- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- Particle Accelerators and Free-Electron Lasers
- High-Energy Particle Collisions Research
- Neutrino Physics Research
- Particle Detector Development and Performance
- Robotic Mechanisms and Dynamics
- Scheduling and Optimization Algorithms
- Semiconductor materials and devices
- Quantum and electron transport phenomena
- Remote-Sensing Image Classification
- Semiconductor Quantum Structures and Devices
- Optimization and Packing Problems
- Advanced Image Fusion Techniques
- Advanced Manufacturing and Logistics Optimization
- Image Enhancement Techniques
- Robot Manipulation and Learning
- Robotic Path Planning Algorithms
- Dark Matter and Cosmic Phenomena
Seoul National University
2001-2025
National Institute of Fashion Technology
2025
Institute for Theoretical and Experimental Physics
2005
United States Naval Research Laboratory
1981
We have searched for neutrinoless tau lepton decays into three charged leptons using an 87.1 fb^{-1} data sample collected with the Belle detector at KEKB e^+e^- collider. Since number of signal candidate events is compatible that expected from background, we set 90% confidence level upper limits on branching fractions in range (1.9-3.5) x 10^{-7} various decay modes -> l where represents e or mu.
We have searched for the lepton-flavor-violating decay tau -> e gamma using a data sample of 86.7/fb collected with Belle detector at KEKB asymmetric e^+ e^- collider. No evidence signal is obtained, and we set an upper limit branching fraction Br(tau gamma) < 3.9 x 10^-7 90% C.L.
We consider the problem of assigning reels components to slots on feeder racks a surface mounting machine which is used populate printed circuit boards with mount technology. This reel assignment (RAP) one series optimization problems that should be addressed improve production rate. preprocess RAP facilitate application dynamic programming and then formulate it as an integer problem. solve by using heuristic algorithm based programming. implement computer program perform simulations. The...
Though intensity-hue-saturation (IHS) approaches for image fusion are very fast and easy to implement, they have the intrinsic problem of spectral distortion. To reduce colour distortion in IHS methods, a maximum posteriori estimator is proposed that minimises distance between estimated intensity panchromatic image, which preserves information sharpens reconstructed images. The simulation demonstrates method reconstructs clearer images yields good results, both subjectively quantitatively.
In redundancy optimization problems related to cooperating manipulators, constraints should be considered for physical limits of the manipulators. The have been imposed mostly in form linear inequality constraints, which lead polyhedric feasible regions. We propose quadratic (QICs) ellipsoidal regions solve problem faster and directly handle on quantities. investigate effect use QICs from points view size change region. order efficiently deal with QICs, we utilize dual quadratically...