boundary following 中文意思是什麼
boundary following
解釋
邊界跟蹤-
In recent years, plentiful and substantial fruits achieved by the lb method in simulations of hydraulics, multiphase flows, flows in porous media and heat transfer as well as magnetohydrodynamics, have revealed a broad perspective of application of this method, it will become a powerful competitor to the conventional approaches. in order to absorb the recent achievement in theory and application of the lb method, explore new ways in hydraulic computation to promote the development of practice, some work is car ried out in this thesis, as following : advances in the theory research and application, deductive process of the d2q9 model and some other commonly used models of the lb method are summarized. based on the hydrodynamic and general boundary conditions, a new joint boundary condition is presented, it integrates advantage of the two conditions above and obtains very good results in dealing with all kinds of boundaries of flow fields
為了消化和吸收近年來lb方法在理論和應用方面的新成果，探索在水力計算方面的新途徑以促進lb方法實用化的發展，本文進行了下列研究工作：綜述了lb方法在理論研究和實際應用方面的新進展，以及d2q9模型的推導過程和其他一些常用的模型；在水動力邊界條件和通用邊界條件的基礎上提出了一種新的聯合邊界條件方法，它綜合了上述兩種邊界條件的優點，在流場的各種邊界處理中取得了非常好的效果，經過模塊化的處理以後這種邊界條件具有更好的實用性；針對均勻網格的lb方法計算效率較低的不足，提出了雙重網格的latticeboltzmann方法，通過二維poiseulle流動、后臺階流動和渠道方槽流動三個算例的模擬，證明這種方法能夠明顯地提高流場模擬的計算效率；此外，根據復雜區域流場的特徵提出了latticeboltzmann方法的分塊-耦合演算法，利用lb方法的計算特性實現塊與塊之間的數據交換，充分利用計算資源提高計算效率，通過對「 t 」型、 「十」型和「 x 」型分岔管道流場的模擬，展示了這種演算法的特徵和優點，以及它所具有的應用前景。 -
With the acceleration of economic globlization, the purchasing globlization of automobile parts is becoming the necessitous trend of automobile manufacture industry. from accessing to the wto in 2001, chinese automobile industry had been brought into the international distribution rapidly. chinese motor spare parts enterprises meet new development opportunity. meanwhile, following the canceled and weaken of tariff and non - tariff wall, the motor ' s parts market boundary between domestic and international is very weak. the domestic enterprises are forced to take part in the international competition
2001年中國加入wto以後，中國汽車工業已被迅速地納入國際分工體系之中，中國境內的汽車零部件企業迎來了新的發展機遇；另一方面，隨著各種關稅和非關稅壁壘的減弱和消失，汽車零部件的國內、國際市場界限已非常的模糊，中國境內的汽車零部件企業將被迫參與國際競爭。 -
It also roundly researched the solution of the helmholtz equation in the circumrotating ellipsoidal coordinates, and discussed how to calculate the solution of the electro - magnetic field in the circumrotating ellipsoidal coordinates using special functions, and researched circumrotating ellipsoidal cavity ’ s latent value and quality parameter using arithmetic simulation, finally we compared the ellipsoidal cavity with the spheriform cavity. the main content of this thesis are as following : 1. calculated the distribution of the electro - magnetic field inside the ellipsoidal cavity based on maxwell equations and boundary conditions, and confirmed the syntonic mode inside the ellipsoidal cavity using arithmetic methods
本文從maxwell方程及其邊界條件求解出橢球腔內的電磁場分佈，較為全面的研究了旋轉橢球坐標系下赫姆霍茲方程的解的問題，討論了用特殊函數來求解旋轉橢球坐標系下電磁場的解，並通過數值模擬研究了旋轉橢球諧振腔的本徵值和品質因數，並和球形諧振腔做了比較，主要內容為: 1 .用maxwell方程及其邊界條件求解出橢球腔內的電磁場分佈，並且分析了橢球腔內的諧振模式。 -
Part three, some questions on judicial judgment of robbery : firstly, examines boundary between crime of robbery and non - crime in the following aspects : action purpose. action cause, action circumstance, action consequences ; secondly, analyses systematically difference between crime of robbery and. the concerned crime ; thirdly, discusses deep going the stipulation of 263 article of criminal code which is about transforming robbery ; at last, elaborates crime with aggravated circumstance as well as crime with aggravated consequences of robbery
第三部分，搶劫罪的司法認定的若干問題：首先從行為目的、行為起因、行為情節與危害程度等方面考察了搶劫罪與非罪的界限；其次系統分析了本罪與相關罪的區別；再次深入分析了刑法第269條關于轉化型搶劫罪的規定；最後詳細論述了搶劫罪的情節加重犯和結果加重犯問題。 -
Study achievement appears as following aspects : ( 1 ) yellow river estuary gate river flow and tide flow mixed area is not keep standing deposition status, on special income water and sediment conditions, boundary conditions and oceanic power conditions, this area may on the scour status ; ( 2 ) observed from estuary sediment deposition distributing process : delta and sea offing area sediment deposition vary trend is similar, each part sediment deposition scale varies as wave shape ; ( 3 ) on estuary gate, affect the sediment deposition factors, primary factors are tide prop, the gate widens gradually, estuary gate have branches, brine induced flocculation. this paper study the estuary gate widen, estuary gate have branches to affect the river channel deposition in quantity ; ( 4 ) based on field measured data, for the first time, deduce the estuary sediment deposition and distributing regress formula which can estimate estuary different areas sediment deposition volume ; ( 5 ) this subject demonstrate the estuary delta coastline dynamic balance conception, build the relationship between the estuary income sediment with deposition land area, draw the following important conclusion : when estuary years - averaged income sediment keeps at 345 million tons, the delta coastline may on the dynamic balance status. ( 6 ) this subject firstly brings up estuary sediment optimized control conception, and has the primary study on the macroscopically optimized control conception method
研究認為： （ 1 ）黃河河口口門逕流潮汐區域並非持續保持淤積狀態，在特定的來水來沙、邊界條件和海洋動力條件下，該區域可以處于沖刷狀態； （ 2 ）從河口泥沙沉積分配的過程來看：三角洲與濱海區泥沙的沉積變化趨勢是基本一致的，各部位的泥沙沉積比例變化基本呈波動狀態，且三角洲與濱海區泥沙的沉積比例與來沙量密切相關，基本成正比關系； （ 3 ）在口門處，影響泥沙沉淤的因素主要集中在潮汐頂托、口門逐漸加寬、河口門分汊、鹽水造成絮凝等，本報告主要對口門加寬，口門西妥理工大學工程碩士專業學位論文分漢對河道淤積的影響進行了定量分析: （一扣根據實測資料首次建立了河贖流路泥沙沉積分配的回歸計算式，據此可以預估計算河口不同區域泥沙的沉淤量; 、 5 ）本項研究首次論證了河口三角洲岸線動態平衡的概念，並建立了黃河河口來沙量與造陸面積的相關關系，得出了當河口多年平均來沙量維持在3 . 45億t時其河口三角洲岸線則可能處于動態平衡狀態的重要結論; 『 6 ）本項研究首次提出了河口泥沙優化調控的概念，並對其宏觀優化調控模式進行了初步探討。 -
Apply to crowd : eye ailment patients such as teen - agers myopia, farsightedness, astigmatism, amblyopia, strabismus ; above applying to binoculus especially have boundary 50, the optical parallax, or bare eye sight is lower than 0. 5 following nearsighted patient
適用人群：青少年近視、遠視、散光、弱視、斜視等眼病患者；尤其適用於雙眼有50度以上視差，或裸眼視力低於0 . 5以下的近視患者。 -
The main results and academic contributions of the dissertation can be summarized as following : 1 ) for the difficulty to obtain the accurate analytical solution of the stress constraints around 3d cracks, detailed 3d fe analyses have been conducted to study the out - of - plane constraint factor tz around a straight through - thickness crack, a quarter - elliptical corner crack and a semi - elliptical crack embedded in an isotropic elastic plate subjected to uniform remote tension loading. the distributions of tz are minutely studied in the forward section of the cracks. strong 3d zones ( tz > 0 ) along the crack front were investigated despite the far field stress - free boundary conditions
全文主要研究內容和學術貢獻如下: 1 .針對一般三維裂紋端部場應力約束準確解析的困難，對均勻拉伸載荷作用下各向同性彈性板中穿透厚度中心直裂紋、半橢圓表面裂紋和1 / 4橢圓角裂紋進行了大量詳細的全場應力三維有限元分析，首次全面分析了非穿透裂紋端部場三維影響區范圍，給出了不同形狀三維裂紋前沿離面應力約束因子tz的數值解，並結合k場平面解給出了非穿透裂紋端部應力場k - tz雙參數描述。 -
In this paper, our work begins with the classification of indefinite information presented in the first chapter and these classes include randomicity, fuzziness, non - partitionality, incomparability, incompleteness and unreliability. and the corresponding theories and methods of studying these information are simply described. then the following chapter of this paper discusses the approximate processing of rough boundary region - sort of problem of non - partitionality
本文第一章從不確定問題的定性描述出發，將不確定性信息分為了隨機性不確定性信息、模糊性不確定信息、不可區分性不確定信息、不可比較性不確定性信息、不完全性不確定性信息和不可靠性不確定信息，並對各種不確定信息的產生和處理方法進行了簡單的概述。 -
Similarly, the corresponding existence result is founded for the following boundary value problem on time scales by using the induction principle of duality on time scales
主要工具是時間尺度上的歸納原理類似地獲得了邊值問題的解的存在性定理證明工具是時間尺度上的歸納原理的對偶命題 -
At the same time, dispersion of different stokes number particles influenced by the ordered large - scale turbulent structures of the carrier gas phase was investigated. and the following " conclusion was drawn : particles of mediate stokes number mainly concentrated in the outer boundary region of large scale eddies, and they had the nignest dispersion rate ; particles or little stakes number mainly lay in the core region of the eddies, and they had the lest dispersion rate ; though particles of large stokes number distributed throughout the eddy structures
同時還模擬研究了不同stokes數顆粒在二維流場旋渦擬序結構作用下的運動擴散特性，詳細描述了不同stokes數顆粒在流場中的空間分佈規律，認為：中等stokes數顆粒集中於流場旋渦的外沿區域，在流場空間中的擴散率最高；小stokes數顆粒集中於流場系列旋渦的渦核區域，在流場空間中的擴散率最低；而大stokes數顆粒則遍佈於流場旋渦渦核和渦外沿區域。 -
Following the completion of the improvement works, the entire lo wu cross - boundary footbridge will be enclosed with glazing and cladding and widened by seven metres
羅湖跨境人行橋改善工程完成後，整條橋會裝上玻璃幕墻，橋身亦會擴闊七米。 -
However, because the meshless methods are relatively new, there exist the following technical problems : 1. complexity in algorithms for computing the interpolation functions ; 2. difficulties in the implementation of essential boundary conditions ; 3
本學位論文針對目前無單元發展中存在的主要技術問題：形函數計算；本質邊界條件實現；影響域大小（包含其中的點數）的確定；輔助積分網格等問題進行了研究。 -
We organize it along the following lines : in chapter 1 we discuss the fixed boundary problem with elliptic equation or elliptic equations ( diffraction problem ) system
具體內容由以下三章組成：第一章我們討論的是具有固定邊界的橢圓型方程問題和橢圓型方程組問題（即繞射問題） 。 -
The paper researches the transient time precision and the following problem of the results developing with time for 2 - d high order blocking and matched method, at the same time, anlysing the stability of high order methods including boundary conditions. the results show that the domain decomposition and matched method using high order method can follow the time developing solution of taylor problem well, the computation result of the flow over a single or two tandem arranging circular cylinder agree the experiment and others " results well, moreover, the panting results of lift and drag coefficient are better than others
本文利用高精度分塊耦合求解方法，對其瞬態時間精度和非定常時間發展解的跟隨性問題進行了研究，同時也對包含邊界條件的線法高精度格式的穩定性也作了分析，研究結果表明高精度的分塊耦合求解方法可以很好地跟隨taylor問題的時間發展解，與單圓柱繞流和雙圓柱繞流的實驗結果比較以及他人結果比較符合很好，對升阻力系數在渦脫落時的脈動問題的結果優於他人結果。 -
In the third chapter, we will study the existence and uniqueness of the classical global solution and generalized global solution to the periodic boundary value problem and the cauchy problem for this kind of equation. in the second chapter, we study the following nonlinear wave equation of higher order : with the initial boundary value conditions or with where a1, a2, a3 > 0 are constants, ( s ), f ( s0, s1, s2 s3, s4 ) are given nonlin - ear functions, u0 ( x ) and, u1 ( x ) are given initial functions. for this purpose, by green ' s function of a boundary value problem for a fourth order ordinary differential equation we first reduce the problem ( 1 ) - ( 3 ) to an equivalent intergral equation, then making use of the contraction mapping principle we prove the existence and uniqueness of the local classical solution for the intergral equation
本文分三章，第一章為引言；第二章研究一類非線性高階波動方程的初邊值問題的整體古典解的存在性和唯一性，以及古典解的爆破；第三章研究此方程的周期邊界問題和cauchy問題的整體廣義解和整體古典解的存在性和唯一性，具體情況如下：在第二章中，我們研究一類非線性高階波動方程的如下初邊值問題：或或其中a _ 1 ， a _ 2 ， a _ 3 0為常數， （ s ） ， （ s _ 0 ， s _ 1 ， s _ 2 ， s _ 3 ， s _ 4 ， ）為已知的非線性函數， u _ 0 （ x ） ， u _ 1 ， （ x ）為已知的初始函數，為此，我們先用四階常微分方程邊值問題的green函數把上述問題轉化為等價的積分方程，然後利用壓縮映射原理證明此積分方程局部古典解的存在性和唯一性，又用解的延拓法證明上述問題整體古典解的存在性和唯一性，主要結果有：定理1設u _ 0 （ x ） ， u _ 1 （ x ） c ~ 4 [ 0 ， 1 ]且滿足邊界條件（ 2 ） ，若以下條件滿足：其中a ， b月0為常數， w -
As an effective numerical analysis method of scientific and engineering problems developed following finite element method ( fem ), boundary element method ( bem ) has some attractive advantages, such as easier simulating complex boundary shape, high accuracy and dimension reduction
邊界元法是在有限元法之後發展起來的一種精確高效的工程與科學問題的數值分析方法，具有便於模擬復雜邊界形狀、求解精度高、降維等優點。 -
This paper is divided into throe sections. in section l. we study the existence of positive solutions of the following sigular equation for second order boundary value problem
本文共分三節，主要討論抽象空間中奇異微分方程，脈沖微分-積分方程，定義在無窮區間上的微分、積分方程的解的存在性。 -
Compared with other general cfd software, the numerical modeling software of combustion process improved by the author of this paper has following features : ( 1 ) it can adjust the corresponding parameters and manipulating methods according to furnace architecture, operational parameters and fuels etc. ; ( 2 ) it can arrange the nodes of grid flexibly and also make special calculation to certain nodes, which cannot be accomplished by the general commercial software ; ( 3 ) in the boundary ( water - cooled wall ) condition processing, the third boundary condition is selected for the temperature calculating, linking the combustion process inside the furnace with the flow and heat exchange of water inside the water - cooled wall, so the heat absorbing and the influence of the water - cooled wall to combustion process and heat transfer of furnace are explicitly explained
與其它通用的cfd軟體相比，經論文作者所改進的燃燒過程數值模擬軟體的特點在於： （ 1 ）能夠結合爐子結構、運行參數及燃料等，調整模型中相應的參數及處理方法； （ 2 ）可以靈活的安排網格節點，對某些節點進行特殊處理； （ 3 ）在邊界（水冷壁）條件的處理上，溫度選用了第三類邊界條件，把爐內燃燒過程和水冷壁內工質的流動和換熱聯系了起來，使得水冷壁內的吸熱情況對爐內的燃燒和結渣的影響充分體現出來。 -
The region of a corn seed is located by boundary following and seed filling and saved as a new image file. 3
用邊界跟蹤法定位圖像中一粒玉米種子邊界，用種子填充法計算玉米種子在圖像中的區域，保存該區域，用於下一步處理。 -
Thirdly, in the detecting of the feature dots in the images, the technique gaining laser strip skeleton images is developed, and it includes image thinning, boundary following and dealing with thinning image lastly
在圖像特徵點檢測中，開發了包括圖像細化、邊界跟蹤、細化后處理三個模塊的激光條骨架圖像獲取方法。
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