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Absence of BCS–BEC crossover in FeSe0.45Te0.55 superconductor

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Chinese Physics B 2024年第7期33卷 89-96页

作者：贾俊杰谷亚东殷超辉束英杰陈逸雯史聚民张杏陈浩苗泰民任晓琳梁波朱文培蔡能张丰丰张申金杨峰王志敏彭钦军许祖彦毛寒青刘国东任治安赵林周兴江 National Laboratory for Superconductivity Beijing National Laboratory for Condensed Matter PhysicsInstitute of Physics Chinese Academy of Sciences University of Chinese Academy of Sciences Technical Institute of Physics and Chemistry Chinese Academy of Sciences Songshan Lake Materials Laboratory

In iron-based superconductor Fe（Se,Te）, a flat band-like feature near the Fermi level was observed around the Brillouin zone center in the superconducting state. It is under debate whether this is the evidence on the presence of the BCS–BEC[Bardeen–Cooper–Schrieffer（BCS）, Bose–Einstein condensation（BEC）] crossover in the superconductor. High-resolution laser-based angle-resolved photoemission measurements are carried out on high quality single crystals of FeSe0.45Te0.55superconductor to address the issue. By employing different polarization geometries, we have resolved and isolated the dyz band and the topological surface band, making it possible to study their superconducting behaviors separately. The dyz band alone does not form a flat band-like feature in the superconducting state and the measured dispersion can be well described by the BCS picture. We find that the flat band-like feature is formed from the combination of the dyz band and the topological surface state band in the superconducting state. These results reveal the origin of the flat band-like feature and rule out the presence of BCS-BEC crossover in Fe（Se,Te） superconductor.

关键词： FeSe_(0.45)Te_(0.55) ARPES electronic structure superconducting gap BCS-BEC crossover

Effects of Brassinosteroid Associated with Auxin and Gibberellin on Apple Tree Growth and Gene Expression Patterns

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Horticultural Plant Journal 2019年第3期5卷 93-108页

作者： Liwei Zheng Cai Gao Caide Zhao Lizhi Zhang Mingyu Han Na An xiaolin ren College of Horticulture Northwest A&F University College of Life Science Northwest A & F University

Brassinosteroid is an important hormone that interacts with auxin and gibberellin to regulate plant growth and development. However,there is currently a relative lack of information regarding brassinosteroid in apple. Previous study confirmed that exogenous brassinosteroid treatments increased growth and endogenous brassinosteroid, auxin, as well as gibberellin levels of apple nursery trees. Here we succeeded to find that exogenous brassinosteroid treatments upregulated the transcript expression of auxin biosynthesis, transport, and positive signal transduction genes as well as gibberellin biosynthesis genes. In contrast, the application of exogenous brassinosteroid downregulated the expression of genes encoding negative regulators of auxin and gibberellin signal transductions. Rapid responses of several brassinosteroid-,auxin-, and gibberellin-related genes to the brassinosteroid and brassinazole treatments inferred the crosstalk of BR and IAA or GA. Furthermore,the expression levels of cell growth-related genes were also enhanced by exogenous brassinosteroid. Auxin and gibberellin treatments also influenced growth of apple tree and enhanced the expression of brassinosteroid-and cell growth-related genes. These results indicate that the growth of apple tree is regulated by the interaction between brassinosteroid, auxin, and gibberellin. Our work opened new avenues for deep portfolio of apple tree growth and laid the foundation for future studies aimed at elucidating the mechanisms regulating hormone interactionsmediated growth in apple trees.

关键词： Malus domestica Brassinosteroid Auxin Gibberellin Growth and development Gene expression

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Determination of volatile profiles inside apple fruit storage facilities using Monotrap^(TM)monolithic silica adsorbent and GC-MS

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Horticultural Plant Journal 2021年第4期7卷 267-274页

作者： Cuihua Liu Xiaoran Liu Xiaoning Tian Jing Zhang Zhanfeng Zhang Jinrui Shi Juan Xu xiaolin ren College of Horticulture Northwest A&F UniversityYanglingShaanxi 712100China College of Plant Protection Northwest A&F UniversityYanglingShaanxi 712100China Key Laboratory of Horticultural Plant Biology(Ministry of Education) College of Horticulture and ForestryHuazhong Agricultural UniversityWuhan 430070China

The interior atmosphere of storage facilities is very important for maintaining fruit quality and delaying senescence,so it’s of significance to determine the volatile profiles in this environment for the postharvest ***,volatile profiles inside fruit storage facilities have been rarely *** study the volatile profiles of the atmosphere inside fruit storage facilities,a method comprising Monotrap^(TM)adsorbent and GC–MS analysis in the study was developed and *** on that,the volatile profiles in the atmosphere inside fruit storage facilities at four locations in Shaanxi Province were *** thirty-six volatiles were detected,and most of them were identified as *** analysis of the similarities of volatile profiles showed that the three storage rooms at each location clustered *** storage rooms at two locations in Baoji had the most similar volatile profiles,and both were similar to that at Xianyang,but different from that at Yan’an,which were consistent with their geographic *** the basis of a principal component analysis,heatmap dendrogram,and correlation matrix analysis,these compounds clustered into five *** in Group 1,which were abundant in the storage room at Yan’an,were branched-chain esters,whereas the compounds in the other four groups were mainly straight-chain esters which were abundant in the storage rooms at Xianyang and *** difference among volatile profiles inside fruit storage facilities at four locations might be caused by ultraviolet *** this study,we demonstrated the Monotrap^(TM)adsorbent and GC–MS analysis were an efficient method for volatile compounds detection inside fruit storage facilities.

关键词： Apple MonoTrap^(TM)adsorbent Volatile Storage environment Ester

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苹果MdCAXs家族分析及钙转运功能的初步分析

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中国果树 2024年第6期 11-18页

作者：刘佳蒋紫洮戚英伟王彩霞任小林中国中医科学院中药研究所北京100700 西北农林科技大学园艺学院

苦痘病(BP)是一种苹果果实钙缺乏相关的生理性病害,然而关于苦痘病的发病机制尚不明确。目前发现,Ca^(2+)/H^(+)反向转运体(CAXs)可能与植物钙缺乏症的发生相关。对12个苹果MdCAXs基因家族成员的蛋白理化性质及蛋白序列进行了分析,同时... 详细信息

苦痘病(BP)是一种苹果果实钙缺乏相关的生理性病害,然而关于苦痘病的发病机制尚不明确。目前发现,Ca^(2+)/H^(+)反向转运体(CAXs)可能与植物钙缺乏症的发生相关。对12个苹果MdCAXs基因家族成员的蛋白理化性质及蛋白序列进行了分析,同时对水溶性元素含量与钙转运相关基因表达量之间的相关性进行了分析,并鉴定了MdCAX2、MdCAX5和MdCAX11及去掉NRR的sMdCAX2、sMdCAX5和sMdCAX11的钙转运功能,发现MdCAX5和sMdCAX11这2个转运蛋白可能具备转运Ca2+的功能,进而参与调控苦痘病的发生与发展。

关键词：苦痘病 CAXs 钙缺乏生理性病害苹果

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电力通信数据网网管系统设计及数据采集功能实现

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通信电源技术 2024年第17期41卷 237-239页

作者：黄华林任晓林唐洲柳晓萍李春生国网西藏电力有限公司信息通信公司西藏拉萨850000 北京邮电大学信息与通信工程学院北京100876

在智能电网的快速发展中,电力通信数据网扮演着至关重要的角色。它不仅支撑着电网的高效稳定运行,更是智能化管理的关键。面对日益增长的数据量和复杂的网络环境,现有网管系统在数据处理能力、网络安全性以及系统扩展性方面显现出一定... 详细信息

在智能电网的快速发展中,电力通信数据网扮演着至关重要的角色。它不仅支撑着电网的高效稳定运行,更是智能化管理的关键。面对日益增长的数据量和复杂的网络环境,现有网管系统在数据处理能力、网络安全性以及系统扩展性方面显现出一定的局限性。文章深入探讨了电力通信数据网网管系统的优化设计,旨在通过技术创新和系统升级,显著提升电网的监控、管理以及数据交换效率。通过增强系统的数据处理能力,加强网络安全防护,提高系统的可扩展性,确保电力通信的高可靠性和安全性,全面应对智能电网发展所带来的新挑战和需求。

关键词：电力通信数据网网管系统设计智能电网

Demand and key technology for a LEO constellation as augmentation of satellite navigation systems

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Satellite Navigation 2024年第1期5卷 1-9页

作者： Yuanxi Yang Yue Mao Xia ren xiaolin Jia Bjiao Sun Xi’an Research Institute of Surveying and Mapping Xi’an710054ShaanxiChina State National Key Laboratory of Geo-Information Engineering Xi’an710054ShaanxiChina

A Low Earth Orbit(LEO)constellation augmenting satellite navigation is important in the future development of Global Navigation Satellite System(GNSS).GNSS augmented by LEO constellations can improve not only the accuracy of Positioning,Navigation,and Timing(PNT),but also the consistency and reliability of secure PNT *** paper mainly analyzes the diverse demands of different PNT users for LEO augmented GNSS,including the precision demand in real-time,the availability demand in special areas,the navigation signal enhancement demand in complex electromagnetic environments,and the integrity demand with high ***,the possible contributions of LEO constellations to PNT performance are analyzed from multiple aspects.A particular attention is paid to the special PNT user requirements that cannot be fulfilled with existing GNSS,such as the PNT service demand in the polar regions and the onboard GNSS orbit determination demand of some LEO *** key technologies to be considered in the constellation design,function realization,and payload development of the LEO-augmented navigation system are summarized.

关键词： Low earth orbit navigation constellation Accuracy augmentation Orbit determination Integrity

Research on Robot Tracking of Books Returning to Bookshelf Based on Particle Swarm Optimization Fuzzy PID Control

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Research on Robot Tracking of Books Returning to Bookshelf B...

第32届中国控制与决策会议

作者： ren xiaolin Yang Yi Gao Long Chen Jianbo Mei Tianxiang Yu Jingya Han Qinqin College of Electrical Engineering Nantong University

ISBN: (数字)9781728158556

ISBN: (纸本)9781728158563

In order to avoid library intelligent returning books to bookshelf robot during the process of searching for books and bookshelves,the tracking time is long and the path deviation is *** system uses a navigation system based on a fuzzy PID controller based on particle swarm optimization to avoid problems such as empirical parameter selection and parameter invariance in fuzzy PID *** particle swarm optimization algorithm is used to optimize the controller parameters,enhance the controller’s adaptive ability,and improve its control *** show that the system improves the accuracy of the path,and has a faster response speed and higher tracking accuracy when moving.

关键词： Track Particle swarm Fuzzy PID control Adaptive

来源： cnki会议评论

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对话:任小林与冯博一

当代美术家 2008年第6期 56-59页

作者：冯博一任小林不详

冯博一(以下简称“冯”):虽然说你在贵阳画的和你现在画的画,包括你做的纸上实验,在形象和油画语言上有所变化,但大线索没有变,还是画这种奇奇怪怪的人,说不清楚的这种。

关键词：油画语言小林对话

Mean-square consensus control of multi-agent systems driven by fractional Brownian motion

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Science China(Information Sciences) 2024年

作者： xiaolin YUAN Yongguang YU Wei SU Guojian ren School of Mathematics and Statistics Beijing Jiaotong University

In the 1940s, the stochastic process with long memory was first proposed by Kolmogorov. Then, Mandelbrot et al.[1]named it fractional Brownian motion （FBM） and studied its properties. The nonlocality, non-Markov property, and long-memory property of FBM allow for a better description of the complex dynamic behavior observed in the real world. In recent decades, the rapid development of FBM has resulted in clear applications in various research fields such as hydrology, climate, wavelet analysis, and finance.

关键词：