bluuebunny/crossref_metadata_2025_split huggingface dataset:
Competitiveness evaluation and cluster analysis of logistics industry in Henan Province based on SPSS 22.0
Authors: Liu Qianqian 
Published: June 2021

Abstract
The logistics industry is an important support for the construction and development of my country’s national economy, and there is a close relationship between regional logistics and regional economy. In order to comprehensively evaluate the level of logistics competitiveness in Henan Province, this paper has established 11 evaluation indexes of Henan logistics industry competitiveness from three perspectives: regional economic conditions, logistics demand and logistics industry support factors. With the help of SPSS 22.0 software for factor analysis, 11 indexes are divided into two public factors: logistics economic development environment, logistics demand and scale, and the competitiveness of the logistics industry of 18 province-administered cities in Henan Province is ranked. According to the scores of 2 factors, the 18 provincial cities were divided into five categories using the systematic cluster analysis method, and then the development ideas for the development of the logistics industry of each type of provincial cities were put forward to provide a reference for the overall development of the logistics industry in Henan Province. At the same time, it also provides reference for the development of logistics industry in other regions.
Intelligent monitoring system of elevator Internet of things
Authors: An Ziliang , Liu Shaofeng , Bai Dingsong , Wang Ning , Yu Xintong 
Published: June 2021

Abstract
The function of traditional elevator monitoring system is relatively simple. It cannot realize on-demand maintenance and fault warning. To solve such problems, this paper builds an intelligent monitoring system of elevator Internet of Things based on multi-sensor information fusion, bus communication and probability and statistical analysis technology. Managers can access the control platform through smart terminals or web browsers to achieve data query, video monitoring, alarm management of the elevator system, health management and other functions, which can help managers detect hidden dangers of elevator safety in time and ensure safe and efficient operation of elevators.
The Influence of Temperature on the Secondary Use of Lithium Iron Phosphate Power Battery
Authors: Meng Qingbiao , An Ziliang , Yu Xintong , Wang Ning , Bai Dingsong , Liu Shaofeng 
Published: June 2021

Abstract
At different temperatures, we test the charge and discharge performance of lithium iron phosphate power batteries after retirement, and study the effect of temperature on the performance of decommissioned batteries, including the test of capacity and energy, and the battery voltage test. Experimental results show that low temperature will lead to a decrease in charge and discharge capacity and energy, and affect the performance of decommissioned batteries.
Calculation Method of Electric Vehicle Baseline Load Based on Classification
Authors: Zhang Yue , Liu Mingguang , Liu Dunnan , Jia Heping , Su Shu , Peng Xiaofeng , Zou Mengjiao , Shang Shanshan , Yang Ye 
Published: June 2021

Abstract
In the incentive based demand response project, the baseline load calculation of electric vehicle users can provide quantitative basis for evaluating the power demand response and the load adjustment degree of users. The charging load of electric vehicle is different from the traditional electric load, which has greater flexibility and is more affected by user’s behavior. This paper analyzes the characteristics and influencing factors of electric vehicle charging load. On the basis of summarizing the common calculation methods of user baseline load at home and abroad, this paper puts forward the calculation method of electric vehicle baseline load based on classification, and finally analyzes the accuracy and applicability of this method combined with specific examples.
The Research on System of Charging Load Aggregator Participating in Market Transaction based on Internet of Vehicles
Authors: Zhang Yue , Yang Jing , Li Jun , Han Yingzhu , Zhao Zhiqiang , Du Xin , Liu Mingguang , Liu Dunnan 
Published: June 2021

Abstract
The electric vehicle market has gained rapid growth in various countries. Electric vehicles will be one of the largest loads in the future power grid. This paper sorts out the typical models of charging load aggregators’ participation in ancillary services, demand response, and valley drop electricity curve tracing, and formulates the trading strategies of charging load aggregators in the electricity direct trading market, ancillary service market and electricity derivatives market. And then the strategy of aggregators participating in multi market coordination is proposed. Based on the contribution of aggregators to participate in market transactions, considering the willingness of different entities to participate in charging load aggregated transactions, a reasonable game model as well as a fair and reasonable value sharing mechanism is established to achieve the transmission of market trading dividends and promote the charging load aggregators to participate in the electricity market transactions.
Dynamic response and failure mode of series isolation system under explosion load
Authors: Yanan Wang , Bin Peng , Anan Liu , Yonghui Liu 
Published: June 2021

Abstract
The numerical model of the series isolation structure was established by using the finite element software to simulate the dynamic behavior of the series isolation structure after explosions occurred at different positions, and study the dynamic response and failure mode of the series isolation structure under explosion load. The results show that the vertical displacement and speed of the beams on each floor show a certain regularity with the passage of time. When columns at different positions encounter explosive loads, they will cause local collapse and damage of the structure, and the damage is mainly distributed in the longitudinal and transverse ranges where the columns are located. Compared with the inner column, the structural damage caused by the explosion load on the corner column and side column is more serious.
Parameter optimization analysis of fuel injection system for high pressure common rail diesel engine
Authors: Xuejun Wang , Fangjian Xu , Yiran Wang 
Published: June 2021

Abstract
The cleaning and energy-saving environmentally friendly diesel engine, with the high pressure common rail fuel injection system, is the main driving force in the transportation sector. Being the core and key technology, the high pressure common rail fuel injection system is the inevitable developing trend of the future fuel injection system. The parameter optimization design of the high pressure common rail fuel injection system is of great practical significance to improve. the operation stability of common rail system. By up-grading the fuel control precision and optimizing the overall performance of the engine, the purpose of energy saving and emission reduction can be finally achieved.
Analysis and Application of Optimal and Fast Drilling Technology in Gaoshangpu Block of Jidong Oilfield
Authors: Li Wen , Zhao Dawei , Tao Fu , Lv Zhuolin , Li Ning , Zhao Xianlong 
Published: June 2021

Abstract
The Gaoshangpu block of Jidong Oilfield is a hot block for increasing production and storage in Jidong Oilfield. High-quality and efficient drilling and completion can shorten the operation time and have huge economic and social benefits. Aiming at the problems of large well depth, complex geological conditions, poor stratum drillability, low drilling machinery efficiency, and long drilling cycle in the Gaoshangpu block of Jidong Oilfield, this paper optimizes its drill bits, speed-up tools, drilling parameters, and drilling fluid performance. Through bit optimization, a PDC bit optimization template is formed. A single S1942 PDC and BTM159AR PDC bit can solve the problem of poor formation drillability, improve drilling efficiency, shorten completion time and optimize speed-up tools in the study area. For glutenite developed stratum (bottom of Guantao Formation), we use shock-absorbing thruster, and for gray mudstone (Shahejie Formation), we use shock-absorbing thruster + curved screw. 1% organic silicon polymer can be added to the three-open drilling fluid to improve the drilling fluid performance. The adding of the compound (PLH: KPAM: ammonium salt = 1: 1: 2) can inhibit mud making, and the 2% anti-collapse agent before drilling into basalt can solve the well wall collapse of Shahejie Formation and Guantao Formation. The liquid with density of 1.44-1.45 can prevent well overflow. The research results provide guidance for high-quality and efficient drilling in the Gaoshangpu block of Jidong Oilfield and ensure the safety of drilling operations.
Optimization of customized bus green line network based on passenger travel time window
Authors: Lang Guoling 
Published: June 2021

Abstract
In order to solve the problem of public transportation in China, this paper optimizes the customized bus network based on the passenger travel time window and the operating cost. Firstly, the passenger travel time window is proposed, and then a model about the minimum objective of customized bus operation cost, environmental protection cost and passenger travel cost is established, which is solved by lingo software, and then the customized bus route planning is studied according to the case, and finally the conclusion of this paper is drawn.
Calibration method research and uncertainty evaluation of End-tidal carbon dioxide concentration of Multifunction Patient Monitoring Instruments
Authors: Li Weiwei , Jiang Junjie , Li Hongliang , Liu Mengjun 
Published: June 2021

Abstract
The monitoring of end-tidal carbon dioxide concentration has the characteristics of non-invasive and quick response, which has become one of the important ways of clinical vital signs monitoring. This monitoring equipment is widely used in emergency operating room, critical care and other important departments. The calibration of end-tidal carbon dioxide concentration can effectively test the accuracy and safety of equipment, and the research of calibration method and the evaluation of uncertainty are of great significance.
Research on Low Carbon Multimodal Transport Network Structure and Rapid Transit Mode
Authors: minai He , Tian Xia , yujing lai 
Published: June 2021

Abstract
Practice at home and abroad has proved that multimodal transport is a safe, efficient, low-carbon and environmental protection advanced transport organization. In recent years, the Chinese government has introduced a series of policy measures, to encourage broad nationwide transport and multimodal transport. This paper draws on the advanced experience of Europe, america and other developed countries, construction of a network structure model. In this paper, four typical transport modes of container unit cargo by rail are described, and the layout design of each mode loading and unloading operation area is carried out.
Analysis on the hazard control technology of volatile organic compounds
Authors: Liu Chunhui , Gao Jucheng 
Published: June 2021

Abstract
This paper introduces the Constitution and mechanism of VOCs, and then analyzes the hazard path, demonstrates the importance of VOCs treatment, analyzes the status quo of VOCs treatment, and introduces in detail various methods of controlling VOCs Pollution, such as combustion, absorption (washing), condensation, charging and biological methods, It is easy to use for reference on the treatment methods of VOCs, and to reduce the harm.
Research on carbon emission reduction calculation and user subsidy mechanism of electric vehicles
Authors: Zou Mengjiao , Liu Mingguang , Liu Dunnan , Jia Heping , Su Shu , Peng Xiaofeng , Zhang Yue , Shang Shanshan 
Published: June 2021

Abstract
Under the goal of carbon neutralization and carbon peak, China’s electric vehicle industry will usher in a high-speed development stage. Electric vehicles can achieve carbon emission reduction from two aspects of electric energy substitution and clean energy substitution. In this paper, the carbon emission reduction benchmark of electric vehicles is determined, and the Bass model is used to predict the number of electric vehicles. On this basis, the carbon dioxide emissions reduced when electric vehicles replace fuel vehicles to meet the travel requirements and the carbon dioxide emissions of electric vehicles with different proportions of renewable energy generation are analyzed. Finally, the benefits of carbon emission reduction under decentralized and centralized modes are studied to determine the subsidy range of electric vehicle users.
Optimization of enzymatic hydrolysis assisted ultrasonic extraction of polyphenols from Chaenomeles sinensis (Thouin) koehne
Authors: Fang Shuangjie , Hu Fuxia , Li You , Wang Fengqin , Zhou Changxin , Wang Zhaosheng 
Published: June 2021

Abstract
In this paper, the optimal extraction process of polyphenols from Chaenomeles sinensis (Thouin) koehne was studied by single factor test and response surface test. Research results showed that the optimum extraction conditions were as follows: enzymatic time 55 min, ethanol concentration 59%, enzymatic liquid-material ratio 28:1 mL/g, pectinase amount 20 μL/g, enzymatic pH 3.4, enzymatic temperature 65°C, ultrasonic liquid-material ratio 30:1 mL/g, ultrasonic time 40 min, ultrasonic temperature 55°C. Under these conditions, the extracted content of Chaenomeles sinensis (Thouin) koehne polyphenols was 62.07 mg/g.
Study on The Relationship between Vegetation Index And Bird Diversity in Beidagang Wetland
Authors: Zi-ling Dai , Meng-xuan He , Dan-ran Lv , Jia-rui Liu , Ling-xuan Xu , Peng-cheng Wan , Xun-qiang Mo 
Published: June 2021

Abstract
Birds are an important part of wetland ecosystem. With the development of urbanization, bird vegetation is destroyed seriously, threatening bird diversity. In view of this, this paper studied the dynamic changes of NDVI (Normalized Difference Vegetation Index) and three bird diversity indexes (Shannon-Wiener index, Simpson index, Pielou index), and explored the relationship between the two, based on the wetland bird survey data and Landsat 8 remote sensing images from 2015 to 2019 in Beidagang Wetland. The results showed that: Although the growth condition of wetland plants changed from poor to better due to the ecological water rehydration measures adopted in the later period, the three indexes leveled off except in 2018. Spearman correlation analysis showed that Shannon-Wiener index was highly negatively correlated with NDVI, and slightly negatively correlated with Simpson index and Pielou index, indicating that NDVI in Beidagang Wetland had much less impact on bird diversity than other habitat factors, and could not play a leading role.
Microzonation of Ground Motion Parameters in Shangluo City
Authors: Zhang Hanliang , Li Baolai , Wang Xiaojun , Nie Dawei , Li Chunfeng 
Published: June 2021

Abstract
This paper studied the regional seismic tectonic characteristics, regional seismic activity characteristics, the near-field seismic tectonic characteristics, near-field earthquake activity characteristics about the site of Seismic Microzonation in Shangluo City, seismic belts and potential seismic source zone were divided, calculating the seismic risk analysis of the bedrock of the site, surveying engineering geological conditions in the site, carrying out the seismic response analysis of the site, and zoning the ground motion parameters of the site. The above results provide a basis for the seismic fortification of the proposed general engineering in the site.
5G Technology and Its Application in the Seismograph Intelligence
Authors: Lin Duibo 
Published: June 2021

Abstract
In order to meet the national intelligent development needs of coal mines, construct smart mines, improve their safety production levels and finally realize the vision of flexible manpower line and unmanned development, the application of 5G communication technology in intelligent seismographs for underground coal mines was discussed in this study based on the development history and advantages of 5G technology. Next, the application of 5G technology in the intelligent development of coal mines and the main application scenarios were explored by combining its three major unique advantages: high speed, low time delay and wide connection. The emphasis was laid on studying the seismograph intelligence based on 5G module, and then the uplink and downlink rates of three major operators under the same environmental conditions as well as uplink and downlink rates of the same operator at different positions under the 5G environment were tested. After being connected to 5G module, the seismographs sent data to the server side with fixed IP address, it was verified through the test that the normal communication was enabled under both TCP and UDP forms, and on this basis, the functions of seismograph, namely data passthrough to server and wireless real-time data transmission, were realized.
Research on Functional Interdependence Patterns of “Village-Urban” Spatial Structure of Shenzhen: A Living and Activity Space Perspective
Authors: Li Yang , Song Jusheng 
Published: June 2021

Abstract
The urban village is a special product of the rapid urbanization process in China. To accurately understand its functional embedding mode in the urban organism is an important decision-making prerequisite for optimizing the governance effectiveness of urban renewal. Taking residents’ living and activity space as the breakthrough point, this paper analyzes the spatial functional patterns of villages in cities by measuring the “village-urban” interdependence relationship based on cellphone big data. It is founded that urban villages in Shenzhen are closely related to other parts of the city, and are not self-isolated communities. At the same time, due to the extensive construction and management mode, the function homogenization of urban village space is obvious, and its location is the main determinant of its participating way in urban activities. The research holds that from the perspective of providing citizens with low-cost opportunity to participate in urban public life and ensuring the resilient development capacity, it is necessary to coordinate and reserve a certain proportion of urban village residential land within the sub-community of residents’ living and activity space to promote the benign and healthy development of urban space organisms.
Scheme Design of Returnable Transportation Packaging System between Shandong Province and South Korea
Authors: Wang Jun , Hou Yimeng , Wang Weishan 
Published: June 2021

Abstract
The main trade product categories and logistic packaging standard systems were firstly investigated between Shandong province and South Korea. Based on the results, the auto parts were chosen as the target product to design the returnable transportation packaging system. Therefore, the system composed of standardized plastic pallet, nested plastic returnable box and top cover were designed for the light auto parts, while the folding visualized metal mesh box was designed for the heavy auto parts. By simulating the adaptability among different specifications of packaging equipment and the shipping containers, the recycling plastic pallet with size of 1140 mm×980 mm, plastic packaging boxes with size of 480 mm×380 mm were preferred to match 40 ft containers, the plane and space loading efficiencies of which are 94.89% and 87.35%, respectively. While, the metal mesh boxes with 1000 mm×800 mm×760 mm were preferred to match with 20 ft containers, with the plane and space loading efficiencies of 94.89% and 87.35%, respectively.
Research on Climate Adaptation Design Strategy Driven by Spatial Performance from the Perspective of Land-Based Rationalism: Taking the Academic Complex Project in Central School of Communist Youth League of China as an Example
Authors: Xu Bin , Xiang Yuan , Li Dongzhe 
Published: June 2021

Abstract
With the rapid urban development, the construction of public buildings in China has been greatly promoted, and the problem of large energy consumption of public buildings has also become increasingly prominent, with a stronger demand for close combination of public buildings and passive design. Based on the characteristics of theater space, this paper mainly studies the passive design method of large space, excellently integrates climate adaptability design technology with passive building design strategy, and explores the optimal passive design scheme for theater buildings, by taking the academic complex project in Central School of Communist Youth League of China as an example, with passive priority and active optimization for the principle from the aspects of climate adaptation and indoor environment comfort.
Analysis of Traffic Flow Characteristics in Intelligent Networking Environment
Authors: Liu Pengqun 
Published: June 2021

Abstract
In an intelligent networked environment, both the car and the road are more intelligent, and the information interaction between the vehicle and the roadside equipment is more frequent, the vehicle has a greater advantage in information acquisition, processing, decision-making and standardized driving compared to ordinary manual driving vehicles. The study of mixed traffic flow between intelligent networked vehicles and ordinary vehicles in the intelligent networked environment is of great significance to improve the operational efficiency of traffic flow and road capacity. In this paper, we build simulation scenarios in Vissim based on the meta cellular automaton traffic flow model and the Wiedemann model, conduct simulation experiments on the mixed traffic flow of intelligent networked vehicles and ordinary vehicles, and study and analyse the influence of the change in the proportion of intelligent networked vehicles on the flow, density, speed and other characteristics of the traffic flow. The results show that when the proportion of intelligent networked vehicles in the traffic flow is 40% to 80%, with the increase in the proportion of intelligent networked vehicles, the operating speed of the traffic flow, the density of the traffic flow has been improved to varying degrees, and the road passable flow has also been improved.
Architected fibrous scaffolds for engineering anisotropic tissues
Authors: Reid James Alexander , Dwyer Kiera D , Schmitt Phillip R , Soepriatna Arvin H , Coulombe Kareen LK , Callanan Anthony 
Published: June 2021

Abstract
Mimicking the native three-dimensional microenvironment is of crucial importance when biofabricating a new healthcare material. One aspect of the native tissue that is often omitted when designing a suitable scaffold is its anisotropy. Not only is matching native mechanical properties important when designing implantable scaffolds or healthcare materials, but matching physiological structure is also important as many cell populations respond differently to fiber orientation. Therefore, novel aligned electrospun scaffolds with varying fiber angles and spacing of bundles were created and mechanically characterized. Through controlling the angle between the fibers in each layer of the scaffold, a range of different physiological anisotropic mechanical properties were achieved that encompasses values found in native tissues. Extrapolation of this mechanical data allowed for any native tissue’s anisotropic Young’s modulus to be mimicked by electrospinning fibers at a particular angle. These electrospun scaffolds were then incorporated with cell-laden hydrogels to create hybrid structures that contain the benefits of both scaffolding techniques with the ability to encapsulate cells in the hydrogel. To conclude, this study develops a novel bundled fiber scaffold that was architected to yield anisotropic properties matching native tissues.