电离层闪烁对跟踪测量的影响分析及规避策略

针对某南方卫星测控站测控信号频繁被干扰的情况展开研究。首先介绍国内外对电离层闪烁原理及监视预警方面的研究成果,然后分析电离层闪烁的时空效应原理,通过计算对比电离层强闪烁监测预报数据和卫星测控站的实时观测数据,发现电离层闪烁与卫星测控站跟踪测量信号的幅度、相位抖动以及接收机失锁之间的相关性,最后提出相应的规避策略,期望为后续测控设备的电离层闪烁防护预警研究提供一定的借鉴和参考。     

日本天基测控通信网数据中继与跟踪卫星系统的体系结构及特性

外资并购是我国国有经济进行战略性调整的重要途径,而当前我国资本市场不完全,制约了外资并购的步伐。资本市场的适度国际化是推进外资并购的重要条件。     

超临界350MW电厂四大管道国产化应用分析

目前超临界机组四大管道采用进口产品带来的一系列问题,如价格昂贵,采购周期长,管道制造过程质量无法监督控制,造成电厂基建费用增加,建设周期长,现场安装前检验发现诸多质量缺陷等。通过对国内钢厂所生产的四大管道化学成分、性能指标分析及调研已应用国产化四大管道情况,为某350MW电厂机组四大管道国产化提出建议。     

Cooperation strategies in port-oriented bulk supply chains: aligning concept and practice

It seems intuitively obvious that firms in supply chains may have more to gain than to lose from learning to cooperate; but it is now more than two decades since Poirier [1999. Advanced Supply Chain Management. San Francisco, CA: Barrett-Koehler] and others called for cooperation in order to capture mutual gains in supply networks and even now ‘cooperation is neither common nor easy’. The simple fact is that not only are supply chains exceptionally complex but so too is the ‘process of cooperating’ – often in the context of antitrust legislation and competition policy. This paper argues that there is a critical need to rethink the principles and processes of cooperation within the broader framework of the competitive behaviour of firms and business strategy. Particularly, it suggests that the relatively recent thinking of Greenwald and Kahn [2005 Greenwald, B., and J. Kahn. 2005. Competition Demystified A Radically Simplified Approach to Business Strategy. New York, NY: Portfolio, The Penguin Group. [Google Scholar]. Competition Demystified A Radically Simplified Approach to Business Strategy. New York, NY: Portfolio, The Penguin Group] in their ‘radically simplified approach to business strategy’ offers sound conceptual insights into cooperation and cooperative strategies for firms not only in markets but also in chains. Furthermore, it notes that the analytical framework for cooperation and cooperative strategies which the authors develop is far removed from the notion of cooperation as ‘commitment and trust and shared thinking’ and from ‘buyer/seller reciprocity’ and ‘collaborative attitudes’ which tend to underwrite much contemporary thinking and research. The paper also argues that the Greenwald and Kahn framework – its single intelligence model of cooperation and cooperative strategies – resonates with real-world relevance, at least for particular supply chains. The paper focuses attention on research into globally significant export coal chains from major east coast Australian ports and in brief case studies finds substantial alignment between concept and practice.     

集聚经济、创新溢出与区域创新绩效

推动经济增长的主导因素由传统的劳动力、资本积累向创新要素数量与网络化程度转变。从来源看,区域创新源于区内自主创新与区外创新溢出。区域自主创新能力直接受创新要素禀赋条件的影响,集聚经济因素通过空间外部性作用直接影响区域创新要素集聚能力与水平。同时区域经济发展过程中形成的空间依赖产生区间创新溢出;对外开放过程中产生创新的国际溢出,都对区域创新绩效产生重要影响。实证分析结果表明,从整体上看,集聚经济与创新溢出皆对区域创新绩效有显著影响。因此,应通过强化集聚经济效应,构建开放式创新环境,提高吸收能力以充分利用创新溢出效应,并促进企业价值网与区域创新网“两网合一”,降低交易成本,不断提升区域创新绩效。     

高速公路服务区物流结点的功能定位

我国高速公路事业的快速发展,促进了高速公路服务区功能的转变,这种功能的转变与我国经济社会的发展是分不开的。对服务区的停车、休息、如厕等基本服务功能的开发已不能满足高速公路经营企业追求经济效益的要求,因此,对高速公路服务区做出科学合理的功能定位十分必要。     

在华日韩企业的本土化之比较--以人才本土化为中心

全球金融危机后世界经济处于低迷状态,但中国经济依然高速、稳定增长。面对中国产业结构优化升级和市场日益成熟、逐渐扩大的投资环境,日韩企业开始调整其投资战略。但危机后,韩资企业的竞争力迅速提高,而日资企业却逐渐失去竞争力,造成这些差异的原因之一便是两国本土化能力的不同。作者分别于2007、2012、2014年对部分日韩企业进行调研,发现本土化是影响企业竞争力的一个重要因素,并具体比较分析了以人才本土化为中心的日韩企业本土化特点及实施方式。最后得出一些对我国企业和政府的启示。     

基于土地适度混用的宜居城市建设

目前,我国许多城市土地使用过于单一,损害居民利益,严重妨碍城市宜居。本文从宜居城市概念和评价标准入手,提出宜居城市的核心思想——以人为本,分析土地使用过于单一给居民带来的负面影响,论述土地适度混用的必要性,并提出了建设性意见。     

“Data localization”: The internet in the balance

There is a steady global trend towards “Data Localization,” laws by which data is required to be maintained and processed within the geographic boundaries of its state of origin. This development has raised concerns about its possible adverse impacts on emerging data-intensive technologies such as Cloud services/E-commerce, Big Data, Artificial Intelligence and the Internet of Things (collectively, the Embedded Infosphere). The inability to reach an international agreement on rules for cross-border data flows may have significant adverse consequences for all future users of the Internet.The basis of Data Localization is grounded in two distinct but inter-related policy models: Data Sovereignty and Trans-Border Data Flows. These two concepts have different origins. “Data Sovereignty” is derived from the historic power of a state of absolute and exclusive control within its geographic borders. Policies behind TBDFs arose in Europe following World War II, primarily motivated by Nazi use of early proto-computers to help round up Jews and others. As they have evolved, TBDF policies have been directed primarily at protecting personal data and privacy.This article first examines the issues of: 1) “Information Sovereignty” and 2) TBDFs. It then describes the arguments for and against “Data Localization,” offers some examples of strong localization policies (Russia, China), and summarizes contesting policy proposals. It then contextualizes TBDF with issues of human rights (free flow of information) and privacy.While the utility of an international agreement on TBDFs is clear, the differences in approaches are tenacious. For the free-market developed world (e.g, EU, OECD), the path forward seems to lead through policy convergence to compatible rules, with differentiated levels of data protection and accountability. It is far from clear whether these rules will address, in a mandatory way, issues of the “free flow” of information in the human rights sense. At the same time, there are countries (e.g., BRICS), representing a majority of the world's population, in which political and cultural resistance will produce stringent Cyber Sovereignty and Data Localization policies with few if any human rights components.The article concludes that the more the Internet is “localized”, the more attenuated its benefits will become. The negative consequences of Data Localization will become increasingly obvious as new, data-intensive technologies become ubiquitous, creating a condition of “Data Dependence”. It is projected that in the future the nations with the least amount of Data Localization and the most open flow of information will be the most successful in benefiting from new data-intensive embedded, networked technologies. This will most likely be characterized by values adopted as policies and practices in the EU.     

关于铁路单线隧道接触网弓形腕臂预配平台的相关研究

为降低铁路单线隧道接触网弓形腕臂预配施工难度,论文研究了一种接触网弓形腕臂预配平台,结合单线隧道内弓形腕臂数据精测技术及计算软件,精确测量预配,保证弓形腕臂的安装精度和质量,使弓形腕臂在现场施工中一次成优。论文结合实际,就某铁路单线隧道接触网弓形腕臂预配平台作具体分析。