几何结构

By changing the value of the blade thickness, cone angle, lead and height of fillet weld, influences of these parameters on the strength and displacement of the screw conveyor are investigated which form the base for optimization of the conveyor structure.

论文还通过调整螺旋输送器的叶片壁厚、半锥角、导程和焊角高等几何结构参数，研究了各参数的变化对螺旋输送器强度和变形的影响，为结构优化设计奠定了基础。

The geometries,electronic structures,polarizabilities and hyperpolarizabilities,as well as the UV-Vis spectra of the two organic dye sensitizers containing bis-dimethylfluorenyl amino benzofuran were studied via density functional theory and time-dependent DFT.

运用密度泛函理论和含时密度泛函理论研究了两种含二-二甲基芴氨基苯并呋喃基团的有机染料敏化剂的几何结构、电子结构、极化率和超极化率以及紫外可见谱。

According to the micrograph of the composite cross-section, the basic hypothesis related to the yarns configuration is presented. Based on the structural parameters of the three-dimensional woven structure, a unit cell structural geometrical analysis model is built up, and analyzes the linear-elasticity mechanical performance using averaging stiffness approach.

基于对复合材料断面显微照片的观察，提出了关于各向纱线形态的基本假设，结合织物的结构参数，建立了三维正交机织物细观几何结构分析模型，并在此基础上，运用刚度平均法分析了三维正交机织复合材料的线弹性力学性能。

We thorough search the stable conformers of aromatic amino acids and arginine and examine the properties of the stable conformers using ab initio and DFT methods. The properties examined include the characteristics of intramolecular interactions, IR and UV spectra, temperature dependent conformer distributions, electron attachment and ionization energies, protonation/deprotonation processes.

木论文对芳香型氨基酸和精氨酸进行了理论研究，研究的性质包括几何结构、电子结构、构刑分布、电离能和电子亲和势、质子化过程、红外谱、紫外谱以及分子内相互作用等方面。

Secondly, we show the intimate relation between the nonlinear control system and the special geometrical strucure and singular structure of a sphere, a cylindroid and a cone.

刻划了球面、柱面、锥面的特殊曲面几何结构和奇异结构与非线性控制系统之间的内在联系。

The structural evolution properties of transition metal clusters containing from 13 to 60000 atoms are investigated by means of the Gupta potential combined with the steepest descent method. Four typical structural motifs are considered: icosahedron, decahedron, face centered cubic octahedron, and hexagonal close-packed.

采用Gupta原子间相互作用势结合最速下降法，对四种典型几何结构：Ih、Dh、Fcc-oct及Hcp，研究了尺寸介于13到60000个原子之间的同族元素Co、Rh与Ir团簇的结构演化特性。

In this project, it is to build a database of inductor applied in differential RF circuit and the geometry of inductor is balanced.

中文摘要在此计画中主要是建立一个应用在差动式RF电路电感的资料库，而主要的几何结构是平衡式的结构。

The comparison of our calculations the ionization potential (IP and electron affinity for silver clusters with experiments shows that PW91PW91 functional give satisfactory results.

理论计算方面也已经有大量的文献报道了自由Ag原子构成的原子簇和纳米粒子的几何结构，物理性质和电子结构性质。

The cylindrical film holes are 45° inclined and perpendicular oriented, there are totally fourteen holes placed on one ribbed wall. Geometrical parameters such as rib angle (45°, 60°, 90° and 120°), rib height (h/e=1.0, 2.0), location of the hole relative to rib on the discharge coefficients and pressure loss characteristics are all studied systematically.

实验中主要研究了肋的角度(θ=45°、60°、90°、120°)、肋的高度(h／e=1.0、2.0)、肋与气膜孔的相对位置、通道横截面的高宽比(H／W=0.5、1.0、2.0)等几何参数对气膜孔出流特性的影响，以及肋的几何结构、气膜孔的出流对通道流阻特性的影响。

In this paper, based on a pill-box window model with a conical-shaped alumina ceramic and Ansoft HFSS software, the relation of VSWR with various electrical parameters in the window is simulated; the effects of variations of the output window structure on electrical field intensity, microwave power flow and quantity of heat are analyzed; the electrical characteristics of frequency bandwidth, power capability and heat dissipation for the pill-box window with conical-shaped or disk alumina ceramic are discussed, which shows that, with a rational structure of the window with conical-shaped alumina ceramic, the output capability of microwave peak and average power may greatly be increased, the secondary electron emission may effectively be suppressed, and heat dissipation may become more uniform and be easier for cooling.

本文在前人工作的基础上，基于圆锥形陶瓷盒形输出窗模型，采用Ansoft HFSS三维计算软件的优化模拟，对该输出窗模型的驻波频率特性与各种结构参量的关系进行了优化模拟，分析了该输出窗片结构变化对其表面的电场分布，功率流分布、热量分布的影响，得出最优模型参数。并且探讨了陶瓷窗片的形状和几何结构对改善输出窗的频带特性、提高峰值功率和平均功率、抑制二次电子倍增方面的作用。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。