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Precision regulation of plant aromatic amino acid homeostasis

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Science China(Life Sciences) 2024年第6期67卷 1316-1317页

作者： Jie luo Yazhouwan National Laboratory(YNL) Sanya 572025China School of Breeding and Multiplication(Sanya Institute of Breeding and Multiplication) Hainan UniversitySanya 572025China

The aromatic amino acids(AAAs)phenylalanine(Phe),tyrosine(Tyr),and tryptophan(Trp)are not only building blocks of proteins,but also precursors of numerous primary and specialized metabolites(Schenck and Maeda,2018).For instance,Trp is a precursor of the phytohormone auxin and the plant defense compounds indole glucosinolates,while Phe serves as a precursor of lignin,coumarin and *** plant natural products such as morphine and vitamin E are derived from Tyr,and have been employed in human medicine and nutrition(Schenck and Maeda,2018;Wu et al.,2022;Yokoyama et al.,2021).

关键词： aromatic instance coumarin

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1.7μm超快光纤激光器研究进展(特邀)

红外与激光工程 2022年第1期51卷 215-229页

作者：战泽宇陈吉祥刘萌罗爱平徐文成罗智超华南师范大学信息光电子科技学院广东广州510631

超快光纤激光器具有紧凑性高、光束质量佳、散热性好等优点,是一种极具发展潜力的激光光源。工作波长作为超快光纤激光器的重要参数,在一定程度上决定了激光器的应用领域。近年来,得益于1.7μm波段的独特光谱特性,1.7μm波段超快光纤激... 详细信息

超快光纤激光器具有紧凑性高、光束质量佳、散热性好等优点,是一种极具发展潜力的激光光源。工作波长作为超快光纤激光器的重要参数,在一定程度上决定了激光器的应用领域。近年来,得益于1.7μm波段的独特光谱特性,1.7μm波段超快光纤激光器在生物医学、聚合物加工、光学成像等领域具有重要的应用价值。因此,研制高性能的1.7μm波段超快光纤激光器成为激光领域的研究热点之一。文中综述了近期1.7μm波段超快光纤激光器的研究进展,对目前获得1.7μm波段超短脉冲的不同方式进行总结,分析其技术特点;同时,介绍了笔者所在课题组报道的1.7μm波段耗散孤子超快光纤激光器及其放大系统的研究成果,概述了其工作原理、技术难点;最后,对1.7μm波段超快光纤激光的应用前景及发展趋势进行了展望。

关键词： 1.7μm激光光源超短脉冲被动锁模超快光纤激光器啁啾脉冲放大

被动锁模光纤激光器中窄带滤波器对多脉冲的影响

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华南师范大学学报（自然科学版） 2014年第4期46卷 43-47页

作者：罗智超罗爱平徐文成华南师范大学信息光电子科技学院广州510631

研究了在被动锁模掺铒光纤环形激光器中加入窄带滤波器对多脉冲产生的影响.在激光器的腔内插入一个窄带光纤布拉格光栅(FBG),限制激射带宽,可以在低阈值的情况下产生多脉冲.多脉冲的个数取决于泵浦功率的设置,激光器输出脉冲的个数可以... 详细信息

研究了在被动锁模掺铒光纤环形激光器中加入窄带滤波器对多脉冲产生的影响.在激光器的腔内插入一个窄带光纤布拉格光栅(FBG),限制激射带宽,可以在低阈值的情况下产生多脉冲.多脉冲的个数取决于泵浦功率的设置,激光器输出脉冲的个数可以分立可调.多脉冲的混沌态数值模拟进一步证实了上述结果.窄带滤波器可以加强多脉冲的产生,这有助于进一步理解光纤激光器中多脉冲的形成机制.

关键词：被动锁模光纤激光器多脉冲窄带滤波器

In Situ Polymer Gel Electrolyte in Boosting Scalable Fibre Lithium Battery Applications

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Nano-Micro Letters 2024年第11期16卷 170-173页

作者： Jie luo Qichong Zhang Key Laboratory of Multifunctional Nanomaterials and Smart Systems Chinese Academy of SciencesSuzhou Institute of Nano-Tech and Nano-Bionics398 Ruoshui RoadSuzhou 215123People’s Republic of China

The poor interfacial stability not only deteriorates fibre lithium-ion batteries(FLBs)performance but also impacts their scalable *** efficiently address these challenges,*** Peng team proposed a generalized channel structures strategy with optimized in situ polymerization technology in their recent *** resultant FLBs can be woven into different-sized powering textiles,providing a high energy density output of 128 Wh kg^(-1) and simultaneously demonstrating good durability even under harsh *** a promising strategy expands the horizon in developing FLB with particular polymer gel electrolytes,and significantly ever-deepening understanding of the scaled wearable energy textile system toward a sustainable future.

关键词： High-performance fibre lithium batteries Gel electrolytes Channel structures Stable interface Scalable application

Catalyst design and structure control for photocatalytic refineries of cellulosic biomass to fuels and chemicals

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Journal of Energy Chemistry 2024年第7期94卷 102-127页

作者： Lulu Sun Nengchao luo State Key Laboratory of Catalysis Dalian National Laboratory for Clean EnergyDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina

Lignocellulosic biomass is the largest renewable hydrocarbon resource on *** cellulose,one of the major components of lignocellulose,powered by solar energy is a promising way of providing lowcarbon-footprint energy chemicals such as H_(2),HCOOH,CO,and transportation ***-of-the-art biorefineries target the full use of biomass feedstocks as they have a maximum collection radius of 75-100 km,requesting efficient and selective photocatalysts that significantly influence the outcome of photocatalytic ***-performed photocatalysts can harvest a broad solar spectrum and are active in breaking the chemical bonds of cellulose,decreasing the capital investments of ***,photocatalysts should control the selectivity of cellulose conversion,originating target products to level down separation *** separation in photocatalysts and interfacial charge transfer between photocatalysts and cellulose affect the activity and selectivity of cellulose refineries to H2 and carbonaceous *** account for the challenges above,this review summarizes photocatalysts for the refineries of cellulose and downstream platform molecules based on the types of products,with the structure features of different types of photocatalysts discussed in relation to the targets of either improving the activity or product *** addition,this review also sheds light on the methods for designing and regulating photocatalyst structures to facilitate photocatalytic refineries of cellulose and platform molecules,meanwhile summarizing proposed future research challenges and opportunities for designing efficient photocatalysts.

关键词： Photocatalysts Biorefineries Cellulose Fuels Hydrogen

Detecting APT-Exploited Processes through Semantic Fusion and Interaction Prediction

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Computers, Materials & Continua 2024年第2期78卷 1731-1754页

作者： Bin luo Liangguo Chen Shuhua Ruan Yonggang luo School of Cyber Science and Engineering Sichuan UniversityChengdu610065China Key Laboratory of Data Protection and Intelligent Management(Sichuan University) Ministry of EducationChengdu610065China Cyber Science Research Institute Sichuan UniversityChengdu610065China

Considering the stealthiness and persistence of Advanced Persistent Threats(APTs),system audit logs are leveraged in recent studies to construct system entity interaction provenance graphs to unveil threats in a ***-based provenance graph APT detection approaches require elaborate rules and cannot detect unknown attacks,and existing learning-based approaches are limited by the lack of available APT attack samples or generally only perform graph-level anomaly detection,which requires lots of manual efforts to locate attack *** paper proposes an APT-exploited process detection approach called ThreatSniffer,which constructs the benign provenance graph from attack-free audit logs,fits normal system entity interactions and then detects APT-exploited processes by predicting the rationality of entity ***,ThreatSniffer understands system entities in terms of their file paths,interaction sequences,and the number distribution of interaction types and uses the multi-head self-attention mechanism to fuse these ***,based on the insight that APT-exploited processes interact with system entities they should not invoke,ThreatSniffer performs negative sampling on the benign provenance graph to generate non-existent edges,thus characterizing irrational entity interactions without requiring APT attack *** last,it employs a heterogeneous graph neural network as the interaction prediction model to aggregate the contextual information of entity interactions,and locate processes exploited by attackers,thereby achieving fine-grained APT *** results demonstrate that anomaly-based detection enables ThreatSniffer to identify all attack *** to the node-level APT detection method APT-KGL,ThreatSniffer achieves a 6.1%precision improvement because of its comprehensive understanding of entity semantics.

关键词： Advanced persistent threat provenance graph multi-head self-attention graph neural network

THE GRADIENT ESTIMATE OF SUBELLIPTIC HARMONIC MAPS WITH A POTENTIAL

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Acta Mathematica Scientia 2024年第4期44卷 1189-1199页

作者： Han luo School of Mathematical Sciences Fudan UniversityShanghai 200433China

In this paper,we investigate subelliptic harmonic maps with a potential from noncompact complete sub-Riemannian manifolds corresponding to totally geodesic Riemannian *** some suitable conditions,we give the gradient ... 详细信息

关键词： sub-Riemannian manifolds subelliptic harmonic maps with potential gradient estimate Liouville Theorem

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两侧双基坑开挖对密贴地铁车站的影响研究

地下空间与工程学报 2022年第S2期18卷 1043-1048页

作者：马凯伦董明礼曹义罗爱平深圳市市政设计研究院有限公司广东深圳518029 深圳地铁建设集团有限公司广东深圳518026 深圳市怀德房地产开发有限公司广东深圳518128

密贴既有地铁车站结构的基坑施工极易造成地铁结构的变形,影响地铁行车安全的同时给财产带来损失。针对以上工程实际问题,以双侧密贴某地铁车站的双基坑工程为依托,采用Midas-GTS大型有限元计算软件,针对钻孔桩围护结构、横撑+预留土台... 详细信息

密贴既有地铁车站结构的基坑施工极易造成地铁结构的变形,影响地铁行车安全的同时给财产带来损失。针对以上工程实际问题,以双侧密贴某地铁车站的双基坑工程为依托,采用Midas-GTS大型有限元计算软件,针对钻孔桩围护结构、横撑+预留土台的临时结构安全性及对地铁车站的影响进行分析,开挖步骤以实际施工过程为准。研究表明:施工降水对既有车站的影响主要以水平变形为主,基坑开挖对既有车站的影响主要以竖向变形为主;经过计算检验,该基坑施工后地铁结构竖向变形6.54 mm,水平变形3.88 mm,对既有车站影响较小,且基坑自身结构及临时支撑安全,可作为正式方案进行施工。

关键词：地下工程密贴施工数值计算风险评估

Single-cell RNA sequencing in juvenile idiopathic arthritis

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Genes & Diseases 2024年第2期11卷 633-644页

作者： Xiwen luo Xuemei Tang Department of Rheumatology and Immunology Children’s Hospital of Chongqing Medical UniversityChongqing 400014China Chongqing Key Laboratory of Child Infection and Immunity Ministry of Education Key Laboratory of Child Development and DisordersNational Clinical Research Center for Child Health and DisordersChina International Science and Technology Cooperation Base of Child Development and Critical DisordersChildren's Hospital of Chongqing Medical UniversityChongqing 400014China

Juvenile idiopathic arthritis (JIA) is one of the most common chronic inflammatory rheumatic diseases in children,with onset before age 16 and lasting for more than 6 *** is a highly heterogeneous condition with various consequences for health and quality of *** some JIA patients,early detection and intervention remain *** a result,further investigation of the complex and unknown mechanisms underlying JIA is *** in technology now allow us to describe the biological heterogeneity and function of individual cell populations in *** this review,we hope to provide novel ideas and potential targets for the diagnosis and treatment of JIA by summarizing the current findings of single-cell RNA sequencing studies and understanding how the major cell subsets drive JIA pathogenesis.

关键词： Juvenile idiopathic arthritis Macrophage Macrophage activation syndrome Monocyte Single-cell RNA sequencing Synoviocyte T cell