bluuebunny/crossref_metadata_2025_split huggingface dataset:
Power grid operation and maintenance investment allocation based on gridded information entropy multiple attribute evaluation Optimization Technology Research
Authors: Yu Min , Liu Fuyan , Shen Jie , Liu Jinpeng 
Published: July 2020

Abstract
Under the new situation, China’s power grid enterprises will face a situation of limited funding for operation and maintenance and increasing pressure on cost control. Therefore, further improving the scientificity of grid operation and maintenance investment allocation is of great significance to the operation and development of grid companies. Based on the problems of current operation and maintenance input allocation, this paper proposes a grid operation information entropy multi-attribute evaluation-based optimization technology for power network operation and maintenance input allocation, and combines empirical analysis to verify the scientific rationality of the allocation technology. The optimization technology can provide support for grid operation and maintenance investment decision-making and enterprise lean management.
Analysis of Energy Saving Effect of Large Double-speed Salient Pole Synchronous Motor in Renovation of Pumping Stations
Authors: Wang Zhixiang , Deng Bo 
Published: July 2020

Abstract
The water levels influenced by seasons are varying, which needs a great variation of pumping head. The motor now used with complex speed equipment and high cost cannot satisfy the requirement. The paper takes the renovation and transformation of Song Long pumping station as an example, analyses the effect of using large double-speed salient pole synchronous motor. It offers a comparative analysis of the energy-saving benefit, which has three major evaluation indexes: device efficiency, unit energy loss and the benefits. The related research results can be referenced in the renovation and transformation of pumping station.
Residual mining caving face over the roadway and the key technology of deformation
Authors: He Jun 
Published: July 2020

Abstract
Multi layer multi angle face roadway of coal mining face of residual mining brings technical challenges to the safety of the working face mining. With the background of the 6212 residual coal mining face in a mine in Shanxi, the deformation laws of the surrounding rock in the slanted roadway, the bottom coal slanting roadway and the intersection point are analyzed by numerical simulation. The simulation results show that at least the reinforcement measures should be carried out by 20m in the empty lane, and the plastic zone in the floor of the roadway along the top is obviously developed, and the stress concentration of the surrounding rock is high, and the support and management should be strengthened. In view of the space position of the site, the key technical measures are put forward, such as dense support or wood stack, anchor net cable, and super high water material grouting pre-filling, so as to ensure the safe recovery of the residual mining face.
Research on Wind Power Ultra-short-term Forecasting Method Based on PCA-LSTM
Authors: Wu Siying 
Published: July 2020

Abstract
Wind power ultra-short-term forecasting can provide the support for adjusting the intraday power generation plan, carrying out the incremental spot trading of wind power, and improving the utilization of wind power. In order to improve the forecast accuracy of wind power, a wind power ultra-short-term power forecast method based on long-term-term memory (LSTM) network is proposed. First, the principal component analysis method is used to reduce the multivariate meteorological time series dimension. Then by using the cyclic memory characteristics of LSTM network to model multi-dimensional time series, the nonlinear mapping relationship between meteorological data and power data is established, and the wind power forecast is finally realized. The actual data of the eastern China wind farm is used to verify the results. It shows the method established in this paper can effectively use the meteorological and power data to forecast the wind power, and compared with the traditional time series, BP neural network method, the method in this paper has higher forecast accuracy and has broad application potential.
Analysis of Natural Ventilation Design in Large Space of Railway Station
Authors: Han Xiaolin , Zhang Hui , Zhu Ting , Wang Li 
Published: July 2020

Abstract
Generally, natural ventilation is a useful passive design method to improve thermal environment, especially in large space buildings. Taking Zhengzhou East Railway Station (Zhengzhou ERS) as an example, this paper discussed the natural ventilation of Zhengzhou ERS by comparing experimental test with simulation of Computational Fluid Dynamics (CFD), based on local climate characteristics. Then, combined with the Zhengzhou ERS model, optimized natural ventilation design was proposed by comparing the natural ventilation conditions of different types of roof forms. And some ideas and reference were provided to improve indoor thermal environment and passive energy-saving design for large-scale railway station buildings.
Research on Coordinated Development of Ecological Resources, Environment and Economy and Society in Sanjiang Region
Authors: Xue Tingting , Zhang Yaosheng , Wang Xue , Zhao Chenchen , Li Lan 
Published: July 2020

Abstract
An excellent environmental resource environment is a necessary condition for coordinated economic and social development in the Sanjiang region. This article uses four methods of literature review, qualitative analysis and quantitative analysis, static analysis and dynamic analysis, and a combination of theory and empirical research to comprehensively evaluate the degree of coordinated development and coordinated development of eco-resources, environment, economy and society in the Sanjiang region. Analyze the coordinated development of ecological resources, environment, and economy in the Sanjiang region and its spatiotemporal evolution, and propose specific suggestions and countermeasures. The study found that economic development and environmental protection are the two main issues facing social development in the Sanjiang Plain. On the one hand, we must rely on science and technology to vigorously develop the economy, promote the upgrading of the industrial structure, and then promote the development of regional society. The protection of the environment and avoiding environmental degradation direct constraints the development of human culture.
Study on buffeting performance of double cantilevers of П type beam cable-stayed bridge under oblique wind
Authors: Zhang Yao , Li Han 
Published: July 2020

Abstract
Based on the aeroelastic model experiment of a long-span cable-stayed bridge, the vertical and torsional buffeting responses of π beam under different wind deflection angles are studied, and the influence of wind attack angle on buffeting response is further studied. The results show that the vertical and torsional buffeting displacement responses of the main girder increase in quadratic function with the wind speed. Moreover, the maximum value of buffeting response is not at the 0° wind deflection angle, and the position of the most unfavorable buffeting response is different under different attack angles. With the increase of wind deflection angle, the vertical and torsional buffeting displacement response of π type girder generally decreases first and then increases, then decreases and then increases, presenting the phenomenon of “three twists and turns”. The increase of wind deflection angle to buffeting response is generally between 10% and 20%, and the maximum can reach 40%. The comparison between the test results and the analysis results shows that the influence of the oblique wind effect and the wind attack angle on the buffeting response must be considered when analyzing the buffeting response of the cable-stayed bridge.
Estimating Economic Benefits from Urban Green Space in Shaanxi Province with a Simultaneous Equations Model (SEM)
Authors: Duan Zhaowen , Jiang Rui , Zhang Tingwei 
Published: July 2020

Abstract
In this paper, the economic benefits from urban green space in Shaanxi Province are estimated with a simultaneous equations model (SEM) in this paper. The conclusion is drawn as follows :(1) With the increase of investment, the urban green space of Shaanxi province has been continuously expanding. However, the new urban green space has not generated any social and economic benefits yet, and each square kilometer of it requires an investment of 80 million yuan of GDP. (2) Investment plays an important role in generating new urban green space. The coefficient of investment (a2=4.89, p<0.05) indicates that a private real estate investment of 1 billion yuan can generate 4.890 square kilometers of urban green space. (3) Among five urban spatial models, the expansion of urban transportation space and urban industrial space can promote the growth of GDP and bring new social and economic benefits. In the end, possible reasons on these results are discussed in order to provide a frame of reference to promote the development of urban green space planning in Shaanxi province.
Experimental study on detection of void in concrete pavement slab by FWD
Authors: Wu Yintan , Liu Tao , Zhi Huang , Chen Binbin , Zheng Zhigang , Fang Hongyuan , Yang Kangjian 
Published: July 2020

Abstract
In grouting process, first of all, detection technology should be used to detect the engineering disease area, so as to determine the location of the disease more accurately, which is not only conducive to achieving the desired reinforcement effect, but also can save unnecessary economic expenses. In this paper, the normal pavement slab and the pavement slab with different void states are constructed by self-made test device. Then the deflection values of the normal pavement slab and the pavement slab with different void states are tested by deflectometer FWD. Based on the test, the deflection laws of the normal pavement slab and the pavement slab with different void states are compared and analyzed. The test results show that FWD can accurately identify the condition of pavement void; the deflection of the void position and the area near the void position is obviously larger than that of the normal panel, and the deflection of the void position is proportional to the area of the void area.
Quantitative Analysis of How China’s Six Major Scientific & Technological Program to Include Environment Protection based on Data 1982-2015
Authors: Feng Ying , Xiang Ning 
Published: July 2020

Abstract
Environment protection has been a trans-disciplinary public policy issue on the global government agenda, including China. However, research on how PRC China’s six major S&T program to include environment protection remains a research vacuum. The core research question is how environment protection has been included in China’s major S&T programs in a quantitative way. The conclusion is: a) the impact of environment protection is growing bigger; b) the attention level to environment protection is getting higher and c) the fiscal allocation to environment protection by the 6 S&T programs is getting more. Further, this paper estimates the budget sum and ratio of “Three Major S&T Programs” to environment protection and its five-year ratio from 2001-2013 for the first time.
Research on Fuzhou Logistics Development Status under the Background of National Logistics Hub City Construction
Authors: Li Youlin , Liu Dan , Ke Shengjie 
Published: July 2020

Abstract
In the national logistics hub layout and construction plan, Fuzhou city is listed as the carrier city of the national logistics hub layout, which brings new opportunities to promote the comprehensive transportation development of Fuzhou city, improve the national logistics level, realize the optimization and upgrading of industrial structure and open economy. This paper analyzes the current status of logistics development in Fuzhou, the regression model is used to predict the future freight volume of Fuzhou city, combined with the predicted results, the paper puts forward some countermeasures for the better development of logistics industry in Fuzhou.
Evolutionary Game Study on Technical Cooperation Innovation of Photovoltaic Enterprises with Multi-agent Participation
Authors: Hu Jun , Wu Junmin , Wu Jie , Sheng Yongxiang , Shi Qinfen 
Published: July 2020

Abstract
The paper establishes a tripartite cooperative technology innovation game among photovoltaic enterprises, universities and governments, and analyzes the influence of government subsidies, distribution coefficient and other factors on the cooperative technology innovation game; this paper links the innovation cost with government subsidies and preferential policies, and puts forward the factors of innovation investment and policy support into the game model, which is based on the key influencing factors Based on the game payment matrix of three-party cooperation innovation of prime, the equilibrium solution of industry university research cooperation innovation is obtained by evolutionary game method, and the influence of innovation input, policy support, government subsidy and other factors on cooperation technology innovation is explored by numerical and case analysis. The results show that the appropriate subsidies of the government can effectively promote the technological innovation of cooperation between photovoltaic enterprises and universities; enterprises can improve the willingness of cooperation and innovation by properly increasing their investment in innovation; photovoltaic enterprises and universities are sensitive to the allocation ratio of cooperative income and penalties.
Research on the effects of salinity on the microbial community of novel constructed wetland
Authors: Song Weixing , Ji Junyuan 
Published: July 2020

Abstract
In this paper, a novel patent intermittent aeration vertical flow constructed wetland (IA-VFCW) was developed, and the influences of salinity on the microbial community of IA-VFCW were investigated. The experimental results showed that bacterial communities at the genus level were transited along with the salinity varied from 0‰ to 20‰. Ferritrophicum and Psychrobacter show an increasing tendency and the maximum abundance was 14.8% and 9.8%, respectively. As salt concentration was increased, Cyanobacteria was gradually disappeared. A total of 8 samples were carried out by microbiology, ten different genera were associated with the removal of nitrogen which included as follows: Halomonas, Thiobacillus, Cyanobacteria, Denitratisoma, Arcobacter, Acinetobacter, Sulfurimonas, Nitrosomonas, Dechloromonas and Hydrogenophaga.
Water resources allocation in Erhai irrigated district considering catchment water-cycle health
Authors: Su Jianguang , Wang Fei , Gao Rong , Mi Zhou , Chen Jinming , Gu Shixiang 
Published: July 2020

Abstract
In order to realize the healthy circulation of Erhai Basin water system, this paper constructs the Mike basin simulation model of Erhai Basin water resource system through the concept of water resource comprehensive allocation. Which is based on the principle of Erhai Lake water ecological environment protection and follows the principle of ecological priority, sanitary water into the lake, double control of total amount and consumption, and water conservation and emission reduction. The results show that agriculture irrigated area of Erhai Basin should be gradually reduced to 472000 mu, and 48200 mu of wetland ecological pool should be increased, which is used as the collection area of basin landscape and irrigation return water. After adjusting the crop planting pattern according to the depth of water saving in Erhai irrigation area, the goal of controlling the agricultural water consumption to be no more than 201 million cubic metre and the total water consumption to be less than 366 million cubic metre should be achieved. The effect of reclaimed water irrigation on water saving and emission reduction is considerable. The application of reclaimed water irrigation can reduce the amount of clean water used in paddy growth period by 46.4%, and the amount of nitrogen fertilizer applied by 30.2%. The replacement rate of garlic reclaimed water can reach 100%. After the comprehensive allocation of water resources, it can supply 501 million cubic metre of ecological water in the river channels and 359 million cubic metre of water out of the river channels. Through the comprehensive utilization project of farmland drainage water and the construction of ecological regulation and storage belt, all irrigation drainage water should be reused and zero discharge can be realized. TN and TP emissions in irrigated area will be reduced by 39.3% and 46.3% respectively. Compared with the current situation, Erhai Lake water inflow and cleanly water inflow increased by 65 million cubic metre and 134 million cubic metre respectively. The annual average water level of the lake will be 0.15m higher than the current situation.
Analysis and Discussion on the Application of Landscape Plant Configuration in Landscape Design
Authors: Wu Xiaonan 
Published: July 2020

Abstract
This article analyzes the application principles of landscape plant configuration, including the principle of natural priority, the principle of adapting to local conditions, the principle of color suitability, and the principle of seasonal suitability. This article combines the application of landscape plant configuration in garden design, such as the division of spatial areas, independent landscape modeling, the use of plant culture, and the reasonable combination of colors. By studying the use of diverse plant species, we can consider the interaction between plants and native plants precautions, such as the use of foliage plants and flower plants. The purpose of this article is to improve the rationality of landscape plant configuration and the comprehensive application level of garden design.
Global Rainstorm Temporal Variation from 1979 to 2016 Based on the Perspective of Land-Ocean Differentiation
Authors: Kong Feng 
Published: July 2020

AbstractBased on the ERA-Interim precipitation data from 1979 to 2016, this paper uses a variety of statistical methods to diagnose the multi-attribute time series characteristics of global rainstorms and its response to ENSO from the perspective of land-ocean differentiation. The results showed as follows. (1) The global, global land and global ocean rainstorm and their contribution rates showed an increasing trend from 1979 to 2016. The global, global land and global ocean total rainfall showed an decreasing trend. The global land total rainfall showed a distinct sectional change pattern, which first increased from 1979 to 2006 and then decreased from 2007 to 2016. The comparison between the rainstorm and the total rainfall in global land and ocean showed that the rainstorm tended to increase in both ocean and land regions from 1979 to 2016, while the weak intensity rainfall tends to decrease in the globe. (2) The results of MK mutation test showed that the global, global land and global ocean rainstorm changed abruptly in the year of 2006, 1999 and 2008, respectively, without passing the 0.05 significance level test. The global, global land and global ocean total rainfall changed abruptly in the year of 1998, 2014 and 1994, respectively, and passed the test of 0.05 significance level. The rainstorm contribution rates of global, global land and global ocean changed abruptly in the year of 2006, 2003 and 2007, respectively. Only global land rainstorm and global ocean rainstorm passed the 0.05 significance level test. The year of abruptly change of global rainstorm and total rainfall were consistent with the year of ENSO warm event or the year of transition from cold event to warm event. (3) The global land and ocean rainstorm and total rainfall did not change consistently on multiple time scales from 1979 to 2016, but showed inverse phase or forward and lag phase correlation. Fourthly, compared with ENSO, global land (ocean) rainstorm changed earlier (lag) in high energy spectral region. Compared with ENSO changes in low energy spectral region, global land rainstorm changes were consistent or ahead of time, while global ocean rainstorm changes were mainly ahead of time compared with ENSO changes.
Study on Soil Hydrological Characteristics of Highway Spoil Disposal Site in Loess Region
Authors: Wang Jian 
Published: July 2020

Abstract
Due to complex climates, geological conditions and landform types, the ecological environment in the western region of China is very fragile. Thanks to the continuous large-scale construction of highway transportation infrastructure over the years, the social transport services are satisfactorily offered in the western region, but also some negative impacts on the ecological environment in the western region are accompanied, especially a large impact on the land resources in extreme scarce in the western and weak soil & water conservation in loess region. The western loess region faces low land bearing capacity, fragile ecological environment and severe soil & water erosion. Restricted by its own conditions of the spoil disposal site, in the case of lack of rainfall and loose soil, it is very important for later restoration to accurately learn the hydrological characteristics of the spoil disposal site.
Analysis on Variation Characteristics of Annual Precipitation Series in Shandong Province
Authors: Niu Jinqiu , Wang Jun , Cao Shengle , Chen Yi 
Published: July 2020

Abstract
Based on the data of precipitation series of 4 stations with long-term observations in Shandong Province, this paper analyzed the change characteristics of annual precipitation series, including interannual change trend, jump, period and representativeness of the series, by means of sliding average, Mann-Kendall rank correlation test, ordered clustering analysis, Fourier analysis, wavelet analysis, residual mass curve and cumulative average modulus coefficient hydrograph, etc. The results indicated that the annual precipitation series of the 4 stations have slight rising trends. The annual precipitation of Yantai Station mutated obviously in 1950.The annual precipitation series of Linqing, Huangtai Bridge and Qingdao Station have periods of 3, 10, 56 and 80 years.
Ecological Environment Evaluation of Vegetation in Zaozhuang City Based on Landsat-8
Authors: Wen Bo , Zhang Jinhao 
Published: July 2020

Abstract
Based on the remote sensing image of Landsat-8, the ecological factors of vegetation were extracted from remote sensing information, and the ecological environment of vegetation was evaluated and analyzed. The evaluation results show that the vegetation ecological environment in Zaozhuang is relatively good in general, and the evaluation index is in the majority in the range of 4-10, indicating that most of the vegetation ecological environment in Zaozhuang is in excellent state and mostly concentrated in plain and forest areas. Among them, the areas with excellent grades account for 44.07% of the total area, the areas with good grades account for 24.91%, the middle grades for 13.04%, and the poor grades for 17.98%; the western and southern regions are relatively good, the vegetation is basically undamaged, and the ecological structure is reasonable, in line with the concept of sustainable development.