A modified model has been analytically developed to describe the induction time of an elliptic air bubble in contact with an elliptic hydrophobic oil droplet. The role of hydrophobicity was revealed in the slippage of liquid over the surfaces of bubble and droplet. In this condition, the analytical relationships for pressure distribution and consequently hydrodynamic resistance force through th...

One of the key reasons for deterioration antenna pointing accuracy radio telescopes is deformation and tilt alidades, which primarily result from track unevenness thermal gradients. A high-precision inclinometer measurement system installed to investigate alidade errors caused thermally. An environment control box with a leveling base was designed reduce interference external environment, prove...

Bubble sensing pdf Bubble-Sensing: A New Paradigm for Binding a Sensing Task to the Physical. seminar on bubble sensing.pdf Bubble-sensing locations to acquire tasks and do the sensing on behalf of the.used in current participatory sensing applications, and assess the threats to user. bubble sensing pdf download The Bubble-sensing model 68, 69 is a hybrid alternative to the purely.Jan 22, 2012....

Main result. It is well known that of all surfaces surrounding an area with a given volume V, the sphere has the smallest area. This result explains, e.g., why a soap bubble tends to become a sphere. More than a hundred years ago, the Belgian physicist J. Plateaux asked a similar question: what is the least area surface enclosing two equal volumes? Physical experiments with bubbles seem to indi...

Materials and methods 40 patients (36 women, 4 men) were included (mean age 27 years); average time since surgery was 135 months. The mean residual major curve Cobb angle was 35.4°. Lumbar mobility was measured during forward and lateral lumbar flexions using a dual digital inclinometer. Patients fulfilled the SRS22 Questionnaire and the Quality of Life in Spine Deformities Profile to estimate ...

Effect of interparticle force on the hydrodynamics of gas-solid fluidized beds was investigated using the combined method of computational fluid dynamics and discrete element method (CFD-DEM). The cohesive force between particles was considered to follow the van der Waals equation form. The model was validated by experimental results from literature in terms of bed voidage distribution and Eule...

Two-phase flow regimes are affected by conduit position, alignment, geometry, flow direction, physical characteristics, and flow rate of each phase as well as the heat flux toward the boundaries. Due to the importance of two-phase flow, numerous regimes have been identified. The first step in studying micro-bubble formation inside a venturi tube is to recognize the type of flow regimes. In this...

a modified model has been analytically developed to describe the induction time of an elliptic air bubble in contact with an elliptic hydrophobic oil droplet. the role of hydrophobicity was revealed in the slippage of liquid over the surfaces of bubble and droplet. in this condition, the analytical relationships for pressure distribution and consequently hydrodynamic resistance force through th...