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In order to diagnose phenylketonuria early and rapidly for newborns,the fluorescence method for detecting phenylalanine is proposed.

苯丙酮尿症是一种由于人体正常染色体缺陷，造成的新生儿体内苯丙氨酸代谢紊乱性疾病。

Rate constants of carbon dioxide radical anion〓 reacting with 5,5dimethyl-1-pyrroline-N-oxide、1-naphthoquinone and N,N,N,N-tetramethyl 1,4 -phenylene diamine were determined by detecting the changes of radical concentrations with time, and they were 5.5×10〓mol〓Ls〓、4.5×10〓mol〓Ls〓 and 6.7×10〓nol〓Ls〓 respectively.

测定了在含〓的CdS胶体体系中〓与5，5-二甲基-1-吡咯氮氧化物、1-萘醌和N，N，N，N-四甲基对苯二胺正离子自由基反应的速率常数，它们分别为5.5×10〓mol〓Ls〓、4.5×l0〓mol〓Ls〓和6.7×10〓mol〓Ls〓。

This method is suitable for detecting lead and cadmium in phosphoric acid.

该方法适用于测定磷酸中铅镉。

Then, the technique is applied to study the coherent dynamics by detecting the photoconductivity for bulk GaAs, and fluorescence for rare earth solids.

然后，我们在研究了半导体材料和稀土样品的稳态性质后，用上述方法测量了GaAs体材料的光电导信号和稀土材料的荧光信号，研究其激发态的相干态动力学过程。

According to the characteristic of this model,a method of detecting the weak photocurrent signal using cross correlation method is given,and the simulated experiment circuit realizing this ranging method is designed.

根据该测距模型的特点，提出了运用互相关法检测高频振动产生的微弱光电流的方法，并设计了模拟实验电路。

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。

Using photoelectricity detecting control, is stable and reliable.

采用光电检测控制，稳定可靠。

Firstly, electrization knowledge related to the research is introduced. After a deep study on various contact loss detection techniques, especially on the electric arcs detection techniques, we draw the conclusion that the untouched detection technique based on phototube sensor can acquire exact contact loss information, and will to be the leading technique for contact loss measurement in future. Secondly, combining with the special railways system in our country, we analyze the cause of the arcs, and the influence on the power supply system and the on board traction drive due to the arcs in detail, and study the arcs' spectrum characteristic. We also analyze detecting principles and put forward with a method - using phototube sensor to detect the contact loss arcs, conceive the configurations and detection flows of the measurement.

文章通过对电气化铁道相关知识的了解及对国内外离线检测技术的深入了解，尤其是对离线电弧检测技术的了解，总结出了基于光电传感器的非接触离线电弧检测系统能够得到准确的弓网离线情况，并且是国内外检测技术的发展方向；文章详细的分析了离线电弧产生的原因，电弧对机车牵引动力的影响情况，研究了我国铁路系统中离线电弧的光谱特征分布；分析了系统的检测原理，提出了采用光电传感器实现对离线电弧进行检测的方法，并设计了"电力机车弓网离线电弧检测装置"的检测功能和管理功能，规划了系统的组成结构及检测流程。

The probability of detecting pitta was highest in the active selection cells within predictive areas.

每网格内的发现机，以在预测区域内的刻意选择区最高。

Furthermore, the author analyzed the influence of different hardwares on image quality, grabbing speed and detecting speed in detail, and proposed some principles about selection of camera lens and plane mirror.

并详细探讨了硬件的选择对图像质量、采集速度、检测速度的影响，给出了镜头焦距和平面镜的确定原则。

What was it that made you want to change sider ?

是什么使你临阵倒戈？

I don't know what he wants, but let's play along with him.

我不知道他要干什么，可我