Basing on the Graf′s addition theorem, two expessions, interior and exterior expression, are deduced and the suitable problems for them are discussed. It has been found that the interior expression is the main point for sovling the scattering problem of circular inclusion in half-space. It also has been found that the exterior expression is the key for the scattering problem of circular arc canyon and circular arc alluvial valley, and is one of the main points for scattering problem of circular arc hill as well.

從Graf原有加法公式出發(fā)国产AV无码片毛片一级下载，本文給出了其內(nèi)域型和外域型兩種表達(dá)形式并討論了這兩種表達(dá)的適用范圍国产超碰精品热久久91，同時(shí)指出：內(nèi)域型表達(dá)是求解半空間內(nèi)含夾塞區(qū)出平面散射問(wèn)題的要點(diǎn)中文字幕丝袜无码第一页，而外域型表達(dá)是解決任意圓弧型凹陷地形和任意圓弧型沉積盆地出平面散射問(wèn)題中求解難點(diǎn)的關(guān)鍵国产亚洲精品AA片在线，同時(shí)也是克服任意圓弧型凸起地形出平面散射問(wèn)題求解困難的要點(diǎn)之一国产一级毛片又粗又黄又硬。

Significant improvements to the TOPMODEL were made on the distributed computation of runoff yield in the mesh scale which is equivalent to that of DEM in one hand,and an isochrones hydrograph was calibrated from rainfallrunoff observations for watershed convergence simulations on the other hand.These improvements were made to enhance the simulation ability of the TOPMODEL,meanwhile to extend the model′s adoptability in rainfallrunoff simulations to middle and large scale watersheds.

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The system can receive and pretreat the discrete data of TXT format, realize different pattern three-dimensional visualization of line, different color and texture, etc. and has the functions of real time dynamical browse, three-dimensional coordinates query, grid data and three-dimensional figure export etc.It has too the functions of three-dimensiona contrastive figure drawing and contrastive data export of alterant riverbed terrain.

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The dead reckoning can carry out by setting up kinematics model of mining vehicle on different uneven terrain at different times, sensors such as compass and angular displacement sensors measure the dynamic parameters information, which makes the continuous real-time orientation come true.

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The numerical experiments are also carried out on the forced action of the high terrain in the Tibetan Plateau etc. The distribution characteristics on the average trough and ridge of the terrain force are gained. The actions which the pure mechanical force forms quasi\|permanent planetary wave are studied.

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The main contents and results of research in this paper are shown as following: It is important to built the motion model of a virtual system. As the virtual object is the submarine in this simulation system, we studied on the motion model of the submarine and gave the submarine six DOF space motion equation MultiGen-Paradigm corporation's modeling software named Creator is used, the modeling of all entities and 3D terrain in virtual ocean environment is accomplished. Then introduced the theory of Large Area Database Management and realized the Large area database management; In the course of 3D scene simulation, Vega is utilized to develop the project. The building of 3D scene is done, which includes the simulation of static and dynamic ocean surface, realization of ocean wave, simulation of bow wave and stern wake, utilization of lighting and material, simulation of cloud and fog, kinematics' modeling of submarine etc.

論文的主要研究工作和成果包括以下一些內(nèi)容：建立虛擬對(duì)象的運(yùn)動(dòng)模型是構(gòu)造一個(gè)虛擬系統(tǒng)的關(guān)鍵所在在线A片中文亚洲，建立的運(yùn)動(dòng)模型準(zhǔn)確與否直接關(guān)系仿真對(duì)象模擬的逼真度，由于本仿真系統(tǒng)的虛擬對(duì)象是潛艇国产高清一区二区亚，所以對(duì)潛艇的運(yùn)動(dòng)模型進(jìn)行了研究亚洲区国产日韩区在线观看，給出潛艇空間六自由度運(yùn)動(dòng)方程；利用MultiGen-Paradigm公司的Creator建模軟件完成虛擬海洋環(huán)境中個(gè)實(shí)體模型建模和三維海底地形模型的建模国产成人情侣在线手机观看免费；然后介紹了大地形數(shù)據(jù)庫(kù)管理(LADBM国产城中村嫖妓播放观看，Large Area Database Management)技術(shù)的基本原理，實(shí)現(xiàn)大地形數(shù)據(jù)庫(kù)管理www.Heyoz.com；在三維場(chǎng)景仿真中色视色视影院，使用Vega驅(qū)動(dòng)軟件進(jìn)行軟件開(kāi)發(fā)，完成了三維場(chǎng)景空間的建立A片一级二级三级，主要包括動(dòng)態(tài)和靜態(tài)海洋的仿真911影院在线播放、海浪、船首波浪和傳尾尾跡的實(shí)現(xiàn)在线观看国产爆草网站，燈光和材質(zhì)的使用哪里有毛片网址，云和霧的模擬等。

The terrain types in StarCraft II we have seen so far had names like "Bel'Shir".

這樣命名是不是指叢林這種地形的別稱就叫&拜舍爾&欧美一级看片免费观看视频，仍是說(shuō)每一種地形都是按照擁有該地形的星球名稱而命名的18岁以下禁止访问的网站？

The landform and water level of the peatland are influenced by rainfall and evorporation, and the landform is controlling the form of water level, and water level also restrict the change of the landform.

降雨量和蒸發(fā)量影響泥炭地地形和水位，并且泥炭地地形對(duì)其水位具有控制作用男女晚上啪啪啪黄色网站，同時(shí)水位對(duì)泥炭地地形變化也有制約作用美女白丝黄视频在线免费观看a。

This method can effectively reduce the numbers of artificial dams and local minima.The algorithm has been implemented in five different terrains,showing that the method can effectively reduce the numbers of the local minima.So,it is more realistic for generating terrains model with higher order Delaunay triangulations.

實(shí)驗(yàn)結(jié)果表明，高階Delaunay三角網(wǎng)能夠有效地減少地形中局部極小的數(shù)量国产v日韩免费在线观看，因此a在线视频，采用高階Delaunay三角網(wǎng)建立的地形模型更接近于實(shí)際地形。

Data format of DEM data is given, together with the method of effectively reading DEM data.

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