Endothelial cells(ECs)form a single cell layer that lines the inner surface of all blood and lymphatic vessels,acting as the barrier between vessels and underlying tissues.ECs are not only responsible for the flow of ...Endothelial cells(ECs)form a single cell layer that lines the inner surface of all blood and lymphatic vessels,acting as the barrier between vessels and underlying tissues.ECs are not only responsible for the flow of substances and fluid into and out of tissues but are also involved in many processes,such as coagulation,fibrinolysis,and regulation of vascular tone and inflammation.展开更多
自主观测软件系统的设计与实现是天文望远镜自主观测的核心,近年来已经成为天文技术研究中的一个重要方向。在当前可用的自主观测系统中,远程望远镜系统第2版(Remote Telescope System 2nd version,RTS2)拥有较多优势从而成为国内天文...自主观测软件系统的设计与实现是天文望远镜自主观测的核心,近年来已经成为天文技术研究中的一个重要方向。在当前可用的自主观测系统中,远程望远镜系统第2版(Remote Telescope System 2nd version,RTS2)拥有较多优势从而成为国内天文技术界较为关注的系统之一。针对RTS2不提供远程访问控制功能的问题,深入分析RTS2中利用XMLRPC技术实现数据访问和功能调用的机制,实现了一个基于XML-RPC的望远镜自动控制终端系统原型,在不更改RTS2核心代码的基础上,通过其服务层提供的XML-RPC接口实现RTS2的应用扩展,并为后续工作中集成利用RTS2奠定了基础。展开更多
Metal-sulfur/selenium batteries have become the focus of new-generation energy storage systems due to the advantages of low-cost and high energy density.However,it still suffers from the notorious shuttle of polysulfi...Metal-sulfur/selenium batteries have become the focus of new-generation energy storage systems due to the advantages of low-cost and high energy density.However,it still suffers from the notorious shuttle of polysulfides/polyselenides,poor electronic conductivity and tremendous volume expansion.Herein,a dual defense system for polysulfides/polyselenides was proposed and constructed based on MXene.The nitrogen-doped porous carbon(NPC)decorated by Ti_(3)C_(2)T_(x)MXene(M@NPC)was employed as the SeS_(2)host(SeS_(2)@M@NPC).Particularly,Ti_(3)C_(2)T_(x)sheets wrapped on NPC guarantee the rapid ion diffusion and serve as the first barrier for SeS_(2)and dissolved sodium polysulfides/polyselenides.Meanwhile,the few-layered Ti_(3)C_(2)T_(x)sheets coated on glass fiber separators act as the second barrier for alleviating the shuttle of polysulfides/polyselenides through physical interception and chemical adsorption.With this elaborate design,the integrated Na-SeS_(2)battery achieves a high specific capacity of 1243 mAh·g^(-1)at 1.0C,revealing a distinct superiority over its counterparts(SeS_(2)@M@NPC,1083mAh·g^(-1)at 0.5C;and SeS_(2)@NPC,823 mAh·g^(-1)at 0.5C).The findings gained in this work provide a creative idea for the construction of durable room-temperature Na-SeS_(2)batteries based on MXenes and their derivative materials.展开更多
基金This work was supported by the National Key Research and Development Program of China(2018YFA0801104 and 2021YFA1301604)the National Natural Science Foundation of China(82372721,31630093,and 82394443)Independent Research Program of the State Key Laboratory of Proteomics(SKLP-K202004).
文摘Endothelial cells(ECs)form a single cell layer that lines the inner surface of all blood and lymphatic vessels,acting as the barrier between vessels and underlying tissues.ECs are not only responsible for the flow of substances and fluid into and out of tissues but are also involved in many processes,such as coagulation,fibrinolysis,and regulation of vascular tone and inflammation.
文摘自主观测软件系统的设计与实现是天文望远镜自主观测的核心,近年来已经成为天文技术研究中的一个重要方向。在当前可用的自主观测系统中,远程望远镜系统第2版(Remote Telescope System 2nd version,RTS2)拥有较多优势从而成为国内天文技术界较为关注的系统之一。针对RTS2不提供远程访问控制功能的问题,深入分析RTS2中利用XMLRPC技术实现数据访问和功能调用的机制,实现了一个基于XML-RPC的望远镜自动控制终端系统原型,在不更改RTS2核心代码的基础上,通过其服务层提供的XML-RPC接口实现RTS2的应用扩展,并为后续工作中集成利用RTS2奠定了基础。
基金financially supported by the National Natural Science Foundation of China(Nos.22179109,22005251)Chongqing Natural Science Foundation(No.cstc2020jcyj-zdxmX0010)Central University Fundamental Research Funds(No.SWU-KR22002)。
文摘Metal-sulfur/selenium batteries have become the focus of new-generation energy storage systems due to the advantages of low-cost and high energy density.However,it still suffers from the notorious shuttle of polysulfides/polyselenides,poor electronic conductivity and tremendous volume expansion.Herein,a dual defense system for polysulfides/polyselenides was proposed and constructed based on MXene.The nitrogen-doped porous carbon(NPC)decorated by Ti_(3)C_(2)T_(x)MXene(M@NPC)was employed as the SeS_(2)host(SeS_(2)@M@NPC).Particularly,Ti_(3)C_(2)T_(x)sheets wrapped on NPC guarantee the rapid ion diffusion and serve as the first barrier for SeS_(2)and dissolved sodium polysulfides/polyselenides.Meanwhile,the few-layered Ti_(3)C_(2)T_(x)sheets coated on glass fiber separators act as the second barrier for alleviating the shuttle of polysulfides/polyselenides through physical interception and chemical adsorption.With this elaborate design,the integrated Na-SeS_(2)battery achieves a high specific capacity of 1243 mAh·g^(-1)at 1.0C,revealing a distinct superiority over its counterparts(SeS_(2)@M@NPC,1083mAh·g^(-1)at 0.5C;and SeS_(2)@NPC,823 mAh·g^(-1)at 0.5C).The findings gained in this work provide a creative idea for the construction of durable room-temperature Na-SeS_(2)batteries based on MXenes and their derivative materials.
