Results 21 to 30 of about 299,357 (239)
An Integral Battery Charger with Power Factor Correction for Electric Scooter [PDF]
, 2009 This paper presents an integral battery charger for an electric scooter with high voltage batteries and interior-permanent-magnet motor traction drive.
Armando, Eric Giacomo +2 more
core +2 more sources
Traction characteristics of polymer blended oils.
Journal of The Japan Petroleum Institute, 1987 In order to develop polymer additives which increase the traction coefficient of its blended oils, many kinds of homopolymers and copolymers were synthesized. The traction coefficient of polymerblended oils was measured with a two-disk machine. The relation between traction coefficient of the blended oils and molecular structure of the polymer ...
Takashi KYOTANI +4 more
openaire +2 more sources
Study on Traction Characteristics of Point Contact State under Oil–Air Lubrication
LubricantsOil–air lubrication technology is commonly utilized in the lubrication design of traditional components to reduce friction between contact pairs. This study focuses on testing the point-contact friction pairs of two quantitative valves using a self-made ...
Bing Su, Han Li, Jiongli Ren, Zeyu Gong
doaj +1 more source
A Method of Projecting of Electric Drive for the Traction Vehicle with wn Asynchronous Motor
Communications, 1999 This contribution describes a computing method of the continuous rating for the traction vehicle with induction traction motors. A method of specifying probable mechanical and electrical parameters and characteristics of the asynchronous motor as well as
Bernard Bednarik +3 more
doaj +1 more source
Energies, 2023 The traction load of electrified railways is a special user of the power system, which will have a significant impact on and pose a challenge to the power system after grid connection.
Zhensheng Wu, Xinyi Zhao, Deling Fan
doaj +1 more source
What Does it Mean to Teach Interpretively? [PDF]
, 2016 The ‘interpretive turn’ has gained traction as a research approach in recent decades in the empirical social sciences. While the contributions of interpretive research and interpretive research methods are clear, we wonder: Does an interpretive ...
Dodge, Jennifer +3 more
core +2 more sources
Electric drives of traction rolling stocks with ac motors [PDF]
Transport, 2006 The paper considers the variation of circuit design of the electric drives in traction rolling stocks when traditional DC electric machines are replaced with AC electric machines. Simplified circuit diagrams of the electric drives using electric machines
L. P. Lingaitis, L. Liudvinavičius
doaj +3 more sources
Design of permanent magnet traction system for a new generation of high-speed EMU
机车电传动, 2023 In order to promote scientific and technological innovation in the field of high-speed railway equipment, a new generation of 400 km/h EMU is attempted to create, which is faster, safer, more environment-friendly, energy-saving, intelligent. Based on the
WANG Lei +3 more
doaj
Identification of anisotropic tensile strength of cortical bone using Brazilian test. [PDF]
, 2014 For a proper analysis of cortical bone behaviour, it is essential to take into account both the elastic stiffness and the failure criteria. While ultrasound methods allow complete identification of the elastic orthotropic coefficients, tests used to ...
ALLENA, Rachele, CLUZEL, Christophe
core +5 more sources
Screening for lung cancer: A systematic review of overdiagnosis and its implications
Molecular Oncology, EarlyView.Low‐dose computed tomography (CT) screening for lung cancer may increase overdiagnosis compared to no screening, though the risk is likely low versus chest X‐ray. Our review of 8 trials (84 660 participants) shows added costs. Further research with strict adherence to modern nodule management strategies may help determine the extent to which ...
Fiorella Karina Fernández‐Sáenz +12 more
wiley +1 more source