The accelerated decline of Arctic sea ice since the 1980s has paradoxically amplified greenhouse gas(GHG)emissions through increased shipping activities in this ecologically vulnerable region.This study investigates h...The accelerated decline of Arctic sea ice since the 1980s has paradoxically amplified greenhouse gas(GHG)emissions through increased shipping activities in this ecologically vulnerable region.This study investigates how to reconcile the decarbonization of Arctic shipping with conflicting environmental,economic,and geopolitical interests.Through systematic literature review and interest-balancing analysis,our findings identify three systemic barriers:(1)inadequate adaptation of International Maritime Organization(IMO)regulations to Arctic-specific environmental risks,(2)fragmented enforcement mechanisms among Arctic and non-Arctic States,and(3)technological limitations in clean fuel adoption for ice-class vessels.To address these challenges,a tripartite governance framework is proposed.First,legally binding amendments to International Convention for the Prevention of Pollution from Ships(MARPOL)Annex VI introducing Arctic-specific Energy Efficiency eXisting ship Index(EEXI)standards and extending energy efficiency regulations to fishing vessels.Second,a phased fuel transition prioritizing liquefied natural gas(LNG)and methanol,followed by hydrogen-ammonia synthetics.Third,enhanced multilateral cooperation through an Arctic Climate Shipping Alliance to coordinate joint research and development in cold-adapted technologies and ice-route optimization.By integrating United Nations Convention on the Law of the Sea(UNCLOS)obligations with IMO Polar Code implementation,this study advances a dynamic interest-balancing framework for policymakers,offering actionable pathways to achieve Paris Agreement targets while safeguarding Arctic ecosystems.展开更多
Singapore leverages its strategic location as a logistics and financial hub serving Southeast Asia to help companies enhance regional operations and build resilient supply chains,according to Teo Siong Seng,Chairman o...Singapore leverages its strategic location as a logistics and financial hub serving Southeast Asia to help companies enhance regional operations and build resilient supply chains,according to Teo Siong Seng,Chairman of the Singapore Business Federation and Executive Chairman of Pacific International Lines(PIL),at the“Singapore Night”event held on the sidelines of the 21st China-ASEAN Expo.He also expressed hopes to work hand in hand with Chinese enterprises to explore emerging areas of cooperation and realize a vision of mutual benefits.展开更多
To improve the efficiency of ship traffic in frequently traded sea areas and respond to the national“dual-carbon”strategy,a multi-objective ship route induction model is proposed.Considering the energy-saving and en...To improve the efficiency of ship traffic in frequently traded sea areas and respond to the national“dual-carbon”strategy,a multi-objective ship route induction model is proposed.Considering the energy-saving and environmental issues of ships,this study aims to improve the transportation efficiency of ships by providing a ship route induction method.Ship data from a certain bay during a defined period are collected,and an improved backpropagation neural network algorithm is used to forecast ship traffic.On the basis of the forecasted data and ship route induction objectives,dynamic programming of ship routes is performed.Experimental results show that the routes planned using this induction method reduce the combined cost by 17.55%compared with statically induced routes.This method has promising engineering applications in improving ship navigation efficiency,promoting energy conservation,and reducing emissions.展开更多
The global shipping industry,like many others,is under growing pressure to be more sustainable.Regulation,renewable energy advances and customer demand have created a golden opportunity to make shipping more environme...The global shipping industry,like many others,is under growing pressure to be more sustainable.Regulation,renewable energy advances and customer demand have created a golden opportunity to make shipping more environmentally sustainable,which,however,entails significant funding.Traditional ship financing has been done largely on a secured basis,with relatively few considerations around sustainability and environmental protection.This approach is ripe for innovation,given the industry’s significant environmental footprint.Evidence from other industries suggests that borrowers could benefit in pricing and structure from sustainable borrowing mechanisms,such as green bonds(where proceeds are dedicated to environmental and social investment).The trend is also increasing for sustainable loans,which can help to meet the growing demand for retrofit financing within existing vessels to meet CO_(2)emission targets.This paper aims to explore the attitudes of shipping industry participants,through the use of a survey,to green financing,that is,issuing unsecured and covered green,social,and sustainable bonds and other related financing instruments.These could effectively advance the environmental and social agenda in the industry,strengthening environmental,social,and governance(ESG)structures at the same time.Preliminary results suggest that there is considerable scope for improving knowledge and awareness among marine professionals to bridge the sustainability gap.展开更多
Structural properties of the ship container logistics network of China(SCLNC)are studied in the light of recent investigations of complex networks.SCLNC is composed of a set of routes and ports located along the sea o...Structural properties of the ship container logistics network of China(SCLNC)are studied in the light of recent investigations of complex networks.SCLNC is composed of a set of routes and ports located along the sea or river.Network properties including the degree distribution,degree correlations,clustering,shortest path length,centrality and betweenness are studied in different definition of network topology.It is found that geographical constraint plays an important role in the network topology of SCLNC.We also study the traffic flow of SCLNC based on the weighted network representation,and demonstrate the weight distribution can be described by power law or exponential function depending on the assumed definition of network topology.Other features related to SCLNC are also investigated.展开更多
This study selected the Sino-US route data from the top 30 global container liner companies between December 1,2019,and December 29,2019,as the data source utilizing the complex network research methodology.It constru...This study selected the Sino-US route data from the top 30 global container liner companies between December 1,2019,and December 29,2019,as the data source utilizing the complex network research methodology.It constructs a Sino-US container shipping network through voyage weighting and analyzes the essential structural characteristics to explore the network’s complex structural fea-tures.The network’s evolution is examined from three perspectives,namely,time,space,and event influence,aiming to comprehens-ively explore the network’s evolution mechanism.The results revealed that:1)the weighted Sino-US container shipping network exhib-its small-world and scale-free properties.Key hub ports in the United States include NEW YORK NY,SAVANNAH GA,LOS ANGELES CA,and OAKLAND CA,whereas SHANGHAI serving as the hub port in China.The geographical distribution of these hub ports is uneven.2)Concerning the evolution of the weighted Sino-US container shipping network,from a temporal perspective,the evolution of the regional structure of the entire Sino-US region and the Inland United States is in a stage of radiative expansion and de-velopment,with a need for further enhancement in competitiveness and development speed.The evolution of the regional structure of southern China and Europe is transitioning from the stage of radiative expansion and development to an advanced equilibrium stage.The shipping development in Northern China,the Western and Eastern United States,and Asia is undergoing significant changes but faces challenges of fierce competition and imbalances.From a spatial perspective,the rationality and effectiveness of the improved weighted Barrat-Barthelemy-Vespignani(BBV)model are confirmed through theoretical derivation.The applicability of the improved evolution model is verified by simulating the evolution of the weighted Sino-US container shipping network.From an event impact per-spective,the Corona Virus Disease 2019(COVID-19)pandemic has not fundamentally affected the spatial pattern of the weighted Sino-US container shipping network but has significantly impacted the network’s connectivity.The network lacks sufficient resilience and stability in emergency situations.3)Based on the analysis of the structural characteristics and evolution of the weighted Sino-US con-tainer shipping network,recommendations for network development are proposed from three aspects:emphasizing the development of hub ports,focusing on the balanced development of the network,and optimizing the layout of Chinese ports.展开更多
Arctic shipping poses environmental risks due to the region’s fragile ecosystems and rapid climate changes.Effective risk assessment tools are needed to ensure sustainable expansion and to carry out environmental imp...Arctic shipping poses environmental risks due to the region’s fragile ecosystems and rapid climate changes.Effective risk assessment tools are needed to ensure sustainable expansion and to carry out environmental impact assessments.This paper explores applications of Failure Modes and Effects Analysis(FMEA)and Systems-Theoretic Process Analysis(STPA)coupled with the consequences of a“Dynamic baseline approach”for Arctic shipping environmental impact assessment.Shipping entails complex interactions between environmental,technical,human,and organizational factors.FMEA identifies failure modes and their effects through component-level analysis.STPA examines how unsafe control actions can emerge from interactions between system components.Combining these techniques with a dynamic(variable)baseline,accounting for inherent ongoing changing Arctic conditions,offers a robust methodology.A qualitative case study shows that prioritizing hazards by risk,yields highest concerns,as increased greenhouse gas emissions,black carbon deposition on ice and snow,and response delays to accidents represent some of the most important identified threats to the environment.The use of FMEA and STPA are complementary,and differences are highlighted.The methodology applied,should be representative for the qualitative risk analysis methodology,and while the findings are impacted by the perspectives of the authors,the process followed is intended to identify and rank risks in a consistent manner.Mitigations measures must be in place to target these issues.Constant monitoring of the changing ecological and socioeconomic Arctic baselines supports the responses.This methodology offers a starting point for systematically addressing environmental impact risks in the data-limited Arctic.Integrating failure modes and effect analysis,system theories and dynamic baselines,account for identification of the complex interactions,influencing environmental risks in this rapidly evolving region.展开更多
Investigating how COVID-19 has influenced Liquefied Natural Gas(LNG)is significant for benefits evaluation for shipping companies and safety management for sustainable LNG shipping in case of accidents.This paper prop...Investigating how COVID-19 has influenced Liquefied Natural Gas(LNG)is significant for benefits evaluation for shipping companies and safety management for sustainable LNG shipping in case of accidents.This paper proposes a quantitative method to model the impact of COVID-19 on global LNG shipping efficiency based on the spatiotemporal characteristics of behavior mining for LNG ships.The time cost for LNG carriers serving inside LNG terminals is calculated based on the status of LNG carriers specifically based on arrival and departure times.Then,the time series analysis method is employed to extract the statistical characteristics of the COVID-19 severity index and time cost for LNG carriers inside LNG terminals.Finally,the impact of COVID-19 on global LNG shipping is explored through the Vector Autoregressive Model(VAR)combined with the sliding window.The results demonstrate that the COVID-19 pandemic has a certain influence on the service time for LNG carriers with time lags worldwide.The impact is spatial heterogeneity on a large scale or small scale across global,countries,and trading terminals.It can be used for decision-making in energy safety and LNG intelligent shipping management under unexpected global public health events in the future.The results provide support for intelligent decision-making for safety management under unexpected public health events,such as reducing the seafarer’s explosion to risk events and taking efficient actions to ensure the shipping flow to avoid the energy supply shortage.展开更多
Formaldehyde(HCHO)is considered one of the most abundant gas-phase carbonyl compounds in the atmosphere,which can be directly emitted through transportation sources.Long-Path Differential Optical Absorption Spectrosco...Formaldehyde(HCHO)is considered one of the most abundant gas-phase carbonyl compounds in the atmosphere,which can be directly emitted through transportation sources.Long-Path Differential Optical Absorption Spectroscopy(LP-DOAS)was used to observe HCHO in the river channel of Wusong Wharf in Shanghai,China for the whole year of 2019.Due to the impact of ship activity,the annual average HCHO level in the channel is about2.5 times higher than that in the nearby campus environment.To explain the sources of HCHO under different meteorological conditions,the tracer-pair of CO and O_(x)(NO_(2)+O_(3))was used on the clustered air masses.The results of the source appointment show that primary,secondary and background account for 24.14%(3.34±1.19 ppbv),44.78%(6.20±2.04ppbv)and 31.09%(4.31±2.33 ppbv)of the HCHO in the channel when the air masses were from the mixed direction of the city and channel,respectively.By performing background station subtraction at times of high primary HCHO values and resolving the plume peaks,directly emitted HCHO/NO_(2)in the channel environment and plume were determined to be mainly distributed between 0.2 and 0.3.General cargo ships with higher sailing speeds or main engine powers tend to have higher HCHO/NO_(2)levels.With the knowledge of NO_(2)(or NO_(x))emission levels from ships,this study may provide data support for the establishment of HCHO emission factors.展开更多
From the four aspects of material culture, institutional culture, behavioral culture and spiritual culture, the current situation and problems of China9s shipping culture were analyzed, and corresponding supportive s...From the four aspects of material culture, institutional culture, behavioral culture and spiritual culture, the current situation and problems of China9s shipping culture were analyzed, and corresponding supportive suggestions were proposed.展开更多
This study aims to investigate whether Corporate Social Responsibility(CSR)activities reduce supply chain disruptions by examining the impact of the Suez Canal obstruction on the Ever Given container ship in March 202...This study aims to investigate whether Corporate Social Responsibility(CSR)activities reduce supply chain disruptions by examining the impact of the Suez Canal obstruction on the Ever Given container ship in March 2021.This study conclude that the more responsible companies have higher returns and are less affected by this event than the less responsible companies;the less responsible companies have lower returns.The companies with better CSR have a lower impact on their supply chains when faced with disruptions in the supply chain.展开更多
To know the development of shipping economics,it is meaningful to overview shipping economics systemically from the perspective of markets and the shipping industry chain.To stimulate future research,this article pres...To know the development of shipping economics,it is meaningful to overview shipping economics systemically from the perspective of markets and the shipping industry chain.To stimulate future research,this article presents an introduction to the evolution of research models including static models,dynamic models and networks theory,the characteristics of shipping markets including volatility,seasonal and market cycle,and a comprehensive review of the development of shipping economics in the past four decades.We review shipping economics in the following steps:single market’s research is generalized including the freight market,financial market including FFA market and investment market,shipbuilding market,and secondhand market;two markets’correlation,information transmission,spillover effects,and other rules in shipping markets are surveyed;the correlation and risk of multi-markets are also investigated.Then,we summarize relationships of the shipping industry chain.Finally,we figure out issues in this field that need further study.展开更多
Risk management is to identify and assess risk in the process of shipping enterprise operation, then to make resolution to solve the risk, it is very important to the survival and development of shipping enterprises. ...Risk management is to identify and assess risk in the process of shipping enterprise operation, then to make resolution to solve the risk, it is very important to the survival and development of shipping enterprises. In this paper, it analyzes the characteristics of shipping enterprise risk, and puts forward countermeasures and suggestions to improve the shipping enterprise risk management.展开更多
Shipping accidents are unexpected events that result in financial loss and properties,damages and either loss of people.Several reasons as human errors,technical failures,natural conditions,shipping factors,route cond...Shipping accidents are unexpected events that result in financial loss and properties,damages and either loss of people.Several reasons as human errors,technical failures,natural conditions,shipping factors,route conditions and cargo related factors play role in these accidents.Unfortunately,shipping accidents are inevitable cases of maritime field,in contravention of creative and innovative technologies in shipping sector and execution of precautionary safety rules and regulations.Marine accidents adversely affect the human,the marine environment,properties and activities aboard ships and ashore in various forms and degree of extent.The effects of accidents vary from minor injuries to fatalities and from insignificant damage to very severe damage to the environment and property.The cost of accidents,including fatalities and injuries,damage to property and the environment,prevention and mitigating measures,and insurance accounts for a considerable share of transport costs.Main purpose of this paper is to investigate the effects of shipping accidents on marine environment in Albanian Seas.Within this scope firstly,the literature related shipping accidents and marine environment were handled.Then,the statistics of shipping accidents and marine environment in Albanian Seas were analyzed.Finally,future projections were provided in the light of presented matters and current developments.展开更多
From the three aspects of material culture,institutional culture and spiritual culture,the connotation and development of Shanghai sand junk culture and the position in Shanghai shipping culture were analyzed,and the ...From the three aspects of material culture,institutional culture and spiritual culture,the connotation and development of Shanghai sand junk culture and the position in Shanghai shipping culture were analyzed,and the relationship between Shanghai sand junk culture and the development of Shanghai International Shipping Center was studied according to the construction target and the soft power demand of Shanghai International Shipping Center.展开更多
In concert with developments in global trade and energy resource transportation, there has been a marked increase in reliance on overseas shipping. Unimpeded marine transportation has therefore become a key issue whic...In concert with developments in global trade and energy resource transportation, there has been a marked increase in reliance on overseas shipping. Unimpeded marine transportation has therefore become a key issue which influences national maritime interests including the security of trade and energy resources. A strategic shipping pivot thus performs a vital controlling function for global shipping networks. In this study strategic shipping pivots are defined and subdivided into sea hubs, channels and areas. We then develop a model to identify strategic shipping pivots on a global scale. The results show that, depending on differences in location, function, and type, the concept of strategic shipping pivot permits the identification of both spatial and structural differentiation with respect to strategic hubs, corridors, and seas. Now 44 strategic hubs have formed across the globe. These hubs have become the control centers of local shipping network organization. At the same time, seven strategic corridors containing most shipping routes and transportation capacity connect important sea areas, and permit a high-degree of control over the transport of strategic materials. The strategic seas, the Caribbean, the Mediterranean, Southeast Asia, and the Pacific provide vital import and export pathways, so that the formation of strategic shipping pivots is mainly influenced by factors such as physical geographical conditions, the spatial distribution of socio-economic activities, business organization, technical progress, geopolitical patterns and geopolitical disputes. Physical geographical conditions provide the potential foundations for strategic shipping pivots, while the spatial distribution of socio-economic activities and communications determine the strategic value of these points. Finally, business organization, technical progress, and geopolitical disputes all function to strengthen the strategic mechanisms and the mutagenicity of strategic shipping pivots.展开更多
The purpose of shipping risk early-warning is that some effective measures are taken to reduce risk probability before the risk brings heavy loss.The shipping risk has the dynamic characteristic,so the key of early-wa...The purpose of shipping risk early-warning is that some effective measures are taken to reduce risk probability before the risk brings heavy loss.The shipping risk has the dynamic characteristic,so the key of early-warning is to choice risk early-warning index correctly and evaluate risk grade quantitatively.According to the element extension theory,the rhombus inference model is applied to establish the index system.And the problem of risk grade evaluation can be solved by the assessment model of multi-index performance parameter,which is developed by the extension engineering method.Finally,the main shipping risks and their grades are identified by the example analysis based on the statistical data,which shows the effective and feasible of the shipping risk early-warning method.展开更多
Many studies have qualitatively explained that information and communication technology(ICT) has loosened the restrictions of distance and space on retailers' sales. Few empirical studies, however, have explored t...Many studies have qualitatively explained that information and communication technology(ICT) has loosened the restrictions of distance and space on retailers' sales. Few empirical studies, however, have explored the impact of shipping distance on online retailers' sales. This study examined the Maiyang(M-Y) store on Tmall in China as a case study to investigate the relationship between shipping distance and sales. The results showed that sales volume in 2014 at the county level did not strictly obey the distance decay law. The shipped distance of high-priced commodities may not be much longer than that of low-priced commodities. Within the scope of investigation, the relationships between income, cost, and net profit curves do not follow central place theory. Goods have neither thresholds nor ranges. The key factor in the spatial discrepancy of sales is the size of market. The impact of shipping distance on sales is not as strong as that of traditional retailers in Information Era.展开更多
It is very important to establish cooperative mechanism to guarantee allmembers to develop their e-conomies in the Yellow Sea Rim. In this paper, the development strategiesof shipping centers and transportation networ...It is very important to establish cooperative mechanism to guarantee allmembers to develop their e-conomies in the Yellow Sea Rim. In this paper, the development strategiesof shipping centers and transportation network are discussed based on economic globalizationtendency. The results argue that a united transportation network should be built in order to promotethe economic competition of Northeast Asia in the world. As a key component of the economiccooperation, a hierarchical shipping centers network should be established with Hong Kong, Shanghai,Pusan, Kobe, and Tokyo as cores. The authorities of China, Japan, R. 0. Korea and D. P. R. Koreashould make more efforts to build a set of cooperation institutions based on raising thetransportation efficiency.展开更多
基金supported by the Major Research Projects of the National Social Science Fund of China(NSFC,Grant no.23VHQ015).
文摘The accelerated decline of Arctic sea ice since the 1980s has paradoxically amplified greenhouse gas(GHG)emissions through increased shipping activities in this ecologically vulnerable region.This study investigates how to reconcile the decarbonization of Arctic shipping with conflicting environmental,economic,and geopolitical interests.Through systematic literature review and interest-balancing analysis,our findings identify three systemic barriers:(1)inadequate adaptation of International Maritime Organization(IMO)regulations to Arctic-specific environmental risks,(2)fragmented enforcement mechanisms among Arctic and non-Arctic States,and(3)technological limitations in clean fuel adoption for ice-class vessels.To address these challenges,a tripartite governance framework is proposed.First,legally binding amendments to International Convention for the Prevention of Pollution from Ships(MARPOL)Annex VI introducing Arctic-specific Energy Efficiency eXisting ship Index(EEXI)standards and extending energy efficiency regulations to fishing vessels.Second,a phased fuel transition prioritizing liquefied natural gas(LNG)and methanol,followed by hydrogen-ammonia synthetics.Third,enhanced multilateral cooperation through an Arctic Climate Shipping Alliance to coordinate joint research and development in cold-adapted technologies and ice-route optimization.By integrating United Nations Convention on the Law of the Sea(UNCLOS)obligations with IMO Polar Code implementation,this study advances a dynamic interest-balancing framework for policymakers,offering actionable pathways to achieve Paris Agreement targets while safeguarding Arctic ecosystems.
文摘Singapore leverages its strategic location as a logistics and financial hub serving Southeast Asia to help companies enhance regional operations and build resilient supply chains,according to Teo Siong Seng,Chairman of the Singapore Business Federation and Executive Chairman of Pacific International Lines(PIL),at the“Singapore Night”event held on the sidelines of the 21st China-ASEAN Expo.He also expressed hopes to work hand in hand with Chinese enterprises to explore emerging areas of cooperation and realize a vision of mutual benefits.
基金Supported by the National Key R&D Program of China project (2017YFC0805309)the National Natural Science Foundation of China (60602020)。
文摘To improve the efficiency of ship traffic in frequently traded sea areas and respond to the national“dual-carbon”strategy,a multi-objective ship route induction model is proposed.Considering the energy-saving and environmental issues of ships,this study aims to improve the transportation efficiency of ships by providing a ship route induction method.Ship data from a certain bay during a defined period are collected,and an improved backpropagation neural network algorithm is used to forecast ship traffic.On the basis of the forecasted data and ship route induction objectives,dynamic programming of ship routes is performed.Experimental results show that the routes planned using this induction method reduce the combined cost by 17.55%compared with statically induced routes.This method has promising engineering applications in improving ship navigation efficiency,promoting energy conservation,and reducing emissions.
文摘The global shipping industry,like many others,is under growing pressure to be more sustainable.Regulation,renewable energy advances and customer demand have created a golden opportunity to make shipping more environmentally sustainable,which,however,entails significant funding.Traditional ship financing has been done largely on a secured basis,with relatively few considerations around sustainability and environmental protection.This approach is ripe for innovation,given the industry’s significant environmental footprint.Evidence from other industries suggests that borrowers could benefit in pricing and structure from sustainable borrowing mechanisms,such as green bonds(where proceeds are dedicated to environmental and social investment).The trend is also increasing for sustainable loans,which can help to meet the growing demand for retrofit financing within existing vessels to meet CO_(2)emission targets.This paper aims to explore the attitudes of shipping industry participants,through the use of a survey,to green financing,that is,issuing unsecured and covered green,social,and sustainable bonds and other related financing instruments.These could effectively advance the environmental and social agenda in the industry,strengthening environmental,social,and governance(ESG)structures at the same time.Preliminary results suggest that there is considerable scope for improving knowledge and awareness among marine professionals to bridge the sustainability gap.
基金supported by Youth Foundation for Research of the Waterborne Transportation Institute.
文摘Structural properties of the ship container logistics network of China(SCLNC)are studied in the light of recent investigations of complex networks.SCLNC is composed of a set of routes and ports located along the sea or river.Network properties including the degree distribution,degree correlations,clustering,shortest path length,centrality and betweenness are studied in different definition of network topology.It is found that geographical constraint plays an important role in the network topology of SCLNC.We also study the traffic flow of SCLNC based on the weighted network representation,and demonstrate the weight distribution can be described by power law or exponential function depending on the assumed definition of network topology.Other features related to SCLNC are also investigated.
基金Under the auspices of National Natural Science Foundation of China(No.41201473,41371975)。
文摘This study selected the Sino-US route data from the top 30 global container liner companies between December 1,2019,and December 29,2019,as the data source utilizing the complex network research methodology.It constructs a Sino-US container shipping network through voyage weighting and analyzes the essential structural characteristics to explore the network’s complex structural fea-tures.The network’s evolution is examined from three perspectives,namely,time,space,and event influence,aiming to comprehens-ively explore the network’s evolution mechanism.The results revealed that:1)the weighted Sino-US container shipping network exhib-its small-world and scale-free properties.Key hub ports in the United States include NEW YORK NY,SAVANNAH GA,LOS ANGELES CA,and OAKLAND CA,whereas SHANGHAI serving as the hub port in China.The geographical distribution of these hub ports is uneven.2)Concerning the evolution of the weighted Sino-US container shipping network,from a temporal perspective,the evolution of the regional structure of the entire Sino-US region and the Inland United States is in a stage of radiative expansion and de-velopment,with a need for further enhancement in competitiveness and development speed.The evolution of the regional structure of southern China and Europe is transitioning from the stage of radiative expansion and development to an advanced equilibrium stage.The shipping development in Northern China,the Western and Eastern United States,and Asia is undergoing significant changes but faces challenges of fierce competition and imbalances.From a spatial perspective,the rationality and effectiveness of the improved weighted Barrat-Barthelemy-Vespignani(BBV)model are confirmed through theoretical derivation.The applicability of the improved evolution model is verified by simulating the evolution of the weighted Sino-US container shipping network.From an event impact per-spective,the Corona Virus Disease 2019(COVID-19)pandemic has not fundamentally affected the spatial pattern of the weighted Sino-US container shipping network but has significantly impacted the network’s connectivity.The network lacks sufficient resilience and stability in emergency situations.3)Based on the analysis of the structural characteristics and evolution of the weighted Sino-US con-tainer shipping network,recommendations for network development are proposed from three aspects:emphasizing the development of hub ports,focusing on the balanced development of the network,and optimizing the layout of Chinese ports.
基金supported in parts by funds provided by“The Program for Maritim Competence(MARKOM II),”(https://www.markomii.no/om-markomii/),project 10039funds made available to UIT,The Arctic University of Norway。
文摘Arctic shipping poses environmental risks due to the region’s fragile ecosystems and rapid climate changes.Effective risk assessment tools are needed to ensure sustainable expansion and to carry out environmental impact assessments.This paper explores applications of Failure Modes and Effects Analysis(FMEA)and Systems-Theoretic Process Analysis(STPA)coupled with the consequences of a“Dynamic baseline approach”for Arctic shipping environmental impact assessment.Shipping entails complex interactions between environmental,technical,human,and organizational factors.FMEA identifies failure modes and their effects through component-level analysis.STPA examines how unsafe control actions can emerge from interactions between system components.Combining these techniques with a dynamic(variable)baseline,accounting for inherent ongoing changing Arctic conditions,offers a robust methodology.A qualitative case study shows that prioritizing hazards by risk,yields highest concerns,as increased greenhouse gas emissions,black carbon deposition on ice and snow,and response delays to accidents represent some of the most important identified threats to the environment.The use of FMEA and STPA are complementary,and differences are highlighted.The methodology applied,should be representative for the qualitative risk analysis methodology,and while the findings are impacted by the perspectives of the authors,the process followed is intended to identify and rank risks in a consistent manner.Mitigations measures must be in place to target these issues.Constant monitoring of the changing ecological and socioeconomic Arctic baselines supports the responses.This methodology offers a starting point for systematically addressing environmental impact risks in the data-limited Arctic.Integrating failure modes and effect analysis,system theories and dynamic baselines,account for identification of the complex interactions,influencing environmental risks in this rapidly evolving region.
基金National Natural Science Foundation of China(No.42101429 and No.42371415)Young Elite Scientists Sponsorship Program by China Association for Science and Technology(CAST)(No.YESS20220491)+2 种基金Project of Education Department of Hainan Province(No.Hnjg2024-284)Open Fund of State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan University(No.21S04)National Key Research and Development Program of China(No.2022YFC3302703).
文摘Investigating how COVID-19 has influenced Liquefied Natural Gas(LNG)is significant for benefits evaluation for shipping companies and safety management for sustainable LNG shipping in case of accidents.This paper proposes a quantitative method to model the impact of COVID-19 on global LNG shipping efficiency based on the spatiotemporal characteristics of behavior mining for LNG ships.The time cost for LNG carriers serving inside LNG terminals is calculated based on the status of LNG carriers specifically based on arrival and departure times.Then,the time series analysis method is employed to extract the statistical characteristics of the COVID-19 severity index and time cost for LNG carriers inside LNG terminals.Finally,the impact of COVID-19 on global LNG shipping is explored through the Vector Autoregressive Model(VAR)combined with the sliding window.The results demonstrate that the COVID-19 pandemic has a certain influence on the service time for LNG carriers with time lags worldwide.The impact is spatial heterogeneity on a large scale or small scale across global,countries,and trading terminals.It can be used for decision-making in energy safety and LNG intelligent shipping management under unexpected global public health events in the future.The results provide support for intelligent decision-making for safety management under unexpected public health events,such as reducing the seafarer’s explosion to risk events and taking efficient actions to ensure the shipping flow to avoid the energy supply shortage.
基金supported by the National Natural Science Foundation of China(Nos.21976031,42075097,42077195,22176037)the Key-Area Research and Development Program of Guangdong Province(No.2020B1111360001)。
文摘Formaldehyde(HCHO)is considered one of the most abundant gas-phase carbonyl compounds in the atmosphere,which can be directly emitted through transportation sources.Long-Path Differential Optical Absorption Spectroscopy(LP-DOAS)was used to observe HCHO in the river channel of Wusong Wharf in Shanghai,China for the whole year of 2019.Due to the impact of ship activity,the annual average HCHO level in the channel is about2.5 times higher than that in the nearby campus environment.To explain the sources of HCHO under different meteorological conditions,the tracer-pair of CO and O_(x)(NO_(2)+O_(3))was used on the clustered air masses.The results of the source appointment show that primary,secondary and background account for 24.14%(3.34±1.19 ppbv),44.78%(6.20±2.04ppbv)and 31.09%(4.31±2.33 ppbv)of the HCHO in the channel when the air masses were from the mixed direction of the city and channel,respectively.By performing background station subtraction at times of high primary HCHO values and resolving the plume peaks,directly emitted HCHO/NO_(2)in the channel environment and plume were determined to be mainly distributed between 0.2 and 0.3.General cargo ships with higher sailing speeds or main engine powers tend to have higher HCHO/NO_(2)levels.With the knowledge of NO_(2)(or NO_(x))emission levels from ships,this study may provide data support for the establishment of HCHO emission factors.
基金Supported by Educational Science Research Project of Shanghai City(C16064)
文摘From the four aspects of material culture, institutional culture, behavioral culture and spiritual culture, the current situation and problems of China9s shipping culture were analyzed, and corresponding supportive suggestions were proposed.
文摘This study aims to investigate whether Corporate Social Responsibility(CSR)activities reduce supply chain disruptions by examining the impact of the Suez Canal obstruction on the Ever Given container ship in March 2021.This study conclude that the more responsible companies have higher returns and are less affected by this event than the less responsible companies;the less responsible companies have lower returns.The companies with better CSR have a lower impact on their supply chains when faced with disruptions in the supply chain.
基金the Natural Science Foundation of Shanghai(No.18ZR1420200)。
文摘To know the development of shipping economics,it is meaningful to overview shipping economics systemically from the perspective of markets and the shipping industry chain.To stimulate future research,this article presents an introduction to the evolution of research models including static models,dynamic models and networks theory,the characteristics of shipping markets including volatility,seasonal and market cycle,and a comprehensive review of the development of shipping economics in the past four decades.We review shipping economics in the following steps:single market’s research is generalized including the freight market,financial market including FFA market and investment market,shipbuilding market,and secondhand market;two markets’correlation,information transmission,spillover effects,and other rules in shipping markets are surveyed;the correlation and risk of multi-markets are also investigated.Then,we summarize relationships of the shipping industry chain.Finally,we figure out issues in this field that need further study.
文摘Risk management is to identify and assess risk in the process of shipping enterprise operation, then to make resolution to solve the risk, it is very important to the survival and development of shipping enterprises. In this paper, it analyzes the characteristics of shipping enterprise risk, and puts forward countermeasures and suggestions to improve the shipping enterprise risk management.
文摘Shipping accidents are unexpected events that result in financial loss and properties,damages and either loss of people.Several reasons as human errors,technical failures,natural conditions,shipping factors,route conditions and cargo related factors play role in these accidents.Unfortunately,shipping accidents are inevitable cases of maritime field,in contravention of creative and innovative technologies in shipping sector and execution of precautionary safety rules and regulations.Marine accidents adversely affect the human,the marine environment,properties and activities aboard ships and ashore in various forms and degree of extent.The effects of accidents vary from minor injuries to fatalities and from insignificant damage to very severe damage to the environment and property.The cost of accidents,including fatalities and injuries,damage to property and the environment,prevention and mitigating measures,and insurance accounts for a considerable share of transport costs.Main purpose of this paper is to investigate the effects of shipping accidents on marine environment in Albanian Seas.Within this scope firstly,the literature related shipping accidents and marine environment were handled.Then,the statistics of shipping accidents and marine environment in Albanian Seas were analyzed.Finally,future projections were provided in the light of presented matters and current developments.
基金Supported by Major Program of National Social Science Foundation of China(20&ZD130)。
文摘From the three aspects of material culture,institutional culture and spiritual culture,the connotation and development of Shanghai sand junk culture and the position in Shanghai shipping culture were analyzed,and the relationship between Shanghai sand junk culture and the development of Shanghai International Shipping Center was studied according to the construction target and the soft power demand of Shanghai International Shipping Center.
基金The Strategic Priority Research Program of the CAS,No.XDA20010101National Natural Science Foundation of China,No.41571113The Key Project of the Chinese Academy of Sciences,No.ZDRW-ZS-2017-4
文摘In concert with developments in global trade and energy resource transportation, there has been a marked increase in reliance on overseas shipping. Unimpeded marine transportation has therefore become a key issue which influences national maritime interests including the security of trade and energy resources. A strategic shipping pivot thus performs a vital controlling function for global shipping networks. In this study strategic shipping pivots are defined and subdivided into sea hubs, channels and areas. We then develop a model to identify strategic shipping pivots on a global scale. The results show that, depending on differences in location, function, and type, the concept of strategic shipping pivot permits the identification of both spatial and structural differentiation with respect to strategic hubs, corridors, and seas. Now 44 strategic hubs have formed across the globe. These hubs have become the control centers of local shipping network organization. At the same time, seven strategic corridors containing most shipping routes and transportation capacity connect important sea areas, and permit a high-degree of control over the transport of strategic materials. The strategic seas, the Caribbean, the Mediterranean, Southeast Asia, and the Pacific provide vital import and export pathways, so that the formation of strategic shipping pivots is mainly influenced by factors such as physical geographical conditions, the spatial distribution of socio-economic activities, business organization, technical progress, geopolitical patterns and geopolitical disputes. Physical geographical conditions provide the potential foundations for strategic shipping pivots, while the spatial distribution of socio-economic activities and communications determine the strategic value of these points. Finally, business organization, technical progress, and geopolitical disputes all function to strengthen the strategic mechanisms and the mutagenicity of strategic shipping pivots.
基金the Natural Science Foundation of Tianjin (No.07JCYBJC13100)
文摘The purpose of shipping risk early-warning is that some effective measures are taken to reduce risk probability before the risk brings heavy loss.The shipping risk has the dynamic characteristic,so the key of early-warning is to choice risk early-warning index correctly and evaluate risk grade quantitatively.According to the element extension theory,the rhombus inference model is applied to establish the index system.And the problem of risk grade evaluation can be solved by the assessment model of multi-index performance parameter,which is developed by the extension engineering method.Finally,the main shipping risks and their grades are identified by the example analysis based on the statistical data,which shows the effective and feasible of the shipping risk early-warning method.
基金Under the auspices of the National Planning Office of Philosophy and Social Science(No.17BRK010)National Natural Science Foundation of China(No.41601161)+1 种基金Natural Science Foundation of Guangdong Province(No.2017A030313224)Guangdong Planning Office of Philosophy and Social Science(No.2017GZZK16)
文摘Many studies have qualitatively explained that information and communication technology(ICT) has loosened the restrictions of distance and space on retailers' sales. Few empirical studies, however, have explored the impact of shipping distance on online retailers' sales. This study examined the Maiyang(M-Y) store on Tmall in China as a case study to investigate the relationship between shipping distance and sales. The results showed that sales volume in 2014 at the county level did not strictly obey the distance decay law. The shipped distance of high-priced commodities may not be much longer than that of low-priced commodities. Within the scope of investigation, the relationships between income, cost, and net profit curves do not follow central place theory. Goods have neither thresholds nor ranges. The key factor in the spatial discrepancy of sales is the size of market. The impact of shipping distance on sales is not as strong as that of traditional retailers in Information Era.
文摘It is very important to establish cooperative mechanism to guarantee allmembers to develop their e-conomies in the Yellow Sea Rim. In this paper, the development strategiesof shipping centers and transportation network are discussed based on economic globalizationtendency. The results argue that a united transportation network should be built in order to promotethe economic competition of Northeast Asia in the world. As a key component of the economiccooperation, a hierarchical shipping centers network should be established with Hong Kong, Shanghai,Pusan, Kobe, and Tokyo as cores. The authorities of China, Japan, R. 0. Korea and D. P. R. Koreashould make more efforts to build a set of cooperation institutions based on raising thetransportation efficiency.
