bluuebunny/crossref_metadata_2025_split huggingface dataset:
Microstructure Design and Properties of X100 Gas Line Pipe
Authors: Qiurong Ma 
Published: November 2020

Abstract
The microstructure evolution process of X100 pipeline steel is analysed, and the influence of different alloy composition and accelerated cooling process on microstructure evolution is studied in this article. It is obtained that acicular ferrite microstructure can make the yield strength of steel reach 650 MPa through micro alloying and thermo-mechanical control process(TMCP) with the comprehensive reinforcement effect of grain refinement, micro-alloying element precipitates and dislocation substructure. Acicular ferrite has the characteristics of fine grain, cross distribution, large angle grain boundary and presence of sub structure and high density movable dislocation. Test results of product quality also show that X100 pipeline steel which adopts Mn-Nb-Ti component system with a small amount of Ni (V), Mo alloy addition and TMCP process has obvious characteristics of fine grain. The Matrix is consisted of granular bainite and appropriate amount of MA as dispersion phase, which makes the tensile strength reach more than 800 Mpa. At the same time, the X100 pipeline steel has the characteristics of high toughness and good weldability, which is beneficial to ensure the safe operation of high pressure natural gas pipeline.
Design of air conditioning energy saving control system based on Niagara Internet of things technology and fuzzy algorithm
Authors: Zhang Yanjie 
Published: November 2020

Abstract
With the development of modern science and technology, Internet of things technology is entering people’s lives. People put forward higher requirements for the comfort and convenience of life. Air conditioning can bring people cool in hot summer, but it also brings huge energy consumption. In order to meet people’s requirements for air conditioning control comfort, and to achieve the purpose of energy saving and consumption reduction, this study is based on the Niagara Internet of things technology framework, through the human body infrared sensor and calendar control schedule, temperature sensor and air conditioning controller to control the start and stop of air conditioning. At the same time, the temperature fuzzy control algorithm is used to control the cooling temperature of the air conditioner according to the room temperature, so as to realize the adaptive adjustment of the air conditioning temperature. Finally, through the presentation XML (PX) view designed in Niagara software, the remote control of air conditioning can be realized. Through the debugging of the air conditioner, the adaptive control of the air conditioner can be realized, the comfort of the control can be improved, and the energy consumption can be reduced.
Research on gas natural emission in high pressure hydraulic reaming drillings
Authors: Tang Qiang 
Published: November 2020

Abstract
The research on gas natural emission in high pressure hydraulic reaming drillings is carried out at Guanyinshan Coal. This antireflection technology greatly improves the efficiency of gas natural emission, and within the limit value, the efficiency is greatly related to the rate of drilling slag. This research provides a reference for the high pressure hydraulic reaming in this mine, and also for similar mines to improve the efficiency of gas natural emission and control reaming shotcreting.
Prediction of Uncontrolled Refueling Emissions from Gasoline Vehicles Based on Mathematical Models
Authors: Liu Daming , Zhong Xianglin , Li Yaqi , Zhen Xudong , Lu Shaoyun , Xue Yuanyuan 
Published: November 2020

Abstract
The prediction of the uncontrolled refueling vapor generation of gasoline vehicles is the basis of the refueling emission control. It is of great significance to understand the mechanism of the gasoline vapor generation during the refueling process and to develop the refueling emission control devices. In this paper, the prediction of the refueling vapor generation of gasoline vehicles under uncontrolled conditions was conducted by using the empirical models, the steady state model and the time-varying diffusion model, respectively, and the prediction results were verified with the test results. The research results showed that the time-varying diffusion model had better adaptability and prediction accuracy than the empirical model. And the more influencing factors can be considered. But the verification and correction for this model were also needed by using experimental data. The empirical models had better prediction accuracy under specific conditions. However, due to the limitations of experimental conditions, the models lacked universality, which was an inherent defect of the empirical models. The steady-state model ignored the non-uniformity of fuel vapor concentration distribution in the fuel tank, resulting in a large error in the prediction results.
Laboratory study of nitrogen/foam enhanced oil recovery from vuggy-fractured carbonate reservoirs
Authors: Yang Wang , Hongwei Fan , Quanfeng Gong , Dong Xin 
Published: November 2020

Abstract
Aiming at a special vuggy-fractured carbonate, the mechanism of nitrogen flooding, co-injection of water and nitrogen (CWN), water alternating gas injection (WAG) and foam flooding was studied by slate model. Experimental results showed that mechanism of nitrogen flooding was displacing attic oil, which was similar to other vuggy fractured reservoirs. While to CWN, the main mechanism was not relieve of gas channeling. It was found that gas mainly flowed through the upper hole or the upper location of hole and water mainly flowed along the lower hole or the lower location of hole. The main reason why CWN recovery was higher than nitrogen flooding was that during nitrogen flooding, nitrogen would substitute attic oil, so some oil would flow to the water channel and form remaining oil in water channel. During CWN, water flowed mainly along the water channel in previous water flooding, so remaining oil in water channel would not occur during CWN. While to WAG, it had lowest recovery. Among the previous three flooding methods, remaining oil named “sandwich oil” was found between gas and water.
Application of heterogeneous integrated energy system in urban innovation park
Authors: Wang Lu , Wang Li , Zeng ShunQi , Li Zhen , Guo ZiXuan , Zhen Yun 
Published: November 2020

Abstract
Heterogeneous energy system includes different energy forms such as cold, hot and electricity, among which there is a large coupling relationship. This paper discusses the main features of heterogeneous energy system, introduces the characteristics and advantages of the application of heterogeneous energy system in the park. The methods of load interaction and comprehensive configuration used in the deployment of heterogeneous energy systems are described. Taking the energy system of Guangzhou university town as an example, the composition of heterogeneous energy and its application in the park are analyzed.
Integrated Design of Solar Energy Utilization and Building Based on PLC
Authors: Zhou Li , Chen Bo , Liu Yang 
Published: November 2020

Abstract
At present, fossil energy consumption still occupies a dominant position in China’s energy consumption structure, and problems such as low energy consumption efficiency, high degree of carbonization and large environmental pollution persist for a long time. Under the background of advocating environmental protection and energy saving, the combination of solar energy and building is the inevitable trend of building energy saving development, and the integrated design of solar energy and building has become a concern of the architectural circles. With the deepening of people’s understanding of environmental problems and the further deterioration of energy problems, more and more buildings begin to use clean and energy-saving solar energy devices. At present, the construction and development of urban residential buildings in China are mainly multi-storey and high-rise buildings. Therefore, higher requirements are put forward for the application form and scale of solar water heating system in residential buildings. In this paper, according to the current situation of solar energy utilization in buildings in China, based on PLC (programmable logic controller), the paper puts forward some suggestions to promote the integrated design of solar energy buildings.
Research on Stability of Gabion Slope on Seepage-stress Coupling
Authors: Ning Song , Zhenxue ZHU , Chao SU , Jian-jian Dai , Fan Zhu 
Published: November 2020

Abstract
Based on an example of a basalt fiber gabion ecological slope protection project, this paper uses ABAQUS finite element software to conduct seepage-stress coupling modeling and calculation for the undisturbed slope and gabion protection under two conditions of low water level and design water level. Based on the theory of direct coupling method and strength reduction method, the slope instability evaluation criterion is based on the displacement mutation of the model and the formation of the plastic penetration zone of the soil. The safety factor of the coupled gabion protection is greater than that of the original slope. The results show that the overall stability of the slope after being supported by stone cages and grid protection pads is enhanced, which shows the feasibility and good application prospects of the engineering practice of stone cage slope protection. The research conclusions of this paper can provide reference for the study of seepage-stress coupling in water conservancy projects and provide reference for the stability analysis of similar engineering slopes.
Analysis on the development level of Eco-Cars in China
Authors: Zhang Ting , Zhou Maoxiang , Zhao Mingnan , Shujie Xu 
Published: November 2020

Abstract
This paper first analyzes the development environment of China’s Eco-Cars from the government guidance and industry status quo, and points out that the Eco-Car has become the development trend. Secondly, it introduces the vehicle ecological and health performance indicators that the industry pays attention to. On this basis, it makes statistical analysis on the performance of the main ecological performance indicator. In addition, the proportion of vehicles with excellent ecological performance is analyzed. Finally, this paper expounds the development suggestions of the Eco-Car in China.
Evaluation Method of Regional Geothermal Resources-A Case Study of Yingzhou District, Fuyang, Anhui Province
Authors: Yang Jie , Hu Lin , Wang Wei , Wang Yang , Tao Yuezan 
Published: November 2020

Abstract
Geothermal is a kind of renewable, clean and environmental protection new energy. In the process of exploiting geothermal energy by groundwater heat pump (GWHP) system, the regional geothermal water resource is the basis of the system running continuously. In this paper, taking Yingzhou District, Fuyang, Anhui Province as an example, a conceptual model of thermal reservoir is proposed according to the general situation of regional hydrogeology, considers the main thermal storage parameters, and combines with the pumping test data of a geothermal well of the project to calculate the exploitation quantity of single well geothermal water. Then, the regional geothermal reserves, recoverable geothermal water and total heat are evaluated. The results show that the total recoverable geothermal water resources of the Neogene Guantao formation and the Paleogene Jieshou formation in the project area are 9.093 million m3/a, and the recoverable geothermal resources amount is 9.6795×1016 J, which reaches the medium-low temperature and medium-sized geothermal field scale. Furthermore, the recoverable resources of geothermal water in the reservoir obtained by the method of average well distribution satisfy the condition of water-heat balance, which will be applied to the evaluation of regional geothermal resource exploitation.
Simulation of Optimized Air Supply for Air Conditioning Systems in Large Spaces
Authors: Li Pengfei , Yang Liquan , Lu Jing , Liu Zehua 
Published: November 2020

Abstract
Simulate and compare the air distribution when the air outlets on both sides of the stratified air-conditioning are arranged on the same horizontal plane and the air outlets on both sides are arranged at different levels to study the distribution law of temperature and velocity fields in the workshop. The simulation results show that under the same air supply conditions, when the air outlets on both sides are arranged at different levels, the air velocity in the workshop is lower and the velocity field distribution is more uniform. The temperature distribution effect of the two in the workshop is almost the same.
Research on the Strategy of Rural Territorial Space Renovation under the Background of Rural Revitalization -- Take Gaozhai Village, Xing’an County as an Example
Authors: Lai Lingling , Tengand Hanshu , Wang Jinye 
Published: November 2020

Abstract
Rural Revitalization is a major national strategy in the new period, and how to implement the land space renovation and ecological restoration with “landscape, forest, farmland, lake, grass” system as the main content has become a major problem directly affecting rural development. Taking Gaozhai village in Xing’an County as an example, the paper analyzes the problems existing in the territorial space renovation by analyzing its land space situation, and puts forward corresponding suggestions and specific measures, so as to provide reference for improving the ecological conditions of rural production and living and comprehensively realizing the Rural Revitalization.
Environmental Planning and Economic Resources Optimization Modelling: An Empirical Approach Based on the Earth Ecological Economic Metaphor Principle
Authors: You Yucong 
Published: November 2020

Abstract
This paper is with an objective of exploring a top-level design system model for environmental planning and economic resource optimization. Based on the economic metaphor theory of the earth’s ecological environment, of which “economic man” and “ecological man” are both involved, this study has self-built a WEMC corpus for empirical purpose. The study’s findings have revealed that, environmental planning and the optimization of economic resources reflect the relevant “eco-systemicity” from the perspective of economic metaphor, which is embodied in three major ecological categories (human, plant and animal) discovered in this empirical study; therefore, it is necessary and highly feasible to, based on the theory of systems engineering and ecological mechanics, explore and analyse the constituent factors, functions, stability, and evolution of the economic ecosystem from a new perspective and method. This paper has drawn a conclusion and proposed a top-level design system model for environmental planning and economic resource optimization based on the ecosystem integration.
Exploration on Planning Compilation of Characteristic Protection Villages from Perspective of Village Renewal: A Case Study of Gaozhai Village in Xing’an County, Guangxi
Authors: Hanshu Teng , Yinli Bi , Lingling Lai 
Published: November 2020

Abstract
The theory of village renewal originated from Germany, which has rich experience in theory and practice of village renewal. From the perspective of village renewal theory, the authors explores the planning compilation method of characteristic protection villages in this paper. Taking Gaozhai Village in Xing’an County of Guangxi as an example, the authors discusses the planning compilation strategies of characteristic protection villages from the aspects of data collection and current situation investigation, orientation and goals of village development, land space of life, production and ecology, ecological environment protection, renovation of villager’ residential areas, layout of industrial development, public service infrastructure, and consultation so as to provide reference for the compilation of village planning.
Diffusion Test and Prediction of PM2.5 Concentration in Urban Street Traffic Microenvironment
Authors: Ni Yanshu , Ma Lianglin 
Published: November 2020

Abstract
A detailed test plan was developed by analyzing the factors affecting PM2.5 diffusion in the urban street traffic microenvironment. After field investigation, several test streets within the third Ring Road of Harbin city were selected to investigate and test the hourly traffic flow of the streets, and the geometric structure of the block (road width, building height) was measured. The research carried out tests on the PM2.5 concentration, wind speed, temperature and relative humidity of actual street test points. Based on the actual test data, BP artificial neural network and the improved LMBP neural network were used to carry out simulation research on MATLAB platform respectively. A PM2.5 concentration prediction model was established to compare and analyze the reliability of the model. Scientific and reasonable prediction of PM2.5 pollution in the traffic microenvironment in a specific area.
Effects of a Commercial Deactivator on the Deactivation of Phosphorus in Simulated Lake Water and the Influencing Factors
Authors: Chun Zhang , Zhang Jinliu , Cao Wenfang , Zhen Ma 
Published: November 2020

Abstract
To study the influence of external factors on the deactivator effect of a commercial deactivation under field conditions, the effects of different dosage, pH, oscillation time, oscillation frequency and initial phosphorus concentration on the deactivation effect of simulated lake water were studied. The results show that when the other conditions are the same, the deactivator has the best deactivation effect when the dosage is 0.07g, the pH is 6-9, the oscillation time of the deactivator is 45 minutes, the oscillation frequency is medium speed (180r/min), and the initial concentration of phosphorus is not more than 3mg/L. Orthogonal experiments show that the best deactivation effect is that the initial concentration of phosphorus is not more than 3mg/L, the oscillation frequency is medium speed (180r/min), and the dosage is 0.06g. The main effect of SPSS software is analyzed: the influence of initial phosphorus concentration, oscillation frequency and dosage on deactivation effect of the deactivator decreases in turn.
Intelligent anti-collision warning method of fairway buoy based on passive underwater acoustic positioning
Authors: Chen Shuai , Xiang Haowen , Gao Shuangyin 
Published: November 2020

Abstract
In recent years, there have been frequent safety accidents of ships striking fairway buoy, which has aroused great concern. This paper firstly analyzes the causes of the collision of ships with navigation marks, and then proposes an intelligent anti-collision warning method of navigation marks based on passive underwater acoustic positioning. This paper has designed a kind of intelligent anti-collision navigation marks. The underwater acoustic transducer is installed under the navigation marks to complete the acquisition of distance information between the ship and the navigation marks. When the dangerous ship enters the dangerous water area set in this article, through the early warning matrix lights mounted on the navigation marks and the AIS information center, targeted warnings are given to dangerous areas where dangerous ships are located. The supply-energy analysis results show that this intelligent anti-collision warning navigation mark generates more electricity per day than its power consumption, and at the same time, the rich electricity can be filled with lithium iron phosphate batteries, which guarantees the daily work of this navigation marks and provides stable power support for all parts of the navigation mark. This intelligent anti-collision early warning method can give full warning to dangerous ships, avoid the collision of ships with navigation marks, and ensure the safety of navigation at sea.
Failure Analysis of the Autoclave Sterilizer Fracture
Authors: Chengjun Jiang , Kai Tao , Yannan Du , Wei Wang 
Published: November 2020

Abstract
The fracture reason of the autoclave sterilizer was analyzed by metallographic examination, fracture analysis and chemical composition analysis. The results showed that failure of the autoclave sterilizer was due to stress concentration at the closed angle of poor fusion area by cyclic stress via vacuumizing and filling water vapor.
Study on Damage Energy Consumption Characteristics and Mechanical Behaviour of Mixed Aggregates Cemented Backfill Before Peak Stress
Authors: Hongbin Liu , Aixiang Wu , Yongqiang Hou , Chaoqun Dai , Shixing Yang , Yong Wang 
Published: November 2020

Abstract
Mixing coarse aggregates into cemented paste backfill can significantly affect its mechanical properties. Many mixed aggregates cemented backfill samples were carried out uniaxial compression tests to see how the coarse aggregate replacement rate affects its uniaxial compressive strength, and analyze the influence on the damage energy consumption characteristics of the backfill before peak stress based on damage mechanics theory. Then taking Jinchuan No. 2 Mine as an example, study the stability and mechanical behaviour of the backfill in the stope by means of numerical simulation. The results show as following: The uniaxial compressive strength of the backfill at different curing ages has a quadratic function curve relationship with an increasing coarse aggregates replacement rate. This indicates that there exists an optimal replacement rate of 60%. When the content of coarse aggregate exceeds the optimal value, the strain value of the backfill sample corresponding to the peak stress damage value decreases, which means that the more the content of coarse aggregate, the more the backfill sample is prone to brittle failure. The peak stress specific energy increases first and then decreases with increasing coarse aggregate replacement rate, shows a similar change with its uniaxial compressive strength, so the backfill with the higher uniaxial compressive strength have stronger energy storage mechanism. The numerical simulation results show that the backfill with the optimal coarse aggregate replacement rate can effectively relieve the stress concentration of the rock mass in the stope, however the filling body has obvious tensile damage due to the mining activities.
Research on Intelligent Matching Technology of Marine Electric Propulsion System Based on Fuzzy Multiple Decision Making
Authors: Chen Xiaomi , Hao Chunxue 
Published: November 2020

Abstract
Based on matching process of ship electric propulsion system and the fuzzy multiple decision technology, an intelligent matching method of ship electric propulsion system is proposed with the establishment method of factor set, decision set and fuzzy linear transformation in line with the ship electric propulsion system. The decision result from this method is found to be dependent on the maximum membership principle or the score system. By an example, the fuzzy multiple decision-making method is simple in calculation, in line with actual situation and also provides a guidance in the design of ship electric propulsion system. Further related methods and directions are discussed in the end.