Xingchen Guo

• Dalian University of Technology

Clean energy is a major trend. The importance of photovoltaic power generation is also growing. Photovoltaic power generation is mainly affected by the weather. It is full of uncertainties. Previous work has relied chiefly on historical photovoltaics data for time series forecasts. However, unforeseen weather conditions can sometimes skew. Conseque...

This study proposes a load prediction method for multi‐type electric vehicle charging stations based on secondary decomposition and feature selection. First, the original load sequence of an electric vehicle charging station is decomposed into relatively simple components using variational mode decomposition (VMD). The residual term after the decom...

Due to the randomness of wind power generation, the output power of a wind farm will fluctuate. As a result, the power grid can face a need for increased reserve capacity, increasing scheduling difficulties, and wind farm abandonment. An effective way to address these problems is to accurately predict the output power of wind farms. Traditional pre...

This paper presents an effective method for multiple talker localisation using only a single microphone in a room. One of the main challenge here is obtaining a model that can be used for estimating the localization parameter. This model must be sensitive to all possible speaker locations and correctly discriminate their positions. The reverberant...

A tangential ultrasonic vibration-assisted gear grinding (TUVAGG) system was proposed in this paper to enhance the machining accuracy and performance of gears. Firstly, the longitudinal resonant vibration system of the TUVAGG was designed based on the non-resonant theory. The frequency equation and the displacement characteristics for the vibration...

Financial markets are time-evolving complex systems containing different financial entities, such as banks, corporations and institutions that interact through transactions and respond to external economic and political events. They can be conveniently represented as a network structure. In this paper, we analyse the unweighted and weighted market...

Gear plays an important role in transmitting motion and power system, and a new promising process should be utilized to enhance the machining accuracy and performance. In this paper, the ultrasonic vibration was superimposed into the gear to carry out the tangential ultrasonic vibration-assisted grinding gear (TUVAGG). The longitudinal resonant vib...

To explore the formation law and influence factors of three-dimensional geometry in axial turning surface, the turning experiment of 7075 aluminum alloy was carried out by using double excitation three-dimensional ultrasonic elliptical vibration method. Based on the theory of turning kinematics, the tool tip trajectory model of three-dimensional ul...

In this paper, we present a novel thermodynamically based analysis method for directed networks, and in particular for time-evolving networks in the finance domain. Based on an analogy with a dilute gas in statistical mechanics, we develop a partition function for a network composed of directed motifs. The method relies on the decomposition of dire...

Gears are important motion and power transmission components and enhancing their machining accuracy and performance. In this work, a novel processing of ultrasonic vibration-assisted forming grinding gear (UVAFGG) is proposed, which involves the superimposition of ultrasonic vibration on the gear, and the thermo-mechanical coupling effect on surfac...

In order to obtain good fatigue resistance and surface quality for the inner raceway of a bearing, the cut-in-type grinding test of M50 bearing inner raceway was carried out by using axial ultrasonic vibration. Based on abrasive kinematics, the abrasive trajectory cut-in-type axial ultrasonic vibration grinding is established, and the mathematical...