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Journal of Henan Polytechnic University(Natural Science)

ISTIC

PKU

ISSN：1673-9787

CN：41-1384/N

Frequency：Bimonthly

Website：none

Email：zkxb@hpu.edu.cn

Postcode：454000

Articles4024

Citations33258

Funded2932

Impact Factor：1.54

Articles

2023 No.02

Total 23 articles

Numerical simulation study of top-coal loss mechanism and reasonable cycle step length for extra-thick coal seam top-coal drawingLI Dongyin, WANG Yaochuang, WANG Shen, ZHU Shiting, WANG Zuguang

1-10

Stress analysis of thin composite roof bolt based on continuous beamWEI Sijiang, ZHANG Sheng, ZHAI Liwei, WANG Meng, LIU Zhenshu, CHEN Kehang, CHEN Xu

11-18

Experimental study on water and slag transportation mechanism and high-efficiency extraction in downward boreholesZUO Weiqin, LI Yunqiang, LIU Yanwei, HAN Hongkai, JIA Haojie

19-26

Theoretical calculation and experimental study on the characteristics of longitudinal ultrasonic guided wave propagation in a free boltZHANG Xiaoming, LI Zhuoran, LI Zhi, YU Jiangong

27-33

Study on the morphological distribution features of hydraulic fractures considering underground water disaster controlLI Yakun, WANG Zhirong, HU Kai, CHEN Lingxia

34-41

Study on the distribution law of stress and gas in the coal mass on the side of goafWANG Di, HAN Hongkai, REN Peiliang, LIU Yanwei, ZUO Weiqin, ZHANG Shuai, SHI Can

42-48

Characters and genesis discussion on ferric small-balls in mantle xenoliths from Hebi kimberliteHOU Guangshun, ZHANG Yanlin, JIANG Jiang, YAN Xinjie, QI Yongan, XIANG Shihong, LI Yingjie

49-54

Sentinel-2A image cultivated land information extraction based on object-oriented and random forest modelZHAO Shiyi, YAN Jinfeng, DU Jiaxue

55-61

Spatial distribution characteristics and eutrophication assessment of nitrogen phosphorus of typical tributaries in Danjiangkou Reservoir AreaCHEN Hao, CHEN Yiyan, JIN Yingshu

62-70

Study on mineral contents and crystallization characteristics of calcareous nodules in loess of Shouyang area,Shanxi ProvinceJI Chunxu, LI Yanrong

71-76