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Comparative Study on Efficiency of the Seaports in China and Korea
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作者 邵言波 潘宝峰 《Journal of Donghua University(English Edition)》 EI CAS 2018年第4期321-325,共5页
The efficiency of the seaport has been variously studied utilizing either data envelopment analysis( DEA) or stochastic Frontier analysis( SFA). Given the strengths and weaknesses associated with these two approaches,... The efficiency of the seaport has been variously studied utilizing either data envelopment analysis( DEA) or stochastic Frontier analysis( SFA). Given the strengths and weaknesses associated with these two approaches, applying both models to compute efficiency estimates for the 11 seaports of the China and Korea from 2012-2016 and comparing the results obtained. Main finding facts of this paper are as follows:( i) there are some differences among relative efficiency levels,but almost no differences among efficiency ranks in DEA and SFA results.( ii) The tendency of VRS is stronger in Chinese coastal seaports during the past several years.( iii) The values among seaports in SFA model are relatively smaller than those in the DEA models. The results show that the efficiency of major seaports in Korea is far lower than that of ports in China. 展开更多
关键词 data envelopment analysis ( DEA ) STOCHASTIC Frontierapproach ( SFA ) seaportS EFFICIENCY China Korea
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Some problems on dynamical sedimentology in sea area near Huanghe Seaport
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《Acta Oceanologica Sinica》 SCIE CAS CSCD 1997年第2期239-248,共10页
Inthispaper,twoproblemsondynamicalsedimentologyintheseaareaneartheHuanghe(Yellow)RiverSeaportarestudied.Firs... Inthispaper,twoproblemsondynamicalsedimentologyintheseaareaneartheHuanghe(Yellow)RiverSeaportarestudied.Firstly,withsynchronouslyobsrveddataofbed-loadtrapandwinds,startingandtransportingdy-namicalmechanismofsedimentsontheintertidalshoalisanalysedandstudied.Itisconsideredthatsurfcurrents.Secondly,ofsedimentsontheintertidalshoalneartheHuangheSeportarecontrolledbywavesandtheirsurfcurrents.Secondly,withthehelpofdataobservedthroughsynchronousobservationconcentrationofsuspendedsediments,currentvelocityandwavehei 展开更多
关键词 area SEA NEAR SEDIMENTOLOGY seaport Huanghe
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China's Seaport Diplomacy: Theories and Practice
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作者 孙德刚 《China Economist》 2018年第6期34-48,共15页
China has developed a new chain of commercial seaports along the Maritime Silk Road. These ports are unlike those used by overseas military bases of the United States. While the former focuses on the economic developm... China has developed a new chain of commercial seaports along the Maritime Silk Road. These ports are unlike those used by overseas military bases of the United States. While the former focuses on the economic development of China and other involved countries through investment, trade, infrastructure construction and international shipping center development, the latter is at the service of the U.S. security strategy underpinned by goals to strengthen alliances, fight terrorism, expand influence and support proxies. China has gained extensive experience from its seaport reform. Opening-up programs like the "Shekou model" promote business opportunities in addition to the essential services, and define the port area as the "frontier", the industrial park as the "middle ground", and the port city as the "backyard". Based on such experience, China is ready to contribute to the development, peace and stability of emerging countries along the Maritime Silk Road and explore seaport diplomacy with Chinese resilience, diligence and foresight. China's seaport diplomacy is market-oriented and involves companies as key players. It is also supported by government coordination. Seaport diplomacy has increased connectivity and interdependence between countries and regions along the Maritime Silk Road, and helps avoid the "zero-sum game" and the "core-peripheral" asymmetrical relationship of dependence. China's participation in the development of seaports along the Maritime Silk Road has facilitated the industrialization process of the countries involved and benefited local communities. This approach stands in sharp contrast to the maritime militarization and democratization pursued by some Western countries. Nevertheless, China's participation in the development of seaports along the Maritime Silk Road also faces economic, legal, political, and security risks. Thus, caution should be given to the tendency to politicize China's seaport development. 展开更多
关键词 seaport DIPLOMACY the Belt and ROAD INITIATIVE the MARITIME SILK ROAD seaport POLITICS Chinese DIPLOMACY
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Efficiency of Moroccan Seaports: Application of DEA Using Window Analysis
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作者 Mahdi Birafane Moad El Abdi 《Engineering(科研)》 2019年第2期107-118,共12页
The efficiency of 8 seaports in the Kingdom of Morocco region was evaluated. Two associated studies were conducted based on data collected for 4 years (2014-2017), Standard Data Envelopment Analysis (DEA) method was u... The efficiency of 8 seaports in the Kingdom of Morocco region was evaluated. Two associated studies were conducted based on data collected for 4 years (2014-2017), Standard Data Envelopment Analysis (DEA) method was used in the first analysis through CCR and BCC models, and thus a scale of efficiency analysis was used in a second analysis. By using both methods, enhanced insight into the efficiency situation is collected, proving subsequently that a majority of the container ports and terminals in the Kingdom of Morocco are found to be technically inefficient. The research concludes through returns to scale method how port resources should be utilized in the aim to impulse inefficient ports perform better. 展开更多
关键词 MOROCCAN seaportS Data Envelopment Analysis seaportS EFFICIENCY BCC MODEL CCR MODEL Returns to Scale Method
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Development and evaluation of a DNA microarray assay for the simultaneous detection of nine harmful algal species in ship ballast and seaport waters 被引量:1
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作者 陈先锋 周前进 +6 位作者 段维军 周成旭 段丽君 张慧丽 孙爱丽 严小军 陈炯 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2016年第1期86-101,共16页
Rapid,high-throughput and reliable methods are urgently required to accurately detect and monitor harmful algae,which are responsible for algal blooms,such as red and green tides. In this study,we successfully develop... Rapid,high-throughput and reliable methods are urgently required to accurately detect and monitor harmful algae,which are responsible for algal blooms,such as red and green tides. In this study,we successfully developed a multiplex PCR-based DNA microarray method capable of detecting nine harmful algal species simultaneously,namely A lexandrium tamarense,Gyrodinium instriatum,Heterosigma akashiwo,Karenia mikimotoi,Prorocentrum donghaiense,Prorocentrum minimum,Ulva compressa,Ulva ohnoi and Ulva prolifera. This method achieved a limit of detection(LOD) of 0.5 ng of genomic DNA(orders of magnitude of the deci-nanogram range) in the tested algae cultures. Altogether,230 field samples from ship ballast waters and seaport waters were used to evaluate the DNA microarray. The clinical sensitivity and specificity of the DNA microarray assay in detecting field samples were 96.4% and 90.9%,respectively,relative to conventional morphological methods. This indicated that this high-throughput,automatic,and specific method is well suited for the detection of algae in water samples. 展开更多
关键词 基因芯片技术 同时检测 船舶压载水 藻种 水域 海港 塔玛亚历山大藻 有害藻类
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海港综合能源系统低碳经济发展研究综述 被引量:1
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作者 林森 文书礼 +2 位作者 朱淼 马建军 赵耀 《中国电机工程学报》 EI CSCD 北大核心 2024年第4期1364-1385,I0010,共23页
在我国“碳达峰与碳中和”愿景下,海港综合能源系统正通过全面电气化降低二氧化碳排放,实现海洋能源的可持续发展,但多能流融合给海港能源配置与优化运行带来新挑战。该文首先结合海港节能减排政策,对海港综合能源系统低碳经济发展进行... 在我国“碳达峰与碳中和”愿景下,海港综合能源系统正通过全面电气化降低二氧化碳排放,实现海洋能源的可持续发展,但多能流融合给海港能源配置与优化运行带来新挑战。该文首先结合海港节能减排政策,对海港综合能源系统低碳经济发展进行概述;然后,从能源侧、负荷侧和能源存储3个层次分析海港综合能源系统特点,总结促进海港低碳减排的能源交易、碳捕集与利用封存、储能系统优化配置和多能互补协同优化运行关键技术;最后,对基于储能系统的未来海港低碳经济发展研究方向进行展望。 展开更多
关键词 海港综合能源系统 低碳经济 储能系统 能源交易 优化配置 多能互补协同优化
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Application of a collaborative modelling and strategic fuzzy decision support system for selecting appropriate resilience strategies for seaport operations 被引量:5
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作者 Andrew John Zaili Yang +1 位作者 Ramin Riahi Jin Wang 《Journal of Traffic and Transportation Engineering(English Edition)》 2014年第3期159-179,共21页
The selection of an appropriate resilience investment strategy to optimize the operational efficiency of a seaport is a challenging task given that many criteria need to be considered and modelled under an uncertain e... The selection of an appropriate resilience investment strategy to optimize the operational efficiency of a seaport is a challenging task given that many criteria need to be considered and modelled under an uncertain environment. The design of such a complex decision system consists of many subjective and imprecise parameters contained in different quantitative and qualitative forms. This paper proposes a fuzzy multi-attribute decision making methodology for the selection of an appropriate resilience investment strategy in a succinct and straightforward manner. The decision support model allows for a collaborative modelling of the system by multiple analysts in a group decision making process. Fuzzy analytical hierarchy process (FAHP) was utilized to analyse the complex structure of the system to obtain the weights of all the criteria while fuzzy technique for order of preference by similarity to ideal solution (TOPSIS) was employed to facilitate the ranking process of the resilience strategies. Given that it is often financially difficult to invest in all the resilience strategies, it is envisaged that the proposed approach could provide decision makers with a flexible and transparent tool for selecting appropriate resilience strategies aimed at increasing the resilience of seaport operations. 展开更多
关键词 seaport RESILIENCE FAHP TOPSIS decision making
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A Trend Analysis of Competition Positioning in Chinese Seaports by Using DEA Model and BCG Matrix 被引量:2
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作者 Hoki Nam 《中国海洋经济评论》 2007年第1期80-100,共21页
This paper has shown the trend of competition positioning of ten critical Chinese seaports from 2003 to 2006 by using DEA model for the performance efficiency analysis and BCG matrix,which consists of relative market ... This paper has shown the trend of competition positioning of ten critical Chinese seaports from 2003 to 2006 by using DEA model for the performance efficiency analysis and BCG matrix,which consists of relative market share and growth rate as well as the scores of both BCC and CCR in the vertical and horizontal axis of BCG matrix.The expected results will include the total economic efficiency ranking of each Chinese seaport,and the relative competitive positioning in terms of growth rate and efficiency scores.The main policy implication of this paper is to emphasize the DEA model and BCG matrix method can support the seaport managers the basic information for planning the future port management for enhancing the competitive positioning among Chinese seaports. 展开更多
关键词 DEA model BCG MATRIX TECHNICAL efficiency seaport
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电力建设工程定额与沿海港口水工建筑工程定额对比分析——以某滨海电厂取排水工程为例
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作者 李鹤 刘文宇 刘金岳 《电力勘测设计》 2024年第2期81-86,共6页
大型火电厂直流冷却水系统土建部分的取排水工程与港口工程中的取水构筑物类似,各自的定额也有参考性。为了对比两种定额的造价水平,以某滨海电厂的取排水工程为例,分别采用电力定额和港口定额来编制投资估算,并进行对比分析。结果表明... 大型火电厂直流冷却水系统土建部分的取排水工程与港口工程中的取水构筑物类似,各自的定额也有参考性。为了对比两种定额的造价水平,以某滨海电厂的取排水工程为例,分别采用电力定额和港口定额来编制投资估算,并进行对比分析。结果表明:使用两种定额得到的整体投资估算相差约7.13%,但分项投资相差约30%~50%,电力设计的实际工作中应参考港口工程定额,综合得到投资估算,以免产生较大偏差。 展开更多
关键词 取排水工程 电力定额 港口定额 投资估算
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海上栈桥预制空心板安装方案探讨
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作者 董行 《港口航道与近海工程》 2024年第2期95-99,共5页
为有效提高栈桥空心板梁施工技术水平,结合福建湄洲湾某海港栈桥工程实际,从施工准备、空心板吊装和运输、架桥机架设、架桥机拆除等方面分析了空心板梁施工工艺与方法,并对吊索具进行了选型,通过采用BIM安质系统平台有效减少了空心板... 为有效提高栈桥空心板梁施工技术水平,结合福建湄洲湾某海港栈桥工程实际,从施工准备、空心板吊装和运输、架桥机架设、架桥机拆除等方面分析了空心板梁施工工艺与方法,并对吊索具进行了选型,通过采用BIM安质系统平台有效减少了空心板安装重新吊起纠偏的现象,加快了施工进度,降低了施工成本,为栈桥空心板安装提供参考。 展开更多
关键词 空心板 安装 栈桥 海港
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Resilience of Regional Seaports under Global Financial Crisis:Case Studies of China
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作者 Liu Shuguang a native of Xiajin in Shandong Province,Ph D in human geography, professor in KRI Marine Development and College of Economy,Ocean University of China Sheng Jie 《中国海洋经济评论》 2009年第1期42-56,共15页
Global financial crisis has been bringing about dramatic sharp decreasing of world investment and trade since late 2008.And it also deliver great loses of throughput of China’s regional seaports at the same time.The ... Global financial crisis has been bringing about dramatic sharp decreasing of world investment and trade since late 2008.And it also deliver great loses of throughput of China’s regional seaports at the same time.The authors of this paper try to probe into the resilience of Chinese seaport clusters during the global financial crisis.By utilizing the indicators of actual FDI,the total import and export volumes and the year-on -year growth rate of the port cargo throughput,we manage to analyze this decreasing process and their response and resilience.The initial research results show that the on-going global financial crisis will also bring about the opportunity in helping the positive evolution and competition of the regional ports. 展开更多
关键词 REGIONAL seaportS REGIONAL RESILIENCE EVOLUTION GA
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“Development First”:China’s Investment in Seaport Constructions and Operations along the Maritime Silk Road
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作者 SUN Degang Yahia ZOUBIR 《Asian Journal of Middle Eastern and Islamic Studies》 2017年第3期35-47,共13页
Seaports are crucial pivots connecting a state’s national economy with the world economy.As the largest developing country and one of the largest seaport constructors and operators in the world,China insists on the i... Seaports are crucial pivots connecting a state’s national economy with the world economy.As the largest developing country and one of the largest seaport constructors and operators in the world,China insists on the importance of improving people’s livelihood by building key seaports infrastructure,airports,power plants,highways,and railways.Invited by the host countries,China has participated broadly in the construction and operations of commercial seaports along the Maritime Silk Road,which stretches from Southwest Asia to Eastern Africa and to the Mediterranean Sea and the Maghreb.Officials in Beijing argue that the fundamental task facing the majority of developing countries along the Maritime Silk Road is development,and suggest that“bread is more important than the ballot box”.One can anticipate that when the project is executed,the threats to China’s seaport construction will range from financial burdens,ethnic conflicts,attacks carried out by extremists,and cultural misunderstandings with the host nations to great power rivalries. 展开更多
关键词 seaport Construction “Belt and Road”Initiative China and the Middle East Maritime Silk Road Marine Infrastructure
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新形势下我国港口集装箱运输系统优化研究 被引量:1
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作者 徐杏 高天航 +3 位作者 沈益华 于汛然 吴宏宇 耿志鑫 《水运工程》 北大核心 2023年第3期6-11,16,共7页
经过几十年的发展,我国基本形成了较为完善的集装箱运输系统,有力支撑了我国经济社会的发展和对外开放战略的实施。近年来,随着港口资源的一体化整合、新冠肺炎疫情的持续发酵以及全球经贸格局、双循环新发展格局的深入调整,我国集装箱... 经过几十年的发展,我国基本形成了较为完善的集装箱运输系统,有力支撑了我国经济社会的发展和对外开放战略的实施。近年来,随着港口资源的一体化整合、新冠肺炎疫情的持续发酵以及全球经贸格局、双循环新发展格局的深入调整,我国集装箱运输系统也呈现一些新变化和新要求。本文梳理了我国集装箱运输系统现状,结合新形势下的新挑战和新要求,研究提出了未来完善和优化集装箱运输系统的方向和重点,以更好地支撑未来我国港口等相关规划的编制和集装箱运输系统的高质量发展。 展开更多
关键词 集装箱运输 一体化 国际枢纽海港 系统优化 港口规划
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国际枢纽海港的战略内涵及评价指标体系研究
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作者 徐杏 沈益华 +2 位作者 黄川 于汛然 徐静怡 《水运工程》 北大核心 2023年第4期14-19,103,共7页
《国家综合立体交通网规划纲要》明确提出我国将着力推进11个国际枢纽海港建设的发展目标,由此为沿海港口的分层次优化发展提出了具体方向。作为更高层次的主要港口,国际枢纽海港肩负着提升我国对外开放水平和全球竞争力、引领区域综合... 《国家综合立体交通网规划纲要》明确提出我国将着力推进11个国际枢纽海港建设的发展目标,由此为沿海港口的分层次优化发展提出了具体方向。作为更高层次的主要港口,国际枢纽海港肩负着提升我国对外开放水平和全球竞争力、引领区域综合立体交通网络和区域港口群高质量发展的重要使命。基于我国沿海港口的分层次发展特点以及国际枢纽海港提出的时代背景,研究提出国际枢纽海港建设的战略要求、具体内涵和相应的评价指标体系,有利于更好地指导、推动国际枢纽海港的分类特色发展。 展开更多
关键词 国际枢纽海港 战略内涵 评价指标体系
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级联失效下海港-陆港集装箱运输网络鲁棒性分析 被引量:2
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作者 许波桅 唐灿璇 李军军 《交通运输系统工程与信息》 EI CSCD 北大核心 2023年第3期265-279,共15页
当海港受到攻击而失效时,由于港口间的连通关系,会在海港-陆港集装箱运输网络中产生级联失效效应,进而扩散到整个网络中。为此,本文研究海港-陆港集装箱运输网络级联失效下的鲁棒性,设计海港节点与陆港节点的不同状态指标,根据节点失效... 当海港受到攻击而失效时,由于港口间的连通关系,会在海港-陆港集装箱运输网络中产生级联失效效应,进而扩散到整个网络中。为此,本文研究海港-陆港集装箱运输网络级联失效下的鲁棒性,设计海港节点与陆港节点的不同状态指标,根据节点失效传播能力与节点间引力模型建立失效节点负载转移方程,构建海港-陆港集装箱运输网络级联失效模型和鲁棒性评估指标,探讨邻居节点失效传播能力阈值、节点冗余量、跳港比例、海港合作陆港数量变化,以及不同节点攻击方式对网络鲁棒性的影响,同时,探究在海港失效后,其竞争港口的业务量变化。结果表明,在增强鲁棒性能方面,节点失效传播能力阈值与跳港比例存在最优取值区间;在一定范围内提高节点的容差参数有助于降低网络级联失效的影响;同时,海港所合作的陆港重叠范围不应过高;竞争港口会瓜分一部分失效海港的业务份额,其业务份额与两港口之间的距离和竞争港口的作业能力相关。 展开更多
关键词 综合运输 失效传播 级联失效模型 海港-陆港集装箱运输网络 鲁棒性
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计及海水淡化电制氢和热惯性的海港综合能源系统优化运行模型
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作者 杜天硕 李军徽 +1 位作者 葛磊蛟 张博涵 《电力自动化设备》 EI CSCD 北大核心 2023年第12期143-150,共8页
针对大型海港综合能源系统存在的多类型能源需求难以平衡的问题,提出了一种考虑海水淡化电制氢和热惯性的海港综合能源系统优化运行模型。充分发挥海港的地理优势,引入海水淡化装置和电解水制氢系统作为综合能源的可控负荷,实现风光发... 针对大型海港综合能源系统存在的多类型能源需求难以平衡的问题,提出了一种考虑海水淡化电制氢和热惯性的海港综合能源系统优化运行模型。充分发挥海港的地理优势,引入海水淡化装置和电解水制氢系统作为综合能源的可控负荷,实现风光发电的就近消纳,并为海港提供水负荷;考虑热负荷的惯性和人对温度舒适度的约束,灵活调整供热负荷的输出,进而构建了以日化综合最小用能成本为目标的海港综合能源系统优化运行模型。仿真分析表明,所提模型能够在满足海港内负荷需求的基础上,减少系统的运维成本、购能成本、碳排放成本以及弃风弃光成本。 展开更多
关键词 海港综合能源系统 热惯性 海水淡化 电解水制氢 电转气
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基于NSGA-Ⅱ算法的福建省海港-陆港网络构建研究
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作者 陈志伟 王鸿鹏 《中国航海》 CSCD 北大核心 2023年第1期114-119,126,共7页
针对海港-陆港缺乏合理的网络布局问题,在港口资源整合背景下,以物流成本、碳排放成本和陆港建设成本最小为目标构建出海港-陆港物流网络多目标规划模型,引入陆港建设补贴系数和规模运输价格折扣系数,以福建省海港群为例,利用带精英策... 针对海港-陆港缺乏合理的网络布局问题,在港口资源整合背景下,以物流成本、碳排放成本和陆港建设成本最小为目标构建出海港-陆港物流网络多目标规划模型,引入陆港建设补贴系数和规模运输价格折扣系数,以福建省海港群为例,利用带精英策略的非支配排序遗传算法(NSGA-Ⅱ)进行求解,最后得到16种陆港建设方案和对应经济腹地的货流分配方案,可以为不同角度的决策者提供参考。研究结果表明:当建设陆港的数量越多、规模越大时,将产生较低的物流成本和碳排放成本。与未构建海港-陆港网络时相比,基于NSGA-Ⅱ算法的福建省海港-陆港网络中的碳排放成本可减少14.14%,物流成本可减少5.54%。 展开更多
关键词 NSGA-Ⅱ算法 海港-陆港网络 港口资源整合 熵权-TOPSIS法
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基于三阶段DEA模型的海港型城市机场效率评价
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作者 钱琪伟 杨正全 柳青 《科技和产业》 2023年第17期8-16,共9页
为探究海港型城市机场的运行效率,采用三阶段DEA(数据包络分析)模型及Malmquist生产力指数分别从静态、动态两个角度分析。选取沿海地区14座海港型城市的机场并选取内陆地区城市的18家机场进行对比研究。结果表明:样本机场间运行效率值... 为探究海港型城市机场的运行效率,采用三阶段DEA(数据包络分析)模型及Malmquist生产力指数分别从静态、动态两个角度分析。选取沿海地区14座海港型城市的机场并选取内陆地区城市的18家机场进行对比研究。结果表明:样本机场间运行效率值差距较大;海港型城市机场的总体效率比内陆城市机场低9%;90%机场处于规模报酬递增阶段,机场生产效率总体呈现增长趋势。因此,内陆城市机场可以通过不断提升技术,改建或扩建提升效率;海港型城市机场应该充分发挥其规模优势。 展开更多
关键词 海港型城市 机场 运行效率 三阶段DEA(数据包络分析) MALMQUIST指数
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自贸区背景下我国海港运输业竞争力研究
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作者 李瑞雪 《对外经贸》 2023年第11期50-53,84,共5页
自由贸易试验区是我国对外开放的前沿阵地。在自由贸易试验区建设背景下,对我国海港运输业的竞争力作出研究。基于“钻石模型”定性分析,以我国9个代表性海港为研究对象,构建竞争力评价指标体系,用熵值法开展定量分析。研究表明:在自贸... 自由贸易试验区是我国对外开放的前沿阵地。在自由贸易试验区建设背景下,对我国海港运输业的竞争力作出研究。基于“钻石模型”定性分析,以我国9个代表性海港为研究对象,构建竞争力评价指标体系,用熵值法开展定量分析。研究表明:在自贸区建设过程中,我国海港运输业的竞争力不断增强,且有潜在竞争力可以挖掘,竞争力提升的突破口在于变革货运技术和刺激货运需求,在培养竞争力时规模与效率应该并重。 展开更多
关键词 自贸区 海港运输业 竞争力 钻石模型 熵值法
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海港纳潮量预测有限元分析
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作者 栾明珠 杨佳欢 《天津建设科技》 2023年第6期67-71,共5页
针对水系疏通引起纳潮量变化,以荣成市某地潟湖修复工程为背景,基于潮流水动力数学模型建立工程海域有限元分析模型,研究不同方案实施后的流场环境。结果表明,潟湖进行水系疏通后,各潮时总水量与纳潮量均较为显著的增大,各方案大潮纳潮... 针对水系疏通引起纳潮量变化,以荣成市某地潟湖修复工程为背景,基于潮流水动力数学模型建立工程海域有限元分析模型,研究不同方案实施后的流场环境。结果表明,潟湖进行水系疏通后,各潮时总水量与纳潮量均较为显著的增大,各方案大潮纳潮量均大于小潮纳潮量。 展开更多
关键词 海港 纳潮量 水系疏通
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