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Copyright of Natural Gas Industry is the property of Natural Gas Industry Journal Agency 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.)

目的 分析某部队干部的血尿酸（UA）检测结果，以期为干部健康状况的监测和健康教育提供依据。 方法 评估某部队2015年度630名受检干部血UA的异常情况。 结果 该部队受检干部高UA总体检出率为14.6%。<30岁、40～＜50岁、50～＜60岁组UA检出率均高于总体水平，男性UA异常比例及UA值高于女性，差异均有统计学意义（P＜0.01）。 结论 在该部队干部中应倡导健康生活方式，多饮水、戒烟酒，加强锻炼，保持适宜的体质量和腰围，以便降低高尿酸血症患病风险，做好疾病的一级预防。针对血UA指标异常者，应动态管理，做好二级预防。 [ABSTRACT FROM AUTHOR]

Two evaluation indexes of brittleness (Bd1 and Bd2), which can synthetically reflect the ability of resisting inelastic deformation and the situation of losing bearing capacity, are established based on stress-strain curve,in which the brittleness-drop coefficient R can reflect the difficulty of brittle failure, the stress landing coefficient P and softening modulus M can stand for the strength of brittleness. This paper verifies the applicability of Bd1 and Bd2 by doing uniaxial and triaxial experiments.In the end, corresponding to failure mode, the authors discuss the brittle anisotropy properties of Longmaxi formation shale under the angle of 0°, 30°, 60°and 90°and obtain the results as follows:① For Bd1, the related parameters can be selected freely according to different purposes. Bd2 is comprehensive and sensitive to the confining pressure. The fitting relationship between Bd2 and confining pressure is quadratic parabola.② The brittleness index of shale decreases with the increase of confining pressure and it drops more quickly under low confining pressure than under high confining pressure. It is bigger under the angle of 90° than any other angles and it is relatively small under the angle of 30°, while the confining pressure is same.③ Under the uniaxial compression test, the brittleness index is closely related to failure mode. The index accesses to maximum while the angle is 0° or 90° and reaches minimum while the angle is 30°. Under the confining pressure of 2-20 MPa, the lowering speed of index is supreme while the angle is 0°. Under the confining pressure of 20-30 MPa, the brittleness index all show a rising trend except 90°.④ The confining pressure affects the brittleness index mainly by limiting the radial strain and compacting bedding plane. Under the low confining pressure, the brittleness index of shale decreases for the former is dominant under the high confining pressure, the case is contrary. [ABSTRACT FROM AUTHOR]