Search Results - "Kim, Juhan"
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Size-Controllable and Low-Cost Fabrication of Graphene Quantum Dots Using Thermal Plasma Jet
Published in ACS nano (27-05-2014)“…We report a size-controllable and low-cost fabrication method of graphene quantum dots (GQDs) using a thermal plasma jet. A carbon atomic beam was generated by…”
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2
New Fitting Formula for Cosmic Nonlinear Density Distribution
Published in The Astrophysical journal (01-07-2017)“…We have measured the probability distribution function (PDF) of a cosmic matter density field from a suite of N-body simulations. We propose the generalized…”
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3
Cluster-counterpart Voids: Void Identification from Galaxy Density Field
Published in The Astrophysical journal (01-07-2023)“…Abstract We identify cosmic voids from galaxy density fields under the theory of void–cluster correspondence. We extend the previous novel void-identification…”
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Tomographic Alcock–Paczyński Test with Redshift-space Correlation Function: Evidence for the Dark Energy Equation-of-state Parameter w > −1
Published in The Astrophysical journal (01-08-2023)“…Abstract The apparent shape of galaxy clustering depends on the adopted cosmology used to convert observed redshift to comoving distance, the r ( z ) relation,…”
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Optimal Portfolio for LNG Importation in Korea Using a Two-Step Portfolio Model and a Fuzzy Analytic Hierarchy Process
Published in Energies (Basel) (01-11-2018)“…A new energy transition policy in Korea has increased the importance of liquefied natural gas (LNG) in the energy mix. The Asia-Pacific LNG market is…”
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Inhibitory cross-talk upon introduction of a new metabolic pathway into an existing metabolic network
Published in Proceedings of the National Academy of Sciences - PNAS (16-10-2012)“…Evolution or engineering of novel metabolic pathways can endow microbes with new abilities to degrade anthropogenic pollutants or synthesize valuable…”
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Merger-tree-based Galaxy Matching: A Comparative Study across Different Resolutions
Published in The Astrophysical journal (01-04-2024)“…Abstract We introduce a novel halo/galaxy matching technique between two cosmological simulations with different resolutions, which utilizes the positions and…”
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On the Effects of Local Environment on Active Galactic Nucleus (AGN) in the Horizon Run 5 Simulation
Published in The Astrophysical journal (01-08-2023)“…Abstract We use the Horizon Run 5 cosmological simulation to study the effect of galaxy intrinsic properties and the local environment on active galactic…”
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Cosmological Parameter Constraints from the SDSS Density and Momentum Power Spectra
Published in The Astrophysical journal (01-12-2023)“…Abstract We extract the galaxy density and momentum power spectra from a subset of early-type galaxies in the Sloan Digital Sky Survey (SDSS) DR7 main galaxy…”
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Cosmological Parameter Estimation from the Two-dimensional Genus Topology: Measuring the Shape of the Matter Power Spectrum
Published in The Astrophysical journal (01-06-2020)“…We present measurements of the two-dimensional genus of the SDSS-III Baryon Oscillation Spectroscopic Survey (BOSS) catalogs to constrain cosmological…”
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11
Cylinders out of a top hat: counts-in-cells for projected densities
Published in Monthly notices of the Royal Astronomical Society (21-06-2018)“…Large deviation statistics is implemented to predict the statistics of cosmic densities in cylinders applicable to photometric surveys. It yields few per cent…”
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Long-term use of clopidogrel versus ticagrelor or prasugrel in patients with acute myocardial infarction after percutaneous coronary intervention
Published in PloS one (23-02-2023)“…To compare the long-term clinical outcomes of dual antiplatelet therapy (DAPT) with clopidogrel and DAPT with ticagrelor or prasugrel in patients with acute…”
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13
Cosmological Parameter Estimation Using the Genus Amplitude-Application to Mock Galaxy Catalogs
Published in The Astrophysical journal (20-01-2018)“…We study the topology of the matter density field in two-dimensional slices and consider how we can use the amplitude A of the genus for cosmological parameter…”
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14
Identification of Galaxy Protoclusters Based on the Spherical Top-hat Collapse Theory
Published in The Astrophysical journal (01-01-2024)“…Abstract We propose a new method for finding galaxy protoclusters that is motivated by structure formation theory and also directly applicable to observations…”
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Spatial Distribution of Intracluster Light versus Dark Matter in Horizon Run 5
Published in The Astrophysical journal (01-04-2024)“…Abstract One intriguing approach for studying the dynamical evolution of galaxy clusters is to compare the spatial distributions among various components such…”
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Effects of the initial conditions on cosmological N-body simulations
Published in New astronomy (01-07-2014)“…•We study the effects of initial conditions on cosmological simulations.•1LPT underestimates the population of high-mass halos.•This effect is higher at higher…”
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Low-surface-brightness Galaxies are Missing in the Observed Stellar Mass Function
Published in The Astrophysical journal (01-07-2023)“…Abstract We investigate the impact of the surface-brightness (SB) limit on the galaxy stellar mass functions (GSMFs) using galaxy catalogs generated from the…”
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COSMOLOGICAL CONSTRAINTS FROM THE REDSHIFT DEPENDENCE OF THE ALCOCK-PACZYNSKI TEST: GALAXY DENSITY GRADIENT FIELD
Published in The Astrophysical journal (01-12-2014)“…We propose a method based on the redshift dependence of the Alcock-Paczynski (AP) test to measure the expansion history of the universe. It uses the isotropy…”
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HECTOMAP AND HORIZON RUN 4: DENSE STRUCTURES AND VOIDS IN THE REAL AND SIMULATED UNIVERSE
Published in The Astrophysical journal (20-02-2016)“…ABSTRACT HectoMAP is a dense redshift survey of red galaxies covering a 53 deg2 strip of the northern sky. HectoMAP is 97% complete for galaxies with r < 20.5,…”
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Testing Lyα Emitters and Lyman-break Galaxies as Tracers of Large-scale Structures at High Redshifts
Published in The Astrophysical journal (01-09-2024)“…Abstract We test whether Lyα emitters (LAEs) and Lyman-break galaxies (LBGs) can be good tracers of high- z large-scale structures, using the Horizon Run 5…”
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