对《物流术语》中托盘概念的商榷

托盘是物流中使用广泛的集装单元器具,在物流系统中发挥着重要作用。本文从我国物流生产中使用的托盘类别介绍入手,分析了在我国广泛使用的五种托盘的结构特点、使用场合和各自优缺点,主要分析和研究了《物流术语》中托盘概念描述的准确之处和欠缺之处,对于物流行业标准提出了质疑,本文必将对进一步准确界定什么是托盘起到积极的推进作用。     

灌片节水配套改造工程的必要性和可行性研究

文章以4个灌片为例,探讨了灌片节水配套改造工程的必要性和可行性。通过对项目区渠系水利用系数极低、实灌面积严重缩减以及水资源供需平衡进行分析,得出灌片节水配套改造工程的必要性;通过对典型工程的实际设计,得出灌片节水配套改造工程的可行性。     

德国双元制职业教育模式探析与对比

本文主要研究德国双元制职业教育模式,从培养目标与学习形式、专业设置、教学改革和就业情况等方面分析了该教育模式的特点。并通过政、校、企合作办学、课程改革、综合素质培养以及师资队伍等四个方面对比了中德两国在职业教育上的差异。     

我国危险品物流管理对策研究

通过对我国危险品物流的现状分析,指出了加强危险品物流管理的必要性,并阐述了加强危险品物流管理的意义。在对国外危险品物流管理方法进行总结的基础上,分析了我国政府和危险品物流企业在危险品物流管理中的作用和相互关系,并提出了加强危险品物流管理的一些具体对策和措施。     

产学研相结合--新时期我国企业科技创新持续发展途径

本文列举了我国企业与高校、科研院所的科技力量分布不平衡的情况;介绍了科学研究的两种模式,产学研相结合开展技术创新,就是对这两种模式的具体运用,并深入分析了企业-高校-科研院所产学研相结合持续发展的作用机制、产学研相结合的三种形式;提出了社会各界对产学研相结合的持续发展应给予的政策支持。     

连锁超市生鲜加工配送中心的物流绩效评价

分析了连锁超市生鲜加工配送中心的定位,建立了连锁超市生鲜加工配送中心物流绩效评价体系;并选取模糊综合评价法对其进行综合评价。     

论企业物流外包

企业物流外包成为企业、媒体和物流业界的时尚话题,但其实施过程中存在诸多问题。文章从企业实际经营需要的微观视角出发,时企业物流外包作用与风险进行全面剖析,为企业物流外包决策提供更加全面视角。     

Some general results for moments in bivariate distributions

The purpose of this paper is to present a closed formula to compute the moments of a general function from the knowledge of its bivariate survival function. The result is derived by utilizing an integration by parts formula for two variables, which is not readily available in the literature. Many of the existing results are obtained as special cases. Finally, two examples are presented to illustrate the results. In both the examples, mixed moments as well as moments for the series system and parallel system are obtained. The integration by parts formula in two variables, derived here, is of interest in its own right and we hope that it will be useful in other investigations. The integration by parts formula in two variables is derived as a special case of a general formula in n variables.     

Supplier qualification for high-value goods and services in Nigeria: a comparison of qualified and non-qualified suppliers

This study set out to understand the capabilities of suppliers of high-value products and services in Nigeria. Supplier capability data were collected from almost 500 potential suppliers across 28 product categories. The findings indicate that only a small minority of potential suppliers achieved the required levels of performance and that very few companies have suitable operational capabilities or corporate citizenship behaviour. Furthermore, significant differences were found between service suppliers and product suppliers with regard to performance. The findings suggest that the majority of suppliers of products and services in Nigeria need to improve their operational capabilities and corporate citizenship behaviours, or else risk losing their ability to compete in a changing market place with new barriers to entry.     

Sim-heuristics low-carbon technologies’ selection framework for reducing costs and carbon emissions of heavy goods vehicles

ABSTRACT

UK logistics fleets face increasing competitive pressures due to volatile fuel prices and the small profit margins in the industry. By reducing fuel consumption, operational costs and carbon emissions can be reduced. While there are a number of technologies that can reduce fuel consumption, it is often difficult for logistics companies to identify which would be the most beneficial to adopt over the medium and long terms. With a myriad of possible technology combinations, optimising the vehicle specification for specific duty cycles requires a robust decision-making framework. This paper combines simulated truck and delivery routes with a metaheuristic evolutionary algorithm to select the optimal combination of low-carbon technologies that minimise the greenhouse gas emissions of long-haul heavy goods vehicles during their lifetime cost. The framework presented is applicable to other vehicles, including road haulage, waste collection fleets and buses by using tailored parameters in the heuristics model.