A5044198619- Methane Hydrates and Related Phenomena
- Geology and Paleoclimatology Research
- Hydrocarbon exploration and reservoir analysis
- Geological and Geophysical Studies
- Seismic Imaging and Inversion Techniques
- Geochemistry and Elemental Analysis
- Reservoir Engineering and Simulation Methods
- Advancements in Photolithography Techniques
- Paleontology and Stratigraphy of Fossils
- Geological and Geochemical Analysis
- Geomagnetism and Paleomagnetism Studies
- Geological formations and processes
- Clay minerals and soil interactions
- Semiconductor materials and devices
- Geochemistry and Geologic Mapping
- Integrated Circuits and Semiconductor Failure Analysis
- Electron and X-Ray Spectroscopy Techniques
- Ferroelectric and Piezoelectric Materials
- Metal Extraction and Bioleaching
- Iron oxide chemistry and applications
- Polar Research and Ecology
- Concrete and Cement Materials Research
- Radioactive element chemistry and processing
- Acoustic Wave Resonator Technologies
- Advanced Chemical Sensor Technologies
Nankai University
2025
Jilin University
2025
Pusan National University
2020-2024
Yonsei University Health System
2012-2024
International Ocean Discovery Program
2024
IMEC
2024
Ocean University of China
2024
Expedition Technology (United States)
2024
National Institute for Radiological Protection
2021
Korea Institute of Ocean Science and Technology
2019
Deep, hot, and more alive than we thought Marine sediments represent a massive microbial ecosystem, but still do not fully understand what factors shape limit life underneath the seafloor. Analyzing samples from subduction zone off coast of Japan, Heuer et al. found that life, in particular bacterial vegetative cells, decreases as depth temperature increases down to ∼600 meters below seafloor, corresponding temperatures ∼70°C. Below this limit, endospores are common—a remnant, potential...
Research Article| April 15, 2019 Naturally occurring, microbially induced smectite-to-illite reaction Jinwook Kim; Kim * 1Department of Earth System Sciences, Yonsei University, Seoul 03722, South Korea *E-mails: jinwook@yonsei.ac.kr; dongh@cugb.edu.cn Search for other works by this author on: GSW Google Scholar Hailiang Dong; Dong 2State Key Laboratory Biogeology and Environmental Geology, China University Geosciences, Beijing 100083, China3Department Geology Science, Miami Oxford, Ohio...
The generation of free radicals metal cationized nucleic acids by UVPD is found to be accompanied both transfers radical sites and coordination modes, which revealed IRMPD spectroscopy calculations.
Extreme climate warmth (hyperthermal) events occur throughout the geologic record. In particular, several transient are well documented for early Eocene with Paleocene-Eocene Thermal Maximum (PETM; ~56 Ma) standing as major star. Yet, earlier short-lived (104–105 years) warming events, correlated abrupt negative carbon isotope excursions (CIEs), also struck in Paleocene producing noticeable environmental disturbances (e.g., DAN-C2 event Danian, ~65.2 Ma and ELPE late Paleocene, ~59...
Sulfuric acid–ammonia clusters play important roles in atmospheric nucleation processes. However, experimental structural analysis of relative medium‐sized or large‐sized at the molecular level has always been lacking. Herein, tandem mass spectrometry and IR photondissociation (IRPD) spectroscopy were applied to mass‐selected cluster ions that have diameters 1.0‐1.2 nm. The differences their dissociation behaviors IRPD spectra cations anions are attributed characteristics, which further...
Abstract Variations in the geochemistry and mineralogical compositions of ferromanganese (Fe‐Mn) nodules are closely related to variations environmental parameters. Therefore, analysis Fe‐Mn can reconstruct paleo‐ocean environment. Here, three differently shaped were collected from open seamount 9‐1 western Pacific Magellan Seamount. Geochemical analyses conducted using micro X‐ray fluorescence (μ‐XRF) Synchrotron powder diffraction We found that shape was different; however, their...
X-ray computed tomography (XCT) can be used to identify lithologies and deformation structures within geological core, with the potential for identification processes applied automatically. However, because of drilling disturbance other artefacts, use large XCT-datasets in automated requires methods quality control that systematically. We propose a new systematic method XCT data applies numerical measures CT slices, from this obtains reflective core quality. Because are they quickly...