Results: (1) The results from one-variate and multivariate multilevel models were mainly consistent.
结果：(1)一元多水平模型和多元多水平模型筛选变量的结果基本一致。
Objective To explore the special applicability of the multilevel models in analysis of crossover design.
目的探讨多水平模型在交叉设计资料分析中的应用价值。
Conclusion: Multivariate and multilevel models can effectively analyze longitudinal data with several dependent variables.
结论：多元多层模型可有效地分析具有多个因变量的纵向研究资料。
Results Multilevel models can present the variance covariance metrics of two dependent variables in every levels, and make out the functional expresses of correlation coefficient with covariates.
结果双变量多水平模型可以估计各水平两个变量的方差协方差阵，据此可以计算出相关系数随协变量变化的函数式。
Security policy of multilevel security DBMS is expressed by many models. One of them is access control model.
多级安全数据库的安全策略需要各种模型来表达，访问控制模型是其中之一。
Based on fuzzy comprehensive discrimination analysis, one level and multilevel discrimination models are founded and inversion problem and its applications are discussed.
基于模糊综合评判理论，建立了一级评判、多级评判的模型，讨论了模糊评判的反问题及其应用。
This paper analyzes and summarizes many classical multilevel security database models, comparing their advantages and disadvantages in detail as well as the availability under different semantics.
本文对众多经典的多级安全数据库模型进行分析总结，详细比较了其优缺点和不同语义下模型的可用性。
For modeling the multilevel few sample or irregular data, the accumulated multilevel statistical models of multivariate full model was built on ordinary multilevel statistical models.
为了解决多层的少样本或无规则数据的建模问题，在一般多层统计模型的基础上提出了多变量整体模式的累加多层统计模型。
Methods Multilevel bivariate models.
方法双变量多水平模型。
The models of technological control theory included: analytical mathematical model, multilevel intelligent control, and simulation experiment on computer and self-adaptation for model parameter.
工艺控制论的模式：解析数学模型，分层递阶智能控制结构，计算机仿真实验和模型参数自适应。
Objective To analyze the partial correlation problems by multilevel bivariate models.
目的探讨利用双变量多水平模型分析多重相关中的部分相关问题。
With the progresses of research and application of Multilevel Secure database, new requirements of Multilevel Secure Models are presented.
随着多级安全数据库研究和实际应用的深入，对多级安全数据模型提出了新的要求。
Results the results of correlation analysis with multilevel bivariate models is same with traditional methods, but the former is more quick and simple.
结果同一资料用双变量多水平模型计算的部分相关系数及其显著性检验结果与传统最小二乘法计算结果相同，但前者更加简便、快速。
This paper discusses the multilevel purchasing-power models in long-term, mid-term, short-term, super short-term power market, and an…
本文讨论了电网公司在长期、中期、短期、超短期电力市场中的多级购电模型，并对各级购电模型之间的联系进行了分析。
This paper discusses the multilevel purchasing-power models in long-term, mid-term, short-term, super short-term power market, and an…
本文讨论了电网公司在长期、中期、短期、超短期电力市场中的多级购电模型，并对各级购电模型之间的联系进行了分析。
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