bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analysis of the Dynamic Impact of Intangible Assets on Capital Structure of Listed Companies in the Construction Industry
Authors: Duan Yinying , Wang Ruonan , Zhou Wei 
Published: November 2019

Abstract
Due to the leverage effect, appropriate liabilities can reduce the cost of capital, while intangible assets can cause changes in the asset-liability ratio. In order to further study the relationship between the two, this research selected the empirical data of listed construction companies that could potentially yield adequate findings, and used the distributed-lag model and WLS model for an empirical analysis. The research results show that there is a significant positive correlation between the asset-liability ratio and intangible asset ratio, the book value of intangible assets and internal structure of intangible assets, but the impact is slightly less than the asset profit rate. Despite this, the additive effect between the above-mentioned variables is still considerable. In the context of enhancing a company’s leveraged operations, a company’s management is suggested to adopt corresponding improvement measures and systems to deal with operational risks.
Response Analysis of Excavation of Deep Foundation Pit in Metro Station of Soft Soil
Authors: Wu Bo , Peng Yiyong , Lan Yangbin , Meng Guowang 
Published: November 2019

Abstract
Based on a deep foundation pit engineering of subway station in Ningbo soft soil area, the whole process of excavation of deep foundation pit engineering is carried out by PLAXIS finite element software and comparative analysis with field monitoring data based on HS soil hardening model. The analytical results indicates that the numerical simulation results can be well fitted to the field monitoring data. It is proved that the PLAXIS HS model can well complete the numerical simulation analysis of complex foundation pit excavation in soft soil area. From the Monitoring data and calculated values, the horizontal displacement of the grounding wall and surface settlement caused by the excavation of the auxiliary foundation pit are small, which has little effect on the main foundation pit. It is proved that the foundation pit support mode and construction method used in this project can well control the influence of the excavation of the auxiliary foundation pit on the main foundation pit.
Classification and Application of Surrounding Rock Stability of Straight Wall Semi-circular Arch Roadway
Authors: Kong Xiang-song , Wang Shuan , Fang Jie , Zhang Hao-chen , Hao Xiao-lin , Xu Zhuang-zhuang 
Published: November 2019

Abstract
The stability of roadway surrounding rock plays an important role in the safety of roadway, so the classification of roadway stability becomes an indispensable part in the safety analysis of coal roadway. Based on the statistical analysis of 25 relevant literatures and the principle of index selection, 12 classification indexes were determined by comprehensive analysis. A genetic neural network model was established. Data of 12 straight wall semi-circular arch roadways were investigated as training samples, and 4 roadways were selected for testing. The prediction accuracy of the model is 100%. Combining with the theory of strong support for coal roadway sidewall and angle, the stability classification model is applied to the classification of surrounding rock stability of straight wall semi-circular arch roadway, and reasonable supporting countermeasures and suggestions for different grades of surrounding rock are given. In order to verify the reliability of the model, the model has been applied in engineering, and achieved good results. It proves that the model has goodfit and strong applicability.
Numerical Evaluation of Tunnel Stability with Two-line Excavation by Plaxis3D
Authors: Xu Binbin 
Published: November 2019

Abstract
Before the excavation of the tunnel, it is very necessary to evaluate the stability of the tunnel especially for the ultra-long broken zone. The CD method and the three-step method are the potential construction method. The calculation parameters are simplified to improve the calculation efficiency and precision. The results show that the CD method can decrease the deformation of the enclosing rock significantly. During the practical excavation construction, CD method can be used when the tunnel is excavated at the initial stage.
Research of Advanced Geological Prediction in Tunnel Excavation with Ultra-long Broken Zone
Authors: Xu Binbin 
Published: November 2019

Abstract
The advanced geological prediction is carried out by using ground penetrating radar, infrared water exploration and seismic reflection method (TSP) for the shallow fractured zone of Laoyingshan tunnel. The prediction accuracy is over 95%. It is suggested that the advanced prediction method can be used in the follow-up similar tunnel projects to improve the information level of tunnel construction and ensure the quality and safety of the project.
Research on deformed slope parameters inversion based on equivalent conversion of soil pressure and application
Authors: Di Shengjie , Zhou Heng , Zhang Ying , Huang Peng 
Published: November 2019

Abstract
In this paper, a structural surface parameter inversion method for equivalent conversion of soil pressure is proposed. It can avoid the adverse effects of low overburden parameters, most dangerous sliding surface and relatively concentrated deformation limited to the overburden location. On this basis, we obtain the real inverse shear strength parameters of the deformation control structural surface. It can provide a reliable basis for evaluating the whole stability and protecting design of deformed slope. This paper analyzes and compares two kinds of supporting schemes for the deformed slope. The stability meets the requirements. In the actual situation, the design schemes can be selected according to the execution conditions, excavation and support sequence, and economic conditions
Study on the Ecological Landscape Design of Yawei Creek Wetland Based on LID
Authors: Liang Mingjie , Wang Haocheng 
Published: November 2019

Abstract
In recent years, many cities in China have built sponge cities to cope with the flood disaster faced, and Hainan province has taken the lead in carrying out the “ecological restoration and urban repair” urban double repair pilot work. Based on the LID strategy, take the wetland landscape design of Yawei Creek in Haikou city as an example, wetland landscape ecological design strategies are introduced, including landscape design for water transmission, river channel design, plant planting design and road system design. This paper analyses methods and discusses the urban rain flood management approach, to improve the management level of urban rainwater and provide a good reference for the construction of ecological landscape with regional characteristics in Hainan province.
The Analysis of Heavy Vehicle on Asphalt Pavement Service life based on Axle-mounted Traffic Volume Survey
Authors: Jia Li , Guijiao Ren , Zhide Dong , Chao Sun 
Published: November 2019

Abstract
Based on the surveied data of the G202 Heihe to Dalian on the Beisanjia station in Fushun City, Liaoning Province, the traffic conditions of the observation section of the station are analyzed. The continuous data is compared with the axle-load survey data, and the service life of the asphalt pavement in the year of data is analyzed. In order to make full use of real-time axle load-traffic survey data and accurately predict the remaining service life of asphalt pavement in an accurate and real-time manner, it is of great value to develop targeted asphalt pavement maintenance and protection countermeasures.
Study on the Method of Determining the Early Warning Level of Supply and Demand of Water Resources in Middle and Short Terms
Authors: Li Qifeng , Chen Xin , Wang Lei , Wen Jinhua 
Published: November 2019

Abstract
Taking the situation of water resources supply and demand at the regional short-term scale as the object of early warning, this paper puts forward the early warning index system of regional water resources supply and demand, clearly divides the early warning level of regional water resources supply and demand into three levels, and puts forward the determination methods of different early warning level standards, which provides support for the realization of early warning of regional water resources supply and demand. Yueqing City of the Wenzhou City was selected as a typical area for application research, and different levels of early warning standards were defined.
Flood hazard monitoring and analysis of mountainous riverside country - a case study in Xianfeng, Hubei, China
Authors: Li Zhe 
Published: November 2019

Abstract
Riverside towns are the weakness of flood control and disaster reduction system in China. Flood analysis of riverside towns based on hydraulic model is of great significance to the monitoring and early warning of mountain flood disasters. The paper starts with river system distribution and flood source analysis in case study of Xianfeng County, Hubei Province, China. And a flood calculation program is then proposed. On the basis of TUFLOW software, a one-dimensional hydraulics model is constructed, which is applied to calculate river flood evolution and diffuse embankment process under the designed flood conditions of 0.01, 0.02, 0.05, 0.10 and 0.20 (probability). The comprehensive information of flood range, submerged area and water depth is also retrieved, which is used to calculate flood hazard assessment and mapping. Results reveal that the main parts of Zhongjian River basically meet the flood prevention standard of 0.05 (probability) in Xianfeng County, while the middle-lower section of Taipinggou Valley has lower flood prevention ability. Moreover, this fact proves that the proposed one-dimensional hydraulics flood model is effective.
A brief review of research on steam condensation heat transfer based on separate effect experiments and diffusion layer theory
Authors: Wang Jue , Wang Ruo-nan , Tang Qing-song , Zhang Xiao-hui , Li Yao 
Published: November 2019

Abstract
Research on steam condensation in the presence of non-condensable gas is needed to support the thermal design of containment and capacity analysis of its cooling systems for nuclear power plants (NPPs). Based on classical and newly published literatures in related fields, the theoretical and experimental achievements are analyzed in this paper and research emphasis is consequently summarized. Considering the design and application characteristics of small-sized NPPs, several prospects of following-up study are proposed, which can be referenced in future work.
Mid and long-term hydrological classification forecasting model based on KDE-BDA and its application research
Authors: Liu Yong , Yin Zhijie , Zhang Ying , Wang Qin 
Published: November 2019

Abstract
In view of the uncertainties in the current mid and long-term hydrological forecast results, a mid and long-term hydrological classification forecasting model based on KDE-BDA is built and its application research is performed. The kernel density estimation method (KDE) is used to improve the distribution density function estimation method in the conventional Bayesian discriminant method (BDA). Based on this, a mid and long-term hydrological classification prediction model based on KDE-BDA was built. An example of its application is demonstrated in the runoff forecast of the Danjiangkou Reservoir in the autumn of September. The results show that different forecasting factors have different forecasting ability for runoff classification (flood, normal, dry). Among them, the 500hPa height field factor has higher forecasting ability for the Danjiangkou runoff category (flood, normal, dry), and the 100hPa height field factor, SST and circulation characteristics have a good indication of the runoff’s flood state. The results of Half-Brier score show that the combined forecasting model combines the forecasting advantages of each factor, so the forecasting effect is the best. The pass rate in the simulation period was 89.8%, and the pass rate in the inspection period was 87.5%. The simulation and forecast results were relatively stable.
Research on Solar Energy Resources in Hexi Region of Gansu Province
Authors: Dan Wu , Tingting Meng 
Published: November 2019

Abstract
The excessive exploitation and utilization of non-renewable resources by humans has caused a lot of energy depletion, which has caused great changes in the climate system and has a great impact on human production and life. The development and utilization of new energy by human beings has become a hot issue in recent years. As the most important renewable green energy source, solar energy resources have been widely used in many countries and regions. The paper analyzes the solar radiation in the Hexi region for about 21 years in time and space to analyze the availability of solar energy resources in Hexi area.
Experimental study on energy-saving of highway tunnel lighting with symmetric lamp distribution
Authors: Yang Chao , Fan Shijuan 
Published: November 2019

Abstract
In order to study the energy-saving of highway tunnel lighting experimentally with low cost, a similar tunnel model was designed and used for the lighting experiment. Yanlieshan highway tunnel was selected as the study object. On the basis of the tunnel structure sizes (TSS) and the selected LED lamps, the optimized symmetric lamp installation parameters (OSLIPs) for energy-saving were obtained with the lighting parameters optimization model (LPOM) on symmetric lamp distribution (SLD) from reference. Based on the TSS and the OSLIPs, a simulation experiment of the tunnel lighting was accomplished with DIALux. A similar tunnel model was designed and built according to the TSS and similarity theory, and a tunnel model lighting experiment with SLD was carried out. The road-surface-illuminance (RSI) data of the tunnel model lighting experiment were compared with the simulation experiment results. The comparison of horizontal RSI from the two methods coincide well, which proves the LPOM is correct, the lighting experimental study with similar tunnel model is feasible and the experiment method in this study is valid.
Research on Chongqing Mountain Flood Disaster Risk Assessment System Based on AHP-GIS
Authors: Qianzhu Zhang , Huoming Zhou , Yang Lu , Ruiyi Zhao , Qiang Gao , Jianmei Yan , Kun Sun 
Published: November 2019

Abstract
The risk of mountain flood disasters is the fundamental factor restricting the occurrence of disasters. The analysis and assessment of disaster risks is the basis for disaster risk management. Through the investigation of mountain flood disasters from 2013 to 2015, the basic information such as hydrometeorology, topography, socio-economic and mountain flood disaster prevention and control situation in mountain flood disaster prevention and control areas were found out. Taking the city of mountains-Chongqing as an ex-ample, this paper considered the results of mountain flood disaster investigation and evaluation in recent years, and divided the risk evaluation indicators into two types of first-level indicators: rainfall and under-lying surface, and the secondary indicators were subdivided into comprehensive rainstorm indicators, critical rainfall, topographic relief, land use convergence capacity, soil texture and river network density. Using AHP to set the weight coefficient of each level indicators, those showed that heavy rain conditions, critical rainfall and topographic relief were important factors impacting the mountain flood disasters, and the land use convergence capacity had the minimum weight coefficient. Through GIS superposition analysis, the risk index of mountain flood disasters in the region were obtained. The western, southeastern and northeastern Chongqing were high risk areas for mountain flood disasters, which provided decision-making basis for mountain flood disaster risk management.
Experimental Study of High Purity CO2 Concentration from Syngas by a Dual-bed Six-step Pressure Swing Adsorption Process
Authors: Chou Cheng-Tung , Hsu Tsai-Feng , Shen Chen-Yu , Lee Shao-Hua , Yang Hong-Sung 
Published: November 2019

Abstract
With the industry development, the concentration of greenhouse gas increases year by year. Consequently, how to reduce the emission of greenhouse gas has become an important issue all over the world. This research is the experimental study of concentrating high purity CO2 from syngas after oxy-fuel combustion by a dual-bed six-step pressure swing adsorption (PSA) process. The composition of feed gas used in the process was simulated as 95% CO2, with N2 balanced. We chose UOP 13X zeolite as the adsorbent according to the adsorption capacity and selectivity of CO2 over N2 comparing to other adsorbents studied. The breakthrough and desorption curves were discussed by changing different feed flow rate and temperature. Next the carbon dioxide was purified by a dual-bed six-step PSA process. After exploring the effects of variables on performance of PSA process, we found the best operating conditions for obtaining high purity carbon dioxide among our experiments. The best operating conditions are feed pressure 3.45 atm, countercurrent depressurization pressure 0.48 atm and purge to feed ratio 0.105. The experimental results of best conditions are 99.94% purity and 42.84% recovery of carbon dioxide at bottom product, energy consumption 0.304 GJ/tonne CO2 and productivity 0.136 kg CO2/kg adsorbenth.
Study on Evaluation System of Green Landfill Based on Life Cycle —— Illustrated by the Case of Hangzhou Tianziling Landfill
Authors: Bingru Zheng , Die Chen , Chi Guan 
Published: November 2019

Abstract
Recently, the environmental problems of Hangzhou Tianziling Landfill have brought great troubles to the lives of nearby residents. Landfill is the main method of garbage disposal. The requirement of green environment protection about landfill is becoming higher and higher, and the way in which the important indicators affects the environmental of landfill has also followed by lots of interest. In this paper, on the basis of the whole life cycle evaluation index system of landfill, the evaluation index of green landfill is increased, and then the evaluation index system of green landfill based on the whole life cycle is constructed by using hierarchical analysis method. Using Hangzhou Tianziling Landfill as a case to establish the practical model; establishing the hierarchical index weight and calculating it. Comparing the weight of each index shows that the proportion of odor concentration in environmental protection index is largest, and finally the comprehensive evaluation score of Hangzhou Tianziling Landfill based on life cycle is obtained.
Stability Control of Surrounding Rock in Large-Section Weak- and Thick-Coal Open-cutting Roadway in Deep Mine
Authors: Fan Jihong , Shen Shibao , Tao Guangzhe , Dai Desheng , Wu Jilu 
Published: November 2019

Abstract
In view of the supporting problems in the large-section weak- and thick-coal open-cutting roadway in the deep coal mines, this paper adopts numerical simulation, theoretical analysis, and field measurement to study the deformation and failure law of the surrounding rock and explore corresponding control measures. The results show that: 1) The surrounding rock of open-cutting roadways is divided into a fracture-through zone, a fracture development zone, and a micro-fracture zone. When the width of the roadway is 12 m, the maximum height of the fracture-through zone is 2.6 m, and the two-side fracture zone is 1.1 m, and the height of fracture-through zone of the top plate is 1.5 m. 2) Considering the actual geological production conditions, this paper proposes the control measures combining high-strength bolt support, large-diameter anchor cable support, and single column reinforcement, and expounds its control mechanism. In addition, on-site industrial test verifies the rationality of the supporting plan.
Research on the Influencing Factors of National Energy Economy Based on Fixed Effect Model
Authors: Jinghao Jia , Jianhong Cheng 
Published: November 2019

Abstract
This paper analyzes and studies the influencing factors of national energy economy. By constructing a fixed effect model and taking China as an example, it makes a statistical analysis of the influencing factors of China’s national energy economic efficiency. This paper Introduce China’s empirical data from 2000 to 2010 to deepen the understanding of energy issues, and then analyze the inherent causes of the situation from the actual situation of the country. This study can quantitatively analyze the status quo and differences of energy economic efficiency among countries and regions, and study the relationship between its influencing factors on energy economic efficiency, which can promote the sustainable and coordinated development of the country.
Research on Land Use Ecological Security Pattern Construction of Hilly Cities in Hunan
Authors: Zhai Duanqiang , Xia Huiwen 
Published: November 2019

Abstract
The Landsat satellite image of Liuyang City was selected in June 2018, and the land use landscape type map was generated based on RS and GIS technology. The landscape index was calculated by the FRAGSTATS to analyse the landscape pattern of urban land use in Hunan hilly areas, and the minimum cumulative distance model was used to construct the urban ecological pattern. The results showed that: ①The most dominant landscape types in the city area were forest lands with high degree of aggregation and cluster distribution. The fragmentation of landscape types in urban areas was obvious, especially the grassland fragmentation. ②There are few landscape types in the city area, and there are obvious dominant landscapes. ③The article builds an ecological security pattern by searching for ecological sources, corridors and nodes, and guarantees the ecological security of hilly urban cities.
Effect of C/N on removal of chlorpyrifos in constructed wetland system
Authors: Fan Zhiyu , Sun Xuefei , Quan Yue , Zhu Weihong , Jin Mingji 
Published: November 2019

Abstract
This study used C/N as a variable to investigate the removal effect of chlorpyrifos and the microbial community structure in the constructed system. As a result, with the increase of C/N within the range of 2-20, the removal rate of chlorpyrifos, the system matrix and the concentration of chlorpyrifos in plants all increased. The diversity of microbial community in the system was significantly affected by C/N. When C/N was 5, the microbial community diversity was the most abundant. Proteobacteria and Alphaproteobacteria were the dominant phylum and class.