bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research on Vehicle Routes Optimization for Emergency Materials Distribution
Authors: Zhang Jiashan , Lin Xiaoqun 
Published: September 2020

Abstract
Disasters such as earthquake, flood and diseases are sudden and urgent. In order to improve the efficiency of emergency materials distribution, scientific decision on vehicle routes plays an important role. This article assumes that the emergency materials required by each disaster site are allowed to be delivered in advance but not delayed. Considering vehicle maintenance and driver’s continuous working ability, taking the distribution cost as the objective function, a mathematical optimization model for the problem is established. Based on ant colony algorithm, optimization algorithm is designed to solve the model. Then, effects of different optimization algorithms were compared. The application shows that the method operates quickly and the results are rational, which can provide scientific basis for decision-making.
Comparison of Material Composition and Road Performance of Different Natural Asphalts
Authors: Hui Wei , Fan Liang , Li Yongzhen , Liang Hao 
Published: September 2020

Abstract
Because of the differences in material composition and structure, different natural asphalt will lead to different road performances and technical approaches. Based on years of research data, the composition and characteristics of different natural asphalt are reviewed. It is considered that the difference of performance of different natural asphalt is closely related to asphalt content and ash content. Aging property is related to oil content and microstructure of asphaltene. Because the mineral composition of lake asphalt is mostly volcanic ash, it shows different modification effect from natural rock asphalt, and has more advantages in the comprehensive performance of asphalt mixture, especially in low temperature performance and fatigue resistance.
Study on Problems and Countermeasures of Clean Heating in Rural Areas of North China—a Case of Shandong Province
Authors: Qiao Liang , Liu Doudou , Xu Xiang , Yuan Xueliang 
Published: September 2020

Abstract
Clean heating is an important part of the transformation of new and old driving forces and the revitalization of rural areas. Speeding up the promotion of clean heating is an important measure to improve rural public service facilities, guarantee and improve people’s livelihood. This paper introduces the development status of clean heating in rural areas of Shandong Province, and the target tasks to be completed in 2020 and 2022. Through household survey, a questionnaire survey was conducted among 910 clean heating users in rural areas of Shandong Province. Problems of clean heating in rural areas of Shandong Province are pointed out, and countermeasures and suggestions are put forward accordingly.
The Exploration of the Path of the Guangdong-Hong Kong-Macao Greater Bay Area Sports Town Facilitating Rural Rejuvenation
Authors: Wan Fada , Wang Xiange , Li Jinji 
Published: September 2020

Abstract
The development of sports towns in Guangdong-Hong Kong-Macao Bay area should keep pace with the strategy of rural revitalization, and contribute to the revitalization of rural industry, Talents, culture and ecology. It is concluded that the sports towns have five missions of rural economic, social, political, cultural and ecological civilization development. The Guangdong-Hong Kong-Macao Bay area has a Superior Sports Industry Foundation, a good sports competition atmosphere, and a diversified sports culture, the revitalization of rural industry can be promoted by building sports brand events in Guangdong-Hong Kong-Macao Bay area, developing sports characteristic industry chain with sustainable development, one main and many auxiliary sports items, and establishing sports industry cooperation and exchange mechanism with the participation of government, enterprises and people in the bay area We should attach importance to the development of human resources, the training of local talents, the work of sending talents to the countryside, the gathering of talents from small towns, the promotion of the integration and development of traditional culture and sports culture, the promotion of the spread of sports culture and the revitalization of rural culture Improve the utilization rate of natural resources, improve the level of ecological construction, promote the town ecological system construction, ecological facilities construction and ecological protection behavior guide to help the rural ecological revitalization.
Simulation of Land Use Changes in Jiaodong Peninsular based on the Logistic-CA-Markov Model
Authors: Wu Li , Zhu Mingming , Zhang Guorui , Yang Rui 
Published: September 2020

AbstractBased on Landsat TM/ETM+ images acquired in 2000, 2005, 2010 and 2015 respectively, land use maps of Jiaodong Peninsular were created to analyze the characteristics of land use change. Then the Logistic-CA-Markov model was selected to simulate the spatial-temporal patterns of land use changes in 2010, 2015 and 2020 at 100 m spatial scale and five-year time interval. The results showed that: (1)During the period 2000-2015, areas of farmland decreased continuously, while urban area, rural settlement and independent industrial-mining increased continuously and rapidly; (2) Ten impact factors were chosen as the independent variables of Logistic regression analysis to establish eight logistic regression equations for eight land use types; (3) As the Logistic-CA-Markov model has a good performance in the simulation of land use maps in 2010 and 2015, it was further used to simulate land use change in 2020. (4)The simulation results showed that farmland, forest would decline during 2015 and 2020; Urban area would still increase.
Design of a Kind of Low-Cost and High-Precision Power Measuring Device
Authors: Pan Dawei 
Published: September 2020

Abstract
A kind of low-cost and high-precision power measuring device is designed, which is realized by hardware circuit and embedded software. The signal acquisition circuit, switching value input and output circuit, communication circuit of the device are analyzed. The power calculation program, storage program, timer interrupt program and communication program are described. The device has been applied in the field, and the application shows that the device meets the requirements of industrial level and has the merits of low cost, high precision and high stability.
Development and Application of a New Type of X-ray Fluorescence Online Grade Analyzer Based on STM32
Authors: Cheng Xiaozhou , Liu Zhiyuan 
Published: September 2020

Abstract
In order to achieve more accurate measurement of the pulp element grade in the beneficiation process, a new generation of nuclear-free X-ray fluorescence online grade analyzer was developed based on the previous generation of nuclear online grade analyzer. This new X-ray fluorescence grade analyzer is developed based on the STM32F407 control chip. It adopts a measurement structure that combines X high voltage light tube and semiconductor detector. Its technical structure and analysis principle are: X-ray tube and semiconductor detector constitute a measurement unit. The X-rays excited by the X-ray tube are irradiated to the surface of the slurry to be measured, and the semiconductor detector receives X-characteristic fluorescence excited by the element to be measured in the slurry. The main control unit receives and processes the data signals uploaded by the semiconductor detector. Send the measured element count rate to the upper computer of the industrial computer through serial communication. Finally, the higher-level software calls Matlab mathematical analysis tool while using BP neural network to perform data modeling analysis and obtain the grade value. According to a field industrial test conducted at a ore dressing plant in Shaoxing, compared with the previous generation nuclear grade analyzer, the measurement accuracy and operating stability of the new X-ray online grade analyzer have been significantly improved, and various parameters All met the design requirements for development.
Mathematical Modeling and Experimental Verification of Oil-Gas Spring
Authors: Chen Yijie , Zheng Guanhui , Han Xiaoling , Zhang Xu , Xu Mengyan 
Published: September 2020

Abstract
A method for studying the flexural deformation of the damping valve when subjected to a local uniform load was proposed, according to the physical model of valve platevalve platevalve platevalve platevalve platevalve platevalve plate and the related theory of thin plate mechanics, the differential equation of the deformation potential energy of the valve plate was solved, and the analytical formula of the flexural deformation under the local uniform load was derived. Further, combining the analytic formula of flexural deformation of the valve plate, the analytic formula of the annular gap throttling and the actual gas state equation, the mathematical model of the indicator characteristic of the hydro-pneumatic spring was derived. Through programming simulation, the relationship between the elastic force of the system and the total output force with displacement were analysed, compared with the test data, the correctness of the mathematical model of the hydro-pneumatic spring was verified, and the theoretical basis was provided by analytical formula of valve plate deformation.
Design and Implementation of Elevator WeChat Public Supervision System based on SOA
Authors: Chen Jie 
Published: September 2020

Abstract
A WeChat public supervision system for elevator maintenance was designed aimed at the problems of elevator maintenance status monitoring and elevator safety supervision. Combined with “Internet +” and big data supervision, aiming at the loose coupling characteristics of the system, using the unified development technology system (J2EE), introducing the concept of SOA layered and distributed system architecture, and finally the unified application service management platform was established. On this basis, the unified management of the elevator application management system was realized. The elevator information supervision system has the characteristics of public participation supervision, traceability of maintenance records, and benigh interaction between supervision and the public, which will contribute to the further development of intelligent elevator supervision.
Control of a New Cycling Rehabilitation Robot Based on Fuzzy PID
Authors: Jiang Dawei , Shi Guoquan , Pang Zaixiang , Li Shuang , Tian Yuan 
Published: September 2020

Abstract
For completing the standardized rehabilitation training of the affected limb based on the lower limb rehabilitation training robot system, it is designed that a lower limb rehabilitation robot control system based on fuzzy PID control method to realize stable and accurate control of the rehabilitation training process. First of all, this paper analyzes the ranges of motion of human hip and knees, and a single degree of freedom lower limb rehabilitation training robot system based on the belt transmission principle is designed. Then the fuzzy PID control is analyzed. And the Matlab is used to simulate the passive rehabilitation mode of the lower limb rehabilitation training robot system under different control strategies. The designed rehabilitation training test shows that the control system of the lower limb rehabilitation robot based on the fuzzy PID control method has a small speed overshoot, high control accuracy and smoother operation.
Stress Analysis of the Solar Cells in PV Modules
Authors: Li Zhiqi 
Published: September 2020

Abstract
In this paper, an analytical solution for evaluation of the stress in the solar cells was developed. The stresses of the solar cells in PV module of 1580mm×808mm were calculated by the present solution and the wind pressures and the effects of the storage shear modulus of the EVA were considered. The results by the present solution were in good agreement with those from FE.
Quantitative Characterization of Graphite Morphology in Cast Iron from 3D Perspective
Authors: Ma Zhijun , Yang Zhong , Guo Yongchun , Li Jianping , Liang Minxian , Wang Shaogang 
Published: September 2020

Abstract
Compared with 2D microstructure characterization, quantitative characterization of graphite morphology from 3D perspective can make it more possible to predict and improve properties of cast iron with relatively high accuracy. In the present study, based on 2D metallographic photos, X-ray tomography was utilized to investigate 3D morphology of graphite clusters in different cast iron and 3D quantitative characterization of graphite morphology was carried out by Avizo software. The results show that basically all nodular graphite in ductile iron are isolated and almost all graphite phase is interconnected in gray iron. The interconnectivity of compacted graphite iron is closely related with vermicularity. The flake-shaped graphite in gray iron is different with coral-shaped graphite in compacted graphite iron from 3D perspective. The quantity proportion of graphite clusters smaller than 10000μm3 is as high as 99.7% and 97.1% respectively in gray iron and compacted graphite iron with 91.3% vermicularity. The volume of graphite clusters larger than 100000μm3 basically accounts for most of graphite volume and the proportion is over 95% in gray iron and compacted graphite iron with high vermicularity. The difference of graphite volume distribution among different cast iron is mainly concentrated in the volume range from 10000 to 100000μm3.
Numerical Simulation on Characteristics of Heat Transfer with Different Elliptic Tube Cross Sections
Authors: Gao Quanfu , Ma Sen 
Published: September 2020

Abstract
With the developing of manufacturing technique and the lack of material in recent years, the elliptic tube-fin bank heat exchangers have been paid more and more attentions. The numerical simulation has become an important mean and effective way for studying the flow and heat transfer. The heat transfer capacity of the heat exchanger is affected by multiple factors, among which the cross sections of the elliptic tube is a major factor. In this article, we take numerical analysis methods and SIMPLE algorithm in body-fitted coordinate system to analyze the effect of the different elliptic cross sections on heat transfer characteristics, the results will provide basis for designing and manufacturing compact heat exchangers.
Applying Baydur Composite Material in Designing Automotive Door Beams
Authors: Ma Lingyue , Liu Mingji , Chen Zhiyuan 
Published: September 2020

Abstract
This work studied the application of Baydur pultrusion composite material to the side door anti-collision beams of cars. The beams are currently made of high-strength steel materials and arranged inside the door to meet the requirements of road safety laws and regulations. The Baydur pultrusion composite material has many advantages that metal steel does not have. Based on the characteristics of the composite materials and safety standards for vehicle side collisions, we proposed a design to use Daybur composite material instead of steel as the anti-collision beam material in automobile side doors. The structural design of the beam with the composite material is optimized so that it can effectively improve the safety performance during side collisions and reduce the body weight to save fuel consumption. The feasibility of the design has been investigated from three aspects of technical manufacturing, safety performance and market application. The application of the composite material in the anti-collision beams will provide new options for the safety and energy efficiency of civil vehicles.
Comparison of Various PID Control Algorithms on Coupled-Tank Liquid Level Control System
Authors: Yang Yang 
Published: September 2020

Abstract
On account of the unsatisfactory control effects of traditional PID control theory on dealing with complicated or nonlinear control system, the paper focused on multiple intelligent control theories, including fuzzy self-adaptation modulation PID control, BP neural network modulation PID control and RBF neural network modulation PID control. By setting double-Tank model as an example, and adopting MATLAB software programming, the research is aimed to realize tank level control via four PID control algorithms. By comparing the simulation curves of the four control algorithms, the superiority of the REF neural network in arbitrarily accurate approximating any continuous function is proved.
The Scientometric Approach of Mapping Sustainable Green Infrastructure Research Developments
Authors: Retno D P , Wibowo M A , Hatmoko J U D 
Published: September 2020

AbstractWhile sustainable green infrastructure research has progressed substantially in the last decade, there has been a lack of study mapping on the developments of existing research publications in this area. This research aims to systematically review and map the development of existing publications during the period of 2009 – 2019 using the Scientometric review approach of Scopus metadata and VOSviewer software. The results show there were 1784 publications and 4894 authors from 109 countries, with the top 3 countries, i.e. the United States (472 publications), the UK (162 publications) and China (151 publications). The top 3 rankings of the main research area trends were green infrastructure (260), sustainability (211), and sustainability development (134). The publications were dominated by articles (50.2%), conference papers (32.2%), book chapters (7%), reviews (7%), and books (6.4%), which consist of 338 open-access documents, and 1396 closed-access documents. The top 3 authors with the most citations were Wang J. (261 citations), Jensen M.B. (82 citations) and Haase D. (76 citations). The outcomes of this study are expected to fill the existing research gap as well as to provide an overview of the development of sustainable green infrastructure research publications and to see future research development opportunities.
A Review of the Discrete Element Method Application on Concrete Materials
Authors: Ma’arif F , Gao Z , Li F 
Published: September 2020

Abstract
This paper describes an attempt to analyze each methodology and bring it all together in one place for crossreferencing expert analysis. The advantage of using DEM compared to continuum-based techniques is in cracking and fragmentation starting and spreading because the DEM system is naturally disconnected. Concrete is a non-homogeneous composite material with significant heterogeneity of quasi-brittle characters. Structural failure behavior in concrete usually preceded by initial cracking and influenced by the mesoscale structure, interface between aggregate and mortar matrix, especially under complex pressure conditions. The ability of the DEM to produce 3-phase material representation in concrete will significantly depend on the application of the contact model between particles that have bound during the simulation. The main development area in this paper is related to stages (particle contact, contact model), parameters, and implementation that are entirely established in the simulation phase of materials. It will assist future researchers in improving analysts when modeling concrete to select appropriate methods and procedures, and to identify critical parameters for specific applications.
The Study on Modulus of Elasticity (MoE) and Modulus of Rupture (MoR) of Lamina Beams on The Lime Wood (dryobalanops spp.)
Authors: Suryono J , Bhakti S O W 
Published: September 2020

Abstract
The aims of this study are to determine the stiffness, flexural strength of lamina beam of lime wood by using both of adhesive Dovebond 30 and Synteko 1909. The testing was conducted based on standard ASTM D 143-05. Data was processed and analyzed by factorial design. The board made by using a log wood with a diameter of more than 40 cm and display 1 m which then split into several pieces of sheet board with 2; 1; 2 cm, thickness 5 cm. The board sheet was cut to a width of 5 cm, 2; 1; 2 cm thick and 71 cm long to make multiple walking joints and types. The entire adhesive resurfacing system was carried out using a cape/brush. Both lamina (double spread) surfaces was sprinkled with 200-220 g/m2 melting weight. The adhesion sliding strength of lime beam used 1.03 kN/cm2 of adhesive Synteko 1909 and 0.84 kN/cm2 of adhesive Dovebond 30. The measured three-layer lamina beam was the measurement results of lime wood that provides the stiffness efficiency (MoE) of 38.91% of solid beam stiffness (MoE) and the flexure strength (MoR) of 10.26% of the flexure strength of the solid beam. Three-layer lamina beam with five finger joints was the measurement result for the highest MoE stiffness of 1,321 kN/cm2 using the adhesive Dovebond 30, and the highest flexure strength of 80.6 kN/cm2 using the adhesive Synteko 1909.
Value Engineering in The Implemetation of Kumkang Formwork (Case Study: The Alton Apartment Project in Semarang Indonesia)
Authors: Suwandi P A P , Husodo I T , Suryadi M W 
Published: September 2020

Abstract
Value engineering is usually done by substitution of materials or change in construction method. One of them is in The Alton Apartment Project in Tembalang, Semarang, which is apply Korean technology on aluminum formwork system called Kumkang. The objectives of this study are to calculate the coefficient of worker productivity, to find out the time required to install the aluminum form (Kumkang) compared to conventional one, and to compare the workers’ costs for conventional formwork and Kumkang aluminum formwork. The analytical method of the study uses the Value Engineering Method. The calculation of the workers unit price coefficient analysis of aluminum formwork work (kumkang) equal to 0.025 MD, while of the unit price of workers on the formwork according to the Indonesian National Standard Work Unit (AHSP-SNI) equals to 0.330 MD. The time required of the aluminum formwork (kumkang) installation are 2,47 days for 1582.10 m2 formwork while the conventional formwork needs 32,6 days for the same volume. The cost calculation shows that the worker cost to install Kumkang Formwork is Rp. 7,200,000 while for the conventional formwork is Rp. 79,200,000. Based on the results, it can be concluded that Kumkang formwork technology is more efficient than conventional system.
Member Sizing Optimization of Large Scale Steel Space Trusses Using a Symbiotic Organisms Search Algorithm
Authors: Wong F T , Prayogo D , Putra R E , Joseph J 
Published: September 2020

Abstract
A systematic approach of optimization is needed to achieve an optimal design of large and complex truss structures. In the last three decades, several researchers have developed and applied various metaheuristic optimization methods to the design of truss structures. This paper investigates a new metaheuristic algorithm called symbiotic organisms search (SOS) for member sizing optimization of relatively large steel trusses. The case studies include a 120-bar dome truss and a 942-bar tower truss. The structural analyses are carried out using the standard finite element method. The profiles of the truss members are circular hollow structural sections selected from a set of the American Institute of Steel Construction standard profiles. The design results using the SOS are then compared to those obtained using other metaheuristic methods, namely the particle swarm optimization, differential evolution, and teaching-learning-based optimization. The comparison shows the superior performance of the SOS in terms of the optimal solution, consistency, and convergence. Thus, the SOS is a good alternative for optimizing the design of steel truss structures in real engineering practice.