Institution
Korean Ocean Research and Development Institute
Facility•Busan, South Korea•
About: Korean Ocean Research and Development Institute is a facility organization based out in Busan, South Korea. It is known for research contribution in the topics: Sea surface temperature & Gene. The organization has 1770 authors who have published 3032 publications receiving 50142 citations.
Topics: Sea surface temperature, Gene, Sediment, Bay, Population
Papers published on a yearly basis
Papers
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TL;DR: In this article, a new mathematic model for heat conduction of nanofluid is developed based on the experimental findings and the maximum deviation is obtained to be 1.52% for SiO 2 nano-fluid.
60 citations
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TL;DR: It is proposed that an accelerated abiotic transformation of iodide to gaseous I2 in ice media provides a previously unrecognized formation pathway of active iodine species in the polar atmosphere.
Abstract: The chemistry of reactive halogens in the polar atmosphere plays important roles in ozone and mercury depletion events, oxidizing capacity, and dimethylsulfide oxidation to form cloud-condensation nuclei. Among halogen species, the sources and emission mechanisms of inorganic iodine compounds in the polar boundary layer remain unknown. Here, we demonstrate that the production of tri-iodide (I3–) via iodide oxidation, which is negligible in aqueous solution, is significantly accelerated in frozen solution, both in the presence and the absence of solar irradiation. Field experiments carried out in the Antarctic region (King George Island, 62°13′S, 58°47′W) also showed that the generation of tri-iodide via solar photo-oxidation was enhanced when iodide was added to various ice media. The emission of gaseous I2 from the irradiated frozen solution of iodide to the gas phase was detected by using cavity ring-down spectroscopy, which was observed both in the frozen state at 253 K and after thawing the ice at 298...
59 citations
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TL;DR: The hyperthermophilic archaeon, Thermococcus onnurineus, is the first example where a single microorganism can grow and produce H2 using CO, formate or starch as substrate.
Abstract: The hyperthermophilic archaeon, Thermococcus onnurineus, was grown in media supplemented with either CO, formate, or starch. H2 was produced with each substrate with respective maximum rates of 1.55, 3.83 and 2.66 mmol H2/l h. The yields (mol H2/mol substrate) were 0.98, 1 and 3.13, respectively. This microbe is the first example where a single microorganism can grow and produce H2 using CO, formate or starch as substrate.
59 citations
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TL;DR: The results suggest that the anti-inflammatory activity of SG results from its modulation of pro-inflammatory cytokines and mediators via the suppression of NF-κB activation and MAPK phosphorylation.
Abstract: A study on the anti-inflammatory activity of brown alga Sargassum siliquastrum led to the isolation of sargachromanol G (SG). In this study, the anti-inflammatory effect and the action mechanism of SG have been investigated in murine macrophage cell line RAW 264.7. SG dosedependently inhibited the production of inflammatory markers [nitric oxide (NO), inducible nitric oxide synthase (iNOS), prostaglandin E2 (PGE2), and cyclooxygenase-2 (COX-2)] and pro-inflammatory cytokines [tumor necrosis factor-α (TNF-α), interleukin (IL)-1β, and IL-6] induced by LPS treatment. To further elucidate the mechanism of this inhibitory effect of SG, we studied LPS-induced nuclear factor-κB (NF-κB) activation and mitogen-activated protein kinases (MAPKs) phosphorylation. SG inhibited the phosphorylation IκB-α and NF-κB (p65 and p50) and MAPK (ERK1/2, JNK, and p38) in a dose dependent manner. These results suggest that the anti-inflammatory activity of SG results from its modulation of pro-inflammatory cytokines and mediators via the suppression of NF-κB activation and MAPK phosphorylation.
59 citations
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TL;DR: In this paper, the influence of mesoscale variability on the internal wave response to changes in horizontal stratification gradients and vertical shear was analyzed in the South China Sea during the winter of 2010−2011.
Abstract: [1] During winter the Kuroshio tends to cross Luzon Strait, penetrating the northeastern South China Sea where it forms energetic mesoscale structures. Luzon Strait is also a site where westward-propagating large-amplitude internal waves are generated. We describe observations of these waves acquired in the deep basin of the South China Sea during the winter of 2010−2011, with the goal of assessing the influence of mesoscale variability on their properties. Combining tidal current simulations with an internal wave generation and evolution model, we obtain time series of deviations between our observations and the model simulations. These deviations are analyzed in terms of mesoscale variability based on the data-assimilated HYbrid Coordinate Ocean Model (HYCOM) simulations. We find that simplified models of nonlinear internal wave response to changes in horizontal stratification gradients and vertical shear provide at best weak simulations of amplitude modulation. In contrast to these results, deviations of internal wave arrival time, occurring up to 2 h early during Kuroshio inflows, are quite well simulated when derived from integration of the first internal mode phase speed along two-dimensional ray-traced paths using HYCOM simulations of velocity and density fields together with bathymetry. Refraction of the internal waves by Kuroshio intrusions can lead to substantial distortion of the paths, sufficient to provide a potential explanation for the apparent suppression of waves during previous winter measurements. Our results suggest that the internal wave field can be a sensitive indicator of mesoscale variability in Luzon Strait and the northeastern South China Sea.
59 citations
Authors
Showing all 1787 results
Name | H-index | Papers | Citations |
---|---|---|---|
Ian H. Campbell | 75 | 204 | 18767 |
Ravi Shankar | 66 | 672 | 19326 |
Claude F. Boutron | 57 | 176 | 11220 |
Carlo Barbante | 56 | 347 | 13942 |
Won Joon Shim | 56 | 211 | 10099 |
Jong-Seong Kug | 49 | 248 | 11337 |
Dong-Gyu Jo | 47 | 167 | 7599 |
Jong Seok Lee | 46 | 399 | 11661 |
Jong Seong Khim | 43 | 235 | 6783 |
Sang Hee Hong | 41 | 98 | 5804 |
Paolo Cescon | 40 | 131 | 4161 |
Jung-Hyun Lee | 38 | 215 | 5045 |
Narayanan Kannan | 38 | 140 | 6116 |
Nan Li | 38 | 183 | 5184 |
Sungmin Hong | 35 | 99 | 4130 |