Zezhong Wang
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View article: Fast, Slow, and Tool-augmented Thinking for LLMs: A Review
Fast, Slow, and Tool-augmented Thinking for LLMs: A Review Open
Large Language Models (LLMs) have demonstrated remarkable progress in reasoning across diverse domains. However, effective reasoning in real-world tasks requires adapting the reasoning strategy to the demands of the problem, ranging from f…
View article: Numerical Analysis of Rib Shape Effects on Entransy and Field Synergy in a Ribbed Sinusoidal Wavy Microchannel
Numerical Analysis of Rib Shape Effects on Entransy and Field Synergy in a Ribbed Sinusoidal Wavy Microchannel Open
View article: Vibration characteristics of a single‐phase four‐column auto‐transformer core excited by geomagnetically induced currents
Vibration characteristics of a single‐phase four‐column auto‐transformer core excited by geomagnetically induced currents Open
During geomagnetic storms, geomagnetically induced currents (GICs) occur in the power grid. GIC is a quasi‐direct current, which is represented by using a fixed DC current, the authors propose an approach that combines field‐circuit‐couple…
View article: Zr0.9sc0.1o2/ Zr0.92y0.08o2 Bilayer Solid Electrolytes with High Ionic Conductivity for Oxygen Sensors in Low Oxygen Partial Pressure Environments
Zr0.9sc0.1o2/ Zr0.92y0.08o2 Bilayer Solid Electrolytes with High Ionic Conductivity for Oxygen Sensors in Low Oxygen Partial Pressure Environments Open
View article: Zr0.9sc0.1o2/ Zr0.92y0.08o2 Bilayer Solid Electrolytes with High Ionic Conductivity for Oxygen Sensors in Low Oxygen Partial Pressure Environments
Zr0.9sc0.1o2/ Zr0.92y0.08o2 Bilayer Solid Electrolytes with High Ionic Conductivity for Oxygen Sensors in Low Oxygen Partial Pressure Environments Open
View article: The Hydraulic and Boundary Characteristics of a Dike Breach Based on Cluster Analysis
The Hydraulic and Boundary Characteristics of a Dike Breach Based on Cluster Analysis Open
It is important to determine the hydraulic boundary eigenvalues of typical embankment breaches before carrying out research on their occurrence mechanisms and assessing their repair technology. However, it is difficult to obtain the hydrau…
View article: Online Big-Data Monitoring and Assessment Framework for Internal Combustion Engine with Various Biofuels
Online Big-Data Monitoring and Assessment Framework for Internal Combustion Engine with Various Biofuels Open
Article Online Big-Data Monitoring and Assessment Framework for Internal Combustion Engine with Various Biofuels Ming Zhang 1,*, Vikas Sharma 2, Zezhong Wang 1, Yu Jia 1, Abul Kalam Hossain 1, and Yuchun Xu 1 1 College of Engineering and P…
View article: Local hydrothermal characteristics and temperature uniformity improvement of microchannel heat sink with non-uniformly distributed grooves
Local hydrothermal characteristics and temperature uniformity improvement of microchannel heat sink with non-uniformly distributed grooves Open
In order to improve the temperature uniformity of bottom walls, a novel design of microchannel heat sink with From-Sparse-To-Dense embowed grooves (MC-FSTD) was proposed as well as a comparative one with From-Dense-To-Sparse embowed groove…
View article: Empower Large Language Model to Perform Better on Industrial Domain-Specific Question Answering
Empower Large Language Model to Perform Better on Industrial Domain-Specific Question Answering Open
Large Language Model (LLM) has gained popularity and achieved remarkable results in open-domain tasks, but its performance in real industrial domain-specific scenarios is average due to its lack of specific domain knowledge. This issue has…
View article: Empower Large Language Model to Perform Better on Industrial Domain-Specific Question Answering
Empower Large Language Model to Perform Better on Industrial Domain-Specific Question Answering Open
Fangkai Yang, Pu Zhao, Zezhong Wang, Lu Wang, Bo Qiao, Jue Zhang, Mohit Garg, Qingwei Lin, Saravan Rajmohan, Dongmei Zhang. Proceedings of the 2023 Conference on Empirical Methods in Natural Language Processing: Industry Track. 2023.
View article: Local Hydrothermal Characteristics and Temperature Uniformity Improvement of Microchannel Heat Sink with Non-Uniformly Distributed Grooves
Local Hydrothermal Characteristics and Temperature Uniformity Improvement of Microchannel Heat Sink with Non-Uniformly Distributed Grooves Open
View article: Table of Contents
Table of Contents Open
View article: Predictive Maintenance for Remanufacturing Based on Hybrid-Driven Remaining Useful Life Prediction
Predictive Maintenance for Remanufacturing Based on Hybrid-Driven Remaining Useful Life Prediction Open
Remanufacturing is an activity of the circular economy model whose purpose is to keep the high value of products and materials. As opposed to the currently employed linear economic model, remanufacturing targets the extension of products a…
View article: Analysis of current characteristics of transformer bias caused by subway stray current based on measured data
Analysis of current characteristics of transformer bias caused by subway stray current based on measured data Open
The metro stray current, as the driving source which causes the magnetic bias of the urban network transformer, has the characteristics of rapid change, complex propagation path, and many influencing factors.It’s unknown where the stray cu…
View article: A plane wave method based on approximate wave directions for two dimensional Helmholtz equations with large wave numbers
A plane wave method based on approximate wave directions for two dimensional Helmholtz equations with large wave numbers Open
In this paper we present and analyse a high accuracy method for computing wave directions defined in the geometrical optics ansatz of Helmholtz equation with variable wave number. Then we define an "adaptive" plane wave space with small di…
View article: Temperature Rise Test and Thermal-Fluid Coupling Simulation of an Oil-Immersed Autotransformer Under DC Bias
Temperature Rise Test and Thermal-Fluid Coupling Simulation of an Oil-Immersed Autotransformer Under DC Bias Open
Loss and temperature increase due to DC bias occurring in power transformers may lead to damage and reduced lifespan. To study the influence of different levels of DC bias on the temperature rise in transformer structural components, 0, 8,…
View article: A geometric optics ansatz-based plane wave method for two dimensional Helmholtz equations with variable wave numbers
A geometric optics ansatz-based plane wave method for two dimensional Helmholtz equations with variable wave numbers Open
In this paper we develop a plane wave type method for discretization of homogeneous Helmholtz equations with variable wave numbers. In the proposed method, local basis functions (on each element) are constructed by the geometric optics ans…
View article: Analysis of the DC Bias Effects on the UHV Autotransformer with Rated Load Based on a Reduced-Scale Model Experiment
Analysis of the DC Bias Effects on the UHV Autotransformer with Rated Load Based on a Reduced-Scale Model Experiment Open
The DC bias of transformers as a result of geomagnetically induced currents (GIC), monopole operation of high voltage direct current (HVDC) transmission and the increasing power electronic devices in the power grid, creates a high magnitud…
View article: No Load Simulation and Downscaled Experiment of UHV Single-Phase Autotransformer Under DC Bias
No Load Simulation and Downscaled Experiment of UHV Single-Phase Autotransformer Under DC Bias Open
The time-domain field-circuit coupled finite element method (FEM) is widely used to analyze the DC effects on transformers. However, the long transient process of calculation will encounter difficulties due to the tremendous requirement of…
View article: DC Grounding Electrode Potential Based on a Kriging Geoelectric Structure Model
DC Grounding Electrode Potential Based on a Kriging Geoelectric Structure Model Open
The inaccuracy of the geoelectric structure model is the main reason for the low accuracy of the evaluation of the impact of the ground-return current (GRC) of ultra-high voltage direct current (UHVDC) on the AC power grid. Given insuffici…
View article: Monitoring Experiment of Electromagnetic Interference Effects Caused by Geomagnetic Storms on Buried Pipelines in China
Monitoring Experiment of Electromagnetic Interference Effects Caused by Geomagnetic Storms on Buried Pipelines in China Open
The electromagnetic interference effects on buried pipelines induced by geomagnetic field are monitored for the first time in China, including geomagnetically induced current (GIC) and pipe-to-soil potential (PSP). It is of great significa…
View article: Calculation of induced geoelectric field distribution in wide area geomagnetic storms based on time harmonic fitting
Calculation of induced geoelectric field distribution in wide area geomagnetic storms based on time harmonic fitting Open
Ate magnetic field that changes during the magnetic storm will produce the geomagnetic ally induced current (GIC), which will threaten the safe operation of the power grid. It is very important to accurately calculate the effect of GIC on …
View article: Calculating for surface electric field of converter valve shield system with fast multipole curved boundary element method
Calculating for surface electric field of converter valve shield system with fast multipole curved boundary element method Open
The accurate and fast calculation of surface electric field of DC converter valve shield system have guiding significance in the designing process. However, the electrostatic field analysis is a large‐scale problem with low efficiency usin…
View article: Shock Wave in Leader Discharge Observed Using Mach-Zehnder Interferometry
Shock Wave in Leader Discharge Observed Using Mach-Zehnder Interferometry Open
A leader is an electric discharge mechanism in long-air-gap discharges. In this work, we report the shock wave phenomenon in an air-gap leader discharge observed using a Mach-Zehnder interferometer with a time resolution of several microse…
View article: Analysis of the principle and application of dynamic reactive power compensation device
Analysis of the principle and application of dynamic reactive power compensation device Open
Reasonable reactive power compensation is very important for the transmission and distribution system, the current main dynamic compensation for the TCR SVC, MCR SVC and SVG three ways.In this paper, the working characteristics and basic p…
View article: Wireless Power Transfer Based on Magnetic Coupling
Wireless Power Transfer Based on Magnetic Coupling Open
Wireless transmission of electric energy has always been a dream for people. The wireless power transmission technology based on induction coupling is the easiest way. We studied the factors that affect the magnetic coupling wireless power…
View article: An Approach to Model Earth Conductivity Structures with Lateral Changes for Calculating Induced Currents and Geoelectric Fields during Geomagnetic Disturbances
An Approach to Model Earth Conductivity Structures with Lateral Changes for Calculating Induced Currents and Geoelectric Fields during Geomagnetic Disturbances Open
During geomagnetic disturbances, the telluric currents which are driven by the induced electric fields will flow in conductive Earth. An approach to model the Earth conductivity structures with lateral conductivity changes for calculating …