bluuebunny/crossref_metadata_2025_split huggingface dataset:
Cost Control of Sub-contracted Projects Based on EPC Petrochemical Engineering
Authors: Li Weifang , Lin Ling 
Published: October 2020

Abstract
EPC model is one kind of scientific and efficient petrochemical engineering management at present in our country. The EPC general contractor should effectively control the cost of sub-contracted construction projects, in the process of EPC petrochemical engineering construction. The aim is to rational use of the limited resources including human, funds and material resources, to obtain greater economic effects and social benefits for the EPC general contractor. The paper studies some impact factors of the sub-contracted projects based on EPC petrochemical engineering. And corresponding solutions are puts forward in the paper, such as paying more attention subcontract management, advocating strict control of direct expense, optimizing construction scheme, and so on. Through the above analysis, some references are hoped to provide some advantages of the cost control of sub-contracted projects for the EPC petrochemical engineering general contractor.
The Characteristics and Tectonic Evolution of Deep Buried Structures in Manas in the Southern Margin of Junggar Basin
Authors: Zhou Xiaojun , Li Yongxu , Wang Xu 
Published: October 2020

Abstract
The Manas anticline belongs to the second tectonic belt in front of the southern margin of Junggar Basin. Due to the multi-stage tectonic compression activity of the Indian plate and the Eurasian plate since the Cenozoic era, the tectonic activity is frequent and the deep tectonic style is complex, so the deep tectonic style of the quasi-south has not been clearly understood. For the study of the deep concealed characteristics of Manas anticline structure, in this paper, we will use the theory of fault-related fold, the geometric analysis and the balanced section forward simulation to construct the detailed structural analysis and simulation of kinematics of structural deformation process of the type section of the Manas anticline based on wide line seismic profile. The study shows that the vertical and upward parts of the Manas anticline are fault-propagated folds and thrust nappe structures while the deep parts are mainly composed of complex structural triangular wedges, burst structures and secondary fold regulating faults. The deformation process is the early low-amplitude fault-turning fold, which is blocked at the front of thrust and forms complex triangular wedge and burst structure. In the late neogene, large thrust faults and fault-propagated folds were developed along the bottom of Anji Haihe formation under the action of strong thrust nappe in the piedmont.
Creative Transformation and Innovative Development of Lingnan Traditional Architectural Culture-Taking the Architecture Reconstruction Design of Liwan District in Guangzhou as an Example
Authors: Zhong Feifeng 
Published: October 2020

Abstract
This paper first discusses the historical background of Lingnan traditional architectural culture, then summarizes the general situation of Lingnan traditional architectural culture from the characteristics of Lingnan traditional architecture and the cultural connotation of Lingnan traditional architecture. Subsequently, taking the architecture reconstruction of Liwan District in Guangzhou as an example, it expounded from the three aspects of micro level, meso level and macro level, and tried to propose a practical model that has practical guiding significance for the creative transformation and innovative development of Lingnan traditional architectural culture.
Inheritance and Innovative Application of Lingnan Traditional Architectural Culture in Architectural Design
Authors: Zhong Feifeng 
Published: October 2020

Abstract
This thesis first discusses the necessity of the inheritance and innovation of Lingnan traditional architectural culture, then analyzes the connotation of Lingnan traditional architectural culture and studies the inheritance of Lingnan traditional architectural culture in modern architectural design, and finally focuses on the integration of Lingnan traditional architectural culture into architectural design Innovative application methods. Through these approaches, Lingnan traditional architectural culture can be better inherited and innovated in architectural design, and it is hoped that it will have some practical guiding significance for the application of architectural designers in architectural design.
Analysis and Evaluation of Energy and Environmental Benefits of New Energy Vehicles
Authors: Nie Yongtao , Cui Dong , Wang Bin 
Published: October 2020

Abstract
At present, China’s oil and natural gas external dependence is increasing, the energy security situation is increasingly grim, the automobile industry is an important reason for the rapid growth of crude oil consumption, the development of new energy automobile industry has become a global consensus. This paper aims to study the development strategy of China’s new energy(NE) vehicle industry through cost-benefit analysis, so as to provide reference for China’s NE vehicle demonstration and promotion vehicle selection and the next step of technology research and development, which has certain reference significance for China’s NE vehicle technology research and development and promotion. From a macro perspective, this paper firstly analyzes the problems existing in the industrialization process of NE vehicles in combination with the current development status of China’s NE vehicle industry. Secondly, the cost-benefit analysis theory is introduced into the strategy research of China’s NE vehicle industry, and the cost-benefit index of China’s NE vehicle development is identified and selected to construct the index system. Thirdly, the ahP is used to analyze the cost-benefit index and predict its development trend. Finally, according to the results of the previous analysis, the policy recommendations for the rational development of China’s NE vehicle industry are put forward, and the development priorities and tasks of China’s NE vehicles are clearly put forward.
Research on Computer Stochastic Simulation of Large Spacing Pillar-less Mining Ore Drawing
Authors: Lin You 
Published: October 2020

Abstract
The new technology of large spacing Pillarless Mining has been widely used because of its advantages, such as timely increase of parameters, improvement of stope ground pressure, and suitable for mining of gently inclined orebody. It has brought good benefits and has high research value. Based on this, this paper first analyzes the mining theory of pillarless sublevel caving method, then studies the computer random simulation test of large spacing pillarless large parameter mining, and finally analyzes the results of the new technology of large spacing Pillarless Mining Based on computer random simulation.
Design of a New PH Meter
Authors: Huang Jian , Bai Zichen 
Published: October 2020

Abstract
STC12C5A60S2 chip with 8-way high-speed 10 bit a / D conversion (250K / s) is used as the core of the device. Through the in-depth study of the simple liquid container system, a set of system which can automatically measure the liquid level and weight and determine the given liquid type (including brine, pure water, milk, white vinegar, etc.) is designed. In the hardware design, ultrasonic module is used to measure the liquid level, load cell is used to measure the weight of liquid, analog signal collected by ad of main control chip is converted into digital signal, and pH sensor is used to measure pH value, so as to determine the type of liquid.
The Effect of Roughness on the Wet Skid Resistance of Tire Tread Compounds
Authors: Mao Chunyu , Li Xiaohong , Liu Songqing 
Published: October 2020

Abstract
The wet skid resistance is the main performance of automobile tires, and the excellent wet skid resistance can ensure the safety of the car. In this paper, 60 mesh sandpaper, 400 mesh sandpaper, 1000 mesh sandpaper and 2000 mesh sandpaper were used to pre-grind the sample, which changed the surface roughness of the sample; measured the dry and wet friction coefficient of the sample, and the measured friction pair was smooth Glass surface, rough glass surface and 180 grit sandpaper surface. The experimental results show that the rougher the surface of the sample and the surface of the friction pair, the greater the wet friction coefficient and the better the wet skid resistance.
Application and development of construction technology of raw soil materials
Authors: Hu Yuewen 
Published: October 2020

Abstract
by recognizing the cultural origin and environmental components of regional raw soil materials, the interaction between the building development elements in traditional culture of living environment and its natural environment, and the cultural extension characteristics in a given area are witnessed. Strengthening the observation and analysis of the texture characteristics of regional raw soil materials and the practical application and development of ramming technology of raw soil materials are helpful to the cultural control of local and modern construction, and the research on the human situation of relevant materials and technologies.
Broadband asymmetric transmission characteristics based on metamaterial in terahertz region
Authors: Zheng Xiaoxia , Shang Guoqiang , Zhao Dongjie , Yang Baoping , Wang Xiaomin , Fan Jinqiang , Ren Siheng 
Published: October 2020

Abstract
In this paper, a multi-layered terahertz metamaterial has been proposed, which consisted of dual-layered substrate and three 6-shaped meta-layered. Numerical results reveal that the structure realizes broadband asymmetric transmission of linearly polarized wave. In particular, this structure realizes a maximum of 0.95 for asymmetric transmission at 6.7THz. Based on the electric fields, we have analyzed the wave conversion of linearly polarized wave and the mechanism of asymmetric transmission effect.
Design and Implementation of method to increase the isolation of boat rocking for ship-borne radar
Authors: Xia Jiafeng 
Published: October 2020

Abstract
The influence of ship rocking is needed to conquer, while capturing and tracking the targets on servo system of ship-borne radar. Aimed at solving the problem that the target can’t be captured through the isolation on the position loop, A new method was proposed that increase the feedback gyro and feedforward gyro in the manual model of the earth coordinate system. The ability of isolating ship shake has significantly improved. These greatly reduced the difficulty of narrow beam ship-borne radar capturing target.
Research on Assembly Automation Technology of New Prefabricated Transformer Prefabricated Transformer
Authors: Pan Peifeng , Yang Zhiyi , Li Longda , Zhu Xiaoying , Wu Tao 
Published: October 2020

Abstract
The technical field of transformers discussed in the paper relates to the production of lead wires, especially a factory-made prefabricated transformer with a new lead wire; its transformer includes a transformer main body and a new transformer lead wire connected to the main body of the transformer. The transformer lead wire includes a transformer lead wire, and a copper-aluminium terminal, a heat shrinkable tube, a composite insulator, a grounding test ring, a lightning arrester lead assembly, and a C-clamp are arranged in order from one end to the other end. The design of the new type lead wire transformer assembly can completely realize the factory prefabrication of the transformer lead wire, the manufacturing process is simple, and the construction time on site can be greatly reduced and the construction efficiency can be improved.
Ultimate Strength Analysis of Three-Way Pipe Considering Plastic Reinforcement Effect
Authors: Su Wei , Luo Wenhao , Dong Xianshan , Liu Renhuai 
Published: October 2020

Abstract
Considering the plastic reinforcement effect in materials, the plastic limit load of the three-way structure is analyzed. ANSYS commercial finite element software is used for numerical simulation. According to the results, the paper discusses the influence of the plastic reinforcement effect on the pipe’s plastic ultimate load and failure mode. And the structure is further analyzed to verify the theory and design ideas in actual engineering. For improving the design and safety assessment of the three-way structure, the results provide a theoretical basis and a numerical reference, and the finite element method is economical than the experimental method. At last, it satisfies the accuracy requirements of engineering.
Experimental Study of Strain Clamps Crimped Under Unbalanced Condition
Authors: Li Junhua , Bian Meihua , Liang Shirong , Zhang Xingsen , Lu Zhanqiang 
Published: October 2020

Abstract
In order to clarify the relationship between the efficacy loss of strain clamp joints and the crimping quality, three groups of clamp joints, crimped under unbalanced conditions at both ends, naming NY-240/40, NY-400/35 and NY-630/45 were selected and then subjected to tensile tests and X-ray inspection. After a detailed analysis of the experimental results, it can be seen that under the condition of unbalanced crimping quality, the efficacy loss all occurred on the side with better crimping quality, which provides an instructive reference for the crimping technique of strain clamps in actual project construction.
The Overall Design and Application of Safety Protection for Industrial Control Systems
Authors: Wu Peng , Wu Maopu , Zhu Jun 
Published: October 2020

Abstract
According to the industrial Internet adaptive architecture security system, following the design principles of standardization, overall layout, and top-level planning, it adopts the defense-in-depth concepts of “vertical layering and horizontal partitioning”, “boundary control, intra-domain monitoring and auditing, and overall centralized management and control”. Aiming at the network security protection of enterprise industrial control systems, it is focused on breakthroughs in technologies of multi-element acquisition and fusion, defense-in-depth security analysis, visual integrated situational awareness. An industrial control network security integrated protection platform has been constructed to realize real-time perception of industrial control security risks and accurate research and judgment of threats. After practical application verification, it is meets and suitable for the safety protection requirements of industrial control enterprises, and provides reference value for the construction of industrial control network security protection in the shipbuilding industry and other industries.
Quality Estimation Method of Heavy Vehicle Based on Speed Change
Authors: Hu Yi , Xu Yongbing , Liu Li , Jin Bihui 
Published: October 2020

Abstract
The heavy-duty vehicle has a wide range of mass changes from no-load to full-load, which affects the shift control of the heavy-duty vehicle transmission. Therefore, the quality of heavy vehicles needs to be identified. The traditional taxiing method needs to know the road rolling resistance coefficient and air resistance coefficient. Acceleration sensor-based automobile quality identification methods require additional sensors on the car, which increases the cost of the car. In this study, based on the principle of function conversion and vehicle longitudinal dynamics, a method for estimating the mass of a heavy vehicle based on changes in vehicle speed is proposed, in the case of unknown vehicle characteristic parameters. In this study, after calculating the air resistance coefficient of the vehicle by the coasting method when the vehicle is under no load, the rolling resistance coefficient of the vehicle is decoupled based on the functional principle and the least square method during the flat road taxiing phase of the heavy vehicle. Based on this, the vehicle longitudinal dynamics model is established, and the mass of the heavy vehicle is estimated by fitting the vehicle speed with the Newton’s global algorithm. The research results show that the algorithm of this research can calculate the rolling resistance coefficient of the vehicle in real-time during the taxiing phase of the vehicle, with a calculation accuracy of more than 97%, and the online real-time estimation of the vehicle quality, with an accuracy of more than 95%. The algorithm of this study provides a new solution for online estimation of heavy vehicle driving quality, and can be used for automatic shift control of heavy vehicles.
Research on Order Analysis Method of Vibration Signal of Rear Axle Main Reducer
Authors: Huang Zhichao , Yu Weiqing , Liu Juping , Hu Yihua 
Published: October 2020

Abstract
As a key component to increase torque and reduce rotation speed in automobile transmission system, the quality of final drive assembly is related to the working performance of the whole transmission system. As the core component of the rear drive axle of an automobile, the main reducer of the automobile bears the functions of decelerating and increasing the driving torque. Its quality directly affects the safety and comfort of the automobile. The transmission stability and transmission noise of the main drive bevel gear of the main reducer are one of the important factors that affect the performance parameters of the whole system. The order analysis can transform the equal time sampling of vibration signal into equal angle sampling, and transform the non-stationary signal in time domain into the stationary signal in angle domain. Then, the frequency of rotation speed and the position of each harmonic can be determined by spectrum analysis. Starting from the function and structure of the main reducer of the automobile rear axle, this paper explains the necessity of analyzing its vibration signal, and expounds the mechanism and source of the vibration of the main reducer.
Structural Optimization of Vehicle Turbocharger Rotor
Authors: Liu Zhihao , Wang Renren , Cao Fang , Shi Pidong 
Published: October 2020

Abstract
A solid-body model of the rotor system of the turbocharge for light trucks is built. The influence of the oil film bearing support and the material internal damping of the rotor system is studied by using finite element method (FEM), the parameters of the rotor shaft diameter are optimized. The results show that the material internal damping of rotor and the oil film bearing support have complex influence on the dynamic behavior of the rotor and which reduces the running stability of the rotor.
Design and optimization of the frame of the air-driven electrostatic spray locomotive
Authors: Zhao Chunzhao , Zhang Chengliang , Li Ying , Bo Chunzeng , Hao Guangfa , Dou Hongbin 
Published: October 2020

Abstract
Aiming at the problem of excessive vertical bending and deformation of the frame due to the excessive weight of the air-driven electrostatic sprayer when fully loaded, and the crossbeam of the frame is prone to deformation. In this paper, the design and research of the frame are based on the mechanical principle, the Solidworks software is used to model the frame, and the ANSYS software is used to perform static analysis on the frame of the air-driven electrostatic sprayer when fully loaded, so as to obtain the stress and displacement of the frame. Verify the rationality and correctness of the finite element analysis. Finally, with the maximum deformation as the constraint, the lightweight design of the frame structure is carried out to complete the structural optimization of the frame.
A design of Automatic UAV Dock Platform System
Authors: Zang Zhibin , Ma Jun , Li Chaoyang , Wang Haoran , Jing Ruirui , Shi Yongxiang 
Published: October 2020

Abstract
At present, most unmanned aerial vehicles (UAVs) are powered by traditional aero modelling lithium batteries, which have poor endurance and cannot operate continuously for a long time. It greatly limits the application fields of UAVs. To tackle this problem, we design a fully-automatic UAV docking platform that can work under no human situation and assistance to charge the aircraft with insufficient power to help the drone extend its battery life. It also provides an implementation solution for a fully automatic drone docking platform with wireless charging, UAV takeoff and returns, auxiliary positioning, and relay communication. The system mainly includes apron part, docking platform protective shell, solar panel, power conversion equipment, wireless charging base, satellite positioning and communication module, radio positioning signal generator, and radio relay communication module, etc. The power system of the apron part uses electric pushrods.
Design and Simulation of vehicle antenna in different frequency band
Authors: Hu Senkang , Fu Shuai 
Published: October 2020

Abstract
In order to meet the needs of a variety of automotive communication services, vehicle antennas working in multiple frequency bands are emerging. It promotes the development of antenna in the direction of multifrequency and miniaturization. Based on the above research background, this paper designs a vehicle antenna for the requirements of mobile communication frequency band. The antenna consists of a half-t monopole and a half cone monopole, which are vertically placed on a metal floor. T-shaped branches mainly work at low frequency, while cone-shaped branches mainly work at high frequency. The tapered branch is used to improve the impedance matching, increase the bandwidth of the antenna, and the antenna miniaturization is realized by using half reduction technology. The antenna is processed and measured, and the working frequency bands are 720MHz-960MHz and 1.6GHz-4GHz, covering amps, GSM, LTE and 5G.
Design of wireless monitoring system for greenhouse based on LoRa
Authors: Wu Jie , Tang Xiaozun , Lei Jinglan 
Published: October 2020

Abstract
With the wide application of Internet of Things technology, information collection systems based on Internet of Things technology have been gradually applied to the construction of smart agriculture, and the remote monitoring system of greenhouse environment is an example. Some technologies, such as Zigbee and Bluetooth, are widely used, with short communication distances, complex networking, low network reliability, and no coverage of large area applications. In this paper, an information acquisition system based on LoRa technology is designed and implemented in the light of the application needs of greenhouse sheds and the advantages of long distance and low power consumption of LoRa technology.
The structure design of piezoresistive pressure sensor based on MEMS
Authors: Zhou Yongjun , Han Wenman , Shi Shuai , Zhang Qiwei , Guo Tao 
Published: October 2020

Abstract
This paper mainly designed the basic structure of the piezoresistive pressure sensor based on MEMS, analysed and optimized the structure size of the sensor, verified the rationality of the structure by finite element modelling. Through theoretical and optimization analysis, the main structural parameters of MEMS are determined.