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mdpi.com
mdpi.com > 2076-16/18/3417 > 9004

Applied Sciences, Vol. 16, Pages 9004: Construction of a Long-Lived Hydrothermal Architecture for W, Au-Sb Deposits During Variscan Belt Thermal Collapse, French Massif Central (330–295 Ma)

2+ day, 17+ hour ago   (412+ words) Since pioneering fluid-flow models for the Iberian and French Variscan belt, advances in geochronology, thermochronology, and geodynamic modeling have improved our understanding of late Variscan crustal evolution. New datasets suggest tungsten and gold mineralization do not represent distinct metallogenic events,…...

mdpi.com
mdpi.com > 2076-16/17/3417 > 8652

Applied Sciences, Vol. 16, Pages 8652: Basin-Wide Monitoring and PIM Parameter Inversion of Mining Subsidence Using UAV-LiDAR

1+ week, 6+ day ago   (473+ words) Accurate, comprehensive, and spatially continuous monitoring of mining-induced surface subsidence is essential for geohazard prevention, ecological restoration, and safe mining. Conventional approaches, however, are limited by the sparse spatial distribution of GNSS observations, the difficulty of InSAR in resolving large…...

mdpi.com
mdpi.com > 2076-16/17/3417 > 8842

Applied Sciences, Vol. 16, Pages 8842: Numerical Imaging Characterization of Three-Dimensional Velocity Fields for Creep Damage Evolution in Surrounding Rock of Deep Roadways

1+ week, 23+ hour ago   (450+ words) To characterize the three-dimensional evolution of creep damage in deep roadway surrounding rock, this study establishes a COMSOL-based (Multiphysics 6.3) integrated analysis framework coupling creep damage, seismic velocity response and three-dimensional imaging. The framework adopts the Norton–Bailey creep constitutive model,…...

mdpi.com
mdpi.com > 2076-16/17/3417 > 8618

Applied Sciences, Vol. 16, Pages 8618: Frequency-Selective Station Diagnostics for Diffuse Volcanic Degassing: Integrating Soil-Gas Flux with Paired-Depth Pressure and Temperature Measurements

2+ week, 21+ hour ago   (409+ words) Diffuse volcanic-degassing stations record environmental and instrument-driven variability across minutes to seasons. A flux record alone does not identify which forcing components reach the monitored layer or whether the acquisition chain alters them. We present a local three-channel diagnostic integrating…...

mdpi.com
mdpi.com > 2076-16/17/3417 > 8845

Applied Sciences, Vol. 16, Pages 8845: Characterization of Geothermal Reservoir Structures Based on a Deep Generative Neural Network with Local Edge Pattern Learning

1+ week, 23+ hour ago   (420+ words) Accurate three-dimensional (3D) characterization of geothermal reservoirs is crucial for resource assessment and development, yet it remains a significant challenge due to sparse direct observations and the complex, heterogeneous nature of subsurface geology. While deep learning has emerged as a powerful…...

mdpi.com
mdpi.com > 2076-16/17/3417 > 8507

Applied Sciences, Vol. 16, Pages 8507: Mechanical Degradation and Acoustic Emission Characteristics of Sandstone Containing Intersecting Fissures Under Uniaxial Compression

2+ week, 3+ day ago   (425+ words) Intersecting fissures strongly affect stress transfer and crack coalescence in rock, but their coupled effects on mechanical degradation and acoustic emission signatures remain incompletely understood. We conducted uniaxial compression tests with synchronous acoustic emission monitoring on prismatic sandstone specimens containing…...

mdpi.com
mdpi.com > 2076-16/17/3417 > 8360

Applied Sciences, Vol. 16, Pages 8360: Optimizing Machine Learning Models for Predicting Rock Cohesion and Angle of Internal Friction: A Comparative Study of Lithological Analysis, Robustness Assessment, and SHAP Explanations

3+ week, 1+ day ago   (501+ words) Rock cohesion (c) and angle of internal friction (φ) are core parameters for rock mass stability analysis and engineering design; however, traditional triaxial tests are costly and time-consuming, limiting their availability in preliminary engineering assessments. To address this limitation, this study…...

mdpi.com
mdpi.com > 2076-16/17/3417 > 8408

Applied Sciences, Vol. 16, Pages 8408: Model Test on Thermo-Mechanical Behavior of Pure Friction Piles Under Cyclic Temperature

2+ week, 6+ day ago   (477+ words) Frictional energy piles are a more desirable form of shallow geothermal energy utilization. A pure friction pile condition cannot be achieved in field tests. In this study, foam was placed beneath the model pile tip to weaken the end-bearing resistance....

mdpi.com
mdpi.com > 2076-16/17/3417 > 8709

Applied Sciences, Vol. 16, Pages 8709: Study on Acoustic Emission Response and Failure Characteristics of Rock–Proppant–Rock Composite Constructions Under Uniaxial Compression

1+ week, 4+ day ago   (402+ words) To reveal the bearing and instability mechanisms after filling proppants in the blasting pressure-relief fracture, four types of proppant-containing sandstone composite construction with interface inclinations of 0°, 4°, 8°, and 12° were prepared. A uniaxial compression test was conducted by combining Acoustic Emission (AE)…...

mdpi.com
mdpi.com > 2076-16/17/3417 > 8394

Applied Sciences, Vol. 16, Pages 8394: Assessment of Nonlinear Site Response Using eHVSRs During the 2023 Kahramanmaraş Earthquake Sequence

2+ week, 6+ day ago   (533+ words) This study presents the first evaluation of the degree of nonlinearity in site response at strong-motion stations in Türkiye during the 6 February 2023 Kahramanmaraş earthquake sequence (Mw 7.8 and Mw 7.5) using earthquake horizontal-to-vertical spectral ratios (eHVSRs). The analysis uses 2050 weak-motion and 175 strong-motion…...

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