国外能源公司节能减排的经验及启示

通过对埃克森美孚公司、BP和壳牌公司在节能减排方面的做法进行调研,总结了这3个公司所采取的措施,结合国内能源企业的现状,提出了相关的一些经验总结和启示。文章认为转变观念、推进技术进步和在关键环节进行控制是实现节能减排最有利的方式。     

The who,why and where of Japanese manufacturing investment in the UK

This paper analyses the recent growth of Japanese manufacturing investment in the UK, focusing upon the type of companies that are being created.     

A column generation-based approach to solve the preference scheduling problem for nurses with downgrading

The demand for nurses in virtually all western countries has been outpacing the supply for more than a decade. The situation is now at the point where the rules for good practice are being stretched to the limit and patient care is in jeopardy. The purpose of this paper is to present several ideas for maximizing the use of the available staff and to quantify the resultant benefits. Two approaches are investigated for substituting nurses with higher level skills for those with lower level skills when there is sufficient idle time to do so. Idle time is usually due to scheduling constraints and contractual agreements that prevent a hospital from arbitrarily assigning nurses to shifts over the week.When the substitution is skill-related, as it is here, it is often called downgrading. The models that we develop are for preference scheduling, which means that individual preferences are taken into account when constructing monthly rosters. There are several reasons for doing this in today's environment, the most important is the need to boost staff morale and increase retention. The problem is modeled as an integer program and solved with a column generation technique that relies on intelligent heuristics for identifying good candidate schedules. The computations show that high quality solutions, as measured by the reduction in the need for non-unit nurses as well as the degree to which preferences are satisfied, can usually be obtained in a matter of minutes.     

浅谈建筑幕墙工程接缝处理的技术要求和方法

本文针对建筑幕墙可能出现的问题,提出了建设性的建议。在幕墙的构造中,楼面和吊顶与幕墙的连接是一个非常重要的问题,此处经常留有缝隙造成室内上下空间保温和隔声出现问题,因此,幕墙的分格将影响楼面和吊顶与幕墙的连接。装修设计时,应在此处设置横框,使楼面和吊顶的装修与其连接,并做保温隔热处理。     

胜任力模型在物流企业中的应用研究

阐明了胜任力的基本概念，论述了构建物流企业管理人员胜任力模型的思路，以及如何运用胜任力这一全新的概念来选拔、评价以及培养物流企业的管理人才。     

与投资者沟通，要找准对象

许多企业高管在与那些大可不必理会的投资者的沟通上花费了太多时间。尤其是首席执行官和首席财务官.他们经常在并不清楚哪些投资者真正重要的情况下,投入过多时间与投资者进行--对--会谈,出席投资会议。以及参与其他股东沟通活动—1。     

AD734模拟乘法器的原理与应用

AD734是一款高速精密四象限模拟乘法器,典型静态满量程误差仅为0.1%,它提供对分母的直接精确控制,这是模拟乘法器的一个新特点。本文主要介绍了AD734的内部结构框图,分母控制电路,最后给出了AD734应用于乘法运算中的电路图。     

Employment,Inequality and the UK National Minimum Wage over the Medium‐Term*

We assess the impact of the national minimum wage (NMW) on employment and inequality in the UK over the decade since its introduction. We evaluate its effects in each year, using an incremental differences‐in‐differences (IDiD) estimator. Identification is based on variation in the bite of the NMW across local labour markets and the different sized year on year up‐ratings. We find that an increased bite of the NMW is associated with falls in lower tail wage inequality. While the average employment effect over the entire period is broadly neutral, there are small but significant positive NMW effects from 2003 onwards.     

基于批发价格契约的供应链质量成本分担合同研究

考虑存在产品质量失误的情况下,在由一个风险中性供应商和一个风险中性购买商所组成的二级供应链中,运用委托代理的方法,通过引入批发价格为供应商产品质量水平的函数,分别求解在三种信息不对称情况下的最优内、外部损失成本分摊系数,设计出最优的质量成本分担合同,从而使得供求双方的行动同信息对称下的供应链最优解一致.     

中国地区经济σ-收敛的空间计量实证分析

本文采用空间经济计量方法,使用25年人均GDP数据研究中国28个省区经济发展的σ-收敛情况。研究结果表明,考虑到省区间相关性,特别是经济间的相关性后,可显著纠正采用传统方法进行σ-收敛研究产生的误差。修正后的σ-收敛值表明,随着中国经济发展,尤其是近几年省区间经济表现出仃一收敛的趋势。