نتایج جستجو برای: 1 calcium chloride ethylene production of delbarestival 1836
تعداد نتایج: 21555424 فیلتر نتایج به سال:
Novel eutectic mixtures have been produced using calcium chloride hexahydrate as the hydrogen bond acceptor, together with ethylene glycol donor. The liquids are found to increased conductivity, decreased viscosity and a lower glass transition temperature compared most deep solvents quaternary ammonium salts. Additionally, metal speciation was be almost same in commonly-used choline chloride: D...
the purpose of the present study was to investigate the effect of task-based instruction of vocabulary on the receptive and oral productive acquisition of english vocabulary and compare the results with those obtained from the traditional method. the method and procedure applied in this study was as follows: after the implementation of opt, a group of sixty female students were chosen. the stu...
BACKGROUND: Some herbal plants can prevent kidney stones formation in a dose dependent manner. In present study, we aimed to investigate the protective role of Cannabis sativa aqueous extraction on calcium oxalate formation in ethylene glycol-induced rats. MATERIALS AND METHODS: To evaluate anti-urolithiasis, variations of the main risk factors (citrate, phosphorous, calcium and PH) have been ...
abstract: mineral scaling in oil and gas production equipment is one of the most important problem that occurs while water injection and it has been recognized to be a major operational problem. the incompatibility between injected and formation waters may result in inorganic scale precipitation in the equipment and reservoir and then reduction of oil production rate and water injection rate. ...
The role of calcium in the growth, fruiting and preservation of the quality of strawberries, has been well known. In this research, effect of calcium chloride along with naphthalene acetic acid (NAA) under shade conditions on growth, yield and quality of Paros strawberry was investigated. The experiment was a factorial with two factors of light intensity (normal light and shade condition) and c...
چکیده : نظریه ی شیوه ی تولید آسیایی ، اولین بار توسط مارکس و سپس در تأیید نظریات او ، در آثار انگلس مطرح شد . این نظریه علاوه بر شیوه تولید ، به بحث درباره ی ماهیت دولت در جوامع آسیایی می پردازد . در این پژوهش ، وجه تولید آسیایی و نظریات پیرامون آن در توسعه نیافتگی ایران ، مورد بحث و بررسی قرار می گیرند . مهمترین نظ the asian production theory was first introduced by marx and then was suppo...
Graft copolymer networks of poly(methacrylic acid-g-ethylene glycol) were prepared by free radical solution UV-polymerization of methacrylic acid (MAA) and poly(ethylene glycol) monomethacrylate. Dynamic swelling studies indicated that complexation/decomplexation processes occurred due to hydrogen bonding between the carboxylic groups of the poly(methacrylic acid) (PMAA) and the ether groups of...
Objective: Urolithiasis remains a global problem. Despite the availability of numerous methods, no definite therapeutic agent has been yet introduced for the prevention or treatment of kidney stones. In this study, we evaluated the possible preventive effects of aqueous extract of Cichorium intybus L. (chicory) flowers on ethylene glycol-induced renal calculi in rats. Materials and Methods: A t...
among the most important mineral nutrients calcium is involved in determining fruit quality. there is one approad to increase fruit firmness, how to harvest, transport and storage of kiwifruit in iran is not appropriate and resulting damages caused by careless use of traditional methods in the field to offer to the consumer is very high. how harvest, transport and storage of kiwifruit, in iran,...
Pear trees (Pyrus communis L.), cv. d’Anjou, received foliar applications of X-77 surfactant and 32.3 mM CaCl2 at 55, 85, 125, and 137 days after full bloom (DAFB) and fruit were harvested at 147 DAFB. Samples of fruit were stored in air either at 20 °C continuously or at 5 or 10 °C for several periods, then transferred to 20 °C, to determine the effects of storage temperature and CaCl2 treatme...
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