查询词典 PEC

In PEC trimers, the energy transfer paths in PEC monomers remain, but the transfer rates between the chromophores become higher due to strong couplings between pairs of the nearest neighbor chromophores 1α〓-PVB/2β〓-PCB. Meanwhile, a new energy transfer path with a time constant of about 40 ps emerges among the three β〓-PCB chromophores of C〓 symmetry in PEC trimers.

在PEC三聚体中，在相同单体中的能量传递途径仍存在，由于三聚体毗邻的1α〓-PVB/2β〓-PCB色团对之间的强耦合，使不同色素之间的能量传递速度加快；同时，在PEC三聚体中出现新的能量传递途径：3个具有C〓空间对称性的β〓-PCB之间所发生的较快速的能量传递（约40 ps）。

Finally, the PEC-treated LEDs are packeted as the TO-Can and Lamp formal to measure the output power. The fabricated LEDs through the PEC process have 14.6% output power enhanced compared with the general LED at 20 mA operation current.

最后将基板磨薄切割劈裂成晶粒，并且以 TO-Can 与 Lamp 形式封装，量测电性资料与光学特性，发现表面结构的改变也影响发散角度，经过处理的晶粒有较大的发散角度，最终封装成 Lamp 形式的光输出功率增加14.6%。

Based on the principle of PEC, surface cracks mainly affect the high frequency components and subsurface crack mainly affect the low frequency components, so the PEC signals can be analyzed in frequency domain, which can eliminate the influence of noises during measurement. A method of frequency spectrum separating point is proposed for flaw classification, which enhances the accuracy in classification of defects. The agreement between theory and experiment shows that the present method is valid and applicable.

通过对脉冲涡流的理论分析发现，表面裂纹主要影响脉冲频谱中的高频成分，而表面下裂纹主要影响脉冲频谱中的低频成分，因此可以将时域中易受噪声影响的脉冲涡流信号变换到频域分析，提出了"频谱分离点"的方法来对裂纹进行分类识别，提高了缺陷分类识别的正确率，理论分析和实验结果相一致，证明了该方法的正确性和有效性。

An archaeologically interesting place is ertova pec, 15 km from the spa, where during the Ice Age prehistoric people have settled.

网络连接：酒店在酒店客房提供调制解调器网络连接，收费是每30分钟 EUR 1，00 。

Results from model analysis show that, the future benefit of repeated game, reputation spill-over effect, and inducement affect PEC, then affect corporational transaction efficiency.

模型分析结果表明，正是重复博弃下的未来收益、声誉溢出和诱因底线等因素影响了PEC，进而影响企业间交易效率。

Part Ⅱ human fibroblasts and keratinocytes were cultured on the Chitosan-BSA PEC scaffold for tissue engineered derma and epidermis.

用人的成纤维细胞和角质形成细胞在材料上做较长时间的培养，试图培养出完整的真皮与表皮。

The method of PEC-TDS surface integral equation is used to analyze the microstrip antenna due to the substrate is much smaller than the wavelength.

该论文并不具备太大的实际意义，利用积分方程方法计算微带天线，其关键问题在于分层介质格林函数的计算问题。

In this paper, the status and the development home and abroad of the PEC technology are illustrated.

本文首先阐述了脉冲涡流检测技术的特点以及国内外研究现状和发展趋势，论述了脉冲涡流作用原理及其理论基础。

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令您旅途省钱，在柏林度过舒适的假期或商务旅行。

At last, on the base of experiment, a equipment of PEC thickness measurement is built up.

最后在实验的基础上，试制了脉冲涡流测厚装置，对测量结果进行了分析，提出了检测装置的改进方案。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。