成角度的

The main problems researched in the dissertation and achievements are as follows: The dissertation explains the science background and the theoretical and actual meaning of the task. The progress and the problems of the flow imaging technique are briefly explained. The advantages of electrical capacitance tomography are discussed. The paper discusses the formation and operating principle of ECT, and builds up the definite mathematical model by detail theoretical analyse, and establishes the Finite Element Model of the system by changing the finite boundary value problem of ECT into equivalence variation problem according to variation principle. On the basis of the FEM of the system, the paper builds the finite element model of the capacitance sensitivity field distribution and programs its finite element simulation software and proves the validity of the FEM of the ECT from different aspects. With the FEM and the qualitative analyse of the effect of each structural parameter of the capacitance transducer on its capability, this paper optimizes the structural parameters of the capacitance transducer, and obviously improves its capability. The compare of the simulated result with the static experimental result shows that the error of them is less than 0.9%.

其主要研究内容包括：阐述课题研究的学术背景及其理论与实际意义，概括总结出流动层析成像技术的发展现状和存在的问题，指出电容层析成像技术的优点；讨论电容层析成像系统的组成及工作原理，进行详尽的理论分析，以变分原理为基础，将ECT的有限元边值问题转换为等价的变分问题，从而建立系统的有限元模型；在系统有限元模型的基础上，建立敏感场的数学模型，编制有限元的仿真软件，并从不同角度证明电容层析成像系统有限元模型的正确性；利用有限元模型，定性地分析电容传感器各结构参数对其性能的影响，并对传感器结构参数进行优化设计，使其性能得到明显的改善。8电极ECT系统的仿真和静态实验结果的比较表明，它们之间的相对误差小于0。

And by using the single square root operator for wavefield extrapolation and the windowed Fourier frame expansion and reconstruction of wavefield, a method for local angle domain common image gather is proposed, i.e.

提出的波动方程反射角度域共成像道集方法可为进一步的叠前偏移数据振幅随角度变化分析和偏移速度分析工作提供基础。

Its axis is always at the angle to the plane of its orbit – an angle of about 23.5 degrees.

地轴同地球轨道平面总是成一个角度----大约二十三度半的角度。

Its axis is always at the angle to the plane ofits orbit - an angle of about 23.5 degrees.

地轴同地球轨道平面总是成一个角度----大约二十三度半的角度。

Finally, elastic screen propagator with wide angle correction and vector imaging condition are tested with model data, and the migration result is ideal.

利用模型数据，对大角度相位校正后的弹性屏延拓算子和矢量成像条件进行了试验，成像效果理想。

Adopting FMI image log and nuclear magnetic resonance log to quantitative analysis of fractured igneous reservoir and according to formation mechanism and shape of fracture, various fractures are recognized, such as high-angle fracture, low-angle fracture, vertical fracture, reticulated fracture, induced fracture, infilling fracture and corrosion vug.

采用FMI成像测井、核磁共振测井等先进测井技术和其它测井技术，对裂缝性火成岩储层进行裂缝定量分析，根据裂缝的形成机理和形态，识别出的各种裂缝有高角度裂缝、低角度裂缝、垂直裂缝、网状缝、诱导缝、充填缝与溶蚀孔洞等。

In this paper, beamlet prestack depth migration based on Ga borDaubechies frame decomposition is used for angledomain imaging. Through different stack procedures, both common reflectionangle image gathers and common dipangle image gathers are constructed from the loc al angle image matrices.

本文在采用GaborDaubechies框架分解的小波束叠前角度域偏移成像基础上，利用不同的叠加方法由局部角度域像矩阵得到了反射角域CIG和倾角域CIG。

In study, there are six survey scales in this paper:"University Students Internet Using Condition","Internet Addiction Test","Egma Minnen av Bardndosnauppforstran","Relationship Assessing between Happiness and Social Support","Symptom Checklist 90" and "Cartel 16PF". Through testing the groups, analyzing the datum which was obtained and confirming the research question, then from the quantitative angle discussed the relationship of the using internet behavior, the condition of the internet addiction disorder, the degree of the internet addiction disorder, the education way of the parents, the social supports, the psychological health condition and the personality of the university students.

本文使用了6份测量问卷，有《大学生网络使用情况自编量表》、《网瘾成瘾测验》、《父母教养方式问卷》、《社会支持评定量表》、《症状白评量表》和《卡特尔16PF量表》，经过团体测试，对得到的数据加以分析，验证研究问题，进而从定量的角度探讨大学生的上网行为、网络成瘾情况、网络成瘾程度与父母教养方式、社会支持、心理健康状况和人格的关系。

The sand dunes analyses data have shown they mainly consist of well sorted, symmetry skewness and find sands, and the kurtosis peak is narrow or very narrow. There are abundant impacts of mechanic process on the surface of quartz grains. The traces of eolian process often superpose on the traces stamped by river and beach processes. The dish--shaped concavities and mechanic pits are the most common surface textures, but the barchan concavities and curved grain edges are indicated the marks by eolian environment. The heavy minerals assemblages of coastal dunes are dominated by relatively high specific gravity which have stable chemical properity suggesting the mordern high dynamic environments of coast area. The depositional structures of coastal dunes are typified by corss--bed sets composed of steep foreset laminates and gentle windward dipping sets. It also contains some shell fragments and strong worn foraminiferal tests that are impossibly found in inland desert. On the other hand, the sandy deposits of the continental shelf of East China Sea are with wide range of grains, and the depositional pattens are quite complicated.

海岸沙丘是晚全新世以来相对稳定的海平面背景下的海岸带风成堆积，其沉积特征是以细沙为主，分选好，搬运方式以跃移占绝对优势，偏度上近对称，峰态窄到很窄；石英颗粒表面机械作用形态丰富，风成作用形态叠加于河流和海滩过程形态之上，碟形坑和撞击麻点是最为常见的表面形态，而新月形坑和曲脊是其指示性的特征标志；沙丘沙重矿物以化学性质稳定、比重较大的种类为主，反映了海岸带目前的高能动力环境；海岸沙丘沙的沉积构造以高角度前积层和低角度顶积层组成的交错层理为典型特征，同时还含有少量内陆沙漠所没有的少量贝壳碎屑和强烈磨损的有孔虫壳体。

In these cases, some constant findings were found, those are abnormal angulation and/or connection between right hilar bronchus, right main bronchus and trachea, nonvisualization or disappearance of interlobar artery, intermediate bronchus and horizontally oriented pulmonary veins in right lower lung field. These findings can be easily explained by normal anatomy.

在此4例中我们发现一些过去文献所未记载之X光徵象；即右肺门区之支气管与右主支气管丧失直线衔接关系或虽成直线衔接但与气管成宽角度衔接，叶间动脉、中间支气管及右下肺野水平走向之肺静脉消失不见，这些所见可由正常解剖关系得到合理的解释。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。