منابع مشابه
Predicting equilibrium structures in freezing processes.
We propose genetic algorithms as a new tool that is able to predict all possible solid candidate structures into which a simple fluid can freeze. In contrast to the conventional approach where the equilibrium structures of the solid phases are chosen from a preselected set of candidates, genetic algorithms perform a parameter-free, unbiased, and unrestricted search in the entire search space, i...
متن کاملInteractions among Flooding, Freezing, and Ice Encasement in Winter Wheat.
Exposure of winter wheat (Triticum aestivum L.) to various combinations of flooding and freezing stresses induces much greater damage than the individual stresses. Cold-hardened plants flooded for 1 week or exposed to -6 degrees C for 1 week show 100% survival, while survival of plants exposed to both stresses simultaneously is reduced by 20 to 30%, and cold hardiness decreases by several degre...
متن کاملFreezing of water in red-osier dogwood stems in relation to cold hardiness.
Studies of stem water in red-osier dogwood (Cornus stolonifera Michx.) using nuclear magnetic resonance spectroscopy indicated that most freezing occurs at temperatures above -30 C in cold-hardy and tender stems. Hardy and tender stems had about the same amount of unfrozen water at -40 C (0.28 gram of water per gram dry weight). When hardy stems were slowly cooled below -20 C, the temperature b...
متن کاملOn the cooling and freezing processes
In the last period, the mass and heat transfer processes are important subjects in the cooling and freezing food product domain [1]. The past years literature’ study reveals an increasing interest for controlling and freezing front propagation in these kind practices [1,2,3]. A series of analytical or numerical approaching were developed [3,4,5]. The present paper exposes a comparative investig...
متن کاملCryomicroscopic Investigations of Freezing Processes in Cell Suspensions
This study evaluates the freezing response of three different cell types, Pacific oyster embryos (~50 m in diameter), Jurkat cells and HeLa cells (~12 to 15 m’s in diameter), using cryomicroscopy. Freezing experiments were performed on oyster embryos at cooling rates of either 5 or 10 ̊C/min, while Jurkats were cooled at either 1 or 10 ̊C/min and HeLa cells were cooled at either 1, 15 or 20 ̊C/...
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ژورنال
عنوان ژورنال: Australian Journal of Biological Sciences
سال: 1967
ISSN: 0004-9417
DOI: 10.1071/bi9671025