Results 51 to 60 of about 1,819 (220)
Design and Simulation of an Intelligent Current Monitoring System for Urban Rail Transit
IEEE Access, 2020 Many urban rail transit (URT) systems adopt the DC traction power supply system. Because of the impedance and incomplete ground insulation of the running track, it is inevitable for a part of the traction current to flow into the ground from the track ...
Cheng Yao +4 more
doaj +1 more source
Electrospun conducting polymers: recent trends and the transition towards a sustainable future
Polymer International, EarlyView.This review discusses the electrospinning of conducting polymers, detailing procedures, fibrous morphologies, improved properties, applications in electronics, and challenges, while outlining future directions for nanofibre‐based devices in various fields.
Xenofon Karagiorgis +3 more
wiley +1 more source
Nowcasting convective cores using deep learning
Quarterly Journal of the Royal Meteorological Society, EarlyView.Key findings: •$$ \bullet $$ Network for Nowcasting Convective Cores (NetNCC) has considerable potential for convective storm nowcasting and the development of early warning systems for extreme rainfall. •$$ \bullet $$ Skilful nowcasts of convective cores are obtained at fine spatial resolutions (<30km$$ <30\kern0.15em \mathrm{km} $$) for up to 2 hr ...
Jawairia A. Ahmad +5 more
wiley +1 more source
Electric energy storage in DC traction power supply systems
, 2018 Electric energy storage systems have been known for a long time. In order to store energy the following solutions may be used: mechanical (rotating wheels, compressed air), chemical (hydrogen), electrical (batteries and supercapacitors), and others. Supercapacitors and batteries are most common in electric traction systems.
openaire +2 more sources
Quality and Reliability Engineering International, EarlyView.ABSTRACT Electric multiple unit (EMU) trains, widely used in modern railway transportation, use Nickel–Cadmium (Ni–Cd) batteries to power auxiliary systems on board, including lighting, ventilation, control electronics, and emergency systems. These batteries are often connected in parallel to ensure a wider power supply range for electrical loads that ...
Christian Capezza +4 more
wiley +1 more source
Journal of Field Robotics, EarlyView.ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang +3 more
wiley +1 more source
Chengshi guidao jiaotong yanjiuObjective As modular co-phase power supply devices are used in Guangzhou Metro Line 18,it is necessary to study the energy-saving operation optimization strategy of the co-phase energy storage power supply system in order to solve the problem of low ...
HOU Feng, WANG Shuai, SUN Zhongrui
doaj +1 more source
Journal of Field Robotics, EarlyView.ABSTRACT Grass mowing is one of the most resource‐consuming activities in green maintenance, whether in private areas such as home gardens or in public spaces like urban parks. In recent years, concerns related to climate change, human health, and sustainability have become increasingly prominent in green maintenance, leading manufacturers and industry
Andrea Palladini +3 more
wiley +1 more source
Chengshi guidao jiaotong yanjiu[Objective] To enable accurate determination of DC (direct current) bus overcurrent protection in metro DC traction power supply system and enhance the selectivity of fault tripping in the system, the research on a suitable DC bus overcurrent protection ...
LIU Yuxing +5 more
doaj +1 more source
Outracing a National Level Model Racing Car Champion: A Hybrid Model‐Based Data‐Driven Approach
Journal of Field Robotics, EarlyView.ABSTRACT This paper discusses lap time optimization, focusing on a single lap without considering opponents in autonomous racing. The paper presents a control and optimization architecture composed of a model‐based low level controller and a higher level iterative learning algorithm with the goal of obtaining the fastest qualifying lap in autonomous ...
Mustafa Alp +3 more
wiley +1 more source