试论远程培训课件的开发

信息时代,为节省培训费用,提高培训质量,应大力开发远程培训课件。结合工作实际和培训现状,对远程培训课件开发的方向、方法和原则进行了论述。     

城市传统工商地段保护中的问题及对策

通过对城市传统工商地段保护现状的研究,指出个别地段保护过程中出现的环境修复片面化、娱乐休闲泛滥化、开发过程激进化、消费项目同质化问题。针对这些问题提出重建地段记忆、定位文化休闲、遵循差异发展、复原传统业态的解决对策。     

浅析低温地板辐射分户热计量

本文主要对低温地板辐射分户热计量采暖系统进行分析。分析了分户热计量系统存在的问题及住宅采暖设计中可供选择的几种户内热计量系统形式;低温地板辐射采暖系统的节能特性及其适应性;分户热计量系统低温地板辐射采暖系统的设置要求。     

广义非线性轴向运动弦的参数分析

本文的研究对象是服从边界控制的非线性轴向运动弦。弦线的运动方程以及边界条件都是根据Hamilton原理得出的。Laypunov关于运动的稳定性理论,特别是他的"直接法",为非线性系统的稳定性分析提供了一个有效且方便的工具,已经成为近代控制论的一个坚实的基础。     

Properties of Census Dual System Population Size Estimators

We study parametric and non‐parametric approaches for assessing the accuracy and coverage of a population census based on dual system surveys. The two parametric approaches being considered are post‐stratification and logistic regression, which have been or will be implemented for the US Census dual system surveys. We show that the parametric model‐based approaches are generally biased unless the model is correctly specified. We then study a local post‐stratification approach based on a non‐parametric kernel estimate of the Census enumeration functions. We illustrate that the non‐parametric approach avoids the risk of model mis‐specification and is consistent under relatively weak conditions. The performances of these estimators are evaluated numerically via simulation studies and an empirical analysis based on the 2000 US Census post‐enumeration survey data.     

新标准对微型客车外噪声影响的探讨

文章通过对比《汽车加速行驶车外噪声限值及测量方法》(以下简称标准)的新旧标准,讨论新旧标准的不同对微型客车外噪声的影响,探讨在微型客车的前期设计阶段确定测试档位的理论方法,使工程师在设计前期就可以对整车的噪声水平进行预估,从而降低后期改进成本。     

When workplace ostracism leads to burnout: the roles of job self-determination and future time orientation

Abstract

Given that ostracism is a common occurrence in the workplace, scholars and practitioners alike have identified its range of negative effects. This study aims to examine the association between workplace ostracism and burnout level as well as the moderating effects of job self-determination and employees’ future time orientation, using a survey questionnaire. This was completed by a total of 248 employees from a hotel group. We hypothesized that: (a) workplace ostracism was positively associated with burnout; (b) this positive relationship was contingent upon job self-determination such that the relationship was weaker for higher, rather than lower, job self-determination; and (c) the positive relationship was also contingent upon employees’ future time orientation such that the relationship was weaker for employees who have higher, rather than lower future time orientation. Results confirm all three hypotheses.     

异质性厂商合作研发的最优投入水平及其成本分摊机制

在产品差异化的Betrand模型中引入具有需求创造效应的创新,构建一个异质性厂商进行合作研发和价格竞争的两阶段动态博弈模型,研究异质性厂商合作研发的最优研发投入以及研发成本的分摊机制.研究发现,异质性厂商间合作研发的最优研发投入水平和成本分摊比例主要取决于市场容量、自身价格效应、交叉价格效应及研发的需求创造效应;根据自身价格效应、交叉价格效应及研发的需求创造效应确定合作研发成本的分摊比例时,基于Betrand竞争的异质性厂商通过合作研发可以提高其均衡价格、产量和利润.     

基于模糊优选法的核电厂址选择外部人为事件的评价方法

出于安全考虑,核电厂在选址阶段要充分考虑厂址周围的外部人为事件。为此,我国出台了《HAF0105核电厂厂址选择的外部人为事件》,对外部人为事件进行了界定,并提出相应的勘查和评价策略。根据《事件》提出的飞机坠毁、爆炸、危险液体释放的分类,进行定量化评价,然后利用模糊优选法建立模型,将多个厂址进行比对,得到待选厂址在外部人为事件方面的优劣排序。     

解读WEB2．0和SERVICE2．0

近两年出现的Web2.0技术在信息收集、加工,为客户提供个性化的一揽子服务方面具有巨大的潜力,使传统服务模式发生了重大的变革。本文从Web2.0入手,解读最新的Service2.0的理念,并探讨其在现代旅游业中的应用。