指數波形 的英文怎麼說

中文拼音 [zhǐshǔbōxíng]
指數波形 英文
exponential waveform
  • 指 : 指構詞成分。
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  • 指數 : 1. [經] （比數） index number; index 2. [數學] exponent
  • 波形 : [物理學] wave form; shape; wave pattern; wave profile
  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. On the base of a systematical analysis about the theory of mathematical morphology and neural network, we present that the two methods have many complementary aspects : mathematical morphology has good filtering characteristic, but has not good adaptability and study ability from samples ; neural network has outstanding properties of self - organizing and self - adapting, but has not good filtering characteristic of mathematical morphology

    本文在分析了數學形態學理論和神經網路理論的基礎上，指出了兩者在信息處理中具有很強的互補性：數學形態學具有良好的濾波特性，但適應性差，不具備從圖像樣本中進行學習的能力；神經網路具有很強的自組織和自適應性，卻沒有數學形態學良好的濾波性能。
  3. The fourth chapter " reseach on fractai structure of stock price " anaiyzed the fractai structure of stock price, deduced the investment function, caiculated the hurst exponent, 3 correlation dimension, and max lyaponov exponent, analyzed the self - similarity, long range dependence, circulation period of stock price and sensitivity of stock price to the initial value, suggested took the exponent characterize fractal instead of variance as instrument to measure risk

    第四章分析並檢驗了股票市場的分形混沌特徵，推導了投資函數，計算了表徵股票市場分形特徵的hurst指數，關聯維和最大lyapunov指數，分析了股票價格的自相似性、長期記憶和循環周期，分析了股票價格的波動對初始條件的敏感性，提出中國股票市場具有混沌分形的特性，用傳統的方差法度量股票風險是無效的，必須使用混沌分析能夠理論來刻畫股票收益的風險，建立收益模型。
  4. We have calculated and plotted the curves of the refractive index, group velocity index, lowest - order and second - order dispersion indexes as a function of wavelength. the lowest - order and higher - order dispersion - induced broadening and deforming of light pulses is analyzed for various pulse shapes, such as gaussian, super - gaussian and hyperbolic secant pulses

    給出了折射率、群速指數、低階和二階色散系數隨波長變化的關系曲線，研究了高斯脈沖、超高斯脈沖和雙曲正割脈沖等超短脈沖在clbo晶體中傳播時，由於低階色散和高階色散引起的脈沖展寬和形變。
  5. The result shows that both shanghai stock exchange and shenzhen stock exchange have multi - fractal structure, small - scope fluctuation has long - range correlation, large - scope fluctuation has anti - durative, and the fluctuation extent of yield in shanghai stock exchange comprehensive index is more intense than the fluctuation extent of yield in shenzhen stock exchange component index

    結果表明我國滬深股市均具有多重分形結構，小幅波動具有長程相關性，大幅波動具有反持續性，且上證綜指的波動程度比深成指數收益率的波動程度強烈。
  6. Using the mfdfa method, with the sequence of yield of the daily closing quotation prices in shanghai stock exchange comprehensive index and shenzhen stock exchange component index during the period of may 3rd, 1991 to april 20th, 2006 as the sample, the author researches the fluctuation character of shanghai and shenzhen stock market

    摘要利用多重分形消除趨勢分析方法，以1991年5月3日至2006年4月20日的上證綜指和深成指數日收盤價的收益率序列為樣本，研究了我國滬深股市的波動特徵。
  7. ( 2 ) grey wave forecasting of grey system theory is applied to economic cycle index forecasting. the forecasting result is highly closed to the reality

    （ 2 ）成功地將灰色系統的波形預測方法運用到經濟循環指數預測中，得到了與實際經濟波動高度吻合的結果。
  8. The third chapter is one of the most innovative parts of this thesis. grey relational analysis of grey system theory is introduced, and the theory is applied to index time difference analysis. meanwhile, grey wave forecasting of grey system theory is explained, and the method is applied to economic cycle index forecasting

    第三章介紹了灰色系統理論中灰色關聯分析的方法，並將該方法應用到指標時差分析中；闡明了灰色系統理論中灰色波形預測的方法，並將該方法應用到經濟循環指數預測中。
  9. Under the guide of the matched filtering theory, the pulse compression system, based on fpga ep1k100qc208 - 1 and 4 pieces of high performance adsp21160m, was developed successfully

    在匹配濾波理論的指導下，成功研製了基於fpgaep1k100qc208 - 1和4片高性能adsp21160m的多波形頻域數字脈沖壓縮系統。
  10. Discharge the capacitor to a load after it has charged fully enough, and this produces an exponential decay pulse ( edp ) on the load

    通過開關式穩壓電源產生高壓直流，並控制該電壓對電容器進行充放電就能輸出指數衰減陡脈沖波形。
  11. This paper put forward a method of using amending sine value in the spwm sine table. this method can correct the distortion of the output voltage waveform, which resulted from the dead time used to the voltage type whole bridge main circuit. the inverter system adopts digital fuzzy controller with feed forward correction and which proportion coefficient and integral coefficient is changeable, so dynamic response is improved

    本文提出了一種採用修補spwm正弦表值的方法，用以改善電壓型全橋逆變主電路因上下橋的功率器件切換時先關斷后導通的死區時間而引起的輸出電壓波形畸變；逆變系統採用帶前饋校正的變比例變積分系數的模糊控制器，提高了系統的動態響應指標；系統設計了完善的保護措施，並具有市電電網的故障診斷功能。
  12. For both newtonian flow and non - newtonian flow, the vortices are generated when the waviness of the bottom profile is beyond a critical number. by increasing the waviness, a second vortex can be generated. with the increasing of reynolds number, the symmetry of the streamlines at re = 0 is destroyed and the vortices are sloped and become larger

    當波形板的波動度超出臨界值，波形板壁面上的流動出現流線分離，流動中有渦生成;增大波動度，流動中出現第二個渦; re = 0 ，流線在流場中對稱分佈;雷諾數增大，流線駐點在水平方向出現位置偏移，渦的范圍增大;對于非牛頓流體，隨著剪切變稀指數的減小，渦的作用范圍減小。
  13. The emphasis of the thesis is base - band signal shaping and programmable interpolation algorithm. we introduce the basic theory of base - band signal shaping, and the effect of the digitizing of the ideal raised cosine rollof signal g ( t ) is attentioned. the shaping filter parameters are determined based on the system specifications, and the simulation results are given

    首先從降低鄰近碼間干擾原則出發，討論了基帶成形的基本原理與升餘弦滾降濾波器的時頻特性，重點分析將理想的滾降波形g （ t ）數字化后對頻譜的影響，並且根據系統指標，確定了各項參數，給出了具體的設計舉例和模擬結果。
  14. The frequency analysis results show conclusions as follows : 1. the relative valid spectral power is declined with the volume percentage of inclusions in terms of exponent curve and the tendency of negative direction is same to that of forward direction

    當ly12鋁合金細小夾雜物（小於0 . 16mm ）的體積百分數從0 0 . 35時，在35 50mhz的頻帶范圍內，超聲波形的有效譜功率按近似指數曲線快速下降，沿相反方向檢測時其變換趨勢相同。
  15. For the sake of acquiring preferable quasi - isentropic compression energy waves, wave impedance distribution of the flier - plate had better be controlled between 2 and 3

    為了獲得較好的準等熵壓縮波形，梯度飛片應以波阻抗值為設計參數，而且其波阻抗分佈指數應控制在2 3之間。
  16. After the discussion of the numerical simulation method based on the fdtd method and the pml technique, the motions of the charges and the electrical field lines were first employed to describe the radiation procedures of the pulse electromagnetic waves. then the causes of how the charges are accelerated and how the motion status of the charges are maintained were further studied from the angle of interaction of charge and field. after these analyses, it was pointed out that the pulse radiation is due to the suddenly occurred time - varying electrical field ( displacement current ) in the open space. this view was further evidenced by two examples : one is the partly resistance loaded antenna, the other is the partly curved antenna. the radiation procedures of the pulse electromagnetic waves of many different situations were simulated throughout this paper with the contours and waveforms of electric field given. these figures are very helpful to the understanding of the radiation mechanism of the pulse electromagnetic waves

    在討論了基於時域有限差分法和完全匹配層技術的數值模擬方法之後，首先從運動電荷和電力線的角度直觀地描述了脈沖電磁波的輻射過程，然後進一步從場與電荷相互作用的角度分析了天線上電荷是如何被加速以及如何維持其運動狀態的，指出了開放空間中突然出現的時變電場（位移電流）是脈沖電磁波輻射的根本原因.文中還對局部電阻加載的天線和局部彎曲的天線進行了研究，以進一步說明上述觀點.對多種情況下的脈沖輻射過程進行了數值模擬，並給出了電場的等高線和空間波形圖，這些圖形對理解脈沖電磁波的輻射機理非常有益
  17. The general attenuation law of ground vibration caused by heavy tamping is verified by spectrum analysis in this paper. moreover, the relationship between attenuation index and standard penetration number is created through combination analysis of vibration attenuation and surface wave propagation

    在此基礎上，通過面波分析，得出了場地介質衰減指數和表徵場地介質性質的參數?標準貫入擊數之間的關系，給出了表達式的一般形式。
  18. While in the feature extraction, four ways are researched such as the means of encode of iris texture, the improved algorithm based on daugman ' s, the approach of identification by means of the fourier spectra of the transmission binary model of the human irises and the method of iris identification using wavelet transform. the advantages and disadvantages of these ways are compared. improved algorithm based on wavelet transform is proposed and proves feasible

    虹膜定位中既分析了前人的一些演算法，指出演算法中的不足，又結合數學形態學和hough變換等理論提出兩種新的虹膜定位方法；虹膜特徵提取演算法中，研究了daugman對虹膜紋理的粗量化和編碼，康浩等在daugman基礎上的改進演算法， muron等人的利用虹膜二元模型的傅立葉光譜分佈特徵進行識別以及boles的基於小波變換的虹膜識別演算法等，比較出各個演算法的優缺點，並且在boles的研究基礎上進行了改進，經實驗證明該方法可行。
  19. Time domain noise is simulated by the mathematical pseudo uniform or normal random variable and coupled to deterministic signals such as rectangular ( rect ), triangular ( tria ), unit step exponential ( uexp ), even exponential ( eexp ), or gaussian ( gauss ) pulse voltages in finite number of time samples in finite time period

    用數學類真均勻或常態隨機變數模擬時域雜訊，與定然時域訊號如，方形、三角、指數遞減、或高斯等電壓脈波在有限時域?圍之有限個時域取樣結合。
  20. Based on the model of divided form and inserted value, this paper analyzes the small wave commutation and divided form and then forms the repeated replacement arithmetic of the inserted value for the shanghai securities exponent tend on the newly - typed prediction

    摘要基於上證指數的分形插值模型，通過小波變換和分形分析，構造了新型的預測上證指數趨勢的插值迭代演算法。
分享友人
分享到 Line

分享到臉書