检索结果-南通市图书馆

黄河流域河南段浮游藻类功能群分布特征及影响因子

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

水生生物学报 2024年第3期48卷 513-523页

作者：王飞虎杨越张洋秦祥朝陈玉环袁杰郭聪慧董静李学军张曼高云霓高肖飞河南师范大学水产学院新乡453007 生态环境部黄河流域生态环境监督管理局生态环境监测与科学研究中心郑州450000

为研究黄河流域藻类功能群分布及关键环境驱动因子,于2021年6—7月在黄河河南段设置16个采样位点,对黄河流域河南段浮游藻类群落组成、藻类功能群分布特征、不同空间环境因子特征及藻类-环境因子相关性进行分析,(1)共鉴定浮游藻类7门65... 详细信息

为研究黄河流域藻类功能群分布及关键环境驱动因子,于2021年6—7月在黄河河南段设置16个采样位点,对黄河流域河南段浮游藻类群落组成、藻类功能群分布特征、不同空间环境因子特征及藻类-环境因子相关性进行分析,(1)共鉴定浮游藻类7门65属154种,在物种数上,绿藻门类(68种)>硅藻门类(60种)>蓝藻门类(11种),以小环藻(Cyclotella sp.)、颗粒沟链藻极窄变种(Aulacoseira granulata ***)、束丝藻(Aphanizomenon sp.)、假鱼腥藻(Pseudanabaena sp.)为流域内主要优势种(优势度≥0.02);(2)黄河流域河南段浮游藻类共划分为23个功能群,分别是功能群B、C、d、E、F、G、H1、J、lM、lo、M、MP、N、P、S1、T、W1、W2、x1、x2、x3、x_(ph)和y,所调查流域功能群空间分布差异较大,其中干流功能群种类最少,支流种类最多;从优势度来看,以适应富营养化、混动水体的功能群C、d、MP、P和J占优势;(3)RdA分析结果表明,优势功能群C与TN呈负相关;功能群MP与TP、NH_(4)^(+)-N、WT、pH和COdMn呈负相关;功能群P与NH_(4)^(+)-N、WT和COdMn呈正相关;功能群d与TN呈正相关,功能群J与NTU呈正相关,与dO呈强负相关,其中COdMn是驱动藻类功能群分布的关键因子;(4)结合地表水环境评价、基于功能群的q指数与qr指数评价、生物多样性指数评价,此次调查流域水体呈重度氮污染,水库呈轻度磷污染,洛河流域相对其他支流水质偏差。

关键词：黄河浮游藻类优势度功能群空间分布

Research on Integrated System of CAd/CAM/CNC for Planer Cams Grinding

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

Research on Integrated System of CAD/CAM/CNC for Planer Cams...

Novel isostructural iron‐series‐MOF calcined derivatives as positive and negative electrodes: A new strategy to obtain matched electrodes in a supercapacitor device

The International Conference on Surface Finishing Technology and Surface Engineering

作者： z.q. Hu y. T. zhang x.d. Kong y. K. li and l.P. Wu Mechanical Engineering College yanshan University qinhuangdao 066004 China

＜正＞An integrated system of CAd/CAM/CNC for planer cams grinding is introduced, and some key technologies are also researched. Among them are flexibility of interpolation steps, steady speed grinding. An implementation is provided to demonstrate the effectiveness of the algorithms. It is shown that with this integrated system, the quality and the productivity of cams manufacturing are greatly promoted and this kind of integrated system can also be used in other cases of single piece or small batch of manufacturing.

关键词： Cam Grinding CAd/CAM/CNC Integrated system

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

SmartMat 2023年第3期4卷 56-69页

作者： yawen dong Jiadi liu Hui zhang qingqing li Feifei Mao Aimin lu Hua Wu Kuaibing Wang Cheng zhang qichun zhang Jiangsu Key laboratory of Pesticide Sciences Department of ChemistryCollege of SciencesNanjing Agricultural UniversityNanjingChina College of Resources and Environmental Sciences Nanjing Agricultural UniversityNanjingChina Jiangsu Key laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application School of Physical Science and TechnologySuzhou University of Science and TechnologySuzhouChina department of Materials Science and Engineering City University of Hong KongHong Kong SARChina

The performance of asymmetric supercapacitors(ASCs)is strongly restricted by the capacity gap between the positive and negative *** address this issue,two new electrode materials deriving from Co‐and Fe‐based metal–organic frameworks(MOFs,Co‐TAMBA‐d,and Fe‐TAMBA‐d)through a single‐step sintering method have been developed by considering the superiorities of the derivatives of MOFs including large surface areas,sufficient metal‐atom‐doping content,and extreme surface wettability to the bath *** as‐prepared Co‐TAMBA‐d as a positive electrode delivers typical pseudocapacitive behavior with the improvement of capacity,which is better than those of pristine MOF materials,while Fe‐TAMBA‐d as negative electrodes displays better electrochemical behavior than those of activated *** based on these two electrodes exhibits excellent energy density and power density of 47Wh/kg and 1658 W/kg,respectively,where this device can maintain prominent cycling stability with capacity retention after 5000 cycles being about 75%.Furthermore,the capacity can feed a series of red light‐emitting diodes,which gives solid evidence of the potential *** results can afford the feasibility of isostructural MOF derivatives as promising electrodes in novel ASCs.

关键词： asymmetric supercapacitor Co‐and Fe‐based MOFs isostructural MOFs MOF derivatives

Phased Array Feed Experiments and Galactic HI Observations

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

Research in Astronomy and Astrophysics 2023年第8期23卷 297-307页

作者： B.liu H.W.xi d.J.ding z.W.Wang S.H.yu y.zhu l.yu x.zhang J.l.li l.J.liu q.Su y.Wu C.J.Jin B.Peng National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China Key laboratory of Radio Astronomy and Technology Chinese Academy of SciencesBeijing 100101China School of Astronomy and Space Science University of Chinese Academy of SciencesBeijing 100049China The 54th Research Institute of China Electronic Technology Group Cooperation Shijiazhuang 050081China

The Phased Array Feed(PAF)is considered as one of the next generation receivers for radio telescopes,which can significantly enlarge the instantaneous Field-of-View of large aperture single dish radio telescopes and enable more flexible observing *** efforts on PAF development for radio telescopes have been made for more than two decades and have become more and more *** report the development of an ambient-temperature 19 element l-band PAF system and the experimental results including its far field beam pattern and system temperature measurement,which achieve the *** the aperture array beam-forming method,we demonstrate a wide-field Galactic HI observations in the radio camera *** results indicate that this system might be applicable for strong Galactic transient *** system could be directly equipped to large telescopes like the Five-hundred-meter Aperture Spherical radio Telescope(FAST)and FAST array in the future.

关键词： instrumentation detectors-techniques imaging spectroscopy-line profiles

Measurement of integrated luminosities at BESⅢ for data samples at center-of-mass energies between 4.0 and 4.6 GeV

在线全文

学校读者我要写书评

暂无评论

Chinese Physics C 2022年第11期46卷 53-63页

作者： M.Ablikim M.N.Achasov P.Adlarson S.Ahmed M.Albrecht R.Aliberti A.Amoroso M.R.An q.An x.H.Bai y.Bai O.Bakina R.Baldini Ferroli I.Balossino y.Ban V.Batozskaya d.Becker K.Begzsuren N.Berger M.Bertani d.Bettoni F.Bianchi J.Bloms A.Bortone I.Boyko R.A.Briere A.Brueggemann H.Cai x.Cai A.Calcaterra G.F.Cao N.Cao S.A.Cetin J.F.Chang W.l.Chang G.Chelkov C.Chen G.Chen H.S.Chen M.l.Chen S.J.Chen T.Chen x.R.Chen x.T.Chen y.B.Chen z.J.Chen W.S.Cheng x.Chu G.Cibinetto F.Cossio J.J.Cui H.l.dai J.P.dai A.dbeyssi R.Ede Boer d.dedovich z.y.deng A.denig I.denysenko M.destefanis F.de Mori y.ding J.dong l.y.dong M.y.dong x.dong S.x.du P.Egorov y.l.Fan J.Fang S.S.Fang W.x.Fang y.Fang R.Farinelli l.Fava F.Feldbauer G.Felici C.q.Feng J.H.Feng K Fischer M.Fritsch C.Fritzsch C.d.Fu H.Gao y.N.Gao yang Gao S.Garbolino I.Garzia P.T.Ge C.Geng E.M.Gersabeck A Gilman K.Goetzen l.Gong W.x.Gong W.Gradl M.Greco M.H.Gu C.y Guan A.q.Guo l.B.Guo R.P.Guo y.P.Guo A.Guskov T.T.Han W.y.Han x.q.Hao F.A.Harris K.K.He K.l.He F.H.Heinsius C.H.Heinz y.K.Heng C.Herold M.Himmelreich T.Holtmann G.y.Hou y.R.Hou z.l.Hou H.M.Hu J.F.Hu T.Hu y.Hu G.S.Huang K.x.Huang l.q.Huang l.q.Huang x.T.Huang y.P.Huang z.Huang T.Hussain N Husken W.Imoehl M.Irshad J.Jackson S.Jaeger S.Janchiv q.Ji q.P.Ji x.B.Ji x.l.Ji y.y.Ji z.K.Jia H.B.Jiang S.S.Jiang x.S.Jiang y.Jiang J.B.Jiao z.Jiao S.Jin y.Jin M.q.Jing T.Johansson N.Kalantar-Nayestanaki x.S.Kang R.Kappert M.Kavatsyuk B.C.Ke I.K.Keshk A.Khoukaz P.Kiese R.Kiuchi R.Kliemt l.Koch O.B.Kolcu B.Kopf M.Kuemmel M.Kuessner A.Kupsc W.Kuhn J.J.lane J.S.lange P.larin A.lavania l.lavezzi z.H.lei H.leithoff M.lellmann T.lenz C.li C.li C.H.li Cheng li d.M.li F.li G.li H.li H.li H.B.li H.J.li H.N.li J.q.li J.S.li J.W.li Ke li l.J li l.K.li lei li M.H.li P.R.li S.x.li S.y.li T.li W.d.li W.G.li x.H.li x.l.li xiaoyu li z.y.li H.liang H.liang H.liang y.F.liang y.T.liang G.R.liao l.z.l.ao J.libby A.limphirat C.x.lin d.x.lin T.lin B.J.liu C.x.liu d.liu F.H.liu Fang liu Feng liu G.M.liu H.liu H.M.liu Huanhuan liu Huihui liu J.B.liu J.l.liu J.y.liu K.l Institute of High Energy Physics Beijing 100049China Beihang University Beijing 100191China Beijing Institute of Petrochemical Technology Beijing 102617China Bochum Ruhr-University D-44780 BochumGermany Carnegie Mellon University PittsburghPennsylvania 15213USA Central China Normal University Wuhan 430079China China Center of Advanced Science and Technology Beijing 100190China COMSATS University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200433China G.I.Budker Institute of Nuclear Physics SB RAS(BINP) Novosibirsk 630090Russia GSI Helmholtzcentre for Heavy Ion Research GmbH D-64291 DarmstadtGermany Guangxi Normal University Guilin 541004China Hangzhou Normal University Hangzhou 310036China Helmholtz Institute Mainz Staudinger Weg 18D-55099 MainzGermany Henan Normal University Xinxiang 453007China Henan University of Science and Technology Luoyang 471003China Henan University of Technology Zhengzhou 450001China Huangshan College Huangshan 245000China Hunan Normal University Changsha 410081China Hunan University Changsha 410082China Indian Institute of Technology Madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA INFN laboratori Nazionali di Frascati INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly INFN laboratori Nazionali di Frascati INFN Sezione di PerugiaI-06100PerugiaItaly INFN laboratori Nazionali di Frascati University of PerugiaI-06100PerugiaItaly INFN Sezione di Ferrara INFN Sezione di FerraraI-44122FerraraItaly INFN Sezione di Ferrara University of FerraraI-44122FerraraItaly Institute of Modern Physics Lanzhou 730000China Institute of Physics and Technology Peace Ave.54BUlaanbaatar 13330Mongolia Jilin University Changchun 130012China Johannes Gutenberg University of Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Joint Institute for Nuclear Research 141980 DubnaMoscow regionRussia Justus-liebig-Universitaet Giessen II.Physikalisches InstitutHeinrich-Buff-Ring 16

The integrated luminosities of data samples collected in the BESⅢ experiment in 2016-2017 at centerof-mass energies between 4.19 and 4.28 GeV are measured with a precision better than 1% by analyzing large-angle Bhabha scattering *** integrated luminosities of old datasets collected in 2010-2014 are updated by considering corrections related to detector performance,offsetting the effect of newly discovered readout errors in the electromagnetic calorimeter,which can haphazard.y.occur.

关键词： integrated luminosity e^(+)e^(-)annihilation Bhabha scattering

The GW2-WG1-OsbzIP47 pathway controls grain size and weight in rice

在线全文

学校读者我要写书评

暂无评论

Molecular Plant 2021年第8期14卷 1266-1280页

作者： Jianqin Hao dekai Wang yingbao Wu Ke Huang Penggen duan Na li Ran xu dali zeng Guojun dong Baolan zhang limin zhang dirk Inze qian qian yunhai li State Key laboratory of Plant Cell and Chromosome Engineering CAS Centre for Excellence in Molecular Plant BiologyInstitute of Genetics and Developmental BiologyThe Innovative Academy of Seed DesignChinese Academy of SciencesBeijing 100101China College of life Sciences and Medicine Zhejiang Sci-Tech UniversityHangzhou 310018China State Key laboratory of Rice Biology China National Rice Research InstituteHangzhou 310006China Ghent University Department of Plant Biotechnology and Bioinformatics9052 GhentBelgium VIB Center for Plant Systems Biology 9052 GhentBelgium University of Chinese Academy of Sciences Beijing 100039China

Regulation of seed size is a key strategy for improving crop yield and is also a basic biological ***,the molecular mechanisms by which plants determine their seed size remain ***,we report that the GW2-WG1-OsbzIP47 regulatory module controls grain width and weight in ***1,which encodes a glutaredoxin protein,promotes grain growth by increasing cell ***,WG1 interacts with the transcription factor OsbzIP47 and represses its transcriptional activity by associating with the transcriptional co-repressor ASP1,indicating that WG1 may act as an adaptor protein to recruit the transcriptional *** contrary,OsbzIP47 restricts grain growth by decreasing cell *** studies reveal that the E3 ubiquitin ligase GW2 ubiquitinates WG1 and targets it for *** analyses confirm that GW2,WG1,and OsbzIP47 function in a comm on pathway to control grain *** together,ourfindi ngs reveal a genetic and molecular framework for the control of grain size and weight by the GW2-WG1-OsbzIP47 regulatory module,providing new targets for improving seed size and weight in crops.

关键词： rice WG1 GW2 OsbzIP47 grain size and weight cell proliferation

2005--2014年CHINET中国细菌耐药性监测网5种重要临床分离菌的耐药性变迁

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

中国感染与化疗杂志 2017年第1期17卷 93-99页

作者： f.-p.hu y.guo d.-m.zhu f.wang x.-f.jiang y.-c.xu x.-j.zhang c.-x.zhang p.ji y.xie m.kang c.-q.wang a.-m.wang y.-h.xu j.-l.shen z.-y.sun z.-j.chen y.-x.ni j.-y.sun y.-z.chu s.-f.tian z.-d.hu j.-li y.-s.yu j.lin b.shan y.du y.han s.guo l.-h.wei l.wu h.zhang j.kong y.-j.hu x.-m.ai c.zhuo d.-h.su q.yang b.jia w.huang 胡付品(译) 汪复不详复旦大学附属华山医院抗生素研究所上海200040

目的收集并分析CHINET中国细菌耐药性监测网中5种重要临床分离菌的耐药性变迁。方法采用纸片扩散法或自动化仪器法按统一方案进行药物敏感性试验。按ClSI 2014年版标准判断结果。结果 2005—2014年,每年的临床分离菌数量为22 774~84 57... 详细信息

目的收集并分析CHINET中国细菌耐药性监测网中5种重要临床分离菌的耐药性变迁。方法采用纸片扩散法或自动化仪器法按统一方案进行药物敏感性试验。按ClSI 2014年版标准判断结果。结果 2005—2014年,每年的临床分离菌数量为22 774~84 572株。大肠埃希菌中产ESBl菌株检出率为51.7%~55.8%。在上述时期内大肠埃希菌和肺炎克雷伯菌对阿米卡星、环丙沙星、哌拉西林-他唑巴坦和头孢哌酮-舒巴坦的耐药率有所下降。肺炎克雷伯菌中碳青霉烯类耐药株由2.4%上升至13.4%。铜绿假单胞菌对包括亚胺培南和美罗培南的所有受试抗菌药物的耐药率均有所下降。鲍曼不动杆菌对碳青霉烯类的耐药率由31.0%逐步上升至66.7%。耐甲氧西林金黄色葡萄球菌的检出率由2005年的69%逐年下降至2014年的44.6%。结论国内肺炎克雷伯菌和鲍曼不动杆菌对碳青霉烯类的耐药率高。上述结果显示细菌耐药性监测对于细菌感染的有效治疗十分重要。

关键词：抗菌药物耐药性碳青霉烯类 CHINET细菌耐药性监测鲍曼不动杆菌大肠埃希菌肺炎克雷伯菌铜绿假单胞菌金黄色葡萄球菌

Isolation and expression analysis of anthocyanin biosynthetic genes in Morus alba l.

在线全文

学校读者我要写书评

暂无评论

Isolation and expression analysis of anthocyanin biosyntheti...

Oxygen microcapsules improve immune checkpoint blockade by ameliorating hypoxia condition in pancreatic ductal adenocarcinoma

第十二届家（柞）蚕遗传育种暨良种繁育学术研讨会

作者： J.li R.-H.lü A.-C.zHAO x.-l.WANG C.-y.liU q.-y.zhang x.-H.WANG d.UMUHOzA x.-y.JIN C.lU z.-G.li M.-d.y. College of Biotechnology Southwest University

Anthocyanins from mulberry fruits are used in medicine. However, little anthocyanin can be detected in other tissues and sometimes also mulberry fruits are colorless. The aim of this study was to investigate which gene or genes have the strongest correlation with the anthocyanin biosynthesis. The expression of several anthocyanin synthesis genes were determined in different tissues of two white and two purple fruit cultivars. Genes encoding dihydroflavonol reductase（MadFR） and anthocyanidin synthase（MaANS） showed a high expression only in fruit tissue of purple-fruit *** the development of mulberry fruits, the anthocyanin content was well correlated with the transcripts abundance of MadFR, MaANS, and MaCHS（encoding chalcone synthase）. The skin of female mulberry flowers turns red under irradiance because of up-regulated expressions of MaCHS, MadFR, and MaANS. These three genes may control the anthocyanin biosynthesis in mulberry and up-regulation of them may greatly increase the anthocyanin content. Additional key words: anthocyanidin synthase, chalcone isomerase, chalcone synthase, dihydroflavonol reductase, flavanone-3- hydroxylase, phenylalanine ammonia lyase.

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Bioactive Materials 2023年第2期20卷 259-270页

作者： Jiangchao Wu xun Wang li Chen Jianing Wang Junlei zhang Jianghui Tang yongtao Ji Jinyuan Song lin Wang yaxing zhao Hui zhang Taohong li Jianpeng Sheng dong Chen qi zhang Tingbo liang department of Hepatobiliary and Pancreatic Surgery The First Affiliated HospitalZhejiang University School of MedicineHangzhou310003China zhejiang Provincial Key laboratory of Pancreatic disease The First Affiliated HospitalZhejiang University School of MedicineHangzhou310003China zhejiang University Cancer Center Zhejiang UniversityHangzhou310003China department of Medical Oncology The First Affiliated HospitalSchool of MedicineZhejiang University#79 Qingchun RoadHangzhouZhejiang Province310003China College of Energy Engineering and State Key laboratory of Fluid Power and Mechatronic Systems Zhejiang UniversityHangzhou310027China

Rationale:Hypoxia in tumor microenvironment(TME)represents an obstacle to the efficacy of immunotherapy for pancreatic ductal adenocarcinoma(PdAC)through several aspects such as increasing the expression of immune checkpoints or promoting *** hypoxic TME is a potential strategy to improve the validity of immune checkpoint blockade(ICB).Methods:Here,we synthesized polydopamine-nanoparticle-stabilized oxygen microcapsules with excellent stabilization,bioavailability,and biocompatibility for direct oxygen delivery into tumor sites by interfacial ***:We observed oxygen microcapsules enhanced the oxygen concentration in the hypoxia environment and maintained the oxygen concentration for a long period both in vitro and in *** found that oxygen microcapsules could significantly improve the efficiency of ICB against PdAC in ***,combined treatments using oxygen microcapsules and ICB could reduce the infiltration of tumor-associated macrophages(TAMs)and polarized pro-tumor M2 macrophages into anti-tumor M1 *** addition,combined treatments could elevate the proportion of T helper subtype 1 cells(Th1 cells)and cytotoxic T lymphocytes cells(CTls)to mediate anti-tumor immune response in ***:In summary,this pre-clinical study indicated that reversing hypoxia in TME by using oxygen microcapsules was an effective strategy to improve the performances of ICB on PdAC,which holds great potential for treating PdAC in the future.

关键词： Hypoxia Pd-1 Tumor microenvironment Pancreatic ductal adenocarcinoma Oxygen microcapsules