Results 241 to 250 of about 867,533 (280)

Droplet-based photoresist deposition

Applied Physics Letters, 2006
Photoresist droplets are ejected onto a wafer surface by an acoustic two-dimensional micromachined ejector array. The spread of single droplets on a silicon wafer surface at varying droplet speeds is studied. Series of photoresist droplets are printed periodically drop on demand on a silicon wafer surface and profiles of a single droplet and two ...
openaire   +1 more source

Droplet deposition in steam turbines

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2004
Abstract Research since the 1960s on the deposition of droplets from wet steam is reviewed, concentrating mainly on low-pressure turbines but also covering the limited work related to nuclear high-pressure turbines. The context is first set, outlining the motivation in terms of blade erosion and, to a lesser extent, wetness losses ...
openaire   +1 more source

Droplet deposition growth and coalescence

Reports on Progress in Physics, 1992
Processes involving the growth, motion and coalescence of fluid droplets have been studied for many years because of their scientific interest and practical importance. Interest in these processes has also been stimulated because they provide simple and often quite beautiful examples of pattern formation phenomena.
openaire   +1 more source

Controlling droplet deposition with polymer additives

Nature, 2000
Controlling the impact of drops onto solid surfaces is important for a wide variey of coating and deposition processes--for example, the treatment of plants with herbicides and pesticides requires precise targeting in order to meet stringent toxicological regulations.
, Bergeron, , Bonn, , Martin, , Vovelle
openaire   +2 more sources

Hydrophobic particle coating for enhanced droplet deposition

Journal of Colloid and Interface Science
Droplet deposition on hydrophobic surfaces is highly inefficient due to their low surface energy, leading to significant losses in applications such as pesticide delivery and spray cooling. Conventional approaches rely on surfactants and polymers, which pose environmental and health risks. We hypothesize that coating droplets with hydrophobic particles
Rutvik, Lathia, Premkumar, Iyer, Chandantaru Dey, Modak, Bheema Sankar, Reddy, Prosenjit, Sen   +4 more
openaire   +2 more sources

Solidification behaviour of droplets in spray deposition

Powder Metallurgy, 2005
In spray deposition, a stream of molten metal is atomised with an inert gas to form a spray of molten droplets; these are then accelerated towards a substrate where they impinge and consolidate. Near-net shape products can be manufactured by technologies involving solidification and droplet consolidation. In order to maximise the metallurgical benefits
S. N. Sahu, S. Harikishore, S. C. Koria
openaire   +1 more source

The deposition of airborne droplets on wire gauzes

Chemical Engineering Science, 1959
Abstract The droplet collection efficiency of wire gauzes exposed normal to an airstream has been measured and also computed using a rather crude theoretical model of the processes occurring. A spinning-top sprayer was used to produce a uniform cloud of dyed oil droplets in a wind tunnel; the cloud concentration was found by exposing a cascade ...
openaire   +1 more source

Picoliter droplets for spinless photoresist deposition

Review of Scientific Instruments, 2005
In this article, we present an acoustically actuated two-dimensional (2D) micromachined ejector array for a zero waste and spinless droplet-by-droplet photoresist deposition method. The theory of operation, the experimental results obtained with acoustic focused 2D micromachined microdroplet ejector array is demonstrated.
openaire   +1 more source

Droplet Deposition and Coalescence in Curved Pipes

2017
A novel and systematic experimental investigation was conducted on droplet deposition and coalescence in curved pipes. Various curved pipe bends, to be utilized as flow conditioning devices upstream of wet gas separators, were tested. Data were collected for about 200 experimental runs, varying v ratio up to 4.5, for two liquid loadings of 700 and 1400
H. Nguyen, R. Mohan, O. Shoham, G. Kouba
openaire   +1 more source

Deposition of droplets from turbulent stream

Wärme- und Stoffübertragung, 1982
A model of particle deposition from a turbulent stream is presented. It is based on the modified stopping distance concept which allows for the difference between particle and eddy diffusivities, recognizing that the particle has equal probability to move toward the wall or back into the turbulent core. The theory is tested against the data which cover
openaire   +1 more source