Results 11 to 20 of about 122,754 (308)
Case Reports in Infectious Diseases, 2021 Objectives. The objectives of this study were to evaluate the trend of malaria cases and test positivity rate and explore determinant factors in the Amhara Regional State, Ethiopia. Methods. A mixed study design (retrospective record data review and case
Chalachew Yenew +2 more
doaj +1 more source
BMC Public Health, 2020 Background To identify if e-cigarette usage is an on-campus problem for secondary schools and evaluate initial school survey responses. More specifically, this survey can aid in identifying where students are seen using e-cigarettes, if smoke alarms have
Maryanne L. Fakeh Campbell +4 more
doaj +1 more source
Simulation of Friction Stir Extrusion using Smoothed Particle Hydrodynamics (SPH) [PDF]
International 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
Vaccines, 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
A fully resolved SPH-DEM method for heterogeneous suspensions with arbitrary particle shape
Powder Technology, 2021 The study on fluid-solid interaction in heterogeneous suspensions is essential for theoretical research and engineering practice. In this paper, a three-dimensional fully resolved SPH-DEM method is presented to model suspensions with non-Newtonian fluids
Chong Peng +3 more
semanticscholar +1 more source
Vaccines, 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
Virtual 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]
MATEC 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
A multi-resolution SPH method for fluid-structure interactions [PDF]
Journal of Computational Physics, 2019 In this paper, we present a multi-resolution smoothed particle hydrodynamics (SPH) method for modeling fluid-structure interaction (FSI) problems. By introducing different smoothing lengths and time steps, the spatio-temporal discretization is applied ...
Chi Zhang +2 more
semanticscholar +1 more source
Derivation of SPH equations in a moving referential coordinate system [PDF]
, 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