Results 11 to 20 of about 41,577 (259)

Fracture mechanics analysis of multipurpose canister for spent nuclear fuels under horizontal/oblique drop accidents

open access: yesNuclear Engineering and Technology, 2023
In this paper, elastic-plastic fracture mechanics analysis is performed to determine the critical crack sizes of the multipurpose canister (MPC) manufactured using austenitic stainless steel under dynamic loading conditions that simulate drop accidents ...
Jae-Yoon Jeong   +4 more
doaj   +1 more source

Singular jets during the collapse of drop-impact craters [PDF]

open access: yesJournal of Fluid Mechanics, 2018
When a drop impacts on a deep pool at moderate velocity it forms a hemispheric crater which subsequently rebounds to the original free-surface level, often forming Worthington jets, which rise vertically out of the crater centre. Under certain impact conditions the crater collapse forms a dimple at its bottom, which pinches off a bubble and is also ...
S. T. Thoroddsen   +3 more
openaire   +2 more sources

Screening of Potential Biosurfactant Producing Bacteria from Tanjung Perak Port, Surabaya

open access: yesJournal of Experimental Life Science, 2021
Bacteria are bioremediation agents that are advised to overcome water pollution. This study aims to isolate biosurfactant-producing bacteria for bioremediation from Tanjung Perak Port, Surabaya.
Marlinda Elvina Susanti   +2 more
doaj   +1 more source

Pulsed Fluidization of Nanosilica: Rigorous Evaluation of the Efficacy of Pulsation Frequency

open access: yesNanomaterials, 2022
Assisted fluidization techniques can significantly improve the hydrodynamics of difficult- to-fluidize solids. Among these techniques, the pulsed flow strategy is highly promising owing to its cost-effectiveness and amenability to implementation for ...
Mohammad Asif   +2 more
doaj   +1 more source

Forest hoverfly community collapse: Abundance and species richness drop over four decades

open access: yesInsect Conservation and Diversity, 2022
Abstract To study insect decline, an important threat to biodiversity, long‐term datasets are needed. Here we present a study of hoverfly (Diptera: Syrphidae) abundance and diversity in a Dutch forest, surrounded by other forests, and analyse the variation in insect ...
Aat Barendregt   +3 more
openaire   +2 more sources

Effect of Voidage on the Collapsing Bed Dynamics of Fine Particles: A Detailed Region-Wise Study

open access: yesNanomaterials, 2022
Bed collapse experiments provide vital information about fluidized bed hydrodynamics. In this study, the region-wise bed collapse dynamics of glass beads, titania (TiO2), and hydrophilic nanosilica (SiO2) particles with widely different voidages (ε) of 0.
Syed Sadiq Ali   +3 more
doaj   +1 more source

Simulation and analysis of collapsing vapor-bubble clusters with special emphasis on potentially erosive impact loads at walls [PDF]

open access: yesEPJ Web of Conferences, 2018
Cavitation is a process where a liquid evaporates due to a pressure drop and re-condenses violently. Noise, material erosion and altered system dynamics characterize for such a process for which shock waves, rarefaction waves and vapor generation are ...
Ogloblina Daria   +2 more
doaj   +2 more sources

Biodegradation of Premium Motor Spirit using surfactant-expressing bacteria from mechanic workshops in Malumfashi, Katsina State, Nigeria

open access: yesUMYU Journal of Microbiology Research, 2022
Biosurfactant-expressing bacteria have been shown to have potential in many biotechnological applications, including the biodegradation of petroleum fractions, such as premium motor spirit (PMS).
Aminu Aliyu   +4 more
doaj   +1 more source

Controlled cavity collapse: scaling laws of drop formation

open access: yesSoft Matter, 2018
The violent but controlled collapse of liquid cavities is exploited for the generation of diminutive droplets: experiments, simulations and theory.
A. Said Ismail   +4 more
openaire   +7 more sources

Theoretical Prediction of Dynamic Axial Crushing on a Square Tube with Eight Holes Used as a Crush Initiator

open access: yesInternational Journal of Technology, 2019
Thin-walled square steel tubes are part of automobile structures, used as impact energy absorbers on crush boxes. Under axial crushing, such tubes sometimes produces unpredictable folding forms.
Mohammad Malawat   +4 more
doaj   +1 more source

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