查询词典 method of induction

The thyristor and stator winding have different topology architecture when the inductionmotor is controlled by the thyristor. Based on the fault characteristics of the inductionmotor, the current through the thyristor and the stator winding are studied when theshort-circuit or open-phase fault is occurred. The reasonable protection method based onthe different topology architecture is given in the thesis, and the induction motor and theover-current of the thyristor are reliably protected.

在分析异步电动机一般故障特性的基础上，针对采用晶闸管对异步电动机进行节能控制时晶闸管与异步电动机绕组所形成的不同拓扑结构，详细分析了在发生短路、断相等各种故障时晶闸管与异步电动机绕组中通过的电流，为实现晶闸管的过流速断和异步电动机的可靠保护提供合理的保护判据。

A recursive matrix method is adopted for computing the magnetic-current-source dyadic Green′s function in anisotropic media. The response of multi-component induction logging in layered and deviated anisotropic formation is simulated by using the obtained dyadic Green′s function. The influence of coil spacing, bed thickness, deviation angle and shoulder bed on the response is analyzed.

采用递推矩阵方法计算各向异性介质的磁流源并矢Green函数，并利用上述并矢Green函数对层状各向异性倾斜地层中多分量感应测井的响应进行数值模拟，分析了线圈距、层厚、倾角和围岩对多分量感应测井响应的影响。

The fermentation culture media for pNSR32/BL21(DE3) was investigated with shake culture method.Based on M9 medium and for the induction of lactose ,so as to determine the optimal concentration of ingredients of medium.

在M9培养基的基础上，以乳糖为诱导剂，对基因重组蛛丝蛋白工程菌pNSR32/BL21(DE3)的发酵培养基进行了优化。

This paper presents a method for estimating harmonic admittances of the induction motor used for the sensorless monitoring of a mechanical system driven by the motor.

引 言 无传感器检测已在感应电机转速测量、机械系统的噪声测量、振动识别以及故障诊断中获得成功的应用[1～ 4] 。

Based on the law of electromagnetic induction, a method to measure the magnetic susceptibility variation of liquid metals was proposed and the instrument was developed. The fundamental of the instrument was also analyzed.

摘 要：提出一种基于电磁感应原理的测量液态金属材料磁化率变化的方法并开发相应装置，分析该装置的基本工作原理。

Methods The influence of inducer concentration and medium on the bacterial density and expression level of target protein in Erlenmeyer flask, as well as the influence of time for induction, method for fed batch and dissolved oxygen on those in 10 L fermentor, were explored.

在三角烧瓶中，探讨不同的诱导剂浓度和培养基对菌体密度和目的蛋白表达量的影响；在10L发酵罐中，探讨诱导时间、补料方式、溶氧量对菌体密度和目的蛋白表达量的影响。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。