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81.
The 2008 credit crunch and the subsequent economic crisis ended a period that lasted over two decades wherein international seaports around the globe experienced double-digit volume increases. This chapter provides an analysis of the structural effects that the crisis has on seaports, focusing mostly on developments in Europe. It does so via an examination of (a) the crisis implication for each of the four major types of transport flows that account for the vast majority of port throughput worldwide; (b) the prospects for future capacity organisation and development, given the realignment of the involvement strategies that the various stakeholders (i.e., governments, port authorities, service providers, users, investors) endorse in reaction to the financial tsunami; and (c) the adjustment opportunities, that the trade downturn unintentionally provides, allowing for correction of existing misallocations in the sector via the deployment of relevant adjustment strategies by the related actors. Recapping the identified structural consequences, the final section concludes on the changing role and responsibilities of port authorities and the ‘new issues’ that will require further investigation in the post-financial tsunami era. 相似文献
82.
Developing countries and countries in transition represent between 85% and 90% of the world’s population and face unique public transport challenges that are not necessarily present in developed countries. Issues such as the affordability and accessibility of public transport, funding support and capacity to implement are some of the challenges these countries face. Barriers to strategy implementation in these countries could be a failure to understand the broader business and social environment, poor leadership, a lack of inter-disciplinary and inter-implementer collaboration, and weak monitoring and feedback loops. Weak institutional frameworks are evidenced in inappropriate structures often resulting in institutional inertia and conflict. Over-promising of potential impacts and benefits together with a failure to develop sustainable funding mechanisms often lead to a lack of implementation. The workshop argued that different competition and ownership solutions are needed for a range of factors. This poses a challenge to the THREDBO community as it could mean that the traditional concepts are either not relevant or not usable in the majority of the world’s developing countries, or that the traditional approaches are relevant in many respects but need to be substantially extended and adapted to be applicable and usable in the rest of the world. 相似文献
83.
84.
姚丽萍 《湖北汽车工业学院学报》2006,20(2):65-67
从通用汽车公司在中国的发展历程入手,重点剖析了通用汽车公司迅速拓展中国市场的主要策略,并由此得出企业开拓国际市场的几点启示。 相似文献
85.
从提高个体在价格调控策略下的绿色出行意向入手,制定价格调控策略的辅助措施是提升价格调控策略有效性的重要手段.本文基于出行决策行为变化自调节阶段模型,构建了价格调控策略下的居民出行方式决策过程概念模型.利用拥堵收费和奖励策略下的出行方式决策心理调查数据,基于结构方程模型,对比分析了拥堵收费和奖励策略下不同机动化出行习惯强度个体通勤与非通勤出行方式决策心理的差异化特征.最后,针对出行方式决策过程中动机形成阶段,计划行为阶段,以及实施计划阶段的心理特征,分别提出了价格调控策略的辅助措施,为价格调控策略实施提供了更好的辅助决策支持. 相似文献
86.
《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》2012,50(9):781-805
The article reports an experimental study of driver steering control behaviour in a lane-change manoeuvre. Eight test subjects were instrumented with electromyography to measure muscle activation and co-contraction. Each subject completed 30 lane-change manoeuvres with one vehicle on a fixed-base driving simulator. For each driver, the steering torque feedback characteristic was changed after every ten manoeuvres; the response of the vehicle to steering angle inputs was not changed. Drivers' control strategies were found to be robust to changes in steering torque feedback. Path-following errors, muscle activity and muscle co-contraction all reduce with the number of lane-changes performed by the driver, suggesting the existence of a learning process. Comparing the test subjects, there was some evidence that high levels of co-contraction were used to allow high-frequency steering inputs to be generated. The results contribute to the understanding of vehicle–driver (and more generally, human–machine) dynamic interaction. 相似文献
87.
Christoph Humborg Katja Fennel Marianna Pastuszak Wolfgang Fennel 《Journal of Marine Systems》2000,25(3-4)
We develop a layered “box model” to evaluate the major effects of estuarine eutrophication of the Szczecin lagoon which can be compared with integrating measures (chlorophyll a (Chl a), sediment burial, sediment oxygen consumption (SOC), input and output of total nutrient loads) and use it to hindcast the period 1950–1996 (the years when major increase in nutrient discharges by the Oder River took place). The following state variables are used to describe the cycling of the limiting nutrients (nitrogen and phosphorus): phytoplankton (Phy), labile and refractory detritus (DN, DNref, DP, DPref), dissolved inorganic nitrogen (DIN), dissolved inorganic phosphorus (DIP), and oxygen (O2). The three layers of the model include two water layers and one sediment layer. Decrease of the carrying capacity with respect to the increased supply of organic matter of the system with advancing eutrophication over the period studied is parameterized by an exponential decrease of the sediment nitrogen fluxes with increasing burial, simulating changing properties from moderate to high accumulating sediments. The seasonal variation as well as the order of magnitude of nutrient concentrations and phytoplankton stocks in the water column remains in agreement with recent observations. Calculated annual mean values of nutrient burial of 193 mmol N m−2 a−1 and 23 mmol P m−2 a−1 are supported by observed values from geological sediment records. Estimated DIN remineralization in the sediments between 100 and 550 mmol N m−2 a−1 corresponds to SOC measurements. Simulated DIP release up to 60 mmol P m−2 a−1 corresponds to recent measurements. The conceptual framework presented here can be used for a sequential box model approach connecting small estuaries like the Szczecin lagoon and the open sea, and might also be connected with river box models. 相似文献
88.
工程项目执行控制体系的建立与运行受组织结构、工作流程等多方因素的影响,其中业主与承包商、监理之间合作的努力水平是影响该体系建立与运行的关键。在执行控制体系中业主处于合作的中心,通过合作模型的经济学分析可知,影响承包商、监理的合作努力水平主要受业主激励强度的影响,在此结论的基础上引入马斯洛的需求层次假设,进一步分析了业主在已知自身实际激励强度的基础上,应根据承包商、监理的不同需求水平采取不同的激励策略。最终设计促进工程项目委托方与代理方合作的激励运行机制,进而提高工程项目代理人与委托人的合作努力水平,保证执行控制体系的有效运行,实现工程项目的各项目标。 相似文献
89.
陆恩 《武汉航海(武汉航海职业技术学院学报)》2007,(3)
本文运用定量和定性的研究方法,调查了职业技术学院特殊用途英语专业新生自主阅读现状和导致该现状的原因。结果表明,学生在英语阅读学习中表现出一定的自主性,其自主程度在阅读的各个阶段基本上都是中等偏低,但存在一定的差异,阅读中较高些,阅读前较低而阅读后最低;导致该现状的原因是多方面的,主要是缺乏内在动机、有一定的外在动机、对老师的过分依赖、较低的自我效能感、没有受过系统的阅读元认知和认知策略的培训。本研究结果对职业技术学院的英语阅读教学有一定的启示。 相似文献
90.
蔡晓慧 《湖北汽车工业学院学报》2001,15(1):73-76
本文通过对中学生和大学生英语学习的动机和策略的调查 ,揭示了动机、策略和学习成效的关系。 相似文献