子模型

Firstly,the mathematic model for transportation problem with multimodal transport is analyzed;Secondly,a hybrid genetic algorithm for transportation problem with multimodal transport is presented by introducing a form of hybrid chromosome coding,which considers both transportation quantity and transportation modes,and two hybrid genetic operators.

首先分析了多式联运运输问题的数学模型；其次通过引入关于运输量及运输方式的混合编码，结合两种混合遗传算子，提出了一种求解多式联运运输问题的混合遗传算法；最后用数值例子对算法的有效性进行了验证。

In accordance with the technological difficulties encountered in the process of insulation supervision based on the Dissolved Gases Analysis,several kinds of model and method are presented to improve the reliability and precision of fault diagnosis of the power transformer. Main research content includes:By deeply studying the common transformer faults diagnosing methods,such as three-ratio methods and improved electrical committee agreements,several shortcomings such as uncertainness judgment when the fault reasons,phenomenon and principles come out together while can not consistent to each other etc. For this reason,the old methods can not fully meet the need to engineering practical application.Considering fuzzy relationship matrix can fully represents the causality between fault symptoms and fault types,when diagnosing complex equipments with multiple symptoms and fault causes such as power transformer,a synthetic fuzzy diagnosing model is firstly proposed to diagnose transformers insulation faults based on DGA in this paper. Meanwhile,by further study the character of fuzzy factors,aimed at correcting the defects in classifying fuzzy sets of common fuzzy judgment,a method are put forward by unifying fuzzy synthetic diagnosis and fuzzy principle reasoning.

本文针对应用油中溶解气体分析方法进行变压器绝缘监督时所遇到的主要技术难点，提出了提高变压器故障诊断的准确性、可靠性的几种模诊断方法，主要研究内容有：通过对判断变压器故障常用的三比值法和改良电协研法的深入分析，其诊断准确率较高，但对故障原因、故障现象和故障机理间同时存在不确定性和模糊性的变压器等电气设备的故障诊断，难于满足工程应用的需要；在处理变压器等结构复杂设备的多症状、多原因故障诊断时，模糊关系矩阵可以全面反映这种症状与故障类型间的因果关系，进而提出了变压器故障诊断的模糊综合诊断模型；同时作者还深入分析了模糊算子的特性；针对常用的模糊评判结果的模糊集的集化方法的不足性，提出了将模糊综合诊断与模糊规则推理结合起来进行故障诊断的方法，能达到较好的效果。

In order to make use of time-frequency characteristic of signal,a new method of variational estimation on signal frequency by using AR model power spectrum estimation,designing band-pass filter to gain approximatively source signals and underdetermined mixed matrix,and constructing completed observation signals by expanded subspace primer vector is proposed.

充分利用信号的时频特性，提出了AR模型功率谱估计法滑动估计信号频率，设计带通滤波器近似获取源信号和欠定混合矩阵，以及扩展子空间向量基构造完备观测信号的方法，将问题转化为完备情况下的盲分离，最后运用FastICA方法实现了信号盲分离。

Aimed at the problem in the Kalman multiuser detector with a rapid performance degradation in the presence of signature waveform mismatch in the multipath channel, an improved blind multiuser detection algorithm is presented based on Kalman filtering. The method introduces the subspace technique to modify original state space model, thus the detector is modeled as a vector in the signal subspace.

针对卡尔曼滤波盲多用户检测算法在多径信道存在波形失配的情况下性能迅速下降的问题，引入子空间概念对原状态空间模型进行了改进，进而得到了改进的盲多用户检测算法。

Animal's welfare can be feed back from their vocalism. We had some experiments to get 35 days old chicken's vocalization in different environment, including normal environment、 light off environment and people's disturbing environment. On the base of Mel Frequency Cepstral Coefficient, We introduction a new algorithm for feature extraction---Subband Mel Spectrum Centroid. We used support vector machine classification model to evaluate the performance of using different sound parameters.

本文通过研究35日龄海兰褐蛋鸡在正常状态、光照与人为干扰等应激下发声信息的变化特征，提出基于子带梅尔频谱质心的优化特征参数，并通过建立支持向量机模型，比较了采用优化特征参数与梅尔频标倒谱系数及其一阶、二阶导数组成的特征参数（MFCC_39）在识别不同应激中的应用效果。

The second part is industry analysis. In this part, it firstly say something fundamental about water-heater industry and solar-water-heater industry, then, analyzed industry structure with five-force model^.

第二部分是对行业状况的分析，在这一部分首先对热水器行业及其子行业太阳能热水器行业做了基本情况的描述，然后根据波特的"五力模型"对太阳能热水器行业的产业竞争结构进行了分析。

Based on the theory of stimulated polariton scattering, adopting reported experimental conditions that generate tuning terahertz wave utilizing nonlinear optical parametric oscillation as the theoretical analysis model, taking GaAs, GaP, InP, ZnTe crystal as representative, the absorption and gain characteristics in zinc blende crystal are calculated, and the output tuning characteristics of terahertz wave are also analyzed.

基于受激电磁耦子散射原理，采用已报道的利用非线性光学参量振荡方法产生可调谐太赫兹波的实验条件作为理论分析的实验模型，以GaAs、GaP、 InP、ZnTe晶体为代表，计算分析了在闪锌矿晶体中参量振荡产生太赫兹波的吸收、增益特性，对输出THz波的调谐特性给出了详尽分析。

Methods: Tail suspension model and force-swim model of mice were used to observe the effect of Akebia fruit alcohol extract on relieving depression. The mechanism was examined by inhibiting reuptake of monoamine neurotransmitters.

采用小鼠悬尾实验、强迫游泳实验，抑制单胺重摄取作用实验等动物模型来考察预知子乙醇提取物抗抑郁作用及其作用机制。

We suggested a Henon-Heiles model with reflecting walls to discuss ergodic properties of two-dimensional anharmonic oscillators.

我们建议了用具有反射边界的Henon-Heiles模型来讨论二维非简谐振子的遍历性质。

Analysis of pipe burst is one of the important spatial analysis functions of underground pipeline network comprehensive GIS, the thesis puts forward the main assignment of pipe burst analysis, and analyzes the character of the usher nodes and the retral nodes of arborescent pipe network. The paper realizes the valve topological analysis of the pipe network.

爆管分析是地下管网GIS中重要的空间分析功能之一，论文论述了爆管分析的主要任务，阐述了爆管分析的理论模型，分析了树状管网中结点的父结点、子结点的性质，实现了管网的阀门拓扑关系的分析，在此基础上，完成了地下管网爆管关阀分析的算法实现。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。