bluuebunny/crossref_metadata_2025_split huggingface dataset:
Design of lithium-ion battery management system for mine electric vehicle
Authors: Huang Kaifeng , Wang Yong , Feng Juqiang 
Published: March 2021

Abstract
With the continuous improvement on mine equipment automation level and the progress of battery manufacturing technology, Lithium-ion batteries are widely used in mining transportation, monitoring communication and emergency facilities. This paper designs a kind of lithium-ion battery management system for explosion-proof mining electric vehicle according to GB3836-20210 series standard. And the management system takes STM32F103 as the main controller and LTC6811 as the core, using passive equalization strategy to realize battery voltage equalization. The test results show that the maximum error of 100 batteries after equalization is 0.32v, the average error is 0.03v and the maximum error between the monitoring value and the measured value is 0.3v, the average error is 0.0019v, which prove that the management system has high accuracy and effectiveness.
Research on Marine Photovoltaic Grid-connected System Based on Super Capacitor
Authors: Wang Shihao 
Published: March 2021

Abstract
Ships undertake more than 90% of the logistics and transportation of world trade, but shipping also brings about a large amount of pollutant emissions. According to statistics, 30% and 5% of global pollutants NOx and SOx come from ships. With the continuous introduction of new regulations and policies, green and low-carbon has become the current development trend of ships. The application of new energy power generation through inverter control technology to connect to the ship’s power grid is one of the technical approaches, of which photovoltaic power generation technology is representative. Through the review of relevant literature and books, learn the working principles and characteristics of each component of the photovoltaic power generation system, and complete the selection and design of the main equipment of the system according to the needs of ro-ro ships.
Grid-connected microgrid operation strategy and aggregate load characteristics under differentiated power prices
Authors: Piao Zheyong , Li Haiyan , Bin Geng , Jiang Dongxiao , Yang Weilong , Wu Gang , zhang Wenbao 
Published: March 2021

Abstract
In order to master the aggregated load characteristics of the grid-connected microgrid to serve the planning and operation of the distribution network, the operation strategies and aggregated load characteristics of the grid-connected microgrid under the differential power price are studied. This paper investigates the market mechanism of domestic and foreign microgrids and establishes power configuration modes for different types of microgrids. Under the current differentiated distributed power tariff, considering various power tariffs and generation costs, the output strategies and state change paths for different power scenarios are proposed. Based on this, a solution method based on adaptive immune particle swarm algorithm is presented. Through a large number of simulations, the aggregated load characteristics of the grid-connected microgrid are extracted, which provides a reference for the planning, operation and price mechanism of the microgrid and distribution network.
Study on the toxicity of solar cells
Authors: Qi Hu 
Published: March 2021

Abstract
A solar cell is a device that uses the photovoltaic effect to convert solar energy directly into electric energy. It is used in aviation, aerospace, transportation, communication, forestry and other fields. With the increase of solar cell materials in the environment, the potential impact on the environment is also increased. It has attracted wide attention. Solar cell materials mainly include multi-metal compound thin films such as cadmium telluride (CdTe), cadmium selenide (CdSe) and cadmium sulfide(CDS). Moreover, it includes nanocrystalline solar cell materials such as TiO2 and ZnO and Molecular solar cell materials. The toxicity research status of solar cell materials was reviewed from three aspects: materials and organic solar cell materials. The development of this field is prospected.
Analysis on Coupling Structure of Dynamic Wireless Charging in Electric Vehicle
Authors: Lin Zhiqi , Liu Jiaxin 
Published: March 2021

Abstract
The existing electric vehicles use charging piles for charging, which is inefficient and inconvenient, so wireless charging technology has become the research focus. Compared with the traditional charging mode, electric vehicle wireless charging does not need wiring, more convenient, safe and efficient. This paper presents a three-coil compensation optimization scheme. Based on the research of square-square coupling coil, while determining the optimal winding mode of the coil, the magnetic cores of transmitting and receiving coils were selected to analyze the coupling situation according to the magnetic field distribution cloud map, and use the Simplorer Maxwell and ANSYS software simulation, analysis, contrast system coupling way, the purpose is to meet the needs of dynamic charging, solve the problem of the current electric vehicle charging limited.
Construction of power data products based on STP theory
Authors: Bing Cai , Peng Chen 
Published: March 2021

Abstract
Under the background of digital revolution, the level of power grid intelligence and automation has been improved, and a large number of data of various types have been gathered. Through the analysis of multi-source data of power grid, the new profit growth point of power grid enterprises can be mined. In this paper, the “STP theory” is introduced into the power data commodity market. Through the in-depth analysis of the three elements of power data market segmentation, target market selection and market positioning, the power data product types facing different data trading objects, such as government, power grid itself, third-party enterprises and ordinary users, are constructed. This study will provide a basis for grid companies to explore new data business model.
Research on Temperature Distribution of Single Tank Using Molten Salt for Thermal Storage
Authors: Zhang Huiting , Cai Liang , Zhang Xiao , Li Guanghua 
Published: March 2021

Abstract
The temperature distribution of the storage tank with molten salt as the heat storage medium during the discharge process is introduced in the article. In order to analyze the temperature distribution of molten salt in a storage tank and improve the heat exchange effect, the exothermic process of a single thermal storage tank equipped with an immersion heat exchanger was studied. Fluent software was used in the analysis to study the influence of different heat transfer areas, structures and layouts on temperature distribution by means of numerical simulation. The results show that if the heat exchange area is increased, the temperature uniformity and heat transfer speed in the tank will strengthen. By reducing the tube diameter of heat exchanger, the temperature difference in the axial direction can be reduced. When the heat exchanger is arranged above, the temperature stratification in the tank will be improved, and the heat exchange will be more sufficient.
Performance monitoring and verification of a groundwater source heat pump heating system in a greenhouse
Authors: Zhou Meili , Cai Fei , Uenishi Masahisa , Sekine Yasumasa 
Published: March 2021

Abstract
The traditional heating of greenhouse is mainly by burning coal and fuel; this has some disadvantages such as low energy efficiency and high carbon dioxide emissions. As a renewable energy, groundwater source heat pump (GWSHP) has been widely concerned, and its heating application in greenhouse has a significant impact on energy saving and emission reduction. This paper introduces the GWSHP, and establishes a heating system combined with an existing fuel oil heater (FOH) in a horticultural greenhouse in Gunma Prefecture, Japan. The GWSHP bore most of the heat load, and the FOH was only used as an auxiliary heat source at low temperature. A heating cycle operation monitoring was carried out from November to May of the following year, and the fuel oil saving rate and energy saving rate of the system were calculated to be 74.4% and 22.3% respectively. The results show that the combined heating of GWSHP and FOH is energy-saving and environmentally friendly, and can be widely used in areas rich in groundwater.
Study on oscillatory heat transfer performance of single loop pulsating heat pipe
Authors: Zhi Zhuang , Lei Su , Zheng Dingming 
Published: March 2021

Abstract
The heat transfer performance of single loop pulsating heat pipe (PHP) under different filling rates (FR) was studied experimentally. The temperature oscillation characteristics of the outer wall of the tube, the start-up characteristics under different heating power and the heat transfer characteristics between the tube wall and the working fluid are analyzed. The results show that the evaporation section has the uniform temperature characteristic, the uniform temperature characteristic of the condensation section is related to FR and heating power, there is an obvious temperature change in the adiabatic section. At 50% FR, the working fluid is easier to start. At high power, the thermal resistance of phase change heat transfer between the tube wall and the working fluid has an obvious influence on the heat transfer performance, which cannot be ignored.
A numerical analysis on molten droplet hydrodynamics in sodium pool
Authors: Yassin Nassir , Zhang Zhi-Gang , Wu Qi , Wang Fang , Yang Zhi , Rabih Ahmed , Ali Mohsen M. M. 
Published: March 2021

Abstract
The risk and consequences of vapor explosion during severe accidents are among the most critical safety problems to be considered in next-generation sodium-cooled fast reactors. The melt of the core material (corium) may be produced in the event of inadequate core cooling and/or during Loss of Coolant Accident (LOCA) leading to Core Disruptive Accident (CDA). Corium displacement can then lead to powerful fuel-coolant interactions (FCIs). One of the consequences of this molten corium-coolant interaction is that vapor formation and hence explosion may occur. Due to the problem complexity, only hydrodynamic effects of the multiphase system of a single-droplet vapor explosion phenomenon, without heat transfer, is considered. The present study focuses on simulating a molten droplet pre-conditioning (deformation before breakup) through the early stages of the molten fuel coolant interaction. In order to efficiently capture the melt-sodium interfaces and predict droplet behavior with appropriate mass conservation, calculations were conducted using the CFD code of STAR CCM+ for several melt coolant two-phase system configurations. The results demonstrate that the melt properties and velocity are the dominant factors on the melt droplet pre-conditioning behavior.
Studies of Interactions between Water Droplet and Soap Film
Authors: Liang Yuxi , Tian Shihao , Burleigh Brain 
Published: March 2021

Abstract
In this paper, it explored the interactions between water droplet and soap film. Three types of interactions: merging (droplet and film merges after interaction), bouncing (droplet bounces off the film) and passing (droplet pass through the film) are mainly examined, and how the mass and impact velocity of water droplet will affect the film deformation are studied. After understanding the importance of surface tension and Weber number, both simulation and experiment are used to verify the theory and to interpret the phenomena of droplet-film interactions.
Controllable interfacial synthesis of three-dimensional hierarchical graphdiyne multilayer films
Authors: Hao Wenjun , Lu Shan , Chen Zongping 
Published: March 2021

Abstract
Graphdiyne (GDY) is a new type of carbon allotrope. Liquid/liquid interface growth of GDY can be realized in a controllable manner. Herein, three-dimensional hierarchical multilayer GDY films were prepared by polymerization of hexaethynylbenzene at liquid/liquid interface with various thickness. The present approach allows layer-by-layer growth of hierarchical GDY films. The obtained robust GDY multiple layers can be used as support to grow composites which are efficient catalysts for electrochemical reactions.
Numerical study on thermohydraulic behavior in evaporator section of wicked copper-water heat pipe at low superheat
Authors: Zhu Xidong , Dong Yu , Cheng Jianjie , Yao Yao , Bao Jun , Wang Yu , Liu Jinxiang 
Published: March 2021

Abstract
Previous numerical studies have focused on the temperature profiles, flow pattern, heat transfer characteristics and transient behavior of wickless heat pipes. With the increase of heat dissipated power, the heat transfer capacity of the wickless heat pipe is no longer satisfied. Therefore, the research on flow and heat transfer of wicked heat pipe is more meaningful. In this paper, the numerical model of the heat pipe evaporator with a simplified rectangular wick structure was simulated. The present work to be aimed at the numerical model investigating on possible heat transfer performance. The effects of wick thickness, wick porosity, contact angle, single and double layer on heat transfer and flow characteristics were studied. For the wick thickness of 0.25, 0.5 and 1 mm, the 0.5 mm wick exhibits good versatility in heat transfer and flow. The porosity of 0.3 exhibits better heat transfer than that of 0.5, 0.7, 0.9. The value of the Nusselt number of the porosity of 0.3 reaches 142. For the contact Angle of 0, 30, 60, 90 degrees, 30 degrees has better heat transfer performance. Compared with single-layer wick, the double-layer wick can better promote thermal-hydraulic behavior.
Determination of Limited Aritolonchic Acid A Content in Bazheng Granules by Capillary Electrophoresis
Authors: Liu Fang , Liu Haixing , Han Likun 
Published: March 2021

Abstract
The paper investigated the determination of limited aritolonchic acid A content in Bazheng granules by capillary electrophoresis. The buffer was 30 mmol/L borax solution containing 3% ethanol. The voltage was 16 kV and UV detection wavelength was 250 nm. The aritolonchic acid A content in Bazheng granules was 0.267 mg/g(RSD=4.39%)(n=6). The recovery of aritolonchic acid A in Bazheng granules sample was in the range of 83.8%-121.2% (n=5). The average recovery was 103%(n=5). The new method is fit for the determination of limited aritolonchic acid A content in Bazheng granules.
Research on Rice Disease Identification Model Based on Migration Learning in VGG Network
Authors: Qiu Jing , Lu Xiaolei , Wang Xingxing , Hu Xianqi 
Published: March 2021

Abstract
[Purpose]Aiming at the problems of slow speed, over-fitting and unsatisfactory recognition of traditional recognition models, VGG16 convolutional neural network is applied to rice disease identification, and the knowledge learned by VGG16 model is transferred to rice disease identification by means of migration learning method to construct the recognition model. [Method] The classifier uses linear discriminant analysis by setting different learning rates to fine tune the network parameters. Using image processing technology to expand the disease image set, according to the disease characteristics, the sample is divided into 10 types of diseases such as rice blast, sheath blight, rice smut and bacterial blight, and 90% of each sample is randomly selected as the training set. 10% of the samples were used as test sets, and the samples were trained using the 10-fold cross-validation method. During the simulation training, the other two methods were compared and analyzed. [Result] The experimental results show that the accuracy, balance F score and prediction speed of the disease recognition model using parameter trimming and linear discriminant classifier are higher than the other two recognition models. The average correct rate is 97.19%, the equilibrium F score is 96.75%, and the prediction speed is 175 samples per second; from the performance analysis of the model, the accuracy rate did not show large fluctuations. After 100 trainings, the training and prediction accuracy rate reached 96%, the loss rate showed a gradient downward trend, and the change was relatively stable; The 10 types of disease samples were predicted, and the average accuracy was 97.08%, the recovery rate was 96.22%, and the F1-score value was 96.75%. [Conclusion] The method has the characteristics of high accuracy, strong generalization ability, good robustness and small loss rate. This provides reference and reference for plant disease identification research.
Plasma resonance ultraviolet absorption spectroscopy of gold nanorods
Authors: Li Huiqin , Yan Shaotian , Wu Lihua , Dou Shumei , Ren Xinyue 
Published: March 2021

Abstract
Au nanorods were prepared by seed growth method. Based on the local surface plasmon resonance (SPR) absorption spectra of gold nanoparticles, the formation and growth kinetics of gold nanorods were observed and studied in real time. The effects of temperature and reaction time on the growth process of gold nanorods were emphatically investigated. It was found that the shift of SPR UV-vis absorption peak was closely related to the experimental conditions The influence factors and mechanism of SPR absorption peak shift are discussed. It is concluded that the moving direction of SPR peak is the result of the competition of particle size and charge transfer.
Predicting of Ship Magnetic Field Underwater Based on Grey Theory Model
Authors: Wang Pengzhong , Gao Junji 
Published: March 2021

Abstract
Based on the grey theory DGM (1,1) model, the ship magnetic field at different depths is predicted. COMSOL is used to simulate the ship’s magnetic field, and the simulated magnetic field value is applied to the established model. The gray model is used to predict the ship’s underwater magnetic field at different depths, which verifies the effectiveness of the gray prediction model.
Inland water green smart power pusher
Authors: Xie Yuhong 
Published: March 2021

Abstract
At present, the auxiliary ships for inland waterway operations mainly use diesel as fuel, and a large amount of polluting gas is emitted in the inland waterway, which seriously affects the air quality of cities along the waterway. In order to solve the impact of the current inland waterway auxiliary ships on the environment, this work has designed a new energy intelligent pusher for inland rivers and lakes. The pusher uses electric energy as an energy source. This work is mainly composed of power supply system, container battery rapid replacement system, ship slow contact system, ship positioning and anti-collision system. Under the joint cooperation of all systems, the intelligent jacking of inland rivers and lakes and the rapid battery replacement are completed, and finally it is green, Intelligent and efficient operation effect.
Mechanism of Cd Content Migration in Sea and Land
Authors: Yang Dongfang , Li Haixia , Zhang Longlei , Wang Qi , Zhu Hong 
Published: March 2021

Abstract
based on the survey data of Cd content in Jiaozhou Bay in May, August and October of 1992, the paper studies the process of ocean current transport and the source of Cd content in Jiaozhou Bay. The spatial variation of Cd content from source transport in May, August and October is shown according to Dongfang Yang’s matter content migration rule, which is revealed with the model block diagram. The location, size, type and time scale of source of Cd content transport are also determined. There were three main sources of Cd content in Jiaozhou Bay, from run-off transport, river transport and main sea current transport. Rivers carried Cd content in excess of 0.96μg/L over the year, slightly polluting land and rivers. In addition, Cd content in run-off and main sea current was greater than 1.10μg/L, which means the whole land and ocean were slightly polluted by Cd content. Among rivers flowing into Jiaozhou Bay, there are four major rivers which carried Cd content into the waters of Jiaozhou Bay: Haibo River, Licun River, Loushan River and Dagu River. According to Cd content in the river, from high to low was: Dagu River > Licun River > Loushan River > Haibo River. The Cd content transport time scale of Licun River, Loushan River and Dagu River was the same, while that of Haibo River was shorter. The mechanism of land transport and sea transport is put forward by authors, and the mechanism of alternating migration of Cd content between land and sea is revealed. In May, the land began transporting large quantities of Cd into the sea; from May to August, the land transported Cd content to the sea for three months; In August, the transport from land to sea ended, and the main sea current began to transport Cd content in large quantities; from August to October, the main sea current transported Cd content to the ocean for two months; In October, transport of the main sea current ended, and rivers began to carry Cd to the ocean again. The Cd content transported by northern run-off in May was 1.10μg/L and the Cd content transported by main sea current in August was 1.11μg/L, which further confirmed the authors’ theory of matter uniformity. It can be seen that the Cd content transported by land and by sea was the same. Thus land and sea had the consistency of matter content.
Research on the multifunctional oil spill recovery rescue ship
Authors: Zhang Boxu 
Published: March 2021

Abstract
In order to deal with sudden oil spills at sea in a timely and effective manner, the ship mainly uses bubble-type anti-fouling curtains to isolate the pollution, combined with the oil spill recovery device of the bionic jellyfish for oil spill recovery. Traditional oil spill accident handling requires coordination and arrangement of various functional ships to operate separately. The integrated scheme designed in this paper integrates the improved pipe laying device and oil spill recovery device into a unified whole. As the development of marine oil and gas continues to heat up, and the requirements for marine environmental protection in the world continue to increase, there are also higher and higher requirements for oil spill recovery vessels and oil booms. Therefore, a rescue ship that can respond quickly in the event of an oil spill has great prospects.
Natural Degradation Simulation and Phytoremediation of Oil-Contaminated Soil
Authors: Dong Yijie , Zheng Zhiyang , liao Lei , Yan Jiaqing , Deng Shaoqiao 
Published: March 2021

Abstract
In order to remediate the soils contaminated by oil and solve the disruption of ecological balance caused thereby, appropriate measures shall be taken to improve the oil degradation effect of the soil. This paper is based on study of current available soil remediation techniques of the oil-contaminated soil, focuses on the simulation of microbial degradation and phytoremediation techniques so as to conclude the corresponding degradation schemes with the optimal type of plants, which is aimed at providing the theoretical guidance for the actual remediation effect of oil contaminated soil.
Experimental study on treatment of malachite green wastewater by single iron heterogeneous fenton system
Authors: Li Yafeng , Hu Huixue , Wang Siqi 
Published: March 2021

Abstract
The effect and influencing factors of single-iron heterogeneous Fenton system in the treatment of malachite green wastewater were experimentally studied. The test results show that: the initial pH is 3, the dosage of Fe/AC heterogeneous catalyst is 2g/L and after the reaction is 120min, the wastewater color removal rate can reach 92.01%, and COD removal rate can reach 78.95%.