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Copyright of Journal of Shenyang Pharmaceutical University is the property of Shenyang Pharmaceutical University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In order to find out the correlation among the quantitative characters and influencing factors of production of Macridiscus multifarius, high phenotypic traits shell length (SL), shell height (SH), shell width (SW), body mass (BM) of randomly selected different geographic groups of wild equilateral shallow clam in Zhoushan, Zhejiang Province were measured, and relationship between morphological traits and weight traits of M. multifarius was analyzed by path analysis. The results showed that the effects of morphological traits on body mass were different between the two populations, and shell height had the greatest influence on body mass in Shengsi population, while shell width was the most influential trait on body mass in Putuo population. The correlation coefficients between morphological traits and body mass of the two populations were great and with extremely significant correlation. The indirect action of morphological traits on body mass was greater than the direct action. The regression equations of variables with significant partial regression coefficients for body mass were expressed as Y=0.505X1 + 0.773X2 + 0.723X3-41.313, Y =0.258X1 + 0.432X2 + 0.888X3-23.607, where Y represents body mass, X1, X2 and X3 represent shell length, shell height and shell width, respectively. The regression coefficients of the two equations are extremely significant. The results showed that the shell height of Shengsi population was an ideal index to measure the body weight in the breeding of the equilateral shallow clam, while the shell width of Putuo population should be paid attention to, and this may provide a theoretical basis for the breeding of M. multifarious. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Diabetes Mellitus is the property of Chinese Journal of Diabetes Mellitus and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Hydrogeology & Engineering Geology / Shuiwendizhi Gongchengdizhi is the property of Hydrogeology & Engineering Geology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Tianjin Medical Journal is the property of Tianjin Medical Journal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Accurate judgment of conditions and prognosis has important clinical significance in improving survival rate and optimal distribution of liver source in patients with liver failure. This article reviews the current application of prognostic markers for liver failure such as alanine aminotransferase, aspartate aminotransferase, total bilirubin, prothrombin time, prothrombin time activity, and international normalized ratio and summarizes the new markers discovered in recent years, such as inflammatory response-related markers, neutrophil gelatinase-associated lipocalin, immune response-related markers, keratin, intestinal flora, microRNAs, liver failure autoantigen and autoantibody, and hemodynamic disorder. It is pointed out that the prognosis of liver failure is affected by many factors and there is still a lack of more sensitive and effective markers and a standardized prognostic scoring system. The new markers used alone or in combination with traditional markers may help to improve the sensitivity and specificity of prognostic evaluation of liver failure. [ABSTRACT FROM AUTHOR]

The optimization design of space cylindrical cam synchronization mechanism of opposed piston in axial cylinder two-stroke engine is studied. In order to optimize the performance of engine, a model of space cylindrical cam is established, the pressure angle and space cylindrical cam profile are optimized and designed, and the movement law of engine piston is optimized. The performance parameters of the engine under different piston displacement curves are calculated by using GT-power simulation software. And the influence of piston displacement curve on the performance parameters of engine is analyzed. The calculated results show that the movement law of piston is optimized and the engine performance is improved by optimizing the space cylindrical cam profile. With the change in the direction of piston displacement curve, the performance of engine is first increased and then begins to decline. An optimal design method of space cylindrical cam of synchronous motion mechanism in the opposed piston engine is obtained. [ABSTRACT FROM AUTHOR]

The turbocharging matching is researched for the problem of power reduction of two-stroke aero engines at high-altitudes. An one-dimensional simulation model of a natural aspirated two-stroke aero engine was established and experimentally verified. Based on the verified model, a turbocharger is matched,and a turbocharged engine model is established. The structure optimizing and control strategies of bypass valve in exhaust system are proposed to broaden the working range of turbocharger through the calculation and analysis of turbocharging matching at variable altitudes. A two-stroke turbocharged aero engine with 76% power recovery at 7 000 m altitude was designed,which can meet the demand of an unmanned aerial vehicle’s mission profile. [ABSTRACT FROM AUTHOR]