可计算

Key words fast-pulse transmission line; equivalent distributed capacitance model; matching method; numerical computation

实际情况中，N个负载电容沿传输线均匀分布，且传输线的总长度不是很长，即传输损耗在可接受的范围内，2 匹配计算方法

Therefore, sensitivity and reliability of transformer protection can both be improved by calculating equivalent instantaneous leakage inductance.

因此，通过计算等效瞬时漏感参数，可同时提高变压器保护的灵敏性和可靠性。

Theoretical calculation shows the anomaly of reservoir tidal gravity is measured at μGal level, while the measured data shows the observation error of such tidal gravity at 10-μGal level. This indicates that the data noise may well disguise real anomalies, and therefore that the lack of measured anomaly data does not necessarily equate to the lack of oil and gas reservoir underneath. The actual observed tidal gravity anomaly can reach tens of μGal. Though it is more than three times the observation error, we can not attribute it to the reservoir-induced tidal gravity anomaly.

理论计算表明，油藏潮汐重力异常在微伽量级，而实际资料表明潮汐重力的观测误差为10 μGal量级，油藏潮汐重力异常可能会被噪声淹没，所以没有观测到潮汐重力异常不等于地下没有油气；实际观测的潮汐重力异常可达数十μGal，即使超过观测误差的3倍，也不能将它直接归因于油藏产生的潮汐重力异常。

Adopting the network of radial basis function ormended BP network,the forecasting network model of stock on estimation region can beestablished.The stock of each pixel in estimation region can be calculated through simulationapproach,the total stock of compartment or sub-compartment can be obtained by way of theintegration to all pixels.

通过径向基网络或改进的BP网络建立估测区域蓄积预报网络模型，借助仿真方式计算估测区域每个像元的蓄积，对全部像元积分可得到林班或小班的总蓄积。

Aiming at these problems, an expectation maximum based MAP algorithm is proposed and the performance is analyzed. The proposed algorithm avoids large matrix operations by using the EM algorithm to decompose the MIMO channel estimation problem into a series of single input single output problems. Besides, a joint estimation is carried out over multiple OFDM symbols in order to enhance the data transmission efficiency and the estimative performance of the proposed algorithm.

该算法利用EM算法把多输入输出信道估计问题化简为一系列独立的单输入输出问题，避免了大规模矩阵运算，降低了MAP算法的计算复杂度；为进一步改善MAP算法的数据传输效率及其估计性能，可通过对多个连续的OFDM符号进行联合信道估计。

Aiming at this problem, a method for volume calculation based on matrix analysis is presented in this paper, and some examples are given to show that this method can be used to solve a class of volume problems in Euclidean space.

对此，本文提出一个基于矩阵分析的容积计算方法，并举例说明该方法可用于求解欧氏空间中一类容积问题。

Calculated image of Euler number, classic code using Matlab realized, could familiar with the Euler number fo...

计算图像中的欧拉数，经典代码，采用matlab实现，可以熟悉欧拉数的求法，及相关MATLAB函数的用法，带图片可测试。

We provide a substitution box, exponential permutation which has much measurable security, and give a enumerating result and a fast algorithm of calculating such permutation. An almost perfect nonlinear exponential permutation with high algebric degree is proposed. with some discussion on how to select the parameters of such permutation. The experimental result shows us a conjecture that there exists no such permutation over even dimensional space. As a way of generating substitution boxes, we briefly point out the cryptographic weakness of the exponential functions derived from such permutation. We also present two new cryptographic indexes, fixed point and cyclic structure, on which we investigate the performance of such permutation. Finally, we give a viewpoint about the application of correlation immune functions in designing substitution boxes.

提供了一种可度量安全强度的代换盒－幂置换；详细阐述了幂置换的实现和计数问题；给出了一种计算幂置换的快速算法；从几乎完善非线性幂置换角度讨论了幂置换参数的选取，并提出了一种高次几乎完善非线性置换；通过试验给出了关于偶数维空间上几乎完善非线性幂置换的一个猜想；简要给出了由幂置换派生出的幂函数的密码局限性；针对幂置换，提出了两个密码安全指标：不动点和循环结构；证明了幂置换在这两个指标下的密码性能；简要讨论了相关免疫函数与代换盒设计的关系。

According to the original Haitong Securities and Urban 1:0.347 of convertible shares calculated on a proportional basis, the limited sale of shares after the ex-dividend costs only 1.44 yuan/share around.

按照原来的海通证券和城市按比例计算的可兑换股1：0.347，有限的股份出售后，除权价只是1.44元/股左右。

In this paper,we tried tocalculate its thermal expansion coefficient using Terner's experiment...

计算结果与实验测定值具有一定的相符性，可作为实测数据可靠性的判据之一。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了