Results 31 to 40 of about 1,412 (241)

Enabling Digital Continuity in Virtual Manufacturing for Eco‐Efficiency Assessment of Lightweight Structures by Means of a Domain‐Specific Structural Mechanics Language: Requirements, Idea and Proof of Concept

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents a solver‐agnostic domain‐specific language (DSL) for computational structural mechanics that strengthens interoperability in virtual product development. Using a hierarchical data model, the DSL enables seamless exchange between diverse simulation tools and numerical methods.
Martin Rädel   +3 more
wiley   +1 more source

Three‐dimensional Antimony Sulfide Based Flat Optics

open access: yesAdvanced Functional Materials, EarlyView.
This work presents the development of a grayscale electron beam lithography (g‐EBL) method for fabricating antimony trisulfide (Sb2S3) nanostructures with customizable 3D profiles. The refractive index of g‐EBL patterned Sb2S3 is determined based on the synergy of genetic algorithm and transfer matrix method.
Wei Wang   +18 more
wiley   +1 more source

Fault Monitoring and Multilevel Protection Method for SiC-Based Medium-Voltage Hybrid Clamped Converter

open access: yesEnergies
SiC-based medium/high voltage converters face complex operating conditions and extremely severe electromagnetic-thermal coupling impact, which puts strict requirements on their safety and reliability.
Kai Xiao   +6 more
doaj   +1 more source

Universal Neuromorphic Element: NbOx Memristor with Co‐Existing Volatile, Non‐Volatile, and Threshold Switching

open access: yesAdvanced Functional Materials, EarlyView.
A W/NbOx/Pt memristor demonstrates the coexistence of volatile, non‐volatile, and threshold switching characteristics. Volatile switching serves as a reservoir computing layer, providing dynamic short‐term processing. Non‐volatile switching, stabilized through ISPVA, improves reliable long‐term readout. Threshold switching operates as a leaky integrate
Ungbin Byun, Hyesung Na, Sungjun Kim
wiley   +1 more source

Research on cascaded multilevel converters for dual motor drive systems based on a nine‐switch converter

open access: yesIET Electric Power Applications
In order to address the issues of complexity, high cost, large volume, and low reliability associated with traditional H‐bridge cascaded converters when operating under high voltage, high capacity, and dual electric motor loads, the authors propose the ...
Pan Wang, Hu Xu, Lei Yuan
doaj   +1 more source

Analysis and Implementation of High-Performance DC-DC Step-Up Converter for Multilevel Boost Structure

open access: yesFrontiers in Energy Research, 2019
The conventional DC-DC converters such as SEPIC, boost converter, etc. produces large voltage ripples in multilevel converter systems. For that reason, in this paper, a new DC-DC converter topology is proposed, and the performance is analyzed.
M. Premkumar, C. Kumar, R. Sowmya
doaj   +1 more source

Review of Multilevel Inverters for PV Energy System Applications

open access: yesEnergies, 2021
Over the last decade, energy demand from the power grid has increased significantly due to the increasing number of users and the emergence of high-power industries.
Ali Bughneda   +4 more
doaj   +1 more source

Synchronized Electro‐Chromo‐Emissive Devices Using a Mixed Ionic‐Electronic Conductive Layer for XR Applications

open access: yesAdvanced Functional Materials, EarlyView.
A single cell type Electro‐chromo‐emissive (ECECL) device integrating synchronized electrochromic (EC) and electrochemiluminescent (ECL) functions is developed using a mixed ionic‐electronic conductor (MIEC). A MIEC layer reduces ionic/electronic resistance, enabling ultrafast switching and enhanced optical contrast.
Hwandong Jang   +5 more
wiley   +1 more source

Backstepping controller of five-level three-phase inverter

open access: yesMATEC Web of Conferences, 2014
Multilevel converters are becoming increasingly used in many industrial applications due to the many advantages that they offer. The improvements in the output signal quality, lower Total Harmonic Distortion (THD) and many other properties make ...
Majdoul R.   +5 more
doaj   +1 more source

Investigating the Converter-Driven Stability of an Offshore HVDC System

open access: yesEnergies, 2021
Offshore wind farms are increasingly built in the North Sea and the number of HVDC systems transmitting the wind power to shore increases as well. To connect offshore wind farms to adjacent AC transmission systems, onshore and offshore modular multilevel
Matthias Quester   +5 more
doaj   +1 more source

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