回收利用包装资源的意义

通过对各种包装废弃物的有效回收与综合利用的有利之处进行分析，充分说明搞好包装废弃物的分类回收利用是人类自我生存的客观要求和需要，是具有远见卓识之举。     

高校新型快递包装废弃物回收模式的研究

近年来,快递包装废弃物一直按照生活垃圾进行处置,大部分人并未充分认识到快递包装中可回收利用的成分。针对此现状,本文选择高校学生这一群体为研究对象,基于之前学者对于高校快递包装废弃物回收利用现状的研究,旨在总结之前研究的优势并提出新型的快递包装回收模式,为高校建立完善的快递包装回收流程提供建议。     

发达国家包装回收利用形成产业体系

近些年来，与日俱增的包装垃圾给环境保护带来了相当大的压力。据统计，上世纪90年代城市固体垃圾废弃物排放量日益增加。1995年美国达1．5亿吨，其中包装废弃物占城市废弃物体积的50％，重量的33％，已成为各国政府颇感头痛的问题。一些发达国家迫于资源危机和防治污染的双重压力，纷纷开发“绿色包装”。目前包装材料的再回收利用已在欧美发达国家形成拳头产业体系，其成功经验和做法值得我国借鉴。     

广州大学城废弃物回收处理的现状及其问题分析

界定了广州大学城废弃物基本概念，分析了广州大学城废弃物类型和特性。通过对广州大学城的深入调查，分析了广州大学城废弃物回收处理的现状，并分析发现，其存在缺乏现代物流理念和对逆向物流的认识、各利益主体协作不充分和废弃物回收网络不健全等三个方面的问题。     

基于连锁超市的包装废弃物回收模型

阐述了包装废弃物回收的意义,基于资源整合与共享的理论思想,提出连锁超市的回收模式,即基于连锁超市的配送体系,在连锁超市合理选址的基础上,依超市建立回收站点,集中回收可再利用的包装;充分利用配送中心的网络资源,建立以达到降低物流成本,实现资源再利用为目的的模型.最后用模糊综合评价法对其进行了评价.     

农药包装废弃物回收：支持态度与模式选择

回收处理是解决农药包装废弃物污染的有效办法。基于此,文章从农户角度对农药包装废弃物的处理现状、回收支持态度以及回收模式选择进行了研究。研究表明:"顺手丢弃"和"扔垃圾场"是目前中国农民处理农药包装废弃物最常用的两种方式;超过90%的农民表示支持农药包装废弃物回收工作,他们的态度主要受到农药认知水平的影响;短期内应以政府主导型回收模式为主,长期则应该根据农户的农药认知和回收态度情况,逐步建立农药包装废弃物回收市场。     

高校快递包装废弃物的回收与利用

随着电子商务的快速发展,快递行业异军突起,其产生的包装废弃物给社会环境也带来了严重的影响。大学生作为网络消费的重要群体,其网购带来的快递业务量巨大,因此,解决高校快递包装废弃物的回收与利用问题也是实现快递行业绿色、可持续发展的一个关键。本文着眼于快递包装材料的循环利用,以福州大学旗山校区为例,运用网络问卷、实地调研、现场访谈、等多种手段对快递包装材料回收处理现状展开调研,从大学生、快递公司、各级代理点、网店店主、学校回收站、快递包装生产制造商等环节回溯快递包装材料的处理现状。调研结果表明:大学生网购市场活跃,对快递包装废弃物产生的负面影响认识较深;在校内建立大学生自主运转的非营利性废弃物回收站具有可行性。     

基于遗传算法的包装废弃物回收逆向供应链网络构建研究

随着人们对生态环保和经济可持续发展的进一步认识,面对可再利用包装废弃物资源的浪费和对环境造成的污染,越来越多的人们意识到包装废弃物回收的重要性。文章分析了国内包装废弃物回收的现状,提出了包装废弃物回收的逆向供应链网络模型,利用遗传算法,对模型进行了优化求解,并给出了算例。     

快递包装回收再利用的现状与问题

快递包装回收再利用是治理快递包装污染的重要举措.采用文献研究法、 实地访谈法和问卷调查法,分别对快递包装的回收再利用的政府治理、 企业治理和消费者认知现状进行了调研,归纳出目前快递包装回收再利用存在的主要问题.为后续进一步研究快递包装污染治理奠定基础.     

A mechanism for package allocation problems with gross substitutes

We consider a package allocation problem in which a seller owns many indivisible objects and the rest of the agents, buyers, are interested in packages of these objects. Buyers’ valuations satisfy monotonicity and the gross substitutes condition (Kelso and Crawford, 1982). The aim of this paper is to analyze the following mechanism: simultaneously, each buyer requests to the seller a package by announcing how much he would pay for it; once buyers have played, the seller decides the final assignment of packages and the prices, as long as this assignment makes no buyer worse off than with his initial request. The subgame perfect equilibrium outcomes of the mechanism correspond to the Vickrey outcome (Vickrey, 1961) of the market.     

商品配送在连锁经营中值得关注的几个问题

论述了连锁经营企业如何抓好商品配送中的集货，理货，配货等重点工作，以及做好配送方式与配送工艺流程的组合方式选择等．     

铜矿工业废水回用研究

江西某铜矿工业废水产生量大、成分复杂,Cu2+、Pb2+、Zn2+、Cd2+等重金属含量超标,对周围环境污染日益加剧,矿山废水治理与利用势在必行。文章对矿山工业废水直接回用进行了研究,废水的直接回用有着明显的经济效益和环境效益。     

浅谈技术的发展对包装设计的影响

现代科学发展的新成就已经深深地影响和融入了现代包装设计中,新技术、新材料的应用成为包装设计的重要特征。以电脑为代表的飞速发展与普及,将最先进的电脑技术应用于现代艺术设计之中,设计的技巧以及方式得到了翻天覆地的革新。纸制制作工艺的发展,现代印刷工艺的革新,使得现代包装发展到了崭新的阶段。     

Structural time series analysis and modelling package: A review

This package performs specialized tasks related to specification, estimation, prediction and diagnostic checking in the context of a particular class of unobserved-components models. It is menu-driven and easy to use. Although the present (first) release suffers from a number of limitations, omissions and bugs, it is nevertheless a useful tool in the hands of a knowledgeable user.     

城市生态系统与生态城市的基本理论问题

本文介绍了城市生态系统的特点、功能及生态城市的概念 ,分析了生态城市的规划原则及生态城市与可持续发展的关系。     

A survey on pickup and delivery problems

This paper is the second part of a comprehensive survey on routing problems involving pickups and deliveries. Basically, two problem classes can be distinguished. The first part dealt with the transportation of goods from the depot to linehaul customers and from backhaul customers to the depot. The second part now considers all those problems where goods are transported between pickup and delivery locations, denoted as Vehicle Routing Problems with Pickups and Deliveries (VRPPD). These are the Pickup and Delivery Vehicle Routing Problem (PDVRP – unpaired pickup and delivery points), the classical Pickup and Delivery Problem (PDP – paired pickup and delivery points), and the Dial-A-Ride Problem (DARP – passenger transportation between paired pickup and delivery points and user inconvenience taken into consideration). Single as well as multi vehicle mathematical problem formulations for all three VRPPD types are given, and the respective exact, heuristic, and metaheuristic solution methods are discussed.      

关于会计监督问题及建议的探讨

有效发挥会计监督职能,不仅可以维护财经纪律和社会经济秩序,对健全会计基础工作、建立规范的会计工作秩序也能起到重要的作用。文章分析了会计监督存在的一些问题及相应解决措施。     

A survey on pickup and delivery problems

This paper is the first part of a comprehensive survey on pickup and delivery problems. Basically, two problem classes can be distinguished. The first class, discussed in this paper, deals with the transportation of goods from the depot to linehaul customers and from backhaul customers to the depot. This class is denoted as Vehicle Routing Problems with Backhauls (VRPB). Four subtypes can be considered, namely the Vehicle Routing Problem with Clustered Backhauls (VRPCB – all linehauls before backhauls), the Vehicle Routing Problem with Mixed linehauls and Backhauls (VRPMB – any sequence of linehauls and backhauls permitted), the Vehicle Routing Problem with Divisible Delivery and Pickup (VRPDDP – customers demanding delivery and pickup service can be visited twice), and the Vehicle Routing Problem with Simultaneous Delivery and Pickup (VRPSDP – customers demanding both services have to be visited exactly once). The second class, dealt with in the second part of this survey, refers to all those problems where goods are transported between pickup and delivery locations. These are the Pickup and Delivery Vehicle Routing Problem (PDVRP – unpaired pickup and delivery points), the classical Pickup and Delivery Problem (PDP – paired pickup and delivery points), and the Dial-A-Ride Problem (DARP – passenger transportation between paired pickup and delivery points and user inconvenience taken into consideration). Single as well as multi vehicle versions of the mathematical problem formulations are given for all four VRPB types, the corresponding exact, heuristic, and metaheuristic solution methods are discussed.