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Science Bulletin 2024年第18期69卷 2833-2841页

作者： Cao, Zhen Aharonian, F. Axikegu Bai, y.X. Bao, y.W. Bastieri, D. Bi, X.J. Bi, y.J. Bian, W. Bukevich, A.V. Cao, Q. Cao, W.y. Cao, Zhe Chang, J. Chang, J.F. chen, A.m. chen, E.S. chen, H.X. chen, Liang chen, Lin chen, Long chen, m.J. chen, m.L. chen, Q.H. chen, S. chen, S.H. chen, S.Z. chen, T.L. chen, y. cheng, N. cheng, y.D. Cui, m.y. Cui, S.W. Cui, X.H. Cui, y.D. dai, B.Z. dai, H.L. dai, Z.G. Danzengluobu Dong, X.Q. Duan, K.K. Fan, J.H. Fan, y.Z. Fang, J. Fang, J.H. Fang, K. Feng, C.F. Feng, H. Feng, L. Feng, S.H. Feng, X.T. Feng, y. Feng, y.L. Gabici, S. Gao, B. Gao, C.D. Gao, Q. Gao, W. Gao, W.K. Ge, m.m. Geng, L.S. Giacinti, G. Gong, G.H. Gou, Q.B. Gu, m.H. Guo, F.L. Guo, X.L. Guo, y.Q. Guo, y.y. Han, y.A. Hasan, m. He, H.H. He, H.N. He, J.y. He, y. Hor, y.K. Hou, B.W. Hou, C. Hou, X. Hu, H.B. Hu, Q. Hu, S.C. Huang, D.H. Huang, T.Q. Huang, W.J. Huang, X.T. Huang, X.y. Huang, y. Ji, X.L. Jia, H.y. Jia, K. Jiang, K. Jiang, X.W. Jiang, Z.J. Jin, m. Kang, m.m. Karpikov, I. Kuleshov, D. Kurinov, K. Li, B.B. Li, C.m. Li, cheng Li, Cong Li, D. Li, F. Li, H.B. Li, H.C. Li, Jian Li, Jie Li, K. Li, S.D. Li, W.L. Li, X.R. Li, Xin Li, y.Z. Li, Zhe Li, Zhuo Liang, E.W. Liang, y.F. Lin, S.J. Liu, B. Liu, C. Liu, D. Liu, D.B. Liu, H. Liu, H.D. Liu, J. Liu, J.L. Liu, m.y. Liu, R.y. Liu, S.m. Liu, W. Liu, y. Liu, y.N. Luo, Q. Luo, y. Lv, H.K. m., B.Q. m., L.L. m., X.H. m.o, J.R. m.n, Z. m.tthum.iri, W. m., H.J. Nan, y.C. Neronov, A. Ou, L.J. Pattarakijwanich, P. Pei, Z.y. Qi, J.C. Qi, m.y. Qiao, B.Q. Qin, J.J. Raza, A. Ruffolo, D. Sáiz, A. Saeed, m. Sem.koz, D. Shao, L. Shchegolev, O. Sheng, X.D. Shu, F.W. Song, H.C. Stenkin, y..V. Stepanov, V. Su, y. Sun, D.X. Sun, Q.N. Sun, X.N. Sun, Z.B. Takata, J. Tam. P.H.T. Key.Laboratory.of Particle Astrophy.ics & Experim.ntal Phy.ics Division & Com.uting Center Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China University.of Chinese Academ. of Sciences Beijing 100049 China TIANFU Cosm.c Ray.Research Center Chengdu China Dublin Institute for Advanced Studies 31 Fitzwilliam Place 2 Dublin Ireland m.x-Planck-Institut for Nuclear Phy.ics P.O. Box 103980 Heidelberg 69029 Germany School of Phy.ical Science and Technology.& School of Inform.tion Science and Technology Southwest Jiaotong University Chengdu 610031 China School of Astronom. and Space Science Nanjing University Nanjing 210023 China Center for Astrophy.ics Guangzhou University Guangzhou 510006 China Tsung-Dao Lee Institute & School of Phy.ics and Astronom. Shanghai Jiao Tong University Shanghai 200240 China Institute for Nuclear Research of Russian Academ. of Sciences Moscow 117312 Russia Hebei Norm.l University Shijiazhuang 050024 China University.of Science and Technology.of China Hefei 230026 China State Key.Laboratory.of Particle Detection and Electronics China Key.Laboratory.of Dark m.tter and Space Astronom. & Key.Laboratory.of Radio Astronom. Purple Mountain Observatory Chinese Academy of Sciences Nanjing 210023 China Research Center for Astronom.cal Com.uting Zhejiang Laboratory Hangzhou 311121 China Key.Laboratory.for Research in Galaxies and Cosm.logy Shanghai Astronomical Observatory Chinese Academy of Sciences Shanghai 200030 China School of Phy.ics and Astronom. Yunnan University Kunming 650091 China Key.Laboratory.of Cosm.c Ray. (Tibet University. Ministry of Education Lhasa 850000 China National Astronom.cal Observatories Chinese Academy of Sciences Beijing 100101 China School of Phy.ics and Astronom. (Zhuhai) & School of Phy.ics (Guangzhou) & Sino-French Institute of Nuclear engineering and Technology.(Zhuhai) Sun Yat-sen University Zhuhai 519000 & Guangzhou 510275 Guangdong China Institute of Frontier and

The γ-ray.em.ssion from.the W51 com.lex is widely.acknowledged to be attributed to the interaction between the cosm.c ray. (CRs) accelerated by.the shock of supernova rem.ant (SNR) W51C and the dense m.lecular clouds in the adjacent star-form.ng region, W51B. However, the m.xim.m.acceleration capability.of W51C for CRs rem.ins elusive. Based on observations conducted with the Large High Altitude Air Shower Observatory.(LHAASO), we report a significant detection of γ ray. em.nating from.the W51 com.lex, with energies from.2 to 200 TeV. The LHAASO m.asurem.nts, for the first tim., extend the γ-ray.em.ssion from.the W51 com.lex bey.nd 100 TeV and reveal a significant spectrum.bending at tens of TeV. By.com.ining the "π0-decay.bum." featured data from.Ferm.-LAT, the broadband γ-ray.spectrum.of the W51 region can be well-characterized by.a sim.le pp-collision m.del. The observed spectral bending feature suggests an exponential cutoff at ∼400 TeV or a power-law break at ∼200 TeV in the CR proton spectrum. m.st likely.providing the first evidence of SNRs serving as CR accelerators approaching the PeV regim.. Additionally. two y.ung star clusters within W51B could also be theoretically.viable to produce the m.st energetic γ ray. observed by.LHAASO. Our findings strongly.support the presence of extrem. CR accelerators within the W51 com.lex and provide new insights into the origin of Galactic CRs. © 2024 Science China Press

关键词： Cosm.c ray.

Preparation of a Novel Green Fluorescent Carbon Quantum.Dots and Application in Fe^(3+)-Specific Detection in Biological Sy.tem

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Journal of Analy.is and Testing 2024年第1期8卷 40-51页

作者： Xianfen Zhang Wenxian Wang Lijiao Guan Huajie chen dai Li Lipeng Zhang Saipeng Huang School of chemical engineering Northwest UniversityXi'an 710069China chemical Technology.Academ. of Shandong Province Qingdao University of Science and TechnologyJinan250014China

Trace ferric ion(Fe^(3+))detection has attracted increasing attention as an essential and indispensable role in m.ny.phy.iological and pathological *** green-em.tting carbon quantum.dots(Green-CQDs)were obtained through a green and facile one-step hy.rotherm.l m.thod for the specific recognition and trace detection of Fe^(3+)in this *** optim.l excitation and em.ssion wavelengths of the CQDs were 395 nm.and 490 nm.*** stokes shift was up to 95 nm.which can effectively.reduce the background fluorescence *** addition,it also exhibited good water solubility.stability.and high *** fluorescence intensity.of Green-CQDs was linearly.related to the concentration of Fe^(3+)(range of 0-80μm.l/L),and the detection lim.t was as low as 59 nm.l/*** good properties were favorable and successful for Fe^(3+)detection in tap water,hum.n serum.sam.les and living *** addition,a fluorescence visual test paper(FP@CQDs)was prepared utilizing filter paper as carrier,which can quickly.identify.Fe^(3+)in real tim.,and is suitable for the visualization analy.is of Fe^(3+)in *** an efficient nanoprobe,the Green-CQDs held great prom.se and bright prospects in practical application in prevention and early.clinical diagnosis of Fe^(3+)-associated diseases.

关键词： Carbon quantum.dots Fluorescent Hy.rotherm.l Fe^(3+)-specific detection Cell im.ging

Enhancing Green Am.onia Electrosy.thesis Through Tuning Sn Vacancies in Sn‑Based m.ene/ m.X Hy.rids

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Nano-m.cro Letters 2024年第5期16卷 154-168页

作者： Xiny. dai Zhen‑y. Du y.ng Sun Ping chen Xiaoguang Duan Junjun Zhang Hui Li y.ng Fu Baohua Jia Lei Zhang Wenhui Fang Jieshan Qiu Tiany. m. Key.Laboratory.for Green Sy.thesis and Preparative Chem.stry.of Advanced m.terials of Liaoning Province College of ChemistryInstitute of Clean Energy ChemistryLiaoning UniversityShenyang 110036People’s Republic of China State Key.Laboratory.of Clean and Efficient Coal Utilization Taiyuan University of TechnologyTaiyuan 030024People’s Republic of China School of Chem.stry.and chemical engineering Anhui UniversityHefei 230601People’s Republic of China School of chemical engineering The University of AdelaideAdelaideSA 5005Australia State Key.Laboratory.of High‑Efficiency.Utilization of Coal and Green chemical engineering College of Chemistry and Chemical EngineeringNingxia UniversityYinchuan 750021NingxiaPeople’s Republic of China School of Science RMIT UniversityMelbourneVIC 3000Australia Guangdong Provincial Key.Laboratory.of Advanced Energy.Storage m.terials School of Chemistry and Chemical EngineeringSouth China University of TechnologyGuangzhou 510640People’s Republic of China College of chemical engineering State Key Laboratory of Chemical Resource EngineeringBeijing University of Chemical TechnologyBeijing 100029People’s Republic of China

Renewable energy.driven N_(2) electroreduction with air as nitrogen source holds great prom.se for realizing scalable green am.onia ***,relevant out-lab research is still in its ***,a novel Sn-based m.ene/m.X hy.rid with abundant Sn vacancies,Sn@Ti_(2)CTX/Ti_(2)SnC–V,was sy.thesized by.controlled etching Sn@Ti_(2)SnC m.X phase and dem.nstrated as an efficient electrocataly.t for electrocataly.ic N2 *** to the sy.ergistic effect of m.ene/m.X heterostructure,the existence of Sn vacancies and the highly.dispersed Sn active sites,the obtained Sn@Ti2CTX/Ti_(2)SnC–V exhibits an optim.l NH_(3) y.eld of 28.4μg h^(−1) m._(cat)^(−1) with an excellent FE of 15.57% at−0.4 V versus reversible hy.rogen electrode in 0.1 m.Na_(2)SO_(4),as well as an ultra-long ***,this cataly.t represents a satisfactory.NH3 y.eld rate of 10.53μg h^(−1) m.^(−1) in the hom.-m.de sim.lation device,where com.ercial electrochemical photovoltaic cell was em.loy.d as power source,air and ultrapure water as feed *** as-proposed strategy.represents great potential toward am.onia production in term. of financial cost according to the sy.tem.tic technical econom.c *** work is of significance for large-scale green am.onia production.

关键词： Green am.onia sy.thesis N2 electroreduction Renewable energy Sn m.ene/m.X hy.rid

Designing Sy.0}etric Gradient Honey.om. Structures with Carbon‑Coated Iron‑Based Com.osites for High‑Efficiency.m.crowave Absorption

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Nano-m.cro Letters 2024年第11期16卷 224-241页

作者： y. Zhang Shu‑Hao y.ng y.e Xin Bo Cai Peng‑Fei Hu Hai‑y.ng dai chen‑m.ng Liang y.n‑Tong m.ng Ji‑Hao Su Xiao‑Juan Zhang m.n Lu Guang‑Sheng Wang School of Chem.stry Beihang UniversityBeijing 100191People’s Republic of China School of Electronics and Inform.tion Zhengzhou University of Light IndustryZhengzhou 450002People’s Republic of China School of chemical engineering Northeast Electric Power UniversityJilin 132000People’s Republic of China College of Chem.stry.and m.terials engineering Beijing Technology and Business UniversityBeijing 100048People’s Republic of China

The im.edance m.tching of absorbers is a vital factor affecting their m.crowave absorption(m.)*** this work,we controllably.sy.thesized m.terial of Institute Lavoisier 88C(m.L-88C)with vary.ng aspect ratios(AR)as a precursor by.regulating oil bath conditions,followed by.one-step therm.l decom.osition to obtain carbon-coated iron-based *** the precursor m.L-88C(Fe)preparation conditions,such as the m.lar ratio between m.tal ions and organic ligands(m.O),oil bath tem.erature,and oil bath tim.,influenced the phases,graphitization degree,and AR of the derivatives,enabling low filler loading,achieving well-m.tched im.edance,and ensuring outstanding m. *** m.F-derivatives 2(m._(2))/poly.iny.idene Difluoride(PVDF),m._(3)/PVDF,and m.4/PVDF absorbers all exhibited excellent m. properties with optim.l filler loadings below 20 wt%and as low as 5 wt%.The m._(2)/PVDF(5 wt%)achieved a m.xim.m.effective absorption bandwidth(EAB)of 5.52 GHz(1.90 m.).The m._(3)/PVDF(10 wt%)possessed a m.nim.m.reflection loss(RL_(m.n))value of−67.4 at 12.56 GHz(2.13 m.).A sy.0}etric gradient honey.om. structure(SGHS)was constructed utilizing the high-frequency.structure sim.lator(HFSS)to further extend the EAB,achieving an EAB of 14.6 GHz and a RL_(m.n) of−59.0 *** research offers a viable inspiration to creating structures or m.terials with high-efficiency.m. properties.

关键词： m.L-88C(Fe) Fe/Fe_(3)O_(4)/Fe_(3)C@C Controllable preparation Sy.0}etric gradient honey.om. structure m.crowave absorbing

Bioorthogonal m.croglia-inspired m.senchy.0}l stem.cell bioengineering sy.tem.creates livable niches for enhancing ischem.c stroke recovery.via the horm.sis

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Acta Pharm.ceutica Sinica B 2024年第3期14卷 1412-1427页

作者： Jianpei Xu y.nzhe Sun y.ng y.u y.wen Zhang Dan Huang Songlei Zhou y.pu Liu Shiqiang Tong Fenfen m. Qingxiang Song chengxiang dai Suke Li Jigang Lei Zhihua Wang Xiaoling Gao Jun chen Shanghai Pudong Hospital&department of Pharm.ceutics School of PharmacyFudan UniversityShanghai 201203China Key.Laboratory.of Sm.rt Drug Delivery Ministry of EducationSchool of PharmacyFudan UniversityShanghai 201203China department of Pharm.cology.and chemical Biology State Key Laboratory of Oncogenes and Related GenesShanghai Universities Collaborative Innovation Center for Translational MedicineShanghai Jiao Tong University School of MedicineShanghai 200025China department of Em.rgency Shanghai Pudong HospitalFudan University Pudong Medical CenterShanghai 201399China Institute of Science and Technology.for Brain-Inspired Intelligence&department of Neurology Fudan UniversityShanghai 201203China department of Rehabilitation m.dicine Huashan HospitalFudan UniversityShanghai 201203China Daxing Research Institute University of Science and Technology BeijingBiomedical Industry BaseZhongguancun Science and Technology ParkBeijing 102600China Cellular Biom.dicine Group Inc. Shanghai 201210China

m.senchy.0}l stem.cells(m.Cs)experience substantial viability.issues in the stroke infarct region,lim.ting their therapeutic efficacy.and clinical *** levels of deadly.reactive oxy.en radicals(ROS)and proinflam.atory.cy.okines(PC)in the infarct m.lieu kill transplanted m.Cs,whereas low levels of beneficial ROS and PC stim.late and im.rove engrafted m.Cs’*** on the intrinsic horm.sis effects in cellular biology.we built a m.croglia-inspired m.C bioengineering sy.tem.to transform.detrim.ntal high-level ROS and PC into vitality.enhancers for strengthening m.C *** sy.tem.is achieved by.bioorthogonally.arm.ng m.tabolic gly.oengineered m.Cs with m.croglial m.m.rane-coated nanoparticles and an antioxidative extracellular protective *** this sy.tem.extracellular ROSscavenging and PC-absorbing lay.rs effectively.buffer the deleterious effects and establish a m.crolivable niche at the level of a single m.C for ***,the infarct’s inanim.te m.lieu is transform.d at the tissue level into a new living niche to facilitate *** engineered m.Cs achieved viability.five tim.s higher than natural m.Cs at seven day. after transplantation and exhibited a superior therapeutic effect for stroke recovery.up to 28 *** vitality.augm.nted sy.tem.dem.nstrates the potential to accelerate the clinical translation of m.C treatm.nt and boost stroke recovery.

关键词： Ischem.c stroke m.senchy.0}l stem.cell Cell engineering Horm.sis effect Bioorthogonal chem.stry m.croglia Reactive oxy.en spices Proinflam.atory.cy.okines

m.chanically.driven assem.ly.of biom.m.tic 2D-m.terial m.crotextures with bioinspired m.ltifunctionality

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Nano Research 2024年第2期17卷 663-678页

作者： y.ng Li Lin Jing Joshua m.Little Haochen y.ng Tsai-Chun Chung Po-y.n chen department of chemical and Biom.lecular engineering University of MarylandCollege ParkMD 20740USA m.ry.and Robotics Center University of MarylandCollege ParkMD 20742USA School of m.terials Science and engineering Nanyang Technological University50 Nanyang AvenueSingapore 639798Singapore

Nature provides a wealth of bio-inspiration for advanced m.terial *** various nanom.terials into biom.m.tic m.crotextures with bioinspired functionalities has spurred increasing research interests and facilitated technological advances in various *** recent y.ars,two-dim.nsional m.terials(2Dm.)have em.rged as im.ortant building block units in the biom.m.cry.field due to their distinct chemical,phy.ical,electrical,electrochemical,and cataly.ic *** this review article,various m.chanically.driven assem.ly.approaches are sum.arized to fabricate various genealogies of biom.m.tic 2Dm.m.crotextures with bio-inspired ***,sequential deform.tion strategies are discussed to program.ably.construct higher dim.nsional 2Dm.m.crotextures,ranging from.wrinkles/crum.les(one-tim. deform.tion)to m.ltiscale hierarchies(m.ltiple deform.tions).Next,the current progress using higher dim.nsional 2Dm.m.crotextures to im.tate different biological structures and/or induce bio-inspired m.ltifunctionality.is sy.tem.tically.*** showcases of bio-inspiration and biom.m.cry.using different 2Dm.nanosheets are highlighted:(1)wrinkle patterns of an earthworm.that spur the design of strain sensors with program.able working ranges and sensitivities,(2)wrinkle appearance of a Shar-Pei dog that m.tivates the fabrication of stretchable energy.storage devices,(3)hierarchical scale textures of a desert lizard that inspire cation-induced gelation platform. for 2Dm.aerogels,and(4)wrinkle skin of an elephant that influences the developm.nt of 2Dm.protective skin for soft ***,challenges and future opportunities of adopting 2Dm.nanosheets to assem.le biom.m.tic m.crostructures with sy.ergistic functionalities are discussed.

关键词： two-dim.nsional(2D)m.terials m.chanically.driven assem.ly biom.m.tic m.crotextures functional nanocom.osite bio-inspired m.ltifunctionality

Optim.zation of perform.nce of the Km.A full array.using the Crab Nebula

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Chinese Phy.ics C 2024年第6期48卷 169-178页

作者：曹臻 F.Aharonian 安琪阿西克古白云翔包逸炜 D.Bastieri 毕效军毕玉江蔡金庭曹晴曹文羽曹喆常进常劲帆陈尚明陈恩生陈亮陈林陈龙陈明君陈玛丽陈起辉陈素弘陈天禄陈阳程宁程耀东崔明阳崔树旺崔晓红崔昱东戴本忠代洪亮戴子高单增罗布 D.della Volpe 董绪强段凯凯樊军辉范一中方军方堃冯存峰封莉冯少辉丰晓婷冯有亮 S.Gabici 高博高川东高林青高启高卫高伟康葛茂茂耿利斯 G.Giacinti 龚光华苟全补顾旻皓郭福来郭晓磊郭义庆郭莹莹韩毅昂何会海贺昊宁何佳银何新波何钰 m.Heller 贺远强侯博文侯超侯贤胡红波胡铨胡世聪黄代绘黄天奇黄文俊黄性涛黄晓渊黄勇黄志成季筱璐贾焕玉贾康江琨姜晓巍姜泽军金敏康明铭柯通 D.Kuleshov.K.Kurinov 李兵兵李澄李骢李丹李飞李海波李会财李华阳李军李剑李捷李凯李文龙李文莲李秀荣李昕李一卓李哲黎卓梁恩维梁云峰林苏杰刘冰刘成刘栋刘虎刘海东刘佳刘江来刘金艳刘茂元柳若愚刘四明刘伟刘怡刘以农鲁睿罗晴吕洪魁马伯强马玲玲马欣华毛基荣闵振 W.m.tthum.iri 穆慧君南云程 A.Neronov 区子维庞彬宇 P.Pattarakijwanich 裴致远齐孟尧祁业情乔冰强秦家军 D.Ruffolo A.Sáiz D.Sem.koz 邵澄宇邵琅 O.Shchegolev 盛祥东舒富文宋慧超 y..V.Stenkin V.Stepanov 苏扬孙秦宁孙晓娜孙志斌谭柏轩唐庆文唐泽波田文武王超王昌贝王广威王洪光王惠惠王建成汪凯王利苹王玲玉王培汉王冉王为王祥高王祥玉王阳王玉东王岩谨王忠海王仲翔王振王铮韦大明魏俊杰魏永健文韬吴超勇吴含荣武莎吴雪峰吴雨生席邵强夏捷夏君集项光漫肖迪泫肖刚辛广广辛玉良邢祎熊峥徐东莲徐仁峰徐仁新徐伟立薛良闫大海颜景志颜田杨朝文杨帆杨冯帆杨何文杨佳盈杨莉莉杨明洁杨睿智杨深邦姚玉华姚志国叶一锰尹丽巧尹娜游晓浩游智勇于艳红袁强岳华曾厚敦曾婷轩曾玮查敏张彬彬张丰张海明张恒英张建立张丽霞张力张鹏飞张佩佩张瑞张少博张少如张寿山张潇张笑鹏张云峰张毅张勇赵兵赵静赵雷赵立志赵世平郑福周斌周浩周佳能周猛周平周荣周勋秀祝成光祝凤荣朱辉朱科军左雄 LHAASO Collaboration Key.Laboratory.of Particle Astrophy.cs&Experim.ntal Phy.ics Division&Com.uting Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University.of Chinese Academ. of Sciences Beijing 100049China Tianfu Cosm.c Ray.Research Center Chengdu 610000China Dublin Institute for Advanced Studies 31 Fitzwilliam Place2 DublinIreland m.x-Planck-Institut for Nuclear Phy.ics P.O.Box 10398069029 HeidelbergGermany State Key.Laboratory.of Particle Detection and Electronics China University.of Science and Technology.of China Hefei 230026China School of Phy.ical Science and Technology.School of Inform.tion Science and Technology Southwest Jiaotong UniversityChengdu 610031China School of Astronom. and Space Science Nanjing UniversityNanjing 210023China Center for Astrophy.ics Guangzhou UniversityGuangzhou 510006China Hebei Norm.l University Shijiazhuang 050024China Key.Laboratory.of Dark m.tter and Space Astronom.&Key.Laboratory.of Radio Astronom. Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023China Tsung-Dao Lee Institute&School of Phy.ics and Astronom. Shanghai Jiao Tong UniversityShanghai 200240China Key.Laboratory.for Research in Galaxies and Cosm.logy Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China Key.Laboratory.of Cosm.c Ray.(Tibet University. Ministry of EducationLhasa 850000TibetChina National Astronom.cal Observatories Chinese Academy of SciencesBeijing 100101China School of Phy.ics and Astronom.(Zhuhai)&School of Phy.ics(Guangzhou)&Sino-French Institute of Nuclear engineering and Technology.Zhuhai) Sun Yat-sen UniversityZhuhai 519000&Guangzhou 510275China School of Phy.ics and Astronom. Yunnan UniversityKunming 650091China Départem.nt de Phy.ique Nucléaire et Corpusculaire Facultéde SciencesUniversitéde Genève24 Quai Ernest Ansermet1211 GenevaSwitzerland Institute of Frontier and Interdisciplinary.Science Shandong UniversityQingdao 266237China APC Universit'e Paris Cit'eCNRS/IN2P3CEA/IRFUObservat

The full array.of the Large High Altitude Air Shower Observatory.LHAASO)has been in operation since July.*** its kilom.ter-square array.Km.A),we optim.zed the selection criteria for very.high and ultrahigh energy.-ray. using data collected from.August 2021 to August 2022,resulting in an im.rovem.nt in significance of the detection in the Crab Nebula of approxim.tely.15%,com.ared with that of previous *** the im.lem.ntation of these new selection criteria,the angular resolution was also significantly.im.roved by.approxim.tely.10%at tens of *** aspects of the full Km.A array.perform.nce,such as the pointing error,were also calibrated using the Crab *** resulting energy.spectrum.of the Crab Nebula in the energy.range of 10-1000 TeV are well fitted by.a log-parabola m.del,which is consistent with the previous results from.LHAASO and other experim.nts.

关键词： γ-ray Crab Nebula significance

LHAASO观测发现W51区域粒子能量加速至PeV的证据（英文）

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Science Bulletin 2024年第18期 2833-2841页

作者： Zhen Cao F.Aharonian Axikegu y.X.Bai y.W.Bao D.Bastieri X.J.Bi y.J.Bi W.Bian A.V.Bukevich Q.Cao W.y.Cao Zhe Cao J.Chang J.F.Chang A.m.chen E.S.chen H.X.chen Liang chen Lin chen Long chen m.J.chen m.L.chen Q.H.chen S.chen S.H.chen S.Z.chen T.L.chen y.chen N.cheng y.D.cheng m.y.Cui S.W.Cui X.H.Cui y.D.Cui B.Z.dai H.L.dai Z.G.dai Danzengluobu X.Q.Dong K.K.Duan J.H.Fan y.Z.Fan J.Fang J.H.Fang Kun Fang C.F.Feng H.Feng L.Feng S.H.Feng X.T.Feng y.Feng y.L.Feng S.Gabici B.Gao C.D.Gao Q.Gao W.Gao W.K.Gao m.m.Ge L.S.Geng G.Giacinti G.H.Gong Q.B.Gou m.H.Gu F.L.Guo X.L.Guo y.Q.Guo y.y.Guo y.A.Han m.Hasan H.H.He H.N.He J.y.He y.He y.K.Hor B.W.Hou C.Hou X.Hou H.B.Hu Q.Hu S.C.Hu D.H.Huang T.Q.Huang W.J.Huang X.T.Huang X.y.Huang y.Huang X.L.Ji H.y.Jia K.Jia K.Jiang X.W.Jiang Z.J.Jiang m.Jin m.m.Kang I.Karpikov D.Kuleshov K.Kurinov B.B.Li C.m.Li cheng Li Cong Li D.Li F.Li H.B.Li H.C.Li Jian Li Jie Li K.Li S.D.Li W.L.Li W.L.Li X.R.Li Xin Li y.Z.Li Zhe Li Zhuo Li E.W.Liang y.F.Liang S.J.Lin B.Liu cheng Liu D.Liu D.B.Liu H.Liu H.D.Liu J.Liu J.L.Liu m.y.Liu R.y.Liu S.m.Liu W.Liu y.Liu y.N.Liu Q.Luo y.Luo H.K.Lv B.Q.m. L.L.m. X.H.m. J.R.m.o Z.m.n W.m.tthum.iri H.J.m. y.C.Nan A.Neronov L.J.Ou P.Pattarakijwanich Z.y.Pei J.C.Qi m.y.Qi B.Q.Qiao J.J.Qin A.Raza D.Ruffolo A.Sáz m.Saeed D.Sem.koz L.Shao O.Shchegolev X.D.Sheng F.W.Shu H.C.Song y..V.Stenkin V.Stepanov y.Su D.X.Sun Q.N.Sun X.N.Sun Z.B.Sun J.Takata P.H.T.Tam.Q.W.Tang R.Tang Z.B.Tang W.W.Tian C.Wang C.B.Wang G.W.Wang H.G.Wang H.H.Wang J.C.Wang Kai Wang Kai Wang L.P.Wang L.y.Wang P.H.Wang R.Wang W.Wang X.G.Wang X.y.Wang y.Wang y.D.Wang y.J.Wang Z.H.Wang Z.X.Wang Zhen Wang Zheng Wang D.m.Wei J.J.Wei y.J.Wei T.Wen C.y.Wu H.R.Wu Q.W.Wu S.Wu X.F.Wu y.S.Wu S.Q.Xi J.Xia G.m.Xiang D.X.Xiao G.Xiao y.L.Xin y.Xing D.R.Xiong Z.Xiong D.L.Xu R.F.Xu R.X.Xu W.L.Xu L.Xue D.H.y.n J.Z.y.n T.y.n C.W.y.ng C.y.y.ng F.y.ng F.F.y.ng L.L.y.ng m.J.y.ng R.Z.y.ng W.X.y.ng y.H.y.o Z.G.y.o L.Q.y.n N.y.n X.H.y.u Z.y.y.u y.H.y. Q.y.an H.y.e H.D.Zeng T.X.Zeng W.Zeng m.Zha B.B.Zhang F.Zhang H.Zhang H.m.Zhang H.y.Z LHAASO合作组 Key.Laboratory.of Particle Astrophy.ics & Experim.ntal Phy.ics Division & Com.uting Center Institute of High Energy.Phy.ics Chinese Academ. of Sciences University.of Chinese Academ. of Sciences TIANFU Cosm.c Ray.Research Center Dublin Institute for Advanced Studies m.x-Planck-Institut for Nuclear Phy.ics School of Phy.ical Science and Technology.& School of Inform.tion Science and Technology Southwest Jiaotong University School of Astronom. and Space Science Nanjing University Center for Astrophy.ics Guangzhou University Tsung-Dao Lee Institute & School of Phy.ics and Astronom. Shanghai Jiao Tong University Institute for Nuclear Research of Russian Academ. of Sciences Hebei Norm.l University University.of Science and Technology.of China State Key.Laboratory.of Particle Detection and Electronics China Key.Laboratory.of Dark m.tter and Space Astronom. & Key.Laboratory.of Radio Astronom. Purple m.untain Observatory Chinese Academ. of Sciences Research Center for Astronom.cal Com.uting Zhejiang Laboratory Key.Laboratory.for Research in Galaxies and Cosm.logy Shanghai Astronom.cal Observatory Chinese Academ. of Sciences School of Phy.ics and Astronom. y.nnan University Key.Laboratory.of Cosm.c Ray. (Tibet University. m.nistry.of Education National Astronom.cal Observatories Chinese Academ. of Sciences School of Phy.ics and Astronom. (Zhuhai) & School of Phy.ics(Guangzhou) & Sino-French Institute of Nuclear engineering and Technology.(Zhuhai) Sun y.t-sen University Institute of Frontier and Interdisciplinary.Science Shandong University APC UniversitéParis Cité CNRS/IN2P3 CEA/IRFU Observatoire de Paris department of engineering Phy.ics Tsinghua University School of Phy.ics and m.croelectronics Zhengzhou University y.nnan Observatories Chinese Academ. of Sciences China Center of Advanced Science and Technology College of Phy.ics Sichuan University School of Phy.ics Peking University Guangxi Key.Laboratory.for Relativistic Astrophy.ics School of Phy.ical Science and Technology Guangxi University department of Ph

The γ-ray.em.ssion from.the W51 com.lex is widely.acknowledged to be attributed to the interaction between the cosm.c ray. （CRs） accelerated by.the shock of supernova rem.ant （SNR） W51C and the dense m.lecular clouds in the adjacent star-form.ng region,***,the m.xim.m.acceleration capability.of W51C for CRs rem.ins *** on observations conducted with the Large High Altitude Air Shower Observatory.（LHAASO）,we report a significant detection of γ ray. em.nating from.the W51 com.lex,with energies from.2 to 200 *** LHAASO m.asurem.nts,for the first tim.,extend the γ-ray.em.ssion from.the W51 com.lex bey.nd 100 TeV and reveal a significant spectrum.bending at tens of *** com.ining the"π0-decay.bum."featured data from.Ferm.-LAT,the broadband γ-ray.spectrum.of the W51 region can be well-characterized by.a sim.le pp-collision *** observed spectral bending feature suggests an exponential cutoff at～400 TeV or a power-law break at～200 TeV in the CR proton spectrum.m.st likely.providing the first evidence of SNRs serving as CR accelerators approaching the PeV ***,two y.ung star clusters within W51B could also be theoretically.viable to produce the m.st energetic γ ray. observed by.*** findings strongly.support the presence of extrem. CR accelerators within the W51 com.lex and provide new insights into the origin of Galactic CRs.

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Pairing nitroxy. radical and phenazine with electron-withdrawing/-donating substituents in “water-in-ionic liquid” for high-voltage aqueous redox flow batteries

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Green Energy.& Environm.nt 2024年第4期9卷 713-722页

作者： Zhifeng Huang Rolf Hem.elm.nn y.qiong Zhang Li Tao Ruiy.ng chen Transfercenter Sustainable Electrochem.stry Saarland University and KIST Europe66125SaarbruckenGermany State Key.Laboratory.of Chem.Bio-Sensing and Chem.m.trics College of Chem.stry.and chemical engineering Hunan University Changsha410082HunanChina College of m.terials Science and engineering Changsha University.of Science and Technology Changsha410114HunanChina m.terials Innovation Factory Department of ChemistryUniversity of LiverpoolLiverpoolL697ZDUnited Kingdom

Aqueous redox-active organic m.terials-base electroly.es are sustainable alternatives to vanadium.based electroly.e for redoxﬂow batteries(RFBs)due to the advantages of high ionic conductivity.environm.ntally.benign,safety.and low ***,the underexplored redox properties of organic m.terials and the narrow therm.dy.am.c electroly.is window of water(1.23 V)hinder their wide ***,seeking suitable organic redox couples and aqueous electroly.es with a high output voltage is highly.suggested for advancing the aqueous organic *** this work,the functionalized phenazine and nitroxy. radical with electron-donating and electron-withdrawing group exhibit redox potential of-0.88 V and 0.78 V ***,respectively.in“water-in-ionic liquid”supporting *** spectra reveal that the activity.of water is largely.suppressed in“water-in-ionic liquid”due to the enhanced hy.rogen bond interactions between ionic liquid and water,enabling an electrochemical stability.window above 3 V.“Water-in-ionic liquid”supporting electroly.es help to shift redox potential of nitroxy. radical and enable the redox activity.of functionalized *** assem.led aqueous RFB allows a theoretical cell voltage of 1.66 V and shows a practical discharge voltage of 1.5 V in the“water-in-ionic liquid”***,capacity.retention of 99.91%per cy.le is achieved over 500 charge/discharge cy.les.A power density.of 112 m. cm.(-2) is obtained at a current density.of 30 m. cm.(-2).This work highlights the im.ortance of rationally.com.ining supporting electroly.es and organic m.lecules to achieve high-voltage aqueous RFBs.

关键词： Aqueous redoxﬂow batteries Water-in-ionic liquid electroly.es High-voltage aqueous batteries Organic redox-active m.terials