A5071785436- Aluminum Alloys Composites Properties
- Aluminum Alloy Microstructure Properties
- Magnetic properties of thin films
- Microstructure and Mechanical Properties of Steels
- High Temperature Alloys and Creep
- Solidification and crystal growth phenomena
- Microstructure and mechanical properties
- High-Temperature Coating Behaviors
- Additive Manufacturing Materials and Processes
- Advanced materials and composites
- Network Security and Intrusion Detection
- Metal Alloys Wear and Properties
- Metallurgical Processes and Thermodynamics
- Natural product bioactivities and synthesis
- Food Quality and Safety Studies
- Magnetic Properties and Applications
- Additive Manufacturing and 3D Printing Technologies
- Advanced Malware Detection Techniques
- Metallurgy and Material Forming
- Surface Treatment and Residual Stress
- Characterization and Applications of Magnetic Nanoparticles
- Nuclear Materials and Properties
- Advanced ceramic materials synthesis
- Intermetallics and Advanced Alloy Properties
- Metal and Thin Film Mechanics
Changwon National University
2015-2024
Seoul National University
2008-2024
Korea Institute of Energy Research
2021-2023
Institute for Basic Science
2023
Korea Energy Economics Institute
2023
Laboratoire Science & technologie du Lait & de l'œuf
2023
National University of Singapore
2019-2020
University of Minnesota, Duluth
2020
University of Glasgow
2018
Singapore Management University
2017
Coptidis Rhizoma and its isolated alkaloids are reported to possess a variety of activities, including neuroprotective antioxidant effects. Thus, the anti-Alzheimer effects six protoberberine (berberine, palmatine, jateorrhizine, epiberberine, coptisine, groenlandicine) one aporphine alkaloid (magnoflorine) from were evaluated via β-site amyloid precursor protein (APP) cleaving enzyme 1 (BACE1), acetylcholinesterase (AChE), butyrylcholinesterase (BChE) assays, along with peroxynitrite...
It is an ultimate goal for almost all the metallurgists to improve strength, ductility, formability and conductivity of metal together. However, are generally known as trade-offs increase in strength. because mechanism(s) strength subject be either harmful or irrelevant those related trade-offs. A variety metallurgical methods improving both have been exploited through morphological control microstructure. This article addresses microstructural aspects strengthening a together with its...
The magnetic microstructure of rolled-up nanomembranes is revealed both theoretically and experimentally. Two types are considered, one with a non-magnetic spacer layer the other without. Experimentally, by using different materials tuning dimensions nanomembranes, domain patterns consisting spiral-like azimuthally magnetized domains observed, which in qualitative agreement theoretical predictions. Inorganic stretchable,1 shapeable,2 transferrable to virtually any substrate.3, 4 These...
Abstract The precipitation strengthening of Cu alloys inevitably accompanies lowering their electric conductivity and ductility. We produced bulk arrayed with nanofibers stiff intermetallic compound through a mechanism using conventional casting heat treatment processes. then successfully elongated these arrays in the to 400% original length without breakage at room temperature rolling process. By inducing such an one-directional array from uniform distribution fine precipitates alloys,...
The dynamic behaviors of vortex-core magnetization reversals in soft magnetic nanodisks driven by oscillating fields applied perpendicularly to the disk plane were studied means micromagnetic numerical simulations. It was found that when field frequencies are tuned eigenfrequencies radial spin-wave modes, threshold amplitudes required for switching an order magnitude smaller than those static perpendicular fields. reversal mechanism and associated underlying physics completely different from...
A bstract We study AdS 5 black holes from a recently suggested giant graviton expansion formula for the index of U( N ) maximal super-Yang-Mills theory. compute large entropy at fixed charges and numbers n I by saddle point analysis, further maximize it in . This agrees with dual hole small limit. To get general sizes, one should note that various indices cancel because gauge theory does not suffer Hagedorn-like pathology an infinite baryonic tower. With assumption on mechanism this...
IN792, a Ni-based superalloy, exhibits excellent mechanical properties at medium and high temperatures (600~900oC). However, it is known to be very susceptible casting defects such as hot cracking tearing during casting. This study investigated the effect of alloy elements Hf, Zr, B on solidification behavior castability IN792. Four types ingots were manufactured by adjusting contents Hf (0~1.0wt%), Zr B, directional tests performed. As result solidification, content increased, there was...
We investigated the effect of different Cu additions (0.1 wt.% and 0.3 wt.%) on precipitation activation energy mechanical properties Al–Mg–Si alloys under prestraining levels (0%, 3%, 5%). Tensile tests were performed before after paint baking (PB). Differential scanning calorimetry (DSC) transmission electron microscopy (TEM) analyses conducted to explore clustering behavior. Our results show that was reduced by higher addition but increased with level. Before PB, significantly improved...