Time-based goal chasing method for mixed-model assembly line problem with multiple work stations

In sequencing problems for mixed-model assembly line in JIT production system, the Goal Chasing method (GC) is widely used for parts used leveling goal. The difference in assembly time of each product is not taken into consideration in the Goal Chasing method. Assembly time usually varies with product types. In recent years, the Time-Based Goal Chasing method (TBGC) has been proposed. The advantage of TBGC is to consider the influence of different assembly time of each product and idle time in production period. TBGC, however, has been only applied to single work station problems. In this paper, TBGC is applied to an assembly line problem with multiple work stations. Furthermore, the sequencing method and use of Simulated Annealing (SA) or Local Search (LS) for this problem are proposed.     

Perceptions of efficacy in the use of contemporary film in social work education: An exploratory study

This article discusses the use of contemporary film in social work education, including the theoretical rationale for the inclusion of film from the perspective of narrative and adult learning theory as well as the application of the case method to the use of film. The student viewpoint and perspective is provided through the results of an exploratory research study with 109 Baccalaureate social work students who completed a survey questionnaire following a classroom activity involving a contemporary film. Analysis of the quantitative data and qualitative comments indicates that students believe that film is a beneficial adjunct to textbook and lecture content.     

学科交融与方法创新

探索多学科间的交融已成为当今科学研究的重要问题。从方法入手,以形象思维、逻辑思维和辩证思维所体现的不同思想特点为基础,探讨自然科学、社会科学和人文学科在方法意义上的区别与联系,以期以方法创新为依托实现多学科之间的交融与互动。     

Estimation in multiple linear regression Berkson model for processes with uncorrelated increments

This paper presents a method of estimating the regression and variance parameters in the multiple linear regression Berkson model for a continuous-time stochastic process with uncorrelated increments. Under minimal conditions, we establish (i) the Gauss–Markov theorem and the quadratic mean—as well as the strong consistency of the proposed estimate of the regression parameter and (ii) the weak consistency of the proposed estimate of the variance parameter.     

城市化测度方法研究

采用复合指标法,从经济实力、经济结构、社会发展、基础设施和环境建设五个方面,选取16个与城市化相关的指标,以西安市的数据为基础,利用统计分析的方法构建了西安市城市化测度因子模型,并应用结构方程对该模型进行参数估计,得到了西安市城市化测度结构方程模型,应用该方法可以更准确地对各个城市的城市化发展水平进行度量和对比。     

智能开发测量技术手段的研究

智能开发一直被广泛关注 ,尤其在教育领域 ,但关于智能开发测量技术手段的相关研究仍是空白 ,本文通过对智能开发测量技术手段的类型、特点、以及关于它与元分析等其它因素的关系和中西方关于这一问题的相关研究介绍 ,使人们对此有一个初步的了解。     

比较教育研究方法与方法论之初探

方法与方法论是两个不同的基本范畴,研究方法关注数据的收集和数据的分析,而方法论则是注重研究的构思或理论框架,以及对研究结果的推广与交流。在比较教育领域,研究方法是进行比较教育研究的途径、手段及方式。方法论则是关于比较教育研究方法的理论,相当于对比较教育研究方式的探讨,即比较教育研究的基本原则或态度。比较教育方法论关系着研究方法的选择。科学方法体现了两者的统一。     

试评述迪尔凯姆的《社会学方法的准则》

对迪尔凯姆著作之一《社会学方法的准则》进行了简单评述,介绍了他的社会学方法论,包括他对社会学研究对象的界定及如何去观察和解释研究对象的原则,以及社会学求证的具体方法.     

A tolerance interval approach for assessment of agreement in method comparison studies with repeated measurements

This paper generalizes the tolerance interval approach for assessing agreement between two methods of continuous measurement for repeated measurement data—a common scenario in applications. The repeated measurements may be longitudinal or they may be replicates of the same underlying measurement. Our approach is to first model the data using a mixed model and then construct a relevant asymptotic tolerance interval (or band) for the distribution of appropriately defined differences. We present the methodology in the general context of a mixed model that can incorporate covariates, heteroscedasticity and serial correlation in the errors. Simulation for the no-covariate case shows good small-sample performance of the proposed methodology. For the longitudinal data, we also describe an extension for the case when the observed time profiles are modelled nonparametrically through penalized splines. Two real data applications are presented.