Showing 481 - 500 results of 582 for search '"North China"', query time: 0.06s Refine Results
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    Groundwater-Mixing Mechanism in a Multiaquifer System Based on Isotopic Tracing Theory: A Case Study in a Coal Mine District, China by Pinghua Huang, Xinyi Wang

    Published 2018-01-01
    “…To study the mixing mechanism of a multiaquifer groundwater system, groundwater samples were collected from different strata in a typical North China-type coalfield (Chaochuan Coal Mine) and were then tested using environmental isotopes (18O, 2H, 3H, 13C, and 14C) and hydrochemical ions (Ca2+, Mg2+, Na+, K+, HCO3−, SO42−, and Cl−) as tracer agents. …”
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    Cycles of History: China, North Korea and the End of the Korean War by Sheila Miyoshi Jager

    Published 2011-01-01
    “…In 1895, the Chinese scholar Kang Youwei was on his way to Beijing on a Chinese steamer when his ship was abruptly boarded and searched by a party of Japanese soldiers on the North China Sea. "I was enraged when the Japanese came and searched our ship," he later wrote. …”
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  7. 487

    Effect of Irrigation to Winter Wheat on the Radiation Use Efficiency and Yield of Summer Maize in a Double Cropping System by Li Quanqi, Chen Yuhai, Zhou Xunbo, Yu Songlie, Guo Changcheng

    Published 2012-01-01
    “…In north China, double cropping of winter wheat and summer maize is a widely adopted agricultural practice, and irrigation is required to obtain a high yield from winter wheat, which results in rapid aquifer depletion. …”
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    Isotopic Age of the Xiong’er Group Volcanic Rocks and Its Geological Significance in Western Henan, China by Wenchao Dong, Xucheng Pang, Weixun Qu, Guangshun Hou

    Published 2022-01-01
    “…As a set of low-grade metamorphic and low-deformation volcanic rocks formed in the transition period during the tectonic evolution of the North China Craton in the Precambrian, the tectonic and magmatic evolution information of this period are well recorded. …”
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  11. 491

    Recent Decreasing Trends in Surface PM2.5 over East Asia in the Winter-Spring Season: Different Responses to Emissions and Meteorology between Upwind and Downwind Regions by Young-Hee Ryu, Seung-Ki Min, Alma Hodzic

    Published 2021-02-01
    “…This system accurately reproduced the monthly means, daily variations, and vertical profiles of PM2.5 during winter and spring over the Seoul Metropolitan Area (SMA) in South Korea and the North China Plain (NCP) and Yangtze River Delta (YRD) in China. …”
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    Quantitative Evaluation for the Threat Degree of a Thermal Reservoir to Deep Coal Mining by Yun Chen, Xinyi Wang, Yanqi Zhao, Haolin Shi, Xiaoman Liu, Zhigang Niu

    Published 2020-01-01
    “…Taking the Suiqi coalfield located in North China as the object, where the coal seam burial depth is more than 1100 m, the water abundance of the roof pore thermal storage aquifer is better than average, the ground temperature is abnormally high, and hydrogeological data are relatively lacking, this paper selects and determines eight index factors that influence the mining of the coalfield. …”
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    Evaluation of the Water Yield of Coal Roof Aquifers Based on the FDAHP-Entropy Method: A Case Study in the Donghuantuo Coal Mine, China by Yaowen Zhang, Lili Zhang, Haijun Li, Baoming Chi

    Published 2021-01-01
    “…To evaluate the water yield of the sandstone aquifer in the roof of the Carboniferous-Permian Damiaozhuang Formation no. 8 coal seam in the Donghuantuo Mine, North China, seven main controlling factors affecting the water yield of sandstone aquifers are determined, including the permeability coefficient, consumption of drilling fluid, core recovery, aquifer thickness, brittle-plastic rock thickness ratio, fault scale index, and fault point density. …”
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    Modeling of winter wheat yield prediction based on solar-induced chlorophyll fluorescence by machine learning methods by Minxue Zheng, Han Hu, Yue Niu, Qiu Shen, Feng Jia, Xiaolei Geng

    Published 2025-12-01
    “…Using multiple statistical machine learning (ML) methods, this study investigated the predictive abilities of SIF and NIRv by combining climate data to predict winter wheat yields in five provinces in the North China Plain (NCP). Results showed that: (a) SIF outperformed NIRv in predicting winter wheat yields. …”
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    A shallow-water oxygen minimum zone in an oligotrophic Tonian basin by Yunpeng Sun, Wei Wang, Xianguo Lang, Chengguo Guan, Qing Ouyang, Ke Pang, Guangjin Li, Yongliang Hu, Hongyi Shi, Xianye Zhao, Chuanming Zhou

    Published 2025-01-01
    “…Here, we present sedimentological and geochemical analyses of the early Tonian Huainan, Feishui, and Huaibei groups in the Xuhuai basin of the North China craton. Multiple redox proxies show consistent, water depth-dependent variations across the Xuhuai basin. …”
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