|
|
|
|
|
Jae-Pil Chung and Seong-Real Lee
The nonlinear Kerr effect and chromatic dispersion are the fundamental causes of optical signal degradation in single-mode fiber (SMF) and erbium-doped fiber-amplification (EDFA)-based wavelength division multiplexing (WDM) transmission. Dispersion manag...
ver más
|
|
|
|
|
|
|
|
|
|
|
Jae-Hyeon Park, Sung-Woo Park, Jong-Pil Kim and Hyun-Ung Oh
A novel passive vibration-damping device is proposed and investigated for a large deployable solar array. One strategy for achieving high damping in a solar panel is using a yoke structure comprising a hyperelastic shape memory alloy and multiple viscous...
ver más
|
|
|
|
|
|
|
|
|
|
|
Min Roh, Sang-Myeong Oh, Pil-Hun Chang, Hyun-Suk Kang and Hyung-Suk Kim
A regional wave forecasting system in East Asia, including the Korean Peninsula, was built based on WAVEWATCH III using offshore wind forecast data from the Global Data Assimilation Prediction System. The numerical simulations were performed on the sensi...
ver más
|
|
|
|
|
|
|
|
|
|
|
Sangmin Park, SeolAh Park, Sang-Pil Yun, Kyungeun Lee, Byeongkwan Kang, Myeong-in Choi, Hyeonwoo Jang and Sehyun Park
To realize carbon neutrality, understanding the energy consumed in the building sector, which is more than that in other sectors, such as industry, agriculture, and commerce, is pivotal. Approximately 37% of energy consumption belongs to the building sec...
ver más
|
|
|
|
|
|
|
|
|
|
|
Hye-In Kim, Bong-Geon Chae, Pil-Gyeong Choi, Mun-Shin Jo, Kyoung-Muk Lee and Hyun-Ung Oh
In this study, we propose a thermal design for an on-board blackbody (BB) for spaceborne infrared (IR) sensor calibration. The main function of the on-board BB is to provide highly uniform and precise radiation temperature reference sources from 0 °C to ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Stephan Sundermeier, Maximilian Passmann, Stefan aus der Wiesche and Eugeny Y. Kenig
In numerous turbomachinery applications, e.g., in aero-engines with regenerators for improving specific fuel consumption (SFC), heat exchangers with low-pressure loss are required. Pil low-plate heat exchangers (PPHE) are a novel exchanger type and promi...
ver más
|
|
|
|
|
|
|
|
|
|
|
Sung-Woo Byun and Seok-Pil Lee
The goal of the human interface is to recognize the user?s emotional state precisely. In the speech emotion recognition study, the most important issue is the effective parallel use of the extraction of proper speech features and an appropriate classific...
ver más
|
|
|
|
|
|
|
|
|
|
|
Min Roh, Hyung-Suk Kim, Pil-Hun Chang and Sang-Myeong Oh
A wave forecast numerical simulation was performed for Typhoon Lingling around the Korean Peninsula and in the East Asia region using sea winds from 24 members produced by the Ensemble Prediction System for Global (EPSG) of Korea Meteorological Administr...
ver más
|
|
|
|
|
|
|
|
|
|
|
Soo-Jin Kang, Sung-Woo Park, Hye-Yoon Choi, Gu-Hyun Ryu, Jong-Pil Kim, Sung-Hoon Jung, Se-Young Kim, Hyon-Ik Lee and Hyun-Ung Oh
This paper presents the effectiveness of the thermo-mechanical design of a high-speed digital receiver unit (HSDRU) developed for spaceborne synthetic aperture radar applications. The main features of HSDRU?s thermo-mechanical design include the thermal ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Jongbeom Kim, Hong-Pil Ha, Kyung-Mo Kim and Kyung-Young Jhang
The ultrasonic nonlinearity parameter is used to evaluate the nonlinear elasticity of a material, which is determined from the displacement amplitude of the fundamental and second-order frequencies components in an ultrasonic wave propagating through a m...
ver más
|
|
|
|
|
|