检索结果-内蒙古大学图书馆

electrical engineering and Automatic Control (ICEEAC), International Conference on

作者： Oumaymah Elamri Alla Eddine Toubal Maamar Charaf Chermite Moulay Rachid Douiri Mostefa Kermadi Saad Mekhilef LAMIGEP multidisciplinary research laboratory École Marocaine des Sciences de l'Ingénieur (EMSI) of Marrakech Marrakech Morocco Department of Electrical Systems Engineering Faculty of Technology University of M'hamed Bougara of Boumerdes Boumerdes Algeria Physics Department Control and Computer Science for Intelligent Systems and Green Energy Faculty of Science and Technology Cadi Ayyad University Marrakech Morocco School of Engineering University of Leicester Leicester United Kingdom Power Electronics and Renewable Energy Research Laboratory (PEARL) Kuala Lumpur Malaysia Swinburne University of Technology Hawthorn Vic Australia

ISBN: (数字)9798350349740

ISBN: (纸本)9798350349757

The utilization of solar energy in grid-connected photovoltaic installations has become increasingly significant. This article introduces a photovoltaic system seamlessly integrated with a three-phase network. The system employing a five-level Neutral Point Clamped (NPC) voltage source inverter is designed for a single-step connection to enhance power quality in the distribution network. The control technique employed for the efficient functioning of the photovoltaic system is based on the notion of instantaneous reactive power. Notably, this strategy is straightforward, operates the system throughout the day, and eliminates the need for Phase-Locked Loop (PLL) usage. The Pulse-Width Modulated (PWM) Current Controller sends switching signals to the NPC multilevel inverter, which does a great job of dynamic performance under steady-state and transient situations. The proportional-integral controller regulates the voltage of the Uninterruptible Power Supply DC bus capacitors. The proposed system undergoes comprehensive simulation validation under various irradiation levels.

关键词： Photovoltaic systems Reactive power Voltage source inverters Switches Solar energy Steady-state Transient analysis

来源：评论

学校读者我要写书评

暂无评论

Convergence and Stability of Coupled Belief-Strategy Learning Dynamics in Continuous Games

arXiv

引用

arXiv 2022年

作者： Wu, Manxi Amin, Saurabh Ozdaglar, Asuman The School of Operations Research and Information Engineering Cornell University United States Laboratory for Information and Decision Systems Massachusetts Institute of Technology United States Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology United States

We propose a learning dynamics to model how strategic agents repeatedly play a continuous game while relying on an information platform to learn an unknown payoff-relevant parameter. In each time step, the platform updates a belief estimate of the parameter based on players' strategies and realized payoffs using Bayes's rule. Then, players adopt a generic learning rule to adjust their strategies based on the updated belief. We present results on the convergence of beliefs and strategies and the properties of convergent fixed points of the dynamics. We obtain sufficient and necessary conditions for the existence of globally stable fixed points. We also provide sufficient conditions for the local stability of fixed points. These results provide an approach to analyzing the long-term outcomes that arise from the interplay between Bayesian belief learning and strategy learning in games, and enable us to characterize conditions under which learning leads to a complete information equilibrium. Copyright © 2022, The Authors. All rights reserved.

关键词： Dynamics

来源：评论

学校读者我要写书评

暂无评论

NiO Junction Termination Extension for Ga2O3 Devices: High Blocking Field, Low Capacitance, and Fast Switching Speed

NiO Junction Termination Extension for Ga2O3 Devices: High B...

引用

International Symposium on Power Semiconductor Devices and Ics (ISPSD)

作者： Ming Xiao Boyan Wang Ruizhe Zhang Qihao Song Joseph Spencer Zhonghao Du Yuan Qin Kohei Sasaki Han Wang Marko Tadjer Yuhao Zhang Center for Power Electronics Systems Virginia Tech Blacksburg USA U.S. Naval Research Laboratory Washington DC USA Department of Electrical and Computer Engineering University of Southern California Los Angeles USA Novel Crystal Technology Inc. Saitama Japan

This work investigates the blocking electric field, capacitance, and switching speed of the p-type NiO based junction termination extension (JTE) for vertical Ga 2 O 3 devices. The JTE comprises multiple NiO layers sputtered on the surface of Ga 2 O 3 drift region, the acceptor concentration and length of which are carefully optimized. This NiO JTE enabled a breakdown voltage over 3 kV in vertical Ga 2 O 3 diodes with a parallel-plate junction field of 4.2 MV/cm. Large-area Ga 2 O 3 p-n diodes with a current over 1 A were fabricated to evaluate the JTE's capacitance and switching characteristics. The JTE accounts for only, ~11 % of the junction capacitance of this 1 A diode, and the percentage is expected to be even smaller for higher-current diodes. The turn-ON/OFF speed and reverse recovery time of the diode are comparable to commercial SiC Schottky barrier diodes. These results show the good promise of NiO JTE as an effective edge termination for Ga 2 O 3 power devices.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Controllable Multi-Level Switching of Optical Phase Change Materials via Microheater Temperature Profile engineering

Controllable Multi-Level Switching of Optical Phase Change M...

引用

Conference on Lasers and Electro-Optics (CLEO)

作者： Hongyi Sun Chuanyu Lian Francis Vásquez-Aza Yi-Siou Huang Steven A. Vitale Ichiro Takeuchi Juejun Hu Nathan Youngblood Georges Pavlidis Carlos A. Ríos Ocampo Department-of Materials Science & Engineering University of Maryland College Park MD USA Institute for Research in Electronics and Applied Physics University of Maryland College Park MD USA Department of Mechanical Engineering University of Connecticut Storrs CT USA Advanced Materials and Microsystems Group MIT Lincoln Laboratory Lexington MA USA Department of Physics Quantum Materials Center University of Maryland College Park MD USA Department of Materials Science & Engineering MIT Cambridge MA USA Electrical & Computer Engineering Department The University of Pittsburgh Pittsburgh PA USA

We demonstrate doped-silicon-on-insulator microheaters with triangle-like temperature profiles. Such devices control the hotspot size and temperature and, thus, the area that undergoes amorphization or crystallization... 详细信息

ISBN: (纸本)9798350369311

关键词： Phase change materials Temperature Optical switches Optical device fabrication Control systems Metasurfaces Optical materials Tuning Optical pulses Switching circuits

来源：评论

学校读者我要写书评

暂无评论

Black Phosphorus Ink Formulation for Aerosol Jet Printing of Planar and Conformal Optoelectronics

Black Phosphorus Ink Formulation for Aerosol Jet Printing of...

引用

International Workshop on Thin Films for Electronics, Electro-Optics, Energy and Sensors 2022

作者： Muramutsa, Florent Pedersen, Samuel V. Logan, Jonathan Eppel, Michael Busuladzic-Begic, Mia Eixenberger, Joshua Wood, Joshua D. Ouchen, Fahima Subbaraman, Harish Husko, Chad Jaques, Brian J. Heckman, Emily M. Estrada, David Micron School of Materials Science and Engineering Boise State University BoiseID83725 United States Iris Light Technologies Inc. ChicagoIL60622 United States Department of Physics Boise State University BoiseID83725 United States Center for Advanced Energy Studies Idaho FallsID83401 United States Promethean Consulting LLC Oak ParkIL60302 United States Air Force Research Laboratory Sensors Directorate Wright-Patterson AFBOH45433 United States Department of Electrical and Computer Engineering Boise State University BoiseID83725 United States Idaho National Laboratory Idaho FallsID83402 United States

ISBN: (纸本)9781510660618

The ink formulation process of stable black phosphorus (BP) inks for aerosol jet printing (AJP) is presented. Formulating BP stable photonic inks involves tailoring the flake size and ink solvents to AJP. Single crystal BP inks were used to print both backgated FET devices with a resistivity as low as 105Ω-cm and the resulting thin films showed photoluminescence emission in the NIR regime paving the way to printed optoelectronic devices. © 2023 SPIE. All rights reserved.

关键词： Optoelectronic devices

来源：评论

学校读者我要写书评

暂无评论

Reference-Plane Invariant Free Space Dielectric Material Characterization up to 330 GHz

Reference-Plane Invariant Free Space Dielectric Material Cha...

引用

URSI Atlantic Radio Science Conference (URSI AT-RASC)

作者： Salvador Moreno-Rodríguez Mario Pérez-Escribano Sergio Ortiz-Ruiz Antonio Alex-Amor Borja Plaza-Gallardo Francisco G. Ruiz Carlos Molero Department of Signal Theory Telematics and Communications Research Centre for Information and Communication Technologies (CITIC-UGR) University of Granada Granada Spain Telecommunication Research Institute (TELMA) Universidad de Málaga E.T.S. Ingeniería de Telecomunicación Málaga Spain Department of Electronics and Computer Science Pervasive Electronics Advanced Research Laboratory (PEARL) University of Granada Granada Spain Department of Electrical and Systems Engineering University of Pennsylvania Philadelphia Pennsylvania United States Radiofrequency Area National Institute for Aerospace Technology (INTA) Madrid Spain

ISBN: (数字)9789463968102

ISBN: (纸本)9798350360257

This paper describes the process followed to implement a system to characterize the complex permittivity of materials in the 10-330 GHz frequency band. Firstly, the method used and the system’s calibration process are shown, consisting of a double calibration TRL (Thru-Reflect-Line) and GRL (Gated-Reflect-Line). Subsequently, a smoothing technique is used to improve the accuracy of the results. Finally, a test is performed on quartz and glass fiber samples, showing that the results are quite reliable over the entire measured bandwidth.

关键词： Accuracy Smoothing methods Permittivity measurement Glass Bandwidth Position measurement Reflection

来源：评论

学校读者我要写书评

暂无评论

Networked micro-grid topologies for transactive energy management system: An overview and future perspectives

引用

Scientific African 2024年 26卷

作者： Torto, Stephen Oko Gyan Pachauri, Rupendra Kumar Singh, Jai Govind Khan, Baseem Ali, Ahmed Electrical Cluster School of Advanced Engineering UPES Uttarakhand Dehradun 248007 India Miyan Research Institute International University of Business Agriculture and Technology Dhaka 1230 Bangladesh Department of Energy Environment and Climate Change School of Environmental Resource and Development Asian Institute of Technology Thailand Department of Electrical and Computer Engineering Hawassa University Hawassa 05 Ethiopia Department of Electrical and Electronic Engineering Technology Faculty of Engineering and the Built Environment university of Johannesburg South Africa Center for Renewable Energy and Microgrids Huanjiang Laboratory Zhejiang University Zhejiang 311816 China

Networked micro-grid topologies are important for several reasons. First, they make it possible to connect decentralized energy sources like solar PV installations, micro- and mini-scale wind turbines, etc., to the main power grid. This has the potential to lessen the grid's reliance on fossil fuels while also improving its efficiency and dependability. Second, micro-grids can provide a level of resilience to the grid, as they can operate independently during power outages or other disruptions. This can be particularly important in disaster-prone areas or for critical infrastructure such as hospitals or emergency services. The problems that arise from managing the current or conventional power grid can be alleviated, in part, with the use of TEM. This study will introduce TEM and discuss its usefulness in several contexts, including the energy market, grid design, and functioning. Also, discuss the various existing power generation players involved in the development of market structure frameworks. This study concludes and highlights the significant role and effectiveness of energy system schemes for power exchange networked management systems. In addition, to the future perspective and power demand, attention to the de-centralized micro-grid model makes a comparison to the centralized and partially de-centralized topologies based on the Pros and Cons of the present study. In summary, networked micro-grid topologies play a crucial role in improving grid efficiency and dependability, ensuring continued service during blackouts, and fostering the widespread use of renewable energy sources. © 2024

关键词： Decentralized micro-grids Energy market Networked micro-grid Transactive energy management

来源：评论

学校读者我要写书评

暂无评论

Aluminum Nitride Ring Resonator-Coupled Spin Defects in Hexagonal Boron Nitride for Integrated Quantum Photonics

Aluminum Nitride Ring Resonator-Coupled Spin Defects in Hexa...

引用

Conference on Lasers and Electro-Optics (CLEO)

作者： Henry C. Roberts Aadil Waseem Scott A. Wicker Hamza Abudayyeh Dong Seob Kim Zhida Liu Steven Randolph Xiaoqin Li Xiuling Li Department of Electrical and Computer Engineering Microelectronics Research Center The University of Texas at Austin Austin TX USA Department of Physics and Center for Complex Quantum Systems Center for Dynamics and Control of Materials and Texas Materials Institute The University of Texas at Austin Austin TX USA Center for Nanophase Materials Sciences Oak Ridge National Laboratory Oak Ridge TN USA

We report a new approach to generate waveguide-coupled emission from deterministically implanted boron vacancy spin defects in hBN using single-crystal AlN-on-sapphire ring resonators. This facilitates the eventual de... 详细信息

ISBN: (纸本)9798350369311

关键词： Boron Waveguide lasers Ring lasers Optical ring resonators Electro-optical waveguides Photonics Aluminum nitride

来源：评论

学校读者我要写书评

暂无评论

Physical origin and boundary of scalable imaging through scattering media:a deep learning-based exploration

引用

Photonics research 2023年第6期11卷 1038-1046页

作者： XUYU ZHANG SHENGFU CHENG JINGJING GAO YU GAN CHUNYUAN SONG DAWEI ZHANG SONGLIN ZHUANG SHENSHENG HAN PUXIANG LAI HONGLIN LIU School of Optical-Electrical and Computer Engineering University of Shanghai for Science and TechnologyShanghai 200093China Key Laboratory for Quantum Optics Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai 201800China Department of Biomedical Engineering The Hong Kong Polytechnic UniversityHong Kong SARChina Hong Kong Polytechnic University Shenzhen Research Institute Shenzhen 518000China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Hangzhou Institute for Advanced Study University of Chinese Academy of SciencesHangzhou 310024China Photonics Research Institute The Hong Kong Polytechnic UniversityHong Kong SARChina

Imaging through scattering media is valuable for many areas,such as biomedicine and *** progress enabled by deep learning(DL)has shown superiority especially in the model ***,there is a lack of research to physically reveal the origin or define the boundary for such model scalability,which is important for utilizing DL approaches for scalable imaging despite scattering with high *** this paper,we find the amount of the ballistic light component in the output field is the prerequisite for endowing a DL model with generalization capability by using a“one-to-all”training strategy,which offers a physical meaning invariance among the multisource *** findings are supported by both experimental and simulated tests in which the roles of scattered and ballistic components are revealed in contributing to the origin and physical boundary of the model ***,the generalization performance of the network is enhanced by increasing the portion of ballistic photons in *** mechanism understanding and practical guidance by our research are beneficial for developing DL methods for descattering with high adaptivity.

关键词： generalization boundary media

来源：评论

学校读者我要写书评

暂无评论

Dirac nodal line and pseudo-gap in 1T-VS2 single crystal

引用

Current Applied Physics 2025年 77卷 94-99页

作者： Kim, Mincheol Kim, Hyuk Jin Choi, Byoung Ki Rhee, Tae Gyu Jozwiak, Chris Bostwick, Aaron Rotenberg, Eli Lee, Sunghun Chang, Young Jun Department of Physics University of Seoul Seoul 02504 South Korea Department of Smart Cities University of Seoul Seoul 02504 South Korea Pohang Accelerator Laboratory POSTECH Pohang 37673 South Korea Department of Electrical and Computer Engineering Texas A&M University College Station 3127 TX United States Advanced Light Source (ALS) E. O. Lawrence Berkeley National Laboratory Berkeley 94720 CA United States Division of Nanotechnology and Sensorium Institute Convergence Research Institute Daegu Gyeongbuk Institute of Science & Technology (DGIST) Daegu 42988 South Korea Department of Intelligent Semiconductor Engineering University of Seoul Seoul 02504 South Korea

Vanadium disulfide (VS2), one of transition metal dichalcogenide (TMDC) family, attracts elevated interests for its charge-density wave phase transition, ferromagnetism, optoelectronic switching, and catalytic reactivity, but the topological Dirac surface states have not been observed yet. Here we report the Dirac nodal line states of VS2 single crystals via angle-resolved photoemission spectroscopy (ARPES) measurements. ARPES analysis reveals that Dirac nodal line surface states are extended from the Μ point toward the Γ point with energy of −1.1 eV. Comparison with the other vanadium chalcogenides shows monotonic energy shift of the Dirac states depending on the spin-orbit coupling strength of the chalcogen atoms. Furthermore, we studied the temperature-dependence of pseudo gaps near both the M and Γ points. Our observations provide experimental evidence of topological electronic structures, contributing to the understanding of the correlated TMDC systems and their potential in switching devices, optical saturable absorber, and electrocatalysis. © 2025 Korean Physical Society

关键词： Angle-resolved photoemission spectroscopy Charge-density wave Topological Dirac nodal line Transition metal dichalcogenide Vanadium disulfide

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：