Results 51 to 60 of about 299,357 (239)

Effect of Loading Condition on Traction Coefficient Between Shoes and Artificial Turf Surfaces [PDF]

open access: yes, 2010
Background. The interaction between a shoe and a turf surface is highly complex and difficult to characterize. Over the three decades since artificial turf was introduced, researchers have attempted to understand the traction caused by the interaction ...
Cooper, Benjamin   +4 more
core   +1 more source

Urban and extra-urban hybrid vehicles: a technological review [PDF]

open access: yes, 2018
Pollution derived from transportation systems is a worldwide, timelier issue than ever. The abatement actions of harmful substances in the air are on the agenda and they are necessary today to safeguard our welfare and that of the planet.
Capata, Roberto
core   +1 more source

Substrate Stress Relaxation Regulates Cell‐Mediated Assembly of Extracellular Matrix

open access: yesAdvanced Functional Materials, EarlyView.
Silicone‐based viscoelastic substrates with tunable stress relaxation reveal how matrix mechanics regulates cellular mechanosensing and cell‐mediated matrix remodelling in the stiff regime. High stress relaxation promotes assembly of fibronectin fibril‐like structures, increased nuclear localization of YAP and formation of β1 integrin‐enriched ...
Jonah L. Voigt   +2 more
wiley   +1 more source

THE TRACTION ELECTRIC OPERATION AND ITS EXPLOITATION ABILITIES

open access: yesNauka ta progres transportu, 2011
The possibilities of asynchronous traction electric motor drive are considered at the certain coupling mass taking into account the coupling restrictions.
V. M. Bezruchenko, O. A. Khoroshko
doaj  

Smart Traction Control Systems for Electric Vehicles Using Acoustic Road-type Estimation

open access: yes, 2019
The application of traction control systems (TCS) for electric vehicles (EV) has great potential due to easy implementation of torque control with direct-drive motors. However, the control system usually requires road-tire friction and slip-ratio values,
Boyraz, Pinar, Dogan, Daghan
core   +1 more source

Microporous Microgel Assemblies Facilitating the Recruitment and Osteogenic Differentiation of Progenitor Cells for Bone Regeneration

open access: yesAdvanced Functional Materials, EarlyView.
There is a significant need for biomaterials with well‐defined stability and bioactivity to support tissue regeneration. In this study, we developed a tunable microgel platform that enables the decoupling of stiffness from porosity, thereby promoting bone regeneration.
Silvia Pravato   +9 more
wiley   +1 more source

Research on lightning impulse simulation method and protection technology of a traction power supply system

open access: yes机车电传动, 2022
The traction power supply system will have high amplitude transient overvoltage after lightning stroke, which will affect the stable operation of railway transportation system.
XIE Xuefang
doaj  

CALCULATION OF A MECHANICAL CHARACTERISTIC OF ELECTRIC TRACTION MOTOR OF ELECTRIC VEHICLE

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2017
The traction characteristic of an electric vehicle is the main characteristic of mechanical system that reflects its key performance indicators. Implementation of the traction characteristic is based on controlling angular speed and torque of electric ...
Phuong Le Ngo, G. I. Gulkov
doaj   +1 more source

Biobased Bionic Spider Silk via Electrostatic Complexation for Simultaneously Harvesting Atmospheric Water and Triboelectric Energy

open access: yesAdvanced Functional Materials, EarlyView.
Bio‐based bionic spider silk and spider web are first prepared using polyelectrolyte complexation technique for the simultaneous harvesting of water and triboelectric energy. The advantage of this process lies on entirely bio‐based materials, fully green water‐processable procedures, extremely high production rate (99.36%), excellent fog harvesting ...
Qin Chen   +9 more
wiley   +1 more source

Research on Traction System for Variable Marshalling EMU at Speed 250-350 km/h

open access: yes机车电传动, 2019
The performance index of the 250-350 km/h programmable EMU traction system was introduced. The formula for calculating total basic resistance of the EMUs (Electric Multiple Units) was determined by using the integrated Datong-Xi'an high-speed railway ...
Ruobing TAO   +4 more
doaj  

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