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- stress wave inversion 应力波反演
- Conclusion The early T wave inversion after intervention in AMI had both high sensitivity and specificity in predicting the patency of IRA. 结论AMI患者T波倒置的早期出现,对判断梗死相关动脉开通有较高的敏感性和特异性。
- Conclusion The results showed that left ventricular hypertrophy was the major cause of inducing ST segment depression and T wave inversion. 结论左室肥厚是引起ST段下移与T波倒置的主要原因;
- The paper analyses the stress wave propagating in a variable section bar using HONDO finite element computer program . 利用HONDO有限元程序对应力波在变截面杆中的传播进行了分析。
- Acoustic emission (AE) is stress wave produced when the materials are distorted, or under the outside load. 众所周知,声发射(AE)是材料在受到形变或外力作用时,迅速释放能量而产生的瞬态应力波,是进行结构诊断的重要依据。
- The mechanism of spallation is analyzed as a result of the interaction of the unloading wave and reflected stress wave. 分析了层裂机制,得出靶材是在卸载波及被反射的压力波的共同作用下发生层裂;
- The paper analyzes the reasons for emulsion explosive's passivation by the action of blasting stress wave. 文中分析了爆炸应力波作用致使乳化炸药钝化的原因。
- It is shown that the irregularity of the joint surface apparently affects the stress wave transmission. 研究结果表明:节理面不规则结构明显地影响应力波的传播性质。
- This paper presents a signal de-noising method using wavelet analysis in stress wave detection. 介绍了一种适合于管道应力波检测的基于小波变换的去噪方法。
- The interreaction between the weight hammer and the explosive sample is analysed making use of the stress wave theory. 从刚体动力学观点将这种相互作用简化为二阶系统,可得到一组关于应力、应力率和应力脉冲宽度的表达式。
- Structures, cutting mechanism and stress wave theory of the tunneller a re presented and analyzed. 文章对这种掘进机的结构、截割机理及应力波理论进行了介绍和分析。
- The process problems of composite structures using interference fit technology can be solved by use of Stress Wave Riveting (SWR). 分析了复合材料结构采用干涉配合技术存在的工艺困难,利用应力波铆接设备对碳纤维复合材料进行了干涉配合铆接试验,并对铆接质量进行了检测分析。
- transiet exercise-induced U wave inversion 运动引起的一过性U波倒置
- It is the macro effect of accumulative micro fracture in all period of time that spallation failure is induced by reflection of stress wave emerges. 应力波反射诱发层裂过程的发生,是各个时刻不同加载条件下微破裂累积的宏观体现。
- The control equation of stress wave propagation in timbers is given in cylindrical polar coordinates,and the governing equations of the three comp... 用云杉作为一个实例;分析了其弹性常数;讨论了在对称和非对称情况下应力波的传播情况.
- The effect of growth rate and latewood percent on stress wave modulus of elasticity was more obvious than that on vibration modulus of elasticity. 应力波测试的动弹性模量和生长率及晚材率关系密切,超过振动测试的弹性模量和生长率及晚材率关系。
- This paper analyses the producing causes of stress wave,introduces the vibrating technique and hazard of stress wave,puts forward the solution mode. 分析输送带中张力波产生的原因,介绍张力波振荡的机理,指出振荡的危害性,提出解决的方法。
- Stress can be the undoing of so many fine players. 紧张可能是这许多优秀选手失败的原因。
- In this paper, the attenuation phenomenon of stress wave transmitted through a fractured rock specimen has been studied by the method of the Split-Hopkinson bar. 本文用 Split-Hopkinson 压力杆装置研究了应力波通过破裂岩石试件的衰减现象。
- The plane-section assumption was not congruous in low strain dynamic tests on pipe piles,so the propagation of stress wave couldn't be expressed by 1D wave equation. 管桩低应变检测时,平截面假定并不满足,应力波的传播不能简单地用一维波动方程描述。