2024年,广东某电厂新建9F级燃气-蒸汽联合循环机组,汽机由上海汽轮机厂提供并配套数字电液调节控制系统(Digital Electro-Hydraulic Control System,DEH)。DEH采用西门子T3000控制系统,主机分散控制系统(Distributed Control System,DCS...2024年,广东某电厂新建9F级燃气-蒸汽联合循环机组,汽机由上海汽轮机厂提供并配套数字电液调节控制系统(Digital Electro-Hydraulic Control System,DEH)。DEH采用西门子T3000控制系统,主机分散控制系统(Distributed Control System,DCS)采用科远NT6000 V5 DCS。第一套机组汽机首次冲转调试期间,DEH启动顺控启动(Sequence Guide Control,SGC)程序,无法实现自动定速3009 r/min,启动装置TAB自动设定值无法满足汽机定速的需求。针对无法自动定速的问题,进行了过程分析,并针对相关控制逻辑给出了优化方法,实现DEH冲转自动定速3009 r/min,为同类型机组问题提供了参考和借鉴。展开更多
目的比较和分析Rpl32和Rpl13作为单内参基因与两者作为双内参基因,用于检测大鼠挫伤肌肉组织中TAB2 m RNA表达量的结果。方法 78只SD大鼠,随机分为正常对照组(1组)和肌肉损伤组(12组)。采用自由落体法制作大鼠肌肉挫伤模型,分别于4h^48...目的比较和分析Rpl32和Rpl13作为单内参基因与两者作为双内参基因,用于检测大鼠挫伤肌肉组织中TAB2 m RNA表达量的结果。方法 78只SD大鼠,随机分为正常对照组(1组)和肌肉损伤组(12组)。采用自由落体法制作大鼠肌肉挫伤模型,分别于4h^48h之间12个时间点取肌肉组织,提取总RNA、合成c DNA、采用real-time q PCR法,以Rpl32和Rpl13作为单独内参基因和二者作为双内参基因检测大鼠肌肉挫伤组织中TAB2 m RNA相对表达量,并计算检测结果的变异系数。结果以Rpl32或Rpl13单独作为内参基因或作为双内参基因,TAB2 m RNA表达随损伤时间总体均呈现降低的变化规律,但使用单内参基因在24h和32h出现极高值,而用双内参基因计算未出现极值,且各结果的变异系数均较小。结论 Rpl32和Rpl13作为双内参基因用于计算TAB2 m RNA相对表达量,可提高分析结果的准确性,在相关实验中建议选择使用。展开更多
Flexible lithium-ion batteries(LIBs) have received tremendous interest because they can provide essential flexible power for the emerging wearable electronics.However,the realization of the flexibility of LIBs is ofte...Flexible lithium-ion batteries(LIBs) have received tremendous interest because they can provide essential flexible power for the emerging wearable electronics.However,the realization of the flexibility of LIBs is often related to flexible substrates with high electrical resistance,which results in voltage loss of the battery and is unfavorable for their practical applications.In this work,we demonstrated the use of tab engineering to mediate the resistance of flexible batteries for high current output.The resistance of the obtained pouch cell can be decreased sharply and the output current can be significantly increased by a continuous tab with desirable power and energy density.The surprising performance of the flexible LIBs allows the tab on the current collector providing enough channels for electron transfer,thus enabling electrons to be transferred quickly and enhancing the electrochemical reaction kinetics.Such a flexible battery with sufficient output current could possibly solve some of the most critical problems for their practical applications in wearable electronics.展开更多
基金supported by the Youth Fund of Anhui Natural Science Foundation(2108085QE241)National Key Research and Development Program of China(2021YFE0200100)+2 种基金Fundamental Research Funds for the Central Universities(PA2021KCPY0038)Department of Housing and Urban-Rural Development of Anhui Province(2020-YF36)Anhui Natural Science Research Projects of Universities(KJ2020A0462).
文摘目的比较和分析Rpl32和Rpl13作为单内参基因与两者作为双内参基因,用于检测大鼠挫伤肌肉组织中TAB2 m RNA表达量的结果。方法 78只SD大鼠,随机分为正常对照组(1组)和肌肉损伤组(12组)。采用自由落体法制作大鼠肌肉挫伤模型,分别于4h^48h之间12个时间点取肌肉组织,提取总RNA、合成c DNA、采用real-time q PCR法,以Rpl32和Rpl13作为单独内参基因和二者作为双内参基因检测大鼠肌肉挫伤组织中TAB2 m RNA相对表达量,并计算检测结果的变异系数。结果以Rpl32或Rpl13单独作为内参基因或作为双内参基因,TAB2 m RNA表达随损伤时间总体均呈现降低的变化规律,但使用单内参基因在24h和32h出现极高值,而用双内参基因计算未出现极值,且各结果的变异系数均较小。结论 Rpl32和Rpl13作为双内参基因用于计算TAB2 m RNA相对表达量,可提高分析结果的准确性,在相关实验中建议选择使用。
基金supported by the National Natural Science Foundation of China(51202095,51861009)the Department of Science&Technology of Jiangxi Province(20153BCB23011,20194BCJ22012)。
文摘Flexible lithium-ion batteries(LIBs) have received tremendous interest because they can provide essential flexible power for the emerging wearable electronics.However,the realization of the flexibility of LIBs is often related to flexible substrates with high electrical resistance,which results in voltage loss of the battery and is unfavorable for their practical applications.In this work,we demonstrated the use of tab engineering to mediate the resistance of flexible batteries for high current output.The resistance of the obtained pouch cell can be decreased sharply and the output current can be significantly increased by a continuous tab with desirable power and energy density.The surprising performance of the flexible LIBs allows the tab on the current collector providing enough channels for electron transfer,thus enabling electrons to be transferred quickly and enhancing the electrochemical reaction kinetics.Such a flexible battery with sufficient output current could possibly solve some of the most critical problems for their practical applications in wearable electronics.
