《我的安东妮亚》“回归主题”的多重分析

在薇拉·凯瑟小说《我的安东妮亚》第四卷结尾处,主人公吉姆.波顿出人意料地离弃了他的恋人安东妮亚,20年后又返回西部大草原看望她。吉姆的这一"离"一"回/归",多年来一直是学术界关注的焦点。许多学者纷纷从各种视角,如女性主义、酷儿理论或生态文学解读吉姆的"回归"。但是,综观国内外学者对该作品的研究,笔者发现他们只是从单一视角去研究分析该作品的"回归主题",因此,本文将从精神分析、文化研究、女性主义和生态批评等视角对该主题进行多重分析。     

A Bayesian hierarchical approach to dual response surface modelling

In modern quality engineering, dual response surface methodology is a powerful tool to model an industrial process by using both the mean and the standard deviation of the measurements as the responses. The least squares method in regression is often used to estimate the coefficients in the mean and standard deviation models, and various decision criteria are proposed by researchers to find the optimal conditions. Based on the inherent hierarchical structure of the dual response problems, we propose a Bayesian hierarchical approach to model dual response surfaces. Such an approach is compared with two frequentist least squares methods by using two real data sets and simulated data.     

模糊限制语与大学英语精读教学

大学英语精读课文中存在大量的模糊限制语，对学生理解文章起着非常重要的作用。从模糊限制语的概念与分类着手，分析模糊限制语在大学英语精读课文中的语用功能，旨在通过这些分析使教师及学生认识到模糊限制语在准确理解精读课文中的作用，以此体会课文的内涵，从而提高学生的阅读能力。     

Joint modified block replacement and production/inventory control policy for a failure-prone manufacturing cell

This paper considers a joint preventive maintenance (PM) and production/inventory control policy of an unreliable single machine, mono-product manufacturing cell with stochastic non-negligible corrective and preventive delays. The production/inventory control policy, which is based on the hedging point policy (HPP), consists in building and maintaining a safety stock of finished products in order to respond to demand and to avoid shortages during maintenance actions. Without considering the impact of preventive and corrective actions on the overall performance of the production system, most authors working in the reliability and maintainability domains confirm that the age-based preventive maintenance policy (ARP) outperforms the classical block-replacement policy (BRP). In order to reduce wastage incurred by the classical BRP, we consider a modified block replacement policy (MBRP), which consists in canceling a preventive maintenance action if the time elapsed since the last maintenance action exceeds a specified time threshold. The main objective of this paper is to determine the joint optimal policy that minimizes the overall cost, which is composed of corrective and preventive maintenance costs as well as inventory holding and backlog costs. A simulation model mimicking the dynamic and stochastic behavior of the manufacturing cell, based on more realistic considerations of the real behavior of industrial manufacturing cells, is proposed. Based on simulation results, the joint optimal MBRP/HPP parameters are obtained through a numerical approach that combines design of experiment, analysis of variance and response surface methodologies. The joint optimal MBRP/HPP policy is compared to classical joint ARP/HPP and BRP/HPP optimal policies, and the results show that the proposed MBRP/HPP outperforms the latter. Sensitivity analyses are also carried out in order to confirm the superiority of the proposed MBRP/HPP, and it is observed that for practitioners, the proposed joint MBRP/HPP offers not only cost savings, but is also easy to manage, as compared to the ARP/HPP policy.     

外汇市场冲击与国内资本市场波动的关联机理解析

运用三元VAR-GARCH(1,1)-Asymmetric-BEKK模型,解析了汇市、股市和债市间的关联机制。结果显示,汇市对股市和债市有显著的均值与波动溢出,而股市和债市对汇市仅有波动溢出,且汇市对股市的溢出效应大于对债市的溢出。基于新闻冲击曲面的分析揭示了资本市场对汇市冲击呈明显的非对称性。为此,政府应将金融市场开放度的扩大与资本流动的监管相结合,构建针对资本市场风险的多层次测度与监控体系,并完善资本市场的制度架构,增强信息披露的有效性。     

英语报刊阅读课的内容特点与选材实践

英语报刊阅读是一种提升英语综合能力的有效方式,阅读的材料在语言、修辞、篇章等几个方面都有一定的特点,根据这些特点,结合学生的兴趣,在开设英语报刊阅读课程时要选择有利的时机和有意义的材料。     

语篇分析在高职英语阅读教学中的应用实践

阅读是获取信息和培养语感的重要途径之一。本文以语篇分析理论为指导,通过分析高职院校学生英语阅读中存在的问题,探讨了教师如何在英语阅读教学中运用语篇分析帮助学生对文章进行宏观和微观分析,从而提高其英语阅读能力。     

考虑油膜结合面的机床动态特性分析

考虑油膜结合面特性的机床主运动板的动态特性分析,对油膜的刚度分布情况作了3种假设,将假设得到的机床动态特性与不考虑油膜的特性进行比较,并用实验测试数据进行验证正确性。结果表明考虑油膜即结合面的特性对模态分析结果产生不可忽略的影响,其影响效果从第5阶模态振型开始表现明显;油膜刚度成分布幂函数最接近实验测试结果,因此可以看做油膜工作状态下分布的简化函数。     

英语语法教学中显性意义的基础性地位

近年来,在英语语法教学中,语法形式在不同语境中的隐性意义被高度关注,这弥补了以往语法教学只注重形式和其显性意义的不足。但隐性意义的推理和理解离不开显性意义的掌握,因为隐性意义的获得,依赖于显性意义和语境的结合。简要介绍语法形式显性意义和隐性意义的概念,并通过隐性意义推理过程中基本因素的分析,揭示显性意义的基础性地位,强...     

论高职日语泛读课上学生批判性思维的培养

论述了批判性思维的重要性,分析了批判性思维的内涵,然后分析目前高校批判性思维培养缺失的原因,结合高职日语泛读课程的教学实例探讨培养批判性思维的有效途径。