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Fano-Resonant Hybrid Metamaterial for Enhanced Nonlinear Tunability and Hysteresis Behavior

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Research 2021年第1期2021卷 597-605页

作者： Yuancheng Fan Xuan He Fuli Zhang weiqi cai Chang Li Quanhong Fu Nataliia V.Sydorchuk Sergey L.Prosvirnin Key Laboratory of Light Field Manipulation and Information Acquisition Ministry of Industry and Information Technology and School of Physical Science and TechnologyNorthwestern Polytechnical UniversityXi’an 710129China Research&Development Institute of Northwestern Polytechnical University in Shenzhen Shenzhen 518057China Institute of Radio Astronomy National Academy of Sciences of UkraineKharkiv 61002Ukraine Karazin Kharkiv National University Kharkiv 61077Ukraine

Artificial resonant metamaterial with subwavelength localized filed is promising for advanced nonlinear photonic *** this article,we demonstrate enhanced nonlinear frequency-agile response and hysteresis tunability in a Fano-resonant hybrid metamaterial.A ceramic cuboid is electromagnetically coupled with metal cut-wire structure to excite the high-Q Fano-resonant mode in the dielectric/metal hybrid *** is found that the significant nonlinear response of the ceramic cuboid can be employed for realization of tunable metamaterials by exciting its magnetic mode,and the trapped mode with an asymmetric Fano-like resonance is beneficial to achieve notable nonlinear modulation on the scattering *** nonlinear tunability of both the ceramic structure and the ceramic/metal hybrid metamaterial is promising to extend the operation band of metamaterials,providing possibility in practical applications with enhanced light-matter interactions.

关键词： spectrum resonant nonlinear

Enzyme-Catalyzed Activation of Pro-PROTAC for Cell-Selective Protein Degradation

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CCS Chemistry 2022年第12期4卷 3809-3819页

作者： Chunjing Liang Qizhen Zheng Tianli Luo weiqi cai Lanqun Mao Ming Wang Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Analytical Chemistry for Living BiosystemsInstitute of ChemistryChinese Academy of SciencesBeijing 100190 University of Chinese Academy of Sciences Beijing 100049 College of Chemistry Beijing Normal UniversityBeijing 100875

Proteolysis targeting chimera(PROTAC)technology is a chemical protein knockdown approach that degrades protein by hijacking the cellular ubiquitinproteasome system to impede tumor *** therapeutic potential,however,isdifficult to define due to the lack of control over the cell selectivity of PROTACs,in particular,if the therapeutic purpose is to be executedin a specific cell ***,we report the design of a Pro-PROTAC and its catalytic activation of the endogenous overexpressed enzyme in cancer cells for cellselective protein *** demonstrate that the chemical modification of the binding site between PROTAC and E3 ligase with trimethyl-locked quinone efficiently blocks the protein degradation capability of ***,NAD(P)H quinone dehydrogenase 1(NQO1),an enzyme overexpressed in cancer cells,could reduce the trimethyl-locked quinone to remove the chemical modification and activate NQO1-PROTAC for cancer cell-selective protein ***,we show that NQO1-catalyzedβ-Lapachone reduction potentiated cellular oxidative stress to activate aryl boronic acid-caged ROS-PROTAC in living cells for bromodomain-containing protein 4 degradation with enhanced cell ***,our strategy of designing Pro-PROTAC in response to endogenous species of diseased cells expands the chemical biology toolbox for cell-selective protein degradation and would be of great interest in targeted therapeutics discovery.

关键词： proteolysis targeting chimera cell-selective protein degradation enzymatic activation

Active control of EIT-like response in a symmetry-broken metasurface with orthogonal electric dipolar resonators

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Photonics Research 2019年第9期7卷 955-960页

作者： RUISHENG YANG QUANHONG FU YUANCHENG FAN weiqi cai KEPENG QIU WEIHONG ZHANG FULI ZHANG Research&Development Institute in Shenzhen Key Laboratory of Space Applied Physics and ChemistryMinistry of EducationandDepartment of Applied PhysicsSchool of Natural and Applied SciencesNorthwestern Polytechnical UniversityXi’an710072China School of Mechanical Engineering Northwestern Polytechnical UniversityXi’an710072China

The active control of electromagnetic response in metamaterial and mutual coupling between resonant building blocks is of fundamental importance in realizing high-quality metamaterials. In this work, we propose and experimentally demonstrate the tunabilities of symmetry-broken metasurfaces made of orthogonal electric dipolar resonators. The metasurface with vertical and horizontal wires is integrated with a PIN diode for active *** is found that the electromagnetically induced transparency(EIT)-like spectrum appears due to the destructive or constructive interferences between the two electric dipolar modes when the structural symmetry broken is introduced to the metasurface. Different from previous works on the EIT-like effect, there is only electric dipole response in our metasuface. The microscopic response of the metasurface is numerically calculated to illustrate the mode coupling between the orthogonal electric dipolar resonators. By applying temporal coupled-mode theory,the interaction between the electromagnetic wave and the symmetry-broken metasurface is described, and the characteristic parameters of the resonator system, which determine the electromagnetic response of the metasurface, are acquired.

关键词： PIN EIT Active control of EIT-like response in a symmetry-broken metasurface with orthogonal electric dipolar resonators

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级联拉曼激光器的二阶近似解

中国激光 2008年第10期35卷 1449-1454页

作者：蔡伟琦黄朝红许惠英蔡志平黄嘉福厦门大学信息科学与技术学院电子工程系福建厦门361005

利用非线性方法可以得到级联掺磷拉曼光纤激光器的二阶近似解。将描述抽运光和斯托克斯(Stokes)光沿光纤分布的微分方程组简化成代数方程组,在此基础上对抽运光采用二阶非线性近似得到了不同输入抽运功率情况下的近似解,并求出了在二阶... 详细信息

利用非线性方法可以得到级联掺磷拉曼光纤激光器的二阶近似解。将描述抽运光和斯托克斯(Stokes)光沿光纤分布的微分方程组简化成代数方程组,在此基础上对抽运光采用二阶非线性近似得到了不同输入抽运功率情况下的近似解,并求出了在二阶非线性近似下的一级Stokes光和二级Stokes光的阈值表达式。利用得到的二阶近似解同一般的数值解法作比较,结果表明两者吻合得很好。一方面,对于双波长输出的级联掺磷拉曼光纤激光器,二阶方法比线性方法更加精确,更接近于一般的数值解;另一方面,该方法有效提高了数值运算速度,优于一般的数值方法。

关键词：非线性光学受激拉曼散射拉曼光纤激光器二阶近似解阈值双波长输出

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酚醛纤维织物热湿舒适性的灰色聚类分析

纺织学报 2016年第12期37卷 29-32页

作者：马崇启蔡薇琦阚永葭天津工业大学纺织学院天津300387

为了解酚醛纤维织物的热湿舒适性,将酚醛纤维织物应用于消防领域,以酚醛纤维织物及消防服常用的阻燃棉布、芳纶1313织物、聚酰亚胺织物为研究对象,对隔热性、保温性、透湿性、透气性和输水性这5个指标进行测试,研究相同面密度的不同种... 详细信息

为了解酚醛纤维织物的热湿舒适性,将酚醛纤维织物应用于消防领域,以酚醛纤维织物及消防服常用的阻燃棉布、芳纶1313织物、聚酰亚胺织物为研究对象,对隔热性、保温性、透湿性、透气性和输水性这5个指标进行测试,研究相同面密度的不同种类织物的热湿舒适性。利用灰色聚类分析理论对5个指标进行聚类分析,对这4种织物在不同环境下的热湿舒适性能做了综合评价。结果表明:在高温条件下,酚醛纤维织物具有较好的热湿舒适性,聚酰亚胺织物与阻燃棉布次之,芳纶1313织物最差;在低温条件下,酚醛纤维织物也具有良好的热湿舒适性,聚酰亚胺织物次之,芳纶1313织物与阻燃棉布最差。

关键词：酚醛纤维织物热湿舒适性保温性透湿性灰色聚类分析

考虑SOC平衡的并网微电网能量供需平衡方案

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太阳能学报 2020年第11期41卷 17-25页

作者：吴青峰孙孝峰才玮琪齐磊李昕电力电子节能与传动控制河北省重点实验室(燕山大学) 秦皇岛066004

为实现并网微电网内分布式储能单元(distributed energy storage unit,DESU)的荷电状态(state-of-charge,SOC)平衡和能量的供需平衡,提出一种基于多代理系统(multi-agent system,MAS)的能量管理方案。该方案将每个微源和主电网各看作一... 详细信息

为实现并网微电网内分布式储能单元(distributed energy storage unit,DESU)的荷电状态(state-of-charge,SOC)平衡和能量的供需平衡,提出一种基于多代理系统(multi-agent system,MAS)的能量管理方案。该方案将每个微源和主电网各看作一个代理,风力机和光伏系统等不可控代理采用最大功率追踪(maximum power point tracking,MPPT)控制方案,DESU作为可控代理采用引入SOC平衡因子的PQ控制方案。通过调节DESU输出的有功功率可实现DESU的SOC平衡。该方案无需中央控制器或者全局通信,按照所提的功率输出方案便可实现微电网内能量的供需平衡,可降低系统的建设成本,具有良好的即插即用特性。最后,不同工况下的仿真结果验证了所提方案的有效性。

关键词：分布式发电微电网多代理能量供需管理 SOC平衡

天然酱醪中产β-苯乙醇酵母菌的分离鉴定、发酵条件优化及其应用

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食品工业科技 2023年第17期44卷 149-157页

作者：蔡伟琪钟武杰周嘉健蹇华丽华南农业大学食品学院广东广州510642

为了提升酱油品质,开展筛选产β-苯乙醇的酵母菌,并应用在高盐稀态发酵酱油酿造的研究。从天然酱醪中筛选出产β-苯乙醇的酵母菌株J13,对其进行形态学观察、生理生化实验及分子生物学鉴定,通过耐盐性、pH耐受性及温度耐受性分析研究***... 详细信息

为了提升酱油品质,开展筛选产β-苯乙醇的酵母菌,并应用在高盐稀态发酵酱油酿造的研究。从天然酱醪中筛选出产β-苯乙醇的酵母菌株J13,对其进行形态学观察、生理生化实验及分子生物学鉴定,通过耐盐性、pH耐受性及温度耐受性分析研究*** 13的生物学特性,并采用单因素和正交试验对培养基成分及发酵条件进行优化,在最优发酵条件下培养*** 13,获得风味液并应用到高盐稀态发酵酱油的酿造工艺中。结果表明,J13鉴定为鲁氏接合酵母(Zygosaccharomyces rouxii),并命名为*** 13,能在含盐量较高(18%NaCl)条件下生长,最适pH为4~8及最适温度为20~35℃,其产β-苯乙醇的最优发酵条件为:L-苯丙氨酸4 g/L、葡萄糖30 g/L、蛋白胨10 g/L、硫酸镁0.5 g/L、磷酸氢二钾5 g/L、NaCl 50 g/L、pH6.0,温度28℃,在此条件下β-苯乙醇含量达到1.40 g/L。该风味液用于酱油酿造获得成品的感官评定结果表明,相比不添加风味液的空白对照组,风味液组的酱香和醇厚感更突出,鲜味及整体评价更佳。

关键词：酱油 β-苯乙醇鲁氏接合酵母风味液酿造

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基于NFC的智能变电站电力系统自动化智能控制技术研究

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通信电源技术 2024年第24期41卷 50-52页

作者：才玮琪国网冀北电力有限公司宽城县供电分公司河北承德067600

近年来,随着智能电网技术的发展,智能变电站成为提高电力系统效率和可靠性的关键环节。其中,近场通信(Near Field Communication,NFC)技术通常用于移动设备的快速配对和数据交换,现已开始在智能变电站的自动化控制中展现其潜力。全面研... 详细信息

近年来,随着智能电网技术的发展,智能变电站成为提高电力系统效率和可靠性的关键环节。其中,近场通信(Near Field Communication,NFC)技术通常用于移动设备的快速配对和数据交换,现已开始在智能变电站的自动化控制中展现其潜力。全面研究了NFC技术在智能变电站电力系统自动化控制中的应用,涵盖了从设备集成与配置、数据同步与实时处理、故障检测与自愈以及能效优化与管理等多个方面,旨在通过技术应用,测试验证NFC技术在提高智能变电站操作效率和可靠性方面的实际效果。

关键词：近场通信(NFC) 变电站电力系统自动化智能控制

PARAMETER ESTIMATION OF ENGINEERING TURBULENCE MODEL

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PARAMETER ESTIMATION OF ENGINEERING TURBULENCE MODEL