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Role of Left-Hand Cut Contributions on Pole Extractions from Lattice Data: Case Study for Tcc(3875)+

Physical Review Letters 2023年第13期131卷 131903-131903页

作者： Meng-Lin Du Arseniy Filin Vadim Baru Xiang-Kun Dong Evgeny Epelbaum Feng-Kun Guo Christoph Hanhart Alexey Nefediev Juan Nieves Qian Wang School of Physics University of Electronic Science and Technology of China Chengdu 611731 China Institut für Theoretische Physik II Ruhr-Universität Bochum D-44780 Bochum Germany CAS Key Laboratory of Theoretical Physics Institute of Theoretical Physics Chinese Academy of Sciences Beijing 100190 China School of Physical Sciences University of Chinese Academy of Sciences Beijing 100049 China Peng Huanwu Collaborative Center for Research and Education Beihang University Beijing 100191 China Institute for Advanced Simulation Institut für Kernphysik and Jülich Center for Hadron Physics Forschungszentrum Jülich D-52425 Jülich Germany Jozef Stefan Institute Jamova 39 1000 Ljubljana Slovenia CeFEMA Center of Physics and Engineering of Advanced Materials Instituto Superior Técnico Avenida Rovisco Pais 1 1049-001 Lisboa Portugal Instituto de Física Corpuscular (centro mixto CSIC-UV) Institutos de Investigación de Paterna Apartado 22085 46071 Valencia Spain Guangdong Provincial Key Laboratory of Nuclear Science Institute of Quantum Matter South China Normal University Guangzhou 510006 China Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China Guangdong-Hong Kong Joint Laboratory of Quantum Matter Southern Nuclear Science Computing Center South China Normal University Guangzhou 510006 China

We discuss recent lattice data for the Tcc(3875)+ state to stress, for the first time, a potentially strong impact of left-hand cuts from the one-pion exchange on the pole extraction for near-threshold exotic states. In particular, if the left-hand cut is located close to the two-particle threshold, which happens naturally in the DD* system for the pion mass exceeding its physical value, the effective-range expansion is valid only in a very limited energy range up to the cut and as such is of little use to reliably extract the poles. Then, an accurate extraction of the pole locations requires the one-pion exchange to be implemented explicitly into the scattering amplitudes. Our findings are general and potentially relevant for a wide class of hadronic near-threshold states.

关键词： Hadron-hadron interactions Heavy quark effective theory Lattice QCD Phenomenology Exotic mesons

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Ferroelectric control of single-molecule magnetism in 2D limit

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science Bulletin 2020年第15期65卷 1252-1259,M0003页

作者： Xinwei Wang Chengcheng Xiao Chao Yang Miaogen Chen Shengyuan A.Yang Jun Hu Zhaohui Ren Hui Pan Wenguang Zhu Zhu-An Xu Yunhao Lu State Key Laboratory of Silicon Materials and School of Materials Science and Engineering Zhejiang UniversityHangzhou 310027China Departments of Materials and the Thomas Young Centre for Theory and Simulation of Materials Imperial College LondonLondon SW72AZUK Department of Physics China Jiliang University.Hangzhou 310018China Research Laboratory for Quantum Materials Singapore University of Technology and DesignSingapore 487372Singapore School of Physical Science and Technology Soochow UniversitySuzhou 215006China Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials EngineeringUniversity of MacaoMacao SARChina ICQD Hefei National Laboratory for Physical Science at the MicroscaleKey Laboratory of Strongly-Coupled Quantum Matter PhysicsChinese Academy of SciencesDepartment of Physicsand Synergetic Innovation Center of Quantum Information and Quantum PhysicsUniversity of Science and Technology of ChinaHefei 230026China Zhejiang Province Key Laboratory of Quantum Technology and Device Department of PhysicsZhejiang UniversityHangzhou 310027China Collaborative Innovation Centre of Advanced Microstructures Nanjing UniversityNanjing 210093China

The electric control of magnetic properties based on magnetoelectric effect is crucial for the development of future data storage ***,based on first-principles calculations,a strong magnetoelectric effect is proposed to effectively switch on/off the magnetic states as well as alter the in-plane/perpendicular easy axes of metal-phthalocyanine molecules(MPc)by reversing the electric polarization of the underlying two-dimensional(2D)ferroelectric a-In2Se3 substrate with the application of an external electric *** mechanism originates from the different hybridization between the molecule and the ferroelectric substrate in which the different electronic states of surface Se layer play a dominant ***,the magnetic moments and magnetic anisotropy energies(MAE)of OsPc/In2Se3 can be further largely enhanced by a functionalized atom atop the OsPc *** I-OsPc/In2Se3 system possesses large MAE up to 30 meV at both polarization directions,which is sufficient for room-temperature *** findings provide a feasible scheme to realize ferroelectric control of magnetic states in 2D limit,which have great potential for applications in nanoscale electronics and spintronics.

关键词： Magnetoelectric effect Two-dimensional ferroelectric Single-molecular magnets In2Se3 Metal-phthalocyanine molecules

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Numerical investigation of screech tones in 3-D modes by using an inviscid approach 48

Numerical investigation of screech tones in 3-D modes by usi...

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48th International Congress and Exhibition on Noise Control Engineering, INTER-NOISE 2019 MADRID

作者： Lee, Incheol Lee, Duck Joo Beijing Aeronautical Science and Technology Research Institute of COMAC Beijing Key Laboratory of Simulation Technology for Civil Aircraft Design China North of Future Science Park Changping District Beijing102211 China Korea Advanced Institute of Science and Technology 291 Daehak-Ro Yuseong-Gu Daejeon34141 Korea Republic of

ISBN: (纸本)9788487985317

Screech tones from supersonic inviscid jet were numerically investigated using computational aeroacoustics methods. A fourth order optimized compact scheme and fourth order Runge-Kutta scheme were used to solve three dimensional Euler equations. The tool was validated at the conditions of two supersonic flows: one is a perfectly expanded jet, and the other is three under-expanded jets. Extensive analysis was performed to investigate the characteristics of two three-dimensional modes, known as B and C modes, of screech tones including two mode transitions for various Mach numbers from 1.2 to 1.9. The directivity of a B-mode screech is investigated with the spectra of a Mach 1.3 jet. The directivity of B-mode screech tones is similar to the directivity of an acoustic dipole, whereas the directivity of C-mode screech tones is close to the directivity of an acoustic monopole. The wavelengths and amplitude of the reproduced screech tones showed good agreement with other results. The azimuthal directivity of both B and C modes becomes asymmetric after the second mode transition. It can be concluded that the present inviscid tool can numerically reproduce the screech tone including its non-linear mode transition without considering a viscous effect. © INTER-NOISE 2019 MADRID - 48th International Congress and Exhibition on Noise Control Engineering. All Rights Reserved.

关键词： Feedback

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Microstructures and mechanical properties of friction stir welds on 9% Cr reduced activation ferritic/martensitic steel

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Journal of Materials science & technology 2018年第5期34卷 756-766页

作者： Chao Zhang Lei Cui Yongchang Liu Chenxi Liu Huijun Li State Key Lab of Hydraulic Engineering Simulation and Safety School of Materials Science & EngineeringTianjin University Tianjin Key Laboratory of Advanced Joining Technology School of Materials Science and EngineeringTianjin University

In this study,the microstructures and mechanical properties of 9%Cr reduced activation ferritic/martensitic（RAFM） steel friction stir welded joints were *** a W-Re tool is used,the recommended welding parameters are 300 rpm rotational speed,60 mm/min welding speed and10 kn axial *** stir zone（SZ）,austenite dynamic recrystallization induced by plastic deformation and the high cooling rates lead to an obvious refinement of prior austenite grains and martensite *** microstructure in SZ contains lath martensite with high dislocation density,a lot of nano-sized MX and M3C phase particles,but almost no M23C6 *** thermal mechanically affect zone（TMAZ）and heat affect zone（HAZ）,refinement of prior austenite and martensitic laths and partial dissolution of M（23）C6 precipitates are obtained at relatively low rotational ***,with the increase of heat input,coarsening of martensitic laths,prior austenite grains,and complete dissolution of M23C6 precipitates are *** toughness of SZ at-20℃ is slightly lower than that of base material（BM）,and exhibits a decreasing trend with the increase of rotational speed.

关键词： Friction stir welding Reduced activation ferritic/martensitic steel Microstructure evolution Impact toughness

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A Model Based Heterogeneous Data Collaboration Method

A Model Based Heterogeneous Data Collaboration Method

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IEEE International Conference on Electronics and Communication Engineering (ICECE)

作者： Junjie Xue Junhua Zhou Guoqiang Shi Yanhong Jiang Bowen Wei Hongyan Quan Beijing Complex Product Advanced Manufacturing Engineering Research Center Beijing Simulation Center Beijing China State Key Laboratory of Intelligent Manufacturing System Technology Beijing Institute of Electronic System Engineering Beijing China Beijing Simulation Center Science and Technology on Space System Simulation Laboratory Beijing China School of Software Engineering East China Normal University Shanghai China School of Computer Science and Technology East China Normal University Shanghai China

ISBN: (数字)9781728192581

ISBN: (纸本)9781728192598

Model based heterogeneous data collaboration is important in the integrated design and manufacturing technology. In this work, we propose a systematic method of collaborative design method for heterogeneous data sources. In our method, we use the Open Model Based Engineering Environment (OpenMBEE) to study. In our work, we setup environment and construct the integrated multi-tools achieving consistency design, and then we successfully design and implement a reasonable scheme to parameterize the model in requirement analysis and store the extracted parameters in Model Management System (MMS) for transporting to the visualization tool for further simulation. We integrate the mathematical analysis tools of MATLAB, and successfully design the interface in the tool integration, and realize the model consistency in the problem of integrating multiple tools in the design based on model center. The effectiveness of the proposed integration strategies is verified by some practical instances. That is verified that our provided study can an effective design idea for complex production.

关键词： Analytical models Collaboration Production Tools Data models Mathematical model Matlab

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The Variation, Source, and Environmental Impact of Chloride Across China: Summarized Field Results Based on the Aerosol Mass Spectrometer (AMS)

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Journal of Geophysical Research: Atmospheres 2025年第11期130卷

作者： Mingkai Liu Zhaoce Liu Jun Wang Wei Chen Tingting Feng Tianle Pan Bin Yuan Shan Huang Min Shao Min Hu Xinming Wang Weiwei Hu State Key Laboratory of Advanced Environmental Technology Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou China Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control Guangzhou Institute of Geochemistry Chinese Academy of Science Guangzhou China Guangdong Provincial Key Laboratory of Environmental Protection and Resources Utilization Chinese Academy of Science Guangzhou China University of Chinese Academy of Sciences Beijing China Now at Division of Environment & Sustainability Hong Kong University of Science & Technology Hong Kong China Institute for Environmental and Climate Research Jinan University Guangzhou China Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality Guangzhou China State Key Joint Laboratory of Environmental Simulation and Pollution Control College of Environmental Sciences and Engineering Peking University Beijing China

Despite numerous field studies focusing on the chemical composition of particulate matter, systematic investigations on particulate chloride (Cl − ) are scarce in China. This study examines the spatiotemporal distribution, origin, and environmental impact of Cl − across China via compiling a comprehensive data set of submicron aerosol (PM 1 ) detected by the aerosol mass spectrometer (AMS). In addition, we integrated high-time resolution aerosol composition data from AMS at six representative sites in China for more detailed insights. The mass concentration of Cl − across China is notably high (1.9 ± 2.7 μg m −3 ) in comparison to the global average (0.3 ± 1.0 μg m −3 ), with a distinguished N–S pattern (North > South) and a distinct seasonality (winter > other seasons). Three categories of Cl − diurnal variations were classified, suggesting the primary combustion emission and gas/particle partitioning are the main drivers for the dynamic variation of Cl − . The good correlation between Cl − and combustion tracers corroborates the assertion that coal and biomass combustion are the main anthropogenic sources of Cl − based on emission inventory. Furthermore, the quantified environmental impacts of Cl − on ammonium balances, aerosol liquid water content, and hygroscopicity were systematically explored. In extreme cases, the Cl − can enhance 100% ALWC during polluted periods, signifying its key role in impacting the physiochemistry of aerosols. The mutual promotion between Cl − and other environment effects was also found. In summary, this study enhances our understanding of the distribution, sources, and environmental effects of Cl − across China, indicating that Cl − should be systematically considered in elucidating environment effect of fine particles.

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Interfacial strength vs toughness: Enhancing mechanical and impact performance of CF/PEEK thermoplastic composites

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Chemical Engineering Journal 2025年 518卷

作者： Yu Gao Song Yan Kaiyan Min Xiahui Liu Yue Li Ju Wu Jianfeng Zhou Shu Zhu Peng Wang State Key Laboratory of Advanced Fiber Materials (Donghua University) Shanghai Collaborative Innovation Center of High-Performance Fibers and Composites (Province-Ministry Joint) Center for Civil Aviation Composites College of Materials Science and Engineering Donghua University Shanghai 201620 China Key Laboratory of Shanghai City for Lightweight Composites Key Laboratory of High-Performance Fibers & Products Ministry of Education Donghua University Shanghai 201620 China State Key Laboratory for Turbulence and Complex Systems Department of Mechanics and Engineering Science BIC-ESAT College of Engineering Peking University Beijing 100871 China School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules Shanghai Jiao Tong University Shanghai 201306 China Key Laboratory of Textile Science & Technology of Ministry of Education College of Textiles Donghua University Shanghai 201620 China

Carbon fiber reinforced thermoplastic composites (CFRTP) are highly recyclable, reducing waste and promoting sustainability in industrial applications. Good interfacial adhesion is key to the mechanical performance of CFRTPs. Despite its critical role in impact resistance and durability, interfacial toughness has received less attention than interfacial strength, which has been more widely studied and discussed. In this study, Carbon fiber fabrics were treated with two modifiers of different stiffness: polyimide (M1) and poly(arylsulfone) (M2). Composites containing varying concentrations of these modifiers were then fabricated via compression molding. The influence of modifier stiffness on the mechanical properties and fracture toughness of the composites was systematically analyzed. Compared to untreated fibers, the composites modified with an optimal concentration of M1 achieved tensile strength, flexural strength, and interlaminar shear strength (ILSS) improvements of 24.9 %, 20.5 %, and 27.8 %, respectively, while the M2 modified composites exhibited respective increases of 43.8 %, 19.3 %, and 28.3 %. Analysis of impact damage morphology and C-scan imaging revealed that composites modified with 2 wt% M1 and 1 wt% M2 exhibited reduced internal damage areas. The rigid -C=O-N structure of M1 led to brittle fracture, while the flexible long chains of M2 facilitated stress transfer and energy absorption, resulting in ductile fracture. Their compression-after-impact (CAI) failure modes were characterized by transverse cracking along the central defect. These findings provide valuable theoretical guidance for enhancing the toughness of thermoplastic composites through interfacial treatment.

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Novel pH-responsive hybrid hydrogels for controlled delivery of curcumin: Overcoming conventional constraints and enhancing cytotoxicity in MCF-7 cells

Hybrid Advances

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Hybrid Advances 2024年 6卷

作者： Pourmadadi, Mehrab Gerami, Saman Emami Ajalli, Narges Yazdian, Fatemeh Rahdar, Abbas Fathi-karkan, Sonia Aboudzadeh, M. Ali Protein Research Center Shahid Beheshti University Tehran GC *** Iran School of Chemical Engineering College of Engineering University of Tehran Tehran Iran Department of Life Science Engineering Faculty of New Science and Technologies University of Tehran Tehran Iran Department of Physics Faculty of Sciences University of Zabol Zabol 538-98615 Iran Key Laboratory of Modeling and Simulation-based Reliability and Optimization University of Zabol Zabol Iran Natural Products and Medicinal Plants Research Center North Khorasan University of Medical Sciences Bojnurd 94531-55166 Iran Department of Advanced Sciences and Technologies in Medicine School of Medicine North Khorasan University of Medical Sciences Bojnurd *** Iran POLYMAT and Department of Polymers and Advanced Materials: Physics Chemistry and Technology Faculty of Chemistry University of the Basque Country UPV/EHU Paseo Manuel de Lardizabal 3 Donostia-San Sebastián 20018 Spain

Traditional drug delivery techniques often have drawbacks such inadequate bioavailability, quick clearance, and non-specific targeting, which may result in unfavorable side effects. Hybrid nanocarriers composed of nanoclay have the potential to be a viable solution to these problems. The goal of this work was to design a biocompatible hybrid nanocarrier that would release curcumin under regulated conditions to specific locations, especially cancer cells. FTIR, XRD, and FESEM were used to effectively construct and evaluate our polyvinyl pyrrolidone/polyethylene glycol/montmorillonite (PVP/PEG/MMT) hybrid hydrogels, verifying their synthesis and intended features. Zeta potential and DLS studies showed a suitable size distribution (∼300 nm) and high stability. The curcumin encapsulation efficiency and release profile were assessed using the use of UV spectrophotometry and the dialysis bag technique. The findings showed a gradual and continuous release that was highly impacted by the acidic environment (which mimicked the characteristics of cancer cells), suggesting pH-responsive activity. The MTT test was used in vitro cytotoxicity experiments to show that curcumin-loaded nanocarriers were more effective against MCF-7 cancer cells than curcumin in solution. Increased rates of necrosis and apoptosis in cancer cells treated with the nanocarrier formulation were further validated by flowcytometry. According to these results, PVP/PEG/MMT hybrid hydrogels have a lot of potential as a cutting-edge drug delivery strategy for curcumin. They may be able to overcome some of the drawbacks of traditional techniques and improve the effectiveness of treatment against cancer cells. © 2024 The Authors

关键词： Cancer Curcumin Cytotoxicity Hybrid hydrogel pH-responsive Polyvinylpyrrolidone

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Stability analysis for Takagi-Sugeno fuzzy systems with a periodically varying delay via a generalized allowable delay set partitioning approach

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Fuzzy Sets and Systems 2025年 518卷

作者： Yun Chen Xin Wang Yaqi Li Yunfei Qiu Shuangcheng Sun School of Transportation and Electrical Engineering Hunan University of Technology Zhuzhou 412007 China State Key Laboratory of Synthetical Automation for Process Industries Northeastern University Shenyang 110819 China School of Artificial Intelligence and State Key Laboratory of Disaster Prevention & Reduction for Power Grid Changsha University of Science and Technology Changsha 410114 China Department of Electrical Engineering Hunan Aviation Technical College Zhuzhou 412006 China National Innovation Center of Advanced Rail Transit Equipment Zhuzhou 412001 China School of Electrical and Information Engineering Jiangsu University Zhenjiang 212013 China

Recently, researchers have employed a monotone-delay-interval-based Lyapunov-Krasovskii functional (LKF) to investigate the delay-dependent stability of Takagi-Sugeno (T-S) fuzzy systems with a periodically varying delay. However, this method is limited by its looped LKF structure and seems to ignore the benefits of partitioning the allowable delay set. To address this gap, a generalized allowable delay set partitioning approach is introduced, leveraging the definition of the allowable delay set and a region partitioning scheme, to analyze the stability of T-S fuzzy systems with a periodically varying delay. Our approach allows the construction of different LKFs in various partition sets. This flexibility, compared to existing methods, relaxes the structure of LKF construction and enhances the utilization of system state and delay function information. Subsequently, stability criteria, which exhibit a hierarchy, for T-S fuzzy systems with a periodically varying delay are derived. Finally, the efficacy and superiority of the proposed stability criteria are confirmed through two numerical examples and a practical truck-trailer system.

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Effects of surface charge and environmental factors on the electrostatic interaction of fiber with virus-like particle: A case of coronavirus

arXiv

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arXiv 2021年

作者： Dung, Dinh Ngoc Phan, Anh D. Nguyen, Toan T. Lam, Vu D. Faculty of Materials Science and Engineering Phenikaa University Yen Nghia Ha Dong Ha Noi12116 Viet Nam Phenikaa Institute for Advanced Study Phenikaa University Yen Nghia Ha Dong Ha Noi12116 Viet Nam Key Laboratory for Multiscale Simulation of Complex Systems Faculty of Physics VNU University of Science Vietnam National University – Hanoi 334 Nguyen Trai Street Thanh Xuan District Hanoi10000 Viet Nam Graduate University of Science and Technology Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Hanoi Viet Nam

We propose a theoretical model to elucidate intermolecular electrostatic interactions between a virus and a substrate. Our model treats the virus as a homogeneous particle having surface charge and the polymer fiber of the respirator as a charged plane. Electric potentials surrounding the virus and fiber are influenced by the surface charge distribution of the virus. We use Poisson-Boltzmann equations to calculate electric potentials. Then, Derjaguin’s approximation and a linear superposition of the potential function are extended to determine the electrostatic force. In this work, we apply this model for coronavirus or SARS-CoV-2 case and numerical results quantitatively agree with prior simulation. We find that the influence of fiber’s potential on the surface charge of the virus is important and is considered in interaction calculations to obtain better accuracy. The electrostatic interaction significantly decays with increasing separation distance, and this curve becomes steeper when adding more salt. Although the interaction force increases with heating, one can observe the repulsive-attractive transition when the environment is acidic. Copyright © 2021, The Authors. All rights reserved.

关键词： Boltzmann equation

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