Results 81 to 90 of about 6,813 (267)

Speed Control Techniques for Permanent Magnet Synchronous Motors in Electric Vehicle Applications Toward Sustainable Energy Mobility: A Review

IEEE Access
Electrical vehicles (EVs) play a crucial role in reducing greenhouse gas emissions and promoting environmental sustainability. To achieve stable, reliable, and satisfactory performance, these vehicles must be equipped with appropriate motor drives and ...
Mehdi Monadi, Mohammad Nabipour, Fatemeh Akbari-Behbahani, Edris Pouresmaeil   +3 more
doaj   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

Common‐Mode Voltage Analysis and Reduction Method for SiC‐Based Four‐Level Hybrid Clampled Converter

IET Power Electronics
The hybrid clamped converter (HCC) is a novel high‐performance four‐level multilevel converter for medium‐voltage motor drives. However, the high common mode voltage (CMV) in motor drives will cause harmful shaft voltages and bearing currents, which ...
Sheng Yan, Jianyu Pan, Xiaojie Fu, Junwei Xiao, Haibo Tang   +4 more
doaj   +1 more source

Enhancing Fatigue Crack Growth Resistance in Heterostructured Aluminum Bimetals by Tailored Interface Design

Advanced Engineering Materials, EarlyView.
Different Al/Al bimetals with a single engineered interface reveal how mechanical mismatch governs fatigue crack growth under cyclic loading. Additionally, loading–unloading–reloading tests link the microyielding behavior to the fatigue crack growth resistance, while crack‐path analysis reveals toughening mechanisms at the interface, highlighting ...
Sebastian Vollath, Philip Manuel Pohl, Heinz Werner Höppel   +2 more
wiley   +1 more source

Multilayer Self‐Limiting Electrospray Deposition via Stepped Voltage Bias

Advanced Engineering Materials, EarlyView.
Self‐limiting electrospray deposition (SLED) uses a high voltage to generate and deposit a charged payload on a target surface. The coating retains its charge, repelling newly arriving material. SLED thickness can be decreased by applying a secondary bias to the target.
Madhuri Deb, S. Rahman Pejman, Alexander Jakimowicz, Jonathan P. Singer   +3 more
wiley   +1 more source

A Survey on Mission-Profile-Based Stress Testing of Electric Motor Drives

Applied Sciences
This paper provides a comprehensive overview of mission-profile-based stress testing methods for AC electric motor drives, focusing on the impact of stress factors on long-term performance.
Luka Živković, Tin Benšić, Marinko Barukčić, Goran Kurtović   +3 more
doaj   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

Advanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian, Jingkai Lin, Zhihao Tian, Selusiwe Ncube, Huayang Zhang, Emiliano Cortés, Hongqi Sun, Shaobin Wang   +7 more
wiley   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

Advanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein, Tiago Carneiro Gomes, Eliza Ng, Simon Rondeau‐Gagné, Tricia Breen Carmichael   +4 more
wiley   +1 more source

Deep Reinforcement Learning Agent Based Speed Controller for DTC‐SVM of PMSM Drive

IET Power Electronics
High‐performance applications extensively use permanent magnet synchronous motor (PMSM) drives because of their high torque density and efficiency. However, conventional PI controllers employed in the outer speed control loop of direct torque control ...
Aenugu Mastanaiah, Tejavathu Ramesh, Surla Vishnu Kanchana Naresh, Praveen Kumar Bonthagorla   +3 more
doaj   +1 more source