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An ubiquitin-like protein SDE2 negatively affects sucrose-induced anthocyanin biosynthesis in Arabidopsis

Science Bulletin 2017年第23期62卷 1585-1592页

作者： ye Xie Yulei Zhao Huijuan Tan Qin Chen Jirong Huang National Key Laboratory of Plant Molecular Genetics CAS Center for Excellence in Molecular Plant Sciences Institute of Plant Physiology and Ecology Shanghai Institutes for Biological Sciences Chinese Academy of Sciences Shanghai 200032 China University of the Chinese Academy of Sciences Beijing 100049 China School of Life Sciences Shanghai University Shanghai 200444 China College of Life and Environmental Sciences Shanghai Normal University Shanghai 200234 China

Anthocyanin biosynthesis is regulated by a conserved transcriptional MBW complex composed of MYB,b HLH and WD40 subunits. However, molecular mechanisms underlying transcriptional regulation of these MBW subunits remain largely elusive. In this study, we isolated an Arabidopsis mutant that displays a constitutive red color in aboveground tissues with retarded growth phenotypes. In the presence of sucrose, the mutant accumulates more than 3-fold anthocyanins of the wild type(WT), but cannot produce anthocyanins as WT in the absence of sucrose. Map-based cloning results demonstrated that the mutation occurs in the locus At4 G01000, which encodes a conserved nuclear-localized ubiquitin-like(UBL) superfamily protein, silencing defective 2(SDE2), in eukaryotes. SDE2 is ubiquitously expressed in various tissues. In the sucrose-induced anthocyanin biosynthesis, SDE2 expression was not responded to sucrose treatment at the early stage but was enhanced at the late stage. SDE2 mutations result in upregulation of anthocyanin biosynthetic and regulatory genes. yeast-two hybrid analysis indicated that SDE2 has no direct interaction with the MYB transcription factor PAP1 and b HLH factor TT8, indicating that SDE2 is a indirect factor to affect anthocyanin accumulation. Taking together, our data suggest that SDE2 may play a role in finely coordinating anthocyanin biosynthesis with other biological processes.

关键词： Anthocyanin biosynthesis Sucrose SDE2 PAP1 Arabidopsis

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Toluene removal characteristics by a superimposed wire-plate dielectric barrier discharge plasma reactor

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Journal of Environmental Sciences 2006年第2期18卷 276-280页

作者： GUO Yu-fang ye Dai-qi CHEN Ke-fu College of Resource Science and Paper-making Engineering South China University of Technology Guangzhou 510640 China College of Environmental Science and Engineering South China University of Technology Guangzhou 510640 China

A superimposed wire-plate dielectric barrier discharge reactor was used to remove toluene in this study. The effects of oxygen content, gas flow rate, gas initial concentration and with/without catalyst on toluene decomposition were investigated. It was found that an optimal toluene removal was achieved when the oxygen content was about 5%. Under this condition, the highest toluene removal efficiency of 80.8% was achieved when the gas concentration was 80 mg/m^3. The toluene removal efficiency decreased with the increase of the gas flow rate and the initial concentration of toluene. In addition, the ozone concentration decreased with the increase of the initial concentration of toluene. It suggested that combining DBD （dielectric barrier discharge） with Co3O4/Al2O3/foam nickel catalyst in-situ could improve the toluene removal efficiency and suppress ozone formation. Products analysis showed that the main products were CO and CO2 when oxygen was more than 5%.

关键词： dielectric barrier discharge(DBD) plasma oxygen content catalyst toluene product analysis

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Evolutional Properties of Localized Excitations for Generalized Broer-Kaup System in （2＋1） Dimensions

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Communications in Theoretical Physics 2006年第3X期46卷 461-466页

作者： ZHENG Chun-Long ye Jian-Feng XU Yuan College of Mathematics and Physics Lishui University Lishui 323000 China Basic Department Guangsha College of Applied Construction Technology Dongyang 321006 China Department of Information Engineering Lishui College of Professional Technology Lishui 323000 China

Using a special Painleve-Baecklund transformation as well as the extended mapping approach and the linear superposition theorem, we obtain new families of variable separation solutions to the （2＋1）-dimensional generalized Broer-Kaup （GBK） system. Based on the derived exact solution, we reveal some novel evolutional behaviors of localized excitations, i.e. fission and fusion phenomena in the （2＋1）-dimensional GBK system.

关键词： GBK system variable separation solution localized excitation fission fusion

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Application of imaging techniques in pancreaticobiliary maljunction

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World Journal of Clinical Cases 2022年第22期10卷 7642-7652页

作者： Jin-ye Wang Pei-Yuan Mu ye-Kai Xu Yuan-Yuan Bai Dong-Hua Shen Department of Hepatobiliary Surgery Postgraduate Training Base of Jinzhou Medical UniversityThe PLA Rocket Force Characteristic Medical CenterBeijing 100088China Department of Hepatobiliary Surgery The PLA Rocket Force Characteristic Medical CenterBeijing 100088China Department of Ultrasound The PLA Rocket Force Characteristic Medical CenterBeijing 100088China

Imaging techniques are useful tools in the diagnosis and treatment of pancreaticobiliary maljunction(PBM).PBM is a precancerous lesion often relative to the disease of the pancreas and biliary tract,for example,cholecystolithiasis,protein plugs,and *** patients with PBM,early diagnosis and timely treatment are highly important,which is largely dependent on imaging *** continuous development of imaging techniques,including endoscopic retrograde cholangiopancreatography,magnetic resonance cholangiopancreatography,computed tomography,ultrasound,and intraoperative cholangiography,has provided appropriate diagnostic and therapeutic tools for *** techniques,including non-invasive and invasive,have distinct advantages and *** purpose of this paper is to review the application of various imaging techniques in the diagnosis and treatment of PBM.

关键词： Pancreaticobiliary maljunction Endoscopic retrograde cholangiopancreatography Magnetic resonance cholangiopancreatography Ultrasound Computed tomography Intraoperative cholangiography

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钙铁生物炭对水中铅的去除性能及机理

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吉林大学学报(地球科学版) 2025年第1期55卷 245-253页

作者：赵钰刘鹏唐金平叶志航郭林周子艺冯宇中国地质大学(武汉)环境学院武汉430074 中国地质大学(武汉)长江流域环境与水生科学湖北省重点实验室武汉430074 河南省地质研究院郑州450001

为了制备钙铁改性生物炭,优化单一铁改性生物炭对Pb(Ⅱ)的去除效果,获得能够高效去除水中Pb(Ⅱ)且便于回收的生物炭,本研究以杨木、竹子为原材料,分别制备了杨木生物炭(包括未改性、FeSO_(4)改性、CaCO_(3)+FeSO_(4)改性、CaO+FeSO_(4)... 详细信息

为了制备钙铁改性生物炭,优化单一铁改性生物炭对Pb(Ⅱ)的去除效果,获得能够高效去除水中Pb(Ⅱ)且便于回收的生物炭,本研究以杨木、竹子为原材料,分别制备了杨木生物炭(包括未改性、FeSO_(4)改性、CaCO_(3)+FeSO_(4)改性、CaO+FeSO_(4)改性)和竹子生物炭(包括未改性、FeSO_(4)改性、CaCO_(3)+FeSO_(4)改性、CaO+FeSO_(4)改性)等8种生物炭。首先通过批实验评估不同生物炭对地下水中Pb(Ⅱ)的修复性能,然后结合扫描电镜(SEM)和X射线吸收近边结构光谱(XANES)等手段探究不同生物炭对地下水中Pb(Ⅱ)的固定机理。结果表明:钙铁(CaCO_(3)+FeSO_(4)、CaO+FeSO_(4))改性生物炭对Pb(Ⅱ)的去除率显著高于铁(FeSO_(4))改性生物炭,其中以CaO为钙源的钙铁改性生物炭对Pb(Ⅱ)的去除效率均大于99%,而以CaCO_(3)为钙源的钙铁改性杨木生物炭、钙铁改性竹子生物炭对Pb(Ⅱ)的去除效率分别为58%和37%;改性后生物炭对Pb(Ⅱ)的去除效果从高到低为CaO+FeSO_(4)改性、CaCO_(3)+FeSO_(4)改性、FeSO_(4)改性;钙铁改性生物炭表面多孔且粗糙,有利于铅沉淀物的附着;Pb(Ⅱ)的XANES线性拟合得到钙铁改性生物炭表面的稳定铅组分,如碱式碳酸铅和磷氯铅占比较其他类型生物炭更高,其中钙铁改性杨木生物炭上碱式碳酸铅和磷氯铅占比分别为28%和34%,钙铁改性竹子生物炭上碱式碳酸铅和磷氯铅占比分别为28%和30%。生物炭表面铅沉淀物的形成可能是Pb(Ⅱ)去除的主要途径之一。

关键词：铅生物炭铁改性钙铁改性 SEM XANES 去除率

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Numerical simulation of aerodynamic interaction for a tilt rotor aircraft in helicopter mode

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Chinese Journal of Aeronautics 2016年第4期29卷 843-854页

作者： ye Liang Zhang Ying yang Shuo Zhu Xinglin Dong Jun Aviation Key Laboratory of Science and Technology on Aerodynamics of High Speed and High Reynolds Number AVIC Aerodynamics Research Institute

A rotor CFD solver is developed for simulating the aerodynamic interaction phenomenon among rotor, wing and fuselage of a tilt rotor aircraft in its helicopter mode. The unsteady Navier-Stokes equations are discretized in inertial frame and embedded grid system is adopted for describing the relative motion among blades and nacelle/wing/fuselage. A combination of multi-layer embedded grid and 'extended hole fringe' technique is complemented in original grid system to tackle grid assembly difficulties arising from the narrow space among different aerodynamic components, and to improve the interpolation precision by decreasing the cell volume discrepancy among different grid blocks. An overall donor cell searching and automatic hole cutting technique is used for grid assembly, and the solution processes are speeded up by introduction of OpenMP parallel method. Based on this solver, flow fields and aerodynamics of a tilt rotor aircraft in hover are simulated with several rotor collective angles, and the corresponding states of an isolated rotor and rotor/wing/fuselage model are also computed to obtain reference solution. Aerodynamic interference influences among the rotor and wing/fuselage/nacelle are analyzed, and some meaningful conclusions are drawn. (C) 2016 Chinese Society of Aeronautics and Astronautics. Production and hosting by Elsevier Ltd.

关键词： Aerodynamic interaction Extended hole fringe Multi-layer embedded grid Navier-Stokes equations Tilt rotor

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Reliability evaluation of integrated electricity–gas system utilizing network equivalent and integrated optimal power flow techniques

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Journal of Modern Power Systems and Clean Energy 2019年第6期7卷 1523-1535页

作者： Sheng WANG Yi DING Chengjin ye Can WAN Yuchang MO College of Electrical Engineering Zhejiang UniversityHangzhouChina School of Mathematical Sciences Huaqiao UniversityQuanzhouChina

The wide utilization of gas-fired generation and the rapid development of power-to-gas technologies have led to the intensified integration of electricity and gas *** random failures of components in either electricity or gas system may have a considerable impact on the reliabilities of both ***,it is necessary to evaluate the reliabilities of electricity and gas systems considering their *** this paper,a novel reliability evaluation method for integrated electricity-gas systems(IEGSs)is ***,reliability network equivalents are utilized to represent reliability models of gas-fired generating units,gas sources(GSs),power-to-gas facilities,and other conventional generating units in IEGS.A contingency management schema is then developed considering the coupling between electricity and gas systems based on an optimal power flow ***,the time-sequential Monte Carlo simulation approach is used to model the chronological characteristics of the corresponding reliability network *** proposed method is capable to evaluate customers’reliabilities in IEGS,which is illustrated on an integrated IEEE Reliability Test System and Belgium gas transmission system.

关键词： Integrated electricity–gas system Integrated electricity and gas optimal power flow Reliability network equivalent Time-sequential Monte Carlo simulation

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Two new species of Yushania(Poaceae:Bambusoideae)from South China,with a taxonomic revision of related species

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Plant Diversity 2021年第6期43卷 492-501页

作者： Xia-Ying ye Yu-Xiao Zhang De-Zhu Li Germplasm Bank of Wild Species Kunming Institute of BotanyChinese Academy of SciencesKunmingYunnan 650201China Agronomy and Life Science Department Zhaotong UniversityZhaotongYunnan 657000China Yunnan Academy of Biodiversity Southwest Forestry UniversityKunmingYunnan 650224China

Two new species of Yushania(Poaceae,Bambusoideae,Arundinarieae)are described and illustrated from Hunan,*** longshanensis ***&*** is distinguished from related species(***,*** and ***)by having a thinner culm(0.2e0.3 cm in diameter),glabrous sheath scar,no oral setae,a large glabrous leaf blade(10e200.9e1.3 cm)and 3e4 pairs of secondary *** stoloniforma ***&*** has a distinctive scrambling habit,which differs from its putative close *** of these two new species have a solitary branch at the basal nodes and can be assigned to Yushania *** based on morphological ***,we treated Yushania gigantea ***&*** as a new synonym of *** *** and renamed *** ***&*** as *** ***&***.

关键词： Arundinarieae Yushania Hunan New species Taxonomy

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Structural energy storage composites based on modified carbon fiber electrode with metal-organic frame enhancing layered double hydroxide

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Nano Research 2024年第3期17卷 1552-1563页

作者： Jinrui ye Zhongbao Wang Qin Lei Lei Sun Jinfeng Gu School of Aerospace Engineering Beijing Institute of TechnologyBeijing 100081China Tangshan Research Institute Beijing Institute of TechnologyTangshan 063000China School of Materials Science and Engineering Shenyang Jianzhu UniversityShenyang 110168China Department of Stomatology PLA Strategic Support Force Characteristic Medical CenterBeijing 100101China Beijing Electromechanical Engineering Research Institute Beijing 100074China

Structural energy storage composites present advantages in simultaneously achieving structural strength and electrochemical *** of carbon fiber electrodes and resin structural electrolytes in energy storage composite poses challenges in maintaining good mechanical and electrochemical properties at reasonable cost and ***,we report a simple method to fabricate structural supercapacitor using carbon fiber electrodes(modified by Ni-layered double hydroxide(Ni-LDH)and in-situ growth of Co-metal-organic framework(Co-MOF)in a two-step process denoted as Co-MOF/Ni-LDH@CF)and bicontinuous-phase epoxy resin-based structural ***-MOF/Ni-LDH@CF as electrode material exhibits improved specific capacity(42.45 F·g^(-1))and cycle performance(93.3%capacity retention after 1000 cycles)in a three-electrode *** bicontinuous-phase epoxy resin-based structural electrolyte exhibits an ionic conductivity of 3.27×10^(-4) S·cm^(-1).The fabricated Co-MOF/Ni-LDH@CF/SPE-50 structural supercapacitor has an energy density of 3.21 Wh·kg^(-1) at a power density of 42.25 W·kg^(-1),whilst maintaining tensile strength and modulus of 334.6 MPa and 25.2 *** results show practical potential of employing modified commercial carbon fiber electrodes and epoxy resin-based structural electrolytes in structural energy storage applications.

关键词： carbon fiber electrode structural electrolyte structural energy storage composites supercapacitor

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深度学习背景下的图像语义分割方法综述

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中国图象图形学报 2023年第11期28卷 3342-3362页

作者：严毅邓超李琳朱凌坤叶彪武汉科技大学汽车与交通工程学院武汉430063 武汉科技大学计算机科学与技术学院武汉430063 武汉理工大学交通与物流工程学院武汉430063

语义分割任务是很多计算机视觉任务的前提与基础,在虚拟现实、无人驾驶等领域具有重要的应用价值。随着深度学习技术的快速发展,尤其是卷积神经网络(convolutional neural network,CNN)的出现,使得图像语义分割取得了长足的进步。首先,... 详细信息

语义分割任务是很多计算机视觉任务的前提与基础,在虚拟现实、无人驾驶等领域具有重要的应用价值。随着深度学习技术的快速发展,尤其是卷积神经网络(convolutional neural network,CNN)的出现,使得图像语义分割取得了长足的进步。首先,本文介绍了语义分割概念、相关背景和语义分割基本处理流程。然后,总结开源的2D、2.5D、3D数据集和其相适应的分割方法,详细描述了不同网络的分割特点、优缺点及分割精确度,得出监督学习是有效的训练方式。同时,介绍了权威的算法性能评价指标,根据不同方法的侧重点,对各个分割方法的相关实验进行了对比分析,指出了目前实验方面整体存在的问题,其中,DeepLab-V3+网络在分割精确度和速度方面都具有良好的性能,应用价值较高。在此基础上,本文针对国内外的研究现状,提出了当前面临的几点挑战和未来可能的研究方向。通过总结与分析,能够为相关研究人员进行图像语义分割相关研究提供参考。

关键词：深度学习图像语义分割(ISS) 卷积神经网络(CNN) 监督学习 DeepLab-V3+网络

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