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Simple harmonic curve is a perfect profile for cylinder inner wall. To decrease the leakage through the clearance of rotor and cylinder, a modified simple harmonic curve with sealed arc is developed.

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Several forms of design storm hyetograph have been developed in recent years. A Gauss-Markov hyetograph is based on non-stationary first-order Markov process. It is a dimensionless hyetograph and the most likely to occur is the average hyetograph.

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The pathogen of the outbreak of acute icteric hepatitis was genotype IV HEV. There is a close relationship between these positive strains and Jap strain. The use of a new highly sensitive RT-PCR primer set and a timely sampling promotes to obtain high positive HEV RNA rate.

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In general, through the hydrothermal fluid geochemical study of the Carlin-type gold deposits in the area, the author believes that some progresses have been achieved.(1) Various types of CO〓-rich inclusions have been discovered and the immiscibility process of the hydrothermal fluids was believed to have been involved in the Carlin-type gold mineralization in the area;(2) It is further proved that the organic matters involved the process of the mineralization;(3) the over-pressure basin fluids is proved to have been existed and played important role in the large scale Carlin-type gold mineralization.

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Establish integrated invertibility theory over it: By R〓R〓 transformation method, we solve the problem of deciding weakly invertibility and finding weak inverse, By founding the bijections between all quadratic form automata and input memory linear finite automata, we find a algorithm to produce all weak inverse quadratic form finite automata.

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Passing analysing The link of the three-arc-sect isometric type surface, built the three-arc-sect isometric type surface equation, found the location of isometric type surface with the finite element analysis method and calculated the link intensity of the three-arc-sect isometric type surface.

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The lack of liver and kidney type PBMC in patients with alopecia areata Thl/Th2 type cytokine gene expression imbalance, presented to Th1-type cytokines and transcription factor T-bet gene over-expression of Th1-type response characteristics, may be involved in the pathogenesis of alopecia areata, alopecia areata may be insufficient evidence of liver and kidney-shaped one of the micro-nature.

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In order to control the flow separation by reducing the diffusion factor and enlarging the diameter of inner circle, the meridian plane profile of the return channel was redesigned, which is achieved by substituting arbitrary curve for the circle with no change of the axial length of the stage. Bezier curve with eight parameters was chose to describe the shape of meridian plane profile, and the optimization of the meridian plane profile was implemented combining back-propagation neural network with genetic algorithm.

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