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This paper starts from the structure features and fire characteristics of an atrium building, and clarifies the importance of the mechanical smoke extraction system. The disadvantages of China's code about the smoke control system design in an atrium are analyzed. The influencing factors of the smoke removal efficiency is studied in this paper including smoke evacuation quantity, atrium shape coefficient,...
RT (rotation and translation) scan mode for 2D (two-dimensional) CT (computed tomography), based on multiple axes, can scan large-sized work pieces and components with paraxial X-ray beam. Compared with the traditional second generation scan mode of TR (translation and rotation), it can save about 3/4 times of the scan time. The accurate reconstruction algorithm by region, can remove the artifacts...
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