The $1s^2->1s2p(^1P)$ excitation in confined and compressed helium atoms either the bulk material or encapsulated a bubble is shifted to energies higher than that free atom. For helium, energy shifts predicted from non-empirical electronic structure computations are excellent agreement with experimentally determined values. However, there significant discrepancies both between results of experi...

Micrometer-sized bubbles are formed in the water suspension with absorptive pigment particles due to local heating. The heating is performed by moderately focused CW nearinfrared laser radiation controllable power. Depending on power, regimes of bubble generation, stable growth existing bubbles, stationary and their shrinkage collapse realized. physical pattern interpreted based temperature con...

Combustion reactions quench in small volumes due to fast heat escape via the volume boundary. Nevertheless, the reaction between hydrogen and oxygen was observed in nanoand micro-bubbles. The bubbles containing a mixture of gases were produced in microsystems using electrochemical decomposition of water with a fast switching of voltage polarity. In this paper, we review our experimental results...

Hydrodynamics of multiple rising bubbles as a fundamental two-phase phenomenon is studied numerically by lattice Boltzmann method and using Lee two-phase model. Lee model based on Cahn-Hilliard diffuse interface approach uses potential form of intermolecular forces and isotropic finite difference discretization. This approach is able to avoid parasitic currents and leads to a stable procedure t...

Shear thinning of non-colloidal suspensions involving multi-scaled air bubbles is studied. It observed that the presence significantly affects transition and equilibrium rheological behavior. Large enhance shear system by increasing particle loading at low rates, whereas nano-bubbles suppress introducing additional repulsive interactions between smooth solid spheres, which also hinder polymeric...

Gases, liquids, and solids trapped underneath 2D materials deform the atomically thin material into micro- nano-bubbles. Bubbles can form spontaneously or in controlled manners. Direct indirect methods were used to probe chemical contents inside these bubbles. There are a vast number of combinations possible for matter that bubble, which makes bubbles versatile platform exploring rich nanoscale...