基于谱系聚类分析的集装箱装箱方案优化研究

围绕集装箱装箱优化问题,在聚类分析中利用谱系聚类分析原理,提取包装箱的长、宽、高作为3行1列矩阵,对包装箱进行聚类分析后,得到聚类的个数和各类的长、宽、高尺寸。然后,选取聚类中的任意4种作为方案生成的输入,利用层叠原理、边际方法、递归原理对选取的包装箱进行装箱,以达到占有率较高的目的。同时通过图形显示,对方案生成结果进行简单的一维和二维示意。     

可持续发展的包装设计探析

当代设计已经从绿色设计、生态设计走向可持续设计的新理念趋势。包装设计不仅要考虑设计的美学价值与商业价值,更需要社会价值与生态价值,避免一味的设计竞争带来的资源枯竭。在可持续发展观的引导下,遵循物尽其材、少而精的设计原则,从包装结构减量化、材料生态化、绿色图形化等表现手法进行生态包装的可持续发展,提出了现代包装设计的理想境界,以实现人与社会的协调可持续发展。     

我国集装箱港口体系演进规律研究

从集装箱港口数量、吞吐量、空间布局、市场集中度几个角度,利用赫芬达尔—赫希曼指数来分析1979—2011年我国集装箱港口体系及市场结构的演变,指出1979—1989年是快速分散阶段,为高度集中的寡占市场;1989—2009年是缓慢分散和缓慢集中相互更替的发展阶段,形成了中度集中的寡占市场;2010—2011年延续了分散的趋势,HHI值已经小于1 000,出现了形成非集中竞争市场的趋势。这要求港口企业随着竞争程度的不断增强,需要不断提升质量、建设软环境,提高竞争力,从粗放式发展向精细化、敏捷化发展。     

iSDS: a self-configurable software-defined storage system for enterprise

ABSTRACT

Storage is one of the most important aspects of IT infrastructure for various enterprises. But, enterprises are interested in more than just data storage; they are interested in such things as more reliable data protection, higher performance and reduced resource consumption. Traditional enterprise-grade storage satisfies these requirements at high cost. It is because traditional enterprise-grade storage is usually designed and constructed by customised field-programmable gate array to achieve high-end functionality. However, in this ever-changing environment, enterprises request storage with more flexible deployment and at lower cost. Moreover, the rise of new application fields, such as social media, big data, video streaming service etc., makes operational tasks for administrators more complex. In this article, a new storage system called intelligent software-defined storage (iSDS), based on software-defined storage, is described. More specifically, this approach advocates using software to replace features provided by traditional customised chips. To alleviate the management burden, it also advocates applying machine learning to automatically configure storage to meet dynamic requirements of workloads running on storage. This article focuses on the analysis feature of iSDS cluster by detailing its architecture and design.     

The Influences of Portion Size,Context and Package Characteristics on Snack Food Consumption: Evidence from a U.S. Rolling Cross-Sectional Survey

Using a rolling cross-sectional sample of over 40,000 U.S. snack food consumers during 2004–2010, we build a three-dimensional model to study how portion sizes, consumption context, and package characteristics jointly affect the amount of food consumed. As with prior research, we find that consumption does increase with larger portions. However, this effect diminishes significantly when accounting for the consumption context and packaging characteristics as consumption drivers. Most important is how the snack is presented to consumers at the point of consumption (type, size, and quantity of packages). We also find that snacking on impulse, alone, with a beverage, or while watching television increases the amount consumed, whereas socializing or snacking at home decrease consumption. We test our model over seven snack types (potato chips, crackers, cheese puffs, nuts and seeds, tortilla chips, pretzels, popcorn), and find that our results hold even for products with different cross-category granularity, palatability, and satiety.     

红外光谱法对PE食品包装膜中再生料的快速鉴别

利用红外光谱法鉴别聚乙烯包装膜中是否含有再生料,结构表明,红外光谱分析法作为定性分析,通过和样品标准光谱特征的对比,完全能够鉴别出样品中是否添有再生料。该方法除了测量速度快的优点外,还具有分析成本低、无污染,操作简单方便等特点,在所建立模型的预测范围内,能对样品进行准确、快速的定性分析。     

铁路集装箱运输与社会经济协同发展关系分析

针对我国铁路集装箱运输和社会经济发展的关系,选取了能够表征两者发展的时间序列变量,运用协同学理论,构建了铁路集装箱运输和社会经济发展关系的协同度量化模型,对近18年来两者的综合发展水平、协调度及协同度变化进行了分析。结果表明该模型能客观全面地评价铁路集装箱运输和社会经济耦合因素协同发展水平和状态,表明铁路集装箱运输发展和社会经济增长两者密切相关,二者在互动中循环发展。     

RFID技术在铁路集装箱堆场进出口的应用

利用射频识别技术（RFID）可以实现集装箱箱号及其属性的自动识别,大大提高铁路集装箱运输作业的自动化水平。论文首先分析了目前铁路集装箱运输作业中存在的主要问题及RFID在集装箱运输中的应用现状,提出了铁路集装箱办理站出入口自动管理系统的功能设计并详细规划了在集卡出入口和铁路出入口的应用方案。该方案可改变原有落后低效的工作方式,有效加快集装箱进出堆场的速度,提高管理的自动化水平,实现自动出入管理。     

基于图论的铁路集装箱货场龙门起重机配置的研究

铁路集装箱货场龙门起重机的配置问题,就是在堆场中配置一定数量的龙门起重机,配合集卡为进场的货车提供装卸服务。目前铁路集装箱货场的龙门起重机配置大都根据经验进行配置,缺乏定量模型和方法。针对铁路集装箱货场装卸过程中龙门起重机配置问题,依据图论的有关知识,给出货场装卸作业中确定龙门起重机配置的定量化模型及其算法。