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Gwangju, South Korea

GIST , formerly known as the Kwangju Institute of Science and Technology , is a leading research-oriented institute of Korea located in Gwangju, South Korea. Students in GIST can attend classes in the institute and participate in research. Wikipedia.

Oh K.-K.,Korea Electronics Technology Institute | Ahn H.-S.,Gwangju Institute of Science and Technology
IEEE Transactions on Automatic Control | Year: 2014

We propose a formation control strategy based on inter-agent displacements for single-integrator modeled agents in the plane. Since the orientations of the local reference frames of the agents are not aligned with each other due to the absence of a common sense of orientation, the proposed strategy consists of an orientation alignment law and a formation control law. Under the proposed strategy, if the interaction graph is uniformly connected and all the initial orientation angles belong to an interval with length less than $\pi$, the orientations are exponentially aligned and the formation exponentially converges to the desired formation. We also show that the proposed strategy can be utilized for network localization as a dual problem. © 1963-2012 IEEE. Source

Lee Y.,Gwangju Institute of Science and Technology | Geckeler K.E.,Korea Institute of Materials Science
Advanced Materials | Year: 2010

With the increasing interest in the biological applications of carbon nanotubes, their interactions in the biological interphase and their general cytotoxicity have become major issues. In spite of their salient properties, major hurdles still exist for their use in biological applications, due to their main characteristics, including their hydrophobic surfaces and tendency to aggregate, as well as their unknown interactions in the cellular interphase. In this Research News, these characteristics of carbon nanotubes, a model nanomaterial, are investigated. Thus, the cytotoxicity of carbon nanotubes, the infl uence of functionalization, as well as their interactions with different mammalian cell lines are studied. Moreover, suggestions for the improvement of their biocompatibility and the design of biocompatible carbon nanotube-based systems are provided. © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Source

Evans N.,University of Southampton | Kim K.-Y.,Gwangju Institute of Science and Technology
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics | Year: 2014

We study the D3/probe D5 system with two domain wall hypermultiplets. The conformal symmetry can be broken by a magnetic field, B (or running coupling), which promotes condensation of the fermions on each individual domain wall. Separation of the domain walls promotes condensation of the fermions between one wall and the other. We study the competition between these two effects showing a first order phase transition when the separation is ~ 0.56λ1/4B -1/2. We identify extremal brane configurations which exhibit both condensations simultaneously but they are not the preferred ground state. © 2013 The Authors. Published by Elsevier B.V. Source

Cho C.,Gwangju Institute of Science and Technology
Nature Reviews Urology | Year: 2012