bluuebunny/crossref_metadata_2025_split huggingface dataset:
Parallel Efficiency Analysis of Large Increment Method Based on OpenMP
Authors: Hongxue J , Danbing L , Xila L 
Published: June 2021

Abstract
Large Increment Method (LIM) is a novel force-based method based on the generalized inverse matrix theory for solving material nonlinear problems in small deformation and small displacement conditions. For the spatial parallel computation, LIM can compute the constitutive equations of each element in parallel. By analyzing the parallel-calculating characteristics of LIM, the OpenMP is used for the parallel computation in spatial domain. Through the parallelism analysis of the spatial and time domain for LIM, it shows that LIM has an excellent parallel efficiency in space parallel computation.
Design of index and standard system of water-saving carriers in Jinhua City
Authors: Xu Haibo , Wang Yuehua 
Published: June 2021

Abstract
According to the needs of water-saving carrier construction and assessment in the process of national water-saving society innovation pilot in Jinhua City, the index system, construction standard and assessment method of water-saving carrier construction are analysed and studied. Combined with the water-saving demand of urban and rural life, this paper puts forward the evaluation mode of four construction carriers of Jinhua water-saving community, school, organ and institution, hospital, which provides support for the construction of water-saving society in Jinhua City.
Research on site selection of old campus bookstore based on the combination of space syntax and analytic hierarchy process——Take Huangjiahu Campus of Wuhan University of Science and Technology as an example
Authors: He Minghui , Xu Hong , Wang Rui , Chen JianJun , Liu SiWei , Li TianYue 
Published: June 2021

Abstract
The bookstore is an integral part of campus public service, and it is an essential place for reading, learning and spending for teachers and students. Provided the current management and development problems faced by old campus bookstores, this article takes the old campus bookstore in the Huangjiahu campus of Wuhan University of Science and Technology as a research case while uses space syntax theory, Depthmap software, and axis models to analyzes and evaluate accessibility, and then optimize campus old location and layout of bookstores. Simultaneously, by using the analytic hierarchy process, the simulated bookstore sites of selection in the campus are tested at the target level, decision level and plan level. This article aims to propose optimization methods for the management and development of old campus bookstores from the perspective of spatial location selection through qualitative quantification and provide constructive references for similar research.
Smart growth of historic district under the resilience and sustainability: A case study of Shuanglong Lane in Kaifeng
Authors: Huang L W , Wu Z W , Fan Y , He Y H 
Published: June 2021

Abstract
Historical blocks are rich in cultural relics and historic buildings, and their renewal and activation play an important role in improving the decline of the city center and enhancing the quality and taste of the city. Based on the concept of resilience and sustainability, combined with the regional characteristics, cultural background, and the actual situation in the renovation and renewal of Shuanglong Lane, this paper explores the smart growth strategy and practice of the historical district in the three-dimensional framework of the environment, business form, and society, through the integration of physical space, the reconstruction of commercial space and the harmony of social space. The purpose is to promote the same type of block in the process of protective renovation and characteristic rejuvenation, to resist disasters in the form of a complete community, and to improve resilience, adaptability, and sustainable development.
The Impact of Temporary Projects on the Ecological Environment and Their Corresponding Protection Measures in the Construction of Highways in Northern Tibet
Authors: Feng Zhiqiang , Xue Rongrong , Ge Liyan 
Published: June 2021

Abstract
In order to facilitate the construction of highway projects, temporary works are generally set up along the road. The temporary works of the highway project mainly include borrow yard, spoil yard, gravel stockyard, stone field, construction plant and construction road. The setting of temporary projects will cause damage to the surrounding ecological environment. Taking the Nala Highway as an example, this paper will analyze the ecological environment impact brought by the temporary construction in detail, and propose corresponding protection measures.
Analysis of the Impact of Fiscal Policy on the Innovation Performance of New Energy Vehicle Companies-An Empirical Analysis Based on Panel Data of Listed Companies
Authors: Hou Li , Liu Qin 
Published: June 2021

Abstract
Based on the panel data of listed companies in China’s new energy automobile industry from 2015 to 2019, an empirical test of the impact of government direct and indirect subsidies on corporate innovation performance is studied, and the mediating role of corporate innovation input is studied. The research results show that direct government subsidies have a positive impact on the innovation performance and investment of enterprises, and indirect government subsidies have a positive impact on the innovation performance and investment of enterprises. At the same time, corporate innovation investment plays an intermediary role in government subsidies and innovation performance. On the basis of the above conclusions, it provides a reference for the government to evaluate the effect of subsidies and adjust subsidy policies.
Application Of Characteristic Protection Of Historical And Cultural Blocks In Urban Renewal Through The Investigation And Research In Jinan By Taking Furong Street-Qushuiting Street As An Example
Authors: Sun Yue 
Published: June 2021

Abstract
Many historical and cultural blocks have faced challenges due to the acceleration of urban modernization in China, not only the aging of urban buildings and municipal infrastructure, but also transformation, construction and renewal of the urban have a large-scale impact on the historical and cultural blocks, the fundamental changes in the way of life and street function of the citizens put forward new requirements for the physical environment of spatial environment of historical and cultural blocks. The healthy and orderly development of the traditional scenes of historical and cultural blocks can bring different vitality and economic points for the development of the city. Taking urban renewal of Jinan and historical block protection as the discussion point, this paper discusses the present situation, characteristics and existing problems of Qushuiting Street and Furong Street from the space structure, historical context and humanistic characteristics, so as to explore the integration, inheritance and development of the artistic style and cultural connotation of traditional historical and cultural blocks in urban renewal.
Research on Outdoor Thermal Environment of Campus in Cold Area in Winter with Different Underlying Surfaces
Authors: Luo Wei , Hao Sheng , Wang Yuzhuo , Xu Zenan 
Published: June 2021

Abstract
Thermal environment has many influences on people who use outdoor space. The thermal environment of university campus is an important part of educational living space. In campus planning and design, the impact of landscape design on the thermal environment should be considered. This paper measures the thermal environment of the campus of Xi’an Eurasia University and conducts questionnaire survey to obtain the Library and Nanshan Road, East Gate Square and Parking lot 4 different underlying surface characteristics of the impact on the thermal environment. The results show that the SET* correlation of different underlying surfaces: Library> East Gate Square> Nanshan Road > Parking lot. Shade, grassland, and water bodies can effectively reduce the average radiant temperature. Among them, the humidification and cooling effects of the shade are the best, and the cooling ability of the grass is second only to the shade. In the process of campus environment design, reasonable adjustment of the relationship between the shade of the grass and other underlying surfaces can effectively improve the outdoor thermal comfort of the campus in winter and create a comfortable outdoor activity place on the campus.
Analysis on the Environmental Characteristics of Old Residential Areas in the North from the Perspective of Urban Renewal
Authors: Xian Ning , Chai Lin Xi 
Published: June 2021

Abstract
In the process of urbanization construction, we should not only consider the economic construction of the city, but also consider the environmental construction of the city, especially the environmental construction of some old residential areas. The purpose of this paper is to explore the environmental characteristics of the old residential areas in the north from the perspective of urban renewal, and to provide a theoretical basis for the environmental construction of the old residential areas in the north. Using operational research-based analytic hierarchy process (AHP) and statistical-based principal component analysis (PCA), the environmental characteristics of the old northern residential areas are established, the weights of each index are determined, and the environmental characteristics of the old northern residential areas are put forward from the perspective of urban renewal.
Research on Traffic Condition Discriminant Technology of Urban Intersections Under Intelligent Lighting System Based on Fuzzy Comprehensive Evaluation
Authors: Hao S Y , Zhao N L , Wu Y Z , Li J H , Wu K M , Jiao C W 
Published: June 2021

Abstract
Firstly, the basic traffic data collection methods based on intelligent lighting system are introduced, including RTMS data collection and video data collection. Then, based on the fuzzy comprehensive evaluation, a traffic condition discrimination model of urban intersections under the intelligent lighting system is established. The average speed, stop delay and queue length detected by the intelligent lamp post collection equipment are selected as evaluation factors, and the traffic status of signalized intersections is defined as smooth traffic, normal congestion and severe congestion. The research results have realized the fine discrimination of urban intersection traffic operating condition under the intelligent lighting system.
Simulation of storm surge and wave due to Typhoon Lekima in 2019
Authors: Yang Wankang , Yang Bin , Yang Qingying , Ou Jian , Xu Xuefeng 
Published: June 2021

Abstract
Zhejiang province is located at the southeast coast of China and vulnerable to typhoons generated in the northwest Pacific Ocean. An integrally coupled surge-wave model is developed and applied to the simulation of storm surge and wave induced by typhoon Lekima occurred in 2019. When considering wave-induced forces and using identical unstructured grid in coupled model, the model shows high accuracy and reproduces the typhoon process well. The distribution of maximum surge level shows great spatial differences along Zhejiang coast. Due to shelf geometry and shallow water effect, peak surge level rises significantly near Zhejiang coast. In addition, the peak surge levels on the right side of typhoon track are much higher than that on the left side. Contrary to characteristics of storm surge levels, significant wave height decreases rapidly near the Zhejiang coast due to shoaling, blocking of islands, and wave breaking.
Exploration on road maintenance of new infrastructure enabling intelligent expressway
Authors: Wu Honggang , Liu Xueying 
Published: June 2021

Abstract
During the 13th Five-Year Plan period, “new infrastructure” was written into the “Outline for the Construction of a Transport Power”, and the Ministry of Communications made it clear that intelligent maintenance was the focus of technological innovation. Taking Hangzhou-Shaozhou-Ningbo Expressway as an example, this paper discusses the contents of expressway road maintenance based on new infrastructure construction, and finds the following prominent problems: lack of unified industry standards; there are disadvantages in software assurance; insufficient interaction of elements; the level of regional integration is not high. By establishing the theoretical model of “MADD” and innovating the maintenance mobile terminal platform, the corresponding solutions and strategies are further proposed: strengthening the top-level design and establishing a unified standard; strengthen software matching and promote overall collaboration; strengthen the integration of construction and use, promote the interaction of elements; we will strengthen communication mechanisms and promote regional coordination. The result shows that the road maintenance of new infrastructure enabled expressway is of great significance. The research of this paper has certain reference significance for the further development of highway maintenance and construction in Zhejiang Province in the future.
Spatiotemporal Variations of NDVI in Xinjiang Tianchi Bogda Peak natural reserve from 1990 to 2015
Authors: Wu Jiaqi , Chen Liang , Fu Zhuo , Xiao RuLin , Wen Ruihong , Wang Xuefeng 
Published: June 2021

Abstract
The spatial characteristics of NDVI of Xinjiang Tianchi Bogda Peak natural reserve are analyzed by using the AVHRR and MODIS NDVI date from 1990 to 2015. The temporal change of NDVI of this natural reserve is analyzed by using one variable linear regression and the correlation analysis. The results indicate that, the NDVI values are higher in north than those in south in 2015. As the altitude increases, the NDVI first increases, and then decreases. According to the grading results, the proportion of the moderate vegetation grade is larger than others. From 1990 to 2015, the change rate of NDVI is 0.0171/5a (p > 0.05). The NDVI of this natural reserve shows an increasing tendency, except for 2005-2010. The results of this study provide a theoretical basis for the management department to fully understand the vegetation status in the natural reserve, and to make policies and measures accordingly.
Evolution of prototype basin and analysis of lithofacies paleogeography in Hongqi depression
Authors: Shen Wenjing , Peng Wei , Ma Guangyu 
Published: June 2021

Abstract
Based on the analysis of three-dimensional seismic data in Hongqi sag, it is clear that the structure of the depression is controlled by volcanic mechanism, controlled subsidence fault and secondary fault. The structure is complex. The structural framework of the residual basin changed greatly due to the multi-stage tectonic movements. It is not conducive to the understanding of the prototype and lithofacies paleogeography of the depression. Through the study of the recovery of the prototype basin in the key period, the basin prototype of different construction and transformation periods is constructed. The paleogeographic characteristics of lithofacies in different periods are determined. Then, combined with the analysis of single well facies, lake water advance and retreat and sediment supply conditions, the lithofacies paleogeographic characteristics of different periods are determined. The sedimentary period of Tamulangou formation developed a lithofacies paleogeographic pattern of coexistence of volcanic rocks, fan delta and lakes. During the sedimentary period of Tongbomiao formation, the lake basin develops. But the water body is shallow. The material source is sufficient. The fan delta shallow lake sedimentary assemblage is developed. During the deposition period of Nantun formation, the lake basin further expanded rapidly. The water body became deeper. The lake basin became larger. The fan delta shrank. It is fan delta lacustrine sedimentary assemblage. The sedimentary period of Damoguaihe - Yimin formation is a fan delta lacustrine sedimentary assemblage dominated by lacustrine deposits.
Experimental Study on Crack Characteristics of Damaged Reinforced Concrete Beams strengthened with CFRP
Authors: Huang Junhao , Qian Yongjiu , Yang Huaping , Li Jing , Pan Xingwei 
Published: June 2021

Abstract
The bending tests of 2 control beams and 6 damaged beams strengthened with CFRP (DBSC) were carried out to study the effects of adhesive layer thickness, number of CFRP layers and reinforcement ratio on crack characteristics of DBSC. The test results show that the crack development of the DBSC is accelerated and the crack resistance of the DBSC is reduced compared with the intact beam. With the increase of the thickness of the adhesive layer, the crack development of the DBSC is slowed down and the crack resistance is improved. Increasing the number of CFRP layers is helpful to restrain the crack development of DBSC under high load level. The increase of reinforcement ratio can significantly improve the crack resistance of DBSC.
Research on detection technology of squeezed branch and disk pile under boulder geological condition
Authors: Zhu Wen-Tong , Guan Wei-Dong , Li Hai-Qin , Qiu Xu-Fu 
Published: June 2021

Abstract
The detection methods of the cavity and cavity size and pile quality of squeezed branch and disk pile are not perfect. Based on the 65 pier of a viaduct in Zhongshan City, this paper uses caliper, cross hole acoustic wave method, core pulling method and tube wave method to detect the squeezed branch and disk pile, and compares and analyzes the advantages and disadvantages, applicable conditions and detection results of each method. It can be seen from the test results that both caliper and cross hole acoustic wave method can detect the length of squeezed branch pile, while core pulling method and tube wave method can detect the quality of pile body and the thickness of sediment at the bottom of pile. The test results are basically consistent and verified with each other, and the specific data such as the length of branch and the thickness of sediment are slightly different. In this paper, caliper, cross hole acoustic method, core pulling method and tube wave method are verified and analyzed to provide ideas and support for the later detection of squeezed branch and disk pile.
Flexural behavior analysis on RC simply supported girder strengthened by adding diagonal brace
Authors: Mao Dejun , Du Yanbin , Zhang Zongxing , Chen Xu , Yu Wenzheng 
Published: June 2021

AbstractAdding the diagonal bracing to strengthen RC simply supported beam bridge has certain engineering application space. In order to study the flexural performance of the strengthened members, the finite element model was established by Midas/Civil to calculate and analyze the load effect of 20m span RC simply-supported T beam under 12 flexural strengthening conditions. The results showed that the connection form of diagonal brace has little influence on the deformation behavior of the strengthened beam. After reinforcement, the positive moment and deflection of mid-span of the main beam can be reduced by more than 50%. At the same time, the main beam appears negative moment, horizontal reaction force, and vertical negative reaction force may occur. The reasonable arrangement of the brace position can ensure that the main beam does not have vertical negative reaction force, and the main beam negative moment and horizontal reaction force, the horizontal and vertical reaction force of the diagonal brace are controlled to obtain ideal load effect results.
Earthquake loss analysis and assessment of group buildings in Songyuan area
Authors: Wang Haoming , Su Siqing , Jia Huizhu 
Published: June 2021

Abstract
To study the earthquake damage and loss of group buildings in towns and urban areas of Songyuan, the simulation analysis of earthquake damage of group buildings in some areas of Chaganhua town and urban areas of Songyuan was conducted. In this paper, based on the building performance evaluation method in FEMA-P58 and the Standard for seismic resilience assessment of buildings (GB/T 38591-2020), the different methods between China and the US were eliminated. Firstly, the distribution of earthquake damage of various buildings was analyzed. The economic losses of the two regions are analyzed and compared by using PACT software to evaluate the repair costs and repair time of buildings under different earthquake levels.
Research and Analysis of Civil Airport Asphalt Concrete Pavement Damage Cause Evaluation and Countermeasure
Authors: Su J , Xiao F , Liu Z , Kong L , Wang P , Li B 
Published: June 2021

Abstract
Asphalt concrete pavement is characterized by convenient construction and maintenance, ride comfort, low noise, and strong adaptation and coordination deformation. Therefore, it has been gradually used in civil aviation transport airport runway, especially in recent years, the proportion of runways used in large hub airports has increased. However, asphalt concrete pavement also has many issues that is not conducive to the security of airport operation and management under the influence of traffic load, natural environment, and material performance. This paper analyzes and studies the causes and countermeasures of the damages through the investigation of several cases of asphalt concrete pavement damages in China, so as to provide reference for the extensive application and maintenance management of asphalt concrete pavement in airports in the future.
Analysis of Optimal Internal Water Pressure During The Operation Period of Ultra-long Water Tunnel
Authors: Zhu Qunyan , Dai Chunhua , Zheng Hanzhong 
Published: June 2021

Abstract
At present, the per capita shortage and imbalance of water resources are the basic national conditions of China, water-conveyance tunnel can solve some this problems. Because the tunnel project is a covert project, people cannot accurately know the operation of the project in advance, and can only basically know the operation state of the tunnel through the existing test means, thus bringing certain blindness to the tunnel operation management. This paper takes the Qiandao Lake Water Distribution Projec as an example, the stability of surrounding rock under different internal water pressure is analyzed and studied by using numerical simulation, and an optimal internal water pressure is obtained, which provides some guidance and suggestions for tunnel operation management and ensures the security of operation.[1][2][3][4][5]
Spatio-temporal distribution and correlation analysis of river water quality in City Center of Pinghu
Authors: Lei Yu 
Published: June 2021

Abstract
Based on the historical data of river water quality in the central city of Pinghu from 2014 to 2018, the temporal and spatial distribution of river water quality changes and its influencing factors were analyzed, and the correlation between the main monitoring factors was identified by linear regression. The results show that water quality of the main rivers has improved significantly, and the concentrations of COD, NH3-N and TP in most rivers can reach the class III standard of surface water. In recent years, the water quality of the rivers shows a significant improvement trend, and the improvement effect of NH3-N concentration is the most obvious. The water quality of general rivers tends to improve, but the effect of treatment is relatively insufficient. Spatially, the water quality in the northern part of the flood control area is worse than that in other areas, and the main river is better than the general river. The fitting effect of COD, NH3-N and TP is good, and there is a significant correlation between the main river.