Results 61 to 70 of about 534,298 (301)
Steady-State Hadronic Gamma-Ray Emission from 100-Myr-Old Fermi Bubbles
, 2014 The Fermi Bubbles are enigmatic \gamma-ray features of the Galactic bulge. Both putative activity (within $\sim$ few $\times$ Myr) connected to the Galactic center super-massive black hole and, alternatively, nuclear star formation have been claimed as ...
Bicknell, Geoffrey V. +4 more
core +1 more source
Advanced Engineering Materials, EarlyView.Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley +1 more source
Effects of Salinity on Bubble Cloud Characteristics
Journal of Marine Science and Engineering, 2017 A laboratory experiment investigates the influence of salinity on the characteristics of bubble clouds in varying saline solutions. Bubble clouds were generated with a water jet. Salinity, surface tension, and water temperature were monitored.
Magdalena D. Anguelova, Pablo Huq
doaj +1 more source
Non-biodegradable objects may boost microbial growth in water bodies by harnessing bubbles
Royal Society Open Science, 2021 Given the ubiquity of bubbles and non-biodegradable wastes in aqueous environments, their transport through bubbles should be widely extant in water bodies. In this study, we investigate the effect of bubble-induced waste transport on microbial growth by
Atul Srivastava +2 more
doaj +1 more source
Cosmological Perturbations Generated in the Colliding Bubble Braneworld Universe
, 2001 We compute the cosmological perturbations generated in the colliding bubble braneworld universe in which bubbles filled with five-dimensional anti-de Sitter space (AdS5)expanding within a five dimensional de Sitter space (dS5) or Minkowski space (M5 ...
A. Gorsky +47 more
core +1 more source
Stability of clay particle-coated microbubbles in alkanes against dissolution induced by heating [PDF]
, 2017 We investigated the dissolution and morphological dynamics of air bubbles in alkanes stabilized by fluorinated colloidal clay particles when subjected to temperature changes.
Achakulwisut, Kanvara +5 more
core +1 more source
Planar Solid‐State Nanopores Toward Scalable Nanofluidic Integration Based on CMOS Technology
Advanced Engineering Materials, EarlyView.We present a scalable silicon‐based fabrication strategy for planar solid‐state nanopores to enable their integration with complex nanofluidic systems. Prototype devices demonstrate normal voltage‐current characteristics, good noise performance, and appreciable streaming currents. Our CMOS‐compatible fabrication process offers precise geometric control
Ngan Hoang Pham +7 more
wiley +1 more source
Numerical analysis of bubble growth in a molten steel/(N2,H2) supersaturation system
工程科学学报, 2016 A water/carbon dioxide system was used to study bubble growth dynamics in a molten steel/(N2,H2) supersaturation system. Bubble nucleation and growth mechanism models in the aqueous solution and the molten steel were respectively established.Bubble ...
LIU Jian-hua +5 more
doaj +1 more source
Velocity distribution in the boundary layer of a bubble rising with a rectilinear motion
Nihon Kikai Gakkai ronbunshu, 2020 The boundary layer of a bubble is an important factor that determines its rising velocity. But it is generally very thin to simulate using typical interface capturing method, such as volume of fluid method.
Hiroaki KUSUNO, Toshiyuki SANADA
doaj +1 more source
Manipulating bubbles with secondary Bjerknes forces
, 2015 Gas bubbles in a sound field are submitted to a radiative force, known as the secondary Bjerknes force. We propose an original experimental setup that allows us to investigate in details this force between two bubbles, as a function of the sonication ...
Derec, Caroline +3 more
core +3 more sources