Results 41 to 50 of about 23,261,811 (330)
Propagation of Disturbances Generated by DC Electric Traction
Energies, 2022 In Poland, rail transport is powered by the electric system with the use of traction substations that supply the electric traction with DC voltage of 3 kV.
Zbigniew Olczykowski, Jacek Kozyra
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Clinical Response and Autonomic Modulation as Seen in Heart Rate Variability in Mechanical Intermittent Cervical Traction: A Pilot Study [PDF]
, 2012 [[abstract]]OBJECTIVE: To determine the influence of mechanical intermittent cervical traction on the autonomic system. DESIGN: Prospective, cases series study. SUBJECTS: Sixteen healthy volunteers without contraindications for cervical traction. METHODS:
C Chou +5 more
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Hybrid Signaling-Droop DC-Link Voltage Control for Trains With Multiple Onboard Power Sources
IEEE AccessThe increasing trend in efficiency and performance requirements of electric trains is leading to the deployment of more onboard energy storage elements.
Saad Ahmad +6 more
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Calculation methodology of current distribution in traction networks of AC current
Вестник Научно-исследовательского института железнодорожного транспорта, 2017 Several publications have been devoted to the development of traction power supply for alternating current [1, 2]. They set the task of considering the resistance of the external power supply system and power traction transformers when calculating the ...
A. B. Kosarev, B. I. Kosarev
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Sizing criterial for traction drives [PDF]
, 1983 A simplified traction drive fatigue analysis which was derived from the Lundberg-Palmgren theory is measured and the effects of rotational speed, multiplicity of contacts, and variation in the available traction coefficient on traction drive system life,
Coy, J. J. +2 more
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Hamiltonian formulation of distributed-parameter systems with boundary energy flow [PDF]
, 2001 A Hamiltonian formulation of classes of distributed-parameter systems is presented, which incorporates the energy flow through the boundary of the spatial domain of the system, and which allows to represent the system as a boundary control Hamiltonian ...
Maschke, B.M., Schaft, A.J. van der
core +7 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
Motor-traction Contracts system
Izvestiya of Saratov University. Economics. Management. Law, 2008 In the article problems of the market relations influence on the forming of the motor-traction contracts system are analyzed. In the work it is concluded, that the majority of contracts, connected with freight, supplement each other and make interconnected system of contracts.
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Molecular Oncology, EarlyView.The cancer problem is increasing globally with projections up to the year 2050 showing unfavourable outcomes in terms of incidence and cancer‐related deaths. The main challenges are prevention, improved therapeutics resulting in increased cure rates and enhanced health‐related quality of life.
Ulrik Ringborg +43 more
wiley +1 more source
Low Vibration Control Scheme for Permanent Magnet Motor Based on Resonance Controllers
EnergiesFor an electric locomotive traction motor, it is necessary to maintain relatively low vibration and noise due to the higher design standards. By using effective motor control strategies and implementing current harmonic suppression schemes, motor ...
Chi Ma +3 more
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