離差曲線 的英文怎麼說

中文拼音 [líchāqūxiàn]
離差曲線 英文
departure curve
  • 離 : Ⅰ動詞1 （離開） leave; part from; be away from; separate 2 （背離） go against 3 （缺少） dispens...
  • 差 : 差Ⅰ名詞1 （不相同; 不相合） difference; dissimilarity 2 （差錯） mistake 3 [數學] （差數） differ...
  • 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...
  • 曲線 : [數學] curve; bight; bought; profile; net曲線板 french curve; irregular curve; curve board; splin...
  1. Method of deal with data error by subsection curve fitting and discrete degree

    分段曲線擬合與離散度加權的數據誤差處理方法
  2. It makes sampling data regularized by means of man - machine interactive mode and procedure method, respectively. the driven data of the cutter guide is generated, which is based on sampling data processed. it proposes an intelligent data reduction algorithm which bases on the combination of straightness of curves, equidistance and distance deviation principle

    首先採集並分析了內輪廓數據，分別運用程序處理方式和人機交互方式實現采樣數據點的規則化處理;根據處理后的測點數據生成磨頭驅動數據;並提出了一種基於曲線曲率、等距及距離偏差帶的自適應數據壓縮方法。
  3. This paper analyses emphatically the position error and manufacture error of critical - angle prism the position error and aberration of object lens the position error and manufacture error of the polarization beam splitter the position error of the detector, and come out their relations

    著重分析了臨界角棱鏡位置誤差與製造誤差；物鏡的位置誤差與像差；偏振分束棱鏡的位置誤差與製造誤差；探測器的位置誤差等對離焦誤差信號的影響，並給出了理論曲線。
  4. A normal transform is introduced, and there are enough much grids in the region between the critical layer and the wall, where the variation of the disturbance is the quickest. the finite - difference of governing equations with fourth - order accuracy in the normal direction is utilized in full regions including points close the wall, and is very important for accurately discreting equations. the combination of global and local methods is implemented, and a new iterative formula is derived

    對于曲線坐標系下的拋物化穩定性方程，文中發展了求解的高效數值方法:引進法向變換，使得在臨界層與壁面之間的擾動量變化最快的區域有更多的法向網格點;導出包含邊界鄰域在內的完全四階精度的法向有限差分格式，這對方程精確離散至關重要;採用全局法和局部法相結合的方法及其新的迭代公式，大大加速收斂並得到更精確的特徵值。
  5. Aiming at the study actuality of fan performance monitoring system and analysis of fan performance curve changes affected by inlet - box and the different fixed - angles of guide blades in the course of installation, a fan flow monitoring model based on rbfnn in whole flow zone was established in this thesis. in the model, the method of no throttle and fan performance curve were used as basis. and on the basis of that model, fan performance curves of 4 - 73no. 8d were approached with experimental data of different speed, different opening - angles of guide blade and different resistance of pipeline, the precision and the error law of model were studied

    本文針對電站風機性能監測系統研究較少的現狀，在實驗的基礎上分析了現場加裝進氣箱和由於安裝造成的導流器葉片開度不一致對風機性能曲線的影響，並在此基礎上採用無節流方法測量流量，以風機調節性能曲線為依據，建立了基於徑向基函數（ rbf ）神經網路的風機流量全程監測模型；以實驗室4 - 73no . 8d離心風機為研究對象，探討了rbf神經網路差壓模型在變轉速、變導流器開度和變管網阻力等工況下的應用精度和誤差分佈規律；最後用visualc + +語言開發了風機性能在線監測系統。
  6. According to these accomplishments, several techniques are expounded emphatically in this paper, including 3d refraction statics, coherent noise suppression by prestack wave field separating ( prestack fx noise attenuation ), 3d prestack multiple domain random noise attenuation, multiples attenuation, nmo of unsymmetrical hyperbola, dynamic replacement of wave equation, surface - inconsistent residual static, super bin stacking, poststack depth migration and prestack depth migration. all the techniques have been applied in seismic processing of 2d, 3d and wide - line profiling and obtained good results

    本文根據項目組研究成果，重點閘述了三維折射波靜校正技術，疊前波場分離相干噪音壓制方法（疊前fx去噪） ，疊前三維多域隨機噪音衰減技術，多次波衰減技術，非對稱雙曲線動校正技術，波動方程動態替換技術，非地表一致性的剩餘時差靜校正技術，超面元迭加處理技術，疊后深度偏移處理，疊前深度偏移處理等。
  7. Several materials with large coefficient of expansion were selected to make packaging components, and it was found that the packaging materials have good temperature sensitivity and compatibility with optical fibers. experimental accuracy and repetition of fbg temperature sensitivity and compensation were discussed. have selected several materials which has bigger coefficient of expansion to do packaging components, have made many temperature experiments, there have not flaws, such as aging, crackle, absciss layer, packaging materials have good temperature sensitivity and compatibility with optical fiber ; have designed the simple and practical packaging components, have performed a serials of experiments about accuracy and repetition of fbg wave - length, have obtained the first step conclusion ; have analyzed the result and made comparison between the result of different experiment, have summarized the best packaging effect and several rules to reduce mistskes

    本文所做的主要工作包括以下幾個內容：一、選取了常見的熱膨脹系數大的材料製作封裝元件，經過多次一80到80反復測試，封裝元件沒有出現老化開裂、封裝裂紋、空洞、離層等缺陷，封裝材料具有良好的溫敏穩定性及復用性，與光纖相容性較好；二、對光纖光柵進行簡單、實用的封裝處理，就封裝效果的優劣性、波長測量的準確度、重復性和封裝時產生的波長損失等方面進行了一系列的實驗，得出了初步的結論；三、對溫敏和溫度補償式封裝的實驗數據進行了詳細的分析和對比，從數字上對溫變過程中光纖光柵中心波長的改變及溫變曲線進行了定量的分析，在大量實驗數據分析結果的基礎上，總結出哪種材料封裝效果更好，以及如何有效的減小實驗誤差。
  8. This gives a value, which is the point of maximum slope either side of the center of the curve

    等於與該分佈的算術中平均數之間離差其平方的算術平均數的平方根? ?值，即正態分佈曲線任一側的斜率的最大值。
  9. Two transducers b and c, which record the time when the shock wave front arrives, are placed on both sides of location ( a ) with equal distance, the average shock wave speed at location ( a ) can be calculated from the distance b to c and the time that the shock wave needs to travel from b to c. all the tested signals are stored on a pint - sized system of independent function

    同時測速測壓的方法是指在測取沖擊波壓力-時間曲線的同時，在被測點前後等距離處分別安裝壓力傳感器，記錄沖擊波上升前沿到達的時刻，通過時間差來獲取被測點處沖擊波的平均速度。所有的測試信號都被記錄在同一個小型的、能獨立工作的測試系統中。
  10. By using auto - adjusting boundary conditions and the method of three cubed spline curve fitting, the system software can recover both of the horizontal and vertical beam profile. the measurement system can also measure the beam landing screen error of cpt. it provides a important measurement and analysis tool to improve the performance of electron gun and dy, and improve the definition of cpt

    系統軟體中，提出了採用動態確定邊界條件，通過對離散采樣點的三次樣條插值曲線的擬合恢復束斑x和y方向的輪廓，本系統既能準確客觀地描述電子束輪廓，又能夠準確快速地測量電子束著屏誤差等多種參數，為cpt電子槍和偏轉系統的性能改進與解析度的提高提供了有力的測試分析和研究手段。
  11. We simulate the practicality system to experimentalize, obtain the relation between defocus and focus error signal, make it a condition that na = 0. 625 and n = 1. 7979

    並模擬實際系統，實驗得出當臨界角棱鏡的折射率n = 1 . 7979 、物鏡的數值孔徑na = 0 . 625時，離焦量與離焦誤差信號的關系曲線。
  12. In practice, it ’ s very hard to find any ideal scatter points to track, so this thesis focuses on the motion compensation algorithm base on motion parameters estimation, which is used in r - d fft imaging algorithm and verified by simulation. work of this thesis contains : first analyze the signal - processing model of isar system in detail, and establish a 3 - dimensional mathematical scattering model of moving target. then some improvements are made on existing compensation algorithm, to get a higher image quality and reduce compute burden

    本論文有以下幾點創新: 1 .在距離向的補償（包絡對齊）方面，採用基準相關法代替相鄰相關法或積累相關法，一定程度上解決了可能出現的包絡漂移和包絡突跳現象;根據目標運動軌跡特點，採用二次曲線擬合的方法，將包絡對齊時的局部誤差轉化為全局的誤差，以便實現較優的整體對齊效果。
  13. Firstly, the predesign is carried out by use of the conventional analysis, and then the acceleration curve of the cam driven component is processed and revised discretely according to the requirements of dynamics performance. the design equation based on a refined finite - difference algorithm is established and the calculating process is realized by the computer programs. consequently, the cam profile with good performance can be attained

    該方法先用常規解析法作初步設計，根據動力性要求對從動件加速度曲線進行離散化處理和修正，再用有限差分法建立凸輪型線的設計方程式，通過計算機程序進行計算求解，因而可以獲得優良性能要求的凸輪型線。
  14. The great tour purchasing power is the drive power of promoting the region ' s tourism developmentln the regional space, scale economic and regional separation are one of the basic characteristics of promoting tourism industry, so we must arrange the regional tourism industry with a systematic method and give prominence to the central city. for its outstanding area in the regional space, central city has evident superiority in the regional ecnomic development, and has echelon between central city and its periphery scennic spots, which is the inducement mechanism of tourism industry ' s arranging, developing and advancing step by step. for the law of diminishing marginal utility and the theory of equilibrium, the max utility equilibrium of tourism consumption be at the point of tangency of undiscrepancy curve and the cost budget curve

    中心城市居民巨大的出遊力是拉動其周邊旅遊地發展重要的內在驅動力；由於地緣關系，區域規模經濟與地域分割並存，是旅遊產業運動的一個基本特徵，為此必須對區域旅遊經濟進行系統化布局，突出中心城市的產業中心性；因其區位條件獨特，中心城市在區域經濟發展中居於明顯的優勢，與周邊城鄉部位存在經濟發展上的梯次性，這種梯次性是區域旅遊生產力布局、產業發展梯次傳動，最終整體聯動的經濟誘導機制；根據邊際效用遞減規律和旅遊者最大效用均衡理論，旅遊消費效用最大化的均衡在無差異曲線與開支預算線的切點（即旅遊目的地選擇的最佳位置）上，且隨著邊際效用遞減，目的地選擇的最佳位置向遠離中心城市方向移動，這就是中心城市與周邊旅遊地互動關系的經濟學解釋。
  15. The author ' s work gives new way, which is beneficial to real time interaction and can efficiently reduce computing time as well as data storage amount. these algorithms can find good use in numerical machining, robotics, form - position tolerance and computer graphics. ( 3 ) degree reduction for nurbs curves and surfaces by applying the theory of the best uniform approximation of chebyshev polynomials and the explicit matrix representation of nurbs curves, this thesis centers on the research of the explicit nearly best approximation of multi - degree reduction of nurbs curves

    以上關于等距曲線的幾何逼近與代數逼近的演算法改革了當前國際圖形界只能對基曲線沿法矢方向平移定距離的點作近似逼近的固定模式，創造了利於交互操作，能有效地減少計算量及數據存儲量的新方法，可在數控加工、浙江大學碩士學位論文機器人、形位公差學、計算機圖形學中獲得很好的應用（ 3 ） nurbs曲線曲面降階應用nurbs曲線的顯式矩陣表示及chebyshev多項式逼近理論，以實現nurbs曲線顯式一次性降多階的近似最佳逼近為目標進行了研究
  16. 22 paired inferior collicular neurons were obtained in the experiment. the neurons were recorded in the depth of 198 - 1254 u m ( 544. 59 ? 72. 37 n m, m + sd ), and their bfs were 11. 25 - 59. 29 khz ( 26. 77 + 9. 95 khz, m ? d ) : the minimum thresholds ( mts ) werelo - 66 db spl ( 38. 14 ? 14. 39 khz, m + sd ) ; the latencies were 4. 0 - 16. 0 ms ( 8. 19 + 3. 14 ms, m + sd ) ; the best intervals between paired sound pulses were 0. 01 - 28. 71 ms ( 3. 93 + 2. 52 ms, m ? d ) 0 the results showed : l ) there were interactions between the neurons in the iso - frequency lamina and hetero - frequency lamina which included mutual inhibition ( 18 / 22, 81. 8 % ) and mutual facilitation ( 4 / 22, 18. 2 % ), and the mutual inhibition in iso - frequency lamina was stronger than that in hetero - frequency lamina ; 2 ) the mutual inhibition decreased with sound level increasing ( p < 0. 001, anova ) ; 3 ) the analysis of the inhibition of discharge rate at lodb above mt showed that the inhibition increased when the paired neurons " bfs difference decreased ( r = - 0. 545, p = 0. 0006 ) ; 4 ) the mutual inhibition of paired neurons can sharpen the frequency tuning and the effect increased when the frequency was away from the bf ; 5 ) the changes in q10, q30 decreased with bfs difference of the paired neurons increasing ; 6 ) the mutual facilitation between paired neurons not only increased discharge rate, but also widened the frequency tuning, i. e., increased response frequency

    結果表明： 1 ）同頻層神經元之間或者非同頻層之間神經元之間存在相互作用，這種作用既有相互抑制（ 18對，佔81 . 8 ） ，也有相互易化（ 4對，佔18 . 2 ） ，且同頻層神經元之間的相互抑制作用較非同頻層神經元之間的相互抑制作用要強； 2 ）神經元對低刺激強度反應時，所受到的相互抑制作用較強，隨著聲刺激強度加大，抑制作用逐步降低（ p 0 . 001 ， anova ） ； 3 ）對閾上10db放電率抑制百分比進行的分析顯示，配對神經元之間的最佳頻率差越小，相互抑制作用越強（ r = - 0 . 545 ， p = 0 . 0006 ） ； 4 ）配對神經元之間通過相互抑制作用可表kx碩士學位論文waiaster 』 sthesis現出調諧銳化作用，該作用的效率與頻率有關， bf處的銳化作用較低，偏離bf時其銳化作用逐步加強； 5 ）頻率銳化作用的效率與bf差有關，隨著配對神經元之間的bf差擴亢q10 ， q30值的變化逐漸減小，其變化百分比與配對神經元之間的頻率差存在明顯相關； 6 ）配對神經元之間的相互易化作用不僅表現在放電率增加上，也表現在頻率調諧曲線的擴寬，即頻率響應范圍擴大。
  17. In general, the upward amplitude curve " curvature is larger, and it changes quicker. on the contrary, the downward is smaller and slower ; because the flare force contains the square of the wave elevation velocity, it results in an difference between the flare force frequence and the associated moving frequence ; the flare force decreases the downward amplitude of heaving oscillations ; the speed of ship has an ignorant effect on the peak values of three calculated values, but there is an obvious effect on the oscillating frequence ; the wave amplitude has an effect on the ship motion, and there is an linear relation between the oscillating amplitude and the wave amplitude on the whole. by the way, there are some experiences and lessons according to the progress calculation : before the calculation of the ship motion, we should checkout the balance in a calm water firstly, namely, the whole displace of ship and the longitudinal position of the center of gravity must be consistent with the draft in calm water, or else, the calculation may show the " floating " phenomenon ; the mixed language programming has a lot of virtues, but it exists a fatal limitation - the debug of dll

    研究表明：在某些頻率范圍內相關水動力系數基本不隨吃水變化，只有超過某一頻率后水動力系數的值才會出現差異；在橫搖方向，水動力系數並沒有隨著吃水的變化發生規則變化，而是出現了波動現象；近船首剖面的水動力系數計算表明，水動力系數的波動非常大，並遠遠偏離了平均位置的水動力系數值，值的變化速率也不盡相同，總的看來，上振幅曲線曲率較大，變化較快，下振幅曲線曲率較小，變化較慢；外飄力和波面運動的速度的平方項有關，導致其振動頻率和相應運動方向的頻率不同；外飄力使升沉向下運動的幅值減小；船速對三個計算量的峰值影響甚微，但對振動頻率有明顯影響；波幅對船舶運動的影響是明顯的，船舶運動的幅值基本上和波幅成線性關系。
  18. The apsp produced abroad is made by numerical controlled machine tool, which has noise level of 71db ( a ), the apsp produced in our country is made in the method of exploratory which has noise level of 73db ( a ) and 75db ( a ). in order to analyze the influence of stator curve to noise, the author used tri - coordinate measuring instrument to measured exactly the inside surface of stator and got the straddling point coordinate, and made curve fitting by using matlab as language and studied the fitting effect and then worked out the equation of stator transition curve in return seeking, then comparied this method with the standard style and made the conclusion : the equation of atator transiting curve of apsp made by numerical controlled machine tool is close to theorical 5 power curve standard style, but compared with it, the stator transiting curve of apsp produced in exploratory has a major error. combining the testing results of noise, one can know that the qualily of stator transition curve play an importance to t he noise of the pump

    國外生產的汽車動力轉向泵是用數控機床加工的，其噪聲值為71db （ a ） ，國內生產的汽車動力轉向泵是用靠模方法加工的，其噪聲值分別為73db （ a ）和75db （ a ） ，為了分析定子曲線對泵的噪聲的影響，本人用三坐標測量儀對定子內表面進行精密測量，獲得定子內表面的離散點坐標，以matlab語言為工具對離散點進行曲線擬合，觀察擬合效果，然後，用回歸方法求出了定子過渡曲線的方程，並把該方程與理論方程標準型進行了比較，得出如下結論：用數控機床生產的汽車動力轉向泵的定子過渡曲線方程非常接近理論5次曲線標準型，而用靠模方法加工的汽車動力轉向泵的定子過渡曲線與理論5次曲線標準型相比較，則存在著較大的誤差，結合噪聲測試結果可知，定子過渡曲線的優劣，對泵的噪聲大小有著重要的影響。
  19. To fulfill the need of the application of rp technique in medical domain, reverse cad modeling from medical cross sections is systematically studied in this dissertation. firstly, some algorithms related to the research of this dissertation are studied. new algorithms for orientation and inclusion test for simple polygon, an error constrained automatic faring algorithm for b - spline curve and a theorem regarding the termination criterion for subdivision of triangular bezier patch are proposed

    本文針對rp技術在醫學領域應用的需要，系統研究了基於醫學斷層輪廓數據的反求cad建模理論和方法： （ 1 ）在基礎演算法研究部分，提出了簡單多邊形方向及點在多邊形內外判斷的新方法、三角b zier曲面片離散的誤差控制定理和一種帶誤差約束的b樣條曲線的自動光順方法； （ 2 ）提出了一種基於相鄰層輪廓相似性的醫學斷層輪廓數據曲面重構方法； （ 3 ）提出了一種稱為「虛擬測量」的曲面模型處理方法。
  20. Several influence factors to result plasma drift in hainan were analyzed. in this paper the characteristics of ionospheric parameters variation were analyzed systematically and some new results in storm - time such as seasonal behaviors were obtained ; it is the first time to investigate the ionospheric drift behavior in hainan and some new results was obtained, the relationships between each two plasma drift velocity components in storm time in hainan were found and the electric filed variation in hainan ionosphere also was obtained ; the results also show that there are big differences of the ionosphere parameters bo and bl obtained from the data with that obtained from the iri - 2001 applied for hainan ; a new phenomena was found during a strong magnetic storm, that a layer with very strong electron density and density grad was found during the recovery phase of the storm, its horizontal scale is beyond 100km and temporal scale is about 2 hours, this phenomena repeated 3 times continuously. a type of negative disturbance in high and low latitude but positive disturbance in east - asia also has been found

    本文較為系統地給出了海南地區電離層的參數變化特徵，特別是得到了一些暴時與以往不同的季節特性；第一次給出了海南地區的電離層等離子體漂移特徵，發現等離子體漂移暴時擾動在三個方向上有內在的聯系，得到了電場變化曲線；研究結果還表明海南電離層的半厚指數和形狀參數等與國際參考電離層iri - 2001存在很大差別；通過對強磁擾動事件期間的參數變化特性分析發現，在磁暴恢復相期間海南地區電離層底部存在一個電子密度非常大的高密度區，高密度區底部電子密度梯度隨高度急劇增加，該區域的水平尺度可達100公里以上時間尺度約為2小時，連續出現過三次，這是一個在海南從來未發現的新現象；研究還發現了暴時東亞地區電離層擾動會出現高低緯負相而中緯正相的現象。
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