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exponential function中文是什么意思

  • 指数函数

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  • 例句与用法
  • Results show that the levitation force is generated between the high temperature superconductor and the magnetic field under the critical temperature . the value of the levitation force is determined by the temperature and the gradient of magnetic field . that is the smaller of the gap , the larger of the levitation force when the temperature is fixed , and the value of the levitation force is an exponential function of the gap
    研究表明，当高温超导体的温度低于其临界温度时，在磁场中开始受到力的作用；受到的悬浮力大小由温度和磁场梯度共同决定；即温度一定时，悬浮间距越小，对应的磁场梯度越大，悬浮力就越大，力的大小与悬浮间距成指数关系；而当悬浮间距一定时，温度越低，对应的悬浮力也越大，且超导体刚进入超导态的一段温度区间悬浮力增大最快。
  • Based on the confirmation of driving force of lunar rover , we analyze the relationship between adhesion coefficient of road surface and wheel slip . in our research , several types of wheel force model are referenced among them , and we select the polynomial model with exponential function as the wheel force model of the lunar rover
    围绕月球车驱动力的确定,本文分析了路面附着系数与滑转率的关系,以车辆动力学分析中常用的几种车轮力模型为基础,选择了带有指数函数的多项式模型作为分析月球车车轮附着力的模型。
  • The useful life curves of gan - based blue led with al2o3 and sic substrate is fit single exponential function [ i = i1 + i2exp ( - t / ) ] . fron this function , we could get aging information of led about stable inteneity 1 , decay intensity i2 and decay time . the novel method of evaluating aging properties of leds was put forward
    用单指数函数拟合了发光二极管的光衰减曲线[ i = i _ 1 + i _ 2exp ( t / ) ] ，这个关系式可以给出三个信息：稳定光强、衰减光强、衰减速度，提出了更加合理的评价led老化性能的方法。
  • 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
    应用透光率脉动检测技术和光散射颗粒粒度分析仪( pda ) ，通过理论分析，将pda的输出信号之一? ?平均透光强度(对应于dc值)作为原水的特性表征参数， dc值可以同时反映颗粒浓度和比表面积因素的影响，试验结果证明， dc值与单位体积水中泥沙颗粒总表面积s _ p之间具有很好的幂函数关系： dc = cs _ p ~ d ，式中c 、 d为经验系数，进而得到了以dc值为参数的高分子絮凝剂投药量公式： d = f ( dc ) = e ( dc ) ~ f ，式中： e 、 f为经验系数，平均相关系数达0 . 981 ，利用所建立的公式，建立了前馈? ?后馈联合控制的在线自动投药模型。
  • Based on the spectral irradiance measured with the sun - atmosphere ultraviolet spectrum radiometer ( sauvs ) developed by the institute of atmosphere physics and the changchun institute of optics and fine mechanics , chinese academy of sciences , measuring the direct and scatter irradiance spectrum of ultraviolet waveband which arrives in beijing global surface , giving a method of retrieving the aerosol optical depth ( aod ) and put up with primary results that exponential function can fit the retrieval results according to its visibility , putting forth different coefficients and functions on variable visibility , also giving a primary analysis on the aod in dust - storm day and some contrast between sun - day and dust - storm day , analyzing the ratio between scatter and total irradiance , and its relationship with atmosphere mass and total atmosphere optical depth , lastly contrasting with the survey results by aeronet beijing station , the results of retrieval is in reason , this work gives some help in researching the co - effect of aerosol - radiance - climate and makes preparation for further survey on the radiance characteristics of dust
    利用中国科学院大气物理研究所与长春光学精密机械研究所合作研制的太阳?大气紫外光谱辐射计( sauvs ) ，测量到达北京地表的太阳直接和散射紫外光谱辐射，导出了大气气溶胶的光学厚度。初步结果表明：北京紫外波段大气气溶胶的光学厚度在绝大部分情况下随波长的增加而单调减小，用指数函数可以较好地拟合反演结果，统计得到了三个水平能见度状况下拟合函数的系数值和公式表达式；初步分析了扬沙、浮尘、沙尘暴天气条件下气溶胶光学厚度的特点，并与一般晴朗天气条件下的气溶胶光学厚度特点做了比较分析；分析了太阳紫外谱辐射中散射辐射与大气质量、大气总光学厚度的定性关系和定量表达式；最后与全球气溶胶监测网络( aeronet )北京站的资料做比对，表明反演结果基本合理。
  • The astringency , error and stability of the numerical method are researched . zero matrix method , constant matrix method , and jacobian matrix method are constructed in order to improve numerical precision and efficiency . the steps for calculating matrix exponential function using pade approach method are given out
    研究了所提西安理工大学博士学位论文数值计算方法的误差、稳定性、收敛性等数学性质，在计算精度和计算效率两方面提出了一些改进措施，构造了零矩阵法、常数矩阵法、雅可比矩阵法等计算格式，给出了利川pade逼近计算矩阵指数函数的求解步骤。
  • Based on a series of tests and investigations , this paper draws some conclusions as following by processing and analyzing the test data . the minimum icing flashover voltage of composite insulators decreases with the increase of ice amount , and the tendency of it accords with exponential function . however , the relation of the minimum icing flashover voltage with icing water conductivity accords with power function
    通过大量的试验研究工作，对试验数据进行拟合和分析处理，得到了如下结论： 1 )合成绝缘子最低冰闪电压随覆冰重量的增加而降低，且其下降趋势符合指数函数规律，与覆冰水电导率的关系符合幂函数规律。
  • A normalized mapping rule of raw grey series is introduced by analysis of exponential function characteristics of the whitening differential equation , which makes the non - equigap grey prediction model ngm ( 1 , 1 ) fit for universal raw grey series , improves prediction precision greatly , meanwhile makes innovation to series with negative values and enlarges grey prediction theory
    通过对白化微分方程解的指数函数特性的分析，研究了原始灰序列的归一化映射规则，使非等间距灰预测模型ngm ( 1 ， 1 )适应一般灰序列，灰预测精度也大大提高。这亦解决了含负值灰序列预测的理论问题，拓宽了灰色预测理论。
  • The results showed that the stress - strain realtionship of pt could be expressed with exponential functions , and there were significant differeces between the normal group and the immobilized group in their theoretical curves of stress - strain relationship and two material constants of pt . also , significant differences were found in tensile strength and tangent modulus between the two groups , but the maximum load of pt in the immobilized group did not decrease significantly
    结果显示：正常组与制动组间髌韧带的应力-应变关系理论曲线有明显不同，其材料常数亦有显著差异；制动组髌韧带的极限强度和弹性模量较正常组均有明显下降，其极限载荷下降不明显。
  • 2 . by regression analysis , we can get the relation between rainfall intensity and the loss modulus of organic matter , total nitrogen and the available nitrogen is exponential function by slope the same as cultivation measure . and the relation between slope gradient and the loss modulus of them is power function
    经回归分析，可得到坡度和耕作措施相同时，雨强与有机质、全氮和碱解氮的流失模数之间呈较好的指数函数关系；当耕作措施相同、雨强接近时，有机质、全氮和碱解氮的流失模数与坡度之间呈较好的幂函数关系。
  • 更多例句：  1  2  3  4
  • 英文解释
  • a function in which an independent variable appears as an exponent
    同义词：exponential,

  • 其他语种释义
  • exponential functionとは意味：{名} : 指数関数｛しすう かんすう｝ -------------------------------------------------------------------------------- 《数学》指数関数｛しすう かんすう｝
  • 推荐英语阅读
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Last modified time:Wed, 13 Aug 2025 00:29:56 GMT

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