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arXiv 2022年

作者： ráth, Balázs Varga, Kitti Fekete, Panna Tímea Molontay, roland Afréd Rényi Institute of Mathematics Hungary Department of Stochastics Institute of Mathematics Budapest University of Technology and Economics Hungary ELKH-BME Stochastics Research Group Chile Department of Computer Science and Information Theory Faculty of Electrical Engineering and Informatics Budapest University of Technology and Economics Hungary ELKH-ELTE Egerváry Research Group Hungary Department of Applied Analysis and Computational Mathematics Eötvös Loránd University Hungary

We study a variant of the color-avoiding percolation model introduced by Krause et al., namely we investigate the color-avoiding bond percolation setup on (not necessarily properly) edge-colored Erd̋ os–rényi random graphs. We say that two vertices are color-avoiding connected in an edge-colored graph if after the removal of the edges of any color, they are in the same component in the remaining graph. The color-avoiding connected components of an edge-colored graph are maximal sets of vertices such that any two of them are color-avoiding connected. We consider the fraction of vertices contained in color-avoiding connected components of a given size as well as the fraction of vertices contained in the giant color-avoiding connected component. Under some mild assumptions on the color-densities, we prove that these quantities converge and the limits can be expressed in terms of probabilities associated to edge-colored branching process trees. We provide explicit formulas for the limit of the normalized size of the giant color-avoiding connected component, and in the two-colored case we also provide explicit formulas for the limit of the fraction of vertices contained in color-avoiding connected components of a given size. Copyright © 2022, The Authors. All rights reserved.

关键词： Color

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Proton reconstruction with the TOTEM roman pot detectors for high-β∗ LHC data

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Journal of Instrumentation 2025年第4期20卷 P04012-P04012页

作者： Hayrapetyan, A. Tumasyan, A. Adam, W. Andrejkovic, J.W. Benato, L. Bergauer, T. Chatterjee, S. damanakis, K. dragicevic, M. Hussain, P.S. Jeitler, M. Krammer, N. Li, A. Liko, d. Mikulec, I. Schieck, J. Schöfbeck, r. Schwarz, d. Sonawane, M. Waltenberger, W. Wulz, C.-E. Janssen, T. Van Laer, T. Van Mechelen, P. Breugelmans, N. d'Hondt, J. dansana, S. de Moor, A. delcourt, M. Heyen, F. Lowette, S. Makarenko, I. Müller, d. Tavernier, S. Tytgat, M. Van Onsem, G.P. Van Putte, S. Vannerom, d. Bilin, B. Clerbaux, B. das, A.K. de Bruyn, I. de Lentdecker, G. Evard, H. Favart, L. Gianneios, P. Jaramillo, J. Khalilzadeh, A. Khan, F.A. Lee, K. Malara, A. Paredes, S. Shahzad, M.A. Thomas, L. Vanden Bemden, M. Vander Velde, C. Vanlaer, P. de Coen, M. dobur, d. Gokbulut, G. Hong, Y. Knolle, J. Lambrecht, L. Marckx, d. Mota Amarilo, K. Skovpen, K. Van den Bossche, N. van der Linden, J. Wezenbeek, L. Benecke, A. Bethani, A. Bruno, G. Caputo, C. de Favereau de Jeneret, J. delaere, C. donertas, I.S. Giammanco, A. Guzel, A.O. Jain, Sa Lemaitre, V. Lidrych, J. Mastrapasqua, P. Tran, T.T. Alves, G.A. Coelho, E. Correia Silva, G. Hensel, C. Menezes de Oliveira, T. Mora Herrera, C. rebello Teles, P. Soeiro, M. Vilela Pereira, A. Aldá, W.L. Barroso Ferreira Filho, M. Brandao Malbouisson, H. Carvalho, W. Chinellato, J. da Costa, E.M. da Silveira, G.G. de Jesus damiao, d. Fonseca de Souza, S. Gomes de Souza, r. Laux Kuhn, T. Macedo, M. Martins, J. Mundim, L. Nogima, H. Pinheiro, J.P. Santoro, A. Sznajder, A. Yerevan State University Yerevan Armenia TU Wien Vienna Austria Ghent University Ghent Belgium Universidade do Estado do Rio de Janeiro Rio de Janeiro Brazil Universidade Estadual de Campinas Campinas Brazil Federal University of Rio Grande do Sul Porto Alegre Brazil University of Chinese Academy of Sciences Beijing China China Center of Advanced Science and Technology Beijing China Texas A & M University at Qatar Doha Qatar China Spallation Neutron Source Guangdong China Imperial College London United Kingdom University of Shanghai for Science and Technology Shanghai China Northeastern University BostonMA United States CERN Switzerland Zewail City of Science and Technology Zewail Egypt British University in Egypt Cairo Egypt Institute of Nuclear Physics The Uzbekistan Academy of Sciences Tashkent Uzbekistan Purdue University West LafayetteIN United States Université de Haute Alsace Mulhouse France Istinye University Istanbul Turkey Tbilisi State University Tbilisi Georgia The University of the State of Amazonas Manaus Brazil University of Hamburg Hamburg Germany RWTH Aachen University III. Physikalisches Institut A Aachen Germany Wuppertal Germany Brandenburg University of Technology Cottbus Germany Forschungszentrum Jülich Juelich Germany CERN European Organization for Nuclear Research Geneva Switzerland HUN-REN ATOMKI - Institute of Nuclear Research Debrecen Hungary Bucharest Romania MTA-ELTE Lendület CMS Particle and Nuclear Physics Group Eötvös Loránd University Budapest Hungary HUN-REN Wigner Research Centre for Physics Budapest Hungary Physics Department Faculty of Science Assiut University Assiut Egypt Punjab Agricultural University Ludhiana India University of Visva-Bharati Santiniketan India Bangalore India Amity University Uttar Pradesh Noida India IIT Bhubaneswar Bhubaneswar India Institute of Physics Bhubaneswar India University of Hyderabad Hyderabad India Deutsches Elektronen-Synchrotron Hamburg Germany Isfa

The TOTEM roman pot detectors are used to reconstruct the transverse momentum of scattered protons and to estimate the transverse location of the primary interaction. This paper presents new methods of track reconstruction, measurements of strip-level detection efficiencies, cross-checks of the LHC beam optics, and detector alignment techniques, along with their application in the selection of signal collision events. The track reconstruction is performed by exploiting hit cluster information through a novel method using a common polygonal area in the intercept-slope plane. The technique is applied in the relative alignment of detector layers with μm precision. A tag-and-probe method is used to extract strip-level detection efficiencies. The alignment of the roman pot system is performed through time-dependent adjustments, resulting in a position accuracy of 3 μm in the horizontal and 60 μm in the vertical directions. The goal is to provide an optimal reconstruction tool for central exclusive physics analyses based on the high-β∗ data-taking period at √s = 13 TeV in 2018. © 2025 CErN. Published by IOP Publishing Ltd on behalf of Sissa Medialab.

关键词： calibration and fitting methods cluster finding Pattern recognition Performance of High Energy Physics detectors

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Atomistically enabled nonsingular anisotropic elastic representation of near-core dislocation stress fields in α-iron

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Physical review B 2015年第18期91卷 184102-184102页

作者： dariush Seif Giacomo Po Matous Mrovec Markus Lazar Christian Elsässer Peter Gumbsch Fraunhofer-Institut für Werkstoffmechanik IWM Wöhlerstraße 11 79108 Freiburg Germany University of California Los Angeles 405 Hilgard Avenue Los Angeles California 90095 USA Heisenberg Research Group Department of Physics Darmstadt University of Technology Hochschulstraße 6 D-64289 Darmstadt Germany Institute for Applied Materials (IAM) Karlsruhe Institute of Technology Kaiserstraße 12 76131 Karlsruhe Germany

The stress fields of dislocations predicted by classical elasticity are known to be unrealistically large approaching the dislocation core, due to the singular nature of the theory. While in many cases this is remedied with the approximation of an effective core radius, inside which ad hoc regularizations are implemented, such approximations lead to a compromise in the accuracy of the calculations. In this work an anisotropic nonsingular elastic representation of dislocation fields is developed to accurately represent the near-core stresses of dislocations in α-iron. The regularized stress field is enabled through the use of a nonsingular Green's tensor function of Helmholtz-type gradient anisotropic elasticity, which requires only a single characteristic length parameter in addition to the material's elastic constants. Using a magnetic bond-order potential to model atomic interactions in iron, molecular statics calculations are performed, and an optimization procedure is developed to extract the required length parameter. results show the method can accurately replicate the magnitude and decay of the near-core dislocation stresses even for atoms belonging to the core itself. Comparisons with the singular isotropic and anisotropic theories show the nonsingular anisotropic theory leads to a substantially more accurate representation of the stresses of both screw and edge dislocations near the core, in some cases showing improvements in accuracy of up to an order of magnitude. The spatial extent of the region in which the singular and nonsingular stress differ substantially is also discussed. The general procedure we describe may in principle be applied to accurately model the near-core dislocation stresses of any arbitrarily shaped dislocation in anisotropic cubic media.

关键词： SIdErOPHILE elements HELMHOLTZ equation HELMHOLTZ free energy ANISOTrOPY ELASTIC constants

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Sweeping-TXrF: A nondestructive technique for the entire surface characterization of metal contaminations on semiconductor wafers

Sweeping-TXRF: A nondestructive technique for the entire sur...

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作者： Mori, Yoshihiro Uemura, Kenichi Kohno, Hiroshi Yamagami, Motoyuki Iizuka, Yoshinori R and D/SIMOX Group Siltronic Japan Corporation Yamaguchi 743-0063 Japan Advanced Technology Research Laboratories Nippon Steel Corporation Chiba 293-8511 Japan Application Laboratory Rigaku Industrial Corporation Osaka 569-1146 Japan School of Engineering University of Tokyo Tokyo 113-8656 Japan Japan Society for Analytical Chemistry Japan Society of Applied Physics ISO/Technical Committee 201/Working Group 2 Advanced Technology Research Laboratories Nippon Steel Corporation Futtsu Japan Electrochemical Society of Japan Application Laboratory of Semiconductor Materials Rigaku Industrial Corporation Osaka Application Laboratory Spectroscopical Society of Japan School of Engineering University of Tokyo Deming Prize Committee ISO/TC176 QMS Accreditation Committee Japan Accreditation Board

We propose a new mode of total reflection X-ray fluorescence (TXrF) analysis called "Sweeping-TXrF" for the characterization of wafer surface contaminations in semiconductor manufacturing. Essentially, Sweeping-TXrF is the mapping of an entire surface with a very short data acquisition time for each individual spot. Sweeping-TXrF provides three-dimensional views for individual elements on a wafer in a very short period of time, a method that had never before been achieved by traditional methods. dedicated software for this method was developed and tested, and the results are quite promising for routine contamination characterization. © 2005 IEEE.

关键词： Semiconductor materials

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3He-rich solar energetic particles from sunspot jets

arXiv

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arXiv 2018年

作者： Bučík, radoslav Wiedenbeck, Mark E. Mason, Glenn M. Gómez-Herrero, raúl Nitta, Nariaki V. Wang, Linghua Institut für Astrophysik Georg-August-Universität Göttingen GöttingenD-37077 Germany Max-Planck-Institut für Sonnensystemforschung GöttingenD-37077 Germany Jet Propulsion Laboratory California Institute of Technology PasadenaCA91109 United States Applied Physics Laboratory Johns Hopkins University LaurelMD20723 United States Space Research Group University of Alcalá E-28871 Alcalá de Henares Spain Lockheed Martin Advanced Technology Center Palo AltoCA94304 United States Institute of Space Physics and Applied Technology Peking University Beijing100871 China

Solar sources of suprathermal (−1) 3He-rich solar energetic particles (SEPs) have been commonly associated with jets originating in small, compact active regions at the periphery of near-equatorial coronal holes. Sources of relatively rare, high-energy (>10 MeV nucleon−1) 3He-rich SEPs remain unexplored. Here we present two of the most intense 3He-rich (3He/4He>1) SEP events of the current solar cycle 24 measured on the Advanced Composition Explorer at energy >10 MeV nucleon−1. Although 3He shows high intensities, Z>2 ions are below the detection threshold. The events are accompanied by type-III radio bursts, but no type-II emission as typically seen for suprathermal 3He-rich SEPs. The corresponding solar sources were analyzed using high-resolution, extreme-ultraviolet imaging and photospheric magnetic field observations on the Solar dynamics Observatory. We find the sources of these events associated with jets originating at the boundary of large sunspots with complex βγδ magnetic configuration. Thus, details of the underlying photospheric field apparently are important to produce 3He to high energies in the examined events. Copyright © 2018, The Authors. All rights reserved.

关键词： Solar energy

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Borate glasses for radiation protection: efficiency boost through Nd 2 O 3 and BaO inclusion

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radiation Physics and Chemistry 2025年

作者： M.I. Sayyed Abdel-Gawad Esraa H K.A. Mahmoud Taha A. Hanafy Mayeen Uddin Khandaker M. Elsafi Department of Physics Faculty of Science Isra University Amman Jordan Renewable Energy and Environmental Technology Center University of Tabuk Tabuk 47913 Saudi Arabia Department of Physics and Technical Sciences Western Caspian University Baku Azerbaijan Environmental Studies Department Institute of Graduate Studies and Research 21526 Alexandria University Egypt R&D Office Vice Presidency for Scientific Research and Innovation Imam Abdulrahman Bin Faisal University P.O. Box 1982 Dammam 31441 Saudi Arabia Ural Federal University St. Mira 19 620002 Yekaterinburg Russia Department of Physics Faculty of Science University of Tabuk Tabuk Saudi Arabia Applied Physics and Radiation Technologies Group CCDCU Faculty of Engineering and Technology Sunway University Bandar Sunway 47500 Selangor Darul Ehsan Malaysia Department of Physics College of Science Korea University 145 Anam-ro Seongbuk-gu Seoul 02841 Republic of Korea Faculty of Graduate Studies Daffodil International University Daffodil Smart City Birulia Savar Dhaka 1216 Bangladesh Physics Department Faculty of Science Alexandria University Alexandria 21511 Egypt

This study synthesized a novel borate-based glass matrix and evaluated its radiation attenuation capability. Melt-quenching was used to prepare four glass samples with different concentrations from zinc borate glasses. To increase the glass density and the attenuation performance as a result, neodymium oxide (Nd 2 O 3 ) and barium oxide (BaO) gradually substituted boron oxide (B 2 O 3 ) in the glass network. The well-known narrow beam method was used to experimentally attain the linear attenuation coefficient (LAC), and the results were validated through Phy-X software. There was strong theoretical–experimental data agreement, with less than 7 % deviation at all energy levels. The half value layer (HVL) showed a 56 % drop (from 0.097 to 0.043 cm) at 0.059 MeV and an 18 % drop (from 2.537 to 2.084 cm) at 0.662 MeV, and this difference is all due to the increase in Nd 2 O 3 concentration. The radiation protection efficiency (rPE) results indicate an improvement in the glasses' ability to shield photons with increasing Nd 2 O 3 content since it increased from 23.9 % to 28.3 % at 0.662 MeV and from 18.4 % to 21.4 % at 1.173 MeV as a result of increasing the Nd 2 O 3 content from 2 to 8 mol%.

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Multiple focal structure generation of incident beam in the focal region under tight focusing

Multiple focal structure generation of incident beam in the ...

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International Conference on Newer trends and Innovations in Mechanical Engineering, ICONTIME 2020

作者： Suresh, P. Muthuraman, U. revathi, M. rajesh, K.B. Saravanakumar, U. Jaroszewicz, Z. Dept of ECE Vel Tech Rangarajan Dr Sagunthala R and D Institute of Science and Technology Chennai Tamil Nadu600062 India Dept of EEE Francis Xavier Engineering College Tirunelveli Tamil Nadu627003 India Engineering Department Scientific Society Group Tiruvannamalai Tamil Nadu606805 India Dept of Physics Chikkanna Government Arts College Tiruppur Tamil Nadu641602 India Dept of ECE Muthayammal Engineering College Rasipuram Namakkal Tamil Nadu637408 India Institute of Applied Optics Department of Physical Optics Poland National Institute of Telecommunications Warsaw04894 Poland

The tight focusing investigation on spirally polarized axisymmetric Bessel-modulated Gaussian beam is studied based on vector diffraction theory is presented numerically. The optical intensity distribution of tightly focused through the high NA lens in the focal region is presented numerically for various beam parameter m and spiral parameter C. It is observed that different focal structure is developed in the focal region which finds useful application in the wider range. The focal structure generated in the focal field has wide practical applications like optical scanning microscopy, optical tweezers, optical trapping, etc., the generated multiple focal structure will have useful application. © 2020 Elsevier Ltd. All rights reserved.

关键词： Focusing

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Computational biology in topical bioactive peptide discovery for cosmeceutical application:a concise review

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Biomedical Engineering Communications 2023年第3期2卷 7-15页

作者： Xu-Hui Li Wen-rou Su Fei-Fei Wang Ke Li Jing-Yong Zhu Si-Yu Zhu Si-Ning Kang Cong-Fen He Jun-Xiang Li Xiao Lin AGECODE R&D Center Yangtze Delta Region Institute of Tsinghua UniversityJiaxing 314000China Zhejiang Provincial Key Laboratory of Applied Enzymology Yangtze Delta Region Institute of Tsinghua UniversityJiaxing 314000China Yunnan Botanee Bio-technology Group Co. Ltd.Yunnan 650000China Yunnan Yunke Characteristic Plant Extraction Laboratory Co. Ltd.Yunnan 650000China Shenzhen Accompany Technology Co. LtdShenzhen 518000China College of Life Sciences and Medicine Zhejiang Sci-tech UniversityHangzhou 310018China Harvest Biotech(Zhejiang)Co. Ltd.Jiaxing 314000China School of Beijing Key Lab of Plant Resources Research and Development Beijing Technology and Business UniversityBeijing 100048China School of Life Sciences Northwestern Polytechnical UniversityXi’an 710072China

regenerative medicine and anti-aging research have made great strides at the molecular and cellular levels in dermatology and the medical aesthetic field,targeting potential treatments with skin therapeutic and intervention pathways,which make it possible to develop effective skin regeneration and repair *** the rapid development of computational biology,bioinformatics as well as artificial intelligence(A.I.),the development of new ingredients for regenerative medicine has been greatly accelerated,and the success rate has been *** application cases have appeared in topical skin regeneration and repair *** review will briefly introduce the application of bioactive peptides in skin repair and anti-aging as emerging ingredients in cosmeceutics and emphasize how *** computational biology technology may accelerate the development of innovative peptide molecules and ultimately translate them into potential skin regenerative and anti-aging ***,two research routines have been summarized and current limitations as well as directions were discussed for border applications in future research.

关键词： computational biology artificial intelligence cosmeceutical bioactive peptide regenerative medicine

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THE INTErIOr OF rANdOMLY PErTUrBEd SELF-SIMILAr SETS ON THE LINE

arXiv

引用

arXiv 2023年

作者： dekking, Michel Simon, Károly Székely, Balázs Szekeres, Nóra CWI Amsterdam and Delft Institute of Applied Mathematics Technical University of Delft Netherlands Department of Stochastics Budapest University of Technology and Economics MTA-BME Stochastics Research Group Budapest University of Technology and Economics Műegyetem rkp. 3 BudapestH-1111 Hungary Alfréd Rényi Institute Hungary Department of Stochastics Budapest University of Technology and Economics B.O.box 91 H-1529 Hungary

Can we find a self-similar set on the line with positive Lebesgue measure and empty interior? Currently, we do not have the answer for this question for deterministic self-similar sets. In this paper we answer this question negatively for random self-similar sets which are defined with the construction introduced in the paper Jordan, Pollicott and Simon (Commun. Math. Phys., 2007). For the same type of random self-similar sets we prove the Palis-Takens conjecture which asserts that at least typically the algebraic difference of dynamically defined Cantor sets is either large in the sense that it contains an interval or small in the sense that it is a set of zero Lebesgue *** Codes Primary 28A80 Secondary 60J80, 60J85 © 2023, CC BY.

关键词： Fractals

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Nonlinear decay of quantum confined magnons in itinerant ferromagnets

arXiv

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arXiv 2021年

作者： Lori, Khalil Zakeri Hjelt, A. Maznichenko, I.V. Buczek, P. Ernst, A. Heisenberg Spin-dynamics Group Physikalisches Institut Karlsruhe Institute of Technology Wolfgang-Gaede-Str. 1 KarlsruheD-76131 Germany Department of Engineering and Computer Sciences Hamburg University of Applied Sciences Berliner Tor 7 HamburgD-20099 Germany Institute for Theoretical Physics Johannes Kepler University Altenberger Str. 69 LinzA-4040 Austria Max-Planck-Institut für Mikrostrukturphysik Weinberg 2 HalleD-06120 Germany

Quantum confinement leads to the emergence of several magnon modes in ultrathin layered magnetic structures. We probe the lifetime of these quantum confined modes in a model system composed of three atomic layers of Co grown on different surfaces. We demonstrate that the quantum confined magnons exhibit nonlinear decay rates, which strongly depend on the mode number, in sharp contrast to what is assumed in the classical dynamics. Combining the experimental results with those of linear-response density functional calculations we provide a quantitative explanation for this nonlinear damping effect. The results provide new insights into the decay mechanism of spin excitations in ultrathin films and multilayers and pave the way for tuning the dynamical properties of such structures. Copyright © 2021, The Authors. All rights reserved.

关键词： Ultrathin films

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