A5070470313- Non-Destructive Testing Techniques
- Methane Hydrates and Related Phenomena
- Spacecraft and Cryogenic Technologies
- Fatigue and fracture mechanics
- Hydrogen embrittlement and corrosion behaviors in metals
- Radiative Heat Transfer Studies
- Hydrocarbon exploration and reservoir analysis
- Welding Techniques and Residual Stresses
- Ultrasonics and Acoustic Wave Propagation
- Engineering Applied Research
- Engineering Structural Analysis Methods
- Textile materials and evaluations
- Mechanical stress and fatigue analysis
- Atmospheric and Environmental Gas Dynamics
- Nuclear and radioactivity studies
- Superconducting Materials and Applications
- Geophysical Methods and Applications
- Structural Integrity and Reliability Analysis
- Geology and Paleoclimatology Research
- Thermal properties of materials
- Carbon Dioxide Capture Technologies
- Material Properties and Failure Mechanisms
- Chemical and Physical Properties in Aqueous Solutions
- Thermal Radiation and Cooling Technologies
- Radiation Detection and Scintillator Technologies
Korea Atomic Energy Research Institute
2021
Dongguk University
1998-2020
Korea Institute of Nuclear Safety
2005-2011
University of British Columbia
2006
The University of Texas at Austin
1999
Purdue University West Lafayette
1995
Methane−propane clathrate hydrate crystal growth within an enclosure partially filled with liquid water was examined under different undercooling conditions both and without the presence of n-heptane. Water saturated guest gas rapidly undercooled maintained at constant temperature. The phase always started formation a film upper surface pool. visual observations using microscope revealed detailed features nucleation, migration, occurring In all experiments, initiated by interface between...
ALICE plans to replace its Inner Tracking System during the second long shut down of LHC in 2019 with a new 10 m2 tracker constructed entirely monolithic active pixel sensors. The TowerJazz 180 nm CMOS imaging Sensor process has been selected produce sensor as it offers deep pwell allowing full in-pixel circuitry and different starting materials. First full-scale prototypes have fabricated tested. Radiation tolerance also verified. In this paper development charge sensitive front end...
Vast size hydrate formation reactors with fast conversion rate are required for the economic implementation of seawater desalination utilizing gas technology. The commercial target production is order thousand tons potable water per day train. Various heat and mass transfer enhancement schemes including agitation, spraying, bubbling have been examined to maximize capacities in scaled up design reactors. present experimental study focused on acquiring basic knowledge needed variable volume...
A mathematical model for the radiative cooling of a semitransparent molten glass jet with temperature-dependent viscosity has been developed and is implemented numerically. The axial velocity diameter variations along length jet, bulk mean temperature distributions, centerline-to-surface distributions are determined different processing conditions. Comparisons also made between predictions, which based on spectral discrete ordinates model, predictions an opaque medium.
In this work, we applied a multilevel modeling technique to estimate the diametral creep in pressure tubes of Korean Canada Deuterium Uranium (CANDU) units. Data accumulated from in-service inspections were used develop model. To confirm strength models, 2-level model considering relationship between channels for CANDU unit was compared with existing linear models. The exhibited very robust prediction accuracy models different data pooling methods. A 3-level model, which considered...
Until now, the 40% of wall thickness criterion, which is generally used for plugging steam generator tubes, has been applied only to a single cracked geometry. In previous study by authors, total number 9 local failure prediction models were introduced estimate coalescence load two collinear through?wall cracks and, then, reaction force model and plastic zone contact selected as optimum ones. The objective this through-wall in tube using models. order investigate applicability models, series...
The 40 % of wall thickness criterion which has been used as a plugging rule is applicable only to single cracked steam generator tubes. In the previous studies performed by authors, several failure prediction models were introduced estimate plastic collapse pressures tubes containing collinear or parallel two adjacent axial through-wall cracks. objective this study examine and propose optimum ones for non-aligned cracks in order determine ones, series tests finite element analyses carried...
This paper is concerned with the vibration analysis of a rectangular plate hole. Even though there have been many methods developed for addressed problem, they suffer from computational time. In this paper, we new methodology called Independent Coordinate Coupling Method which can couple two independent coordinate systems entire domain and By matching deflection condition imposed on expressions, relationship between global axes local derived. formula then used calculation eigenvalue problem....
Knowledge of liquid composition distribution is needed for improved understanding energy and species transports occurring during mixture solidification. This paper describes an experimental diagnostic technique monitoring the solute concentration ammonium chloride aqueous solution undergoing a phase change without resort to sampling procedure. The method based on principles electrochemical cell can be extended any binary salt having anions. successive chloriding dechloriding working...
The 40% of wall criterion, which is generally used for the plugging steam generator tubes, applied only to a single crack. In previous study (Moon et al. (2002)), total number 9 failure models were introduced estimate local ligament between cracks and optimum coalescence model multiple collinear was determined among these models. It is, however, known that parallel axial are more frequently detected during an in-service inspection than cracks. objective this determine plastic collapse can be...