نتایج جستجو برای: high grade sodium bentonite

تعداد نتایج: 2321500  

A. Chakraborty, A. Shiva B, B. Goswami, P. Goswami, P. Kumari, P. Nagendran, S. Banerjee, S. Mitra, S. Mukherjee,

Background: Identify the optimal technique of radiotherapy for patients with high grade glioma. Our initial year of experience with RapidArc radiation therapy. Materials and Methods: Planning CT scans of 50 patients with grade IV glioma were reviewed and three plan sets by 3D Conformal Radiotherapy (3DCRT), Intensity Modulated Radiotherapy (IMRT) and Rapid Arc (RA) were generated and the plans ...

2012
Jyotsna Agarwal

The paper presents the investigations on absorbability of ferri/ferrous impurities found in commercial grade sodium sulphide. The later product is unsuitable for the manufacture of pharmaceutical grade chemicals and dyes chemicals.The author have carried out experiments on the use of precipated barium sulphate as an adsorbent in different propotions in the aqueous solution of commercial grade s...

Journal: :Annals of the rheumatic diseases 1959
G MORGAN

The exact nature of the "rheumatoid factor" is unknown, but it appears to be an antibody-like substance composed of a gamma globulin complex of high molecular weight. Two groups of tests have been used to detect it: the haemagglutination test and the latex-fixation or Bentonite flocculation test. In the first group the indicator consists of sheep red cells with rabbit anti-sheep haemolysin as t...

Journal: :Journal of environmental sciences 2012
Zhenhua Wu Lizhong Zhu

The optimal condition for a one-step process removing organic compounds from coking wastewater by simultaneously synthesized organobentonite as a pretreatment was investigated. Results showed that sorption of organic compounds by organobentonite was positively correlated to the cation surfactant exchange on the bentonite and the octanol-water partition coefficient (Kow) of the solutes. With 0.7...

Journal: :Journal of hazardous materials 2011
Jin Su Huai-Guo Huang Xiao-Ying Jin Xiao-Qiao Lu Zu-Liang Chen

In this study, organobentonites were prepared by modification of bentonite with various cationic surfactants, and were used to remove As(V) and As(III) from aqueous solution. The results showed that the adsorption capacities of bentonite modified with octadecyl benzyl dimethyl ammonium (SMB3) were 0.288 mg/g for As(V) and 0.102 mg/g for As(III), which were much higher compared to 0.043 and 0.03...

Journal: :International journal of occupational safety and ergonomics : JOSE 2012
Katarzyna Majchrzycka Beata Gutarowska Agnieszka Brochocka Bogumił Brycki

This study evaluated the bioactivity of polypropylene melt-blown filtering nonwovens used in respiratory protective devices (RPD) with a biocidal agent (alkylammonium microbiocides) on 2 mineral carriers. Two types of carriers were tested: a bentonite, with an aluminosilicate base, and a perlite, volcanic glass. High biostatic and biocidal effects of modified nonwovens with biocides were tested...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان 1390

یک سری پنج تایی لیگاند چهار دندانه سولفور دهنده: en-bis-dtcna = ethylenebisdithiocarbamate sodium salt pn-bis-dtcna = propylenebisdithiocarbamate sodium salt bu-bis-dtcna = butylenebisdithiocarbamate sodium salt he-bis-dtcna = hexylenebisdithiocarbamate sodium salt oc-bis-dtcna = octylenebisdithiocarbamate sodium salt تهیه شده است. این لیگاندها به روش های ir ,1h-nmr و تجزیه عنصری شن...

Journal: :Bulletin of environmental contamination and toxicology 2016
Alžbeta Hegedűsová Ondrej Hegedűs Tomáš Tóth Alena Vollmannová Alena Andrejiová Miroslav Šlosár Ivana Mezeyová Tímea Pernyeszi

The adsorption of contaminants plays an important role in the process of their elimination from a polluted environment. This work describes the issue of loading environment with lead Pb(II) and the resulting negative impact it has on plants and living organisms. It also focuses on bentonite as a natural adsorbent and on the adsorption process of Pb(II) ions on the mixture of bentonite and botto...

ژورنال: دانشور پزشکی 2015
رشیدی, داوود, رضوانی, محمدباقر, طباطبائی قمشه, سیده الهام, محمدی بصیر, مهشید, ملک حسینی, زهرا, ناصری, محسن,

Objective: The purpose of this study was a comparison between effectiveness of a new herbal bleaching material with combination of sodium perborate and distilled water. Materials and Methods: In this study, 27 permanent anterior teeth with intact crowns were selected and discolored intentionally by inserting them in whole blowhole centrifuged at 2500 rpm for 30 minutes three times a day for ...

2017
Iván Sánchez-Castro Mohammed Bakkali Mohamed L. Merroun

The Gram-negative bacterium Stenotrophomonas bentonitica BII-R7T was isolated from bentonite formations. Like other species within the genus Stenotrophomonas, strain BII-R7T possesses high tolerance to numerous heavy metals, suggesting potential for bioremediation purposes. The draft genome sequence reported here comprises 4.37 Mb with a G+C content of 66.5% and 3,796 predicted protein-coding s...

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