查询词典 at the threshold of

For the low linear saturation threshold of photoelectric detector,a new and reliable method used in diagnostic system is introduced to attenuate high energy laser power density using multilayer dielectric coating.

针对环形光刀取样式高能激光束在线测量系统应用中光电探测器线性饱和功率密度低而被测高能激光功率密度高的特点，采用对取样激光扩束和介质膜衰减片级联衰减的方式，实现了数千倍的线性光强衰减。

The theory of optically activated charge domain is adopted to analyze both the output characteristics and the photoelectric threshold condition of the semi-insulating GaAs photoconductive switch under the non-linear operational mode.

用光激发电荷畴理论分析了半绝缘GaAs光电导开关在非线性工作模式下的输出特性和光电阈值条件。

Femtosecond pulsed laser ; pump-probe ; silicon ; silicon photoelectric detector; damage threshold

飞秒激光；泵浦-探针；硅；硅光电探测器；失效阈值

A two-channel associative system using a CCD camera, an image card, a computer and a liquid crystal light valve as the controlling and input devices, and liquid crystal photoelectric switches as the threshold devices, is proposed.

首次将多通道并行处理的概念引入联想存储系统中，提出一个带有CCD摄像机、图像卡、微机及液晶光阀等控制与输入设备，并以液晶电光开关作为取阈反馈装置的双通道联想系统。

The invention discloses a passive optical network signal monitoring method comprising the following steps: obtaining a PON signal from one side of an optical line terminal and an optical network unit, detecting the photoelectric property parameter of the obtained PON signal and judging whether the detected photoelectric property parameter lower than a predeterminate photoelectric property parameter threshold or not, if it is, a corresponding alarming signal is transmitted to the OLT.

本发明公开了一种无源光网络信号监控方法，包括以下步骤：获取来自光线路终端和光网络单元中一侧的PON信号，检测所获取的PON信号的光电性能参数；和判断所检测出的光电性能参数是否低于预设的光电性能参数阈值，如果是，则发送对应设置的告警信号给所述OLT。

Meantime, the transparent ZnO electrode reduced the spatial separation between the liquid and the underlying electrode, and effectively photoelectric cooperative wetting occurred, with the surface changing from low adhesive to adhesive, which is propitious to develop in this field, such as the feasibility of the patterned photoelectric cooperative wetting, namely, applying a bias lower than the electrowetting threshold voltage, photoelectric cooperative wetting can be realized only at the illumination site, i.e., patterned site.

这一研究有利于拓展这一领域的发展，为开发新型的协同响应的功能浸润性界面材料提供新的思路。同时，浸润性从超疏水到亲水转变过程中，表面从低粘滞状态变为粘滞状态。这一过程为实现光电协同控制的图案化浸润提供了可能性，即在低于电浸润阈值电压的条件下，通过图案化的光照来实现液体图案化浸润。

Patterned wettability transition by photoelectric cooperative and anisotropic wetting was demonstrated on this surface, namely, applying a bias lower than the electrowetting threshold voltage, photoelectric cooperative wetting can be realized only at the illumination site, i.e., patterned site.

在这种薄膜表面，实现了一种通过光电协同控制的各向异性浸润作用来获得液体的图案化浸润的方法，即在低于电浸润阈值电压的条件下，通过图案化的光照来实现液体图案化浸润。超疏水复合氧化锌纳米棒阵列为图案化浸润提供了必要的各向异性浸润环境。

Finally, we realized photoelectricity coupling and gave the optical distribution near the threshold.

最后，实现了光电耦合，并给出了阈值附近光场分布。

The author researched the relationship between the incident photon energy and survey threshold value on field photoemission.

研究了场致光电发射入射光子能量与探测阈值之间的关系。

The photoionization cross sections of Al Ⅶ are calculated from the first ionization threshold to the K shell.

由得到的光电离截面，确定了一些自电离态的共振能量和宽度，结果表明，内壳层激发态的自电离宽度较大。

Alternatively, the con- trollers can use the synchronous rectifier itself or loss- less inductor current-sensing methods to provide overload protection with lower power dissipation.

另外，康威特罗勒斯可以使用同步整流器本身或亏损减少电感电流检测方法，以提供低功耗过载保护。

Mr. Dauber's other Schatz hangs in his home movie studio.

多伯把沙兹的另一件作品挂在家里的电影室。