自20世纪90年代以来,电子商务在全球迅猛发展并掀起一场新的商业革命。与此同时,业界不断在探索新的电子商务模式,近年来O2O(online to offline/offline to online)模式受到高度重视,并以爆棚式速度发展。O2O模式改变了原有电子商务环...自20世纪90年代以来,电子商务在全球迅猛发展并掀起一场新的商业革命。与此同时,业界不断在探索新的电子商务模式,近年来O2O(online to offline/offline to online)模式受到高度重视,并以爆棚式速度发展。O2O模式改变了原有电子商务环境下供应链的结构和特征,使供应链成员间的竞合博弈关系变得更为复杂,供应链管理的难度进一步加大。鉴于此,采用系统综述的方法,结合O2O模式的不同表现形式,从线上到线下、线下到线上、线上线下融合等3个方面对O2O供应链管理领域的文献进行梳理,旨在丰富和充实有关O2O供应链管理的理论研究成果,为渠道融合背景下线上线下渠道合作提供理论支撑。展开更多
在后疫情时代的背景下,传统线下商家的营销模式需要适应新形势,利用各种互联网平台增加用户触点,同时利用内容为店铺进行用户引流。作者分析了当前商家营销环境的现状及用户行为变化,总结了优秀线上销售平台的成功经验,对传统线下商家...在后疫情时代的背景下,传统线下商家的营销模式需要适应新形势,利用各种互联网平台增加用户触点,同时利用内容为店铺进行用户引流。作者分析了当前商家营销环境的现状及用户行为变化,总结了优秀线上销售平台的成功经验,对传统线下商家提出了积极向线上转型、做好内容运营、保障商品质量及发货效率、建立品牌宣传矩阵、持续完善线上店铺运营管理五方面的参考建议。希望可以帮助传统线下商家,打造一个行之有效的OAO(Online And Offline)协同销售模式,提升商品营销效果。展开更多
To relieve the shortage in crude supply, sharp reduction of crude production by Daqing Oi1 Field in particular, Sinopec Corp has recently signed anagreement with OAO Yukos Oi1 Company to import 17 million tons of crud...To relieve the shortage in crude supply, sharp reduction of crude production by Daqing Oi1 Field in particular, Sinopec Corp has recently signed anagreement with OAO Yukos Oi1 Company to import 17 million tons of crude oil from Russia's second largest oil firm via a railwav over the next four vears.展开更多
Numerous aspects of the water oxidation mechanism in photosystemⅡhave not been fully elucidated,especially the O-O bond formation pathway.However,a body of experimental evidences have identified the O5 and W2 ligands...Numerous aspects of the water oxidation mechanism in photosystemⅡhave not been fully elucidated,especially the O-O bond formation pathway.However,a body of experimental evidences have identified the O5 and W2 ligands of the oxygen-evolving complex as the highly probable substrate candidates.In this work,we studied O-O bond formation between O5 and W2 based on the native Mn4 Ca cluster by density functional calculations.Structural rearrangements before the formation of the S_(4) state were found as a prerequisite for O-O bond formation between O5 and W2,regardless if the suggested pathways involving the typical Mnl(Ⅳ)-O·species or the recently proposed Mn4(Ⅶ)(O)2 species.Possible alternatives for the S2→S_(3) and S_(3)→S_(4) transitions accounting for such required rearrangements are discussed.These findings reflect that the structural flexibility of the Mn4 Ca cluster is essential to allow structural rearrangements during the catalytic cycle.展开更多
The nation should maintain close cooperation with Russia in the energy sector and accelerate a new natural gas pipeline project,said China’s Vice-Premier Zhang Gaoli in mid-February in Beijing during his meeting with...The nation should maintain close cooperation with Russia in the energy sector and accelerate a new natural gas pipeline project,said China’s Vice-Premier Zhang Gaoli in mid-February in Beijing during his meeting with Alexei Miller,president of Russia’s state-owned natural gas giant Gazprom OAO.Zhang said the two neighbors achieved great success in the energy industry last year and will focus on making their cooperation more effective for mutual benefit.Based on bilateral agreements,China and展开更多
文摘自20世纪90年代以来,电子商务在全球迅猛发展并掀起一场新的商业革命。与此同时,业界不断在探索新的电子商务模式,近年来O2O(online to offline/offline to online)模式受到高度重视,并以爆棚式速度发展。O2O模式改变了原有电子商务环境下供应链的结构和特征,使供应链成员间的竞合博弈关系变得更为复杂,供应链管理的难度进一步加大。鉴于此,采用系统综述的方法,结合O2O模式的不同表现形式,从线上到线下、线下到线上、线上线下融合等3个方面对O2O供应链管理领域的文献进行梳理,旨在丰富和充实有关O2O供应链管理的理论研究成果,为渠道融合背景下线上线下渠道合作提供理论支撑。
文摘在后疫情时代的背景下,传统线下商家的营销模式需要适应新形势,利用各种互联网平台增加用户触点,同时利用内容为店铺进行用户引流。作者分析了当前商家营销环境的现状及用户行为变化,总结了优秀线上销售平台的成功经验,对传统线下商家提出了积极向线上转型、做好内容运营、保障商品质量及发货效率、建立品牌宣传矩阵、持续完善线上店铺运营管理五方面的参考建议。希望可以帮助传统线下商家,打造一个行之有效的OAO(Online And Offline)协同销售模式,提升商品营销效果。
文摘To relieve the shortage in crude supply, sharp reduction of crude production by Daqing Oi1 Field in particular, Sinopec Corp has recently signed anagreement with OAO Yukos Oi1 Company to import 17 million tons of crude oil from Russia's second largest oil firm via a railwav over the next four vears.
基金financial support of this work by the Swedish Research Council(2017-00935)Swedish Energy Agency and Knut and Alice Wallenberg Foundation(KAW 2016.0072)。
文摘Numerous aspects of the water oxidation mechanism in photosystemⅡhave not been fully elucidated,especially the O-O bond formation pathway.However,a body of experimental evidences have identified the O5 and W2 ligands of the oxygen-evolving complex as the highly probable substrate candidates.In this work,we studied O-O bond formation between O5 and W2 based on the native Mn4 Ca cluster by density functional calculations.Structural rearrangements before the formation of the S_(4) state were found as a prerequisite for O-O bond formation between O5 and W2,regardless if the suggested pathways involving the typical Mnl(Ⅳ)-O·species or the recently proposed Mn4(Ⅶ)(O)2 species.Possible alternatives for the S2→S_(3) and S_(3)→S_(4) transitions accounting for such required rearrangements are discussed.These findings reflect that the structural flexibility of the Mn4 Ca cluster is essential to allow structural rearrangements during the catalytic cycle.
文摘The nation should maintain close cooperation with Russia in the energy sector and accelerate a new natural gas pipeline project,said China’s Vice-Premier Zhang Gaoli in mid-February in Beijing during his meeting with Alexei Miller,president of Russia’s state-owned natural gas giant Gazprom OAO.Zhang said the two neighbors achieved great success in the energy industry last year and will focus on making their cooperation more effective for mutual benefit.Based on bilateral agreements,China and
