网络GPS技术在航道工程中的应用

文章介绍了西江航运干线贵港至梧州航道工程№5合同段工程中网络GPS技术的应用。     

Customer-capturing strategies: The way to replace existing technology characterized by network effects

Network effects are the basis of competitive advantage in digital economies. Although some researchers have indicated that technologies characterized by network effects are difficult to replace, real-world situations have not confirmed this argument. Challengers still defeat market leaders in markets with network effects. The analytical results presented here include the following: (1) a proposed new concept, resilience, can describe the resistive strength of a network to challenger customer-capturing strategies, (2) three types of networks can be identified based on their resilience values, and (3) high-resilience networks possessing technology are difficult to replace.     

Managing risk and uncertainty in complex capital projects

In evaluating capital budgeting decisions, quantitative approaches, such as traditional discounted cash flow modeling and real options valuations, are useful when there is a presumed probability distribution for the future forecasted outcomes or for when there are lower levels of uncertainty. As uncertainty increases and forecasting becomes difficult, the value of financial modeling techniques decreases. Borrowing from the strategic management literature, we argue that it may be useful to employ a qualitative approach to evaluate capital projects when faced with high levels of uncertainty. In order to illustrate our argument, we use a derivative of scenario planning and qualitative real options to evaluate non-quantifiable factors in a project for the National Ignition Facility.     

基于网络工程专业学生职业生涯规划的实现路径管窥

立足大学生职业生涯规划的实质,针对网络工程专业学生职业生涯规划的现状分析,从加强专业认知、优势盘点与职业认知与雇佣能力建构三个方面入手,提升其就业竞争力。     

Deregulating the electricity industry in Nigeria: Lessons from the British reform

The Federal Republic of Nigeria has set out the modalities for launching a competition policy regime in its electricity industry in 2006. By analysing the factors that may inhibit a smooth transition to contestable regimes in generation (commodity and capacity) and in supply (metering, billing and customer services), this paper lays the foundation for the policy advisors to begin to re-think whether unbundling and deregulation is the best way for Nigeria to improve power supply. The paper concludes that, consistent with some of the other countries in sub-Saharan Africa, implementing a hastily convened competition policy will be a huge transaction cost, and one that will yield the country very little (if any) economic benefit.     

A核电站核岛UPS电源安装调试进度计划及控制研究

A核电站核岛UPS电源安装调试项目进度具有工期紧、资源紧张的主要特点,本文结合网络计划技术和关键链技术编制了该项目的进度计划,并在执行进度计划过程中,以控制循环理论为指导,对项目执行进行事前、事中、事后控制等有效的项目管理,确保项目得以顺利实施。     

竞争企业的技术许可与市场进入策略研究

本文对在位企业和潜在进入企业同时选择技术许可费并决定是否进入市场的策略进行了分析和讨论。我们证明如果在位平台企业收取的许可费小于某一临界水平,则潜在进入企业的的最优反应是不进入;如果收取的许可费大于某临界水平,则进入企业的最优反应是进入。另外,如果在位平台企业的初始网络规模和网络外部性足够强,则在位企业选择垄断的技术许可价格,并且进入企业选择不进入。如果初始网络优势不是很大,则潜在进入者的出现使得在位企业会降低技术许可费,以形成进入壁垒。     

Network flow-based strategies for identifying rail park-and-ride facility locations

Many cities are considering introducing or expanding rail service in an effort to diversify their modal splits. Park-and-rides are integral to this strategy because they represent private auto users’ access points to the system. Proper placement of such facilities is a strategic location decision, as it can conceivably decrease vehicular traffic on congested roadways while benefiting users. This paper models the decision to locate park-and-ride facilities in a network flow-based framework. From this perspective, optimal placement occurs at locations where vehicles will encounter facilities early during their journeys to a centralized area or major activity center. Locating park-and-rides in this fashion maximizes the chances of removing users from the network. These elements are demonstrated in three hypothetical placement scenarios that make use of synthetic network and traffic flow data. Results illustrate the functionality of our approach for identifying park-and-ride candidate locations. Lastly, implications of our work are discussed in light of broader planning concerns and practical demands on rail facility location.     

Development of patent roadmap based on technology roadmap by analyzing patterns of patent development

Recently, patent forecasting and planning has been emphasized as an essential process in the strategic management of technology because well-planned patents will make larger profits and occupy dominant positions first. Thus, this paper aims to suggest the concept and process of a patent roadmap based on a technology roadmap and patterns of patent development. For this, first, ontology of technology is generated to structure the characteristics of technology based on the existing technology roadmap and then patents are collected from a patent database. Second, collected patents are grouped by similarities based on vectors of extracted keywords and grouping results are classified by TEMPEST. In this step, keywords extracted from the previous phase are matched with TEMPEST individually and patent groups are categorized in accordance with high relevance between representative keywords in patent groups and core keywords in each category of TEMPEST. Third, the patterns of patent development are identified for each patent group and categorized by two types – structural and temporal patterns. Consequently, extracted patterns serve as evidence of patent planning, and the patent roadmap is drawn with the technology layer composed of the technology roadmap and the patent layer that each group is mapped on. The proposed approach is illustrated by the case of the transparent AMOLED display. The patent roadmap will enable managers to establish patenting strategies in order to achieve a valuable core patent that has the potential to become a business model, yielding good returns in the long term.     

农村经济多样性和产业化与农民增加收入的内因和机理

本文构建农村经济多样性和产业化生产模型。分析多样性和创新是农村经济发展和农民增加收入的内在因素。证明资源多样性、经济规模性和价值创新是现代农业和农村经济的生产方式，它们所产生的资源创新和供给创新克服了农业自然资源约束和农产品需求无弹性，降低了农业生产收益递减率，扩大了农村就业，这些是农民增加收入的核心机理。     

对农业科技期刊生存发展对策的探索与思考——以《农村新技术》期刊为例

在市场经济条件下,期刊和其他商品一样都不可避免地要参与激烈的市场竞争,在优胜劣汰中实现自身价值。农业科技期刊如何面向经济建设,面向市场,面向“三农”,接受读者检验,在竞争中站稳脚跟,在发展中实现经济效益,是摆在农业科技期刊面前的新课题。文章以《捉村新技术》期刊为例,探讨了当前农业科技期刊存在的问题及原因,并提出了相应的对策。     

基于城乡统筹的农房集聚建设研究——以温州市为例

针对温州城乡统筹工作现状,分析研究农房集聚过程中所遇到的问题及其对城乡统筹发展的影响。农房集聚是个系统工程,综合考虑自然、社会、经济等因素,提出农房集聚工作的对策,主要包括合理规划、完善土地流转、强化监督机制、加大财政投入、广辟融资渠道、提高职业技能、运用税收手段、精神文明建设。