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检索条件"机构=Dept. of Electrical and Computer Engineering and Technology"

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A Satisfibility based Watermarking Approach for Hardware Security in High Level Synthesis 20

A Satisfibility based Watermarking Approach for Hardware Sec...

引用

20th IEEE India Council International Conference, INDICON 2023

作者： Cs, Ashwin Poddar, Vipul Roy, Suchismita National Institute of Technology Dept. of Computer Science & Engineering Durgapur India National Institute of Technology Dept. of Electrical Engineering Durgapur India

ISBN: (纸本)9798350305593

In today's world Time-To-Market (TTM) plays a very important role in the success of any given chip. To reduce the TTM, many manufacturers rely on reusable IP cores. These reusable Intellectual Property(IP) cores may come with a lot of unforeseen security issues related to reliability and verifiable point of origin. This paper presents a way of watermarking to reduce these security threats by embedding the designer's watermark into an IP design at High Level Synthesis (HLS) stage. A boolean Satisfibility (SAT) based approach is proposed which has no additional area and performance overhead. © 2023 IEEE.

关键词： High Level Synthesis Satisfibility Watermarking

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Achieving Magnetic Force and Cogging Torque Reduction in a Permanent Magnet Generator with Concentrated Slot Technique and Pole Arc Optimization at Magnet Edge 27

Achieving Magnetic Force and Cogging Torque Reduction in a P...

引用

27th International Conference on electrical Machines and Systems, ICEMS 2024

作者： Abduh, Syamsir Nur, Tajuddin Muljadi, Eduard Herlina Institut Teknologi Pln Dept. of Electrical Engineering Indonesia Universitas Katolik Indonesia Atma Jaya-Jakarta Dept. of Electrical Engineering Indonesia Auburn University Dept. of Electrical and Computer Engineering United States Sriwijaya University Dept. of Electrical Engineering South Sumatera Indonesia

ISBN: (纸本)9784886864406

The objective of this study is to minimize cogging torque in permanent magnet machines (PMMs) utilized for renewable energy generation. The primary concern identified is the interaction between the magnetic flux of the rotor and the slot opening of the stator, which interferes with rotor rotation and results in reduced efficiency. The techniques of concentrated slotting and pole arc optimization (PAO) are employed to address this issue at the magnet's edge. The study utilizes the response surface method (RSM) in conjunction with the finite element method (FEMM version 4.2) to illustrate a reduction in cogging torque by as much as 99.04% relative to the baseline model. This result underscores the capability of these techniques to substantially improve PMM performance, especially within renewable energy applications. © 2024 The Institute of electrical Engineers of Japan.

关键词： Permanent magnets

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Different MPPT Algorithms for DC-DC Converter

Different MPPT Algorithms for DC-DC Converter

引用

2025 IEEE International Students' Conference on electrical, Electronics and computer Science, SCEECS 2025

作者： Kumar, Boddepalli Hemanth Ghosh, Arnab National Institute of Technology Dept. of Electrical Engineering Rourkela India

ISBN: (纸本)9798331529833

The efficient and appropriate power flow technologies are necessary for better performance of renewable energy system applications. The comparative study of different MPPT algorithms, which are best for RES applications due to their influence on efficiency, low response time and the stability under different intervals of irradiance and temperature. When comes to this context, the key focus is evaluation of algorithms to the converter which is bidirectional by considering the desired operational conditions. The observations of this study are a forward step to optimization of systems with bidirectional converters in improving the reliability and sustainability. © 2025 IEEE.

关键词： Artificial Neural Network (ANN) Bidirectional DC-DC Converter Fuzzy Logic Control (FLC) Maximum Power Point Tracking (MPPT) Perturb and Observe (P&O) Photovoltaic (PV) Pulse Width Modulation (PWM) Renewable Energy Systems (RES)

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Design, Analysis, and Economic Study of Solar Rooftop PV Systems in Metro Rail Stations in Bangladesh 6

Design, Analysis, and Economic Study of Solar Rooftop PV Sys...

引用

6th International Conference on electrical engineering and Information and Communication technology, ICEEICT 2024

作者： Redwan, Rahat Khan, Md. Sabid Sadman, Mohtasim Mifta, Zannatul Hasan, Mahmudul Chowdhury, Nahid-Ur-Rahman Ahsanullah University of Science and Technology Dept. of Electrical and Electronic Engineering Dhaka Bangladesh Rajshahi University of Engineering and Technology Dept. of Electrical and Electronic Engineering Rajshahi Bangladesh Northern University Bangladesh Dept. of Electrical and Electronic Engineering Dhaka Bangladesh

ISBN: (纸本)9798350385779

Dhaka, the densely populated capital of Bangladesh, is addressing urban intervention challenges with a Mass Rapid Transit (MRT) system to cater to its growing population's transportation needs. The metro rail project requires 160 MWh of electricity daily. As energy demand rises in emerging countries, ensuring energy security is crucial. This study focuses on a rooftop solar PV grid-connected power system on metro rail station rooftops to address the energy demand. It delves into the design aspects and evaluates the techno-economic and environmental performances. The performance test of the rooftop solar PV system was simulated using PVsyst 7. From this project CO2 emissions savings over the 25-year project lifetime, with a total of 7585.929 tons saved per station. Per year 303.437 tCO2 and per kW 12.653 tCO2 saved from one metro station. The solar power project in question involves a total installation cost of 4,25,00,000 BDT (equivalent to 3,80,000 USD). With a commitment to sustainability, the project aims to generate a significant amount of clean energy, producing a total of 10.7 gigawatt-hours (GWh) annually. This metrics collectively affirm the viability of the system as an effective solution for addressing energy needs, concurrently diminishing reliance on fossil fuels, and fostering the adoption of sustainable energy practices. © 2024 IEEE.

关键词： Energy efficiency

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Augmented Memory Replay-based Continual Learning Approaches for Network Intrusion Detection 37

Augmented Memory Replay-based Continual Learning Approaches ...

引用

37th Conference on Neural Information Processing Systems, NeurIPS 2023

作者： Amalapuram, Suresh Kumar Channappayya, Sumohana S. Tamma, Bheemarjuna Reddy Dept. of Computer Science and Engineering Indian Institute of Technology Hyderabad India Dept. of Electrical Engineering Indian Institute of Technology Hyderabad India

ISBN: (纸本)9781713899921

Intrusion detection is a form of anomalous activity detection in communication network traffic. Continual learning (CL) approaches to the intrusion detection task accumulate old knowledge while adapting to the latest threat knowledge. Previous works have shown the effectiveness of memory replay-based CL approaches for this task. In this work, we present two novel contributions to improve the performance of CL-based network intrusion detection in the context of class imbalance and scalability. First, we extend class balancing reservoir sampling (CBRS), a memory-based CL method, to address the problems of severe class imbalance for large datasets. Second, we propose a novel approach titled perturbation assistance for parameter approximation (PAPA) based on the Gaussian mixture model to reduce the number of virtual stochastic gradient descent (SGD) parameter computations needed to discover maximally interfering samples for CL. We demonstrate that the proposed approaches perform remarkably better than the baselines on standard intrusion detection benchmarks created over shorter periods (KDDCUP'99, NSL-KDD, CICIDS-2017/2018, UNSW-NB15, and CTU-13) and a longer period with distribution shift (AnoShift). We also validated proposed approaches on standard continual learning benchmarks (SVHN, CIFAR-10/100, and CLEAR-10/100) and anomaly detection benchmarks (SMAP, SMD, and MSL). Further, the proposed PAPA approach significantly lowers the number of virtual SGD update operations, thus resulting in training time savings in the range of 12 to 40% compared to the maximally interfered samples retrieval algorithm. © 2023 Neural information processing systems foundation. All rights reserved.

关键词： Intrusion detection

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Deep Reinforcement Learning Based Grid-Forming Inverter

Deep Reinforcement Learning Based Grid-Forming Inverter

引用

2023 IEEE Industry Applications Society Annual Meeting, IAS 2023

作者： Balouji, Ebrahim Backstrom, Karl McKelvey, Tomas Chalmers University of Technology Dept. of Electrical Engineering Gothenburg Sweden Chalmers University of Technology Dept. of Computer Science and Engineering Gothenburg Sweden

ISBN: (纸本)9798350320169

This research work introduces Deep Deterministic Policy Gradient (DDPG), a type of Reinforcement Learning (RL), for grid modeling, estimating voltage and phase angle, and control method for grid-forming inverters. The aim is to develop a grid-forming inverter that sets the voltage level and frequency of the grid and mitigates voltage dips originating from faults and frequency deviation fluctuations. Unlike conventional methods for estimating setpoints for the controller loops, we do not need several chains of estimation tools such as Fast Fourier Transform (FFT), Synchronous Reference Frame (SRF), or lowpass filters. With the DDPG, we also optimize the phase lock-loop (PLL) and accurately deliver the angle for the actuation part of the inverter to generate the given reference signal. The developed method does not need exhaustive tuning of parameters such as coefficients of PID controllers and lowpass filters. We observe that the proposed method has a faster response time than the PID-based control unit (15ms compared to 50ms) for the grid-forming inverter in the case of compensating voltage dips. We also observed that the DDPG-based grid-forming inverter is more efficient in compensating continuous voltage variations and frequency deviations than a trivial PID-based version. © 2023 IEEE.

关键词： Reinforcement learning

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Energy-Based Controller Design for Decentralized AC Inverter-Base Micro-grids

Energy-Based Controller Design for Decentralized AC Inverter...

引用

2023 IEEE International Conference on Control, Electronics and computer technology, ICCECT 2023

作者： Bozorgmehrian, Mohsen Attarsharghi, Samareh Ramezani, Amin Tarbiat Modares University Dept. of Electrical and Computer Engineering Tehran Iran University of Doha for Science and Technology Dept. of Electrical Engineering Doha Qatar

ISBN: (纸本)9798350399028

Micro-grids, which utilize photo-voltaic (PV) cells, wind turbines, and batteries, are gaining widespread adoption as a viable solution for renewable and sustainable energy infrastructures. However, ensuring the reliability and stability of these power grids is critical, and several control strategies have been developed to achieve these goals. In this study, we have modeled the decentralized behavior of microgrids using the port-Hamiltonian formulation and a PI controller to control the inverter voltage and output power. To demonstrate the effectiveness of our control method, we have conducted simulations that consider both maximum and worst-case system fluctuations. © 2023 IEEE.

关键词： Hamiltonians

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Secured Full-Duplex UAV-Aided Spectrum-Sharing Network Based on NOMA 20

Secured Full-Duplex UAV-Aided Spectrum-Sharing Network Based...

引用

20th IEEE International Conference on Mobile Ad Hoc and Smart Systems, MASS 2023

作者： Hasan, Moh Khalid Yu, Shucheng Song, Min Stevens Institute of Technology Dept. of Electrical and Computer Engineering Hoboken United States

ISBN: (纸本)9798350324334

Non-Orthogonal Multiple Access (NOMA) has emerged as an effective approach for improving spectral efficiency. In addition, Unmanned Aerial Vehicle (UAV)-aided communication offers rapid deployment and flexibility in challenging environments. Studying physical layer security in these scenarios is crucial to protect sensitive data from eavesdropping in spectrum-sharing networks. Nonetheless, there is limited research on comprehensive secrecy analysis in NOMA-based spectrum-sharing networks, particularly in the context of full-duplex UAV-assisted scenarios. In this paper, we investigate the secrecy performance of a UAV-aided and full-duplex NOMA-based spectrum-sharing network. The system primarily involves a primary source communicating with a full-duplex secondary source, which then simultaneously relays combined data from both sources to the primary and secondary receivers. Considering the susceptibility of both transmission stages to an external eavesdropper, the secondary source employs artificial jamming to enhance secrecy for both primary and secondary users. We analytically derive the ergodic secrecy achievable rate (ESAR) for the primary and secondary networks. The closed-form expressions are obtained by characterizing the channels' probabilistic nature while considering the Nakagami-m fading properties of each channel. Through our analysis and Monte Carlo simulations, we demonstrate that our proposed scheme achieves a positive ESAR and outperforms benchmark schemes relying on OMA. © 2023 IEEE.

关键词： Antennas

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Feature Extraction Based Acoustic Signal Detection in a Cost Effective Φ-OTDR System 2

Feature Extraction Based Acoustic Signal Detection in a Cost...

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2nd International Conference on Microwave, Optical and Communication engineering, ICMOCE 2023

作者： Verma, Shruti Mathew, Jimson Gupta, Sumanta Indian Institute of Technology Patna Dept. of Electrical Engineering India Indian Institute of Technology Patna Dept. of Computer Science and Engineering India

ISBN: (纸本)9798350321609

The paper presents an experimental demonstration of acoustic signal detection in a phase-optical time domain reflectometer (Φ-OTDR) system based on feature extraction. A commercially available off-the-shelf distributed feedback (DFB) laser is used as a light source with a minimum of 25kHz of linewidth. Also, a low sampling rate (60MS/s) data acquisition (DAQ) system is used to collect the backscattered traces. Using the digital signal processing (DSP) technique, the noisy signal from the Φ-OTDR system is processed to extract the different features of the signal. The location of the acoustic signal source is identified based on variance along the fiber length. Besides, power spectral density at that perturbed location is estimated to determine the acoustic signals frequencies. Using this low cost experimental set-up, the location of the acoustic signal source having 100Hz, 125Hz, and 150Hz frequencies were successfully detected over a 1 km of fiber length. © 2023 IEEE.

关键词： Location

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Detection and Classification of Skin Cancer Using YOLOv8n 11

Detection and Classification of Skin Cancer Using YOLOv8n

引用

11th International Conference on electrical engineering, computer Science and Informatics, EECSI 2024

作者： Riyadi, Munawar A Ayuningtias, Adela Isnanto, R Rizal Universitas Diponegoro Dept. of Electrical Engineering Semarang Indonesia Universitas Diponegoro Dept. of Computer Engineering Semarang Indonesia

ISBN: (纸本)9798350355314

Skin cancer is a disease caused by the growth of abnormal cells in skin tissues. The World Health Organization (WHO) has recorded an 88% increase in deaths due to skin cancer caused by exposure to ultraviolet rays. Currently, in the medical field, the diagnosis of skin cancer involves a biopsy process, which requires considerable time and cost. Therefore, this study aims to develop a system for detecting and classifying skin cancer based on the shape of skin lesions using the You Only Look Once version 8 nano (YOLOv8n), which can detect lesions rapidly. The dataset used is ISIC 2019, comprising of 4289 images of cancerous skin lesions divided into 9 classes: Basal Cell Carcinoma, Squamous Cell Carcinoma, Melanoma, Actinic Keratosis, Dermatofibroma, Nevus, Seborrheic Keratosis, Pigmented Benign Keratosis, and Vascular Lesion. Experimental results show that the designed system performs well in detecting and classifying the lesions, achieving an overall accuracy of 93.5%, with a Precision of 93.5%, Recall of 93.7%, and an F1-Score of 93.5%. © 2024 IEEE.

关键词： Lung cancer

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