Results 41 to 50 of about 24,802,635 (307)

Sustainable bioplastics manufacturing from renewable sources

FEBS Open Bio, EarlyView.
Bioplastics are manufactured by using polymers from different bio‐based sources. These novel materials not only offer biodegradability but also possess various functional properties that make them suitable for diverse applications. Recent developments in the preparation of bioplastics are reported, highlighting the distinct properties of each type of ...
C. Valeria L. Giosafatto, Marika Avitabile, Michela Famiglietti, Talayeh Kordjazi, Marzieh Moosavi‐Nasab, Odile F. Restaino, Loredana Mariniello   +6 more
wiley   +1 more source

Low Vibration Control Scheme for Permanent Magnet Motor Based on Resonance Controllers

Energies
For 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, Wenzhong Xu, Mingtian Liu, Jianfeng Hong   +3 more
doaj   +1 more source

Innovative Railway Traction System

, 2018
This article describes the future Alstom railway traction systems developed as part of “Shift2rail”. This innovative system is based on silicon carbide (SiC) high power density converters, high efficiency transformers, increased speed motors to improve the whole traction system efficiency. SiC semiconductors (MOSFET) have lower losses than silicon IGBT
Falco, Marco, Desportes, Guillaume, Piton, Michel   +2 more
openaire   +1 more source

Enzymatic and microbial routes to bioplastics: The green chemistry frontier of biopolymers

FEBS Open Bio, EarlyView.
Microbial biosynthesis and engineered enzyme platforms are expanding the design space of polyhydroxyalkanoate bioplastics. By combining fermentation, PHA synthase engineering and cell‐free modular systems, tailored biodegradable polymers can be produced with tunable properties, supporting more sustainable materials and future circular bioeconomy ...
Giovanni Gallo, Emma Piccoli, Luca Bombardi, Martina Aulitto, Salvatore Fusco   +4 more
wiley   +1 more source

Analysis of Electromagnetic Vibration in Permanent Magnet Motors Based on Random PWM Technology

Machines
High vibration noise limits the application of permanent magnet motors in electric locomotive traction. This paper focuses on the high-frequency electromagnetic vibration in traction permanent magnet motors introduced by inverters. It explores the impact
Chi Ma, Yongxiang Wang, Huang Chen, Jianfeng Hong, Yi Wang   +4 more
doaj   +1 more source

Artificial neural network aided real-time simulation of electric traction system

, 2020
Real-time simulation-based validation plays an essential role in the early stage development of electric traction systems. The high-fidelity real-time simulation relies on the accurate modeling of the power electronics and motors and usually represents ...
Hao Bai, Chen Liu, E. Breaz, F. Gao
semanticscholar   +1 more source

Validation of a Genetic Risk Score Combined With Clinical Variables for Predicting Pulmonary Fibrosis in Early Rheumatoid Arthritis

Arthritis Care &Research, EarlyView.
Objective Pulmonary fibrosis (PF) is a severe extra‐articular manifestation of rheumatoid arthritis (RA). This study aimed to externally validate a genetic risk score (GRS) and a combined risk score (CRS) for predicting the risk of RA‐associated PF in an independent cohort of patients with early RA.
Mikael Brink, Austin Wheeler, Bryant R. England, Solbritt Rantapää‐Dahlqvist   +3 more
wiley   +1 more source

Researching several problems of EMU CCE/ERM based on VxWorks 6.x

Dianzi Jishu Yingyong
In the network communication control system of rail transit, in order to ensure the stability of vehicle control and the accuracy and reliability of operation data and fault records, the central control unit (CCU) and event record machine (ERM), the key ...
Zhou Haoshang, Gao Zhaoling
doaj   +1 more source

Operation simulation of traction systems [PDF]

WIT Transactions on The Built Environment, 2008
The objective of this paper is initially to present a basic modeling of the railway traction system. This model includes the basic technologies used today.
Abrahamsson, Lars, Söder, Lennart
openaire   +2 more sources

Current Tracking Adaptive Control of Brushless DC Motors

International Journal of Adaptive Control and Signal Processing, EarlyView.
In this paper, the current tracking for Brushless Direct Current motors is approached considering uncertainty in the parameters of the motor's model. An adaptive control scheme to compensate electrical parameters uncertainty is proposed without requiring any knowledge of the mechanical parameters.
Fernanda Ramos‐García, Axel Coronado‐Andrade, Gerardo Espinosa‐Pérez, Luis Alvarez‐Icaza   +3 more
wiley   +1 more source