Results 261 to 270 of about 2,672,653 (314)

Detachment of Particles from Surfaces: An AFM Study

Journal of Colloid and Interface Science, 2001
We have measured interactions between hydrophilic and hydrophobic surfaces in an aqueous medium at various pH and ionic strengths as well as in some organic solvents using atomic force microscopy and analyzed them in terms of particle adhesion and detachment from surfaces.
, Freitas, , Sharma
openaire   +2 more sources

Mechanistic Basis for Particle Detachment from Granular Media

Environmental Science & Technology, 2003
Colloids may become detached from surfaces in environmental systems as a result of chemical and physical conditions. Many researchers reporting on colloidal detachment in natural and model systems have stopped short of mechanistically and quantitatively describing their observations.
John A, Bergendahl, Domenico, Grasso
openaire   +2 more sources

The roles of power loss and momentum-pressure loss in causing particle-detachment in tokamak divertors: II. 2 Point Model analysis that includes recycle power-loss explicitly

Plasma Physics and Controlled Fusion, 2019
In the Part I companion paper, using a simple heuristic model it was demonstrated that, generically, volumetric loss of both pressure-momentum and power are required for particle detachment to occur. The volumetric power-loss fraction, f pwr − loss , was
P. Stangeby
semanticscholar   +1 more source

Detachable immobilization of liposomes on polymer gel particles

Colloids and Surfaces B: Biointerfaces, 2004
Immobilization of liposomes on hydrophobized Sephacryl gel and controlled detachment of the liposomes from the gel were examined. The gel was chemically modified and bore octyl, hexadecyl or cholesteryl moiety via disulfide linkage as anchors to liposomal bilayer membrane.
Md Abdul, Khaleque, Yukihisa, Okumura, Satoshi, Yabushita, Michiharu, Mitani   +3 more
openaire   +2 more sources

Particle Behavior in Deep‐Bed Filtration: Part 2—Particle Detachment

Journal AWWA, 1993
In laboratory‐scale filtration experiments conducted with settled water from a lime‐softening plant, breakthrough was discovered to be greatly influenced by particle detachment. Detachment was studied explicitly through a carefully designed experimental procedure that incorporated a sudden decrease in the influent particle concentration at the end of ...
Melissa C. Moran, Daniel C. Moran, Robert S. Cushing, Desmond F. Lawler   +3 more
openaire   +1 more source

A study of the influence of plasma–molecule interactions on particle balance during detachment

Nuclear Materials and Energy, 2020
In this work we provide experimental insights into the impact of plasma-molecule interactions on the target ion flux decrease during divertor detachment achieved through a core density ramp in the TCV tokamak. Our improved analysis of the hydrogen Balmer
Kevin Verhaegh, B. Lipschultz, J. Harrison, B. Duval, C. Bowman, A. Fil, D. Gahle, D. Moulton, O. Myatra, A. Perek, C. Theiler, M. Wensing   +11 more
semanticscholar   +1 more source

EFFECTS OF BORN REPULSION ON PARTICLE DETACHMENT†

Chemical Engineering Communications, 1987
The effect of short range Born repulsion on the total interaction energy of unlike spheres has been investigated, with superimposed London-van der Waals and electrostatic contributions. The latter was calculated using the recently derived model based on the two-dimensional Poisson-Boltzmann equation.
EYTAN BAROUCH, EGON MATIJEVIĆ, THOMAS H. WRIGHT   +2 more
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The role of divertor pumping in plasma detachment and particle exhaust in a closed divertor

Nuclear Fusion, 2020
The impact of pumping on divertor power dissipation and particle exhaust in a closed divertor with flat target configuration is examined using SOLPS modeling.
C. Sang, P. Stangeby, H.Y. Guo, Dezhen Wang   +3 more
semanticscholar   +1 more source

The detachment of particles from coalescing bubble pairs

Journal of Colloid and Interface Science, 2009
This paper is concerned with the detachment of particles from coalescing bubble pairs. Two bubbles were generated at adjacent capillaries and coated with hydrophobic glass particles of mean diameter 66 microm. The bubbles were then positioned next to each other until the thin liquid film between them ruptured. The particles that dropped from the bubble
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Detachment of Soil Particles in Simulated Rainfall

Soil Science Society of America Journal, 1968
Abstract Soil materials were fractionated into 20 separates ranging from 4,760µ to < 2µ in diameter. These separates were packed into splash‐cups and exposed to simulated rainfall intensities of 2 to 12 cm/hr. Raindrops were 5.1 mm in diameter and fell 11.33 m onto the surface of soil materials.
Andrew P. Mazurak, Peter N. Mosher
openaire   +1 more source