Results 41 to 50 of about 1,035,442 (200)

Nonlinear finite element analysis of vibration of multi-walled carbon nanotubes with geometric imperfection resting on elastic foundations in a thermal–magnetic environment

open access: yesPartial Differential Equations in Applied Mathematics, 2021
This paper presents nonlinear finite element analysis of the systems of partial differential equations (PDEs) that govern the vibration dynamics and stability responses of slightly curved Multi-walled carbon nanotubes (MWCNTs) by means of nonlocal ...
M.G. Sobamowo, A.A. Yinusa
doaj   +1 more source

Investigation on tunnel stability considering pipe‐roof support with transparent soil technology

open access: yesDeep Underground Science and Engineering, EarlyView.
This study integrates transparent soil technology, 3D reconstruction and numerical simulation to captures the full‐field deformation of shield tunnel instability. Results demonstrate that pipe‐roof support enhances stability via the “soil‐arching barrier effect,” effectively restraining failure wedge development by extending stress transfer paths ...
Zhi Jia   +4 more
wiley   +1 more source

Bending analysis of magnetoelectroelastic nanoplates resting on Pasternak elastic foundation based on nonlocal theory [PDF]

open access: yesApplied Mathematics and Mechanics, 2020
AbstractBased on the nonlocal theory and Mindlin plate theory, the governing equations (i.e., a system of partial differential equations (PDEs) for bending problem) of magnetoelectroelastic (MEE) nanoplates resting on the Pasternak elastic foundation are first derived by the variational principle.
Feng, Wenjie   +3 more
openaire   +2 more sources

Unraveling Suicidal Ideation and Behaviors in a Global Cohort of Individuals at Clinical High‐Risk for Psychosis: Multivariable Correlates and Subthreshold Psychotic Symptoms

open access: yesActa Psychiatrica Scandinavica, EarlyView.
ABSTRACT Introduction Suicidal ideation and behaviors (SIB) are common among individuals at clinical high risk for psychosis (CHR‐P), but their relationship with the overall clinical profile remains unclear. This study aimed to identify sociodemographic/clinical factors associated with SIB in CHR‐P individuals and to examine whether subthreshold ...
Stefano Damiani   +73 more
wiley   +1 more source

Nonlinear Vibration of Multilayer Nonhomogeneous Moderately-Thick Cylindrical Shells on Three-Parameter Nonlinear Foundations [PDF]

open access: yesJournal of Applied and Computational Mechanics
This study focuses on the analysis of the nonlinear vibration behavior of nonhomogenous isotropic (NHI) multilayered cylindrical shells resting on three-parameter nonlinear elastic foundations (Winkler-Pasternak type) within a theoretical framework based
Abdullah H. Sofiyev   +2 more
doaj   +1 more source

Living in the Mycelial World

open access: yesTopics in Cognitive Science, EarlyView.
Abstract This manuscript documents a systematic ethnomycological analysis of ethnographic archives. Focusing on texts describing human–fungi interactions, I conduct a global, cross‐cultural review of mushroom use, covering 193 societies worldwide. The study reveals diverse mushroom‐related cultural practices, emphasizing the significance of fungi ...
Roope O. Kaaronen
wiley   +1 more source

Free vibration analysis of tapered beam-column with pinned ends embedded in Winkler-Pasternak elastic foundation [PDF]

open access: yes, 2010
The current study presents a mathematical model and numerical method for free vibration of tapered piles embedded in two-parameter elastic foundations. The method of Discrete Singular Convolution (DSC) is used for numerical simulation.
Civalek, Omer, Ozturk, Baki
core   +1 more source

Investigating the Thermomechanical Stability and Vibration of Curved Smart Sandwich Nanoplates Integrated With a Hexachiral Auxetic Core and Magneto‐Electro‐Elastic Surface Layers

open access: yesZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Volume 106, Issue 9, September 2026.
ABSTRACT This study investigates the thermal vibration and buckling characteristics of smart sandwich nanoplates featuring a hexachiral auxetic core and piezoelectric/piezomagnetic face sheets. Utilizing the nonlocal strain gradient theory (NSGT) and a higher‐order shear deformation framework, the governing equations are derived to capture size ...
Mustafa Buğday, İsmail Esen
wiley   +1 more source

Moore–Gibson–Thompson Thermoelastic Model Effect of Laser-Induced Microstructures of a Microbeam Sitting on Visco-Pasternak Foundations

open access: yesApplied Sciences, 2022
Due to the intricacy of this topic, the thermal study of microstructures on triple-parameter foundations subjected to ultrafast laser pulses has not received much attention.
Ahmed E. Abouelregal   +2 more
doaj   +1 more source

Effects of Dietary Activated Charcoal Supplementation on Performance, Egg Quality, and Bone Calcification in Laying Hens Exposed to High Fluoride

open access: yesJournal of Animal Physiology and Animal Nutrition, Volume 110, Issue 5, Page 624-641, September 2026.
ABSTRACT The aim of the present study was to determine the effects of high dietary fluoride intake on performance, egg quality, serum biochemical parameters, bone tissue, mineral accumulation, and the expression of selected mineralisation‐related genes in laying hens, and to evaluate whether these effects could be alleviated by dietary activated ...
Muhammed Serkan Sevim, Emre Yilmaz
wiley   +1 more source

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