Results 21 to 30 of about 1,025,981 (306)

Junction Temperature Control of a Traction Inverter Based on Three-Level Active Neutral Point-Clamping

Energies
In this study, we propose an active junction temperature control method specifically tailored for traction inverters based on active neutral point-clamped (ANPC) three-level topology.
Haitao Liu, Sen Wang, Liang Hu, Ling Feng, Yue Wang   +4 more
doaj   +1 more source

Design of safety protection system of mine electric locomotive

Gong-kuang zidonghua, 2016
In view of problems that existing coal mine electric locomotive safety control cannot effectively prevent red light running, rear-end collision and collision, a kind of safety protection system of mine electric locomotive was designed.
LI Junhong
doaj   +1 more source

Correction: Liu et al. Junction Temperature Control of a Traction Inverter Based on Three-Level Active Neutral Point-Clamping. Energies 2025, 18, 2241

Energies
The authors wish to make the following corrections to this paper [...]
Haitao Liu, Sen Wang, Liang Hu, Ling Feng, Yue Wang   +4 more
doaj   +1 more source

Traction capabilities of a dual-voltage electric locomotive 2EV120 on the West Siberian Railway

MATEC Web of Conferences, 2018
The paper discusses the traction parameters of an electric locomotive of a new generation. The existing schemes of sections served by electric locomotives and locomotive crews at the studied railway operating domain are presented.
Domanov Kirill, Cheremisin Vasily, Borodin Anatoly   +2 more
doaj   +1 more source

Active Flow Control for High-Speed Trains: From Local Flow Manipulation to Mission-Adaptive Aerodynamic Control

Fluids
High-speed train aerodynamics have mainly been improved by passive design methods, such as streamlined noses, local fairings, and surface smoothing. These methods have achieved clear benefits, but several important aerodynamic problems remain difficult ...
Li Sheng, Kaimin Wang, Xiaodong Chen, Yujun Liu, Tanghong Liu   +4 more
doaj   +1 more source

Research on Technical Improvement of HX_D2 Eight-axle Freight Electric Locomotive

机车电传动, 2021
In order to meet the development needs of China's railway transportation, the technical improvement of HXD2 eight-axle freight electric locomotive was mainly based on independent design, and re-innovative design was carried out on the basis of the ...
Suming YAO, Wen WANG, Minghui HUANG
doaj  

Biodegradable and Biocompatible Functional Polymers for Biomedical Applications

Advanced Functional Materials, EarlyView.
Biodegradable and biocompatible functional polymers integrate electrical, mechanical, and stimuli‐responsive functionalities while enabling programmed degradation under physiological conditions. This review introduces recent advances in conductive, shape‐memory, self‐healing, photocurable, and adhesive polymer systems, emphasizing material design ...
Won Bae Han, Shuvra Mondal, Sungkeun Han, Chan‐Hwi Eom, Venkata Ramesh Naganaboina, Suk‐Won Hwang   +5 more
wiley   +1 more source

Design of a Novel Integrated Control System to Enhance Speed Planning and Control Efficiency for Subway Train

IET Intelligent Transport Systems
The traditional distributed control system of trains faces challenges such as weak functional coordination, limited information sharing, significant control response delays, and low speed control accuracy, thereby impeding the efficient and energy‐saving
Jing Shang, Cheng Li, Xiwen Yuan
doaj   +1 more source

2D Skeletal Muscle Thin Film Actuators Enhance Efficiency of Biohybrid Robots

Advanced Functional Materials, EarlyView.
2D skeletal muscle thin film actuators generate millinewton‐scale forces and millimeter‐scale strokes while remaining functional for over 30 days. Their force density is 20‐fold higher than 3D skeletal muscle actuators, enabling multi‐fin robots with tunable speed and multidirectional steering.
Maheera Bawa, Arielle Berman, Laura Schwendeman, Ferdows Afghah, Seanbiron Johnson, Ritu Raman   +5 more
wiley   +1 more source

Aerodynamic drag reduction of high-speed trains via integrated bogie fairing designs

Railway Engineering Science
The complex mechanical configuration and non-streamlined design of the bogie adversely affect the aerodynamic performance of high-speed trains. Optimizing the underbody flow structure is a key strategy to reduce aerodynamic drag.
Zihao Xie, Weiyi Zeng, Yaoguang Zhou, Le An, Mohammad Rauf Sheikhi, Zhijun Wang, Guangjun Gao, Jian Li   +7 more
doaj   +1 more source