全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多

 在分类学科中查询 所有学科 更多类别查询

 历史查询

 二次多项式函数
 This paper presentS a new polynomial function-piecewise quadratic polynomial function, and demonstrates two relative theorems With the treatment of linear time-invariant Systems, the integration operational matrices are developed. 本文介绍一种新的多项式函数分段二次多项式函数,同时,阐述了两个相关的定理。 短句来源 Influenced by the integrality and weathering breakage degree of rock,the biggish different is existed between dynamic elastic modulus gained by dynamical method and static elastic modulus obtained by static method,and the relationship between dynamic and static value of elastic modulus is approximatively expressed as a relationship of quadratic polynomial function. 研究表明,由于受岩体的完整性和风化破坏程度等影响,岩石试件用动力法求得的动弹性模量和用静力法求得的静弹性模量均存在较大差异,且岩石动静弹性模量的关系呈二次多项式函数关系。 短句来源 In this paper,the quadratic polynomial function is used to reconstruct the response surface in search of the possible breakdown point,and the BP neural network is adopted to reconstruct the response surface around the possible breakdown point,fitting the limit state function. 针对这种情况,文章采用二次多项式函数重构响应面来寻求设计验算点; 然后在设计验算点附近,采用BP神经网络重构响应面,拟合极限状态函数; 短句来源
 Due to the development of primary damage, the micro-porosities and micro-cracks are compacted and closed by confining pressure, the stiffness of coal is increased and the relationship between elastic modulus and confining pressure conforms to quadratic polynomial function. 由于原生损伤发育，在围压作用下，煤岩孔隙裂隙被压密闭合，刚度增加，弹性模量与围压之间符合二次多项式关系。 短句来源 In the paper,the quadratic polynomial function smoothing-method is used to smooth the sampling data,which is proved to be effective in filtering the high frequency noise. 采用二次多项式滑动平滑法对采样数据进行平滑,有效地滤除了信号中的高频噪声。 短句来源 Five experimental regions from WFI images were selected to calculate their vegetation index both before and after radiometric calibration and the comparison showed that the degree of fitting using the quadratic polynomial function could reach 99% after the offsets were subtracted from the original DNs. 为了说明辐射定标对植被指数的影响,本文选择5个实验区,比较分析了实验区图像辐射定标前后的NDVI。 当WFI的DN值扣除定标得到的数字计数值偏移量后,DN值的NDVI与表观反射率的二次非线性拟合度可达99%。 短句来源
 相似匹配句对
 A PROPERTY OF QUADRATIC POLYNOMIAL 二次多项式的一个性质讨论 短句来源 Factorization of a Quadratic Polynomial in N Elements n元二次多项式的因式分解 短句来源 On Polynomial Rings 关于多项式环 短句来源 On Factorial Polynomial 关于阶乘多项式 短句来源 On the Uniqueness of the Best Approximation by Polynomial in Quadratic Norm of a Function 函数最佳平方逼近多项式是否唯一 短句来源

我想查看译文中含有：的双语例句
 没有找到相关例句
 This paper presentS a new polynomial function-piecewise quadratic polynomial function, and demonstrates two relative theorems With the treatment of linear time-invariant Systems, the integration operational matrices are developed. By applying these operationla matrices, the dynamic equations are transformed into aset of algebraic equations. A recursive algorithm is derived and this approach is verified to be right by two examples. 本文介绍一种新的多项式函数分段二次多项式函数,同时,阐述了两个相关的定理。针对线性时不变系统,推导了积分运算矩阵,并且应用这些运算矩阵把动态方程转变成一组线性代数方程。文中导出了时不变状态方程的一组递归算式,最后通过两个例子验证了这种方法的正确性。 Piecewise quadratic polynomial functions are employed to perform the analysis of linear time-varying systems.With the treatment of the product of two time functions,operational matrices of integration are developed.Applying these operational matrices,the dynamic equation is simplified to a set of algebraic equations which is more accurate for digital computation.Illustrative examples are included for demonstration. 本文应用分段二次多项式函数推导了两个时间函数乘积积分的运算矩阵，并根据这些矩阵，把一组线性时变系统的状态方程简化为一套便于计算机运算的数值方程。该方法与其他正交函数计算方法相比有更高的精确度，文中两个例子验证了该理论及方法的正确性。 In the paper,the quadratic polynomial function smoothing-method is used to smooth the sampling data,which is proved to be effective in filtering the high frequency noise.Two data process methods both by Discrete Fourier Transform(DFT)and by Fast Fourier Transform(FFT)are compared.An algorithm used to analyse the leakage current and the reference voltage simultaneously in frequency domain is also provided. 采用二次多项式滑动平滑法对采样数据进行平滑,有效地滤除了信号中的高频噪声。对数据处理的两种方法———离散傅立叶变换和快速傅立叶变换进行了比较。给出了一种能够同时对泄漏电流和参考电压进行频域分析的算法。 << 更多相关文摘
 相关查询