Results 1 to 10 of about 19,700,178 (306)

Nonlinear Vibration of Multi-Walled Carbon Nanotubes with Initial Curvature Resting on Elastic Foundations in a Nonlinear Thermo-Magnetic Environment

open access: yesEngineering Transactions, 2021
The present work focuses on nonlinear dynamics models of multi-walled carbon nanotubes with initial curvature resting on Winkler-Pasternak elastic foundations in a nonlinear thermomagnetic environment using nonlocal elasticity theory. The derived systems
Gbeminiyi Musibau SOBAMOWO   +4 more
doaj   +1 more source

Sub-Saharan Africa Freshwater Fisheries under Climate Change: A Review of Impacts, Adaptation, and Mitigation Measures

open access: yesFishes, 2022
Sub-Saharan Africa’s freshwater fisheries contribute significantly to the livelihoods and food security of millions of people within the region. However, freshwater fisheries are experiencing multiple anthropogenic stressors such as overfishing, illegal ...
Rodney Tatenda Muringai   +2 more
doaj   +1 more source

Small scale integrated Sachs-Wolfe effect [PDF]

open access: yesPhysical Review D, 1994
The integrated Sachs-Wolfe effect (ISW) can be an important factor in the generation of Cosmic Microwave Background anisotropies on all scales, especially in a reionized curvature or lambda dominated universe. We present an analytic treatment of the ISW effect, which is analogous to thick last scattering surface techniques for the Doppler effect, that ...
Hu, Wayne, Sugiyama, Naoshi
openaire   +3 more sources

Transient dynamic analysis of functionally graded micro-beams considering small-scale effects

open access: yesArchives of Mechanics, 2021
A domain-boundary element method, based on modified couple stress theory, is developed for transient dynamic analysis of functionally graded micro-beams.
I. Eshraghi, S. Dag
doaj   +1 more source

Analytical Solutions of Viscoelastic Nonlocal Timoshenko Beams

open access: yesMathematics, 2022
A consistent nonlocal viscoelastic beam model is proposed in this paper. Specifically, a Timoshenko bending problem, where size- and time-dependent effects cannot be neglected, is investigated.
Francesco Paolo Pinnola   +3 more
doaj   +1 more source

EFFECTS OF COVID-19 ON SMALL-SCALE AGRIBUSINESS IN ENUGU STATE, NIGERIA [PDF]

open access: yesScientific Papers Series : Management, Economic Engineering in Agriculture and Rural Development, 2021
COVID-19 is one of the deadliest infectious disease that has affected mankind in recent time. The disease affected both public and private businesses. Thus, it has impacted negatively on the economy of many nations in the world.
Chinedum Jachinma CHIEMELA   +4 more
doaj  

APPLICATION OF THE FAILURE MODE AND EFFECTS ANALYSIS TOOL IN SMALL- SCALE AGROINDUSTRIAL SUPPLY CHAINS

open access: yesVisión de Futuro, 2022
The functioning of Agroindustrial Supply Chains is affected by the different internal and external contexts in which they develop. The objective of this work is to apply the Failure Mode and Effects Analysis method in an agroindustrial production chain ...
Silvana Elizabet Castillo   +1 more
doaj   +1 more source

Effects of small‐scale dynamo and compressibility on the Λ effect [PDF]

open access: yesAstronomische Nachrichten, 2019
AbstractThe Λ effect describes a rotation‐induced nondiffusive contribution to the Reynolds stress. It is commonly held responsible for maintaining the observed differential rotation of the Sun and other late‐type stars. Here, the sensitivity of the Λ effect to small‐scale magnetic fields and compressibility is studied by means of forced turbulence ...
openaire   +4 more sources

Effects of prescribed fire on topsoil properties: a small-scale straw burning experiment

open access: yesJournal of Hydrology and Hydromechanics, 2022
A grassland was burned to investigate how a short prescribed fire affected soil physical and hydraulic properties, soil water balance, and emergent vegetation.
Li Tailin   +4 more
doaj   +1 more source

Impacts of Small-Scale Effect and Nonlinear Damping on the Nonlinear Vibrations of Electrostatic Microresonators

open access: yesMicromachines, 2023
Although the small-scale effect and nonlinear damping on the nonlinear vibration of microbeam electrostatic resonators are important, they have been overlooked by researchers.
Dayao Meng, Kun Huang, Wei Xu
doaj   +1 more source

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