Results 11 to 20 of about 2,372 (156)

Twin mesospheric bores observed over Brazilian equatorial region [PDF]

open access: yesAnnales Geophysicae, 2016
Two consecutive mesospheric bores were observed simultaneously by two all-sky cameras on 19 December 2006. The observations were carried out in the northeast of Brazil at two different stations: São João do Cariri (36.5° W, 7.4° S) and ...
A. F. Medeiros   +7 more
doaj   +1 more source

Deep Rolling of Bores Using Centrifugal Force

open access: yesEngineering Proceedings, 2022
Deep rolling is a mechanical surface treatment for the specific modification of edge zone properties. In this process, the surface is plastically deformed by a rolling element. The roughness, residual stresses and hardness in particular can be positively
Lars Uhlmann   +3 more
doaj   +1 more source

Mesospheric Bore Observations Using Suomi-NPP VIIRS DNB during 2013–2017

open access: yesRemote Sensing, 2018
This paper reports mesospheric bore events observed by Day/Night Band (DNB) of the Visible/Infrared Imaging Radiometer Suite (VIIRS) on the National Oceanic and Atmospheric Administration/National Aeronautics and Space Administration (NOAA/NASA) Suomi ...
Yucheng Su   +7 more
doaj   +1 more source

Preparation and characterization of different geometrical shapes of multi-bore hollow fiber membranes and application in vacuum membrane distillation

open access: yesJournal of Analytical Science and Technology, 2020
Multi-bore hollow fiber membranes were prepared through phase inversion spinning process using new locally designed spinnerets of various geometrical shapes.
Elham M. El-Zanati   +4 more
doaj   +1 more source

Mesospheric bores at southern midlatitudes observed by ISS-IMAP/VISI: a first report of an undulating wave front [PDF]

open access: yesAtmospheric Chemistry and Physics, 2018
Large-scale spatial structures of mesospheric bores were observed by the Visible and near-Infrared Spectral Imager (VISI) of the ISS-IMAP mission (Ionosphere, Mesosphere, upper Atmosphere and Plasmasphere mapping mission from the International Space ...
Y. Hozumi   +4 more
doaj   +1 more source

Against pleasure: the art that bores us

open access: yesANIAV, 2021
The traditional concept of art is closely related to beauty and also to aesthetic pleasure. However, the emergence of avant‐garde and contemporary art has subverted that imagination.
Chao-Yang Lee
doaj   +1 more source

Influence of LPBF Parameters and Strategies on Fine Machining of Pre-Built Bores

open access: yesJournal of Machine Engineering, 2021
Additive manufacturing changes the classical possibilities of production. However, post-processing is usually unavoidable for these components to achieve functional performance.
Heiko Teich   +2 more
doaj   +1 more source

Cavitation in Single-Vane Sewage Pumps

open access: yesInternational Journal of Rotating Machinery, 2008
Chair fluidsystemdynamics at TU Berlin investigated the cavitation behavior of a full-size single-vane sewage pump. Single-vane pumps are used for raw sewage with high content of dirt and sediments in larger sewage pumping stations.
P. U. Thamsen   +3 more
doaj   +1 more source

Correlation Between Pin Misalignment and Crack Length in THT Solder Joints

open access: yesArchives of Metallurgy and Materials, 2017
In this manuscript, correlations were searched for between pin misalignments relative to PCB bores and crack propagation after cyclic thermal shock tests in THT solder joints produced from lead-free solder alloys.
Molnar A., Benke M., Gacsi Z.
doaj   +1 more source

Off-bottom turbulence expansions of unbounded flow over a deep-ocean ridge

open access: yesTellus: Series A, Dynamic Meteorology and Oceanography, 2019
Internal wave breaking upon sloping seafloors is a potential source of turbulent mixing in the deep-ocean, but we lack details on off-bottom breaking. Turbulence processes are relevant for the dispersal away from the seafloor of suspended materials like ...
Hans van Haren
doaj   +1 more source

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