Yingang Gui
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View article: A TMO-ZnO Heterojunction-Based Sensor for Transformer Defect Detection: A DFT Study
A TMO-ZnO Heterojunction-Based Sensor for Transformer Defect Detection: A DFT Study Open
The gas adsorption and sensing properties of a transition metal oxide (TMO)-ZnO heterojunction-based sensor for H2, CO, and C2H4 are analyzed. It is found that CuO, Ag2O, and Cu2O stably composite onto the surface of ZnO by forming heteroj…
View article: Gas-Sensing Study and Applications of Triboelectric Nanogenerator-Powered CuO-Modified CeO2 Nanomaterials for Ammonia Sensor at Room Temperature
Gas-Sensing Study and Applications of Triboelectric Nanogenerator-Powered CuO-Modified CeO2 Nanomaterials for Ammonia Sensor at Room Temperature Open
Ammonia (NH3) is a common agricultural gas, and its accurate detection is critical to agricultural production. In this study, nano-CuO/CeO2 composites were prepared to achieve a wide range of ammonia detection at room temperature. Characte…
View article: Adsorption and Sensing Performance of Pt(1-3)-Modified TiSe2 for Dissolved Gas (CH4, C2H2, and CO) in Transformer Oil: A DFT Study
Adsorption and Sensing Performance of Pt(1-3)-Modified TiSe2 for Dissolved Gas (CH4, C2H2, and CO) in Transformer Oil: A DFT Study Open
Based on density functional calculations, the adsorption and gas sensing properties of transition metal Pt(1-3)-modified TiSe2 for dissolved gas (CH4, C2H2, CO) in transformer oil were studied in this paper. Firstly, the stable structures,…
View article: Effect of Interfacial Protrusion Defects on the Electrical Strength of Cross-linked Polyethylene
Effect of Interfacial Protrusion Defects on the Electrical Strength of Cross-linked Polyethylene Open
Interfacial protrusion defects between the insulation layer and the semiconducting shield of cross-linked polyethylene cables can distort the electric field in nearby areas, posing risks to the safe and reliable operation of the cables. Th…
View article: The Gas-Sensing Properties of Ag-/Au-Modified Ti3C2Tx (T=O, F, OH) Monolayers for HCHO and C6H6 Gases
The Gas-Sensing Properties of Ag-/Au-Modified Ti3C2Tx (T=O, F, OH) Monolayers for HCHO and C6H6 Gases Open
Based on density functional theory calculations, this study analyzed the gas-sensing performance of Ti3C2Tx (T=O, F, OH) monolayers modified with precious metal atoms (Ag and Au) for HCHO and C6H6 gas molecules. Firstly, stable structures …
View article: Flexible highly-sensitive pressure sensor based on rGO/Fe nanowires composites for wearable human health detection
Flexible highly-sensitive pressure sensor based on rGO/Fe nanowires composites for wearable human health detection Open
Flexible pressure sensors applied in wearable detection often face challenges, such as low sensitivity, large device size, poor flexibility, and long response time. This study aims to design and develop high-performance pressure-sensitive …
View article: Adsorption Properties of Metal Atom (Co, V, W, Zr)-Modified MoTe2 for CO, CH3CHO, and C6H6 Gases: A DFT Study
Adsorption Properties of Metal Atom (Co, V, W, Zr)-Modified MoTe2 for CO, CH3CHO, and C6H6 Gases: A DFT Study Open
This study investigates the adsorption characteristics of the pristine MoTe2 monolayer and the metal atom (Co, V, W, Zr)-modified MoTe2 monolayer on the hazardous gases CO, CH3CHO, and C6H6 based on the density functional theory. The adsor…
View article: Effects of Water Absorption on the Insulating Properties of Polypropylene
Effects of Water Absorption on the Insulating Properties of Polypropylene Open
Moisture has been a crucial problem during the operation of cable systems. When we are faced with polypropylene (PP)-based insulation for the development of cable systems, there are few reports on the effects of water intrusion on the elec…
View article: Gas-Sensing Performance of Metal Oxide Heterojunction Materials for SF6 Decomposition Gases: A DFT Study
Gas-Sensing Performance of Metal Oxide Heterojunction Materials for SF6 Decomposition Gases: A DFT Study Open
The online monitoring of GIS equipment can be realized through detecting SF6 decomposition gasses. Metal oxide heterojunctions are widely used as gas-sensing materials. In this study, the structural and electrical properties of In2O3-ZnO a…
View article: Distributed Vibration Monitoring System for 10 kV-400 kVA 3D Wound Core Transformer under Progressive Short-Circuit Impulses
Distributed Vibration Monitoring System for 10 kV-400 kVA 3D Wound Core Transformer under Progressive Short-Circuit Impulses Open
As large-scale, high-proportion, and efficient distribution transformers surge into the grids, anti-short circuit capability testing of transformer windings in efficient distribution seems necessary and prominent. To deeply explore the inf…
View article: Transformer Connection Terminal Registration Based on Objective Function
Transformer Connection Terminal Registration Based on Objective Function Open
In recent years, the traditional ICP algorithm has high requirements for the initial position of point clouds, and low registration ability for point clouds with low overlap. The Microsoft Kinect depth sensor was used to obtain the point c…
View article: Adsorption and Gas-Sensing Properties of Agn (n = 1–4) Cluster Doped GeSe for CH4 and CO Gases in Oil-Immersed Transformer
Adsorption and Gas-Sensing Properties of Agn (n = 1–4) Cluster Doped GeSe for CH4 and CO Gases in Oil-Immersed Transformer Open
The adsorption mechanism of CO and CH4 on GeSe, modified with the most stable 1–4 Ag-atom clusters, is studied with the help of density functional theory. Adsorption distance, adsorption energy, total density of states (TDOS), projected de…
View article: Adsorption properties of Ni cluster modified TiO <sub>2</sub> (1 0 1) towards SF <sub>6</sub> decomposition gases
Adsorption properties of Ni cluster modified TiO <sub>2</sub> (1 0 1) towards SF <sub>6</sub> decomposition gases Open
Online detection of insulation defects the decomposition products of SF 6 plays a key role in ensuring the safe operation of the gas‐insulated switchgear (GIS) equipment. The pristine TiO 2 (1 0 1) modified by Ni cluster (1–3 Ni atoms) is …
View article: Adsorption characteristics of metal modified AlNNT on partial discharge air decomposition components in switchgear
Adsorption characteristics of metal modified AlNNT on partial discharge air decomposition components in switchgear Open
The online detection of partial discharge air decomposition components in switchgear is an effective means to monitor the running state of switchgear. Based on first principles, the adsorption and sensing properties of Pd, Co, Rh, Pt, and …
View article: Gas-Sensing Properties of B/N-Modified SnS2 Monolayer to Greenhouse Gases (NH3, Cl2, and C2H2)
Gas-Sensing Properties of B/N-Modified SnS2 Monolayer to Greenhouse Gases (NH3, Cl2, and C2H2) Open
The adsorption capacity of intrinsic SnS2 to NH3, Cl2 and C2H2 is very weak. However, non-metallic elements B and N have strong chemical activity, which can significantly improve the conductivity and gas sensitivity of SnS2. Based on densi…
View article: Gas-Sensing Property of TM-MoTe2 Monolayer towards SO2, SOF2, and HF Gases
Gas-Sensing Property of TM-MoTe2 Monolayer towards SO2, SOF2, and HF Gases Open
Detecting the characteristic decomposition products (SO2, SOF2, and HF) of SF6 is an effective way to diagnose the electric discharge in SF6-insulated equipment. Based on first-principles calculations, Au, Ag, and Cu were chosen as the sur…
View article: Utilization of Both Machine Vision and Robotics Technologies in Assisting Quality Inspection and Testing
Utilization of Both Machine Vision and Robotics Technologies in Assisting Quality Inspection and Testing Open
Inspecting the smoothness and durability of the exterior and interior surfaces of manufactured products such as large passenger aircraft requires utilizing manufacturing precision instruments. Manual techniques are mainly adopted in inspec…
View article: Gas-Sensing Properties of Cu<sub>2</sub>S–MoSe<sub>2</sub> Nanosheets to NO<sub>2</sub> and NH<sub>3</sub> Gases
Gas-Sensing Properties of Cu<sub>2</sub>S–MoSe<sub>2</sub> Nanosheets to NO<sub>2</sub> and NH<sub>3</sub> Gases Open
Cu2S-MoSe2 was selected as a gas-sensing material to detect NO2 and NH3. Based on density functional theory calculations, the adsorption structures, density of states, molecular orbit, and recovery time were studied to analyze the gas-sens…
View article: Influence of shape on power conversion efficiency of Ni-Zn ferrite/piezoelectric magnetoelectric gyrator
Influence of shape on power conversion efficiency of Ni-Zn ferrite/piezoelectric magnetoelectric gyrator Open
Reducing the demagnetization effects via shape optimization in tri-layer magnetoelectric (ME) composite is an effective way to improve its power transfer conditions. To accomplish this goal, enhanced dynamic piezomagnetic coefficient of Ni…
View article: First-Principles Insight into a Ru-Doped SnS<sub>2</sub> Monolayer as a Promising Biosensor for Exhale Gas Analysis
First-Principles Insight into a Ru-Doped SnS<sub>2</sub> Monolayer as a Promising Biosensor for Exhale Gas Analysis Open
Realizing the diagnosis of lung cancer at an inchoate stage is significant to get valuable time to conduct curative surgery. In this work, we relied on a density functional theory (DFT)-proposed Ru-SnS2 monolayer as a novel, promising bios…
View article: Influence of Pd Clusters Doping on Gas Sensing Properties of TiO₂(101) Nanotubes to SF₆ Decomposition Products
Influence of Pd Clusters Doping on Gas Sensing Properties of TiO₂(101) Nanotubes to SF₆ Decomposition Products Open
Detection and analysis of sulfur hexafluoride (SF6) decomposition components is one of the most used methods to realize online monitoring of gas insulated switchgear (GIS) faults. In this paper, Pd3-doped anatase TiO2(101) surface was cons…
View article: First-Principles Calculations of Gas-Sensing Properties of Pd Clusters Decorated AlNNTs to Dissolved Gases in Transformer Oil
First-Principles Calculations of Gas-Sensing Properties of Pd Clusters Decorated AlNNTs to Dissolved Gases in Transformer Oil Open
The potential decoration structures of Pd atom, Pd2 cluster and Pd3 cluster on the AlN nanotubes (AlNNTs) surface were initially studied. As the structure of Pd2 decoration on AlNNTs is similar to that of two single Pd atom decoration, onl…
View article: Pt Cluster Modified h-BN for Gas Sensing and Adsorption of Dissolved Gases in Transformer Oil: A Density Functional Theory Study
Pt Cluster Modified h-BN for Gas Sensing and Adsorption of Dissolved Gases in Transformer Oil: A Density Functional Theory Study Open
Hexagonal-Boron nitride nanotubes (h-BN) decorated with transition metals have been widely studied due to their enhanced physicochemical properties. In this paper, Pt cluster-modified h-BN is proposed as a sensitive material for a novel ga…
View article: Theoretical Study of SOF2 Adsorption on Pd/Pt-Ni(111) Bimetallic Surfaces
Theoretical Study of SOF2 Adsorption on Pd/Pt-Ni(111) Bimetallic Surfaces Open
Partial discharge has become a serious threat to the stable operation of gas-insulated switchgears. SOF2 is a characteristic decomposition component of SF6 decomposition components under partial discharge, which further deteriorate the sev…
View article: Au Catalyst-Modified MoS<sub>2</sub> Monolayer as a Highly Effective Adsorbent for SO<sub>2</sub>F<sub>2</sub> Gas: A DFT Study
Au Catalyst-Modified MoS<sub>2</sub> Monolayer as a Highly Effective Adsorbent for SO<sub>2</sub>F<sub>2</sub> Gas: A DFT Study Open
To ensure the stable operation of gas-insulated equipment, removal of SF6 decomposition products of sulfur hexafluoride (SF6) is one of the best methods. SO2F2 is one of the typical decomposition products of SF6, while the Au-modified MoS2…
View article: Ab Initio Study of SOF<sub>2</sub> and SO<sub>2</sub>F<sub>2</sub> Adsorption on Co-MoS<sub>2</sub>
Ab Initio Study of SOF<sub>2</sub> and SO<sub>2</sub>F<sub>2</sub> Adsorption on Co-MoS<sub>2</sub> Open
The detection of partial discharge by analyzing the decomposition components of SF6 gas in gas-insulated switchgears plays an important role in the diagnosis and assessment of the operational state of power equipment. Recently, the applica…