28 Result(s)
-
Article
Open AccessEvaluation of antioxidant activity and fermentation properties of potential probiotic strain Lactiplantibacillus plantarum HY7720 in plant-based materials
People on vegan diets are at risk of being deficient in varied nutrients such as vitamin B12 and certain amino acids. In this study, we investigated vitamin B12-producing lactic acid bacteria (LAB) as well as the...
-
Article
Open AccessEffects of storage temperature and egg washing on egg quality and physicochemical properties
This study aimed to determine the effects of storage temperature and washing on egg quality and physicochemical properties. A total of 200 eggs (100 washed and 100 unwashed eggs) were obtained from 30-week-old...
-
Article
Open AccessGiant ionospheric density hole near the 2022 Hunga-Tonga volcanic eruption: multi-point satellite observations
A giant ionospheric hole was simultaneously detected in the in situ measurements of FORMOSAT-7/COSMIC-2 (F7/C2), Ionospheric Connection Explorer (ICON), Swarm missions, and ground-based total electron content ...
-
Article
Kinematic analysis and fault-dependence of building-wall fracture patterns during moderate earthquakes
Two recent moderate earthquakes in South Korea, the 2016 MW 5.5 Gyeongju earthquake and 2017 MW 5.4 Pohang earthquake, caused damages to modern residential buildings. These events occurred with almost the same ma...
-
Article
Carbonate record of temporal change in oxygen fugacity and gaseous species in asteroid Ryugu
The Hayabusa2 spacecraft explored asteroid Ryugu and brought its surface materials to Earth. Ryugu samples resemble Ivuna-type (CI) chondrites—the most chemically primitive meteorites—and contain secondary phy...
-
Article
Open AccessComparisons of in situ ionospheric density using ion velocity meters onboard FORMOSAT-7/COSMIC-2 and ICON missions
We report the preliminary inter-satellite comparisons of the in situ ion density measurements by the ion velocity meter (IVM) onboard FORMOSAT-7/COSMIC-2 (F7/C2) and Ionospheric Connection Explorer (ICON) miss...
-
Article
Impact of anthropogenic inputs on Pb content of moss Sanionia uncinata (Hedw.) Loeske in King George Island, West Antarctica revealed by Pb isotopes
The accumulation of heavy metals in plant communities has been investigated in the maritime Antarctica but their sources are not clearly identified yet. Here we measured Pb isotope ratios in the mosses Sanionia u...
-
Article
Open AccessDensity Estimation of Nemopilema nomurai (Scyphozoa, Rhizostomeae) Using a Drone
Research to understand the distribution and density of jellyfish is actively being conducted using training ships, but this is hindered by the high cost of manpower and the limitations of the irradiation area....
-
Article
Oxidation Behavior of Pack-Cemented Refractory High-Entropy Alloy
In this study, Al pack cementation was conducted on a high-entropy alloy (HEA), and the oxidation behavior of the pack-cemented HEA was investigated. The alloy was fabricated via powder metallurgy (PM). Al pac...
-
Article
Preparation and characterization of granular FeS from its nanoparticulate precursor using a freeze and thaw method
Mackinawite (FeS), an effective reagent for treating inorganic and organic contaminants, is generally produced as nanoparticles. Since these nanoparticles tend to aggregate to decrease permeability in aquifers...
-
Article
Characteristics of bleaching around major structures in a reservoir-cap rock system, SE Utah, USA
Bleached rocks are commonly formed from CO2-saturated water leakage to the surface. This provides an opportunity to understand the controlling factors of fluid flow in the subsurface. This study examined the rela...
-
Article
Application of Combined W-Temper and Cold Forming Technology to High-Strength Aluminum Alloy Automotive Parts
In this study, a room temperature forming process for high-strength aluminum alloys was investigated. To overcome the low formability of the peak-aged 7075 aluminum alloy (7075-T6) at room temperature, the she...
-
Article
Investigation of the Microstructure of Laser-Arc Hybrid Welded Boron Steel
The microstructure of boron steel for automotive driving shaft manufacturing after laser-arc hybrid welding was investigated. Laser-arc hybrid welding technology was applied to 3-mm-thick plates of boron steel...
-
Article
Deformation history and characteristics of the Ilgwang Fault in Southeast Korea
The NNE-SSW trending Ilgwang Fault is one of the major structural features in Southeast Korea. It is a high angle, right-lateral strike-slip fault with a displacement of about 1.2 km. The basement around the f...
-
Article
Fabrication of Ta2O5 Dispersion-Strengthened Mo-Si-B Alloy by Powder Metallurgical Method
In this study, we investigate the effect of oxide dispersion strengthening on mechanical properties by dispersion of nano-sized Ta2O5 particles in Mo-Si-B alloy. A Mo-Si-B core-shell powder consisting of two inte...
-
Article
Hydraulic properties measurement of tight sandstone for CO2 geological storage
Permeability is one of the important rock properties in oil and gas exploration as essential input data of reservoir characterization and production simulation. As production of unconventional resources such a...
-
Article
Petrogenesis of dunites from Gibbs Island, South Shetland Islands, Antarctica
We determined mineral and Sr-Pb isotopic compositions in a dunite complex from Gibbs Island, South Shetland Islands, Antarctica, to understand its petrogenesis. Gibbs dunites consist mainly of refractory olivi...
-
Article
Open AccessToward generalized planetary stereo analysis scheme—Prototype implementation with multi-resolution Martian stereo imagery
Stereo analysis of orbital imagery is highly valuable for scientific research in planetary surface. Thus, the processing of planetary stereo imagery has been progressed with various approaches and resulted in ...
-
Article
Distal turbidite fan/lobe succession of The Late Paleozoic Taean Formation, Western Korea
The Late Paleozoic Taean Formation is similar in depositional environment and age to sedimentary successions around the collision belt between the North and South China blocks. The studies on those successions...
-
Article
Cosmogenic 10Be and OSL dating of fluvial strath terraces along the Osip-cheon River, Korea: tectonic implications
The Osip-cheon River flows along a linear valley that runs approximately parallel to the Osip-cheon Fault. The present study was undertaken to elucidate the tectono-geomorphic evolution of the Osip-cheon Basin...
