bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analysis of GMT Composite Material-based Building Formwork
Authors: Luo Dongyan , Zou Xin 
Published: June 2023

Abstract
GMT (Glass Mat Reinforced Thermoplastics) is a new type of composite material made of mica and glass fiber blended into a polypropylene resin substrate, and it is durable, lightweight, high-strength, translucent and easy to install, what’s more, it can be recycled and reused to meet the needs of energy conservation and environmental protection. It is one of the mainstream building formwork materials at present. This paper analyzes and summarizes the performance of the new formwork of GMT, compares it with the traditional mainstream template, studies the problems existing in the development of GMT formwork and conducts corresponding analysis. It is pointed out that through continuous improvement of GMT formwork construction technology and the entire formwork system, its technical advantages can be fully utilized and maintained, in order to provide reference for the further development of GMT new building formwork.
Analysis on Lubrication Performance of Piston Ring-Cylinder Liner based on Numerical Simulation
Authors: Engao Peng , Zhihong Xiong , Zhenkun Luo , Yongyang Zhang , Zhansong Yin 
Published: June 2023

Abstract
This paper mainly studies the tribological performance of friction pairs and poor lubrication during piston movement. Based on the average Reynolds equation and comprehensively considering the variable viscosity and variable density characteristics of lubricating oil, a transient hydrodynamic lubrication model of the piston ring-cylinder liner friction pair is established. By solving the established lubrication model, the lubricating oil film thickness value, friction value and other parameters that can characterize the lubrication performance of the friction pair throughout the cycle are obtained, whilst revealing the surface roughness, lubricating oil viscosity and piston ring barrel surface height. And the influence mechanism of the friction performance of the friction pair is presented on the basis of the previous analysis. The research shows that improving the surface roughness of the piston ring will help to improve the lubrication, increasing the viscosity of lubricating oil will help to improve the lubricating performance of friction pairs and reduce the peak friction at the top dead centre of piston rings and improving the surface texture of the piston rings can reduce the oil film thickness and reduce the friction caused by fluid shear effect in the high-speed region.
Prediction Method for Leakage Probability of Typical Fluid Machinery & Pipeline based on Cloud Model
Authors: Zhao Yuanfei , Ma Jiajun , Chen Guohua , Yang Peng , Sheng Hao 
Published: June 2023

Abstract
Many dangerous chemicals are involved in the operation of fluid machinery, and the leakage of hazardous chemicals could trigger serious accidents, so the leakage probability prediction of fluid machinery and the effective maintenance before the equipment breakdowns are the critical factors in preventing accidents. A leakage probability prediction method based on a cloud model is proposed to aim at the standard fluid machinery with a frequent leakage probability in a chemical industry park. Due to the basic leakage probability of fluid machinery at home and abroad, the index system of leakage influencing factors is constructed and its influence degree is analysed. The modified typical fluid machinery leakage probability is then obtained using the cloud model to eliminate the subjectivity of quantitative results. The proposed method is utilized to estimate the leakage probability of Ethylene pipeline leakage of a pump in 1300# cracking gas compression area. The outcome 4.27 × 10−5 proves that this method can effectively solve the deviation problem in the leakage prediction process of domestic fluid machinery and guide the process of leakage probability prediction or accident prevention.
Design of Intelligent Greenhouse Control System based on MCGS and PLC
Authors: Huang Manying 
Published: June 2023

Abstract
In modern agriculture, intelligent greenhouse systems have become a critical component for optimizing crop growth and maximizing yield. By integrating information technology with the isolation and climate control capabilities of greenhouses, these systems not only enable the automation and intelligence of agricultural production, but also play a crucial role in regulating seasons, protecting crops from extreme weather events, and ensuring optimal growing conditions. In this paper, a comprehensive control system for an intelligent greenhouse was designed, with Mitsubishi PLC and MCGS as the core components, based on the specific growth requirements of plants. The system consists of two main parts: hardware and software. The researchers constructed an advanced control system using a range of sensors and control devices, utilizing a typical PID control algorithm to maintain ideal growing conditions for plants. This research highlights the importance of intelligent greenhouse systems in modern agriculture and presents a promising solution for optimizing crop growth and yield through advanced automation and control.
Research on performance of heat sink with no dielectric copper-aluminum connection
Authors: jinlong Mo , Yiwei Zhu , Yue Zhang 
Published: June 2023

Abstract
Air-cooled copper-aluminum composite heat sink is generally used for heat dissipation of electronic components. If the traditional copper-aluminum connection mode is used, such as welding, copper plugging and locking, bad phenomena such as pores, impurities and interface thermal resistance easily occur on the bonding surface, resulting in decreased heat conduction efficiency, heat dissipation efficiency and lower strength of the bonding surface. Therefore, we introduce a mortise-tenon connected heat sink, and optimize the honeycomb structure of the heat dissipation fin to design a new type of air cooled heat sink with no dielectric copper-aluminum connection. CFD simulation software is used to study the heat dissipation performance of the traditional and new heat sink, and the obtained data are comparatively analyzed to verify feasibility of the process. The result shows that the mass of the honeycomb heat sink is reduced by 37.1%, the surface area is increased by 47.8%, and the heat dissipation performance of the new copper-aluminum heat sink is 60% higher than that of pure copper integrated heat sink. It is concluded that heat sink with mortise-tenon connection has superior performance than traditional integrated air cooled heat sink, and honeycomb heat sink has superior performance than solid plate heat sink.
Laser-based Process Towards Advanced Manufacturing of Metal Alloys
Authors: Gong Na , Liu Hongfei 
Published: June 2023

Abstract
Investigations on application of laser for manufacturing and remanufacturing have been extensively progressed since its advent in 1960. The rapid development of laser technologies in the past half-century has made many laser-based direct-energy processes possible and, nowadays, most of such laser-processing techniques are about entering industrial applications. An application of laser-cladding (LC) for remanufacturing turbine blades can save the cost by over 75%. Laser treatment, on the other hand, making use of direct laser-matter interactions, has been recognized as a green surface-cleaning technique for metal alloys, which may also introduce surface integrity enhancement for additively manufactured alloys. Here, we present and discuss recent progress in laser-based process through a few typical cases that have been recently developed in our group towards advanced remanufacturing of metallic alloys, typically including LC, laser treatment, and laser-shock peening.
Rotor Voltage Compensation Control Strategy of Double-fed Wind Turbine Considering Stator Flux Transient Characteristics
Authors: Liu Yang , Fu Yuan 
Published: June 2023

Abstract
The stability of the grid voltage is directly related to the stability of the DFIG operation, which is related to the topology of the DFIGURE After the grid failure, the rotor current will be too large if the stability threshold is exceeded continuously. The current low voltage control uses additional hardware measures to make the wind turbines survive under the impact of grid voltage drop. Because additional hardware measures will increase the investment of the system, this paper proposes an additional control of the rotor-side converter of the double-fed wind turbine considering the stator flux linkage. The output voltage of the converter is increased through the compensation of additional control to suppress the excessive rotor current. Firstly, the dynamic process of the double-fed wind turbine can be obtained from the relationship between stator flux linkage and rotor voltage of the circuit before and after the fault, and the rotor equivalent circuit is obtained. Combined with the actual control of the rotor converter, the rotor current composition in different coordinate systems is obtained. Compared with the two current components, the equivalent relationship can be obtained to get the transient voltage to be compensated. The rotor converter increases the corresponding output voltage to prevent excessive rotor currents from affecting wind power systems. The simulation proves that the proposed additional control can limit the transient current of the fan rotor in a safe range when the grid voltage drops, which enhances the anti-interference ability of the double-fed wind turbine.
Solar interfacial regeneration performance of different solutions for liquid desiccant cooling system
Authors: Si Laisheng , Li Xiuwei 
Published: June 2023

Abstract
A liquid desiccant cooling system (LDCS) is a promising energy-saving air-conditioning system with the advantages of being driven by low-grade heat and excellent humidity control ability. However, the problems of high energy consumption and low energy utilization efficiency of its regenerator limit its further development. To improve, a novel solar interfacial regeneration (SIR) method is proposed. The method can convert solar energy into heat and locate the heat at the evaporation interface so that the regenerator has high energy utilization efficiency. Experimental studies were carried out on different liquid desiccants. The results show that the thermal regeneration efficiency of this method is 2.6 to 2.9 times that of the conventional thermal regeneration method. LiBr solution has the best regeneration performance, but MgCl2 and CaCl2 are cheaper. Considering energy utilization efficiency and economic cost, the mixed desiccant may be a better choice. These advances could make SIR-based LDCS a potential contender for future air-conditioning systems.
Integrated Energy System Design of Low-carbon City Based on Multi-energy Complementary of Cooling Heating and Power
Authors: Wang Peng , Guan Jun 
Published: June 2023

Abstract
The model of urban integrated energy dispatching system is a mathematical model used to describe the distribution of energy flow in the system, which has the characteristics of high accuracy, strong nonlinearity, and non-convexity. However, in the optimal power flow and other optimization problems, the traditional numerical solution algorithm cannot be directly applied. The strong nonlinearity and non-convexity of the system power flow model bring great difficulties to the solution of the optimization problem. Based on the input and output theory of cooling, heating, and power complementary energy, this paper studies the coupling energy relationship and power flow of various energy devices in an urban multi-source microgrid. It establishes the reliability index of the system energy supply, starting from the integrated energy system structure of low-carbon cities. A bi-level optimization model considering the constraints of energy supply reliability is constructed, which provides a basis for the subsequent establishment of the optimal allocation model.
Maximum power tracking of wave power generation system based on improved particle swarm optimization
Authors: Lan Ying , Gao Guiyu 
Published: June 2023

Abstract
In a wave power generation system, traditional particle swarm optimization (PSO) is prone to premature convergence and local optimal solution when it is used to control the maximum power tracking. Therefore, an improved PSO is proposed, and simulated annealing adaptive particle swarm optimization (SAAPSO) is constructed. The algorithm controls the inertia weight coefficient factor by hyperbolic tangent function and makes the nonlinear adaptive change. Using a linear change strategy to control social learning factors and self-learning factors, a simulated annealing operation is introduced, and a temperature is set according to the initial state of the population. The population is guided to compare the fitness value with the random number in the Metropolis criterion and temperature, and whether a new solution is generated is judged, to improve the problem that the algorithm falls into a locally optimal solution. The simulation results show that the algorithm can effectively prevent the wave power generation system from falling into the local maximum power point, and the maximum wave energy capture ability is significantly improved.
A Multi-objective Control Strategy of the Energy Storage System in Distribution Networks with a High Proportion of Renewable Energy
Authors: Meng Guangze , Sun Yuanyuan , Yu Tao , Wang Chaofan , Sun Kaiqi , An Peng 
Published: June 2023

Abstract
With the development of battery technology and power electronic technology, battery-based energy storage has been widely used in Peak Shaving and Valley Filling frequency and voltage regulation for the power system with a high proportion of renewable energy integration. However, the existing control strategies of the energy storage system (ESS) mostly take peak shaving and valley filling frequency and voltage regulation as a single control objective, causing the rest capacity of the energy storage in the single control working period to be wasted, which significantly reduces the utilization rate and economic benefits of energy storage. How to improve the utilization rate and economic benefits of the ESS while enhancing the support performance of ESS has not received much attention. This paper proposes a multi-objective control strategy of ESS to maximize energy storage’s benefit and ensure the distribution network’s safe and stable operation. First of all, this paper combines the auxiliary compensation benefits of the price system of distributed energy storage power stations and proposes a comprehensive index that comprehensively considers the economy of the ESS and the stable operation of the distribution network to support the evaluation needs of multi-objective control of energy storage. On this basis, this paper predetermines the multi-layer judgment logic for ESS operation control under different operating conditions, divides the ESS into different operating conditions according to the control objectives, and proposes a multi-objective control strategy based on variable droop coefficients. It effectively utilizes the idle capacity of the ESS and achieves an optimized control of energy storage that takes into account both technology and economy. The simulation verification based on the energy storage model built in Matlab/Simulink is conducted to validate the effectiveness of the proposed ESS multi-objective control strategy.
Single phase to ground arcing fault identification based on wavelet packet energy
Authors: Yang Jiakui , Wang Tao , Jin Zonghao 
Published: June 2023

Abstract
With the increasing proportion of cable lines in the distribution network, the capacitance current in the system increases, which leads to the single phase to ground arcing fault in the distribution network. However, at present, there is less research on single phase to ground arcing fault, and the type of grounding fault is always assumed to be metallic or resistive grounding, and the arcing ground fault is not identified in time, which leads to further expansion of the fault. In this paper, the transient simulation analysis of a single phase to the ground is carried out, and a new method to distinguish arcing ground fault from metal grounding fault using wavelet packet energy is proposed, which solves the problem of fault type identification. Through a large number of simulation data analyses and practical verification, it is shown that the method is not affected by the time of fault occurrence and neutral grounding mode, and has a strong anti-interference ability and high reliability.
Effect of Fuel Utilization on Tri-reforming-SOFC Systems with Different Heat Management Strategies
Authors: Wang Xuan , Hou Ruijun 
Published: June 2023

Abstract
Four tri-reforming-SOFC system configurations are built with different off-gas recirculation methods (anode off-gas recirculation and burner off-gas recirculation) and different reformers (with heat exchange and with oxygen injections) to improve heat management. The systems are modeled to explore the effects of fuel utilization. It is found that the recirculation type mainly affects the maximum temperature in the reformer while the reforming type mainly affects the methane conversion. The max temperature gradient in the stack increases with fuel utilization in configurations C and D, therefore high fuel utilization should be avoided in these two configurations. The system electric efficiencies are enhanced compared with the stack electric efficiency. AOGR and reformer with heat exchange are preferred to enhance the system’s electric efficiency, and configuration A exhibits the highest system electric efficiency.
Causes and Prevention of Photovoltaic Module Hot Spot Effect
Authors: Zhang Xiuqi , Yuan Shuai , Wang Qi 
Published: June 2023

Abstract
The photovoltaic module is the basic link in the photovoltaic power generation system, which has an important impact on the economic operation of photovoltaic power plants. Hot spot effects account for a large proportion of photovoltaic module failures, so it is of engineering significance to study them and put forward suggestions for fault prevention. Firstly, this paper briefly introduces the composition of photovoltaic power generation system and the structure of photovoltaic modules then analyzes the working process and typical models of photovoltaic modules as well as the causes of the hot spot effects of photovoltaic modules. Finally, it puts forward some measures to prevent faults to improve the operational reliability of photovoltaic modules.
The Daqing Oilfield Sazhong Development Zone with the Gas-oil Ratio
Authors: Wan Jianrong , He Jingang , Chen Qinan 
Published: June 2023

Abstract
In the late stage of super high water cut development in the Sazhong Development Zone, the oilfield development rules have changed, showing a significant increase in the production gas-oil ratio. To study the factors and laws of production gas-oil ratio change, laboratory research on oil/gas/water high-pressures physical properties, a field test for single layer development, and theoretical calculation of modified oil-gas ratio were carried out. The results show that partially dissolved gas can be obtained from saturated gas crude oil by injecting water or polymer solution. In the ultra-high water cut period, especially when the water cut rises to 95%, the production gas-oil ratio will rise sharply due to the influence of gas production in water. At the same time, the ground saturation pressure difference is also an important factor affecting the production oil-gas ratio and recovery factor. Therefore, in the process of analyzing the production gas-oil ratio, it is necessary to study the influence of the ground saturation pressure difference and the dissolved gas-water ratio, especially in the ultra-high water cut stage and chemical flooding stage.
The dynamic wireless charging system of suspension inspection robot
Authors: Deng Siming , Liu Feifei , Zhong Xiangxing 
Published: June 2023

Abstract
Intelligent inspection robots can monitor the behavior of poultry in real-time according to the production management needs of standardized poultry breeding, and gradually replace the method of artificial inspection to become a new method for farm detection. The good performance of its power system is the basis for ensuring the extension of the inspection cycle. In a humid environment, the traditional power supply method will cause the wear, leakage, and heating of the wires, which causes the safety of the farm to be guaranteed. Therefore, this article designed a suspension inspection robot system with dynamic wireless charging functions. It can run steadily at high temperatures, high humidity, and high dust environment, and use radio energy transmission technology based on induction coupling principles to move the inspection robot to dynamic wireless charging. The coupling quality is used to improve the transmission efficiency of the system, and it provides a reference for the design of the wireless charging coupling device of the inspection robot in the future.
The Power Quality Monitoring Method of Intelligent Power Distribution Cabinet
Authors: Gao Qiang , Yuan Feng , Li Bing , Jiang Zhunan , Ye Peng , Dai Jicheng , Pan Fenghou , Li Zailin , Pan Jiayu 
Published: June 2023

Abstract
To improve the authenticity of reconstructed signals in power quality disturbance detection, an improved wavelet denoising method based on a coquantum-particle swarm is proposed to solve the problem that parameters in the traditional wavelet function are not easy to obtain, and a power quality disturbance detection framework is constructed. Simulation analysis verifies that the proposed method can effectively improve the disturbance detection performance compared with the traditional method. The reconstructed signal is closer to the original signal, which verifies the effectiveness of the proposed method.
A Non-invasive Load Identification Method Based on V-I Trajectory Mixing Feature
Authors: Song Yang , Zhang Ruoyuan 
Published: June 2023

Abstract
Non-invasive load decomposition technology is an important part of the smart grid technology system. Aiming at the problem that traditional methods cannot accurately identify household loads containing high-order harmonics, a load identification method based on V-I trajectory matrix-power and high-order harmonics multi-feature fusion was proposed. First, the V-I trajectories, power characteristics, and harmonic characteristics of 11 typical household loads are analyzed, and a hybrid feature matrix construction method based on pixel image transformation is proposed. Through binary coding transformation, the power and high-order harmonic characteristics of the load are fused with the basic V-I pixel trajectory, enriching the characteristic information of the sample. Second, a recognition algorithm based on Gaussian Mixture Model (GMM) and Support Vector Machine (SVM) is established, and the probability distribution of the two algorithms is fused to generate the final recognition result. Finally, the Plug Level Appliance Identification Dataset (PLAID) was used to verify the proposed method, and the accurate identification rate of various household loads was over 93%. Experimental results show that the proposed method can accurately identify household load, including high harmonic load.
Typical Failure Causes of Photovoltaic Module
Authors: Zhang Xiuqi , Wang Liqiang , Wang Qi 
Published: June 2023

Abstract
The application of new energy such as solar energy is a measure to promote the green and low-carbon transformation of energy, and photovoltaic power generation has been widely developed and utilized. The photovoltaic module is an important part of photovoltaic power generation, which is crucial to the economy and reliability of power generation. This paper introduces the current situation of photovoltaic power generation, explains the structure and power generation principle of photovoltaic modules, counts the typical failures of photovoltaic modules, and analyzes the causes of the failures, which can provide a reference for the operation and maintenance of photovoltaic power stations.