查询词典 complex surface

This term studies mainly the applications of Theory of covering surface in differential equations, potential theory, complex dynamics and several complex variables, and researches the analysis and geometry properties of random Taylor series and random Dirichlet series.

本项目主要研究覆盖曲面理论及其在微分方程、位势理论、复解析动力系统以及多复变函数中的应用；研究随机泰勒级数、随机狄里克莱级数的分析性质和几何性质。

In order to avoid the singularity in the integration, the integrand was expressed to be sum of complex exponential terms by using discrete complex image method. With generalized pencil of function method introduced, the number, location and intensity of images were obtained without extracting the quasi-static and surface wave terms in the integrand, which makes DCIM more efficient for multi-layered media.

为了避免积分中的奇异性，利用离散复镜像法将积分核用复镜像的指数求和式表示，引入广义函数束方法，可以在不提取积分核中表面波项的条件下，采用数值方法提取准静态项，给出复镜像点的数目、位置和强度，使得该方法在多层介质情况下对格林函数的计算更为有效。

On the one hand,we try to analyze, summarize and discuss that the complex near-surface brings negative impacts on seismic exploration; on the other hand, we want to provide necessary helps for the next field operation in complex area and how to adopt effective seismic technology.

要在复杂的地表与地下地震地质条件下获得较高品质的地震剖面，一方面要克服恶劣的地表条件给野外施工作业带来的影响；另一方面又必须较好地解决和攻克在地震勘探方法和技术上因复杂近地表因素而诱发的各种难题，如地震资料的信噪比很低，干扰类型复杂，静校正问题极为突出，速度分析、叠加成像和偏移归位及构造成图困难等。

After the design with studying to the automatic graduation numerical control backward table of his major hardware device is carried out, the range of processing complex ruled surface by WEDM is widened, and the problem in cutting parts with complex surfaces is solved.

开发了能实现空间曲面零件电火花线切割加工的极坐标加工系统，阐明了系统的组成和运动规律，对其主要硬件装置———翻转式自动分度数控回转台进行了设计和研究，从而进一步拓宽了电火花线切割加工的工艺范围，解决了空间曲面零件的加工难题。

Having carried on the design with studying to the automatic graduation numerical control backward table of his major hardware device, thus widen the range of processing complex ruled surface by WEDM, and solved the problem in cutting parts with complex surfaces.

开发了能实现复杂型面零件电火花线切割加工的多轴联动加工系统，阐明了系统的组成和运动规律，研制了其主要硬件装置——数控回转台，并进行了加工实验研究。

Seismic data acquired in this area has a very low S/N ratio due to complex near-surface conditions. Seismic imaging becomes difficult because of complex subsurface conditions with overthrust structures and faults.

由于地形起伏大，近地表结构复杂，采集的地震资料信噪比较低；以推覆构造为主体的地下地质复杂性给地震成像造成极大的困难。

Having investigated composites of EP coating ultramicro iron using ATPU as surface agent, results showed that with increasing amount of ATPU, density , complex permittivity and complex permeability of composites decreased, and retentivity and coercivity increased.ε"μ"

用ATPU作表面活性剂制备核壳结构复合粒子时，随着复合时ATPU用量的增加，复合粒子的密度、复介电常数和复磁导率逐渐减小，剩磁与矫顽力逐渐增大。

It introduces partial fractions of meromorphic functions, product developments of entire functions, Hadamard's theorem, Riemann Zeta functions, Poisson-Jensen's formula; elliptic functions, including simply periodic functions and doubly periodic functions; algebraic functions and algebroid functions, Riemann surface, Nevanlinna theory, including characteristic functions, the first and second fundamental theorems, growth orders, etc; complex differential equations and complex functional equations, etc.

具体为：亚纯函数的部分分式、整函数的无穷乘积展开、Hadamard定理、Riemann Zeta函数、Poisson-Jensen公式；椭圆函数，包括单周期函数、双周期函数；代数函数和代数体函数、Riemann曲面简介；Nevanlinna理论简介，包括特征函数、第一和第二基本定理、增长级等；复微分方程和复函数方程，等等。在教学内容上充分体现基础性、新颖性。

Results It was found that the content of high-mannose type/hybrid type N-glycans and tri-/tetra- antennary complex type N-glycans were decreased, while biantennary complex type N-glycan was increased on SMMC 7721 cell surface by ATRA or db-cAMP treatment.

结果 ATRA和db-cAMP均使SMMC 7721细胞表面高甘露糖型/杂合型和三/四天线复杂型N-糖链减少而二天线复杂型N-糖链增多。

The content of tri-/tetra- antennary complex type N-glycans was decreased and the biantennary complex type N-glycan was increased on the surface of HL-60 cells by the treatment of ATRA or PMA, but the content of high-mannose type/hybrid type N-glycan was increased by these treatments, the change was just opposite to that of SMMC 7721 cells.

ATRA和PMA也均使HL-60细胞表面三/四天线N-糖链减少和二天线N-糖链增加，但却使高甘露糖型/杂合型N-糖链增加。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。