused or abandoned energy resources. In this regard, efforts have been especially concentrated on studying the accumulation of U using microorganisms, such as the actinomycetes, bacteria, fungi, and yeasts. 14...

2007
Alessandra Sarti

Let G ⊂ S O (4 ) d e n o te a fi n ite su b g ro u p c o n ta in in g th e H e ise n b e rg g ro u p . In th e se n o te s w e c la ssify a ll th e se g ro u p s, w e fi n d th e d im e n sio n o f th e sp a c e s o f Gin v a ria n t p o ly n o m ia ls a n d w e g iv e e q u a tio n s fo r th e g e n e ra to rs w h e n e v e r th e sp a c e h a s d im e n sio n tw o . Th e n w e c o m p le te t...

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