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  1. No Access

    Article

    Groundwater Resource Assessment by Applying Long-Term Trend Analysis of Spring Discharge, Water Level, and Hydroclimatic Parameters

    Groundwater accounting is becoming increasingly important for sustainable societal development. To gain insights into the long-term spatiotemporal changes from 1992 to 2015 regarding groundwater resources in K...

    Zhi-Qiang Yu, Takahiro Hosono, Hiroki Amano, Ronny Berndtsson… in Water Resources Management (2024)

  2. No Access

    Article

    Groundwater nitrogen response to regional land-use management in South Japan

    For a better understanding of the effects of regional groundwater management for different land-use types on nitrogen content in groundwater, we investigated the Miyakonojo River Basin in south of Japan where ...

    Zhi-Qiang Yu, Kei Nakagawa, Ronny Berndtsson, Toru Hiraoka… in Environmental Earth Sciences (2021)

  3. Article

    Open Access

    Experimental study on jet pulse assembly design and numerical simulation

    Jet pulse assembly is one of the main components of jet hydraulic oscillator. The pressure wave characteristics produced by jet pulse assembly have an important influence on the performance of the tool. In thi...

    Liang Xue, Hu Han, Dian Wang, **an-Bo Liu, He Liu, Zhi-Qiang Yu in Petroleum Science (2020)

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  4. No Access

    Article

    Analysis of earthquake-induced groundwater level change using self-organizing maps

    For a better understanding of possible physical links between geophysical observables and earthquake characteristics, it is important to analyze statistical spatiotemporal patterns in nature related to such ev...

    Kei Nakagawa, Zhi-Qiang Yu, Ronny Berndtsson, Makoto Kagabu in Environmental Earth Sciences (2019)

  5. No Access

    Article

    Hydrogeochemical evolution of groundwater in a Quaternary sediment and Cretaceous sandstone unconfined aquifer in Northwestern China

    A better understanding of the hydrogeochemical evolution of groundwater in vulnerable aquifers is important for the protection of water resources. To assess groundwater chemistry, groundwater sampling was perf...

    Zhi-Qiang Yu, Hiroki Amano, Kei Nakagawa, Ronny Berndtsson in Environmental Earth Sciences (2018)

  6. No Access

    Article

    Magma mingling and chemical diffusion in the Taojiang granitoids in the Hunan Province, China: evidences from petrography, geochronology and geochemistry

    Petrographic study and zircon LA-ICP-MS U-Pb dating reveal that the Taojiang pluton is mainly composed of Late Indosinian biotite granodiorites (216 ± 2 Ma, 217 ± 1 Ma and 217 ± 1 Ma) with contemporaneous micr...

    Kai-**ng Wang, Pei-Rong Chen, Wei-Feng Chen, Hong-Fei Ling… in Mineralogy and Petrology (2012)