Results 11 to 20 of about 100,929 (235)

Simulation of Friction Stir Extrusion using Smoothed Particle Hydrodynamics (SPH) [PDF]

open access: yesInternational Journal of Advanced Design and Manufacturing Technology, 2022
This research aims to construct a three-dimensional numerical model for modeling friction stir extrusion using the completely Lagrangian method, smoothed particle hydrodynamics (SPH).
Mostafa Akbari   +3 more
doaj   +1 more source

Factors Associated with COVID-19 Vaccine Hesitancy and Case Status among New Jersey Secondary Educational Professionals

open access: yesVaccines, 2023
Background: Vaccine hesitancy remains a societal problem, including during the COVID-19 pandemic. New Jersey (NJ) Safe Schools Program provides work-based learning training to supervisory-level career–technical–vocational education teachers and ...
Juhi Aggarwal   +4 more
doaj   +1 more source

Understanding laser-metal interaction in selective laser melting additive manufacturing through numerical modelling and simulation: a review

open access: yesVirtual and Physical Prototyping, 2022
Selective laser melting (SLM) is the most used and versatile technique for additively manufactured metallic parts. Due to its unique flexibility in enabling the fabrication of complex geometries, it has received great attention, especially in very ...
Abdelkrim Bouabbou, Sebastien Vaudreuil
doaj   +1 more source

Vortex Identification in a Free-Surface Flow Problem Solved Using SPH [PDF]

open access: yesMATEC Web of Conferences, 2022
This article focuses on vortex structure identification methods and their implementation into smoothed particle hydrodynamics (SPH) framework. The most common criteria based on the local velocity gradient tensor analysis like Q-criterion, Δ-criterion ...
Jančík Petr, Hyhlík Tomáš
doaj   +1 more source

Derivation of SPH equations in a moving referential coordinate system [PDF]

open access: yes, 2009
The conventional SPH method uses kernel interpolation to derive the spatial semi-discretisation of the governing equations. These equations, derived using a straight application of the kernel interpolation method, are not used in practice. Instead the
Campbell, James C.   +3 more
core   +1 more source

Providers adherence to essential contents of antenatal care services increases birth weight in Bahir Dar City Administration, north West Ethiopia: a prospective follow up study

open access: yesReproductive Health, 2018
Background Low birth weight (LBW) is one of the most important factors affecting child morbidity and mortality worldwide. Antenatal care (ANC) is an opportunity for reaching pregnant women with a number of interventions that may be vital to their health ...
Tadese Ejigu Tafere   +2 more
doaj   +1 more source

SPH method applied to high speed cutting modelling [PDF]

open access: yes, 2007
The purpose of this study is to introduce a new approach of high speed cutting numerical modelling. A Lagrangian smoothed particle hydrodynamics (SPH)- based model is arried out using the Ls-Dyna software.
Chieragatti, Rémy   +4 more
core   +3 more sources

An Analysis of the Effect of Abrasive/Tool Wear on the Ductile Machining of Fused Silica from the Perspective of Stress

open access: yesMicromachines, 2022
Understanding the influence mechanism of abrasive/tool wear on machining is the key to realize high-efficiency ultra-precision machining of fused silica.
Ming Li   +7 more
doaj   +1 more source

COVID-19 Vaccine Hesitancy among New Jersey Teachers and Impacts of Vaccination Information Dissemination

open access: yesVaccines, 2023
Vaccine hesitancy continues to be prevalent in the United States, especially in relation to the COVID-19 vaccines and its boosters, which have been made increasingly available for public use as the pandemic has progressed.
Kimberly T. Nguyen   +4 more
doaj   +1 more source

Star formation and chemical evolution in SPH simulations: a statistical approach [PDF]

open access: yes, 2001
In Smoothed Particles Hydrodynamics (SPH) codes with a large number of particles, star formation as well as gas and metal restitution from dying stars can be treated statistically.
Carraro, G., Lia, C., Portinari, L.
core   +4 more sources

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