Search
Now showing items 1-10 of 50
Response surface methodology as a powerful tool to optimize the synthesis of polymer-based graphene oxide nanocomposites for simultaneous removal of cationic and anionic heavy metal contaminants
(RSC Advances, 3/28/2017)
Nanocomposites containing graphene oxide (GO), polyethyleneimine (PEI), and chitosan (CS) were synthesized for chromium(VI) and copper(II) removal from water. Response surface methodology (RSM) was used for the optimization ...
On the Classical Theory of the Electron
(Il Nuovo Cimento, 1978-07)
A classical theory of the electron, proposed by one of us several years ago and based on finite-difference equations, is discussed by considering the three possible following cases: radiating electron, absorbing electron ...
A general derivation of the subharmonic threshold for non-linear bubble oscillations
(The Journal of the Acoustical Society of America, 6/5/2013)
The paper describes an approximate but rather general derivation of the acoustic threshold for a subharmonic component to be possible in the sound scattered by an insonified gas bubble. The general result is illustrated ...
Dynamics of Formation of a Vapor Nanobubble Around a Heated Nanoparticle
(The Journal of Physical Chemistry, 8/17/2018)
We study the formation of a nanobubble around a heated nanoparticle in a bulk liquid by using molecular dynamics simulations. The nanoparticle is kept at a temperature above the critical temperature of the surrounding ...
Interaction between a solid particle and a turbulent flow
(New Journal of Physics, 3/24/2010)
The interaction between a fixed solid spherical particle and stationary turbulence with zero mean flow is investigated numerically. The object diameter, D, lies in the inertial range (D?0.6L?0.9??8?, where L, ? and ?, ...
Growing bubbles in a slightly supersaturated liquid solution
(Review of Scientific Instruments, 6/26/2013)
We have designed and constructed an experimental system to study gas bubble growth in slightly supersaturated liquids. This is achieved by working with carbon dioxide dissolved in water, pressurized at a maximum of 1MPa ...
Drop Fragmentation at Impact onto a Bath of an Immiscible Liquid
(Physical Review Letters, 6/28/2013)
The impact of a drop onto a deep bath of an immiscible liquid is studied with emphasis on the drop fragmentation into a collection of noncoalescing daughter drops. At impact the drop flattens and spreads at the surface of ...
Responses of Medial Rectus Motoneurons in Monkeys with Strabismus
(Investigative Ophthalmology & Visual Science, 8/1/2011)
Purpose: Monkeys reared under conditions of alternating monocular occlusion during their first few months of life show large horizontal strabismus, “A” patterns, and dissociated vertical deviation. “A” patterns manifest ...
Heat transfer mechanisms in bubbly Rayleigh-Benard convection
(Physical Review E, 8/17/2009)
The heat transfer mechanism in Rayleigh-Bénard convection in a liquid with a mean temperature close to its boiling point is studied through numerical simulations with pointlike vapor bubbles, which are allowed to grow or ...
Modification of turbulence in Rayleigh-B ?enard convection by phase change
(New Journal of Physics, 2/3/2011)
Heavy or light particles introduced into a liquid trigger motion due to their buoyancy, with the potential to drive flow to a turbulent state. In the case of vapor bubbles present in a liquid near its boiling point, thermal ...