检索结果-内蒙古大学图书馆

Critical pore radius and transport properties of disordered hard- and overlapping-sphere models

physical Review E 2021年第1期104卷 014127-014127页

作者： Michael A. Klatt Robert M. Ziff Salvatore Torquato Department of Physics Princeton University Princeton New Jersey 08544 USA Institut für Theoretische Physik FAU Erlangen-Nürnberg Staudtstr. 7 91058 Erlangen Germany Center for the Study of Complex Systems and Department of Chemical Engineering University of Michigan Ann Arbor Michigan 48109 USA Department of Chemistry Princeton Institute for the Science and Technology of Materials and Program in Applied and Computational Mathematics Princeton University Princeton New Jersey 08544 USA

Transport properties of porous media are intimately linked to their pore-space microstructures. We quantify geometrical and topological descriptors of the pore space of certain disordered and ordered distributions of spheres, including pore-size functions and the critical pore radius δc. We focus on models of porous media derived from maximally random jammed sphere packings, overlapping spheres, equilibrium hard spheres, quantizer sphere packings, and crystalline sphere packings. For precise estimates of the percolation thresholds, we use a strict relation of the void percolation around sphere configurations to weighted bond percolation on the corresponding Voronoi networks. We use the Newman-Ziff algorithm to determine the percolation threshold using universal properties of the cluster size distribution. The critical pore radius δc is often used as the key characteristic length scale that determines the fluid permeability k. A recent study [Torquato, Adv. Wat. Resour. 140, 103565 (2020)] suggested for porous media with a well-connected pore space an alternative estimate of k based on the second moment of the pore size 〈δ2〉, which is easier to determine than δc. Here, we compare δc to the second moment of the pore size 〈δ2〉, and indeed confirm that, for all porosities and all models considered, δc2 is to a good approximation proportional to 〈δ2〉. However, unlike 〈δ2〉, the permeability estimate based on δc2 does not predict the correct ranking of k for our models. Thus, we confirm 〈δ2〉 to be a promising candidate for convenient and reliable estimates of the fluid permeability for porous media with a well-connected pore space. Moreover, we compare the fluid permeability of our models with varying degrees of order, as measured by the τ order metric. We find that (effectively) hyperuniform models tend to have lower values of k than their nonhyperuniform counterparts. Our findings could facilitate the design of porous media with desirable transport properties via targete

关键词： Geophysical networks Materials Patterns in complex systems

来源：评论

学校读者我要写书评

暂无评论

Subaru Hyper-Supreme Cam observations of IC 1396: Source catalogue, member population, and sub-clusters of the complex

arXiv

引用

arXiv 2025年

作者： Das, Swagat R. Gupta, Saumya Jose, Jessy Samal, Manash Herczeg, Gregory J. Guo, Zhen More, Surhud Prakash, Prem Departamento de Astronomia Universidad de Chile Las Condes Santiago7591245 Chile Department of Physics Indian Institute of Science Education and Research Tirupati Tirupati Andhra Pradesh Yerpedu517619 India Astronomy Unit School of Physical and Chemical Sciences Queen Mary University of London Mile end Road LondonE14NS United Kingdom Navrangpura Gujarat Ahmedabad380 009 India Kavli Institute for Astronomy and Astrophysics Peking University Yi He Yuan Lu 5 Haidian Qu Beijing100871 China Instituto de Física y Astronomía Universidad de Valparaíso ave. Gran Bretaña 1111 Casilla 5030 Valparaíso Chile Millennium Institute of Astrophysics Nuncio Monseñor Sotero Sanz 100 Of. 104 Providencia Santiago Chile Centre for Astrophysics Research University of Hertfordshire HatfieldAL10 9AB United Kingdom Inter University Centre for Astronomy and Astrophysics Ganeshkhind Pune411007 India Indian Institute of Technology Hyderabad Sangareddy Telangana Kandi India

Context. Identifying members of star-forming regions is an initial step to analyse the properties of a molecular cloud complex. In such membership analysis, the sensitivity of a dataset plays a significant role in detecting stellar mass up to a specific limit, which is crucial for understanding various stellar properties such as disk evolution and planet formation across different environments. Aims. IC 1396 is a nearby classical H II region dominated by feedback-driven star formation activity. In this work, we aim to identify the low-mass member populations of the complex using deep optical multi-band imaging with Subaru-Hyper Suprime Cam (HSC) over ∼ 7.1 deg2 in r2, i2, and Y-bands. The optical dataset is complemented by UKIDSS near-infrared data in the J, H, and K bands. Through this work, we evaluate the strengths and limitations of machine learning techniques when applied to such astronomical datasets. Methods. To identify member populations of IC 1396, we employ the random forest (RF) classifier of machine learning technique. Random forest classifier is an ensemble of individual decision trees suitable for large, high-dimensional datasets. The training set used in this work is derived from previous Gaia-based studies, where the member stars are younger than ∼ 10 Myr. However, its sensitivity is limited to ∼ 20 mag in the r2 band, making it challenging to identify candidates at the fainter end. In this analysis, in addition to magnitudes and colours, we incorporate several derived parameters from the magnitude and colour of the sources to identify candidate members of the star-forming complex. By employing this method, we are able to identify promising candidate member populations of the star-forming complex. We discuss the associated limitations and caveats in the method and for improvment in future studies. Results. In this analysis, we identify 2425 high-probability low-mass stars distributed within the entire star-forming complex, of which 1331 are new dete

关键词：

来源：评论

学校读者我要写书评

暂无评论

Dehydrogenation of Ammonia Borane by Platinum-Nickel Dimers: Regulation of Heteroatom Interspace Boosts Bifunctional Synergetic Catalysis

引用

Angewandte Chemie 2022年第41期134卷

作者： Dr. Si Chen Bingbing Gong Dr. Jian Gu Prof. Yue Lin Prof. Bing Yang Dr. Qingqing Gu Rui Jin Dr. Qin Liu Wenxiang Ying Xianxian Shi Wenlong Xu Lihua Cai Yin Li Prof. Zhihu Sun Prof. Shiqiang Wei Prof. Wenhua Zhang Prof. Junling Lu Department of Chemical Physics University of Science and Technology of China Hefei Anhui 230026 China Department of Material Science and Engineering University of Science and Technology of China Hefei Anhui 230026 China Hefei National Research Center for Physical Sciences at the Microscale University of Science and Technology of China Hefei Anhui 230026 China CAS Key Laboratory of Science and Technology on Applied Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian Liaoning 116023 China National Synchrotron Radiation Laboratory University of Science and Technology of China Hefei Anhui 230029 China

Regulation of the atom-atom interspaces of dual-atom catalysts is essential to optimize the dual-atom synergy to achieve high activity but remains challenging. Herein, we report an effective strategy to regulate the Pt 1 -Ni 1 interspace to achieve Pt 1 Ni 1 dimers and Pt 1 +Ni 1 heteronuclear dual-single-atom catalysts (HDSACs) by tailoring steric hindrance between metal precursors during synthesis. Spectroscopic characterization reveals obvious electron transfers in Pt 1 Ni 1 oxo dimers but not in Pt 1 +Ni 1 HDSAC. In the hydrolysis of ammonia borane (AB), the H 2 formation rates show an inverse proportion to the Pt 1 -Ni 1 interspace. The rate of Pt 1 Ni 1 dimers is ≈13 and 2 times higher than those of Pt 1 and Pt 1 +Ni 1 HDSAC, manifesting the interspace-dependent synergy. Theoretical calculations reveal that the bridging OH group in Pt 1 Ni 1 dimers promotes water dissociation, while Pt 1 facilitates the cleavage of B−H bonds in AB, which boosts a bifunctional synergy to accelerate H 2 production cooperatively.

关键词： Atomic Layer Deposition Dimeric Catalysts Dual-Atom Catalysts Dual-Atom Synergy Hydrolysis of Ammonia Borane

来源：评论

学校读者我要写书评

暂无评论

Identification of single- and double-well coherence-incoherence patterns by the binary distance matrix

arXiv

引用

arXiv 2022年

作者： dos Santos, Vagner Sales, Matheus Rolim Muni, Sishu Shankar Szezech, José D. Batista, Antonio Marcos Yanchuk, Serhiy Kurths, Jürgen Department of Mathematics and Statistics State University of Ponta Grossa PR Ponta Grossa84030-900 Brazil Ciências Exatas Naturais e Engenharias Centro Universitário UNIFATEB PR Telêmaco Borba84266-010 Brazil Graduate Program in Sciences/Physics State University of Ponta Grossa PR Ponta Grossa84030-900 Brazil Potsdam Institute for Climate Impact Research Leibniz Association P.O. Box 6012 03 PotsdamD-14412 Germany Institute of Mathematics Humboldt University Berlin Berlin12489 Germany Department of Physical Sciences Indian Institute of Science Education and Research Kolkata West Bengal Mohanpur741246 India Institute of Physics Humboldt University Berlin Berlin10099 Germany Division of Dynamics Lodz University of Technology Stefanowskiego 1/15 Lodz90-924 Poland

The study of chimera states or, more generally, coherence-incoherence patterns has led to the development of several tools for their identification and characterization. In this work, we extend the eigenvalue decomposition method to distinguish between single-well and double-well patterns. By applying our method, we are able to identify the following four types of dynamical patterns in a ring of nonlocally coupled Chua circuits and nonlocally coupled cubic maps: single-well cluster, single-well coherence-incoherence pattern, double-well cluster, and double-well coherence-incoherence. In a ring-star network of Chua circuits, we investigate the influence of adding a central node on the spatio-temporal patterns. Our results show that increasing the coupling with the central node favors the occurrence of single-well coherence-incoherence states. We observe that the boundaries of the attraction basins resemble fractal and riddled structures. © 2022, CC BY-NC-SA.

关键词： Timing circuits

来源：评论

学校读者我要写书评

暂无评论

Cooperative control of perpendicular magnetic anisotropy via crystal structure and orientation in single-crystal flexible SrRuO3 membranes

arXiv

引用

arXiv 2021年

作者： Lu, Zengxing Yang, Yongjie Wen, Lijie Feng, Jiatai Lao, Bing Zheng, Xuan Li, Sheng Zhao, Kenan Cao, Bingshan Ren, Zeliang Song, Dongsheng Du, Haifeng Guo, Yuanyuan Zhong, Zhicheng Hao, Xianfeng Wang, Zhiming Li, Run-Wei Key Laboratory of Applied Chemistry College of Environmental and Chemical Engineering Yanshan University Qinhuangdao066004 China CAS Key Laboratory of Magnetic Materials and Devices Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo315201 China Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo315201 China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing100049 China Surface Engineering Institute University of Science and Technology Liaoning Anshan114051 China University of Nottingham Ningbo315201 China Nano Science and Technology Institute University of Science and Technology of China Hefei230026 China Institutes of Physical Science and Information Technology Anhui University Hefei230601 China Anhui Key Laboratory of Condensed Matter Physics at Extreme Conditions High Magnetic Field Laboratory HFIPS Anhui Chinese Academy of Sciences Hefei230031 China School of Materials and Metallurgy University of Science and Technology Liaoning Anshan114051 China

Flexible magnetic materials with robust and controllable perpendicular magnetic anisotropy (PMA) are highly desirable for developing flexible high-performance spintronic devices. However, it is still challenge to fabricate PMA films through current techniques of direct deposition on polymers. Here, we report a facile method for synthesizing single-crystal freestanding SrRuO3 (SRO) membranes with controlled crystal structure and orientation using water-soluble Ca3-xSrxAl2O6 sacrificial layers. Through cooperative effect of crystal structure and orientation engineering, flexible SrRuO3 membranes reveal highly tunable magnetic anisotropy from in-plane to our-of-plane with a remarkable PMA energy of 7.34×106 erg/cm3. Based on the first-principles calculations, it reveals that the underlying mechanism of PMA modulation is intimately correlated with structure-controlled Ru 4d-orbital occupation, as well as the spin-orbital matrix element differences, dependent on the crystal orientation. In addition, there are no obvious changes of the magnetism after 10,000 bending cycles, indicating an excellent magnetism reliability in the prepared films. This work provides a feasible approach to prepare the flexible oxide films with strong and controllable PMA. © 2021, CC BY.

关键词： Ruthenium compounds

来源：评论

学校读者我要写书评

暂无评论

resonance production in Pb–Pb collisions at TeV

引用

The European physical Journal C 2023年第5期83卷 1-16页

作者： Acharya, S. Adamová, D. Adler, A. Aglieri Rinella, G. Agnello, M. Agrawal, N. Ahammed, Z. Ahmad, S. Ahn, S. U. Ahuja, I. Akindinov, A. Al-Turany, M. Aleksandrov, D. Alessandro, B. Alfanda, H. M. Alfaro Molina, R. Ali, B. Ali, Y. Alici, A. Alizadehvandchali, N. Alkin, A. Alme, J. Alocco, G. Alt, T. Altsybeev, I. Anaam, M. N. Andrei, C. Andronic, A. Anguelov, V. Antinori, F. Antonioli, P. Anuj, C. Apadula, N. Aphecetche, L. Appelshäuser, H. Arata, C. Arcelli, S. Arnaldi, R. Arsene, I. C. Arslandok, M. Augustinus, A. Averbeck, R. Aziz, S. Azmi, M. D. Badalà, A. Baek, Y. W. Bai, X. Bailhache, R. Bailung, Y. Bala, R. Balbino, A. Baldisseri, A. Balis, B. Banerjee, D. Banoo, Z. Barbera, R. Barioglio, L. Barlou, M. Barnaföldi, G. G. Barnby, L. S. Barret, V. Barreto, L. Bartels, C. Barth, K. Bartsch, E. Baruffaldi, F. Bastid, N. Basu, S. Batigne, G. Battistini, D. Batyunya, B. Bauri, D. Alba, J. L. Bazo Bearden, I. G. Beattie, C. Becht, P. Behera, D. Belikov, I. Bell Hechavarria, A. D. C. Bellini, F. Bellwied, R. Belokurova, S. Belyaev, V. Bencedi, G. Beole, S. Bercuci, A. Berdnikov, Y. Berdnikova, A. Bergmann, L. Besoiu, M. G. Betev, L. Bhaduri, P. P. Bhasin, A. Bhat, M. A. Bhattacharjee, B. Bianchi, L. Bianchi, N. Bielčík, J. Bielčíková, J. Biernat, J. Bigot, A. P. Bilandzic, A. Biro, G. Biswas, S. Bize, N. Blair, J. T. Blau, D. Blidaru, M. B. Bluhme, N. Blume, C. Boca, G. Bock, F. Bodova, T. Bogdanov, A. Boi, S. Bok, J. Boldizsár, L. Bolozdynya, A. Bombara, M. Bond, P. M. Bonomi, G. Borel, H. Borissov, A. Bossi, H. Botta, E. Bratrud, L. Braun-Munzinger, P. Bregant, M. Broz, M. Bruno, G. E. Buckland, M. D. Budnikov, D. Buesching, H. Bufalino, S. Bugnon, O. Buhler, P. Buthelezi, Z. Butt, J. B. Bylinkin, A. Bysiak, S. A. Cai, M. Caines, H. Caliva, A. Calvo Villar, E. Camacho, J. M. M. Camerini, P. Canedo, F. D. M. Carabas, M. Carnesecchi, F. Caron, R. Castillo Castellanos, J. Catalano, F. Ceballos Sanchez, C. Chakaberia, I. Chakraborty, P. Chandra, S. Chapeland, S. Chartier, M. Chattopadhyay, S. Chavez, T. G. Cheng, T. Ch Université Clermont Auvergne CNRS/IN2P3 LPC Clermont-Ferrand France Variable Energy Cyclotron Centre Homi Bhabha National Institute Kolkata India Nuclear Physics Institute of the Czech Academy of Sciences Husinec-Řež Czech Republic Johann-Wolfgang-Goethe Universität Frankfurt Institut für Informatik Fachbereich Informatik und Mathematik Frankfurt Germany European Organization for Nuclear Research (CERN) Geneva Switzerland Dipartimento DISAT del Politecnico and Sezione INFN Turin Italy INFN Sezione di Bologna Bologna Italy Department of Physics Aligarh Muslim University Aligarh India Korea Institute of Science and Technology Information Daejeon Republic of Korea Faculty of Science P.J. Šafárik University Košice Slovak Republic Affiliated with an Institute Covered by a Cooperation Agreement with CERN Geneva Switzerland Research Division and ExtreMe Matter Institute EMMI GSI Helmholtzzentrum für Schwerionenforschung GmbH Darmstadt Germany INFN Sezione di Torino Turin Italy Central China Normal University Wuhan China Instituto de Física Universidad Nacional Autónoma de México Mexico City Mexico COMSATS University Islamabad Islamabad Pakistan Dipartimento di Fisica e Astronomia dell’Università and Sezione INFN Bologna Italy University of Houston Houston USA Department of Physics and Technology University of Bergen Bergen Norway INFN Sezione di Cagliari Cagliari Italy Institut für Kernphysik Johann Wolfgang Goethe-Universität Frankfurt Frankfurt Germany Horia Hulubei National Institute of Physics and Nuclear Engineering Bucharest Romania Westfälische Wilhelms-Universität Münster Institut für Kernphysik Münster Germany Physikalisches Institut Ruprecht-Karls-Universität Heidelberg Heidelberg Germany INFN Sezione di Padova Padua Italy Lawrence Berkeley National Laboratory Berkeley USA SUBATECH IMT Atlantique Nantes Université CNRS-IN2P3 Nantes France Laboratoire de Physique Subatomique et de Cosmologie Université Grenoble-Alpes CNRS-IN2P3 Grenoble

Hadronic resonances are used to probe the hadron gas produced in the late stage of heavy-ion collisions since they decay on the same timescale, of the order of 1–10 fm/c, as the decoupling time of the system. In the hadron gas, (pseudo)elastic scatterings among the products of resonances that decayed before the kinetic freeze-out and regeneration processes counteract each other, the net effect depending on the resonance lifetime, the duration of the hadronic phase, and the hadronic cross sections at play. In this context, the $$\Sigma (1385)^{\pm }$$ particle is of particular interest as models predict that regeneration dominates over rescattering despite its relatively short lifetime of about 5.5 fm/c. The first measurement of the $$\Sigma (1385)^{\pm }$$ resonance production at midrapidity in Pb–Pb collisions at $$\sqrt{s_{\textrm{NN}}}= 5.02$$ TeV with the ALICE detector is presented in this Letter. The resonances are reconstructed via their hadronic decay channel, $$\Lambda \pi $$ , as a function of the transverse momentum ( $$p_\textrm{T}$$ ) and the collision centrality. The results are discussed in comparison with the measured yield of pions and with expectations from the statistical hadronization model as well as commonly employed event generators, including PYTHIA8/Angantyr and EPOS3 coupled to the UrQMD hadronic cascade afterburner. None of the models can describe the data. For $$\Sigma (1385)^{\pm }$$ , a similar behaviour as $$\textrm{K}^{*} (892)^{0}$$ is observed in data unlike the predictions of EPOS3 with afterburner.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Gapless Quantum Spin Liquid in the Triangular System Sr3CuSb2O9

引用

physical Review Letters 2020年第26期125卷 267202-267202页

作者： S. Kundu Aga Shahee Atasi Chakraborty K. M. Ranjith B. Koo Jörg Sichelschmidt Mark T. F. Telling P. K. Biswas M. Baenitz I. Dasgupta Sumiran Pujari A. V. Mahajan Department of Physics Indian Institute of Technology Bombay Powai Mumbai 400076 India School of Physical Sciences Indian Association for the Cultivation of Science Jadavpur Kolkata 700032 India Max Planck Institute for Chemical Physics of Solids 01187 Dresden Germany ISIS Pulsed Neutron and Muon Source STFC Rutherford Appleton Laboratory Harwell Campus Didcot Oxfordshire OX110QX United Kingdom

We report gapless quantum spin liquid behavior in the layered triangular Sr3CuSb2O9 system. X-ray diffraction shows superlattice reflections associated with atomic site ordering into triangular Cu planes well separated by Sb planes. Muon spin relaxation measurements show that the S=12 moments at the magnetically active Cu sites remain dynamic down to 65 mK in spite of a large antiferromagnetic exchange scale evidenced by a large Curie-Weiss temperature θCW≃−143 K as extracted from the bulk susceptibility. Specific heat measurements also show no sign of long-range order down to 0.35 K. The magnetic specific heat (Cm) below 5 K reveals a Cm=γT+αT2 behavior. The significant T2 contribution to the magnetic specific heat invites a phenomenology in terms of the so-called Dirac spinon excitations with a linear dispersion. From the low-T specific heat data, we estimate the dominant exchange scale to be ∼36 K using a Dirac spin liquid ansatz which is not far from the values inferred from microscopic density functional theory calculations (∼45 K) as well as high-temperature susceptibility analysis (∼70 K). The linear specific heat coefficient is about 18 mJ/mol K2 which is somewhat larger than for typical Fermi liquids.

关键词： Magnetic susceptibility Spin dynamics Thermal properties Strongly correlated systems Two-dimensional electron system Muon spin relaxation & rotation

来源：评论

学校读者我要写书评

暂无评论

Multi-wavelength analysis of the galactic PeVatron candidate LHAASO J2108+5157

arXiv

引用

arXiv 2023年

作者： Pirola, G. Juryšek, J. Balbo, M. Eckert, D. Tramacere, A. Walter, R. Abe, K. Abe, S. Aguasca-Cabot, A. Agudo, I. Crespo, N. Alvarez Antonelli, L.A. Aramo, C. Arbet-Engels, A. Arcaro, C. Artero, M. Asano, K. Aubert, P. Baktash, A. Bamba, A. Larriva, A. Baquero Baroncelli, L. de Almeida, U. Barres Barrio, J.A. Batkovic, I. Baxter, J. González, J. Becerra Bernardini, E. Bernardos, M.I. Medrano, J. Bernete Berti, A. Bhattacharjee, P. Biederbeck, N. Bigongiari, C. Bissaldi, E. Blanch, O. Bonnoli, G. Bordas, P. Bulgarelli, A. Burelli, I. Burmistrov, L. Buscemi, M. Cardillo, M. Caroff, S. Carosi, A. Carrasco, M.S. Cassol, F. Cauz, D. Cerasole, D. Ceribella, G. Chai, Y. Cheng, K. Chiavassa, A. Chikawa, M. Chytka, L. Cifuentes, A. Contreras, J.L. Cortina, J. Costantini, H. Dalchenko, M. Dazzi, F. De Angelis, A. de Bony de Lavergne, M. De Lotto, B. De Lucia, M. de Menezes, R. Del Peral, L. Deleglise, G. Delgado, C. Mengual, J. Delgado della Volpe, D. Dellaiera, M. Di Piano, A. Di Pierro, F. Di Pilato, A. Di Tria, R. Di Venere, L. Díaz, C. Dominik, R.M. Prester, D. Dominis Donini, A. Dorner, D. Doro, M. Eisenberger, L. Elsässer, D. Emery, G. Escudero, J. Ramazani, V. Fallah Ferrara, G. Ferrarotto, F. Fiasson, A. Foffano, L. Coromina, L. Freixas Fröse, S. Fukami, S. Fukazawa, Y. Garcia, E. López, R. Garcia Gasbarra, C. Gasparrini, D. Geyer, D. Paiva, J. Giesbrecht Giglietto, N. Giordano, F. Gliwny, P. Godinovic, N. Grau, R. Green, J. Green, D. Gunji, S. Günther, P. Hackfeld, J. Hadasch, D. Hahn, A. Hashiyama, K. Hassan, T. Hayashi, K. Heckmann, L. Heller, M. Llorente, J. Herrera Hirotani, K. Hoffmann, D. Horns, D. Houles, J. Hrabovsky, M. Hrupec, D. Hui, D. Hütten, M. Iarlori, M. Imazawa, R. Inada, T. Inome, Y. Ioka, K. Iori, M. Ishio, K. Martinez, I. Jimenez Jurysek, J. Kagaya, M. Karas, V. Katagiri, H. Kataoka, J. Kerszberg, D. Kobayashi, Y. Kohri, K. Kong, A. Kubo, H. Kushida, J. Lainez, M. Lamanna, G. Lamastra, A. Le Flour, T. Linhoff, M. Longo, F. López-Coto, R. Max-Planck-Institut für Physik Föhringer Ring 6 München80805 Germany FZU - Institute of Physics the Czech Academy of Sciences Na Slovance 1999/2 182 00 Prague 8 Czech Republic Department of Astronomy University of Geneva Chemin d’Ecogia 16 VersoixCH-1290 Switzerland Department of Physics Tokai University Japan Institute for Cosmic Ray Research University of Tokyo Japan Departament de Física Quàntica i Astrofísica Institut de Ciències del Cosmos Universitat de Barcelona IEEC-UB Spain Instituto de Astrofísica de Andalucía-CSIC Spain EMFTEL department IPARCOS Universidad Complutense de Madrid Spain INAF - Osservatorio Astronomico di Roma Italy INFN Sezione di Napoli Italy Max-Planck-Institut für Physik Germany INFN Sezione di Padova Università degli Studi di Padova Italy The Barcelona Institute of Science and Technology Spain LAPP Univ. Grenoble Alpes Univ. Savoie Mont Blanc CNRS-IN2P3 Annecy France Universität Hamburg Institut für Experimentalphysik Germany Graduate School of Science University of Tokyo Japan Universidad del Azuay Ecuador INAF - Osservatorio di Astrofisica e Scienza dello spazio di Bologna Italy Centro Brasileiro de Pesquisas Físicas Brazil Instituto de Astrofísica de Canarias Departamento de Astrofísica Universidad de La Laguna Spain CIEMAT Spain Department of Physics TU Dortmund University Germany INFN Sezione di Bari Politecnico di Bari Italy INAF - Osservatorio Astronomico di Brera Italy INFN Sezione di Trieste Università degli Studi di Udine Italy University of Geneva Département de physique nucléaire et corpusculaire Switzerland INFN Sezione di Catania Italy Italy Aix Marseille Univ CNRS IN2P3 CPPM France INFN Sezione di Bari Università di Bari Italy INFN Sezione di Torino Italy Palacky University Olomouc Faculty of Science Czech Republic University of Alcalá UAH Spain Port d’Informació Científica Spain University of Rijeka Department of Physics Croatia Institute for Theoretical Physics and Astrophysics Universität Wür

LHAASO J2108+5157 is a recently discovered source, detected in the Ultra-High-Energy band by the LHAASO collaboration. Two molecular clouds were identified in the direction coincident with LHAASO J2108+5157 and, from the spectra reported by LHAASO, there is no sign of an energy cutoff up to 200 TeV. This source makes a promising galactic PeVatron candidate. In 2021, the Large-Sized Telescope prototype (LST-1) of the Cherenkov Telescope Array (CTA) Observatory, collected about 50 hours of quality-selected data on LHAASO J2108+5157. Through these observations, we managed to compute stringent upper limits on the source emission in the multi-TeV band. Together with the analysis of XMM-Newton data and 12 years of Fermi-LAT data, we performed a multi-wavelength study of the source, investigating different possible scenarios of particle acceleration. In this contribution, we will present the results of the analysis, as well as the multi-wavelength modeling, and consequent interpretation of different possible scenarios of emission. © 2023, CC0.

关键词： Telescopes

来源：评论

学校读者我要写书评

暂无评论

Roadmap for Sustainable Mixed Ionic-Electronic Conducting Membranes

引用

Advanced Functional Materials 2022年第6期32卷 2105702-2105702页

作者： Chen, Guoxing Feldhoff, Armin Weidenkaff, Anke Li, Claudia Liu, Shaomin Zhu, Xuefeng Sunarso, Jaka Huang, Kevin Wu, Xiao-Yu Ghoniem, Ahmed F. Yang, Weishen Xue, Jian Wang, Haihui Shao, Zongping Duffy, Jack H. Brinkman, Kyle S. Tan, Xiaoyao Zhang, Yan Jiang, Heqing Costa, Rémi Friedrich, Kaspar Andreas Kriegel, Ralf Fraunhofer Research Institution for Materials Recycling and Resource Strategies IWKS Brentanostraße 2a Alzenau63755 Germany Institute of Physical Chemistry and Electrochemistry Leibniz University Hannover Callinstr. 3A Hannover30167 Germany Department of Materials and Earth Sciences Technical University Darmstadt Alarich-Weiss-Str. 2 Darmstadt64287 Germany Research Centre for Sustainable Technologies Faculty of Engineering Computing and Science Swinburne University of Technology Jalan Simpang Tiga Sarawak Kuching93350 Malaysia State Key Laboratory of Organic-Inorganic Composites College of Chemical Engineering Beijing University of Chemical Technology Beijing100029 China State Key Laboratory of Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian116023 China University of Chinese Academy of Sciences Beijing100049 China Department of Mechanical Engineering University of South Carolina ColumbiaSC29208 United States Department of Mechanical and Mechatronics Engineering University of Waterloo 200 University Ave W WaterlooONN2L 3G1 Canada Department of Mechanical Engineering Massachusetts Institute of Technology 77 Massachusetts Avenue CambridgeMA02139 United States School of Chemistry and Chemical Engineering Guangdong Provincial Key Lab of Green Chemical Product Technology South China University of Technology Guangzhou510640 China Department of Chemical Engineering Beijing Key Laboratory of Membrane Materials and Engineering Tsinghua University Beijing100084 China Western Australia School of Mines: Minerals Energy and Chemical Engineering Curtin University PerthWA6102 Australia College of Chemical Engineering Nanjing Tech University Nanjing210009 China Department of Materials Science and Engineering Clemson University ClemsonSC29634 United States State Key Laboratory of Separation Membranes and Membrane Processes Department of Chemical Engineering Tianjin Polytechnic University Tianjin300

Mixed ionic-electronic conducting (MIEC) membranes have gained growing interest recently for various promising environmental and energy applications, such as H2 and O2 production, CO2 reduction, O2 and H2 separation, CO2 separation, membrane reactors for production of chemicals, cathode development for solid oxide fuel cells, solar-driven evaporation and energy-saving regeneration as well as electrolyzer cells for power-to-X technologies. The purpose of this roadmap, written by international specialists in their fields, is to present a snapshot of the state-of-the-art, and provide opinions on the future challenges and opportunities in this complex multidisciplinary research field. As the fundamentals of using MIEC membranes for various applications become increasingly challenging tasks, particularly in view of the growing interdisciplinary nature of this field, a better understanding of the underlying physical and chemical processes is also crucial to enable the career advancement of the next generation of researchers. As an integrated and combined article, it is hoped that this roadmap, covering all these aspects, will be informative to support further progress in academics as well as in the industry-oriented research toward commercialization of MIEC membranes for different applications. © 2021 The Authors. Advanced Functional Materials published by Wiley-VCH GmbH

关键词： Carbon dioxide

来源：评论

学校读者我要写书评

暂无评论

Roadmap on Perovskite Light-Emitting Diodes

arXiv

引用

arXiv 2023年

作者： Chen, Ziming Hoye, Robert L.Z. Yip, Hin-Lap Fiuza-Maneiro, Nadesh López-Fernández, Iago Otero-Martínez, Clara Polavarapu, Lakshminarayana Mondal, Navendu Mirabelli, Alessandro Anaya, Miguel Stranks, Samuel D. Liu, Hui Shi, Guangyi Xiao, Zhengguo Kim, Nakyung Kim, Yunna Shin, Byungha Shi, Jinquan Liu, Mengxia Zhang, Qianpeng Fan, Zhiyong Loy, James C. Zhao, Lianfeng Rand, Barry P. Arfin, Habibul Saikia, Sajid Nag, Angshuman Zou, Chen Lin, Lih Y. Xiang, Hengyang Zeng, Haibo Liu, Denghui Su, Shi-Jian Wang, Chenhui Zhong, Haizheng Xuan, Tong-Tong Xie, Rong-Jun Bao, Chunxiong Gao, Feng Gao, Xiang Qin, Chuanjiang Kim, Young-Hoon Beard, Matthew C. Department of Chemistry Centre for Processible Electronics Imperial College London LondonW12 0BZ United Kingdom Inorganic Chemistry Laboratory Department of Chemistry University of Oxford South Parks Road OxfordOX1 3QR United Kingdom Department of Materials Imperial College London Exhibition Road LondonSW7 2AZ United Kingdom Department of Materials Science and Engineering City University of Hong Kong Hong Kong Hong Kong School of Energy and Environment City University of Hong Kong Hong Kong Hong Kong CINBIO Universidade de Vigo Materials Chemistry and Physics Group Department of Physical Chemistry Campus Universitario As Lagoas Marcosende Vigo36310 Spain Department of Chemical Engineering and Biotechnology University of Cambridge CambridgeCB3 0AS United Kingdom Department of Physics CAS Key Laboratory of Strongly Coupled Quantum Matter Physics University of Science and Technology of China Anhui Hefei230026 China Daejeon34141 Korea Republic of Department of Electrical Engineering Yale University New HavenCT06511 United States Energy Sciences Institute Yale University West HavenCT06516 United States Department of Electronic & Computer Engineering The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong Hong Kong Department of Physics Princeton University PrincetonNJ08544 United States Department of Electrical and Computer Engineering Princeton University PrincetonNJ08544 United States Andlinger Center for Energy and the Environment Princeton University PrincetonNJ08544 United States Pune411008 India Zhejiang University Zhejiang Hangzhou310058 China University of Washington SeattleWA98195 United States MIIT Key Laboratory of Advanced Display Materials and Devices Institute of Optoelectronics & Nanomaterials College of Materials Science and Engineering Nanjing University of Science and Technology Nanjing210094 China State Key Laboratory of Luminescent Materials and Devices Institute of Polymer Opto

In recent years, the field of metal-halide perovskite emitters has rapidly emerged as a new community in solid-state lighting. Their exceptional optoelectronic properties have contributed to the rapid rise in external... 详细信息

关键词： Perovskite

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：