在断通靶测速系统工作原理、组成特点分析的基础上,研究了海上模型试验中聚能射流速度测量方法及系统的海上工程应用方法,进行了实测数据分析。结果表明:采用断通靶测速系统进行聚能型战斗部水下射流速度测量方法可行,可为聚能型战斗部水中兵器的毁伤分析、数值模拟校核及战斗部结构设计等提供有效的技术支撑。%Based on analysis of the principle and performance of connected-disconnected probe system, measurement method of jet speed in shaped charge warhead model test underwate and application method were researched,and model explosion test on the sea was analyzed.Measurement result shows that it’s doable using connected-disconnected probe system for jet speed underwater measurement of shaped charge warhead,which can provide effective technical support for the damage analysis,numerical simulation and the design of the warhead structure checking of shaped charge warhead in the water.
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机译:目的:通过使用组织学结果作为参考标准,研究ELASTPQ测量对良性和恶性局灶性肝病变(FLLS)的鉴别诊断的价值。材料和方法:共有154名患者。对测量剪切波速度(SWS)的每个病变进行ELASTPQ测量。评估了FL1与周围肝脏的SWS和SWS比的差异,研究了切断值。接收器操作特征(ROC)曲线被绘制以评估诊断性能。组织学作为金标准通过患者的手术获得。结果:共有154例病变,包括129名(83.7%)恶性FLLS和25(16.3%)良性物质。 SWS的恶性和良性FLLS显着差异,2.77±0.68 m / s和1.57±0.55 m / s(p <0.05)。对于良性FLL的恶性为2.23±0.36,每个FL1与周围肝实质的SWS比为2.23±0.36(P <0.05)。差分诊断的切断值为SWS和SWS比率为2.06米/秒。结论:ELASTPQ测量提供了FLLS的可靠定量刚度信息,可能有助于恶性和良性FLL之间的差异诊断。