As a basic and strategic industry,the logistics industry is closely linked with and influenced by other industries while influencing them.It plays an irreplaceable role in ensuring smooth operation of the national eco...As a basic and strategic industry,the logistics industry is closely linked with and influenced by other industries while influencing them.It plays an irreplaceable role in ensuring smooth operation of the national economy and satisfying the demand of consumers.Its development level directly affects that of the national economy.Based on the analysis into input-output tables from 1997 to 2010,the association effect between the logistics industry and its related industries is measured and the dynamic degree of influence logistics industry exerts on relevant industries at the different periods is observed,both of which enable an objective judgement to be gained in identifying the status of logistics industry in the national economy.The main conclusions are as follows.(1)The status of logistics industry remains to be further promoted.(2)The logistics industry turns into one with“low added value and strong leading force”.(3)Industrial logistics is the main trend while logistics of service industry change.(4)The logistics industry is closely linked with the second industry.The author then puts forward countermeasures and suggestions:(1)Develop Third-Part Logistic in order to promote the socialisation and specialisation level of logistics distribution;(2)Speed up the development of electronic business logistics,set up reasonable layout of transportation infrastructure and build entitative logistics network;(3)Accelerate the logistics informationization and standardization and improve management and service levels of logistics enterprises.展开更多
Liquid-solid fluidized beds(LSFB)modeling validation is crucial for establishing design rules and monitor-ing tools.However,it generally relies on comparing global variables,which overlook dynamic features that influe...Liquid-solid fluidized beds(LSFB)modeling validation is crucial for establishing design rules and monitor-ing tools.However,it generally relies on comparing global variables,which overlook dynamic features that influence reaction outputs.This work aims to implement time series analysis tools to compare Radioactive Particle Tracking data with a simulation consisting of Computational Fluid Dynamics cou-pled with Discrete-Element Method.Experiments have been performed in a pilot-scale LSFB of calcium alginate spheres fluidized with a calcium chloride solution.The Diks'test indicates that the simulation can capture the LSFB behavior.It also allows diagnosing flow regime transitions from the simulation.Trends of solid dispersion coefficients and mixing times predicted by the simulation are in good agreement with the experiments.展开更多
文摘As a basic and strategic industry,the logistics industry is closely linked with and influenced by other industries while influencing them.It plays an irreplaceable role in ensuring smooth operation of the national economy and satisfying the demand of consumers.Its development level directly affects that of the national economy.Based on the analysis into input-output tables from 1997 to 2010,the association effect between the logistics industry and its related industries is measured and the dynamic degree of influence logistics industry exerts on relevant industries at the different periods is observed,both of which enable an objective judgement to be gained in identifying the status of logistics industry in the national economy.The main conclusions are as follows.(1)The status of logistics industry remains to be further promoted.(2)The logistics industry turns into one with“low added value and strong leading force”.(3)Industrial logistics is the main trend while logistics of service industry change.(4)The logistics industry is closely linked with the second industry.The author then puts forward countermeasures and suggestions:(1)Develop Third-Part Logistic in order to promote the socialisation and specialisation level of logistics distribution;(2)Speed up the development of electronic business logistics,set up reasonable layout of transportation infrastructure and build entitative logistics network;(3)Accelerate the logistics informationization and standardization and improve management and service levels of logistics enterprises.
基金Financial support from Hogskolestiftelsen iÖster-botten(2804720/28600122)the Harry Schaumans Foundation(2804720/28002257)+2 种基金Suomen Kulttuurirahasto(00210970)CON-ICET(PIP1122015-0100902CO)Universidad de Buenos Aires(UBACyT 20020130100544BA)is gratefully acknowledged.
文摘Liquid-solid fluidized beds(LSFB)modeling validation is crucial for establishing design rules and monitor-ing tools.However,it generally relies on comparing global variables,which overlook dynamic features that influence reaction outputs.This work aims to implement time series analysis tools to compare Radioactive Particle Tracking data with a simulation consisting of Computational Fluid Dynamics cou-pled with Discrete-Element Method.Experiments have been performed in a pilot-scale LSFB of calcium alginate spheres fluidized with a calcium chloride solution.The Diks'test indicates that the simulation can capture the LSFB behavior.It also allows diagnosing flow regime transitions from the simulation.Trends of solid dispersion coefficients and mixing times predicted by the simulation are in good agreement with the experiments.
