Shin‐Yoon Kim, Do-Heon Kim, Yonggoo Kim, Chang‐Wug Oh, Joo-Chul Ihn,
Total hip arthroplasties with hydroxyapatite coatings have shown encouraging results after early-term followup. We presumed hydroxyapatite-coating on a smooth hemispheric press-fit acetabular cup would enhance bone osseointegration and maintain stability of cup after midterm (minimum 5-year) followup. Sixty-three patients had 70 consecutive total hip arthroplasties. Five patients (eight hips) died from problems unrelated to surgery. The remaining patients (62 hips) were followed up for an average of ...
Tópico(s): Orthopedic Infections and Treatments
2006 - Lippincott Williams & Wilkins | Clinical Orthopaedics and Related Research
Shin‐Yoon Kim, Do-Heon Kim, Chang‐Wug Oh, Poong‐Taek Kim, Joo-Chul Ihn, Sukyoung Kim,
Sixty-seven hips in 63 patients who underwent total hip arthroplasties with the use of the nonmodular cementless acetabular component and alumina-on-polyethylene bearing surface were available for complete clinical and radiographic review at a mean follow-up period of 7 (range 5-9) years. The mean age was 59 years (range 34-75) years. The mean preoperative Harris hip score of 50 points improved to 93 points at final follow-up. One (1.5%) hip required revision for a recurrent dislocation. No component ...
Tópico(s): Orthopedic Infections and Treatments
2005 - Elsevier BV | The Journal of Arthroplasty
Jinhyung Kim, Do-Heon Jeong, Donghwi Lee, Hanmin Jung,
Tópico(s): Web Data Mining and Analysis
2013 - Springer Science+Business Media | Multimedia Tools and Applications
Soon Young Yun, Do Heon Kim, Hae Sang Yoon, Shin Hyung Kim,
Background Insomnia frequently occurs to patients with persistent back pain.By worsening pain, mood, and physical functioning, insomnia could lead to the negative clinical consequences of patients with failed back surgery syndrome (FBSS).This retrospective and cross-sectional study aims to identify the risk factors associated with clinical insomnia in FBSS patients.Methods A total of 194 patients with FBSS, who met the study inclusion criteria, were included in this analysis.The Insomnia Severity ...
Tópico(s): Fibromyalgia and Chronic Fatigue Syndrome Research
2017 - Ivyspring International Publisher | International Journal of Medical Sciences
Byung-Chan Jeon, Do-Heon Kim, Ki‐Young Kwon,
OBJECTIVE AND IMPORTANCE Anterior endoscopic treatment of a huge anterior sacral meningocele, a rare example of spinal dysraphism, is described. CLINICAL PRESENTATION A 43-year-old woman presented with severe headache and fever, increasing abdominal pain, and a several-year history of right lower-extremity radicular pain. She exhibited meningeal irritation signs and Currarino's triad. Lumbosacral myelograms and magnetic resonance imaging scans revealed a huge anterior sacral cyst connected with ...
Tópico(s): Congenital Diaphragmatic Hernia Studies
2003 - Lippincott Williams & Wilkins | Neurosurgery
Do Heon Kim, Choong-Sup Gil, Young‐Ouk Lee,
Tópico(s): Nuclear Materials and Properties
2011 - Springer Science+Business Media | Journal of the Korean Physical Society
Jinhyung Kim, Myunggwon Hwang, Do-Heon Jeong, Hanmin Jung,
Tópico(s): Big Data and Business Intelligence
2012 - Elsevier BV | Expert Systems with Applications
Jin‐Kyeom Kim, Sungwoo Jung, Do‐Heon Kim, Jian Gao, Yun Sik Lee, Hyesung Park, Hyun‐Cheol Song, Jeong Min Baik,
Abstract The paper extensively explores moisture‐induced charge decay in tribo‐materials, addressing charge generation fundamentals and overcoming strategies. Triboelectric effect and contact electrification models are discussed, with corona charging and hydro‐charging as effective charge generation methods. Moisture‐induced adverse effects, such as swelling and charge dissipation, are outlined. Electronegativity and dangling bonds' roles in charge traps are explored, along with the impact of functionalities ...
Tópico(s): Textile materials and evaluations
2024 - Wiley | Advanced Energy Materials
Do Heon Kim, Hangbok Choi, Won Sik Yang, Jong Kyung Kim,
The effect of DUPIC fuel composition heterogeneity on CANDU core performance was assessed for three candidate DUPIC fuel options: the fissile content adjustment method, reactivity control by slightly enriched and depleted uranium, and reactivity control by natural uranium. The fissile content adjustment method produces DUPIC fuel of fixed 235U and 239Pu contents, while the reactivity control method produces DUPIC fuel of uniform reactivity at the fresh condition. To assess the uncertainty of the ...
Tópico(s): Radioactive element chemistry and processing
2001 - Taylor & Francis | Nuclear Science and Engineering
Sa-Kwang Song, Do-Heon Jeong, Jinhyung Kim, Myunggwon Hwang, Jangwon Gim, Hanming Jung,
As the amount of data increases enormously, business analytics such as descriptive, predictive, and prescriptive analytics is one of the most important topics for better decision making especially for CTO or CIO in corporate. Prescriptive analytics shows fundamental difference with descriptive analytics and predictive analytics in that it requires high-value alternative actions or decisions to achieve a given goal. However, only a few studies have been introduced since it is a emerging technology. ...
Tópico(s): Big Data and Business Intelligence
2014 - Springer Science+Business Media | Lecture notes in electrical engineering
Shin‐Yoon Kim, Yong Gu Kim, Jun Young Yeo, Do Heon Kim, Joo Chul Ihn,
Purpose: To evaluate the short-term clinical and radiographic results associated with use of the ceramicon-ceramic articulation uncemented total hip arthroplasty (THA) in patients less than fifty years old with osteonecrosis of femoral head. Materials and Methods: Sixty-eight THAs with use of the ceramic-on-ceramic articulation were performed in fifty-nine patients who were younger than fifty years old with the implantation of an uncemented plasma coated Plasma cup and Bicontact stem. All patients ...
Tópico(s): Hip disorders and treatments
2004 - Korean Orthopaedic Association | The Journal of the Korean Orthopaedic Association
Do Heon Kim, Choong-Sup Gil, Young‐Ouk Lee,
Background The current status of ACE format MCNP/MCNPX libraries by NDC of KAERI is presented with a short description of each library. Materials and Methods Validation calculations with recent nuclear data evaluations ENDF/B-VII.0, ENDF/B-VII.1, JEFF-3.2, and JENDL-4.0 have been carried out by the MCNP5 code for 119 criticality benchmark problems taken from the expanded criticality validation suite supplied by LANL. The overall performances of the ACE format KN-libraries have been analyzed in comparison ...
Tópico(s): Radiation Detection and Scintillator Technologies
2016 - | Journal of Radiation Protection and Research
Oh-Yun Kwon, Won-Hwee Lee, SungDae Jung, Si‐Hyun Kim, Do-Heon Jung,
This study compared the stability of the cervical spine according to the presence of neck pain and deep neck flexor performance. Thirty subjects with neck pain, and thirty subjects without neck pain were recruited for this study. The Cranio-cervical flexion (CCF) test was applied using a pressure biofeedback unit to classify the subjects into four subgroups; no cervical pain and good deep neck flexor performance (NG group), no cervical pain and poor deep neck flexor performance (NP group), cervical ...
Tópico(s): Shoulder Injury and Treatment
2011 - | Physical Therapy Korea
Min-Seong Kim, Jeong Gyun Kim, Sang-Chul Kwon, Do Heon Jeong, Seong Lee, Hyo-Tae Jeong, Shi-Hoon Choi,
In this study, sound workpieces made of interstitial-free (IF) steel were manufactured by performing up to 4 cycles without the occurrence of forging defects via the use of a new multi-axis diagonal forging (MADF-ver2) process at room temperature. The microstructure that was developed in the deformed specimens was experimentally analyzed and compared. As the number of cycles increased, the average grain size gradually decreased, and both the average misorientation angle and the fraction of high-angle ...
Tópico(s): Advanced materials and composites
2022 - Elsevier BV | Materials Science and Engineering A
Do Heon Kim, Jong Kyung Kim, Hangbok Choi,
A generalized perturbation program GENOVA has been developed for the purpose of various applications to Canada deuterium uranium (CANDU) reactor physics analyses. The program was developed under the framework of CANDU physics design and analysis code RFSP. The generalized perturbation method was implemented to estimate the power distribution in conjunction with the zone controller level. The numerical algorithm of the generalized perturbation method was verified by a simple 2×2 node problem. The ...
Tópico(s): Nuclear and radioactivity studies
2001 - Elsevier BV | Annals of Nuclear Energy
Tae‐Hong Kim, Mi-Nyeong Hwang, Young‐Min Kim, Do-Heon Jeong,
Tópico(s): Data Mining Algorithms and Applications
2016 - Springer Science+Business Media | Wireless Personal Communications
Chang‐Wug Oh, Hee Soo Kyung, Poong Taek Kim, Il Hyung Park, Do Heon Kim,
Tópico(s): Alkaline Phosphatase Research Studies
1998 - Korean Orthopaedic Association | The Journal of the Korean Orthopaedic Association
Seop Hur, Jung-Taek Kim, Do Heon Kim, Anil Kumar Khambampati, Kyung Youn Kim,
The water level inside the core provides information about the reactor’s safe operation. In severe accidents (SA), the water level information inside the reactor core may not be available as the conventional reactor devices for water level measurement are out of range. The gamma radiation collected from the detectors placed outside the reactor vessel is axially affected by the water level and fuel distribution present inside the core. This study predicts the water level in the core from the radiation ...
Tópico(s): Geophysical Methods and Applications
2021 - Elsevier BV | Annals of Nuclear Energy
Do‐Heon Kim, Jin‐Kyeom Kim, Sung Yeol Choi, Ya Yang, Hyun‐Cheol Song, Hyesung Park, Minseob Shim, Jeong Min Baik,
Abstract Reducing the impedance of a triboelectric nanogenerator (TENG) without power loss is crucial for enhancing its energy conversion efficiency and overall performance. In this paper, a novel signal management structure, based on a newly designed sliding‐mode TENG, aimed at effectively reducing impedance by converting narrow, instantaneous signals into broader ones is presented. This transformation is accomplished by adding a grounded electrode connected to a high‐inductive inductor and fine‐ ...
Tópico(s): Supercapacitor Materials and Fabrication
2024 - Wiley | Advanced Energy Materials
An optimum refueling simulation method was developed for application to a Canada deuterium uranium 713-MW(electric) (CANDU-6) reactor. The objective of the optimization was to maintain the operating range of the zone controller unit (ZCU) water level so that the reference zone power distribution is reproduced following the refueling operation. The zone controller level on the refueling operation was estimated by the generalized perturbation method, which provides sensitivities of the zone power to ...
Tópico(s): Chemical Synthesis and Characterization
2005 - Taylor & Francis | Nuclear Science and Engineering
Hyeong Il Kim, Do Heon Kim, Young‐Ouk Lee,
The evaluation of neutron production cross section is presented for tungsten which is increasingly considered as a prime candidate of plasma facing materials in fusion reactors. The energy and/or angular dependent neutron spectra from existing libraries such as ENDF/B-VII, JEFF-3.1 and JENDL-3.3 failed to reproduce the measured data available for tungsten isotopes. Moreover, the integral tests of neutron production from these libraries showed remarkable discrepancies with leakage neutron measurements ...
Tópico(s): Fusion materials and technologies
2008 - Taylor & Francis | Journal of Nuclear Science and Technology
Do Heon Kim, Choong-Sup Gil, Young‐Ouk Lee,
Nuclear data validations through the fusion neutronics shielding benchmarks for the OKTAVIAN nickel, iron, aluminum, silicon, and tungsten spheres were carried out with the MCNPX-2.5.0 code. The measured neutron and/or gamma-ray leakage spectra were compared with the calculation results using the ACE format libraries processed based on ENDF/B-VII.0, JEFF-3.1, JENDL-3.3, and FENDL-2.1. These benchmarks were suitable for the nuclear data sensitivity analyses through comparisons of the major reaction ...
Tópico(s): Nuclear Materials and Properties
2008 - Taylor & Francis | Journal of Nuclear Science and Technology
Choong-Sup Gil, Do Heon Kim, Jiho Kim,
Tópico(s): Ion-surface interactions and analysis
2007 - Springer Science+Business Media | Journal of the Korean Physical Society
Ngoc-Thinh Quach, Eel-Hwan Kim, Do-Heon Lee, Ho-Chan Kim,
This paper presents a control method of the modular multilevel converter - high-voltage direct current (MMC-HVDC) system to regulate grid voltage on the basis of the Jeju Island power system. In this case, the MMC-HVDC system is controlled as a static synchronous compensator (Statcom) to exchange the reactive power with the power grid. The operation of the MMC-HVDC system is verified by using the PSCAD/EMTDC simulation program. The Jeju Island power system is first established on the basis of the parameters ...
Tópico(s): Railway Systems and Energy Efficiency
2014 - | The Transactions of the Korean Institute of Power Electronics
A subcritical multiplying assembly (SMA) was employed to improve the relatively low neutron fluxes of a 252Cf source, and the feasibility of using it as the neutron source for boron neutron capture therapy was explored. The Monte Carlo code MCNP was used to evaluate the effective multiplication factor keff of the entire system, the intensities and percentages of the epithermal neutron flux at the patient-end surface of the beam, and dosimetric properties of the beam in the elliptical brain phantom. ...
Tópico(s): Boron Compounds in Chemistry
1998 - Taylor & Francis | Nuclear Technology
Chang‐Wug Oh, Hee Soo Kyung, Do Heon Kim, Il Hyung Park, Poong Taek Kim, Joo Chul Ihn, Yeon Ki Woo, Jung Yeop Lee,
Tópico(s): Artificial Intelligence in Healthcare and Education
2004 - | Journal of the Korean Fracture Society
Two species of the genus Burmoniscus Collinge, 1914 (Philosciidae), B. philippinensis and B. palawanensis from Palawan Island, the Philippines are described as new. In the family Philosciidae, only a single species, Pseudo‐typhloscia alba (Dollfus, 1898), has been recorded from the Philippines. Two species of the genus Burmoniscus Collinge, 1914 (Philosciidae), B. philippinensis and B. palawanensis from Palawan Island, the Philippines are described as new. B. philippinensis is distinguished from its ...
Tópico(s): Aquatic Ecosystems and Phytoplankton Dynamics
2002 - Taylor & Francis | Korean Journal of Biological Sciences
Tópico(s): Invertebrate Taxonomy and Ecology
1987 - Korean Society of Systematic Zoology | Animal Systematics Evolution and Diversity
Do-Heon Lee, Su-Kyung Yoon, Jung-Geun Kim, Charles Weems, Shin‐Dug Kim,
Current high-performance computer systems utilize a memory hierarchy of on-chip cache, main memory, and secondary storage due to differences in device characteristics. Limiting the amount of main memory causes page swap operations and duplicates data between the main memory and the storage device. The characteristics of next-generation memory, such as nonvolatility, byte addressability, and scaling to greater capacity, can be used to solve these problems. Simple replacement of secondary storage ...
Tópico(s): Cloud Computing and Resource Management
2015 - Association for Computing Machinery | ACM Transactions on Architecture and Code Optimization
Do-Heon Gu, Cheolsoo Eo, Seung-A Hwangbo, S.C. Ha, Jin Hong Kim, Hyoyun Kim, Chae-Soon Lee, In Deuk Seo, Young Duck Yun, Woulwoo Lee, Hyeongju Choi, Jangwoo Kim, Jun Lim, Seungyu Rah, Jeong‐Sun Kim, Jie‐Oh Lee, Yeon‐Gil Kim, Suk-Youl Park,
BL-11C, a new protein crystallography beamline, is an in-vacuum undulator-based microfocus beamline used for macromolecular crystallography at the Pohang Accelerator Laboratory and it was made available to users in June 2017. The beamline is energy tunable in the range 5.0-20 keV to support conventional single- and multi-wavelength anomalous-dispersion experiments against a wide range of heavy metals. At the standard working energy of 12.659 keV, the monochromated beam is focused to 4.1 µm (V) × 8. ...
Tópico(s): Advanced X-ray Imaging Techniques
2021 - Wiley | Journal of Synchrotron Radiation