查询词典 variables

Additionally, we examine the life style and demographic data, and take the AIO lifestyle variables as the categorization basis to divide consumers into different consumer groups.

此外，本研究根据生活型态与人口统计资料，并且以AIO生活型态变数当做分类基准将消费者分群。

AIO life style variables are employed for market segmentation; the research subjects are 57,298 college students in Kaohsiung; and this empirical study applies factor analysis, cluster analysis, chi-square test, discriminant analysis, ANOVA and Scheffe test.

以AIO生活型态变做为市场区隔基础、研究对象为大高雄地区大学日间部学生57，928人，用因素分析、集群分析、区别分析、卡方检定、变分析及雪费检定等统计方法进实证研究。

The process consists of:First of all, basing on the statistical data through a market survey, this paper uses the methods of principal component analysis and K-means clustering to analyze the AIO lifestyle variables and divides college notebook market into social-oriented consumers market, economy - oriented market, self-oriented consumer market and fashion-oriented consumer market from the perspective of lifestyle;In the following, make analysis of the differences on the assessment of the product attributes in different segment markets to support the marketing strategies for Lenovo;Finally, in accordance with the college segment of the consumer lifestyle preferences and product characteristics, choose the differentiation strategy and gives recommendations on marketing mix strategy for Lenovo.

主要工作如下：首先，本文通过市场调查获取数据，以AIO生活方式变量作为集群划分的基础，通过主成份分析法和K-means聚类，将高校笔记本市场从生活方式的角度细分为社交导向型消费者市场、经济导向型消费者市场、自我导向型消费者市场和时尚导向型消费者市场；接着，本文研究了按生活方式划分的各高校消费者集群在产品属性评估上的差异，从而得出各细分市场的特征，为营销战略的制定提供支持；最后，根据各高校细分市场消费者的生活方式上的特点和产品偏好，实施差异化战略，在各细分市场给联想笔记本提出市场营销组合策略方面的建议

The object of the study is consumers in Taipei city, and the study used AIO life style scale as the base of market segmentation. Data was collected by using questionnaires based on innovation adoption process, product attributes of portable multimedia player, and demographic variables and analyzed by applying factor analysis, cluster analysis, analysis-of-variance, and chi-square test.

本研究以台北市消费者为研究对象，以AIO生活型态量表作为区隔基础，利用问卷调查方式搜集资料，透过创新采用过程、行动影音播放器之产品属性、人口统计变数作为投入变数，并使用因素分析、集群分析、变异数分析、卡方检定等方法来分析所得之实证资料。

The results were analyzed by pluralistic regression analysis to judge the relationship between variable ALB and other variables.

采用多元回归分析，判断其他各变量与应变量ALB间的关系。

An algebraic expression is a combinaation of constants and variables.

3\一个代数表达式是由常量和变量结合而成的。

An algebraic expression consisting of one or more summed terms, each term consisting of a constant multiplier and one or more variables raised to integral powers.

多项式包含一个或更多总项的代数表达法，每一项都含有一个常乘数和一个或更多整幂的变量。

A generalized mathematical model was developed to describe the distribution of over-potential.Dimensionless variables μ and ω that characterize the polarization and influence of side electrode reaction in the system,were derived from modeling.Adomian's decomposition methodADM）was used to solve the nonlinear differential equation of the model to obtain an approximate analytical solution,which was in the form of algebraic expressions of infinite power series.By the solution,the relationship between over-potential distribution and average selectivity could be easily calculated without solving the nonlinear model time and again.

建立了描述超电势分布的普遍化数学模型，归纳出表征电极极化和副反应影响的量纲1数μ和ω，并用ADM（Adomian's decomposition method）对该非线性微分方程模型求解；所获得的逼近解代数表达式，可方便地计算不同参数下超电势分布对平均选择性的影响，而毋需反复求解模型微分方程。

Chapter 4 presents five design criteria of S-boxes of block ciphers, develops a method of constructing large S-box by use of algebraic group operation, proves the balance property of these large S-box, tests the strict avalanche and independence of avalanche variables properties of S-boxes in NEA cipher, analyses the nonlinearity and best linear approximation of the S-box, and finally defines the differential of input/output of S-boxes of this cipher and analyses the distribution of them.

第二部分即第三章，提出了一种新的分组密码类NEA(NEA-4A，NEA-8A，NEA-4B，NEA-8B)，完整地描述了该密码类的加解密过程和密钥协议；证明了NEA-4B和NEA-8B的完全对合性和没有不动点的性质；分析了该密码类的安全特征；具体地介绍了实现该类密码的途径；给出了NEA-4A的计算机C语言程序和样本数据。

Main contributions and achievements are as follows:A general non-equilibrium rigorous model for RDP is developed in this thesis. Based on the pseudo-homogenous assumption, two main factors reaction and separation are de-coupled, and an RDP model with the same format as that for a traditional distillation process is established. To solve the model with a large number of algebraic equations, modified M-K equations with tri-diagonal matrix form are developed based on the improved Separation Efficiency Functions, which greatly increases the iteration efficiency. This thesis also develops a general reactive distillation dynamic model. Through splitting of the differential variables based on SEFS, large-scaled differential algebraic equations can be solved with the improved Gear's algorithm which makes the dynamic model suitable for the on-line application. A simulation platform for the control loop design and evaluation of RDP by introducing control system equations into the dynamic model is also developed.A lactic acid purification pilot-scale RDP is investigated.

论文对热点问题——反应精馏过程的建模与优化控制相关技术进行了深入的研究，取得了一系列成果：1、建立了反应精馏过程机理模型，基于拟均相假设，将反应和分离过程进行解耦，推导出反应精馏过程的非平衡级稳态模型和动态模型，通过引入推广的分离效率函数，对模型变量进行了合理划分，显著提高了模型求解效率；将动态模型和控制系统方程结合，建立了反应精馏过程控制系统研究的辅助工具。2、全面分析了乳酸提纯反应精馏新工艺试验装置，利用本文建立的过程机理模型，对该试验装置进行了稳态和动态性能分析及水力学核算；设计和分析了单边质量控制方案，比较了间接和直接物料平衡控制两种方案的控制性能。

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。