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Enhanced growth rate of atmospheric particles from sulfuric acid 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2020, 20 (12) : 7359-7372
作者:  Stolzenburg, Dominik;  Simon, Mario;  Ranjithkumar, Ananth;  Kuerten, Andreas;  Lehtipalo, Katrianne;  Gordon, Hamish;  Ehrhart, Sebastian;  Finkenzeller, Henning;  Pichelstorfer, Lukas;  Nieminen, Tuomo;  He, Xu-Cheng;  Brilke, Sophia;  Xiao, Mao;  Amorim, Antonio;  Baalbaki, Rima;  Baccarini, Andrea;  Beck, Lisa;  Brakling, Steffen;  Murillo, Lucia Caudillo;  Chen, Dexian;  Chu, Biwu;  Dada, Lubna;  Dias, Antonio;  Dommen, Josef;  Duplissy, Jonathan;  El Haddad, Imad;  Fischer, Lukas;  Carracedo, Loic Gonzalez;  Heinritzi, Martin;  Kim, Changhyuk;  Koenig, Theodore K.;  Kong, Weimeng;  Lamkaddam, Houssni;  Lee, Chuan Ping;  Leiminger, Markus;  Li, Zijun;  Makhmutov, Vladimir;  Manninen, Hanna E.;  Marie, Guillaume;  Marten, Ruby;  Mueller, Tatjana;  Nie, Wei;  Partoll, Eva;  Petaja, Tuukka;  Pfeifer, Joschka;  Philippov, Maxim;  Rissanen, Matti P.;  Rorup, Birte;  Schobesberger, Siegfried;  Schuchmann, Simone;  Shen, Jiali;  Sipila, Mikko;  Steiner, Gerhard;  Stozhkov, Yuri;  Tauber, Christian;  Tham, Yee Jun;  Tome, Antonio;  Vazquez-Pufleau, Miguel;  Wagner, Andrea C.;  Wang, Mingyi;  Wang, Yonghong;  Weber, Stefan K.;  Wimmer, Daniela;  Wlasits, Peter J.;  Wu, Yusheng;  Ye, Qing;  Zauner-Wieczorek, Marcel;  Baltensperger, Urs;  Carslaw, Kenneth S.;  Curtius, Joachim;  Donahue, Neil M.;  Flagan, Richard C.;  Hansel, Armin;  Kulmala, Markku;  Lelieveld, Jos;  Volkamer, Rainer;  Kirkby, Jasper;  Winkler, Paul M.
收藏  |  浏览/下载:25/0  |  提交时间:2020/08/18
Direct links between hygroscopicity and mixing state of ambient aerosols: estimating particle hygroscopicity from their single-particle mass spectra 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2020, 20 (11) : 6273-6290
作者:  Wang, Xinning;  Ye, Xingnan;  Chen, Jian-Min;  Wang, Xiaofei;  Yang, Xin;  Fu, Tzung-May;  Zhu, Lei;  Liu, Chongxuan
收藏  |  浏览/下载:6/0  |  提交时间:2020/06/09
Dynamic spatial-temporal precipitation distribution models for short-duration rainstorms in Shenzhen, China based on machine learning 期刊论文
ATMOSPHERIC RESEARCH, 2020, 237
作者:  Liu, Yuan-Yuan;  Li, Lei;  Liu, Ye-Sen;  Chan, Pak Wai;  Zhang, Wen-Hai
收藏  |  浏览/下载:10/0  |  提交时间:2020/07/02
Short-duration rainstorm  Machine learning  Locally linear embedding method  Dynamic spatial-temporal distribution  Shenzhen  
Clonally expanded CD8 T cells patrol the cerebrospinal fluid in Alzheimer's disease 期刊论文
NATURE, 2020, 577 (7790) : 399-+
作者:  Gate, David;  Saligrama, Naresha;  Leventhal, Olivia;  Yang, Andrew C.;  Unger, Michael S.;  Middeldorp, Jinte;  Chen, Kelly;  Lehallier, Benoit;  Channappa, Divya;  De Los Santos, Mark B.;  McBride, Alisha;  Pluvinage, John;  Elahi, Fanny;  Tam, Grace Kyin-Ye;  Kim, Yongha;  Greicius, Michael;  Wagner, Anthony D.;  Aigner, Ludwig;  Galasko, Douglas R.;  Davis, Mark M.;  Wyss-Coray, Tony
收藏  |  浏览/下载:6/0  |  提交时间:2020/07/03

Alzheimer'  s disease is an incurable neurodegenerative disorder in which neuroinflammation has a critical function(1). However, little is known about the contribution of the adaptive immune response in Alzheimer'  s disease(2). Here, using integrated analyses of multiple cohorts, we identify peripheral and central adaptive immune changes in Alzheimer'  s disease. First, we performed mass cytometry of peripheral blood mononuclear cells and discovered an immune signature of Alzheimer'  s disease that consists of increased numbers of CD8(+) T effector memory CD45RA(+) (T-EMRA) cells. In a second cohort, we found that CD8(+) T-EMRA cells were negatively associated with cognition. Furthermore, single-cell RNA sequencing revealed that T cell receptor (TCR) signalling was enhanced in these cells. Notably, by using several strategies of single-cell TCR sequencing in a third cohort, we discovered clonally expanded CD8(+) T-EMRA cells in the cerebrospinal fluid of patients with Alzheimer'  s disease. Finally, we used machine learning, cloning and peptide screens to demonstrate the specificity of clonally expanded TCRs in the cerebrospinal fluid of patients with Alzheimer'  s disease to two separate Epstein-Barr virus antigens. These results reveal an adaptive immune response in the blood and cerebrospinal fluid in Alzheimer'  s disease and provide evidence of clonal, antigen-experienced T cells patrolling the intrathecal space of brains affected by age-related neurodegeneration.


  
Contributions of aerosol composition and sources to particulate optical properties in a southern coastal city of China 期刊论文
ATMOSPHERIC RESEARCH, 2020, 235
作者:  Tian, Jie;  Wang, Qiyuan;  Han, Yongming;  Ye, Jianhuai;  Wang, Ping;  Pongpiachan, Siwatt;  Ni, Haiyan;  Zhou, Yaqing;  Wang, Meng;  Zhao, Youzhi;  Cao, Junji
收藏  |  浏览/下载:11/0  |  提交时间:2020/07/02
PM2.5  Light extinction  Chemical composition  Source apportionment  
Structural analysis and tectonic evolution of the western domain of the Eastern Kunlun Range, northwest Tibet 期刊论文
GEOLOGICAL SOCIETY OF AMERICA BULLETIN, 2020, 132 (5-6) : 1291-1315
作者:  Wu, Chen;  Liu, Changfeng;  Fan, Suoya;  Zuza, Andrew, V;  Ding, Lin;  Liu, Wencan;  Ye, Baoying;  Yang, Shijie;  Zhou, Zhiguang
收藏  |  浏览/下载:4/0  |  提交时间:2020/07/02
Localization and delocalization of light in photonic moire lattices 期刊论文
NATURE, 2020, 577 (7788) : 42-+
作者:  Wang, Peng;  Zheng, Yuanlin;  Chen, Xianfeng;  Huang, Changming;  Kartashov, Yaroslav V.;  Torner, Lluis;  Konotop, Vladimir V.;  Ye, Fangwei
收藏  |  浏览/下载:12/0  |  提交时间:2020/07/03

Moire lattices consist of two superimposed identical periodic structures with a relative rotation angle. Moire lattices have several applications in everyday life, including artistic design, the textile industry, architecture, image processing, metrology and interferometry. For scientific studies, they have been produced using coupled graphene-hexagonal boron nitride monolayers(1,2), graphene-graphene layers(3,4) and graphene quasicrystals on a silicon carbide surface(5). The recent surge of interest in moire lattices arises from the possibility of exploring many salient physical phenomena in such systems  examples include commensurable-incommensurable transitions and topological defects(2), the emergence of insulating states owing to band flattening(3,6), unconventional superconductivity(4) controlled by the rotation angle(7,8), the quantum Hall effect(9), the realization of non-Abelian gauge potentials(10) and the appearance of quasicrystals at special rotation angles(11). A fundamental question that remains unexplored concerns the evolution of waves in the potentials defined by moire lattices. Here we experimentally create two-dimensional photonic moire lattices, which-unlike their material counterparts-have readily controllable parameters and symmetry, allowing us to explore transitions between structures with fundamentally different geometries (periodic, general aperiodic and quasicrystal). We observe localization of light in deterministic linear lattices that is based on flatband physics(6), in contrast to previous schemes based on light diffusion in optical quasicrystals(12), where disorder is required(13) for the onset of Anderson localization(14) (that is, wave localization in random media). Using commensurable and incommensurable moire patterns, we experimentally demonstrate the twodimensional localization-delocalization transition of light. Moire lattices may feature an almost arbitrary geometry that is consistent with the crystallographic symmetry groups of the sublattices, and therefore afford a powerful tool for controlling the properties of light patterns and exploring the physics of periodic-aperiodic phase transitions and two-dimensional wavepacket phenomena relevant to several areas of science, including optics, acoustics, condensed matter and atomic physics.


  
Engineering covalently bonded 2D layered materials by self-intercalation 期刊论文
NATURE, 2020, 581 (7807) : 171-+
作者:  Shang, Jian;  Ye, Gang;  Shi, Ke;  Wan, Yushun;  Luo, Chuming;  Aihara, Hideki;  Geng, Qibin;  Auerbach, Ashley;  Li, Fang
收藏  |  浏览/下载:11/0  |  提交时间:2020/07/03

Two-dimensional (2D) materials(1-5) offer a unique platform from which to explore the physics of topology and many-body phenomena. New properties can be generated by filling the van der Waals gap of 2D materials with intercalants(6,7)  however, post-growth intercalation has usually been limited to alkali metals(8-10). Here we show that the self-intercalation of native atoms(11,12) into bilayer transition metal dichalcogenides during growth generates a class of ultrathin, covalently bonded materials, which we name ic-2D. The stoichiometry of these materials is defined by periodic occupancy patterns of the octahedral vacancy sites in the van der Waals gap, and their properties can be tuned by varying the coverage and the spatial arrangement of the filled sites(7,13). By performing growth under high metal chemical potential(14,15) we can access a range of tantalum-intercalated TaS(Se)(y), including 25% Ta-intercalated Ta9S16, 33.3% Ta-intercalated Ta7S12, 50% Ta-intercalated Ta10S16, 66.7% Ta-intercalated Ta8Se12 (which forms a Kagome lattice) and 100% Ta-intercalated Ta9Se12. Ferromagnetic order was detected in some of these intercalated phases. We also demonstrate that self-intercalated V11S16, In11Se16 and FexTey can be grown under metal-rich conditions. Our work establishes self-intercalation as an approach through which to grow a new class of 2D materials with stoichiometry- or composition-dependent properties.


  
High-resolution vertical distribution and sources of HONO and NO2 in the nocturnal boundary layer in urban Beijing, China 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2020, 20 (8) : 5071-5092
作者:  Meng, Fanhao;  Qin, Min;  Tang, Ke;  Duan, Jun;  Fang, Wu;  Liang, Shuaixi;  Ye, Kaidi;  Xie, Pinhua;  Sun, Yele;  Xie, Conghui;  Ye, Chunxiang;  Fu, Pingqing;  Liu, Jianguo;  Liu, Wenqing
收藏  |  浏览/下载:13/0  |  提交时间:2020/05/13
Heterogeneous N2O5 reactions on atmospheric aerosols at four Chinese sites: improving model representation of uptake parameters 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2020, 20 (7) : 4367-4378
作者:  Yu, Chuan;  Wang, Zhe;  Xia, Men;  Fu, Xiao;  Wang, Weihao;  Tham, Yee Jun;  Chen, Tianshu;  Zheng, Penggang;  Li, Hongyong;  Shan, Ye;  Wang, Xinfeng;  Xue, Likun;  Zhou, Yue;  Yue, Dingli;  Ou, Yubo;  Gao, Jian;  Lu, Keding;  Brown, Steven S.;  Zhang, Yuanhang;  Wang, Tao
收藏  |  浏览/下载:14/0  |  提交时间:2020/07/02