Results 51 to 60 of about 1,368,722 (222)

Nonlinear Vibration of a Nonlocal Nanobeam Resting on Fractional-Order Viscoelastic Pasternak Foundations

Fractal and Fractional, 2018
In the present study, the nonlinear vibration of a nanobeam resting on the fractional order viscoelastic Winkler–Pasternak foundation is studied using nonlocal elasticity theory.
Guy Joseph Eyebe, Gambo Betchewe, Alidou Mohamadou, Timoleon Crepin Kofane   +3 more
doaj   +1 more source

Analytical Solutions and Analyses for the Deflection of Nonlinear Waves on Kirchhoff Plates Underlying a Pasternak-like Nonlinear Elastic Foundation

Mathematics
The present study models the deflection of nonlinear waves over a Kirchhoff plate underlying a Pasternak-like elastic foundation. A promising version of the tanh expansion analytical method has been deployed for the construction of regular exact ...
Asma AlThemairi, Rahmatullah I. Nuruddeen, Roger Bertin Djob   +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

Response of an Elastic Plate on a Pasternak Foundation to a Moving Load

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A, 1980
This paper considers the response of an elastic plate to a moving load. The plate is resting on a Pasternak foundation and the load moves uniformly with a constant velocity. The deflection of the plate is expressed in the form of integration. Combinations of the velocity and the foundation parameters yield the expression in five types of integration ...
openaire   +3 more sources

Evolutionary Conserved and Divergent Responses to Copper Zinc Superoxide Dismutase Inhibition in Plants

Plant, Cell &Environment, EarlyView.
ABSTRACT After an initial evolution in a reducing environment, life got successively challenged by reactive oxygen species (ROS), especially during the great oxidation event (GOE) that followed the development of photosynthesis. Therefore, ROS are deeply intertwined into the physiological, morphological and transcriptional responses of most present‐day
Stephanie Frohn, Fabian B. Haas, Benjamin G. Chavez, Bernd H. Dreyer, Erik V. Reiss, Anne Ziplys, Heiko Weichert, Saskia Hiltemann, José M. Ugalde, Andreas J. Meyer, John C. D'Auria, Stefan A. Rensing, Jos H. M. Schippers   +12 more
wiley   +1 more source

Iron homeostasis in the annual and perennial stem zones of Arabis alpina

Plant Biology, EarlyView.
Iron accumulates in secondary growth tissues in the perennial stem zone and is correlated with particular gene expression patterns in the perennial model plant Arabis alpina. Abstract Plants store nutrients, including the micronutrient iron, in bioavailable forms to support growth in subsequent seasons. The perennial lifestyle is preponderant in nature.
A. Sergeeva, H.‐J. Mai, P. Bauer
wiley   +1 more source

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

A Finite Element Study of the Bending Behavior of Beams Resting on Two-Parameter Elastic Foundation

Bulletin of the Polytechnic Institute of Jassy: Constructions, Architechture Section, 2006
Although the Winkler’s model is a poor representation of the many practical subgrade or subbase materials, it is widely used in soil-structure problems for almost one and a half century.
Iancu-Bogdan Teodoru, Vasile Muşat, M. Vrabie   +2 more
doaj  

“Is This Edible Anyway?” The Impact of Culture on the Evolution (and Devolution) of Mushroom Knowledge

Topics in Cognitive Science, EarlyView.
Abstract Mushrooms are a ubiquitous and essential component in our biological environment and have been of interest to humans around the globe for millennia. Knowledge about mushrooms represents a prime example of cumulative culture, one of the key processes in human evolution.
Andrea Bender, Åge Oterhals
wiley   +1 more source

MODES OF VIBRATION OF THE BEAMS UNDER THE INFLUENCE OF DISCONTINUITY IN FOUNDATION

Facta Universitatis. Series: Mechanical Engineering, 2014
Vibrations of the Timoshenko beams resting on the Winkler and Pasternak elastic foundation with discontinuity are investigated in this paper. A p-version finite element method that accounts for shear deformation is used.
Vladimir Stojanović, Pedro Ribeiro
doaj