Results 31 to 40 of about 488 (175)

Free vibration of thick composite plates on non-homogeneous elastic foundations by dynamic stiffness method

Vietnam Journal of Mechanics, 2013
This research presents a new model for vibration analysis of thick laminated plates on a non-homogeneous elastic foundation by the Dynamic Stiffness Method(DSM).
Nguyen Manh Cuong, Tran Ich Thinh, Ta Thi Hien, Dinh Gia Ninh   +3 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

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

Dynamic analysis of FG stepped truncated conical shells surrounded by Pasternak elastic foundations [PDF]

Vietnam Journal of Mechanics, 2020
This research presents a continuous element model for solving vibration problems of FG stepped truncated conical shells having various material properties and surrounded by Pasternak foundations. Based on the First Order Shear Deformation Theory (FSDT) and the equations of the FGM conical shells, the dynamic stiffness matrix is obtained for each ...
Le Quang Vinh, Nguyen Manh Cuong
openaire   +2 more sources

Brittle Creep as a Mechanism for Postseismic Relaxation in Upper Crustal Dolomite Marble

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 7, July 2026.
Abstract In many locations, earthquakes in the upper crust occur in carbonate rocks, whose deformation affects aftershock sequences and postseismic relaxation. We investigate the stress relaxation process and strain evolution in Jinping dolomite marble (porosity <0.2%) subjected to multi‐stage stress ramp‐relaxation cycles under confining pressures of ...
Shuting Miao, Pengzhi Pan, François Renard, Erik Rybacki, Arno Zang   +4 more
wiley   +1 more source

Bending of Functionally Graded Sandwich Nanoplates Resting on ‎Pasternak Foundation under Different Boundary Conditions [PDF]

Journal of Applied and Computational Mechanics, 2020
This article proposes a refined higher order nonlocal strain gradient theory for stresses and deflections of new model of functionally graded (FG) sandwich nanoplates resting on Pasternak elastic foundation.
Ahmed A. Daikh, Ashraf M. Zenkour
doaj   +1 more source

Torsional Vibration Analysis of Double‐Walled Carbon Nanotubes Incorporating Viscoelasticity and Nonlocal Elasticity Under Deformable Boundary Conditions

ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Volume 106, Issue 6, June 2026.
ABSTRACT This study investigates the torsional vibration characteristics of double‐walled carbon nanotubes (DWCNTs) considering viscoelastic effects and nonlocal elasticity theory. The equations of motion are formulated based on the nonlocal constitutive relations and viscoelastic material behavior to accurately capture the small‐scale and time ...
Murat Akpınar, Hayrullah Gün Kadıoğlu, Mustafa Özgür Yaylı   +2 more
wiley   +1 more source

DQ thermal buckling analysis of embedded curved carbon nanotubes based on nonlocal elasticity theory

Latin American Journal of Solids and Structures
To investigate the thermal buckling of curved carbon nanotubes (CCNTs) embedded in an elastic medium, nonlocal elasticity theory is employed in combination with the theory of thin curved beams.
AliReza Setoodeh, Morteza Derahaki, Navid Bavi   +2 more
doaj   +1 more source

Stability of Cracked Plates with Nonlinearly Variable Thickness Resting on Elastic Foundations

Journal of Materials and Engineering Structures, 2022
In this paper, the stability of rectangular cracked plates with nonlinearly variable thickness resting on the elastic foundations is studied. The thickness of the plate varies exponentially along the x-axis.
Vinh An LE, Minh Phuc PHAM, Tuan Anh BUI
doaj