Saoud Ahmed

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To evaluate rotary blood pumps, flow visualization is commonly applied to determine the flow patterns in a centrifugal blood pump, which have a relationship to its hemolytic performance. However, it is very troublesome to visualize the flow near the vanes due to the high rotational speed of the impeller. The rotational speed of the impeller in a centrifugal(More)
To reduce cellular damage by pronuclear microinjection and nuclear transfer, we have recently developed a vibratory microinjection method. A micropipette was fixed to a piezoelectric ceramic with a resonance frequency of 70 kHz. When this micropipette was vibrated, it easily entered a mouse-fertilized egg without any sharp depression of the cell body,(More)
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