bluuebunny/crossref_metadata_2025_split huggingface dataset:
Study on the analysis of simulated rainfall test for multifunctional planting net
Authors: Wu Meng-Ju , Hsu Chun-Li , Liang Chou-Fu 
Published: July 2020

Abstract
In this study, Japan’s multifunctional materials company was used to provide the phytosanitary materials jointly developed by Yamaguchi University, and the red soil of the National Pingtung University of Science and Technology Soil and Water Conservation Experimental Zone was used as the experimental soil matrix to test the densities (SP45 and SP60) and slopes (25, 35 and 45degree) of different paving under the rainfall simulating test (with I=80mm/hr). The analysis found that uses the multifunctional planting net can effectively reduce runoff and soil loss. The steeper the slope, the more runoff and soil loss it produces. Multifunctional planting nets with higher density can reduce the effect of runoff and soil loss, this statistics have not yet reached significant variance levels. This experiment is discussing the slope commonly used in engineering. These results can be used as a reference for further experiment planning.
yunOptimization of Test Conditions for TPA Texture Properties of Avocado Flesh
Authors: Ma Huifang , Liu Yijun , Tu Xinghao , Deng Dongyan , Ye Jianzhi , Yang Chunliang , Du Liqing , Li Liyun 
Published: July 2020

Abstract
In order to determine the optimization of test conditions for TPA texture properties of avocado flesh, the method of TPA was used to explore the effect of different compression locations and test parameters on the texture properties. The results showed that the middle part of the avocado flesh was the best part for testing the texture properties. through the correlation analysis of the measured values of texture properties by the avocado flesh, the hardness, springiness and cohesiveness were determined as the key investigation indications. The compressed speed had a significant effect on hardness and cohesiveness, and the compression distance had a significant effect on hardness and springiness. The optimization test parameters of avocado flesh were compression speed of 1mm/s and compression distance of 8 mm.
Direct shear test and model prediction analysis of unsaturated silt
Authors: Zhou Huiwen , Zhao Peng , Du Xueming 
Published: July 2020

Abstract
In order to study the mechanical properties of Unsaturated Silt in the east of Henan Province, the influence of water content, normal stress, degree of compaction and dry density is studied through direct shear test and model prediction. The results of direct shear test show that with the increase of moisture content and normal stress, the shear deformation of soil gradually changes from softening to hardening, and the higher the dry density is, the more obvious the phenomenon is. In addition, the cohesion decreases with the increase of water content, and the curve is broken line, and the turning point appears near the optimal water content; the influence of water content on the internal friction angle is small, and the internal friction angle increases with the increase of dry density at the same water content. At the same time, the hyperbolic model can well predict the direct shear test results, especially in the case of high normal stress, low density and high moisture content, the more the model prediction value is close to the test value.
Experimental Research on Advanced Treatment of Secondary Wastewater Treatment in Dairy Processing Industry by Reverse Osmosis
Authors: Jiang Tao , Wang Shuai , Wei Lina , Shan Dechen , Zhang Yun 
Published: July 2020

Abstract
This article will study the application of reverse osmosis advanced treatment technology in the secondary processing of wastewater in the dairy processing industry from the perspective of wastewater quality characteristics, and discuss the characteristics, application principles, and experimental design of the technology. This article will further analyze the effects and existing problems of deep treatment of reverse osmosis through experiments. Through a series of tests, we found that the temperature of the inlet water, the pressure of the system operation, the quality of the inlet water, etc., will all have a certain effect on the efficiency of the deep treatment of reverse osmosis and the long-term stable operation of the device. Then, this paper proposes some improvement and optimization measures for these problems. Through the long-term operation test, it is found that the most prone problem in the operation of the reverse osmosis device is the problem of membrane fouling. Based on this, an optimized treatment process based on the dairy processing industry secondary treatment wastewater treatment project is proposed. For one thing, this process can improve the water production rate and the recovery utilization rate of the secondary treatment wastewater. For another, it can reduce membrane pollution, reduce the cost of system operation and maintenance, and increase the service life of the device.
Study on the preventive Measures of Oxide Skin of 12Cr1MoV alloy steel Superheater
Authors: He Fengyuan , Wang Fei , Niu Ruqing , Li Yao 
Published: July 2020

Abstract
Through the analysis of the formation and structure of the oxide skin of 12Cr1MoV alloy steel, the formation mechanism of the oxide skin was studied, the causes and influencing factors of the oxide skin formation were obtained, and the measures to prevent the formation and fall off of the oxide skin of 12Cr1MoV superheater were put forward. The purpose of removing the oxide skin could be achieved by cleaning the formed oxide skin of the superheater.
Improved stability of Graphene Oxide in Salt Water modified by Situ Polymerization
Authors: Zhang Jing , Wang Jin-Jian , Wang Yao-Guo 
Published: July 2020

Abstract
A modified Graphene Oxide (GO) with excellent water dispersion, high salt tolerance and good temperature resistance was prepared by grafting short chain water-soluble polymer onto small particle size (200.5nm) GO as the matrix by in-situ radical polymerization. The functional groups, particle size, thermal stability, water dispersion stability and salt tolerance of m-GO (m-GO) were studied by FTIR, DLS, TG and stability analysis, respectively. FTIR analysis shows the significant characteristic peaks of water-soluble polymer chains. In addition, the average particle size increases from 200.5nm to 360.5nm and Zeta potential changes from -27.5mV to -4mV for GO and m-GO, indicating the successfully modification of polymer chain into GO. From TG analysis, thermal stability of m-GO is also greatly improved, as the initial thermal decomposition temperature increases from 88°C (mass loss of 5%) to 197°C. The stability analysis reveals that m-GO has well dispersibility in water solution under room temperature for 180d and excellent salt tolerance under several high temperatures for more than 90d.
The Electrochemical Impedance Spectroscopy Features of the Lithium Nickel Manganese Cobalt Oxide Based Lithium Ion Batteries During Cycling
Authors: Haiqing Xiao , Ziqiang Tao , Hong Bai , Hongwei Wang , Yanling Fu , Nianpeng Si , Hua Bai 
Published: July 2020

Abstract
Electrochemical impedance spectroscopy (EIS) is a viable approach that can be used in lithium ion batteries (LIBs) to investigate the electrochemical behavior. In this paper, Lithium Nickel Manganese Cobalt Oxide (NMC) type lithium ion batteries were divided into four groups. They were charged and discharged under various currents. The results showed that the higher the charging or discharging currents were, the faster the NMC batteries capacities fading were. In order to investigate the electrochemical behavior of the NMC batteries during cycling, we established an equivalent circuit model including one capacitor element in parallel with resistor and one constant phase angle element in parallel with resistor elements to study the impedance characteristics of the NMC batteries. The simulated results indicate that when the capacities of the batteries are dropping, the sum ohmic resistance of them will go up, and the resistance of Li+ diffusion through the SEI layer keeps increasing during cycling. The charge transfer resistance of the NMC batteries decreased at first and then kept increasing after 100 cycles. Among the three parameters, the charge transfer resistance values are the most sensitive factors that are corresponding to the state of charge of the NMC batteries during one single discharging process. We think that the internal ohmic resistance values can be used to predict the state of health (SOH) of the batteries and the charge transfer resistance can be used to predict the state of charge of the NMC batteries.
Research on Optimization of Tracking Equipment Based on In-transit Materials
Authors: Teng Juan , Bao Na , Ai Xiufeng , Ma Ning 
Published: July 2020

Abstract
As an important link in the transportation of materials, material tracking management is becoming more and more important.In-transit material tracking management is to carry out relevant decision management on the basis of obtaining material information in-transit, so as to achieve the purpose of improving logistics transportation service level, improving customer service satisfaction, maintaining customer loyalty, and further realizing the sustainable development of logistics enterprises. In this paper, through tracking a series of materials in transit, to achieve the goal of optimization, and using related logistics information technology and geographic information technology such as GPS, GIS, GSM to develop optimization management plan and do a good job in tracking management can improve management service level and product quality and quality.
Design of and Research of Impact Absorber Based on Synthetic Material
Authors: Huang Jinfei , Zhu Huaiqiu , Chen Wenbin , Lin Wanglin , Lu Jun , Wang Ze , Wang Dianwei 
Published: July 2020

Abstract
This paper carries out the design and research work of related testing equipment, and successfully develop a vertical deformation measuring instrument based on the surface layer of synthetic material. The design principle is that simulates the human body by dropping a weight of a certain mass from a prescribed height according to the law of conservation of energy movement process. In the whole process, the potential energy of the object has converted into kinetic energy, and the test piece forms an impact. The energy data absorbed by the test sample is collected by the impact sensor, and the sensor is sampled at a high frequency using a high-speed data collector and divided into its transmission to the computer system. Then the computer system records, analyses, processes, and calculates the collected data in real time, and displays the pressure change curve of the entire impact process, and finally calculates the impact absorption value of the tested surface during the entire process.
Improving the Cycling Stability of LiCoO2 at 4.5 V by Mg Doping and Graphite Coating
Authors: Song Shipai , Peng Bangheng , Peng Xiaoli , Zhang Xiaokun , Xiang Yong 
Published: July 2020

Abstract
Mg doping and graphite coating are applied to the LCO materials at the same time, thereby improving the structural stability of the LCO and the electrode conductivity at the same time. cLCO-0.02Mg displays the best cycle performance with a high capacity of 146.2 mAh/g after 60 cycles, corresponding to the 79% capacity retention of the initial discharge capacity. And cLCO-0.02Mg displays the best rate performance among the three samples with a high capacity of 41.1 mAh/g at 5 C. Mg doping helps to improve the structure stability, resulting in improving the cycle stability. Graphite coating enhances the electronic conductivity among the LCO particles, indicating a lower internal resistance, thereby resulting in the cycling performance improved.
Influence of Cycling on the Electrochemical Impedance Spectroscopy for Lithium Iron Phosphate Batteries
Authors: Xiao Haiqing , Bai Hong , Tao Ziqiang , Wang Hongwei , Fu Yanling , Si Nianpeng , Bai Hua 
Published: July 2020

Abstract
Electrochemical impedance spectroscopy (EIS) is one of the most effective methods that can be used to study the cycling decay behavior of lithium ion batteries (LIBs) without destruction of the battery. In this paper, in order to understand and to analyse the impedance response of the Lithium iron phosphate (LFP) batteries during various cycling rates, an equivalent circuit model (ECM) is established to investigate the cycling influence on the ECM parameters of LIBs. The influence of the discharging process on the patterns of the ECM was also analysed. The results indicate that the sum ohmic resistance and the Li+ diffusion through the SEI layer resistance keep increasing and the charge transfer resistance drop during the cycling when the retention capacities are higher than 90%. While the LFP batteries cycle under 1 C, the charge transfer resistance of them drop at first and then increase significantly after around 200 cycles when the retention capacities are lower than 80%. The results also show that when the LFP batteries are discharged during one single cycle, the sum ohmic resistance, the Li+ diffusion through the SEI layer resistance and the charge transfer resistance keep increasing. The results in this study indicate that EIS is a useful tool to obtain information for monitoring the state of health of LIBs.
Parameter-Variable Experiments for Conductivity of Acid Etched Fractures
Authors: Ming He Chun , Fu Duan Gui , Jun Cai , Chao Wang Xiao , Gang Wu 
Published: July 2020

AbstractConductivity of acid etched fractures is the decisive factor of results of acidizing treatment. At present, tests for etched fracture conductivity are in all cases executed using fresh acid under fixed experimental conditions, which determines that the test results can only capture fracture conductivity of the near-wellbore zone. This paper investigates fracture conductivity in cases of varied acid concentrations, temperatures, fracture widths and flow velocities along the fracture length direction, via the parameter-variable experiment for fracture conductivity. Results show that the combined changes of acid concentrations, fracture widths and injection rates have considerable impacts upon the conductivity distribution of etched fractures along the fracture length. Maximum etched fracture conductivity occurs within a certain distance from the wellbore. Variation of acid concentration along the fracture length is the main reason for changes in fracture conductivity, while variations in fracture widths and acid flow velocities may greatly reduce the effective etching length of the etched fracture.
Experimental Study on Ring Stiffness of Cable Conduit
Authors: Li Xing , Chen Liang , Wang Haochen , Fan Di , Zhang Lei , Zhang Xuhui 
Published: July 2020

Abstract
Ring stiffness is an important factor in the construction and design of buried cable conduit, which determines whether the pipe can resist external forces for a long time. This paper focuses on the experimental study of the ring stiffness of cable conduit. The ring stiffness tests of chlorinated polyvinyl chloride (CPVC) and modified polypropylene (MPP) under different conditions are carried out to verify the influence of thickness and temperature on the ring stiffness of pipe. The test results show that both thickness and temperature have a significant effect on the ring stiffness of pipe. At the same time, the influence of temperature on the ring stiffness of different materials is different, and the possible reasons are analyzed. The conclusion of the experiment has guiding significance for the quality inspection and practical application of cable conduit.
Application research of liquid CO2 fracturing in coal seam penetration
Authors: Liu Hao , Hao Wandong 
Published: July 2020

Abstract
Aiming at the characteristics of high gas content and low gas permeability in coal seams, high-pressure gas generated by the liquid phase transition of liquid CO2 is applied to the coal rock mass to produce a cracking effect. By analyzing the cracking process of CO2, using linear elastic fracture mechanics to analyze the crack propagation conditions and the damage and failure criteria of the coal body under the action of liquid CO2 blasting, the crack expansion state at different times were numerically simulated by the finite difference software ANSYS_LS_DYNA3D. Field tests show that CO2 cracking can improve gas drainage efficiency in the mining face.
Experimental Investigation on the Abnormal Measurement of Gas Pressure during Canister Desorption of Coal Cuttings
Authors: Zhang Xianshang 
Published: July 2020

Abstract
Accurate measurement of gas pressure during canister desorption of coal cuttings is an important foundation to prevent coal gas dynamic hazards and determine gas content of coal by volumetric method. It was a new finding that gas pressure in the insulation canister increased and then decreased during the initial desorption stage in the field test, which was different with common sense about gas desorption law. We took a series of experiments to explore the possible reason for this in the laboratory. The experimental results have shown the abnormal measurement of gas pressure was caused by the temperature decrease induced by adsorbing the heat and less external energy during canister desorption. The test condition was a key factor to accurate measurement of gas pressure in the canister. These findings offered insight into the temperature variation and also changed our understanding of the temperature effect on the gas pressure measurement during canister desorption of coal cuttings. The temperature variations induced by the adsorbed gas desorption should be taken into account in engineering application, especially the accurate measurement was applied for the initial stage of gas desorption.
Effects of coupling radiation on detonation parameters of inert explosive: a MC+thermodynamics study
Authors: Wang Jin-tao , Yu Wen-li , Wang Tao , Hang Gui-yun , Zhang Cong 
Published: July 2020

Abstract
Influences of neutron & γ mixing radiation field on decomposition speed and detonation parameters of long-term storage explosive molecular have been performed by a combined MC+thermodynamics method. The results show that energy deposition of neutron & γ transport in explosive components has a negligible effect on the decomposition speed, detonation speed and detonation pressure, but it significantly improves the detonation temperature of the explosive. The findings can be helpful for deeply understanding aging mechanisms for long-term storage explosive component, and improving its safety and reliability.
Comparative Study on Energy Dissipation Numerical Simulation of Different Energy Dissipators in Wide and Narrow Alternated Channels
Authors: Qin Feng , Tao Gang , Liu Weiwen , Wu Chengcheng , Qi Lijian , Li Jidong 
Published: July 2020

Abstract
This paper proposed clustered energy dissipators and ribbed energy dissipators in view of the energy dissipation of wide and narrow alternated river channels in mountainous areas. According to the structure and layout of energy dissipation piers, clustered energy dissipators are divided into several layout types: 1# “2-1 alternating” dissipator, 2# “2-1 inclined alternating” dissipator, 3# “4-3 alternating” energy dissipator; ribbed energy dissipator is divided into: 4# “ribbed” dissipator, 5# “ribbed + step-wise” dissipator. In this paper, we used a standard k-ε model to carry out 3D turbulent numerical simulation of energy dissipation of different energy dissipators in wide and narrow river alternated channels in mountainous areas, and analyzed its energy dissipation effect, which can provide design guidance for remediation and river bank slope protection.
SOC Estimation of Mine Power Supply Based on Improved BP Neural Network Algorithm
Authors: Ren Gaojian , Lin Yin , Sun Zhongguang , Shao Yan 
Published: July 2020

Abstract
Ni-MH, with high electric energy density and high stability, is the main backup battery of mine power supply. To improve the estimation accuracy of battery SOC (state of charge) and prolong its service life, this paper takes the single Ni-MH battery as the experimental object, and adopts an improved BP neural network that adds an adaptive rate momentum term to increase the discharged amount of electricity. The input characteristics of the network are the same as temperature, current and terminal voltage. According to the variance of the error between the expected output and the actual output of the training sample, the momentum term is adjusted; The adaptive learning rate is increased according to the change direction of the back propagation error. By comparing the standard BP neural network algorithm, the convergence speed is increased by 70%, and the generalization error is within 4%.
Development trend of protection technology for oil storage tank
Authors: Dou Ming-yuan , Liao Xiao-hua , Yang Shen-jun , Qin Ming-wei , Zou Shuai , Huang Fu-chuan 
Published: July 2020

Abstract
Petroleum is the lifeline of the national economy and an important strategic resource for the survival and development of the country. Nowadays, the main way of storage of raw materials and products in the petroleum and petrochemical industry is tank storage, so the operation, maintenance and anti-corrosion of storage tanks play a vital role in the industrial safety of the entire industry. This paper summarizes the development of tank anti-corrosion technology in petrochemical industry at present, discusses the mechanism of tank inside and outside corrosion, various anti-corrosion measures, highlights the importance of tank anti-corrosion protection, and looks forward to the future development of tank anti-corrosion technology. Petroleum is the blood of modern industry and serves the national energy security. The anti-corrosion measures of storage tanks are of great significance to the key deployment of strategic oil reserves in China.
Decoupling Analysis of the Relationship between Energy and Economic Development in Chongqing
Authors: Tao Aixiang 
Published: July 2020

Abstract
Since the Chinese government put forward the strategy of ecological civilization construction, great achievements have been made in the construction of ecological civilization in our country. At present, there are a series of uncoordinated phenomena among energy, environment, and economic development in China. Taking Chongqing as an example, this paper uses decoupling theory to study the relationship between energy, environment, and economic development. The results show that the environment and economic development in Chongqing have been decoupled, and the energy consumption and economic development have also been decoupled. The main reasons are as follows: the increase of investment in science and technology; the improvement of personnel quality and the adjustment of economic structure. Chongqing Municipal Government should further increase investment in education, science and technology, take more scientific and effective measures to adjust the industrial structure in order to achieve further coordinated development of energy, environment and economy.
Research on the Application of Acoustic Emission Intelligent Monitoring and Early Warning Technology for the Coal-rock Dynamic Disasters in Underground Mining Faces
Authors: Li Jiangong 
Published: July 2020

Abstract
Under the conditions of deep mining, it is difficult to predict the occurrence of coal-rock dynamic disasters accurately. The acoustic emission monitoring technology and equipment can realize the advanced monitoring and early warning for coal-rock dynamic disasters in deep mines, effectively make up for the problems such as single index of the dynamic disasters risk determination, low accuracy of early warning. And it can provide a basis for the prevention and control of coal-rock dynamic disasters such as coal and gas outburst, effectively assist the safe and efficient mining of the mines, and is the non-contact continuous prediction technology and equipment urgently needed for the safe and efficient production of the coal mines.