نتایج جستجو برای: borate

تعداد نتایج: 3395  

ژورنال: مواد پرانرژی 2017

Bonding agents are one of the most important components of solid propellants that enhance the interaction between solid particles and binders. Many bonding agents have been reported so far and sufficient laboratory studies have been carried out on their mechanism of action, including, hydantoin, isocyanorathe, vinyl ether, base-shif, etc. Borate esters are other group of bonding agents that mos...

Amin Bigham Sadegh, Jahangir Kabotari-Kataj Mahmoud Mohseni Rahmatollah Fattahian-Dehkordi

Objective: Evaluation of onset and duration of peripheral nerve blockage with alkalinized lidocaine by borate buffer instead of sodium bicarbonate. Study design: Experimental randomized cross-over study. Animals: Forty male Sprague-Dawley rats (body weight 200–300 g) were used in this study. Methods: Four 1.0% lidocaine solutions were prepared from commercially available solutions. The treat...

2015
Hiroya Funakawa Kyoko Miwa

In the present review, we describe current knowledge about synthesis of borate crosslinked rhamnogalacturonan II (RG-II) and it physiological roles. RG-II is a portion of pectic polysaccharide with high complexity, present in primary cell wall. It is composed of homogalacturonan backbone and four distinct side chains (A-D). Borate forms ester bonds with the apiosyl residues of side chain A of t...

2002
Ulrich Weser Yoka Kaup

Mummification salts and mummified bones were assayed for borate. In two samples of mummification salt one from Deir el-Bahari (26th Dynasty, 700Ð600 BC) and salt from the embalming material of Tutankhamen (18th Dynasty, 1370Ð1335 BC) 3.9 and 2.1 μMol borate/ gram were found, respectively. Six mummified bone fragments from the Old Kingdom contained up to 1.2 μMol/gram. It is suggested that borat...

بمانی, مهدی , مجتهدزاده, سیدحسین , کوهساری, امیرحسین ,

Mohammadabad-Oryan index is the only borate index in the north-east of Iran that is embedded in the formationscontainingtuff marl, tuffaceous marl, volcanic breccia and tuff brecciawhichbelongs to cretaceous. This index is located about 50 km south of Sabzevar. Two NE-SW trending thrust and reverse faults have occurred in the area. These faults were pathways for ore forming solutions and create...

Journal: :Bioscience, biotechnology, and biochemistry 1992
H Nomoto K Yasukawa Y Inoue

A procedure for obtaining pure glycoasparagine specimens was developed. This method constitutes ion-exchange chromatography in a DEAE-Sephadex A-25 (borate form) column, using a linear gradient of borate buffer as the eluent. With no conversion, almost all the individual glycoasparagines, including some new ones, derived from ovalbumin could be isolated in pure form. By the borate-ion exchange ...

2015
D. S. Vardar A. S. Kipcak F. T. Senberber E. M. Derun N. Tugrul S. Piskin

Zinc borate is an important inorganic hydrate borate material, which can be used as a flame retardant agent and corrosion resistance material. This compound can loss its structural water content at higher than 290°C. Due to thermal stability; Zinc Borate can be used as flame retardant at high temperature process of plastic and gum. In this study, the ultrasonic reaction of zinc borates were stu...

2016
Tomomichi Fujita Liwen Jiang Noboru Yamauchi Tadashi Gosho Kiminori Toyooka Ken Matsuoka

In the borate transporter BOR1, which is located in the plasma Arabidopsis membrane, is degraded in the presence of excess boron by an endocytosis-mediated mechanism. A similar mechanism was suggested in rice as excess boron decreased rice borate transporter levels, although in this case whether the decrease was dependent on an increase in degradation or a decrease in protein synthesis was not ...

2013
Noboru Yamauchi Tadashi Gosho Satoru Asatuma Kiminori Toyooka Toru Fujiwara Ken Matsuoka Agustín González-Fontes Liwen Jiang Tomomichi Fujita

In Arabidopsis the borate transporter BOR1, which is located in the plasma membrane, is degraded in the presence of excess boron by an endocytosis-mediated mechanism. A similar mechanism was suggested in rice as excess boron decreased rice borate transporter levels, although in this case whether the decrease was dependent on an increase in degradation or a decrease in protein synthesis was not ...

Journal: :Chemical communications 2015
Xiaoyan Sun Yuxiao Ding Bingsen Zhang Rui Huang Dang Sheng Su

For the first time, we give a fundamental understanding of the effect of borate-modified nanodiamond on propane oxidative dehydrogenation reaction. Upon increasing the loading amount of borate on the carbon surface, the propene selectivity shows a volcanic curve. The adsorption sites of borate at different loading amounts are thoroughly considered.

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