1 Introduction Graphene is the first demonstration of a truly 2D atomic layer crystal, and has shown various excellent properties (e.g., ultrahigh carrier mobility, superior toughness, unique thermal conductivity, and...1 Introduction Graphene is the first demonstration of a truly 2D atomic layer crystal, and has shown various excellent properties (e.g., ultrahigh carrier mobility, superior toughness, unique thermal conductivity, and good optics performance). The family of 2D crystals has grown to include metals (e.g., NbS2, VS2, TaS2), semiconductors (e.g., MoS2, WS2, ZrS2), and insulators (e.g., hexagonal boron nitride (hBN)), many of which are stable at ambient conditions [1]. 2D layered metal dichalcogenides (LMDs) materials [2].展开更多
Brazil has been considered to be an open and diversified economy with a wide array of opportunities across multiple productive sectors.Although Brazil is home to a competitive industrial sector,leading a number of ind...Brazil has been considered to be an open and diversified economy with a wide array of opportunities across multiple productive sectors.Although Brazil is home to a competitive industrial sector,leading a number of industries in Latin America,there are still numerous opportunities for business development in areas such as energy,oil and gas,health care,agribusiness,infrastructure,and innovation,amongst others.展开更多
Sopa Village in Chushur County of Lhasa Municipality is the only village in Tibet with a fishing business.The unique culture of this village includes ancient traditional customs.One in particular is a strange marriage...Sopa Village in Chushur County of Lhasa Municipality is the only village in Tibet with a fishing business.The unique culture of this village includes ancient traditional customs.One in particular is a strange marriage custom.展开更多
基金supported by the National Natural Science Foundation of China (21705036)the Natural Science Foundation of Hunan Province, China (2018JJ3035)the Fundamental Research Funds for the Central Universities from Hunan University
文摘1 Introduction Graphene is the first demonstration of a truly 2D atomic layer crystal, and has shown various excellent properties (e.g., ultrahigh carrier mobility, superior toughness, unique thermal conductivity, and good optics performance). The family of 2D crystals has grown to include metals (e.g., NbS2, VS2, TaS2), semiconductors (e.g., MoS2, WS2, ZrS2), and insulators (e.g., hexagonal boron nitride (hBN)), many of which are stable at ambient conditions [1]. 2D layered metal dichalcogenides (LMDs) materials [2].
文摘Brazil has been considered to be an open and diversified economy with a wide array of opportunities across multiple productive sectors.Although Brazil is home to a competitive industrial sector,leading a number of industries in Latin America,there are still numerous opportunities for business development in areas such as energy,oil and gas,health care,agribusiness,infrastructure,and innovation,amongst others.
文摘Sopa Village in Chushur County of Lhasa Municipality is the only village in Tibet with a fishing business.The unique culture of this village includes ancient traditional customs.One in particular is a strange marriage custom.
