Results 31 to 40 of about 116,797 (291)

Fast computation of electro-thermal coupling field of ± 400 kV converter transformer valve side bushing based on proper orthogonal decomposition method

open access: yesInternational Journal of Electrical Power & Energy Systems
The digital twin technology plays a crucial role in enabling the intelligent operation and maintenance of power equipment, as well as facilitating the digital transformation of the power industry.
Zhilin Chu   +7 more
doaj   +1 more source

Exploring the Electro-Thermal Parameters of Reliable Power Modules: Insulated Gate Bipolar Transistor Junction and Case Temperature

open access: yesEnergies, 2018
In the exploration of new energy sources and the search for a path to sustainable development the reliable operation of wind turbines is of great importance to the stability of power systems.
Bo-Ying Liu   +4 more
doaj   +1 more source

Beam Theory of Thermal–Electro-Mechanical Coupling for Single-Wall Carbon Nanotubes

open access: yesNanomaterials, 2021
The potential application field of single-walled carbon nanotubes (SWCNTs) is immense, due to their remarkable mechanical and electrical properties.
Kun Huang, Ji Yao
doaj   +1 more source

Controlling phonons and photons at the wavelength-scale: silicon photonics meets silicon phononics [PDF]

open access: yes, 2018
Radio-frequency communication systems have long used bulk- and surface-acoustic-wave devices supporting ultrasonic mechanical waves to manipulate and sense signals. These devices have greatly improved our ability to process microwaves by interfacing them
Baets, Roel   +3 more
core   +2 more sources

Studying the Effect of Deposition Conditions on the Performance and Reliability of MEMS Gas Sensors

open access: yesSensors, 2007
In this paper, the reliability of a micro-electro-mechanical system (MEMS)-based gas sensor has been investigated using Three Dimensional (3D) coupled multiphysics Finite Element (FE) analysis.
Walied Moussa, Khaled Sadek
doaj   +1 more source

An opto-electro-mechanical system based on evanescently-coupled optical microbottle and electromechanical resonator

open access: yes, 2018
Evanescent coupling between a silica optical microbottle resonator and a GaAs electromechanical resonator is demonstrated. This coupling provides high optical sensitivity and efficient piezoelectric controllability of mechanical motion.
Asano, Motoki   +4 more
core   +1 more source

Improved Temperature Monitoring and Protection Method of Three-Level NPC Application Based on Half-Bridge IGBT Modules

open access: yesIEEE Access, 2022
The overheating stress of power devices is the main cause of converter system failures, so real-time temperature acquisition, as well as timely over-temperature protection, under various operating conditions are key to achieving a more reliable energy ...
Qiang Wang   +5 more
doaj   +1 more source

Preparation of entangled states of microwave photons in a hybrid system via electro-optic effect

open access: yes, 2017
We propose to realize the two-mode continuous-variable entanglement of microwave photons in an electro-optic system, consisting of two superconducting microwave resonators and one or two optical cavities filled with certain electro-optic medium.
Li, Pengbo, Zhu, Daoquan
core   +1 more source

Investigation of Thermo‐Chemical Processes in Commercial MgO‐C Refractory Bricks With and Without MgO‐C Recyclate at Elevated Temperatures

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates thermo‐chemical processes during high‐temperature testing of two commercial MgO‐C brick grades, one containing 47.5 wt.% MgO‐C recyclate. Using ETV, DTA/TG‐MS, XRD, and SEM/EDS/EBSD, mechanisms such as carbothermal reduction of magnesia, impurity incorporation into the secondary MgO surface layer, and calcium‐rich phase ...
Alexander Schramm   +6 more
wiley   +1 more source

Research on multi-physical field coupling of solid electrothermal storage unit

open access: yesEnergy Reports, 2020
In recent years, the solid-state electro-thermal storage device has been connected to the power supply side of the power system for peak regulation by virtue of its high voltage and large capacity characteristics, which plays a positive role in the ...
Zuoxia Xing, Qitong Fu, Lei Chen, Tao Xu
doaj   +1 more source

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