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Durinskia baltica(Dinophyceae),a newly recorded species and genus from China, and its systematics

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Journal of Systematics and Evolution 2011年第5期49卷 476-485页

作者： 1,2~Qi ZHANG 1~Guo-Xiang LIU 1~zheng-yu hu 1(State Key Laboratory of Freshwater Ecology and Biotechnology,Institute of Hydrobiology,Chinese Academy of Sciences,Wuhan 430072,China) 2(Graduate University,Chinese Academy of Sciences,Beijing 100049,China) (State Key Laboratory of Freshwater Ecology and Biotechnology Institute of Hydrobiology Chinese Academy of Sciences Wuhan 430072 China) (Graduate University Chinese Academy of Sciences Beijing 100049 China)

A freshwater dinoflagellate was identified as Durinskia baltica(Levander) Carty & Cox by morphological characteristics,with the plate formula:Po,x,4,2a,6,5c,4s,5,*** was a newly recorded dinoflagellate genus for China with two anterior intercalary plates and six characteristic precingular *** sequences of the small and large subunit ribosomal DNA and internal transcribed spacer sequences for the dinoflagellate cells were obtained from field *** phylogenetic results indicated Durinskia species could cluster into a monophyletic group,which were distinct from Peridinium *** to morphological and molecular evidence,it was agreed that the genus Durinskia was separated from the genus Peridinium,which could be a polyphyletic *** addition,*** was an infrequent diatom-harboring dinoflagellate which was known to possess an endosymbiotic diatom or diatom-like *** phylogenetic analyses indicated that *** had a close affinity with Peridiniopsis penardii and ***,common freshwater bloom-forming species in China.

关键词： China Durinskia Durinskia baltica new record phylogeny.

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中国淡水多甲藻属研究

植物分类学报 2008年第5期46卷 754-771页

作者：刘国祥胡圣储国强胡征宇中国科学院水生生物研究所淡水生态与生物技术国家重点实验室武汉430072 中国科学院地质与地球物理研究所北京100029

板片形态和排列格式是有壳甲藻的重要分类依据,荧光染色法和扫描电镜在显示板片排列上具有独特优势。通过这两种方法,并结合光学显微技术,对我国淡水多甲藻属Peridinium 11种的形态结构和板片排列进行了描述,其中6种为中国新记录,它们... 详细信息

板片形态和排列格式是有壳甲藻的重要分类依据,荧光染色法和扫描电镜在显示板片排列上具有独特优势。通过这两种方法,并结合光学显微技术,对我国淡水多甲藻属Peridinium 11种的形态结构和板片排列进行了描述,其中6种为中国新记录,它们是加顿多甲藻*** Nygaard、古氏多甲藻*** Woloszynska、拉氏多甲藻*** Woloszynska、腭状多甲藻*** Lauterborn、线纹多甲藻*** Playfair和带多甲藻*** Playfair。

关键词：中国淡水甲藻新记录多甲藻属

Co/Co_(7)Fe_(3)heterostructures with controllable alloying degree on carbon spheres as bifunctional electrocatalyst forrechargeable zinc-air batteries

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 476-487页

作者： Junkang Chen Yongyue Zhuang Yanxin Qiao yu Zhang Aihua yuan hu Zhou School of Materials Science and Engineering Jiangsu University of Science and TechnologyZhenjiang 212003China School of Environmental and Chemical Engineering Jiangsu University of Science and TechnologyZhenjiang 212003China

Exploring efficient and nonprecious metal electrocatalysts of oxygen reduction reaction(ORR)and oxygen evolution reaction(OER)is crucial for developing rechargeable zinc-air batteries(ZABs).Herein,an alloying-degree control strategy was employed to fabricate nitrogen-doped carbon sphere(NCS)decorated with dual-phase Co/Co_(7)Fe_(3)heterojunctions(CoFe@NCS).The phase composition of materials has been adjusted by controlling the alloying *** optimal CoFe_(0.08)@NCS electrocatalyst displays a half-wave potential of 0.80 V for ORR and an overpotential of 283 mV at 10 mA·cm^(-2)for OER in an alkaline *** intriguing bifunctional electrocatalytic activity and durability is attributed to the hierarchically porous structure and interfacial electron coupling of highly-active Co_(7)Fe_(3)alloy and metallic Co *** the CoFe_(0.08)@NCS material is used as air-cathode catalyst of rechargeable liquid-state zinc-air battery(ZAB),the device shows a high peak power-density(157 mW·cm^(-2))and maintains a stable voltage gap over 150 h,outperforming those of the benchmark(Pt/C+RuO_(2))-based *** particular,the as-fabricated solid-state flexible ZAB delivers a reliable compatibility under different bending *** work provides a promising strategy to develop metal/alloy-based electrocatalysts for the application in renewable energy conversion technologies.

关键词： bifunctional electrocatalysts oxygen reduction reaction oxygen evolution reaction zinc-air battery metal/alloy carbon sphere

Effect of cholesterol metabolism on hepatolithiasis

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World Journal of Gastroenterology 2025年第1期31卷 157-162页

作者： Lin zheng Zi-yu Ye Jun-Ji Ma Department of Gastroenterology The Second Hospital of Hebei Medical UniversityHebei Key Laboratory of GastroenterologyHebei Institute of GastroenterologyHebei Clinical Research Center for Digestive DiseasesNo.215 Heping West RoadShijiazhuang 050000Hebei ProvinceChina

Surgical intervention is currently the primary treatment for hepatolithiasis;how-ever,some patients still experience residual stones and high recurrence rates after *** metabolism seems to play an important role in hepatoli-thiasis pathogenesis.A high cholesterol diet is one of the significant reasons for the increasing incidence of ***,regular diet and appropriate medical intervention are crucial measures to prevent hepatolithiasis and reduce recurrence rate after *** dietary cholesterol and drugs that increase cholesterol stone solubility are key therapeutic approaches in treating *** article discusses the cholesterol metabolic pathways related to the pathogenesis of hepatolithiasis,as well as food intake and targeted therapeutic drugs.

关键词： Hepatolithiasis Cholesterol metabolism High-fat diet 3-hydroxy-3-methylglutaryl-coenzyme A reductase Interlobular bile duct

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某大型运输车的时域平顺性仿真分析

北京理工大学学报 2017年第2期37卷 146-150,156页

作者：荣吉利郑育龙刘琥何丽王玺北京理工大学宇航学院北京100081 北京航天发射技术研究所北京100076

为解决某大型运输车在运输过程中,车载精密仪器振动过大而影响其使用性能的问题,基于拉格朗日原理,建立了某大型运输车仪器-车-路耦合的19自由度振动动力学模型;利用白噪声模块,构建了随机路面激励时域模型;采用时域分析方法,分析了路... 详细信息

为解决某大型运输车在运输过程中,车载精密仪器振动过大而影响其使用性能的问题,基于拉格朗日原理,建立了某大型运输车仪器-车-路耦合的19自由度振动动力学模型;利用白噪声模块,构建了随机路面激励时域模型;采用时域分析方法,分析了路面不平度、车速以及仪器悬置刚度阻尼对仪器振动加速度影响.并采用粒子群算法,对相关参数进行优化.研究表明:通过提高路面等级、选择适当的行车速度、适当的降低仪器悬置的刚度和阻尼,能够有效降低仪器的振动加速度,提高大型运输车的平顺性.

关键词：仪器-车-路耦合路面不平度时域模型振动加速度粒子群算法平顺性

Mechanism by which Rab5 promotes regeneration and functional recovery of zebrafish Mauthner axons

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Neural Regeneration Research 2025年第6期20卷 1816-1824页

作者： Jiantao Cui yueru Shen zheng Song Dinggang Fan Bing hu Center for Advanced Interdisciplinary Science and Biomedicine of IHM Division of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiAnhui ProvinceChina

Rab5 is a GTPase protein that is involved in intracellular membrane trafficking. It functions by binding to various effector proteins and regulating cellular responses, including the formation of transport vesicles and their fusion with the cellular membrane. Rab5 has been reported to play an important role in the development of the zebrafish embryo;however, its role in axonal regeneration in the central nervous system remains unclear. In this study, we established a zebrafish Mauthner cell model of axonal injury using single-cell electroporation and two-photon axotomy techniques. We found that overexpression of Rab5 in single Mauthner cells promoted marked axonal regeneration and increased the number of intra-axonal transport vesicles. In contrast, treatment of zebrafish larvae with the Rab kinase inhibitor CID-1067700markedly inhibited axonal regeneration in Mauthner cells. We also found that Rab5 activated phosphatidylinositol 3-kinase(PI3K) during axonal repair of Mauthner cells and promoted the recovery of zebrafish locomotor function. Additionally, rapamycin, an inhibitor of the mechanistic target of rapamycin downstream of PI3K, markedly hindered axonal regeneration. These findings suggest that Rab5 promotes the axonal regeneration of injured zebrafish Mauthner cells by activating the PI3K signaling pathway.

关键词： axonal regeneration Mauthner cell nerve regeneration Rab5 zebrafish

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基于双核处理器平台的数控系统软件架构设计

组合机床与自动化加工技术 2013年第8期 62-65页

作者：郑玉虎王品陆小虎中国科学院大学北京100039 中国科学院沈阳计算技术研究所沈阳110168 沈阳高精数控技术有限公司沈阳110168

针对单核处理器平台上数控系统提升性能和扩展功能方面存在的问题,研究了双核处理器平台上数控系统软件设计的一些理论问题。首先基于RTCore实时操作系统研究了双核平台上数控系统的线程模型设计方案,探讨了线程在核心上的分配方法;然... 详细信息

针对单核处理器平台上数控系统提升性能和扩展功能方面存在的问题,研究了双核处理器平台上数控系统软件设计的一些理论问题。首先基于RTCore实时操作系统研究了双核平台上数控系统的线程模型设计方案,探讨了线程在核心上的分配方法;然后采用RM算法判定多个周期性实时任务的可调度性,并根据判定结果和负载均衡情况进行线程模型设计;最后研究了中断管理相关问题,提出了根据中断的重要性不同而分配到不同核心上的方法。提出的问题和方法对于设计基于双核和多核处理器平台的数控系统软件具有一定参考意义和实用价值。

关键词：实时双核多核 RM算法数控架构

Influence of introducing Zr,Ti,Nb and Ce elements on externally solidified crystals and mechanical properties of high-pressure die-casting Al–Si alloy

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 147-153页

作者： Junjie Li Wenbo yu Zhenyu Sun Weichen zheng Liangwei Zhang Yanling Xue Wenning Liu Shoumei Xiong Center of Materials Science and Engineering School of Mechanical and Electronic Control EngineeringBeijing Jiaotong UniversityBeijing 100044China Traffic&Transportation Engineering Central South UniversityChangsha 410075China Shanghai Synchrotron Radiation Facility Shanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201204China School of Materials Science and Engineering Tsinghua UniversityBeijing 100084China

High pressure die casting(HPDC)AlSi10Mn Mg alloy castings are widely used in the automobile *** can optimize the mechanical properties of castings through heat treatment,while the release of thermal stress arouses the deformation of large integrated ***,the development of non-heat treatment Al alloys is becoming the hot *** addition,HPDC contains externally solidified crystals(ESCs),which are detrimental to the mechanical properties of *** achieve high strength and toughness of non-heat treatment die-casting Al-Si alloy,we used AlSi9Mn alloy as matrix with the introduction of Zr,Ti,Nb,and *** influences on ESCs and mechanical properties were systematically investigated through three-dimensional reconstruction and thermodynamic *** results reveal that the addition of Ti increased ESCs'size and porosity,while the introduction of Nb refined ESCs and decreased ***,large-sized Al_3(Zr,Ti)phases formed and degraded the mechanical *** introduction of Ce resulted in the poisoning effect and reduced mechanical properties.

关键词： aluminium alloy high-pressure die-casting externally solidified crystals non-heat treatment

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人机会话方式的机器人示教盒的设计

组合机床与自动化加工技术 2013年第2期 127-129页

作者：杨敏王品郑玉虎中科院沈阳计算所高精数控沈阳110015

在工业机器人的应用过程中,示教盒已成为对机器人来说不可缺少的一部分,其性能的好坏直接关系到工业机器人使用效果。该设计利用实时嵌入式RT-Linux系统,Qt/Embedded为图形界面开发工具,采用RCS库实现示教盒与主控制器之间通讯,研发了... 详细信息

在工业机器人的应用过程中,示教盒已成为对机器人来说不可缺少的一部分,其性能的好坏直接关系到工业机器人使用效果。该设计利用实时嵌入式RT-Linux系统,Qt/Embedded为图形界面开发工具,采用RCS库实现示教盒与主控制器之间通讯,研发了一种基于会话方式的机器人示教盒,通过输入作业及相关参数信息,根据配置文件,可自动转换成机器人可识别的指令,从而实现人机交互的功能,使机器人示教过程更加简单直观。

关键词：工业机器人示教盒会话编程