Results 201 to 210 of about 86,930 (291)

Nanoscale fracture mechanisms in defective α‐quartz induced by compression: Insights from molecular dynamics simulation

open access: yesDeep Underground Science and Engineering, EarlyView.
Rock fracture can ultimately be traced to atomic bond breakage. Taking quartz as a representative mineral, this paper employs molecular dynamics to identify the crack initiation and propagation mechanisms for single‐hole cases, as well as crack coalescence modes between double holes under compression, providing a physical basis for multiscale modeling ...
Sheng Li   +4 more
wiley   +1 more source

Non-equilibrium condensation of the first Solar System solids. [PDF]

open access: yesNature
Charnoz S   +5 more
europepmc   +1 more source

Intelligent inversion analysis of dilatancy angle of surrounding rock based on the force of negative Poisson's ratio anchor cable

open access: yesDeep Underground Science and Engineering, EarlyView.
An intelligent inversion framework estimates the dilatancy angle of the surrounding rock from negative Poisson's ratio (NPR) anchor cable force histories. Numerical tunnel‐excavation simulations generate force data across a controlled dilatancy‐angle range, which are mapped to the target parameter using a sequential convolutional neural network (CNN ...
Li Cui   +5 more
wiley   +1 more source

A hierarchical adaptive strategy for selecting rheological models in intelligent backfill mining pipeline transportation systems

open access: yesDeep Underground Science and Engineering, EarlyView.
This graphical abstract presents a hierarchical adaptive strategy for selecting rheological models in intelligent backfill pipeline transportation. Temperature, fly ash content, and water‐cement ratio jointly influence slurry rheological nonlinearity, which is quantified using the Model Fidelity Gain (ΔR2).
Defeng Wang   +3 more
wiley   +1 more source

Transcriptome and proteome analyses reveal divergent adaptive strategies in nasopharyngeal epithelial cells and nasopharyngeal carcinoma cells under ultra‐low background radiation

open access: yesDeep Underground Science and Engineering, EarlyView.
This study demonstrates that the ultra‐low background radiation environment in deep underground laboratories significantly inhibits the proliferation of both normal nasopharyngeal epithelial cells (HNEPC) and nasopharyngeal carcinoma cells (HNE‐1) cells, with malignant cells exhibiting higher sensitivity.
Yuhao Zou   +15 more
wiley   +1 more source

Three‐dimensional hardening‐softening elastoplastic modeling of nondilatant rock‐like materials with nonorthogonal flow rule

open access: yesDeep Underground Science and Engineering, EarlyView.
A novel three‐dimensional elastoplastic constitutive model is developed for nondilatant rock‐like materials under true‐triaxial stress conditions. A piecewise yield function captures the evolution of 3D yield surfaces during hardening‐softening processes, while a fractional‐order‐controlled nonorthogonal flow rule enables flexible regulation of ...
Jiacun Liu   +4 more
wiley   +1 more source

Plant-Microbe Interactions as Emerging Biomanufacturing Platforms for Iron Biofortification, with Rice as a Principal Model. [PDF]

open access: yesLife (Basel)
Ríos-Ruiz WF   +6 more
europepmc   +1 more source

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