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821
A study on coupling and coordination of grain production and agricultural ecological protection in the Yangtze river economic belt
Published 2025-02-01“…In terms of regions, Guizhou has the highest comprehensive level of grain production, and Anhui has the lowest; the region with the highest comprehensive level of agricultural ecological protection is Chongqing, and the lowest is Jiangxi; only Anhui and Hubei have entered high coordination stage, and only Shanghai, Zhejiang, Chongqing, and Yunnan belong to the type of synchronous development. …”
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822
Research on Reservoir Emergency Dispatching under Sudden Water Pollution Incident——A Case Study of Hongshui River in the Upper Reaches of the Pearl River
Published 2020-01-01“…The Pearl River is an important water source for Yunnan, Guizhou, Guangxi, Guangdong ,etc. It is extremely important to study the movement and diffusion process of water pollutants andthe countermeasures for sudden water pollution incident in this basin for water supply security.Assuming that an emergency event of substandard sewage discharging occurs approximately 12 kmdownstream of Longtan Reservoir (in Tian'e County, Guangxi) during the dry season, this paperformulates a reservoir emergency dispatching plan set, and simulates the movement process ofpollutants by the water quality model in the EIAW11 software package, and the concentration changeprocess of pollutants with different concentrations (taking BOD as an example)under differentdownstream sections and different river flows. …”
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823
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824
Attribution Analysis of Runoff Change in the Upper Reaches of the Liuchong River Basin Based on Coupled Water-energy Balance Equation
Published 2021-01-01“…Taking the upper reaches of the Liuchong River in Guizhou Province as the study area,this paper first analyzes the trend and abrupt change of the annual runoff at Qixingguan Station in the Liuchong River by the Mann-Kendall test and Pettitt test to find the abrupt change points,then,discusses the reasons of runoff change before and after the abrupt change points by the coupled water-energy balance equation,finally,calculates the contribution rates of precipitation,potential evapotranspiration and underlying surface to runoff change through the sensitivity analysis of their elastic coefficients.The results show that:The depth of runoff in the upper reaches of the Liuchong River shows a significant downward trend from 1971 to 2009,and a significant abrupt change occurred in 1986.By comparing the sensitivity of precipitation,potential evapotranspiration,and underlying surface to runoff change,it is found that the elastic coefficient of precipitation is the highest,followed by the underlying surface index,and finally the potential evapotranspiration,indicating that runoff is the most sensitive to the change of precipitation.In addition,based on the results of the contribution rate of the three factors to the reduction of runoff,it is found that the contribution rate of decreasing precipitation to runoff reduction is as high as 113.3%,followed by the change of underlying surface,with a contribution rate of 14.4% and finally the increasing potential evapotranspiration,with a contribution rate of -27.7%.…”
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825
Calculation Method for the Critical Thickness of a Karst Cave Roof at the Bottom of a Socketed Pile
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826
Effect of Pretreatment with Sulfuric Acid on Catalytic Hydrocracking of Fe/AC Catalysts
Published 2017-01-01“…Hydroconversion of the extraction residue from Guizhou bituminous coal was also studied using Fe2S3/AC-T as the catalyst. …”
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827
Study on Prediction of Outburst Risk of Excavation Face by Initial Gas Emission
Published 2022-01-01“…Using a ZTL20/1000-Z mine flameproof prediction device, taking excavation face 9301 in the Anshun Coal Mine in Guizhou Province, China, as the research object, and taking the detailed regulations for prevention and control of coal and gas outburst promulgated by the China Coal Mine Safety Supervision Bureau in 2019 as the prediction standard for coal and gas outbursts, an experiment on the outburst risk prediction for the excavation face was conducted. …”
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828
Comparative study on blasting simulation vibration reduction and field vibration reduction experiment of adjacent oil pipeline
Published 2025-01-01“…IntroductionYongxing Tunnel No.1’s complex geology near a buried oil pipeline on the Guizhou-Nanning high-speed route poses blasting risks. …”
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829
A Method for Determining the Mechanical Parameters of Solution Pore and Crevice Limestone Based on Porosity
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830
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831
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832
Comparative Genomic Analysis of Rhodococcus equi: An Insight into Genomic Diversity and Genome Evolution
Published 2019-01-01Get full text
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833
Optimization of Flash Extraction of Akebia trifoliata Seed Oil by the Box-Behnken Response Surface Methodology and Comparison of Oil Yields from Different Origins
Published 2022-01-01“…For comparison, it is found that the oil yield of Akebia trifoliata seed produced in Qujing of Yunnan is relatively the highest, followed by Tongren of Guizhou and Zhangjiajie of Hunan; the oil yield of Akebia trifoliata seed produced in Shimian of Sichuan is the lowest. …”
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834
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Short-Term Traffic Flow Prediction of Expressway: A Hybrid Method Based on Singular Spectrum Analysis Decomposition
Published 2021-01-01“…Experiments on the traffic flows of Guizhou expressway in January 2016 show that the proposed SSA-LSTM-SVR model has lower predictive errors and a higher accuracy and fitting goodness than other baselines. …”
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836
Online placement algorithm of service function chain based on knowledge graph
Published 2022-08-01Get full text
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837
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838
Automatic Recognition of Financial Instruments Based on Anisotropic Partial Differential Equations
Published 2021-01-01Get full text
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839
A New Evaluation Method for the Fracability of a Shale Reservoir Based on the Structural Properties
Published 2019-01-01“…Finally, the reservoir fracability index was modeled using the Xike 2 well in the north of Guizhou Province as a case study. Subsequently, a fracability logging evaluation method based on the fracability index model was determined, which will potentially provide a new technical tool for future fracturing optimization processes.…”
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840