互相关

In the first session the fans vibration on-line monitoring system is realized with VC language, also compile auto power spectrum density function, cross power spectrum density function, autocorrelation function and cross correlation function etc spectral analysis function to carry through simple offline fault diagnosis.

首先用稳定性强、扩展性好的VC++语言开发了通风机振动在线监测系统，并编写了自功率谱密度函数、互功率谱密度函数、自相关函数和互相关函数等频谱分析函数来进行简单的离线故障诊断。

Information of system auto and cross spectrum, auto and cross correlation. coherent function, signal to noise ratio, frequency response and impulse response was established to help the study and arrangement of the module components.

由力规及加速规两量测之时域讯号，经快速富利叶转换，计算其自频谱及互频谱，再经反富氏转换回时域之自相关及互相关函数、相通函数、讯噪比、频率响应函数、脉冲响应函数。

The quaternion calculation for spacecraft attitude determination is investigated in this paper,including the transformation between quaternion and the direction cosine matrix,the quaternion differential equation,the selection of time steps for integrating the quaternion equation,and the compensation methods for the noncommutativity error in high dynamic motion.

介绍了四元数计算中的相关问题，包括四元数与方向余弦阵之间的转换、四元数运动方程、求解四元数运动方程时积分步长的选取和高动态应用中非互易误差的补偿，此外还介绍了对偶四元数的发展。

Comparatively, epistasis as a genetic factor would be more important than main-effects of QTL for seedling vigor in rice.

另外还发现，有的CR上的位点同时与多个不同CR上的位点互作，影响种子活力的相关性状。

However, because of the limitation of technology and the lack of flexible statistical method, epistasis, especially the cytonuclear epistasis was neglected too often in complex trait studies.

然而，由于技术发展的限制和相关统计分析方法的缺乏，上位性，特别是核质互作上位性在复杂性状遗传中的重要性常常被研究人员忽视。

As the supplement of the solidification theory, the melting tamperatures of nanocrystals, the glass transition temperatures of nanosized glasses, the ferromagnetic and ferroelectric transsition temperatures and the solid phase transition temperatures as well as the corresponding hysteresis of different materials are calculated and determined. The effect of the pressure on phase transition temperatures and the binary solution nanophase equilibrium diagram is constructed.

作为凝固理论的补充，计算和测定了纳米晶体的熔化温度，纳米玻璃的玻璃转变温度以及铁磁与铁电居里转变温度，纳米晶体的固态相变温度以及相关的动力学滞后，压力对相变温度的影响，二元无限互溶固溶体的纳米相图。

The general formula on equivalent resistance of a laddershaped network is restudied by network method on the basis of A parameter of symmetrical reciprocal network ,and the result is compared with concerning arguments.

基于对称互易网络的A参数，利用网络分析法探讨了梯形网络等效电阻的一般式，并将结果与相关讨论进行了比较。

Positive association were still remained for two locus that MNAT1-rs973063 and PCNA-rs25406 and lung cancer risk even after 1000 times permutation test.During the stratified analysis,we revealed that that several genes in the NER pathway could interact with age,gender,family cancer history and smoking status.

在进行了多重校正后，有两个位点仍显示出关联显著性：MNAT1-rs973063(p=0.02)，PCNA-rs25406(p=0.03)；在随后进行的分层分析中，我们发现NER通路多个基因分别和年龄、性别、肿瘤家族史以及吸烟状况之间存在互作，提示该通路基因位点可能主要是通过和环境交互作用产生效应；我们还进行了单倍型的分析，结果发现PCNA和RPA1两个基因上的单倍型和肺癌易感性相关。

A novel carbonyl transposition led by anilines'nucleophilic addition to methyl 2-keto α-D-glucopyranoside was discovered. And the mechanism of the reaction concerned to an enol rearrangment was provided through tracing the change of 〓H-NMR and 〓C-NMR of a hemiacetal intermediate which was obtained in the reaction of o-phenylene diamine with 2-keto glycoside. Both the intermediate and the converting product were identified by 〓H-NMR,〓C-NMR,〓H-〓H COSY and HMQC.

一、发现了2-位氧化α-甲基D-葡萄糖苷的芳胺亲核加成引起羰基转位的新方法，利用核磁共振氢谱及碳谱对邻苯二胺与2-位氧化α-甲基D-葡萄糖苷加成生成的稳定中间体半缩酮化合物在氘代丙酮中的变化进行跟踪，结合对转化产物的氢氢相关谱和HMQC结构确证，提出了该反应中2-位羰基通过烯醇化互变而转至3-位的机理并得到了验证。

Retrieval techniques based on IR research have found their way into major information services (for example, West Publishing's WIN system, Individual's clipping service) and the World Wide Web (for example, InfoSeek and Lycos).

但是现在情况大有改变，信息检索研究的相关检索技术已找到了应用于信息服务（例如，西部出版的 WIN 系统提供的个人剪辑服务）和互连网（如 InfoSeek 和 Lycos ）领域的出路。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。