效率公式 meaning in English
efficiency formula
Examples
- After introducing the background and the trend of research on ppv thin film light - emitting diodes ( leds ) and the structure of ppv device and its characterizes , the theoretical model of the leds * light - emitting efficiency was presented . based on this model , the formula of light - emitting efficiency was deduced to be : the injecting - currents and the recombining - efficiencies were calculated nwnerically , we found the calculated results agreed very well with the experimental results under the electric field from 0 . 5 x 106 to 1 . 5 x 106v / cm , the numeral calculations and theoretical analyzes of the light - emitting efficiency were done . the conclusions were as follows : ( 1 ) the basic mechanism of the injection transportation and recombination of the carriers which were presented in this paper were proved to be right ; ( 2 ) the electroluminescence in ppv thin film is the result of exciton recombination , the light - emitting efficiency was affected by many factors
本文主要研究聚对苯乙炔（ ppv ）薄膜发光二极管发光效率及主要影响因素，简单地介绍了ppv薄膜发光二极管的研究背景及发展趋势、 ppv器件的结构和性质后，提出了一个计算器件发光效率理论模型，利用这个理论模型得出了发光效率公式的表达式：并对注入电流、复合效率等进行了数值计算，通过合理地选择计算参数，发现计算值在场强为0 . 5 10 ~ 6 1 . 5 10 ~ 6v / cm的范围内与实验结果较好地符合，在此基础上，对发光效率进行了数值计算和理论分析，结果表明：计算结果与理论研究结果相符较好，得出结论如下： （ 1 ）本文的理论推导正确地反映了器件中载流子的注入、传输和复合等基本机制； （ 2 ） ppv薄膜中的电致发光是激子复合的结果，发光效率受多种因素影响。 - Because this technology is not mature , there is no correlative systemic theory and unitary efficiency expressions , the research of the countries is also primary . the attempts are to research the components model of amtec and the experiment research
由于此项技术还没有成熟，没有相关的系统理论和整体的效率公式，各个国家所进行的研究也都是很初步的，进行的探索主要有amtec装置所涉及到的各个部件的理论模型和实验研究，以及在此基础上的简单实验装置的实验研究。 - In this paper , the author has inferred the instantaneous efficiency equation during rise and return and the general efficiency equation during rise , return and the whole motion cycle respectively by analyzing two kinds of force states of in - line roller follower cam mechanisms in detail
本文作者通过详细地分析直动滚子从动件凸轮机构的两种受力状态，推导出了直动滚子从动件凸轮机构在推程阶段以及回程阶段的瞬时效率公式以及在推程阶段、回程阶段以及整个运动循环内的总效率公式。