bluuebunny/crossref_metadata_2025_split huggingface dataset:
Application of Intelligent Manufacturing in the Production Line of Hydraulic Support Coal Machinery Plant
Authors: Ji Lianquan 
Published: March 2021

Abstract
From the definition of intelligent manufacturing, the status quo, shortcomings and solutions of the hydraulic support coal machine factory are introduced. Intelligent manufacturing is a human-machine integrated intelligent system composed of intelligent machines and human experts. Combined with research and the implementation of its own work, it introduces the current production lines of China’s hydraulic support coal machine factory from cutting, welding, spraying, and processing. The application situation of intelligent manufacturing, finally analyzed the problem of limited site, tight construction period, and unreasonable production process in the intelligent manufacturing of the hydraulic support coal machine factory, and proposed solutions that must be lean first, combined with automation and informatization. Realize the intelligent construction of the factory on the basis of optimized technology and modern management concepts, and finally establish a CPS system based on digital twins to realize a predictable intelligent factory.
Design of Frequency Conversion and Soft Start Cooperative Control System for Mine Fan
Authors: Zhang Hongkui , Huang Xiaoting , Yang Guangyu , Li Tingliang , Ma Long , Chen Lei 
Published: March 2021

Abstract
In order to improve the safety and reliability of mine fan control system and realize remote control in dual operation modes, a cooperative control system of frequency conversion and soft start of mine fan was developed based on PLC. On the basis of analyzing the position of coal mine in China’s economic development and the role of coal mine ventilation system, this paper expounds the working principles of mine soft starter and mine frequency converter, and designs a cooperative control system of mine fan frequency conversion and soft start based on PLC, which realizes remote control of mine fan starting, running and stopping, and has the functions of voltage, current, wind speed and air volume parameter monitoring and fault protection.
Practice of Reconstruction Soils Engineering in Shaanxi Province
Authors: Lei Na 
Published: March 2021

Abstract
Cultivated land protection and food security are always major issues related to the national economy and people’s livelihood. With the development of the economy and the reduction of high-quality reserve arable land resources, the difficulty of land consolidation has escalated. In this context, A series of land consolidation methods were innovated applied land science and technology in Shaanxi Province, transforming difficult-to-use land into arable land resources by reconstructing soils, mainly including soft rock and sand synthetic “soil”, barren gravel land farming layer construction and stained soils reconstruction have ensured the economic and social development in Shaanxi Province and provided a reference for land consolidation in other regions in China.
Evaluation of water resources carrying capacity in Changzhi City Based on Analytic Hierarchy Process
Authors: Li Fucui , Niu Kai 
Published: March 2021

Abstract
With Changzhi City being established as the provincial sub central city, the demand for water resources in the whole city has changed greatly, and the contradiction between supply and demand of water resources still appears in some areas. In order to have a comprehensive and in-depth understanding of the local water resources carrying capacity, the index system was established by selected 14 indices from four subsystems, and the analytic hierarchy process and index evaluation method were used to establish the evaluation model to evaluate and analyze the whole city and each county. The results show that the water resources utilization degree was the largest. The whole city is in a strong level with great potential. Among the counties and districts, only Luzhou district and Shangdang district water resources carrying capacity was medium and other counties were high or highest. The conclusion reflects the current situation of water resources and has guiding significance for future planning and allocation.
Research of Beauveria bassianao the field control of Locusta migratoria manilensis Meyen
Authors: Wu Haifeng , Rozlomiy Natalya G. 
Published: March 2021

Abstract
In this experiment, through testing the B.bassiana colony space persistent change on the lawn by isolate medium, explore the application time of field climate and other factors on the inoculum effect. Results: The control effect of lawn locust, Suspension emulsion mortality rate was 74.2%, Bt bacterium mortality rate was72.2%, B.bassiana bacteria mortality rate was70.1%. Test the population dynamics of B.bassiana surviving in lawn during 30 days by PPDA medium, we found that different strains of time has a great influence to the spore viability. Each cell showed obvious changes, the overall downward trend evident. After application the lawn every part of colony persistent distribution for soil> leaf > air; the best application time is 6:00 p.m.
Access to higher education: California and Jiangsu
Authors: Zhang Qinyuan 
Published: March 2021

Abstract
This study uses the mixed research method to examine the American and Chinese college entrance system with different college admission policies. Based on reading documents from education bureau and school websites and conducting a survey by using self-designed questionnaires to 38 participants from California and Jiangsu, the study explores students’ choices, family backgrounds and parental influence in deciding students’ access to higher education. The results highlight that in both American and Chinese higher education system, students’ family backgrounds play an important role in students’ access to higher education. Such findings are closely tied to social stratification and social mobility in contexts of Chinese and American society, including cultural and social capital students can acquire from parents.
Analysis of Influencing Factors and Improvement Measures of Water Injection Development Effect in Low Permeability Reservoir
Authors: Yu Xiang 
Published: March 2021

Abstract
The global oil resources are facing the shortage phenomenon, so the improvement of reservoir production efficiency is a major problem faced by researchers at present. In recent years, low permeability reservoirs have been highly valued by relevant scholars because of their abundant reserves. The production effect of low permeability reservoirs is affected by many factors, including water flooding development potential, effect and artificial control.
Design and research of multifunctional fast binding device
Authors: Wang Peng , Zhang Shuzheng , Wang Xiangdong , Dong Deshu , Lu Jianqiang , Wang Danni , Yan Zhou 
Published: March 2021

Abstract
In order to solve the problem of hand injury and low efficiency of steel wire binding by hand, a multifunctional fast binding device is designed. It works on the principle of large pitch screw and is a sliding friction structure, which makes the binding work of steel bar change from manual reciprocating winding to linear expansion and contraction movement. At the same time, a counter is added to meet the needs of different steel wires. It is convenient to use and reduces the labor intensity of workers, High efficiency, in line with the construction site for equipment requirements.
Design and Research of Mechanical Gas Timing Shut-off Device
Authors: Zhang Shuzheng , Xu Meng , Yuan Xun , Zhao Cong , Li Xianning , Yan Zhou 
Published: March 2021

Abstract
With the generalization of the use of gas and natural gas, the design and research of the timing shut-off device for gas has become an indispensable factor to avoid gas poisoning incidents. In order to solve such problems, this paper proposes a mechanical gas timing shut-off device design, expounds the operation principle of the device, draws the device schematic diagram and assembly drawing, and introduces the key technological breakthroughs in the research of mechanical gas timing shut-off device. Clarified the innovation and promotion significance of the device.
Research on Calibration Model of Bridge Health Monitoring Based on Vibrating Wire Strain Sensor
Authors: Peng Lu , Jing Genqiang , Wang Yixu , Miao Na 
Published: March 2021

Abstract
Bridge structure quality inspection and health monitoring are important research contents of the transportation industry. This study uses the national standard 6061 aluminum alloy cylindrical bar, and vibrating the vibrating wire strain sensor used in the mainstream of the two markets in a symmetrical position. This study used a superimposed force standard machine to perform a 0-100KN compression test on a bar. We performed data regression analysis on the data of the two sensors collected and obtained a new model. By comparing the output values with the traced force standard machine, we conclude that the trend of the model is consistent with the trend of the force standard machine. This study provides a theoretical basis for the rapid calibration detection of bridges before installation by strain monitoring sensors.
Research on the application of MOD method, the core technology of industrial engineering
Authors: Hu Xiaoming 
Published: March 2021

Abstract
This paper studies the application of MOD scheduled action time standard method. The Modular Arrangement of Predetermined Time Standards is abbreviated as MODAPTS method. MODAPTS job determination method is widely used in human factor engineering. This method decomposes job actions into 21 basic human body actions. When its time unit is MOD, each action has a corresponding standard time. In this pap, that application of MODAPTS method is systematically discussed, from its characteristic to the basic system of MODAPTS and the mark of motifs, with emphasis on the application of time value of time-limited action and simultaneous action of both hands, and the difficult MOD analysis formula is given. I hope that MODAPTS can be widely applied to China’s industrial engineering in the application of big data and Internet of Things human factors engineering and the promotion of Made in China 2025.
Simulation and experimental research of digital manufacturing based on reverse engineering
Authors: Pan Junbing , Xu Jiazhong , Zhang Chenliang 
Published: March 2021

Abstract
Reverse innovative design has long been an important subject in the engineering field. In this paper, two different-curved desk lamp stands were studied. The point cloud data of the stands was collected by using Win3D scanner and Geomagic Wrap software. Then, after facial processing of the data, reverse innovation of the facial data was performed through the reverse design software of Geomagic Design X to develop a new desk lamp stand that can satisfy engineering applications. It is actually an upgrading of the appearance of the original desk lamp stand. Finally, the numerical control program of the new desk lamp stand was completed through the processing module of UG software, and the program was verified by simulation and was used for experimental sample machining. Experimental results showed that the difference between the processed sample and the research model was less than 0.02 mm, indicating that the new design can satisfy engineering requirements and replace the original desk lamp stand. This means that reverse design technology is highly compatible with machining technology, which can shorten the innovative design period of product.
Discussion on Application Technology of 5G Network in the Field of Coal Mine Robots
Authors: Long Ma 
Published: March 2021

Abstract
In this paper, the technologies of obstacle-surmounting performance, explosion-proof design, communication and sensing of robots are researched and explored, and the prototype of inspection robot body and handheld remote control terminal are developed. Through the combination of virtual simulation, theoretical calculation and field test feedback, the modular design and optimization technology of robot scale, structure and function is broken through, and the modular special robot for mining with strong environmental adaptability is developed. This scheme is suitable for large-scale popularization in coal mines.
Study on Thermal Analysis and Cooling System of Mine Flameproof Inverter
Authors: Qing Chen 
Published: March 2021

Abstract
At present, the underground environment is humid and complex, and there are a lot of flammable and explosive gases. The electric control equipment such as underground roadheader and shearer all adopt frequency conversion technology. Temperature rise is very important for the service life and working stability of the core components of underground flameproof frequency converter. The cooling systems of IGBT, capacitor and driving unit can be roughly divided into air cooling, cooling medium circulation and natural cooling.
Laboratory Model Test and Analysis of Excess Pore Water Pressure Dissipation of Pile Driven by Tapered - Perforated Tubular Pipe Pile
Authors: Yang Yansong , Lei Jinbo , Deng Dingzhe , Zou Yongqiang 
Published: March 2021

Abstract
Through methods based on the indoor model test, the use of static pressure pile with three different hole arrangement and three different kinds of taper cone - bore log shape composite pipe pile bored into soil by static pressure,and after observing the excess pore water pressure caused by pile driving when testing, and analyzing the process of various pipe pile static pressure, the change rule of the excess pore water pressure varying with taper hole arrangement, size, radial distance, pile depth has been gotten. It is found that stellate shape has the best dissipation rate of excess pore water pressure under the condition of hole arrangement and taper 1/70, which is of certain guiding significance for promoting the engineering application of tapered - perforated tubular piles.
Correlation Analysis of Bridge Flutter Critical Wind Speed and Three-Component Force Coefficient Based on Grey Correlation Method
Authors: Hui Gao , Xing Li 
Published: March 2021

Abstract
Based on the grey correlation theory, analyze the correlation between the three typical main girder section flutter critical wind speed and three-component force coefficient of long-span bridge truss section, closed steel box girder section, and slotted steel box girder section. Provide a reference for establishing the prediction model of the flutter critical wind speed estimated from the static wind load, It is convenient to quickly and accurately judge the stability of bridge flutter. The analysis results show that the lift coefficient, the lift moment coefficient and their derivatives have a good correlation.
Research and Exploration of Steel Structure Deepening Design Based on Multi User Mode
Authors: Hu Wei , Lu Jun 
Published: March 2021

Abstract
Steel structure with its high strength, light weight, good seismic performance, high degree of industrialization, short construction period, strong plasticity, energy conservation and environmental protection and other comprehensive advantages, has been widely used in machinery, construction and many other fields. But because of its huge scale, increasingly complex structure, project management is facing many problems. Based on the multi-user mode of steel structure in-depth design, the technology of product modelling, structural analysis, in-depth design, engineering calculation, processing and manufacturing and cost control are studied, especially the advantages in model creation and component manufacturing bring more possibilities for the mechanical industry. Based on the multi-user mode, the steel structure deepening design technology integrates the technical requirements of the project, provides clear information for the owner, designer, raw material supplier, manufacturer, construction party, etc., promotes the implementation of the project, improves the achievement degree of the project, and improves the control ability of the engineering personnel. A number of foreign large-scale bulk material conveying systems have obtained good benefits by using the steel structure deepening design technology based on the multiuser mode, which improves the industrialization degree of steel structure component design and manufacturing, so that the research results have good practicability and operability. The research results have positive guiding significance for the practice of steel structure deepening design.
Discussion on the applicability of 90° phase conversion technique in seismic sedimentology
Authors: Zhao Pingqi , Li Xiaoliang , Zong Jie , Huang Fang , Wu Jizhong , Yang Fei , Yu Gaoming , Wei Pengpeng 
Published: March 2021

Abstract
Since 1998, domestic and foreign scholars have conducted more systematic research on the theory and application technology of seismic sedimentology, and 90° phase conversion has been proposed as one of the core technologies of seismic sedimentology. But in actual research and application, the technology has not achieved the expected results. The 90° phase conversion intends to give the meaning of the seismic reflection event representing the stratum interface to the lithologic strata by means of phase shift. Due to the complexity and change of the underground strata, there are usually multiple lithology frequent thin interbeds. Therefore, the event axis in the seismic profile is the combined effect of multiple sets of thin interbeds. The seismic data after 90° phase conversion cannot convert the original seismic data from interface seismic profile to lithologic stratigraphic profile, and lacks clear geological meaning. Its application ability in seismic structure interpretation and seismic lithology interpretation is very limited. Therefore, it is difficult to become an applied technology of seismic sedimentology. Therefore, it is not appropriate to use the 90° phase conversion technology as the core technology of seismic sedimentology. This technology neither improves the seismic data resolution capability nor accurately converts the seismic profile into a lithological profile.
Analysis of Physical Layer Security Communication in Smart Grid
Authors: Xu Aidong , Zhang Tengyue , Chen Liang , Tang Jie , Jiang Yixin , Guo Juan , Fei Lingzhi , Zhang Peng , Zhang Yunan 
Published: March 2021

Abstract
In the smart grid environment, the secure transmission of power data is a major challenge for smart devices. Due to the broadcasting characteristics of wireless media, wireless communications in the power grid are vulnerable to eavesdropping attacks. Traditional encryption implementation requires high costs in wireless environments. In order to improve the security of data transmission in the power grid, physical layer security (PLS) has attracted widespread attention. However, there are too many idealized and unrealistic assumptions about the security research results in this field. This paper analyzes a physical layer security communication scheme considering the actual erection distance. When up-layer system break by opponent, the natural randomness of the physical channel will play a role in ensuring system security. We conducted simulations and analyzed the impact of the legal user’s erection distance on the physical layer security performance of data transmission in the power grid, and adopted a targeted secure transmission scheme.
Image Flame Detection Method Based on Improved YOLOv3
Authors: Dai Ziteng 
Published: March 2021

Abstract
The general flame detection method is sensitive to environmental changes and has low robustness, so the detection rate is not high. In this paper, a deep learning flame detection algorithm based on the improved YOLOv3 algorithm is proposed to automatically extract flame characteristics; with the help of MobileNet’s deep separable convolution to compress the deep network model, replace the YOLOv3 backbone network with MobileNet, decompose the standard convolution into deep convolution and point-wise convolution, which can effectively reduce the amount of model parameters, Use K-means clustering to generate Anchor Box at different scales, further enhance the detection effect of the model. This paper conducts data analysis experiments on the self-built flame data set. The results show that the optimized algorithm (M_YOLOv3) has achieved 97.34% average precision (AP) on the data set. The flame target detection algorithm proposed in this paper can achieve high-precision and rapid detection of multi-scale flame targets in flame images with different shapes and sizes.
The Annotation Type of Video Case System Built for Pre-Service Teachers in Teaching Skills Training
Authors: Chen Limin 
Published: March 2021

Abstract
The training program of teaching skills is one of the key elements for pre-service teachers who cultivated in school. Due to the advantages of vivid, image video case are admired greatly by teaching classes teachers, and then, there are many video cases support systems for pre-service teachers emerged. However, they have some common problems which are not conducive to training pre-service teachers’ teaching skills, including listing integrated instructional videos and a small amount of video review. Base on this situation, the author built a training case system for pre-service teachers, which can add annotations on fragments, search, evaluate, and share the content as a whole, by using the advanced network and informational technologies, the aim is to help pre-service teachers expand the time and space on training teaching skills, and improve the research efficiency and effects on training.
Research on the Application of Power Grid Big Data in Census Work
Authors: Wang Siyao , Hao He , Liu Yuan , Zhao Yuanyuan , Wang Yimeng , Du Ye 
Published: March 2021

Abstract
Aiming at the problem of “No one at home” in China’s census work, a solution based on big data of power grid to the census work is proposed. With the support of big data technology, models for identifying vacant houses and predicting households at home are established by analyzing the electricity consumption and trends of each house. Besides, a data analysis platform based on power grid big data was developed to provide census staff with data support, such as the vacancy status of residential houses and the probability of residents at home. It has been verified that the research program is effective, which can reduce the workload and improve the efficiency of the census work.
Research on the Construction of City Information Modelling Basic Platform Based on Multi-source Data
Authors: Bi Tianping , Zhou Fei , Yang Xiaoxiao , Zhu Yishu , Diao Xianzhe 
Published: March 2021

Abstract
The construction of city information modelling (CIM) is of great significance for the formation of a new smart city. In this paper, on account of UAV tilt photography, BIM model, Internet of things traffic data, to build a CIM platform under multi-source data, a pilot study was carried out in Tiexi New City. The development platform of Terraexplorer Pro based on the Skyline system is combined with the main technical support of BIM, GIS, and IOT to construct CIM. Its purpose is to achieve static and dynamic, ground and underground, indoor and outdoor integration, and provide prospects for future urban evolution. This study can contribute a reference for other CIM planning, and equip an effective scheme for smart city system planning and urban governance.