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Predictions of H-mode access and edge pedestal instability in the EHL-2 spherical torus

Plasma science and technology 2025年第2期27卷 54-63页

作者： Yumin WANG Kai LI Zhuo HUANG Yiliang LIU Shuyu DAI Jie ZHANG Yanqing HUANG Xiang GU Yihang ZHAO Shuai XU Erhui WANG Dong GUO Yuejiang SHI Huasheng XIE Yunfeng LIANG Minsheng LIU the EHL-2 Team Hebei Key Laboratory of Compact Fusion Langfang 065001People’s Republic of China ENN Science and Technology Development Co. Ltd.Langfang 065001People’s Republic of China Centre for Theoretical and Computational Physics College of PhysicsQingdao UniversityQingdao 266071People’s Republic of China College of Computer Science South-Central Minzu UniversityWuhan 430074People’s Republic of China Key Laboratory of Materials Modification by Laser Ion and Electron Beams(Ministry of Education)School of PhysicsDalian University of TechnologyDalian 116024People’s Republic of China Department of Plasma Physics and Fusion Engineering University of Science and Technology of ChinaHefei 230026People’s Republic of China College of Physics and Electronic Engineering Hengyang Normal UniversityHenyang 421002People’s Republic of China Forschungszentrum Jülich GmbH Institute of Fusion Energy and Nuclear Waste Management-PlasmaphysikJülich 52425Germany

The EHL-2 spherical torus is designed to demonstrate proton-boron(p-11B)fusion within a compact spherical *** planned heating system includes a negative ion-based neutral beam injection(N-NBI),two positive ion-based NBI systems(P-NBI),electron cyclotron resonance heating(ECRH),ion cyclotron resonance heating(ICRH),and high harmonic fast wave(HHFW),with a total power output of 31 *** to scaling law estimates,the device is capable of achieving H-mode *** plasma density,,n_(e,min)at the minimum L-H power threshold,P_(lh),is estimated to be 4.4×10^(19)m^(-3).The pedestal parameters were calculated using the REPED *** B as the primary impurity ion,the predicted pedestal width and height are lower compared to the typical case with carbon *** pedestal collisionality for EHL-2 is estimated to range between 0.06 and 0.17,indicating the potential for significant energy loss due to edge localized modes(ELMs).The heat flux on the divertor plate has been calculated using the JOREK *** peak heat fluxes during ELM bursts are approximately 31.0 MW/m^(2)at the lower inboard target and 39.5 MW/m^(2)at the lower outboard target.A preliminary design of the resonant magnetic perturbation(RMP)coils has been completed to both control type-I ELMs and correct error *** system comprises 16 coils arranged into 24 *** ELM control mode,a 14/2 component is generated at 1.7 G/kAt,with a current of 4.9 kA required to achieveσChirikow=1 at the resonant surface,where the normalized poloidal magnetic flux is *** error field(EF)modulation mode,2/1 and 3/1 components are generated at 3.5 G/kAt and 2.8 G/kAt,respectively.

关键词： H-mode spherical torus(ST) EHL-2 pedestal resonant magnetic perturbations

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Observation of Floquet–Bloch states in monolayer graphene

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Nature Physics 2025年 1-6页

作者： Choi, Dongsung Mogi, Masataka De Giovannini, Umberto Azoury, Doron Lv, Baiqing Su, Yifan Hübener, Hannes Rubio, Angel Gedik, Nuh Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology CambridgeMA United States Department of Physics Massachusetts Institute of Technology CambridgeMA United States Department of Applied Physics University of Tokyo Tokyo Japan Max Planck Institute for the Structure and Dynamics of Matter and Center for Free Electron Laser Science Hamburg Germany Dipartimento di Fisica e Chimica - Emilio Segrè Università degli Studi di Palermo Palermo Italy Tsung-Dao Lee Institute School of Physics and Astronomy and Zhangjiang Institute for Advanced Study Shanghai Jiao Tong University Shanghai China The Flatiron Institute New YorkNY United States

Floquet engineering enables the manipulation of quantum phases of matter through periodic driving. It has been implemented across different platforms, ranging from photonic systems to optical lattices of ultracold atoms. In solids, coherent light–matter interaction induced by periodic driving leads to hybridization of Bloch electrons with photons, resulting in the formation of replica bands known as Floquet–Bloch states. These states have been observed in several materials, and their properties have been linked to a range of predicted phase transitions. However, direct energy and momentum-resolved observation of these states remains limited to a few. Here we report the direct observation of Floquet–Bloch states in monolayer epitaxial graphene. By using time-resolved and angle-resolved photoemission spectroscopy with mid-infrared pump excitation, we detected replicas of the Dirac cone. The dependence of these replica bands on pump polarization shows that they originate from the scattering between Floquet–Bloch states and photon-dressed free-electron-like photoemission final states, known as Volkov states. Our method can potentially be used to directly observe Floquet–Bloch states at large momenta in other quantum materials. © The Author(s), under exclusive licence to Springer Nature Limited 2025.

关键词： Photoelectron spectroscopy

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Beyond the band edge: Unveiling high-mobility hot carriers in a two-dimensional conjugated coordination polymer

arXiv

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arXiv 2025年

作者： Fu, Shuai Huang, Xing Gao, Guoquan Petkov, Petko St. Gao, Wenpei Zhang, Jianjun Gao, Lei Zhang, Heng Liu, Min Hambsch, Mike Zhang, Wenjie Zhang, Jiaxu Li, Keming Kaiser, Ute Parkin, Stuart S.P. Mannsfeld, Stefan C.B. Zhu, Tong Wang, Hai I. Wang, Zhiyong Dong, Renhao Feng, Xinliang Bonn, Mischa Center for Advancing Electronics Dresden Faculty of Chemistry and Food Chemistry Technische Universität Dresden Dresden Germany Max Planck Institute for Polymer Research Mainz Germany Laser Micro/Nano Fabrication Laboratory School of Mechanical Engineering Beijing Institute of Technology Beijing China Faculty of Chemistry and Pharmacy University of Sofia Sofia Bulgaria State Key Laboratory of Metal Matrix Composites School of Materials Science and Engineering Future Material Innovation Center Zhangjiang Institute for Advanced Study Shanghai Jiao Tong University Shanghai China Center for Advancing Electronics Dresden Faculty of Electrical and Computer Engineering TUD Dresden University of Technology Germany Germany Central Facility for Materials Science Electron Microscopy Universität Ulm Ulm Germany Nanophotonics Debye Institute for Nanomaterials Science Utrecht University Utrecht Netherlands Department of Chemistry The University of Hong Kong 999077 Hong Kong HKU-SIRI Shenzhen518048 China

Hot carriers, inheriting excess kinetic energy from high-energy photons, underpin numerous optoelectronic applications involving non-equilibrium transport processes. Current research on hot carriers has predominantly focused on inorganic materials, with little attention paid to organic-based systems due to their ultrafast energy relaxation and inefficient charge transport. Here, we overturn this paradigm by demonstrating highly mobile hot carriers in solution-processable, highly crystalline two-dimensional conjugated coordination polymer (2D c-CP) Cu3BHT (BHT = benzenehexathiol) films. Leveraging a suite of ultrafast spectroscopic and imaging techniques, we unravel the microscopic charge transport landscape in Cu3BHT films following non-equilibrium photoexcitation across temporal, spatial, and frequency domains, revealing two distinct high-mobility transport regimes. In the non-equilibrium transport regime, hot carriers achieve ultrahigh mobility of ~2,000 cm2 V–1 s–1, traversing grain boundaries up to ~300 nm within a picosecond. In the quasi-equilibrium transport regime, free carriers exhibit Drude-type band-like transport with a remarkable mobility of ~400 cm2 V–1 s–1 and an intrinsic diffusion length exceeding 1 µm. These findings establish 2D c-CPs as versatile platforms for exploring high-mobility non-equilibrium transport, unlocking new opportunities for organic-based hot carrier applications. Copyright © 2025, The Authors. All rights reserved.

关键词： Kinetic energy

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Research on the intrusion detection based on the clonal algorithm

Research on the intrusion detection based on the clonal algo...

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International Conference on computer Application and System Modeling

作者： Liu, Dongming Song, Lipeng Electron and Computer Science and Technology Institute North University of China NUC Taiyuan China

ISBN: (纸本)9781424472369

This paper infers an intrusion detection way based on clone including the overall detection algorithms modules and susceptibility, memory test cells and mature cell detection algorithms, algorithm can be to dynamically adopted definition autologous according to the change of circumstances to adjust autologous set size just guarantee to be the normal behavior autologous exist in the space complex, which improve the detection system and adapt to the actual environment. © 2010 IEEE.

关键词： Intrusion detection

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The study on helicopter route planning

The study on helicopter route planning

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2010 International Conference on computer Application and System Modeling, ICCASM 2010

作者： Qiong, Shi Electron and Computer Science and Technology Institute North University of China Taiyuan Shanxi 030051 China

ISBN: (纸本)9781424472369

Route planning is a very important part in simulation system. Under a simulated circumstance, the simulation can be improved if we can plan a reasonable flight path. This paper studies the helicopter route planning in hilly terrain. The whole route planning is divided into two levels. Firstly, the reference trajectory was planned, then replan parts of them, according to the changes in the environment (such as the emergence of new threats), and the others still in their track. Finally, on the platform of MATLAB, simulated the algorithm and the algorithm validity can be verified. © 2010 IEEE.

关键词： MATLAB

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Influence of ammonium tungstate additive in metallization baths on Ni-Cu-P resistive layer properties 21

Influence of ammonium tungstate additive in metallization ba...

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21st European Microelectronics and Packaging Conference and Exhibition, EMPC 2017

作者： Filipowski, Wojciech Pruszowski, Zbigniew Waczyński, Krzysztof Waczyńska-Niemiec, Natalia Czerwiński, Andrzej Pluska, Mariusz Kulawik, Jan Institute of Electronics Faculty of Automatic Control Electronics and Computer Science Silesian University of Technology Gliwice Poland Institute of Electron Technology Warsaw Poland Institute of Electron Technology Kraków Division Krakow Poland

ISBN: (纸本)9780956808646

The paper concerns research on the impact of ammonium tungstate additive in metallization baths on chemical properties of thin Ni-Cu-P resistive layers produced by means of chemical metallization. Material properties were modified by forming a Ni-Cu-P layer in the presence of tungsten ions. Layers obtained in this manner were examined for possibility of application in production of precision film resistors with a near 0 [ppm/K] temperature coefficient of resistance (TCR). The influence of time of ammonium tungstate introduction into a metallization bath on the Ni-Cu-P resistive layer deposition process has been examined and analyzed. © 2017 IMAPS Europe.

关键词： Metallizing

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Correction: Materials laboratories of the future for alloys, amorphous, and composite materials (MRS Bulletin, (2025), 50, 2, (190-207), 10.1557/s43577-024-00846-y)

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MRS Bulletin 2025年 1-2页

作者： Banerjee, Sarbajit Meng, Y. Shirley Minor, Andrew M. Zhang, Minghao Zaluzec, Nestor J. Chan, Maria K.Y. Seidler, Gerald McComb, David W. Agar, Joshua Mukherjee, Partha P. Melot, Brent Chapman, Karena Guiton, Beth S. Klie, Robert F. McCue, Ian D. Voyles, Paul M. Robertson, Ian Li, Ling Chi, Miaofang Destino, Joel F. Devaraj, Arun Marquis, Emmanuelle A. Segre, Carlo U. Liu, Huinan H. Yang, Judith C. Momeni, Kasra Misra, Amit Abdolrahim, Niaz Medvedeva, Julia E. Cai, Wenjun Sehirlioglu, Alp Dizbay-Onat, Melike Mehta, Apurva Graham-Brady, Lori Maruyama, Benji Rajan, Krishna Warner, Jamie H. Taheri, Mitra L. Kalinin, Sergei V. Reeja-Jayan, B. Schwarz, Udo D. Simon, Sindee L. Brown, Craig M. Department of Chemistry and Department of Materials Science & Engineering Texas A & M University College Station United States Pritzker School of Molecular Engineering The University of Chicago Chicago United States Department of Materials Science & Engineering University of California Berkeley Berkeley United States National Center for Electron Microscopy Molecular Foundry Lawrence Berkeley National Laboratory Berkeley United States Center for Nanoscale Materials Argonne National Laboratory Lemont United States Department of Physics University of Washington Seattle United States Department of Materials Science & Engineering The Ohio State University Columbus United States Department of Mechanical Engineering and Mechanics Drexel University Philadelphia United States School of Mechanical Engineering Purdue University West Lafayette United States Department of Chemistry University of Southern California Los Angeles United States Department of Chemistry Stony Brook University The State University of New York Stony Brook United States Department of Chemistry University of Kentucky Lexington United States Department of Physics University of Illinois at Chicago Chicago United States Department of Materials Science & Engineering Northwestern University Evanston Bangladesh Department of Materials Science & Engineering University of Wisconsin–Madison Madison United States Department of Materials Science and Engineering University of Pennsylvania Philadelphia United States Department of Mechanical Engineering and Materials Science Duke University Durham United States Department of Chemistry Creighton University Omaha United States Physical and Computational Sciences Directorate Pacific Northwest National Laboratory Richland United States Department of Materials Science & Engineering University of Michigan–Ann Arbor Ann Arbor United States Department of Physics Illinois Institute of Technology Chicago United States Department of Bioengineering and the Mater

This article was updated to correct Minghao Zhang’s affiliation from "Pritzker School of Molecular Engineering, The University of Chicago, Chicago, USA" to "Pritzker School of Molecular Engineering, The University of Chicago, Chicago, USA;Argonne National Laboratory, Lemont, USA." Argonne National Laboratory was left off the original publication. © The Author(s) 2025.

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Enhanced self-adaptive evolutionary algorithm for numerical optimization

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Journal of Systems Engineering and electronics 2012年第6期23卷 921-928页

作者： Yu Xue YiZhuang Tianquan Ni Jian Ouyang ZhouWang School of Computer Science and Technology Nanjing University of Aeronautics and Astronautics Nanjing 210016 E R. China No.723 Institute of China Shipbuilding Industry Corporation Yangzhou 225001 E R. China Science and Technology on Electron-optic Control Laboratory Luoyang 471000 P. R. China

There are many population-based stochastic search algorithms for solving optimization problems. However, the universality and robustness of these algorithms are still unsatisfactory. This paper proposes an enhanced self-adaptiveevolutionary algorithm （ESEA） to overcome the demerits above. In the ESEA, four evolutionary operators are designed to enhance the evolutionary structure. Besides, the ESEA employs four effective search strategies under the framework of the self-adaptive learning. Four groups of the experiments are done to find out the most suitable parameter values for the ESEA. In order to verify the performance of the proposed algorithm, 26 state-of-the-art test functions are solved by the ESEA and its competitors. The experimental results demonstrate that the universality and robustness of the ESEA out-perform its competitors.

关键词： self-adaptive numerical optimization evolutionary al-gorithm stochastic search algorithm.

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The description of characters of matrix-block multielement wavelet wraps according to a dilation matrix

The description of characters of matrix-block multielement w...

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2011 International Conference on Future Communication, Computing, Control and Management, ICF4C 2011

作者： Hu, Ruihua Li, Xianghai Dept. of Electron and Electricity Nanyang Institute of Technology Nanyang 473004 China Dept. of Computer Science Nanyang Institute of Technology Nanyang 473004 China

ISBN: (纸本)9783642273100

Wavelet analysis has become a developing branch of mathematics for over twenty years. In this paper, the notion of matrix-valued multiresolution analysis of space L 2 (R n , C rxr ) is introduced. A method for constructing biorthogonal matrix-valued trivariate wavelet packets is developed and their properties are discussed by means of time-frequency analysis method, matrix theory and functional analysis method. Three biorthogonality formulas concerning these wavelet packets are provided. Finally, new Riesz bases of space L 2 (R n , C rxr ) is obtained by constructing a series of subspaces of biorthogonal matrix-valued wavelet packets. © 2012 Springer-Verlag GmbH.

关键词： Filter banks

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Nonlinear Fusion Using Quantized Measurements and Cubature Particle Filter

Nonlinear Fusion Using Quantized Measurements and Cubature P...

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第25届中国控制与决策会议

作者： Xianfeng Tang Binlei Guan Quanbo Ge Xiaoliang Xu Modem Educational Technology Center Zhejiang University School of Electron and Information Engineering Ningbo University of Technology Institute of System Science and Control Engineering Hangzhou Dianzi University School of Computer Science and Technology Hangzhou Dianzi University

ISBN: (纸本)9781467355322

Consider the nonlinear estimation fusion problem for dynamic stochastic process in sensor networks. Due to bandwidth or energy constraints, only quantized messages of the original information from local sensor are available. For a class of vector state-vector observation model, a quantized cubature particle filter (CPF) method is presented in this paper. Firstly, each sensor quantizes each component of the measurement verbatim and sends to fusion center (FC). Subsequently, FC compresses the quantized messages from local sensors in best linear unbiased estimation (BLUE) fusion rule. Finally, CPF is used to obtain a state estimation. computer simulations show effectiveness of the developed method.

关键词： Nonlinear fusion Wireless sensor network Quantization Cubature particle filter

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