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Dissertations/Theses - Department of Electrical and Electronic Engineering: Recent submissions

Now showing items 1-20 of 775

Numerical analysis of bifacial indoor photovoltaic devices based on chalcogenide, kesterite and II-VI compounds

Roy, Dibakar (Department of Electrical and Electronic Engineering (EEE), BUET, 2023-08-26)

In this thesis, we numerically investigate the performance of bifacial photovoltaic devices under practical combinations and incident angles of a solar and cool white LED source for three separate types of absorber materials: ...
Approximate differential privacy for applications in signal processing and machine learning

Naima Tasnim (Department of Electrical and Electronic Engineering, BUET, 2023-07-08)

Large corporations, government entities and institutions such as hospitals and census bureaus routinely collect our personal and sensitive information for providing various services. A key technological challenge is designing ...
Design and analysis of a highly sensitive simple microstructured surface plasmon resonance biosensor

Hasan Masud Khan, Md. (Department of Electrical and Electronic Engineering, BUET, 2024-02-19)

A polarization-insensitive, ultra-high-sensitive, simple microstructured photonic crystal fiber(PCF) basedsurface plasmon resonance (SPR) sensor for refractive index (RI), temperature, and magnetic field detection in the ...
Analytical modeling and performance analysis of a single mode sdm-wdm communication system with multi-core optical fiber

Afzal Hossain, Md. (Department of Electrical and Electronic Engineering, BUET, 2023-01-11)

Space Division Multiplexing (SDM) technology in relation to optical fiber focusing on single-mode multi-core fiber (SM-MCF) as spatial multiplexing strategy to meet the rapidly increasing transmission bandwidth demand is ...
Energy efficient low power stanene nanoribbon topological field-effect transistor based on ferroelectric gate insulator

Roy, Dhiman (Department of Electrical and Electronic Engineering, BUET, 2022-01-22)

The dissertation presents a comprehensive study of modeling a Topological FerroelectricField-Effect Transistor (FET)that can provide energy-efficient transport by anovel switching mechanism at a low operating voltage region. ...
Densely connected U-net and auto-encoder based multi-task learning framework for nuclear segmentation in histopathological images

Fatema Ahmed (Department of Electrical and Electronic Engineering, BUET, 2023-09-25)

Histopathological image analysis provides quantitative profiles of diseased tissues and cells that enable professionals to identify cell alterations and find the actual cause of a patient's illness. Detection and segmentation ...
Multilingual audio based emotion recognition using self-supervised learning

Das, Auditi. (Department of Electrical and Electronic Engineerng (EEE), BUET, 2024-03-05)

Emotion recognition refers to the ability of a system to identify and understand human emotions based on various input sources such as speech, text, motion, facial expressions, or physiological signals. In the domain of ...
Multi-modal medical image Segmentation using convolutional neural networks with foreground background reciprocity

Shahed Ahmed (Department of Electrical and Electronic Engineering, BUET, 2023-09-16)

Precise medical image segmentation is a crucial step for proper isolation of target re-gions, such as an organ or lesion for accurate medical diagnosis, prognosis and certain medical procedures. Despite making significant ...
Design and performance analysis of nitride quantum well-based electroabsorption modulators for visible light communication

Suzit Hasan Nayem (Department of Electrical and Electronic Engineering, BUET, 2023-08-06)

Visiblelightcommunication(VLC)technologyutilizesvisiblelightforhigh-speedwire- less communication facilitating a secure and energy-efficient data transmission. This study focusesonthedesignandperformanceanalysisofnitride ...
Design of cmos-memristor hybrid ternary content addressable memory using memristor as ternary level memory cell

Masoodur Rahman Khan, Md. (Department of Electrical and Electronic Engineering, BUET, 2023-08-26)

The Content Addressable Memory (CAM) is a crucial circuit element in high-speed search engine, data base engine, network switch, artificial intelligence, neural network design etc. The Ternary Content Addressable Memory ...
Development of a domain agnostic Content-aware style-invariant Framework for disease detection From chest x-rays

Zunaed, Mohammad (Department of Electrical and Electronic Engineering (EEE), BUET., 2023-08-20)

Domain shift is a significant challenge for deep learning-based medical image analysis, particularly in the case of thoracic disease classification from chest X-rays (CXRs). Over the last decade, many domain adaptation ...
Monte carlo simulation and rate equation based analysis of algan/gan spin lasers considering the role of dislocation defects

Raiyan Chowdhury, S. M. (Department of Electrical and Electronic Engineering (EEE), BUET., 2023-11-18)

This work investigated the spin relaxation profiles and lasing performance ofGaN/AlGaN material system considering the role of defects.Spin polarizedcarriers injected into the material system through MnAs ferromagnetic ...
Design and analysis of utility scale PV plants and battery energy storage system for improving frequency stability of power grids

AtikJawad (Department of Electrical and Electronic Engineering, BUET, 2023-09-09)

The integration of renewable energy sources into existing power grids is a vital strategy to promote environmentally friendly energy production. Among these sources, solar photovoltaic (PV) systems have seen rapid adoption, ...
Modelling of high efficiency double absorber solar cell with diverse transport layer materials

Cheragee, Sheikh Hasib (Department of Electrical and Electronic Engineering, BUET. (EEE), 2023-08-07)

Double absorber solar cells have drawn interest in recent years in photovoltaic research because of their potential to boost solar energy conversion efficiency. Perovskite absorbers used in double absorber solar cells are ...
Hierarchical optimization technique for placement of battery energy storage system to improve transient frequency stability of a grid

Sabrina, Shams. (Department of Electrical and Electronic Engineering, 2023-03-29)

Battery energy storage system (BESS), due to its very fast dynamic response, plays an important role in improving the transient frequencystability of a grid.The performanceof BESS varies with its installation site in the ...
Adaptive battery energy storage system controller for enhancing frequency stability of a low inertia grid

Mahadi Hasan, Md. (Department of Electrical and Electronic Engineering (EEE), BUET, 2023-07-25)

Due to the rapid increasing demand of grid connected solar photovoltaic, the overall system inertia decreases and hence causes system instability. Virtual inertia emulation is one of the solution to this low inertia problem ...
Elastic phonon dephasing effect on spin transport in 2D hexagonal lattice topological insulator

Istiaque Rahaman, Md. (Department of Electrical and Electronic Engineering, 2021-09-27)

2D hexagonal lattice Topological Insulator(TI) shows topologically protectedspin polarized edge transport while the bulk of the material remains insulating.Thesuppressionofbackscatteringofelectronsmakestheedgetransportofelec-trons ...
Design of topas based hollow core antiresonant fiber for terahertz waveguide

Datta, Pritom (Department of Electrical and Electronic Engineering (EEE), BUET, 2023-04-10)

Novel low loss fiber for THz application offers great potential for optical fiber study. A novel topas based antiresonant hollow core fiber is designed and numerically characterized by finite element method (FEM) based ...
Wide bandgap semiconductor based high performance bidirectional CLLL converter for electric vehicle application

Tanvir Shahed, Md. (Department of Electrical and Electronic Engineering, 2023-04-16)

Thisthesisproposesanimprovedtopologyforanisolatedbidirectionalresonant dc-dcconverterforelectricvehicle(EV)onboardchargers.Asopposedtothecon- ventional capacitor-inductor-inductor-inductor-capacitor (CLLLC) resonant con- ...
Design of an all-optical plasmonic modulator for two micrometer waveband

Shamima Akter Mitu (Department of Electrical and Electronic Engineering (EEE), BUET, 2023-05-03)

In order to meet up the future demand of bandwidth, optical communication wavelength have to be shifted to new wavelength of 2 µm in future. In this study, an all-optical PCM based reflection modulator for upcoming 2 µm ...

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