Results 31 to 40 of about 267,306 (338)

Assessing Energy Efficiency and Power Quality Impacts Due to High-Efficiency Motors Operating Under Nonideal Energy Supply

IEEE Access, 2021
The search for more competitive equipment in the global market has led to the implementation of new materials and technologies in the search for greater energy efficiency.
Jonathan Munoz Tabora, Maria Emilia De Lima Tostes, Ubiratan Holanda Bezerra, Edson Ortiz De Matos, Carlindo Lins Pereira Filho, Thiago Mota Soares, Carlos Eduardo Moreira Rodrigues   +6 more
doaj   +1 more source

Energy-based modeling of electric motors [PDF]

, 2014
We propose a new approach to model electrical machines based on energy considerations and construction symmetries of the motor. We detail the approach on the Permanent-Magnet Synchronous Motor and show that it can be extended to Synchronous Reluctance ...
Combes, Pascal, Jebai, Al Kassem, Malrait, François, Martin, Philippe, Rouchon, Pierre   +4 more
core   +3 more sources

An electric molecular motor

Nature, 2023
AbstractMacroscopic electric motors continue to have a large impact on almost every aspect of modern society. Consequently, the effort towards developing molecular motors1–3 that can be driven by electricity could not be more timely. Here we describe an electric molecular motor based on a [3]catenane4,5, in which two cyclobis(paraquat-p-phenylene)6 ...
Long Zhang, Yunyan Qiu, Wei-Guang Liu, Hongliang Chen, Dengke Shen, Bo Song, Kang Cai, Huang Wu, Yang Jiao, Yuanning Feng, James S. W. Seale, Cristian Pezzato, Jia Tian, Yu Tan, Xiao-Yang Chen, Qing-Hui Guo, Charlotte L. Stern, Douglas Philp, R. Dean Astumian, William A. Goddard, J. Fraser Stoddart   +20 more
openaire   +5 more sources

Determination of the Performance Characteristics of a Traction Battery in an Electric Vehicle

World Electric Vehicle Journal
Electric vehicles are the most innovative and promising area of the automotive industry. The efficiency of a traction battery is an important factor in the performance of an electric vehicle. This paper presents a mathematical model of an electric truck,
Boris V. Malozyomov, Nikita V. Martyushev, Vladislav V. Kukartsev, Vladimir Yu. Konyukhov, Tatiana A. Oparina, Nadezhda S. Sevryugina, Valeriy E. Gozbenko, Viktor V. Kondratiev   +7 more
doaj   +1 more source

Thermal Management of High-Power Density Electric Motors for Electrification of Aviation and Beyond

Energies, 2019
Enhanced cooling, coupled with novel designs and packaging of semiconductors, has revolutionized communications, computing, lighting, and electric power conversion.
David C. Deisenroth, Michael Ohadi
doaj   +1 more source

Recent Development of Aircraft Electric Propulsion System: A Technical Review

CES Transactions on Electrical Machines and Systems
The technology of electric propulsion aircraft (EPA) represents an important direction and an advanced stage in the development of aviation electrification.
Wei Chen, Yexin Yan, Yang Qi, Ming Huang, Weilin Li   +4 more
doaj   +1 more source

Analysis of the degree of influence of supply voltage asymmetry on the operational reliability of low-voltage asynchronous electric motors

Известия высших учебных заведений: Проблемы энергетики, 2022
THE PURPOSE. The relevance of research is that the comprehensive substantiation of issues aimed at ensuring the effective functioning of the electrical complex with the presence of an electric motor load in conditions of low-quality supply voltage.
V. V. Romanova, S. V. Khromov, A. G. Batukhtin, K. V. Suslov   +3 more
doaj   +1 more source

Interaction between catalytic micro motors

, 2015
Starting from a microscopic model for a spherically symmetric active Janus particle, we study the interactions between two such active motors. The ambient fluid mediates a long range hydrodynamic interaction between two motors.
Bayati, Parvin, Najafi, Ali
core   +1 more source

A Comparative Study of Cerebral Oxygenation During Exercise in Hemodialysis and Peritoneal Dialysis Patients

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Cognitive impairment and exercise intolerance are common in dialysis patients. Cerebral perfusion and oxygenation play a major role in both cognitive function and exercise execution; HD session per se aggravates cerebral ischemia in this population. This study aimed to compare cerebral oxygenation and perfusion at rest and in mild
Marieta P. Theodorakopoulou, Konstantina Dipla, Danai Faitatzidou, Fotini Iatridi, Areti Georgiou, Artemios Karagiannidis, Erasmia Sampani, Chrysostomos Dimitriadis, Aggelos Koutlas, Andreas Zafeiridis, Pantelis Sarafidis   +10 more
wiley   +1 more source

Multi-objective optimisation for battery electric vehicle powertrain topologies [PDF]

, 2016
Electric vehicles are becoming more popular in the market. To be competitive, manufacturers need to produce vehicles with a low energy consumption, a good range and an acceptable driving performance.
Assadian, Francis, Auger, Daniel J., Othaganont, Pongpun   +2 more
core   +1 more source