Yuwei Fu
YOU?
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Plasma evolution mechanism and distribution characteristics of supersonic vehicles Open
During the flight of hypersonic vehicle, air will be decomposed and ionized due to the “friction” under ultra-high speed, thus forming a plasma layer. Because the plasma has the ability to absorb and reflect electromagnetic waves, the “bla…
Graphene-Enhanced CuW Composites for High-Voltage Circuit Breaker Electrical Contacts Open
To address the issue of over-standard short-circuit currents in a power system, it is imperative to enhance the comprehensive performance of the electrical contacts, which serve as the lynchpin of circuit breakers, so as to improve the bre…
His-Purkinje system pacing reduced tricuspid regurgitation in patients with persistent atrial fibrillation after left-sided valve surgery Open
Background & objective Tricuspid regurgitation after left-sided valve surgery was a common and difficult problem. Atrial fibrillation was considered to be an important etiology of tricuspid regurgitation. His-Purkinje system pacing (HPSP) …
Effects of rod radius and voltage on streamer discharge in a short air gap Open
Streamer discharge is the inaugural stage of gas discharge, and the average electron energy directly determines the electron collision reaction rate, which is a key parameter for studying streamer discharge. Therefore, taking into account …
View article: Eco-friendly gas insulating medium for next-generation SF<sub>6</sub>-free equipment
Eco-friendly gas insulating medium for next-generation SF<sub>6</sub>-free equipment Open
Gas-insulated equipment (GIE) that utilizes the most potent greenhouse gas sulfur hexafluoride (SF6) as insulation and arc-quenching medium has been widely used in the power industry. Seeking eco-friendly insulating gas with advanced perfo…
Electrochemical Oxidative Selenation of 4 <i>H</i> ‐Pyrido‐[1,2‐ <i>a</i> ]‐pyrimidin‐4‐ones with Diorganyldiselenides Open
An environmentally friendly protocol for the synthesis of C 3 ‐selenylated 4H‐pyrido[1,2‐ a ]pyrimidin‐4‐ones was developed via the electrochemical oxidation, iodide‐catalyzed selenation of 4H‐pyrido[1,2‐ a ]pyrimidin‐4‐ones with diaryl (a…
Effect of angiotensin receptor-neprilysin inhibitor on atrial electrical instability in atrial fibrillation Open
Background and objective Around 33.5 million patients suffered from atrial fibrillation (AF), causing complications and increasing mortality and disability rate. Upstream treatment for AF is getting more popular in clinical practice in rec…
Transport Characteristics of Interfacial Charge in SiC Semiconductor–Epoxy Resin Packaging Materials Open
The silicon carbide (SiC) wide bandgap (WBG) semiconductor power device has been widely applied for its excellent properties. However, the charge accumulated in the interface of SiC semiconductor-related insulation packaging may lead to se…
Study of Relaxations in Epoxy/Rubber Composites by Thermally Stimulated Depolarization Current and Dielectric Spectroscopy Open
Liquid rubber toughened epoxy resins are widely used in electrical equipment and electronic packaging. Previous studies have only investigated the relaxation process of epoxy resins through dielectric spectroscopy. The trap characteristics…
Space charge and trap energy level characteristics of SiC wide bandgap semiconductor Open
Charge carrier transport and accumulation in silicon carbide (SiC) wide bandgap semiconductors caused by the defect and impurity are likely to lead to serious performance degradation and failure of the semiconductor materials, and the high…
A local over-thermal fault evaluation method for C5F10O insulated power equipment based on DWT and BP neural network optimized by GA Open
Due to the growing problem of global warming, C5F10O is promising to replace SF6 as an insulation medium in power equipment because of its low global warming potential and excellent insulation performance and thus has a wide application pr…
The variation of C4F7N, C5F10O, and their decomposition components in breakdown under different pressures Open
The decomposition characteristics of C4F7N and C5F10O are basic to understand their insulating and arc-quenching performance, and the decomposition products are related to the equipment discharge fault and insulation state. A chemical kine…
Theoretical study of the decomposition mechanism of C5F10O in the presence of Cu vapor Open
C5F10O is one of the promising SF6 replacements in power switchgears due to its low global warm potential and high dielectric strength. As Cu metal evaporated by discharges and overheat faults in power switchgears will change the decomposi…
The decomposition mechanism of C4F7N-Cu gas mixtures Open
C4F7N is one of the most remarkable replacements for SF6, and its decomposition mechanism has a great influence on insulating performance and environmental properties. It is noteworthy that discharges or high temperature also evaporates me…
The varying characteristics of C5F10O decomposition components at 300 K - 3500 K with a chemical kinetic model Open
The variation characteristics of C5F10O decomposition components at 300 K – 3500 K are studied with a chemical kinetic model considering neutral reactions. Three chemical kinetic models of SF6 breakdown are built to verify the model adopte…
Theoretical study of the decomposition pathways and products of C5- perfluorinated ketone (C5 PFK) Open
Due to the high global warming potential (GWP) and increasing environmental concerns, efforts on searching the alternative gases to SF6, which is predominantly used as insulating and interrupting medium in high-voltage equipment, have beco…