ddm 中文意思是什麼

The primary purpose of this paper is that gives a particular explanation of the work principle and construction technique for the dynamic consolidation method and ddm. it also provides the evaluating schemes for foundation consolidation. so we can get some useful methods for foundation consolidation in civil engineering

文章的最終研究目標是詳細說明強夯法和深層攪拌樁加固技術的工作機理及施工工藝方法，並提出相應的地基加固評價選用方法，從而為工程建設中進行地基處理提供方法和依據。

The novel three - dimensional finite - difference approximations of mur ' s absorbing boundary conditions are also presented in frequency - domain. then the ddm based on fdfd is investigated in the applications of three - dimensional electromagnetics problems. and it is used to analyze the leaky wave antenna based on image nonradiative dielectric ( nrd ) guide

最後，闡述了maxwell方程組和劃分區域的despres傳輸條件的頻域差分格式建立，在截斷邊界上構造了三維頻域mur條件的差分近似，探討了基於頻域有限差分的區域分解法在三維電磁問題中的應用實現，並將該演算法用於分析一種基於nrd波導結構的漏波天線。

Ddm use region info to describe the supply and demand relation among simulation entities. confirm the aggregate which entities are interested in by region matching. therefore region matching is the basic of data filtering. this paper discusses detailedly the complexity of region matching process from the point of view of the pure arithmetic and develops a rapid matching arithmetic according to the characteristic of region in ieee1516

Ddm使用區域信息描述實體間的數據供求關系，通過區域匹配確定實體的感興趣集合，因此區域匹配是實現數據過濾的基礎，區域信息匹配計算的復雜度是影響過濾開銷的一個關鍵因素。文中從純演算法的角度對區域匹配過程的復雜度作了詳細的分析，並以ieee1516標準為基礎，結合其中區域的特點，提出了一種單維步進的區域匹配演算法。

The inauguration ceremony marked a new page in the history of ddm, and gave the general public a deeper understanding of ddm ' s vision

法鼓山開山落成大典，為法鼓山紀元開創新的一頁，也讓社會大眾對法鼓山的理念有更深一層的認識。

Because the existing data model can ’ t work perfectly with given application, this paper brings forward domain data model ( ddm ). ddm ’ s structure is more fit for given applied field. it helps us to design and develop mis easily and it can solve the problem of data access control on applied layer

本文針對現有的數據模型與具體的應用結合不緊密的特點，提出了構造更貼近具體應用領域的域數據模型，用於幫助mis的設計和開發，解決mis開發過程中，應用層面的數據訪問控制的難題。

Overlapping, nonoverlapping and overrelaxation ddm are discussed. electromagnetic ( em ) scattering by electrically large open - ended cavities is analyzed by ddm / fem - bie

討論了重疊ddm 、非重疊ddm和超鬆弛ddm的迭代過程及其在eb一fem中的應用。

The second, third and fourth chapter, introduce three main enterprise valuation approaches and methods : dcf ( discounted cash flow ) method, market multiplier method and adjusting the book value of the financial statements. these chapters are also the predominant part of this thesis. the fifth chapter focuses on the comparison research on the different valuation methods, sets forth the advantages and disadvantages of each method, at the same time, introduces rim, eva and ddm valuation methods

本文共分五部分：第一部分介紹企業價值概念；第二、三、四部分分別介紹了現金流量折現法、市場比較評估法、調整賬面價值法三種企業價值評估方法，並對每種方法的關鍵理論問題做出了闡述；第五部分對這些評估方法進行了比較研究，分析了各方法的優點和不足，提出了各方法的適用范圍，並簡要介紹了rim 、 eva和ddm三種國外較新的價值評估方法。

On the base of mathematical domain decomposition method ( ddm ), this paper investigates systematically the quasi - static problems based on laplace equation, the transmission problems in waveguide based helmholtz equation and the three - dimensional scattering and radiation problems based on maxwell equations. the theoretical system is built for the further exploration of ddm in electromagnetic problems

本文在區域分解法已有的數學基礎上，從基於laplace方程的準靜態問題，到基於helmholtz方程的波導傳輸問題以及基於maxwell方程的三維散射輻射問題，系統地探討了該方法在電磁領域中的應用，為進一步擴展應用研究建立了理論體系。

The fft of laplace equation on the regular domain is studied. as the application, combined with ddm, the fast algorithm is used to compute characteristic impedance of rectangular coaxial line

另外，研究了規則區域上laplace方程的fft快速演算法，作為應用，結合區域分解法分析了準tem傳輸線。

And then a hybrid technique combining ddm with eb - fem, po, and ptd is given for the analysis of electromagnetic scattering by electrically large bodies with deep cavities

在此基礎上，將ddm與eb一fem 、物理光學法、物理繞射理論相結合，分析了帶有深腔的電大尺寸三維導體目標的電磁散射特性。

The work involves : 1 based on the analysis of previous ddm schemes, considering source - based, destination - based, intermediate filtering mechanism, this paper gives clearly reason and excellence of selecting light - weight mode architecture ; 2 the paper displays light - weight ddm scheme in details, including the relationship of ddm service with other services and object attributes, relevant element designment and algorithm designment ; the paper analyses information flow in light - weight ddm scheme, dividing all implementing classes of ieee 1516 interface specification, showing ddm federate process and explaining how to use " infantry division landing island joint warfare simulation system " to test all ddm implementation algorithms

這主要包括： 1 、在綜合分析ddm所有實現方式的基礎上，包括基於agent 、網格和區域等實現方法，結合源端、中介端、目的端過濾機制，首次提出了ddm弱服務器模式體系結構； 2 、論文首次給出ddm弱服務器模式方案的具體設計，包括ddm與聲明服務、對象服務、所有權服務、時間服務及與對象屬性的關系，相關基礎設計和詳細演算法設計等。 3 、最後，論文給出了弱服務器實現模式的信息流向，分析了ieee1516介面規范實現時用到的所有實現類，以及符合ieee1516規范的ddm成員流程，論述了利用「 xxx作戰」模擬工程綜合測試數據分發管理的過程。

Design and implement common functins of a concrete tool system : ddm ( dynamic data management )

設計實現一種電信網管工具：動態數據管理的公共功能模塊。

Secondly, the physical nature of divergence of iterative ddm based on the schwarz alternating method in treating waveguide problems is given in this paper. also an absorbing fictitious boundary condition ( fbc ) is presented to generate an iterative ddm for waveguide problems

其次，針對helmholtz方程微分運算元的系數矩陣非正定，基於schwarz交替法的迭代區域分解法，在分析波導問題時迭代不收斂的困難，探討了產生這一問題的物理本質。

Moreover. the simulation systems must be easily scalable. that is to say, the consuming of computing and communicating resources will not affect the simulation systems " running as the expanding of the systems " scale. in rti, ddm is specially designed to filter data. ddm tranmits the data according to the supply and demand relation among simulation entities. lt can largely reduce data traffic, and reduce the spending on data processing at the same time

復雜大系統的模擬通常是建立在網路環境上的，並且要求系統在規模上有良好的可擴縮性，即隨著系統規模的增加，計算和通信的開銷不會影響模擬系統的正常運行。而rti中的數據分發管理ddm就是專門為實現數據過濾而設計的。

At present, there is still a great deal of problem in the application of the secure model of the distributed database. under common circumstance, the secure usually is self - contradict with vivid in the database, while customer wanting to get stronger and vivid capability, needing the sacrifice to the database secure in some extent, vice versa. based on distributed database system and secure characteristic, this text analyzed its database safe strategy and related secure model, the system appearance and operate rule, the system appearance and operate rule, studied the customer role management, safe strategy and the role authorition problem, specially emphatically studied the bell. lapadula model. ( including its basic concept, system appearance, related operation and the secure rule gather ). according to the actual application environment, this text carried bell. lapadula model to entity to turn, through a research discover that model adoption compulsory secure strategy, attain a vivid secure control not easily, so increase the secure strategy of the independent access control mechanism to carry on " flabby " to the original model, and relatedly increased rule, put forward a new kind of secure mechanism - ddm ( the distributed database discretionary mandatory ). turn the rule principle according to the ddm secure mechanism and entity, designed a secure controller of database - dds ( the distributed database secure distribute ) controller adopted ddm secure mechanism, and established the secure control mechanism of the dds secure controller

拉帕丟拉模型進行實體化，通過研究發現該模型採用強制性安全策略，不易做到靈活的安全控制，因此添加自主存取控制機制的安全策略對原模型進行「鬆弛」 ，並相應的增加了規則，提出一種新的安全機制? ? ddm （ distributeddatabasediscretionaryandmandatory ，分散式數據庫自主與強制性）安全機制。基於實體化規則原理，設計了一個採用ddm安全機制的數據庫控制器? ? dds （ distributeddatabasesecure ，分散式數據庫安全）控制器，並設置了dds安全控制器的安全控制機制。通過dds安全控制器在實踐中的應用，本文分析了dds安全控制器的各項功能和安全特點，設計了實際應用中dds控制器的管理方案，實現了分散式數據庫安全控制。

Investigation on electromagnetic scattering of a cavity by the ddm fem method

方法研究開口腔體電磁散射特性

Based on domain decomposition method ( ddm ), a hybrid technique is presented for the analyses of electromagnetic scattering by electrically large bodies with deep cavities. it can alleviate the problem of memory units when applying fem alone to such objects

採用基於區域分解技術的fem用o一ptd方法，分析了帶有深腔的三維電大尺寸導體目標的電磁散射特性，克服了單純的fem / po一ptd方法分析帶有電尺寸較大的深腔目標時，計算機內存無法滿足要求的缺點。

To do this, ddm uses configurable probes to gather information across multiple servers

在服務器上，現在由新的名為rnrmgr的demino任務來實現空間/資源事件處理。

It sets forth relevant conceptions of ddm in ieee 1516 interface specification, including dimension, range, region, update region set and subscription region set. then it divides data filtering mechanism into four steps, consisting of region declaring, region matching, link establishing and data transmitting. and it displays the essence of ddm by researching on ddm ' s formalization, comparison about previous specification, algorithm computational complexity and np - completeness

這包括：敘述了ieee1516規范中數據分發管理的相關概念，即：維、區間、區域、更新區域集和訂購區域集；接著劃分了數據分發管理實現的基本步驟，包括：區域聲明、區域匹配、建立連接和數據傳輸等；最後通過形式化描述、與先前規范的比較、演算法復雜度和np完全性的研究，深刻地揭示出數據分發管理的本質。

Ddm data display monitor

數據顯示監視器