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煤层反射槽波三维正演模拟

地质学报 2024年第7期98卷 2258-2268页

作者：韩建光谷丙洛王硕杨顺中国地质科学院北京100037 中国石油大学(华东) 山东青岛266580 山东泰山资源勘查有限公司山东济南250104

煤炭资源是我国重要的基础能源。我国煤矿开采地质条件较为复杂,随着煤田开采深度及强度不断加大,对煤田微幅构造精细探测的需求日益增加。槽波勘探技术因其探测精度高、抗干扰能力强、波形特征易于识别等优点,是目前获取煤层工作面精... 详细信息

煤炭资源是我国重要的基础能源。我国煤矿开采地质条件较为复杂,随着煤田开采深度及强度不断加大,对煤田微幅构造精细探测的需求日益增加。槽波勘探技术因其探测精度高、抗干扰能力强、波形特征易于识别等优点,是目前获取煤层工作面精细地质构造信息的有效勘探手段。但井下煤层中的波场复杂,反射槽波的波场特征尚待深入研究。本文对煤矿井下三维槽波数值模拟技术进行研究,设计不同类型的含断层三维煤层地质模型,采用三维交错网格高阶有限差分算法模拟反射槽波,分析了反射槽波的波场特征,探讨了不同倾角以及不同断距断层对反射槽波的影响。通过切除干扰波技术,获得有效反射槽波,进而对反射槽波的同相轴进行包络叠加处理,较好地压制了槽波的频散,同相轴明显收敛,能量更为集中,为后续成像处理提供了良好的数据基础。

关键词：煤层反射槽波断层数值模拟三维

基于A-CGAN的深反射地震数据随机噪声压制方法研究

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地质论评 2024年第1期70卷 228-238页

作者：韩建光王卿许媛刘志伟中国地质科学院北京100037 北京信息科技大学北京100101

基于深度学习的地震数据噪声压制方法是当前地震数据去噪处理的重要方向。深度学习方法突破了传统滤波处理的局限,在对常规地震数据的噪声压制中表现出效率高、信噪分离效果好的特点。但针对深部弱有效反射数据,当前的深度学习方法特征... 详细信息

基于深度学习的地震数据噪声压制方法是当前地震数据去噪处理的重要方向。深度学习方法突破了传统滤波处理的局限,在对常规地震数据的噪声压制中表现出效率高、信噪分离效果好的特点。但针对深部弱有效反射数据,当前的深度学习方法特征提取能力有限,难以取得较好的去噪效果。笔者等结合深反射地震数据特点,针对当前深度学习噪声压制方法在特征提取及对数据集依赖上的局限,提出了基于注意力循环生成对抗网络(Attention Cycle-Consistent Generative Adversarial Networks,A-CGAN)的深反射地震数据随机噪声压制方法。借助循环一致生成对抗网络(Cycle-Consistent Generative Adversarial Networks,Cycle-GAN)的域映射思想,降低对数据集的要求。为了构建适用于深反射地震数据的去噪网络,从3个方面对Cycle-GAN进行改进:在Cycle-GAN的生成器(去噪器)中加入残差结构和注意力机制,用于加深网络深度和提高其特征提取能力;在Cycle-GAN的鉴别器中使用块判决,提高鉴别精度和准确度;在损失函数部分加入感知一致性损失函数,提升网络模型恢复纹理细节信息的能力。通过合成地震数据和实际深反射地震数据测试,验证了优化算法的有效性,体现了良好的应用价值。

关键词：深反射地震数据噪声压制深度学习借助循环一致生成对抗网络

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透射槽波技术在煤田勘探中的应用研究

地质论评 2024年第4期70卷 1587-1594页

作者：张鑫韩建光牛云飞徐世业徐安全山东能源集团南美有限公司青岛266400 中国地质科学院北京100037 北京探创资源科技股份有限公司北京100067

槽波地震勘探技术可以有效探查煤层中小断层、陷落柱等地质异常体,在探测精度和距离上明显优于其他煤矿井下勘探方法。透射法作为基本的槽波地震探测方法,具有简单灵活、探测范围大、准确率高等优势。采用透射槽波方法对实际煤矿工作面... 详细信息

槽波地震勘探技术可以有效探查煤层中小断层、陷落柱等地质异常体,在探测精度和距离上明显优于其他煤矿井下勘探方法。透射法作为基本的槽波地震探测方法,具有简单灵活、探测范围大、准确率高等优势。采用透射槽波方法对实际煤矿工作面内断层构造进行探测研究,通过滤波、频散分析、波场及速度分析、能量分析以及透射CT成像等关键技术对实际透射槽波数据进行精细处理,获得准确的透射槽波成像剖面。根据槽波在煤层中受到断层阻断或遇到煤层破碎时其能量将急剧降低的特征,利用透射槽波能量CT剖面,并结合实际揭露情况,解释出12条可靠断层。通过实际煤层工作面透射槽波勘探方法测试,验证了透射槽波方法的有效性以及在煤田断层等构造探测中的实用价值。

关键词：透射槽波频散断层解释能量分析透射CT成像

Protective mechanism of Coprinus comatus polysaccharide on acute alcoholic liver injury in mice,the metabolomics and gut microbiota investigation

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Food Science and Human Wellness 2024年第1期13卷 401-413页

作者： Jinyan Yu jianguang Sun Min Sun Weidong Li Dongmei Qi Yongqing Zhang Chunchao han School of Pharmacy Shandong University of Traditional Chinese MedicineJinan 250355China Hepatology Department of Affiliated Hospital of Shandong University of Traditional Chinese Medicine Jinan 250355China Experimental center Shandong University of Traditional Chinese MedicineJinan 250355China

Coprinus comatus polysaccharide(CCP)has significant hepatoprotective *** explore hepatoprotective mechanism of CCP,the study analyzed preventive effect of CCP on acute alcoholic liver injury in mice by histopathological examination and biochemical ***,hepatoprotective mechanism was also analyzed in conjunction with metabolomics and proliferation of gut *** results showed that CCP significantly decreased alanine aminotransferase(ALT),aspartate aminotransferase(AST)and triglyceride(TG)levels in serum of alcoholic liver disease(ALD)*** examination showed that CCP can significantly improve liver *** results showed that there were significant differences in the level of metabolites in liver tissue of control group,ALD group and CCP group,including taurine,xanthosine,fumaric acid and arachidonic acid,among *** pathways analysis showed that hepatoprotective effect of CCP was related to energy metabolism,biosynthesis of unsaturated fatty acids,amino acids metabolism and lipid ***,CCP inhibited an increase in the number of Clostridium perfringens,Enterobacteriaceae and Enterococcus,and a decrease in the number of Lactobacillus and Bifidobacterium in the gut of ALD *** these findings suggested that CCP treatment reversed the phenotype of ethanol-induced liver injury and the associated metabolites pathways.

关键词： Coprinus comatus Polysaccharide Alcoholic liver disease Metabolomics Gut microbiota

基于AHP-模糊综合评价法的化工园区雷电灾害风险评估

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云南师范大学学报（自然科学版） 2024年第2期44卷 43-48页

作者：张健郭杰钱辉韩建广王霞李翠玉李月英庄士千河北省气象与生态环境重点实验室河北石家庄050021 中国气象局雄安大气边界层重点开放实验室河北雄安071800 饶阳国家气候观象台河北衡水053000 河北衡水高新技术产业开发区应急管理局河北衡水053000

为了评估化工园区的雷电灾害区域风险,选取包含园区等级、经济产值、区域防雷安全管理和防雷检查覆盖率等在内的19个评估指标,采用层次分析法和模糊综合评价法,建立化工园区雷电灾害区域风险评估模型,并对河北衡水高新区化工片区开展雷... 详细信息

为了评估化工园区的雷电灾害区域风险,选取包含园区等级、经济产值、区域防雷安全管理和防雷检查覆盖率等在内的19个评估指标,采用层次分析法和模糊综合评价法,建立化工园区雷电灾害区域风险评估模型,并对河北衡水高新区化工片区开展雷电灾害区域风险评估,以发现化工片区的雷灾隐患点和防雷措施薄弱环节,确定科学的防雷减灾策略,有效保障园区内生产安全和人员生命财产安全.

关键词：化工园区雷电灾害区域风险评估层次分析法模糊综合评价法

Design and Data Analysis of a New Type of Antifreezing Cup-Type Wind Velocity Sensor

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World Journal of Engineering and Technology 2023年第4期11卷 672-681页

作者： Jiajia Zhang jianguang han Jianan Yin Zheng Liu Ting Ma Hebei Provincial Meteorological Technology Equipment Center Shijiazhuang China Hengshui City Meteorological Bureau Hengshui China Hebei Provincial Meteorological Disaster Prevention and Environmental Meteorology Center Shijiazhuang China

In most areas of China, affected by the environment of low temperature and high humidity, the wind speed sensor and wind direction sensor are frozen and cannot output data in autumn, winter or the alternation of winter and spring. In order to solve the freezing situation of the wind sensor, this paper designs a new type of antifreeze wind speed sensor. After meteorology performance testing and field observation tests, the correlation coefficient of the observation data is demonstrated, and the data curve is fitted. The result shows the sensor is stable, and has a good antifreeze effect, the data output is reliable.

关键词： Automatic Weather Station Wind Speed Sensor Wind Direction Sensor Freeze Cold-Resistant Technology

Gaussian beam prestack depth migration in heterogeneous transversely isotropic media

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Gaussian beam prestack depth migration in heterogeneous tran...

Reflection on China's Disaster Prevention and Mitigation Construction after Rainstorm and Snowstorm

中国科学院地质与地球物理研究所2015年度（第15届）...

作者： jianguang han Yun Wang Institute of Geology and Geophysics Chinese Academy of Sciences University of Chinese Academy of Sciences Institute of Geochemistry Chinese Academy of Sciences

The transversely isotropic(TI)media approximation is commonly applied to assist in the processing of seismic data acquired in sedimentary *** on anisotropic kinematic and dynamic ray tracing systems,a P-wave Gaussian beam prestack depth migration(GB-PSDM)method for TI media is introduced in this *** imaging principle of anisotropic GB-PSDM and the corresponding migration parameters are presented on the basis of the GB-PSDM method in isotropic *** of synthetic and field seismic data show that the method is an accurate and efficient anisotropic prestack depth migration method in TI media.

关键词： anisotropy Gaussian beam prestack depth migration ray tracing transversely isotropy media

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Meteorological and Environmental Research 2023年第2期14卷 45-49页

作者： jianguang han Haijiang ZHAO Raoyang National Climatological Observatory Raoyang 053900China Hengshui Meteorological Bureau Hengshui 053000China Zhangjiakou Meteorological Bureau Zhangjiakou 075000China

On July 10,2004,Beijing was hit by the rainstorm that has not been seen for many years,which caused water accumulation in many places of the urban area,power supply interruption in many places,and traffic paralysis for nearly 5 h. On July 12,2004,the rainstorm in Shanghai lasted less than 1 h,but it caused 7 deaths,more than 20 injuries,extensive power outages and traffic paralysis. At the end of 2005,the continuous snowfall in Weihai City of Shandong Province for half a month caused direct economic losses of over 200 million yuan,and the continuous heavy snowfall had a serious impact on people’s lives. From July 17 to 23,2021,Henan Province suffered a rare extremely heavy rainstorm in history,with a direct economic loss of 120.6 billion yuan. Faced with such urban meteorological disasters and other types of urban disasters,combined with the current situation of disaster prevention and reduction in China,what will managers,decision-makers,and experts and scholars think about from them.

关键词： Rainstorm Snowstorm Urban disasters Disaster prevention and mitigation

Multi-component Gaussian beam prestack depth migration

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Multi-component Gaussian beam prestack depth migration