检索结果-南通市图书馆

A joint call for actions to advance taxonomy in China

Zoological Systematics 2022年第3期47卷 188-197页

作者： Chaodong Zhu Arong Luo Ming Bai Michael COrr Zhonge Hou Siqin Ge Jun Chen Yibo Hu Xuming Zhou Gexia Qiao Hongzhi Kong Limin Lu Xiaohua Jin Lei Cai Xinli Wei Ruilin Zhao Wei Miao Qingfeng Wang Zhongli Sha Qiang Lin Meng Qu Jianping Jiang Jiatang Li Jing Che Xuelong Jiang Xiaoyong Chen Lianming Gao Zongxin Ren chunlei xiang Shixiao Luo Donghui Wu Dong Liu Yanqiong Peng Tao Su Chenyang Cai Tianqi Zhu Wanzhi Cai Xingyue Liu Hu Li Huaijun Xue Zhen Ye Xuexin Chen Pu Tang Shujun Wei Hong Pang Qiang Xie Feng Zhang Feng Zhang Xianjin Peng Aibing Zhang Taiping Gao Changfa Zhou Chen Shao Libin Ma Zhaoming Wei Yunxia Luan Ziwei Yin Wu Dai Cong Wei Xiaolei Huang Jingxian Liu xiangsheng Chen Tianci Yi Zhisheng Zhang Zhulidezi Aishan Qin Li Hongying Hu CAS Key Laboratory of Zoological Systematics and Evolution Institute of ZoologyChinese Academy of SciencesBeijing 100101China CAS Key Laboratory of Animal Ecology and Conservation Biology Institute of ZoologyChinese Academy of SciencesBeijing 100101China State Key Laboratory of Systematic and Evolutionary Botany Institute of BotanyChinese Academy of SciencesBeijing 100093China State Key Laboratory of Mycology(SKLM) Institute of MicrobiologyChinese Academy of SciencesBeijing 100101China CAS Key Laboratory of Aquatic Biodiversity and Conservation Institute of HydrobiologyChinese Academy of SciencesWuhan 430072China Wuhan Botanical Garden Chinese Academy of SciencesWuhan 430074China Department of Marine Organism Taxonomy&Phylogeny Institute of OceanologyChinese Academy of SciencesQingdao 266071China CAS Key Laboratory of Tropical Marine Bio-resources and Ecology South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 510301China CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization&Ecological Restoration and Biodiversity Conservation Key Laboratory of Sichuan Province Chengdu Institute of BiologyChinese Academy of SciencesChengdu 610041China State Key Laboratory of Genetic Resources and Evolution&Yunnan Key Laboratory of Biodiversity and Ecological Security of Gaoligong Mountain Kunming Institute of ZoologyChinese Academy of SciencesKunming 650221China CAS Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of SciencesKunming 650201China CAS Key Laboratory of Plant Resource Conservation and Sustainable Utilization South China Botanical GardenChinese Academy of SciencesGuangzhou 510650China CAS Key Laboratory of Wetland Ecology and Environment Northeast Institute of Geography and AgroecologyChinese Academy of SciencesChangchun 130102China CAS Key Laboratory of Tropical Forest Ecology Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesMenglunMenglaYunnan 66630

Taxonomy plays an important role in understanding the origin, evolution, and ecological functionality of biodiversity. There are large number of unknown species yet to be described by taxonomists, which together with their ecosystem services cannot be effectively protected prior to description. Despite this, taxonomy has been increasingly underrated insufficient funds and permanent positions to retain young talents. Further, the impact factordriven evaluation systems in China exacerbate this downward trend, so alternative evaluation metrics are urgently necessary. When the current generation of outstanding taxonomists retires,there will be too few remaining taxonomists left to train the next generation. In light of these challenges, all co-authors worked together on this paper to analyze the current situation of taxonomy and put out a joint call for immediate actions to advance taxonomy in China.

关键词： Endangered taxonomists morphology-based taxonomy integrative taxonomy capacity building systematics

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Medium-entropy(Me,Ti)_(0.1)(Zr,Hf,Ce)_(0.9)O_(2)(Me=Y and Ta):Promising thermal barrier materials for high-temperature thermal radiation shielding and CMAS blocking

引用

Journal of Materials Science & Technology 2022年第28期123卷 144-153页

作者： Shuaihang Qiu Huimin xiang Fu-Zhi Dai Hailong Wang Muzhang Huang chunlei Wan Qing Meng Jiangtao Li Xiaohui Wang Yanchun Zhou Science and Technology on Advanced Functional Composite Laboratory Aerospace Research Institute of Materials and Processing TechnologyBeijing 100076China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450001China State Key Lab of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China Technical Institute of Physics and Chemistry Chinese Academy of SciencesBeijing 100190China Institute of Metal Research Chinese Academy of SciencesShenyang 110016China

With continuous enhancement of gas-turbine inlet temperature and rapid increase of radiant heat transfer,thermal barrier coating(TBC)materials with a combination of low thermal conductivity and good high-temperature thermal radiation shielding performance play vital roles in ensuring the durability of metallic ***,yttria-stabilized zirconia(YSZ),as the state-of-the-art TBC and current industry standard,is unable to meet such demands since it is almost translucent to high-temperature thermal ***,poor corrosion resistance of YSZ to molten calcia-magnesia-alumina-silicates(CMAS)also impedes its application in sand,dust,or volcanic ash laden *** order to improve the hightemperature thermal radiation shielding performance and CMAS resistance of YSZ and further reduce its thermal conductivity,two medium-entropy(ME)oxide ceramics,ME(Y,Ti)_(0.1)(Zr,Hf,Ce)_(0.9)O_(2)and ME(Ta,Ti)_(0.1)(Zr,Hf,Ce)_(0.9)O_(2),were designed and prepared by pressureless sintering of binary powder compacts in this ***(Y,Ti)_(0.1)(Zr,Hf,Ce)_(0.9)O_(2)presents cubic structure but a trace amount of secondary phase,while ME(Ta,Ti)_(0.1)(Zr,Hf,Ce)_(0.9)O_(2)displays a combination of tetragonal phase(81.6 wt.%)and cubic phase(18.4 wt.%).Both ME(Y,Ti)_(0.1)(Zr,Hf,Ce)_(0.9)O_(2)and ME(Ta,Ti)_(0.1)(Zr,Hf,Ce)_(0.9)O_(2)possess better high-temperature thermal radiation shielding performance than ***,the high-temperature thermal radiation shielding performance of ME(Ta,Ti)_(0.1)(Zr,Hf,Ce)_(0.9)O_(2)is superior to that of ME(Y,Ti)_(0.1)(Zr,Hf,Ce)_(0.9)O_(2)due to its narrower band gap and correspondingly higher infrared absorbance(above 0.7)at the waveband of 1 to 5μ*** two ME oxides also display significantly lower thermal conductivity than YSZ and close thermal expansion coefficients(TECs)to YSZ and Ni-based *** addition,the two ME oxides possess excellent CMAS *** attack by molten CMAS at 1250℃for 4 h,merely~2μm thick penetration

关键词： Medium-entropy ceramics Thermal barrier coatings Thermal radiation shielding CMAS resistance Infrared absorbance

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

工艺条件对柴油吸附分离重芳烃轻质化反应的影响

引用

无机盐工业 2024年第6期56卷 139-146页

作者：刘凯隆朱孔义郭春垒马晓彪王宇健盛强李翔王银斌靳凤英中海油天津化工研究设计院有限公司天津300131 天津科技大学化工与材料学院天津300457 内蒙古伊泰石油化工有限公司内蒙古鄂尔多斯017000

馏分油芳烃吸附分离技术是炼厂过剩汽、煤、柴油资源高效利用的途径。分离得到的非芳烃组分可通过蒸汽裂解或催化裂解增产低碳烯烃,以单环芳烃为主的芳烃组分则可通过重芳烃轻质化技术增产苯、甲苯和二甲苯等轻质芳烃,同时副产优质乙烯... 详细信息

馏分油芳烃吸附分离技术是炼厂过剩汽、煤、柴油资源高效利用的途径。分离得到的非芳烃组分可通过蒸汽裂解或催化裂解增产低碳烯烃,以单环芳烃为主的芳烃组分则可通过重芳烃轻质化技术增产苯、甲苯和二甲苯等轻质芳烃,同时副产优质乙烯裂解原料。以吸附分离重芳烃组分为原料,测定了氢气溶解量。吸附分离重芳烃油中氢气的溶解量随温度和氢压的增加而增加,达到1.0×10^(-4)~3.2×10^(-4) mol/g,比油中多环芳烃加氢成单环芳烃所需理论耗氢量低1~2个数量级。进一步采用NiMo/β轻质化催化剂在固定床反应器上考察了催化剂还原条件、反应器高径比、反应温度、氢分压、氢油比、空速等工艺参数对吸附分离重芳烃轻质化反应的影响。在低温高压(350℃、4 MPa)的还原工况下,反应器高径比为4.5、反应温度为400~410℃、氢分压为5.0~5.5 MPa、氢油体积比为800~1 000、质量空速为1~1.5 h^(-1)的条件下,吸附分离重芳烃轻质化效果最佳,C^(+)_(10)转化率≥85%,C_(6)~C_(9)芳烃收率≥50%,C_(6)~C_(9)芳烃纯度≥97.5%。柴油芳烃吸附分离和重芳烃轻质化可实现高效耦合,显著提高化工品收率,具有重大的现实意义和广阔的应用前景。

关键词：吸附分离芳烃柴油芳烃重芳烃轻质化芳烃收率溶氢

来源：

维普期刊数据库博看期刊

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Elucidating the various multi-phosphorylation statuses of protein functional regions by 193-nm ultraviolet photodissociation

引用

Chinese Chemical Letters 2018年第5期29卷 694-698页

作者： Zheyi Liu You Jiang chunlei Xiao Xingchuang Xiong Tao Wang Jinan Li Fangjun Wang xiang Fang Xueming Yang CAS Key Laboratory of Separation Sciences for Analytical Chemistry Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China National Institute of Metrology Beijing 100012 China State Key Laboratory of Molecular Reaction Dynamics Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China

Ultraviolet photodissociation is a high-energy fast excitation method in mass spectrometry and has beensuccessfully applied for the elucidation of sequences and structures of biomolecules. However, its abilityto distinguish the phosphorylation sites isomers of multi-phosphopeptides has been not systematicallyinvestigated until now. A 193-nm ultraviolet laser dissociation mass spectrometry system wasestablished in this study and applied to elucidate the complex multi-phosphorylation statuses mimickingthe functional regions of Sicl, Gli3 and Tau. The numbers of matched fragment ions and phosphorylationsite-determining ions were improved on average 123% and 104%, respectively, by utilizing the ultravioletphotodissociation strategy, comparing to the typically utilized collision induced dissociation ***. 94% phosphorylation sites within various statuses were unambiguously elucidated.

关键词： Ultraviolet photodissociation Mass spectrometry Multi-phosphorylation Phosphorylated tyrosine Phosphorylation site-determining ion

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

基于正交试验小孔节流液体静压轴承优化分析

引用

现代机械 2024年第4期 52-57页

作者：任登洲陈佳君尹洋甘鹏邱春雷向呈方西华大学机械工程学院四川成都610039

以内圆磨床小孔节流液体静压轴承为研究对象,将SOLIDWORKS建立的油膜三维模型导入ICEM中进行网格划分和边界条件命名,利用流体仿真软件FLUENT仿真分析,运用正交试验法设计试验方案分析轴承主要参数对轴承性能的影响及各参数对轴承性能... 详细信息

以内圆磨床小孔节流液体静压轴承为研究对象,将SOLIDWORKS建立的油膜三维模型导入ICEM中进行网格划分和边界条件命名,利用流体仿真软件FLUENT仿真分析,运用正交试验法设计试验方案分析轴承主要参数对轴承性能的影响及各参数对轴承性能影响的主次顺序。结果表明:影响液体静压轴承承载力和刚度的因素主要包括平均间隙、节流孔直径、节流孔到轴端面距离、单排节流孔数目、偏心率、供油压力、润滑油动力粘度等;轴承的主要参数对液体静压轴承承载力和刚度的敏感性差异很大;同时以承载力最大为优化准则得到优化后轴承模型参数,其承载力提升了113.99%,同时刚度也提升了98.85%。

关键词：液体静压轴承仿真分析正交试验承载力及刚度内圆磨床

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Understanding the role of miRNAs in the pathogenesis of brain arteriovenous malformations

引用

BIOCELL 2022年第1期46卷 27-35页

作者： ILGIZ GAREEV OZAL BEYLERLI chunlei WANG ANDREI SOKHATSKII YANCHAO LIANG HUAN xiang CHUNYANG LIU XUN XU YANG GUANG Bashkir State Medical University UfaRepublic of BashkortostanRussia Department of Neurosurgery the First Affiliated Hospital of Harbin Medical UniversityHarbinChina Institute of Brain Science Harbin Medical UniversityHarbinChina

Brain arteriovenous malformations(AVMs)are abnormal vessels that are prone to rupture,ausing life threatening intracerebral hemorrhage(ICH).Understanding the moleaular basis of pathogenesis,timely diagnosis,and treatment of brain AVMs are some of the urgent problems in neur osur ***(miRNAs)are small endogenous RNAs that regulate gene-epression *** are involved in almost all biological procsss,induding cell proliferation,apoptosis,and cell *** studies have shown that miRNAs an be involved in brain AVMs formation and *** are also extracellular forms of *** miRNAs have been detected in the blood circulation and other body *** to their stability and resistance to endogenous RNase activity,circulating miRNAs have been proposed as diagnostic and prognostic biomarkers for various diseases,such as tumors,cardiovascular and autoimmune *** this review,we summarized the role of some miRNAs in brain AVMs pathogenesis and discussed their potential cdinical appliation as non-invasive biomarkers.

关键词： Brain arteriovenous malformations MiRNA Pathogenesis Biomarker

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

氧化应激信号通路在慢性前列腺炎/慢性盆腔疼痛综合征疼痛发病机制中的作用研究进展

引用

发育医学电子杂志 2024年第4期12卷 302-308页

作者：张强苏旭珍项瑞君张春雷张斌常德辉甘肃中医药大学临床医学院甘肃兰州730030 解放军联勤保障部队第九四〇医院泌尿外科甘肃兰州730050

慢性前列腺炎/慢性盆腔疼痛综合征(chronic prostatitis/chronic pelvic pain syndrome,CP/CPPS)是泌尿外科常见疾病。在CP/CPPS治疗研究进展中,发现通过核因子-κB(nuclear factor-kappa B,NF-κB)、核因子E2相关因子2(nuclear factor erythroid 2-related factor 2,Nrf2)、丝裂原活化蛋白激酶(mitogen-activated protein kinase,MAPK)等信号通路联合调控氧化应激和炎症反应,可减轻CP/CPPS症状。近年来,发现通过调控叉头盒转录因子(forkhead box O,FOXO)、沉默信息调节因子1(silent information regulator 1,Sirt1)、外来信号调节激酶(extracellular signal-regulated kinase,Erk)、GTP酶动力蛋白家族(ras homolog gene family member A,RhoA)/Rho相关蛋白激酶1(Rho-associated protein kinase 1,ROCK1)等信号通路,来缓解前列腺炎症和盆腔疼痛,为CP/CPPS的治疗提供新的靶点。

关键词：慢性前列腺炎/慢性盆腔疼痛综合征疼痛氧化应激活性氧信号通路

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

慢性前列腺炎伴不育与人体微生物组关系研究进展

引用

解放军医学院学报 2024年第2期45卷 210-212,F0003页

作者：苏旭珍项瑞君张强张春雷张斌常德辉甘肃中医药大学第一临床医学院甘肃兰州730030 联勤保障部队第940医院泌尿外科甘肃兰州730050 甘肃省干细胞与基因药物重点实验室甘肃兰州730050

慢性前列腺炎(chronic prostatitis,CP)是泌尿生殖系统常见病、多发病之一,严重影响患者的身心健康。研究发现,CP与不育关系密切,可能与精液中炎症、氧化应激损伤等因素有关。CP患者不育的病因和发病机制目前仍不明确。近年来,有学者认... 详细信息

慢性前列腺炎(chronic prostatitis,CP)是泌尿生殖系统常见病、多发病之一,严重影响患者的身心健康。研究发现,CP与不育关系密切,可能与精液中炎症、氧化应激损伤等因素有关。CP患者不育的病因和发病机制目前仍不明确。近年来,有学者认为其可能与自身及性伴侣的泌尿生殖系统、肠道等的微生物组变化有关。本文从CP伴不育与人体微生物组变化的角度,对临床CP患者不育的发病机制和治疗最新进展进行综述。

关键词：慢性前列腺炎不育人体微生物组炎症治疗

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

In-situ generation and global property profiling of metal nanoclusters by ultraviolet laser dissociation-mass spectrometry

引用

Science China Chemistry 2022年第6期65卷 1196-1203页

作者： Zheyi Liu Zhaoxian Qin Chaonan Cui Zhixun Luo Bing Yang You Jiang Can Lai Zhipeng Wang Xiaolei Wang xiang Fang Gao Li Fangjun Wang chunlei Xiao Xueming Yang State Key Laboratory of Molecular Reaction Dynamics Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian116023China CAS Key Laboratory of Separation Sciences for Analytical Chemistry Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian116023China State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian116023China State Key Laboratory for Structural Chemistry of Unstable and Stable Species Institute of ChemistryChinese Academy of SciencesBeijing100190China Dalian National Laboratory for Clean Energy Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian116023China National Institute of Metrology Beijing100013China University of Chinese Academy of Sciences Beijing100049China

Metal nanoclusters are promising nanomaterials with unique properties, but only a few ones with specific numbers of metal atoms can be obtained and studied up to now. In this study, we establish a new paradigm of in-situ generation and global study of metal nanoclusters with different sizes, constitutions, and charge states, including both accurate constitution characterization and global activity profiling. The complex mixtures of metal nanoclusters are produced by employing single-pulsed 193-nm laser dissociation of monolayer-protected cluster(MPC) precursors within a high-resolution mass spectrometry(HRMS). More than400 types of bare gold nanoclusters including novel multiply charged(2+ and 3+), S-/P-doped, and silver alloy ones can be efficiently generated and accurately characterized. A distinct size(1 to 142 atoms)-and charge(1+ to 3+)-hierarchy reactivity is clearly observed for the first time. This global cluster study might greatly promote the developments and applications of novel metal nanoclusters.

关键词： metal nanocluster ultraviolet laser dissociation mass spectrometry global property profiling size-and charge-hierarchy

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Ⅲ型前列腺炎患者早泄评分相关影响因素分析

引用

中国性科学 2024年第5期33卷 18-21页

作者：项瑞君苏旭珍张强张新张春雷张斌王东星海建斌常德辉中国人民解放军联勤保障部队第九四〇医院泌尿外科兰州730050 甘肃中医药大学第一临床医学院兰州730000 中国人民解放军联勤保障部队第九四〇医院甘肃省干细胞与基因药物重点实验室兰州730050

目的探究Ⅲ型前列腺炎,即慢性前列腺炎/慢性盆腔疼痛综合征(CP/CPPS)患者早泄评分的相关影响因素。方法选取2022年1月至12月中国人民解放军联勤保障部队第九四○医院泌尿外科门诊诊治的154例CP/CPPS患者作为研究对象,对其进行前列腺炎... 详细信息

目的探究Ⅲ型前列腺炎,即慢性前列腺炎/慢性盆腔疼痛综合征(CP/CPPS)患者早泄评分的相关影响因素。方法选取2022年1月至12月中国人民解放军联勤保障部队第九四○医院泌尿外科门诊诊治的154例CP/CPPS患者作为研究对象,对其进行前列腺炎症状指数、中国早泄患者性功能评分表、广泛性焦虑自评量表和抑郁症筛查量表调查,分析调查结果。结果154例CP/CPPS患者早泄评分正常49例,异常105例;单因素和多因素分析显示,手淫、焦虑、抑郁是CP/CPPS患者早泄评分的影响因素(P<0.05);且焦虑、抑郁程度越重,CP/CPPS患者早泄评分越低(P<0.05)。结论手淫、抑郁和焦虑是CP/CPPS患者早泄评分的相关影响因素,且随着抑郁、焦虑程度加重,早泄评分降低。

关键词： Ⅲ型前列腺炎早泄影响因素抑郁焦虑

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：