在前景中

Based on wave propagation feature, this paper analyses 3D seismic migration algorithms such as alternating direction implicit method, LU decomposition method, and inverse operator approach method. The result shows that the alternating direction implicit method is fast but causes distortion in wave field extrapolation and affects image accuracy; however LU decomposition and inverse operator approach methods are fast while holding circular symmetry of wave field, and are promising in oilfield exploration and development.

在波的传播特征分析基础上，对交替方向隐式法、LU分解法、逆算子逼近法等三维地震偏移算法进行了分析研究，结果表明，交替方向隐式法虽然快捷但是在波场外推中明显产生畸变并影响成像的准确性，而LU分解和逆算子逼近法是保持波场圆对称特征前提下的快速算法，在油田勘探开发中具有较好的应用前景。

The main work and the originality points of this dissertation could be concluded as the following parts:(1) To analyze systematically the mathematical model of LES of air flow in great space, under the case of isothermal and non-isothermal, as well as the combined action of buoyancy and strain. Some basic problems are studied about the LES application into airflow simulation of great space, such as boundary conditions, spatial difference scheme and time advancing scheme, time step etc., which creates the basis for the LES application to indoor airflow simulation.(2) Both the instantaneous and time averaged flow field of great space with multiple jets under isothermal and non-isothermal cases are explored with large eddy simulation method, and also discussed the dynamic characteristics and the law of fluidflow in the great space.(3) Based on the results of LES of the great space and the Fanger thermal comfort indexes, it is brought forward the concept of the series of dynamic thermal comfort evaluating indexes, which could be divided into thermal comfort index with time averaged properties PD, PPD, PMV, thermal comfort index with instantaneous properties IPD, IPPD, IPMV, and time averaged thermal comfort indexes TAPD, TAPPD, TAPMV, and transient situations time averaged thermal comfort indexes TTAPD, TTAPPD, TTAPMV. The differences among them and the calculation methods are discussed, and the four kinds of indexes are calculated with the thermal comfort index PD as an example.(4) Based on the LES results it is discussed the hot air stratification phenomena in air-conditioned buildings in the case with air supply and return registers on the ceiling and the case on the sidewall. The fundamentals of the hot air stratification are studied and the relations of estimating hot air stratification are brought forward.(5) With the advanced apparatus such as hot wire film anemometer IFA300 and laser particle field anemoscope, corresponding model test and site measurements have been done, which are compared with the simulation results and LES is proved a very promising method in air flow simulation indoor.

本文主要工作既创新点体现在以下几个方面：(1)系统分析了等温、非等温和考虑剪切力与浮升力综合作用的高大空间大涡模拟数学模型，并研究了高大空间大涡模拟在室内气流仿真应用中的一些基本问题，如边界条件、空间离散格式和时间推进格式、时间步长选择等问题，为大涡模拟在室内气流计算中的广泛应用打下了基础；(2)首次用大涡模拟方法研究了高雷诺数下高大空间多射流在等温、非等温情况下的瞬时流场和时均流场分布，并探讨了多射流流场的动态特性和流动规律；(3)基于大涡模拟的动态仿真结果和Fanger的热舒适指标，首次系统地提出了动态热舒适评价指标体系的概念：即基于时间平均参数的热舒适指标PD、PPD、PMV；基于瞬时参数的瞬时热指标IPD、IPPD、IPMV；基于时间平均热舒适指标TAPD、TAPPD、TAPMV；以及沿行动迹线的时间平均热舒适指标TTAPD、TTAPPD、TTAPMV，并分析了四类热舒适指标的差异性和计算方法，还以PD值为例对四类指标分别进行了计算；(4)基于数十种工况下空调房间大涡模拟的结果，研究了空调建筑上送上回和侧送侧回两种情况下热分层现象，并探讨了热分层的基本规律，首次提出了避免热分层现象的判断公式；(5)在暖通空调领域，首次使用IFA300热线风速仪、激光粒子速度场仪等先进设备，完成了与大涡模拟相对应的模型试验，并把实测结果与仿真结果进行了对比，说明LES在室内气流仿真方面是一种很有前景的方法。

The painting makes heavy use of shades of blue, violet and green. The sharp, defined outlines of the foreground contrast with the haziness above, where everything is blurred by the soaking and all-embracing rain and damp.

特别值得提到，是画中所使用的暗兰与紫灰的色调如此和谐，前景与人物清晰的外轮廓线与远景的朦胧、模糊形成对比，一个幻境中的真实空间，画中的一切都沉浸在雨的气氛中。

According to the characteristics of seismic reflection such as amplitude, continuity, interior structures and exterior shapes, seven seismic facies, including medium amplitude medium continuity and parallel or sub-parallel sheet facies, disorderly filling facies, disorderly progradation facies, hummocky facies, weak amplitude and medium continuity wedge facies, weak-variable amplitude and poor continuity wedge facies, and broom progradation facies, are recognized from the seismic reflection corresponding to Member 2 of Kongdian Formation which is prospective for oil and gas exploration.

利用地震反射波的振幅、连续性、内部结构和外部形态等地震反射特徵，在具有油气勘探前景的孔二段的地震反射中识别出了中振幅中连续亚平行席状相、杂乱充填相、杂乱－斜交前积相、丘状相、弱振幅中连续楔状相、弱变振幅低连续楔状相及帚状前积相等七种地震相。

Although the net is processional foreground of course of study is satisfactory, also many rational personages point out, nowadays, indigenous game industry is ceaseless in integrated, shirt-sleeve, annex shuffle, guiding principle of own research and development and acting operation strategy develop simultaneously, be in game industry and form the first a group of people of same interest and sea of net You La gradually to get vexillary hand mediumly.

尽管网游行业前景喜人，也有不少理性人士指出，如今，国产游戏产业在整合、融合、兼并中不断洗牌，自主研发方针和代理运营策略并举，在游戏产业中而渐渐地形成第一阵营和网游蓝海中的领军旗手。

Moreover,it is simple in technological operation.The paper introduces in detail the application of thermal spraying to equipment renovation in electric power industry,for example,fan blade,cylinder plane,water tur...

为此，详细介绍了热喷涂技术在电力行业中的风机、汽缸平面、水轮机叶片等设备修复中的具体应用，指出热喷涂技术在电力行业中具有重要意义和广阔的发展前景。

The evolution on Raman spectrum detection technology for diagnosis of cancer, including skin cancer, galactophore cancer, liver cancer, lung cancer, cervix cancer and else tissue cancer, is introduced in this paper, moreover, the deficiency and novel development of Raman spectrum detection technology are discussed.

综述了拉曼光谱测量技术在癌症诊断中的研究概况，其中包括皮肤癌、乳腺癌、胃癌、肝肺癌、宫颈癌及其它组织癌。同时介绍了拉曼测量技术中存在的问题，并展望了拉曼光谱测量技术在癌症诊断中的发展前景。

Parkinson s disease is a degenerative disease of the basal ganglia causing tremor at rest, muscle rigidity and hypokinesia Gene therapy is most likely to cure PD completely, and the most promising one among all the treating ways But its effectiveness and safety have a strong relationship with the vectors chosed This article introduces some usually used virus vectors and their characteristics as well as the trend of virus vector in PD s gene therapy

帕金森病是一种神经节退行性疾病，主要以静止震颤，肌肉僵直和运动减少为临床症状。在其各种治疗方法中基因治疗最有望彻底治愈PD，最有发展前景。但其有效性与安全性与其所选用的载体有很大关系。本文介绍了基因治疗中常用的病毒载体以及它们的特性，并指出PD基因治疗中病毒载体的发展趋势。

Based on abstract method, jurisprudentially discussion, case study, and statistical research, the Article contends that the development and increase of equity proportion of institutional investors has substantially altered the presumption of the shareholder's status in traditional company law.

论文在运用抽象概括、法理探讨、案例分析和统计分析等研究方法的基础上，以机构投资者的发展和股东积极主义的兴起、机构投资者行使股东权利的方式及其行动内容、机构投资者行使股东权利的法律限制与法律风险、机构投资者行使股东权利的受托机制及其自身的治理问题、机构投资者在我国上市公司治理中的地位、作用及其前景为各章内容，对机构投资者在上市公司治理中的地位及其股东权利的行使这一主题展开论述。

Also, it adapts to the prevailing trend of web service, which is drawing map by SVG.The techniques and theories involved in navigating map system based on smart phone are not yet mature, but because of the particular advantage when exploiting mobile information service and because of the commercial chance and huge market, the future of navigating map system based on smart phone is luciferous. So, I must to say it is very important to do some research work to the navigating map system based on smart phone.

由于面向智能手机的导航地图系统所涉及的技术和理论还不够成熟和完善，而面向智能手机的导航地图系统在开发移动信息服务方面有着自身独特的优势，并在人们生活中有着潜在的巨大市场和商机，因此在技术和理论的不断发展和完善中，面向智能手机的导航地图系统有着广泛的应用前景，对其研究有着极其重要的作用。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。