نتایج جستجو برای: end capped conical tubes
تعداد نتایج: 437721 فیلتر نتایج به سال:
Abstract Background: Iatrogenic airway injury after endotracheal intubation and tracheotomy remains a serious clinical problem. In this study we reviewed post-intubation and traumatic tracheal stenosis in 47 patients with a special attention to the cause, hense surgical treatment of the stenosis was performed and the results compared with the literatures. Methods: Since February 1995 th...
When surface wetting drives liquids to invade porous media or microstructured materials with uniform channels, the penetration distance is known to increase as the square root of time. We demonstrate, experimentally and theoretically, that shape variations of the channel, in the flow direction, modify this ‘diffusive’ response. At short times, the shape variations are not significant and the im...
A sugar fermentation medium for the confirmation of Neisseria and related species was developed. The medium contained a commercial supplement and a hemoglobin source prepared from lysed sheep erythrocytes. Bicarbonate in the medium substituted for a CO2-supplemented atmosphere. The medium was dispensed into screw-capped tubes. This medium was compared to cystine-Trypticase agar and the modified...
Little has been written about the structural behavior of conical shells, while conical shells’ construction techniques due to the high rise and small span has always required special attention throughout the history of Islamic architecture. This paper aims to examine how conical shells bear weight loads and resist against bending through a qualitative analysis. After proving that ‘r...
The benefits of multi-layer graphene (MLG) capping on Cu interconnects have been experimentally demonstrated. The resistance of MLG capped Cu wires improved by 2-7% compared to Cu wires. The breakdown current density increased by 18%, suggesting that the MLG can act as an excellent capping material for Cu interconnects, improving the reliability characteristics. With a proper process optimizati...
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