China Three Gorges University

Rural-urban divergence in healthy aging: differential associations of social support versus individual attributes in China

Against the backdrop of population aging, promoting healthy aging is a core strategy for aging governance in China. Driven by unbalanced rural–urban development, the associations between relevant factors and healthy aging among older adults may exhibit distinct rural–urban hetero...

An SPCL-Stacking ensemble learning framework for landslide susceptibility assessment

Abstract Background Machine learning has been increasingly applied to data driven landslide susceptibility assessment. However, false negative label noise introduced during negative sample selection and the limited predictive capability of single models remain unresolved issues....

Experimental study on the reinforcement performance of unloading-damaged mudstone by microbial grouting

<title>Abstract</title> To address the structural deterioration and water-induced swelling of mudstone caused by unloading damage during foundation excavation, grouting reinforcement tests using MICP and volcanic ash-assisted MICP were conducted. Mudstone specimens with unloading...

Pollution assessment and source analysis of heavy metals and nutrients in sediments of Liujiaxia reservoir, upper Yellow River, China

Abstract To investigate the pollution characteristics, ecological risks, and sources of nutrients and heavy metals in the sediments of the Liujiaxia Reservoir, 21 surface sediment samples were collected in August 2025. Concentrations of total nitrogen (TN), total phosphorus (TP),...

A Method for Determining Load Paths Based on Fermat’s Principle

Abstract Load path analysis serves as the foundation for establishing mechanical models of D-regions in structural components. This paper proposes a method based on Fermat’s principle for the automatic generation of load paths within structural members. First, based on the govern...

Three-dimensional spatio-temporal propagation dynamics from soil moisture to vegetation droughts across different eco-geographical regions of China

Study region China. Study focus This study investigated the propagation from soil moisture drought (SD) to vegetation drought (VD) across China during 1981–2020 using a three-dimensional (3-D) spatio-temporal clustering framework. SD and VD events were identified based on the Sta...

Trends and Lagged Cumulative Associations Between Vegetation NDVI and Extreme Climate Indices in the Yangtze River Basin: A 41-Year Observational Analysis

Extreme climate events can disturb vegetation dynamics and alter ecosystem stability. This study investigated the evolution of extreme climatic conditions and vegetation greenness across the Yangtze River Basin during 1982–2022 by integrating CN05.1 daily meteorological records w...

Flocculation and Dewatering Mechanisms of Pyrite Flotation Tailings: Synergistic Roles of Polyferric Chloride, Polydiallyldimethylammonium Chloride, and Skeleton Builders on Microstructure Evolution

This study investigates the conditioning and deep dewatering of pyrite tailings slurry using a composite system comprising polyferric chloride (PFC), polydiallyldimethylammonium chloride (PDMDAAC), and fly ash as a skeleton builder. The synergistic application significantly enhan...