Showing 41 - 60 results of 79 for search '"Hegang"', query time: 0.09s Refine Results
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    Prediction of microseismic events in rock burst mines based on MEA-BP neural network by Tianwei Lan, Xutao Guo, Zhijia Zhang, Mingwei Liu

    Published 2023-06-01
    “…To improve the prediction accuracy of microseismic events in rock burst mines, the working face of the Hegang Junde coal mine is selected as the research object, and the research data will consist of the microseismic monitoring data from this working face over the past 4 years, adopts expert system and temporal energy data mining method to fuse and analyze the mine pressure manifestation regularity and microseismic data, and the "noise reduction" data model is established. …”
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    Research and Application of Coal Seam Permeability Improvement Technology by Sectional Directional Hydraulic Fracturing by Feng Wang

    Published 2024-01-01
    “…To address the challenging issue of gas control in the working faces of the Hegang mining area, based on segmented directional hydraulic fracturing technology, ABAQUS simulation software was employed to simulate and analyze the fracturing process of coal-rock masses under the action of segmented hydraulic fracturing. …”
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    Compression Degree of Trigeminal Nerve and Type of Conflicting Vessels Determine Short- and Long-Term Complete Pain Relief in Adult Patients with Primary Trigeminal Neuralgia After... by Zhao ZF, Liu BB, Zhang JN, Shi N, Zhang P, Yang GZ, Cao YF, Tian LH, Qiu CC, Gao Y

    Published 2023-12-01
    “…Zhe-Feng Zhao,1,* Bing-Bing Liu,1,* Jian-Nan Zhang,2,* Ni Shi,3,* Ping Zhang,1,* Gang-Zhi Yang,4 Yu-Fu Cao,4 Long-He Tian,4 Cheng-Cai Qiu,5 Yang Gao6,7 1Department of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, People’s Republic of China; 2Department of Critical Care Medicine, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, People’s Republic of China; 3Department of Critical Care Medicine, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, People’s Republic of China; 4Department of Neurosurgery, People’s Hospital of Hegang City, Hegang, Heilongjiang, People’s Republic of China; 5Department of Neurosurgery, Traditional Chinese Medicine Hospital of Jixi City, Jixi, Heilongjiang, People’s Republic of China; 6Department of Critical Care Medicine, The Sixth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, People’s Republic of China; 7Institute of Critical Care Medicine, The Sino Russian Medical Research Center of Harbin Medical University, Harbin, Heilongjiang, People’s Republic of China*These authors contributed equally to this workCorrespondence: Zhe-Feng Zhao, Department of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, People’s Republic of China, Email know810512@163.com Yang Gao, Department of Critical Care Medicine, The Sixth Affiliated Hospital of Harbin Medical University, Harbin, People’s Republic of China, Email gaoyang0312@126.comObjective: In this study, we aimed to explore the demographic and clinical factors that could determine short- and long-term complete pain relief (CPR) in adult patients with primary trigeminal neuralgia (PTN) after microvascular decompression (MVD) to guide clinical practice.Methods: This single-center retrospective study included adult patients with PTN who underwent MVD as their initial neurosurgical procedure in the Department of Neurosurgery at the Second Affiliated Hospital of Harbin Medical University from January 2017 to December 2019 and completed a 3-year post-surgery follow-up. …”
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    Drought and flood risk assessment for rainfed agriculture based on Copula-Bayesian conditional probabilities by Wentong Yang, Liyuan Zhang, Yu Gao

    Published 2023-02-01
    “…The results show that: (1) Droughts from May to July and floods from January to March had the most significant impact on rainfed crops in the three northeastern provinces. (2) The cities of Huludao, Changchun, Baishan, Baicheng, Yanbian, Hegang, and Jiamusi face a more significant danger of drought in rainfed crops. …”
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    Identification and evaluation of land use vulnerability in a coal mining area under the coupled human-environment by Wang Lei, Jia Yunna, Yao Yunlong, Xu Dawei

    Published 2019-03-01
    “…Based on the coupled human–environment, and taking the Hegang coal mining area (Heilongjiang Province, China) as a research area, combined with RS and GIS technologies, from the perspectives of environmental exposure, sensitivity, and adaptive capacity, the analytic hierarchy process and expert consultation methods were used to establish the evaluation index system and weight. …”
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    Distribution Pattern and Influencing Factors for the Temperature Field of a Topographic Bias Tunnel in Seasonally Frozen Regions by Wenbin Tang, Xiangdong Xu, Tao Zhang, Hong Wang, Jianxing Liao

    Published 2023-05-01
    “…Taking the Huitougou tunnel of Hegang-Dalian expressway as the object, this paper uses on-site monitoring, theoretical analysis, and numerical simulation to study the distribution law and influence factors of temperature field for topographically biased tunnel in seasonally frozen regions. …”
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    Spatiotemporal Distribution of Irrigation Water Use Efficiency from the Perspective of Water Footprints in Heilongjiang Province by Wei Liu, Ziao Ma, Bo Lei

    Published 2022-04-01
    “…The average irrigation water use efficiency in Heilongjiang Province was 0.821 and the irrigation water efficiencies of Harbin, Qiqihar and Jixi were at the forefront of the province. Jiamusi, Hegang, Shuangyashan, Yichun, and Mudanjiang are the five cities with below-provincial-average irrigation water use efficiencies. …”
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