Results 41 to 50 of about 59,552 (266)
IET Electric Power Applications, 2023 Induction motors, particularly single‐phase induction motors (SPIMs), represent the major consumption of power in the household sector. SPIMs that fail during their life cycle represent the best opportunity to improve their efficiency by replacing or ...
Hamidreza Akbari Resketi +2 more
doaj +1 more source
Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing
Advanced Engineering Materials, EarlyView.The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai +6 more
wiley +1 more source
Special Modes of AC Drives Operation in the Mining Industry
E3S Web of Conferences, 2017 This paper presents research of special modes of AC drives operation. The possibility of obtaining of vibrational and vibrational-rotational modes of the AC drives on the basis of multipurpose polyharmonic mode of actuating motor operation is shown ...
Payuk Lubov +4 more
doaj +1 more source
Sensors, 2023 Due to the inconvenience of drawing blood and the possibility of infection associated with invasive methods, research on non-invasive glycated hemoglobin (HbA1c) measurement methods is increasing.
Shama Satter, Tae-Ho Kwon, Ki-Doo Kim
doaj +1 more source
ACS AND THE GREAT DREAM MACHINE [PDF]
Chemical & Engineering News Archive, 2005 WITH HIS NEW BOOK, "THE World Is Flat: A Brief History of the Twenty-First Century," New York Times writer Thomas L. Friedman has brought newfound energy to the crucial debate on American science, technology, and competitiveness. Friedman clearly explains how new technologies such as the Web are enabling India, China, and other nations to compete with ...
openaire +1 more source
Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy
Advanced Engineering Materials, EarlyView.A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang +10 more
wiley +1 more source
Energies, 2020 Due to its scalability, reliability, high power quality and flexibility, the modular multilevel converter is the standard solution for high-power high-voltage applications in which an AC–DC–AC connection is required such as high-voltage direct-current ...
Gustavo Gontijo +3 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Aluminum and nitride coatings are used in industry because they are hard, resist wear, and protect against oxidation. Adding boron can improve friction behavior and other properties. This study tests coatings on surfaces with different finishes. Results show smoother surfaces perform better, while rough ones wear faster, although coatings can reduce ...
Adrián Claver +9 more
wiley +1 more source
Direct AC-AC Propulsion System Using Matrix Converter and 5Φ Traction Motor for HEV Vehicle
Communications, 2018 The paper deals with direct AC-AC propulsion system using [nx5] matrix converter and five-phase traction induction motor (IM) for hybrid electric vehicle (HEV) including electronic differential.
Branislav Dobrucký +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 +9 more
wiley +1 more source