نتایج جستجو برای: metallic bellows

تعداد نتایج: 39676  

Journal: :TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan) 1985

2016
Liang Xu Rongchang Chen Guohao Du Yiming Yang Feixiang Wang Biao Deng Honglan Xie Tiqiao Xiao

Air sacs are thought to be the bellows for insect respiration. However, their exact mechanism of action as a bellows remains unclear. A direct way to investigate this problem is in vivo observation of the changes in their three-dimensional structures. Therefore, four-dimensional X-ray phase contrast microtomography is employed to solve this puzzle. Quantitative analysis of three-dimensional ima...

Journal: :British Journal of General Practice 2013

Journal: :Indian Journal of Science and Technology 2015

Journal: :Journal of the Japan Society for Precision Engineering, Contributed Papers 2004

Journal: :Prehospital and Disaster Medicine 1995

Journal: :Cryogenics 2021

Mechanical applications for polymers at cryogenic temperatures are extremely limited due to decreased atomic mobility and ductility, resulting from glass transitions above the regime (<120 K). As such, polymeric materials known cracking low fatigue life. Crumpling polymer films has been historically researched as a mechanism bypass this brittleness mechanical actuation, but characterization of ...

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