نتایج جستجو برای: آلیاژ ti 6242
تعداد نتایج: 38193 فیلتر نتایج به سال:
The Pepper Wreck is an early 17th Century nau da India, the first Portuguese Indiaman ever to be excavated by archaeologists, and it is believed to be the remains of the Nossa Senhora dos Mártires, lost on the Tagus River sandbar, Portugal, in 1606. The archaeological remains yielded enough information to allow a tentative reconstruction of the hull and rigging. A series of tests was performed ...
In this paper we address a supply vessel planning problem arising in servicing oil and gas offshore installations. Supply vessels provide offshore installations with necessary supplies on periodic basis from offshore supply bases according to weekly sailing schedules. The execution of weekly schedules during the year is affected by weather conditions influencing on sailing time and service dura...
Introduction: Different neutron rich isotopes (Ti, Cr, Ni and Zr) display well documented isotopic heterogeneities between various meteorite groups and the Earth-Moon system [16]. The origin of these variations is not well understood. It has been suggested that the observed Ti isotope pattern in bulk solar system materials was generated by thermal events during solar system formation [2]. An al...
Copper (Cu) could be suitable to create anti-infective implants based on Titanium (Ti), for example by incorporating Cu into the implant surface using plasma immersion ion implantation (Cu-PIII). The cytotoxicity of Cu might be circumvented by an additional cell-adhesive plasma polymerized allylamine film (PPAAm). Thus, this study aimed to examine in vivo local inflammatory reactions for Ti6Al4...
conclusion the myocardial grayscale intensity, velocity and displacement can effectively reflect the situation of steiri in patients after cardiac operation, and ti (cvi) has a higher performance in discriminating between patients with and without steiri. background the timely diagnosis of presence or absence of reperfusion injury after cardiac operation is critical for the patient’s outcome. w...
n 1499, when portuguese explorer vasco da gama returned home after completing the first-ever sea voyage from Europe to India, he had less than half of his original crew with him— scurvy had claimed the lives of 100 of the 160 men. Throughout the Age of Discovery,1 scurvy was the leading cause of death among sailors. Ship captains typically planned for the death of as many as half of their crew ...
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