Results 31 to 40 of about 29,021 (217)

Determination of stability of epimetamorphic rock slope using Minimax Probability Machine

Geomatics, Natural Hazards & Risk, 2016
The article employs Minimax Probability Machine (MPM) for the prediction of the stability status of epimetamorphic rock slope. The MPM gives a worst-case bound on the probability of misclassification of future data points.
Manoj Kumar, Pijush Samui, Ajay Kumar Naithani   +2 more
doaj   +1 more source

Physical modeling of the rock bolt interaction with the rock massif [PDF]

E3S Web of Conferences, 2019
The results of the physical modeling of the “rock bolt – rock massif” system are presented. The characteristics of rock bolt free oscillations depending on the degree of its clamping and tension were studied on special test benches.
Skipochka Serhii, Krukovskyi Oleksandr, Serhiienko Viktor, Krasovskyi Ihor   +3 more
doaj   +1 more source

Elastic Behavior of Transversely Isotropic Cylindrical Rock Samples under Uniaxial Compression Considering Ideal and Frictional Boundary Conditions

Applied Sciences, 2023
Conceptualizing sophisticated measurement set-ups as well as testing and evaluation procedures for laboratory experiments on anisotropic rocks requires a basic understanding of the potential specimen behavior.
Manuel Bernhard Winkler, Thomas Frühwirt, Thomas Marcher   +2 more
doaj   +1 more source

Acute caffeine treatment protects the developing retina from ischemia‐induced cell death

FEBS Open Bio, EarlyView.
Caffeine reduces cell death in the developing retina under ischemia (OGD). This effect does not involve BDNF upregulation or antioxidant pathways (NRF2/VEGF). Neuroprotection occurs mainly through adenosine A2A receptor antagonism, decreasing glutamate release and excitotoxicity, highlighting caffeine's potential as an acute neuroprotective agent in ...
Amanda Alves Nascimento, Danniel Pereira‐Figueiredo, Gabriella Grossi de Lima Dias, Gabriel Ferreira dos Santos, Mariana Rodrigues Pereira, Rafael Brito, Karin C Calaza   +6 more
wiley   +1 more source

Experimental Study on Mesoscopic Shear Behavior of Calcareous Sand Material with Digital Imaging Approach

Advances in Civil Engineering, 2020
The study of the mesostructure of soil under loading is the basis for understanding its macromechanical properties and for establishing its constitutive model.
Jianhua Shen, Xing Wang, Wenbai Liu, Poyu Zhang, Changqi Zhu, Xinzhi Wang   +5 more
doaj   +1 more source

Artificial Intelligence and Mental Well‐Being in Adult Education: Implications for Practice and Professional Responsibility

New Directions for Adult and Continuing Education, EarlyView.
ABSTRACT Mental well‐being is central to adult learner success, yet many adult education institutions lack capacity to provide timely and accessible support. This article examines how artificial intelligence (AI) can strengthen mental health–adjacent supports in adult and continuing higher education, with attention to professional practice and ...
Adam L. McClain, Thomas Wade
wiley   +1 more source

Research on charge induction law and application of coal samples with different fissures

Scientific Reports, 2023
Indoor testing are performed to explore the charge induction law during the uniaxial compression fracture process of coal samples, and the charge time and frequency domain signals of coal samples with different primary fissures are analyzed in the paper.
Gang Wang, Siqi Gao, Aiwen Wang, Lianpeng Dai, Tianwei Shi, Zengjun Xu   +5 more
doaj   +1 more source

Multimodal Data‐Driven Microstructure Characterization

Advanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang, Santiago Benito, Özge Özgün, Sebastian Weber, Markus Stricker   +4 more
wiley   +1 more source

Energy-based evaluation of sandstone brittleness under triaxial compression: Micromechanical damage approach

Journal of Rock Mechanics and Geotechnical Engineering
Rock brittleness is a critical property in geotechnical and energy engineering, as it directly influences the prediction of rock failure and stability assessment.
Qiaojuan Yu, Shigui Du, Rui Yong, Zhanyou Luo, Changshuo Wang, Yuanjun Lv, Zeping Zhang   +6 more
doaj   +1 more source

Numerical modeling of saturation type and lateral pressure influences on thermo-mechanical stresses caused by laser drilling in granite and limestone

International Journal of Geo-Engineering, 2018
Numerical methods for study effect of parameters on rock behaviour have increased in recent decades. Simulation is an important tool for analysis which the possibility of doing it is not feasible under experimental conditions and the possibility of ...
Abdollah Dini, Morteza Ahmadi
doaj   +1 more source