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pro vyhledávání: '"Jin CJ"'
We propose an electro-hydrodynamics model to describe the dynamic evolution of a slender drop containing a dilute ionic surfactant on a naturally wettable surface, with a varying external electric field. This unified model reproduces fundamental micr
Externí odkaz:
http://arxiv.org/abs/2306.16602
Akademický článek
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With recent advances in micro- and nanofabrication, superhydrophilic and superhydrophobic surfaces have been developed. The statics and dynamics of fluids on these surfaces have been well characterized. However, few investigations have been made into
Externí odkaz:
http://arxiv.org/abs/1211.1602
Autor:
Tingyi “Leo” Liu, Chang-Jin “CJ” Kim
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
Abstract The difficulty of measuring very large contact angles (>150 degrees) has become more relevant with the increased popularity of super-repellent surfaces. Measurement is more difficult for dynamic contact angles, for which theoretical profiles
Externí odkaz:
https://doaj.org/article/4fe2eaec72cc4229b22ece9efc8f86c9
Autor:
Ning Yu, Zhaohui 'Ray' Li, Alexander McClelland, Francisco Jose del Campo Melchor, Sun Youb Lee, Jae Hwa Lee, Chang-Jin 'CJ' Kim
Publikováno v:
Journal of Fluid Mechanics. 962
This paper studies the sustainability of plastrons on superhydrophobic (SHPo) surfaces made of longitudinal micro-trenches covered by nano-grass with the main interest on hydrodynamic friction drag reduction in high-speed flows of open water, which r
Autor:
Liu, Tingyi "Leo", Kim, Chang-Jin "CJ"
Publikováno v:
Science, 2014 Nov . 346(6213), 1096-1100.
Externí odkaz:
http://www.jstor.org/stable/24745411
Publikováno v:
In International Journal of Heat and Mass Transfer February 2013 57(2):733-741
Publikováno v:
Langmuir, vol 37, iss 3
Langmuir : the ACS journal of surfaces and colloids, vol 37, iss 3
Langmuir : the ACS journal of surfaces and colloids, vol 37, iss 3
For a superhydrophobic (SHPo) surface under water, the dewetted or wetted states are easily distinguishable by the bright silvery plastron or lack of it, respectively. However, to detect an intermediate state between the two, where water partially in
Publikováno v:
2022 IEEE 35th International Conference on Micro Electro Mechanical Systems Conference (MEMS).
Autor:
Chang-Jin Cj Kim
Publikováno v:
2021 21st International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers).
As a subset of microfluidics, digital microfluidics handles fluids as small discrete entities (e.g., droplets) by actuating them individually. The choice of actuation mechanism to handle droplets has been electrowetting, especially in the form of ele