Cruise value chain is to take the exchange of cruise products and services as the core in a certain spatial scope,and enterprises with core advantages within or between different industries establish associations in a...Cruise value chain is to take the exchange of cruise products and services as the core in a certain spatial scope,and enterprises with core advantages within or between different industries establish associations in accordance with certain technical and economic conditions,so as to realise the multi-dimensional extension and value appreciation of the cruise value chain in the vertical and horizontal links,and ultimately establish a chain-network type of enterprise strategic alliance.This paper tries to analyse the value-added factors of the cruise industry chain by constructing a multi-level hierarchical structural model with reference to the influencing factor analysis methods of relevant literature-DEMATEL(Decision Making Experiment and Evaluation Experiment)and ISM(Interpretative Structural Model).The study shows that the innovation and scale value-added module in the upstream of the cruise industry chain is the core module of value-added of the whole cruise industry chain,and the value-added mainly originates from the design and manufacturing of cruise ships.The middle reaches of the cruise industry chain are mainly cruise operation enterprises,and the specificity of cruise operation determines that its brand value-added is mainly accomplished through the global layout of multinational corporations,and the cruise brand is able to drive the consumption demand and has value-added ability.The downstream value-added of the cruise industry chain is mainly realised through the increase in profits of cruise tourism service products.展开更多
The work is a case study of a cruise ship supplied by liquefied natural gas(LNG)and equipped with a solid oxide fuel cell(SOFC).It is supposed that a 20 MW SOFC plant is installed on-board to supply hotel loads and as...The work is a case study of a cruise ship supplied by liquefied natural gas(LNG)and equipped with a solid oxide fuel cell(SOFC).It is supposed that a 20 MW SOFC plant is installed on-board to supply hotel loads and assisting three dual-fuel(DF)diesel/LNG generator sets.LNG consumption and emissions are estimated both for the SOFC plant and DF generator sets.It results that the use of LNG-SOFC plant in comparison to DF generator sets allows to limit significantly the SO_(x),CO,NO_(x),PM emissions and to reduce the emission of CO_(2)by about 11%.A prediction of the weight and volume of the SOFC plant is conducted and a preliminary modification of the general arrangement of the cruise ship is suggested,according to the latest international rules.It results that the SOFC plant is heavier and occupies more volume on board than a DF gen-set;nevertheless,these features do not affect the floating and the stability of the cruise ship.展开更多
Nowadays the protection of the marine environment raises increasing academic and public attention.The issue of organic micropollutants is of equally high importance for the marine ecosystems.Maritime vessels are consi...Nowadays the protection of the marine environment raises increasing academic and public attention.The issue of organic micropollutants is of equally high importance for the marine ecosystems.Maritime vessels are considered to significant sources of micropollutants especially if the ship carries many passengers,which is often true for cruise ships which frequent attractive and sensitive sea areas.The emission pathways for micropollutants include wastewater discharges and sewage sludge disposal.The findings of the German research and development project NAUTEK contribute to bridging the knowledge gap about micropollutant emissions from cruise ships.As expected,micropollutants were detected in both the blackwater and greywater on board,emitted from either the passengers or certain ship operations.In total,16 out of 21 target substances were detected.Peak concentrations of pharmaceuticals could be found mainly in blackwater(peak conc.Carbamazepine 3.9 mg/L,Ibuprofen 29 mg/L,Diclofenac 0.04 mg/L),while greywater is mainly characterized by substances such as ointment residues,UV-filters and flame retardants(peak conc.Diclofenac 0.65 mg/L,Bisphenol A 8 mg/L,Tris(1-chloro-2-propyl)phosphate 136 mg/L).Further analyses suggest a gradual removal of the micropollutants by the onboard MBR plant(MBR effluent peak conc.Carbamazepine 0.47 mg/L,Ibuprofen 6.8 mg/L,Diclofenac 0.3 mg/L).Findings of this research provide a critical stepstone for shaping technical solutions for onboard micropollutants removal and water resource recycling.展开更多
Italian liner Costa Allegra will start its maiden voyage on the northern route this August.China Merchants International Travel,the general agent for Costa Allegra in north China,has made a block booking of the most p...Italian liner Costa Allegra will start its maiden voyage on the northern route this August.China Merchants International Travel,the general agent for Costa Allegra in north China,has made a block booking of the most popu-展开更多
基金Tropical Ocean University 2023 Provincial Key Discipline Construction Project-Business Administration.Project of the National Social Science Foundation:Research on the Cooperation Mechanism and Realisation Path for the Cooperative Development of the Cruise Industry in the Countries Surrounding the South China Sea(19XJY001)Key Laboratory of the Ministry of Culture and Tourism on Data Mining,Monitoring and Early Warning Technology for Island Tourism Resources(KLITRDMM 2022-15).
文摘Cruise value chain is to take the exchange of cruise products and services as the core in a certain spatial scope,and enterprises with core advantages within or between different industries establish associations in accordance with certain technical and economic conditions,so as to realise the multi-dimensional extension and value appreciation of the cruise value chain in the vertical and horizontal links,and ultimately establish a chain-network type of enterprise strategic alliance.This paper tries to analyse the value-added factors of the cruise industry chain by constructing a multi-level hierarchical structural model with reference to the influencing factor analysis methods of relevant literature-DEMATEL(Decision Making Experiment and Evaluation Experiment)and ISM(Interpretative Structural Model).The study shows that the innovation and scale value-added module in the upstream of the cruise industry chain is the core module of value-added of the whole cruise industry chain,and the value-added mainly originates from the design and manufacturing of cruise ships.The middle reaches of the cruise industry chain are mainly cruise operation enterprises,and the specificity of cruise operation determines that its brand value-added is mainly accomplished through the global layout of multinational corporations,and the cruise brand is able to drive the consumption demand and has value-added ability.The downstream value-added of the cruise industry chain is mainly realised through the increase in profits of cruise tourism service products.
文摘The work is a case study of a cruise ship supplied by liquefied natural gas(LNG)and equipped with a solid oxide fuel cell(SOFC).It is supposed that a 20 MW SOFC plant is installed on-board to supply hotel loads and assisting three dual-fuel(DF)diesel/LNG generator sets.LNG consumption and emissions are estimated both for the SOFC plant and DF generator sets.It results that the use of LNG-SOFC plant in comparison to DF generator sets allows to limit significantly the SO_(x),CO,NO_(x),PM emissions and to reduce the emission of CO_(2)by about 11%.A prediction of the weight and volume of the SOFC plant is conducted and a preliminary modification of the general arrangement of the cruise ship is suggested,according to the latest international rules.It results that the SOFC plant is heavier and occupies more volume on board than a DF gen-set;nevertheless,these features do not affect the floating and the stability of the cruise ship.
基金This work was supported by the German Federal Ministry of Economic Affairs and Energy(BMWi)in the Project NAUTEK Sustainable Wastewater Treatment and Recycling on Cruise Liners(Grant No.03SX360)upon a decision of the German Bundestag.We appreciate the support from the funding agency for the possibility to carry out the work described here.We also thank the ships'crews for their great support.
文摘Nowadays the protection of the marine environment raises increasing academic and public attention.The issue of organic micropollutants is of equally high importance for the marine ecosystems.Maritime vessels are considered to significant sources of micropollutants especially if the ship carries many passengers,which is often true for cruise ships which frequent attractive and sensitive sea areas.The emission pathways for micropollutants include wastewater discharges and sewage sludge disposal.The findings of the German research and development project NAUTEK contribute to bridging the knowledge gap about micropollutant emissions from cruise ships.As expected,micropollutants were detected in both the blackwater and greywater on board,emitted from either the passengers or certain ship operations.In total,16 out of 21 target substances were detected.Peak concentrations of pharmaceuticals could be found mainly in blackwater(peak conc.Carbamazepine 3.9 mg/L,Ibuprofen 29 mg/L,Diclofenac 0.04 mg/L),while greywater is mainly characterized by substances such as ointment residues,UV-filters and flame retardants(peak conc.Diclofenac 0.65 mg/L,Bisphenol A 8 mg/L,Tris(1-chloro-2-propyl)phosphate 136 mg/L).Further analyses suggest a gradual removal of the micropollutants by the onboard MBR plant(MBR effluent peak conc.Carbamazepine 0.47 mg/L,Ibuprofen 6.8 mg/L,Diclofenac 0.3 mg/L).Findings of this research provide a critical stepstone for shaping technical solutions for onboard micropollutants removal and water resource recycling.
文摘Italian liner Costa Allegra will start its maiden voyage on the northern route this August.China Merchants International Travel,the general agent for Costa Allegra in north China,has made a block booking of the most popu-
