نتایج جستجو برای: kaolin so3h
تعداد نتایج: 2617 فیلتر نتایج به سال:
The goal of this project was to isolate representative Fe(III)-reducing bacteria from kaolin clays that may influence iron mineralogy in kaolin. Two novel dissimilatory Fe(III)-reducing bacteria, strains G12(T) and G13(T), were isolated from sedimentary kaolin strata in Georgia (USA). Cells of strains G12(T) and G13(T) were motile, non-spore-forming regular rods, 1-2 mum long and 0.6 mum in dia...
Sulfonic acid functionalized nanoporous silica (SBA-Pr-SO3H) with a pore size of 6 nm catalyzed three component coupling of aromatic aldehydes, urea and ethyl acetoacetate to afford the corresponding dihydropyrimidinones under solvent free condition. This new protocol for Biginelli reaction has important advantages such as green synthesis, short reaction time, easy isolation and high yields of ...
beta-2 adrenoceptors in blood vessels are one of the active factors that play a role in regulation of tissue blood flow. in diabetic angiopathy, responsiveness of these receptors is decreased, while that is increased in inflammation. according to these opposite effects, the aim of this study was to investigate the vasodilatory response of knee joint blood vessels to salbutamol (beta-2 adrenocep...
Background and purpose: Textile industries produce huge amounts of colored wastewater. Synthetic dyes cause serious problems to human health and aquatic organisms due to their toxic and carcinogenic properties. In this study, Acid Blue 113 (AB113), which is stable and persistent against conventional treatment methods was selected as the target contaminant. Materials and methods: The synthesis ...
The extensive use of zeolites as catalysts and catalyst suppo rts in heteregenous cll t:tly~i ... in the che mical and petrochemical industries is well established. Kaolin is a suitable aluminosilicate mineral which in appropriate conditions can be transformed to a three dimensional zeolite structure with a high surface area. A vast and dispersed kaolin deposites in the country are high p...
Bemisia tabaci is one of the most important pests of tomato greenhouses in Jiroft and chemical control is the only way to control this pest. To reduce the use of chemical pesticides and produce healthy crops, studying safer control methods such as application of kaolin powder is very important. In this study, the effect of kaolin clay, made in Iran (Sepidan(R)), on the control of Bemisia tabaci...
Water-repellent soils have a potential as alternative construction materials that will improve conventional geotechnical structures. In this study, the potential of chemically treated water-repellent kaolin clay as a landfill cover material is explored by examining its characteristics including hydraulic and mechanical properties. In order to provide water repellency to the kaolin clay, the sur...
Evaluation of the efficacy clay particles as a coating agent cacao pods and carrier entomopathogen, Metarhizium anisopliae Sorokin, was conducted for control mirid bug (CMB), Helopeltis bakeri Poppius. Choice no-choice tests were performed to evaluate Philippine-sourced deter CMB feeding, in comparison with commercially available particle film (US kaolin Surround ® ). To determine most efficien...
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