Shaanxi Polytechnic University

Development and preliminary validation of a machine learning model for forward head posture in university students

This cross-sectional study aimed to develop and preliminarily validate a machine learning model for preliminary forward head posture (FHP) screening and deploy the final model as an online tool. Among 825 university students, 625 comprised the development dataset (training set, n...

Prediction of water-conducting fracture zone height under repeated mining in close-distance coal seam groups using a BP neural network

Accurate prediction of the height of the water-conducting fracture zone (WCFZ) is essential for assessing hydraulic connection between mining-induced fractures and overlying aquifers in close-distance coal seam groups. Repeated extraction differs from isolated single-seam mining...

A MPRF Residual Fusion Model for Short-Term Electric Load Forecasting

Short-term electric load forecasting is crucial for the daily scheduling and market trading of power systems, ensuring their stable operation. However, the randomness and uncertainty of load series make accurate forecasting exceptionally challenging. To enhance the forecasting ac...

Chiral Alanine Functionalized Perylene Diimides: Supramolecular Self-Assembly and Optical Properties

Water-soluble alanine-functionalized perylene diimide derivatives (PDI-Ala) were synthesized by introducing alanine units at the imide positions of the PDI framework. Their photoluminescence properties and supramolecular aggregation behavior were investigated in solvents of varyi...

Calcium Chloride Activation of Acid-Washed Sewage Sludge Ash: Hydration Mechanism and Performance as a Supplementary Cementitious Material

Due to the fact that municipal sludge incineration generates a large amount of toxic sewage sludge ash (SSA), cement solidification is becoming an efficient harmless treatment method. However, the large amount of phosphorus in sludge ash can delay the setting time of cement paste...