bluuebunny/crossref_metadata_2025_split huggingface dataset:
Heat transfer analysis and thermal bridge elimination of composite thermal insulation exterior wall adjacent to steel column
Authors: Gong Chao , Wu Zhaoqi , Ke Donghai 
Published: June 2020

Abstract
Steady-state heat transfer of built-in composite insulation walls close to column had been investigated in this paper by using finite element analysis (FEA). Firstly, the thicknesses of the wall and the thermal insulation were determined according to energy saving requirement of 75%. The heat transfer of the wall with the commonly used details was studied and it was found although adding local insulation on the outside of the column can improve the heat flow concentration, there is still a thermal bridge at the junction of the wall and the column. Then the influence zone of the thermal bridge was investigated and a construction measure of extending the local insulation width was proposed based on the analysis results. Lastly, the partial thermal insulation extended widths for different column sections and thermal insulation were suggested to break thermal bridge completely, which can meet the energy saving requirement of Beijing government.
Research on Ultrasonic Detection of Air Spring Rubber Debonding based on CEEMDAN
Authors: Hou Dawei , Wang Xuemei , Ni Wenbo 
Published: June 2020

Abstract
The SYS510e air spring of electric multiple unit (EMU) is the metal and rubber bonding structure. In order to carry out ultrasonic debonding detection on the tapered bonding interface, after correcting the interference caused by sectional thickness change, the complete ensemble empirical mode decomposition with adaptive noise (CEEMDAN) and cross approximate entropy (ApEn) method was applied to analyze time frequency characteristics of echo under different bonding conditions. Five numbers of cross ApEn features were extracted to identify rubber debonding defect. These features are more stable and show more significant discrepancies between bonding and debonding states. Then BP neural network was trained to identify the debonding state of the tapered interface of air spring. The results of ultrasonic C scan show that the ultrasonic detecting method based on CEEMDAN and cross ApEn can accurately and effectively identify the location and contour of rubber debonding defects, and meet the needs of the debonding detection of SYS510e air spring of EMU.
Unanticipated Fault Detection Technology for Tip/Tilt Mirror Control System of Large Aperture Telescope
Authors: Wu Jiajia , Yang Shihai , Li Yun 
Published: June 2020

Abstract
Large Aperture telescopes are usually placed in some special environment. Once a malfunction occurs, it’s inconvenient for maintenance. This paper presents those unanticipated failures in tip/tilt mirror control system of large aperture telescopes, and tries to propose a detection strategy based on BP neural network. Firstly, the paper analyses the failure mechanism of the software and the hardware of the tip/tilt mirror control system. Then the known fault data are used to train the BP neural network in order to obtain an accurate detection model. Finally, the unanticipated data are mixed into the known fault data, and the model is used to detect unanticipated faults. The simulation results show that the model can be used to detect the unanticipated fault in tip/tilt mirror control system effectively.
Development of Vehicle Fault Maintenance System Based on Unity3D
Authors: Zhang Xiao , Chen Fuen 
Published: June 2020

Abstract
With the rapid development of computer and artificial intelligence technology, the application scene of technology has changed from two-dimensional space to three-dimensional space. In the field of vehicle fault maintenance, virtual reality technology can provide a variety of solutions. With the increasing technical content in armored vehicles, it is urgent to train a group of professional maintenance personnel for maintenance operations. This paper analyzes the common problems of armored vehicle system and the method of simulation maintenance. It uses 3d max and Maya software to model and introduce the model into Unity3D to build the scene. Finally, C# language and VRTK were used to write scripts to realize human-computer interaction, and the maintenance system was constructed through testing. By constructing this system, various practical problems in the maintenance training of armored vehicles are solved.
Research on Partial Discharge State Detection in GIS Based on Internet of Things Technology
Authors: Zhang Zhaohui , Yang Jinggang , Jia Jun , Hu Chengbo , Liu Ziquan , Li Yujie 
Published: June 2020

Abstract
With the continuous development of the Internet of Things technology, the Internet of Things technology can be used in many aspects of the smart grid. Apply advanced Internet of Things technologies in substation GIS, including sensing technology, network communication technology, intelligent decision-making technology, automatic control technology, and energy and power technology, etc., and combine them closely to form a coordinated organic system. At present, partial discharge is the main cause of equipment insulation deterioration in substations. Partial discharge detection and evaluation has become an important means of monitoring insulation conditions. The monitoring of GIS partial discharge conditions in substations can help find insulation defects in GIS in time, avoid insulation failures, and improve the safe operation of GIS. It is possible to achieve GIS insulation condition maintenance, reduce power outage time and save maintenance costs. The effective application of the Internet of Things technology in the GIS partial discharge state detection system of intelligent substations can effectively improve the construction of modern intelligent substations in China.
Development and Practice Development and Practice of Comprehensive Water Control Technology for Volcanic Bottom Water Gas Reservoir in Xushen Gas Field
Authors: Kang Wu 
Published: June 2020

Abstract
Xushen gas field mainly exploits volcanic reservoirs of Yingcheng Formation. The gas reservoir type is mainly the bottom water gas reservoir. The number of water wells and water production are increasing year by year, which affects the development effect of the gas field. In view of the increasingly severe situation of water invasion and water production in gas fields, water invasion evaluation and comprehensive water control of gas reservoirs have been carried out, and a three-level evaluation process of water invasion qualitative identification, water invasion quantitative evaluation and water invasion impact quantitative evaluation has been formed. Based on the results of water invasion evaluation, combined with the characteristics of gas reservoir connectivity, structure, gas-water distribution, and water production, the three-level evaluation process has been formed. The integrated water control mode of the block (volcanic body) and single well water control mode by classification have been applied in each block, and good results have been achieved, which effectively supports the rational development and long-term stable production of bottom water gas reservoirs in Xushen gas field.
Evaluation of horizontal well productivity in the abnormal high pressure and low permeability gas reservoir in the west of the South China Sea
Authors: Ma Yongxin , Li Mingjun 
Published: June 2020

Abstract
Based on the actual geological reservoir characteristics of an abnormally high-pressure gas reservoir in the western South China Sea, and considering reservoir stress sensitivity, a single-well model for horizontal wells was established to study the law of non-steady-state productivity of horizontal wells. Based on the established single well model of horizontal wells, and considering stress-sensitive conditions, the rational allocation of single wells is studied. The research results show that the initial unobstructed flow rate of the horizontal well is high and it decreases rapidly; the non-resistance flow considering stress sensitivity is lower than the non-resistance flow without considering stress sensitivity. The difference between the two gradually reaches the maximum at the beginning of the well, and the difference gradually decreases at the later stage; there are interrelationships and constraints between single good production, stable production time, and final production.
Research on recoverable reserves of single well control in Daqing peripheral oilfield
Authors: Xue Rui 
Published: June 2020

Abstract
This paper analyzes the law of developed single well control recoverable reserves in the Daqing peripheral oilfield through a large number of dynamic and static data of this area. Based on the influencing factors of single well control recoverable reserves, the empirical formula of exploiting Putaohua oil layer and Fuyang oil layer in Daqing peripheral oilfield was established. The formula has high precision and can meet the needs of forecasting area recoverable reserves.
Research on Educational Management Strategies of College Students, who was born after 2000 in Energy Major
Authors: Fang Zhi 
Published: June 2020

Abstract
The new generation of post-00s has quietly entered university campuses, and higher education faces new challenges. This article takes undergraduates majoring in energy as the observation object. Through individual interviews, questionnaire surveys, activity evaluations and other methods, we analyze and study their growth background, ideological behavior characteristics, and finally we propose targeted education management strategies.
Research on Intelligent Manufacturing of Coal Machine Equipment Based on Computer Informatization Coal Machine Equipment
Authors: Zhang Jiuqin 
Published: June 2020

Abstract
Coal preparation can remove most of the impurities in raw coal, reduce ash, and improve coal quality. Reducing the ineffective transportation of vermiculite, reducing the environmental pollution caused by burning coal, and providing the basic guarantee for the further clean and efficient use of coal are the foundation of clean coal technology. The domestic status of the automation technology of the coal preparation plant is introduced, and the issues needing attention in the automation technology of the coal preparation plant in China are introduced. Briefly describe the main contents of the current coal preparation plant automation technology and the issues needing attention in the control loop, and the possible consequences of an unreasonable design of the coal preparation plant automation system. By analyzing the development trend of the automation technology of the coal preparation plant, the broader development prospects of optimal control and video surveillance substation technology are expected. The scientific development of the coal preparation plant is to make full use of advanced coal preparation technologies, processes and equipment, improve the raw coal selection rate, continuously improve and improve the process, develop and introduce new efficient and high-yield washing equipment, and improve automation, professionalism, and informationization. And intelligence
Research and Application of Fine Intelligent Injection Technology of Cable Type in Dagang Oilfield
Authors: Wang Wentao , Zhang Hongwei , Yang Tiancheng , Shu Chang , Hu Jintong 
Published: June 2020

Abstract
Dagang oilfield belongs to typical multi-layer system, heterogeneity of complex fault block reservoir, reservoir and the large difference of physical property of crude oil, water, etc, the longitudinal permeability difference is obvious, separate injection interval is not detailed, The existing bridge eccentric note, bridge concentric injection technology can’t meet the needs of the fine water injection, real-time measurement and control because of drift, well depth, pressure and other factors, and there is poor adaptability, measuring problem of long time and low efficiency. Cable type fine intelligent water injection technology in underground intelligent water distributor, the ground controller as the core tools, cable as transmission medium, the computer network communication technology, intelligent control technology combined with oil field water injection demand, developed a new and reliable water injection system, realized the layered injection allocation under different deviation, full automatic control and monitoring data, and direct reading test. The technology in the implementation of 5 Wells in dagang oilfield, the implementation of maximum deviation 80 °, the maximum depth of 3661.52 m, the highest water flooding pressure 25 mpa, construction success rate reaches 100%, downhole test times 5 Wells, inspection accuracy of 100%. The results show that the cable type intelligent water flooding technology can not only realize downhole data real-time monitoring, real-time traffic regulation, and can complete the packer direct reading test, and the measurement process is reliable and efficient, at the same time solve the high Angle well, horizontal well can’t test the technical problem, provides the high Angle well, horizontal well fine water injection technology support.
The Analyses of 45-Degree Bunsen Burner Test and Oil Burner Test for Cargo Liners
Authors: Wu Shuang , Lv Zhengye , Ding Kun , Huang Weixing , Li Gen , Hou Zhenguo , Ni Junfei , Ke Yichun , Huang Hongzhai 
Published: June 2020

Abstract
Since the last century, the challenges caused by fire prevention of cabin and cargo compartment materials were increased year by year. As one of main part for cabin and cargo compartment materials, the flame penetration resistance ability of cargo liners was become a research focus. However, the 45 degree combustion test and oil burner test (which were used to test flame penetration resistance ability of the cargo liners) are quite similar in experimental scale and experimental conditions, which can cause great trouble for the research of the flame penetration resistance ability of cargo liners. Thus, the differences between 45 degree combustion test and oil burner test were discussed in this paper.
A model-driven system interface design method based on MVC pattern
Authors: Feng Xiaoxia , Liu Wansheng , Jiang Yu 
Published: June 2020

Abstract
In Electronic optical tracking system human-machine interface design process is used to simulate the console more digital implementation, not for a variety of interface between model design and model conversion problems and analyzing the availability of this situation, this article based on the interface of model-driven development research field, puts forward a new model based on the drive and friendly human-computer interaction interface design framework, studied how the presentation model set and using the MVC pattern of the organization’s program tools, in addition to the view model independent from the general MVC pattern, add visual information structured design module. At the same time, the feasibility and advantages of the new framework are proved by an example.
The evaluation and comparison on different types of resident doctors in training through DxR Clinician system
Authors: Dong Leilei , Li Wei , Ma Dedong , Lv Chenguang , Chen Cai 
Published: June 2020

Abstract
Compared with the traditional problem-based learning (PBL) mode, computer-based case simulations (CCS) are more advanced in aspects of clinical reasoning, critical thinking and clinical thinking. CCS program, Diagnosis & Reasoning (DxR) Clinician, has been used for assessment of clinical diagnosis and treatment skills in more than 300 medical colleges and universities around the world. However, the evaluating effectiveness and practicability of this software continue to be uncertain and ambiguity in China. Moreover, the influence factors of the DxR evaluation score are still remain indefinite. The purpose of this study was to investigate the impact of training years, professional background and educational background on DxR scores in order to better improve the clinical skills of residents. Eighty one resident doctors were selected as the experimental subjects to conduct the clinical skills assessment with DxR Clinician. The relationships between residents’ scores in DxR Clinician components (overall score, diagnostic score, and management score) and their training years, professional background and educational background were analysed using simultaneous regression. The results showed that years of training, professional background and educational background are potential influence factors of DxR evaluation score. The average DxR Clinician scores in this study are generally lower than foreign research, so we should strengthen resident standardized training to improve our clinical skills.
Estimation of Queue Length at Signalized Intersections based on Electronic Police Data
Authors: Wang Hao , Ju Jianmin , Wu Zhixin , Huang Meixin 
Published: June 2020

Abstract
Aiming at the problems of complicated traffic data detection environment in China and the larger calculation error of queue length at signalized intersections, a model of queue length estimation at signalized intersections based on electronic police data was studied. By analyzing the characteristics of travel time in the electronic police data, the jump position is extracted and the number of parking times is divided. Take the intersection of Zhongguan Road and Donghuan North Road in Ningbo as an example for simulation verification and analysis. Simulation results show that the accuracy rate of the model is over 83%, and the accuracy rate during peak hours is 90.8%, which has good adaptability.
Investigations on Linear Manoeuvres of Underwater Towed Cable in Current
Authors: Gong Liangkui , Wang Wenkai , Li Shizhen , Liu Yanjun , Yu Hui 
Published: June 2020

Abstract
In this paper, a numerical method for dynamic characteristics of cable in marine linear towage is proposed. The governing equation of the towing system is established based on the lumped mass method. The continuous dynamic characteristic partial differential equation is obtained by the discretization of cascade nodes. The equation is solved by the finite difference time domain method. Through numerical simulation, the tension variation curves and cable response configuration under three different operating conditions-when there is no current, along with and against sea current directions-are given respectively, which can be used for dynamic load estimation and motion trajectory prediction in towed-array systems. The comparison between the numerical example results and the experimental demonstrates the validity of the method and is of practical significance for improving maritime safety and operational efficiency.
Research on Ship Management ERP Integrated Platform System of Offshore Engineering Exploration and Scientific Research Enterprise
Authors: Shan Zuolin 
Published: June 2020

Abstract
This article reviewed the marine exploration and scientific research enterprises in the process of marine exploration, to control the ocean fleet, including personnel, materials, finance, and other aspects of a centralized control, but due to the special characteristics of the marine exploration and scientific research industry industry, Design a comprehensive management platform specifically for marine engineering exploration. This platform can effectively control the exploration of ocean-going marine fleets. The purpose of this article is to efficiently manage the marine engineering activities. This article studies a large amount of data and based on the management of related enterprises, a comprehensive ship management and control ERP platform system has been developed. This system can effectively control the ocean fleet, and it is convenient for scientific research units to manage and control the entire process of marine exploration, effectively control financial costs, and can more efficient management of offshore engineering exploration activities, this system can achieve the characteristics of high efficiency.
Simulation Study on the Effect of Uneven Fuel Injection of Each Hole on the Combustion Process of Ethanol-Diesel Blend Fuel
Authors: Liang Yu , Zhou Liying 
Published: June 2020

Abstract
The small diesel generator has been widely used. When compared with vehicle diesel engine, it has stable working speed, small load variation range and lower requirements for fuel performance, so the fuel ethanol can be more easily applied for the diesel generator. The blend fuel containing 5% ethanol and 95% diesel (E5D95) is tested on a generator powered by F186. A 3D combustion model based on the injection position and angle of each hole of the diesel engine is established and verified by using the test data. Based on the measured injection rate of each hole of the 4-hole diesel injector, the even injection rate of each hole and the measured uneven injection rate of each hole are made as the injection settings for the combustion simulation. The effect of the uneven injection rate of each hole on the combustion process of ethanol-diesel blend fuel is comparatively analyzed. Due to the uneven injection of each hole, the ignition starting point is moved forwards, the maximum pressure and temperature in the cylinder are higher, NO generation is larger, soot generation is slightly smaller, and the emission of HC and CO is higher.
Research on polymer flooding inefficient oil well treatment method
Authors: Zhang Liying 
Published: June 2020

Abstract
During the development of polymer flooding, due to factors such as the heterogeneity of the reservoir, some inefficient oil wells appeared in the area. In order to reduce the effect difference between oil well groups and improve plane contradictions, we The division of the inefficient oil wells and the analysis of the causes, and adopting effective treatment countermeasures, this method promotes the effectiveness of the inefficient oil wells, can improve the overall development effect of the polymer flooding, and the method further perfects the polymer flooding comprehensive adjustment technology.
Research and Development of the First Generation of Multifunctional Home Fitness Recliner
Authors: Wang Shuai , Chen Xingwang , Peng Shuhui , Han Lidong , Zhang Ye , Zhou Yunkun , Xiang Meng , Yang Huilan 
Published: June 2020

Abstract
The first generation of multifunctional home fitness recliners is a kind of home-use portable fitness equipment that coexists with multiple functions and can be easily adjusted for strength. The fitness equipment adopts the bionic “fish-shaped” design, and uses the principle of morphological bionics to achieve the simplicity required by design and meet today’s aesthetics. While improving the aesthetics of the design equipment, it also meets the requirements of ergonomics, thereby improving the user’s sports experience. The device uses polyformaldehyde plastic, ABS plastic, shell ABS plastic (natural plastic in the groove), polyamide fiber, PVC artificial leather, plywood, sponge, rubber sponge and other plastic materials that meet national standards. 35 # steel, cold rolled steel rectangular tube, spring steel, tungsten steel and other materials that meet various technical indicators. Under the premise of safe use of equipment, multiple exercise uses can be realized.
Fluid simulation analysis of gas stove based on multi-jet cutting circle
Authors: Yang Rongqian , Zhao Lida , Zhang Jiankang 
Published: June 2020

Abstract
This project aims to apply the principle of multi-jet cutting circle to transform the gas stove, improve the combustion efficiency of the gas stove, reduce the proportion of exhaust gas in the exhaust gas, and reduce the exhaust gas pollution of the gas stove. In this paper, Ansys software is used to conduct fluid simulation for gas stoves with different number of pipelines, and the influence of different number of ejector pipelines on combustion products, temperature and other results is obtained.