15 Result(s)
within
Sung Dae Kim
Science, Humanities and Social Sciences, multidisciplinary
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Article
Open AccessSpatiotemporal neural network with attention mechanism for El Niño forecasts
To learn spatiotemporal representations and anomaly predictions from geophysical data, we propose STANet, a spatiotemporal neural network with a trainable attention mechanism, and apply it to El Niño predictions ...
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Article
Open AccessStrain hardening recovery mediated by coherent precipitates in lightweight steel
We investigated the effect of κ-carbide precipitates on the strain hardening behavior of aged Fe–Mn-Al-C alloys by microstructure analysis. The κ-carbides-strengthened Fe–Mn-Al-C alloys exhibited a superior st...
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Article
Open AccessA new class of lightweight, stainless steels with ultra-high strength and large ductility
Steel is the global backbone material of industrialized societies, with more than 1.8 billion tons produced per year. However, steel-containing structures decay due to corrosion, destroying annually 3.4% (2.5 ...
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Article
Open AccessDirect observation of dislocation plasticity in high-Mn lightweight steel by in-situ TEM
To gain the fundamental understanding of deformation mechanisms in an aluminum-containing austenitic high-Mn steel (Fe-32Mn-8.9Al-0.78 C (wt.%)), in-situ straining transmission electron microscopy (TEM) analysis ...
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Article
Open AccessFirst Evidence for Mechanism of Inverse Ripening from In-situ TEM and Phase-Field Study of δ′ Precipitation in an Al-Li Alloy
In-situ TEM investigation of aging response in an Al–7.8 at.% Li was performed at 200 °C up to 13 hours. Semi-spherical δ′ precipitates growing up to an average radius of 7.5 nm were observed. The size and number...
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Article
Open AccessDownregulation of UHRF1 increases tumor malignancy by activating the CXCR4/AKT-JNK/IL-6/Snail signaling axis in hepatocellular carcinoma cells
UHRF1 (ubiquitin-like, with PHD and RING finger domains 1) plays a crucial role in DNA methylation, chromatin remodeling and gene expression and is aberrantly upregulated in various types of human cancers. How...
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Open AccessCorrection: Corrigendum: Bub1 is required for maintaining cancer stem cells in breast cancer cell lines
Scientific Reports 5: Article number: 15993; published online: 06 January 2016; updated: 11 November 2016
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Open AccessErratum: Phase transitions via selective elemental vacancy engineering in complex oxide thin films
Defect engineering has brought about a unique level of control for Si-based semiconductors, leading to the optimization of various opto-electronic properties and devices. With regard to perovskite transition m...
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Article
Open AccessPhase transitions via selective elemental vacancy engineering in complex oxide thin films
Defect engineering has brought about a unique level of control for Si-based semiconductors, leading to the optimization of various opto-electronic properties and devices. With regard to perovskite transition m...
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Article
Open AccessInsights into cationic ordering in Re-based double perovskite oxides
Cationic ordering in Sr2FeReO6 (SFRO) and Sr2CrReO6 (SCRO) is investigated using magnetic property measurement, atomic-scale imaging and first-principles calculations. We find that the nature of cationic ordering...
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Open AccessCorrection: Corrigendum: Bub1 is required for maintaining cancer stem cells in breast cancer cell lines
Breast cancer is a leading cause of death among women worldwide due to therapeutic resistance and cancer recurrence. Cancer stem cells are believed to be responsible for resistance and recurrence. Many efforts...
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Article
Open AccessBub1 is required for maintaining cancer stem cells in breast cancer cell lines
Breast cancer is a leading cause of death among women worldwide due to therapeutic resistance and cancer recurrence. Cancer stem cells are believed to be responsible for resistance and recurrence. Many efforts...
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Article
Open AccessReliable and cost effective design of intermetallic Ni2Si nanowires and direct characterization of its mechanical properties
We report that a single crystal Ni2Si nanowire (NW) of intermetallic compound can be reliably designed using simple three-step processes: casting a ternary Cu-Ni-Si alloy, nucleate and growth of Ni2Si NWs as embe...
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Article
Monolithic graphene oxide sheets with controllable composition
Graphene oxide potentially has multiple applications and is typically prepared by solution-based chemical means. To date, the synthesis of a monolithic form of graphene oxide that is crucial to the precision a...
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Near room-temperature synthesis of transfer-free graphene films
Large-area graphene films are best synthesized via chemical vapour and/or solid deposition methods at elevated temperatures (~1,000 °C) on polycrystalline metal surfaces and later transferred onto other substr...
