Results 61 to 70 of about 14,440,086 (240)

A Unifying Approach to Self‐Organizing Systems Interacting via Conservation Laws

open access: yesAdvanced Intelligent Discovery, EarlyView.
The article develops a unified way to model and analyze self‐organizing systems whose interactions are constrained by conservation laws. It represents physical/biological/engineered networks as graphs and builds projection operators (from incidence/cycle structure) that enforce those constraints and decompose network variables into constrained versus ...
F. Barrows   +7 more
wiley   +1 more source

AI‐BioMech: Deep Learning Prediction of Mechanical Behavior in Aperiodic Biological Cellular Materials

open access: yesAdvanced Intelligent Discovery, EarlyView.
AI‐BioMech is a deep learning framework that predicts the mechanical behavior of biological cellular materials directly from 2D images. By replacing traditional finite element analysis with semantic segmentation, it identifies stress and strain distributions with 99% accuracy, offering a high‐speed, scalable alternative for analyzing complex, aperiodic
Haleema Sadia   +2 more
wiley   +1 more source

Modelling of Formation Pore Pressure Inversion during Tight Reservoir Drilling

open access: yesGeofluids, 2021
Identifying and controlling a kicking well hinge on quickly obtaining reliable and accurate formation pore pressure. In this study, we derive an analytical model for estimating formation pore pressure when a gas kick occurs during tight reservoir ...
Xiaohui Sun   +4 more
doaj   +1 more source

Stabilization of a Nonholonomic Car Model with Off-Hooked Trailers

open access: yes2024 32nd Mediterranean Conference on Control and Automation (MED)
This is a preprint version of the paper submitted to MED ...
Alexander Zuyev 0001   +1 more
openaire   +3 more sources

Quantifying Structure‐Dependent Rigidity of 3D DNA Origami Boxes

open access: yesAdvanced Intelligent Systems, EarlyView.
We investigate the mechanical stability of a hollow 3D DNA origami box during assembly using liquid AFM imaging and finite element simulations. As structural completeness increases from flat sheets through intermediate assemblies to a closed box, rigidity improves.
Judith Zubia‐Aranburu   +5 more
wiley   +1 more source

Wellbore stability analysis based on the combination of geomechanical and petrophysical studies

open access: yesResults in Engineering
Determining the physical and mechanical properties of rocks is crucial for planning drilling operations. Ignoring geomechanical studies and tools has led to millions of dollars in additional costs related to drilling, meshwork optimization, production ...
Abdolmanan Ounegh   +3 more
doaj   +1 more source

Analytical Model for Hook Anchor Pull-Out [PDF]

open access: yes, 1995
A simple analytical model for the pull-out of a hook anchor is presented. The model is based on a simplified version of the fictitious crack model. It is assume that the fracture process is the pull-off of a cone shaped concrete part, simplifying the problem by assuming pure rigid body motions allowing elastic deformation only in a layer between the ...
Brincker, Rune   +4 more
openaire   +3 more sources

Exposure to heat waves and drought improves subsequent leaf heat tolerance for five oak species in southern California

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Given the threats of climate change, we investigated the impact of high temperatures separately and in combination with reduced soil water on leaf heat tolerance for five oaks (Fagaceae) with overlapping ranges in southern California, USA: Quercus agrifolia and Q. chrysolepis (evergreen species), Q. douglasii and Q.
Casey D. Wisely   +7 more
wiley   +1 more source

Single hook model of fiber figures in card webs [PDF]

open access: yesTextile Research Journal, 2015
In card webs, many fibers are not straight and generally have hooks or bends. In this study, a one-dimensional fiber figure model is discussed. Using correlation coefficients, a simple classification method for fiber figures is proposed. This method enables us to classify fiber figures into five categories: straight, leading- and trailing-hooked, and ...
Akio Sakaguchi, Hirokazu Kimura
openaire   +1 more source

Design and Dynamic Performance Evaluation of a Novel 6W4L Wheel-Legged Robot

open access: yesMachines
To improve the mobility of mobile robots in complex terrain environments, a novel 2-UPS&PRPU parallel mechanism is proposed, for which the parallel mechanism branched-chain decomposition and synthesis method is adopted.
Weiwei Hu   +4 more
doaj   +1 more source

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