Results 121 to 130 of about 23,261,811 (330)

Traction Drive Control System for Railway Electric Rolling Stock Based on the Application of Power Factor as an Optimization Criterion [PDF]

open access: yesProblems of the Regional Energetics
The objective of this work is to provide theoretical substantiation for the possibility of using power factor as a criterion in the development of optimized automatic control systems for AC electric rolling stock traction drives.
Goolak S.   +4 more
doaj   +1 more source

Endoscopic mucosal resection with a magnetic traction system: a new strategy to facilitate complete resection. [PDF]

open access: yesEndoscopy, 2022
Figueiredo M   +6 more
europepmc   +1 more source

Advanced electric propulsion system concept for electric vehicles. Addendum 1: Voltage considerations [PDF]

open access: yes
The two electric vehicle propulsion systems that best met cost and performance goals were examined to assess the effect of battery pack voltage on system performance and cost.
Forbes, F. E., Raynard, A. E.
core   +1 more source

Hydrogel Confinement Strategies for 3D Cell Culture in Microfluidic Systems

open access: yesAdvanced Materials Technologies, EarlyView.
Hydrogel confinement structures are key to organizing 3D cell cultures in microfluidic devices. This review classifies five structural strategies (micropillar, phaseguide, porous membrane, stepped‐height, and support‐free) and examines their trade‐offs alongside fabrication methods.
Soohyun Kim, Min Seok Lee, Sung Kyun Lee
wiley   +1 more source

Application of bogie control traction system within the intercity EMUs

open access: yes机车电传动, 2016
Combining the characteristics of short formation intercity EMUs and the bogie control traction system, the affects of thetraction system on the braking system and the bogies were analyzed, and the application foreground of the bogie control traction ...
LI Shidong   +3 more
doaj  

Bond Graph Based Stability Analysis of a Railway Traction System [PDF]

open access: yes, 2005
This paper emphasises the interest of the Bond Graph approach for analysis and system design of heterogeneous and multi-field devices. In particular, the local stability analysis of non linear systems can be directly derived from the linearised Causal ...
Dauphin-Tanguy, Geneviève   +3 more
core   +1 more source

Anti‐Slip Material‐Based Strategies and Approaches

open access: yesAdvanced Materials Technologies, EarlyView.
This review highlights the principle mechanisms of slipping at the microscale, linking contact mechanics with a friction behavior model for surface interfaces. Main strategies to develop anti‐slip properties to the surfaces are discussed alongside standardized testing approaches.
Sogand Abbaspoor‐Zanjani   +3 more
wiley   +1 more source

Characterization of Droplet Formation in Ultrasonic Spray Coating: Influence of Ink Formulation Using Phase Doppler Anemometry and Machine Learning

open access: yesAdvanced Materials Technologies, EarlyView.
This study explores how machine learning models, trained on small experimental datasets obtained via Phase Doppler Anemometry (PDA), can accurately predict droplet size (D32) in ultrasonic spray coating (USSC). By capturing the influence of ink complexity (solvent, polymer, nanoparticles), power, and flow rate, the model enables precise droplet control
Pieter Verding   +5 more
wiley   +1 more source

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