Results 71 to 80 of about 23,261,811 (330)
Performance enhancement of electric vehicle traction system using FO‐PI controller
IET Electrical Systems in Transportation, 2019 This work improves the performance of an electric vehicle (EV) traction system by using non-linear fractional-order proportional–integral (FO-PI) controller. The functionality of FO-PI controller is benchmarked against integer-order proportional–integral
Hafiz M. Usman +2 more
semanticscholar +1 more source
Small Perturbations of an Interface for Elastostatic Problems [PDF]
, 2016 We consider solutions to the Lam\'e system in two dimensions. By using systematic way, based on layer potential techniques and the field expansion (FE) method (formal derivation), we establish a rigorous asymptotic expansion for the perturbations of the ...
Lagha, Jihene +2 more
core +5 more sources
Advanced Functional Materials, EarlyView.A 3D bone scaffold with osteogenic properties and capable of hardening in vivo is developed. The scaffold is implanted in a ductile state, and a phase transformation of the ceramic induces the stiffening and strengthening of the scaffold in vivo. Abstract Calcium phosphate 3D printing has revolutionized customized bone grafting.
Miguel Mateu‐Sanz +7 more
wiley +1 more source
Study of resonances in 1 x 25 kV AC traction systems [PDF]
, 2015 AC traction systems are 1 x 25 or 2 x 25 kV 50-Hz single-phase, non-linear, time-varying loads that can cause power quality problems. One of the main concerns about these systems is voltage distortion, because adjustable-speed drives for trains may ...
Monjo Mur, Lluís, Sainz Sapera, Luis
core +4 more sources
Advanced 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
Design of traction system for serialized China standard metro train
机车电传动, 2022 Many problems appear as the rapid development of China urban rail transit, such as various vehicle systems, huge number of spare parts and low localization level, which make it be urgent to establish China standard as well as key system in rail transit ...
LIU Xiong
doaj
High-Speed 2 × 25 kV Traction System Model and Solver for Extensive Network Simulations
IEEE Transactions on Power Systems, 2019 In this paper, a simplified model of a 2 × 25 kV bi-level traction power system for feeding high-speed trains is presented. A modified nodal analysis (MNA) based algorithm for solving the system with and adaptive damping factor is also explained.
B. Mohamed +3 more
semanticscholar +1 more source
Distributed active traction control system applied to the RoboCup middle size league [PDF]
, 2013 This work addresses the problem of traction control in mobile wheeled robots in the particular case of the RoboCup Middle Size League (MSL). The slip control problem is formulated using simple friction models for ISePorto Team robots with a ...
Almeida, José +4 more
core +2 more sources
Advanced 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
Bidirectional Charge- and Traction-System [PDF]
World Electric Vehicle Journal, 2016 The field of fast charging is diverse. Many solutions use dedicated additional costly components for each charging type. To push the E-Mobility market, a new system for charging is proposed comprising of E-Machine, Inverter and Boost DC/DC converter with a minimum of additional components.
Bruell, Martin +4 more
openaire +1 more source