Domestic Conferences

Korean conference presentations in reversed chronological order

No. Authors Title Conference Year
1 H. Kim, D. Kang, M. Kim, B.-K. Kim, D.-G. Paeng Development and evaluation of harmful algal blooms acoustic detection system using ultrasound Proceedings of the Acoustical Society of Korea Conference, 35(1s), p30 2016
2 H. Kim, J. Kim, D.-G. Paeng, I.-H. Cho, J.-S. Choi Survey of sedimentary environment at the northern site in Chagwi-do nearby Jeju Island for installation of the embedded suction anchors Proceedings of the Korean Society for Marine Environment and Energy, p67 2016
3 D.-G. Paeng, C. Jin, M. Eames, J. Snell, N. Kassell Recent trends of brain treatment by focused ultrasound Proceedings of the Acoustical Society of Korea, p153 2016
4 D.-G. Paeng, C. Jin, M. Eames, J. Snell, N. Kassell Current status, limitations, and alternatives of brain treatment by thermal effects of focused ultrasound Korean Society for Therapeutic Ultrasound, pp.262-3 2016
5 J. Kim, D.-G. Paeng, J. Lee Performance comparison of the hemispherical sonar arrays according to element patterns Proceedings of the Acoustical Society of Korea Conference, 34(2), p202 2015
6 H. Kim, J. Kim, D.-G. Paeng Analysis of acoustic characteristics of low-salinity water in the south atlantic ocean and the east china sea Proceedings of the Acoustical Society of Korea Conference, 33(1), p34 2014
7 C. Jin, H. Kim, S.-H. Min, D.-G. Paeng, A. C. H. Yu Observation of elastic wall motion of a carotid artery bifurcation phantom under pulsatile flow Proceedings of the Acoustical Society of Korea Conference, 33(2), p56 2014
8 H. Kim, K.-H. Nam, J. Kim, D.-G. Paeng, S.-J. An, J.-B. Lee Measurements of acoustic backscattering strength from Amphidinium carterae Hulburt using a 40 MHz ultrasound transducer Proceedings of the Acoustical Society of Korea Conference, 33(2), p53 2014
9 D.-G. Paeng, T.-H. Bok, K.-H. Nam, J.-H. Yang Acoustic Physics in Ultrasound Imaging Proceedings of the Acoustical Society of Korea Conference, 32(1s), p82 2013
10 H. Kim, C. Yoon, H. Lee, J. Bae, C. H. Lee, D.-G. Paeng, W. Ruy, I. H. Cho Real-time Chat System Based on Wedge-type Ultrasound Sensors for Ship Body Communication 2013 The Korean Association of Ocean Science and Technology Societies Joint Academic Conference, Jeju, pp.292-294 2013
11 C. Jin, J. Kim, J. Bae, C. H. Lee, D.-G. Paeng, I. H. Cho, W. Ruy Comparison of Generated Guided Wave Modes by PWAS and Wedge Type Sensors on Ship Deck 2013 The Korean Association of Ocean Science and Technology Societies Joint Academic Conference, Jeju, pp.289-291 2013
12 J. Kim, J. Lee, C. H. Lee, D.-G. Paeng, W. Ruy, I. H. Cho, J. Bae, S. Park, D. H. Lee Scattering and Bending Losses of Guided Wave in a Vessel for Ship Body communication Channel 2013 The Korean Association of Ocean Science and Technology Societies Joint Academic Conference, Jeju, pp.285-288 2013
13 J. Kim, J. Lee, J. Bae, C. H. Lee, W. Ruy, I. H. Cho, D.-G. Paeng, S. Park, D. H. Lee Guided Wave Losses with distance for Ship Body Communication Channel on Shell of a Vessel 2013 The Korean Association of Ocean Science and Technology Societies Joint Academic Conference, Jeju, pp.282-284 2013
14 J. Lee, J. Kim, J. Bae, D.-G. Paeng, W. Ruy, I. H. Cho, J. H. Lee, S. Park, D. H. Lee Performance Improvement for Ship Body Communication Using Multiple Sensors 2013 The Korean Association of Ocean Science and Technology Societies Joint Academic Conference, Jeju, pp.279-281 2013
15 H. Lee, J. Lee, H. Kim, C. H. Lee, D.-G. Paeng, W. Ruy, I. H. Cho, J. Bae, S. Park, D. H. Lee Environment Monitoring System of Closed Area Based on Ship Body Communication 2013 The Korean Association of Ocean Science and Technology Societies Joint Academic Conference, Jeju, pp.276-278 2013
16 J. Lee, J. Kim, J. Bae, D.-G. Paeng, W. Ruy, I. H. Cho, C. H. Lee, S. Park, D. H. Lee A Novel AFSK Method for Ship Body Communication 2013 The Korean Association of Ocean Science and Technology Societies Joint Academic Conference, Jeju, pp.273-275 2013
17 C. Jin, K.-H. Nam, D.-G. Paeng 3-D geometry of the Rat Carotid Artery Bifurcation Based on High-Frequency Ultrasound Imaging and Hexahedral Meshing The 13th annual conference of the Biomedical Engineering Society for Circulation, p33 2013
18 K.-H. Nam, D.-G. Paeng Spatial variation of ultrasound backscatter in arterial bloodstream: A comparative study of invasive versus noninvasive imaging Proceedings of the Acoustical Society of Korea Conference, 32(2s), pp.122-123 2013
19 C. Jin, K.-H. Nam, D.-G. Paeng Automatic lumen segmentation from the cross-sectional ultrasound images of the rat carotid artery bifurcation The 14th annual conference of the Biomedical Engineering Society for Circulation, pp.13-14 2013
20 T.-H. Bok, J. Kim, J. Lee, J. Bae, C. H. Lee, D.-G. Paeng Digital acoustic communication for ship body communication network Proceedings of the Korean Society of Noise and Vibration Engineering, pp.628-629 2012
21 K.-H. Nam, Q. Kong, T.-H. Bok, D.-G. Paeng Measurement of pulsatile variations of high-frequency ultrasound echogenicity in arterial blood of rats Proceedings of the Acoustical Society of Korea Conference, 31(1), pp.131-132 2012
22 T.-H. Bok, Q. Kong, K.-H. Nam, Y. H. Oh, J. G. Kim, J. J. Lee, J. C. Choi, D.-G. Paeng A preliminary clinical study of stroke patients using ultrasound blood imaging from the radial artery Proceedings of the Acoustical Society of Korea Conference, 31(1), pp.59-60 2012
23 Q. Kong, K.-H. Nam, T.-H. Bok, Y. H. Oh, J. G. Kim, J. J. Lee, J. C. Choi, D.-G. Paeng Cyclic variation of echogenicity from the carotid artery in stroke patients and normal people Proceedings of the Acoustical Society of Korea Conference, 31(1), pp.55-56 2012
24 J. Kim, J. Bae, D.-G. Paeng, C. H. Lee, S. Kim Underwater signal classification using LPC and quadratic classifier Proceedings of the Acoustical Society of Korea Conference, 31(1), pp.51-52 2012
25 J. Kim, T.-H. Bok, D.-G. Paeng, J. Lee Effect of sensor elements of 2D array on transmitting and receiving performance Proceedings of the Acoustical Society of Korea Conference, 31(1), pp.12-13 2012
26 G. Kang, K. I. Lee, D.-G. Paeng, M. J. Choi Influence of the height of fluid medium on the pressure field in a petri-dish Proceedings of the Acoustical Society of Korea Conference, 31(2), pp.92-95 2012
27 J.-H. Yang, G. Kang, K. I. Lee, D.-G. Paeng, M. J. Choi Influence of external vibration on twinkling artifacts Proceedings of the Acoustical Society of Korea Conference, 31(2), pp.92-95 2012
28 J. Kim, T.-H. Bok, D.-G. Paeng, J. Lee Influence of beam pattern of convex array sensor on sound propagation and communication performance Proceedings of the Acoustical Society of Korea Conference, 31(2), pp.57-58 2012
29 K.-H. Nam, K. Ra, C. Jin, T.-H. Bok, D.-G. Paeng Effects of blood flow acceleration on high frequency ultrasound backscatter Proceedings of the Acoustical Society of Korea Conference, 31(2), pp.264-265 2012
30 K.-H. Nam, T.-H. Bok, K. Ra, C. Jin, D.-G. Paeng Dependence on stroke rate of high frequency backscatter by blood The 12th annual conference of the Biomedical Engineering Society for Circulation, pp.9-10 2012
31 J. Lee, J.-H. Lee, J.-W. Hyun, C. H. Lee, J. Bae, D.-G. Paeng, W.-H. Kim, M. H. Choe Electrical beam steering system for parametric array Proceedings of the Acoustical Society of Korea Conference, 30(1s), pp.890-891 2011
32 J. Kim, T.-H. Bok, D.-G. Paeng, J. Bae, C. H. Lee Design and test of ultrasound biomicroscopy using a 40 MHz angled needle transducer Proceedings of the Acoustical Society of Korea Conference, 30(1s), pp.239-240 2011
33 G. Kang, S. R. Guntur, K. I. Lee, D.-G. Paeng, M. J. Choi Dynamic visualization of the thermal lesion by high intensity focused ultrasound Proceedings of the Acoustical Society of Korea Conference, 30(1s), pp.314-317 2011
34 Y. J. Baek, G. Kang, D.-G. Paeng, K. I. Lee, M. J. Choi Contrast between the ultrasonic power measurements based on radiation force and temperature rise Proceedings of the Acoustical Society of Korea Conference, 30(1s), pp.318-321 2011
35 H. J. Byeon, G. Kang, D.-G. Paeng, K. I. Lee, M. J. Choi Dynamic blood flow monitoring in TPLS using ultrasound Proceedings of the Acoustical Society of Korea Conference, 30(1s), pp.322-325 2011
36 J. Kim, T.-H. Bok, D.-G. Paeng, I. C. Pang, J. Lee Effects of daily variation of water temperature and low salinity on acoustic propagation Proceedings of the Acoustical Society of Korea Conference, 30(1s), pp.855-858 2011
37 T.-H. Bok, J. Kim, J. Bae, C. H. Lee, D.-G. Paeng, S. Kim Ambient noise cancellation from the transient noise using sound masking method Proceedings of the Acoustical Society of Korea Conference, 30(1s), pp.974-975 2011
38 J. Kim, T.-H. Bok, C. H. Lee, D.-G. Paeng, J. Bae, S. Kim The classification of underwater biological transient noise using ML detection Proceedings of the Acoustical Society of Korea Conference, 30(1s), pp.976-977 2011
39 J. Kim, T.-H. Bok, D.-G. Paeng, J. Lee The conditions for acoustic surface channel in low-salinity environment Proceedings of the Acoustical Society of Korea Conference, 30(1s), pp.716-717 2011
40 T.-H. Bok, Y. Li, D.-G. Paeng In Vitro measurement of blood echogenicity in a mock vessel using ultrasound microscopy Proceedings of the Acoustical Society of Korea Conference, 30(1s), pp.458-459 2011
41 Y. Li, T.-H. Bok, J.-H. Yang, M.-J. Choi, D.-G. Paeng Red Blood Cell Aggregation Tendency Between Smokers and Nonsmokers Measured by Laser and Ultrasound Proceedings of the Acoustical Society of Korea Conference, 30(1s), pp.316-317 2011
42 Y. Li, T.-H. Bok, D.-G. Paeng Simulation of Time for Red Blood Cell Aggregation in the Depletion Model Proceedings of the Acoustical Society of Korea Conference, 30(1s), pp.314-315 2011
43 G. Kang, S. R. Guntur, K. I. Lee, D.-G. Paeng, M. J. Choi Dynamic Visualization of the Thermal Lesion by High Intensity Focused Ultrasound Proceedings of the Acoustical Society of Korea Conference, 30(1s), pp.312-313 2011
44 T.-H. Bok, Y. H. Oh, J. G. Kim, J. J. Lee, J. C. Cho, D.-G. Paeng A preliminary study of ultrasound blood imaging of stroke patients Proceedings of the Acoustical Society of Korea Conference, 30(2s), pp.287-288 2011
45 S. C. Cho, G. Kang, K. I. Lee, D.-G. Paeng, M. J. Choi Acoustic characterization of a domestic electromagnetic type ESWT system Proceedings of the Acoustical Society of Korea Conference, 30(2s), pp.289-290 2011
46 T.-H. Bok, J. Kim, D.-G. Paeng, J. Bae, C. H. Lee Rotational motion control of an angled needle transducer for high frequency ultrasound imaging Proceedings of the Acoustical Society of Korea Conference, 30(2s), pp.386-387 2011
47 J.-H. Yang, G. Kang, D.-G. Paeng, K. I. Lee, M. J. Choi TA images in relation to the property of target tissues Proceedings of the Acoustical Society of Korea Conference, 30(2s), pp.388-389 2011
48 G. Kang, K. I. Lee, D.-G. Paeng, M. J. Choi Life time of the bubbles produced by a shock pulse from an ESWT system Proceedings of the Acoustical Society of Korea Conference, 30(2s), pp.390-391 2011
49 J. Kim, T.-H. Kim, D.-G. Paeng, J. Lee Eigen Ray Model considering beam pattern of a source Proceedings of the Acoustical Society of Korea Conference, 30(2s), pp.496-497 2011
50 K.-H. Nam, D.-G. Paeng, S.-J. Lee Ultrasonic characterization and visualization of RBC aggregation in flowing blood Proceedings of the Biomedical Engineering Society for Circulatory Disorders, pp.151-160 2010
51 Y. Li, T.-H. Bok, J.-H. Yang, M.-J. Choi, D.-G. Paeng Flow speed dependence of harmonic echogenicity from porcine whole blood and erythrocyte suspension under steady flow Proceedings of the Acoustical Society of Korea Conference, 29(1s), pp.52-55 2010
52 J. Kim, T.-H. Bok, D.-G. Paeng Normal mode acoustic scattering considering elastic layers Proceedings of the Acoustical Society of Korea Conference, 29(1s), pp.149-152 2010
53 T.-H. Bok, J. Kim, D.-G. Paeng Characteristics of Underwater Acoustic Propagation and Communication Channel using Ray Tracing near the Southern Coast of Jeju in Korea 40th anniversary of Agency for Defense Development Conference Proceedings, pp.126-129 2010
54 J. Kim, T.-H. Bok, D.-G. Paeng, J. Bae, C.-H. Lee, I.-C. Pang, S. Kim Variations of the sound propagation caused by Low-salinity water mass in the Western part of Jeju Island Proceedings of the Acoustical Society of Korea Conference, 29(2s), pp.181-182 2010
55 T.-H. Bok, J. Kim, D.-G. Paeng, C. H. Lee, J. Bae, I. C. Pang, J. Lee, H.-S. Seo Simulation of underwater communication in the low salinity layer of the western sea of Jeju Proceedings of the Acoustical Society of Korea Conference, 29(2s), pp.118-119 2010
56 T.-H. Bok, Y. Li, D.-G. Paeng, H.-J. Kang Analysis of the blood echogenicity using the probability distribution of the ultrasound image of the radial artery Proceedings of the Acoustical Society of Korea Conference, 29(2s), pp.183-184 2010
57 Y. Li, T.-H. Bok, J.-H. Yang, M.-J. Choi, D.-G. Paeng The effects of Body Mass Index (BMI) on the cyclic variations in blood echogenicity of carotid artery Proceedings of the Acoustical Society of Korea Conference, 29(2s), pp.710-711 2010
58 J.-H. Yang, K. S. Lee, G. Kang, D.-G. Paeng, M. J. Choi Effects of ultrasonic probe defects on the spatial resolution of B-mode images Proceedings of the Acoustical Society of Korea Conference, 28(1s), pp.176-179 2009
59 Y. Li, T.-H. Bok, J.-H. Yang, M.-J. Choi, D.-G. Paeng Cyclic variation of echogenicity of smokers and nonsmokers from transverse images of the carotid artery Proceedings of the Acoustical Society of Korea Conference, 28(1s), pp.184-187 2009
60 T.-H. Bok, Y. Li, M.-J. Choi, D.-G. Paeng High frequency ultrasound imaging of the radial artery Proceedings of the Acoustical Society of Korea Conference, 28(1s), pp.248-251 2009
61 J.-H. Yang, G. Kang, D.-G. Paeng, K. I. Lee, M. J. Choi A simple method to detect the defected elements of an ultrasonic probe Proceedings of the Acoustical Society of Korea Conference, 28(2s), pp.276-279 2009
62 M. J. Choi, S. C. Cho, K. I. Lee, D.-G. Paeng Extracorporeal Shock Wave Treatment Proceedings of the Acoustical Society of Korea Conference, 28(2s), pp.288-291 2009
63 Y. Li, T.-H. Bok, J.-H. Yang, M.-J. Choi, D.-G. Paeng Ultrasonic evaluation of erythrocyte aggregation changed by acute smoking effects Proceedings of the Acoustical Society of Korea Conference, 28(2s), pp.284-287 2009
64 K. Choi, K. Ha, M. Kim, J. Kim, G. Kang, M. J. Choi, D.-G. Paeng, J.-H. Yang Analysis of the influence of defective elements on imaging for a medical ultrasonic probe Proceedings of the Acoustical Society of Korea Conference, 28(2s), pp.322-325 2009
65 T.-H. Bok, Y. Li, D.-G. Paeng, J. Lee, K.-K. Shin, C.-Y. Joh Computation of Mutual Radiation Impedance between Radiators of Cylindrical Curve Array Transducer 23rd Underwater Acoustics Symposium Proceedings, pp.137-140 2008
66 G. Kang, J. H. Han, S. R. Guntur, J. M. Lee, D.-G. Paeng, K. I. Lee, Y. T. Kim, M. J. Jho, M. J. Choi HIFU lesions simulated using a tissue mimicking hydrogel phantom Proceedings of the Acoustical Society of Korea Conference, 27(1s), pp.113-114 2008
67 S. R. A. R. Guntur, D.-G. Paeng, J. M. Lee, K. I. Lee, Y. T. Kim, M. J. Jho, A. Coleman, M. J. Choi Changes in Ultrasonic properties of liver tissue before and after heating Proceedings of the Acoustical Society of Korea Conference, 27(1s), pp.268-269 2008
68 T.-H. Bok, Y. Li, D.-G. Paeng, J. Lee, K.-K. Shin, C.-Y. Joh Calculation of mutual radiation impedance by spatial convolution in a cylindrical baffle Proceedings of the Acoustical Society of Korea Conference, 27(2s), pp.13-16 2008
69 Y. Li, K.-H. Nam, T.-H. Bok, D.-G. Paeng, J. C. Choi Cyclic variation of blood echogenicity from the ultrasound cross sectional images of the carotid artery using Hough Transform Proceedings of the Acoustical Society of Korea Conference, 27(2s), pp.165-168 2008
70 S. R. A. R. Guntur, G. Kang, K. I. Lee, D.-G. Paeng, M. J. Choi Visualization of thermal lesion by HIFU irradiation in gel phantom using clouding point effect by a non ionic surface active agent Proceedings of the Acoustical Society of Korea Conference, 27(2s), pp.169-172 2008
71 D.-G. Paeng, J. H. Chang, K. K. Shung, M. Humayun High frequency ultrasound (>40 MHz) imaging by rotational scanning of angled needle transducers and its applications Proceedings of the Acoustical Society of Korea Conference, 27(2s), pp.173-176 2008
72 J.-H. Yang, K. S. Lee, G. Kang, D.-G. Paeng, M. J. Choi 동적 영역과 주파수 모드 설정이 초음파 영상에 미치는 영향 Proceedings of the Acoustical Society of Korea Conference, 27(2s), pp.255-258 2008
73 D.-G. Paeng, R. Chen, K. K. Shung, M. Humayun Sonothrombolysis of rabbit ear and retinal veins for retinal vein occlusion Proceedings of the Acoustical Society of Korea Conference, 27(2s), pp.267-270 2008
74 J.-H. Kim, T.-H. Bok, D.-G. Paeng, T. Shim, Y. Kim, J.-S. Park Phase variance of acoustic signals depending on turbulence strength near the Mukho port in the East Sea of Korea Proceedings of the Acoustical Society of Korea Conference, 27(2s), pp.401-404 2008
75 T.-H. Bok, C.-H. Lee, D.-G. Paeng Channel Capacity for Underwater Communication by Sound Speed Profile and Distance between Elements of Array Sensors Proceedings of the Acoustical Society of Korea Conference, 26(1s), pp.21-24 2007
76 T.-H. Bok, D.-G. Paeng, Y. Park, S.-C. Park Sea Floor Classification by Nakagami Distribution of Acoustic Signal from Sparker Proceedings of the Acoustical Society of Korea Conference, 26(2s), pp.85-86 2007
77 T.-H. Bok, Y. Li, D.-G. Paeng, J. Lee, G.-K. Shin, C.-Y. Cho Characteristics of pressure field depending on the curvature of conformal acoustic array Proceedings of the Acoustical Society of Korea Conference, 26(2s), pp.89-90 2007
78 J.-H. Kim, T.-H. Bok, D.-G. Paeng, T. Shim Characteristics of acoustic propagation depending on turbulence strength in the Korean shallow ocean for the operation of HMS (Hull Mounted Sonar) Proceedings of the Acoustical Society of Korea Conference, 26(2s), pp.171-172 2007
79 S. R. A. R. Guntur, Y. Li, T.-H. Bok, D.-G. Paeng, M.-J. Choi Ultrasonic measurements of blood and plasma coagulation with and without anticoagulant Proceedings of the Acoustical Society of Korea Conference, 26(2s), pp.233-234 2007
80 C.-H. Lee, T.-H. Bok, D.-G. Paeng Acoustic Multi-Channel Capacity for Underwater Communication Proceedings of Acoustical Society of Korea, 25(2), pp.27-28 2006
81 T.-H. Bok, C.-H. Lee, D.-G. Paeng Estimation of DOA (Direction of Arrival) using Array Signal Processing in an Underwater Acoustic Channel Proceedings of Acoustical Society of Korea, 25(2), pp.41-42 2006
82 Y. Li, S. R. R. Guntur, M. J. Choi, D.-G. Paeng Measurements of acoustic properties of Tofu and Acorn Curd as potential tissue-mimicking materials Proceedings of Acoustical Society of Korea, 24(1), pp.157-160 2005
83 S. R. R. Guntur, Y. Li, M. J. Choi, D.-G. Paeng A study of blood coagulation using ultrasound Proceedings of Acoustical Society of Korea, 24(1), pp.161-164 2005
84 G. Kang, M. J. Choi, D.-G. Paeng, S. S. Park, N. M. Gibson, A. J. Coleman Deterioration of the quality of ultrasonic images caused by probe defects Proceedings of Acoustical Society of Korea, 24(1), pp.165-168 2005
85 Y. Li, S. R. R. Guntur, M. J. Choi, D.-G. Paeng Stability analysis of the acoustic properties of tofu and muk using an automatic measurement system Proceedings of Acoustical Society of Korea, 24(2), pp.65-68 2005
86 S. R. R. Guntur, Y. Li, M. J. Choi, D.-G. Paeng Ultrasonic measurement of physiological phases of blood and plasma coagulation Proceedings of Acoustical Society of Korea, 24(2), pp.69-72 2005
87 D.-G. Paeng, H. H. Kim, S. M. Rhim, S. G. Lee A single element 40 MHz transducer using PMN-PT single crystal Proceedings of Acoustical Society of Korea, 24(2), pp.73-76 2005
88 M. J. Choi, G. Kang, D.-G. Paeng, S. M. Rhim Harmonic generation emitted from ultrasonic contrast agent in response to a typical diagnostic ultrasound Proceedings of Acoustical Society of Korea, 23(1), pp.373-378 2004
89 M. J. Choi, S. C. Cho, G. Kang, D.-G. Paeng, J. S. Lee Preliminary evaluation of a tapered cylindrical shock wave source Proceedings of Acoustical Society of Korea, 23(1), pp.379-384 2004
90 D.-G. Paeng, M. J. Choi A study of blood disturbance by an eccentric stenosis under pulsatile flow using ultrasound imaging Proceedings of Acoustical Society of Korea, 23(2), pp.179-182 2004
91 T.-H. Bok, E. H. Kim, C. W. Lee, J. Y. Na, D.-G. Paeng Estimation of concentration of red tide plankton using ultrasonic sensor Proceedings of Acoustical Society of Korea, 23(2), pp.407-410 2004
92 D.-G. Paeng Noninvasive Observation of Echogenicity Variation during a Cardiac Cycle on Human Carotid Arteries Proceedings of Acoustical Society of Korea, 22(2), pp.265-268 2003
93 K. K. Shung, D.-G. Paeng Ultrasound: An Unexplored Tool for Blood Flow Visualization and Hemodynamic Measurements Proceedings of Acoustical Society of Korea, 21(2), pp.9-12 2002
94 D.-G. Paeng, K. K. Shung An integrated explanation of cyclic and radial variation of the ultrasonic backscatter from whole blood Proceedings of Acoustical Society of Korea, 21(2), pp.391-394 2002