منابع مشابه
Revival of Mammalian Sperm after Immersion in Liquid Nitrogen
1. A wide variety of procedures was used to test the motility of mammalian sperm after plunging them into liquid nitrogen at -195 degrees C. and later rapidly warming them to 35 degrees C. by plunging them into a suitable balanced and isotonic medium. 2. Using seminal fluid sperm from the same human donor, maximal numbers of motile sperm survived vitrification when the samples were (a) very fre...
متن کاملExperimental Investigation of Cryogenic Cooling by Liquid Nitrogen in the Orthogonal Machining Process
The most emerging needs of the modern metal cutting operation are to increase the material removal rate with better surface finish and high machining accuracy. These objectives can be achieved by reducing cutting temperature in the cutting zone. In metal cutting process, high cutting temperature and its detrimental effects are generally reduced by proper selection of process parameters, proper ...
متن کاملDark-state cooling of atoms by superfluid immersion.
We propose and analyze a scheme to cool atoms in an optical lattice to ultralow temperatures within a Bloch band and away from commensurate filling. The protocol is inspired by ideas from dark-state laser cooling but replaces electronic states with motional levels and spontaneous emission of photons by emission of phonons into a Bose-Einstein condensate, in which the lattice is immersed. In our...
متن کاملImmersion Cooling of Photovoltaic Cells in Highly Concentrated Solar Beams
.................................................................................................... iii ACKNOWLEDGEMENTS............................................................................... iv TABLE OF CONTENTS ................................................................................... v LIST OF FIGURES.............................................................................
متن کاملCultural Differences Encountered by a Novice Chinese Immersion Teacher in an American Kindergarten Immersion Classroom
The research objective of this study was to explore the cultural differences and challenges encountered by the Chinese Immersion Teacher (CIT) and how the CIT deal with the cultural differences in the immersion classroom. A qualitative case study approach was chosen for this research. The participant was a novice kindergarten immersion teacher who was born and educated in a Chinese-speaking cou...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: American Journal of Physics
سال: 1986
ISSN: 0002-9505,1943-2909
DOI: 10.1119/1.14563