冪函數 的英文怎麼說

中文拼音 [mìhánshǔ]
冪函數 英文
[數學] power function
  • 冪 : Ⅰ名詞1. [書面語] （覆蓋東西的巾） cloth cover2. [數學] （表示一個數自乘若干次的形式） power Ⅱ動詞[書面語] （覆蓋; 罩） cover with cloth
  • 函 : 名詞1. [書面語] （匣; 封套） case; envelope 2. （信件） letter 3. （姓氏） a surname
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 函數 : [數學] function函數計算機 function computer; 函數計算器 function calculator; 函數運算 functional operation
  1. Considering the difference - resisting capacity of power function in classic s - box, we substitute the inverse function by better power function. we prove that these change do not influence the difference resisting capacity from the theory

    其次考慮到經典s盒中冪函數的抗差分攻擊能力，我們用冪函數取代rijndael演算法中s盒的求逆運算。
  2. It is shown by analyzing large test data that the empirical formula presented in the paper has higher linearly dependent coefficient, lower average relative error and relative standard deviation compared with the traditional empirical formula of orthoscopic and power function

    試驗數據表明，本文提出的經驗公式比傳統的直線式和冪函數式經驗公式的線性相關系數更高，且平均相對誤差和相對標準差都低。
  3. Using the rock resistivity meter with simulating in - situ conditions, the relations between rock resistivity and temperature were observed from 6 sandstone samples with different porosity and permeability, while samples were brine water - saturated and subjected to certain confining pressure. it is found that the resistivities of water - saturated rock samples decrease in the form of power expression with the temperature increase. although the resistivity of brine water decreases with temperature in the same rule, it can not entirely account for the decreasing of rock resistivity. the cementation factor

    利用模擬地層條件巖芯電阻率測量儀，對6塊孔隙度滲透率各不相同的砂巖巖芯，在一定圍壓條件下，巖芯完全飽和鹽水時，考察了巖芯電阻率隨溫度的變化。發現飽和鹽水巖芯的電阻率隨溫度升高，以冪函數形式下降。雖然巖芯中飽和鹽水的電阻率同樣隨溫度以冪函數形式下降，但巖芯電阻率的下降不能完全用巖芯飽和鹽水的下降表徵。
  4. When the water mass fraction of the substrate is about 4500, its ec can be predicted accurately by both the power function as well as the linear function models

    控制基質質量含水率在45 %左右的條件下，用冪函數和線性函數預測基質電導率都獲得了較高的精度。
  5. 2. doppler frequency shifting and curve fitting differential methods for measuring velocity are analyzed and compared. the least - squares curve fitting methods based on power functions and orthogonal functions are analyzed and compared

    2 .對測量速度的兩種方法，多普勒頻移法和曲線擬合微分法作了分析和比較;對以冪函數族和以正交函數族為基底的最小二乘曲線擬合法作了對比分析。
  6. Pass the interlace series type linear differential equation that coefficient contains power function and arrangement number change into the linear differential equation of successive integral, have found out the theory and method that begs this kind of equation to know to untie. theorem have happened have given strict proof, and through example, have introduced it ' s application

    摘要通過把系數含有冪函數與排列數的交錯級數型線性微分方程化為可逐次積分的線性微分方程，找出了求這類方程通解的方法與理論，把所得定理給出了嚴格的證明，並通過實例介紹了它的應用。
  7. On the basis of theory analysis, the average transmitted light intensity ( correspond to dc value ) was determined as characteristic parameter of raw water using photoelectric method for monitoring the fluctuation of transmitted light and photometric dispersion analyzer ( pda ). the dc value was closely related to both particle concentration and surface area of sand clay simultaneously. the experimental results shows that there is an exponential function relation between dc and surface area of sand clay in unit volume water ( sp ) : dc = asbp in which a and b are empirical coefficients. then the formula of macromolecule flocculant dosage is found to be d = f ( dc ) = e ( dc ) f in which e and / are empirical coefficients and the average correlation coefficient equal to 0. 981. so the model of automatical control system of water treatment plant was established using the formula

    應用透光率脈動檢測技術和光散射顆粒粒度分析儀（ pda ） ，通過理論分析，將pda的輸出信號之一? ?平均透光強度（對應于dc值）作為原水的特性表徵參數， dc值可以同時反映顆粒濃度和比表面積因素的影響，試驗結果證明， dc值與單位體積水中泥沙顆粒總表面積s _ p之間具有很好的冪函數關系： dc = cs _ p ~ d ，式中c 、 d為經驗系數，進而得到了以dc值為參數的高分子絮凝劑投藥量公式： d = f （ dc ） = e （ dc ） ~ f ，式中： e 、 f為經驗系數，平均相關系數達0 . 981 ，利用所建立的公式，建立了前饋? ?后饋聯合控制的在線自動投藥模型。
  8. The power spectral densities which existed in the form of power law are used to determine the parameters of the power spectral densities in the rational form. the computer simulation for the models is also carried out

    對路面時域模型的建立，通常需要路面功率譜密度的表達式為有理函數的形式，而國標中所推薦的功率譜密度為冪函數形式。
  9. The q - s curves which describe relations of load and displacement are simulated by power - function math models. and the method to forecast utmost bearing capacity of anchor - hold tension piles is offered

    運用冪函數數學模型對抗拔樁q ? s曲線進行模擬，並在此基礎上提出了對錨樁抗拔極限承載力預估的方法。
  10. I. a mtil ( iaxial elastic - plastic hardening - sofling constitutive model of concrete is proposed iii order to offer a nonlinear material model of concrete for space restoring force analysis of reinforced concrete members taking into account the softening behavior of concrete. the concrete material model is incorporated the elastic - plastic hardening fracturing constitutive model of concrete with the plastic - fracturing theory of concrete, modified without defining two loading functiomis, and based on five parameter power function failure criterion proposed by guo zheng - hai etc from tsingliua ( jniversity, or three parameter unified strength theory proposed by yu mao - hong from x ian iiaotong university

    1 、將砼彈塑性硬化斷裂本構模型與塑性斷裂理論結合起來，並加以改進，但無需定義兩個加載面，以清華大學過鎮海建議的五參數冪函數或以西安交通大學俞茂宏建議的，參數統一強度理論作為砼的強度破壞準則，建立了砼多軸彈塑性硬化松馳本構模型，能為鋼筋砼構件空間恢復力分析提供砼非線性材料模型，並能反映砼材料的軟化段。
  11. In light of the measure way of fluid static pressure falling in proportion, the explicit function method of solving exponent by power function was simply and conveniently acquired through recording fluid flowing times

    文章採用流體靜壓頭下降成比例的測量方法，記錄其流動時間，簡便地解決了冪函數求解指數的顯函數方法。
  12. The errors of the data obtained using the power function model are very small from the test data

    用冪函數模型描述的回歸曲線以及根據試驗參數得到模擬曲線與試驗值比較誤差均較小。
  13. Through the flume experimental research, the velocity distribution formulas for rectangular open channel have been found, including parabola form of velocity distribution on the vertical and power form of mean velocity distribution on the transverse direction ; meanwhile, the means of ascertaining correlative coefficient have been given in this paper

    摘要通過對明渠流速的水槽試驗研究，建立了矩形斷面明渠沿垂線流速的拋物線分佈公式和橫向平均流速的乘冪函數分佈公式，同時給出了相關系數的確定方法。
  14. The consolidating wave speed of ten concrete specimens within four kinds of composition was inspected in 28 days, and we got the analogical law that the value of consolidating wave speed changes with the increasing concrete strength : the consolidating wave speed decreases when the concrete strength increases, and they varies according with exponential function. so, the feasibility of the consolidating wave speed method was validated, and this method has the advantages that it can be used to testing fresh concrete strength real - timely

    在實驗室監測四種配比共十組混凝土（砂漿）試件28天齡期內的固結波速，初步得出了固結波速隨混凝土強度增長而變化的規律：固結波速隨混凝土強度增長而降低，二者呈冪函數規律變化，而且各組試件的固結波速隨混凝土（砂漿）強度的增長有非常相似的變化規律，由此可知固結波速法檢測混凝土強度是可行性的，其優點是可以實時監測混凝土強度的增長。
  15. In harnessed watershed, a is smaller and b is bigger, but they are contrary in no - harnessed watershed. the flood peak volume modulus and sediment transport modulus is also power function relationship. but parameter a and b is different largely in different watershed and the relativity is not well than relationship between runoff depth and sediment transport modulus

    參數a 、 b可以反映流域有無治理的差異，參數a在有治理或部分治理的流域內均小於無治理流域；參數b在有治理流域內則較無治理流域偏大；流域次降雨洪峰流量模數與輸沙模數也為冪函數關系，但參數a 、 b在不同流域之間差別較大，其相關性不如徑流深與輸沙模數關系好。
  16. Based on creep constitutive model of power function, numerical simulation and detailed algorithm applied to the analysis of general fem is presented for the stress and deformation analysis of shuibuya concrete faced rockfill dam

    摘要採用高圍壓下的冪函數流變本構模型進行堆石體應力變形計算，推導該本構模型在三維有限元分析中的具體演算法和實現步驟，對水布埡面板堆石壩進行了考慮堆石流變性的應力應變分析。
  17. Control high - intensity beam halo - chaos via power - function feedback method

    混沌的冪函數反饋控製法
  18. The wetting front moved nearly parallel to the soil surface, and its length could be described by a power function of time, when the distribution of initial soil water was uniform

    當初始含水量分佈均勻時，降雨入滲過程中濕潤鋒面幾乎平行坡面運移，濕潤鋒深度與時間的關系可用冪函數描述。
  19. Assume that material constants exponential functions or power functions of spatial variable, the related bending fracture models are set, i. e. a series of boundary value problems of partial differential equations are established

    再將材料常數依次設為空間變量的指數函數和冪函數，建立了相應的彎曲斷裂模型，即一系列相關的偏微分方程的邊值問題。
  20. 4. through our research, the whole measuring scheme is finalized for pulse - counting method with analog intervene chosen to measure distance, the differential coefficient method based on the least - squares curve fitting based on power functions chosen to measure velocity and qd optical spot location method chosen to measure angle

    4 .通過研究，最終確定了以模擬插入脈沖計數法測距，冪函數族基最小二乘曲線擬合微分法測速，四象限探測器（ qd ）光斑定位法測角的脈沖激光雷達整體測量方案。
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