fractal modeling 中文意思是什麼
fractal modeling
解釋
碎片造型-
By making some assumptions, collision frequency were presented. then the the flocculation kinetics model was established through population balance equation. comparison of experimental data and modeling results indicate that there are the same trend between the two. so the model can predict floes number and size during flocculation of yellow river ' s loess particles without using empirical parameters. the tem and sem were used to obsever floes in the study of floe structure. the flocculation was divided as flocculi, floc and floe aggregate. the floes structure model was established by assumption that particles position in floe accords with tetrahedron. the fractal dimension of model and experimental floes was found to be coincidentso the model can reflect the structure of flocs formed in flocculation of yellow river ' s loess particles by macromolecule flocculant at a certain extent
最後，本文還對絮凝動力學和絮體結構進行了研究，在前人研究的基礎上，針對高分子絮凝黃河泥沙，對絮凝過程作了一些符合試驗條件的假設，建立了顆粒碰撞頻率表達式，應用了顆粒數量平衡方程，從而建立了絮凝過程的動力學生長模型，模型計算結果與試驗數據對比表明，二者趨勢一致，在沒有使用經驗參數的情況下基本上能夠描述黃河泥沙絮凝過程中絮體數量和尺寸分佈的變化過程；對絮體結構的研究中，應用掃描電子顯微鏡和透射電子顯微鏡對絮體進行了觀察，將絮體分為絮粒、絮團和絮網三個不同的生長階段，通過假設顆粒結合位置符西安建築科技大學博士學位論文合正四面體，建立了絮體結構模型，計算得到的模型絮體分形維數基本與試驗中的實際絮體相符，在一定程度上能夠反映高分子絮凝黃河泥沙生成的絮體結構。 -
The algorithm of construction of a fractal interpolation surface patch based on rectangular patch is presented in the modeling, the construction algorithms of osteons and volkmann canals are designed, and the distribution of volkmann canals, the size and structure of osteons can be regulated and controlled according to different area, so it can satisfy the needs of the internal microstructure model
在建模中，提出了矩形平面片生成分形插值曲面片的演算法，完成了骨單位、浮克曼管的構造演算法，並實現了根據不同區域對浮克曼管的分佈、骨單位的大小、結構等特徵進行靈活調控，以滿足內部微細結構模型的要求。 -
Taking the jiaodong gold ore deposit cluster for example, based on geological analysis, modern fractal theory, mathematics geology, modeling experiment and computer simulation, a through study on ore source system was made
以膠東金礦集中區礦源系統為例，運用現代分形理論、數學地質和模擬實驗等方法，探索礦質來源和富集過程。 -
The vector - graph modeling method of dem and the fractal - construct method of terrain model are discussed
介紹了基於矢量圖的dem建模技術及地形分形構造演算法的應用。 -
Main works : fractal and mechanism of forming fractal of fault surface in rock masses is analyzed and examined with it ' s affect on failure process of mining rock masses ; fractal curves are constructed with matlab to simulate the fault surface. similar material modeling is carried out and the fractal weak - face effect of mining rock masses is studied. mechanics character of rock masses with fractal fault in mining condition is simulated with large finite element software an sys ; catastrophe model of fault activated by mining is constructed with catastrophe theory
主要工作有：檢測和分析了巖體斷層面的分形性和斷層面分形的形成機制及其對采動巖體破壞的影響機理；運用matlab構造了分形曲線來模擬分形斷層面，進行了相似材料模擬實驗，研究了采動巖體的分形弱面效應；採用大型有限元軟體ansys模擬了含有分形斷層面的巖體在采動條件下的力學性態；運用突變理論建立了采動斷層活化的突變模型。 -
I apply the modified double - iterated modeling algorithm to realize the three - dimension tree model successfully based on l - system with ips. to realize the terrain model, i expound the improved diamond - square algorithm in light of fractal interpolation and use it to model cloud, two - dimension texture terrain surface and three - dimension terrain
基於l系統以及迭代函數系統的特性提出了改進的三維樹木模型雙迭代生成演算法來實現三維樹木模型的模擬，而在三維地貌模型的模擬中，提出了改進的基於分形插值的diamond - square演算法實現了雲團、二維紋理地表、三維地形等模型。 -
Fractal character of fault surface is studied and analyzed with fractal theory n catastrophe theory and similar material modeling fem numerical simulation. at the same time the effect of fault surface on the failure regularity of rock masses is discussed. stress - strain distribution regularity of rock masses with different fractal fault in mining condition is analyzed
本文運用分形、突變理論及相似材料模擬實驗、有限元數值計算等手段，研究、分析了斷層面的分形特徵，探討了斷層面的存在對于巖體移動規律的影響，分析了含有不同分形維數斷層面的煤巖體在采動條件下的應力應變分佈規律。 -
Application of fractal geometry in 3d - tree modeling
分形幾何在三維樹木建模中的應用 -
In this article we discuss the methods of 3d tree modeling by iteration function system ( ifs ) and l system based on the fractal. at the same time, we compare the two methods from the application of tree modeling in 3d cis and give the class definition of tree object from the object oriented point of view, in order that the tree object can be applied in 3d gis. all this research find a new and effective way for the visualization of tree in 3d gis
同時，針對樹木實體在3dgis中的應用，對兩種建模方法進行比較，確定l系統是3dgis中構建樹木實體的最佳方法，並從面向對象角度出發，給出基於l系統的樹木實體類，從而使樹木實體作為3dgis中的對象之一融合到系統之中，為3dgis領域中關于樹木實體的表達尋找到一條新的而且是更有效的解決途徑。 -
The popularity of fractal markets is proved after demonstrations on three disparate financial time series. 2 estimating the nonlinear cointegration function is the key issue in nonlinear cointegration research. wavelet neural network is introduced into the nonlinear cointegration modeling, and the modeling method is presented
2 、非線性協整函數的估計是非線性協整研究中的核心問題，論文將小波神經網路引入非線性協整建模研究之中，利用小波神經網路給出了非線性協整建模方法。 -
This thesis studies modeling and the simple application of the fractal approximation of curves and surfaces
本文研究曲線曲面分形逼近的數學模型及其簡單應用。 -
The tree modeling is based - on fractal iterated. the algorithm can simulate different kinds of trees and provides a method of leaf simulation that is named plant shape construction
自然界中許多植物的整體和局部具有很強的自相似性，而且這些植物特徵復雜，很難通過傳統的建模方法進行繪制。 -
Review on modeling of hydraulic conductivity with fractal theory
水力傳導度空間變異性的分形模擬研究進展 -
In chapter 1, we describe the basic concepts and primary characteristics of virtual reality system and point out that fractal modeling is a kind of promising key technology
本文第一章簡單介紹了虛擬現實的基本概念、重要特點以及虛擬現實系統的分類和應用領域，指出了分形建模是一種有前途的關鍵技術。 -
As a mathematic tool of modeling natural geometry, fractal theory has been found wide applications in varied fields with great success
分形理論作為一種描述客觀世界的幾何工具，在短短的時間內已成功應用於許多學科。
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