Abstract: A blood pump system, comprising: a heart circulation pump (1) for being arranged in a heart so as to pump blood in the heart into an aorta; an aorta circulation pump (2) for being arranged in the aorta so as to supply blood in the aorta to a set organ; and a power transmission section (3) connected between the heart circulation pump (1) and the aorta circulation pump (2) so as to realize power transmission. The blood pump system is capable of accelerating the circulation of the blood in the heart and the blood in the aorta by means of the heart circulation pump (1) and the aorta circulation pump (2), respectively, thus assisting in improving the blood supply function of the heart. Moreover, rotating blades (112) of the blood pump system are adjustable.

Abstract: A compound midazolam-D3 and its preparation method as it's synthesized from 7-chloro-5-(2-fluorophenyl)-1,3-dihydro-2H-1,4-benzodiazepin-2-one (Compound II), by ring closure reaction with ethyl isocyanoacetate, hydrolysis with base, ring-opening with acid, ring closure under high temperature, and reacted with trideuteromethyl reagent; the synthetic route has advantage of short synthetic route appropriate, accessible and affordable. The prepared midazolam-D3 has characteristic with high purity, high deuterium content and very good stability.

Abstract: The present disclosure provides a method and a device for generating a desktop effect and an electronic device. The method includes: obtaining an image captured by a camera; loading the image as a texture map to a quadrilateral object to generate a first object; loading the first object to a container object to generate a second object; adding the second object to a preset service; and replacing a desktop wallpaper service with the preset service, and displaying a desktop effect corresponding to the preset service.