检索结果-南通市图书馆

落新妇苷通过调节HIF-1α/VEGF轴抑制乳腺癌细胞的增殖、迁移和血管生成拟态形成

在线全文

学校读者我要写书评

暂无评论

中国肿瘤生物治疗杂志 2024年第8期31卷 796-802页

作者：王媛媛顾玉刘秋霞马胜辉龚志平承德市中心医院检验科河北承德067000 承德市中心医院乳腺外科河北承德067000

目的:探究落新妇苷(AST)调节低氧诱导因子-1α(HIF-1α)/血管内皮生长因子(VEGF)轴对乳腺癌细胞增殖、迁移和血管生成拟态(VM)的影响。方法:用不同浓度的AST(0、5、25、50、100、150、200、300μmol/L)处理乳腺癌细胞MCF-7、MDA-MB-231... 详细信息

目的:探究落新妇苷(AST)调节低氧诱导因子-1α(HIF-1α)/血管内皮生长因子(VEGF)轴对乳腺癌细胞增殖、迁移和血管生成拟态(VM)的影响。方法:用不同浓度的AST(0、5、25、50、100、150、200、300μmol/L)处理乳腺癌细胞MCF-7、MDA-MB-231,采用CKK-8法检测细胞活力。将MCF-7、MDA-MB-231细胞分为对照组、AST低剂量(AST-L)组、AST中剂量(AST-M)、AST高剂量(AST-H)组、AST-H+DMOG(HIF-1α/VEGF通路激活剂)组,EdU法检测AST处理对乳腺癌细胞增殖的影响,流式细胞术检测其对细胞凋亡的影响,Transwell小室实验检测其对细胞迁移、侵袭能力的影响,matrigel管型形成实验检测其对细胞VM形成的影响,WB法检测对细胞中HIF-1α、VEGF、VE-cadherin、E-cadherin、N-cadherin、MMP-2表达的影响。结果:与0μmol/L AST相比,5、25、50、100、150、200、300μmol/L AST处理的细胞活力显著下降,呈剂量依赖性(P<0.05)。与对照组相比,AST-L、AST-M、AST-H组细胞EdU阳性率、细胞迁移数、细胞侵袭数、VM管腔数目、HIF-1α、VEGF、VE-cadherin、N-cadherin、MMP-2表达均显著下降,而细胞凋亡率、E-cadherin蛋白表达显著升高(均P<0.05);与AST-H组相比,AST-H+DMOG组细胞EdU阳性率、细胞迁移数、细胞侵袭数、VM管腔数目、HIF-1α、VEGF、VE-cadherin、N-cadherin、MMP-2表达均显著升高,而细胞凋亡率、E-cadherin蛋白表达均显著下降(均P<0.05)。结论:AST能抑制乳腺癌细胞增殖、迁移、侵袭和VM形成,促进凋亡,其作用机制可能与抑制HIF-1α/VEGF信号通路有关。

关键词：乳腺癌落新妇苷增殖迁移血管生成拟态低氧诱导因子-1α/血管内皮生长因子

深冷循环对SiC/Al复合材料宏微观残余应力的影响

在线全文

学校读者我要写书评

暂无评论

金属学报 2024年第8期60卷 1031-1042页

作者：谷黎明冯效铭于朝张峻凡刘振宇何伦华卢怀乐李小虎王晨张晓东肖伯律马宗义中国科学院金属研究所、师昌绪先进材料创新中心沈阳110016 中国科学技术大学、材料科学与工程学院沈阳110016 散裂中子源科学中心东莞523803 中国科学院物理研究所、北京凝聚态物理国家研究中心北京100190 松山湖材料实验室东莞523808 中国科学院高能物理研究所北京100049

铝基碳化硅(SiC/Al)复合材料因其高比模量、高比强度和良好尺寸稳定性等特点广泛应用于精密光学领域。SiC/Al复合材料热处理过程中产生的宏/微观残余应力是影响其尺寸稳定性的关键因素。为了阐明残余应力的降低方法和效果,提高精密光学... 详细信息

铝基碳化硅(SiC/Al)复合材料因其高比模量、高比强度和良好尺寸稳定性等特点广泛应用于精密光学领域。SiC/Al复合材料热处理过程中产生的宏/微观残余应力是影响其尺寸稳定性的关键因素。为了阐明残余应力的降低方法和效果,提高精密光学零件的尺寸稳定性,本工作使用中子衍射和有限元模拟,分析了深冷循环处理对于体积分数为35%的SiC/6092Al复合材料在退火状态下宏微观残余应力的影响,研究了深冷循环次数、样品尺寸、增强相颗粒尺寸和深冷循环温度差等影响因素。结果表明,深冷循环能引起基体塑性应变,从而显著降低退火态SiC/Al复合材料的相应力,并且随着深冷循环次数的增加,单次循环相应力降低效果减弱。深冷循环导致的塑性应变集中在颗粒周围的基体,主要影响颗粒和周围基体的相应力大小,与样品尺寸无明显关联,并且深冷循环不增加退火态样品的宏观残余应力。复合材料多次深冷循环后的相应力降低量与SiC颗粒尺寸无关,并且,多次深冷循环对相应力的降低效果与深冷循环温度差关系较小,100~-196℃和200~-196℃进行多次深冷循环对相应力的改变十分接近。

关键词：深冷循环中子衍射残余应力有限元方法代表性体积单元

Bioinspired molecules design for bilateral synergistic passivation in buried interfaces of planar perovskite solar cells

在线全文

学校读者我要写书评

暂无评论

Nano Research 2022年第2期15卷 1069-1078页

作者： Bin wang Junjie ma Zehua Li Gangshu Chen Qiang gu Shuyao Chen Yiqiang Zhang Yanlin Song Jingbo Chen xiaodong Pi Xuegong yu Deren Yang School of materials Science and Engineering Henan Institute of Advanced TechnologyZhengzhou UniversityZhengzhou 450001China Key Laboratory of Green Printing Institute of ChemistryChinese Academy of Sciences100190 BeijingChina State Key Laboratory of Silicon materials&School of materials Science and Engineering Zhejiang UniversityHangzhou 310027China

Trap-mediated energy loss in the buried interface with non-exposed feature constitutes one of the serious challenges for achieving high-performance perovskite solar cells(PSCs).Inspired by the adhesion mechanism of mussels,herein,three catechol derivatives with functional Lewis base groups,namely 3,4-Dihydroxyphenylalanine(DOPA),3,4-Dihydroxyphenethylamine(DA)and 3-(3,4-Dihydroxyphenyl)propionic acid(DPPA),were strategically *** molecules as interfacial linkers are incorporated into the buried interface between perovskite and SnO_(2) surface,achieving bilateral synergetic passivation *** crosslinking can produce secondary bonding with the undercoordinated Pb^(2+) and Sn^(4+) *** PSCs treated with DOPA exhibited the best performance and operational *** the DOPA passivation,a stabilized power conversion efficiency(PCE)of 21.5%was demonstrated for the planar *** 55 days of room-temperature storage,the unencapsulated devices with the DOPA crosslinker could still maintain 85%of their initial performance in air under relative humidity of-15%.This work opens up a new strategy for passivating the buried interfaces of perovskite photovoltaics and also provides important insights into designing defect passivation agents for other perovskite optoelectronic devices,such as light-emitting diodes,photodetectors,and lasers.

关键词： perovskite solar cells bioinspired bilateral passivation buried interfaces catechol derivatives

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

课程思政在人体结构与功能学教学中的应用

蚌埠医学院学报 2024年第6期49卷 830-834页

作者：杨丽娟刘冬播王元元叶红伟胡小冬马善峰于影高琴蚌埠医科大学基础医学院安徽蚌埠233030

目的:在人体结构与功能学教学过程中有机融入课程思政内容,提高基础医学整合课程教学质量和育人功能。方法:采用随机抽样的原则,选择某医科大学2021级生物科学专业55名学生为观察组,2021级生物医学科学专业及生物技术专业84名学生为对... 详细信息

目的:在人体结构与功能学教学过程中有机融入课程思政内容,提高基础医学整合课程教学质量和育人功能。方法:采用随机抽样的原则,选择某医科大学2021级生物科学专业55名学生为观察组,2021级生物医学科学专业及生物技术专业84名学生为对照组。观察组在日常教学中采用融入案例的导入式教学、PBL教学、视频、讨论等多样化的手段和方式将课程思政有机融入到教学过程中;对照组在教学中将思政内容融入传统教学模式。比较2组平时成绩、试卷成绩及期末总评成绩,对比2组知识维度、价值观维度及行为维度满意度,分析成绩与各维度满意度之间的相关性。结果:观察组平时成绩低于对照组(P<0.01),试卷成绩和期末总评成绩均高于对照组(P<0.01)。观察组知识维度各层面、价值观维度层面除价值观维度中内在修养的形成、高尚医德的培养外的满意程度均高于对照组(P<0.05~P<0.01),行为维度上仅有对义务献血、志愿者服务的参与度和对课程学习的主动性的满意程度高于对照组(P<0.01和P<0.05)。结论:多途径课程思政元素融入课程教学有助于提高学生学习兴趣和学习效果,改善学生价值观,实现立德树人的教学目标。

关键词：医学教育课程思政人体结构与功能学立德树人

异基因造血干细胞移植治疗合并肝腺瘤血液病患者8例临床分析

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

中华血液学杂志 2024年第9期45卷 816-820页

作者：何云徐郑丽马瑞刘静张园园吕萌莫晓冬闫晨华孙于谦张新羽王昱张晓辉黄晓军许兰平北京大学人民医院血液科北京大学血液病研究所国家血液系统疾病临床医学研究中心造血干细胞移植治疗血液病北京市重点实验室北京北京大学人民医院影像科北京

目的评估异基因造血干细胞移植(allo-HSCT)治疗合并肝腺瘤的血液病患者的安全性。方法纳入2010年1月至2024年3月在北京大学人民医院血液科接受allo-HSCT的8例合并肝腺瘤血液病患者, 对其临床特征及预后进行回顾性分析。结果 8例患者中,... 详细信息

目的评估异基因造血干细胞移植(allo-HSCT)治疗合并肝腺瘤的血液病患者的安全性。方法纳入2010年1月至2024年3月在北京大学人民医院血液科接受allo-HSCT的8例合并肝腺瘤血液病患者, 对其临床特征及预后进行回顾性分析。结果 8例患者中, 再生障碍性贫血7例, 骨髓增生异常综合征低增生型1例, 中位年龄23(13～48)岁, 原发病诊断到移植的中位时间为14(6～24)年。服用雄激素到诊断肝腺瘤的中位时间为9(5～13)年。单倍体移植6例, 全相合无关供者、全相合同胞供者移植各1例。8例患者中位中性粒细胞植入时间为11.5(11～20)d, 中位血小板植入时间为19(10～37)d。7例患者移植后发生巨细胞病毒血症, 3例患者发生出血性膀胱炎, 2例患者发生急性GVHD。8例患者移植期间及移植后均未出现严重肝功能损害及肝腺瘤破裂出血。4例患者移植后影像学评估肝腺瘤不同程度缩小, 另外4例无明显变化。中位随访时间540.5(30～2 989)d, 8例中6例存活, 2例死亡, 死亡与肝腺瘤无直接相关性。结论肝腺瘤对血液病患者allo-HSCT的安全性无不良影响。

关键词：腺瘤, 肝细胞异基因造血干细胞移植再生障碍性贫血骨髓增生异常综合征

Antibody-dependent cellular cytotoxicity response to SARS-CoV-2 in COVID-19 patients

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Signal Transduction and Targeted Therapy 2021年第10期6卷 3132-3141页

作者： yuanling yu Meiyu wang Xiaoai Zhang Shufen Li Qingbin Lu Haolong Zeng Hongyan Hou Hao Li Mengyi Zhang Fei Jiang Jiajing Wu Ruxia Ding Zehua Zhou Min Liu Weixue Si Tao Zhu Hangwen Li Jie ma yuanyuan gu guangbiao She Xiaokun Li yulan Zhang Ke Peng Weijin Huang Wei Liu Youchun wang Division of HIV/AIDS and Sex-transmitted Virus Vaccines Institute for Biological Product ControlNational Institutes for Food and Drug Control(NIFDC)BeijingChina Graduate School of Peking Union Medical College Chinese Academy of Medical SciencesPeking Union Medical CollegeBeijingChina State Key Laboratory of Pathogen and Biosecurity Beijing Institute of Microbiology and EpidemiologyBeijingChina State Key Laboratory of Virology Wuhan Institute of VirologyChinese Academy of SciencesWuhanHubeiChina Department of Laboratorial Science and Technology School of Public HealthPeking UniversityBeijingChina Department of Laboratory Medicine Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina Sinovac Biotech Co. LtdBeijingChina Cansino Biotech Incorporation TianjinChina Stemirna Therapeutics LtdShanghaiChina Anhui Zhifeilongcom Biopharmaceutical Co. LtdHefeiChina University of Chinese Academy of Sciences BeijingChina

Antibody-dependent cellular cytotoxicity(ADCC)responses to viral infection are a form of antibody regulated immune responses mediated through the Fc *** severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)triggered ADCC responses contributes to COVID-19 disease development is currently not well *** understand the potential correlation between ADCC responses and COVID-19 disease development,we analyzed the ADCC activity and neutralizing antibody response in 255 individuals ranging from asymptomatic to fatal infections over 1 year post *** was elicited by 10 days post-infection,peaked by 11-20 days,and remained detectable until 400 days *** general,patients with severe disease had higher ADCC ***,patients who had severe disease and recovered had higher ADCC activities than patients who had severe disease and ***,ADCC activities were mediated by a diversity of epitopes in SARS-COV-2-infected mice and induced to comparable levels against SARS-CoV-2 variants of concern(VOCs)(B.1.1.7,B.1.351,and P.1)as that against the D614G mutant in human patients and vaccinated *** study indicates anti-SARS-CoV-2 ADCC as a major trait of COVID-19 patients with various conditions,which can be applied to estimate the extra-neutralization level against COVID-19,especially lethal COVID-19.

关键词： patients ADCC Antibody

CEPC Technical Design Report

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

Radiation Detection Technology and Methods 2024年第1期8卷 I0003-I0016,1-1091页

作者： Waleed Abdallah Tiago Carlos Adorno de Freitas Konstantin Afanaciev Shakeel Ahmad Ijaz Ahmed Xiaocong Ai Abid Aleem Wolfgang Altmannshofer Fabio Alves Weiming An Rui An Daniele Paolo Anderle Stefan Antusch Yasuo Arai Andrej Arbuzov Abdesslam Arhrib Mustafa Ashry Sha Bai yu Bai Yang Bai Vipul Bairathi Csaba Balazs Philip Bambade Yong Ban Tripamo Bandyopadhyay Shou-Shan Bao Desmond P.Barber Ayse Bat Varvara Batozskaya Subash Chandra Behera Alexander Belyaev Michele Bertucci Xiao-Jun Bi yuanjie Bi Tianjian Bian Fabrizio Bianchi Thomas Biekotter Michela Biglietti Shalva Bilanishvili Deng Binglin Denis Bodrov Anton Bogomyagkov Serge Bondarenko Stewart Boogert maarten Boonekamp marcello Borri Angelo Bosotti Vincent Boudry Mohammed Boukidi Igor Boyko Ivanka Bozovic Giuseppe Bozzi Jean-Claude Brient Anastasiia Budzinskaya masroor Bukhari Vladimir Bytev Giacomo Cacciapaglia Hua Cai Wenyong Cai Wujun Cai Yijian Cai Yizhou Cai yuchen Cai Haiying Cai Huacheng Cai Lorenzo Calibbi Junsong Cang guofu Cao Jianshe Cao Antoine Chance Xuejun Chang yue Chang Zhe Chang Xinyuan Chang Wei Chao Auttakit Chatrabhuti Yimin Che yuzhi Che Bin Chen Danping Chen Fuqing Chen Fusan Chen Gang Chen guoming Chen Hua-Xing Chen Huirun Chen Jinhui Chen Ji-yuan Chen Kai Chen mali Chen Mingjun Chen Mingshui Chen Ning Chen Shanhong Chen Shanzhen Chen Shao-Long Chen Shaomin Chen Shiqiang Chen Tianlu Chen Wei Chen Xiang Chen Xiaoyu Chen Xin Chen Xun Chen Xurong Chen Ye Chen Ying Chen yukai Chen Zelin Chen Zilin Chen Gang Chen Boping Chen Chunhui Chen Hok Chuen Cheng Huajie Cheng Shan Cheng Tongguang Cheng yunlong Chi Pietro Chimenti Wen Han Chiu guk Cho Ming-Chung Chu Xiaotong Chu Ziliang Chu guglielmo Coloretti Andreas Crivellin Hanhua Cui Xiaohao Cui Zhaoyuan Cui Brunella D'Anzi Ling-yun Dai Xinchen Dai Xuwen Dai Antonio De maria Nicola De Filippis Christophe De La Taille Francesca De Mori Chiara De Sio Elisa Del Core Shuangxue Deng Wei-Tian Deng Zhi Deng Ziyan Deng Bhupal Dev Tang Dewen Biagio Di Micco Ran Ding Siqin Dingl Yadong Ding Haiyi Dong Jianin AGH University of Science and Technology Faculty of Physics and Applied Computer ScienceKrakow Anhui University HefeiAnhui Applied Physics Department Federal Urdu University of ArtsScience and TechnologyIslamabad Banaras Hindu University Institute of ScienceVaranasi Bandirma Onyedi Eylul University Bandirma Beihang University Beijing Beijing Computational Science Research Center Beijing Beijing Conveyi LTD Beijing Beijing Glass Research Institute Co. LtdBeijing Beijing Institute of Technology Beijing Beijing Normal University Beijing Brown University ProvidenceRI Budker Institute of Nuclear Physics Novosibirsk Cadi Ayyad University Laboratory of Fundamental and Applied PhysicsPolydisciplinary FacultyMarrakech Cairo University Giza Center for Theory and Computation National Tsing Hua UniversityHsinchu Central China Normal University WuhanHubei Central South University ChangshaHunan Centro de Fisica Teorica de Particulas Universidade Tecnica de LisboaLisboa Chengdu KaitengSifang Digital Radio&TV Equipment Co. LtdChengduSichuan China academy of engineering physics MianyangSichuan China building materials academy Beijing China Center of Advanced Science and Technology Beijing China Institute of Atomic Energy Beijing China Jiliang University HangzhouZhejiang China Nuclear Instrument CO. LTDBeijing China University of Geosciences Beijing China University of Geosciences WuhanHubei China University of Mining and Technology XuzhouJiangsu China West Normal University NanchongSichuan Chongqing University Department of PhysicsChongqing Chulalongkorn University Bangkok City University of Hong Kong Department of PhysicsHong Kong Cockcroft Institute Daresbury Cornell University IthacaNY CPPM(AMU/IPhU&CNRS/INP) Marseille Dalian Minzu University DalianLiaoning Dalian University of Technology Department of PhysicsDalian Deutsches Elektronen-Synchrotron DESY Hamburg Dzhelepov Laboratory of Nuclear Problems of Joint Institute for Nuclear Research(DLNP JINR) Dubna East China University Of Science And Technol

The Circular Electron Positron Collider(CEPC)is a large scientific project initiated and hosted by China,fostered through extensive collaboration with international *** complex comprises four accelerators:a 30 GeV Linac,a 1.1 GeV Damping Ring,a Booster capable of achieving energies up to 180 GeV,and a Collider operating at varying energy modes(Z,W,H,and tt).The Linac and Damping Ring are situated on the surface,while the subterranean Booster and Collider are housed in a 100 km circumference underground tunnel,strategically accommodating future expansion with provisions for a potential Super Proton Proton Collider(SPPC).The CEPC primarily serves as a Higgs *** its baseline design with synchrotron radiation(SR)power of 30 MW per beam,it can achieve a luminosity of 5×10^(34)cm^(-2)s^(-1)per interaction point(IP),resulting in an integrated luminosity of 13 ab^(-1)for two IPs over a decade,producing 2.6 million Higgs *** the SR power to 50 MW per beam expands the CEPC's capability to generate 4.3 million Higgs bosons,facilitating precise measurements of Higgs coupling at sub-percent levels,exceeding the precision expected from the HL-LHC by an order of *** Technical Design Report(TDR)follows the Preliminary Conceptual Design Report(Pre-CDR,2015)and the Conceptual Design Report(CDR,2018),comprehensively detailing the machine's layout,performance metrics,physical design and analysis,technical systems design,R&D and prototyping efforts,and associated civil engineering ***,it includes a cost estimate and a preliminary construction timeline,establishing a framework for forthcoming engineering design phase and site selection *** is anticipated to begin around 2027-2028,pending government approval,with an estimated duration of 8 *** commencement of experiments and data collection could potentially be initiated in the mid-2030s.

关键词： initiated exceeding precise

Detecting neutrinos from supernova bursts in PandaX-4T

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

Chinese Physics C 2024年第7期48卷 14-21页

作者：庞彬宇阿布都沙拉木·阿布都克力木薄子豪陈葳谌勋程晨成兆侃崔祥仪樊英杰方德清符长波付孟婷耿立升 Karl Giboni 顾琳慧郭绪元韩晨成韩柯何昶达何金荣黄迪黄彦霖黄俊挺黄周侯汝全侯钰季向东巨永林李晨翔李家富李名川李帅杰李涛林箐刘江来陆聪聪芦晓盈罗棱尹罗云阳马文博马余刚冒亚军孟月宁旭阳祁宁春钱志成任祥祥 Nasir Shaheed 尚晓凤邵熙元申国防司琳孙文良谈安迪陶奕王安庆王萌王秋红王少博王思广王为王秀丽王舟魏月环武蒙蒙邬维浩夏经铠肖梦姣肖翔谢鹏伟燕斌斌颜玺雨杨继军杨勇姚玉坤喻纯旭袁影苑哲鑫宁张丹张敏桢张鹏张世博张澍张涛张洋张瀛心张园园赵力郑其斌周济芳周宁周小朋周永周钰博 New Cornerstone Science Laboratory Tsung-Dao Lee InstituteShanghai Jiao Tong UniversityShanghai200240China Research Center for Particle Science and Technology Institute of Frontier and Interdisciplinary ScienceShandong UniversityQingdao 266237ShandongChina Key Laboratory of Particle Physics and Particle Irradiation of Ministry of Education Shandong UniversityQingdao 266237ShandongChina School of Physics and Astronomy Shanghai Jiao Tong UniversityKey Laboratory for Particle Astrophysics and Cosmology(MoE)Shanghai Key Laboratory for Particle Physics and CosmologyShanghai 200240China Shanghai Jiao Tong University Sichuan Research Institute Chengdu 610213China School of Physics Sun Yat-Sen UniversityGuangzhou 510275China Sino-French Institute of Nuclear Engineering and Technology Sun Yat-Sen UniversityZhuhai519082China Department of Physics Yantai UniversityYantai 264005China Key Laboratory of Nuclear Physics and Ion-beam Application(MOE) Institute of Modern PhysicsFudan UniversityShanghai 200433China School of Physics Peking UniversityBeijing 100871China School of Physics Beihang UniversityBeijing 102206China International Research Center for Nuclei and Particles in the Cosmos&Beijing Key Laboratory of Advanced Nuclear materials and Physics Beihang UniversityBeijing 100191China School of Physics and Microelectronics Zhengzhou UniversityZhengzhouHenan 450001China Yalong River Hydropower Development Company Ltd.288 Shuanglin RoadChengdu 610051China School of Medical Instrument and Food Engineering University of Shanghai for Science and TechnologyShanghai 200093China School of Mechanical Engineering Shanghai Jiao Tong UniversityShanghai 200240China Department of Physics University of MarylandCollege ParkMaryland 20742USA State Key Laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China Department of Modern Physics University of Science and Technology of ChinaHefei 230026China School of Physics Nankai UniversityTian

Neutrinos from core-collapse supernovae are essential for understanding neutrino physics and stellar ***-phase xenon dark matter detectors can be used to track explosions of galactic supernovae by detecting neutrinos through coherent elastic neutrino-nucleus *** this study,a variation of progenitor masses and explosion models are assumed to predict neutrino fluxes and spectra,which result in the number of expected neutrino events ranging from 6.6 to 13.7 at a distance of 10 kpc over a 10-s duration with negligible backgrounds at *** specialized triggering alarms for monitoring supernova burst neutrinos are *** efficiency of detecting supernova explosions at various distances in the Milky Way is *** alarms will be implemented in the real-time supernova monitoring system at PandaX-4T in the near future,which will provide supernova early warnings for the astronomical community.

关键词： core-collapse supernovae neutrinos liquid xenon detectors supernova early warnings

Exploring catalytic behaviors of CoS_(2)-ReS_(2) heterojunction by interfacial engineering

在线全文

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2023年第10期85卷 11-18,I0002页

作者： Jianmin yu Yongteng Qian Sohyeon Seo Yang Liu Huong T.D.Bui Ngoc Quang Tran Jinsun Lee Ashwani Kumar Hongdan wang Yongguang Luo xiaodong Shao yunhee Cho Xinghui Liu Min Gyu Kim Hyoyoung Lee Department of Chemistry Sungkyunkwan University(SKKU)Suwon 16419Republic of Korea Center for Integrated Nanostructure Physics(CINAP) Institute of Basic Science(IBS)Suwon 16419Republic of Korea College of Pharmacy Jinhua PolytechnicJinhua 321007ZhejiangChina Beamline Research Division Pohang Accelerator Laboratory(PAL)Pohang University of Science and TechnologyPohang 37673Republic of Korea Department of Biophysics Sungkyunkwan University2066 SeoburoJangan-guSuwon 16419Republic of Korea Creative Research Institute Sungkyunkwan University2066 SeoburoJangan-guSuwon 16419Republic of Korea

Herein, a stable and efficient CoS_(2)-ReS_(2) electrocatalyst is successfully constructed by using the different molar ratios of CoS_(2) on ReS_(2). The size and morphology of the catalysts are significantly changed after the CoS_(2) is grown on ReS_(2), providing regulation of the catalytic activity of ReS_(2). Particularly, the optimized CoS_(2)-ReS_(2) shows superior electrocatalytic properties with a low voltage of 1.48 V at 20 ma cm^(-2) for overall water splitting in 1.0 M KOH, which is smaller than the noble metal-based catalysts(1.77 V at 20 ma cm^(-2)). The XPS, XAS, and theoretical data confirm that the interfacial regulation of ReS_(2) by CoS_(2) can provide rich edge catalytic sites, which greatly optimizes the catalytic kinetics and drop the energy barrier for oxygen/hydrogen evolution reactions. Our results demonstrated that interfacial engineering is an efficient route for fabricating high-performance water splitting electrocatalysts.

关键词： CoS_(2) ReS_(2) Interfacial engineering Catalytic kinetics Water splitting