Results 81 to 90 of about 23,261,811 (330)

Features of relay protection function in distributed traction power supply systems [PDF]

, 2018
Впровадження альтернативних джерел електричної енергії у систему тягового електропостачання розподіленого типу підвищує енергетичну ефективність та надійність функціонування, але при цьому змінюється характер протікання енергообмінних процесів, що ...
Губський, Петро Вячеславович, Данилов, Олексій Анатолійович, Зубенко, Василь Анатолійович, Косарєв, Євген Миколайович, Пулін, Микола Миколайович, Сиченко, Віктор Григорович   +5 more
core   +1 more source

Switchable Supramolecular Adhesive by Tuning Interfacial Bonding and Modulus

Advanced Functional Materials, EarlyView.
The supramolecular adhesive (HyDiP) shows reversible adhesion and recyclability. In the dehydrated state, it is dense, stiff (E ≈445 MPa), transparent, and provides strong bonding with adhesion strengths up to 4.65 MPa. In the hydrated state, it becomes porous, soft (E ≈0.11 MPa), and detaches easily, enabling sustainable high‐strength applications ...
Rumin Fu, Cairong Xiao, Zihao Du, Changhong Linghu, Yongdong Shi, Chuyang Xiang, Mingxin Wan, Guoxin Tan, Limin Lu, Chengyun Ning, K Jimmy Hsia   +10 more
wiley   +1 more source

Nano‐ and Micro‐Sized Solid Materials Used as Antiviral Agents

Advanced Functional Materials, EarlyView.
Due to the rise of viral infections in humans and possible viral outbreaks, the use of nano‐ or micro‐sized materials as antiviral agents is rapidly increasing. This review explores their antiviral properties against RNA and DNA viruses, either as a prevention or a treatment tool, by delving into their mechanisms of action and how to properly assess ...
Orfeas‐Evangelos Plastiras, Imelda Raczkiewicz, Peggy Bouquet, Jean‐Philippe Dacquin, Jeremy Dhainaut, Anne Goffard, Christophe Volkringer   +6 more
wiley   +1 more source

Application of SiC Devices in Traction System of Urban Rail Vehicles

机车电传动, 2020
The high frequency, high temperature and high voltage characteristics of SiC devices bring system application advantages to the design of urban rail traction system, but also bring some application challenges.
Hua LI, Weiwei WAN, Xionghui TANG, Yongjiang LIU, Zhenjun LIN   +4 more
doaj  

Supercapacitor Enhanced Battery Traction Systems – Concept Evaluation [PDF]

World Electric Vehicle Journal, 2008
This review paper gives an overview of state-of-the-art technology regarding supercapacitors, briefly discusses the aspect of supercapacitor balancing and compares and assesses two system designs incorporating supercapacitors, batteries and in one case with an interconnected converter.
Van Mulders, Frederik, Timmermans, Jean-Marc, Mccaffrey, Zach, Van Mierlo, Joeri, Van Den Bossche, Peter   +4 more
openaire   +3 more sources

Operations of electric vehicle traction system

Mathematical Modelling of Engineering Problems, 2018
Received: 4 April 2018 Accepted: 4 May 2018 After revealing that around 1.3 million deaths every year is due to greenhouse gas emissions and fossil-fuel pollutants being pumped into the atmosphere by transportation industry and vehicles, a global revolt ...
A. Youssef
semanticscholar   +1 more source

A Novel Microfluidic System for 3D Epidermis and Full‐Thickness Skin Growth for Nanoparticle Safety Assessment

Advanced Healthcare Materials, EarlyView.
This work presents a novel, dynamically perfused, configurable microfluidic system for epidermis‐only (E and full‐thickness skin (FT SoC) growth, emulating human skin structure and barrier function. Upon TiO2 nanoparticle exposure, the system reveals compromised barrier integrity, reduced metabolic activity, increased permeability, and chemokine‐driven
Samantha Costa, Ana B. Carneiro, Filipa Lebre, João Meneses, Alar Ainla, Cacilda Moura, Ernesto Alfaro‐Moreno, Ana R. Ribeiro   +7 more
wiley   +1 more source

Hydrocolloid‐Based Multiwavelength Stretchable QD‐OLED Patch for Simultaneous Neonatal Jaundice and Dermatitis Treatment with Biosignal Monitoring

Advanced Healthcare Materials, EarlyView.
Comparison of therapeutic and diagnostic applications of a surface‐emitting light source with multiwavelength emission characteristics. Abstract Conventional light‐emitting‐diode‐based light sources suffer from rigidity, localized heating, and poor adaptability to skin deformation, limiting their use in skin‐attached medical devices.
In Ho Kim, Young Woo Kim, Jae‐Young Jeong, Ye Ji Shin, Chaeyeong Lee, Jae Gyun Choi, Oh Kwan Kwon, Kyoung Hwa Kim, Sang Jik Kwon, Eou‐Sik Cho, Yongmin Jeon   +10 more
wiley   +1 more source

Integrated Bidirectional DC-DC Energy Storage Low-floor Trams Traction System

机车电传动, 2016
The vehicle parameters and performance requirements of integrated bidirectional DC-DC energy storage low-floortrams traction system were introduced, and the traction system traction/braking characteristics, system composition, system matchingcontrol ...
Yuan Wenye, Chen Wenguang, Xia Wenjie, Lin Wenbiao, Zhang Lujun   +4 more
doaj  

A Beat Frequency Suppression Control Method Based on a Second-order Generalized Integrator

机车电传动, 2021
In rail transit traction systems, due to the use of single-phase recti fiers, the DC input voltage of the inverter contains a ripple component whose frequency is twice the frequency of the grid-side voltage, which will cause the torque and current of the 
Rong LIU, Ke CHEN, Tiangui RAO
doaj