We investigated the superconducting properties of Fe_(1+y)Te_(0:6)Se_(0:4) single-crystalline microbridges with a width of 4 m and thicknesses ranging from 20.8 to 136.2 nm. The temperature-dependent in-plane resistan...We investigated the superconducting properties of Fe_(1+y)Te_(0:6)Se_(0:4) single-crystalline microbridges with a width of 4 m and thicknesses ranging from 20.8 to 136.2 nm. The temperature-dependent in-plane resistance of the bridges exhibited a type of metalinsulator transition in the normal state. The critical current density(J_c) of the microbridge with a thickness of 136.2 nm was82.3 kA/cm^2 at 3K and reached 105 kA/cm^2 after extrapolation to T = 0 K. The current versus voltage characteristics of the microbridges showed a Josephson-like behavior with an obvious hysteresis. These results demonstrate the potential application of ultra-thin Fe-based microbridges in superconducting electronic devices such as bolometric detectors.展开更多
随着手机的普及,手机游戏也逐渐成为了掌上娱乐的一种重要元素,能在每天都随身必备的手机上体验游戏的乐趣,早已不是奢望。如今,手机不但也能像 PC 一样进行联机对战,而且联接的方式和效率也大大提升了。传输性能极其有限的红外连接早...随着手机的普及,手机游戏也逐渐成为了掌上娱乐的一种重要元素,能在每天都随身必备的手机上体验游戏的乐趣,早已不是奢望。如今,手机不但也能像 PC 一样进行联机对战,而且联接的方式和效率也大大提升了。传输性能极其有限的红外连接早已退出主流联机功能的行列,取而代之的是蓝牙甚至是 Wi-Fi,这样我们就可以与家人或朋友自在分享游戏带来的快乐。本期我们就着重为你介绍通过蓝牙接口进行联机游戏的相关内容。展开更多
目的:观察针刺对便秘模型大鼠肠神经系统神经元标志物PGP9.5表达的影响.方法:将60只大鼠按照体质量及随机分组.正常对照组15只,45只大鼠予生大黄水煎液灌胃,开始用量为100g/(kg?d),最后为1280g/(kg?d),45d后造模36只,治疗前处死12只作...目的:观察针刺对便秘模型大鼠肠神经系统神经元标志物PGP9.5表达的影响.方法:将60只大鼠按照体质量及随机分组.正常对照组15只,45只大鼠予生大黄水煎液灌胃,开始用量为100g/(kg?d),最后为1280g/(kg?d),45d后造模36只,治疗前处死12只作为造模末治疗前组对照,剩余随机分为针刺组和空白治疗组,各12只.针刺组大鼠针刺天枢和足三里,天枢加电针,疏密波刺激10min,每日1次,共计14d;空白治疗组不给予治疗.2组14d后处死,取距离肛门5cm肠管,用HE染色和PGP9.5免疫组织化学染色,采用Image-Pro Plus 5.0计算各组PGP9.5的综合吸光度值(IA值)分析肠神经节细胞的状况.结果:正常组PGP9.5表达的IA值(×104)为47.38±9.04,治疗前组为20.36±9.12,2组比较有显著差异(P<0.000);空白组为28.51±9.43,与治疗前组比较无统计学差异(P>0.05);针刺组为41.39±19.56,与治疗前组和空白组比较均有统计学差异(均P<0.05),与正常组比较无统计学差异(P>0.05).结论:针刺有助于改善大黄水煎液灌胃泻剂便秘模型大鼠神经节细胞功能.展开更多
基金supported by the National Natural Science Foundation of China(Grant Nos.11234006,61501220,U1432135,11674054,and 11611140101)Jiangsu Provincial Natural Science Fund(Grant No.SBK2015040804)Opening Project of Wuhan National High Magnetic Field Center(Grant No.2015KF19)
文摘We investigated the superconducting properties of Fe_(1+y)Te_(0:6)Se_(0:4) single-crystalline microbridges with a width of 4 m and thicknesses ranging from 20.8 to 136.2 nm. The temperature-dependent in-plane resistance of the bridges exhibited a type of metalinsulator transition in the normal state. The critical current density(J_c) of the microbridge with a thickness of 136.2 nm was82.3 kA/cm^2 at 3K and reached 105 kA/cm^2 after extrapolation to T = 0 K. The current versus voltage characteristics of the microbridges showed a Josephson-like behavior with an obvious hysteresis. These results demonstrate the potential application of ultra-thin Fe-based microbridges in superconducting electronic devices such as bolometric detectors.
文摘随着手机的普及,手机游戏也逐渐成为了掌上娱乐的一种重要元素,能在每天都随身必备的手机上体验游戏的乐趣,早已不是奢望。如今,手机不但也能像 PC 一样进行联机对战,而且联接的方式和效率也大大提升了。传输性能极其有限的红外连接早已退出主流联机功能的行列,取而代之的是蓝牙甚至是 Wi-Fi,这样我们就可以与家人或朋友自在分享游戏带来的快乐。本期我们就着重为你介绍通过蓝牙接口进行联机游戏的相关内容。
文摘目的:观察针刺对便秘模型大鼠肠神经系统神经元标志物PGP9.5表达的影响.方法:将60只大鼠按照体质量及随机分组.正常对照组15只,45只大鼠予生大黄水煎液灌胃,开始用量为100g/(kg?d),最后为1280g/(kg?d),45d后造模36只,治疗前处死12只作为造模末治疗前组对照,剩余随机分为针刺组和空白治疗组,各12只.针刺组大鼠针刺天枢和足三里,天枢加电针,疏密波刺激10min,每日1次,共计14d;空白治疗组不给予治疗.2组14d后处死,取距离肛门5cm肠管,用HE染色和PGP9.5免疫组织化学染色,采用Image-Pro Plus 5.0计算各组PGP9.5的综合吸光度值(IA值)分析肠神经节细胞的状况.结果:正常组PGP9.5表达的IA值(×104)为47.38±9.04,治疗前组为20.36±9.12,2组比较有显著差异(P<0.000);空白组为28.51±9.43,与治疗前组比较无统计学差异(P>0.05);针刺组为41.39±19.56,与治疗前组和空白组比较均有统计学差异(均P<0.05),与正常组比较无统计学差异(P>0.05).结论:针刺有助于改善大黄水煎液灌胃泻剂便秘模型大鼠神经节细胞功能.
