Enhancing adhesive performance of polyvinyl alcohol with sub-nanoscale polyoxotungstate clusters under extreme conditions
Peer-Reviewed Publication
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Researchers from South Chian University of Technology have made a significant advancement in the field of water-based adhesives by developing a novel nanocomposite material that combines polyvinyl alcohol (PVA) with 1-nm Keggin-type polyoxotungstate clusters (POTs) carrying four negative charges. This innovative POT-PVA nanocomposite offers a promising solution for creating eco-friendly, versatile, and durable water-based adhesives suitable for a wide range of applications across various industries.
A study in Forest Ecosystems introduces Critical Height Sampling (CHS) as a model-free method for forest volume estimation. Compared to Horizontal Point Sampling (HPS), CHS provides more consistent volume estimates and is more time-efficient. The study suggests that CHS could complement existing techniques, especially in forests where reliable volume models are not available.
A new study published in Forest Ecosystems explores how different management strategies affect beetle diversity in spruce plantations severely impacted by bark beetle outbreaks.
The add-on acoustic black hole (AABH), as a vibration reduction device with light weight, rich modal density, and high damping characteristics, has been extensively studied in the vibro-acoustic control of structures. However, there has been no research on application of AABH in the control of the typically aeroelastic instability phenomenon of a panel in supersonic flow. Meanwhile, the prediction of aerodynamic response and flutter boundary of panel structures with attached AABH presents a complex challenge, requiring a sophisticated numerical strategy. Therefore, establishment of a numerical method for coupled aeroelastic analysis of a panel in supersonic flow with AABH and the performance of AABH in suppression of the panel's aeroelastic instability is of great significance.The add-on acoustic black hole (AABH), as a vibration reduction device with light weight, rich modal density, and high damping characteristics, has been extensively studied in the vibro-acoustic control of structures. However, there has been no research on application of AABH in the control of the typically aeroelastic instability phenomenon of a panel in supersonic flow. Meanwhile, the prediction of aerodynamic response and flutter boundary of panel structures with attached AABH presents a complex challenge, requiring a sophisticated numerical strategy. Therefore, establishment of a numerical method for coupled aeroelastic analysis of a panel in supersonic flow with AABH and the performance of AABH in suppression of the panel's aeroelastic instability is of great significance.