Results 71 to 80 of about 3,207 (218)
Sensors Burned Cause Analysis of High-speed EMUs
, 2014 In order to solve the malfunctions of bogie gear-box temperature sensor, axle head speed sensor, and axle temperature sensor for breakdown by high voltage at operation process of CRH380BL trains, the EMUs grounding system was studied, and a simple grounding model was built and analyzed, which gave the malfunctions solutions and provided grounding ...
ZHANG Qiumin +4 more
openaire +1 more source
Osteohistology of two phorusrhacids reveals uninterrupted growth strategy
The Anatomical Record, EarlyView.Abstract Phorusrhacidae were apex predators that primarily dominated South America ecosystems for at least 40 million years with their imposing size and predatory lifestyle—yet some aspects of their biology remain poorly understood. Osteohistology is a tool for understanding growth dynamics and biomechanical adaptations.
Lotta Dreyer +2 more
wiley +1 more source
Application of Titanium Alloy Materials in High-speed EMU Bogie Frames
Chengshi guidao jiaotong yanjiuObjectiveWhole-vehicle lightweighting has become a focus issue in the technology development of new generation high-speed EMU (electric multiple unit). At present, various existing high-speed EMU trains in China still extensively use steel materials.
Zhaojin LIU +3 more
doaj +1 more source
Feasibility Study on Raising the Operation Speed of EMU from 350 km/h to 400 km/h
机车电传动, 2020 In order to further improve people's travel experience and service quality, improve transportation organization efficiency and reduce operation cost, CRRC Changchun Railway Vehicles Co., Ltd. plans to develop 400 km/h high-speed EMU.
Lei WANG, Dongming YU, Yong DING
doaj
Experimental methods in chemical engineering: Magnetometry
The Canadian Journal of Chemical Engineering, EarlyView.Abstract Magnetometry is a non‐invasive technique to characterize the behaviour of magnetic materials of which the most common contain Fe, Co, and Ni. Vibrating sample magnetometers (VSMs) vibrate samples at a fixed frequency in a static, homogeneous magnetic field to induce a voltage in pick up coils according to Faraday's law of induction.
Michael Claeys +3 more
wiley +1 more source
Parallel Control of Auxiliary Inverters for High-Speed EMU
Kongzhi Yu Xinxi Jishu, 2014 The control strategy of parallel inverters was analyzed and implemented with the background of high-speed EMU program. By calculating positive power and negative power, output voltage and frequency of auxiliary inverters were controlled with the PQ droop
WEI Kai, ZHANG Zhixue, SHANG Jing
doaj
Magnetic Electrocatalysts Enabling a High‐Rate Capability in Lithium‐Oxygen Batteries
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.This study introduces zinc ferrite (ZnFe2O4) nanoparticles with tunable magnetic properties as bifunctional electrocatalysts for lithium‐oxygen batteries. Under an applied magnetic field, these catalysts significantly enhance oxygen reduction and evolution reactions by promoting spin‐aligned charge transfer and ion diffusion. The approach achieves high
Yimin Chen +7 more
wiley +1 more source
Electrostatic generator enhancements for powering IoT nodes via efficient energy management
Microsystems & NanoengineeringElectrostatic generators show great potential for powering widely distributed electronic devices in Internet of Things (IoT) applications. However, a critical issue limiting such generators is their high impedance mismatch when coupled to electronics ...
Zibo Wu +5 more
doaj +1 more source
Light‐Modulated Exchange Bias in Multiferroic Heterostructures
Electron, EarlyView.In this article, exchange bias and magnetization are modulated with visible light at room temperature in PMN‐PZT/FeGa/IrMn multiferroic heterostructures. Photostrictive effect is the main mechanism leading to the modulation of magnetic anisotropy and interfacial exchange bias coupling between the ferromagnetic and antiferromagnetic layers.
Huan Tan +9 more
wiley +1 more source
Localizing value of cutaneous ictal phenomena: A systematic review
Epileptic Disorders, EarlyView.Abstract Objective Clinical observation of autonomic signs during seizures can aid in localizing the epileptogenic zone (EZ). We performed a systematic review and meta‐analysis to evaluate the localizing value of ictal cutaneous phenomena—piloerection, sweating, pallor, and flushing—in focal epilepsy and their relevance to presurgical evaluation ...
R. Rocamora +7 more
wiley +1 more source