cryogenic technique
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2021 ◽  
Author(s):  
Min‐Rui Wang ◽  
Zhibo Hamborg ◽  
Xiaoyan Ma ◽  
Dag‐Ragnar Blystad ◽  
Qiao‐Chun Wang


2020 ◽  
Vol 8 (2) ◽  
pp. 38-41
Author(s):  
Alexander F. Brodnikov

The method and measuring installation for determining the actual critical current values in superconductors, at helium temperatures, coming to the market from domestic and foreign manufacturers of composite wire, round or rectangular section, based on the Nb-Ti alloy, are considered.



2020 ◽  
Vol 170 ◽  
pp. 02003
Author(s):  
Shrikant Gunjal ◽  
Sudarshan Sanap

Machining plays a crucial role in process of economy through the way it contributes around 5% of the country’s total economy. The method of machining has been changed through the last periods due to the competition within the market to urge more profit and High Speed Machining (HSM) plays the vital role to realize the equivalent. Hence, many researchers are working on reduction of the machining cost and consumption of energy. Hard to cut materials have long list of practical applications, which is the main reason to consider their research and development aspects. Thus, it’s important to review the consequences of process parameters mainly like cutting speed, feed rate and depth of cut so as to determine the correlation with reference to key measuring parameters like tool life, surface roughness and tool wear. The authentication of this approach must be proved in future, using different experimental data as high speed machining leads to extreme machining temperature, sudden tool failure and subsequent adverse effects on overall machining performance in all the aspects. Sustainable machining techniques have the effective answer to avoid the adverse consequences of HSM. This paper emphasizes upon the review of application of various sustainable machining techniques like Minimum Quantity Lubrication (MQL), Cryogenic Technique, and Compressed Gas into the high-speed machining of hard to cut materials. Further, the appliance of vegetable based lubricants is highlighted for better comparison.



Nanoscale ◽  
2018 ◽  
Vol 10 (1) ◽  
pp. 82-86 ◽  
Author(s):  
Xingyan Zhao ◽  
Peng Tu ◽  
Jiajing He ◽  
Hong Zhu ◽  
Yaping Dan

We demonstrate a cryogenic technique that is capable of measuring the density of surface trap states in the full half bandgap without the exponential transient photoresponse assumption.



2015 ◽  
Vol 40 (34) ◽  
pp. 11161-11167 ◽  
Author(s):  
Cansu Birgen ◽  
Silvia Garcia Jarque


2008 ◽  
Vol 72 (11) ◽  
pp. 1487-1489 ◽  
Author(s):  
E. M. Belavtseva ◽  
I. I. Chemeris ◽  
L. F. Sukhodub ◽  
A. I. Chemeris ◽  
S. N. Danilchenko ◽  
...  




1999 ◽  
Vol 32 (3) ◽  
pp. 505-509 ◽  
Author(s):  
Xavier Vernède ◽  
Juan Carlos Fontecilla-Camps

A customized glove box for protein crystallization under a controlled atmosphere is described along with a cryogenic technique adapted to freeze protein crystals inside the glove box and a very simple device for studying gas–protein complexes in the crystalline state at cryogenic temperatures. Using these techniques different redox states of oxygen-sensitive crystalline proteins have been stabilized and the interaction of hydrogenase with Xe, a model for the much lighter substrate molecular hydrogen, has been studied.





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