H S Kim

Pohang University of Science and Technology, Geijitsu, Gyeongsangbuk-do, South Korea

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Publications (811)1823.38 Total impact

  • C.-N. Son · H.-J. Jeong · J.-M. Kim · H.-S. Kim · S.-H. Kim
    Annals of the Rheumatic Diseases 06/2015; 74(Suppl 2):538.2-538. DOI:10.1136/annrheumdis-2015-eular.4498 · 10.38 Impact Factor
  • H.-J. Jeong · T.H. Lee · C.-N. Son · J.-M. Kim · H.-S. Kim · S.-H. Kim
    Annals of the Rheumatic Diseases 06/2015; 74(Suppl 2):1092.1-1092. DOI:10.1136/annrheumdis-2015-eular.4291 · 10.38 Impact Factor
  • Annals of Oncology 06/2015; 26(suppl 4). DOI:10.1093/annonc/mdv233.57 · 6.58 Impact Factor
  • J.G. Kim · S. Hong · N. Anjabin · B.H. Park · S.K. Kim · K.-G. Chin · S. Lee · H.S. Kim
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    ABSTRACT: The dynamic strain aging (DSA) of metallic materials due to solute atom diffusion to mobile dislocations induce deformation instability with load fluctuations and deformation localizations, hence reducing their sheet formability. In this paper, DSA behaviors of twinning induced plasticity (TWIP) steel with and without Al during tensile testing and deep drawing are investigated in terms of strain localization and the Portevin-Le Chatelier (PLC) band. A theoretical DSA model with internal variables of dislocation density and twin volume fraction is presented for an estimation of strain localization and strain hardening behavior of TWIP steels. The simulation results of the load history and PLC bands during tensile testing and deep drawing are in good agreement with the experimental values. A serration behavior is observed in high-Mn TWIP steels and its tensile residual stress is higher than that in the Al-added TWIP steels, which results in a deformation crack or delayed fracture of deep drawn specimens.
    Materials Science and Engineering A 03/2015; 633. DOI:10.1016/j.msea.2015.03.008 · 2.41 Impact Factor
  • S Y Lee · S-S Kwon · H S Kim · J H Yoo · J Kim · J Y Kim · B C Min · S J Moon · K H Sung
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    ABSTRACT: We evaluated the correlation between central bone mineral density (BMD) and peripheral bone attenuation using lower extremity computed tomography (CT). A good correlation was found between lower extremity CT and central BMD suggesting that CT is useful for screening osteoporosis, and that peripheral bone attenuation adequately reflects central BMD. This study aimed to evaluate the reliability and validity of CT as a screening tool for osteoporosis and to estimate the correlation between central BMD and peripheral bone attenuation using lower extremity CT. In total, 292 patients who underwent a lower extremity, lumbar spine, or abdomen and pelvic CT scan within a 3-month interval of a dual-energy X-ray absorptiometry (DEXA) examination were included. Following reliability testing, bone attenuation of the L1, L2, L3, L4, femoral head, femoral neck, greater trochanter, distal femur, proximal tibia, distal tibia, and talus was measured by placing a circular region of interest on the central part of each bony region on a coronal CT image. Partial correlation was used to assess the correlation between CT and DEXA after adjusting for age and body mass index. In terms of reliability, all bone attenuation measurements, except the femoral neck, showed good to excellent interobserver reliability (intraclass correlation coefficients, 0.691-0.941). In terms of validity, bone attenuation of the L1 to L4, femoral neck, and greater trochanter on CT showed significant correlations with BMD of each area on DEXA (correlation coefficients, 0.399-0.613). Bone attenuation of the distal tibia and talus on CT showed significant correlations with BMD of all parts on DEXA (correlation coefficients, 0.493-0.581 for distal tibia, 0.396-0.579 for talus). Lower extremity CT is a useful screening tool for osteoporosis, and peripheral bone attenuation on lower extremity CT adequately reflects central BMD on DEXA.
    Osteoporosis International 01/2015; 26(4). DOI:10.1007/s00198-014-3013-x · 4.17 Impact Factor
  • S H Lim · J Y Lee · M-Y Lee · H S Kim · J Lee · J-M Sun · J S Ahn · S-W Um · H Kim · B S Kim · S T Kim · D L Na · J Y Sun · S H Jung · K Park · O J Kwon · J-I Lee · M-J Ahn
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    ABSTRACT: It is unclear whether treating brain metastasis before starting systemic chemotherapy can improve survival compared to upfront chemotherapy in non-small cell lung cancer (NSCLC) with asymptomatic cerebral oligo-metastases. We undertook a randomized controlled trial of 105 patients with one to four brain metastases, admitted to Samsung Medical Center between 2008 and 2013. Patients were randomly assigned to receive stereotactic radiosurgery (SRS) (49 patients) followed by chemotherapy or upfront chemotherapy (49 patients). The primary end point was overall survival and secondary end points included central nervous system (CNS) progression-free survival, progression to symptomatic brain metastasis, and brain functional outcome. The median age was 58 years (range, 29-85) with ECOG 0-1 performance status, and 40% of patients were never smokers. Most patients had adenocarcinoma, and about half of patients had only one brain metastasis while, the rest had multiple cerebral metastases. The median overall survival time was 14.6 months (95% CI, 9.2-20.0) in SRS group and 15.3 months (95% CI, 7.2-23.4) for upfront chemotherapy group (P=.418). There was no significant difference in time to CNS disease progression (median, 9.4 months (SRS) vs. 6.6 months (upfront chemotherapy), P=.248). Symptomatic progression of brain metastases was observed more frequently in upfront chemotherapy group (26.5%) than SRS group (18.4%) but without statistical significance. Although this study included smaller sample size than initially anticipated due to early termination, SRS followed by chemotherapy did not improve overall survival in oligo-brain metastases NSCLC patients compared with upfront chemotherapy. Further study with large number of patients should be needed to confirm the use of upfront chemotherapy alone in this subgroup of patients. © The Author 2014. Published by Oxford University Press on behalf of the European Society for Medical Oncology. All rights reserved. For permissions, please email: journals.permissions@oup.com.
    Annals of Oncology 12/2014; 26(4). DOI:10.1093/annonc/mdu584 · 6.58 Impact Factor
  • J. G. Bak · H. S. Kim · J. Kim · K. I. You · S. H. Hong · M. K. Bae
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    ABSTRACT: The plasma parameters in the scrape-off layer (SOL) region and the particle flux at the divertor target are measured by using a fast reciprocating Langmuir probe assembly (FRLPA) and a fixed edge Langmuir probe array (ELPA) in the KSTAR. The e-folding lengths of the plasma density (n e ) and the electron temperature (T e ), λne and λTe , are obtained from the radial profile measurement using the FRLPA at the outboard mid-plane during ohmic and H-mode discharges. Particle fluxes measured by using the ELPA at the divertor target are mapped to the outboard mid-plane, and the fluxes are quite well matched to the radial profile of the particle flux from the FRLPA measurement. Finally, the peak heat flux at the divertor target during edge localized modes (ELMs) can be estimated to be up to 1.0 MWm−2 for the neutral beam power of ~ 2.7 MW by using T e at the separatrix and λTe from the FRLPA measurements. In this work, the experimental results from the probe measurements in the KSTAR are presented.
    Journal- Korean Physical Society 10/2014; 65(8):1232-1238. DOI:10.3938/jkps.65.1232 · 0.43 Impact Factor
  • M.H. Kim · H.J. Jeong · M.J. You · H.S. Kim · M.K. Chung · H.S. Lee
    Fertility and Sterility 09/2014; 102(3):e317-e318. DOI:10.1016/j.fertnstert.2014.07.1076 · 4.59 Impact Factor
  • H. S. Kim · S. J. Noh
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    ABSTRACT: Plasma-facing components (PFCs) in fusion devices inherently suffer from irradiation by hydrogen isotope plasmas. Graphite is used as the first wall of the Korea Superconducting Tokamak Advanced Research (KSTAR) because of its low atomic number and excellent thermal and mechanical properties. In this experiment, the effect of hydrogen-plasma irradiation on the PFCs was studied using KSTAR-like graphite tiles. The tiles were irradiated with low-energy hydrogen plasmas produced by an electron cyclotron resonance system. The changes in the surface morphology and disorders induced in the structure were investigated using field-emission scanning electron microscopy, X-ray diffraction, Raman spectroscopy, and electron spin resonance measurements.
    Journal- Korean Physical Society 09/2014; 65(5):606-609. DOI:10.3938/jkps.65.606 · 0.43 Impact Factor
  • M.K. Chung · M.J. Ryu · H.S. Kim · M.H. Kim · H.J. Jeong · H.S. Lee
    Fertility and Sterility 09/2014; 102(3):e66. DOI:10.1016/j.fertnstert.2014.07.225 · 4.59 Impact Factor
  • M.J. Ryu · H.S. Kim · J.H. Lee · M.H. Kim · H.J. Jeong · M.K. Chung
    Fertility and Sterility 09/2014; 102(3):e324. DOI:10.1016/j.fertnstert.2014.07.1097 · 4.59 Impact Factor
  • M.K. Chung · H.S. Kim · M.J. Ryu · M.H. Kim · H.S. Lee · H.J. Jeong
    Fertility and Sterility 09/2014; 102(3):e228. DOI:10.1016/j.fertnstert.2014.07.775 · 4.59 Impact Factor
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    ABSTRACT: Abstract This study examined the effects of a 6-week intermittent exercise training, at different intensities, on body composition, functional walking and aerobic endurance in overweight children. Forty-eight overweight children (age: 10.4 ± 0.9 years) were randomly assigned to either intervention or control group. Lower and higher intensity intermittent exercise groups (LIIE and HIIE) performed intermittent running three times a week. LIIE performed more intervals at a lower intensity [16 intervals at 100% of individual maximal aerobic speed (MAS), 8 minutes in total], and HIIE performed fewer intervals at a higher intensity (12 intervals at 120% of MAS, 6 minutes in total). Each interval consisted of a 15-second run at the required speed, followed by a 15-second passive recovery. After 6 weeks, HIIE had a significantly (p < 0.05) higher percentage reduction in sum of skinfolds (i.e. calf and triceps), and significantly (p < 0.05) fewer steps during the functional obstacle performance, as compared with LIIE and control group. Significant improvement (p < 0.05) was found in intermittent aerobic endurance for HIIE as compared to the control group. Higher intensity intermittent training is an effective and time-efficient intervention for improving body composition, functional walking and aerobic endurance in overweight children.
    European Journal of Sport Science 07/2014; 15(2):1-9. DOI:10.1080/17461391.2014.933880 · 1.31 Impact Factor
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    ABSTRACT: Background Fibromyalgia (FM) is a chronic pain disorder characterized by widespread pain, tenderness, and various associated symptoms including sleep disturbances, chronic fatigue, depression, and other somatic symptoms. Several longitudinal and cross-sectional studies in western countries have shown that a high body mass index (BMI) is a strong and independent risk factor for future development of FM and is associated with higher levels of FM symptoms. In addition, obese patients have more physical and emotional impairments compared with nonobese patients. Objectives The purpose of this study was to determine whether obesity and socioeconomic factors influence symptom severity in Korean patients with FM. Methods A total of 343 patients with FM were recruited from outpatient clinics at 11 medical centers across the Republic of Korea. All patients met the ACR 1990 classification criteria for FM. We interviewed these patients using a structured questionnaire that included sociodemographic data, current or past FM symptoms, and current use of relevant medications at the time of enrollment. Tender point counts and scores were assessed by thumb palpation. Patients were asked to complete a Korean version of the Fibromyalgia Impact Questionnaire (FIQ), the Brief Fatigue Inventory (BFI), the SF-36, the Beck Depression Inventory (BDI), the State-Trait Anxiety Inventory (STAI), the Self-Efficacy Scale, and the Social Support Scale. Results Based on an obesity definition of a BMI of ≥25, 76 (22.1%) of the 343 patients were obese. Obese patients were not different from nonobese patients in terms of tender points and scores, FIQ, BFI, SF-36, BDI, STAI, Self-Efficacy, and Social Support scores. After age-, gender-, and symptom duration adjustment by propensity score matching, no significant differences were also found between obese and nonobese patients. However, socioeconomic status such as employment, insurance, and education were significantly associated with symptom severity of FM. The unemployed patients had higher FIQ scores (p=0.011), higher BFI scores (p=0.013), lower physical and mental component SF-36 scores (p=0.012, p=0.005), higher BDI scores (p=0.005), and higher STAI II scores (p=0.041). Lower-income patients had higher FIQ score (p=0.040), lower physical and mental SF-36 scores (p=0.047, p=0.006), higher BDI scores (p<0.000), and lower Self-Efficacy scores (p=0.016). Finally, patients with an education of <12 years had higher tender points (p=0.034), higher BDI scores (p=0.007), and higher STAI II scores (p=0.045). Conclusions Our findings show that, contrary to Western patients, symptom severity in Korean patients with FM is associated with socioeconomic status, but not with obesity. Disclosure of Interest : None declared DOI 10.1136/annrheumdis-2014-eular.2676
    Annals of the Rheumatic Diseases 06/2014; 73(Suppl 2):292-292. DOI:10.1136/annrheumdis-2014-eular.2676 · 10.38 Impact Factor
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    ABSTRACT: Microorganisms such as fungi and bacteria cause many human diseases and therefore rapid and accurate identification of these substances is essential for effective treatment and prevention of further infections. In particular, contemporary microbial detection technique is limited by the low detection speed which usually extends over a couple of days. Here we demonstrate that metamaterials operating in the terahertz frequency range shows promising potential for use in fabricating the highly sensitive and selective microbial sensors that are capable of high-speed on-site detection of microorganisms in both ambient and aqueous environments. We were able to detect extremely small amounts of the microorganisms, because their sizes are on the same scale as the micro-gaps of the terahertz metamaterials. The resonant frequency shift of the metamaterials was investigated in terms of the number density and the dielectric constants of the microorganisms, which was successfully interpreted by the change in the effective dielectric constant of a gap area.
    Scientific Reports 05/2014; 4:4988. · 5.58 Impact Factor
  • European Journal of Cancer 05/2014; 50:e67. DOI:10.1016/j.ejca.2014.03.252 · 4.82 Impact Factor
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    ABSTRACT: Superconducting tokamaks like KSTAR, EAST and ITER need elaborate magnetic controls mainly due to either the demanding experiment schedule or tighter hardware limitations caused by the superconducting coils. In order to reduce the operation runtime requirements, two types of plasma simulators for the KSTAR plasma control system (PCS) have been developed for improving axisymmetric magnetic controls. The first one is an open-loop type, which can reproduce the control done in an old shot by loading the corresponding diagnostics data and PCS setup. The other one, a closed-loop simulator based on a linear nonrigid plasma model, is designed to simulate dynamic responses of the plasma equilibrium and plasma current (Ip) due to changes of the axisymmetric poloidal field (PF) coil currents, poloidal beta, and internal inductance. The closed-loop simulator is the one that actually can test and enable alteration of the feedback control setup for the next shot. The simulators have been used routinely in 2012 plasma campaign, and the experimental performances of the axisymmetric shape control algorithm are enhanced. Quality of the real-time EFIT has been enhanced by utilizations of the open-loop type. Using the closed-loop type, the decoupling scheme of the plasma current control and axisymmetric shape controls are verified through both the simulations and experiments. By combining with the relay feedback tuning algorithm, the improved controls helped to maintain the shape suitable for longer H-mode (10–16 s) with the number of required commissioning shots largely reduced.
    Fusion Engineering and Design 05/2014; 89(5). DOI:10.1016/j.fusengdes.2013.12.040 · 1.15 Impact Factor
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    ABSTRACT: In this study, phantom was used to evaluate attenuation correction computed tomography (CT) dose and image in case of pediatric positron emission tomography (PET)/CT scan. Three PET/CT scanners were used along with acryl phantom in the size for infant and ion-chamber dosimeter. The CT image acquisition conditions were changed from 10 to 20, 40, 80, 100 and 160 mA and from 80 to 100, 120 and 140 kVp, which aimed at evaluating penetrate dose and computed tomography dose indexvolume (CTDIvol) value. And NEMA PET Phantom™ was used to obtain PET image under the same CT conditions in order to evaluate each attenuation-corrected PET image based on standard uptake value (SUV) value and signal-to-noise ratio (SNR). In general, the penetrate dose was reduced by around 92% under the minimum CT conditions (80 kVp and 10 mA) with the decrease in CTDIvol value by around 88%, compared with the pediatric abdomen CT conditions (100 kVp and 100 mA). The PET image with its attenuation corrected according to each CT condition showed no change in SUV value and no influence on the SNR. In conclusion, if the minimum dose CT that is properly applied to body of pediatric patient is corrected for attenuation to ensure that the effective dose is reduced by around 90% or more compared with that for adult patient, this will be useful to reduce radiation exposure level.
    Radiation Effects and Defects in Solids 04/2014; 169(4). DOI:10.1080/10420150.2013.848443 · 0.60 Impact Factor
  • M H Park · H S Kim · S J Park · J D Song · S H Kim · Y J Lee · W J Choi · J H Park
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    ABSTRACT: InGaAs-capped InAs quantum dots (QDs) and InAs QDs were adopted for the study of the effects through growth temperature and the band structure of InAs QDs on the performance of GaAs-based QD solar cell. It has been shown that the defects due to low temperature growth resulted in the decrease of Voc, Jsc and external quantum efficiency for GaAs bulk solar cell and QD embedded solar cells. It has been also found that InAs QDs act as defects by trapping photo-generated carries which affect the carrier transport in QD solar cell. The QD solar cell with InGaAs-capped InAs QDs showed higher performance than the QD solar cell with only InAs QDs. Such result has been explained by photo-generated carrier trapping and tunneling through InGaAs QW state in InGaAs-capped InAs QDs.
    Journal of Nanoscience and Nanotechnology 04/2014; 14(4):2955-9. DOI:10.1166/jnn.2014.8639 · 1.34 Impact Factor
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    ABSTRACT: Earlier, we examined the positive effects of hyperoxic air on the cognitive ability of intellectually and developmentally disabled people (IDDP). In this study, the correlation between cognitive performance in the visual matching task and heart rate (HR) was investigated under normal air conditions. Eighteen men (mean age 28.7 ± 5.0 year) and 22 women (mean age 35.5 ± 6.9 year) with an assessed disability level of 2.3 ± 0.6 participated. The experiment consisted of three phases, a total of 7 min, including the rest (3 min), control (2 min), and visual matching task (2 min) phases. The HR in the visual matching task phase increased, compared to that in the rest and control phases. The cognitive ability in the visual matching task correlated with the HR values; the response time showed a negative correlation with the HR, while the accuracy rate showed a positive correlation. Thus, adaptive changes in cardiovascular regulation probably related to cognitive efforts and emotional excitation is a noticeable factor influencing brain supply with oxygen in IDDP (similarly to those in healthy people). The result of this study agrees with the earlier obtained indications that hyperoxic air can positively affect the cognitive performance in IDDP.
    Neurophysiology 04/2014; 46(2):169-172. DOI:10.1007/s11062-014-9423-8 · 0.17 Impact Factor

Publication Stats

13k Citations
1,823.38 Total Impact Points


  • 2002–2015
    • Pohang University of Science and Technology
      • • Department of Materials Science and Engineering
      • • Pohang Accelerator Laboratory
      Geijitsu, Gyeongsangbuk-do, South Korea
    • Korea Basic Science Institute KBSI
      Sŏul, Seoul, South Korea
  • 2014
    • University of Seoul
      Sŏul, Seoul, South Korea
  • 2011–2014
    • Konkuk University
      • Department of Biological Engineering
      Sŏul, Seoul, South Korea
  • 2010–2014
    • National Fusion Research Institute
      Daiden, Daejeon, South Korea
    • Soon Chun Hyang University Hospital
      Sŏul, Seoul, South Korea
  • 2000–2014
    • Korea University
      • • Department of Materials Science and Engineering
      • • Department of Physics
      • • College of Medicine
      Sŏul, Seoul, South Korea
    • Sunchon National University
      Junten, South Jeolla, South Korea
    • Chonnam National University Hospital
      Sŏul, Seoul, South Korea
    • Kyorin University
      • Department of Chemistry
      Mitaka, Tōkyō, Japan
    • Fukuoka Institute of Technology
      Hukuoka, Fukuoka, Japan
    • Jeonju National University of Education
      Tsiuentcheou, North Jeolla, South Korea
  • 1998–2014
    • Sungkyunkwan University
      • • School of Medicine
      • • School of Mechanical Engineering
      • • Samsung Medical Center
      • • School of Advanced Materials Science and Engineering (AMSE)
      • • Department of Orthopedic Surgery
      • • Department of Computer Engineering
      Sŏul, Seoul, South Korea
    • Youngdong University
      Sŏul, Seoul, South Korea
    • Ajou University Medical Center
      수원시, Gyeonggi-do, South Korea
    • Kyungnam University
      Changnyeong, South Gyeongsang, South Korea
  • 2013
    • Korean Institute of Geoscience and Mineral Resources
      Daiden, Daejeon, South Korea
  • 2010–2013
    • Dankook University
      Eidō, North Chungcheong, South Korea
  • 2008–2013
    • Pusan National University
      • Department of Civil and Environmental Engineering
      Tsau-liang-hai, Busan, South Korea
    • Asan Medical Center
      • Department of Nuclear Medicine
      Sŏul, Seoul, South Korea
      Seikan-ri, South Chungcheong, South Korea
    • Bundang Jesaeng Hospital
      Sŏngnam, Gyeonggi Province, South Korea
  • 2002–2013
    • Korea Electrotechnology Research Institute-KERI
      • Battery Research Center
      Tsau-liang-hai, Busan, South Korea
  • 1997–2013
    • Yonsei University
      • • Department of Oral Pathology
      • • Department of Astronomy
      • • Department of Pediatrics
      • • Department of Biomedical Engineering
      • • Department of Biomedical Laboratory Science
      • • Department of Biotechnology
      • • Department of Orthopaedic Surgery
      • • Department of Surgery
      • • Department of Internal Medicine
      Sŏul, Seoul, South Korea
    • Korea Institute of Science and Technology
      Sŏul, Seoul, South Korea
  • 1990–2013
    • Chungbuk National University
      • College of Pharmacy
      Chinsen, Chungcheongbuk-do, South Korea
  • 2000–2012
    • Chosun University
      • Department of Nuclear Energy Engineering
      Gwangju, Gwangju, South Korea
  • 1996–2012
    • Chonnam National University
      • • Department of Material Science and Engineering
      • • Department of Internal Medicine
      • • Department of Pathology
      • • Department of Otolaryngology and Head and Neck Surgery
      Gwangju, Gwangju, South Korea
  • 1995–2012
    • Kyungpook National University
      • • Department of Astronomy and Atmospheric Sciences
      • • School of Computer Science and Engineering
      • • Department of Applied Chemistry
      • • Department of Oral and Maxillofacial Surgery
      • • Department of Anatomy
      Daikyū, Daegu, South Korea
  • 1992–2012
    • Seoul National University
      • • Department of Obstetrics and Gynecology
      • • Department of Anesthesiology
      • • College of Agriculture and Life Sciences
      • • Department of Physics and Astronomy
      • • Department of Pharmacology
      • • College of Medicine
      • • Department of Dentistry
      Sŏul, Seoul, South Korea
    • Nagasaki University
      • Department of Pharmacology
      Nagasaki, Nagasaki, Japan
  • 2010–2011
    • Seoul National University Bundang Hospital
      • Department of Dermatology
      Sŏul, Seoul, South Korea
  • 2007–2011
    • Georgia Institute of Technology
      • School of Electrical & Computer Engineering
      Atlanta, Georgia, United States
    • Korea Institute of Nuclear Safety
      Sŏul, Seoul, South Korea
  • 2005–2011
    • Kyung Hee University
      • • Department of Medicine
      • • Department of Chemistry
      Seoul, Seoul, South Korea
    • University of Suwon
      Suigen, Gyeonggi Province, South Korea
    • Ufa State Aviation Technical University
      Oufa, Bashkortostan, Russia
    • Sun Moon University
      Onyang, Chungcheongnam-do, South Korea
  • 2000–2011
    • Hallym University
      • College of Medicine
      Sŏul, Seoul, South Korea
  • 1996–2011
    • Ajou University
      • • College of Natural Sciences
      • • Department of Obstetrics and Gynecology
      • • Department of Nephrology
      Sŏul, Seoul, South Korea
  • 1995–2011
    • Catholic University of Korea
      • • Department of Radiology
      • • Department of Physics
      • • Department of Dermatology
      • • Department of Pathology
      • • College of Medicine
      Sŏul, Seoul, South Korea
  • 2004–2010
    • Gwangju Institute of Science and Technology
      • School of Environmental Science and Engineering
      Gwangju, Gwangju, South Korea
    • Samsung Techwin Co.
      Onyang, Chungcheongnam-do, South Korea
    • National Cancer Center Korea
      • Gastric Cancer Branch
      Kōyō, Gyeonggi-do, South Korea
    • Stanford University
      Palo Alto, California, United States
    • Plant Genomics and Breeding Institute
      Sŏul, Seoul, South Korea
  • 2009
    • Institute for Basic Science
      Daiden, Daejeon, South Korea
    • Seoul Medical Center
      Sŏul, Seoul, South Korea
  • 2007–2009
    • National Institute of Animal Science
      Sŏul, Seoul, South Korea
  • 2002–2009
    • Chung-Ang University
      • School of Electrical and Electronics Engineering
      Sŏul, Seoul, South Korea
  • 2000–2009
    • Inha University
      Chemulpo, Incheon, South Korea
  • 1998–2009
    • Korea Advanced Institute of Science and Technology
      • • Department of Electrical Engineering
      • • Department of Biological Sciences
      • • Department of Materials Science and Engineering
      • • Department of Physics
      Sŏul, Seoul, South Korea
    • Seoul National University Hospital
      • • Department of Internal Medicine
      • • Department of Anesthesiology and Pain Medicine
      • • Department of Orthopedic Surgery
      • • Department of Radiology
      Sŏul, Seoul, South Korea
  • 1997–2009
    • Soonchunhyang University
      • Department of Electrical and Electronic Engineering
      Onyang, Chungcheongnam-do, South Korea
  • 2005–2008
    • Korea Institute of Energy Research
      Sŏul, Seoul, South Korea
    • Korea Maritime and Ocean University
      • Division of Electronics and Electrical Engineering
      Tsau-liang-hai, Busan, South Korea
  • 2001–2008
    • Korea Atomic Energy Research Institute (KAERI)
      Daiden, Daejeon, South Korea
    • Seonam University
      Onyang, South Chungcheong, South Korea
    • University of Rhode Island
      • College of Nursing
      Кингстон, Rhode Island, United States
    • Kyushu University
      • Undergraduate School of Agriculture
      Hukuoka, Fukuoka, Japan
  • 1999–2008
    • Inje University
      • Department of Mechanical and Automotive Engineering
      Kŭmhae, South Gyeongsang, South Korea
    • Chungnam National University
      • • College of Medicine
      • • Department of Materials Science and Engineering
      Daiden, Daejeon, South Korea
    • Northern Inyo Hospital
      BIH, California, United States
    • Imperial College London
      Londinium, England, United Kingdom
    • Korea Food and Drug Administration
      Seishō-gun, North Gyeongsang, South Korea
  • 1998–2008
    • Yonsei University Hospital
      • Department of Internal Medicine
      Sŏul, Seoul, South Korea
  • 2006–2007
    • University of Florida
      • Department of Materials Science and Engineering
      Gainesville, FL, United States
    • Daewoo Engineering and Construction
      Sŏul, Seoul, South Korea
    • Hanbat National University
      Daiden, Daejeon, South Korea
  • 2000–2007
    • Gyeongsang National University
      • Division of Applied Life Science
      Shinshū, Gyeongsangnam-do, South Korea
  • 2001–2006
    • Sogang University
      • Department of Electronic Engineering
      Sŏul, Seoul, South Korea
  • 1999–2006
    • University of Ulsan
      • • College of Medicine
      • • Department of Internal Medicine
      • • Department of Medicine
      Ulsan, Ulsan, South Korea
    • Samsung Advanced Institute of Technology
      Usan-ri, Gyeonggi-do, South Korea
  • 2003–2004
    • Ewha Womans University
      • Department of Pediatrics
      Sŏul, Seoul, South Korea
    • Keimyung University
      Sŏul, Seoul, South Korea
  • 1998–2004
    • Chonbuk National University
      • Research Center for Advanced Materials Development (RCAMD)
      Tsiuentcheou, Jeollabuk-do, South Korea
  • 2001–2002
    • Electronics and Telecommunications Research Institute
      Sŏul, Seoul, South Korea
  • 2000–2002
    • University of Strathclyde
      • Institute of Photonics
      Glasgow, Scotland, United Kingdom
  • 1995–2001
    • Okayama University
      • Faculty of Pharmaceutical Science
      Okayama, Okayama, Japan
  • 1998–2000
    • Ulsan University Hospital
      Urusan, Ulsan, South Korea
  • 1994–2000
    • Kyungsung University
      • Department of Food Science and Biotechnology
      Busan, Busan, South Korea
  • 1996–1997
    • Wonju Severance Christian Hospital
      Genshū, Gangwon-do, South Korea
  • 1995–1997
    • Wonkwang University
      • Department of Medicine
      Riri, North Jeolla, South Korea
  • 1995–1996
    • Korea Research Institute of Bioscience and Biotechnology KRIBB
      Anzan, Gyeonggi-do, South Korea