As a promising probe for the new physics beyond standard model of particle in early Universe, predictions stochastic gravitational wave background from cosmological first-order phase transition heavily rely on bubble wall velocity determined by expansion dynamics. The dynamics is governed competition between driving force effective potential difference and backreaction sum thermal friction indu...

We introduce a lateral atomic force microscopy (AFM) method to measure the hydrodynamic drag force acting on a microscopic emulsion droplet moving parallel to a flat surface. A tetradecane oil droplet formed in an aqueous solution of sodium dodecylsulfate was attached to a V-shaped atomic force microscopy cantilever, and lateral hydrodynamic interactions between the droplet and a flat glass sur...

Leukocyte tracking invivo is a state of the techniques used for understanding the complex nature of leukocyte recruitment and the transmigration through endothelial cells. It known that the governing force acting on the individual cells are mainly hydrodynamic, the magnitude and nature of the force is not precisely known. This work was a novel segmentation algorithms based on fuzzy logic to tra...

We report results of investigations of a high-speed drainage of thin aqueous films squeezed between randomly nanorough surfaces. A significant decrease in the hydrodynamic resistance force as compared with that predicted by Taylor's equation is observed. However, this reduction in force does not represent the slippage. The measured force is exactly the same as that between equivalent smooth sur...

Propeller induced structural vibration through the thrust bearing is an important source for low frequency shipboard noise and underwater sound radiation from a submarine hull. Such vibration is investigated using a scaled experimental model. This research concentrates on the experimental characterization of propeller force, hydrodynamic force of the thrust bearing and vibration transmission th...

A nonlinear parameter estimation method has been developed to extract the separation-dependent surface force and cantilever spring constant from atomic force microscope data taken at different speeds for the interaction between a silica colloidal probe and plate in aqueous solution. The distinguishing feature of this approach is that it exploits information from the velocity dependence of the f...