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GRACE and GRACE Follow-On Gravity Observations of Intermediate-Depth Earthquakes Contrasted With Those of Shallow Events

Han, Shin-Chan (author), Sauber, Jeanne (author), Broerse, D.B.T. (author), Pollitz, Fred (author), Okal, Emile (author), Jeon, Taehwan (author), Seo, Ki Weon (author), Stanaway, Richard (author)

Earthquakes involve mass redistribution within the solid Earth and the ocean, and as a result, perturb the Earth's gravitational field. For most of the shallow (<60 km) earthquakes with M_w > 8.0, the GRACE satellite gravity measurements suggest considerable volumetric disturbance of rocks. At a spatial scale of hundreds of km...

journal article 2024

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Triplet–triplet annihilation-based photon-upconversion to broaden the wavelength spectrum for photobiocatalysis

Hwang, Se Yeun (author), Song, Dayoon (author), Seo, Eun Ji (author), Hollmann, F. (author), You, Youngmin (author), Park, Jin Byung (author)

Photobiocatalysis is a growing field of biocatalysis. Especially light-driven enzyme catalysis has contributed significantly to expanding the scope of synthetic organic chemistry. However, photoenzymes usually utilise a rather narrow wavelength range of visible (sun)light. Triplet–triplet annihilation-based upconversion (TTA-UC) of long...

journal article 2022

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Classifiable Limiting Mass Change Detection in a Graphene Resonator Using Applied Machine Learning

Seo, Miri (author), Yang, Eunseo (author), Shin, D. (author), Je, Yugyeong (author), Joo, C. (author), Lee, Kookjin (author), Lee, Sang Wook (author)

Nanomechanical resonator devices are widely used as ultrasensitive mass detectors for fundamental studies and practical applications. The resonance frequency of the resonators shifts when a mass is loaded, which is used to estimate the mass. However, the shift signal is often blurred by the thermal noise, which interferes with accurate mass...

journal article 2022

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Synthesis of a hybrid nanostructure of ZnO-decorated MoS₂ by atomic layer deposition

Oh, Il-Kwon (author), Kin, Woo-Hee (author), Zeng, Li (author), Singh, Joseph (author), Bae, D. (author), Mackus, Adriaan J.M. (author), Song, Jeong-Gyu (author), Seo, Seunggi (author), Song, Bonggeun (author)

We introduce the synthesis of hybrid nanostructures comprised of ZnOnanocrystals (NCs) decorating nanosheets and nanowires (NWs) of MoS2prepared byatomic layer deposition (ALD). The concentration, size, and surface-to-volume ratio ofthe ZnO NCs can be systematically engineered by controlling both the number of ZnOALD cycles and the properties of...

journal article 2020

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Addressing Ambiguities in Constrained Sensitivity Analysis for Reactor Physics Problems

Seo, Jeongwon (author), Abdel-Khalik, Hany (author), Perko, Z. (author)

This paper presents an algorithm for completing sensitivity analysis that respects linear constraints placed on the associated model’s input parameters. Any sensitivity analysis (linear or nonlinear, local or global) focuses on measuring the impact of input parameter variations on model responses of interest, which may require the analyst to...

journal article 2020

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Constrained sensitivity analysis for reactor physics problems

Seo, Jeongwon (author), Abdel-Khalik, Hany (author), Perko, Z. (author)

This summary introduces an algorithm for completing sensitivity analysis that respects linear constraints placed on the associated model’s input parameters. With constraints<br/>present, the degrees of freedom of input parameters are reduced, and any changes, e.g., parameter perturbations, must respect these constraints. This summary motivates...

journal article 2020

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Probing ISM Structure in Trumpler 14 and Carina i Using the Stratospheric Terahertz Observatory 2

Seo, Young Min (author), Goldsmith, Paul F. (author), Walker, Christopher K. (author), Hollenbach, David J. (author), Wolfire, Mark G. (author), Kavak, Umit (author), Van Der Tak, Floris F.S. (author), Shipman, Russ (author), Gao, J.R. (author)

We present observations of the Trumpler 14/Carina I region carried out using the Stratospheric Terahertz Observatory 2. The Trumpler 14/Carina I region is in the western part of the Carina Nebula Complex (CNC), which is one of the most extreme star-forming regions in the Milky Way. We observed Trumpler 14/Carina I in the 158 μm transition of ...

journal article 2019

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Study on added resistance of a tanker in head waves at different drafts

Park, Dong-Min. (author), Kim, Yonghwan (author), Seo, Min-Guk (author), Lee, Jaehoon (author)

journal article 2016

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Reduction of propeller cavitation induced hull exciting pressure by a reflected wave from air-bubble layer

Lee, Jeung-Hoon (author), Park, Hyoung-Gil (author), Kim, Jin-Hak (author), Lee, Kyung-Jun (author), Seo, Jong-Soo (author)

journal article 2014

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Numerical analysis of added resistance on ships in short waves

Seo, Min-Guk (author), Yang, Kyung-Kyu (author), Park, Dong-Min (author), Kim, Yonghwan (author)

journal article 2014

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An experimental investigation into the hydrodynamic drag reduction of a flat plate using air-fed cavities

Slyozkin, A. (author), Atlar, M. (author), Sampson, R. (author), Seo, K.-C. (author)

journal article 2014

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A stereo PIV measurement of a model ship wake in a towing tank with uncertainty assessment

Seo, J.H. (author), Seol, D.M. (author), Lim, T.G. (author), Park, S.T. (author), Han, B.W. (author), Rhee, S.H. (author)

Detailed information of the flow around a ship is essential for designing the hull because it is related to the propeller performance, maneuverability, and vibration. Thus, lots of experimental and computational researches have been executed to measure or analyze the stern flow of vessels. In this paper, the newly installed underwater SPIV...

conference paper 2013

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Evaporation-induced flows in confined droplets of diluted aqueous NaCl solution

Choi, Y.S. (author), Seo, K.W. (author), Lee, S.J. (author), Kim, S.H. (author), Yun, J.H. (author)

The flows in a naturally evaporating liquid droplet confined by two flat plates were investigated experimentally. A diluted sodium-chloride (NaCl) aqueous solution was used to form the confined droplets. The evaporation of water at the free surface of the droplet built up a concentration gradient inside the solution, which induced a natural...

conference paper 2013

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Experimental and numerical investigations on the flow field inside pre-and post-surgery models of posterosuperior septectomy

Heo, G.E. (author), Seo, A. (author), Kim, R.E. (author), Kim, S.W. (author), Kim, S.K. (author)

Three physiological functions of nasal breathing (air-conditioning, filtering and smelling) are closely related with airflow characteristics in the human nasal airway. Since fluid mechanical properties are heavily affected by the geometry of flow passage, the changes in anatomical shape of nasal cavity by disorders or surgical treatments alter...

conference paper 2013

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Aerodynamic characteristics around the stalling angle of the discus using a PIV

Seo, K. (author)

This paper describes the hysteresis in the aerodynamic properties of a discus near to its stalling angle. Wind tunnel tests were carried out with a full-size woman’s discus. The experimental aerodynamic data D, L and M were obtained from wind tunnel tests as functions of the angle of attack. It was found that the drag, lift and pitching moment...

conference paper 2013

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RANS simulation of cavitation and hull pressure fluctuation for marine propeller operating behind-hull condition

Paik, Kwang-Jun (author), Park, Hyung-Gil (author), Seo, Jongsoo (author)

journal article 2013

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Hydrodynamic development of inclined keel hull-propulsion

Seo, K.C. (author), Atlar, M. (author), Wang, D. (author)

journal article 2013

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Anti-slamming bulbous bow and tunnel stern applications on a novel deep-V catamaran for improved performance

Atlar, M. (author), Seo, K. (author), Sampson, R. (author), Danisman, D.B. (author)

journal article 2013

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Advancing data assimilation in operational hydrologic forecasting: Progresses, challenges, and emerging opportunities

Liu, Y. (author), Weerts, A.H. (author), Clark, M. (author), Hendricks Franssen, H.J. (author), Kumar, S. (author), Moradkhani, H. (author), Seo, D.J. (author), Schwanenberg, D. (author), Smith, P. (author), Van Dijk, A.I.J.M. (author), Van Velzen, N. (author), He, M. (author), Lee, H. (author), Noh, S.J. (author), Rakovec, O. (author), Restrepo, P. (author)

Data assimilation (DA) holds considerable potential for improving hydrologic predictions as demonstrated in numerous research studies. However, advances in hydrologic DA research have not been adequately or timely implemented in operational forecast systems to improve the skill of forecasts for better informed real-world decision making. This is...

journal article 2012

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Hydrodynamic development of inclined keel hull resistance

Seo, K.C. (author)

journal article 2012