Results 141 to 150 of about 12,048 (309)
Meitan xuebaoIn underground rock engineering, the liquid-filled rock joints are inevitably subjected to dynamic disturbances such as earthquakes and blasting. The fluidity of liquids leads to distinct spatial distribution patterns within inclined joints under the ...
Jianbo ZHU +6 more
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Numerical study of the mechanical behaviour of rock joints and non-persistent jointed rock masses
, 2014 The mechanical behaviour of a rock mass is significantly controlled by the presence of discontinuities, and understanding the effect of discontinuities is essential in the economical and reliable design of rock structures. This research investigated the effect of roughness and persistency of rock joints on the mechanical behaviour of rock structures ...
openaire +2 more sources
Optimizing 3D Bin Packing of Heterogeneous Objects Using Continuous Transformations in SE(3)
Advanced Intelligent Systems, EarlyView.This article presents a method for solving the three‐dimensional bin packing problem for heterogeneous objects using continuous rigid‐body transformations in SE(3). A heuristic optimization framework combines signed‐distance functions, neural network approximations, point‐cloud bin modeling, and physics simulation to ensure feasibility and stability ...
Michele Angelini, Marco Carricato
wiley +1 more source
Collaborative Visual Localization for Modular Self‐Reconfigurable Robots
Advanced Intelligent Systems, EarlyView.Relative localization in modular self‐reconfigurable robots is challenged by hardware limitations, constrained fields of view, and sensor faults. This paper, based on the SnailBot platform, presents a vision‐based collaborative localization method that combines ArUco markers with learning‐based algorithms to enable robust pose estimation from ...
Guanqi Liang +4 more
wiley +1 more source
Study on material point failure probability of complex jointed rock masses based on peridynamics
Scientific ReportsIn rock masses, the presence of numerous randomly distributed joints introduces uncertainty, making the prediction of failure paths challenging. Among these, key joints significantly influence rock mass fracturing. This study proposes a peridynamics (PD)
Yigong Zhao +4 more
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Reinforcing Effect of Rock Bolt in Rock Joint
Soils and Foundations, 1988 Yoshinaka, Ryunoshin +2 more
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Cteno‐Bot: An Untethered Metachronally Swimming Robot With Magnetoactive Propulsors
Advanced Intelligent Systems, EarlyView.We present Cteno‐bot, an untethered ctenophore‐inspired robot which swims using metachronally coordinated appendages. A single mechanism controls up to 216 magnetoactive propulsors via a dynamically varying magnetic field. We show that the swimming speed of the robot can be increased without a corresponding increase in power requirement, simply by ...
David J. Peterman, Margaret L. Byron
wiley +1 more source
British Educational Research Journal, EarlyView., 2023 Abstract Children's relationship with time in preschools is an under‐researched area. Young children rarely know how to measure time using a clock, but their experiences of time may contribute to understanding children's well‐being and debates about quality in preschools.
Kristín Dýrfjörð +3 more
wiley +1 more source
A Takagi-Sugeno fuzzy model for predicting the clean rock joints shear strength
REM: International Engineering JournalIt is well known that learning about the mechanical behavior of a fractured rock mass depends on the shear behavior of its discontinuities. Several studies have shown that the shear behavior of unfilled rock discontinuities depends on their boundary ...
Yago Machado Pereira de Matos +2 more
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AI &Innovation, EarlyView.ABSTRACT Open‐source artificial intelligence is widely promoted as a democratising pathway to digital sovereignty for African states, offering access to frontier architectures without prohibitive capital investment. This paper investigates whether open‐source AI represents a credible route to autonomy or generates a new form of structural dependency ...
Ololade A. Shonubi
wiley +1 more source