scholarly journals STABILITY OF CHARGED DROP ISSUING FROM A FINE CAPILLARY

1976 ◽  
Vol 9 (6) ◽  
pp. 440-444 ◽  
Author(s):  
SUMITOSHI OGATA ◽  
TAKASHI KAWASHIMA ◽  
OSAMU NAKAYA ◽  
HISASHI SHINOHARA
Keyword(s):  
Charged Drop ◽  
Fine Capillary

On the interaction between a charged drop and an external acoustic field

2002 ◽  
Vol 47 (3) ◽  
pp. 299-305
Author(s):  
A. I. Grigor’ev ◽  
A. P. Gaibov ◽  
S. O. Shiryaeva
Keyword(s):  
Acoustic Field ◽  
Charged Drop ◽  
External Acoustic Field

Diffusiophoresis of a charged drop

2018 ◽  
Vol 852 ◽  
pp. 37-59 ◽  
Author(s):  
Fan Yang ◽  
Sangwoo Shin ◽  
Howard A. Stone
Keyword(s):  
Analytical Solution ◽  
Oil Recovery ◽  
Electrolyte Solution ◽  
Solute Concentration ◽  
Solid Particles ◽  
Concentration Gradients ◽  
Charged Drop ◽  
Electric Stress ◽  
Potential Applications ◽  
Soft Objects

Diffusiophoresis describes the motion of colloids in an electrolyte or non-electrolyte solution where there is a concentration gradient. While most of the studies of diffusiophoresis focus on the motion of solid particles, soft objects such as drops and bubbles are also known to experience diffusiophoresis. Here, we investigate the diffusiophoresis of charged drops in an electrolyte solution both analytically and experimentally. The drop is assumed to remain spherical. An analytical solution of the diffusiophoretic velocity of drops is obtained by perturbation methods. We find that the flow inside the drop is driven by the tangential electric stress at the interface and it directly influences the diffusiophoretic speed of the drop. Using charged oil droplets, we measure the drop speed under solute concentration gradients and find good agreement with the analytical solution. Our findings have potential applications for oil recovery and drug delivery.

scholarly journals The evolution of pre-operative spine tumour embolization

2019 ◽  
Vol 92 (1100) ◽  
pp. 20180899 ◽  
Author(s):  
Nima Omid-Fard ◽  
Charles G Fisher ◽  
Manraj KS Heran
Keyword(s):  
Case Series ◽  
Vascular Anatomy ◽  
Arteriovenous Shunting ◽  
Technical Parameters ◽  
Capillary Networks ◽  
Embolic Agents ◽  
Liquid Embolic ◽  
Fine Capillary ◽  
Spine Tumour ◽  
Tumour Characteristics

Pre-operative spine tumour embolization is a useful adjunct to minimize operative complications and blood loss during complex resections. While the efficacy of this procedure has been well studied, relatively little is documented regarding how to optimize technical parameters for tumour characteristics. This pictorial case series seeks to review our centre’s experience over the last decade in using a range of embolization techniques. As experience with this procedure has matured, we propose an approach based on the patient’s vascular anatomy and tumour angioarchitecture. This includes the use of coils as protective barriers rather than primary embolics; particle embolization to permeate fine capillary networks; consideration for liquid embolic agents in the presence of large caliber tumour vessels with associated arteriovenous shunting; and percutaneous intralesional embolization when endovascular access is insufficient to achieve the desired outcome. In many cases, a combination of these methods is needed, and close communication with the surgeon ensures the best outcome. Despite these advances, continued work is needed to determine how to optimize complete devascularization, and thus surgical benefit, while safely sparing critical neuroanatomical structures.

Deformation Energy of a Charged Drop. I. Qualitative Features

1956 ◽  
Vol 101 (2) ◽  
pp. 651-654 ◽  
Author(s):  
W. J. Swiatecki
Keyword(s):  
Deformation Energy ◽  
Charged Drop

The bursting of soap-bubbles in a uniform electric field

1925 ◽  
Vol 22 (5) ◽  
pp. 728-730 ◽  
Author(s):  
C. T. R. Wilson ◽  
G. I. Taylor
Keyword(s):  
Electric Field ◽  
Water Drop ◽  
The Other ◽  
Uniform Electric Field ◽  
Geometrical Shape ◽  
Soap Bubble ◽  
Charged Drop ◽  
Mathematical Discussion ◽  
Mathematical Expressions ◽  
The Stability

The stability of a charged raindrop has been discussed mathematically by Lord Rayleigh. The case of an uncharged drop in a uniform electric field is perhaps of more meteorological importance but a mathematical discussion of the conditions for stability turns out to be very much more difficult in this case, owing to the fact that the drop ceases to be spherical before it bursts. Moreover it does not seem possible to express its geometrical shape by means of any simple mathematical expressions. On the other hand, by using a soap bubble instead of a water drop it was found possible to carry out experiments under well-defined conditions in this case, whereas experiments with Rayleigh's charged drop would be difficult.

Electrokinetic flow in fine capillary channels

1970 ◽  
Vol 74 (9) ◽  
pp. 2006-2015 ◽  
Author(s):  
Douglas Hildreth
Keyword(s):  
Electrokinetic Flow ◽  
Fine Capillary
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