Recently published in Joule,Feng Liu and colleagues from Shanghai Jiaotong University reported a record-breaking 20.8%power conversion efficiency in organic solar cells(OSCs)with an interpenetrating fibril network act...Recently published in Joule,Feng Liu and colleagues from Shanghai Jiaotong University reported a record-breaking 20.8%power conversion efficiency in organic solar cells(OSCs)with an interpenetrating fibril network active layer morphology,featuring a bulk p-in structure and proper vertical segregation achieved through additive-assisted layer-by-layer deposition.This optimized hierarchical gradient fibrillar morphology and optical management synergistically facilitates exciton diffusion,reduces recombination losses,and enhances light capture capability.This approach not only offers a solution to achieving high-efficiency devices but also demonstrates the potential for commercial applications of OSCs.展开更多
分布式电源(distributed resources,DR)中智能边缘设备数据传输的安全问题为电力系统带来了安全隐患。Modbus TCP(transmission control protocol)协议作为边缘设备采用的通信手段之一,其协议安全性的不足使得系统易遭到网络空间的攻击...分布式电源(distributed resources,DR)中智能边缘设备数据传输的安全问题为电力系统带来了安全隐患。Modbus TCP(transmission control protocol)协议作为边缘设备采用的通信手段之一,其协议安全性的不足使得系统易遭到网络空间的攻击。为保障电力设备数据传输安全,对现有安全手段进行整理,分析现有安全手段在DR应用场景下的不足,提出一种非侵入式Modbus TCP协议安全增强方法。该方法采用云边协同的架构,利用电力控制中心云平台管理访问控制原则,将实际访问控制决策模块部署在边缘设备,并通过细粒度的访问控制组合限制恶意行为。依据Modbus协议参考指南,搭建DR应用场景进行渗透测试,验证该方法能有效防御重放攻击和中间人攻击,可将安全开销控制在百微秒以内,显著优于其他安全手段,满足DR对实时性的需求。展开更多
二穗短柄草是一年生温带早熟禾亚科植物,具有遗传资源丰富、与禾谷类作物亲缘关系密切等特点,是一种重要的禾谷类模式植物。TEOSINTE BRANCHED1/CINCINNATA/PROLIFERATING CEL FACTOR(TCP)家族是植物特异转录因子,广泛调控植物生长发育...二穗短柄草是一年生温带早熟禾亚科植物,具有遗传资源丰富、与禾谷类作物亲缘关系密切等特点,是一种重要的禾谷类模式植物。TEOSINTE BRANCHED1/CINCINNATA/PROLIFERATING CEL FACTOR(TCP)家族是植物特异转录因子,广泛调控植物生长发育。然而,有关二穗短柄草TCP转录因子的信息仍不清楚。本文对二穗短柄草的TCP基因进行了全基因组鉴定,共鉴定出了21个TCP基因(BdTCPs)。分类结果显示,21个BdTCPs主要分为以下两个亚组:11个PROLIFERATING CEL FACTOR(PCF)基因(Ⅰ类)、7个CINCINNATA(CIN)基因和3个CYCLOIDEA(CYC)基因(Ⅱ类)。序列分析表明,二穗短柄草TCP蛋白均包含TCP/TCP superfamily结构域,且外显子-内含子结构各不相同。Motif分析表明,二穗短柄草TCP家族成员均含有Motif 1和Motif 2,暗示这两个基序是其发挥功能所必需的保守区域。顺式作用元件分析表明,所有BdTCPs的启动子区域都含有植物激素和环境响应元件,暗示BdTCPs基因可能参与非生物胁迫响应。荧光定量PCR结果显示,21个BdTCPs均对盐胁迫不敏感,但其中2个基因(BdTCP10、BdTCP15)参与了干旱胁迫的瞬时响应,且表达量均发生了极显著上调,表明Bd TCP10和BdTCP15基因在二穗短柄草应对干旱胁迫中起正调控作用。上述结果为进一步研究TCP在调控二穗短柄草的生长发育及其在非生物胁迫响应中的作用提供了重要线索。展开更多
基金Technology Development Program of Jilin Province(YDZJ202201ZYTS640)the National Key Research and Development Program of China(2022YFB4200400)funded by MOST+4 种基金the National Natural Science Foundation of China(52172048 and 52103221)Shandong Provincial Natural Science Foundation(ZR2021QB024 and ZR2021ZD06)Guangdong Basic and Applied Basic Research Foundation(2023A1515012323,2023A1515010943,and 2024A1515010023)the Qingdao New Energy Shandong Laboratory open Project(QNESL OP 202309)the Fundamental Research Funds of Shandong University.
文摘Recently published in Joule,Feng Liu and colleagues from Shanghai Jiaotong University reported a record-breaking 20.8%power conversion efficiency in organic solar cells(OSCs)with an interpenetrating fibril network active layer morphology,featuring a bulk p-in structure and proper vertical segregation achieved through additive-assisted layer-by-layer deposition.This optimized hierarchical gradient fibrillar morphology and optical management synergistically facilitates exciton diffusion,reduces recombination losses,and enhances light capture capability.This approach not only offers a solution to achieving high-efficiency devices but also demonstrates the potential for commercial applications of OSCs.
文摘二穗短柄草是一年生温带早熟禾亚科植物,具有遗传资源丰富、与禾谷类作物亲缘关系密切等特点,是一种重要的禾谷类模式植物。TEOSINTE BRANCHED1/CINCINNATA/PROLIFERATING CEL FACTOR(TCP)家族是植物特异转录因子,广泛调控植物生长发育。然而,有关二穗短柄草TCP转录因子的信息仍不清楚。本文对二穗短柄草的TCP基因进行了全基因组鉴定,共鉴定出了21个TCP基因(BdTCPs)。分类结果显示,21个BdTCPs主要分为以下两个亚组:11个PROLIFERATING CEL FACTOR(PCF)基因(Ⅰ类)、7个CINCINNATA(CIN)基因和3个CYCLOIDEA(CYC)基因(Ⅱ类)。序列分析表明,二穗短柄草TCP蛋白均包含TCP/TCP superfamily结构域,且外显子-内含子结构各不相同。Motif分析表明,二穗短柄草TCP家族成员均含有Motif 1和Motif 2,暗示这两个基序是其发挥功能所必需的保守区域。顺式作用元件分析表明,所有BdTCPs的启动子区域都含有植物激素和环境响应元件,暗示BdTCPs基因可能参与非生物胁迫响应。荧光定量PCR结果显示,21个BdTCPs均对盐胁迫不敏感,但其中2个基因(BdTCP10、BdTCP15)参与了干旱胁迫的瞬时响应,且表达量均发生了极显著上调,表明Bd TCP10和BdTCP15基因在二穗短柄草应对干旱胁迫中起正调控作用。上述结果为进一步研究TCP在调控二穗短柄草的生长发育及其在非生物胁迫响应中的作用提供了重要线索。
