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On the basis of traditional combination forecast models, the linear forecast models based on relative error criteria are researched.

在讨论传统的组合预测方法的基础上，对相对误差准则下的线性组合预测进行了研究和推广。

The research results show that renewal theory can be used to direct the policymaker of the vehicle maintenance and repair and it is very effective to simplify the mathematical models and the solutions to the models.

研究结果显示：更新理论完全可用于指导车辆的维修决策，而且对简化问题的数学模型及模型的解非常有效；运行试验的验证结果表明，基于更新理论和更新函数所建立的车辆最优维护周期数学模型的解是准确、可靠且符合实际的。

Results the parameter estimates and it's stability of linear regression models is associated with the variation of explanatory variable between and within level 2units,and the relationship of parameter estimates and it's stability between linear regression models and variance component model is associated with level 2 residual variance or intatra-unit correlation.

结果 线性回归模型参数估计以及估计的稳定性与自变量在水平2单位间和水平2单位内的变异大小有关，线性因归模型与方差成分模型参数估计及其稳定性的关系与水平2残差方差或单位内相关系数大小有关。

ANSYS software was used to analyze the two models. Results When Couette flow was loaded, the stereocilia had a larger angular displacement in non-coupled manner, Von Mises stress were higher on tip link and rootlet, and the characteristics of natural frequency were quite similar on two models.

结果 模拟Corti器振动过程，在相同剪切流的压力作用下，静纤毛在不接触盖膜时表现偏移度较大；两种模型均表现在静纤毛顶连接及小根基部应力较高、固有频率近似。

The sample comprised 25 patients with the first premolar removed during orthodontic treatment. Digital models and lateral cephalometric records were taken pre- and post- treatment. We chose two kinds of regional superimposition methods on the digital models (One was the mesial zone of the third primary ruga and regional palatal vault, the other was the palate) and Baumrind's best-fit for cephalometric superimposition. The amounts of incisor and molar movement were measured and a comparative study was performed.

三。选择25例拔除上颌第一双尖牙正畸患者治疗前、后的上颌模型进行三维重建，分别使用第三腭皱近心端局部腭穹隆和腭部对同一患者治疗前、后的数字化模型进行局域重叠，以治疗前后头颅侧位片的 best-fit重叠为评价标准，比较三种方法之间的差异，对应用三维数字化牙颌模型纵向重叠评价正畸治疗前、后的牙齿移动进行探索性研究。

The concept and models based on optimal balanced growth are established. These models have one saddle point static resolution.

建立了基于最优均衡增长的可持续发展的概念与模型，指出模型具有鞍点性质稳态解。

First, normal mice was given orally by SM, and then was given orally by STM, these mice were formed experimental salmonellosis models, finally these salmonellosis models was treated by bifidobacterium or N.S, and examine interrelated data.

先用硫酸链霉素给正常小鼠灌胃2 d，出现菌群失调症状，再用STM灌胃造成小鼠STM感染，使用两歧双歧杆菌液干预治疗STM感染小鼠，检测不同治疗时间各组小鼠粪便STM菌落数。

Firstly, normal mice was given orally by SM(qd×2d), and the dysbacteriosis were caused in them ,and then they were given orally by STM,these mice were formed experimental salmonellosis models ,finally these salmonellosis models were treated by bifidobacterium ,and count respectively the cfu/g of STM number in the mice excrement during different time of therapy,detect the index numbers of liver and spleen respectively, detect content of TNF-a in blood and in spleen respectively.

先用硫酸链霉素给正常小鼠灌胃2d，出现菌群失调症状，再用STM灌胃造成小鼠STM感染，使用两岐双岐杆菌液干预治疗STM感染小鼠，检测不同治疗时间各组小鼠粪便STM菌落数、肝脾指数、血及脾中TNF-a的含量。采用SPSS12.0统计软件包进行数据处理分析，统计学方法采用双因素重复测量资料的方差分析、单因素随机化设计的方差分析、卡方检验、多组均数比较的非参数秩和检验。结果：随着治疗天数的增加，STM菌落数逐渐减少，未干预组、生理盐水组及双歧杆菌组比较结果均为P＜0.01；组间比较，双歧杆菌组STM数下降最快。

Owing to the possible measurement error of variance and covariance for Markowitz's M-V model, in the present study, it employs two static models and two dynamic models, which are the sample covariance model, implicit factor mode!, implicit factor GARCH model and full-factor multivariate GARCH model.

基於Markowitz(1952)提出的M-V投资组合模型可能造成变异数及共变异数衡量的偏误，因此，本文以样本共变异数模型、内含因素模型等两我种静态模型，并参酌Alexander and Leigh(1997)的内含因子GARCH模型与Vrontos et al。

Aiming at the low productivity of manual painting, an advanced painting technology which might be suitable to the mechanical operation was adopted. A relevant action trajectories and law based on the artificial dynamic simulation of painting were gained . Meanwhile, logic action and manipulator function were designed, the gripper of which was promoted. Furthermore, several sand models synchronization gripper structure was analyzed, which achieved dipping and painting 8 sand models at the same time.

为了解决铸造砂型因人工上涂料效率低下的问题，在不同的上涂料方法中选择了适合机械操作的浸涂工艺，采用了基于浸涂的人工动态模拟，获得了完成相关动作需要的运动轨迹及其规律，进行了针对机械手功能和逻辑动作的设计，并对它的夹持功能作了优化改进，提出了多件砂型同步夹持的结构形式，实现了一次完成8件砂型浸涂的高效率操作。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。