曲率變化 的英文怎麼說

中文拼音 [qūlǜbiànhuà]
曲率變化 英文
change of curvature
  • 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...
  • 率 : 率名詞（比值） rate; ratio; proportion
  1. For this purpos, from the point of the log geology, aimed at the actuality of the current fractured reservoir log geology interpretation and evaluation, based on synthetical analysis of the current domestic and foreign fruit of fractal dimension investigation of reservoir fracture, using the method and technique of fractal dimension, through the further discussion of the fractal dimension characteristics of m index and n index in the log interpretation archie model in a sample way and through the theoretic reasoning to the fractal dimension dfa and m index of fractured reservoir interval ' s log curve, according to the geophysical signification of the fractal dimension dfa of fractured reservoir interval ' s log curve shape : the more complicated the change of the curve shape is, the larger the its dfa value is, then the more complicated space structure of fracture and pore, then the higher value of m index of space structure of fracture and pore, and so on, the text propounds an improved method, based on box dimension, of covering log curve with scale grid, and by programming computes the dfa and its m index value of fractured reservoir interval ' s log curve, for instance, ac and rt curve, ect, then further puts this technique into application investigation, and makes analysis of application effects in the reservoirs located in l area of qx oil field from three aspects : 1. the dfa and its m index value of fractured reservoir interval ' s log curve, for instance, ac and rt curve, ect, which are derived from computing, is used to identify reservoir type by crossplotting m index with the product df _ acrt of fractal dimension of acoustical wave log curve and restivity log curve and by experiential discriminance plate of reservoir type in l area of qx oil field

    因此，對該區裂縫性儲集層的類型識別、孔滲特徵的測井地質解釋以及儲層裂縫的發育和分佈規律進行深入的研究便成為本文研究的出發點。為此，本文從測井地質的角度，針對當前裂縫性儲層測井地質解釋與評價的現狀，在綜合分析當前國內外儲層裂縫的分形分維研究成果的基礎上，利用分形分維方法和技術，通過對archie測井解釋模型中的m指數、 n指數的分形分維特性的深入淺出的論述以及裂縫性儲層段測井曲線分維d _ （ fa ）與m指數的理論推導，根據裂縫性儲層測井曲線形態分維值的地球物理意義? ?曲線變化越復雜，則其分維值d _ （ fa ）越大、裂縫孔隙空間結構越復雜、裂縫孔隙空間結構指數m值越高等特徵，提出了改進的基於盒維數的測井曲線網格覆蓋法，編程計算了裂縫性儲層段常規測井曲線（如聲波和電阻率曲線）上分形分維值及其m指數值，進而從以下三個方面對qx油田l區塊的裂縫油藏進行應用研究，效果十分理想： 1將計算得到的可變的m指數與聲波和電阻率分維之積df _ acrt進行交繪，採用儲層分維值分類技術統計分析這些參數變化的規律，並結合qx油田l區塊儲層類型經驗判別圖版，從而實現qx油田l區塊下白堊統的裂縫性儲層的類型識別。
  2. By analysis and comparison of the results, we draw the conclusion as follows : firstly, the quantum tunneling effect is quite pronounced

    通過分析和比較計算結果，我們得到如下結論。第一，體系的能量-反應幾率變化曲線說明量子隧道效應顯著。
  3. Compared with the induction meter, the electronic meter ' s measurement error is affected diminutively by the change of the frequency, that is to say, the electronic meter has a wide frequency respond characteristic and its error - frequency characteristic curve is flat. therefore, taking the whole energy as measurement standard, the measurement error of electronic meter is less than that of induction meter very much ; while the measurement error of electronic meter is bigger than that of induction meter when taking the basic energy as measurement standard

    和感應式電能表相比，電子式電能表的計量誤差受頻率變化影響較小，具有較寬的頻率響應，誤差頻率特性曲線較為平坦，因此，在諧波存在下以全能量為計量標準時，電子式電能表的計量誤差遠遠小於感應式電能表的電能計量誤差，而以基波能量為計量標準時，電子式電能表的計量誤差比感應式電能表的計量誤差大。
  4. Used fourier transforming the nuclear logs, its vertical resolution can be achieved from analyzing the changes of amplitude spectrum slope

    摘要對核測井曲線進行付氏變換，其縱向解析度可以從分析振幅譜斜率變化中獲得。
  5. He finds the pitch range after calculated the three important parameters through the bladed for windows software, then presents an optimized control strategy that regulate the pitch angle in terms of the wind speed. it must control the output power because the variational output power brings the variational loads. he confirms and optimizes the control strategy that the output power is the control target, the output power is divided into three parts

    將功率作為系統控制的目標，將功率分成三段進行控制，在低風速區，載荷是有限的，以功率最大化作為控制目標；在額定風速附近，由於處在升力曲線斜率的變化點，功率變化較大，應盡快調整槳距角進入失速區工作，減少載荷的波動，該額定風速區的上下工作點要通過現場試驗的手段來確定；在額定風速以上，使功率維持在額定輸出，減少功率波動，並通過bladed軟體的模擬計算對控制策略進行了驗證。
  6. Basically like “ adaptive approach ”, the method can control triangulation density with respect to the change of normal curvature of the surface generating a small number of triangular facets, and thiny triangles, degenerate triangles and “ cracks ” in 3d space will not occur, but the speed of the algorithm is higher than that of adaptive one

    該方法基本上可以像「自適應」方法一樣，根據曲面的法曲率變化來控制三角化剖分的密度，生成的三角片數量較少，並且可以避免在三維空間產生狹長的三角形、退化三角形與「裂縫」 ，運行速度明顯比自適應方法快。
  7. The components of the tangential stretch mode of swtns are assigned, the variational curve of the value of ig / id changed with laser power is obtained at 632. 8nm excitation, the vibration of d mode is assigned renewedly

    對單壁碳納米管的正切拉伸模的成分進行了歸屬，在632 . 8nm激發波長下得到了ig / io值的隨激光功率變化曲線。重新對d模的振動進行了歸屬。
  8. Abstract : variations of flow pattern, flow velocity in deep poo l and side bar, mainstream thread, and water surface, caused by excavation project, are investigated by two - dimensional mathematical model in an orthogonal curvili near coordinate system. the change of bed - load transport rate, and redeposition r ate are predicted. the influences of the excavation project on navigation are ana lyzed. grid - type and flat - type excavation alternatives are proposed and discuss ed

    文摘:採用正交曲線坐標系下的河道平面二維數學模型，研究了嘉陵江何家磧邊灘采砂后河道流勢、流態、灘槽流速、主流位置、水面高程及比降的變化規律，預測了采砂方案完成後卵石推移質輸沙率變化及其對航道的影響，並對格形開挖和平整開挖方案進行了比較分析
  9. On the design of the system, the thickness measure system of mems chip is built based on lbu and pump - probe technology. on the analysis of data, the reflectivity curve is analyzed using the law of reflectivity change induced by ultrasound, and the thickness is calculated using the system designed by the article, to aluminum film the size of about 20nm can be measured, when the film be measured is single layer, the relative error of the system is less than 2 %, when the film be measured is double layer, the relative error of the system is less than 10 %

    在基礎理論方面研究了激光（特別是超短脈沖激光）超聲的激勵機理，探討了激光調制技術以提高系統信噪比，闡述了泵束探針束技術及相關實驗設置；在系統設計上，以激光超聲為基本原理，以泵束探針束技術為系統設計方案完成了mems基片厚度測量系統的設計；在數據分析方法上，利用聲致光反射率變化的一般規律對測得的光反射率曲線進行分析，確定超聲回波在薄膜兩界面間來回傳播的時間，以計算薄膜的厚度。
  10. The mode refractive index of 632. 8nm wavelength, which propagates in ion - exchanged planar waveguides, is obtained by m line technology ; the serious problems of silver film ion - exchange also be pointed out. the refractive index profile of planar waveguide is obtained with inverse wentzel - kramer - brillouin method by measured mode refractive index. finally, some improvements of silver film ion - exchange is put forward

    最後介紹了銀膜電場輔助法制備光波導的試驗過程，對實驗獲得的參數進行了分析和計算，得到了波導的模折射率和折射率變化的函數曲線，隨后對在試驗過程中遇到的一些問題和現象進行了闡述，分析了其產生的原因，並提出了自己的觀點和改進的辦法。
  11. Studying on simplification algorithms of " points cloud " data, putting forward three kinds of simplification algorithms of " points cloud " data according to the point number of data set after simplification and the density of data set and the uniformation of curvature change at control point by b spline curve interporlation

    簡化「點雲」數據演算法的研究，提出了按指定數據集點的個數、按數據集點的密度閾值和按b樣條曲線插值型值點處曲率變化是否均勻簡化「點雲」數據的三種演算法。 3
  12. Abstract : numerically solving equations governing the variations of the beam size and the curvature of wave front in the logarithmically nonlinear media ( lnm ), the propagating characteristics of gaussian beams have been described in detail

    文摘:根據對數型非線性介質中高斯光束的束寬和波陣面曲率變化所滿足的耦合方程，採用數值計算對高斯光束的傳輸特性進行了詳細的分析。
  13. It can be changed according to program or music beats, signal strength and frequency content

    可以根據已編程序或音樂節拍，信號強弱及頻率成份跟著樂曲來變化。
  14. Constantly changing curvature based active contour model

    基於恆定曲率變化的主動輪廓模型
  15. Point of inflection

    曲率變化點
  16. In this paper, the improved ann has been used, it can adopt to adjust the most fitness studying according to the curvature changing of different area in the curved surface

    論文採用改進的bp演算法，該演算法可以根據誤差曲面上不同區域的曲率變化來自適應地調節最優學習率。
  17. Because the curvature of surface itself may vary in a large domain, it induces an upper limit of feasible offset distance. the author proposed a method to estimate the offset distance

    由於曲面本身曲率變化，導致曲面可等距距離存在一個上限，本文通過對細分曲面進行分析，給出了一種細分曲面可等距距離的估計演算法。
  18. But this method can ’ t be used to generate tool - path for the kind of surfaces whose curvature varies sharply, since singularity may appear when creating the offset surface. it is computation expensive to resolve the singularity

    但曲率變化大的曲面在生成等距面時發生自交，曲面的自交處理計算復雜，降低了基於等距面的刀具軌跡計算速度。
  19. 3. based on the dynamic response of all damage cases, it discusses the indexes including frequencies, modal curvatures and their compounded index used in rbf networks. it is found that the method can identify the location and severity of the damage accurately and effectively and the compounded index is better than others

    3 .根據簡支工字鋼梁各損傷工況下的動力特性，分別研究了將頻率變化率、模態曲率變化及其組合參數作為徑向基網路的輸入指標時進行結構損傷識別的效果，發現基於徑向基網路的梁式結構損傷識別方法能夠正確識別損傷，且組合參數作為輸入指標時的識別效果更好。
  20. The stress - strain curves are different from macroscale situation. varied strain rates have different effects to nanometer material deformation. compared with macroscale, nanoscale mechanical behaviour of bending is dissimilarity

    拉伸作用下的應力應變曲線變化趨勢並不與宏觀介質連續力學下完全相同，不同的應變率會對材料變形造成不同的影響。
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