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Lyapunov-type inequality for a fractional boundary value problem with natural conditions

SeMA Journal 2018年第1期75卷 157-162页

作者： Guezane-Lakoud, Assia Khaldi, Rabah Torres, Delfim F. M. Laboratory of Advanced Materials Department of Mathematics Badji Mokhtar-Annaba University P.O. Box 12 Annaba 23000 Algeria Department of Mathematics Center for Research and Development in Mathematics and Applications (CIDMA) University of Aveiro Aveiro 3810-193 Portugal

We derive a new Lyapunov type inequality for a boundary value problem involving both left Riemann–Liouville and right Caputo fractional derivatives in presence of natural conditions. Application to the corresponding ... 详细信息

关键词： Eigenvalue problem Fractional calculus Lyapunov inequality

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SO(2) gauged Skyrmions in 4 + 1 dimensions

arXiv

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arXiv 2020年

作者： Navarro-Lérida, Francisco Radu, Eugen Tchrakian, D.H. Departamento de Física Teórica and IPARCOS Ciencias Físicas Universidad Complutense de Madrid MadridE-28040 Spain Departamento de Matemática da Universidade de Aveiro Center for Research and Development in Mathematics and Applications Campus de Santiago Aveiro3810-183 Portugal School of Theoretical Physics Dublin Institute for Advanced Studies 10 Burlington Road Dublin 4 Ireland Department of Computer Science NUI Maynooth Maynooth Ireland

We study the simplest SO(2) gauged O(5) Skyrme models in 4 + 1 (flat) dimensions. In the gauge decoupled limit, the model supports topologically stable solitons (Skyrmions) and after gauging, the static energy of the solutions is bounded from below by a "baryon number". The studied model features both Maxwell and Maxwell–Chern-Simons dynamics. The considered configurations are subject to bi-azimuthal symmetry in the R4 subspace resulting in a two dimensional subsystem, as well as subject to an enhanced symmetry relating the two planes in the R4 subspace, which results in a one dimensional subsystem. Numerical solutions are constructed in both cases. In the purely magnetic case, fully bi-azimuthal solutions were given, while electrically charged and spinning solutions were constructed only in the radial (enhanced symmetric) case, both in the presence of a Chern-Simons term, and in its absence. We find that, in contrast with the analogous models in 2+1 dimensions, the presence of the Chern-Simons term in the model under study here results only in quantitative effects. Copyright © 2020, The Authors. All rights reserved.

关键词： Topology

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SO(2) gauged Skyrmions in 4+1 dimensions

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Physical Review D 2020年第12期101卷 125014-125014页

作者： Francisco Navarro-Lérida Eugen Radu D. H. Tchrakian Departamento de Física Teórica and IPARCOS Ciencias Físicas Universidad Complutense de Madrid E-28040 Madrid Spain Departamento de Matemática da Universidade de Aveiro and Center for Research and Development in Mathematics and Applications Campus de Santiago 3810-183 Aveiro Portugal School of Theoretical Physics Dublin Institute for Advanced Studies 10 Burlington Road DO4C932 Dublin 4 Ireland Ireland Department of Computer Science NUI Maynooth U23F2H6 Maynooth Ireland Ireland

We study the simplest SO(2) gauged O(5) Skyrme model in 4+1 (flat) dimensions. In the gauge decoupled limit, the model supports topologically stable solitons (Skyrmions) and after gauging, the static energy of the solutions is bounded from below by a “baryon number.” The studied model features both Maxwell and Maxwell–Chern-Simons dynamics. The considered configurations are subject to biazimuthal symmetry in the R4 subspace resulting in a two dimensional subsystem, as well as subject to an enhanced symmetry relating the two planes in the R4 subspace, which results in a one dimensional subsystem. Numerical solutions are constructed in both cases. In the purely magnetic case, fully biazimuthal solutions were given, while electrically charged and spinning solutions were constructed only in the radial (enhanced symmetric) case, both in the presence of a Chern-Simons term, and in its absence. We find that, in contrast with the analogous models in 2+1 dimensions, the presence of the Chern-Simons term in the model under study here results only in quantitative effects.

关键词： Classical solutions in field theory Higher-dimensional field theories

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1T/2H-MoS 2 @Zn-Ni MOF composite: A novel catalyst for efficient hydrogen production and antimicrobial activity

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Journal of Water Process Engineering 2025年 75卷

作者： Asma Tab Chemseddin Belabed Abdelkadir Mahieddine Mohamed Mehdi Kaci Khaled Derkaoui Abdelmounaim Chetoui Muneera S.M. Al-Saleem Adel Khen Leila Adnane-Amara Mahmut Özacar Toufik Hadjersi Amjad E. Alsafrani Mohamed Trari Claire Richard Jehan Y. Al-Humaidi Mohammed M. Rahman Laboratory of Chromatography Faculty of Chemistry USTHB BP 32 16111 Algiers Algeria Laboratory of Materials Physics Faculty of Physics USTHB BP 32 16111 Algiers Algeria Laboratory of Electrochemistry-Corrosion Metallurgy and Inorganic Chemistry Faculty of Chemistry University of Sciences and Technology Houari Boumediene (USTHB) BP 32 16111 Algiers Algeria Laboratory of Reaction Engineering Faculty of Mechanical and Process Engineering (USTHB) BP 32 16111 Algiers Algeria Centre de Développement des Technologies Avancées Alger Baba Hassen Algeria Research Center in Semiconductors Technology for Energetics (CRTSE) 02 Ave du Docteur Frantz Fanon 7-Merveilles Algiers Algeria Department of Chemistry College of Science Princess Nourah Bint Abdulrahman University P.O. BOX 84428 Riyadh 11671 Saudi Arabia Sakarya University Biomaterials Energy Photocatalysis Enzyme Technology Nano and Advanced Materials Additive Manufacturing Environmental Applications and Sustainability research and Development group (Sakarya 54187) Turkey Department of Chemistry College of Science University of Jeddah Jeddah Saudi Arabia Laboratory of Storage and Valorization of Renewable Energies Faculty of Chemistry University of Sciences and Technology Houari Boumediene (USTHB) BP 32 16111 Algiers Algeria Université Clermont Auvergne CNRS SIGMA Clermont ICCF F-63000 Clermont-Ferrand France Center of Excellence for Advanced Materials Research (CEAMR) & Chemistry department Faculty of Science King Abdulaziz University Jeddah 21589 Saudi Arabia

To address the energy crisis and produce green hydrogen, researchers have developed highly efficient devices employing catalyst for water splitting. Herein, we explored the synthesis and photocatalytic efficiency of a novel 1 T/2H-MoS 2 @Zn-Ni MOF composite, which was hydrothermally prepared by integrating 1 T/2H-MoS 2 with Zn Ni MOF, and assessed its H 2 generation and antibacterial activity. Characterization techniques, such as X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), Energy Dispersive X-ray spectroscopy (EDX), FTIR, and Raman spectroscopy, confirmed the successful formation and structural integrity of the composite. The photocatalytic performance of the resulting 1 T/2H-MoS 2 @Zn-Ni MOF demonstrated an optimal H 2 generation of roughly 250.09 μmol at pH⁓ 6.8 and in the presence of S 2 O 3 2− , which was 1373-fold higher than that of 1 T/2H-MoS 2 after 30 min of exposure to light. The remarkable efficacy of the designed photocatalyst can be credited to its ability to use visible light and boost charge segregation among the constituents promoted by S-scheme heterojunctions. Also, the stability of the sample was evaluated throughout 4 straight uses. Furthermore, the synthesized materials demonstrated varying antibacterial activities, displaying growth inhibition zones against S. aureus but not against E. coli , indicating greater resistance in the latter. These findings suggest that the 1 T/2H-MoS 2 @Zn-Ni MOF composite possesses significant selective antibacterial behavior owing to the generation of reactive oxygen species (ROS) and inhibition of bacterial proliferation. In synopsis, owing to its simplified manufacturing process and remarkable effectiveness, the manufactured 1 T/2H-MoS 2 @Zn-Ni MOF composite demonstrated promising photocatalytic capacity for H 2 generation and preliminary, selective antibacterial activity. This suggests that the 1 T/2H-MoS 2 @Zn-Ni MOF is a multifunctional material suitable for a wide array of energy and environ

关键词： Antimicrobial activity Metal-organic frameworks Novel 1 T/2H-MoS2@Zn-Ni MOF Photocatalysis hydrogen production Photocatalyst

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Synergy of Binary Substitutions for Improving the Cycle Performance in LiNiO2 Revealed by Ab Initio Materials Informatics

arXiv

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arXiv 2020年

作者： Yoshida, Tomohiro Maezono, Ryo Hongo, Kenta Department of Computer-Aided Engineering and Development Sumitomo Metal Mining Co. Ltd. 3-5 Sobiraki-cho NiihamaEhime792-0001 Japan School of Information Science JAIST Asahidai 1-1 IshikawaNomi923-1292 Japan Computational Engineering Applications Unit RIKEN 2-1 Hirosawa SaitamaWako351-0198 Japan Research Center for Advanced Computing Infrastructure JAIST Asahidai 1-1 NomiIshikawa923-1292 Japan Center for Materials Research by Information Integration Research and Services Division of Materials Data and Integrated System National Institute for Materials Science 1-2-1 Sengen TsukubaIbaraki305-0047 Japan PRESTO Japan Science and Technology Agency 4-1-8 Honcho SaitamaKawaguchi-shi322-0012 Japan

We explore LiNiO2-based cathode materials with two-element substitutions by an ab initio simulation based materials informatics (AIMI) approach. According to our previous study, a higher cycle performance strongly correlates with less structural change during charge–discharge cycles;the latter can be used for evaluating the former. However, if we target the full substitution space, full simulations are infeasible even for all binary combinations. To circumvent such an exhaustive search, we rely on Bayesian optimization. Actually, by searching only 4% of all the combinations, our AIMI approach discovered two promising combinations, Cr-Mg and Cr-Re, whereas each atom itself never improved the performance. We conclude that the synergy never emerges from a common strategy restricted to combinations of "good" elements that individually improve the performance. In addition, we propose a guideline for the binary substitutions by elucidating the mechanism of crystal structure change. Copyright © 2020, The Authors. All rights reserved.

关键词： Binary alloys

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13.3: A new pixel structure for OLEDoS micro-display

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SID Symposium Digest of Technical Papers 2019年第S1期50卷

作者： Aiying Guo Feng Ran Jianhua Zhang Microelectronic Research and Development Center Shanghai China Key Laboratory of Advanced Display and System Applications Ministry of Education Shanghai China

In this paper, we propose a new pixel structure for the organic Light Emitting Diode (OLED) 0.65 inch SVGA resolution micro-display with 8 bit gray level. The proposed pixel structure is composed of 4 MOSFETS and one capacitor to integrate the pixel structure in the restricted pixel area (9um×9um) using 0.18um technology. The simulation result shows that the maximum error of emission current occurs at high gray level.

关键词： OLEDoS Micro-display Pixel structure SVGA MONSFET

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Spatial mapping of protein composition and tissue organization: A primer for multiplexed antibody-based imaging

arXiv

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arXiv 2021年

作者： Hickey, John W. Neumann, Elizabeth K. Radtke, Andrea J. Camarillo, Jeannie M. Beuschel, Rebecca T. Albanese, Alexandre McDonough, Elizabeth Hatler, Julia Wiblin, Anne E. Fisher, Jeremy Croteau, Josh Small, Eliza C. Sood, Anup Caprioli, Richard M. Angelo, R. Michael Nolan, Garry P. Chung, Kwanghun Hewitt, Stephen M. Germain, Ronald N. Spraggins, Jeffrey M. Lundberg, Emma Snyder, Michael P. Kelleher, Neil L. Saka, Sinem K. Department of Pathology Stanford University School of Medicine StanfordCA94305 United States Department of Biochemistry Vanderbilt University NashvilleTN37232 United States Mass Spectrometry Research Center Vanderbilt University NashvilleTN37232 United States Lymphocyte Biology Section Center for Advanced Tissue Imaging Laboratory of Immune System Biology NIAID NIH BethesdaMD20892 United States Department of Chemistry Molecular Biosciences The National Resource for Translational and Developmental Proteomics Northwestern University EvanstonIL60208 United States Institute for Medical Engineering and Science MIT CambridgeMA United States Picower Institute for Learning and Memory MIT CambridgeMA United States GE Research NiskayunaNY12309 United States Antibody Development Department Bio-techne MinneapolisMN55413 United States Department of Research and Development Abcam PLC Cambridge Biomedical Campus Discovery Drive CambridgeCB2 0AX United Kingdom Department of Research and Development Cell Signaling Technology Inc. DanversMA01923 United States Department of Applications Science BioLegend San DiegoCA92121 United States Thermo Fisher Scientific RockfordIL United States Department of Chemistry Vanderbilt University NashvilleTN37232 United States Department of Chemical Engineering MIT CambridgeMA United States Department of Brain and Cognitive Sciences MIT CambridgeMA United States Seoul Korea Republic of Yonsei-IBS Institute Yonsei University Seoul Korea Republic of Laboratory of Pathology Center for Cancer Research National Cancer Institute National Institutes of Health BethesdaMD20892 United States Department of Cell and Developmental Biology Vanderbilt University School of Medicine NashvilleTN37240 United States Science for Life Laboratory School of Engineering Sciences in Chemistry Biotechnology and Health KTH-Royal Institute of Technology Stockholm Sweden Department of Genetics Stanford University School o

Tissues and organs are composed of distinct cell types that must operate in concert to perform physiological functions. Efforts to create high-dimensional biomarker catalogs of these cells are largely based on transcriptomic single-cell approaches that lack the spatial context required to understand critical cellular communication and correlated structural organization. To probe in situ biology with sufficient coverage depth, several multiplexed protein imaging methods have recently been developed. Though these antibody-based technologies differ in strategy and mode of immunolabeling and detection tags, they commonly utilize antibodies directed against protein biomarkers to provide detailed spatial and functional maps of complex tissues. As these promising antibody-based multiplexing approaches become more widely adopted, new frameworks and considerations are critical for training future users, generating molecular tools, validating antibody panels, and harmonizing datasets. In this perspective, we provide essential resources, key considerations for obtaining robust and reproducible imaging data, and specialized knowledge from domain experts and technology developers. Copyright © 2021, The Authors. All rights reserved.

关键词： Antibodies

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Numerical modelling of gas flow in a compact clay barrier for DECOVALEX-2019 2

Numerical modelling of gas flow in a compact clay barrier fo...

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2nd International Discrete Fracture Network Engineering Conference, DFNE 2018

作者： Tamayo-Mas, E. Harrington, J.F. Shao, H. Dagher, E.E. Lee, J. Kim, K. Rutqvist, J. Lai, S.H. Chittenden, N. Wang, Y. Damians, I.P. Olivella, S. British Geological Survey Keyworth Nottingham United Kingdom Federal Institute for Geosciences and Natural Resources Hanover Germany Canadian Nuclear Safety Commission University of Ottawa OttawaON Canada Korea Atomic Energy Research Institute Daejeon Korea Republic of Lawrence Berkeley National Laboratory BerkeleyCA United States Center for Advanced Model Research Development and Applications National Central University Taoyuan Taiwan Quintessa Ltd Henley-on-Thames Oxfordshire United Kingdom Sandia National Laboratories AlbuquerqueNM United States Universitat Politècnica de Catalunya Barcelona Spain

The mechanisms controlling the movement of gases through geological disposal facilities can be described by models accounting for (i) diffusion, (ii) two-phase flow, (iii) localised flow pathways and (iv) gas fracturing of the rock. It is therefore necessary to consider all these phenomena for a better understanding of the processes governing the movement of gases in low permeability materials. The purpose of Task A in the current phase of the development of COupled models and their VALidation against Experiments (DECOVALEX) project is to better understand the processes governing the advective movement of gas. In this paper, a synthesis of the ongoing work of eight participating modelling teams is presented. A wide range of 2D and 3D approaches including (i) continuous strategies assuming different mechanical deformation behaviors, (ii) continuous models with distinct phases or embedded fractures and (iii) discrete models with different formulations are validated against a gas flow test on pre-compacted bentonite undertaken by the British Geological Survey. The results of the ongoing work show that after a calibration process, plausible descriptions of the laboratory experiment can be achieved. Copyright 2018 ARMA.

关键词： Gases

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Correction: Synthesis and characterization of a new ZIF-67@MgAl2O4 nanocomposite and its adsorption behaviour

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RSC advances 2021年第55期11卷 34924页

作者： Mehdi Davoodi Fatemeh Davar Mohammad R Rezayat Mohammad T Jafari Mehdi Bazarganipour Ahmed Esmail Shalan Department of Chemistry Isfahan University of Technology Isfahan 84156-83111 Iran davar@cc.iut.ac.ir. Research Institute for Nanotechnology and Advanced Materials Isfahan University of Technology Isfahan 84156-83111 Iran. BCMaterials Basque Center for Materials Applications and Nanostructures Martina Casiano UPV/EHU Science Park Barrio Sarriena s/n Leioa 48940 Spain a.shalan133@*** ahmed.shalan@***. Central Metallurgical Research and Development Institute (CMRDI) P.O. Box 87 Helwan Cairo 11421 Egypt.

[This corrects the article DOI: 10.1039/D1RA01056E.].

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Steric and energetic studies on the retention of Cd (II) and Zn (II) metal ions into magnesium rich zeolite-A synthesized from natural talc: Experimental and theoretical studies

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Chinese Journal of Analytical Chemistry 2025年第6期53卷

作者： GABER, Walaa SHEHATA, Nabila BIN-JUMAH, May ALLAM, Ahmed A. ZOUBI, Wail Al ABUKHADRA, Mostafa R. Environmental Science and Industrial Development Department Faculty of Postgraduate Studies for Advanced Sciences Beni-Suef University Beni-Suef Egypt Renewable Energy Science and Engineering Department Faculty of Postgraduate Studies for Advanced Sciences Beni-Suef University Beni-Suef62511 Egypt Department of Biology college of Science Princess Nourah bint Abdulrahman University P.O. BOX 84428 Riyadh11671 Saudi Arabia Department of Biology College of Science Imam Mohammad Ibn Saud Islamic University Riyadh11623 Saudi Arabia Materials Electrochemistry Laboratory School of Materials Science and Engineering Yeungnam University Gyeongsan38541 Korea Republic of Applied Science Research Center Applied Science Private University Amman Jordan Materials Technologies and their applications Lab Geology Department Faculty of Science Beni-Suef University Beni Suef city Egypt

Magnesium-rich zeolite-A (***) was successfully synthesized from natural talc minerals as a novel form of magnesium silicate zeolitic structure with a surface area of 187 m2/g and mesoporous nature (1.5 to 10 nm). Different characterization techniques, including X-ray diffraction (XRD), fourier transform infrared spectroscopy (FT-IR), energy dispersive X-ray spectroscopy (EDX), scanning electron microscope (SEM), and Brunner−Emmet−Teller (BET), confirmed the formation of ***. The adsorption properties of *** were evaluated for effective retention of toxic Cd (II) and Zn (II) metallic ions from the water supplies. The *** structure displays significant capacities for the two ions, with saturation capacities (278 mg/g (Cd (II)) and 221.2 mg/g (Zn (II)) higher than several investigated adsorbents. Based on the steric analysis of the applied advanced isotherm models, the structure of *** was enriched in 150 and 106.9 mg/g effective uptake sites during the retention of Cd (II) and Zn (II), respectively. Up to three ions of Cd (II) and Zn (II) can occupy each of these sites, contributing to their adsorption in a vertical orientation through multi-interaction or multi-ionic mechanisms. The energetic assessment, either based on Gaussian energy ( © 2025

关键词： Fourier transform infrared spectroscopy

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