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    The effect of Sm ? Ca substitution on mechanical properties of BSCCO superconductors
    (2007) Yılmazlar, Mustafa; Öztürk, O.; Him, Aydın; Akdoğan, Mustafa; Terzioğlu, Cabir
    In order to investigate the effects of Sm substitution on the mechanical properties of Bi-Pb-Sr-Ca-Cu-O, Bi1.6Pb0.4Sr 2Ca2-xSmxCu3Oy superconductors with x = 0.0, 0.0005, 0.001, 0.005, 0.01, 0.1, 0.5, 1.0, 1.5 were prepared by standard solid-state reaction methods. The mechanical properties of these compounds have been investigated by measuring the Vickers hardness, yield strength, porosity, and SEM. These measurements showed that the Vickers hardness, yield strength, and porosity increased gradually with increasing Sm concentration. © 2007 THE PHYSICAL SOCIETY OF THE REPUBLIC OF CHINA.
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    Pneumosinus dilatans of the ethmoid sinus presenting with exophthalmus: a case report and review of the literature
    (British Inst Radiology, 2007) Yazıcı, Burhan; Erdoğmuş, B.; Güçlü, E.; Öztürk, O.
    Pneumosinus dilatans (PSD) is a rare condition of unknown aetiology in which there is enlargement of the paranasal sinuses by air, where the affected sinus expands beyond the normal boundaries of bone without thinning of its bony walls. The case of a 28 year old male with PSD, who had gradually increasing exophthalmus and diplopia, is presented and characteristics of this condition are reviewed with literature data.