平面

This paper reviewed the developments in 2-D numerical model of the water flow. By means of the latest observation data of the prototype, the detailed analysis was made on the major thalweg, section, island and bottomland, the erosion and deposition of the river bed and the scour hole near the dock and the law of the fluvial process was obtained. Based on the related references, the evolution trend of the channel after the Three Gorges was finished was predicted. The 2-D mathematical model of the water flow was set up and validated using the latest data. With the model, the flow and velocity of several cases were calculated. The stability computation of the bank at the typical section under difference conditions was carried out by adopting the world widely used Geo-Slope slope stability analysis program. Finally, the synthetical evaluation on the influence of the project on the flood level, velocity, river circumstances, bank protection and flood prevention was made and the conclusion that the construction of the dock had little effect on the flood discharge was obtained.

本文介绍了平面二维水流二维模型研究进展，对河道历史演变概述，通过最新原型观测资料对河道近期主泓线、断面、洲滩、河床冲淤、码头附近冲刷坑等进行详细分析，总结近期河道演变规律，并参考有关文献，对三峡建成后河道演变趋势进行预测；建立了平面二维水流模型，并根据最新资料对模型进行率定和验证，采用模型对几种工况组合进行壅水和流速计算；采用国际上广泛应用的Geo-Slope滑坡稳定分析程序对几种工况条件下工程断典型断面岸坡进行稳定性计算；最后总结工程建设对洪水位、流速、河势、堤防及防洪抢险等方面进行综合评价，得出码头建设对行洪影响较小的结论。

On the basis of the modern signalology,this papper relates what is the art beauty and what is the reality beauty and how to find and grab the spirts of plate creation from our the reality in order to give people better visual art beauty and make them go ahead of the reality.

摘 要：本文以现代平面设计中的符号学为基点，阐述了什么是艺术美与现实美，及如何从现实中寻找平面创作的灵感，更好的给人们带来视觉上的艺术美，并超越现实。

Considering the contributions due to viewed cone centred on the object point and extending through the luminnor body, the distribution of intensity in the image plane can be expressed by the integration of emitted powers of luminor body over the entire sightline under the paraxial approximation.

考虑到成像光锥的贡献，在近轴近似下，得到了用发光体的辐射强度表示像平面上照度分布的积分表达式，由此得到下列结果：1沿光路上每一垂直于光路的平面上能量贡献是一样的。2由于光路积分，探测器测到的光强涨落的幅度小于实际的涨落幅度，但在一定的条件下，发光体的涨落图像可重现。

Standard clean room processing was used to prepare the paddle sample. The experiment can be operated by using the electrostatic deflection on the "paddle"cantilever beam and then measure the deposited thin metal film materials on top of it. The optical interference technique was used to measure the deflection of beam with the force.

此微桨型试件是藉由标准的黄光制作流程所完成，悬臂梁设计成梯形主要是为了提供均匀平面应力，以避免传统平行梁应力分布不均匀的缺点，实验时沉积金属薄膜材料於微桨型试件上后，再使用静电力驱动微桨型结构使其产生偏移量，并且搭配光学干涉仪器，用於量测试件受到外力作用下之平面偏移的数据。

By rescaling the system,we obtain the Lorenz-Stenflo system with slow variation of the flow rotation. Based on Routh-Hurwitz criteria,the stabilities of the equilibria are analyzed and the bifurcation sets are sought to divide the parameter plane into different regions,corresponding to different types of the solutions.

通过对系统的重新标度，得到了气流旋转缓慢变化时的Lorenz-Stenflo系统；基于Routh-Hurwitz准则，分析了平衡点的稳定性问题，得到了参数平面上的分岔集，这些分岔集将参数平面划分为不同的区域，在各个不同的区域对应于系统不同的解。

Results Main imaging findings of acute pulmo nary abscess were found to be dense ir regular patchy shadows,cloud -mass form high density shadows,mult iple spheroidal shadows,cavity formation with gas -fluid plane,contai ng gas cysts,mill...

结果急性肺脓肿主要表现为不规则斑片状浓密影，云团状高密度影，多发球形影，空洞及气液平面，含气囊肿，粟粒样小结节影及伴随以上病灶的胸膜增厚、胸腔积液等，其中空洞及气液平面，含气囊肿是其特征性表现。

After the detailed analysis of EBCOT architecture in JPEG2000, the coding information of each bit plane and the corresponding passes can be obtained simultaneously. Therefore, bit plane-parallel and pass-parallel coding is proposed, and its VLSI architecture is shown in details.

通过分析JPEG2000和国内外提出的EBCOT编码结构，指出不仅每一个比特平面，而且对应的编码过程的编码信息可以同时获得，从而给出了比特平面与编码过程全并行处理的块编码方法，并且详细说明了实现的VLSI结构。

The plane-parallel resonant cavity is built up in theory with the U-shaped bending waveguide for TM mode. The beam splitting and convergence effect are also discussed for the structure composed of filling-factor graded wave-like 2D-PC and one-dimensional multilayer thin films.

利用TM模的U型转弯波导构建了新型的平行平面谐振腔，并指出由填充率渐变型波状结构二维光子晶体和一维多层薄膜构成的混合结构在光分束和抑制光束发散方面的作用及其在平行平面谐振腔中的潜在应用。

The marginal division was a flat fan-shaped structure with a volume of (0.48±0.02) mm3, a maximum rostral-caudate axis of 1.6 mm, a maximum dorsal-ventral axis of 2.158 mm, and a widest axis (the diameter at lateral-medial coronal brain section) of 0.17 mm. The marginal division also moved progressively externally from the rostral section to the caudate section, but its scope was larger than that of others. The whole marginal division changed evenly from the rostral section to the caudate one. Its flat structure widened progressively and its dorsal-ventral diameter narrowed gradually and became plate-shaped.

边缘区呈现一个片状扇形结构，体积为(0.48±0.02) mm3，最大嘴尾径为1.6 mm，最大背腹径为2.158 mm，最大内外径为0.17 mm；同尾壳核和苍白球一样从嘴侧到尾侧随着脑平面的增宽边缘区亦逐渐向外侧移位，其移位的幅度亦明显大于脑平面增宽的幅度；整个边缘区从嘴侧到尾侧呈均匀变化，其片状逐渐变宽，长度逐渐变小，从而形成一个盘状结构。

If such a plane is found, the intersection of the two convex polyhedra is not empty.

即有两个多面体的交点位于这一平面，若能找到一个相交平面则可以断定两个多面体

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。