نتایج جستجو برای: polytetrafluoroethylene

تعداد نتایج: 2980  

Journal: :Archives of facial plastic surgery 2011
Eduardo C Yap Sherwin S Abubakar Mildred B Olveda

OBJECTIVE To describe the outcomes of dorsal augmentation rhinoplasty with expanded polytetrafluoroethylene (ePTFE) implants in Southeast Asian patients from the Philippines. METHODS Retrospective review of 1054 patients. RESULTS Of the 1054 patients, 90.61% were women and 9.39% were men. One thousand eight patients (95.64%) underwent primary rhinoplasty; 46 (4.36%), secondary or revision r...

Journal: :Optics letters 2010
Martin S Heimbeck Patrick J Reardon John Callahan Henry O Everitt

A transmissive, square-wave Ronchi phase grating has been fabricated from the dielectric polytetrafluoroethylene to diffract an ~0.7 THz beam quasi-optically. When illuminated by a coherent, cw terahertz (THz) source, the spot separation of the ±1 diffractive orders and the diffraction efficiency were measured as a function of THz frequency and rotation angle. The grating performance depends se...

2017
Tamara E. Bouwman Marja J. Aartsen Theo G. van Tilburg Nan L. Stevens

Loneliness stems from a mismatch between the social relationships one has and those one desires. Loneliness often has severe consequences for individuals and society. Recently, an online adaptation of the friendship enrichment program (FEP) was developed and tested to gain insight in its contribution to the alleviation of loneliness. Three loneliness coping strategies are introduced during the ...

Journal: :The Journal of Thoracic and Cardiovascular Surgery 1987

Journal: :The Journal of Thoracic and Cardiovascular Surgery 1989

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