bluuebunny/crossref_metadata_2025_split huggingface dataset:
GIS-based Fire Risk Assessment and Fire Station Site Selection——Taking Dujiangyan City as An Example
Authors: Xiao Hai , Zhou Yao , Zhang Hongtao 
Published: December 2020

Abstract
This study takes the urban area of Dujiangyan City as the research area, ten risk assessment factors are selected to conduct the fire risk assessment and analysis, including substations, building floor area ratios and miniature fire stations, and uses analytic hierarchy process, buffer analysis and overlay analysis. The minimize facilities model and maximize coverage model in location allocation model (LA model) are used to optimize fire station site selection. The research results show that there are still greater fire risks in the south and northeast of Dujiangyan City. The addition of two small and medium-sized fire stations in the north section of Yanhua road and in south section of Rainbow Avenue can basically realize to cover the areas with higher fire risks thoroughly.
Land Deformation Monitoring in Lanzhou City Based on SBAS-InSAR Technology
Authors: Rongrong Li , Weifang Yang , Deyan Li 
Published: December 2020

Abstract
With the continuous advancement of urban construction, the original natural landscapes such as wetlands, vegetation, and soil are converted into artificial landscapes such as buildings and roads, resulting in a wide range of changes in urban surface. Monitoring urban surface changes is of great significance to the healthy development of cities and the prevention of geological disasters. The traditional land deformation monitoring technology has the disadvantages of small monitoring range, large workload and low efficiency. Interferometric Synthetic Aperture Radar technology can effectively solve the defects in the traditional deformation monitoring technology. This paper takes Lanzhou as the research area, selects the Sentinel-1A data of 25 scenes from 2014 to 2016, and uses the Small Baseline Subset Interferometric Synthetic Aperture Radar (SBAS-InSAR) for land deformation monitoring. The sedimentation observation results obtained by the SBAS-InSAR technique was analyzed with the methods of statistical analysis and time series analysis. The results show that: (1) The overall urban area of Lanzhou City has been slightly sunk, and the funnel in the deformation area is mainly concentrated in the mountainous areas, new residential buildings and subway stations. (2) From the perspective of each region, Shajingyiin Anning District, near XuanshengRundi in Jiuzhou, near Xiaodaping Driving Test Center, and near Xuanmagou-Badaoping Village in Chengguan, near Donggang Cargo Center, near Fulongping, near Hendafeicuihuating in Qilihe District, near Lanzhou West Railway Station and other places all showed strong subsidence trends, and the area with the highest deformation rate is Xiaodaping, which maximum average annual deformation velocity can reach 30.8mm/a, and the cumulative deformation is as high as 65.9mm.(3) The land deformation of Lanzhou City shows a non-linear downward trend, and the deformation gradually spreads in the east-west direction. Eventually, deformation also occurred in some foothills in the north and south, and in some urban areas. (4) The main driving factors for settlement in the urban area of Lanzhou are loess soil, rail transportation and urbanization.
Application analysis of green ecological building theory based on residential architectural design
Authors: Chen Lisheng 
Published: December 2020

Abstract
At this stage, with the proposal of green, ecological and environmental protection concepts, higher requirements have been put forward for the current residential architectural design. Applying the concept of green ecological architecture to residential architectural design can not only reduce the consumption of resources and pollution to the environment, but also achieve the construction of green houses and green cities. At the same time, it is also the key that promotes the sustainable development of the construction industry. In this article, it first analyzes the significance of green ecological residential architectural design; it then focuses on the specific application of green ecological architectural concepts in residential building design.
Analysis of Chinese international contractors and designers in 2020
Authors: Zhang Tingting , Chen Chuan 
Published: December 2020

Abstract
Based on the list of top 250 international contractors and top 225 international designers released by Engineering News Record (ENR), this paper detailed the latest statistical analysis and comparison of the top 250 international contractors and the top 225 international designers from the three aspects of ranking, field and region. The seventy-four Chinese international contractors listed on the top 250 in 2020 have international revenues of US$120.01 billion, a slight increase of 0.87% over last year; the overseas design amount of the 24 Chinese designers on the top 225 list in 2020 was US $4.294 billion, a decrease of 15.92% over last year.
Research on Influencing Factors of Average Sales Price of Residential Commercial Housing in Major Cities of China
Authors: Bai Yu 
Published: December 2020

Abstract
Housing prices are closely related to a country’s social stability, political economy, etc., and its fluctuations will also be affected by many factors. This paper collects relevant data from 35 major cities in China over the past ten years to study the effects of changes in different factors on housing prices. It mainly uses multiple regression analysis and panel regression analysis to guide residential sales prices more scientifically and effectively. It is of certain significance to promote the healthy and orderly development of the real estate market.
A Study on the Dynamic Mechanism of Private Capital Participating in Urban Informatization Construction
Authors: Wang Dong , Wu Meiling , Xie Yan 
Published: December 2020

Abstract
During the construction process of urban informatization, private capital is an important source of funds. How to motivate the enthusiasm of private capital to participate in informatization construction is a key issue. This article analyzes the characteristics of private capital, sorts out the types of power that private capital enters into urban informatization construction, and constructs a dynamic model for private capital to participate in the construction from internal and external. At the same time, the formation mechanism and implementation strategy are designed according to different dynamic models.
System-dynamics-based the analysis for material scheduling capacity
Authors: Jin Han , Er-fu Dai 
Published: December 2020

Abstract
Emergency material scheduling is an essential part of disaster prevention and mitigation. This paper builds up materials scheduling model based on system dynamics, real-simulation the process of emergency material scheduling in disaster prevention and mitigation, exploring the main factors that affect a city’s emergency capacity. The result shows that: the higher the scheduling capacity of government emergency material, the city’s emergency capacity can reach its peak level faster. This model can predict materials scheduling speed in real-time and provide the government’s emergency administrative department with a theoretical foundation to formulate reasonable disaster prevention and mitigation plans.
Research on the Influence of Vertical Green of Envelope Structure on Indoor Thermal Environment——A study of Zhengzhou city
Authors: Du Jinxia , Hu Wentao , liang Luxu , Zhang Wanying , Tian Jianye , Li Kangjie , Kang Jiacheng 
Published: December 2020

Abstract
In this paper, control variable comparative test was employed to study the effect of the vertical greening of the envelope structure on the indoor thermal environment of Zhengzhou city. Two rooms with exactly the same structure except for the vertical greening were used as the experimental group and the reference group. The experimental results found that when vertical greening was adopted, the average temperature of the outer surface of the wall was decreased by 7.6 °C and 0.4 °C during the day and night, while the average indoor air temperature was decreased by 1.8 °C and 0.1 °C respectively. Therefore, we also found out that the average indoor air relative humidity of green vertical room was increased by 3.9% and 0.2% during the day and night with respect to the reference room. It shows out that vertical greening can effectively alleviate overheating, stabilize indoor environmental humidity, and improve the indoor thermal environment significantly.
Policy text analysis of Hainan Free Trade Zone (Port) from the perspective of policy tools
Authors: Zhiyuan Ge , Rui Hua 
Published: December 2020

Abstract
Through the analysis of policies of Hainan Free Trade Zone (Port), deficiencies can be found and timely adjustment can improve the supporting role of policies for the construction of Hainan Free Trade Zone (Port), which is of great significance for promoting the development of Hainan Free Trade Zone (Port). Based on the perspective of policy combination, the research framework is constructed from five dimensions of “posting time - Issuing agency - policy type - policy subject - policy tool”. The content analysis and social network analysis are combined to conduct quantitative research on 108 policy texts related to the construction of Hainan Free Trade Zone (Port) from April 2018 to June 2020. The study found that the current policies of Hainan FREE Trade Zone (Port) involve more comprehensive fields, the government pays more attention to them, and the central government has a good coordination. However, there are some problems, such as fewer institutional associations, lack of demand-type policy tools, and imbalance in the internal structure of policy tools.
Research on the application of artificial intelligence technology in the field of urban security
Authors: Ying Sun 
Published: December 2020

Abstract
Artificial intelligence is one of the core factors that determine the future development of the security field. As one of the main means to maintain public security in modern society, security technology is of great significance to ensure the harmonious and stable development of society. In order to strengthen the application of artificial intelligence in the field of security and improve the automation and intelligence level of security technology, it is necessary to continuously study the application scheme of artificial intelligence in the field of security so that the security products can continuously meet the new needs brought by social development. In view of this, this paper mainly discusses the application of artificial intelligence technology in the field of security. First of all, the development level and stage of AI in the field of security are described. Secondly, the types of AI technology applied in the field of security are introduced. Thirdly, the practical application of AI in the field of security is summarized. Finally, it discusses the development prospect and trend of smart security in smart city construction.
Evaluation of urban light-emitting diodes lighting facilities’ impact on landscape shrub
Authors: Xiong Changwei , Xu Xiaoqiao , Chen Qingchang 
Published: December 2020

Abstract
In the field of urban lighting and landscape planning, most researchers focus on how to make lighting meet people’s demand, while few researchers consider the impact of lighting systems on landscape plants. Based on statistical methods and field measurements, the brightness data of street lamps in a street of Shanghai were collected, and these data were compared to the shrub growth data of the street green belt. The results show that LED street lighting facilities have a promotion effect on the growth rates of shrub’s new shoots, while it also have effect on shrub leaves’ greenness. This study discussed a statistically method to evaluate the impact of urban lighting system on landscape plants, providing theoretical and methodological support for unban lighting and ecological landscape design. Besides, this study could also help further study about the impact of urban lighting on Urban ecosystem.
Influence of exits and evacuees on evacuation efficiency
Authors: Han Xinxing 
Published: December 2020

Abstract
In order to study the evacuation process of crowd in evacuation space containing four exits (two exits on one side), a simulation environment was built by using multi-agent simulation platform NetLogo, and the evacuation simulation model was constructed. The influence of exit location, exit width and evacuee number on the evacuation efficiency was studied, the results show that: with the exit moving to the middle, the evacuation time first decreases and then increases, and the decreasing rate of evacuation time decreases gradually and the increasing rate increases gradually; when the evacuee number is small, the evacuation time decreases with the increase of exit width, until the evacuation time remains unchanged when the exit width is large enough. However, when the evacuee number is large, the evacuation time in different positions decreases with the increase of exit width, and the overall decrease rate decreases; with the exit moving to the middle, the increasing rate of evacuation time with the increase of evacuee number at different exit widths decreases at first and then increases. The research results can provide some reference value for the evacuation exit design of building and emergency command of crowd evacuation.
Contract coordination of emergency supply chain with government participation considering risk aversion of participants
Authors: Lin Peng , Song Yinghua , Liu Dan 
Published: December 2020

Abstract
For governments and nonprofit organizations such as the Red Cross, charity federation, through the contract form emergency relief materials reserve not for profit, but to cope with the future the possibility of natural disasters and public health events, the occurrence of natural disasters and public health events has great uncertainty, which makes the demand for emergency relief supplies have great randomness. On the basis of predecessors’ research, according to the use of options in the theory of supply chain coordination, to build the mathematical model based on option contract, research shows that option contracts can be achieved under the conditional value at risk of emergency relief supply chain coordination, in order to improve the effectiveness of emergency relief supply chain, with the increase of Co option purchase price, the government will increase by option order quantity q**, Q** way to reduce the initial order quantity q reduce material procurement cost; When the option purchase price Co is fixed, the supplier’s risk aversion increases with the decrease of the risk preference coefficient. In this case, the government, as the purchaser, needs to provide a higher option strike price Ce to encourage the supplier to produce according to the optimal output of the supply chain system.
Circulation characteristics of two cases of Sea-entering Tibetan Plateau Vortices causing obvious differences in China precipitation
Authors: Yu S H , Gao W L , Peng J 
Published: December 2020

Abstract
By using the NCEP FNL, historical synoptic charts and the year books of Tibetan plateau vortex and shear Line, based on synoptic and diagnosis methods, the observation facts of the sea-entering Tibetan Plateau vortices (STPVs) from 1998 to 2018, (STPVs) from 1998 to 2018, the two southeast-path STPVs that made great differences in precipitation are comparatively analyzed. The results show that: (1) The would bring precipitation to the eastern coast of China, and further affecting Korean Peninsula, Japan and Russia. (2) The different circulation characteristics of large- and small-scale precipitation STPVs are as follows:there are strong north and south branch jets at 200hPa and the north branch jet extends to east-ward with the core moving to east, and the circulation is more stable at 500hPa to the north of 45°N in East Asia, and STPV induces low vortex in the lower atmosphere in large-scale precipiitation STPV process. The opposite situation is true for small-scale precipitation STPV process. As a result, there are rising motion areas with large range and strong strength in and near the large-scale precipitation STPV area in the middle and lower troposphere, where larger water vapor flux and strong water vapor flux convergence also exist.
Study of effects of downhole conditions on the setting time and compressive strength of MOS settable system by orthogonal experimental design
Authors: Cui K X , Jiang G C , Quan X H , Wang Z H , Hua Z C 
Published: December 2020

Abstract
Lost circulations of drilling fluids during drilling and completion can be an expensive and time-consuming problem. Commonly used lost circulation materials (LCMs) like nutshells or cross-linked polymer gels can’t be easily removed after plugging with a risk of formation damage. Magnesium oxysulfate cement (MOS cement) provides a reliable solution for solving the severe loss that occurs in production and non-production zones. In this paper, the effects of harsh downhole conditions including density, bentonite content, salt content, and temperature on the setting time and compressive strength of the MOS settable system are studied using the orthogonal experimental analysis method. At the same time, laboratory plugging experiments and field application are used to evaluate the ability of the MOS settable system to seal the severe loss. The results show that the downhole conditions have a significant effect on the setting time and compressive strength of the system. By adding calcium carbonate particles, the permeability of the MOS settable system can be reduced and the pressure-bearing capacity of the MOS solidified plug can be improved. Field application shows that this settable system can solve severe loss that conventional LCMs cannot solve and has a good application prospect.
Screening methodology of groundwater priority-control pollutants: A case study
Authors: Li X F , Zhang H Q , Miao S , Liu C , Miao Q 
Published: December 2020

Abstract
As an important source of domestic water and drinking water, the groundwater quality is crucial. Reasonable screening of typical groundwater pollutants is crucial for studying groundwater quality. At present, most research in Linyi focus on the distribution and utilization of water resources, few research focuses on groundwater quality. Therefore, this paper introduces a method of screening priority pollutants, that is, the screening method based on pollution assessment. This method can help to clarify research priorities and make targeted recommendations. In this paper, the study area is a Development Zone of Linyi. Based on groundwater monitoring data of November 2012 and November 2017, a screening method of groundwater priority control pollutants based on pollution assessment is applied to screen out typical pollutants of shallow groundwater quality. It will provide reference for future managements and planning of groundwater in the Development Zone. After pollutants screening and assignment calculation, the results show that the typical pollutants in groundwater are nitrite, anionic surfactant, ammonia nitrogen, fluoride, sodium, nitrate, permanganate index, sulfate, chloride, total hardness, total dissolved solids.
Typhoon wave modelling application for planning the harbor in Danang city, Viet Nam
Authors: Nguyen Q B , Nguyen C P , Vo N D 
Published: December 2020

Abstract
Analysis of wave propagation in shallow water is considered as one of the important keys in assessing the shoreline evolution, as well as an important basis for assessing the impact of waves on coastal structures. With the purpose of simulating the wave propagation process in the area of Danang Bay, as a basis for assessing the impact of waves and wind on the shoreline evolution as well as giving appropriate construction measures, the study has analysed wave propagation in an area of about 60.3 × 103 km2. Using the MIKE 21/3 module of the Danish Hydraulics Institute, and simulating under the most extreme wave conditions, under the impact of hurricanes level 10, level 13 and level 16 (conditions and storm trajectories based on Nari storm in 2013) as well as the influence of the flow of the Cu De and Han rivers, the study initially showed changes in velocity fields over time, changes in water level and waves in Danang Bay. These results are expected to become the basis for consultation with local authorities in coastal management and disaster prevention, especially in the context of increasingly complex climate change and sea level rise.
Reference evapotranspiration estimation using adaptive neuro-fuzzy inference system with limited meteorological data
Authors: Chia M Y , Huang Y F , Koo C H 
Published: December 2020

Abstract
Machine learning tools are extremely useful for the estimation and modelling of hydrological processes such as evapotranspiration (ET). In this study, reference evapotranspiration (ET0) in Labuan located in the East Malaysia was estimated using an artificial neuro-fuzzy inference system (ANFIS). In order to investigate the feasibility of the ANFIS model for a wide temporal range, daily meteorological data collected at Station 96465 (Labuan) from year 2014 to 2018 were divided on an annual basis. ANFIS models were trained using data from different years as well as varying combinations of one climatic parameter with solar radiation. The study revealed that the ANFIS model was capable of performing accurate estimation when only one year of training data were used where errors of less than 5 % and NSE above 0.950 were achieved. This finding could be useful for new meteorological stations where data are limited. Furthermore, solar radiation and minimum temperature were deemed to be the best input combination because of their distinguishable characteristics. Maximum temperature which highly overlaps solar radiation in nature was found the worst complementary input. However, it is important to note that the importance of climatic parameters could be affected by extreme weather conditions.
Application of high-performance water-based drilling fluid system in Mahu oilfield
Authors: Quan X H , Jiang G C , Cui K X , Luo X W , Zhao L , Chen C W , Xiao F F 
Published: December 2020

Abstract
The Baikouquan Formation in Block 18 of Mahu Oilfield, Xinjiang, is easily hydrated with mud shale; it exhibits poor cementation speed, low mechanical drilling speed, and high accident and complexity rates during drilling. The existing water-based drilling fluids show poor inhibitory properties, insufficient lubrication and anti-seize, and insufficient plugging ability for pores and micro-fractures, so it cannot easily satisfy construction requirements. In the present study, a strong inhibitor YZFS-1 and a wall-fixing agent GBFS-1 are introduced based on the existing water-based drilling fluid system to build a set of high-performance water-based drilling fluid system that has successful applications in a well. As revealed from the results of its field application: XZ high-efficiency water-based drilling fluid system exhibits stable rheology, low filtration loss, robust suppression ability and regular well diameter, and without the presence of downhole complex accidents. As compared with adjacent wells, the system of this study exhibits high drilling speed, a short cycle, low cost and significant effects, providing a solid technical guarantee for safe and efficient development in the area.