Search Results - "Chang-Hwan Choi"

Superhydrophobic drag reduction in laminar flows: a critical review by Lee, Choongyeop, Choi, Chang-Hwan, Kim, Chang-Jin

“…A gas in between micro- or nanostructures on a submerged superhydrophobic (SHPo) surface allows the liquid on the structures to flow with an effective slip. If…”
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Droplet Retention on Superhydrophobic Surfaces: A Critical Review by Jiang, Youhua, Choi, Chang‐Hwan

“…Wetting phenomena and superhydrophobic surfaces are ubiquitous in nature and have recently been explored widely in scientific and engineering applications. The…”
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From sticky to slippery droplets: dynamics of contact line depinning on superhydrophobic surfaces by Xu, Wei, Choi, Chang-Hwan

“…This study explores how surface morphology affects the dynamics of contact line depinning of an evaporating sessile droplet on micropillared superhydrophobic…”
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Superhydrophobic drag reduction in turbulent flows: a critical review by Park, Hyungmin, Choi, Chang-Hwan, Kim, Chang-Jin

“…Superhydrophobic (SHPo) surfaces have been investigated vigorously since around 2000 due in large part to their unique potential for hydrodynamic frictional…”
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Oil‐Impregnated Nanoporous Oxide Layer for Corrosion Protection with Self‐Healing by Lee, Junghoon, Shin, Sangwoo, Jiang, Youhua, Jeong, Chanyoung, Stone, Howard A., Choi, Chang‐Hwan

“…The major drawback of current passivation techniques for preventing corrosion is the lack of ability to withstand any external damages or local defects. In…”
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Single-Step Direct Fabrication of Pillar-on-Pore Hybrid Nanostructures in Anodizing Aluminum for Superior Superhydrophobic Efficiency by Jeong, Chanyoung, Choi, Chang-Hwan

“…Conventional electrochemical anodizing processes of metals such as aluminum typically produce planar and homogeneous nanopore structures. If hydrophobically…”
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Freestanding Photoresist Film: A Versatile Template for Three‐Dimensional Micro‐ and Nanofabrication by Liu, Yuyang, Du, Ke, Wathuthanthri, Ishan, Xu, Wei, Choi, Chang‐Hwan

“…Ultrathin freestanding films with well‐defined micro/nanostructures and robust mechanical properties are applied in many engineering applications including…”
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Air-Impregnated Nanoporous Anodic Aluminum Oxide Layers for Enhancing the Corrosion Resistance of Aluminum by Jeong, Chanyoung, Lee, Junghoon, Sheppard, Keith, Choi, Chang-Hwan

“…Nanoporous anodic aluminum oxide layers were fabricated on aluminum substrates with systematically varied pore diameters (20–80 nm) and oxide thicknesses…”
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Evaporation Kinetics of Sessile Water Droplets on Micropillared Superhydrophobic Surfaces by Xu, Wei, Leeladhar, Rajesh, Kang, Yong Tae, Choi, Chang-Hwan

“…Evaporation modes and kinetics of sessile droplets of water on micropillared superhydrophobic surfaces are experimentally investigated. The results show that a…”
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Seeking acceptance: how education shifts views on fecal microbiota transplants for ulcerative colitis in Korea by Jeongkuk Seo, Chang Hwan Choi

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Guiding light via slippery liquid-infused porous surfaces by Asawa, Kaustubh, Kumar, Santosh, Huang, Yuping, Choi, Chang-Hwan

“…Slippery liquid-infused porous surfaces (SLIPSs) have been explored for many applications, taking advantage of their highly non-wetting property. In this work,…”
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Superhydrophobic waveguide: Liquid-core air-cladding waveguide platform for optofluidics by Du, Ke, Wathuthanthri, Ishan, Ding, Junjun, Choi, Chang-Hwan

“…In this paper, we present an optofluidic waveguide platform consisting of liquid as a core material and air as cladding, enabled by using a superhydrophobic…”
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Odds-wise view: Whose ideas prevail in the global integrity campaigns against match-fixing? by Tak, Minhyeok, Choi, Chang-Hwan, Sam, Michael P

“…The global expansion of sports betting has resulted in the formation of (inter)national governing regimes aimed at sustaining revenue and regulating attendant…”
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Effects of contact angle hysteresis on ice adhesion and growth on superhydrophobic surfaces under dynamic flow conditions by Sarshar, Mohammad Amin, Swarctz, Christopher, Hunter, Scott, Simpson, John, Choi, Chang-Hwan

“…In this paper, the icephobic properties of superhydrophobic surfaces are investigated under dynamic flow conditions using a closed-loop low-temperature wind…”
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Simple Holographic Patterning for High-Aspect-Ratio Three-Dimensional Nanostructures with Large Coverage Area by Wathuthanthri, Ishan, Liu, Yuyang, Du, Ke, Xu, Wei, Choi, Chang-Hwan

“…Using the vertical standing wave phenomena commonly regarded as a deterrent in holographic lithography, multifaceted three‐dimensional (3D) nanostructures are…”
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Too much at stake to uphold sport integrity? High-performance athletes’ involvement in match-fixing by Tak, Minhyeok, Sam, Michael P., Choi, Chang-Hwan

“…Non-betting-related match-fixing constitutes an important integrity issue in contemporary sports. With varied forms ranging from passive tanking to the…”
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Control of the Nanopore Architecture of Anodic Alumina via Stepwise Anodization with Voltage Modulation and Pore Widening by Jeong, Chanyoung, Jung, Jeki, Sheppard, Keith, Choi, Chang-Hwan

“…Control of the morphology and hierarchy of the nanopore structures of anodic alumina is investigated by employing stepwise anodizing processes, alternating the…”
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Design of Test Platform of High-Payload Transporter Joint for a Tokamak by Wang, Yan, Zhou, Zibo, Bai, Xiaowei, Yao, Damao, Choi, Chang-Hwan

“…A general purpose remote-handling system with high-payload handing capability is necessary for Tokamak fusion reactors. Such a system helps maintain in-vessel…”
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Adequacy of setting standards for kick impact in the Taekwondo electronic scoring system: comparison of a reference group model based on empirical data by Choi, Chang-Hwan, Oh, Hyeri, Jeon, Minsoo

“…Background In Taekwondo competitions, the rule is that points are scored when the impact of the kick reaches a predetermined threshold of strength. This study…”
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Rotary Joint Design for High Payload Remote Handling System for a Tokamak Reactor by Bai, Xiaowei, Zhou, Zibo, Wang, Yan, Yao, Damao, Choi, Chang-Hwan, Zi, Pengfei

“…A general-purpose high payload in-vessel remote handling (RH) system is required for fusion reactors such as China fusion engineering test reactor (CFETR). One…”
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