A two phases queueing system with Bernoulli vacation schedule under multiple vacation policy

This paper deals with a single server Poisson arrival queue with two phases of heterogeneous service along with a Bernoulli schedule vacation model, where after two successive phases service the server either goes for a vacation with probability p (0≤p≤1) or may continue to serve the next unit, if any, with probability q(=1−p). Further the concept of multiple vacation policy is also introduced here. We obtained the queue size distributions at a departure epoch and at a random epoch, Laplace Stieltjes Transform of the waiting time distribution and busy period distribution along with some mean performance measures. Finally we discuss some statistical inference related issues.     

关于构建有实效的课堂教学评价体系的思考

课堂教学应是以提高人的创新教育素质、塑造现代创新人格为目标的教学 ,因此 ,课堂教学的评估尤为重要。本文对构建有实效的课堂教学评价体系进行了探索 ,对其操作基本原则、评估内容、评估人员组成及操作程序作了具体的介绍 ,同时分析了在课堂教学评估中应注意的问题     

一种新型的教学方式—Web教学

Web教学是一种新型的教学方式,在发达国家已开始走向实用。然而在我国的发展却相对来说比较滞后,至今仍处于试验阶段,本文以四个部分来讨论Web教学的方式和方法。第一部分对Web教学的特点进行了分析;第二部分对Web上如何组织、制作和使用课件作了一般的说明;第三部分则对Web教学过程中教师、学生和网页设计三个基本要素进行了分析;最后一部分提出了在进行Web教学时应注意的一些问题。     

城市游憩空间的政府管理机构整合方案探索

城市游憩空间关联于多个政府职能部门,因此只能获得破碎化的公共服务,导致大部分城市的游憩空间既不能很好地满足人的发展,也不能很好地满足旅游发展,整合分散在各部门的管理职能显得非常必要。为了探索整合方案,本文从价值取向（旅游发展取向与人的发展取向）、组织形式（集权－命令式与分权－协商式）展开分析,由此推导出四种可能的整合方案：一是相关职能划归旅游局,二是成立旅游局牵头的部际协商委员会,三是相关职能划归文化局,四是成立文化局牵头的部际协商委员会。各个城市政府可以根据自身的实际状况做出选择：闲暇旅游驱动型旅游城市可以选择第1种方案;商务旅游驱动型旅游城市可以选择第2种方案;非旅游型中小城市可以选择第3种方案;非旅游型大城市可以选择第4种方案。     

论英语视听说多媒体教学的跨文化交际能力培养

跨文化交际能力是衡量学生英语能力的标准之一,学生跨文化交际能力的培养正日益成为英语视听说课程的教学重点.在多媒体教学环境下,英语视听说课程的教学需要从培养学生的语言、语用和文化等三个方面的能力着手,在提高学生听说能力的同时培养学生的跨文化交际能力,以满足社会对英语应用型人才的需求.     

网络自主学习与大学英语口语课堂教学

传统的课堂口语教学存在许多弊端。网络自主学习系统极大地弥补了课堂口语教学的缺憾。然而网络自主学习系统并不能完全取代教师的角色,课堂口语教学也并非一无是处。本文中的教学对比实验表明：将网络自主学习与课堂教学有机相结合才能达到双赢的目的。本文还具体阐述了如何将网络自主学习与课堂口语教学进行完美结合。     

A robust ranking method extending ELECTRE III to hierarchy of interacting criteria,imprecise weights and stochastic analysis

A great majority of methods designed for Multiple Criteria Decision Aiding (MCDA) assume that all assessment criteria are considered at the same level, however, decision problems encountered in practice often impose a hierarchical structure of criteria. The hierarchy helps to decompose complex decision problems into smaller and manageable subtasks, and thus, it is very attractive for computational efficiency and explanatory purposes. To handle the hierarchy of criteria in MCDA, a methodology called Multiple Criteria Hierarchy Process (MCHP), has been recently proposed. MCHP permits to consider preference relations with respect to a subset of criteria at any level of the hierarchy. Here, we propose to apply MCHP to the ELECTRE III ranking method adapted to handle three types of interaction effects between criteria: mutual-weakening, mutual-strengthening and antagonistic effect. We also involve in MCHP an imprecise elicitation of criteria weights, generalizing a technique called the SRF method. In order to explore the plurality of rankings obtained by the ELECTRE III method for possible sets of criteria weights, we apply the Stochastic Multiobjective Acceptability Analysis (SMAA) that permits to draw robust conclusions in terms of rankings and preference relations at each level of the hierarchy of criteria. The novelty of the whole methodology consists of a joint consideration of hierarchical assessments of alternatives performances on interacting criteria, imprecise criteria weights, and robust analysis of ranking recommendations resulting from ELECTRE III. An example regarding the multiple criteria ranking of some European universities will show how to apply the proposed methodology on a decision problem.     

Internet-Based Instruction as an Innovative Approach to Managing Prerequisite Curriculum Content in a Graduate Social Work Program

SUMMARY

Students admitted to graduate social work programs possess varying levels of understanding of prerequisite curriculum content. Compounding this situation is that social work educators teaching at the foundation level are now required to provide an expanded array of curriculum content in their courses. This article conceptualizes an Internet-Based orientation course as a unique tool for preparing students with prerequisite curriculum content necessary for successful integration and mastery of a graduate curriculum. Several steps are presented in the design and development of the course: obtaining support and approval, identifying and collecting data, designing and developing course components, and implementing and evaluating the course. Although course development occurs within a social work education setting, findings from this Internet-Based orientation course are applicable to other educational and human service settings.     

构建有效的英语课堂提问策略

本文通过对英语课堂提问的现状调查，对提问中出现的主要问题及对应的策略进行探讨。     

接受美学视阈中的计算机辅助教学

接受美学理论十分重视本文一读者关系，特别强调读者在本文意义解读与重构过程中的主体地位。网络环境下的大学英语教学的研究视点也从教师主体转向了学生主体，把学生视为几个教学常量中的主导因子，关注学生主体身份的构建。在此意义上，接受美学理论对新环境下的大学英语教学有很强的解释力。