半正合的

For fitting ROC curves and getting the area under the ROC curve, we applied the parametric methods of binormal models and ordinal regression models, the semiparametric method of Cox proportional hazards model, the nonparametric methods of Hanley, Delong.

本文采用双正态模型、有序回归模型等参数法，Cox比例风险模型半参数法，Hanley、Delong非参数法拟合了ROC曲线；文中也考虑了样本量的估计、协变量的混杂效应、再抽样技术计算ROC曲线下面积的标准误与可信区间等问题；并研究了SROC分析方法。

Based on the Hamilton canonical equation for elastic bodies, and using its semi-analytical solution , the linear equation for each layer of laminated shells is established respectively.

以弹性力学中的Hamilton正则方程为基础，分别应用Hamilton正则方程的半解析法构建层合壳每一层的线性方程。

However,authors still do not find the relevant references on convergence and symmetric problems of the semi-analytical solution.Based on the semi-analytical solution for Hamilton canonical equation theory,the formulations of the clamp and simply supported and symmetric boundary conditions on the Hamiltonian element are derived by the variational principle.Several numerical examples show that with increase of meshes,the convergence rate of the semi-analytical solution is faster than the convergent rate of traditional finite element method based on displacement.

①在厚度上没有任何位移和应力模式的假设，由于传递矩阵方法的引入，从理论上讲，不受板壳厚度或层合板壳层数的限制；②采用弹性力学的Hamilton正则方程半解析法，可以克服边界的局部化效应[8]；③由于在平面内或圆柱壳的曲面内采用了有限元法，所以一般的板壳问题不受结构侧面边界条件的限制，在复杂工程板壳问题上具有广泛的应用领域。

In this paper, the statistical characteristics of one plane and one helicopter's RCS dynamic measurement data are studied by using the χ^2 distributing, log-normal distribution and Rayleigh distributing model, along with the Kolmogorov fit test to goodness, the fitting results in some notableness level are acquired by using the three models for different aspect angles for two targets, and the degree of freedom distribution of χ^2 model in all aspect angles is obtained for two targets' RCS data.

文中以某歼击机和直升机为对象，应用χ^2分布、对数正态分布和瑞利分布模型，以及Kolmogorov拟合优度检验方法，研究其RCS动态测量数据的统计分布特征，得到了在一定显著性水平下，两种目标在不同视向角下对三种模型的拟合效果，同时得到应用χ^2分布拟合时模型半自由度随视向角的分布情况。

At length they came up to the Boat; but 'tis impossible to express their Confusion, when they found the Boat fast a-Ground in the Creek, the Tide ebb'd out, and their two Men gone We could hear them call to one another in a most lamentable Manner, telling one another, they were gotten into an inchanted Island; that either there were Inhabitants in it, and they should all be murther'd, or else there were Devils and Spirits in it, and they should be all carry'd away, and devour'd.

这一切正合我的心愿。我让星期五和大副继续干他们的事，自己马上带其余的人偷偷渡过小河，出其不意地向那两个人扑过去。当时，一个人正躺在岸上，一个人还在船里呆着。那岸上的人半睡半醒，正想爬起来，走在头里的船长一下冲到他跟前，把他打倒在地。然后，船长又向船上的人大喝一声，叫他赶快投降，否则就要他的命。

Secondly, we improve Minimum Semi-variance Model with fitting the joint probability density function of rate of return between futures and spot prices based on wavelet density estimation method for improving goodness of fit for the first time.

其次，为提高估计的精度，对最小半方差模型提出了进一步改进，首次引入小波密度估计的方法拟合期现货收益率的联合密度函数，并与经验和正态核密度估计方法进行了比较。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。