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arXiv 2023年

作者： Liu, Lu-Meng Xu, Jun Peng, Guang-Xiong School of Physical Sciences University of Chinese Academy of Sciences Beijing100049 China School of Physics Science and Engineering Tongji University Shanghai200092 China Shanghai Advanced Research Institute Chinese Academy of Sciences Shanghai201210 China Shanghai Institute of Applied Physics Chinese Academy of Sciences Shanghai201800 China School of Nuclear Science and Technology University of Chinese Academy of Sciences Beijing100049 China

Based on the three-flavor Polyakov-looped Nambu−Jona-Lasinio (pNJL) model, we have studied the structure of the three-dimensional QCD phase diagram with respect to the temperature, the baryon chemical potential, and the isospin chemical potential, by investigating the interplay among the chiral quark condensate, the pion condensate, and the Polyakov loop. While the pNJL model leads to qualitatively similar structure of the normal quark phase, the pion superfluid phase, and the Sarma phase as well as their phase boundaries, when compared to the NJL model, the inclusion of the Polyakov loop enlarges considerably the areas of the pion superfluid phase and the Sarma phase, and leads to critical end points at higher temperatures. With the contribution of the gluon dynamics effectively included, the present study is expected to give a more reliable prediction of the three-dimensional QCD phase diagram compared to that in the NJL model. © 2023, CC BY-NC-ND.

关键词： Phase diagrams

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Exploring Environmentally Friendly Corrosion Inhibitors: Insights from Natural and Biomass Residue-Derived Compounds

SSRN

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SSRN 2024年

作者： Othman, Norinsan Kamil Mohammed, Naba Jasim Yusop, Muhammed Rahimi Al-Gburi, Ahmed Jamal Abdullah Materials Science Program Department of Applied Physics Faculty of Science and Technology University Kebangsaan Malaysia Selangor Bangi43600 Malaysia Faculty of Science and Technology School of Chemical Sciences and Food Technology University Kepangsaan Malaysia Selangor Bangi43600 Malaysia Faculty of Electronics and Computer Engineering Universiti Teknikal Malaysia Melaka Hang Tuah Jaya Melaka Durian Tunggal76100 Malaysia

In this investigation, we explored the corrosive effects of date palm seed extracted from natural sources and biomass residues on mild steel in a solution of 0.5 M hydrochloric acid (HCl), employing a combination of experimental and theoretical approaches. Our objective was to scrutinize the interaction of the inhibitor with the metal surface, analyze experimental data, and elucidate how the structural characteristics of the inhibitors influence the corrosion process. The experimental results indicated that as the immersion time and temperature increased, the inhibitory effectiveness declined. Notably, the highest level of inhibition occurred when the concentration of date palm seed extract (DPSE) reached 1100 ppm, showcasing peak inhibitory effects of 95.8% and 97.8% through potentiodynamic polarization and electrochemical impedance spectroscopy techniques, respectively. Additionally, an analysis using X-ray diffraction (XRD) was conducted to scrutinize the chemical composition of the mild steel's surface. The adsorption data were evaluated using adsorption isotherms, revealing that DPSE adhered to the Langmuir adsorption isotherm on the mild steel surface. The Langmuir model exhibited the highest linear regression coefficient value and a slope close to unity. The Gibbs free energy () values suggested that the protection afforded by DPSE involved physical and spontaneous absorption. Examination of the results pertaining to the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) indicated that the carboxyl (COOH) group and the C=C bond were the principal regions exhibiting elevated electron acceptance activity. These components were found to be crucial in the adsorption process on the surface of iron (Fe). © 2024, The Authors. All rights reserved.

关键词： Electrochemical impedance spectroscopy

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Chemical Structures and Stability of Amine Plasma Polymers Deposited on Porous Hydroxyapatite Artificial Bone with Bipolar Pulsed Discharges

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SSRN 2024年

作者： Harumningtyas, Anjar Anggraini Ito, Tomoko Michlíček, Miroslav Kodama, Joe Nečas, David Kita, Hidekazu Kaito, Takashi Zajíčková, Lenka Hamaguchi, Satoshi International Priority Graduate Program on Applied and Engineering Physics Division of Precision Engineering and Applied Physics Osaka University 2-1 Yamadaoka Suita Osaka565-0871 Japan Division of Materials and Manufacturing Science Graduate School of Engineering Osaka University 2-1 Yamadaoka Suita Osaka565-0871 Japan Jalan Babarsari Kotak Pos 6101 ykbb Yogyakarta55281 Indonesia Department of Condensed Matter Physics Faculty of Science Masaryk University Kotlarska 2 Brno61137 Czech Republic Department of Orthopaedic Surgery Osaka University Graduate School of Medicine Osaka565-0871 Japan CEITEC Central European Institute of Technology Brno University of Technology Purkyňova 123 Brno61200 Czech Republic

A recent in vivo study by Kodama et al. shows that porous artificial bones coated with aminecontaining polymers deposited in a plasma-enhanced chemical vapour deposition (PECVD) process with high-voltage, low-frequency bipolar pulsed discharges significantly enhanced bone regeneration. This article reports the chemical and physical properties of amine plasma polymers (PPs) formed under the same deposition conditions, including the film stability for up to two months, the effects of sterilization on the chemical compositions of the films, and the penetration of amine PPs into the inner surfaces of interconnected microscopic pores of the amine-PP-coated porous artificial bone. It was found that, immediately after the plasma polymerization process, approximately 15% of nitrogen atoms on the surface of the deposited amine PP formed primary amines but the number decreased to approximately 5% over one month if the sample was exposed to ambient air or sterilized by autoclaving or ethylene oxide gas. Nitriles ( –CN) were also detected in the deposited amine PPs. Molecular dynamics simulations of simplified deposition processes suggest that the observed nitriles were likely to be formed by the incorporation of gas-phase cyano radicals that were also observed in the experiments of this study. © 2024, The Authors. All rights reserved.

关键词： Hydroxyapatite

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A Search for Solar Axions and Anomalous Neutrino Magnetic Moment with the Complete Panda X-Ⅱ Data

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Chinese physics Letters 2021年第1期38卷 30-34页

作者： Xiaopeng Zhou Xinning Zeng Xuyang Ning Abdusalam Abdukerim Wei Chen Xun Chen Yunhua Chen Chen Cheng Xiangyi Cui Yingjie Fan Deqing Fang Changbo Fu Mengting Fu Lisheng Geng Karl Giboni Linhui Gu Xuyuan Guo Ke Han Changda He Di Huang Yan Huang Yanlin Huang Zhou Huang Xiangdong Ji Yonglin Ju Shuaijie Li Huaxuan Liu Jianglai Liu Xiaoying Lu Wenbo Ma Yugang Ma Yajun Mao Yue Meng Kaixiang Ni Jinhua Ning Xiangxiang Ren Changsong Shang Guofang Shen Lin Si Andi Tan Anqing Wang Hongwei Wang Meng Wang Qiuhong Wang Siguang Wang Wei Wang Xiuli Wang Zhou Wang Mengmeng Wu Shiyong Wu Weihao Wu Jingkai Xia Mengjiao Xiao Pengwei Xie Binbin Yan Jijun Yang Yong Yang Chunxu Yu Jumin Yuan Ying Yuan Dan Zhang Tao Zhang Li Zhao Qibin Zheng Jifang Zhou Ning Zhou INPAC School of Physics and AstronomyShanghai Jiao Tong Universityand Shanghai Key Laboratory for Particle Physics and CosmologyShanghai 200240China School of Physics Beihang UniversityBeijing 100191China Shanghai Jiao Tong University Sichuan Research Institute Chengdu 610213China Yalong River Hydropower Development Company Ltd.288 Shuanglin RoadChengdu 610051China School of Physics Sun Yat-Sen UniversityGuangzhou 510275China Tsung-Dao Lee Institute Shanghai Jiao Tong UniversityShanghai 200240China School of Physics Nankai UniversityTianjin 300071China Key Laboratory of Nuclear Physics and Ion-Beam Application(MOE) Institute of Modern PhysicsFudan UniversityShanghai 200433China School of Physics Peking UniversityBeijing 100871China International Research Center for Nuclei and Particles in the Cosmos&Beijing Key Laboratory of Advanced Nuclear Materials and Physics Beihang UniversityBeijing 100191China School of Medical Instrument and Food Engineering University of Shanghai for Science and TechnologyShanghai 200093China Department of Physics University of MarylandCollege ParkMaryland 20742USA School of Mechanical Engineering Shanghai Jiao Tong UniversityShanghai 200240China School of Physics and Key Laboratory of Particle Physics and Particle Irradiation(MOE) Shandong UniversityJinan 250100China Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China Shanghai Advanced Research Institute Chinese Academy of SciencesShanghai 201210China Center for High Energy Physics Peking UniversityBeijing 100871China

We report a search for new physics signals using the low energy electron recoil events in the complete data set from PandaX-Ⅱ,in light of the recent event excess reported by XENON1 *** data correspond to a total exposure of 100.7 ton·day with liquid *** robust estimates of the dominant background spectra,we perform sensitive searches on solar axions and neutrinos with enhanced magnetic *** is found that the axionelectron coupling gAe<4.6×10^(-12) for an axion mass less than 0.1 keV/c^(2) and the neutrino magnetic moment μv<4.9×10^(-11)μB at 90%confidence *** observed excess from XENON1 T is within our experimental constraints.

关键词： moment. excess estimates

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Giant long-range dipole-dipole interactions in a plasmonic lattice

Giant long-range dipole-dipole interactions in a plasmonic l...

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Frontiers in Optics + Laser science 2021, FiO+LS 2021 - Part of Frontiers in Optics, FiO 2021

作者： Boddeti, Ashwin K. Guan, Jun Sentz, Tyler Juarez, Xitali Newman, Ward Cortes, Cristian Odom, Teri W. Jacob, Zubin School of Electrical and Computer Engineering Birck Nanotechnology Center Purdue University West LafayetteIN47907 United States Graduate Program in Applied Physics Northwestern University EvanstonIL60208 United States Department of Materials Science and Engineering Northwestern University EvanstonIL60208 United States Intel Corporation BeavertonOR97007 United States Center for Nanoscale Materials Argonne National Laboratory LemontIL60439 United States Graduate Program in Applied Physics Department of Materials Science and Engineering Department of Chemistry Northwestern University EvanstonIL60208 United States

We observe long-range dipole-dipole interactions in a plasmonic lattice. Fluorescence lifetime measurements show density-dependent non-exponential decay dynamics over 800nm mean nearest-neighbour separation distances ... 详细信息

ISBN: (纸本)9781557528209

关键词： Plasmonics

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Deep-Strong Coupling between Cavity Photons and Terahertz TO Phonons in PbTe

Deep-Strong Coupling between Cavity Photons and Terahertz TO...

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2023 Conference on Lasers and Electro-Optics, CLEO 2023

作者： Baydin, Andrey Manjappa, Manukumara Mishra, Sobhan Subhra Xu, Hongjing Tay, Fuyang Kim, Dasom Hernandez, Felix G.G. Rappl, Paulo H.O. Abramof, Eduardo Singh, Ranjan Kono, Junichiro Department of Electrical and Computer Engineering Rice University HoustonTX77005 United States Smalley-Curl Institute Rice University HoustonTX77005 United States Instrumentation and Applied Physics Department Indian Institute of Science Bangalore560012 India Center for Disruptive Photonic Technologies The Photonics Institute Nanyang Technological University 639798 Singapore Department of Physics and Astronomy Rice University HoustonTX77005 United States Applied Physics Graduate Program Smalley-Curl Institute Rice University HoustonTX77005 United States Instituto de Física Universidade de Sao Paulo SP Sao Paulo05508-090 Brazil Laboratorio Associado de Sensores e Materiais Instituto Nacional de Pesquisas Espaciais SP Sao Jose dos Campos12201-970 Brazil Division of Physics and Applied Physics School of Physical and Mathematical Sciences Nanyang Technological University 637371 Singapore Department of Material Science and NanoEngineering Rice University HoustonTX77005 United States

We have investigated the resonant coupling of photons with TO phonons in lead telluride in small-mode-volume terahertz cavities, observing a giant vacuum Rabi splitting on the order of the bare cavity-phonon frequency... 详细信息

ISBN: (纸本)9781957171258

关键词： Photons

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Non-Hermitian lattice fermions in the 2D Gross-Neveu-Yukawa model

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Physical Review D 2024年第3期110卷 034502-034502页

作者： Xingyu Guo Chen-Te Ma Hui Zhang Key Laboratory of Atomic and Subatomic Structure and Quantum Control (MOE) Guangdong Basic Research Center of Excellence for Structure and Fundamental Interactions of Matter Institute of Quantum Matter South China Normal University Department of Physics and Astronomy Iowa State University Guangdong Provincial Key Laboratory of Nuclear Science Institute of Quantum Matter South China Normal University Guangdong-Hong Kong Joint Laboratory of Quantum Matter Southern Nuclear Science Computing Center South China Normal University Asia Pacific Center for Theoretical Physics Pohang University of Science and Technology School of Physics and Telecommunication Engineering South China Normal University The Laboratory for Quantum Gravity and Strings Department of Mathematics and Applied Mathematics University of Cape Town Physics Department Center for Exploration of Energy and Matter Indiana University

We work the lattice fermions and non-Hermitian formulation in the 2D Gross-Neveu-Yukawa (GNY) model and demonstrate the numerical implementation for two flavors by the hybrid Monte Carlo. Our approach has a notable advantage in dealing with chiral symmetry on a lattice by avoiding the Nielsen-Ninomiya theorem, due to the nonsymmetrized finite-difference operator. We restore the hypercubic symmetry by averaging over all possible orientations with the proper continuum limit. Our study is the first simulation for the interacting fermion formulated in a non-Hermitian way. We compare the numerical solution with the one-loop resummation. The resummation results matches with the numerical solution in ⟨ϕ⟩, ⟨ϕ2⟩, ⟨Tr(ψ¯1ψ1+ψ¯2ψ2)/2⟩, and ⟨Tr(ψ¯1ψ1+ψ¯2ψ2)ϕ/2⟩. We also used the one-loop resummation to provide the renormalization group flow and asymptotic safety in the 2D GNY model.

关键词： Nonperturbative effects in field theory Perturbation theory Chiral symmetry Hybrid Monte Carlo algorithm Lattice field theory

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EVALUATION OF SYRINGIC ACID-LOADED BORONIC ACID FUNCTIONALIZED MESOPOROUS SILICA PROPERTIES

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UPB Scientific Bulletin, Series B: Chemistry and Materials science 2024年第4期86卷 5-18页

作者： Ionita, Simona Deaconu, Mihaela Irimescu, Ionela Nicoleta Popescu, Roxana Cristina Mihailescu, Mona Sandu, Ana Maria Prundeanu, Mioara Savu, Diana Iulia Berger, Daniela Department of Inorganic Chemistry Physical-Chemistry & Electrochemistry National University of Science and Technology POLITEHNICA of Bucharest Romania CAMPUS Research Centre National University of Science and Technology POLITEHNICA of Bucharest Romania Applied Sciences Doctoral School National University of Science and Technology POLITEHNICA of Bucharest Tehnoplus Medical SRL Bucharest Romania Department of Life and Environmental Sciences "Horia Hulubei" National Institute for Research and Development in Physics and Nuclear Engineering Magurele Romania Department of Bioengineering and Biotechnology National University of Science and Technology POLITEHNICA of Bucharest Romania Department of Physics National University of Science and Technology POLITEHNICA of Bucharest Romania

Nanotechnology addresses a current issue in cancer treatment, the non-specificity of cytotoxic agents associated with severe side effects. Mesoporous silica-based systems emerged as promising drug delivery vehicles that can be modified to target tumoral cells in order to achieve a better therapeutic effect. Herein, MCM-41 silica was functionalized with a boronic acid derivative, as a targeting agent towards breast cancer cells, and loaded with syringic acid, a phenolic acid with a reported antitumoral potential. The resulting system’s cytotoxicity and internalization into cells were evaluated on breast cancer cells and compared to human fibroblasts. © 2024, Politechnica University of Bucharest. All rights reserved.

关键词： Mesopores

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Impacts of irradiation-induced nanostructure on phonon linewidths and thermal conductivity in U-Zr alloy

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Physical Review B 2023年第10期108卷 104318-104318页

作者： Hao Ma Zilong Hua Amrita Sen Tiankai Yao Matthew S. Bryan Ahmet Alatas Erika K. Nosal Saqeeb Adnan Enda Xiao Aaron French Mukesh Bachhav Chris A. Marianetti Marat Khafizov Lin Shao Lingfeng He Janelle P. Wharry David H. Hurley Michael E. Manley Materials Science and Technology Division Oak Ridge National Laboratory Oak Ridge Tennessee 37831 USA Department of Thermal Science and Energy Engineering University of Science and Technology of China Hefei 230026 Anhui China Idaho National Laboratory Idaho Falls Idaho 83415 USA School of Materials Engineering Purdue University West Lafayette Indiana 47906 USA Advanced Photon Source Argonne National Laboratory Argonne Illinois 60439 USA Department of Mechanical and Aerospace Engineering The Ohio State University Columbus Ohio 43210 USA Department of Chemistry Columbia University New York 10027 USA Department of Nuclear Engineering Texas A&M University College Station Texas 77843 USA Department of Applied Physics and Applied Mathematics Columbia University New York 10027 USA

Ion irradiation can significantly change material properties. Thermal conductivity degradation of reactor fuel is detrimental to safety and efficiency—driving research on how irradiation impacts heat-carrying phonons. Here, we report the measurements of phonon dispersion and lifetimes (inverse linewidths) in freestanding irradiated crystals and reveal the relationship between thermal conductivity and proton irradiation induced nanostructures in UZr2.6 using inelastic x-ray scattering, electron microscopy, modulated thermoreflectance, and first-principles calculations. Irradiation results in more significant increases in phonon linewidths and decreased thermal conductivity in the basal plane than that along the c axis, decreasing thermal conductivity anisotropy. Microscopy reveals that this results from irradiation induced nanoprecipitates and metastable phase separation. Surprisingly, irradiation leads to smaller phonon linewidths near some zone boundaries, which we attribute to irradiation induced short-range order.

关键词： Irradiation effects Phonons Thermal conductivity Density functional calculations Inelastic X-ray scattering Scanning transmission electron microscopy

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Novel Circuit Design for a 3D Position Sensitive Scintillation TOF-PET Detector that Achieves ~100 ps CTR

Novel Circuit Design for a 3D Position Sensitive Scintillati...

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IEEE Symposium on nuclear science (NSS/MIC)

作者： Shirin Pourashraf Zhixiang Zhao Derek Innes Andrea Gonzalez-Montoro Joshua W. Cates Craig S. Levin Department of Radiology Stanford University Stanford CA USA Shanghai Jiao Tong University School of Biomedical EngineeringShanghaiPeople's Republic of China Applied Nuclear Physics Program Lawrence Berkeley National Laboratory Berkeley CA USA Departments of Radiology Bioengineering Physics and Electrical Engineering Molecular Imaging Program Stanford University Stanford CA USA

We have built a scalable mixed-signal readout circuit for a 3D position sensitive PET detector that achieves ~100 ps FWHM CTR. For this work we used individual 3×3×3 mm 3 and 3×3×10 mm 3 LGSO crystals, as well as 2×4 arrays of 3×3×10 mm 3 crystals side-coupled to arrays of 3.16×3.16 mm 2 SiPMs. The preliminary results verify that the CPLD is able to resolve 3D interaction positions along the array with < 3 mm positioning resolution along the length of each 10 mm long crystal element. We also present the readout strategy to compensate the CPLD digital noise that otherwise reduces the sensitivity and CTR performance. With this novel strategy we achieved nearly %100 sensitivity recovery as well as ~11 ps improved CTR.

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