منابع مشابه
Simulations of Vapor/Ice Dynamics in a Freeze-Dryer Condenser
Freeze-drying is a low-pressure, low-temperature condensation pumping process widely used in the manufacture of pharmaceuticals for removal of solvents by sublimation. Key performance characteristics of a freezedryer condenser are largely dependent on the vapor and ice dynamics in the low-pressure environment. The main objective of this work is to develop a modeling and computational framework ...
متن کاملAlternative Animal Feed Additive Obtain with Different Drying Methods from Carrot Unsuitable for Human Consumption
This study was conducted to determine that carrot powder obtain by different drying methods (oven and vacuum-freeze dryer) of carrot unfit for human consumption that whether feed additives in animal nutrition or not. Carrots randomly divided 2 groups. First group was dried by using oven, second group was by using vacuum freeze dryer methods. Dried carrot prepared from fresh carrot was analysed ...
متن کاملA novel method of cinnamon oil nanocapsulation in core-shell chitosan-alginate by freeze dryer
The objective of this work was to characterize the cinnamon oil nanocapsule that contained alginate-chitosan as coating agents. In this work, cinamonn oil loaded chitosan nanoparticles (CS-alginate NP-cinamonn) are prepared by a two-step process including oil/water emulsion and ionic gelation. In this study, cinamon as a core material was nanoencapsulated with chitosan alginate at a ratio of 1:...
متن کاملFreeze-fracturing in ultrahigh vacuum at -196 degrees C
Conventional freeze-etching is carried out in a vacuum of approximately 10(-6) torr and at a specimen temperature of -100 degrees C. The relatively poor topographic resolution of most freeze-etch replicas, and the lack of complementarity of morphological details in double replicas have been thought to be caused by structural distortions during fracturing, and radiation damage during replication...
متن کاملFreeze-fracturing in normal vacuum reveals ringlike yeast plasmalemma structures
The fine structure of the regular arrays of subunits seen on both plasmalemma fracture faces in resting and starved Saccharomyces cerevisiae (baker's yeast) has been compared using different freeze-fracture replication methods. Freeze-cleaving was carried out at 173 degrees, 133 degrees, and 108 degrees K under a vacuum of 2 X 10(-7) torr (2.6 X 10(- 7)mbar) or under liquid nitrogen at atmosphe...
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ژورنال
عنوان ژورنال: SHINKU
سال: 1963
ISSN: 0559-8516,1880-9413
DOI: 10.3131/jvsj.6.526