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View article: Experimental Study on the Effects of Loading Rates on the Fracture Mechanical Characteristics of Coal Influenced by Long-Term Immersion in Mine Water
Experimental Study on the Effects of Loading Rates on the Fracture Mechanical Characteristics of Coal Influenced by Long-Term Immersion in Mine Water Open
Underground pumped storage hydropower stations (UPSH) are of great significance for energy structure adjustment, and coal mine underground reservoirs are an integral part of UPSH. This study investigates the fracture mechanics behavior of …
View article: Liquid nitrogen-assisted damage and fracturing of rocks and its implications for rock excavation
Liquid nitrogen-assisted damage and fracturing of rocks and its implications for rock excavation Open
Cutting hard rocks has a problem of high tool wear which can be solved by the liquid nitrogen (LN2) assisted excavation. In this study, the strength-reducing effects of LN2 treatment were studied experimentally. One free-surface on the top…
View article: Probabilistic Prediction of Spudcan Bearing Capacity in Stiff-over-Soft Clay Based on Bayes’ Theorem
Probabilistic Prediction of Spudcan Bearing Capacity in Stiff-over-Soft Clay Based on Bayes’ Theorem Open
During offshore operations of jack-up platforms, the spudcan may experience sudden punch-through failure when penetrating from an overlying stiff clay layer into the underlying soft clay, posing significant risks to platform safety. Conven…
View article: ASCD: Attention-Steerable Contrastive Decoding for Reducing Hallucination in MLLM
ASCD: Attention-Steerable Contrastive Decoding for Reducing Hallucination in MLLM Open
Multimodal large language models (MLLMs) frequently hallucinate by over-committing to spurious visual cues. Prior remedies-Visual and Instruction Contrastive Decoding (VCD, ICD)-mitigate this issue, yet the mechanism remains opaque. We fir…
View article: Experimental study of microwave thawing on the LN2 frozen coals for enhancing coalbed methane extraction
Experimental study of microwave thawing on the LN2 frozen coals for enhancing coalbed methane extraction Open
Liquid nitrogen (LN 2 ) fracturing has been studied widely in coal-bed methane (CBM) stimulation. Nevertheless, the thawing effect on the frozen coal has been rarely considered. The thawing behaviors of the frozen coal by microwave were re…
View article: CoT-Kinetics: A Theoretical Modeling Assessing LRM Reasoning Process
CoT-Kinetics: A Theoretical Modeling Assessing LRM Reasoning Process Open
Recent Large Reasoning Models significantly improve the reasoning ability of Large Language Models by learning to reason, exhibiting the promising performance in solving complex tasks. LRMs solve tasks that require complex reasoning by exp…
View article: Caption Anything in Video: Fine-grained Object-centric Captioning via Spatiotemporal Multimodal Prompting
Caption Anything in Video: Fine-grained Object-centric Captioning via Spatiotemporal Multimodal Prompting Open
We present CAT-V (Caption AnyThing in Video), a training-free framework for fine-grained object-centric video captioning that enables detailed descriptions of user-selected objects through time. CAT-V integrates three key components: a Seg…
View article: Microwave-assisted heating on sandstone subjected to liquid nitrogen freeze-thaw: Pore structures and temperature characteristics
Microwave-assisted heating on sandstone subjected to liquid nitrogen freeze-thaw: Pore structures and temperature characteristics Open
Liquid nitrogen (LN2) and microwave are the alternative methods for reservoir fracturing, which are rarely combined. To investigate the combined effects, sandstone is frozen with LN2 before microwave heating (MI), and nuclear magnetic reso…
View article: Study on the pore structure and permeability evolution of tight sandstone under liquid nitrogen freezing‐thawing cycles based on NMR technology
Study on the pore structure and permeability evolution of tight sandstone under liquid nitrogen freezing‐thawing cycles based on NMR technology Open
To further raise the gas extraction efficiency of the tight sandstone, the liquid nitrogen (LN2) freezing-thawing cycles method can be employed to improve the permeability of the low-permeability reservoirs. Permeability is generally regar…
View article: FedBiP: Heterogeneous One-Shot Federated Learning with Personalized Latent Diffusion Models
FedBiP: Heterogeneous One-Shot Federated Learning with Personalized Latent Diffusion Models Open
One-Shot Federated Learning (OSFL), a special decentralized machine learning paradigm, has recently gained significant attention. OSFL requires only a single round of client data or model upload, which reduces communication costs and mitig…
View article: Study on improvement of impermeability of strongly weathered phyllite by microorganisms
Study on improvement of impermeability of strongly weathered phyllite by microorganisms Open
The technology of strengthening weakness rock based on microbial mineralization has been widely concerned by researchers and engineers in recent years. The uniaxial compressive strength, permeability and microscopic physical properties of …
View article: Effect of magnesium hydroxide on the mechanical properties and pore structure of cement mortar after high temperature exposure
Effect of magnesium hydroxide on the mechanical properties and pore structure of cement mortar after high temperature exposure Open
Magnesium hydroxide (Mg(OH)2) is commonly used as flame retardant chemical additive in polymers. In this study, the effect of Mg(OH)2 on pore structure and mechanical properties of cement mortar is quantitatively investigated through compr…
View article: Experimental and numerical study on dynamic mechanical behaviors of shale under true triaxial compression at high strain rate
Experimental and numerical study on dynamic mechanical behaviors of shale under true triaxial compression at high strain rate Open
High-energy gas fracturing of shale is a novel, high efficacy and eco-friendly mining technique, which is a typical dynamic perturbing behavior. To effectively extract shale gas, it is important to understand the dynamic mechanical propert…
View article: A modified 3D mean strain energy density criterion for predicting shale mixed-mode I/III fracture toughness
A modified 3D mean strain energy density criterion for predicting shale mixed-mode I/III fracture toughness Open
The fracture toughness of rocks is a critical fracturing parameter in geo-energy exploitation playing a significant role in fracture mechanics and hydraulic fracturing. The edge-notched disk bending (ENDB) specimens are employed to measure…
View article: Study on damage-stress loss coupling model of rock and prestressed anchor cable in dry-wet environment
Study on damage-stress loss coupling model of rock and prestressed anchor cable in dry-wet environment Open
The loss of anchoring force is one of the problems to be solved urgently. The anchorage loss is a key factor causing the failure of anchoring engineering, so it is crucial to study the time-dependent variation of anchoring force. Alternati…
View article: MISAR: A Multimodal Instructional System with Augmented Reality
MISAR: A Multimodal Instructional System with Augmented Reality Open
Augmented reality (AR) requires the seamless integration of visual, auditory, and linguistic channels for optimized human-computer interaction. While auditory and visual inputs facilitate real-time and contextual user guidance, the potenti…
View article: Assessment on anisotropy degree and fracture modes for weakly anisotropic sandstone using the acoustic emission technique
Assessment on anisotropy degree and fracture modes for weakly anisotropic sandstone using the acoustic emission technique Open
Comprehensive understanding of anisotropy characteristics and fracture modes for weakly anisotropic rocks is required for engineering safety and energy exploitation. To investigate the fracture mechanisms, the uniaxial compression testing …
View article: Simulation of brittle fractures using energy-bond-based smoothed particle hydrodynamics
Simulation of brittle fractures using energy-bond-based smoothed particle hydrodynamics Open
In this work, an energy-bond-based smoothed particle hydrodynamics (EB-SPH) model is proposed to study the crack initiation and coalescence of rock under uniaxial compression. The model overcomes the conventional SPH algorithm for computin…
View article: Crack Coalescence Behavior of Rock-Like Specimens Containing Two Circular Embedded Flaws
Crack Coalescence Behavior of Rock-Like Specimens Containing Two Circular Embedded Flaws Open
Experimental research on the growth of internal flaws has rarely been reported due to the fact that it is difficult to cut internal flaws in specimens and cannot capture the initiation and propagation processes of internal flaws through di…
View article: Energy Chaos Characteristic Evolution Analysis of Sandstones during Multilevel Unloading Subject to Different Confining Pressures
Energy Chaos Characteristic Evolution Analysis of Sandstones during Multilevel Unloading Subject to Different Confining Pressures Open
In this study, multilevel and conventional unloading triaxial compression tests under different confining pressures are separately carried out to systematically reveal the deformation, energy evolution, and fracture characteristics of sand…