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Article
Open AccessThe Diversity Patterns of Rare to Abundant Microbial Eukaryotes Across a Broad Range of Salinities in a Solar Saltern
Solar salterns are excellent artificial systems for examining species diversity and succession along salinity gradients. Here, the eukaryotic community in surface water of a Korean solar saltern (30 to 380 pra...
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Article
Passive Regeneration Characteristics of a DOC/Asymmetric-CDPF System for Heavy-Duty Diesel Engines
In this study, the properties of diesel particulate filter (DPF) structures were analyzed in terms of the particulate matter (PM) regeneration of the catalyzed DPF (cDPF) and the exhaust gas reduction efficien...
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Article
Open AccessInsights into genomic structure and evolutionary processes of coastal Suaeda species in East Asia using cpDNA, nDNA, and genome-wide SNPs
Species in the genus Suaeda have few diagnostic characters and substantial morphological plasticity. Hence, regional floras do not provide clear taxonomic information for Suaeda spp. in East Asia. In order to ass...
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Article
Open AccessComparative analyses of the V4 and V9 regions of 18S rDNA for the extant eukaryotic community using the Illumina platform
Illumina sequencing is a representative tool for understanding the massive diversity of microbial eukaryotes in natural ecosystems. Here, we investigated the eukaryotic community in a pond (salinity of 2–4) on...
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Article
Distinct phylogeographic structure of the halophyte Suaeda malacosperma (Chenopodiaceae/Amaranthaceae), endemic to Korea–Japan region, influenced by historical range shift dynamics
Wide-ranging changes to the coastline of East Asia during the glacial periods of the Quaternary might have significantly influenced the genetic structure of coastal plants. To verify its historical migration a...
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Article
Seismicity of the 2016 ML 5.8 Gyeongju earthquake and aftershocks in South Korea
Since the modern seismograph network by the Korea Meteorological Administration (KMA) had been operated from 1978, the largest earthquake (ML 5.8) occurred in Gyeongju, South Korea on 12 September 2016. ML 5.1 an...
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Article
Open AccessHCFC-123-induced toxic hepatitis and death at a Korean fire extinguisher manufacturing facility: a case series
Exposure to sustained high concentrations of HCFC-123 is known to be hepatotoxic. We report two simultaneous cases of toxic hepatitis related to exposure to 2,2-dichloro-1,1,1-trifluoroethane (HCFC-123), a com...
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Article
CFD analysis for the geometry effect of disc-type membrane module on separation performance
A disc-type Pd-Au membrane module was considered, and a computational fluid dynamics (CFD) model was developed to describe the actual flow dynamics and the distribution of H2 flux over the membrane. When the memb...
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Article
Open AccessMesoporous Silica Supported Pd-MnOx Catalysts with Excellent Catalytic Activity in Room-Temperature Formic Acid Decomposition
For the application of formic acid as a liquid organic hydrogen carrier, development of efficient catalysts for dehydrogenation of formic acid is a challenging topic, and most studies have so far focused on th...
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Article
Open AccessReducing-Agent-Free Instant Synthesis of Carbon-Supported Pd Catalysts in a Green Leidenfrost Droplet Reactor and Catalytic Activity in Formic Acid Dehydrogenation
The development of green synthesis methods for supported noble metal catalysts remains important challenges to improve their sustainability. Here we first synthesized carbon-supported Pd catalysts in a green L...
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Article
Open AccessWaste-Glycerol-Directed Synthesis of Mesoporous Silica and Carbon with Superior Performance in Room-Temperature Hydrogen Production from Formic Acid
The development of easier, cheaper and more ecofriendly synthetic methods for mesoporous materials remains a challenging topic to commercialize them and the transformation of waste glycerol, as a biodiesel byp...
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Article
Computational fluid dynamics modeling and analysis of Pd-based membrane module for CO2 capture from H2/CO2 binary gas mixture
A Pd-based membrane module for the capture of CO2 from a H2/CO2 binary gas mixture was considered, and computational fluid dynamics modeling was used to predict the module performance. Detailed models of momentum...
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Article
Accelerated premature stress-induced senescence of young annulus fibrosus cells of rats by high glucose-induced oxidative stress
Diabetes mellitus (DM) is thought to be an important aetiological factor in intervertebral disc degeneration. A glucose-mediated increase of oxidative stress is a major causative factor in development of disea...
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Article
Separation of N2/SF6 binary mixtures using polyethersulfone (PESf) hollow fiber membrane
PESf hollow fiber membrane was used to recover sulfur hexafluoride (SF6) from N2/SF6 binary mixture gas. To fabricate a hollow fiber membrane, a dry-wet phase inversion method was used. Fiber was post-treated by ...
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Article
Pd-Cu alloy membrane deposited on alumina modified porous nickel support (PNS) for hydrogen separation at high pressure
This study reports on the hydrogen permeation properties of Pd-Cu alloy membranes at high pressures. A 7 μm thick Pd-Cu alloy membrane was prepared on an alumina-modified porous nickel support (PNS) by our dev...
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Article
Effects of different ion compositions on growth of obligately halophilic protozoan Halocafeteria seosinensis
Substantial halophilic organisms have been found in 100–200‰ salinities. These ranges represent a highly specialized halophilic environment to which only a few halotolerant species have adapted. Recent studies...
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Article
Optimization of Induction Heating for Container-Less Melt Extraction from a Metallic Sheet
This work examines the induction heating of a metal sheet to be used for multiple instance melt extraction from the lower edge. The task formulation of heating the edge in first place while kee** the release...
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Article
Aluminium interfere with vitellogenesis in the estradiol-17β-administered immature rockfish,Sebastes schlegeli
Effect of aluminum (al) on the plasma vitellogenin (VTG), alkaline-labile phosphorus (ALPP), Calcium (Ca), glutamate pyruvate transaminase (GPT) and hepatosomatic index (HSI) were examined in the estradiol-17β (E
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Article
A catalytic membrane reactor for water-gas shift reaction
We conducted the WGS reaction on a catalytic membrane reactor consisting of a WGS catalyst bed, Pt/CeO2 and thin, defect-free, Pd-Cu alloy membranes. The presence of CO and other gases with H2 reduced the H2 perm...
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Article
Development of a hydrogen purifier with Pd-based composite membrane
A hydrogen purifier equipped with Pd-Cu-Ni/PNS membranes has been developed to purify low-grade hydrogen and supply it to processes requiring high-purity hydrogen. The purifier does not include any purge syste...
