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  1. Article

    Open Access

    Liquid crystal-powered Mie resonators for electrically tunable photorealistic color gradients and dark blacks

    Taking inspiration from beautiful colors in nature, structural colors produced from nanostructured metasurfaces have shown great promise as a platform for bright, highly saturated, and high-resolution colors. ...

    Trevon Badloe, Joohoon Kim, Inki Kim, Won-Sik Kim in Light: Science & Applications (2022)

  2. Article

    Open Access

    Author Correction: Fouling behavior of wavy-patterned pore-filling membranes in reverse electrodialysis under natural seawater and sewage effluents

    Jiyeon Choi, Won-Sik Kim, Han Ki Kim, Seung Cheol Yang, Ji-Hyung Han in npj Clean Water (2022)

  3. Article

    Open Access

    Fouling behavior of wavy-patterned pore-filling membranes in reverse electrodialysis under natural seawater and sewage effluents

    Reverse electrodialysis (RED) generates electricity from a mixture of seawater and river water. Herein, patterned membranes consisting of ultra-thin pore-filling membranes (16-μm thick) were used to determine ...

    Jiyeon Choi, Won-Sik Kim, Han Ki Kim, Seung Cheol Yang, Ji-Hyung Han in npj Clean Water (2022)

  4. Article

    Open Access

    Laser-based three-dimensional manufacturing technologies for rechargeable batteries

    Laser three-dimensional (3D) manufacturing technologies have gained substantial attention to fabricate 3D structured electrochemical rechargeable batteries. Laser 3D manufacturing techniques offer excellent 3D...

    Dan Moldovan, Jaeyoo Choi, Youngwoo Choo, Won-Sik Kim, Yoon Hwa in Nano Convergence (2021)

  5. No Access

    Chapter and Conference Paper

    Fouling Morphologies on Ion-Exchange Membranes in Reverse Electrodialysis with Effluent from Sewage Treatment Plant

    Fouling occurred on the ion-exchange membranes under practical condition, Reversible fouling occurred on the CEM, Irreversible fouling occurred on the AEM.

    Hanki Kim, Won-Sik Kim, Joo-Youn Nam in Frontiers in Water-Energy-Nexus—Nature-Bas… (2020)

  6. No Access

    Article

    Adsorption and desorption dynamics of CF4 on activated carbon beds: Validity of the linear driving force approximation for pressure-changing steps

    Adsorption and desorption dynamics of CF4 on an activated carbon bed were studied experimentally and theoretically, focusing on pressure-changing steps. The theoretical model used the ideal adsorbed solution (IAS...

    Dong-Woo Cho, Won Sik Kim, Heynsung Chang in Korean Journal of Chemical Engineering (2017)

  7. No Access

    Article

    TiO2@SnO2@TiO2 triple-shell nanotube anode for high-performance lithium-ion batteries

    TiO2@SnO2@TiO2 triple-shell nanotubes are fabricated using electrospun polyacrylonitrile (PAN) nanofiber template and plasma-enhanced atomic layer deposition (PEALD). The triple-shell nanotubes have a uniform dia...

    Jeong-Hoon Jean, Hoyoung Kwak, Won-Sik Kim in Journal of Solid State Electrochemistry (2017)

  8. No Access

    Article

    Meso-porous silicon-coated carbon nanotube as an anode for lithium-ion battery

    Meso-porous Si-coated carbon nanotube (CNT) composite powders were prepared by combining a sol‒gel method and the magnesiothermic reduction process. Meso-porous Si-coated CNT electrodes exhibit excellent cycle...

    Won-Sik Kim, Jonghyun Choi, Seong-Hyeon Hong in Nano Research (2016)

  9. Article

    Open Access

    A highly effective and versatile technology for the isolation of RNAs from grapevines and other woody perennials for use in virus diagnostics

    Isolation of pure RNA from woody perennials, especially fruit crops such as grapevine rich in complex secondary metabolites, has remained very challenging. Lack of effective RNA isolation technology has result...

    Huogen **ao, Won-Sik Kim, Baozhong Meng in Virology Journal (2015)

  10. No Access

    Article

    SnO2@Co3O4 hollow nano-spheres for a Li-ion battery anode with extraordinary performance

    SnO2@Co3O4 hollow nano-spheres have been prepared using the template-based sol-gel coating technique and their electrochemical performance as an anode for lithium-ion battery (LIB) was investigated. The size of s...

    Won-Sik Kim, Yoon Hwa, Hong-Chan Kim, Jong-Hyun Choi, Hun-Joon Sohn in Nano Research (2014)

  11. No Access

    Article

    Fabrication of Ga2O3/SnO2 core–shell nanowires and their ethanol gas sensing properties

    Ga2O3/SnO2 core–shell nanowires were synthesized by combining thermal evaporation and atomic layer deposition (ALD), and nanowire network sensors were fabricated by directly depositing them on the substrate with ...

    Yun-Guk Jang, Won-Sik Kim, Dai-Hong Kim, Seong-Hyeon Hong in Journal of Materials Research (2011)

  12. No Access

    Article

    Gas sensing properties of MoO3 nanoparticles synthesized by solvothermal method

    MoO3 nanoparticles were prepared by thermally oxidizing the MoO2 nano-crystallites synthesized by solvothermal reaction, and their gas sensing properties were investigated. Ethanol and water mixed solvents were u...

    Won-Sik Kim, Hong-Chan Kim, Seong-Hyeon Hong in Journal of Nanoparticle Research (2010)

  13. No Access

    Protocol

    Erwinia amylovora: Modern Methods for Detection and Differentiation

    Erwinia amylovora is the causative agent of fire blight, a very destructive disease of numerous members of the rosaceae. The primary route of infection for host species, including commercially grow...

    Antonet M. Svircev, Won-Sik Kim, Susan M. Lehman, Alan J. Castle in Plant Pathology (2009)

  14. No Access

    Article

    CO gas sensing properties in Pd-added ZnO sensors

    Unadded and 0.5 mol% Pd-added ZnO bulk and thin films were prepared by sintering and sputtering, respectively, and their CO gas sensing properties were investigated. The effects of Pd addition, sensing tempera...

    Won-Taek Moon, Youn-Ki Jun, Hyun-Su Kim, Won-Sik Kim in Journal of Electroceramics (2007)

  15. No Access

    Chapter and Conference Paper

    CC-GiST: Cache Conscious-Generalized Search Tree for Supporting Various Fast Intelligent Applications

    According to the advance of technologies, the speed gap between CPU and main memory is getting larger every year. Due to the speed gap, it was perceived important to make the most use of the cache residing bet...

    Won-Sik Kim, Woong-Kee Loh, Wook-Shin Han in Intelligence and Security Informatics (2006)

  16. Chapter and Conference Paper

    Performance Analysis of the Cache Conscious-Generalized Search Tree

    Recently, a main memory index structure called the cache conscious-generalized search tree (CC-GiST) was proposed. The CC-GiST is such a novel index structure that it can be used for implementing all the exist...

    Won-Sik Kim, Woong-Kee Loh, Wook-Shin Han in Computational Science – ICCS 2006 (2006)

  17. No Access

    Chapter and Conference Paper

    Design and Implementation of the KORI: Intelligent Teachable Agent and Its Application to Education

    Most of the intelligent tutoring system (ITS) is used to deliver knowledge and train skills based on the expert model. According to the theories of leaning, learning by teaching method is more efficient for en...

    Sung-il Kim, Sung-Hyun Yun, Mi-sun Yoon in Computational Science and Its Applications… (2005)

  18. No Access

    Chapter and Conference Paper

    Design and Implementation of the Individualized Intelligent Teachable Agent

    The traditional ITS have considered the learners as a knowledge receiver. The recent development of teachable agent make it possible to provide the learner with an active role as a knowledge constructor and to...

    Sung-il Kim, Sung-Hyun Yun, Dong-Seong Choi, Mi-sun Yoon in Advances in Natural Computation (2005)

  19. No Access

    Article

    Studies on the mechanism of the cardiovascular effect of intraventricular 5-hydroxytryptamine in rabbits

    An attempt was made to investigate the effect of intracerebroventricular 5-hydroxytryptamine (5-HT) on the cardiovascular system in urethane-anesthetized rabbits and to elucidate the mechanism of its action. 5...

    Dong-Yoon Lim, Young-Rae Kim, Won-Sik Kim, Kyoon-Hong Kim in Archives of Pharmacal Research (1990)