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作者： Paja, A. Spisak, B.J. Faculty of Physics and Applied Computer Science AGH University of Science and Technology al. Mickiewicza 30 30-059 Cracow Poland

Electron transport in the plane of a monoatomic metallic layer with non-zero magnetization is considered. The material is represented by a two-dimensional set of disordered potentials which also possess spins aligned along one axis but not necessarily oriented in one direction. Such a system can be treated as a two-component alloy. The effective cross-section for conduction electrons has been calculated. The total conductivity is obtained within two-current model.

关键词： Ferromagnetic materials

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Premises for use of fusion systems for actinide waste incineration

Premises for use of fusion systems for actinide waste incine...

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作者： Taczanowski, Stefan Faculty of Physics and Applied Computer Science AGH University of Science and Technology Al. Mickiewicza 30 Cracow 30 059 Poland

ISBN: (纸本)9781617824760

The main premise of the present study is a change in the attitude of the fusion community regarding the fission power - from perceiving it as an ally of fusion not a competitor. Seeing this, first some basic problems of the nuclear power have been sketched and then the question of spent fuel transmutations and its properties in view of energy content. In search for solutions subcritical Fusion-Driven Incinerator systems (FDI) have been considered. The advantage of subcritical systems lies in their remoteness from superprompt criticality. Next the problems of nuclear fusion have been addressed and the ways of solution with use of fission energy contained in actinides of spent nuclear fuel have been proposed. The main positive of that option of fusion power, /thanks to energy release from fissions/, is the prospect of a radical reduction of necessary plasma energy gain Q to levels achievable in much smaller i.e. much more economic devices. No less important advantages of the FDI system are: reduced load of the First Wall (FW) with 14 MeV neutrons and well homogeneous heating distribution. One should not forget that just the radiation damage is one of the main sources of difficulties in fusion technology. Then it has been suggested that one of the most viable incineration concepts is a symbiotic nuclear energy system, consisting of an incinerator of transuranics (Pu, Np and Am) and of a number of co-operating Light Water Reactors (LWRs). Summarising, the concept of actinides incineration in fusion-driven subcritical systems significantly heightens safety of nuclear power systems as a whole. In conclusion, the option of fusion presented herewith as a means to solve the problems inherent to fission based nuclear energy may facilitate the development and then launching of the fusion power.

关键词： Waste incineration

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Conductivities and transmission coefficients of ultra-thin disordered metallic films

Conductivities and transmission coefficients of ultra-thin d...

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作者： Spisak, B.J. Paja, A. Faculty of Physics and Applied Computer Science AGH University of Science and Technology al. Mickiewicza 30 30-059 Cracow Poland

The diffusive motion of quasi-two-dimensional electron gas through an ultra-thin system of disordered potentials is considered. In such a system, the Fermi sphere splits into a set of independent sheets due to a small thickness of the system. Each sheet can be seen as an electron subband. Electron transport goes through these subbands independently. The sum of electrical conductivities over the subbands determines the total current, which is calculated for ultra-thin films of cesium. We also present the relation between our approach and the Landauer formalism based on the notion of the transmission coefficient.

关键词： Metallic films

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On the classes of interval graphs of limited nesting and count of lengths 27

On the classes of interval graphs of limited nesting and cou...

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27th International Symposium on Algorithms and Computation, ISAAC 2016

作者： Klavík, Pavel Otachi, Yota Šejnoha, Jiří Computer Science Institute Faculty of Mathematics and Physics Charles University Prague Czech Republic School of Information Science Japan Advanced Institute of Science and Technology Japan Department of Applied Mathematics Faculty of Mathematics and Physics Charles University Prague Czech Republic

ISBN: (纸本)9783959770262

In 1969, Roberts introduced proper and unit interval graphs and proved that these classes are equal. Natural generalizations of unit interval graphs called k-length interval graphs were considered in which the number of different lengths of intervals is limited by k. Even after decades of research, no insight into their structure is known and the complexity of recognition is open even for k = 2. We propose generalizations of proper interval graphs called k-nested interval graphs in which there are no chains of k + 1 intervals nested in each other. It is easy to see that k-nested interval graphs are a superclass of k-length interval graphs. We give a linear-time recognition algorithm for k-nested interval graphs. This algorithm adds a missing piece to Gajarský et al. [FOCS 2015] to show that testing FO properties on interval graphs is FPT with respect to the nesting k and the length of the formula, while the problem is W[2]-hard when parameterized just by the length of the formula. Further, we show that a generalization of recognition called partial representation extension is polynomial-time solvable for k-nested interval graphs, while it is NP-hard for k-length interval graphs, even when k = 2. © Pavel Klavík, Yota Otachi, and Jiří Šejnoha.

关键词： Polynomial approximation

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Electrical resistivity of disordered monolayer metallic films

Electrical resistivity of disordered monolayer metallic film...

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作者： Jarguz, P. Paja, A. Faculty of Physics and Applied Computer Science AGH University of Science and Technology al. Mickiewicza 30 30-059 Cracow Poland

Electron transport through a disordered two-dimensional array of potentials has been investigated. The resistivity was calculated according to the Faber-Ziman diffraction model, suitably modified for a two-dimensional electron gas. The structure factor is obtained by means of numerical simulations. The pseudopotentials are assumed to be Shaw potentials with appropriate screening. The resistivities of disordered monolayers of alkali metals have been calculated in this model using parameters that allowed us to explain the experimental data for bulk materials.

关键词： Metallic films

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Dopant ions size impact on structural properties of ordered poly(3,4-ethylenedioxythiophene) systems

Dopant ions size impact on structural properties of ordered ...

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作者： Şniechowski, Maciej Kozik, Tomasz A. Luzny, Wojciech Faculty of Physics and Applied Computer Science AGH University of Science and Technology Al. Mickiewicza 30 Cracow30-059 Poland

The purpose of this work was to determine whether the structures of ordered part of novel poly(3,4-ethylenedioxythiophene) PEDOT : OTf (doped with trifluoromethanesulfonate anions) and PEDOT : HSulf (doped with hydrogensulfate anions) systems could really be simply the layered structure of PEDOT : Tos (doped with tosylate anions) with the counter ion changed to the appropriate one. Insight into this problem could be provided by molecular dynamics simulations but also by swarm intelligence optimization, developed earlier for the purpose of investigating the other structures. © 2020 Industrial Chemistry Research Institute. All rights reserved.

关键词： Sulfur compounds

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On the Beer Index of Convexity and Its Variants 31

On the Beer Index of Convexity and Its Variants

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31st International Symposium on Computational Geometry, SoCG 2015

作者： Balko, Martin Jelínek, Vít Valtr, Pavel Walczak, Bartosz Department of Applied Mathematics Faculty of Mathematics and Physics Charles University Prague Czech Republic Institute for Theoretical Computer Science Faculty of Mathematics and Physics Charles University Prague Czech Republic Theoretical Computer Science Department Faculty of Mathematics and Computer Science Jagiellonian University Kraków Poland School of Mathematics Georgia Institute of Technology AtlantaGA United States

ISBN: (纸本)9783939897835

Let S be a subset of d with finite positive Lebesgue measure. The Beer index of convexity b(S) of S is the probability that two points of S chosen uniformly independently at random see each other in S. The convexity ratio c(S) of S is the Lebesgue measure of the largest convex subset of S divided by the Lebesgue measure of S. We investigate the relationship between these two natural measures of convexity of S. We show that every set S ⊆ 2 with simply connected components satisfies b(S) ≤ α c(S) for an absolute constant α, provided b(S) is defined. This implies an affirmative answer to the conjecture of Cabello et al. asserting that this estimate holds for simple polygons. We also consider higher-order generalizations of b(S). For 1 ≤ κ ≤ d, the k-index of convexity bk(S) of S ⊆ d is the probability that the convex hull of a (κ+1)-tuple of points chosen uniformly independently at random from S is contained in S. We show that for every d>2 there is a constant β(d)>0 such that every set S ⊆ d satisfies bd(S) ≤ βc(S), provided bd(S) exists. We provide an almost matching lower bound by showing that there is a constant γ(d)>0 such that for every Ε Ε (0, 1] there is a set S ⊆ d of Lebesgue measure one satisfying c(S) ≤ ⊆ and (eqution presented).

关键词： Beer

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Performance evaluation of organometal halide MASnI₃ and inorganic BaZrS₃ hybrids in perovskites solar cells: Theoretical approach

Hybrid Advances

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Hybrid Advances 2025年 9卷

作者： Hasnain, Syed M. Iqbal, Abid Qasim, Irfan Irshad, Kamran Mir, M. Amin Malik, Muhammad Imran Sundar, L. Syam Department of Mathematics and Natural Sciences Prince Mohammad Bin Fahd University P. O. Box 1664 Al-Kobar 31952 Saudi Arabia Department of Computer Engineering King Faisal University P.O. Box 400 Al-Ahsa 31982 Saudi Arabia Department of Physics Faculty of Sciences Rawalpindi Women University 6th Road Satellite Town Rawalpindi 46300 Pakistan Faculty of Engineering and Applied Sciences (FEAS) Riphah International University (RIU) Islamabad Islamabad 44000 Pakistan School of Electrical Engineering and Computer Science (SEECS) National University of Sciences and Technology (NUST) Islamabad 44000 Pakistan Department of Mechanical Engineering Prince Mohammad Bin Fahd University P.O. Box 1664 Al-Khobar 31952 Saudi Arabia

Perovskite solar cells have made substantial progress in efficiency and technology for the future photovoltaic systems. Study investigates effect of absorber layer composition on effectiveness power conversion efficiency of solar cell configured with ITO/ZnO/MASnI₃/CuSCN/Au and ITO/ZnO/BaZrS₃/CuSCN/Au material. Using SCAPS-1D simulation tool, the optimized structural layer thicknesses, maximize device efficiency was analyzed. The MASnI₃-based perovskite solar cells consistently outperformed their BaZrS₃ counterparts, with optimized thicknesses of 0.03 μm for the ZnO layer and 0.8 μm for the MASnI₃ absorber layer, yielding a PCE of 20.17 %, an open-circuit voltage (V_oc) of 0.8378 V, a short-circuit current density (J_sc) of 34.18 mA/cm² and a fill factor (FF) of 70.45 %. Conversely, the BaZrS₃-based cells, with optimal thicknesses of 0.04 μm for the ZnO layer and 0.50 μm for the BaZrS₃ absorber layer, achieved a PCE of 8.28 %, a V_oc of 1.3758 V, a J_sc of 13.92 mA/cm², and an FF of 43.24 %. © 2025 The Authors

关键词： BaZrS3 MASnI3 Materials Perovskites solar cells Quantum efficiency SCAPS-1D simulator

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Feature tracking in VR for cumulus cloud life-cycle studies

Feature tracking in VR for cumulus cloud life-cycle studies

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Joint 9th International Workshop on Immersive Projection Technology and the 11th Eurographics Symposium on Virtual Environments, IPT/EGVE 2005

作者： Griffith, E.J. Post, F.H. Koutek, M. Heus, T. Jonker, H.J.J. Data Visualization Group Faculty of Electrical Engineering Mathematics and Computer Science Netherlands Department of Multi-Scale Physics Faculty of Applied Sciences Delft University of Technology Netherlands

ISBN: (纸本)3905673215

Feature tracking in large data sets is traditionally an off-line, batch processing operation while virtual reality typically focuses on highly interactive tasks and applications. This paper presents an approach that uses a combination of off-line preprocessing and interactive visualization in VR to simplify and speed up the identification of interesting features for further study. We couch the discussion in terms of our collaborative research on using virtual reality for cumulus cloud life-cycle studies, where selecting suitable clouds for study is simple for the skilled observer but difficult to formalize. The preprocessing involves identifying individual clouds within the data set through a 4D connected components algorithm, and then saving isosurface, bounding box, and volume information. This information is then interactively visualized in our VR Cloud Explorer with various tools and information displays to identify the most interesting clouds. In a small pilot study, reasonable performance, both in the preprocessing phase and the visualization phase, has been measured. © The Eurographics Association 2005.

关键词： Virtual reality

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Measurement of the double-differential inclusive jet cross section in proton-proton collisions at s = 5.02 TeV

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Journal of High Energy physics 2025年第1期2025卷 1-49页

作者： Hayrapetyan, A. Tumasyan, A. Adam, W. Andrejkovic, J.W. Bergauer, T. Chatterjee, S. Damanakis, K. Dragicevic, M. Escalante Del Valle, A. Hussain, P.S. Jeitler, M. Krammer, N. Lechner, L. Liko, D. Mikulec, I. Schieck, J. Schöfbeck, R. Schwarz, D. Sonawane, M. Templ, S. Waltenberger, W. Wulz, C.-E. Darwish, M.R. Janssen, T. Kello, T. Van Mechelen, P. Bols, E.S. D’Hondt, J. De Moor, A. Delcourt, M. El Faham, H. Lowette, S. Makarenko, I. Morton, A. Müller, D. Sahasransu, A.R. Tavernier, S. Van Putte, S. Vannerom, D. Clerbaux, B. Dansana, S. De Lentdecker, G. Favart, L. Hohov, D. Jaramillo, J. Lee, K. Mahdavikhorrami, M. Malara, A. Paredes, S. Pétré, L. Postiau, N. Thomas, L. Vanden Bemden, M. Vander Velde, C. Vanlaer, P. De Coen, M. Dobur, D. Knolle, J. Lambrecht, L. Mestdach, G. Rendón, C. Samalan, A. Skovpen, K. Tytgat, M. Van Den Bossche, N. Vermassen, B. Wezenbeek, L. Benecke, A. Bruno, G. Bury, F. Caputo, C. Delaere, C. Donertas, I.S. Giammanco, A. Jaffel, K. Jain, Sa. Lemaitre, V. Lidrych, J. Mastrapasqua, P. Mondal, K. Tran, T.T. Vischia, P. Wertz, S. Alves, G.A. Coelho, E. Hensel, C. Moraes, A. Rebello Teles, P. Aldá Júnior, W.L. Alves Gallo Pereira, M. Barroso Ferreira Filho, M. Brandao Malbouisson, H. Carvalho, W. Chinellato, J. Da Costa, E.M. Da Silveira, G.G. De Jesus Damiao, D. Dos Santos Sousa, V. Fonseca De Souza, S. Martins, J. Mora Herrera, C. Mota Amarilo, K. Mundim, L. Nogima, H. Santoro, A. Silva Do Amaral, S.M. Sznajder, A. Thiel, M. Vilela Pereira, A. Bernardes, C.A. Calligaris, L. Fernandez Perez Tomei, T.R. Gregores, E.M. Mercadante, P.G. Novaes, S.F. Orzari, B. Padula, Sandra S. Aleksandrov, A. Antchev, G. Hadjiiska, R. Iaydjiev, P. Misheva, M. Shopova, M. Sultanov, G. Dimitrov, A. Ivanov, T. Litov, L. Pavlov, B. Petkov, P. Petrov, A. Shumka, E. Keshri, S. Thakur, S. Cheng, T. Guo, Q. Javaid, T. Mittal, M. Yuan, L. Bauer, G. Hu, Z. Lezki, S. Yi, K. Chen, G.M. Chen, H.S. Chen, M. Iemmi, F. Jiang, C.H. Kapoor, A. Liao, H. Liu, Z.-A. Monti, F. Sharma, R. Song, J.N. Tao, J. Wang, J. Zhang, H. Aga Yerevan Physics Institute Yerevan Armenia Institut für Hochenergiephysik Vienna Austria Universiteit Antwerpen Antwerpen Belgium Vrije Universiteit Brussel Brussel Belgium Université Libre de Bruxelles Bruxelles Belgium Ghent University Ghent Belgium Université Catholique de Louvain Louvain-la-Neuve Belgium Centro Brasileiro de Pesquisas Fisicas Rio de Janeiro Brazil Universidade do Estado do Rio de Janeiro Rio de Janeiro Brazil Universidade Estadual Paulista Universidade Federal do ABC São Paulo Brazil Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences Sofia Bulgaria University of Sofia Sofia Bulgaria Instituto De Alta Investigación Universidad de Tarapacá Casilla 7 D Arica Chile Beihang University Beijing China Department of Physics Tsinghua University Beijing China Institute of High Energy Physics Beijing China State Key Laboratory of Nuclear Physics and Technology Peking University Beijing China Sun Yat-Sen University Guangzhou China University of Science and Technology of China Hefei China Institute of Modern Physics and Key Laboratory of Nuclear Physics and Ion-beam Application (MOE) — Fudan University Shanghai China Zhejiang University Zhejiang Hangzhou China Universidad de Los Andes Bogota Venezuela Universidad de Antioquia Medellin Colombia University of Split Faculty of Electrical Engineering Mechanical Engineering and Naval Architecture Split Croatia University of Split Faculty of Science Split Croatia Institute Rudjer Boskovic Zagreb Croatia University of Cyprus Nicosia Cyprus Charles University Prague Czech Republic Escuela Politecnica Nacional Quito Ecuador Universidad San Francisco de Quito Quito Ecuador Academy of Scientific Research and Technology of the Arab Republic of Egypt Egyptian Network of High Energy Physics Cairo Egypt Center for High Energy Physics (CHEP-FU) Fayoum University El-Fayoum Egypt National Institute of Chemical Physics and Biophysics Tallinn Estonia Department of Physics

The inclusive jet cross section is measured as a function of jet transverse momentum pT and rapidity y. The measurement is performed using proton-proton collision data at s = 5.02 TeV, recorded by the CMS experiment a... 详细信息

The inclusive jet cross section is measured as a function of jet transverse momentum p_T and rapidity y. The measurement is performed using proton-proton collision data at s = 5.02 TeV, recorded by the CMS experiment at the LHC, corresponding to an integrated luminosity of 27.4 pb⁻¹. The jets are reconstructed with the anti-k_T algorithm using a distance parameter of R = 0.4, within the rapidity interval |y| < 2, and across the kinematic range 0.06 < p_T< 1 TeV. The jet cross section is unfolded from detector to particle level using the determined jet response and resolution. The results are compared to predictions of perturbative quantum chromodynamics, calculated at both next-to-leading order and next-to-next-to-leading order. The predictions are corrected for nonperturbative effects, and presented for a variety of parton distribution functions and choices of the renormalization/factorization scales and the strong coupling α_S. © The Author(s) 2025.

关键词： Hadron-Hadron Scattering Jet physics QCD

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