A5061907930- Oceanographic and Atmospheric Processes
- Ocean Waves and Remote Sensing
- Tropical and Extratropical Cyclones Research
- Fire effects on ecosystems
- Advanced Sensor and Energy Harvesting Materials
- Underwater Acoustics Research
- Marine and coastal ecosystems
- Geophysics and Gravity Measurements
- Diverse Approaches in Healthcare and Education Studies
- Corporate Insolvency and Governance
- Marine and fisheries research
- Forest ecology and management
- Conducting polymers and applications
- Additive Manufacturing and 3D Printing Technologies
- Structural Behavior of Reinforced Concrete
- Coastal and Marine Dynamics
- Structural Load-Bearing Analysis
- Climate variability and models
- Nanomaterials and Printing Technologies
- Remote Sensing and LiDAR Applications
- Engineering Applied Research
- Fire dynamics and safety research
- Marine and Coastal Research
- Legal Studies and Reforms
- Ecology and Conservation Studies
Konkuk University Medical Center
2025
Korea Advanced Institute of Science and Technology
2014-2024
Korea University
2023
Laboratoire Traitement et Communication de l’Information
2022-2023
Télécom Paris
2022-2023
Korea University of Technology and Education
2022
Korea Polytechnic University
2021
University of Cincinnati
2021
Korea Forest Service
2020
Pukyong National University
2013-2017
Abstract Inorganic CsPbI 2 Br perovskite has a substantial potential for triple‐junction tandem solar cells as top subcell, however it exhibits relative instability in the air compared with organic‐inorganic perovskites well significantly lower efficiency than theoretical limit. To further enhance air‐stability and of Br‐based (PSCs), is vitally crucial to improve crystallinity passivate defects within films that accelerate phase transformation photo‐inactive air. Here, reported...
This study examines the impact of consumers' use food labels on selected nutrient intakes Americans. Endogenous switching regression techniques are employed to control for heterogeneity in label decision. When users and expected absence compared, decreases individuals' average daily calories from total fat saturated fat, cholesterol, sodium by 6.90%, 2.10%, 67.60 milligrams, 29.58 respectively. In addition, consumer nutrition increases fiber intake 7.51 grams.
signals with phase speeds of O(10) and O(100 to 300) km day −1 time scales 2 3 weeks. The slow speed are only observed in southern California. It is hypothesized that they scattered reflected by shoreline curvature bathymetry change do not penetrate north Point Conception. seasonal transition alongshore surfacecirculationforcedbyupwelling‐favorablewindsandtheirrelaxationiscapturedinfine detail.Submesoscaleeddies,identifiedusingflowgeometry,haveRossbynumbersof0.1to3, diameters the range 10 60...
Physical transport dynamics occurring at the ocean mesoscale (∼20 km – 200 km) largely determine environment in which biogeochemical processes occur. As a result, understanding and modeling is crucial for determining physical modulations of marine ecosystem. This review synthesizes current knowledge eddies their impacts on ecosystem across most North Pacific its marginal Seas. The domain north 20°N divided four regions, each region known, unknowns known-unknowns are summarized with focus...
An optimal interpolation (OI) method to compute surface vector current fields from radial velocity measurements derived high‐frequency (HF) radars is presented. The assumes a smooth spatial covariance relationship between neighboring currents, in contrast the more commonly used un‐weighted least‐squares fitting (UWLS) method, which constant within defined search radius. This OI can directly any quantities linearly related velocities, such as currents and dynamic (divergence vorticity) well...
The ichthyotoxic Cochlodinium polykrikoides red tides have caused great economic losses in the aquaculture industry waters of Korea and other countries. Predicting outbreak C. 1–2 weeks advance is a critical step minimizing losses. In South Sea Korea, large tide patches often been recorded offshore transported to nearshore waters. To explore processes tides, temporal variations 3-dimensional (3-D) distributions organisms environmental parameters were investigated by analyzing 4,432 water...
Feature Issue on Passive Optical Network Architectures and TechnologiesWe propose demonstrate that the power budget scalability of wavelength-division-multiplexed passive optical network (WDM PON) implemented by using reflective semiconductor amplifiers (RSOAs) can be significantly improved modulating downstream signals in Manchester format instead conventional non-return-to-zero format. As an example, we experimentally show maximum transmission distance RSOA-based WDM PON increased a factor...
Abstract Effects of atmospheric forcing on coastal sea surface height near Port San Luis, central California, are investigated using a regional state estimate and its adjoint. The physical pathways for the propagation nonlocal [O(100 km)] wind stress effects identified through adjoint sensitivity analyses, with cost function that is localized in space so shows details sensitivities. Transfer functions between SSH response calculated compared to previous work. It found (i) local alongshore...
Abstract With the development of technology, wireless and IoT devices are increasingly used from daily life to industry, placing demands on rapid efficient manufacturing processes. This study demonstrates fabrication an device using a roll-to-roll printing process, which could shorten time reduce cost mass production. Here, fabricated is designed acquire data through sensor, process data, communicate with end-user via Bluetooth communication. For fabrication, four-layer circuit platform...
Surface currents measured by high‐frequency radars are objectively mapped using covariance matrices computed from hourly surface current vectors spanning two years. Since retrievals of radial velocities inherently gappy in space and time, the irregular density data leads to negative eigenvalues sample matrix. The number magnitude depend on degree continuity used matrix computation. In a region 90% coverage, small enough be removed adding noise term diagonal mapping is extended regions poorer...
[1] High-resolution (km in space and hourly time) surface currents observed by an array of high-frequency radars off Oregon are analyzed to quantify the decorrelation time length scales their near-inertial motions. The dominantly clockwise with amplitudes 9–12 cm s−1. However, they appear asymmetric elliptical as a result counterclockwise inertial motions magnitudes range 2–5 computed from decay slope peak spatial coherence frequency band, respectively. Decorrelation increase 2 days...
[1] Coastal altimeter waveforms may differ from the ones in open ocean, either rapid changes sea state or presence of land within satellite footprint. The optimal retracking method for an individual track turn out to be a combination several retrackers and depend on state. coastal high-frequency radar (HFR) ocean surface currents, hourly interpolated with resolution up 2 km offshore range 150 km, are evaluated validate height (SSH) measurements. A derive HFR SSH mapped, varying spatial-scale...
Abstract This study presents a hybrid fabrication process for LED matrix on flexible multilayer printed circuit boards (PCBs). To prepare the PCB, roll-to-roll screen printing was developed to create core board by both sides of substrate. From lamination and etching processes are then used form four layers in total. By using proposed method, we successfully implemented passive display. approach could be other applications that require circuits.
The UN Ocean Decade calls for transformative ocean science solutions to support sustainable development and strengthen the connection between people ocean, recognizing that literacy is fundamental advance sustainability. Recent advancements in technology, observational capabilities, international frameworks, evolving concepts such as scientific excellence, combined with new initiatives like digital twins of present significant opportunities this transformation. These efforts highlight...
Abstract Analysis of coastal surface currents measured off the coast San Diego for two years suggests an anisotropic and asymmetric response to wind, probably as a result bottom/coastline boundary effects, including pressure gradients. In linear regression, statistically estimated explains approximately 20% more current variance than isotropic wind–ocean model. After steady wind forcing three days, veers 42° ± 2° right regardless direction, whereas analysis that upcoast (onshore) stress...
Abstract Submesoscale kinetic energy (KE) spectra and fluxes at the length scales ranging from 2 to 25 km are estimated hourly O (1) km‐scale coastal surface current maps observed shore‐based high‐frequency radars off southern San Diego. The one‐dimensional wave number‐domain KE of currents have decay slopes between a number ( k ) 0.5 −1 . exhibit anisotropy associated with anisotropic circulation, which is constrained by shoreline bottom bathymetry. Moreover, weak seasonality related...