Results 21 to 30 of about 125,163 (314)

Traction Calculation for Modular Energotechnological Unit Given Kinematic Mismatch of Driving Axles

open access: yesСельскохозяйственные машины и технологии, 2022
The power of the engine of energy-saturated tractors often proves not to be fully used. One of the solutions to this problem might be the use of the unit technological part as an active coupling weight.
A. V. Lavrov   +3 more
doaj   +1 more source

Influence of PWM on the proximity loss in permanent magnet brushless AC machines [PDF]

open access: yes, 2008
The winding copper loss can be significantly increased due to skin and proximity eddy current effects. The skin and proximity losses due to fundamental frequency current has been investigated in literature, but the influence of PWM on the skin and ...
Bremner, J.   +5 more
core   +1 more source

Infinitesimal Method Based Calculation of Metro Stray Current in Multiple Power Supply Sections

open access: yesIEEE Access, 2020
The calculation of rail potential and stray current in the DC traction power system can guide the protection against the rail overvoltage problem and mitigate the electrolytic corrosion due to stray current.
Sheng Lin   +4 more
doaj   +1 more source

Traction force microscopy on soft elastic substrates: a guide to recent computational advances [PDF]

open access: yes, 2015
The measurement of cellular traction forces on soft elastic substrates has become a standard tool for many labs working on mechanobiology. Here we review the basic principles and different variants of this approach.
Schwarz, Ulrich S., Soine, Jerome R. D.
core   +2 more sources

Creep curve measurement to support wear and adhesion modelling, using a continuously variable creep twin disc machine [PDF]

open access: yes, 2013
Predictive modelling of wear and adhesion at rolling-sliding contacts such as a railway rail and wheel depends on understanding the relationship between slip and shear force at the contact surface, i.e. the creep verses force curve.
Amsler   +13 more
core   +1 more source

Reduction of electric power losses by the reactive power compensation unit at the point of AC electric traction network sectioning

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2019
Changes of electric traction network with regulated and not-regulated reactive power compensation units (CU) are required due to switching on the reactive power static generators at the AC electric traction network sectioning points the specifying ...
Leonid A. German   +1 more
doaj   +1 more source

Energy efficiency and integration of urban electrical transport systems: EVS and metro-trains of two real European lines [PDF]

open access: yes, 2019
Transport is a main source of pollutants in cities, where air quality is a major concern. New transport technologies, such as electric vehicles, and public transport modalities, such as urban railways, have arisen as solutions to this important problem ...
Cucala, Asunción P.   +3 more
core   +1 more source

The role of traction in membrane curvature generation. [PDF]

open access: yes, 2018
Curvature of biological membranes can be generated by a variety of molecular mechanisms including protein scaffolding, compositional heterogeneity, and cytoskeletal forces.
Alimohamadi, H   +4 more
core   +1 more source

Technical and economical problems of integration of IX B and XI D international railway transport corridors into European railway transport network [PDF]

open access: yesTransport, 2003
Technical and economical problems of train speed increment up to 160 km/h in existing IX B and IX D international railway transport corridors are analysed.
L. Černiauskaitė, K. Sakalauskas
doaj   +3 more sources

Improving the theory for calculating the rational modes of traction electrical equipment [PDF]

open access: yesE3S Web of Conferences, 2019
Research shows that the existing theory and methods for calculating rational operating modes of traction electrical equipment do not provide a sufficient level of adequacy under real operating conditions of urban electric transport, which is due to the high complexity of the processes and the lack of a sufficiently developed methodology for their ...
R. G. Idiyatullin   +5 more
openaire   +3 more sources

Home - About - Disclaimer - Privacy