Thomas Ebel
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View article: Interface engineering of 4H-SiC-based UV photodetectors: A comprehensive review
Interface engineering of 4H-SiC-based UV photodetectors: A comprehensive review Open
Ultraviolet (UV) photodetectors based on wide-bandgap semiconductors are essential for next-generation sensing technologies operating in harsh and energy-limited environments. Because of its wide bandgap (3.26 eV), high thermal conductivit…
View article: Correlative Raman Spectroscopy–SEM Investigations of Sintered Magnesium–Calcium Alloys for Biomedical Applications
Correlative Raman Spectroscopy–SEM Investigations of Sintered Magnesium–Calcium Alloys for Biomedical Applications Open
In this study, a correlative approach using Raman spectroscopy and scanning electron microscopy (SEM) is introduced to meet the challenges of identifying impurities, especially carbon-related compounds in metal injection-molded (MIM) Mg-0.…
View article: Three-Dimensional Distribution of Titanium Hydrides After Degradation of Magnesium/Titanium Hybrid Implant Material—A Study by X-Ray Diffraction Contrast Tomography
Three-Dimensional Distribution of Titanium Hydrides After Degradation of Magnesium/Titanium Hybrid Implant Material—A Study by X-Ray Diffraction Contrast Tomography Open
Hybrid implants composed of magnesium and titanium are a promising direction in orthopaedics, as these implants combine the stability of titanium with the biological activity of magnesium. These partly soluble implants require careful inve…
View article: Innovative Flyback Transformer Design: Enhancing Efficiency and Reducing Harmonic Current
Innovative Flyback Transformer Design: Enhancing Efficiency and Reducing Harmonic Current Open
A novel flyback transformer design reduces harmonics and improves efficiency. It use two auxiliary windings and a curved air gap. Simulations and experiments show significant improvements compared to traditional designs. Future research wi…
View article: Data-Driven RUL Estimation for DC-Link Capacitor in Ultra-Fast EV Charging Systems
Data-Driven RUL Estimation for DC-Link Capacitor in Ultra-Fast EV Charging Systems Open
The reliability of ultra-fast electric vehicle charging systems heavily depends on the performance of critical components, notably the DC-link capacitor. This paper introduces a data driven approach for estimating the remaining useful life…
View article: Design of an Integrated Magnetic Structure for Hybrid IPT Charger to Achieve Misalignment Tolerance and Constant Output Current
Design of an Integrated Magnetic Structure for Hybrid IPT Charger to Achieve Misalignment Tolerance and Constant Output Current Open
To address output current fluctuations caused by magnetic coupler mismatches in Inductive Power Transfer (IPT) chargers, a double-D quadrature (Double DDQ) coupler with LCC-S hybrid topology is proposed. This topology combines an LCC compe…
View article: Unveiling cutting-edge innovations toward green vehicle technology
Unveiling cutting-edge innovations toward green vehicle technology Open
Environmental concerns and the imperative to achieve net-zero carbon emissions have driven the exploration of efficient and sustainable advancements in automobile technologies. The automotive sector is undergoing a significant transformati…
View article: Additive manufacturing of magnesium alloys for biomedical applications: Critical review on sinterability and alloy development
Additive manufacturing of magnesium alloys for biomedical applications: Critical review on sinterability and alloy development Open
Magnesium (Mg) alloys have been receiving increased attention as an emerging class of biomedical metallic materials due to their outstanding combination of biocompatibility and bioresorbability. The customisation of biomedical Mg-based all…
View article: Low ESL Aluminum Electrolytic Capacitors for the Application of Transcranial Magnetic Stimulation
Low ESL Aluminum Electrolytic Capacitors for the Application of Transcranial Magnetic Stimulation Open
The development of portable Transcranial Magnetic Stimulation (TMS) devices requires lightweight and low-loss capacitors. This paper presents a novel redesign of standard aluminum electrolytic capacitors, using an optimized tab foil layout…
View article: Characterizing effects of hydrogen ingress in Ti–Mg based hybrid implant materials
Characterizing effects of hydrogen ingress in Ti–Mg based hybrid implant materials Open
Hybrid implants consisting of a permanent Ti-based part combined with a degradable Mg part, are promising solutions to design superior implants by combining the advantages of both materials.
View article: Dual-Port Grid-Forming Control of Double-Stage Interlinking Converters in Islanded Hybrid AC/DC Microgrids
Dual-Port Grid-Forming Control of Double-Stage Interlinking Converters in Islanded Hybrid AC/DC Microgrids Open
Hybrid AC/DC microgrids (MGs) are comprised of AC and DC MGs interconnected through an interlinking converter (ILC). This paper presents a novel control strategy for double-stage ILCs (consisting of bidirectional DC-DC and DC-AC converters…
View article: Design approach for lateral optimization of GaN CAVETs: A static characteristics study
Design approach for lateral optimization of GaN CAVETs: A static characteristics study Open
This paper demonstrates a fabless design approach for the lateral optimization of a GaN current aperture vertical electron transistor (CAVET). To this end, the length of the current blocking layer (CBL) has been scaled to exhibit the influ…
View article: Modeling the Operational Dynamics of Alkaline Electrolyzer
Modeling the Operational Dynamics of Alkaline Electrolyzer Open
The performance and optimization of alkaline electrolyzers are often constrained by the lack of comprehensive models that capture their dynamic behavior under varying operational conditions. Existing models frequently overlook the complex …
View article: Test Platform for Silicon Carbide-based Medium Voltage Electrolysis Converter
Test Platform for Silicon Carbide-based Medium Voltage Electrolysis Converter Open
Power-to-X (PtX) is deemed a promising energy carrier in the future energy sector. In such systems, the renewable energy is fed to the electrolyzer via a PtX rectification converter. State-of-the-art PtX converters are based on thyristor o…
View article: Integrated Optimal Energy Management of Multi-Microgrid Network Considering Energy Performance Index: Global Chance-Constrained Programming Framework
Integrated Optimal Energy Management of Multi-Microgrid Network Considering Energy Performance Index: Global Chance-Constrained Programming Framework Open
Distributed generation (DG) sources play a special role in the operation of active energy networks. The microgrid (MG) is known as a suitable substrate for the development and installation of DGs. However, the future of energy distribution…
View article: Life Cycle Assessment and Costing of Large-Scale Battery Energy Storage Integration in Lombok’s Power Grid
Life Cycle Assessment and Costing of Large-Scale Battery Energy Storage Integration in Lombok’s Power Grid Open
One of the main challenges of Lombok Island, Indonesia, is the significant disparity between peak load and base load, reaching 100 MW during peak hours, which is substantial considering the island’s specific energy dynamics. Battery energy…
View article: Life cycle sustainability assessment of waste-to-electricity plants for 2030 power generation development scenarios in western Lombok, Indonesia under multi-criteria decision-making approach
Life cycle sustainability assessment of waste-to-electricity plants for 2030 power generation development scenarios in western Lombok, Indonesia under multi-criteria decision-making approach Open
Globally, the dual challenges of power shortages and waste management underscore the critical need for innovative and sustainable energy solutions. Addressing these issues is essential for achieving environmental sustainability, economic d…
View article: An approach simulating interacting solid, liquid, and gas domains for dynamic seal applications
An approach simulating interacting solid, liquid, and gas domains for dynamic seal applications Open
In seal applications a solid elastic body (the seal) ensures the separation of a liquid (e.g., hydraulic oil in one chamber) from a gas (e.g., air in another chamber). In the case of a dynamic seal, the rod is moving and transports a thin …
View article: Mg-Ti hybrid joints: Surface modification, corrosion studies and 3D-pore investigation using synchrotron-based microtomography
Mg-Ti hybrid joints: Surface modification, corrosion studies and 3D-pore investigation using synchrotron-based microtomography Open
A new direction toward the future of orthopedic implants is to combine biodegradable Mg alloys with permanent Ti to produce selectively biodegradable hybrid joints for advanced tissue engineering. However, the strong galvanic corrosion bet…
View article: Investigating the Role of Flow Plate Surface Roughness in Polymer Electrolyte Membrane Fuel Cells with the Use of Multiphysics Simulations
Investigating the Role of Flow Plate Surface Roughness in Polymer Electrolyte Membrane Fuel Cells with the Use of Multiphysics Simulations Open
This study investigates the influence of surface roughness on the performance of polymer electrolyte membrane fuel cells (PEMFCs) through computational simulations using COMSOL Multiphysics. Two distinct gas flow channel (GFC) models of se…
View article: Optimizing Resilience with Digital Twin in Three-Phase Grid-Connected Systems
Optimizing Resilience with Digital Twin in Three-Phase Grid-Connected Systems Open
The integration of renewable energy sources into power grids necessitates advanced fault ride-through (FRT) strategies. This paper proposes a comprehensive approach to address this need by combining Digital Twin (DT) modeling, eXplainable …
View article: Improvement of corrosion resistance of PEO coated dissimilar Ti/Mg0.6Ca couple
Improvement of corrosion resistance of PEO coated dissimilar Ti/Mg0.6Ca couple Open
With the growing demand for weight reduction, the application of joint lightweight structural materials is increasing. Magnesium alloys feature low density, high specific strength and good formability, offering significant advantages for f…
View article: Integrated life cycle sustainability assessment with future energy mix: A review of methodologies for evaluating the sustainability of multiple power generation technologies development
Integrated life cycle sustainability assessment with future energy mix: A review of methodologies for evaluating the sustainability of multiple power generation technologies development Open
One key driver of sustainable goal development is the transition to sustainable electricity resources. The sustainability impact assessment of power production evaluates all potential impacts on society, the environment, and the economy, a…