離散點集 的英文怎麼說

中文拼音 [lísǎndiǎnjí]
離散點集 英文
discrete point set
  • 離 : Ⅰ動詞1 （離開） leave; part from; be away from; separate 2 （背離） go against 3 （缺少） dispens...
  • 散 : 散動詞1. （由聚集而分離） break up; disperse 2. （散布） distribute; disseminate; give out 3. （排除） dispel; let out
  • 點 : Ⅰ名詞1 （液體的小滴） drop （of liquid） 2 （細小的痕跡） spot; dot; speck 3 （漢字的筆畫「、」）...
  • 集 : gatherassemblecollect
  • 離散 : dispersed; scattered about; separated from one another; spread; debunching; straggling; fringing;...
  1. Based on the demand of power department, a full distributed multifuncitional monitoring device is studied. this instrument not only can measure the data of hydroelectric plant, but also integrate the funcition of control the dynamotor, by cooperate with the program of epigynous system, it can realization the auto generate electricity on the hydroelectric plant and ordinal startup - stop of the dynamotor. 2 furthermore, performance of integrated dft arithmetic enhances the acturacy and reliability of measure. by communication several devices can run online to be controlled dispersedly and managed centrally

    本文分析了國內外水電站自動控制裝置的研究和發展狀況，尤其是國內小型水電站的自動化現狀，針對現有電力部門的需求，設計並實現了一種單元式的微機自動監控裝置，該裝置不僅實現了對水電站內各種模擬參數和數字信號的實時監測功能，還對水輪發電機組進行了調控，通過與上位機處理程序的配合，可以實現水電站的自動發電控制、機組順序啟停；在測量發電機組機端電壓和電流參數的時候，採用32點離散傅立葉演算法（ dft ） ，增加了測量的準確性和可靠性；通過通訊可以實現裝置的聯網運行，做到「分散控制、集中管理」 。
  2. Some answers to a question on discrete point set extremum

    一種離散點集極值問題的幾個結果
  3. Secondly, based on nurbs curves approximation algorithm, a nurbs surface approximation algorithm on discrete data sets is given. thirdly, a shape - preserving parametric surface interpolation to data set is given

    2基於所給的nurbs曲線的逼近演算法，建立了帶插值條件的離散點集的nurbs曲面的逼近演算法。
  4. The nurbs curves and surfaces approximation to constrained data sets is discussed in this dissertation. the major works are as follows : firstly, based on simulated annealing algorithm and least square principle, a nurbs curves approximation algorithm to constrained discrete data sets is presented

    本文討論了帶約束的離散點集的nurbs曲線、曲面的逼近問題，主要工作如下： 1基於模擬退火演算法和最小二乘法，給出了帶插值條件的離散點集的nurbs曲線逼近的演算法。
  5. The different scheduling characteristics of three production types - continuous production, discrete production and mixed production are first described, a solution is proposed that uses buffer to adjust the characteristics of mixed production, and a scheduling model that combines mrp and opt is presented according to the production requirement of fuda co. in chapter three, the production order ( similar to mps ), mrp and crp in the scheduling are discussed in detail

    第二章是混合型生產計劃調度特點，首先分析了三種類型生產過程（離散型、連續型和混合型）的特點，進而討論了混合型生產計劃調度的特殊要求，提出在混合型生產過程中利用緩沖區來實現離散型生產和連續型生產的平穩過渡。在此基礎上結合富達公司的實際生產情況提出了集成mrp和opt思想的混合型生產控制模型。
  6. Quick locating algorithm for turning points in discrete point set of plane curve

    平面曲線離散點集拐點的快速查找演算法
  7. In this paper, data acquisition and processing method is introduced, surface fitting and error estimation methods based on special scattered data is put forward

    本文介紹了三維坐標數據的採集和數據處理方法，提出了基於空間離散點坐標進行二次曲面擬合及其誤差評定的方法。
  8. The method of boundary finds the sort of discrete points

    應用本文提出的邊界排序法實現離散點集的排序工作。
  9. In addition, for regular grid data it presents an effective algorithm for some particularity that there are four isopoints in one grid cell and for random discrete data points it lays emphasis on triangulation. this paper firstly put forward three principles : attribute principle of adjoining isolines, attribute principle of isoregions and inclusion principle of ioslines after studying the character of isolines. the bivalue - topology algorithm based on boundary tracking is given, which is founded on the three principle and is used to fill isoregions

    另外，在這兩部分中除了對邊信息鏈表的形成過程以及基於邊信息鏈表的等值線生成做了詳細討論外，還對規則格網數據的等值線追蹤中，一個網格單元上含四個等值點的特殊情形給出了一個比較有效的演算法，並在任意離散點數據部分對平面點集的三角剖分進行了著重討論。
  10. For quantitative analysis of the combat platform fire application, the markov chain model of combat platform with reciprocal striking, hasty break through and shooting to dense target is studied by setting up markov chain which state and time are discrete according to the markov property in this process

    摘要針對定量分析戰斗平臺火力運用問題，根據該過程所具有的馬爾可夫性特點，將其描述為狀態離散、時間離散的馬爾可夫鏈，由此研究了一對一格鬥、倉促突破戰斗、對密集目標群射擊等情況下的馬爾可夫鏈模型。
  11. The engendering source of traffic volumes and their general influential factors have been presented, and the situation of nowadays highway transportation has been discussed. according to the introduction of traffic distribution theory and classical assignment method, analysis of traffic flow path selection among cities and that of special influential factors for traffic flow on toll highways, initial analysis to the forming mechanism of traffic volume on road sections has been made, and a probability model for path selection has been set up with the maximum - utility theory and disaggregating model. detailed analysis to impedances on road sections and their functions ( especially to three main composing factors of the impedances as cost of time, transport and toll and to the functional relations with traffic loads ) was made, at the same time, the relative cost calculating model was set up on the basis of the state - of - art achievements in both international and national researches

    主要研究內容包括：交通量的產生根源及一般影響因素分析和當前公路運輸地位討論；從交通分配理論及經典配流方法著手，通過分析城市間交通流路徑選擇行為和收費公路路段交通量特殊影響因素，初步提出路段交通量的形成機理，並採用效用極大原理和非集結模型理論（ disaggregationmodel ） ，建立用戶出行路徑選擇概率模型；對路段阻抗及路阻函數（尤其對行程時間費用、車輛營運費用和道路收費這三個構成路段阻抗的主要因素及其與交通負荷間的函數關系）進行較為詳盡的分析，並以現階段國內外較為先進的研究成果為依據建立相應的成本測算模型，其中，特別提出了兩種確定客貨車輛時間價值的分析方法；離散分析法和時間-費率轉換法，後者是在目前基礎調查、統計數據資料不夠齊全的現實下提出的一種確定道路系統內務車型時間價值的較為實用的新方法；對我國公路收費政策的背景和理論、實踐依據及費率的各種影響因素進行重點分析；從數學的角度證明合理費率的存在性，並以最優化理論為基礎，建立在普通收費公路和擁擠路段交通調控型收費公路兩種模式下合理費率的計算模型等。
  12. Firstly, influence factors of generalization of neural network are presented in this thesis, in order to improve neural network ’ s generalization ability and dynamic knowledge acquirement adaptive ability, a structure auto - adaptive neural network new model based on genetic algorithm is proposed to optimize structure parameter of nn including hidden layer nodes, training epochs, initial weights, and so on ; secondly, through establishing integrating neural network and introducing data fusion technique, the integrality and precision of acquired knowledge is greatly improved. then aiming at the incompleteness and uncertainty problem consisting in the process of knowledge acquirement, knowledge acquirement method based on rough sets is explored to fulfill the rule extraction for intelligent diagnosis expert system, by completing missing value data and eliminating unnecessary attributes, discretization of continuous attribute, reducing redundancy, extracting rules in this thesis. finally, rough sets theory and neural network are combined to form rnn ( rough neural network ) model for acquiring knowledge, in which rough sets theory is employed to carry out some preprocessing and neural network is acted as one role of dynamic knowledge acquirement, and rnn can improve the speed and quality of knowledge acquirement greatly

    本文首先討論了影響神經網路的泛化能力的因素，提出了一種新的結構自適應神經網路學習演算法，在新方法中，採用了遺傳演算法對神經網路的結構參數（隱層節點數、訓練精度、初始權值）進行優化，大大提高了神經網路的泛化能力和知識動態獲取自適應能力;其次，構造集成神經網路，引入數據融合演算法，實現了基於集成神經網路的融合診斷，有效地提高了知識獲取的全面性、完善性及精度;然後，針對知識獲取過程中所存在的不確定性、不完備性等問題，探討了運用粗糙集理論的知識獲取方法，通過缺損數據補齊、連續數據的離散、沖突消除、冗餘信息約簡、知識規則抽取等一系列的演算法實現了智能診斷的知識規則獲取;最後，將粗糙集理論與神經網路相結合，研究了粗糙集-神經網路的知識獲取方法。
  13. Now the method of lever set is wildly used like crystal grows, etc. this paper mainly explains the application in the moving interface aspect of the method, which based on fast tree redistancing for moving interface, including definition of level set method, adaptive mesh ( octatree ) and interpolation of scattering points

    水平集方法現已得到廣泛的應用，如晶體增長等。本論文主要闡述了水平集方法在求等距問題方面的應用，即一種基於樹形結構的快速等距面計算方法，包括水平集方法的定義，自適應網格剖分（本論文採用八叉樹的方法）以及離散點的插值。
  14. This method connects the discrete points processed in the level set method to form a smooth curve, thus transforms the discrete problem to continuous one. constraint entry is added to the curve according to the actual demand, and satisfactory result is obtained in experiments. the results show that the algorithm is effective in the actual applications

    基於鏈碼的水平集方法把原先水平集方法中處理的離散點，利用鏈碼易於表示曲線的特點，連接成一條光滑的曲線，這樣就把離散問題轉化為連續問題，利用曲線的連續性和光滑性，根據實際問題的需要，對曲線加入外部約束項控制，在實驗中獲得了滿意的結果，在實際應用中達到了預期的效果。
  15. Curves and surfaces fitting to constrained data sets is an indispensable problem in cad / cam, which is also a common topic in industry design and manufacture

    帶約束的離散點集的曲線、曲面擬合是cad cam中的基本問題之一，也是工業設計和製造中經常遇到的問題。
  16. Secondly, according to convex geometric characteristics, a common - perpendicular - line algorithm is developed for the distance between the convex nurbs surfaces by making surfaces discrete, approximating the distance by one between convex hulls of discrete surfaces and solving a linear programming problem to get their vertical projective length on common perpendicular direction, that is, the original distance

    然後，針對凸曲面的幾何特徵，給出了nurbs凸曲面間距離求解的公垂線法和切平面法。公垂線法是把曲面間的距離求解問題轉化成曲面的離散點生成的凸殼間的距離，再歸之為兩凸殼在其公垂線上投影集合間的距離，由此抽象成一個線性規劃問題，估算出近點對。
  17. It presents the angle of the two normal vectors formed by the new and the old triangles, the threshold distance and the principle of maximal - minimal angle in the paper to constrain the growing of the triangles, so as to reduce the searching area, improve the correctness and confirm the quality of the mesh

    該方法通過引入三角形法向量夾角、閾值距離以及最小內角等幾個參數對三角形的生長進行約束，同時利用生長法，對空間中的離散點集進行逐步三角劃分，直至所有三角形擴展完畢。
  18. The main research works of the dissertation are as follows : 1 ) preprocessing technology of unorganized diserete points : the relative research works were focused on two issues : boundary extracting from unorganized discrete points and generating of original surface, boundary extracting were realized on the basis of rules that disctete points are on the form of triangular mesh and the number of neighbor triangle of border points and inner points are different

    論文的主要研究內容如下： 1 ）離散數據點集的預處理技術研究了離散數據點的邊界檢測和初始曲面擬合問題。離散數據點的邊界檢測是根據有限元分析所得到的三角網格離散點，利用它的特點，使用離散點的相鄰三角網格的個數判斷是否是邊界點。
  19. After the formation of the first triangle, use the growing method to extend the 3 edges of each triangle until all the triangles have been finished

    在三維重構階段，本文針對映射法的缺點，提出了一種對空間離散點集進行直接三角剖分的方法。
  20. Surface reconstruction which plays an important role in re usually acquires coordinate data from discrete points ( point clouds ) which lie on the surfaces of the geometry entity and reconstructs surfaces by some algorithms to express the geometry entity

    作為逆向工程重要分支的曲面重塑技術，通常是通過採集實體表面離散點集（點雲）的坐標數據，利用一定的演算法策略重塑出該點雲所表達的幾何實體的技術。
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