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arXiv 2024年

作者： Bistroń, Rafal Hontarenko, Mykhailo Życzkowski, Karol Institute of Theoretical Physics Faculty of Physics Astronomy and Applied Computer Science Jagiellonian University ul. Lojasiewicza 11 Kraków30-348 Poland Doctoral School of Exact and Natural Sciences Jagiellonian University ul. Lojasiewicza 11 Kraków30-348 Poland Polish Academy of Sciences Al. Lotników 32/46 Warszawa02-668 Poland

We introduce a tensor network designed to faithfully simulate the AdS/CFT correspondence, akin to the multi-scale entanglement renormalization ansatz (MERA), following hyper-invariant tensor network. The proposed construction integrates bulk indices within the network architecture to uphold the key features of the HaPPY code, including complementary recovery. This framework accurately reproduces the boundary conformal field theory's (CFT) two- and three-point correlation functions, while considering the image of any bulk operator. Furthermore, we provide an explicit methodology for calculating the correlation functions in an efficient manner. Our findings highlight the physical aspects of the relation between bulk and boundary within the tensor network models, contributing to the understanding and simulation of holographic principles in quantum information. © 2024, CC BY.

关键词： Tensors

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A Comparative Simulation Study of DG-MOSFETs: PCMS Approach in FETMOSS vs. CMS in Silvaco TCAD 3

A Comparative Simulation Study of DG-MOSFETs: PCMS Approach ...

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3rd Novel Intelligent and Leading Emerging sciences Conference, NILES 2021

作者： Salem, Marwa S. El-Banna, Mohamed Abouelatta, Mohamed Saeed, Ahmed Shaker, Ahmed University of Ha'il Department of Computer Engineering Computer Science and Engineering College Ha'il Saudi Arabia Ain Shams University Engineering Physics and Mathematics Department Faculty of Engineering Cairo Egypt Ain Shams University Electronics and Communication Department Faculty of Engineering Cairo Egypt Future University in Egypt Electrical Engineering Department Faculty of Engineering and Technology Cairo Egypt

ISBN: (纸本)9781665421577

The simulation of quantum transport in DG-MOSFETs could be effectively accomplished by the Partial-Coupled Mode Space (PCMS) approach, which is realized by separating the odd and even modes solutions. This technique combines the merits of Coupled Mode Space (CMS) regarding the accuracy and Uncoupled Mode Space (UMS) as far as reducing computational time is concerned. In this work, a comparison study between PCMS using our developed FETMOSS simulator and CMS using Silvaco TCAD is carried out. The simulation is performed on a set of short-channel DG-MOSFETs. The accuracy at room temperature is found to be less than 8% along the whole range of the supply voltage. Based on this study, the PCMS approach in FETMOSS simulator is validated and proved to trace device performance in reasonable times compared to the TCAD high computational times. © 2021 IEEE.

关键词： MOSFET devices

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applied whispering gallery modes on ZnO nanorods coated glass for humidity sensing application

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Optoelectronics Letters 2021年第5期17卷 298-301页

作者： Mohd Hafiz Jali Hazli Rafis Abdul Rahim Md Ashadi Md Johari Maslinda Mat Sharif Siti Halma Johari Siddharth Thokchom Habibah Mohamed Moh Yasin Sulaiman Wadi Harun Department of Electrical Engineering University of MalayaKuala Lumpur50603Malaysia Faculty of Electrical Engineering Universiti Teknikal Malaysia MelakaMelaka76100Malaysia Faculty of Electronic and Computer Engineering Universiti Teknikal Malaysia MelakaMelaka76100Malaysia Faculty of Electrical and Electronic Engineering Technology Universiti Teknikal Malaysia MelakaMelaka76100Malaysia School of Technology Assam Don Bosco UniversityGuwahatiAssam781017India Malaysia-Japan International Institute of Technology Universiti Teknologi MalaysiaKuala Lumpur54100Malaysia Department of Physics Faculty of Science and TechnologyAirlangga UniversitySurabayaIndonesia

In this letter,a humidity sensor is demonstrated by applying a whispering gallery mode(WGM)from a microsphere resonator onto the ZnO nanorods coated glass *** diameter of the microsphere was 234μm and the glass surface was coated with ZnO nanorods using the hydrothermal method at growth duration of 12 h.A significant response to humidity level ranging from 35%RH to 85%RH has been observed with the sensitivity of 0.0142 nm/%*** proposed humidity sensor has successfully employed to enhance interaction between the whispering gallery mode evanescent and surrounds analyte with the assistance of ZnO nanorods coated glass.

关键词： WGM ZnO applied whispering gallery modes on ZnO nanorods coated glass for humidity sensing application

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A novel cascade heat integration configuration for electricity/freshwater/hydrogen outputs using SOFC-GT, multi-effect desalination, and PEM electrolysis using machine learning optimization

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Case Studies in Thermal Engineering 2025年 72卷

作者： Zuo, Zhaoyang Wang, Junhua Samad, Sarminah Othman, Nashwan Adnan Almadhor, Ahmad Ghandour, Raymond Alsayer, Ibrahim A Abduvalieva, Dilsora Alkhalaf, Salem Babiker, Samah G. School of Mechanical Engineering Xijing University Shaanxi Xi'an710123 China School of Computer Science South China Business College Guangdong University of Foreign Studies Gangzhou Guangdong510545 China Department of Management College of Business Administration Princess Nourah Bint Abdulrahman University Riyadh 11671 Saudi Arabia Department of Computer Engineering College of Engineering Knowledge University Erbil44001 Iraq Department of Computer Engineering Al-Kitab University Altun Kupri Iraq Department of Computer Engineering and Networks College of Computer and Information Sciences Jouf University Saudi Arabia College of Engineering and Technology American University of the Middle East Egaila54200 Kuwait Department of Chemical and Materials Engineering Engineering College Northern Border University Arar91431 Saudi Arabia Department of Mathematics and Information Technologies Tashkent State Pedagogical University Bunyodkor avenue 27 Tashkent100070 Uzbekistan Department of Computer Engineering College of Computer Qassim University Buraydah Saudi Arabia Department of Electronic Physics Faculty of Applied Science Red Sea University Port Sudan Sudan

The current study presents an innovative integrated multi-generation system tailored for residential communities based on a novel cascade heat integration configuration. The proposed system is designed for scalability, making it adaptable for various residential communities, from small housing complexes to larger urban developments. Its modular architecture allows flexible integration with existing infrastructure, enabling widespread deployment in diverse geographic and economic conditions. Utilizing a real-Time machine learning framework, the system dynamically optimizes energy distribution and operational efficiency, making it feasible for large-scale implementation while maintaining economic viability and environmental benefits. Hence, a real-Time machine learning framework is implemented to optimize key operational parameters dynamically, ensuring efficient fuel utilization, energy distribution, and load balancing across the system. The ML model continuously processes sensor data to adjust SOFC current density, GT pressure ratio, and ORC steam pressure, maximizing exergy efficiency while minimizing operational costs and CO2 emissions. Additionally, it enhances system reliability through predictive maintenance and demand-based power allocation, enabling a more adaptive and cost-effective multi-generation process. Noteworthy outcomes highlight an exergy efficiency improvement from 48 % to 60 % and a power output increase from 6.1 MW to 11.6 MW. Additionally, the levelized cost of electricity is notably reduced from 8 to 3 cents/kWh. The system also provides extra benefits by generating freshwater and hydrogen, addressing various societal challenges. © 2025 The Authors.

关键词： Predictive maintenance

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Assessment of Biocidal Properties of Nanometric Zinc Films Obtained by Sol-Gel Method

SSRN

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SSRN 2024年

作者： Dulian, Piotr Stodolak-Zych, Ewa Nosidlak, Natalia Kluska, Stanislawa Szymczak, Patryk Rapacz-Kmita, Alicja Jaglarz, Janusz Jurzecka-Szymacha, Maria Faculty of Chemical Engineering and Technology Cracow University of Technology Warszawska Street 24 Krakow31-155 Poland Faculty of Materials Science and Ceramics AGH University of Krakow Mickiewicza Av. 30 Krakow30-059 Poland Department of Physics Cracow University of Technology Podchorążych Street 1 Krakow30-084 Poland Academic Centre for Materials and Nanotechnology Kawiory Street 30 Krakow30-055 Poland Institute of Materials Engineering Cracow University of Technology Jana Pawla II Av. 37 Krakow31-864 Poland

The microbiocidal properties of zinc in both elemental and oxide forms are well known. In this paper, a sol-gel was used to form nanometric ZnO layers (40-150nm) on glass substrate. A series of layers of differing in the number of dips (3/6) and the number of heat treatment cycles (773K/1h) were prepared. The first group of prepared layers was annealed after each immersion (x), the second group was annealed once - after all immersions (x*).The obtained layers were characterized in terms of phase composition by X-ray diffraction (XRD) and surface morphology by atomic force microscopy (AFM) and electron scanning microscopy (SEM). The thickness of the layer and its homogeneity were determined by spectroscopic ellipsometry (SE). It was shown that the size of crystallites and the thickness strongly depends on the thermal treatment sequence used;for the layers fixed each time it is in range (18-28nm), for the layers annealed once it is (10-13nm).The presence of crystallites of varying size affects the roughness and wettability of the layer, as well as its bactericidal properties. The obtained layers induce biofilm reduction while maintaining a high degree of translucency, which allows their practical application as a layers for touchscreens, packaging or photovoltaic cells. © 2024, The Authors. All rights reserved.

关键词： Sol-gel process

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Time-adjusted analysis shows weak associations between BCG vaccination policy and COVID-19 disease progression 21

Time-adjusted analysis shows weak associations between BCG v...

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21st Conference Information Technologies - Applications and Theory, ITAT 2021

作者： Bod’ová, Katarína Boža, Vladimír Brejová, Broňa Kollár, Richard Mikušová, Katarína Vinař, Tomáš Department of Mathematical Analysis and Numerical Mathematics Faculty of Mathematics Physics and Informatics Comenius University Mlynská dolina Bratislava842 48 Slovakia Department of Applied Informatics Faculty of Mathematics Physics and Informatics Comenius University Mlynská dolina Bratislava842 48 Slovakia Department of Computer Science Faculty of Mathematics Physics and Informatics Comenius University Mlynská dolina Bratislava842 48 Slovakia Department of Applied Mathematics and Statistics Faculty of Mathematics Physics and Informatics Comenius University Mlynská dolina Bratislava842 48 Slovakia Department of Biochemistry Faculty of Natural Sciences Comenius University Ilkovičova 6 Bratislava842 48 Slovakia

In this study, we ascertain the associations between BCG vaccination policies and the disease progression in the initial phases of COVID-19 pandemics through analysis of various time-adjusted indicators either directly extracted from the incidence and death reports, or estimated as parameters of disease progression models. We observe weak correlation between BCG vaccination status and indicators related to disease reproduction characteristics. We did not find any associations with case fatality rates (CFR), but the differences in CFR estimates were likely dominated by differences in testing and case reporting between countries. Copyright © 2021 for this paper by its authors.

关键词： Cell proliferation

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An Omnidirectional Antenna with Dual-Gain and High-Gain for WiFi-6 Applications

An Omnidirectional Antenna with Dual-Gain and High-Gain for ...

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IEEE International Conference on Electronic Information and Communication technology (ICEICT)

作者： Haolin Wang Botao Feng Xiao Ding Li Deng Sanshan Sun Wenzhe Gu College of Electronics and Information Engineering Shenzhen University Shenzhen China Faculty of Humanities and Arts Macau University of Science and Technology Macau China College of Information and Communication Engineering Beijing University of Posts and Telecommunications Beijing China College of Physics and Electronic Engineering Sichuan Normal University Sichuan China School of Computer Science and Engineering Huizhou University Huizhou China

This letter proposes a high-gain omnidirectional antenna with dual-band for WiFi-5/WiFi -6 applications. The antenna is basically comprised of several slotted semi-circular radiation patches, L-shaped branch structure patches and coaxial feed sources. Here, symmetrical rectangular slots are used to increase impedance matching. The planar size of antenna is 12×35 mm 2 , which is much smaller than other dual-band WIFI antennas. The simulated results tell that the antenna can be used at 2.4~2.485 GHz and 5.15~5.85 GHz (|S11|

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Excited oscillons and charge-swapping

arXiv

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arXiv 2025年

作者： Alonso-Izquierdo, A. Canillas Martínez, D. Romańczukiewicz, T. Sl̷awińska, K. Wereszczyński, A. Departamento de Matemática Aplicada University of Salamanca Casas del Parque 2 Salamanca37008 Spain IUFFyM University of Salamanca Plaza de la Merced 1 Salamanca37008 Spain Faculty of Theoretical Physics Astronomy and Applied Computer Science Jagiellonian University Kraków Poland Higashi-Hiroshima 1-3-1 Kagamiyama Hiroshima739-8526 Japan

We show that the charge-swapping phenomenon can be understood as a real valued oscillon carrying an excitation in imaginary direction in the target space. Furthermore, we introduce a two dimensional collective model w... 详细信息

关键词： Dynamics

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Recent advances in photonics of threedimensional Dirac semimetal Cd_(3)As_(2)

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Advanced Photonics Nexus 2022年第2期1卷 1-19页

作者： Renlong Zhou Kaleem Ullah Naveed Hussain Mohammed M.Fadhali Sa Yang Qiawu Lin Muhammad Zubair Muhammad Faisal Iqbal Guangdong University of Education School of Physics and Information EngineeringGuangzhouChina University of Delaware Department of Electrical and Computer EngineeringNewarkDelawareUnited States University of California Department of Electrical Engineering and Computer ScienceIrvineCaliforniaUnited States Jazan University Faculty of ScienceDepartment of PhysicsJazanSaudi Arabia Ibb University Faculty of ScienceDepartment of PhysicsIbbYemen Institute of Energy and Climate Research Materials Synthesis and Processing(IEK-1)Forschungszentrum Jülich GmbHJülichGermany University of Science and Technology of China Hefei National Laboratory for Physical Sciences at the MicroscaleHefeiChina Riphah International University Faisalabad Department of PhysicsFaisalabadPakistan

Due to their unusual features in condensed matter physics and their applicability in optical and optoelectronic applications,three-dimensional Dirac semimetals(3D DSMs)have garnered substantial interest in recent *** contrast to monolayer graphene,3D DSM exhibits linear band dispersion despite its macroscopic ***,being a bulk material,it is easy to make nanostructures with 3D DSM,just as one normally does with metals such as gold and *** 3D DSMs,cadmium arsenide(Cd_(3)As_(2))is quite famous and considered an excellent 3D DSM due to its chemical stability in air and extraordinary optical *** this review,advances in 3D DSM Cd_(3)As_(2)fabrication techniques and recent progress in the photonics of 3D DSM Cd_(3)As_(2)are given and briefly *** photonic features,including linear and nonlinear plasmonics,optical absorption,optical harmonic generation,and ultrafast dynamics,have been explored in *** is expected that Cd_(3)As_(2)would share an excellent tunable photonic response like *** envision that this article may serve as a concise overview of the recent progress of photonics in 3D DSM Cd_(3)As_(2)and provides a compact reference for young researchers.

关键词： Three-dimensional Dirac semimetal Cd_(3)As_(2) photonics tunable nanostructures

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Magnetization Reversal in Fe(001) Films Grown by Magnetic Field Assisted Molecular Beam Epitaxy

SSRN

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SSRN 2023年

作者： Blyzniuk, Bohdana Dziwoki, Adam Freindl, Kinga Koziol-Rachwal, Anna Madej, Ewa Mlyńczak, Ewa Szpytma, Marcin Wilgocka-Ślezak, Dorota Korecki, Józef Spiridis, Nika Jerzy Haber Institute of Catalysis and Surface Chemistry Polish Academy of Sciences Niezapominajek 8 Krakow30-239 Poland PREVAC sp. z o.o. Raciborska Str. 61 Rogów44-362 Poland AGH University of Krakow Faculty of Physics and Applied Computer Science al. Mickiewicza 30 Kraków30-059 Poland

We studied the influence of a magnetic field (MF) on epitaxial growth and magnetic properties of Fe(001) films deposited on MgO(001). Thanks to modular sample holders and a specialized manipulator in our multi-chamber ultrahigh vacuum system, the films could be deposited and annealed in an in-plane MF of 100 mT. In situ scanning tunnelling microscopy showed that MF had a strong influence on the film morphology, and, in particular, on the structure of surface steps. The magnetic properties were studied ex situ using magneto-optic Kerr effect (MOKE) magnetometry and microscopy. We showed that the moderate in-plane magnetic field applied during growth has the visible impact on the magnetic properties. The observed angular dependence of the MOKE loops and domain structures were discussed based on a magnetization reversal model. © 2023, The Authors. All rights reserved.

关键词： Magnetization reversal

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