Alternating Sunspot Area and Hilbert Transform Analysis

by Bang-Yeop Kim, Heon-Young Chang
Published 2011-12-01

Spectral Analysis of Geomagnetic Activity Indices and Solar Wind Parameters

by Jung-Hee Kim, Heon-Young Chang
Published 2014-06-01

Do Inner Planets Modulate the Space Environment of the Earth?

by Jung-Hee Kim, Heon-Young Chang
Published 2014-03-01

Gamma-ray Burst Formation Environment: Comparison of Redshift Distributions of GRB Afterglows

by Sung-Eun Kim, Heon-Young Chang
Published 2005-12-01

Relative Sunspot Number Observed from 2002 to 2011 at ButterStar Observatory

by Sung-Jin Oh, Heon-Young Chang
Published 2012-06-01

Revisiting the Correlations of Peak Luminosity with Spectral Lag and Peak Energy of the Observed Gamma-ray Bursts

by Yun-A Jo, Heon-Young Chang
Published 2016-12-01

Attitudes of Citizens towards Urban Parks and Green Spaces for Urban Sustainability: The Case of Gyeongsan City, Republic of Korea

by Young-Chang Lee, Keun-Ho Kim
Published 2015-06-01

Statistical Properties of Geomagnetic Activity Indices and Solar Wind Parameters

by Jung-Hee Kim, Heon-Young Chang
Published 2014-06-01

A Role of Proto-Accretion Disk Heating Proto-Planets to Evaporation

by Heon-Young Chang, Chul-Sung Choi
Published 2002-09-01

Comparing Directional Parameters of Very Fast Halo CMEs

by Su-Lyun Rho, Heon-Young Chang
Published 2008-12-01

Does Correction Factor Vary with Solar Cycle?

by Heon-Young Chang, Sung-Jin Oh
Published 2012-06-01

Telestacicola turgipes n. sp. (Copepoda, Poecilostomatoida, Rhynchomolgidae) Associated with Basket Stars (Ophiuroidea, Euryalida) from Korea

by Il-Hoi Kim, Cheon Young Chang
Published 2016-04-01

Long Term Variability of the Sun and Climate Change

by Il-Hyun Cho, Heon-Young Chang
Published 2008-12-01

Latitudinal Distribution of Sunspots Revisited

by Il-Hyun Cho, Heon-Young Chang
Published 2011-03-01

Short Periodicities in Latitudinal Variation of Sunspots

by Bang-Yeop Kim, Heon-Young Chang
Published 2011-06-01

On Spatial Distribution of Short Gamma-Ray Bursts from Extragalactic Magnetar Flares

by Heon-Young Chang, Hee Il Kim
Published 2002-03-01

A board computer system design for use in low-earth orbit microsatellite mission

by Young, Chang-Yow, 楊騏祐
Published 1998

Change of Sunspot Groups Observed from 2002 to 2011 at ButterStar Observatory

by Sung-Jin Oh, Heon-Young Chang
Published 2012-09-01

A Study on the Air-Exchange Improvement of the Vertical Duck Vent by Adding the Air Check Valve

by Young Chang-Chin, 楊昌縉
Published 2005

Study of Feasibility on Cement Products Using Washed and Dried Slurry to Substitute Fine Aggregate

by Ming-Young Chang, 張閔揚
Published 2007