次數曲線 的英文怎麼說

中文拼音 [cìshǔqūxiàn]
次數曲線 英文
frequency curve
  • 次 : Ⅰ名詞1 （次序; 等第） order; sequence 2 [書面語] （出外遠行時停留的處所） stopping place on a jou...
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 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...
  • 次數 : number of times; frequency
  • 曲線 : [數學] curve; bight; bought; profile; net曲線板 french curve; irregular curve; curve board; splin...
  1. They not only inherit the advantages of bezier curves and b - spline curves, also can be used to represent straight lines precisely and some remarkable transcendental curves precisely, such as circular arc, ellipse, cardioids and twisted pair line etc. especially, the uniform t - b - spline curve of three degrees is smoother than b - spline curve and c - b - spline curve of the same order

    此外由於它們還具有三角函數的優點，故既可以精確表示直線段、二次多項式曲線段又可以精確表示圓弧、橢圓弧等二次曲線以及心臟線、雙紐線等超越曲線。特別地， 3次均勻t - b樣條曲線曲面比同階均勻b樣條（ c - b樣條）曲線曲面具有更高的光滑度。
  2. This paper, which aims at the developing strategy of express service, researching and analyzing chinese and foreign express corporations current situation, forecasts the demand of chinese express market in fifteen years with conic section model on the base of statistics

    本文立足於快遞業的發展戰略，調查並分析了中外快遞公司在中國發展的現狀，根據實際的快遞業務數據，利用二次曲線預測模型方法對未來15年內的快遞市場需求量進行預測。
  3. Based on field research and the dynamic analysis of remote sensing data of different time ( 1987 tm, 1996 tm and 2000 china - brazil earth resource satellite ccd ), using multi - information of research area ( including data of geology, geography, hydrology, meteorology, economy, human culture and dem ) and existing research results, the dissertation discusses drive factors of desertification and the relationships between drive factors and desertification with the help of gis tool and some mathematical methods such as probability, statistics, curvilinear estimation, logical analysis and analytic hierarchy process

    論文在對研究區土地荒漠化現狀野外調研和不同時相（ 1987tm 、 1996tm和2000ccd ）遙感圖像土地荒漠化信息提取和演變分析的基礎上，結合研究區已有的多元信息基礎資料及研究成果（包括地質、地理、多時期的水文氣象、經濟、人文以及dem數據等） ，運用gis強大的空間分析功能和概率統計、曲線估計、邏輯分析、主成分分析、層次分析等數學方法綜合研究了土地荒漠化與各驅動因子之間的相關關系，揭示了研究區土地荒漠化的主要驅動因素，探討了荒漠化動態演化規律。
  4. Speed cumulative frequency curve

    速率累加次數曲線
  5. Presents a new method for fairing of curves which has a small flexibility based on fitting the derivative of second order of curves. we fit the derivative of second order of curves by a polynomial fitting, then find an indefinite integral of this polynomial to get a approach of curves. otherwise, we discuss the analyze of the error and the optimize of fairing to this arithmetic

    提出了一種針對小撓度曲線的逆向曲線光順演算法，該演算法直接擬合曲線型值點列的二階導數曲線，然後通過兩次積分來反求出光順后的曲線，並對該演算法的誤差分析、效果分析、光順優化等問題進行了深入探討。
  6. The program includes the infrasonic signal data acquisition of three channels, 3 - d dynamic spectrum analysis, correlation analysis of 3 channel infrasonic signals, the calculation of wave direction, the wave speed, the spectrum analysis at any length and a real - time infrasonic gravity wave pressure - time ( p - t ) curve

    本程序支持3路次聲波傳感器信號的數據採集、動態譜分析及次聲信號的相關分析、能計算波源的方位角、波速以及任意時間段的譜分析，並實時給出次聲重力波的壓力?時間曲線（即p ? t曲線） 。
  7. G ) the convertion of si 1126 data into ktva input data file : ktva ' s values, definition, unit and format are tested many times. h ) the result of simulation computation is visualized and analyzed, i ) the study on sll 126 parameters ; by altering the ajustment data, their performance changes are studied

    本文首次應用kiva模擬平臺，對s11126柴油機進行了模擬；通過主要參數（噴油量、轉速、噴嘴安裝高度等）的改變，分別計算出多項主要性能指標曲線和圖形，並對其進行分析，從而總結出以上參數的改變對性能的影響，驗證了kiva模擬平臺的強大功能。
  8. In order to increase the shooting times and shooting effects and on the analysis of the human soccer tape extraordinary technology, this paper introduce cosine curve into the goal line of robot

    為提高足球機器人在比賽中的射門次數，以及射門效率，在分析了人類足球中盤帶過人等技術的基礎上，引入餘弦曲線作為機器人射門路線。
  9. If the geometric hermite data is from a smooth function with the arc - length parametric, the cubic ph approximates the smooth function, the error in the approximation of a short segment of length h is found

    如果此三次ph曲線插值于以弧長為參數的某一函數曲線，則可以給出三次ph曲線逼近該一小段曲線的逼近誤差。
  10. In order to verify the feasibility of ann, adopting same training sample the author establishes quadratic curve model and index model of tourism foreign exchange income and cubic curve model and index model of total inbound tourist quantity

    為了驗證人工神經網路模型的可行性，筆者用同樣的訓練樣本分別建立了旅遊外匯收入二次曲線模型、指數曲線模型和入境遊客三次曲線模型、指數曲線模型。
  11. As a result of the require of cagd in airplane, automobile shipping and electrical appliance etc, fairing of curves and surfaces has become the hot subject in all over the world. this paper presents a new method for fairing of curves based on fitting the derivative of second order of curves. several practicality examples has been given to show the advantage of this arithmetic

    本文針對目前曲線光順演算法存在的問題，提出了一種採用最小二乘法來擬合曲線型值點列的二階導數曲線，然後通過兩次積分來反求光順曲線思想的曲線光順演算法，並給出了實際的算例來說明本文演算法的優越性。
  12. Firstly explicit algorithm is found that give the unique cubic ph that solves a geometric hermite interpolation problem

    首先本文給出了三次ph曲線g ~ 1hermite插值問題的演算法，這個演算法是用復數形式表示的，使插值公式比較簡單。
  13. Based on the compound poly - power function cam profiler design method of optimum cam profile was investigated. cam time profile of the original tbd604b diesel was analyzed and the cam profile was designed again by use of the method mentioned in this paper. performance testing improved and higher power output tbd604b diesel was satisfactory

    本文以復合高次方凸輪型線為基礎，探討了凸輪型線的優化設計方法，對tbd604b柴油機原機的配氣凸輪進行分析了解了tbd604b柴油機配氣凸輪的升程函數為高次方曲線，且經優化，在允許的最大正加速度條件下，豐滿系數已達最大值。
  14. 3. by using the techniques of an explicit criterion to determine the number of real roots of a univariate polynomial in ( [ 13 ], [ 73 ] ) ; b - net form of bivariate splines function ; discriminant sequence of polynomial ( cf. [ 13 ], [ 73 ] ) and the number of sign changes in the sequence of coefficients of the highest degree terms of sturm sequence, this paper determines the number of real intersection points two piecewise algebraic curves whose common points are finite. a lower bound of the number of real intersection points is obtained in terms of method of rotation degree of vector field

    大連理工大學博士論義：分片代數價線i片代數簇的若十m穴3 ：利用楊路，張景中，侯曉榮在文獻v13 ， 73 ）中關於一元多項式實根的顯式判準，以及二元樣條函數的b網形式，多項式的判別序列和sturm序列的最高次數項系數序列的變號數，本文給出了兩個分片代數曲線的丈交點數（假設公共點是有限的）的計算公式。
  15. Finally, some methods of digital processing techniques, such as polynomial curve fitting and exponential curve fitting and subsection curve fitting, are used firstly to compensate the performance of the detector. the measurement accuracy of the reader is improved, with the validity proved

    首次運用了多項式曲線擬合技術、指數曲線擬合技術以及採用分段擬合的技術，補償檢波器的性能，提高了通信系統的測量精度，應用效果顯著。
  16. In this paper the g2 - continuous blending conditions of two algebraic curves implicitly defined based on the construction of algebraic curves that interpolate the geometric constraints are presented

    本文在對插值一類幾何約束的隱式代數曲線的構造基礎上，給出了這樣的隱式三次代數曲線二階幾何連續光滑拼接的條件，並給出了實驗結果。
  17. Second, combining with the construction principle of geometry - goppa codes, we present a kind of new algebraic - geometry code by using the properties of algebraic curves on finite fields. we determine the value of the code - length n and d imension k, and the lower bound of the minimal distances of the new algebraic - geometry code. the new algebraic - geometry code have the following characteristics : ( l ) the new code is the generalization of geometry - goppa codes and the algebraic - geometry code constructed by chaoping xing and san ling in 2000 ( 2 ) compared with brouwer ' table of the best known codes, we find more new codes, there are at least 60 new codes under two - dimension cases

    其次，結合幾何goppa碼的構造原理，利用有限域上代數曲線的特點來構造代數幾何碼，確定了新的代數幾何碼的碼長n和維數k的取值，給出了最小距離d的下限，這類碼的特點是： （ 1 ）新的代數幾何碼是幾何goppa碼和新加坡國立大學chaopingxing和sanling在2000年所構造的代數幾何碼的推廣； （ 2 ）這類碼中有許多種碼的參數優于brouwer碼表，僅二維情形時，就有60多種碼優于brouwer碼表。
  18. 5. experimental study on start - up, steady work and performance of mpt were completed first time in china. the performance curves of mpt were obtained and the influence of parameters such as microwave power, gas flux, etc. on performance was studied

    在國內首次進行了mpt真空環境啟動、穩定工作特性和性能實驗，測取了mpt的性能參數曲線，研究了微波功率、工質氣體流量等參數對mpt性能的影響。
  19. ( 2 ) on the research of the software ' s architecture of motion control, the high - speed and high - accuracy algorithm of interpolate for parameter curve is proposed, which is adaptive for speed

    （ 2 ）研究了高速數控運動控制的軟體結構，並應用二次插補策略，提出了一種基於參數曲線的進給速度自適應的高速高精插補演算法。
  20. The basic idea to construct grpcs is to establish object topology first, then use geometry to change the shape of differential manifold. in chapter 2, we discuss the theoretical framework of grpcs that includes some relative idea about differential manifold. firstly, the definition of potential function on manifold is given

    本文首先討論了廣義有理參數曲線曲面的理論基礎，依次闡述了黎曼幾何中關于流形、函數和映射的基本概念，並在此基礎上提出了微分流形上勢函數的定義。
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