Amazon Germany has formulated a series of marketing strategies based on the shopping habits of German consumers and it has achieved success.This article summarizes the current marketing strategies of Amazon in Germany...Amazon Germany has formulated a series of marketing strategies based on the shopping habits of German consumers and it has achieved success.This article summarizes the current marketing strategies of Amazon in Germany,and explores the key factors for the success of this marketing strategy.By comparing with other e-commerce platforms,this article critically analyzes the innovation and deficiency of Amazon in Germany.展开更多
To control the morphology of cellulose membranes used for separation,they were prepared by the NMMO method using water,methanol,ethanol and their binary solution as coagulation baths.Morphologies of the surface and cr...To control the morphology of cellulose membranes used for separation,they were prepared by the NMMO method using water,methanol,ethanol and their binary solution as coagulation baths.Morphologies of the surface and cross section of dry membranes were observed.The pore structure parameters of wet membranes were determined.By comparison,the process and mechanism of pore formation in dry membranes were suggested,and the relativity of cellulose crystal size to average pore diameter in wet membranes and their influences were discussed.The results show that the morphology of dry membranes is clearly varied with coagulation baths,while the porosity of wet membranes is almost constant.Porous structures can appear in the compact region of dry membranes due to swelling from water.These pores have a virtual effect on the average pore diameter of wet membranes.By changing the composition of coagulation baths,the microstructure of cellulose membranes in a dry or wet environment can be adjusted separately.展开更多
文摘Amazon Germany has formulated a series of marketing strategies based on the shopping habits of German consumers and it has achieved success.This article summarizes the current marketing strategies of Amazon in Germany,and explores the key factors for the success of this marketing strategy.By comparing with other e-commerce platforms,this article critically analyzes the innovation and deficiency of Amazon in Germany.
文摘To control the morphology of cellulose membranes used for separation,they were prepared by the NMMO method using water,methanol,ethanol and their binary solution as coagulation baths.Morphologies of the surface and cross section of dry membranes were observed.The pore structure parameters of wet membranes were determined.By comparison,the process and mechanism of pore formation in dry membranes were suggested,and the relativity of cellulose crystal size to average pore diameter in wet membranes and their influences were discussed.The results show that the morphology of dry membranes is clearly varied with coagulation baths,while the porosity of wet membranes is almost constant.Porous structures can appear in the compact region of dry membranes due to swelling from water.These pores have a virtual effect on the average pore diameter of wet membranes.By changing the composition of coagulation baths,the microstructure of cellulose membranes in a dry or wet environment can be adjusted separately.
