查询词典 coherence

Development of fiber-based optical coherence tomographic imaging system .

光学相干层析系统的建立与研究。

Most variations of most bases arose from transition, and a few of them were transversion. Furthermore, there was great coherence among these changed bases in type

远缘杂交后代的进化可能是一个持续过程，姊妹系内的株系之间某些性状存在差异，这些差异很可能与重复序列的变异有关，这为后生遗传效应机制的研究提供了有用的材料。

Compared with the result of the soild model, it is found that the two results have great coherence. So it is feasible to take the shell model for numerical analysis of trussed combination arch bridge.

论文最后建立了清水大桥板壳有限元模型并利用该模型对该桥的恒载作用工况进行了数值分析，通过与实体模型的结果对比发现，两种模型的计算结果具有比较好的一致性，因此可以利用板壳模型对预应力桁式组合拱桥进行快速、准确的数值分析。

With proper atomic coherence, the performance has the following advantages compared with that of the velocity selection of the ultracold two-level atoms by the micromaser: high resonant transmitted efficiency, low unresonant transmitted efficiency, and large velocity selection scale. The second part includes the fifth chapter.

原子透射几率只受到一种量子干涉效应的影响，其来源为V型的两个跃迁通道，因此Micromaser对入射超冷V型三能级原子束速度的选择性能深深地受到原子相干性的影响，我们发现选取适当的原子相干参数以及其它参数，速度选择性能可以达到很理想的状态：共振原子透射效率高、透射原子束的速度纯度好、速度选择范围大。

Vadim Backman, PhD, a professor of biomedical engineering at Northwestern University in Evanston, Illinois, and colleagues, recently developed the 2 complementary optical techniques that were used in the study. The 4-dimensional elastic light-scattering spectroscopy (4D-ELF) and low-coherence enhanced backscattering spectroscopy use the elastic light-scattering signals from tissue that exhibit characteristic structure-dependent signatures in wavelength and scattering angle, explain the researchers in their paper.

伊利诺斯州埃文斯顿西北学的Vadim Backman生物医学工程博士与其同事，在此研究中应用最近发展的两项互补式光学技术，四维弹性光散射光谱（4D-ELF）与低相干散射增强光谱，运用组织中特殊结构表现的波长、与散射角度的弹性光散射信号来解释这项研究。

Vadim Backman, PhD, a professor of biomedical engineering at Northwestern University in Evanston, Illinois, and colleagues, recently developed the 2 complementary optical techniques that were used in the study. The 4-dimensional elastic light-scattering spectroscopy (4D-ELF) and low-coherence enhanced backscattering spectroscopy use the elastic light-scattering signals from tissue that exhibit characteristic structure-dependent signatures in wavelength and scattering angle, explain the researchers in their paper.

伊利诺斯州埃文斯顿西北大学的Vadim Backman生物医学工程博士与其同事，在此研究中应用最近发展的两项互补式光学技术，四维弹性光散射光谱（4D-ELF）与低相干散射增强光谱，运用组织中特殊结构表现的波长、与散射角度的弹性光散射信号来解释这项研究。

The experimental results show the validness of the mechanism analyses.2. According to the generation mechanism of the leak acoustic signal, the characteristics of the leak acoustic signal are investigated. The auto correlation technology is adopted to descript the leak signal characteristics due to the ability to analyze the coherence of time series. A new procedure to identify the leak acoustic signal from the disturbed noises is proposed based on the conjunction of correlation and approximate entropy algorithm.3. The principle and application in leak location of the correlation and the adaptive filter techniques are introduced. The problems of the traditional leak location methods are analyzed.4. In order to establish the leak detection signal model, the leak acoustic propagation characteristics are investigated experimentally.

从泄漏声产生机理出发，分析了管道泄漏处湍流拟序结构与空泡间相互作用的机理，认为在该机理作用下，泄漏声信号产生过程具有&不可重复&的特征；由于相关函数具有分析时间序列拟序结构的能力，且近似熵从统计的角度区别时间过程的复杂性，因此，提出将信号相关分析和近似熵理论相结合的方法，提取泄漏声信号&不可重复&的特征，辨识管道泄漏故障发生；在实际检测现场，由于各种管内和管外固定声源噪声(如阀门噪声、工地施工噪声等)常导致泄漏误判和漏点定位错误，重点分析了管内固定噪声源的产生机理和特征，为复杂干扰环境下的泄漏辨识提供理论支持。

The requirements of Interference fiber optical gyroscope, optical time domain reflectometer,biomedicine optical coherence tomograph.

讨论了在干涉型光纤陀螺仪、光时域反射计、医学相干检测技术、波分复用技术中对SLD的要求。

And this is because it is generally assumed that such rationality and such coherence are constitutive of the very possibility of ascribing intentional states.

这是因为一般假设这样的合理性和融贯性是由'the very possibility of ascribing intentional states

It is indicated that: 1 at evidence level of 0.01, the chaffs dynamic RCS presents chi-square distribution at S-band and X-band; 2 the density of chaff cloud would decrease with time, which will result in lower RCS; and 3 with increasing of frequency and decreasing of wavelength, the coherence effect between different chaffs would get less, which will result in weaker fluctuation.

结果表明，当显著性水平为0.01时，该箔条云在S波段和X波段的动态RCS服从χ^2分布；箔条云形成之后，箔条密度随着时间的推移而下降，导致其RCS减小；随着频率升高而波长减小，箔条间互耦效应将减小，箔条云RCS的起伏也将减小。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐