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Printed RGW cascaded 3-dB coupler with enhanced performance for millimeter wave applications

Printed RGW cascaded 3-dB coupler with enhanced performance ...

引用

2023 International Telecommunications Conference, ITC-Egypt 2023

作者： Abdelraheem, Mohammad A. Ali, Mohamed Mamdouh M. Sebak, Abdel Razik Concordia University Dept. Electrical and Computer Engineering Montreal Canada Assiut University Dept. Electrical Engineering Assiut Egypt

ISBN: (纸本)9798350326062

This paper introduces a printed ridge gap waveguide (PRGW) hybrid coupler for millimeter wave applications in the Ka-band. The coupler achieves 33% bandwidth with more than 15 dB isolation and return losses. A small amplitude and phase imbalances of less than 0.3 dB and 3 degrees, are obtained, respectively by applying a combined design of two individual 8.34 dB couplers in cascaded manner. Simulation results are compared with other works from literature assisting the improved performance of the proposed design. © 2023 IEEE.

关键词： Millimeter waves

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An Energy-Efficient Design of a Grid-tied PV System Wielding the Roof Area of a University in Dhaka with Net Metering Scheme

An Energy-Efficient Design of a Grid-tied PV System Wielding...

引用

2024 International Conference on Innovations in Science, engineering and technology, ICISET 2024

作者： Debnath, Sourav Rabbi, Fazley Khan, Ashik Reedoy, Mahamud Hasan Islam, Azharul Islam, Md. Shiful Bangladesh University of Business and Technology Dept. of Electrical and Electronic Engineering Dhaka1216 Bangladesh European University of Bangladesh Dept. of Electrical and Electronic Engineering Dhaka1216 Bangladesh Ahsanullah University of Science and Technology Dept. of Electrical and Electronic Engineering Dhaka1208 Bangladesh

ISBN: (纸本)9798350355499

Meeting the exceptionally high energy demands of the current world has been proven to be exceedingly challenging with limited non-renewable resources like fossil fuels, mining, and nuclear fuel. Understanding this acute limitation, a growing shift towards renewable energy sources is occurring with solar energy emerging as a superior alternative. This research focuses on designing and evaluating an energy-efficient PV system installed on the roof of a private university named European University of Bangladesh (EUB) located in Dhaka, Bangladesh to meet its electricity demand. The viability of the proposed system is evaluated in terms of energy efficiency analysis, economic inspection and environmental impact. Under standard test conditions (STC), the proposed system can generate 303.2 MWh of electricity annually. This generated electricity can consummate the energy demand of the building and the surplus power can be sold to the national electricity grid. According to the 'Net Metering Guideline-2018', an estimated BDT of 3. 6 6 lac can be profited annually by selling electricity to the grid. The most alluring feature of the proposed system is that it offers an astonishingly cheap 'Cost of Energy' (COE) of 5.23 BDT/kWh. The novelty of this optimized rooftop PV design is that it is practically implementable, offers economical COE, is nearly able to meet the building's electricity demand and is a profit-making project under the Net Metering Guideline. Therefore, this research is an ideal blueprint to emulate similar rooftop PV systems by other educational institutions, contributing to the broader adoption of SDG7 goals. © 2024 IEEE.

关键词： Solar energy

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Software Code De-Compilation Techniques and Approaches: A Comparative Study 25

Software Code De-Compilation Techniques and Approaches: A Co...

引用

25th International Arab Conference on Information technology, ACIT 2024

作者： Fawareh, Hamed Al-Smadi, Yazan Hassan, Mohammad Fawareh, Faid AlNoor Elrashidi, Ali Zarqa University Dept. of Software Engineering Jordan Zarqa University Dept. of Computer Science Jordan Zarqa University Dept. Of Mathmitical Science Jordan University of Business and Technology Dept. of Electrical Engineering Jeddah21432 Saudi Arabia

ISBN: (纸本)9798331540012

De-compilation is the process of executable files as input where the de-compilation process tries to get away the source code, or the majority of it, if the file's source code is lost or damaged for whatever cause. De-compilation has many uses such as code recovery, security testing, and errors corrections, however, de-compilation is cautious since it depends on certain approaches and techniques. Nowadays de-compilation done by many automated and semi-automated tools, but the accuracy and the efficiency of it depend on the proposed approaches and techniques to stand in front of reengineering challenges. This paper aims to highlight up-to-date prior contributions in the field where 8 published research papers from May 2020 until May 2023 were collected to investigate the state-of-art. As a result, some of the researchers tend to develop their own tools and others tend to use popular automated with different approaches and techniques where the majority of the researchers focused on C, C++, and JAVA programming languages where 50% were de-compilation on C language. © 2024 IEEE.

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An Improved One-Dimensional Space Vector Modulation for Three-Phase Five-Level Cascaded H-Bridge Inverters

An Improved One-Dimensional Space Vector Modulation for Thre...

引用

2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023

作者： Zhou, Jiale Sun, Xiuhu Zhao, Tiefu Mu, Qiang Guo, Xiaoqiang Dept. of Electrical and Computer Engineering CharlotteNC United States Yanshan University Dept. of Electrical Engineering Qinhuangdao China

ISBN: (纸本)9798350316445

This paper proposes an improved one-dimensional space vector modulation (ODSVM) strategy for a three-phase five-level cascaded H-bridge (CHB) inverter. In the improved ODSVM, the voltage vectors with a common-mode voltage (CMV) of ±2Vdc/3 are replaced by their redundant vectors, and high-frequency switching events are implemented in a rotating manner. As a result, CMV attenuation and optimal line-to-line voltage harmonic spectrum are achieved for the five-level CHB inverter, surpassing the traditional phase-shifted pulse width modulation (PS-PWM) method and the traditional ODSVM scheme. Additionally, power balance among power semiconductor devices and power loss reduction are achieved, leading to efficiency improvement. Furthermore, the improved ODSVM eliminates the need for dead-time. Finally, the effectiveness of the improved ODSVM is validated through simulation and experimental results. Compared to the traditional PS-PWM method and the traditional ODSVM strategy, the improved ODSVM scheme restricts CMV to the range of Vdc/3 without sacrificing the harmonic spectrum of the line-to-line voltage. Moreover, the improved modulation method reduces power loss by approximately 30% and the line-to-line voltage total harmonic distortion (THD) by approximately 33%. Notably, the THD of the load current using the improved ODSVM is minimally affected by dead-time presence. © 2023 IEEE.

关键词： common-mode voltage (CMV) five-level cascaded H-bridge (CHB) inverter one-dimension space vector modulation Power loss reduction

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Reliability Assessment of DC Microgrid Using Markov Model 3

Reliability Assessment of DC Microgrid Using Markov Model

引用

3rd International Conference on Emerging Frontiers in electrical and Electronic Technologies, ICEFEET 2023

作者： Pan, Prateem Kumari, Rani Mandal, Rajib Kumar National Institute of Technology Dept. of Electrical Engineering Patna India Dept. of Electrical Engineering Dhanbad India

ISBN: (纸本)9798350307399

In terms of grid safety and economics, reliability is an essential component of power system design and operation. Distributed generation (DG) sources connected through power electronic converters (PECs) are the integral part of the DC microgrids. As a result, the reliability of the DC microgrid (MG) will be impacted by their failure characteristics. Therefore, the traditional methods of assessing reliability, may provide misleading data for taking the decisions for planning and operation of DC MGs. This study presents work that uses a Markov model to access the reliability of DC MG systems. Modelling the microgrid using the connectivity between the source and the loads and computing the system parameters is performed using a Markov model. A test system is considered to demonstrate the impact of faults and component failures on the reliability of DC MGs. © 2023 IEEE.

关键词： Reliability

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A Comparative Study of Machine Learning Methods for Intrusion Detection 10

A Comparative Study of Machine Learning Methods for Intrusio...

引用

10th International Conference on electrical and Electronics engineering, ICEEE 2023

作者： Sibai, Fadi N. Asaduzzaman, Abu Sibai, Ahmad Gulf University for Science and Technology Electrical & Computer Engineering Dept. Mishref Kuwait Wichita State University Electrical & Computer Engineering Dept. WichitaKS United States University of South Florida Computer Science Dept. TampaFL United States

ISBN: (纸本)9798350304299

In this work, we applied 8 machine learning (ML) techniques to detect intrusions, namely, neural networks, kNN, SVM, random forest, trees, AdaBoost, naive Bayes, and stochastic gradient descent SGD. Using the NSL-KDD data set, these ML techniques were trained and tested to correctly classify the network and operating system records of this dataset into one of 24 possible attacks. The performances of these ML methods were analyzed and compared, with the random forest method performing at the top. To the best of our knowledge, this is the first work on investigating more than 4 ML classifiers on this data set in one single work and using the same set of tools. © 2023 IEEE.

关键词： Intrusion detection

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Enhancing Cabbage Plant Protection: CNN Algorithm for Insect Identification

Enhancing Cabbage Plant Protection: CNN Algorithm for Insect...

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2024 International Conference on Information technology Research and Innovation, ICITRI 2024

作者： Senjaya, Remi Musa, Purnawarman Sularsih, Puji Novrina, Novrina Aryunani, Witari Suhartini, Suhartini Gunadarma University dept. of Informatics Engineering Depok Indonesia Gunadarma University dept. of Electrical Engineering Depok Indonesia Gunadarma University dept. of Information Technology Depok Indonesia Gunadarma University dept. of Computer Science Depok Indonesia

ISBN: (纸本)9798350376210

People frequently find it straightforward to identify insects that feed on cabbage plants based on the insects' characteristics. However, challenges arise when employing a computer for precise bug categorization and identification. The implementation of Deep Learning (DL) utilizes the Convolutional Neural Network (CNN) technique, renowned for its effectiveness in categorizing and recognizing objects in digital photo data. The CNN algorithm delivers notable results in photo identification, simulating the human visual brain's image recognition through artificial neural networks in the Python programming language. To enrich the user experience, frameworks like Keras and TensorFlow are employed in neural network development. Our research will use the CNN algorithm to determine insect species in cabbage images. Achieving high accuracy involves coupling the CNN algorithm with the VGGNet architectural model. Notably, utilizing an epoch value of 150 resulted in a 97.75% accuracy rate during the training model technique;however, the validation accuracy was slightly lower at 94.25%. The corresponding loss and validation rates were 0.0613% and 0.2945%, respectively. Moreover, based on the model (150 epochs), the testing outcomes in the study, involving 48 images beyond the dataset and incorporating additional information, resulted in an accuracy rate of 91.66%. © 2024 IEEE.

关键词： Convolutional neural networks

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Ridge Gap Waveguide Monopulse Comparator for Millimeter Wave Direction Finding Systems

Ridge Gap Waveguide Monopulse Comparator for Millimeter Wave...

引用

2023 International Telecommunications Conference, ITC-Egypt 2023

ISBN: (纸本)9798350326062

This paper introduces a comparator network for monopulse radars at the millimeter wave Ka band (26-29GHz). The network design is based on four Magic T's connected in an assembly through various bend junctions and lines. The network is implemented using gap waveguide technology where each Magic T consists of a hybrid coupler loaded with a 90° phase shifter at the output ports. The full comparator network achieves 15 dB isolation between the output ports. Less than 10° phase imbalance is achieved with 11% bandwidth. Compared time domain and frequency domain simulations show very good agreement in these results which validates the network performance. © 2023 IEEE.

关键词： Comparators (optical)

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Assessing Respiratory Changes Induced by STN-DBS in a Rat Model 19

Assessing Respiratory Changes Induced by STN-DBS in a Rat Mo...

引用

19th International Conference on Emerging Technologies, ICET 2024

作者： Inam, Shehla Teixeira, Livia De Mesquita Waqar, Muhammad Ishaq, Muhammad Iqbal, Shahzaib Ullah, Fasih Muthuswamy, Jitendran School of Biological & Health Systems Engineering Arizona State University Tempe United States Balochistan University of Engineering & Technology Dept. of Biomedical Engineering Khuzdar Pakistan National University of Computer & Emerging Sciences Dept. of Electrical Engineering Islamabad Pakistan Balochistan University of Engineering & Technology Dept. of Mechanical Engineering Khuzdar Pakistan Cecos University of It & Emerging Sciences Dept. of Electrical Engineering Peshawar Pakistan

ISBN: (纸本)9798350379587

Deep brain stimulation of the subthalamic nucleus (STN-DBS) is a technique used to treat motor symptoms of movement disorders including Parkinson's Disease (PD), a neurogenerative disorder caused by the progressive loss of striatal dopamine in the brain that leads to tremors, rigidity, and postural instability. Despite its therapeutic effects, DBS is still known to cause some non-motor symptoms including breathlessness due to unknown reasons in PD patients. In this paper, the changes in breathing rates were evaluated from peak detection for 20 trials in the time domain for the preliminary data obtained from a rat model after the application of DBS on the STN for frequencies 10Hz and 130Hz with stimulation intensities of 150 μA and 450 μA. Results revealed a significant change in breathing rates for all intensities and corresponding frequencies, confirming that the degree of disruption in breathing rate may depend on the stimulation frequency. The study may further suggest potential neuronal networks that mediate these changes. © 2024 IEEE.

关键词： Neurodegenerative diseases

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Revolutionizing Requirements Elicitation: Deep Learning-Based Classification of Functional and Non-Functional Requirements 5

Revolutionizing Requirements Elicitation: Deep Learning-Base...

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5th IEEE International Conference on Pattern Recognition and Machine Learning, PRML 2024

作者： Hanna, Grace Boyar, Nathan Garay, Nathan Maleki, Mina University of Detroit Mercy Dept. of Electrical and Computer Engineering and Computer Science DetroitMI United States

ISBN: (纸本)9798350355925

The requirements elicitation phase in the software development life cycle (SDLC) is both critical and challenging, especially in the context of big data and rapid technological advancement. Traditional approaches like workshops and proto-typing, while useful, often struggle to keep pace with the massive data volumes and rapidly changing user demands characteristic of modern technology. This paper introduces a data-driven approach that utilizes deep learning (DL) and natural language processing (NLP) to enhance the requirements elicitation process by extracting requirements and classifying them into functional and non-functional categories. Our research involves a deep neural network (DNN) trained on a large dataset of transcriptions from client/user stories. This DNN can identify whether a specific text represents a functional requirement, a non-functional requirement, or neither. Our approach shows a marked improvement over previous methods, with a 33% increase in accuracy and an 18% increase in the F1 score. These results indicate the capability for deep learning techniques to play a vital role in elicitation. © 2024 IEEE.

关键词： Software design

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