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The activities of palladium catalysed cross coupling reactions of substituted bromobenzenes were studied. 分析了温度、化剂、同取代基团对取代溴苯发生钯催化偶联反应活性的影响。
No cross coupling between inductors due to low magnetic shield and high reliability. 漏磁小,不产生耦合,可靠性高。
The infuence of coupling effect was taken into account and aerodynamic damping force was calculated. 考虑了风与结构耦合作用的影响,计算了结构的气动阻尼力。
Adjustable Coupling Effect of Plastic Fiber Dual Taper and Semisphere Cavity[J]. 引用该论文李谷波;葛文萍;郝素君;游善红;殷宗敏;陈建平.
For having missile of two sets of the same side directions autopilot,there is cross coupling between two control channels. 对于具有两套相同侧向自动驾驶仪的导弹,两个控制通道之间存在交叉耦合。
In this paper we investigate the effect of intershell coupling effect to nonlinear photoluminescence in multiwalled carbon nanotubes. 摘要研究了耦合效应对多壁纳米碳管非线性光致发光的影响。
Six liquid crystals intermediates were synthesized by palladium catalysed cross coupling reactions with six substituted bromobenzenes and2 methyl3 butyne2 ol. 以4氟溴苯、,4二氟溴苯、,4,5三氟溴苯、碘溴苯、甲氧基溴苯、丙基溴苯为原料,分别与2甲基3丁炔2醇发生钯催化偶联反应,合成了6个苯基炔醇液晶用中间体。
The aeroelastic property of a wing can he improved by using the bending-twisting coupling effect of composite material skin. 摘要利用复合材料蒙皮结构的弯扭耦合效应可以改善翼面的气动弹性特性。
Coupling effects of LEMP on aerial multiconductor power lines[J]. 引用该论文任合明;周璧华;余同彬;王钊.
Stepped Impedance Resonators(SIR) taken as basic resonator unit of coaxial filters,a kind of generalized Chebyshev coaxial-cavity filter through cross coupling is designed. 利用阶跃阻抗谐振器SIR作为同轴腔滤波器的基本谐振单元,设计了一个利用交叉耦合来实现广义切比雪夫函数的同轴腔体滤波器。
Two coupling coefficients were introduced to describe the coupling effect of diffusion for nonideal system in pervapora-tion membrane. 模型中定义了2个共存因子,用以描述非理想物系在渗透蒸发膜扩散过程中的共存效应。
In the crossing coupling reactions, the yield is at similar level due to unobvious electron effect resulted from the existence of ketones. 苯环上取代基的种类及位置对反应也有影响。在交叉偶联中，由于有酮存在，因此电子效应不明显，产率差不多。谢谢大家！
There is a coupled effect between genes and environment. 有一种基因与环境之间的耦合效应。
A life prediction mod el for TBC was established for presenting the coupling effect of oxidation damage and thermal fatigue damage. 基于研究结果，建立了可以体现氧化损伤与热疲劳损伤耦合效应的寿命预测模型。
The rotational responses of embedded foundations to rocking moments may be significantly underestimated without considering the coupling effect. 若忽略该耦合效应时，则可能会显著低估埋入基础受弯矩作用下之旋转反应。
Because of the coupling effect between scanning lines, the balling phenomenon is more serious on subsequence scanning lines. 激光扫描线间的耦合作用使端点球化现象随扫描线的增加而逐渐显著。
The adjustable coupling effect of plastic fiber dual taper and semisphere medium cavity implemented by using He Ne laser is reported. 报道了用氦氖激光实现的塑料光纤双锥与介质半球(称半球腔)之间的活动耦合效应。
In the mathematical model of PWM rectifier in d-q synchronous reference frame, there is cross coupling between active and reactive components of the line current, which is difficult to control. PWM整流器在d-q旋转坐标系的数学模型中,有功电流与无功电流之间存在耦合,给控制带来困难。
Following with the increase of the gap, the Reynolds number rises, the inertial coupling effect and the Bernoulli effect can not be ignored. 随着间隙的增大，Reynolds数增大，惯性效应和Bernoulli效应占据主导地位。
On the basis of analysis on error model of ultra precision CNC machine tool, the variant gain cross coupling control algorithm is introduced into the servo control of ultra precision CNC machine tool. 文章在分析超精密数控机床误差模型的基础上,将变增益交叉耦合控制算法引入超精密数控机床的伺服控制。