نتایج جستجو برای: polytetrafluoroethylene

تعداد نتایج: 2980  

Journal: :Applied sciences 2023

The study analysed the tribological performance of five different polymer composites: polyetheretherketone reinforced with 30% carbon fibres—PEEK CF30, 10% fibres, graphite and polytetrafluoroethylene—PEEK MOD, polytetrafluoroethylene 25% fibres—PTFE CF25, polyoxymethylene fibres—POM CF30 ultra-high molecular weight polyethylene—UHMW PE. polymers were tested under sliding regime a reciprocating...

Journal: :Journal of the Chinese Medical Association : JCMA 2007
Hsin-Hung Shih Pei-Leun Kang Chun-Yao Lin Yu-Hsin Lin

Pulmonary artery aneurysm is a rare lesion of the thoracic cavity. Different etiologies have been reviewed, but idiopathic lesions without other symptoms are seldom reported. Usually, surgical interventions are suggested, but the long-term outcomes are not well established. Here, we report a 24-year-old man with main pulmonary artery aneurysm who successfully underwent aneurysmectomy and polyte...

Journal: :The Journal of Thoracic and Cardiovascular Surgery 2009

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