| 1. | Afterwards , a frequency impedance method is proposed in this dissertation 接着介绍了一种频域方面的阻抗模型。 |
| 2. | Invcstigation of electro - mcchanical impedance method for structural health monitoring 机电阻抗技术用于结构健康监测的研究 |
| 3. | Application of operator impedance method in computing transfer function of test system 算子阻抗法在求解测试系统传递函数中的应用 |
| 4. | Standard practice for portable hardness testing by the ultrasonic contact impedance method 使用超声接触阻抗法的便携式硬度试验的标准规程 |
| 5. | Electrical bio - impedance method : a noninvasive measurement and evaluation technique of gastric motility function 以阻抗法实现胃运动功能的测量 |
| 6. | This paper analyzes detailedly the principles on distributed busbar protection - current instantaneous value differential method , impedance method , and put forward the new method of current fault component phase method , then compares with these methods 本文详细分析了分布式母线保护中的原理?瞬时值电流差动法、阻抗法,提出了电流故障分量相位法的新方法,将这几种方法进行比较。 |
| 7. | Corrosion action slope cable used in cable - stayed bridge in different corrosion medium such as synthesis sea water , solution nacl and simulation acid rain are studied by electrochemical method , for example , linear polarization , tafel extrapolation and ac impedance method 对此,本论文以人造海水、 nacl溶液、模拟酸雨作为腐蚀介质,针对不同类型的钢绞线,采用线性极化法、 tafel外推法和交流阻抗法等电化学方法研究斜拉桥拉索结构中钢绞线在不同介质中的腐蚀行为。 |
| 8. | The dynamic predigesting model for passive isolation of flexible base system was established , and the four - pole parameters and machinery impedance methods were adopted to analyse the system , the expression of the responsibility and power flow transmissibility was deduced . by means of the matlab programming language , the responsibility and power flow transmissibility were simulated . proposed the vibration contrl method of optimizing system parameters . the methods proposed in this dissertation , can meet the requirement of decreasing vibration and noise for flexible base , and have some practicability and reference value 对柔性基础被动隔振系统进行了力学建模简化,并采用四端参数和机械阻抗方法对其进行分析,推导出其响应比和功率流传递率的表达式,并利用matlab程序设计语言对响应比和功率流传递率进行了模拟仿真。提出了以优化系统参数为措施的振动控制方法。本文所提出的方法,能够满足柔性基础减振降噪的要求,具有一定的实用性和参考价值。 |
| 9. | Various measurements including sem , tem , xrd and ir were carried out to characterize the morphology , structure and compositions of these materials respectively . the electrochemical performance of the electrodes were investigated by use of the cyclic voltammetric , galvanostatic charge / discharge and ac impedance methods . the experimental results from the materials mentioned above and those used currently for supercapacitors are compared with each other 利用扫描电子显微镜、透射电子显微镜、 x射线衍射,红外光谱等测试手段对三种电极的形貌、结构和组成进行了表征;通过循环伏安法,恒电流充放电法和交流阻抗法对三种电极进行电化学性能和寿命研究,并与目前常用的超级电容器电极材料进行了比较。 |
| 10. | The dissertation first generally introduces the present researching and application situation of the domestic and international three fault distance measurement methods which exit now . they are transmission line impedance method and the fault analysis method and the traveling wave method . then , the fault characteristics of the small current grounding system are explained 本文首先概括地介绍了国内外现有输电线路阻抗法、故障分析法及行波法三种故障测距算法的研究及应用现状,说明了小电流接地系统的故障特点。 |