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| WoS | SCOPUS | Document Type | Document Title | Abstract | Authors | Affiliation | ResearcherID (WoS) | AuthorsID (SCOPUS) | Author Email(s) | Journal Name | JCR Abbreviation | ISSN | eISSN | Volume | Issue | WoS Edition | WoS Category | JCR Year | IF | JCR (%) | FWCI | FWCI Update Date | WoS Citation | SCOPUS Citation | Keywords (WoS) | KeywordsPlus (WoS) | Keywords (SCOPUS) | KeywordsPlus (SCOPUS) | Language | Publication Stage | Publication Year | Publication Date | DOI | JCR Link | DOI Link | WOS Link | SCOPUS Link |
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| ○ | ○ | Article | Evaluation of Output Performance of Flexible Thermoelectric Energy Harvester Made of Organic-Inorganic Thermoelectric Films Based on PEDOT:PSS and PVDF Matrix | Thermoelectric (TE) energy harvesting, which converts available thermal resources into electrical energy, is attracting significant attention, as it facilitates wireless and self-powered electronics. Recently, as demand for portable/wearable electronic devices and sensors increases, organic-inorganic TE films with polymeric matrix are being studied to realize flexible thermoelectric energy harvesters (f-TEHs). Here, we developed flexible organic-inorganic TE films with p-type Bi0.5Sb1.5Te3 powder and polymeric matrices such as poly(3,4-eethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) and poly (vinylidene fluoride) (PVDF). The fabricated TE films with a PEDOT:PSS matrix and 1 wt% of multi-walled carbon nanotube (MWCNT) exhibited a power factor value of 3.96 mu W center dot m-1 center dot K-2 which is about 2.8 times higher than that of PVDF-based TE film. We also fabricated f-TEHs using both types of TE films and investigated the TE output performance. The f-TEH made of PEDOT:PSS-based TE films harvested the maximum load voltage of 3.4 mV, with a load current of 17.4 mu A, and output power of 15.7 nW at a temperature difference of 25 K, whereas the f-TEH with PVDF-based TE films generated values of 0.6 mV, 3.3 mu A, and 0.54 nW. This study will broaden the fields of the research on methods to improve TE efficiency and the development of flexible organic-inorganic TE films and f-TEH. | Na, Yujin; Park, Kwi-Il | Kyungpook Natl Univ, Sch Mat Sci & Engn, Daegu 41566, South Korea | Na, Yujin/LFT-4103-2024; Park, Kwiil/LKN-9445-2024 | 57566141800; 35280874200 | kipark@knu.ac.kr; | KOREAN JOURNAL OF MATERIALS RESEARCH | KOR J MATER RES | 1225-0562 | 2287-7258 | 33 | 7 | ESCI | MATERIALS SCIENCE, MULTIDISCIPLINARY | 2023 | 0.3 | 98.5 | 0.1 | 2025-06-25 | 1 | 1 | thermoelectric; flexible; energy harvester; thermoelectric films; PEDOT; PSS | THIN-FILM | energy harvester; flexible; PEDOT:PSS; thermoelectric; thermoelectric films | Antimony compounds; Bismuth compounds; Carbon films; Conducting polymers; Fluorine compounds; Multiwalled carbon nanotubes (MWCN); Styrene; Tellurium compounds; Thin films; Energy Harvester; Flexible; Organic/inorganic; PEDOT/PSS; Poly(3,4-eethylenedioxythiophene):poly(styrene sulphonate); Poly(styrene sulfonate); Poly(vinylidene fluoride); Thermoelectric; Thermoelectric energy; Thermoelectric film; Energy harvesting | English | 2023 | 2023-07 | 10.3740/mrsk.2023.33.7.295 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | Article | Expressions of Magnetic vector and Magnetic Gradient Tensor due to an Elliptical Cylinder | In this study, the expressions of magnetic vector and magnetic gradient tensor due to an elliptical cylinder were derived. Igneous intrusions and kimberlite structures are often shaped like elliptical cylinders with axial symmetry and different radii in the strike and perpendicular directions. The expressions of magnetic fields due to this elliptical cylinder were derived from the Poisson relation, which includes the direction of magnetization in the gravity gradient tensor. The magnetic gradient tensor due to an elliptical cylinder is derived by differentiating the magnetic fields. This method involves obtaining a total of 10 triple derivative functions acquired by differentiating the gravitational potential of the elliptical cylinder three times in each axis direction. As the order of differentiation and integration can be exchanged, the magnetic gradient tensor was derived by differentiating the gravitational potential of the elliptical cylinder three times in each direction, followed by integration in the depth direction. The remaining double integration was converted to a complex line integral along the closed boundary curve of the elliptical cylinder in the complex plane. The expressions of the magnetic field and magnetic gradient tensor derived from the complex line integral in the complex plane were shown to be perfectly consistent with those of the circular cylinder derived by the Lipschitz-Hankel integral. | Rim, Hyoungrea; Eom, Jooyoung | Pusan Natl Univ, Dept Earth Sci Educ, Busan, South Korea; Kyungpook Natl Univ, Dept Earth Sci Educ, Daegu, South Korea | Eom, Jooyoung/KBC-4439-2024 | eomjy@knu.ac.kr; | GEOPHYSICS AND GEOPHYSICAL EXPLORATION | GEOPHYS GEOPHYS EXPL | 1229-1064 | 2384-051X | 26 | 2 | ESCI | GEOCHEMISTRY & GEOPHYSICS | 2023 | 0.1 | 98.5 | 1 | magnetic; magnetic gradient tensor; elliptic cylinder; complex variable | CLOSED-FORM EXPRESSIONS; JOINT INVERSION; GRAVITY; COMPUTATION | English | 2023 | 2023 | 10.7582/gge.2023.26.2.077 | 바로가기 | 바로가기 | 바로가기 | |||||||||
| ○ | Article | Reliability Analysis of an Interior Permanent Magnet Synchronous Motor with Consideration of Insulation Aging of Stator Windings | In this paper, an efficient reliability analysis technique for the performance function of an electric motor is taking into account the insulation deterioration of stator windings as well as the uncertainty due to manufacturing tolerance. An insulation resistance formula is first derived to predict accurate insulation degradation over operating temperature and time, and then a precise numerical simulation model for a motor is constructed by utilizing the electromagnetic-thermal analysis tool linked to an equivalent circuit model. Based on the independence between probability design variables and time along with the simulation model, complex time-varying reliability analysis is converted into time-invariant reliability analysis. To examine the validity of the proposed method, the probability distribution and reliability of a performance function for an interior-type permanent magnet synchronous motor due to the manufacturing tolerance included in design variables are compared with and without consideration of insulation deterioration. | Mun, Jaegyeong; Kim, Dong-Hun | Kyungpook Natl Univ, Dept Elect Engn, Daegu 41566, South Korea | dh29kim@ee.knu.ac.kr; | JOURNAL OF THE KOREAN MAGNETICS SOCIETY | J KOREAN MAGN SOC | 1598-5385 | 2233-6648 | 33 | 6 | ESCI | PHYSICS, APPLIED | 2023 | 0.2 | 99.2 | 0 | electromagnetics; heat; insulation aging; motor; reliability analysis | Korean | 2023 | 2023-12 | 10.4283/jkms.2023.33.6.237 | 바로가기 | 바로가기 | 바로가기 | |||||||||||
| ○ | Article | Cyclotron Resonance of the Wannier-Landau Transition Landau Transition System Based on System Based on the Ensemble Projection Technique | We study the linear-nonlinear quantum transport theory of Wannier-Landau transition system in the confinement of electrons by a square well confinement potential. Fund se the projected Liouville equation method withe ensemble density projection technique. We select the dynamic value under a linearly oscillatory external field. We derive the dynamic value formula and the memory factor functions in three electron phonon coupling systems and electron impurity coupling systems of two transition types, the intra-band transitions and inter-band transitions. We obtain results that can be applied directly to numerical analyses. For simple example of application, we analyze the absorption power and line-widths of ZnO, through the numerical calculation of the theoretical result in the Landau system. | Park, Jung-Il | Kyungpook Natl Univ, Dept Phys, Nanophys & Technol Lab, Daegu 41566, South Korea | jipark@knu.ac.kr; | JOURNAL OF THE KOREAN MAGNETIC RESONANCE SOCIETY | J KOREAN MAGN RESON | 1226-6531 | 27 | 4 | ESCI | BIOCHEMICAL RESEARCH METHODS | 2023 | 0.4 | 99.4 | 0 | Cyclotron resonance; Wannier-Landau transition; lineline-widths; absorption power; memory factor function; electron -phonon interaction | DOPED LINBO3; SURFACE | English | 2023 | 2023 | 10.6564/jkmrs.2023.27.4.028 | 바로가기 | 바로가기 | 바로가기 | |||||||||||
| ○ | Article | (sic)(sic)(sic)(sic)(sic)(sic)(sic) (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic) (sic)(sic)(sic)(sic)(sic) (sic)(sic)(sic) (sic)(sic)(sic) | Purpose Metabolic abnormalities in hepatic encephalopathy (HE) cause brain edema or demyelinating disease, resulting in symmetric regional cerebral edema (SRCE) on MRI. This study aimed to investigate the usefulness of the clustering analysis of SRCE in predicting the development of brain failure. Materials and Methods MR findings and clinical data of 98 consecutive patients with HE were retrospectively analyzed. The correlation between the 12 regions of SRCE was calculated using the phi ( phi) coefficient, and the pattern was classified using hierarchical clustering using the phi 2 distance measure and Ward's method. The classified patterns of SRCE were correlated with clinical parameters such as the model for end -stage liver disease (MELD) score and HE grade. Results Significant associations were found between 22 pairs of regions of interest, including the red nucleus and corpus callosum (4) = 0.81, p < 0.001), crus cerebri and red nucleus (4) = 0.72, p < 0.001), and red nucleus and dentate nucleus (4) = 0.66, p < 0.001). After hierarchical clustering, 24 cases were classified into Group I, 35 into Group II, and 39 into Group III. Group III had a higher MELD score ( p = 0.04) and HE grade ( p = 0.002) than Group I. Conclusion Our study demonstrates that the SRCE patterns can be useful in predicting hepatic preservation and the occurrence of cerebral failure in HE. | Lim, Chun Geun; Lee, Hui Joong | Kyungpook Natl Univ Hosp, Dept Radiol, 130 Dongdeok Ro, Daegu, South Korea; Kyungpook Natl Univ, Sch Med, Dept Radiol, Daegu, South Korea | LIM, CHUN GEUN/GXH-5232-2022 | leehuijoong@knu.ac.kr; | JOURNAL OF THE KOREAN SOCIETY OF RADIOLOGY | 2951-0805 | 85 | 2 | 2 | terms Hepatic Encephalopathy; Cerebral Edema; Magnetic Resonance Image | CHRONIC HEPATIC-ENCEPHALOPATHY; EXTRAPONTINE MYELINOLYSIS; WHITE-MATTER; DISEASE; CIRRHOSIS; FAILURE; LESIONS; MANAGEMENT; GLUTAMINE; BRAIN | English | 2023 | 2023-03 | 10.3348/jksr.2023.0012 | 바로가기 | 바로가기 | |||||||||||||||||
| ○ | Conference paper | 3D Mapping of Indoor Parking Space Using Edge Consistency Census Transform Stereo Odometry | In this paper, we propose a real-time 3D mapping system for indoor parking ramps and spaces. Visual odometry is calculated by applying the proposed Edge Consistency Census Transform (ECCT) stereo matching method. ECCT works strongly in repeated patterns and reduces drift errors in the vertical direction of the ground caused by Kanade-Lucas-Tomasi stereo matching of VINS-FUSION algorithm. We propose a mobile mapping system that uses a stereo camera and 2D lidar for data set acquisition. The parking ramp and spaces dataset are obtained using the mobile mapping system and are reconstructed using the proposed system. The proposed system performs the 3D mapping of the parking ramp and spaces dataset that is obtained using the mobile mapping system. We present the error of the normal vector with respect to the ground of the parking space as a quantitative evaluation for performance comparison with the previous method. Also, we present 3D mapping results as qualitative results. © 2022 by SCITEPRESS-Science and Technology Publications, Lda. | Lee, Junesuk; Park, Soon-Yong | School of Electronic and Electrical Engineering, Kyungpook National University, Daegu, South Korea; School of Electronic and Electrical Engineering, Kyungpook National University, Daegu, South Korea | 57210786619; 7501834063 | Proceedings of the International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications | 2184-5921 | 5 | 0 | 2025-06-25 | 0 | 3D Mapping; 3D Reconstruction; 3D Scanning; Parking Ramp; Parking Space; Visual Odometry | English | Final | 2023 | 10.5220/0011789100003417 | 바로가기 | 바로가기 | ||||||||||||||||||
| ○ | ○ | Proceedings Paper | 3D Reconstruction from Multi-view Google Earth Satellite Stereo Images by Generating Virtual RPC based on 3D Homography-based Georeferencing | In this paper, we propose a method for performing 3D reconstruction by generating virtual RPC parameters from multi-view satellite stereo images provided by Google Earth (GE) software. In the multi-view stereo (MVS) image in a general case, after the pose and parameters of the camera are estimated, a dense 3D surface can be reconstructed. However, in the case of satellite images, it is not easy to obtain the original images with pose parameters of an area of interest. In the case of GE software, which can obtain images across the globe, the images provided are georeferenced and modified to fit the ground control point (GCP), so there is no camera model to explain the projection relationship. Therefore, the purpose of the proposed method is to perform 3D reconstruction by generating virtual camera parameters in modified satellite images obtained from GE software. In the proposed method, satellite images obtained from GE are estimated to be pinhole images using structure from motion (SfM) for initial reconstruction. After initial reconstruction, the 3D model is transformed from a distorted hexahedral space formed along a pixel ray to a UTM coordinate system metric space through a 3D homography-based georeferencing. A virtual rational polynomial camera (RPC) parameter is calculated through the satellite images and the 3D interspace correspondence point of UTM coordinates. The result is generated by virtual RPC and the MVS method using the RPC model. The reconstructed DSM using virtual RPC is improved over the initial reconstruction of the proposed process, and error measurement in the area with GT obtained significant results with an average of 1.366m on an MAE method. | Seo, D. U.; Park, S. Y. | Kyungpook Natl Univ, Grad Sch Elect & Elect Engn, Daegu 41566, South Korea | Park, Soon-Yong/HGV-2374-2022 | 58266434300; 7501834063 | sseodw@naver.com;sypark@knu.ac.kr; | GEOSPATIAL WEEK 2023, VOL. 48-1 | 1682-1750 | 2194-9034 | 0.46 | 2025-06-25 | 1 | 1 | Multi-view stereo matching; Multi-date satellite images; RPC Generating; Georeferencing; Google Earth | Georeferencing; Google Earth; Multi-date satellite images; Multi-view stereo matching; RPC Generating | 3D modeling; Image reconstruction; Pinhole cameras; Rock mechanics; Satellites; Three dimensional computer graphics; 3D reconstruction; Georeferencing; Google earths; Multi-date satellite image; Multi-view stereo; Multi-view stereo matching; Rational polynomial; Rational polynomial camera generating; Satellite images; Stereo-matching; Stereo image processing | English | 2023 | 2023 | 10.5194/isprs-archives-xlviii-1-w2-2023-1075-2023 | 바로가기 | 바로가기 | 바로가기 | |||||||||||
| ○ | Conference paper | 4-Phase Series-capacitor Buck Converter | The series-capacitor (SC) converter is an attractive choice due to its capacity for achieving a high step-down conversion ratio, reducing voltage stress on switching devices, and maintaining inherent current balance. To enhance power capacity and minimize output current fluctuations, a multi-phase series-capacitor configuration was introduced. However, as the number of phases increases, the operational range of the converter proportionally decreases by a factor of n, where n represents the number of phases. Consequently, the suitability of the multi-phase SC topology diminishes. This study introduces a 4-phase series-capacitor (4P-SC) converter that extends the conventional SC structure to attain higher output power. Moreover, the proposed converter reduces output current ripple and requires only half the number of current sensors compared to the conventional 4-phase buck converter (4P-IBC). In this paper, the proposed structure is validated by simulation. © 2023 IEEE. | Nguyen, Chan Viet; Cha, Honnyong; Bui, Van-Dai; Bang Pham, Tam Nguyen; Ho, Phuong Thanh; Phan, Quoc Dung | Ho Chi Minh City University of Technology, Faculty of Electrical & Electronics Engineering, Ho Chi Minh City, Viet Nam; Kyungpook National University, School of Energy Engineering, Daegu City, South Korea; Thuyloi University, Faculty of Electrical & Electronics Engineering, Hanoi, Viet Nam; Thu Duc Power Company, Department of Technical & Safety, Thu Duc City, Viet Nam; Ho Chi Minh City University of Technology, Faculty of Electrical & Electronics Engineering, Ho Chi Minh City, Viet Nam; Ho Chi Minh City University of Technology, Faculty of Electrical & Electronics Engineering, Ho Chi Minh City, Viet Nam | 57210827612; 24450248400; 57221961296; 58743394300; 58743287100; 36802548300 | ncviet@hcmut.edu.vn; | Proceedings - 2023 International Symposium on Electrical and Electronics Engineering, ISEE 2023 | 1.72 | 2025-06-25 | 3 | Asymmetrical PWM strategy; Current balancing; Series-capacitor converter | Buck converter; Power electronics; Asymmetrical PWM; Asymmetrical PWM strategy; Buck converters; Conversion ratio; Current balancing; Output current; PWM strategy; Series capacitors; Series-capacitor converter; Step-down conversion; Pulse width modulation | English | Final | 2023 | 10.1109/isee59483.2023.10299865 | 바로가기 | 바로가기 | ||||||||||||||||||
| ○ | Conference paper | A 19.8W/29.6W Hybrid Step-Up/Down DC-DC Converter with 97.2% Peak Efficiency for 1-Cell/2-Cell Battery Charger Applications | This paper presents an inductor-first hybrid step-up/down DC-DC converter for one-and two-cell battery chargers. The proposed architecture can improve efficiency by lowering inductor current as well as less charge sharing loss of the flying capacitor. The battery can be isolated from the input without using extra reverse blocking device which is necessary for the charger application. The design also can replace the discrete inductor with the USB cable inductance and avoid heat loss from the mobile device. The proposed converter has been implemented in a 180nm BCDMOS process. The peak efficiency is 96.9% at 5V input for one-cell, and 97.2% at 9V input for two-cell battery. The measured maximum output power is 19.8W and 29.6W for one-cell and two-cell battery applications, respectively. The onboard peak efficiency is 96% employing the USB cable. © 2023 JSAP. | Yeo, Seongil; Hyeon, Uyong; Kim, Mingyeong; Kim, Jusung; Cho, Kunhee | Kyungpook National University, Daegu, South Korea; Kyungpook National University, Daegu, South Korea; Kyungpook National University, Daegu, South Korea; Hanbat National University, Daejeon, South Korea; Kyungpook National University, Daegu, South Korea | 58531199600; 58531794900; 58531795000; 36466600600; 57069360800 | Digest of Technical Papers - Symposium on VLSI Technology | 0743-1562 | 2023-June | 3.04 | 2025-06-25 | 5 | Boost converter; Charging (batteries); Efficiency; Secondary batteries; Battery chargers; Cable inductance; Charge sharing; Flying capacitor; Inductor currents; Maximum output power; Peak efficiency; Proposed architectures; Reverse blocking device; USB cables; Electric inductors | English | Final | 2023 | 10.23919/vlsitechnologyandcir57934.2023.10185209 | 바로가기 | 바로가기 | ||||||||||||||||||
| ○ | Article | A Base Station Placement Method For High-precision Positioning Using Reinforcement Learning | Although location-based services (LBS) are available in various applications, achieving higher positioning performance is crucial, especially in an unmanned robot environment. Base station (BS) placement is a fundamental factor that significantly affects positioning performance. This study introduces a BS placement technique using a deep deterministic policy gradient (DDPG). We implemented symmetrical initial BS placement within the designated environment. In addition, we developed a value function based on the received signal strength indicator and dilution of precision for DDPG. Thus, our findings indicate an enhancement in positioning performance by approximately 12.5%. © ICROS 2023. | Hwang, Jun Gyu; Park, Joon Goo | School of Electronic and Electrical Engineering, Kyungpook National University, South Korea; School of Electronic and Electrical Engineering, Kyungpook National University, South Korea | 55816210200; 24329712800 | jgpark@knu.ac.kr; | Journal of Institute of Control, Robotics and Systems | 1976-5622 | 29 | 11 | 0.14 | 2025-06-25 | 1 | BS placement; reinforcement learning | Base stations; Location based services; Telecommunication services; Base station placement; Deterministics; High precision positioning; Location-based services; Placement methods; Policy gradient; Positioning performance; Reinforcement learnings; Robot environment; Unmanned robots; Reinforcement learning | Korean | Final | 2023 | 10.5302/j.icros.2023.23.0113 | 바로가기 | 바로가기 | |||||||||||||||
| ○ | Conference paper | A Bi-directional Switch Based High Step-Up Resonant Converter with Voltage-Quadrupler | This paper introduces a novel bi-directional switch converter that leverages a voltage quadrupler circuit and a resonant topology to achieve both high voltage gain and high efficiency. Utilizing a voltage quadrupler rectifier allows the proposed converter to perform a high voltage step-up characteristic, while minimizing the reliance on a high turns-ratio transformer. By incorporating a bi-directional switch, the circuit's voltage gain is enhanced and the output voltage can be adjusted by altering the duty ratio of the switch. The series-resonant tank provides soft-switching operation resulting, lower switching loss for switches and diodes. A 400-W prototype is presented to validate the performance of the introduced high step-up converter. © 2023 The Korean Institute of Power Electronics. | Yea, Jaeseob; Jang, Hyeonjun; Kim, Yeonho; Han, Byeongcheol | Kyungpook National University, School of Electronic and Electrical Engineering, Daegu, South Korea; Kyungpook National University, School of Electronic and Electrical Engineering, Daegu, South Korea; Kyungpook National University, School of Electronic and Electrical Engineering, Daegu, South Korea; Kyungpook National University, School of Electronic and Electrical Engineering, Daegu, South Korea | 58572477000; 58572570000; 58572570100; 57188622752 | ICPE 2023-ECCE Asia - 11th International Conference on Power Electronics - ECCE Asia: Green World with Power Electronics | 0 | 2025-06-25 | 0 | bi-directional switch; high step-up; Series resonant converter; voltage quadruple rectifier | Boost converter; Gain measurement; Power electronics; Rectifying circuits; Bidirectional switch; Gain efficiency; High step-ups; High voltage gain; High-voltages; Higher efficiency; Resonant converters; Series resonant converters; Switch converter; Voltage quadruple rectifier; Electric rectifiers | English | Final | 2023 | 10.23919/icpe2023-ecceasia54778.2023.10213480 | 바로가기 | 바로가기 | |||||||||||||||||||
| ○ | Article | A Case of Chondromyxoid Fibroma Observed in the Nasal Cavity | Chondromyxoid fibroma (CMF) is an extremely rare, benign cartilaginous tumor found in the craniofacial region. It is often misdiagnosed due to its rare occurrence in the nasal and paranasal sinus; moreover, it has similarities with other cartilaginous tumors, showing the same radiologic and histopathologic features. A 62-year-old female consulted our clinic with the chief complaint of a left nasolabial mass of one-month history. The mass was located in the nasal cavity: from there it extended anteriorly to the anterior nasal spine, posteriorly to the end of the hard palate, and laterally to the maxillary sinus. The nasal septum was deviated to the right side due to the mass effect. Complete removal of the mass was conducted via the modified endoscopic Denker’s approach, and the diagnosis of CMF was established. During the 36-month follow-up, no recurrence was observed. Copyright© 2023 Korean Society of Otorhinolaryngology-Head and Neck Surgery. | Oh, Minji; Jeong, Ji Yun; Kim, Jae-Hui; Heo, Sung Jae | Department of Otorhinolaryngology-Head and Neck Surgery, School of Medicine, Kyungpook National University, Daegu, South Korea; Department of Pathology, School of Medicine, Kyungpook National University, Daegu, South Korea; Department of Pathology, School of Medicine, Kyungpook National University, Daegu, South Korea; Department of Otorhinolaryngology-Head and Neck Surgery, School of Medicine, Kyungpook National University, Daegu, South Korea | 57877906400; 57205472984; 57416959900; 55822906000 | blueskyhsj@hanmail.net; | Korean Journal of Otorhinolaryngology-Head and Neck Surgery | 2092-6529 | 66 | 12 | 0 | 2025-06-25 | 0 | Keywords Fibroma; Nasal cavity; Nonodontogenic cyst | English | Final | 2023 | 10.3342/kjorl-hns.2023.00808 | 바로가기 | 바로가기 | ||||||||||||||||
| ○ | Article | A Case of Interstitial Pneumonia in Patients with Psoriasis Treated with Methotrexate; [Methotrexate로 치료받은 건선 환자에서의 간질성 폐렴 1예] | Methotrexate (MTX) is commonly employed in the management of chronic inflammatory skin diseases. We report the case of a 73-year-old man who presented with a persistent cough lasting for 1 month. He had an 11-year history of psoriasis and had received MTX (10.0 mg/wk) over the past 21 months. High-resolution chest computed tomography revealed diffuse ground-glass opacities and bronchiectasis affecting both lung fields. Based on clinical and radiological assessments, the patient was diagnosed with MTX-induced interstitial pneumonia. Notably, significant clinical and radiological improvement was observed 1 month after the discontinuation of MTX and corticosteroid administration. Although some reports have demonstrated lung toxicity in patients receiving high-dose MTX therapy, cases of adverse pulmonary effects following low-dose treatment in patients with psoriasis are rare. This case report underscores the rarity of interstitial pneumonia in a patient with psoriasis undergoing MTX treatment in Korea. © 2023 Korean Dermatological Association. All rights reserved. | Lee, Seung Soo; Ha, Dae-Lyong; Kim, Jun Young; Jang, Yong Hyun; Lee, Weon Ju; Lee, Seok-Jong; Park, Kyung Duck | Department of Dermatology, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, South Korea; Department of Dermatology, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, South Korea; Department of Dermatology, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, South Korea; Department of Dermatology, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, South Korea; Department of Dermatology, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, South Korea; Department of Dermatology, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, South Korea; Department of Dermatology, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, South Korea | 58509964900; 57201367090; 35310922800; 57016046400; 24474659000; 56013454400; 55767995700 | Korean Journal of Dermatology | 0494-4739 | 61 | 9 | 0 | 2025-06-25 | 0 | Korean | Final | 2023 | 바로가기 | ||||||||||||||||||||
| ○ | Article | A Case of Lymphomatoid Papulosis, Type F | Lymphomatoid papulosis (LyP) is a relatively uncommon CD30+ lymphoproliferative disorder with a good prognosis. However, it is important to be cautious because 4%~25% of the cases are accompanied by secondary lymphoma. LyP is divided into subtypes of infiltrate-descriptive categories based on the histological findings. Classically, LyP shows a patchy, wedge-shaped, dermal infiltrate of small to intermediate-sized lymphocytes, with atypical lymphoid cells and a variable mixture of neutrophils, histiocytes, and eosinophils. Follicular LyP (type F LyP), which was recently described and is not yet included as an official subtype in the World Health Organization classification, shares these characteristics, although its infiltrate is folliculocentric. Variable folliculotropism, follicular dilation, rupture, and mucinosis can occur. This entity is commonly misdiagnosed and is possibly underreported because its histopathologic features can masquerade as more common follicular-based entities. Herein, we report the case of follicular type LyP, which has not been reported in in Korean dermatology literature. (Korean J Dermatol 2023;61(2):137~139) © 2023 Korean Dermatological Association. All rights reserved. | Ha, Dae-Lyong; Bang, Jin Seon; Han, Man-Hoon; Lee, Seok-Jong; Jeong, Ji Yun | Department of Dermatology, Kyungpook National University School of Medicine, South Korea, Department of Dermatology, Kyungpook National University Chilgok Hospital, Daegu, South Korea; Department of Dermatology, Kyungpook National University School of Medicine, South Korea; Department of Pathology, Kyungpook National University School of Medicine, South Korea; Department of Dermatology, Kyungpook National University School of Medicine, South Korea; Department of Pathology, Kyungpook National University School of Medicine, South Korea, Department of Pathology, Kyungpook National University Chilgok Hospital, Daegu, South Korea | 57201367090; 57781956500; 57194067936; 56013454400; 57205472984 | Korean Journal of Dermatology | 0494-4739 | 61 | 2 | 0 | 2025-06-25 | 0 | CD30; Follicular; Lymphomatoid papulosis | Korean | Final | 2023 | 바로가기 | |||||||||||||||||||
| ○ | Article | A Case of Thyroid Abscess Following Ethanol Ablation for Benign Thyroid Nodule; [양성 갑상선 결절에서 시행한 에탄올 소작술 이후 발생한 갑상선 농양 1예] | Recently, non-surgical and minimally invasive treatments, including ethanol ablation (EA) and radiofrequency ablation (RFA), have been commonly used as primary treatments for benign thyroid nodules. While these techniques have been gaining popularity owing to their safety and effectiveness, they may involve various complications such as pain, voice change, and hematoma. A thyroid abscess following EA requiring surgical intervention is extremely rare and, to the best of our knowledge, has been reported only once to date. Herein, we present a case of a thyroid abscess following EA for a benign thyroid nodule that required surgical treatment. This complication is believed to be mediated by chemical necrosis and subsequent inflammatory reactions following EA rather than by bacterial infection. Head and neck surgeons should recognize the risk of thyroid abscess as a complication of EA. © 2023 Korean Society of Otorhinolaryngology-Head and Neck Surgery. | Cho, Heungrae; Ahn, Dongbin; Kwak, Ji Hye; Lee, Gil Joon | Department of Otolaryngology-Head and Neck Surgery, School of Medicine, Kyungpook National University, Daegu, South Korea; Department of Otolaryngology-Head and Neck Surgery, School of Medicine, Kyungpook National University, Daegu, South Korea; Department of Otolaryngology-Head and Neck Surgery, School of Medicine, Kyungpook National University, Daegu, South Korea; Department of Otolaryngology-Head and Neck Surgery, School of Medicine, Kyungpook National University, Daegu, South Korea | 58177841300; 44761055400; 57393330600; 57193082568 | godlikeu@naver.com; | Korean Journal of Otorhinolaryngology-Head and Neck Surgery | 2092-6529 | 66 | 9 | 0 | 2025-06-25 | 0 | Ablation techniques; Abscess; Ethanol; Thyroid nodule | English | Final | 2023 | 10.3342/kjorl-hns.2022.01249 | 바로가기 | 바로가기 |
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