Under VUV excitation, photon cascade emission was found in SrB4O7:Pr3+, LaB3O6:Pr3+ and LaMgB5O10:Pr3+.
从发射谱上看这三种发光材料都可以产生光子级联发射,对照Pr3+离子的能级图对各发射峰进行了指认。
The photon cascade emission origi-(nating) from the ~1S_0 level was observed in the SrB_4O_7∶Pr~(3+)(0.
1%,摩尔分数)样品中观察到了来自Pr3+离子1S0能级的光子级联发射。
The observation of photon cascade emission of the Gd~(3+) ion in GdB_3O_6 under ~8S_(7/2)→~6G_J ultraviolet excitation (202 nm) was reported.
报道了Gd3 + 离子在GdB3 O6基质中的光子级联发射特性。
A new phase-shifting cascade high voltage inverter;
一种新型移相级联式高压变频器
Analysis of PWM method for the cascaded multilevel high voltage frequency converter;
级联多电平高压变频器脉宽调制方法的分析
Electrohydraulic Position Servo Using Cascade Pseudo-Derivative-Feedback Control Algorithm;
电液位置伺服系统伪微分反馈级联控制
An example is provided to show how the newly designed harhware and software with three cascading MAX7219 drive 24-digit LED in an intelligent instrument.
介绍了高速串行接口ＬＥＤ控制驱动器 ＭＡＸ７２１９，并就一个应用实例，对三片 ＭＡＸ７２１９级联在智能仪表中应用的软、硬件设计进行了论述。
Study on novel phase-shifted SVPWM modulation of cascaded multilevel inverters;
级联多电平逆变系统的移相式SVPWM调制方法
Novel Phase-shifted SVPWM Modulation of Cascaded Multilevel Inverters;
级联多电平逆变系统移相式SVPWM调制方法研究
Analysis of operation principle for the cascaded multilevel inverter;
级联多电平逆变器的工作原理分析
Applications of concatenation technology in MSTP data service interconnection;
级联技术在MSTP数据业务互联中的应用
An Improved Concatenation Scheme for LDPC and Convolutional Codes;
一种改进的LDPC码与卷积码级联方案
Then the author presents a scheme of concatenation structure to reduce spurs of output .
利用得到的结论提出了合理选择时钟频率的方法,用于抑制DDS输出信号中的相位截断杂散,然后探讨了DDS级联设计的方法,用于降低系统设计中DDS输出信号的杂散,最后进行了计算机仿真,证实了本文方法的可行性。
Simple analysis on cascade connection of low voltage circuit breaker in power distribution system;
剖析配电系统中低压断路器的级联问题
By analyzing the syntax of triggers, summarizing the relation of data, combining the practical application,the relation of data’s trigger is obtained That is data’s transform of different database system , different disposal of same format’s data , amalgamation of different format’s data and existent relation of cascade connection.
为了提高触发器性能,对触发器的语法进行剖析、分解,数据关系应用进行归纳并结合大量的实践应用,得出数据触发关系主要有:不同数据库系统之间的数据转换、同类数据进行不同处理、不同数据融合到一起和数据之间存在的级联关系。