Although advance has been made in the study on control of globin gene expression and switching, key factors of globin gene switching is still unknown till now.
虽然对于珠蛋白基因表达调控及开关的研究已取得许多进展，但至今对于调节这些开关的决定性调节因子仍不明确。
In order to determine the model matching index of switching control, a multiple models switching control algorithm based on effective model matching was presented.
针对切换控制中模型匹配准则的确定问题，提出了一种基于模型有效匹配的多模型切换控制算法。
Based on characteristics of PIN diode switch circuit in rf signal switching, a PIN electronic switch circuit is designed to perform filter switching.
基于PIN二极管开关电路在射频信号切换方面的特性，设计了一种应用于滤波器切换的PIN电子开关电路。
A time optimal control method switched by time is put forward in the paper based on the concept of subspace of the initial state space. It doesn't need switching curve or switching surface.
基于初始状态空间下的子空间概念，提出一种按时间进行切换的最速控制方法，不需要求取开关线或开关面。
The switching on-off flows are introduced in this paper. By calculating electrical parameters and simulating the switching motion process, the switch can achieve the current transfer of huge current.
本文制定了开关投切的工作流程，通过电气参数计算并对开关投切过程进行仿真分析，本文所设计的开关能够实现特大电流的电流转移。
The switching circuit is offen used in the pulse digital system. As the switching circuit is acted on by capacitive load, the working speed of the switching circuit is limited.
开关电路是脉冲数字系统中常用电路之一，由于负载电容的影响，限制了该电路的工作速度。
A switching device disposed in a substrate is turned on and a program current is applied to a fuse electrically connected to the switching device, thereby cutting the fuse.
将衬底中设置的开关器件导通，并且向与开关器件电连接的熔丝施加编程电流从而切断熔丝。
In such a trend, the power and frequency of load resonant switching power supply based on soft switching requirements also gradually increase.
在这样的发展趋势下，基于软开关的负载谐振开关电源功率和频率的要求也逐步提高。
In high-frequency switching power supply, influence on switching power supply by the more parasitic transformer parameters is increasing.
大功率通信高频开关电源的噪声干扰中除了有谐波的传导干扰外，还存在电磁的辐射干扰问题。
Effects caused by the focusing lenses in Raman cell on the methane Raman laser with self - Q-switching or BDN Q-switching are presented.
本文报导了在同样气压等条件下，喇曼池的聚焦透镜对自调q及BDN调q甲烷喇曼激光器的影响，并对两者进行了比较。
A corrugated pipe and a push-button switch are used for detecting the vacuum degree in the box and for switching off or switching on a vacuum system.
波纹管和按钮开关用以检测箱内的真空度、关断或启动真空系统运作。
A corrugated pipe and a push-button switch are used for detecting the vacuum degree in the box and for switching off or switching on a vacuum system.
波纹管和按钮开关用以检测箱内的真空度、关断或启动真空系统运作。
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