bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Strategy of Integrated Demand Response Considering the Interaction Between Superior Power Grids and Factories
Authors: Zhang Yuhong , Luo Yi , Deng Yingying , Wang Xiao , Lian Libo 
Published: December 2019

Abstract
With the development of the energy internet, the integrated demand response (IDR) has become a key technology for the establishment of a benign interaction between industrial parks and factories. As a result, a comprehensive demand response strategy is proposed in this paper. Firstly, taking minimization of cost, optimal scheduling model for factory is constructed, as the basis for interaction. Then, the maximum adjustable ability of the user is excavated according to the peak regulation of the park based on the IDR model. The results show that the energy utilization efficiency of the users is improved by the synergistic complementarity, and the industrial park can provide the auxiliary services for the power grid.
Application of Data Analysis and Interpolation Method of Safety Monitoring System in a Water Conservancy Project
Authors: Zhen Shufeng , Wang Jianguo , Wang Qi 
Published: December 2019

Abstract
Dam safety monitoring data analysis and project operation management should keep pace with the development of monitoring technology. Taking the application of DSIMS4.0 system developed by Nan Jing Nan Rui Group Co. ltd. in Xinjiang water conservancy project as an example, this paper highly summarizes the scientific support of the system for dam operation performance analysis and effective management of dam.
Mesoscale simulation of pool boiling on a cylinder heater under controlled wall temperature
Authors: Wang Haoyuan , Lou Qin , Li Ling 
Published: December 2019

Abstract
In this study, a phase–change LB model was adopted to simulate the pool boiling on a cylinder. The simulation results showed that the phase-change phenomenon occurred firstly at the top of the cylinder and produced the bubble at a low heating temperature on hydrophilic surface. With the increase of heating temperature, new nucleation sites appeared on both sides of the cylinder. And under the action of buoyancy, the bubbles on both sides risen to the top and merged and then departed. When the heating temperature reached a certain level, a bubble appeared at the bottom of the cylinder and grown steadily. Eventually, the bottom bubble would wrap the cylinder completely so the cylinder entered the film boiling. For hydrophilic surface, the temperature and heat flux over the cylinder surface would vary with the formation of bubble which was similar with flat heater. And we conducted the boiling curve (from the natural convection to the film boiling) on the cylinder by the numerical simulation.
A neural network prediction of eutrophication index of mainstream discharged tributary flow in a rainstorm
Authors: Liu Lei , You Xue-yi 
Published: December 2019

Abstract
Rivers are the major inland water resources for the survival and health of human and ecosystem. Nonetheless, the water quality of rivers in many places is deteriorating or even eutrophic. As a major external pollution, rainfall runoff has attracted more and more attention. In order to timely know the eutrophication status of mainstream considering tributary flow discharge in a rainstorm period, a neural network prediction method is proposed. The inlet flow of mainstream and rainfall reappearing period are the input variables. The eutrophication index of mainstream control section is the output variable. It’s obtained based on Environmental Fluid Dynamics Code simulation and the universal index formula for eutrophic evaluation using a logarithmic power function. They form the training and testing samples. Then, the back propagation neural network is optimized and well-trained back propagation neural network is obtained. Ten cases are randomly selected and predicted. The results show that the relative error of the predicted eutrophication index is less than 1.5%. It’s demonstrated that this method can timely and accurately predict the eutrophication status of the mainstream in a rainstorm period. It will be helpful for decision makers.
Screening Tests of Copper Mine Tailings Flocculation with Polyacrylamide
Authors: Peng Yunyan , Jin Dong 
Published: December 2019

Abstract
The flocculation method had a good effect in treating copper tailings, and polyacrylamide (PAM) was commonly used as an effective flocculant. In this paper, a complete set of screening tests was established to effectively evaluate the flocculation performance of PAM used for copper tailings treatment. Firstly, the traditional jar tests were applied and the anionic PAM performed better for flocculation treatment of copper tailings than cationic and nonionic PAM. However, this method could not be further applied to screen anionic polyacrylamide with different molecular weights and hydrolysis degrees because of unobvious difference in settling curves of them. Therefore, the dynamic test rig was self-designed for further screening. Furthermore, the orthogonal design scheme of five factors and three levels was carried out for experimental design and results evaluation. The optimal conditions selected from dynamic rig tests were applied to the plant trial, and the treatment effect can meet the requirements after fine-tuning based on the plant operating conditions.
Optimization of extraction method for extracellular polymeric substances of Phanerochaete chrysosporium
Authors: Liu Jie , Wu Lei , Li Ningjie , Chen Zhongwei , Lan Qi 
Published: December 2019

Abstract
There are many methods for extracting extracellular polymeric substances of white rot fungi. In this experiment, we studied the efficiency of NaOH method, EDTA-2Na method and high-speed centrifugation method. Without destroying the cell structure and the activity of extracellular polymeric substances, we maximized the effect of extracellular polymeric substances. The results showed that in the ultrasonic centrifugation method, the polysaccharide concentration in the extracted EPS solution gradually increased with the increase of the ultrasonic action time. The concentration of polysaccharide in the EPS solution extracted under the ultrasonic action for 10 min and 12000 rpm was the highest (613.638 mg/L); on the whole, the ultrasonic treatment time has a greater impact on the extraction efficiency of polysaccharides in the extracellular polymer of Phanerochaete chrysosporium, and the polysaccharide concentration changes greatly. This study can provide useful information for the follow-up experiments related to extracellular polymeric substances of white rot fungi.
Study on the Water Sensitivity Analysis of Red Clay Shear Strength Based on Culon-morper Rule
Authors: Li Lifeng , Chen Changlu , Zhang Xiaohu , Deng Duilin , Han Liuping 
Published: December 2019

Abstract
In this paper, the changing law of the peak and residual cohesive force and internal friction angle for undisturbed soil from three different sampling sites in Bijie area were obtained through the indoor experiment. In the case of natural undisturbed water content, the peak and residual cohesive force decrease with the exponential relationship of water content, while the peak and residual internal friction Angle decrease linearly with the water content range. Based on the traditional Culon-morper shear strength criterion the changes of peak and residual shear strength with water content were obtained. The research in this paper is helpful to understand the change of shear strength with water content in Bijie area and to guide engineering practice.
Cytotoxicity and Mechanical Properties of New Mg-Zn-Y-Nd-Ca Biodegradable Magnesium Alloys
Authors: Dai Yuelai , Zhang Jiang 
Published: December 2019

Abstract
The new Mg-Zn-Y-Nd-Ca magnesium alloys are used as the research object, and its components are designed to evaluate the cytotoxicity of magnesium alloys with different component elements. The cytotoxicity test of fibroblast L-929 and osteoblasts MC3T3-E1 indicates that Mg-Zn-Y-Nd-Ca, as a biodegradable material, can meet the needs of cytotoxicity and promote the proliferation of osteoblasts MC3T3-E1. The mechanical properties test shows that the new magnesium alloys have good mechanical property, tensile strength is about 290Mpa and elongation can reach 15%.
Research on Energy Internet Market Trading System
Authors: Li Zhu , Pang Bo , Zhao Jing , Liu Dunnan , Li Genzhu 
Published: December 2019

Abstract
At present, the level of energy development and utilization continues to increase, but it is still difficult to meet the growing energy demand. Because different types of energy consume a lot, and there are some barriers between different energy markets. The construction of energy Internet market can strengthen the incentive role of market competition mechanism, make the market regulation ability play a greater role, and make the energy distribution more reasonable and efficient. Therefore, this paper constructs the energy Internet market trading system from the aspects of energy Internet market subject, market object, market structure and trading mode. It aims to provide a theoretical basis for the construction of the energy Internet market.
Numerical simulation of caco3 fouling formation in double pipe heat exchanger
Authors: qinqiao Zhou , yangyan Zheng , hancheng Tang 
Published: December 2019

Abstract
Fouling of heat exchangers in the industry is a common problem. This paper studies the fouling formation of CaCO3 in double pipe heat exchanger, and a numerical simulation of CaCO3 fouling formation in double pipe heat exchanger has been established from the perspective of heat and mass transfer. This study uses a fouling model with the CFD framework by a discrete phase model in commercial software (Ansys Fluent). According to the simulation, the change of the rate of fouling formation with Sediment particle diameter, particle mass flow, inlet velocity has been discussed here. The results indicate that smaller particles display a higher deposition rate, and the faster the inlet velocity, the smaller the deposition rate. Also, a higher mass flow rate results in a high deposition rate.
Research on Characteristics and Laws of Fracturing Dust Production in Deep Coking Coal with Similar Material Structure
Authors: Wenbin Zhao , Lei Song , Qing Liu , Shancheng Qiao , Jiyu Lu , Jinfeng Wang 
Published: December 2019

Abstract
The coking coal under the influence of the earth stress is easily broken in the mining process, the dust production is large, the particle size is small, and the dust is serious. Considering the characteristics of primary coal dust, the ratio of similar materials is determined by experiment of single axial compressive strength. By means of acoustic emission detection device, uniaxial compression test is carried out for the coking coal similar materials in different structural forms, and the characteristics of fracture development and dust production of the primary dust are studied. The experimental results show that: pulverized coal: gypsum: cement is 0.81:1:1 and 0.2:1:1 the compressive strength of similar materials is 3.5 mpa and 1.5mpa, which meets the test requirements. The regularity of structural pressure of similar material is shown, similar materials with smaller strength and heavy loading deformation, however, the fracture and fracture development, the primary dust production is large. When the axial pressure is low, the low-intensity similar coal test block is vulnerable to crushing deformation at the upper part, the lower high strength coal needs to be damaged when the force is larger.
Research on Numerical Simulation of Laminated Rubber Bearing
Authors: Gao Xiaoni , Qi Hongxue 
Published: December 2019

Abstract
Based on the test of laminated rubber bearing GYZ250*77 in the literature, the finite element analysis model of the bearing is established by using ANSYS analysis software. The bearing force can be calculated by considering different modeling methods and different load application methods, and the analysis results are compared with the test results. The results show that when the laminated rubber bearing performance is simulated and analyzed under vertical loads, the rigid zone loading method or the steel plate loading method should be selected according to the specific conditions, rather than the direct loading method; Both solid model analysis and plane model analysis can simulate the effect of vertical load on the laminated rubber bearing. The research results provide a reference for the numerical simulation analysis of the laminated rubber bearing.
Analysis of China’s New Energy Development in New Period of Renewable Energy Subsidy
Authors: Zhang Jinfang , Liu Jun , Mi Zhe , Zhao Qiuli 
Published: December 2019

Abstract
With the rapid decline in costs, China’s new energy development has entered a new period of subsidies. In order to achieve energy transition, new energy will keep playing a greater role, reflected in the installed power capacity and power generation electricity. How to improve the new energy carrying capacity of power system and promote the healthy development of new energy are still important problems, on which should be paid more attention in the future. Firstly, the changing trend of new energy generation cost has been analyzed in this paper. Then the development of new energy in the future has been pointed out. Thirdly, the comprehensive measures have been proposed to improve the accommodation capacity, and the relevant policy recommendations also have been figured out finally.
Research on the Performance of Private Pharmaceutical Logistics Enterprises by Statistical Data Analysis
Authors: Liping Xiao , yafang Huang , Yubo  
Published: December 2019

Abstract
This paper uses statistical data analysis method to compare the financial report data of Jiuzhou Tong Pharmaceutical Group Co., Ltd. (hereinafter referred to as Jiuzhoutong) for the past five years, analyzes its operation status, and puts forward the prospect of pharmaceutical logistics industry.
PM2.5 Analysis and Prediction Based on Seasonal Time Series Model
Authors: Ao Xiqin , Yuan Hongwu , Zhang Dianya 
Published: December 2019

Abstract
The PM2.5 data in Hefei area from 2014 to 2018 were collected through the website of meteorological bureau, and the data were analyzed and modeled with the help of statistical analysis software SPSS and EVIEWS. Firstly, the annual and seasonal distribution characteristics and trend of PM2.5 data in Hefei area during the past five years were analyzed. It was concluded that the distribution of PM2.5 had periodic characteristics, and the air quality in summer was the best and that in winter was the worst. According to the results of statistical analysis, PM2.5 data had seasonal characteristics. On this basis, the Holt-Winters additive model and SARIMA model in seasonal time series model were selected to model and predict. The prediction values of the two models were compared with the real values. The results showed that the prediction accuracy of the Holt-Winters additive model was slightly higher than that of the SARIMA model.
Input data analysis for the thermal rating prediction of the overhead conductor
Authors: Wenbo Li , Luhua Xing , Shanqiang Fu , Huadong Li , Zhe Jiang , Bo Chen 
Published: December 2019

Abstract
The thermal rating of the overhead conductor is closely related to meteorological factors such as wind speed, wind direction, ambient temperature and solar radiation. Therefore, both the historical thermal ratings and meteorological data are alternative input data to predict the thermal rating of the overhead conductor. It is important to select suitable input data to improve the prediction accuracy of the prediction results. Based on the collection of micro-meteorological data from overhead line monitoring system, this paper presents a method to determine the input data for the thermal rating prediction by analysing the autocorrelation of overhead thermal ratings and the cross-correlation between thermal rating and historical micrometeorological data. The results show that the proposed method can provide reference information for the selection of predictive input quantities and prediction time domain.
CO2 huff and puff pilot with staged-fracturing horizontal well in tight oil reservoirs
Authors: Yu Zhang 
Published: December 2019

Abstract
CO2 huff and puff has been considered as one of the most successful processes to increase oil recovery, however, this stimulation technology is yet to be widely used in tight oil reservoirs. In this paper, a production model is developed to describe the CO2-soak process in tight oil reservoirs, providing a guidance to optimize the production parameters for CO2-soak pilot in the staged-fracturing horizontal well. The result shows that the CO2 huff and puff process helps to improve the reservoir energy, the fluid mobility, and thus the reserves-to-production ratio. To be specific, the recovery factor of tight oil reservoirs stimulated with CO2 huff and puff technology is 2.0% higher than that produced with natural energy. The success in CO2 soak pilot is of importance significance to the effective development of tight oil reservoirs.
Evaluation Of Jiamusi Landfill Site Selection Based on Analytic Hierarchy Process
Authors: Zhang Huanhuan , Wang Xue , Zhang Yuehua , Sun Yanbin , Wang Changbao 
Published: December 2019

Abstract
Analysis of the appropriateness of existing landfills in Jiamusi City by Analytic Hierarchy Process, combining the natural and social conditions of the Jiamusi area, the environmental protection, environmental geology, social influence and other influencing factors are used as the criterion layer of the hierarchical model. The weighting method is used to determine the weight of each influencing factor, thus the comprehensive score of the landfill site is calculated. The result indicates that the landfill in Jiamusi City is a suitable site, which provides a theoretical basis for future site selection.
A review on voltage control for distribution systems with large-scale distributed photovoltaic power integration
Authors: Xu Zhicheng , Wang Xiaochen , Yang Jie , Zhang Fuqiang 
Published: December 2019

Abstract
In order to solve the problems of voltage wide-range fluctuations and over-limitation after large-scale distributed photovoltaic (DPV) integrated into distribution networks, this paper conducts a comprehensive and detailed analysis of voltage control strategy by summarizing existing voltage control technology and experience at home and abroad. The technical points and a comprehensive comparison from the perspectives of active power curtailment (APC), reactive power control (RPC) and active-reactive power coordination control (A/RC) are made. Through comparative analysis, it is found that adopting active-reactive power coordination control is a key measure to effectively improve voltage quality and increase the PV hosting capacity of distribution networks. The optimization of the control strategy can effectively improve the friendliness of large-scale PV system integration. The method and control strategy can provide a theoretical basis and practical reference for voltage management of distribution networks with high penetration PV integration.
Design of driving power supply with high isolation and small coupling capacitance based on current transformere
Authors: Zhang Daojian , Xiong Lan 
Published: December 2019

Abstract
General drive power supply can not meet the requirements of high-voltage isolation under high-voltage and high-frequency (HV-HF) conditions, and the larger coupling capacitance of general power supply will bring common-mode noise. In this paper, a 10kV isolation power supply with 1.55pF low coupling capacitance and multiple output is designed. The power supply adopts LCL-T resonant circuit to produce a 100kHz current source. The current transformer is used to isolate the power supply, which realizes high voltage isolation and small coupling capacitance. The number of output circuits is changed by increasing or decreasing the magnetic core.
The fault analysis for low pressure last stage blade of the deep load changing gas-steam combined cycle steam turbine unit
Authors: Wu Maosong , Zhao Yuzhu , Qi Junfeng 
Published: December 2019

Abstract
In this paper, the causes of the abrasion at the fir-tree type blade root of low pressure last stage which are loosely assembled and the axial movement of the blade root to the intake side of gas-steam combined cycle steam turbine unit are deeply analyzed, which are caused by the special operating conditions of long-term turning and the high-speed setting of turning gear of the deep peak load changing units. At the same time, through the analysis of the fracture of the broken blade, the damage of the top shroud and the vibration data of the accident process, it is concluded that the abrasion at the blade root results in loosening of the blade, the violent striking between the loose blades during the high-speed turning process, results in the damage of the top shroud and the blade. Under the action of centrifugal force of rated speed condition, a break first occurs, and the broken debris falls between the last rotor blade and the static blade, which causes severe impact damage to the blade body, thereby causing secondary tearing of the blade.
Research on High Precision Lithium Battery Management System
Authors: Pengcheng Wang , Zhigang Chen 
Published: December 2019

Abstract
Lithium battery has been used more and more in recent years due to its excellent performance such as high energy, high voltage, long service life, low self-discharge rate, environmental protection and so on. However, lithium battery also has the disadvantages of poor safety performance, complex protection circuit, high cost, etc. The high-precision lithium ion battery management system (BMS) is proposed to solve the charging and discharging protection problem of multiple lithium batteries. In order to solve this problem, we have designed a set of high-precision lithium battery management system by pulse width modulation based on previous studies.
Multi-objective coordinated scheduling of anomalous control domain with electric/thermal energy storage and translatable load
Authors: Su Anlong , Yu Fengjiao , Wang ShunJiang , Ning Liaoyi , Pan Chao 
Published: December 2019

Abstract
Difficulties in the consumption of new energy such as wind and light are one of the main reasons for the low penetration rate of distributed power. The multi-objective coordinated scheduling model of anomalous control domain with electric/thermal energy storage and translatable load is constructed from the aspects of energy utilization, system network loss and environmental pollution cost. A hybrid random black hole algorithm is proposed to improve the algorithm by using global search mechanism. Optimization ability. The example analysis is carried out by IEEE30 node power distribution system. The simulation results show that the coordinated optimization of energy storage and translatable load can effectively improve energy efficiency, reduce system network loss and environmental pollution cost, and verify the rationality of the proposed model
Design of Long-term and Medium-term Trading Model under Multi-energy Coupling
Authors: Yang Dongmei , Sun Yong , Li Baoju , Zhang Xiaochen , Li Pengfei , Zhang Tingting 
Published: December 2019

Abstract
Integrated energy service is a new industry with broad prospects in China. It is the energy industry from the vertical extension of the industrial chain to the horizontal interconnection. However, there are few studies on the domestic market trading mode. In view of this, this paper proposes a multi-energy coupled trading mode of cold, heat, electricity and gas in the medium and long-term multi-energy flow market.