Hayong Kim

ORCID: 0000-0002-0430-6045
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About
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Research Areas
  • Flood Risk Assessment and Management
  • Hip and Femur Fractures
  • Hydrology and Watershed Management Studies
  • Tribology and Lubrication Engineering
  • Magnetic Bearings and Levitation Dynamics
  • Hydrology and Drought Analysis
  • Shoulder and Clavicle Injuries
  • Pelvic and Acetabular Injuries
  • Hydrology and Sediment Transport Processes
  • Bone fractures and treatments
  • Shoulder Injury and Treatment
  • Soil erosion and sediment transport
  • Electric Motor Design and Analysis
  • Total Knee Arthroplasty Outcomes
  • Copper-based nanomaterials and applications
  • Spine and Intervertebral Disc Pathology
  • Foot and Ankle Surgery
  • Orthopedic Surgery and Rehabilitation
  • Sarcoma Diagnosis and Treatment
  • Cardiac, Anesthesia and Surgical Outcomes
  • Bone Tumor Diagnosis and Treatments
  • ZnO doping and properties
  • Sensorless Control of Electric Motors
  • Diverse Approaches in Healthcare and Education Studies
  • Spinal Fractures and Fixation Techniques

Eulji University
2007-2024

Korea Environment Institute
2021-2024

Eulji General Hospital
2020-2022

Eulji University Hospital
2018-2021

Kongju National University
2013-2020

Clinical Orthopaedics and Related Research
2020

Korea University
2014-2016

Seoul Institute
2015

Government of the Republic of Korea
2015

Korea Atomic Energy Research Institute
2000-2014

A highly transparent self-cleaning superhydrophobic surface was prepared by electrospraying an organosilane-coated alumina precursor.

10.1039/c5ta02226f article EN Journal of Materials Chemistry A 2015-01-01

The authors studied the long-term results of femoral derotational osteotomy (FDO) for medial torsion in ambulatory children with cerebral palsy. Thirty 45 femurs that underwent distal FDO were followed a mean 6.5 years. Although correction was achieved after surgery, recurrence occurred during follow-up 15 femurs. Preoperative external hip rotation 10.7 +/- 7.2 degrees increased to 41.3 16.6 1 year surgery and decreased 28.2 14.7 5 years surgery. On kinematic data, maximum stance 30 before...

10.1097/01.bpo.0000173304.34172.06 article EN Journal of Pediatric Orthopaedics 2005-10-21

Both subtalar arthroscopic and posterior endoscopic techniques are used to treat ankle impingement syndrome (PAIS). However, there have been no studies comparing the 2 procedures.Both excisions of os trigonum safe effective in treating PAIS.Cohort study; Level evidence, 3.Twenty-eight patients were treated with excision either by an (16 patients) or (12 technique. The mean patient age was 29.8 years (range, 17-55 years), follow-up period 30 months 18-58 months). Preoperative postoperative...

10.1177/0363546513480614 article EN The American Journal of Sports Medicine 2013-03-20

Background: The treatment of lateral ankle instability is challenging when the remaining ligamentous tissue insufficient. Anatomic reconstruction with a tendon graft good option that can produce stable and avoid complications nonanatomic tenodesis procedure. Hypothesis: A new technique for anatomically reconstructing ligaments using an extensor digitorum longus fourth toe will be effective treating chronic insufficiency. Study Design: Case series; Level evidence, 4. Methods: Twenty-four...

10.1177/0363546510388882 article EN The American Journal of Sports Medicine 2011-01-06

10.1053/j.jfas.2010.06.006 article EN The Journal of Foot & Ankle Surgery 2010-07-22

In recent years, the intensity and frequency of droughts have been increasing with advent climate crisis. Agricultural a significant economic social impact. drought is not only natural disaster but also leads to food security threats reduced activities, such as decreased productivity. Therefore, it very important specify scale agricultural quantitatively estimate damage. this study, we developed an analytical methodology assess damage estimated in 2018 2019 for Republic Korea. The was caused...

10.3390/w16101342 article EN Water 2024-05-08

Twenty-three rainfall events were monitored to determine the characteristics of stormwater runoff entering a rain garden facility and evaluate its performance in terms pollutant removal volume reduction. Data gathered during five-year monitoring period utilized develop deep learning-based model that can predict concentrations Total Suspended Solids (TSS), Chemical Oxygen Demand (COD), Nitrogen (TN), Phosphorus (TP). Findings revealed was capable effectively reducing solids, organics,...

10.3390/w13243488 article EN Water 2021-12-08

In<sub>2</sub>O<sub>3</sub> micro-cubes were fabricated <italic>via</italic> chemical bath deposition on an indium tin oxide (ITO) substrate, over which highly textured Bi<sub>2</sub>WO<sub>6</sub> nanopillars grown a diffusion-and-aggregation phenomenon by electrostatic spraying deposition.

10.1039/c5ra16833c article EN RSC Advances 2015-01-01

We have demonstrated the first example of carbon- and oxygen-free Cu(In,Ga)(SSe)2 (CIGSSe) absorber layers prepared by electrospraying a CuInGa (CIG) precursor followed annealing, sulfurization, selenization at elevated temperature. X-ray diffraction scanning electron microscopy showed that amorphous as-deposited film was converted into polycrystalline CIGSSe with flat-grained morphology after post-treatment. The optimal post-treatment temperature 300 °C for annealing 500 both sulfurization...

10.1021/am501286d article EN ACS Applied Materials & Interfaces 2014-04-25

The purpose of this study was to investigate the change in incidence rate, length hospital stay (LOS), in-hospital mortality and surgical method hip fractures during coronavirus disease 2019 (COVID-19) pandemic South Korea where lockdown restrictions were not implemented.We calculated expected values fractures, LOS fracture patients 2020 (COVID period) based database Korean National Health Insurance Review Assessment (HIRA) a 9-year period from 2011 (pre-COVID period). A generalized...

10.3346/jkms.2023.38.e137 article EN cc-by-nc Journal of Korean Medical Science 2023-01-01

This study was conducted to compare cemented and cementless bipolar hemiarthroplasty in elderly patients with unstable intertrochanteric fractures via meta-analysis systematic review of relevant studies.Systematic were performed on 31 available clinical studies; 19 these studies used stems, 12 one both types two involved a comparative analysis stem types.There statistically significant differences rates leg length discrepancy (LLD) greater than 1 cm between the (event rate, 0.089) groups...

10.5371/hp.2018.30.4.241 article EN Hip & Pelvis 2018-12-06

Background: Because acute cholecystitis in elderly hip fracture is not easily distinguishable from other gastrointestinal symptoms and involves atypical clinical behaviors, it may be diagnosed the early stage.However, exact incidences could reported.We utilized data a nationwide claims database attempted to assess incidence of patients how affects mortality rates after fracture.Methods: Study subjects were Korean National Health Insurance Service-Senior cohort.From population approximately...

10.3346/jkms.2019.34.e36 article EN cc-by-nc Journal of Korean Medical Science 2019-01-01

Previous studies on medical costs in patients with hip fractures have focused incurred for a short period after the injury. However, often had comorbidities before their that would affected even they not sustained fracture. Consequently, these may overestimated associated and did characterize duration of increased adequately. Without knowing this crucial information, it is difficult to craft thoughtful health policy support patients' needs.(1) To compare direct 5 years fracture up injury...

10.1097/corr.0000000000002051 article EN Clinical Orthopaedics and Related Research 2021-11-22

The purpose of this study is to analyze the effect surgical methods on mortality and relative risk patients who underwent internal fixation (IF) or hemiarthroplasty (HA) after being diagnosed as a pertrochanteric fracture over 65 years old in Korean nationwide cohort with single insurance medical system.The National Health Insurance Service-Senior (NHIS-Senior, NHIS-2018-2-111) was used study. eligibility criteria for incident hip were following: (1) first-time admission acute care hospitals...

10.1016/j.asjsur.2019.06.006 article EN cc-by-nc-nd Asian Journal of Surgery 2019-07-16

Preventing severe arthrogenic muscle inhibition (AMI) after knee injury is critical for better prognosis. The novel Sonnery-Cottet classification of AMI enables the evaluation severity but requires validation. This study aimed to investigate electromyography (EMG) patterns leg muscles in examination position from during isometric contraction confirm its validity. We hypothesised that pattern, which characterised by quadriceps and hamstring hypercontraction, would be detectable supine contraction.

10.1186/s13018-024-04949-9 article EN cc-by-nc-nd Journal of Orthopaedic Surgery and Research 2024-08-02

We fabricated films of cubic indium oxide (In2O3) by chemical bath deposition (CBD) for solar water splitting. The were characterized X-ray diffraction analysis, Raman scattering, photoelectron spectroscopy, and scanning electron microscopy, the three-dimensional microstructure In2O3 cubes was elucidated. CBD time varied, to study its effect on growth microcubes. optimal determined be 24 h, corresponding film exhibited a photocurrent density 0.55 mA cm(-2). Finally, stability tested...

10.1002/cphc.201500636 article EN ChemPhysChem 2015-09-02

본 연구에서는 적설심 빈도분석을 수행하기 위해 우리나라에 가장 적합한 확률분포형과 모수추정방법을 선정하였다. 최적확률분포형으로는 Generalized Extreme Value (GEV), 모수추정방법으로는 확률가중모멘트법이 선정되었다. 선정된 적용하여 우리나라 69개 기상관측소별 수행하였다. 통해 관측소별 빈도별 적설심을 산정하였고 적설심과 눈의 단위중량을 이용하여 적설하중을 산정하였다. 산정된 적설하중 중 100년 빈도 ArcGIS 크리깅(Kriging) 기법을 설계적설하중 지도를 작성하였다. 또한, 연구를 적설하중과 건축구조기준 및 해설(2009)에서 제시하고 있는 설계적설하중을 비교하여 기준의 적정성을 평가하였다. 평가결과, 대부분의 지역에서 현재 지상적설하중 상향조정이 요구되었으며 도출된 결과를 반영하여 보다 합리적인 지역별 제안하였다. 제안된 설계적설하중은 폭설에 대비한 전역의 구조물 설계에 활용될 수 있을 것으로 기대된다. In this study,...

10.12652/ksce.2014.34.5.1421 article EN Journal of the Korean Society of Civil Engineers 2014-10-01

There has been increased deconstruction and demolition of reinforced concrete structures due to the aging redevelopment urban areas resulting in generation massive amounts construction. The production volume waste is projected increase rapidly over 100 million tons by 2020. However, high cement paste content, recycled aggregates have low density absorption ratio. They are mostly used for land reclamation purposes with added value instead multiple approaches. This study was performed...

10.3390/ijerph13080769 article EN International Journal of Environmental Research and Public Health 2016-07-29

Abstract Background Pain and kyphotic deformity after spinal fractures can result in a decrease patient’s physical function quality of life. Furthermore, illness, such as respiratory compromise, or mental including depression, may be exacerbated by fracture. Complications caused old age are risk factors for suicide, but studies on these patients rare. Questions/purposes (1) What is the incidence rate death suicide fracture older than 65 years? (2) How much does increase years who have spine...

10.1097/corr.0000000000001414 article EN Clinical Orthopaedics and Related Research 2020-08-04
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