Results 61 to 70 of about 831 (269)

Toward Knowledge‐Based Workflows: A Semantic Approach to Atomistic Simulations for Mechanical and Thermodynamic Properties

Advanced Engineering Materials, EarlyView.
Knowledge‐based atomistic workflows are presented for mechanical and thermodynamic properties. By coupling modular simulations with ontology‐aligned metadata and provenance, Fe case studies on elastic behavior, defects, thermal properties, and Hall–Petch strengthening reveal how FAIR, queryable, and reusable simulation data can be generated. Mechanical
Abril Azócar Guzmán, Hoang‐Thien Luu, Sarath Menon, Tilmann Hickel, Nina Merkert, Stefan Sandfeld   +5 more
wiley   +1 more source

Molecular Dynamics Studies of Shape Memory Polymers: From Bead–Spring Models to Atomistic Simulations

Advanced Engineering Materials, EarlyView.
Coarse‐grained (left) and atomistic (right) models of the shape memory polymer ESTANE ETE 75DT3 are shown schematically. The two representations bridge molecular detail and mesoscopic description. Both models capture shape memory behavior, linking segmental mobility and conformational relaxation of anisotropic chains to macroscopic recovery, and ...
Fathollah Varnik
wiley   +1 more source

Application of Grasshopper Optimization Algorithm for Selective Harmonics Elimination in Low-Frequency Voltage Source Inverter

Energies, 2020
In this paper, an application of the recently developed Grasshopper Optimization Algorithm (GOA) for calculation of switching angles for Selective Harmonic Elimination (SHE) PWM in low-frequency voltage source inverter is proposed. The algorithm is based
Marcin Steczek, Włodzimierz Jefimowski, Adam Szeląg   +2 more
doaj   +1 more source

The selective harmonic elimination based optimal fundamental frequency modulation for multilevel converter

矿业科学学报, 2017
The selective harmonic elimination(SHE) based staircase modulation is a commonly used fundamental frequency modulation strategy for multilevel converters.However, the solutions to the staircase SHE equations cannot cover the full range of modulation ...
Yang Kehu, Zhang Jianjun, Wang Yubo, Li Xiangyu   +3 more
doaj  

Non-Symmetrical Selective Harmonic Elimination PWM Techniques: The Unipolar Waveform

, 2007
Selective harmonic elimination pulse-width modulation (SHE-PWM) techniques offer a tight control of the harmonic spectrum of a given voltage waveform generated by a power electronic converter along with a low number of switching transitions.
Vassilios G. Agelidis, Agelidis, Vassilios G., Mohamed S. A. Dahidah, Dahidah, Mohamed S. A.   +3 more
core   +1 more source

3D Printing Innovations in Polymeric Porous and Patterned Architecture

Advanced Functional Materials, EarlyView.
Polymeric foams occupy a unique structural space between dense solids and open networks, where engineered void fraction governs mechanical compliance, thermal resistance, and mass transport. Additive manufacturing now enables precise spatial control over cellular architecture, unlocking designer foam structures across applications spanning crash ...
Dhanush Patil, Sri Vaishnavi Thummalapalli, Clarissa Westover, Arunachalam Ramanathan, M. Taylor Sobzcak, Roumika Patil, Qixuan Xiang, Tiantian Li, Sui Yang, Timothy E. Long, Hongyue Sun, Xianqiao Wang, Yang Liu, Kenan Song   +13 more
wiley   +1 more source

On abolishing symmetry requirements in the formulation of a five-level selective harmonic elimination pulse-width modulation technique

, 2006
Selective harmonic elimination pulse width modulation (SHE-PWM) techniques offer a tight control of the harmonic spectrum of a given voltage waveform generated by a power electronic converter along with a low number of switching transitions.
Rao, M.V., Dahidah, M.S.A., Agelidis, V.G.   +2 more
core  

Blood Biomarkers and Surface‐Enhanced Raman Spectroscopy for Gout: A Comprehensive Review

Advanced Functional Materials, EarlyView.
Schematic illustrating gout disease progression from asymptomatic hyperuricemia to chronic tophaceous disease, highlighting the limitations of conventional imaging and biochemical diagnostics and the potential of engineered SERS platforms for ultrasensitive blood‐based detection of urate‐related biomarkers across disease stages, with the color gradient
Isuri Perera, Chiranjeevi Kanike, Appurva Tiwari, Hongyan Wu, Larry D. Unsworth, Ben Bin Xu, Xuehua Zhang   +6 more
wiley   +1 more source

Design and implementation of a three-level single-phase H-bridge inverter using SHE-PWM

Discover Electronics
The need to generate a pure sinusoidal signal with very low Total Harmonic Distortion (THD) motivates the search for the most effective modulation technique among existing methods.
Jalil Akaaboune, Bouazza Elmourabit, Mohamed Oulaaross, Mohamed Benchagra   +3 more
doaj   +1 more source

Simultaneous Selective Harmonic Elimination and THD Minimization for a Single-Phase Multilevel Inverter with Staircase Modulation

, 2017
Power electronic converters for medium and high power / voltage applications employ low frequency fundamental switching frequencies and therefore minimize switching losses.
Ruderman, Alexander, Alex Ruderman, Grandi, Gabriele, Tohid Alizadeh, Alizadeh, Tohid, Milan Srndovic, Familiant, Yakov, Yakov L. Familiant, Gabriele Grandi, Aidar Zhetessov, Srndovic, Milan, Zhetessov, Aidar   +11 more
core   +1 more source