Search Results - "Ko, Jeongwoo"

Quantification of wake interaction effects on multi-rotor configurations in forward flight by Ko, Jeongwoo, Lee, Soogab

“…This study aims to illustrate the correlations of performance and wake dynamics in multi-rotor configurations and explain the induced circulation (IC), the…”
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Prediction-based psychoacoustic analysis of multirotor noise under gusty wind conditions by Ko, Jeongwoo, Kim, Younghoon, Jeong, Jaeheon, Lee, Soogab

“…This study presents a comprehensive numerical framework for auralizing multirotor noise during complex maneuvers, incorporating rotor tonal and broadband noise…”
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Comparative analysis of fixed-pitch and variable-pitch control systems for multirotor drones: Acoustic characteristics and rotor phase control by Yu, Kukhwan, Ko, Jeongwoo, Jeong, Jaeheon, Lee, Soogab

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Stochastic analysis of a single-rotor to quantify the effect of RPS variation on noise of hovering multirotors by Kim, Dongwook, Ko, Jeongwoo, Saravanan, Vignesh, Lee, Soogab

“…Multirotor drone generally controls its attitude and position through the variation of the angular speed of each rotor, which makes the sound signature from it…”
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Integrated simulation model for prediction of acoustic environment of launch vehicle by Park, Seoryong, Yoon, Kiseop, Ko, Jeongwoo, Choung, HanAhChim, Jang, Seokjong, Lee, Soogab

“…During a lift-off of a launch vehicle, a large amount of acoustic wave is generated by jet plumes. Acoustic waves lead to pressure fluctuations on the surface…”
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Noise Sources and Spectral Characteristics of the Tip-Jet Driven Rotor by Ko, Jeongwoo, Kim, Jonghui, Saravanan, Vignesh, Lee, Soogab

“…The noise sources of the tip-jet driven rotor are mainly classified as rotor blade noise and jet noise. The rotor blade noise includes thickness noise, loading…”
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Conceptual Aerodynamic Design of Pintle Nozzle for Variable-Thrust Propulsion by Saravanan, Vignesh, Ko, Jeongwoo, Lee, Soogab, Murugan, Nijanthan, Kumar, V. R. Sanal

“…Comprehensive theoretical studies have been carried out for the geometry optimization of a pintle nozzle for variable-thrust propulsion. We designed the pintle…”
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Combining evidence with a probabilistic framework for answer ranking and answer merging in question answering by Ko, Jeongwoo, Si, Luo, Nyberg, Eric

“…Question answering (QA) aims at finding exact answers to a user’s question from a large collection of documents. Most QA systems combine information retrieval…”
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GoEmotions: A Dataset of Fine-Grained Emotions by Demszky, Dorottya, Movshovitz-Attias, Dana, Ko, Jeongwoo, Cowen, Alan, Nemade, Gaurav, Ravi, Sujith

“…Understanding emotion expressed in language has a wide range of applications, from building empathetic chatbots to detecting harmful online behavior…”
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