迭

A rapid LC/MS/MS method was developed for the simultaneous determination of rosmarinic acid, caffeic acid and ferulic acid.

本文建立了一种同时快速测定水溶性迷迭香提取物中迷迭香酸、阿魏酸和咖啡酸含量的高效液相色谱－串联质谱分析方法。

The results of analysis showed that the contents of low boiling point components such asα-pinene,camphene,β-pinene,α-phellandrene and β-myrcene in flower oil,which are 17.58 %,13.19 %,1.13 %,2.03 % and 1.02 % respectively, are lower than those in leaf oil.

分别提取迷迭香叶与迷迭香花的精油，并用气相色谱和质谱联用技术分析其组成及含量，共识别出30个成分，鉴定出20个。

Further more, transmission systems with branches of uniform and nonuniform transmission lines can be studied with this method conveniently. Two approaches for solving the ABCD matrices of nonuniform lines are given, one is the method of equivalent cascaded network chain, another is the one-step method.

波形张驰迭代法最近几年才被用来分析多导体传输线的时域响应，在第五章作者用此方法首次分析了具有频变参数的传输线，并将波形的概念进一步推广，给出了用波形张驰迭代技术求解非均匀传输线ABCD矩阵的方法。

First, a special normal transversal at the initial point is constructed and a second-order Taylor's algorithm is used to trace the projections along the aforementioned normal transversal. A curvature based method for controlling iteration step is further proposed by projecting the given point onto the curvature circle of the normal transversal at the initial point. Finally gradient based method for correcting iteration errors is put forward.

首先构造初始点处的一条特殊的法截线，并给出沿着该法截线追踪投影点的二阶泰勒迭代方法；然后将给定点向初始点处的法截线的曲率圆作投影，提出基于曲率的步长控制策略，在此基础上给出了基于梯度的迭代误差矫正方法。

Common Reflection Surface stack is a brand-new and special ZO imaging method, the theory of CRS stack stems from paraxial ray theory, the biggest difference between CRS stack and conventional ZO imaging method is that it consider a reflector R as a circular reflector segment Cr placed in the vinicity of reflector R, Cr can be seen as the second order approximation of the reflector. The CRS traveltime surface is the multi-coverage reflection response of the reflector mirror assigned to R.

共反射面元（CommonReflection Surface=CRS）叠加技术是一种全新的、特殊的零偏移距剖面成像方法，CRS迭加理论源于傍轴射线理论，它与普通的零偏移距剖面成像方法的最大区别是它认为地下反射层是由许多个小反射弧段互相叠合组成的，认为来自某反射点附近的一个邻域内的反射信息都可以对该反射点的成像作出贡献，因此对该反射点进行零偏移距成像时就应该聚焦更多的能量参与迭加。

Unified expression for the iterative of centers is described as to deduce the conditional probability expression of the centers and data weight functions for FKHM. Finally, the partition similitude is used to evaluate the result of clustering.

在中心迭代聚类算法的统一框架的基础上，推导出FKHM算法聚类中心的条件概率表达式以及在迭代过程中的数据点加权函数表达式。

The SEM poles have been calculated theoretically by using the iterative method and contour integral method so far, but the both methods have many defects.

为了从理论上得到散射体的极点，人们提出了许多的数值计算方法，如Newton迭代法，Muller迭代法和围线积分法等，但都存在种种缺陷。

All iterative procedures converg...

在整个迭代计算中，反复采用快速傅氏变换，使迭代解很快得到收敛。

In chapter 1, we discuss several iterative methods and their convergence conditions. While, we also present the techniques in proving the convergence theorem.

第一章，主要对几种迭代法的收敛性进行了讨论，总结了它们的收敛条件及证明各种迭代法收敛性的技巧。

In this Chapter, we establish convergence theorem by using the majorizing method.

第二章，提出了一族具有三阶收敛迭代法，这族迭代法避免了求F的二阶导数。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。