Results 31 to 40 of about 231 (175)

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

Partial 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

Higher-Order Thermo-Elastic Analysis of FG-CNTRC Cylindrical Vessels Surrounded by a Pasternak Foundation [PDF]

Nanomaterials, 2019
This study analyses the two-dimensional thermo-elastic response of functionally graded carbon nanotube-reinforced composite (FG-CNTRC) cylindrical pressure vessels, by applying the third-order shear deformation theory (TSDT). The effective properties of FG-CNTRC cylindrical pressure vessels are computed for different patterns of reinforcement ...
Masoud Mohammadi, Mohammad Arefi, Rossana Dimitri, Francesco Tornabene   +3 more
openaire   +4 more sources

Nonlinear stability of shear deformable eccentrically stiffened functionally graded plates on elastic foundations with temperature-dependent properties

Science and Engineering of Composite Materials, 2017
This article investigates the nonlinear stability of eccentrically stiffened moderately thick plates made of functionally graded materials (FGM) subjected to in-plane compressive, thermo-mechanical loads.
Cong Pham Hong, Ngoc An Pham Thi, Duc Nguyen Dinh   +2 more
doaj   +1 more source

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

Deep 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, Yunpeng Ji, Zhao Lu, Honghua Zhao, Limin Zhang   +4 more
wiley   +1 more source

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

Journal 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, Tarkan Vergül, Fethi Kadıoglu   +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

Journal of Animal Physiology and Animal Nutrition, EarlyView.
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

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

Applied 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, Ioannis Dassios, Osama Moaaz   +2 more
doaj   +1 more source

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

Applied 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, Yan, Zhen, Lin, Ji, Zhang, C. Z.   +3 more
openaire   +2 more sources

Living in the Mycelial World

Topics 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

Calculation method for internal force and deformation of the prestressed I-beam on the elastic foundation

Frontiers in Earth Science, 2023
The elastic foundation beam theory has been widely used in civil engineering, including railway, tunnel, and building foundations. With the development of fabricated structures, more elastic foundation beams need to be prestressed.
Yangsheng Ye, Shaowei Wei, Shaowei Wei, Degou Cai, Jianmin Yang, Jianmin Yang, Peiyong Wei, Peiyong Wei, Cuihong Yue, Cuihong Yue, Shangrui Wu, Shangrui Wu   +11 more
doaj   +1 more source