Squeezing regime

The dynamics of droplet breakup in squeezing regime can be qualitatively described in the following way as the tip of the dispersed phase enters the main channel, it starts to fill the main cross section, while the hydraulic resistance to flow in the thin films, between the dispersed phase interface and the walls of the obstructed microchannel, creates an additional pressure drop along the growing droplet. 

When the dispersed phase flow rate becomes larger than the continuous phase flow rate, the squeezing regime further evolves into the formation of stable parallel flowing streams, starting the dripping regime. 

Gupta, A., Kumar, R. (2010). Effect of geometry on droplet formation in the squeezing regime in a microfluidic T-junction. Microfiuidics and Nanofiuidics, 8, 799-812. 

This assumes that the crown wanted to maximize its proceeds in the long run. It was and is common, of course, for regimes in political or military crises to mortgage their futures by squeezing as much as possible from their forests or their subjects. See, in this context, the superb analytical synthesis of Charles Tilly, Coercion, Capital, and European States, A.D. 990-1992 (Oxford Blackwell, 1990), who stresses the influence of preparation for war and war-making in state formation and describes the transition from "tributary states to states that extract directly from citizens. 

The paper by Katz et al. also focuses on BECs and presents new experimental and theoretical results on excitation evolution and decay in a BEC. As the field of Bose-Einstein condensation is rapidly maturing, new regimes of interest are now coming under scrutiny. These include trapping in various optical lattice potentials - leading to squeezed atomic states and the Mott in-... 

It is evident that the no-energy-transfer regime is not useful for the quadrature squeezing generation. 

Figure 10. Regimes of formation of droplets in micro fluidic T-junction squeezing at low values of the capillary numbers, dripping (with slight dependence of the volume of the droplets on the value of the Ca) for intermediate values of the capillary number, and jetting at high values of Ca (Adapted from Ref [25]).

A. /t>2. In this domain, the segment density in the depletion layer associated with each plate has sufficient distance to rise to the bulk value. Closer approach of the plates simply squeezes out solution at the bulk concentration into the bulk solution. Clearly, no free energy change is involved in this process and the free energy of the system is constant in this regime. 

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