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International Conference on European Electricity Market, EEM

作者： Ahmet Köse Ivan Sukhanov Mikk Maivel Aleksei Tepljakov Hossein Nourollahi Hokmabad Eduard Petlenkov Product development R8 Technologies OÜ Tallinn Estonia Dept. of Computer Systems Tallinn Univ. of Technology Tallinn Estonia Dept. of Electrical Power Engineering and Mechatronics Tallinn Univ. of Technology Tallinn Estonia

ISBN: (数字)9798350381740

ISBN: (纸本)9798350381757

This paper proposes a demand-side management (DSM) solution for commercial buildings to optimize energy consumption in response to fluctuating energy prices. The DSM algorithm was tested during extreme days with high electricity prices and also negative energy prices, demonstrating its ability to reduce consumption without compromising indoor comfort. The paper also discusses the practical implementation of demand response (DR) services for automatic upward and downward balancing of the energy grid automatically, highlighting the potential for third-party software to improve energy performance in the portfolio of commercial buildings without additional investments.

关键词： Energy consumption Demand side management Buildings Software as a service Europe Estimation Demand response

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Study of Partial Discharge Characteristics in Medium Voltage Cable Insulation with Internal Defect

Study of Partial Discharge Characteristics in Medium Voltage...

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International Conference on High Voltage engineering and Application, ICHVE

作者： Maninder Choudhary Ivo Palu Ivar Kiitam Muhammad Shafiq Paul Taklaja Dept. of Electrical Power Engineering & Mechatronics Tallinn University of Technology Tallinn Estonia Center for Advanced Power Systems Florida State University Tallahassee Florida USA

ISBN: (数字)9798350374988

ISBN: (纸本)9798350374995

Inception of partial discharge (PD) is an important indicator of insulation degradation in power system assets, including cables. The characteristics of PD activity measured during ongoing degradation process provide information regarding the nature and severity of insulation defects. This study investigates the behavior of PD in a medium voltage (MV) cable sample with an artificial defect developed by making a cut on the outer jacket towards the shielding that extends into the main insulation. The PD activity is measured using a high frequency current transformer. A number of PD characteristics: peak pulse height, phase of occurrence, and pulse repetition rate are extracted from the PD measurements using a local maxima-based algorithm. The behavior of the PD activity based on these characteristics is analyzed under increasing electrical stress. This study can be useful in analyzing the aging and degradation behavior of solid insulating materials.

关键词： Partial discharges Degradation Partial discharge measurement Insulation Pulse measurements Current measurement Medium voltage

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Dynamic Image Deblurring based on Crosshatch Attention Adversarial Network and Hybrid Loss

Dynamic Image Deblurring based on Crosshatch Attention Adver...

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International Conference on Advancements in Computational Sciences (ICACS)

作者： Ummama Aslam Arslan Shaukat Basim Azam Dept. of Computer and Software Engineering College of Electrical and Mechanical Engineering (CEME) National University of Sciences and Technology (NUST) Islamabad Pakistan Institute of Integrated and Intelligent Systems Griffith University Brisbane Australia

Image deblurring techniques that uses deep learning have shown great potential but due to low generalizability, noise immunity and the correlation among different pixels is not addressed in detail that results in unwanted artifact that appears in the deblurred image. To tackle this problem an end-to-end approach is proposed for the recovery of sharp image from blurred one without the estimation of blur kernel. A special type of attention module known as crosshatch attention is used after Residual Block of Generator model for removing noise and for the collection of correlation of different pixels in an image. Hybrid Loss function is defined which focus on different part of image and improve edges and texture details. The performance of the model for deblurring is measured on GoPro dataset. Our proposed model has slightly higher objective and subjective evaluation i-e PSNR, SSIM value and the visual results.

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Next-Gen Decoding: Non-Binary LDPC Algorithms for Emerging Power Line and Visible Light Communications

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IEEE Access 2025年 13卷 101224-101245页

作者： Waheed Ullah Fengfan Yang Kwonhue Choi Dushantha Nalin K. Jayakody School of Electrical and Information Engineering University of the Witwatersrand Johannesburg South Africa College of Electronic and Information Engineering Nanjing University of Aeronautics and Astronautics Nanjing China School of Computer Science and Engineering Yeungnam University Gyeongsan South Korea COPELABS Lusófona University Lisbon Portugal LASI Center of Technology and Systems (UNINOVA-CTS) Costa de Caparica Portugal CIET/EEE Faculty of Engineering Sri Lanka Institute of Information Technology Malabe Sri Lanka

Non-Binary Low-Density Parity-Check (LDPC) codes have gained significant attention due to their remarkable error correction capabilities in various communication systems. Decoding algorithms play a pivotal role in realizing the potential of non-binary LDPC codes. This paper provides a comprehensive review and analysis of non-binary LDPC decoding algorithms, focusing on their efficiency, complexity, and performance. Furthermore, recent advancements and innovations in non-binary LDPC decoding algorithms are discussed, such as improved message passing strategies, layered decoding techniques, and adaptive algorithms. The review also highlights challenges and open research directions in non-binary LDPC decoding, such as mitigating error floors, reducing decoding complexity, and integrating with emerging communication technologies. Finally, the paper draws conclusions on the current state of non-binary LDPC decoding algorithms, underscoring their promising applications in wireless communication, visible light communication (VLC), and power line communication (PLC). Simulation results demonstrate a marked improvement in bit error rate performance for both VLC and PLC systems, highlighting the practical potential of these advanced decoding techniques.

关键词： Codes Decoding Reliability Iterative decoding Symbols Visible light communication Logic Computational complexity Reviews Message passing

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SS-SFR: Synthetic Scenes Spatial Frequency Response on Virtual KITTI and Degraded Automotive Simulations for Object Detection 26

SS-SFR: Synthetic Scenes Spatial Frequency Response on Virtu...

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26th Irish Machine Vision and Image Processing Conference, IMVIP 2024

作者： Jakab, Daniel Braun, Alexander Agnew, Cathaoir Mohandas, Reenu Deegan, Brian Michael Molloy, Dara Ward, Enda Scanlan, Anthony Eising, Ciarán Dept. of Electronic and Computer Engineering University of Limerick Castletroy LimerickV94 T9PX Ireland Faculty of Electrical Engineering & Information Technology University of Applied Sciences Düsseldorf40476 Germany Dept. of Electrical and Electronic Engineering University of Galway GalwayH91 TK33 Ireland Valeo Vision Systems GalwayDY1 22DJ Ireland Lero the Science Foundation Ireland Research Centre for Software University of Limerick LimerickV94 T9PX Ireland

ISBN: (纸本)9781837242672

Automotive simulation can potentially compensate for a lack of training data in computer vision applications. However, there has been little to no image quality evaluation of automotive simulation and the impact of optical degradations on simulation is little explored. In this work, we investigate Virtual KITTI and the impact of applying variations of Gaussian blur on image sharpness. Furthermore, we consider object detection, a common computer vision application on three different state-of-the-art models, thus allowing us to characterize the relationship between object detection and sharpness. It was found that while image sharpness (MTF50) degrades from an average of 0.245cy/px to approximately 0.119cy/px;object detection performance stays largely robust within 0.58%(Faster RCNN), 1.45%(YOLOF) and 1.93%(DETR) across all respective held-out test sets. © This is an open access article published by the IET under the Creative Commons Attribution License (http://***/licenses/by/3.0/)

关键词： Automobile simulators

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Design and Experiment of a Four-Fingered Robotic Hand for T-FLoW 4.0 humanoid robot

Design and Experiment of a Four-Fingered Robotic Hand for T-...

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International Electronics Symposium (IES)

作者： Kevin Ilham Apriandy Bima Sena Bayu Dewantara Raden Sanggar Dewanto Dadet Pramadihanto Catoer Ryando Dept. of Informatics and Computer Engineering Robotics and Intelligent Systems Center (RoISC) Politeknik Elektronika Negeri Surabaya (PENS) Dept. of Mechanical and Energy Engineering Robotics and Intelligent Systems Center (RoISC) Politeknik Elektronika Negeri Surabaya (PENS) Dept. of Electrical Engineering Politeknik Elektronika Negeri Surabaya (PENS)

In this research study, we present a novel design of a four-fingered robotic hand for T-FLoW 4.0 humanoid robot along with its experiments to validate its grasping performance. Our proposed robotic hand designed with four fingers and five Degree-of-Freedom (DoF), with a configuration of a thumb, index, middle, and ring fingers to remain within the criteria of an anthropomorphic type robot hand. Our hand is built with a modular design on each finger and its mechanism, allowing for easy assembly and achieving a compact hand result. Main controller Arduino Mega implement the system for grasping movement, and then PCA9685 PWM controller get the hand movement instructions from it and generates the required PWM signal for the servo motors. The process of manufacturing the hand involves 3D printing technology to produce hands with a realistic appearance, and use PLA filament material achieve lightweight, affordable, and easy-to-maintain outcomes. The grasping experimental results show that our proposed robotic hand could perform basic grasping movements on household objects. With the use of Cini’s taxonomy of grasp as the hand functionality standard, we achieved a success rate of 8 out of 14 tests conducted.

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Super-Resolution of Optical Thickness Measurement employing Correlation-based Spectrum Estimation

Super-Resolution of Optical Thickness Measurement employing ...

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CLEO: Science and Innovations in CLEO 2024, CLEO: S and I 2024 - Part of Conference on Lasers and Electro-Optics

作者： Yamaguchi, Naoki Yamauchi, Takanori Kitamura, Takayuki Imaki, Masaharu Yamashita, Shinji Set, Sze Yun Research Center for Advanced Science and Technology The Univ. of Tokyo Komaba 4-6-1 Meguro Tokyo153-8904 Japan Information Technology R&D Center Mitsubishi Electric Corporation Ofuna 5-1-1 Kanagawa Kamakura247-8501 Japan Dept. of Electrical Engineering and Information Systems The Univ. of Tokyo Hongo 7-3-1 Bunkyo Tokyo113-8656 Japan

The quantification of optical thickness using a wavelength swept source is pivotal for applications such as Swept Source Optical Coherence Tomography (SS-OCT) and Frequency-Modulated Continuous-Wave (FMCW) lidar, demanding sub-millimeter range resolution. To enhance resolution, we advocate the incorporation of a correlation-based spectrum estimation method in FMCW optical thickness measurement. Our approach successfully resolved a notable 0.59 mm of thickness with a 1.7 nm wavelength sweep, surpassing the 0.61 mm theoretical limit imposed by Fourier transform. © Optica Publishing Group 2024

关键词： Thickness measurement

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Analysis Native Oxide Formation Kinetics in Nanometer-Scale NbTiN Thin Films 18

Analysis Native Oxide Formation Kinetics in Nanometer-Scale ...

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18th IEEE Nanotechnology Materials and Devices Conference, NMDC 2023

作者： Nazib, Sami A. Reymatias, Mark V. Hutchins-Delgado, Troy A. Gharde, Shruti I. Sommer, Erika M. Jamil, Erum Smolyakov, Gennady A. Lu, Tzu-Ming Ivanov, Sergei A. Komissarov, Ivan Sobolewski, Roman Osinski, Marek University of New Mexico Center for High Technology Materials AlbuquerqueNM United States Center for Integrated Nanotechnologies Sandia National Laboratories AlbuquerqueNM United States Center for Integrated Nanotechnologies Los Alamos National Laboratory AlbuquerqueNM United States University of Rochester Dept. of Electrical and Computer Engineering RochesterNY United States

Comprehensive characterization techniques are applied to investigate the kinetics of native oxide formation on nanometer-scale films of NbTiN deposited using a physical vapor deposition process on silicon substrates c... 详细信息

ISBN: (纸本)9798350335460

关键词： X ray photoelectron spectroscopy

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Super-Resolution of Optical Thickness Measurement employing Correlation-based Spectrum Estimation

Super-Resolution of Optical Thickness Measurement employing ...

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2024 Conference on Lasers and Electro-Optics, CLEO 2024

ISBN: (纸本)9781957171395

关键词： Thickness measurement

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Influence of Battery Storage systems on the Flicker and Harmonic Emission of Prosumer Households

Influence of Battery Storage Systems on the Flicker and Harm...

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International Conference on Harmonics and Quality of Power

作者： Robert Stiegler Jan Meyer Jiří Drápela Leoš Kukačka Institute of Electrical Power Systems and High Voltage Engineering Technische Universität Dresden Dresden Germany Dept. of Electrical Power Engineering Brno University of Technology Brno Czechia Institute of Mechatronics and Computer Engineering Technical University of Liberec Liberec Czechia

ISBN: (数字)9798350382563

ISBN: (纸本)9798350382570

Battery storage systems are increasingly being used in households with renewable energy generation in order to optimize the exchange of electrical energy with the network. This raises the question of how such battery storage systems affect flicker emission due to the additional power dynamics. This paper examines the influence of two commercial battery storage systems on flicker and harmonic emission using reproducible laboratory experiments. The results show that both systems have a small, but significant influence on flicker emission. The causes of the behavior are analyzed and shown. These results contribute to the understanding of power quality challenges in the context of increasing distributeed power generation and prosumer households.

关键词： Fluctuations Voltage measurement Switches Harmonic analysis Distortion Electromagnetic compatibility Inverters Batteries Harmonic distortion Power harmonic filters

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