割平面法 的英文怎麼說
中文拼音 [gēpíngmiànfǎ]
割平面法
英文
cutting plane algorithm-
We put forward an algorithm for self - discrimination of island relation and an automatic intersected method of the region machining unit, which can judge the relationship among any plane obturate contour line effectively and swiftly. we also study the tool path generation technology of two - dimensional machining, basso - relievo machining, three - dimensional lifting - pen machining. meanwhile, we put forward an optimize approach of tool path, which improve the efficiency of engraving
研究了圖像的刀具路徑生成技術與軌跡規劃問題,提出了基於射線的島嶼關系自動判斷和區域加工單元的自動分割方法,有效、快速地判斷了平面任意封閉輪廓線之間的關系,研究了平面任意區域填充加工、浮雕加工、三維提筆加工的刀具路徑生成的技術,提出了刀具路徑優化方法,提高了雕刻加工的質量和效率。First the sketch / datum plane is fitted by least - square distance, then the extruded direction or axis with the flank points of the cloud is extracted in quadratic paogramming arithmetic, and certain points projected to gain 2d sketched datas. feature points are defined to segment the sketch datas, and the sketch profile is generated by fitting separately the line and circle segment
使用最小二乘方法擬合草圖基準平面,採用二次規劃方法提取拉伸方向和旋轉軸線,然後將數據點投影以獲取草圖數據,通過柵格劃分提取草圖邊界輪廓數據,再對這些邊界數據進行基於特徵點的分割,以直線和圓弧段擬合出草圖輪廓。Is that if a set of points in n - space is cut by a hyperplane, then the application of the perceptron training algorithm will eventually result in a weight distribution that defines a tlu whose hyperplane makes the wanted cut
)下的結論是,如果n維空間的點集被超平面切割,那麼感知器的培訓演算法的應用將會最終導致權系數的分配,從而定義了一個tlu ,它的超平面會進行需要的分割。Three frequently used nc engraving strategies, i. e. planar profile machining, nest cutting and contour parallel machining are studied. and the corresponding tool path generation functions are implemented
在此基礎上,研究實現了平面輪廓切割、嵌套切割、環切加工刀具軌跡的規劃與生成演算法。The azeotropic distillation of the system acetic acid - water - azeotropic agent ( isopropyl acetate and butyl acetate ) is simulated. due to the non - ideal behavior, nrtl - hoc and uniquac - hoc model is used to depict vapor - liquid phase equilibrium behavior of this system. concerning the liquid in the decanter, the stability is checked by tangent plane stability analysis, and the initialization of phase splitting calculation is produced. a good estimate of the phase fration is gotten by successive substitution with newton ' s method, and every component of two phase is gotten by mass equilibrium equation. finally, the solution of this equation is produced with successive substitution calcultion. the naphtali - sandholm method is used to simulation of azeotropic distillation. by virtue of this combined calculation method, the simulation is begun with operational data as basical data. the results of simulation accord with the operating data, which proved that the combined calculation method is credible
該體系具有高度非理想性,氣液相平衡模型採用nrtl - hoc和uniquac - hoc模型,採用切平面判據法對進入分層器中的液相進行液相穩定性測試,提供液液相分離計算的初值,再結合牛頓拉夫森迭代法運算求得相分割系數,根據物料衡算求出各相組成,循環迭代可求得分層各組分數據,共沸精餾模擬計算採用那夫塔列-山德荷姆全變量迭代演算法。As an application of succeeding, a numerical example of max - cut is given. 3. several semidefinite relaxation detection strategies of the cdma maximum likelihood multiuser detection are investigated. rounding, coordinate descent, cutting plane and branch and bound based on quadratic programming algorithm are presented to get the suboptirnal solution
本文紿出了基於半定規劃模型尋求多用戶檢測問題次優解的幾種重要方法,包括隨機擾動法、坐標下降法、半定規劃的割平面法和二次規劃的分枝定界法等French company known for 25 years as the specialist in softwares applied to the cutting of flat materials, we are european leader in the publishing of cad / cam application software for sheet metal manufacturing, cutting and robotics
作為一家對于平面材料切割方面有著25年的專家經驗的法國軟體公司,開發的cad / cam應用軟體適用於鈑金加工,切割及機器人加工技術,在歐洲一直占據主導地位。The first one is based on the offset surface of subdivision model. through mapping the original mesh node by node, the offset surface is generated. it can get the interference free tool - path directly from the offset surface without complex interference check and process
然後實現了兩種精加工刀具軌跡生成方法,一種是基於等距面的截平面法,通過點對點法向映射的方法生成遞歸分割曲面模型法向等距面,由該等距面生成無干涉刀具軌跡。The characteristic parameters of effective debris in a ferrograph have been calculated in the present thesis, like area, perimeter, aspect ratio and granularity, in which some methods have been adopted such as smoothing, filtering and thresholding and so on, according to tribological theories and computer technologies and digital image preprocessing
本論文基於摩擦學原理和計算機技術,通過對鐵譜片進行數字化圖像預處理,採用對譜片圖像的平滑、濾波以及閾值二值分割等方法,計算出譜片中特徵磨粒的一些特徵參量,如面積、周長、粒度以及縱橫比等。The two edges were formed in apple seed shape to give a strong support during blade contacts, while the edges near the tip area transformed smoothly into flat grind to give supreme sharpness to the delicate cuts that characterized chinese swordsmanship
而靠近劍尖處的鋒口則流暢地轉化成更為鋒利的平面式開鋒,讓中國劍法里著名的點和割等小巧切割動作得以全面發揮。This paper consists of three parts as follows, 1. a nonsmooth convex programming is relaxed to a smooth convex programming by using a cutting - plane, which is constructed by subgradient. an algorithm based on the cutting - plane is presented. in this way, a cutting plane algorithm and it ' s convergence for semide ? nite programming are provided
利用次微分的概念給出了一種非光滑凸規劃割平面的構造技巧,找到了半定規劃可行域的一個支撐超平面,從而給出了求解半定規劃的一種割平面演算法A strength relaxation of semidefinite programming for standard quadratic optimization problems is given. the relaxation is transformed to a semi - indefinite programming. a linear programming cutting plane algorithm is proposed
3 .給出標準二次優化問題的一個強化半定規劃鬆弛模型,把該模型轉化為半不定的線性規劃問題,並提出線性規劃的一種新的割平面演算法解該問題,理論和數值實驗證明了演算法的有效性Using bresenham algorithm determines the clipping trace to obtain all intersects, by which all clipping planes and cross - section are drawn
利用bresenham演算法,確定裁剪路徑,確定相交平面的交線,實現任意平面對三維速度模型體切割。This thesis discusses the problem free - surface modeling technique of turbine blade according to the property of the runner blade and the present research achievement in free - surface modeling technique, the major study concerned are introduced below : firstly, it accomplished the study of intersection for blade - to - plane and present the method of three - step algorithms such as subdivision > iterative refinements approach ; meanwhile it solved the problem of small area extend of blade by use minimal modulus method
本文針對水輪機葉片的特點,結合曲面造型技術的研究現狀,研究了水輪機葉片的nurbs曲線曲面造型問題。主要工作有:第一,完成了葉片與任意平面求交問題的研究,提出分割-迭代-擬合三步求交演算法。同時首次應用最小二乘擬合端部法解決了葉片的小區域延展問題。The outcome suggest that, firstly, the change of light transmission with the continuous change of parameters is periodic ; secondly, as far as the degree of effect is concerned, the light transmission of air - spaced prisms is much more sensitive to the change of the parameters than that of the glue spaced ones ; thirdly, as to the prisms glued with the same dielectric, the effect of prisms whose optical axis parallels to the glued layer is intense than those whose optical axis parallels to the plane determines by the normal of incident face and that of the cut face
研究認為,激光偏光棱鏡的光強透射比隨各參量的連續變化都呈現出一定的周期性;各參量對空氣隙型偏光棱鏡的影響要比對膠合型棱鏡的影響大的多;同種介質膠合的棱鏡,各參量對光軸平行於切割斜面的設計類型比光軸平行於切割面的法線和入射端面的法線所組成的平面的設計類型的影響要大。Such integra ting feature vector is used for building k dim e nsion gaussian m odel, whose param e ters are estim ated by an expectation - m a xi m i zation ( em ) algorithm, and then the resulting block - cluster m e mberships provide a segm entation of th e im age. after segm ented, a m e thod of param e ter - trimm e d average for describing re gion is proposed, of which the param e ter is decided by area and position of region dire ctly. the sim ilarity m easure between two im ages is defined by integrating properties of all regions in the im age
文中先將圖像分成4 4小塊,各塊的顏色、紋理、位置特徵構成8維的特徵空間;在該空間中對得到的8維特徵矢量建立一個k維高斯模型,應用期望最大em演算法估計模型參數,產生的塊特徵-聚類隸屬度函數實現對圖像的分割;為減小分割演算法不確定性對檢索效果的不良影響,對得到的區域採用參數均衡平均特徵表示,其中參數的確定直接與區域的面積、位置有關。A cut - plane algorithm for semidefinite programming and its application
半定規劃的割平面演算法及其應用Working zones of cutting tools - couple tool - material - part 8 : couple tool - material methodology in drilling on plain
切割工具的工作帶.雙工具材料.第8部分:在平面上鉆孔的雙工具材料方法學A selective method of cutting plane in resolving i lp
解整數線性規劃中選擇割平面的一個方法A numerical example for cutting plane solution to investment combined model
投資組合模型的割平面解法的數值算例分享友人