查询词典 phase angle

This contour phase correlation method is superior to the conventional phase correlation in two aspects. Firstly, the contours of images are extracted, and the phase correlation is applied to the contours of images instead of the whole original images, which is more efficient and robust. Secondly, when there are multiple peak values approximate to the maximum peak value in the δ function array, the corresponding translations can be regarded as candidate translations and calculated separately, and the best translation should be determined by the optimization of conformability of two images in the overlapping area.

本轮廓相位相关算法对常规的相位相关算法作了两点改进：(1)提取出图像的轮廓，只对二值化的轮廓图像进行相位相关计算，效率和鲁棒性提高；(2)当相位相关的δ函数阵列中存在多个和最大峰值比较接近的峰值时，将其对应的平移量都作为候选平移量，然后根据重叠区图像的一致性选取其中的最佳值。

Keywords: image feature detection, phase information, image processing, phase congruency, symmetry phase congruency

从利用图像信息的角度，系统分析了图像特征检测问题的研究文献，将图像特征检测方法分为两大类，即基于梯度信息的方法和基于相位信息的方法。

The phase-shifts caused by reflection and transmission of the beam splitter were investigated by its eigen-martix.The general relationship between these phase-shifts of two splitted beams used for coherent combining was obtained,then the fact that when constructive interference occurs in one side of the beam splitter and the destructive interference has to occur in the other side was explained in the point of phase-shift.

利用分束器的特征矩阵研究了分束时产生的反射与透射相移，得到了两束相干光经过分束器分束后进行相干叠加时相移满足的普适关系，从相移的角度解释了分束器一侧发生相长干涉时另一侧必然发生相消干涉这一现象。

The three-phase AC power phase sequence to identify and phase sequence control in industrial and agricultural production is of great significance.

三相交流电源的相序识别与相序控制在工农业生产中具有重要的意义。

The course of conventionalization is very complex, and between the phase of unset phrases and idioms, there is a mid-phase, that is, the phase of quasi-set phrases.

非固定短语演化为熟语的过程是及其复杂的，并非一步到位，一般来说，中间都要经历一个过渡阶段，即准固定语阶段。

The local ordered CoPt〓 Ll〓 phase with good FCC (111) crystalline orientation, which exists at the interfaces of multilayers and in alloy films, was considered to contribute to the PMA in Co/Pt multilayer and Co-Pt alloy films. But the appearance of large amount of ordered CoPt〓 Ll〓 phase or completely disordered Co-Pt phase will result in the decrease in PMA.

Co/Pt多层膜界面处或Co-Pt合金膜中具有FCC（111）织构特征的局部有序CoPt〓 Ll〓合金相的形成被认为可能会对多层膜和合金膜中的垂直磁各向异性作出贡献，但大量CoPt〓 Ll〓有序相或大量完全无序Co-Pt合金相的生成都会导致垂直各向异性的下降。

With increasing La content, however, the phase structure of the alloys 〓(x=0.03-0.1) can be changed from C15 to C14, but that of the alloys 〓(x=0.03-0.1) has not still changed, and the second phase of both alloys decreases. Some diffluent phase appear on the surface of both alloys, because there some holes on the surface of alloys after corrasion.

结果发现，在低La含量时，两种合金均保持原有的相结构，但合金表面存在少量易溶相，在样品制备中由于腐蚀合金表面出现孔洞，合金的活化性能和放电容量得到提高。

The foreland basin phase was controlled mainly by the thrust of Qinlin-Dabie orogenic area during later Jurassic and middle Triassic;the rift basin phase is controlled by fault and deasil circumvolving with the change of stressing during Cretaceous and Paleocene,with strong magma activity;and in the depression basin phase the bas...

盆地地壳结构和小震分布及震源机制解显示地震集中在沉降最大的潜江—沔阳凹陷带附近，震源深度优势分布在15 km左右，即盆地基底附近。

Sludge activation phase, acclimatization phase and aerobic granulation phase. In operation control, the settling-time was used as the key factor for the formation of aerobic granules, which could decant the flocculent sludge and regulate the organic loading, and eventually promote the granulation process.

在运行控制过程中通过将沉降时间作为培养好氧颗粒污泥的一个关键控制参数，它既可以去除反应器中沉降性差的污泥还可以在短时间内调节反应器中的运行负荷，从而促进反应器中好氧污泥快速实现颗粒化。

From 1920s up to Now, various techniques and methods for wave field decomposition, propagation and migration/imaging have been well developed, such as the Kirchhoff asymptotic method, frequency-wavenumber domain phase-shift and phase-shift-plus-interpolation methods, and the one-way wave equation based phase-screen and generalized screen methods, etc.

自上个世纪二十年代至今，波场分解、传播与偏移成像技术经历了将近一个世纪的发展，形成了多种不同的方法，如Kirchhoff波动方程高频近似解方法，频率-波数域的相移(phase-shift)方法和相移-内插方法，以及在混合域中基于单向波动方程的相位屏、广义屏方法等。

I hope that this success is just the first in a long series.

我希望这只是成功的开始。

Three dimensional stresses on the interface of tire and soil, tire deflection and soil sinkage are measured.

测试轮胎——沙土界面上的三向应力、轮胎变形和沙土沉陷；建立考虑剪切应力对沙土承载特性产生影响的车轮牵引性能预测模型；分析车轮作用下土壤的纵向稳定性。