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A transition to sustainable ocean governance 期刊论文
NATURE COMMUNICATIONS, 2020, 11 (1)
作者:  Rudolph, Tanya Brodie;  Ruckelshaus, Mary;  Swilling, Mark;  Allison, Edward H.;  Osterblom, Henrik;  Gelcich, Stefan;  Mbatha, Philile
收藏  |  浏览/下载:15/0  |  提交时间:2020/07/21
Effective uptake of submicrometre plastics by crop plants via a crack-entry mode 期刊论文
NATURE SUSTAINABILITY, 2020
作者:  Li, Lianzhen;  Luo, Yongming;  Li, Ruijie;  Zhou, Qian;  Peijnenburg, Willie J. G. M.;  Yin, Na;  Yang, Jie;  Tu, Chen;  Zhang, Yunchao
收藏  |  浏览/下载:20/0  |  提交时间:2020/07/21
Multiple drivers of the North Atlantic warming hole 期刊论文
NATURE CLIMATE CHANGE, 2020, 10 (7) : 667-+
作者:  Keil, Paul;  Mauritsen, Thorsten;  Jungclaus, Johann;  Hedemann, Christopher;  Olonscheck, Dirk;  Ghosh, Rohit
收藏  |  浏览/下载:8/0  |  提交时间:2020/07/06
A seawater throttle on H-2 production in Precambrian serpentinizing systems 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (26) : 14756-14763
作者:  Tutolo, Benjamin M.;  Seyfried, William E., Jr.;  Tosca, Nicholas J.
收藏  |  浏览/下载:9/0  |  提交时间:2020/06/22
serpentinization  Precambrian  atmosphere redox state  origins of life  
Understanding rate effects in injection-induced earthquakes 期刊论文
NATURE COMMUNICATIONS, 2020, 11 (1)
作者:  Alghannam, Maryam;  Juanes, Ruben
收藏  |  浏览/下载:6/0  |  提交时间:2020/06/22
An encrusting kleptoparasite-host interaction from the early Cambrian 期刊论文
NATURE COMMUNICATIONS, 2020, 11 (1)
作者:  Zhang, Zhifei;  Strotz, Luke C.;  Topper, Timothy P.;  Chen, Feiyang;  Chen, Yanlong;  Liang, Yue;  Zhang, Zhiliang;  Skovsted, Christian B.;  Brock, Glenn A.
收藏  |  浏览/下载:9/0  |  提交时间:2020/06/09
Archimedean lattices emerge in template-directed eutectic solidification 期刊论文
NATURE, 2020, 577 (7790) : 355-+
作者:  Subbaraman, Nidhi;  Viglione, Giuliana
收藏  |  浏览/下载:9/0  |  提交时间:2020/07/03

Template-directed assembly has been shown to yield a broad diversity of highly ordered mesostructures(1),(2), which in a few cases exhibit symmetries not present in the native material(3-5). However, this technique has not yet been applied to eutectic materials, which underpin many modern technologies ranging from high-performance turbine blades to solder alloys. Here we use directional solidification of a simple AgCl-KCl lamellar eutectic material within a pillar template to show that interactions of the material with the template lead to the emergence of a set of microstructures that are distinct from the eutectic'  s native lamellar structure and the template'  s hexagonal lattice structure. By modifying the solidification rate of this material-template system, trefoil, quatrefoil, cinquefoil and hexafoil mesostructures with submicrometre-size features are realized. Phase-field simulations suggest that these mesostructures appear owing to constraints imposed on diffusion by the hexagonally arrayed pillar template. We note that the trefoil and hexafoil patterns resemble Archimedean honeycomb and square-hexagonal-dodecagonal lattices(6), respectively. We also find that by using monolayer colloidal crystals as templates, a variety of eutectic mesostructures including trefoil and hexafoil are observed, the former resembling the Archimedean kagome lattice. Potential emerging applications for the structures provided by templated eutectics include non-reciprocal metasurfaces(7), magnetic spin-ice systems(8,9), and micro- and nano-lattices with enhanced mechanical properties(10,11).


  
The rhizomatic expansion of commoning through social movements 期刊论文
ECOLOGICAL ECONOMICS, 2020, 171
作者:  Varvarousis, Angelos
收藏  |  浏览/下载:0/0  |  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.


  
Climate Dipoles as Continental Drivers of Plant and Animal Populations 期刊论文
TRENDS IN ECOLOGY & EVOLUTION, 2020, 35 (5) : 440-453
作者:  Zuckerberg, Benjamin;  Strong, Courtenay;  LaMontagne, Jalene M.;  St George, Scott;  Betancourt, Julio L.;  Koenig, Walter D.
收藏  |  浏览/下载:12/0  |  提交时间:2020/07/02