Exploring the network structure and nodal centrality of China’s air transport network: A complex network approach

This paper uses a complex network approach to examine the network structure and nodal centrality of individual cities in the air transport network of China (ATNC). Measures for overall network structure include degree distribution, average path length and clustering coefficient. Centrality metrics for individual cities are degree, closeness and betweenness, representing a node’s location advantage as being directly connected to others, being accessible to others, and being the intermediary between others, respectively. Results indicate that the ATNC has a cumulative degree distribution captured by an exponential function, and displays some small-world (SW) network properties with an average path length of 2.23 and a clustering coefficient of 0.69. All three centrality indices are highly correlated with socio-economic indicators of cities such as air passenger volume, population, and gross regional domestic product (GRDP). This confirms that centrality captures a crucial aspect of location advantage in the ATNC and has important implications in shaping the spatial pattern of economic activities. Most small and low-degree airports are directly connected to the largest cities with the best centrality and bypass their regional centers, and therefore sub-networks in the ATNC are less developed except for Kunming in the southwest and Urumchi in the northwest because of their strategic locations for geographic and political reasons. The ANTC is relatively young, and not as efficient and well-developed as that of the US.     

ROBUST MONETARY POLICY UNDER UNCERTAINTY ABOUT CENTRAL BANK PREFERENCES

In this paper, we study the impact of central bank opacity on macroeconomic performances in a new Keynesian framework with model uncertainty using robust control techniques. We identify a new source of central bank opacity, which refers to the lack of information about the central bank's preference for robustness in the sense of Hansen and Sargent . We find closed‐form solutions for the robust control problem, analysing the impact of the lack of transparency about the central bank's preferences for robustness. We show that an increased transparency about the central bank's preference for robustness makes monetary policy respond less aggressively to cost‐push shocks, thus reducing the inflation and output gap variability. As a consequence, inflation and output gap are less volatile than under central bank opacity about its preference for robustness.     

棒材连轧自动控制的研究与应用

本文阐述了棒材热连轧中精轧控制系统中的活套控制系统,对活套高度控制作了较为全面和深入的研究,为企业取得良好的经济效益提供了可靠的技术基础。     

防城港20万吨级码头环境保护设计浅析

通过对防城港20万吨级码头环境建设情况的介绍和分析，综述矿码头环保建设的必要性和如何实施工程建设的环保“三同时”以及实现环境效益、经济效益和社会效益的统一。     

浅谈项目施工中的流程管理

文章以实例探讨了流程管理在项目施工过程中运用，分析了流程管理的重要性和可操作性，总结了流程管理对企业管理所产生的作用。     

苏北农产品物流发展对策研究

发展农产品物流已经成为加快新农村建设、发展现代农业、增加农民收入和提升农村经济利润新的增长点的动力源之一。以苏北农产品物流为研究对象,首先论述农产品物流的特点,然后针对苏北农产品物流现状,剖析落后的原因,最后提出苏北农产品物流发展的对策。     

Domestic firms competing with multinational enterprises: The relevance of resource-accessing alliance formations

The literature includes several papers that compare multinational enterprises (MNEs) to local firms along several dimensions such as financial strength or production capacity. Nevertheless, the focus on how latter firms compete against the former is often missing in the literature; local firms are typically seen as inferior in terms of resources and thus, unable to compete against MNEs. This paper aims at revisiting this competitive ‘battle’. Through a case-based design in a ‘multinational’ domestic market that seems to favour MNEs, we explore how local firms respond to MNEs’ purported superiority. Findings indicate that local firms respond through alliance formations that enable them to access fitting resources and counter ownership advantages of MNEs. Therefore, resource-accessing strategies spearheaded by local firms suggest that ownership advantages should not be inherently translated into competitive advantages for the MNEs. Implications for international business are discussed and avenues for further research are suggested.     

谈多层异形柱框架结构的设计

结合工程实例,简述了如何合理布置异形柱结构的竖向构件,并指出了计算时需要注意的事项以及设计时需要注意的构造措施.     

谈地铁供电系统中的变压器保护及故障解决

随着城市规模的不断发展,汽车的数量不断增多,城市交通压力不断增大,城市地铁正成为城市的"钢铁大动脉",而电力变压器是地铁电力系统中的重要电气设备,其发生故障将影响地铁供电系统的可靠性及正常运行.笔者对电力变压器的故障类型进行了分析,并提出了一些解决措施.     

移动运营商盈利模式的探讨──对茂名移动公司的案例研究

盈利模式是探求企业利润来源、生成过程和产出方式的系统方法,每个企业都要思考和研究盈利模式的问题,没有盈利模式、或者盈利模式不清晰,企业都将面临巨大的灾难。本文针对茂名移动公司展开盈利模式的探讨,对不同的业务提出了相应的盈利模式,以此来构建企业全新的盈利模式。