نتایج جستجو برای: wax appearance temperature
تعداد نتایج: 541648 فیلتر نتایج به سال:
Plants are subject to a wide range of abiotic stresses, and their cuticular wax layer provides a protective barrier, which consists predominantly of long-chain hydrocarbon compounds, including alkanes, primary alcohols, aldehydes, secondary alcohols, ketones, esters and other derived compounds. This article discusses current knowledge relating to the effects of stress on cuticular waxes and the...
the oil content of the wax produced in a dewaxing process is the key economic parameter thatshould be reduced as much as possible. some factors such as the type of solvents, cooling rate,temperature, and solvent to oil ratio influence the dewaxing process. due to the fact that crude oildiffers from place to place and since the operational conditions for wax extraction vary for differenttypes of...
The study investigates the effect of temperature on the infectivity of two entomopathogenic nematodes, viz. Steinernema sp. and Heterorhabditis indica, locally isolated from Mizoram, northeastern India, using last instar larvae of greater wax moth, Galleria mellonella, as an insect host. Two hundred infective juveniles/larva of wax moth were exposed to different temperatures, viz. 10, 15, 20, 2...
Melorheostosis is a rare sclerosing hyperostosis that affects the appendicular skeleton more than the axial skeleton. This disorder also affects the cutaneous and soft tissues and leads to the formation of fibrosis and contracture. Due to the unique features of melorheostosis (dripping candle wax appearance), plain radiographs are often sufficient for diagnosis. Herein we report a case of melor...
The activity of a wax ester hydrolase in the cotyledons of jojoba (Simmondsia chinensis) seedlings increased drastically during germination, parallel to the development of the gluconeogenic process. The enzyme at its peak of development was obtained in association with the wax body membrane, and its properties were studied. It had an optimal activity at alkaline pH (8.5-9). The apparent K(m) va...
An improved process for slip casting ceramic articles that does not employ parting agents and affords the casting of complete, detailed, precision articles that do not possess parting lines. A wax pattern for a shell mold is provided, and an aqueous mixture of a calcium sulfate-bonded investment material is applied as a coating to the wax pattern. The coated wax pattern is then dried, followed ...
most of the citrus fruits, especially in north of iran are stored in common storages. this experimen in oder to persevere appearance and internal fruit quality were conducted in the citrus research station at 1392, britex-ti wax, storage wax, polyethlene bag (individual fruit), polyethlene bag (pair fruits) were used alone and with combination with methyl salicylate (mesa) vs. control (without ...
introduction: raisin is a principal traditional export product of iran and has a special position in the foreign trade of the country.during storage, the product turns sticky and hard due to exudates syrup and moisture loss. to solve this problem, the application of edible coating would be an appropriatesolution. edible coating may enhance the boundary layer resistance resulting to the enhanced...
Deepwater operations in subsea production systems can be critically affected during transient events, such as shutdown periods, because of the formation of hydrates and/or wax deposits (see figure 1). Such formations/deposits can completely block production pipelines, thus requiring different technological solutions to restart production [1, 2]. In fact, during shutdown periods the fluid looses...
ers of <20 μL often leak while 30 μL of wax results in approximately a 2 mm space between the upper and lower aqueous reagents. Second, the temperature at which mixing occurs depends on both the melting point of the wax and the amount of wax present. We have found that the upper aqueous layer does not enter the bottom layer until the tube has reached >80°C. We determined when the upper aqueous ...
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