Wonseok Yang
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View article: Low-Frequency Impedance Modulation Via Grid-Based Helmholtz Resonator Cavities
Low-Frequency Impedance Modulation Via Grid-Based Helmholtz Resonator Cavities Open
View article: Selective Conversion of Co2 to Co Using Blue Tio2 with an R-Go Shell and Quantitative Measurement of Excited Electrons with Four-Wave Mixing Microspectroscopy
Selective Conversion of Co2 to Co Using Blue Tio2 with an R-Go Shell and Quantitative Measurement of Excited Electrons with Four-Wave Mixing Microspectroscopy Open
View article: Flexible Covariance Matrix Decomposition Method for Data Augmentation and Its Application to Brainwave Signals
Flexible Covariance Matrix Decomposition Method for Data Augmentation and Its Application to Brainwave Signals Open
The acquisition of a large-volume brainwave database is challenging because of the stressful experiments that are required; however, data synthesis techniques can be used to address this limitation. Covariance matrix decomposition (CMD), a…
View article: Feature Optimization for Gait Phase Estimation with a Genetic Algorithm and Bayesian Optimization
Feature Optimization for Gait Phase Estimation with a Genetic Algorithm and Bayesian Optimization Open
For gait phase estimation, time-series data of lower-limb motion can be segmented according to time windows. Time-domain features can then be calculated from the signal enclosed in a time window. A set of time-domain features is used for g…
View article: Prediction of Flow Velocity from the Flexural Vibration of a Fluid-Conveying Pipe Using the Transfer Function Method
Prediction of Flow Velocity from the Flexural Vibration of a Fluid-Conveying Pipe Using the Transfer Function Method Open
This study presents a method to predict the flow velocity in a fluid-conveying pipe using vibration signals from the pipe surface. The flexural vibration of a fluid pipe is investigated through wave propagation. The wavenumbers and mode sh…
View article: Flexural Vibration Analysis of Nuclear Fuel Rod Bundles Interacting with Surrounding Fluid Subjected to Pressure Wave
Flexural Vibration Analysis of Nuclear Fuel Rod Bundles Interacting with Surrounding Fluid Subjected to Pressure Wave Open
The structural behavior of the nuclear rod bundles that consisted of cylindrical beams was predicted using the spectral element method (SEM) while considering the interaction with the surrounding fluid. Viscous fluid behavior was utilized …
View article: Brainwave Classification Using Covariance-Based Data Augmentation
Brainwave Classification Using Covariance-Based Data Augmentation Open
A brain-machine interface (BMI) is a technology that controls machines via brainwaves. In BMI, the performance of brainwave analysis is very important for achieving machine control that reflects the user's intention. One of the main obstac…
View article: Analysis of the Upper-Air Temperature Condition for Weapon System Operating in the Korean Peninsula
Analysis of the Upper-Air Temperature Condition for Weapon System Operating in the Korean Peninsula Open
View article: F8-1 A Study on Flashing Light of Personal Mobility
F8-1 A Study on Flashing Light of Personal Mobility Open
The Personal mobility without power such as bicycle and kick board is used by many people because of its ease. Bicycles are an important means of transportation that accounts for 13% of Japan's share of transportation, but it can not be sa…
View article: I8-1 A Study on Flashing Light of Personal Mobility
I8-1 A Study on Flashing Light of Personal Mobility Open
The Personal mobility without power such as bicycle and kick board is used by many people because of its ease.Bicycles are an important means of transportation that accounts for 13% of Japan's share of transportation, but it can not be sai…
View article: Flexural wave cloaking via embedded cylinders with systematically varying thicknesses
Flexural wave cloaking via embedded cylinders with systematically varying thicknesses Open
Simulations of flexural wave cloaking from multiple scattering events that are achieved by embedded cylinders in a thin plate are performed. Minimization of refraction is performed using small surrounding cylinders with varying thickness i…
View article: Dependence of polymer concrete vibration characteristics on internal pipe and damper embedment
Dependence of polymer concrete vibration characteristics on internal pipe and damper embedment Open
View article: A Preliminary Design of Flight Test Conditions for a Sub-scale RBCC Engine using a Sounding Rocket
A Preliminary Design of Flight Test Conditions for a Sub-scale RBCC Engine using a Sounding Rocket Open
Various R&D programs for rocket-based combined cycle (RBCC) engines have progressed worldwide for the space development and the defense applications. As a way toward indigenous domestic RBCC program, a preliminary design of flight test con…