Technetium-99m hexakis 2-methoxy-2-isobutyl isonitrile (Tc-MIBI) and thallium-201 extraction, washout, and retention were investigated and compared in 20 isolated, isovolumic, retrograde blood-perfused rabbit hearts at flow rates ranging from 0.5 to 3.5 ml/g wet wt min-1 in the absence of tracer recirculation. Mean Tc-MIBI peak instantaneous extraction was lower (0.55±0.10, p
With the development of digital design and manufacturing technology of aircraf, The large-scale overall structural element amount used unceasing increase, as well as the civil aircraft efficiency and the secure request daily enhancement, also proposed to the product manufacture precision a higher request, causes the product examination difficulty to be day by day big, thus to surveyed the technology to propose the new demand, The traditional survey technology has satisfied the airplane spare part with difficulty fast, highly effective, the high accuracy examination request. Current has become based on the three-dimensional model digitized examination technology application makes a connection the airplane complex components and the great size spare part digitization design, the manufacture, the examination integration flow, the promotion examination efficiency and the level key link.
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