Taehoon Kim

Dec 27, 2024 | mdpi.com | Taehoon Kim

3.2. Segmentation StepThis section describes two main procedures in the instance segmentation step. First, it explains the preparation of training datasets for ribbons and dabs. Unlike other general objects, ribbons have the characteristics of a polygon with a hole, so the process of integrating them into a single ribbon is described. Second, it provides an explanation of the YOLOv8s-seg model, which was adopted for instance segmentation.

Oct 30, 2024 | nature.com | Taehoon Kim |Seung-Jae Shin |Jinwoo Cheon |Aron Walsh |Seung-Rok Kim

AbstractTwo-dimensional (2D) elemental metals, often overlooked owing to their lack of switching or dielectric properties, have the potential to exhibit unique properties unachievable by their bulk counterparts if their microstructure can be controlled. Here we propose an electrodeposition method that utilizes a confined 2D template to prepare elemental metal nanosheets with an aligned grain orientation, resulting in an exceptionally high in-plane electrical anisotropy of >103.

Aug 28, 2024 | nature.com | Seung-hyun Oh |Giyeok Lee |Taehoon Kim |Narguess Nemati |Kyuho Lee |Jeongmin Kim | +19 more

AbstractNovel two-dimensional semiconductor crystals can exhibit diverse physical properties beyond their inherent semiconducting attributes, making their pursuit paramount. Memristive properties, as exemplars of these attributes, are predominantly manifested in wide-bandgap materials. However, simultaneously harnessing semiconductor properties alongside memristive characteristics to produce memtransistors is challenging.

Jul 28, 2024 | nature.com | Kyuhwan Lee |Taehoon Kim

AbstractThe Kibble–Zurek mechanism is a theoretical framework that describes the formation and scaling of topological defects in symmetry-breaking phase transitions. It was originally conceptualized for superfluid helium. The theory predicts that the number of quantum vortices should scale as a power law with the rate at which the system passes through the lambda transition, but demonstrating this effect has been elusive in experiments using superfluid systems.

Mar 22, 2024 | imf.org | Vu Chau |Marina Martinez |Taehoon Kim |John Spray

Global Value Chain and Inflation Dynamics Author/Editor: Vu Chau ; Marina Conesa Martinez ; Taehoon Kim ; John A Spray Publication Date: March 22, 2024 Electronic Access: Free Download. Use the free Adobe Acrobat Reader to view this PDF file Disclaimer: IMF Working Papers describe research in progress by the author(s) and are published to elicit comments and to encourage debate.