Risk Pooling Advantages of Manufacturing Network Configuration

The decision of a firm to set up a plant network is influenced by a number of factors, including demand fluctuations across its portfolio of products, logistics costs, and service level requirements. Product plant networks offer the benefits of consolidated production and reduced transshipment costs; on the other hand, process plant networks allow intensive dedication to process expertise and economies of scale. In this paper, we show that, aside from these benefits, process plant networks offer significant risk pooling advantages under a wide range of conditions. We analytically demonstrate that, even without accounting for economies of scale advantages, firms may prefer the process plant network configuration due to the risk pooling benefits offered.     

A configurational approach to transnational families: Who and where is one's family in the case of mobile older adults?

This article introduces a novel transnational family configuration (TNFC) approach to study the diversity of family forms across kinship and geographical boundaries. Integrating theoretical insights from family sociology and transnational family research, it examines contemporary families as personal networks that encompass both subjectively identified and potentially transnationally dispersed kin and non-kin members. Drawing on original survey data and in-depth interviews with adults aged 55+ living in Switzerland, it compares migrants’ and non-migrants’ personal family networks. The results indicate that these networks are both diverse and transnational. Although there is a strong correlation between transnationality and migration background, other life-course factors also contribute to the development of transnational family networks beyond the scope of migrant ‘exceptionalism’. By advocating the adoption of a TNFC approach to the study of contemporary families, in diverse population groups and various cultural contexts, this study paves the way for future research in this area.     

铁路客运分段能力配置策略研究

铁路客运分段能力配置策略能够针对季节客流特征,在春节等节假日客运需求非常巨大、平时客流明显减少的情况下,最大程度地满足旅客出行需求。基于线性回归方程的铁路客运需求预测模型,能够科学合理、有效地配置客运能力。运用MATLAB软件,结合南京站旅客运输数据,通过实证分析研究,验证优化模型在阶段性运能配置方面的期望效应。     

基于WinCC和S7-200 PLC的转轮除湿多点温湿度监测系统

针对目前转轮除湿研究中,温湿度测量以干球温度、湿球温度测量为主,存在测量过程复杂,误差大等缺点,提出了基于WinCC和S7 -200PLC的转轮除湿多点温湿度监测系统。以转轮除湿机中处理风和再生风进出口及环境的温湿度作为研究对象,研华工控机IPC-610H作为上位机,西门子S7 -200作为下位机并作为控制器控制执行机构进行数据采集。通过EM231扩展模块进行数据交换,以SIMATIC WinCC组态软件做上位机监控画面,实现对转轮除湿机多个位置的温湿度监测。现场应用结果表明该系统便于管理,控制灵活,稳定性强。系统能简化测量过程,提高测量精度。     

三权混合配置制度及启示——美国联邦独立管制机构为证

美国联邦独立管制委员会修正了传统的西方三权分立制度,是一个具有行政权、准立法权和准司法权独特机构,独立于美国行政部门。美国联邦独立管制机构的制度在美国兴起现象及其缘由,立法、行政和司法三权混合配置及权力运行的限制,以及所产生的影响对我国管制制度建立和完善有启示。     

中国诗行美的形态

人类的审美意识,由直观走向抽象,由低级走向高级,它要在时间和空间的纯形式上,刻下自己的烙印。在诗歌中,审美意识用节奏对时间之流刻下自己的尺度,用韵律对空间弥漫自己的芳香。诗行形态是一种美的时空合一体。在论述中国诗行的审美特质时,应该以发达的成熟形态为研究对象,而不能面对一部跨度极大的诗歌发展史。唐诗中的绝句,则是典型的分析对象。中国诗行美的形态,包括三个方面:一是整齐美,二是抑扬美,三是回环美。中国诗行的美,是中国诗人对韵律节奏本体论的苦苦追求。它的哲学基础,根植于中国诗性智慧的人学本体论追求。     

一种预测轨道杂化类型的简便方法

根据用杂化轨道理论和价层电子对互斥理论预测和判断共价多原子分子或离子 (不包括配合物 )空间构型的原理 ,导出了一种用价层电子对数直接预测中心原子轨道杂化类型的简便方法     

旅游运输通道的系统分析与优化对策

随着旅游业的快速发展,为了提高旅游服务水平与竞争力,大量旅游交通设施开始规划建设,在旅游城市及旅游詈点间逐步形成了旅游运输通道。在定义旅游运输通道特征与功能的基础上,分析了旅游运输通道内各种运输方式的竞争性与协调性,并建立了游客的出行方式选择模型。对旅游运输通道的系统结构与配置进行了探讨,并提出了具体的旅游运输通道系统优化对策。     

力控组态环境下数据采集卡驱动程序的开发

简要介绍了力控驱动程序(FIOS)及其软件开发工具包(SDK)并应用FIOS SDK开发了众人PS-2123数据采集卡的力控I／O驱动程序．测试结果验证了所开发软件的正确性．     

OP—1000型通用工业显示操作面板的设计

讨论了通用工业显示操作面板OP－1000的设计思路、研制过程。重点谈及了该产品的组态及监控软件的实验，介绍了该系统的构成、程序设计要点及其相关注意事项。