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Articles 1921 - 1950 of 3214
Full-Text Articles in Sustainability
Hydraulic Connection Of Aquifers In Barapukuria Coal Mine, Bangladesh, Yu Bo, Wang Hao, Liu Feng, Liu Ji, Wang Qiangmin, Shang Hongbo
Hydraulic Connection Of Aquifers In Barapukuria Coal Mine, Bangladesh, Yu Bo, Wang Hao, Liu Feng, Liu Ji, Wang Qiangmin, Shang Hongbo
Coal Geology & Exploration
Hydraulic connection of aquifers in Barapukuria Coal Mine, Bangladesh
Regularity And Control Of Overburden And Surface Fractures In Shallow-Contiguous Seams, Cao Jian, Huang Qingxiang
Regularity And Control Of Overburden And Surface Fractures In Shallow-Contiguous Seams, Cao Jian, Huang Qingxiang
Coal Geology & Exploration
Regularity and control of overburden and surface fractures in shallow-contiguous seams
Improvement Of Shear Strength And Anti-Disintegration Performance Of Compacted Loess, Zhu Yanbo, Li Hongfei, Ju Zhitong, Lan Hengxing, Liu Zhenqian, Han Yutao
Improvement Of Shear Strength And Anti-Disintegration Performance Of Compacted Loess, Zhu Yanbo, Li Hongfei, Ju Zhitong, Lan Hengxing, Liu Zhenqian, Han Yutao
Coal Geology & Exploration
Improvement of shear strength and anti-disintegration performance of compacted loess
Study On The Strength And Microstructure Of Loess Under Freeze-Thaw Based On Temperature Path, Long Jianhui, Zhang Lingling, Xing Xianli, Guo Xiaojuan
Study On The Strength And Microstructure Of Loess Under Freeze-Thaw Based On Temperature Path, Long Jianhui, Zhang Lingling, Xing Xianli, Guo Xiaojuan
Coal Geology & Exploration
Study on the strength and microstructure of loess under freeze-thaw based on temperature path
Exploration Method Of Underground Geological Anomaly And Its Application Based On Directional Drilling, Fang Jun
Coal Geology & Exploration
Exploration method of underground geological anomaly and its application based on directional drilling
Study On Exploitation And Utilization Mode Of Tourism Resources Of The Underground Space In Abandoned Mines, Han Yun, Liu Qinjie, Wu Benniu, Yang Ke, Dong Zhiyong
Study On Exploitation And Utilization Mode Of Tourism Resources Of The Underground Space In Abandoned Mines, Han Yun, Liu Qinjie, Wu Benniu, Yang Ke, Dong Zhiyong
Coal Geology & Exploration
Study on exploitation and utilization mode of tourism resources of the underground space in abandoned mines
Hazard Source Effect And Location Experiment Of Concealed Water Disaster In Coal Seam Floor, Li Panfeng
Hazard Source Effect And Location Experiment Of Concealed Water Disaster In Coal Seam Floor, Li Panfeng
Coal Geology & Exploration
Hazard source effect and location experiment of concealed water disaster in coal seam floor
Prediction Of The Height Of Water Flowing Fractured Zone Based On Pso-Bp Neural Network, Lou Gaozhong, Tan Yi
Prediction Of The Height Of Water Flowing Fractured Zone Based On Pso-Bp Neural Network, Lou Gaozhong, Tan Yi
Coal Geology & Exploration
Prediction of the height of water flowing fractured zone based on PSO-BP neural network
Table Of Contents, The Editors
Development Characteristics Of Coal Microfracture And Coal Petrology Control Under Cyclic High Voltage Electrical Pulse, Li Hengle, Qin Yong, Zhou Xiaoting, Zhang Yongmin, Chen Yilin
Development Characteristics Of Coal Microfracture And Coal Petrology Control Under Cyclic High Voltage Electrical Pulse, Li Hengle, Qin Yong, Zhou Xiaoting, Zhang Yongmin, Chen Yilin
Coal Geology & Exploration
Development characteristics of coal microfracture and coal petrology control under cyclic high voltage electrical pulse
Temporal And Spatial Evolution Of Surface Thermal Environment In Huainan Mining Area In The Last Decade, Fang Liangcheng, Chen Yongchun, An Shikai, Xu Yanfei, Zhao Yuejiao, Wang Ning, Li Zhihui, Zhao Ping
Temporal And Spatial Evolution Of Surface Thermal Environment In Huainan Mining Area In The Last Decade, Fang Liangcheng, Chen Yongchun, An Shikai, Xu Yanfei, Zhao Yuejiao, Wang Ning, Li Zhihui, Zhao Ping
Coal Geology & Exploration
Temporal and spatial evolution of surface thermal environment in Huainan Mining Area in the last decade
Numerical Study Of Mabian Landslide Kinematics And Impact Intensity, Chen Xing, Zhao Zhou, Wei Jiangbo, Xu Chong
Numerical Study Of Mabian Landslide Kinematics And Impact Intensity, Chen Xing, Zhao Zhou, Wei Jiangbo, Xu Chong
Coal Geology & Exploration
Numerical study of Mabian landslide kinematics and impact intensity
The Economics Of Battery Storage For Residential Solar Customers In Southern California, John B. Broughton, Prashanth U. Nyer, Candace E. Ybarra
The Economics Of Battery Storage For Residential Solar Customers In Southern California, John B. Broughton, Prashanth U. Nyer, Candace E. Ybarra
Business Faculty Articles and Research
Battery storage coupled with solar panels became a consideration after the original net metering program in California (NEM 1.0) ended and gave way to the current net metering program (NEM 2.0). Under NEM 2.0, battery storage gives customers under time-of-use (TOU) rate plans the ability to store the excess electrical energy generated by their panels during sunlight hours (when electricity usage and resale rates are low) and then use that energy in the evening when rates are significantly higher. This reduces the amount of expensive electricity that the customer would have to purchase from the grid. It is widely expected …
Fault Recognition Based On Principal Component Analysis And K-Nearest Neighbor Algorithm, Zou Guangui, Ren Ke, Ji Yin, Ding Jianyu, Zhang Shaomin
Fault Recognition Based On Principal Component Analysis And K-Nearest Neighbor Algorithm, Zou Guangui, Ren Ke, Ji Yin, Ding Jianyu, Zhang Shaomin
Coal Geology & Exploration
Fault recognition based on principal component analysis and k-nearest neighbor algorithm
Application Of In-Seam Wave Technology In Geological Anomaly Detection Of Yangquan Mining Area, Fan Deyuan, Wu Guoqing, Ma Yanlong
Application Of In-Seam Wave Technology In Geological Anomaly Detection Of Yangquan Mining Area, Fan Deyuan, Wu Guoqing, Ma Yanlong
Coal Geology & Exploration
Application of in-seam wave technology in geological anomaly detection of Yangquan Mining Area
Love Wave Full Waveform Inversion Via Pseudo-Hessian Gradient Pre-Conditioning Operator, Guan Jianbo, Li Yu, Yin Caiyun, Yang Zhi, Jin Chaobin, Zhao Meng, Yang Hang
Love Wave Full Waveform Inversion Via Pseudo-Hessian Gradient Pre-Conditioning Operator, Guan Jianbo, Li Yu, Yin Caiyun, Yang Zhi, Jin Chaobin, Zhao Meng, Yang Hang
Coal Geology & Exploration
Love wave full waveform inversion via Pseudo-Hessian gradient pre-conditioning operator
Research On The Model Of Accurate Exploitation And Utilization Of Underground Space Resources In Closed/Abandoned Mines, Liu Qinjie, Wang Jinjiang, Yang Ke, Di Shengjun, Dong Zhiyong
Research On The Model Of Accurate Exploitation And Utilization Of Underground Space Resources In Closed/Abandoned Mines, Liu Qinjie, Wang Jinjiang, Yang Ke, Di Shengjun, Dong Zhiyong
Coal Geology & Exploration
Research on the model of accurate exploitation and utilization of underground space resources in closed/abandoned mines
Spatial-Temporal Distribution Of Outburst Accidents From 2001 To 2020 In China And Suggestions For Prevention And Control, Zhang Chaolin, Wang Enyuan, Wang Yibo, Zhou Xifang
Spatial-Temporal Distribution Of Outburst Accidents From 2001 To 2020 In China And Suggestions For Prevention And Control, Zhang Chaolin, Wang Enyuan, Wang Yibo, Zhou Xifang
Coal Geology & Exploration
Spatial-temporal distribution of outburst accidents from 2001 to 2020 in China and suggestions for prevention and control
Water Inflow Forecasting Method Of Deep Buried Coal Working Face In Northern Ordos Basin, China, Yang Jian, Wang Hao, Liang Xiangyang, Huang Hao
Water Inflow Forecasting Method Of Deep Buried Coal Working Face In Northern Ordos Basin, China, Yang Jian, Wang Hao, Liang Xiangyang, Huang Hao
Coal Geology & Exploration
Water inflow forecasting method of deep buried coal working face in northern Ordos Basin, China
Characteristics Analysis Of The Geothermal Water In Heshan Coalfield Based On Hydrogeochemistry, Zhao Guanhua
Characteristics Analysis Of The Geothermal Water In Heshan Coalfield Based On Hydrogeochemistry, Zhao Guanhua
Coal Geology & Exploration
Characteristics analysis of the geothermal water in Heshan Coalfield based on hydrogeochemistry
Application Of Synthetic Aperture Radar Interferometry To Monitor Surface Deformations Of The Trans-European Transport Network (Ten-T) – A Case Study Of The Motorways Crossing Areas Of Mining Operations In The Upper Silesian Coal Basin, Poland, Adam Smoliński, Mariusz Stawinoga, Tomasz Pindel
Application Of Synthetic Aperture Radar Interferometry To Monitor Surface Deformations Of The Trans-European Transport Network (Ten-T) – A Case Study Of The Motorways Crossing Areas Of Mining Operations In The Upper Silesian Coal Basin, Poland, Adam Smoliński, Mariusz Stawinoga, Tomasz Pindel
Journal of Sustainable Mining
Underground hard coal mining causes surface deformations. When the mining operations are conducted beneath linear objects, such as motorways, there is a risk of deformations of the axis of the road and its horizontal and vertical alignment (additional bends and vertical curvatures, longitudinal inclinations, deformations of crosssections). In the areas subjected to mining operations, mining plants conduct geodetic monitoring. Due to their labour intensity and costs, geodetic measurements are usually made only a few times a year. The article discusses the possibility of applying Interferometric Synthetic Aperture Radar (InSAR) to monitor the subsidence of the vertical alignment of motorways caused …
Table Of Contents, The Editors
Research On Green Coal Mining Strategy In Hedong Coalfield Based On Resource And Geological Environment Characteristic, Liu Hanbin, Cheng Fangqin
Research On Green Coal Mining Strategy In Hedong Coalfield Based On Resource And Geological Environment Characteristic, Liu Hanbin, Cheng Fangqin
Coal Geology & Exploration
Hedong Coalfield is located in the Loess Plateau of western Shanxi province at the western foot of the Lvliang Mountains in the middle reaches of the Yellow River. It is an important coking coal producing area, with severe soil erosion, fragile ecological environment, frequent occurrence of geological disasters and karst spring distribution in China. Through the analysis of resource and geological environment characteristics of Hedong Coalfield, it is found that the scarce coking coal reserves in Liliu mining area in the middle of the coalfield account for 70.8% of the total reserves. But its development intensity is higher than the …
Distribution And Enrichment Of Pollutants From Underground Gasification Of Bituminous Coal In Huating Mining Area, Zhu Lihui, Feng Beizhan, Hu Yongxing, Wang Mingzhong
Distribution And Enrichment Of Pollutants From Underground Gasification Of Bituminous Coal In Huating Mining Area, Zhu Lihui, Feng Beizhan, Hu Yongxing, Wang Mingzhong
Coal Geology & Exploration
In order to study the enrichment and distribution of pollutants from the underground gasification of bituminous coal in Huating Mining Area, and to evaluate the environmental factors of the underground gasification of bituminous coal, with an underground gasification simulation experimental platform system, this paper studies the enrichment of heavy metal pollutants in tar and gasification residues during gasification process by means of different oxygen-rich-water gasification experiments and pyrolysis experiments of coal samples in different sizes. The results show that the pyrolytic tar of bituminous coal tends to increase as its size increases, and the yield increases first and then decreases. …
Occurrence Characteristics And Resource Potential Evaluation Of Tar-Rich Coal For No.5-2Coal Seam In Shenfu Mining Area, Li Huabing, Yao Zheng, Li Ning, Gao Jun, Xie Qing, Wang Qiang
Occurrence Characteristics And Resource Potential Evaluation Of Tar-Rich Coal For No.5-2Coal Seam In Shenfu Mining Area, Li Huabing, Yao Zheng, Li Ning, Gao Jun, Xie Qing, Wang Qiang
Coal Geology & Exploration
With the promotion of clean and efficient utilization of coal and the demand for high-quality development in the middle section of the Yellow River, the transformation and upgrading of coal industry is imperative in Yulin, and the exploitation of tar-rich coal one of the important directions. By organizing and making use of mass drill data, and in combination with the minefield underground spot sampling and regional geology, tar-yield characteristics and tar-rich coal occurrence features of tar-rich coal in No.5-2 coal seam in Shenfu Mining Area are analyzed in detail. Based on analytic hierarchy process, this paper takes resource allocation, …
Organic Geochemistry Of The Jurassic Tar-Rich Coal In Northern Shaanxi Province, Zhang Ning, Xu Yun, Qiao Junwei, Ning Shuzheng
Organic Geochemistry Of The Jurassic Tar-Rich Coal In Northern Shaanxi Province, Zhang Ning, Xu Yun, Qiao Junwei, Ning Shuzheng
Coal Geology & Exploration
The organic geochemical characteristics of tar-rich coal are of great significance to study the paleosedimentary environment and evolution of coal seams. Taking coal samples from 6 main coal seams of Yan’an Formation in Northern Shaanxi Province as the research object, this paper analyses the organic geochemical characteristics of coal seams by coal quality analysis and gas chromatography-mass spectrometry. The results showed that coal samples had a high abundance of chloroform asphalt "A" and a low saturated hydrocarbon/aromatic hydrocarbon ratios, characterized by the unimodal pattern of n-alkanes and dominated by medium chainsaturated hydrocarbons. The ratios of Pr/C17, Ph/C18 …
Occurrence Characteristics Of Carboniferous-Permian Tar-Rich Coal And Its Influencing Factors In Northern Shaanxi, Yao Zheng, Luo Qianzhou, Li Ning, Li Huabing, Wang Qiang, Gao Jun
Occurrence Characteristics Of Carboniferous-Permian Tar-Rich Coal And Its Influencing Factors In Northern Shaanxi, Yao Zheng, Luo Qianzhou, Li Ning, Li Huabing, Wang Qiang, Gao Jun
Coal Geology & Exploration
The rational development of tar-rich coal is of great significance to promote clean and efficient utilization of coal, improve the independent guarantee ability of oil and gas, and achieve carbon emission peak and carbon neutrality. In order to find out the occurrence characteristics of tar-rich coal in the typical mining areas of Carboniferous-Permian coalfield in Northern Shaanxi, based on coal exploration data and sample test results, this paper compares the tar yield of mineable coal seams, summarizes the spatial-temporal distribution rules of tar-rich coal, and discusses the occurrence influential factors. The results show that the average tar yield of mineable …
Gas Drainage Borehole Completion Technology Of Directional Long Hole Drilling With Negative Angle, Ma Zan, Chen Dongdong, Xie Hengxing, Chen Tianzhu, Wang Bin, Jia Bingyi
Gas Drainage Borehole Completion Technology Of Directional Long Hole Drilling With Negative Angle, Ma Zan, Chen Dongdong, Xie Hengxing, Chen Tianzhu, Wang Bin, Jia Bingyi
Coal Geology & Exploration
Pre-drainage of coal seam gas with directional long boreholes is an effective technical means to achieve advanced control of coal mine gas area. Affected by mining deployment, negative-angle boreholes(downward holes) are widely used in production. Medium-hard coal seams have good porosity and usually do not require hole protection. However, the existing conventional methods can not effectively solve the problem of water accumulation in negative angle long boreholes. This paper takes the downward long boreholes in the No. 9 medium-hard coal seam of Longfeng Coal Mine in Guizhou as the research object. Two sets of directional long boreholes are constructed in …
The Concealed Small Faults Detection Based On Gas Drainage Boreholes Along And Cross The Coal Seam, Xue Honglai, Wen Zhe
The Concealed Small Faults Detection Based On Gas Drainage Boreholes Along And Cross The Coal Seam, Xue Honglai, Wen Zhe
Coal Geology & Exploration
The faults have great influence on coal and gas outburst disasters, and accurate detection of faults location is very important to prevent such disasters. At present, large number of gas drainage boreholes were drilled in coal mines, but the geological information contained in these boreholes is not fully paid attention to, thus the method to detect concealed faults by gas-drainage boreholes was proposed. In this paper, by establishing a mathematical model for fault detection based on gas drainage drilling, a three-dimensional coordinate of fault planes and coal seam floors is calculated, and basic parameters such as fault location, drop, attitude …
Quantitative Study Of 3d Numerical Simulation On Optimizing Borehole Layout Spacing Of Gas Drainage, Chen Yuexia, Chu Tingxiang, Chen Peng, Tang Yang
Quantitative Study Of 3d Numerical Simulation On Optimizing Borehole Layout Spacing Of Gas Drainage, Chen Yuexia, Chu Tingxiang, Chen Peng, Tang Yang
Coal Geology & Exploration
In order to optimize the spacing of boreholes and realize efficient drainage, based on the fluid solid coupling model, a three-dimensional geometric model was established to make it closer to the field reality, the gas drainage processes of a coal mine with different borehole spacing were simulated using COMSOL software. The results show that: the effective drainage area was visualized by the three-dimensional diagram of the isobaric surface with gas pressure of 0.74 MPa, and the influence of borehole spacing on the extraction efficiency was discussed. The results show that: the effective extraction radius is about 1.5 m during gas …