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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。
- On the basis of the theory of vehicle-track coupling dynamics and noise radiation and propagation, mechanism of wheel/rail noise is analyzed. 根据车辆-轨道耦合动力学理论及声辐射与传播理论，分析了列车运行过程中产生轮轨噪声的机理。
- 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。
- Based on the theory of vehicle-track coupling dynamics,the vertical and lateral coupling model of the vehicle-track system is set up. 基于车辆-轨道耦合动力学理论，通过建立车辆-轨道垂横耦合模型，利用时域数值积分法进行了耦合系统的随机响应分析。
- 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。
- In this paper,rigid-flexible coupling dynamics of a curvic beam attached with a central rigid body undergoing spatial large overall motion,is investigated. 研究带中心刚体的作大范围运动的空间曲梁的刚-柔耦合动力学。
- 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。
- 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。
- 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。
- The energy required to generate enough hydroxyl radicals to destroy the cell membrane is much less compared to the energy required to inactivate the cell through DNA cross coupling. 用于产生足够羟基原子团以摧毁有机物细胞膜的能量相比较使DNA双螺杆结构钝化所需的能量少很多。
- Because the flexible arm is a nonlinear and strong coupling dynamic system, the method of fuzzy self-tuning PID controller is proposed. 针对研究对象强非线性和强耦合性的特点，提出了一种具有自适应特点的PID参数模糊自调整控制方案。
- rigid-flexible coupling dynamics 刚-柔耦合动力学
- Rigid-elastic coupling dynamics mode 刚-弹耦合动力学模型
- The main results of the simulation show that the hypoxia phenomena in the PRE are caused mainly by the coupled dynamics of the water stratification and biochemical processes. 珠江口存在的底层水体缺氧现象是水体强烈层化和生化耗氧过程共同作用的结果。
- 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！
- In order to avoid cross couplings between the vertical and lateral motion,decoupling control of a double-channel control rolling missile autopilot was studied. 为消除旋转导弹自旋所带来的纵向与侧向运动的交叉耦合,进行了双通道控制旋转导弹自动驾驶仪回路解耦控制研究。
- thermo-mechanical coupling dynamics 热机耦合特性
- An asynchronous staggered iteration FEM method with explicit difference scheme is suggested to solve solid-liquid coupling dynamic elastoplastic problem. 提出了一个新的次塑性模型并用试验作了初步验证,建议用异步交叉迭代显式差分有限元求解固液耦合动力弹塑性问题。
- It is rash to cross the street without looking both ways. 不朝两边看看就穿马路是莽撞的。
