曲線生成 的英文怎麼說

中文拼音 [qūxiànshēngchéng]
曲線生成 英文
curve generation
  • 曲 : 曲名詞1 （一種韻文形式） qu a type of verse for singing which emerged in the southern song and ji...
  • 線 : 名詞1 （用絲、棉、金屬等製成的細長的東西） thread; string; wire 2 [數學] （一個點任意移動所構成的...
  • 生 : Ⅰ動詞1 （生育; 生殖） give birth to; bear 2 （出生） be born 3 （生長） grow 4 （生存; 活） live;...
  • 成 : Ⅰ動詞1 （完成; 成功） accomplish; succeed 2 （成為; 變為） become; turn into 3 （成全） help comp...
  • 曲線 : [數學] curve; bight; bought; profile; net曲線板 french curve; irregular curve; curve board; splin...
  • 生成 : create; generate; produce生成演算法 generating algorithm; 生成文法 generating grammar; 生成物 pro...
  1. And it can be divided into four phases of urban tourism of china, in which there are different characteristics. ( 2 ) the evolutive rules of urban tourism of china are as follows : 1 ) the exoteric extent of tourism notion is more and more swell ; 2 ) the form of urban tourism renovate with the development of cities ; 3 ) the layout of urban tourism inner and outer is from close and complanate to exoteric and tridimensional ; 4 ) the sustaining system of urban tourism is from absent to as clear as a bell, and will reach a rational and advanced extent. 5 ) the social delamination of urban tourism is form stern to syncretic ; 6 ) the evolvement tendency of urban tourism should be generalized as a curve of accumbent " s ", which present a course makes up of low - grade development, high - speed development and balanced development

    主要觀點歸納如下： （ 1 ）城市旅遊是基於城市的發展而發展的，中國城市旅遊可分為古代、近代、現代和后現代四個階段，分別對應於前工業文明時期的城市旅遊、工業文明萌芽時期的城市旅遊、全面建設工業文明和后工業文明因素初露端倪時期的城市旅遊，以及邁向信息時代的城市旅遊，其間體現出不同的城市旅遊發展特徵； （ 2 ）經歷不同發展的時期，中國城市旅遊表現出如下的演進規律： 1 ）城市旅遊觀念開放程度逐漸增強，對城市旅遊的容納度日趨加大，對城市旅遊地位的認識從忽視到關注再成為生活的必要因素； 2 ）旅遊形式從單一走向多元，新的旅遊形式隨城市發展層出不窮； 3 ）城市旅遊的內外部空間聯系從封閉平面走向開放立體，達到網路化、連綿化、分區化、立體化布局； 4 ）城市旅遊支持系統從缺失走向健全，達到理性高端； 5 ）城市旅遊社會分層從森嚴走向融合，經歷了「小眾旅遊」 、 「大眾旅遊」 ，最終發展到「全民旅遊」 ； 6 ）城市旅遊產業演變態勢可以概括為一條橫臥的「 s 」曲線，表現為低開?高走?平穩發展。
  2. This paper put forward the optimized methods include reconstructing the characteristic curve by reasonable use of the adjust tools and analyse tools of the modeling software, admeasuring the automotive model surface correctly, simulating the breaking surface and creating the surface in the right turns which is good for modeling a smooth and exactitude surface. at last, after the correct analysis of the factors which are effect to the surface construction, a smooth and exactitude surface of the similar diamond concept car has been constructed by using the right optimize method

    本文通過合理利用反求軟體中的造型工具和分析工具，正確劃分反求模型的造型區域，使用正確的曲面造型方法，對反求曲面的特徵網格線進行二次優化，並對突變曲面進行擬合再生成處理及建立合理的曲面生成順序等方法，最終獲得了仿型度和光順度都很高的反求曲面。
  3. In this article i do a lot of analysis for the data formed in the mobile samples with the basis of the research of data mining, mainly including : it analyses and summarizes the theory and technology of data, especially the further discussion of the data mining algorithm for time sequential. it introduces the course of the test curve of the power transmission system of electric mobile and discusses the technology and methods of pretreatment for curve data. it studies and develops the antitype system for the analyses of test curve data of the power transmission system of electric mobile with the mining and analysis of test curve data of the power transmission system of electric mobile and the basis of the algorithm of time sequential

    本文以目前數據挖掘的研究為基礎，對汽車樣品試驗中形成的大量數據進行分析處理，主要研究內容包括:分析和綜述了數據挖掘理論基礎和相關技術，特別是對時間序列挖掘演算法進行了深入的討論介紹了電動汽車動力傳動系統檢測曲線生成的基本過程，討論了曲線數據的預處理技術與方法以時間序列挖掘演算法為基礎，對電動汽車動力傳動系統檢測曲線數據進行了挖掘與分析，研究並開發了電動汽車動力傳動系統檢測曲線數據分析原型系統。
  4. And understanding and studying the spectral features and variation rules of geo - targets in the experimental area, raising that it is the basis of geo - targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo - targets, realizing that in a great extent spectral - integrated - form - based classification method can remove the phenomenon of " different spectrum with same objects " resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo - target with similar spectral forms and much different values of whole reflection ratio. it is suggested that " red edge " range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel - based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. the remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed

    研究結果如下：首先針對荒漠化地區的地物特徵，對高光譜數據不同波段的數據質量、波段組合進行了評價，提出了適用於荒漠化監測的基本波段選擇集；初步了解和掌握了研究地區的地物光譜特性及變異規律，進一步明確了掌握地物光譜特徵和變異規律是用成像光譜儀數據提取地物信息的基礎；發現了基於光譜整體形狀的分類方法在很大程度上能夠消除由於傳感器、地物目標觀測方向之間的角度變化引起的反射率曲線整體平移的「同物異譜」現象，對于譜形相似而整體反射率的值相差較大的兩類地物，通過引入均值和方差圖像參與分類得到解決；研究還表明在植被「紅邊」范圍內的波段是進行荒漠化監測的主要特徵波段，這些波段與植被生物量和蓋度都有密切的關系，是開展精細植被分類研究和植被定量反演的重要基礎；像元的導數光譜分析可以消除土壤背景的影響，是進行植被生物量和蓋度定量反演的有力工具；建立了荒漠化監測主要評價因子的定量反演模型，並分析了模型的適用性。
  5. Since pixel - level contrapose pixel coordinate, trigonometric function must be used to translate polar coordinates to pixel coordinate when the curve is described by polar coordinate. so research is very little on algorithms for generating this sort of curve by now

    由於逐點是針對象素坐標系而言，而對極坐標系下描述的曲線，在轉換到象素坐標系時要用到三角函數運算，因此目前很少提到對極坐標曲線生成演算法的研究。
  6. Finally, a method is put forward to construct the nurbs curves on sphere, which extends the de boor recursive algorithm in r3 to one on the sphere by replacing the geodesic distances for the lines and studies their many geometric properties analogous to those in euclidean spaces, such as the differential property, the local property, the parameter invariance under a projective transformation, and so on

    兩種方法均給出誤差估計，使逼近螺線可達到任何預先給定的精確階。最後，給出球面nurbs曲線生成演算法：用球面上測地線? ?劣大圓弧代替直線段，將歐氏空間r ~ 3中的deboor遞推演算法推廣到球面上構造麯線。
  7. Another algorithm is based on pixels : sample many points along the curve, round them to the nearest integer and set each pixel the computed point falls in. although this algorithm uses integer arithmetic, it provides the smooth curve possible at the expense of computation time as many points have to be computed to ensure that no gaps are created along the curve. furthermore these two algorithms we mentioned above is appropriate for low degree parametric curves, for high degree parametric curves, we usually approach them by using low degree rational parametric curves, the generating curve ' s fairness property is not very good

    我們知道當節點矢量的兩端節點均為k重節點且無內節點時， b樣條基函數退化為bemstein多項式，因此該生成演算法還可推廣到b能ier曲線中，具有廣泛的應用價值、同樣地，在cad和cagd中，有理b樣條曲線，特別是非均勻有理b樣條曲線（ nurbs ）已經成為曲線曲面設計中最廣為流行的技術，然而對這些曲線目前也尚無很好的曲線生成演算法，因此有理b樣條曲線的生成演算法無疑有著更重要的意義
  8. The method takes advantage of bezier curve to work out a set of blade profiles of centrifugal pump, using thickening law to thicken the profiles. then the pressure and suction lines of the blade can be obtained. it takes advantage of bezier surface to create pressure and suction surface and makes use of mdt software to create the three - dimensional blade entity

    首先採用速度系數法計算得到離心泵葉輪的基本參數，再由b zier曲線生成一組葉輪葉片型線，按照加厚原理對型線進行加厚，得到正背葉片線，再採用張量積b zier曲面生成葉片正背面，由mdt進行三維實體造型得到葉片，從而得到流場計算區域的模型。
  9. But all designed software before in our country still have some weakness, for example, the conventional type of cam counld be projected by these software is very little, and used approximation by lines to curves of cam which have bigger error and more nodal points that result in chattering of principal axis. in furthermore, this software of designing cam in fact only has the function of cad. if you want to simulate and work over the designed cam in that software, you will find that you have to export it to other cad / cam system software ( e

    隨著數控加工在我國的深入開展，真正實現我國的凸輪cad cam就顯得非常必要，但以往的凸輪設計軟體還存在許多不足，如可設計的凸輪類型較少，大多集中於平面凸輪；且採用誤差較大、節點數過密的直線逼近法生成凸輪工作曲線，造成計算時間長，且加工中產生較大振動；同時這些凸輪設計軟體基本上只具有cad功能，如果想將設計好的凸輪進行模擬和加工，就必須將圖形輸出到其它通用cad cam軟體（如mastercam等）中，因此這些軟體在實際應用中總不盡人意。
  10. In the traditional way, the servo valve static characteristics tests are done by the signal generator and the x - y recorder

    傳統的靜態性能試驗通過信號發生器產生測試信號， x - y記錄儀繪特性曲線完成。
  11. As an application of the algorithm and the properties, some examples are given

    作為對曲線生成演算法和性質以及插值方法的應用，最後給出了一些圖形實例。
  12. The paper expounds the algorithms of generating quadratic curve. using quadratic curve and cubic bezier curve enforces the smooth of curves

    論文闡述了幾種二次曲線生成演算法；說明如何應用二次曲線和三次bezier曲線擬合改善曲線的光滑性。
  13. The thesis also explains how to design the function models, ( such as communication model, curve building model and control arithmetic model etc. ) in the software of the controller. the method of corresponding these models was also illuminated

    闡述了adcm控制器的軟體設計；闡述了各個功能模塊（如通訊模塊、曲線生成模塊、控制演算法模塊等）的實現及它們之間協調工作的方法。
  14. Paper [ 76 ] provides a integer algorithm for rasterizing free curves, we need change the curve form to implicit function form, then use curve ' s positive - negative property to draw, but we ca n ' t use this algorithm when curve ' s degree is higher than 3 and this algorithm ca n ' t avoid using multiplication ; paper [ 77 ] provides a new generating algorithm, this algorithm can draw bezier very well, but for b - spline curve, we need use convert them into bernstein base form. because this process spends a lot of time, this algorithm has not a good speed and effect for rendering rational b - spline curve

    現在經常採用的演算法也是基於幾何的演算法（即線式生成演算法）和基於像素的演算法（點式生成演算法） ;文獻78 ]提供了一種有理參數曲線的快速逐點生成演算法，該演算法對有理b吮ier曲線的繪制，能起到很好的作用，但是對于有理b樣條曲線，必須先通過多項式的代數基與bemstein基間的變換矩陣，把原式用bemstein基表示，這一過程由於計算量大，降低了曲線生成的速度和效率
  15. The second is that the upper computer receives the data sending by the communication software to realize the intelligent detection of net structure. the functions include the displaying of the channels of the data acquisition, the displaying of the curve of the acquiring data, the online and offline data analysis, the saving of acquiring data file, the data file management of hard disk and the configuration file ; the third is that it realizes the time analysis, fft and hilbert by intermixing visual c + + 6. 0 with matlab, which has the strong ability with data analysis, signal processing and graphic displaying, data processing and plenty of tools boxes. it implements these functions including fft and hilbert w ithout using matlab again in the environment of visual c + + 6. 0

    上位機監測軟體功能包括通道數據實時顯示、數據實時曲線生成並顯示、實時數據分析、離線數據分析、數據文件保存、磁盤數據文件管理及配置文件管理； （ 3 ）使用visualc + + 6 . 0語言作監測系統的實時數據分析的軟體設計，並結合matlab的強大的數值分析、矩陣運算、信號處理和圖形顯示功能及其強大的數據處理能力和豐富的工具箱使數據分析工具，脫離matlab環境，實現visualc + + 6 . 0和matlab混和編程，實現採集的數據實時以及離線時域分析、傅立葉分析和小波分析。
  16. This microstructure stimulates the piezoelectricity thin film rocking bar using the oscillating circuit to have the vibration, rocking bar impetus slide around translational motion, simultaneously tows the crank to have the rotary motion

    該微結構?用振蕩電?激發起壓電薄膜搖桿生成振動，搖桿帶動?塊前後直線移動，同時牽引曲柄生成旋轉運動。
  17. In the second chapter, a class of polynomial blending functions of degree n + 1 is presented. based on the functions, we present polynomial curves with some shape parameters. the generated curves are similar with the degree n bezier curves

    第二章給出一類n + 1次多項式調配函數，並由此構造了帶形狀參數的多項式曲線，生成曲線具有與n次b zier曲線類似的幾何性質。
  18. Just in order to change the puzzle and passive situation mentioned above, we are devoted to the applied research of the generation of subdivision surfaces that can interpolate multiple given curves and possess sharp features, and its application in the field of surface modeling and surface design. this paper summarizes our theoretical research results and algorithms that have high actual practicable values

    正是為了改變這種困惑與被動的局面，本文作者致力於能插值一系列給定曲線並產生尖銳特徵的細分曲面生成原理及其在曲面造型設計中的應用性研究，取得了富有實際應用價值的理論成果及演算法，本文就是這一研究的總結。
  19. The content includes real - time velocity variation, motor position control, velocity filtering and smoothing, etc. the real - time velocity modulation is mainly about how to choose certain acceleration curve according to exterior instruction

    本論文詳細分析了基於線性加減速演算法的nc指令生成及解釋，包括實時調速、電機定位、速度濾波、平滑等。實時調速主要是根據外部指令選擇一定的加速曲線完成動作。
  20. A method for complicated planar contour fitting is presented : 1 ) first all the data points used in the contour are ordered ; 2 ) after calculating the curvature of each contour point, the points with bigger curvature are taken as feature points ; 3 ) the contour is segmented by feature points ; 4 ) the contour is globally constructed through determining the segments types ( line or circle ) and the constraints with the neighbor segments ? the generation of skin surface is realized with the interface of caa

    研究了基於點雲數據的復雜截面線生成技術： 1 ）對輪廓數據點進行排序； 2 ）近似計算輪廓數據點處的曲率，取出曲率較大的數據點，並定義取出的數據點為特徵點； 3 ）以特徵點為分界點對輪廓數據點進行分段： 4 ）判斷分段數據點確定的曲線類型和各分段曲線之間的約束關系，進行基於約束的分段平面輪廓曲線整體擬合。
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