Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 1936 for “"Electronics and Electrical"”.
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Additive Manufacturing of Electrical Machines and Electronic Devices
… advancements in the additive manufacture of electronics and electrical machines have led to successful demonstrations of 3D-printed passive (e.g., resistors, capacitors, inductors) and active (e.g., transistors) electronic components, as well as magnetic cores and power transfer devices. …
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Electronics first : development of a basic electronics course of study for naval engineers
… of critical engineering, design, construction, and naval architecture concepts. However, within that curriculum, there is less of an emphasis on electrical engineering and electronics as it applies to shipboard systems. The purpose of this project is to outline a new course of study centered …
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Voluntary environmental programmes in the developing world: an examination of the ISO 14001 environmental management system certification in Thailand
… environmental programmes (VEPs). Developed and promoted in the past few decades by policy practitioners looking to regulate environmental pollution without saddling enterprises and governments with high regulatory costs, VEPs remain vastly under-studied, especially when compared with market …
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Environmental risk assessment for an informal e-waste recycling site in Lagos State, Nigeria
… recycling may pose a risk to human health and the environment, this study aims to evaluate the e-waste contamination and the environmental and human health impact of informal e-waste recycling on the exposed population using the risk assessment framework. The distribution of a number of …
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Islanding Detection of Grid Connected Distributed Generation Resources Using Symmetrical Components
… problems in distribution network is islanding detection, since it causes serious problems for equipment connected to the network, specially distributed generators (DG). Network fluctuations occurring at different situations impact the accuracy of islanding detection method. The proposed …
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Theoretical And Experimental Studies On The Instability Of Charged Liquid Drops
… charged liquid droplets, a complete understanding of their behavior at the Rayleigh limit is necessary. An analytical model has been developed for a conductive spherical drop charged to its Rayleigh limit which predicts the final state just after the breakup for both single and multi-sibling …
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The adjacent errors of adaptive algorithms.
The adjacent errors of adaptive algorithms.
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Designs and applications of periodically loaded modeless integrated circuit subtrates.
Designs and applications of periodically loaded modeless integrated circuit subtrates.
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Exact Solutions to Electromagnetic Scattering Problems with Multi-Layered Oblate Spheroidal Geometry
… methods (CEM) play a critical role in the design and analysis of complex electromagnetic (EM) systems. CEM, such as the finite element method (FEM), finite-difference time-domain (FDTD), and method of moments (MoM), allow researchers and engineers to solve practical EM problems with complex …
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Novel Cladding Designs for Engineering Electromagnetic Scattering
The rapid development of metamaterials and meta surfaces has revolutionized the field of electromagnetic wave manipulation, offering unprecedented control over wave propagation, reflection, and refraction. These engineered materials, characterized by their unique ability to exhibit properties not …
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Training and Inference in Early-Exit Deep Q-Networks for Efficient Reinforcement Learning
… challenges in terms of computational resources and real-time decision-making. To address these challenges, this thesis explores the integration of early-exit neural networks (EENNs) with reinforcement learning (RL), a novel approach that has received limited attention in the literature. …
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Interpretation of Learned Solutions for Precoding-Oriented Massive MIMO CSI Feedback Design
… learning the Pilot Signals, the User’s Encoder, and the Base Station’s Decoder. Adopting a ``task-oriented approach", their objective maximizes the downlink sum-rate while minimizing a differentiable overhead penalty (controlled by a trade-off parameter $\lambda$). Crucially, their results …
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Reliability and Lifetime Assessment and Enhancement of SIC MOSFETs in an H-ANPC Inverter
This thesis investigates the lifetime and reliability assessment of power semiconductor devices to address the growing demand for efficient and reliable power converters. Accurate evaluation requires replicating real-world stress conditions, achieved through various Accelerated Tests (ATs). A …
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DESIGNING A CONTROL SYSTEM FOR THE AUTONOMOUS SMALL SCALE HELICOPTER
… Identify the system model (Helicopter model) and the second part is designing the compensator. Modeling the helicopter can be achieved by either first principles modeling or black box modeling. Based on the Model obtained, different controlling techniques can be used to design a compensator to …
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Control of power converter for grid integration of renewable energy conversion and STATCOM systems
… is in response to a number of global challenges and concerns, including climate change, increasing energy demand, and energy security. The investment is widely spread over the leading renewable energy technology sectors: wind, solar, biofuels, biomass, and fuel cells. Among those, wind, solar …
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Compressive gait biometric with wireless distributed pyroelectric sensors
Human tracking and recognition are desirable yet challenging for many applications including surveillance, computer vision, robotics, virtual reality, etc. Many biometric modalities have been used on these applications. Compared to other biometric modalities, such as fingerprints, face, and iris, …
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Analysis of low voltage regulator efficiency based on ferrite inductor
… based on ferrite inductor, using single- and two-phase topologies, were designed and simulated in MATLAB. Simulated values of output voltage and current were used to evaluate the buck converter (i.e., low voltage regulator) for power efficiency and percentage ripple reduction at …
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Statistical Design And Imaging Of Position-Encoded 3D Microarrays
… targets: such as mRNAs, proteins, antibodies, and cells) are captured by the microspheres on one side, and are tagged by nanospheres embedded with quantum-dots: QDs) on the other. We use the lights emitted by these QDs to quantify the target concentrations. The imaging is performed using a …
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NONUNIFORMLY AND RANDOMLY SAMPLED SYSTEMS
… with missing data, sampling irregularities and randomly sampled systems are the topics covered by this dissertation.</p><p>The spectral analysis of a series of periodically repeated sampling patterns is developed. Parameter estimation of autoregressive moving average models using partial …
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