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Overview of KAGRA : Data transfer and management

Progress of Theoretical and Experimental Physics 2023年第10期2023卷

作者： Akutsu, T Ando, M Arai, K Arai, Y Araki, S Araya, A Aritomi, N Asada, H Aso, Y Bae, S Bae, Y Baiotti, L Bajpai, R Barton, M A Cannon, K Cao, Z Capocasa, E Chan, M Chen, C Chen, K Chen, Y Chiang, C-Y Chu, H Chu, Y-K Eguchi, S Enomoto, Y Flaminio, R Fujii, Y Fujikawa, Y Fukunaga, M Fukushima, M Gao, D Ge, G Ha, S Hagiwara, A Haino, S Han, W-B Hasegawa, K Hattori, K Hayakawa, H Hayama, K Himemoto, Y Hiranuma, Y Hirata, N Hirose, E Hong, Z Hsieh, B Huang, G-Z Huang, H-Y Huang, P Huang, Y-C Huang, Y Hui, D C Y Ide, S Ikenoue, B Imam, S Inayoshi, K Inoue, Y Ioka, K Ito, K Itoh, Y Izumi, K Jeon, C Jin, H-B Jung, K Jung, P Kaihotsu, K Kajita, T Kakizaki, M Kamiizumi, M Kanda, N Kang, G Kawaguchi, K Kawai, N Kawasaki, T Kim, C Kim, J Kim, J C Kim, W S Kim, Y-M Kimura, N Kita, N Kitazawa, H Kobayashi, Y Kojima, Y Kokeyama, K Komori, K Kong, A K H Kotake, K Kozakai, C Kozu, R Kumar, R Kume, J Kuo, C Kuo, H-S Kuromiya, Y Kuroyanagi, S Kusayanagi, K Kwak, K Lee, H K Lee, H W Lee, R Leonardi, M Li, K L Lin, L C-C Lin, C-Y Lin, F-K Lin, F-L Lin, H L Liu, G C Luo, L-W Majorana, E Marchio, M Michimura, Y Mio, N Miyakawa, O Miyamoto, A Miyazaki, Y Miyo, K Miyoki, S Mori, Y Morisaki, S Moriwaki, Y Nagano, K Nagano, S Nakamura, K Nakano, H Nakano, M Nakashima, R Nakayama, Y Narikawa, T Naticchioni, L Negishi, R Quynh, L Nguyen Ni, W-T Nishizawa, A Nozaki, S Obuchi, Y Ogaki, W Oh, J J Oh, K Oh, S H Ohashi, M Ohashi, T Ohishi, N Ohkawa, M Ohta, H Okutani, Y Okutomi, K Oohara, K Ooi, C Oshino, S Otabe, S Pan, K Pang, H Parisi, A Park, J Arellano, F E Peña Pinto, I Sago, N Saito, S Saito, Y Sakai, K Sakai, Y Sakuno, Y Sasaki, Y Sato, S Sato, T Sawada, T Sekiguchi, T Sekiguchi, Y Shao, L Shibagaki, S Shimizu, R Shimoda, T Shimode, K Shinkai, H Shishido, T Shoda, A Somiya, K Son, E J Sotani, H Sugimoto, R Suresh, J Suzuki, T Tagoshi, H Takahashi, H Takahashi, R Takamori, A Takano, S Takeda, H Takeda, M Tanaka, H Tanaka, K Tanaka, T Tanioka, S Martin, E N Tapia San Telada, S Tomaru, T Tomigami, Y Tomura, T Travasso, F Trozzo, L Tsang, T Ts Gravitational Wave Science Project National Astronomical Observatory of Japan (NAOJ) 2-21-1 Osawa Mitaka City Tokyo 181-8588 Japan Advanced Technology Center National Astronomical Observatory of Japan (NAOJ) 2-21-1 Osawa Mitaka City Tokyo 181-8588 Japan Department of Physics The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan Research Center for the Early Universe (RESCEU) The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan Institute for Cosmic Ray Research (ICRR) KAGRA Observatory The University of Tokyo 5-1-5 Kashiwa-no-Ha Kashiwa City Chiba 277-8582 Japan Accelerator Laboratory High Energy Accelerator Research Organization (KEK) 1-1 Oho Tsukuba City Ibaraki 305-0801 Japan Earthquake Research Institute The University of Tokyo 1-1-1 Yayoi Bunkyo-ku Tokyo 113-0032 Japan Department of Mathematics and Physics Hirosaki University 3 Bunkyo-cho Hirosaki City Aomori 036-8561 Japan Kamioka Branch National Astronomical Observatory of Japan (NAOJ) 238 Higashi-Mozumi Kamioka-cho Hida City Gifu 506-1205 Japan The Graduate University for Advanced Studies (SOKENDAI) 2-21-1 Osawa Mitaka City Tokyo 181-8588 Japan Korea Institute of Science and Technology Information (KISTI) 245 Daehak-ro Yuseong-gu Daejeon 34141 Korea National Institute for Mathematical Sciences 70 Yuseong-daero 1689 Beon-gil Yuseong-gu Daejeon 34047 Korea International College Osaka University 1-1 Machikaneyama-cho Toyonaka City Osaka 560-0043 Japan School of High Energy Accelerator Science The Graduate University for Advanced Studies (SOKENDAI) 1-1 Oho Tsukuba City Ibaraki 305-0801 Japan Department of Astronomy Beijing Normal University No. 19 Xinjiekou Street Beijing 100875 China Department of Applied Physics Fukuoka University 8-19-1 Nanakuma Jonan Fukuoka City Fukuoka 814-0180 Japan Department of Physics Tamkang University No. 151 Yingzhuan Rd. Danshui Dist. New Taipei City 25137 Taiwan Department of Physics and Institute of Astronomy Nation

KAGRA is a newly built gravitational wave observatory, a laser interferometer with a 3 km arm length, located in Kamioka, Gifu prefecture, Japan. In this article, we describe the KAGRA data management system, i.e., recording of data, transfer from the KAGRA experiment site to computing resources, as well as data distribution to tier sites, including international sites in Taiwan and Korea. The amount of KAGRA data exceeded 1.0 PiB and increased by about 1.5 TB per day during operation in 2020. Our system has succeeded in data management, and has achieved performance that can withstand observations after 2023, that is, a transfer rate of 20 MB s-1or more and file storage of sufficient capacity for petabyte class. We also discuss the sharing of data between the global gravitational-wave detector network with other experiments, namely LIGO and Virgo. The latency, which consists of calculation of calibrated strain data and transfer time within the global network, is very important from the view of multi-messenger astronomy using gravitational waves. Real-time calbrated data delivered from the KAGRA detector site and other detectors to our computing system arrive with about 4–15 seconds of latency. These latencies are sufficiently short compared to the time taken for gravitational wave event search computations. We also established a high-latency exchange of offline calibrated data that was aggregated with a better accuracy compared with real-time data.

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Author Correction: Development of a functional salivary gland tissue chip with potential for high-content drug screening

Communications biology

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Communications biology 2021年第1期4卷 533页

作者： Yuanhui Song Hitoshi Uchida Azmeer Sharipol Lindsay Piraino Jared A Mereness Matthew H Ingalls Jonathan Rebhahn Shawn D Newlands Lisa A DeLouise Catherine E Ovitt Danielle S W Benoit Department of Biomedical Engineering University of Rochester Rochester NY USA. Center for Oral Biology University of Rochester Medical Center Rochester NY USA. Department of Biomedical Genetics University of Rochester Medical Center Rochester NY USA. Department of Dermatology University of Rochester Medical Center Rochester NY USA. Department of Environmental Medicine University of Rochester Medical Center Rochester NY USA. David H. Smith Center for Vaccine Biology and Immunology University of Rochester Medical Center Rochester NY USA. Department of Otolaryngology University of Rochester Medical Center Rochester NY USA. Wilmot Cancer Institute University of Rochester Medical Center Rochester NY USA. Department of Neuroscience University of Rochester Medical Center Rochester NY USA. Materials Science Program University of Rochester Rochester NY USA. Department of Biomedical Engineering University of Rochester Rochester NY USA. benoit@bme.rochester.edu. Center for Oral Biology University of Rochester Medical Center Rochester NY USA. benoit@bme.rochester.edu. Department of Biomedical Genetics University of Rochester Medical Center Rochester NY USA. benoit@bme.rochester.edu. Department of Environmental Medicine University of Rochester Medical Center Rochester NY USA. benoit@bme.rochester.edu. Wilmot Cancer Institute University of Rochester Medical Center Rochester NY USA. benoit@bme.rochester.edu. Materials Science Program University of Rochester Rochester NY USA. benoit@bme.rochester.edu. Department of Chemical Engineering University of Rochester Rochester NY USA. benoit@bme.rochester.edu. Center for Musculoskeletal Research University of Rochester Medical Center Rochester NY USA. benoit@bme.rochester.edu.

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Synergistic Catalysis by Brønsted Acid/Carbodicarbene Mimicking Frustrated Lewis Pair-Like Reactivity

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Angewandte Chemie 2021年第36期133卷

作者： Yi-Chen Chan Yuna Bai Dr. Wen-Ching Chen Prof. Hsing-Yin Chen Chen-Yu Li Dr. Ying-Yann Wu Dr. Mei-Chun Tseng Glenn P. A. Yap Prof. Lili Zhao Prof. Hsuan-Ying Chen Prof. Tiow-Gan Ong Institute of Chemistry Academia Sinica Taipei Taiwan R.O.C. Department of Applied Chemistry National Yang Ming Chiao Tung University Hsinchu Taiwan R.O.C. Taiwan International Graduate Program (TIGP) Sustainable Chemical Science and Technology (SCST) Academia Sinica Taipei Taiwan R.O.C. Institute of Advanced Synthesis School of Chemistry and Molecular Engineering Nanjing Tech University Nanjing China Department of Medicinal and Applied Chemistry Drug Development and Value Creation Research Center Kaohsiung Medical University Kaohsiung 80708 Taiwan R.O.C. The Department of Chemistry and Biochemistry University of Delaware Newark DE USA Department of Medicinal Research Kaohsiung Medical University Hospital Kaohsiung 80708 Taiwan R.O.C. Department of Chemistry National (Taiwan) University Taipei Taiwan R.O.C.

Carbodicarbene (CDC), unique carbenic entities bearing two lone pairs of electrons are well-known for their strong Lewis basicity. We demonstrate herein, upon introducing a weak Brønsted acid benzyl alcohol (BnOH) as a co-modulator, CDC is remolded into a Frustrated Lewis Pair (FLP)-like reactivity. DFT calculation and experimental evidence show BnOH loosely interacting with the binding pocket of CDC via H-bonding and π-π stacking. Four distinct reactions in nature were deployed to demonstrate the viability of proof-of-concept as synergistic FLP/Modulator (CDC/BnOH), demonstrating enhanced catalytic reactivity in cyclotrimerization of isocyanate, polymerization process for L -lactide (LA), methyl methacrylate (MMA) and dehydrosilylation of alcohols. Importantly, the catalytic reactivity of carbodicarbene is uniquely distinct from conventional NHC which relies on only single chemical feature of nucleophilicity. This finding also provides a new spin in diversifying FLP reactivity with co-modulator or co-catalyst.

关键词： benzyl alcohol BnOH carbodicarbene frustrated Lewis pair

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Bacteria‐Resistant Single Chain Cyclized/Knotted Polymer Coatings

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Angewandte Chemie 2019年第31期131卷

作者： Qian Xu Sigen A Manon Venet Yongsheng Gao Dezhong Zhou Wei Wang Ming Zeng Chiara Rotella Xiaolin Li Xi Wang Jing Lyu Brian J. Rodriguez Wenxin Wang Charles Institute of Dermatology School of Medicine University College Dublin Ireland School of Chemical Engineering and Technology (SCET) Xi'an Jiaotong University Xi'an Shaanxi China School of Materials Science and Engineering Tianjin Key Laboratory of Composite and Functional Materials Tianjin University Tianjin 300350 China Conway Institute of Biomolecular and Biomedical Research University College Dublin Ireland MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and Engineering Zhejiang University 310027 Hangzhou China

Further to conventional linear, branched, crosslinked, and dendritic polymers, single chain cyclized/knotted polymers (SCKPs) have emerged as a new class of polymer structure with unique properties. Herein, the development of bacteria‐resistant SCKPs is reported and the effect of this structure on the resistance of polymer materials to bacteria is investigated. Four SCKPs were synthesized by reversible addition fragmentation chain transfer (RAFT) homopolymerization of multivinyl monomers (MVMs) and then crosslinked by UV light to form SCKP films. Regardless of MVM type used, the resulting SCKP films showed much higher resistance to bacteria, and up to 75 % less bacterial attachment and biofilm formation, in comparison with the corresponding non‐SCKP films. This is due to the altered surface morphology and hydrophobicity of the SCKP films. These results highlight the critical role of the SCKP structure in enhancing the resistance of polymeric materials to bacteria.

关键词： Antimikrobielle Oberflächen Beschichtungen Cyclisierte/verknotete Einzelkettenpolymere Multivinyl-Monomere RAFT-Polymerisation

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Structural Degradations in the Bulk of Cathode Particles for Li-ion Batteries

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Microscopy and Microanalysis 2018年第S1期24卷 1504-1505页

作者： Hanlei Zhang Fredrick Omenya M. Stanley Whittingham Chongmin Wang Guangwen Zhou Materials Science and Engineering Program & Department of Mechanical Engineering State University of New York Binghamton New York13902 United States NorthEast Center for Chemical Energy Storage State University of New York Binghamton New York13902 United States Environmental Molecular Sciences Laboratory Pacific Northwest National Laboratory Richland Washington99352 United States

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Predictable and precise template-free CRISPR editing of pathogenic variants (vol 563, pg 646, 2018)

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NATURE 2019年第7746期567卷 E1-E2页

作者： Shen, Max W. Arbab, Mandana Hsu, Jonathan Y. Worstell, Daniel Culbertson, Sannie J. Krabbe, Olga Cassa, Christopher A. Liu, David R. Gifford, David K. Sherwood, Richard I. Computational and Systems Biology Program Massachusetts Institute of Technology Cambridge USA Computer Science and Artificial Intelligence Laboratory Massachusetts Institute of Technology Cambridge USA Merkin Institute of Transformative Technologies in Healthcare Broad Institute of Harvard and MIT Cambridge USA Department of Chemistry and Chemical Biology Harvard University Cambridge USA Howard Hughes Medical Institute Harvard University Cambridge USA Department of Biological Engineering Massachusetts Institute of Technology Cambridge USA Molecular Pathology Unit Center for Cancer Research and Center for Computational and Integrative Biology Massachusetts General Hospital Charlestown USA Division of Genetics Department of Medicine Brigham and Women’s Hospital and Harvard Medical School Boston USA Hubrecht Institute for Developmental Biology and Stem Cell Research Royal Netherlands Academy of Arts and Sciences (KNAW) Utrecht The Netherlands Broad Institute of MIT and Harvard Cambridge USA Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology Cambridge USA

In this Article, a data processing error affected Fig. 3e and Extended Data Table 2; these errors have been corrected online.

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GWTC-3: Compact Binary Coalescences Observed by LIGO and Virgo during the Second Part of the Third Observing Run

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Physical Review X 2023年第4期13卷 041039-041039页

作者： R. Abbott T. D. Abbott F. Acernese K. Ackley C. Adams N. Adhikari R. X. Adhikari V. B. Adya C. Affeldt D. Agarwal M. Agathos K. Agatsuma N. Aggarwal O. D. Aguiar L. Aiello A. Ain P. Ajith S. Akcay T. Akutsu S. Albanesi A. Allocca P. A. Altin A. Amato C. Anand S. Anand A. Ananyeva S. B. Anderson W. G. Anderson M. Ando T. Andrade N. Andres T. Andrić S. V. Angelova S. Ansoldi J. M. Antelis S. Antier S. Appert Koji Arai Koya Arai Y. Arai S. Araki A. Araya M. C. Araya J. S. Areeda M. Arène N. Aritomi N. Arnaud M. Arogeti S. M. Aronson K. G. Arun H. Asada Y. Asali G. Ashton Y. Aso M. Assiduo S. M. Aston P. Astone F. Aubin C. Austin S. Babak F. Badaracco M. K. M. Bader C. Badger S. Bae Y. Bae A. M. Baer S. Bagnasco Y. Bai L. Baiotti J. Baird R. Bajpai M. Ball G. Ballardin S. W. Ballmer A. Balsamo G. Baltus S. Banagiri D. Bankar J. C. Barayoga C. Barbieri B. C. Barish D. Barker P. Barneo F. Barone B. Barr L. Barsotti M. Barsuglia D. Barta J. Bartlett M. A. Barton I. Bartos R. Bassiri A. Basti M. Bawaj J. C. Bayley A. C. Baylor M. Bazzan B. Bécsy V. M. Bedakihale M. Bejger I. Belahcene V. Benedetto D. Beniwal T. F. Bennett J. D. Bentley M. BenYaala F. Bergamin B. K. Berger S. Bernuzzi C. P. L. Berry D. Bersanetti A. Bertolini J. Betzwieser D. Beveridge R. Bhandare U. Bhardwaj D. Bhattacharjee S. Bhaumik I. A. Bilenko G. Billingsley S. Bini R. Birney O. Birnholtz S. Biscans M. Bischi S. Biscoveanu A. Bisht B. Biswas M. Bitossi M.-A. Bizouard J. K. Blackburn C. D. Blair D. G. Blair R. M. Blair F. Bobba N. Bode M. Boer G. Bogaert M. Boldrini L. D. Bonavena F. Bondu E. Bonilla R. Bonnand P. Booker B. A. Boom R. Bork V. Boschi N. Bose S. Bose V. Bossilkov V. Boudart Y. Bouffanais A. Bozzi C. Bradaschia P. R. Brady A. Bramley A. Branch M. Branchesi J. Brandt J. E. Brau M. Breschi T. Briant J. H. Briggs A. Brillet M. Brinkmann P. Brockill A. F. Brooks J. Brooks D. D. Brown S. Brunett G. Bruno R. Bruntz J. Bryant T. Bulik H. J. Bulten A. Buonanno R. Buscicchio D. Buskulic C. Buy R. L. Byer G. S. Cabourn Davies L. Cadonati G. Cagn LIGO Laboratory California Institute of Technology Pasadena California 91125 USA Louisiana State University Baton Rouge Louisiana 70803 USA Dipartimento di Farmacia Università di Salerno I-84084 Fisciano Salerno Italy INFN Sezione di Napoli Complesso Universitario di Monte S. Angelo I-80126 Napoli Italy OzGrav School of Physics & Astronomy Monash University Clayton 3800 Victoria Australia LIGO Livingston Observatory Livingston Louisiana 70754 USA University of Wisconsin-Milwaukee Milwaukee Wisconsin 53201 USA OzGrav Australian National University Canberra Australian Capital Territory 0200 Australia Max Planck Institute for Gravitational Physics (Albert Einstein Institute) D-30167 Hannover Germany Leibniz Universität Hannover D-30167 Hannover Germany Inter-University Centre for Astronomy and Astrophysics Pune 411007 India University of Cambridge Cambridge CB2 1TN United Kingdom Theoretisch-Physikalisches Institut Friedrich-Schiller-Universität Jena D-07743 Jena Germany University of Birmingham Birmingham B15 2TT United Kingdom Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA) Northwestern University Evanston Illinois 60208 USA Instituto Nacional de Pesquisas Espaciais 12227-010 São José dos Campos São Paulo Brazil Gravity Exploration Institute Cardiff University Cardiff CF24 3AA United Kingdom INFN Sezione di Pisa I-56127 Pisa Italy International Centre for Theoretical Sciences Tata Institute of Fundamental Research Bengaluru 560089 India University College Dublin Dublin 4 Ireland Gravitational Wave Science Project National Astronomical Observatory of Japan (NAOJ) Mitaka City Tokyo 181-8588 Japan Advanced Technology Center National Astronomical Observatory of Japan (NAOJ) Mitaka City Tokyo 181-8588 Japan INFN Sezione di Torino I-10125 Torino Italy Università di Napoli “Federico II” Complesso Universitario di Monte S. Angelo I-80126 Napoli Italy Université de Lyon Université Claude Bernard Lyon 1 CNRS Institut L

The third Gravitational-Wave Transient Catalog (GWTC-3) describes signals detected with Advanced LIGO and Advanced Virgo up to the end of their third observing run. Updating the previous GWTC-2.1, we present candidate gravitational waves from compact binary coalescences during the second half of the third observing run (O3b) between 1 November 2019, 15∶00 Coordinated Universal Time (UTC) and 27 March 2020, 17∶00 UTC. There are 35 compact binary coalescence candidates identified by at least one of our search algorithms with a probability of astrophysical origin pastro>0.5. Of these, 18 were previously reported as low-latency public alerts, and 17 are reported here for the first time. Based upon estimates for the component masses, our O3b candidates with pastro>0.5 are consistent with gravitational-wave signals from binary black holes or neutron-star–black-hole binaries, and we identify none from binary neutron stars. However, from the gravitational-wave data alone, we are not able to measure matter effects that distinguish whether the binary components are neutron stars or black holes. The range of inferred component masses is similar to that found with previous catalogs, but the O3b candidates include the first confident observations of neutron-star–black-hole binaries. Including the 35 candidates from O3b in addition to those from GWTC-2.1, GWTC-3 contains 90 candidates found by our analysis with pastro>0.5 across the first three observing runs. These observations of compact binary coalescences present an unprecedented view of the properties of black holes and neutron stars.

关键词： Gravitational waves

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Reconfigurable mid-infrared hyperbolic metasurfaces using phase-change materials

arXiv

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arXiv 2018年

作者： Folland, T.G. Fali, A. White, S.T. Matson, J.R. Liu, S. Aghamiri, N.A. Edgar, J.H. Haglund, R.F. Abate, Y. Caldwell, J.D. Department of Mechanical Engineering Vanderbilt University NashvilleTN37212 United States Department of Physics and Astronomy University of Georgia AthensGA30602-2451 United States Department of Physics and Astronomy Vanderbilt University NashvilleTN37235 United States Interdisciplinary Materials Science Program Vanderbilt University NashvilleTN37212 Department of Chemical Engineering Kansas State University ManhattanKS66506 United States

Metasurfaces offer the potential to control light propagation at the nanoscale for applications in both free-space and surface-confined geometries1-3. Existing metasurfaces frequently utilize metallic polaritonic4 elements with high absorption losses5, and/or fixed geometrical designs that serve a single function. Here we overcome these limitations by demonstrating a reconfigurable hyperbolic6 metasurface comprising of a heterostructure of isotopically enriched hexagonal boron nitride (hBN)7-10 in direct contact with the phase-change material (PCM) vanadium dioxide (VO2)11-14. Spatially localized metallic and dielectric domains in VO2 change the wavelength of the hyperbolic phonon polaritons (HPhPs) supported in hBN by a factor 1.6 at 1450cm-1. This induces in-plane launching, refraction and reflection of HPhPs in the hBN, proving reconfigurable control of in-plane HPhP propagation at the nanoscale15. These results exemplify a generalizable framework based on combining hyperbolic media and PCMs in order to design optical functionalities such as resonant cavities, beam steering, waveguiding and focusing with nanometric control. Copyright © 2018, The Authors. All rights reserved.

关键词： III-V semiconductors

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Toward the integration of speciation research

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Evolutionary Journal of the Linnean Society 2024年第1期3卷

作者： Stankowski, Sean Cutter, Asher D Satokangas, Ina Lerch, Brian A Rolland, Jonathan Smadja, Carole M Segami Marzal, J Carolina Cooney, Christopher R Feulner, Philine G D Domingos, Fabricius Maia Chaves Bicalho North, Henry L Yamaguchi, Ryo Butlin, Roger K Wolf, Jochen B W Coughlan, Jenn Heidbreder, Patrick Hernández-Gutiérrez, Rebeca Barnard-Kubow, Karen B Peede, David Rancilhac, Loïs Salvador, Rodrigo Brincalepe Thompson, Ken A Stacy, Elizabeth A Moyle, Leonie C Garlovsky, Martin D Maulana, Arif Kantelinen, Annina Cacho, N Ivalú Schneemann, Hilde Domínguez, Marisol Dopman, Erik B Lohse, Konrad Rometsch, Sina J Comeault, Aaron A Merrill, Richard M Scordato, Elizabeth S C Singhal, Sonal Pärssinen, Varpu Lackey, Alycia C R Kumar, Sanghamitra Meier, Joana I Barton, Nicholas Fraïsse, Christelle Ravinet, Mark Kulmuni, Jonna Institute of Science and Technology Austria (ISTA) Klosterneuburg Austria Department of Ecology and Evolution University of Sussex Brighton United Kingdom Ecology & Evolutionary Biology University of Toronto Toronto Canada Organismal and Evolutionary Biology Research Programme University of Helsinki Helsinki Finland Department of Biology University of North Carolina at Chapel Hill Chapel Hill NC United States Centre de Recherche sur la Biodiversité et l’Environnement (CRBE) Université de Toulouse CNRS IRD Toulouse INP Université Toulouse 3 – Paul Sabatier (UT3) Toulouse France Institut des Sciences de l’Evolution de Montpellier ISEM Univ. Montpellier CNRS IRD Montpellier France Department of Biology Duke University Durham NC United States Ecology and Evolutionary Biology School of Biosciences University of Sheffield Sheffield United Kingdom Department of Fish Ecology and Evolution Centre of Ecology Evolution and Biogeochemistry EAWAG Swiss Federal Institute of Aquatic Science and Technology Kastanienbaum Switzerland Division of Aquatic Ecology and Evolution Institute of Ecology and Evolution University of Bern Bern Switzerland Departamento de Zoologia Universidade Federal do Paraná Curitiba PR Brazil Department of Zoology University of Cambridge Cambridge United Kingdom Department of Advanced Transdisciplinary Sciences Hokkaido University Sapporo Japan Department of Zoology & Biodiversity Research Centre University of British Columbia Vancouver Canada Department of Marine Sciences University of Gothenburg Gothenburg Sweden Division of Evolutionary Biology LMU Munich Munich Germany Department of Ecology & Evolutionary Biology Yale University New Haven CT United States Department of Evolution Ecology and Organismal Biology University of California Riverside Riverside CA United States Department of Biology James Madison University Harrisonburg VA United States Department of Ecology Evolution and Organismal Biology Brown University Provi

Speciation research—the scientific field focused on understanding the origin and diversity of species—has a long and complex history. While relevant to one another, the specific goals and activities of speciation researchers are highly diverse, and scattered across a collection of different perspectives. Thus, our understanding of speciation will benefit from efforts to bridge scientific findings and the diverse people who do the work. In this paper, we outline two ways of integrating speciation research: (i) scientific integration, through the bringing together of ideas, data, and approaches; and (ii) social integration, by creating ways for a diversity of researchers to participate in the scientific process. We then discuss five challenges to integration: (i) the multidisciplinary nature of speciation research, (ii) the complex language of speciation; (iii) a bias toward certain study systems; (iv) the challenges of working across scales; and (v) inconsistent measures and reporting standards. We provide practical steps that individuals and groups can take to help overcome these challenges, and argue that integration is a team effort in which we all have a role to play.

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Ultramicroporous Building Units as a Path to Bi‐microporous Metal–Organic Frameworks with High Acetylene Storage and Separation Performance

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Angewandte Chemie 2019年第38期131卷

作者： Yong‐Peng Li Ying Wang Ying‐Ying Xue Hai‐Peng Li Quan‐Guo Zhai Shu‐Ni Li Yu‐Cheng Jiang Man‐Cheng Hu Xianhui Bu Key Laboratory of Macromolecular Science of Shaanxi Province Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education School of Chemistry & Chemical Engineering Shaanxi Normal University Xi'an Shaanxi 710062 China Department of Chemistry and Biochemistry California State University Long Beach California 90840 USA

A strategy called ultramicroporous building unit (UBU) is introduced. It allows the creation of hierarchical bi‐porous features that work in tandem to enhance gas uptake capacity and separation. Smaller pores from UBUs promote selectivity, while larger inter‐UBU packing pores increase uptake capacity. The effectiveness of this UBU strategy is shown with a cobalt MOF (denoted SNNU‐45) in which octahedral cages with 4.5 Å pore size serve as UBUs. The C 2 H 2 uptake capacity at 1 atm reaches 193.0 cm 3 g −1 (8.6 mmol g −1 ) at 273 K and 134.0 cm 3 g −1 (6.0 mmol g −1 ) at 298 K. Such high uptake capacity is accompanied by a high C 2 H 2 /CO 2 selectivity of up to 8.5 at 298 K. Dynamic breakthrough studies at room temperature and 1 atm show a C 2 H 2 /CO 2 breakthrough time up to 79 min g −1 , among top‐performing MOFs. Grand canonical Monte Carlo simulations agree that ultrahigh C 2 H 2 /CO 2 selectivity is mainly from UBU ultramicropores, while packing pores promote C 2 H 2 uptake capacity.

关键词： C2H2-Aufnahme C2H2/CO2-Trennung Metall-organische Gerüstverbindungen Ultramikroporöse Bausteine

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