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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 | Reader’s forum | [No abstract available] | Hong, Mihee; Baek, Seung-Hak | Department of Orthodontics, School of Dentistry, Kyungpook National University, Daegu, South Korea; Department of Orthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, South Korea | 57190379016; 35090967400 | Korean Journal of Orthodontics | KOREAN J ORTHOD | 2234-7518 | 2005-372X | 51 | 3 | SCIE | DENTISTRY, ORAL SURGERY & MEDICINE | 2021 | 1.361 | 92.9 | 0 | 2025-07-30 | 0 | English | Final | 2021 | 10.4041/kjod.2021.51.3.143 | 바로가기 | 바로가기 | 바로가기 | ||||||||||
| ○ | Article | Effect of reaction product of epichlorohydrin and imidazole on the electrodeposition behavior of Zn-Ni alloy from alkaline zincate solution; [アルカリジンケート浴からの Zn − Ni 合金電析挙動に及ぼすエピクロルヒドリン−イミダゾール反応物の影響] | Electrodeposition of Zn-Ni alloy was performed on a Cu electrode at a current density of 10-5000 A·m−2 and a charge of 5 × 104 C·m−2 in an unagitated zincate solution at 293 K containing the reaction product of epichlorohydrin and imidazole as brightener. The effect of brightener on the deposition behavior of Zn-Ni alloy was investigated. The transfer current density at which the deposition behavior shifts from the normal type to anomalous was 50 to 100 A·m−2 in brightener-free solution, while it became 10 to 20 A·m−2 with an addition of brightener, indicating that the brightener greatly decreased the transfer current density. The transfer current density corresponded to the current density at which the potential of total polarization curve significantly shifted from the more noble region than the equilibrium potential of Zn to less noble region. With an addition of brightener, the decrease in transfer current density is attributed to suppression of hydrogen evolution, and the current efficiency for alloy deposition at high current density region decreased due to suppression of both Zn and Ni deposition. The Ni content of deposited films decreased with brightener, indicating that Ni deposition was more suppressed with brightener. With increasing current density, the crystals of films deposited from the solution containing brightener became smooth and showed the significant brightness. The oxidation reaction of films deposited from the solution containing brightener is suppressed, as a result, the corrosion potential shifted to noble direction. © 2021 The Iron and Steel Institute of Japan. This is an open access article under the terms of the Creative Commons Attribution-NonCommercialNoDerivatives license (https://creativecommons.org/licenses/by-nc-nd/4.0/). | Bae, Seonghwa; Oue, Satoshi; Son, In-Joon; Nakano, Hiroaki | Graduate School of Engineering, Kyushu University, Japan; Faculty of Engineering, Kyushu University, Japan; Department of Materials Science and Metallurgy, Kyungpook National University, South Korea; Faculty of Engineering, Kyushu University, Japan | 57222256464; 6602167690; 9942975800; 35399160700 | nakano@zaiko.kyushu-u.ac.jp; | Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan | TETSU TO HAGANE | 0021-1575 | 1883-2954 | 107 | 3 | SCIE | METALLURGY & METALLURGICAL ENGINEERING | 2021 | 0.475 | 93.0 | 0.67 | 2025-07-30 | 8 | Anomalous codeposition; Brightener; Corrosion potential; Current density; Current efficiency; Electrodeposition; Polarization curve; Transfer current; Zinc-nickel alloy; Zincate | Aromatic compounds; Binary alloys; Corrosion; Current density; Electrodeposition; Electrodes; Reaction products; Corrosion potentials; Current efficiency; Deposition behavior; Electro-deposition behaviors; Equilibrium potentials; High current densities; Oxidation reactions; Polarization curves; Nickel silver | Japanese | Final | 2021 | 10.2355/tetsutohagane.tetsu-2020-108 | 바로가기 | 바로가기 | 바로가기 | |||||||
| ○ | ○ | Article | Functionalities enhancement by an anisotropic strain competition | It is generally believed that epitaxial thin films are subject to compressive strain by the nearest layer with a smaller lattice constant or to tensile strain by the nearest layer with a larger lattice constant. Our experimental and theoretical results show that the above viewpoint is not always effective if the interface is anisotropic in the plane. We propose a novel strain mechanism that takes into account the pre-strain state as a key factor rather than considering only the lattice mismatch. Therefore, this anomalous strain model is potentially important for various multifunctional devices based on strain coupling. | Zhang, X. D.; Shi, Y.; Dho, Joonghoe; Kwon, Daeyoung; Kim, Bog G.; Park, Sungmin; Jung, Myung-Hwa; Kwon, Hyosang; Hwang, Jihwan; Park, Gwangseo; Xing, H. Z.; Lin, T.; Meng, X. J.; Huang, Z. M.; Zhu, X. T.; Bai, W.; Chu, J. H. | Donghua Univ, Coll Sci, Dept Optoelect Sci & Engn, Shanghai, Peoples R China; Donghua Univ, Shanghai Inst Intelligent Elect & Syst, Shanghai, Peoples R China; Kyungpook Natl Univ, Dept Phys, Daegu, South Korea; Samsung Display, Ansan, South Korea; Pusan Natl Univ, Dept Phys, Pusan, South Korea; Sogang Univ, Dept Phys, Seoul, South Korea; SK Hynix, Icheon Si, South Korea; Chinese Acad Sci, Shanghai Inst Tech Phys, Natl Lab Infrared Phys, Shanghai, Peoples R China; East China Normal Univ, Dept Elect Engn, Key Lab Polar Mat & Devices, Minist Educ, Shanghai, Peoples R China | Jo, Myunglae/AAE-4499-2022; Chu, Jiun-Haw/B-1613-2012; Park, Sungmin/LDG-4341-2024 | 59075501800; 57227888600; 6602898623; 55733574200; 8582684200; 36444069000; 8695574600; 37561566900; 57716213500; 7403042181; 7102847826; 7404861221; 7401629820; 35268852900; 57189602512; 15018984100; 7402880878 | xdzhang@dhu.edu.cn; | FERROELECTRICS | FERROELECTRICS | 0015-0193 | 1563-5112 | 583 | 1 | SCIE | MATERIALS SCIENCE, MULTIDISCIPLINARY;PHYSICS, CONDENSED MATTER | 2021 | 0.695 | 93.5 | 0 | 2025-07-30 | 0 | 0 | Functional; strain relationship; surface reaction; thin films | MISFIT RELAXATION MECHANISMS; FERROELECTRIC THIN-FILMS; DOMAIN FORMATION; CONFIGURATIONS; DIODES | Functional; strain relationship; surface reaction; thin films | Anisotropy; Lattice constants; Lattice mismatch; Surface reactions; Tensile strain; Anisotropic strain; Compressive strain; Epitaxial thin films; Functional; Key factors; Novel strains; Pre-strain; Strain relationship; Strain state; Thin-films; Thin films | English | 2021 | 2021-10-26 | 10.1080/00150193.2021.1980342 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | DCPA: approximate adder design exploiting dual carry prediction | This letter presents a novel approximate adder that significantly improves computation accuracy by utilizing a dual carry prediction and error reduction scheme. In our experiments, the proposed adder improves mean error distance (MED) and mean relative error distance (MRED) by up to 58.6% and 58.5%, respectively, when compared with existing approximate adders. Also, when implemented in 65-nm CMOS technology, the proposed adder reduces area, delay, and power by 37%, 48%, and 41%, respectively, compared with the traditional adder. Furthermore, the effectiveness of our design over existing adders is investigated using a digital image processing application. | Choi, Woong; Shim, Minseob; Seok, Hyelin; Kim, Yongtae | Sookmyung Womens Univ, Dept Elect Engn, Seoul 04310, South Korea; Korea Elect Res Inst KERI, Chang Won, Gyeongnam, South Korea; Kyungpook Natl Univ, Sch Comp Sci & Engn, Daegu 41566, South Korea | 57407840500; 56104643800; 57237930600; 55699627900 | yongtae@knu.ac.kr; | IEICE ELECTRONICS EXPRESS | IEICE ELECTRON EXPR | 1349-2543 | 18 | 23 | SCIE | ENGINEERING, ELECTRICAL & ELECTRONIC | 2021 | 0.709 | 93.7 | 0.31 | 2025-07-30 | 3 | 4 | approximate adder; dual carry prediction; energy efficiency | POWER; ACCURACY | Approximate adder; Dual carry prediction; Energy efficiency | Energy efficiency; Errors; Forecasting; Image processing; 65 nm CMOS technologies; Adder design; Approximate adder; Carry prediction; Computation accuracy; Dual carry prediction; Error distance; Error reduction; Mean error distances; Mean relative error; Adders | English | 2021 | 2021-12-10 | 10.1587/elex.18.20210431 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | Article | Sintering Behaviors of Pt Nanopowders with Different Particle Sizes: A Real-Time Synchrotron X-ray Scattering Study | We have studied the solid state sintering behaviors of platinum (Pt) nanopowders with different particle sizes using real-time synchrotron X-ray scattering in air. Pt powders with large particle size of 101 nm at room temperature (RT) showed a defect-free crystal domain size of 10 nm. Most of these powders exhibited multiple grains inside the particle. Solid state sintering of the powders mainly occurred through surface diffusion of Pt atoms near 145 degrees C, grain boundary diffusion from 150 to 400 degrees C, and then grain growth above 550 degrees C. Meanwhile, Pt nanopowders with small particle size of 18 nm at RT showed a crystal domain size of 8 nm. Most of these powders exhibited a single grain inside the particle. Solid state sintering of the nanopowders mainly occurred through surface diffusion of Pt atoms near 151 degrees C and then grain growth above 400 degrees C. Grain boundary diffusion does not happen because grain boundary hardly exists. | Lee, Jang-Hyeong; Cho, Tae-Sik | Kyungpook Natl Univ, Dept Nano Mat Sci & Engn, Sangju 742711, South Korea | cts@knu.ac.kr; | JOURNAL OF NANOELECTRONICS AND OPTOELECTRONICS | J NANOELECTRON OPTOE | 1555-130X | 1555-1318 | 16 | 5 | SCIE | ENGINEERING, ELECTRICAL & ELECTRONIC;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED | 2021 | 0.697 | 94.0 | 0 | Solid State Sintering; Pt Nanopowders; Different Particle Sizes; Real-Time Synchrotron X-ray Scattering | NANOPARTICLES; EXPLOSION; CATALYST | English | 2021 | 2021-05 | 10.1166/jno.2021.3012 | 바로가기 | 바로가기 | 바로가기 | ||||||||||
| ○ | Article | Thermal Stability of Electroless NiP Diffusion Barrier on BiTe-Based Thermoelectric Materials | To produce BiTe-based thermoelectric modules, BiTe-based species with an electroless NiP (EN) coating layer acting as a diffusion barrier were connected to Cu electrodes by a soldering process. In order to investigate the thermal stability of the EN diffusion barrier on BiTe-based thermoelectric materials, Ni-coated BiTe-based modules were annealed at 200 degrees C for 200, 500, and 1000 h. The bonding strength of the BiTe species was >8 MPa, and it remained stable after 200, 500, and 1000 heating hours. The interfacial structure indicated the formation of a Sn-Cu intermetallic compound (IMC) below the EN-plated region. The morphology of Sn-Cu IMC before and after heating was observed. As the current flow was applied through the BiTe-based thermoelectric module, the temperatures on the hot and cold side of the modules were recorded. Owing to the thermal stability of the EN layer, the 200 h heated modules presented heating and cooling efficiencies similar to those of non-heated modules. | Nguyen, Yen Ngoc; Dang, Khanh Quoc; Son, Injoon | Kyungpook Natl Univ, Sch Mat Sci & Engn, Daegu 41566, South Korea; Hanoi Univ Sci & Technol, Sch Mat Sci & Engn, Hanoi 100000, Vietnam | Nguyen, Yen/CAJ-4943-2022; Dang, Khanh/AAN-5726-2020 | ijson@knu.ac.kr; | JOURNAL OF NANOELECTRONICS AND OPTOELECTRONICS | J NANOELECTRON OPTOE | 1555-130X | 1555-1318 | 16 | 5 | SCIE | ENGINEERING, ELECTRICAL & ELECTRONIC;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED | 2021 | 0.697 | 94.0 | 1 | BiTe; Thermoelectric Module; Electroless NiP; Bonding Strength; Cooling | POWER-GENERATION; INTERFACIAL REACTIONS; SOLDER; MODULE; SN | English | 2021 | 2021-05 | 10.1166/jno.2021.3009 | 바로가기 | 바로가기 | 바로가기 | |||||||||
| ○ | ○ | Article | Clinical characteristics and outcomes of patients with isolated pulmonary embolism | The clinical relevance of concomitant deep vein thrombosis (DVT) in patients with pulmonary embolism remains controversial. The aim of the present study was to assess clinical characteristics of patients with isolated pulmonary embolism, thereby investigating isolated pulmonary embolism related clinical factors. Patients hospitalized for pulmonary embolism who underwent DVT workup within 3 days of pulmonary embolism diagnosis were retrospectively classified into two groups: patients with isolated pulmonary embolism and patients with DVT-associated pulmonary embolism (DVT-PE). The clinical, laboratorial and radiological parameters were compared between the two groups. Of 1012 patients, 322 (31.8%) presented with isolated pulmonary embolism, and 690 (68.2%) presented with DVT-PE. In a multivariate analysis, female sex was an independent factor for predicting isolated pulmonary embolism [odds ratio (OR) 1.69, 95% confidence interval (CI) 1.26-2.26, P < 0.001], whereas cancer (OR 0.64, 95% CI 0.43-0.96, P = 0.031), leg pain or swelling (OR 0.08, 95% CI 0.04-0.18, P < 0.001), and central pulmonary embolism (OR 0.44, 95% CI 0.32-0.59, P < 0.001) were negatively associated with isolated pulmonary embolism. There were no significant differences between the two groups with regard to risk stratification and short-term prognosis of pulmonary embolism, including adverse outcomes and pulmonary embolism related in-hospital mortality. Of pulmonary embolism patients who underwent imaging tests for DVT, approximately 32% presented with isolated pulmonary embolism. Isolated pulmonary embolism was positively associated with female sex, whereas it was negatively associated with cancer, leg pain or swelling, and central pulmonary embolism. The presence or absence of concomitant DVT did not influence the severity and short-term prognosis of pulmonary embolism. | Lee, Yong Hoon; Cha, Seung-Ick; Shin, Kyung Min; Lim, Jae Kwang; Lee, Won Kee; Park, Ji-Eun; Choi, Sun Ha; Seo, Hyewon; Yoo, Seung-Soo; Lee, Shin-Yup; Lee, Jaehee; Kim, Chang-Ho; Park, Jae-Yong | Kyungpook Natl Univ, Sch Med, Dept Internal Med, Daegu, South Korea; Kyungpook Natl Univ, Sch Med, Dept Radiol, Daegu, South Korea; Kyungpook Natl Univ, Med Res Collaborat Ctr, Biostat, Daegu, South Korea | Lee, Junseong/T-4139-2017; Lee, Jaehee/S-1697-2018; Choi, Sun Ha/HPD-7234-2023 | 57199022948; 35227126400; 7402410737; 55515341400; 22953484700; 57195437358; 57199723585; 55612130200; 56479781600; 49863712700; 13805476000; 7409873555; 58360293800 | sicha@knu.ac.kr; | BLOOD COAGULATION & FIBRINOLYSIS | BLOOD COAGUL FIBRIN | 0957-5235 | 1473-5733 | 32 | 6 | SCIE | HEMATOLOGY | 2021 | 1.061 | 94.2 | 0.4 | 2025-07-30 | 9 | 9 | computed tomography; deep vein thrombosis; prognosis; pulmonary embolism | DEEP-VEIN THROMBOSIS; VENOUS THROMBOEMBOLISM; RISK; IMPACT | computed tomography; deep vein thrombosis; prognosis; pulmonary embolism | Aged; Female; Humans; Male; Middle Aged; Multivariate Analysis; Neoplasms; Prognosis; Pulmonary Embolism; Retrospective Studies; Risk Factors; Venous Thrombosis; aged; complication; female; human; lung embolism; male; middle aged; multivariate analysis; neoplasm; prognosis; retrospective study; risk factor; vein thrombosis | English | 2021 | 2021-09 | 10.1097/mbc.0000000000001050 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | 3D print material study to reproduce the function of pig heart tissue | BACKGROUND: Three-dimensional (3D) printing technology for heart simulation can be represented as complex anatomical structures, and objective information can be provided. OBJECTIVE: We studied 3D print material to find a material with the same elastic coefficient as pig elastic coefficient. METHODS: Pig heart sample, Agilus sample, Tango sample, TPU sample, and silicone sample were studied. The elastic coefficient of each specimen was measured using an elastic coefficient measuring instrument. The analysis was performed using the average value of ten specimens of the same size. We suggested an equation to find the elastic coefficient of material by the thickness using the elastic coefficient of Agilus, Tango, and silicone. RESULTS: The sample with similar elasticity to the pig sample did not show the same coefficient of elasticity at the same sample size. In Tango, the 0.5 mm high elastic force was about 3 times higher than the pig sample 7 mm elastic force. CONCLUSIONS: The study was conducted using 3D print material and silicone which can reproduce the elasticity of pig heart. However, no material is currently available to reproduce pig heart sample of the same size. However, if the heart is developed considering only elasticity, it can be sufficiently reproduced using the research results. | Kim, Jung-Hun; Park, Chun-Kyu; Park, Ji-Eun; Lee, Jong-Min | Kyungpook Natl Univ Hosp, Biomed Res Inst, Daegu, South Korea; Kyungpook Natl Univ, Dept Biomed Engn, Daegu, South Korea; Kyungpook Natl Univ, Nonlinear Dynam Lab, Daegu, South Korea; Kyungpook Natl Univ, Sch Med, Dept Radiol, Daegu, South Korea | Lee, Jae Min/H-8475-2013 | 58567949800; 57222736257; 57209642201; 55689919700 | jonglee@knu.ac.kr; | TECHNOLOGY AND HEALTH CARE | TECHNOL HEALTH CARE | 0928-7329 | 1878-7401 | 29 | SCIE | ENGINEERING, BIOMEDICAL;HEALTH CARE SCIENCES & SERVICES | 2021 | 1.205 | 94.4 | 1.86 | 2025-07-30 | 4 | 5 | Agilus elastic material; Tango elastic material; pig heart; elastic force; elastic coefficient | Agilus elastic material; elastic coefficient; elastic force; pig heart; Tango elastic material | Animals; Computer Simulation; Elasticity; Heart; Printing, Three-Dimensional; Silicones; Swine; agilus; elastomer; polymer; resin; silicone; thermoplastic polyurethane; unclassified drug; silicone derivative; analytic method; animal experiment; animal tissue; Conference Paper; controlled study; correlation coefficient; elasticity; heart tissue; information processing; measurement; nonhuman; pig; priority journal; sample; simulation; standard; three dimensional printing; animal; computer simulation; elasticity; heart | English | 2021 | 2021 | 10.3233/thc-218003 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article; Proceedings Paper | A method for enhancing speech and warning signals based on parallel convolutional neural networks in a noisy environment | BACKGROUND: Digital hearing aids are based on technology that amplifies sound and removes noise according to the frequency of hearing loss in hearing loss patients. However, within the noise removed is a warning sound that alert the listener; the listener may be exposed to danger because the warning sound is not recognized. OBJECTIVE: In this paper, a deep learning model was used to improve these limits and propose a method to distinguish the warning sound in speech signals mixed with noise. In addition, the improved speech and warning sound were derived by removing noise present in the classification sound signals. METHODS: To classify the sound dataset, an adaptive convolution filter that changes according to two signals is proposed. The proposed convolution filter is applied to the PCNNs model to analyze the characteristics of the time and frequency domains of the dataset and classify the presence or absence of warning sound. In addition, the CEDN model was used to improve the intelligibility of the warning and the speech in the signal based on the warning sound classification from the proposed PCNNs model. RESULTS: Experimental results show that the PCNNs model using the proposed multiplicative filters is efficient for analyzing sound signals with complex frequencies. In addition, the CEDN model was used to improve the intelligibility of the warning and the speech in the signal based on the warning sound classification from the proposed PCNNs model. CONCLUSION: We confirmed that the PCNN model with the proposed filter showed the highest training rate, lowest error rate, and the most stable results. In addition, the CEDN model confirmed that speech and warning sounds were recognized, but it was confirmed that there was a limitation in clearly recognizing speech as the noise ratio increased. | Kang, Ha Lim; Na, Sung Dae; Kim, Myoung Nam | Kyungpook Natl Univ, Grad Sch, Dept Med & Biol Engn, Daegu 700422, South Korea; Kyungpook Natl Univ Hosp, Dept Biomed Engn, Daegu 700422, South Korea; Kyungpook Natl Univ, Sch Med, Dept Biomed Engn, Daegu 700422, South Korea | Kim, Sunghoon/Z-2981-2019 | 57215317732; 56366244500; 57212315655 | kimmn@knu.ac.kr; | TECHNOLOGY AND HEALTH CARE | TECHNOL HEALTH CARE | 0928-7329 | 1878-7401 | 29 | SCIE | ENGINEERING, BIOMEDICAL;HEALTH CARE SCIENCES & SERVICES | 2021 | 1.205 | 94.4 | 0.93 | 2025-07-30 | 0 | 2 | Warning sound classification; parallel convolutional neural networks; sound enhancement; convolutional encoder-decoder network | convolutional encoder-decoder network; parallel convolutional neural networks; sound enhancement; Warning sound classification | Hearing Aids; Humans; Neural Networks, Computer; Noise; Speech; Speech Perception; classification; Conference Paper; convolutional neural network; deep learning; human; interpersonal communication; noise; noise reduction; nonhuman; priority journal; sound; speech; speech discrimination; hearing aid; noise; speech perception | English | 2021 | 2021 | 10.3233/thc-218015 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | A uterine cervix supporting device (Con-Cap™) for reducing canal stenosis after Loop Electrosurgical Excisional Procedure | BACGROUND: Cervical stenoses are one of the main long-term consequences after conization of the uterine cervix. OBJECTIVE: The purpose of this study was to evaluate the safety and efficacy of a uterine cervix supporting device (Con-Cap (TM)) in reducing uterine cervical stenosis after Loop Electrosurgical Excisional Procedure (LEEP). METHODS: We enrolled 112 patients who underwent LEEP between March 2017 to May 2019. Con-Cap (TM) was inserted into the uterine endocervical canal for 4 weeks after LEER. Laboratory values and clinical symptoms were evaluated. The presence of uterine cervical narrowing was determined at 2 weeks after removal of the Con-Cap (TM). Data were analyzed using the two-sample t test and chi(2) test. RESULTS: A total of 78 women completed the 6-week study period. Thirty-four patients did not complete the study period. The diameter of the uterine cervical canal was significantly greater at postoperative 6 weeks than preoperatively (Hegar dilator No, 2.10 +/- 0.56 vs. 3.21 +/- 0.71, P < 0.01). The complications were acceptable. CONCLUSIONS: Con-Cap (TM) can be used to reduce uterine cervical stenosis safely and effectively after conization of uterine cervix. | Park, Ji Young; Lee, Yoon Hee; Chong, Gun Oh; Hong, Dae Gy | Kyungpook Natl Univ, Dept Pathol, Chilgok Hosp, Daegu, South Korea; Kyungpook Natl Univ, Dept Obstet & Gynecol, Chilgok Hosp, Daegu, South Korea | LEE, SEJUE/KMX-1267-2024 | 57210160197; 37088851700; 23099068000; 26656670100 | chssa0220@hanmail.net; | TECHNOLOGY AND HEALTH CARE | TECHNOL HEALTH CARE | 0928-7329 | 1878-7401 | 29 | 5 | SCIE | ENGINEERING, BIOMEDICAL;HEALTH CARE SCIENCES & SERVICES | 2021 | 1.205 | 94.4 | 0.13 | 2025-07-30 | 3 | 2 | Uterine cervix; stenosis; loop electrosurgical excision procedure; conization; complication | RISK-FACTORS; COLD KNIFE; CONIZATION; LASER; COMPLICATIONS | complication; conization; loop electrosurgical excision procedure; stenosis; Uterine cervix | C reactive protein; oxidized regenerated cellulose; absolute neutrophil count; adult; Article; colposcopy; controlled study; device dislodgement; device removal; erythrocyte sedimentation rate; female; human; hysterectomy; laboratory test; leukocyte count; loop electrosurgical excision; major clinical study; medical device complication; pelvic pain; premenopause; uterine cervix; uterine cervix biopsy; uterine cervix cancer; uterine cervix carcinoma in situ; uterine cervix conization; uterine cervix cytology; uterine cervix disease; uterine cervix stenosis; vagina bleeding; vagina discharge (disease) | English | 2021 | 2021 | 10.3233/thc-202639 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Clinical usefulness of deep learning-based automated segmentation in intracranial hemorrhage | BACKGROUND: Doctors with various specializations and experience order brain computed tomography (CT) to rule out intracranial hemorrhage (ICH). Advanced artificial intelligence (AI) can discriminate subtypes of ICH with high accuracy. OBJECTIVE: The purpose of this study was to investigate the clinical usefulness of AI in ICH detection for doctors across a variety of specialties and backgrounds. METHODS: A total of 5702 patients' brain CTs were used to develop a cascaded deep-learning-based automated segmentation algorithm (CDLA). A total of 38 doctors were recruited for testing and categorized into nine groups. Diagnostic time and accuracy were evaluated for doctors with and without assistance from the CDLA. RESULTS: The CDLA in the validation set for differential diagnoses among a negative finding and five subtypes of ICH revealed an AUC of 0.966 (95% CI, 0.955-0.977). Specific doctor groups, such as interns, internal medicine, pediatrics, and emergency junior residents, showed significant improvement with assistance from the CDLA (p = 0.029). However, the CDLA did not show a reduction in the mean diagnostic time. CONCLUSIONS: Even though the CDLA may not reduce diagnostic time for ICH detection, unlike our expectation, it can play a role in improving diagnostic accuracy in specific doctor groups. | Kim, Chang Ho; Hahm, Myong Hun; Lee, Dong Eun; Choe, Jae Young; Ahn, Jae Yun; Park, Sin-Youl; Lee, Suk Hee; Kwak, Youngseok; Yoon, Sang-Youl; Kim, Ki-Hong; Kim, Myungsoo; Chang, Sung Hyun; Son, Jeongwoo; Cho, Junghwan; Park, Ki-Su; Kim, Jong Kun | Kyungpook Natl Univ, Sch Med, Dept Emergency Med, 130 Dongdeok Ro, Daegu 41944, South Korea; Kyungpook Natl Univ, Sch Med, Dept Radiol, Daegu, South Korea; Yeungnam Univ, Dept Emergency Med, Coll Med, Daegu, South Korea; Daegu Catholic Univ, Dept Emergency Med, Med Ctr, Daegu, South Korea; Kyungpook Natl Univ, Sch Med, Dept Neurosurg, 130 Dongdeok Ro, Daegu 41944, South Korea; Daegu Catholic Univ, Dept Neurosurg, Sch Med, Daegu, South Korea; CAIDE Syst Inc, Lowell, MA USA | Cho, Junghwan/AAK-4752-2020; Kim, Joo/JAZ-0897-2023; Ahn, Jae Yun/N-2652-2017; Lee, Dong Eun/HTN-4501-2023 | 56441824200; 56015548700; 57202299238; 57023107400; 56937505400; 56184913500; 57205602138; 57204667265; 57195615457; 57201886535; 57210943611; 57753019200; 57638226800; 57424663500; 55932363100; 55915816900 | kiss798@gmail.com;kim7155@knu.ac.kr; | TECHNOLOGY AND HEALTH CARE | TECHNOL HEALTH CARE | 0928-7329 | 1878-7401 | 29 | 5 | SCIE | ENGINEERING, BIOMEDICAL;HEALTH CARE SCIENCES & SERVICES | 2021 | 1.205 | 94.4 | 0.2 | 2025-07-30 | 6 | 4 | Intracranial hemorrhages; diagnosis; artificial intelligence; deep learning; ROC curve | CT; BRAIN | artificial intelligence; deep learning; diagnosis; Intracranial hemorrhages; ROC curve | adolescent; adult; aged; Article; artificial intelligence; brain hemorrhage; child; computer assisted tomography; convolutional neural network; deep learning; detection algorithm; diagnosis time; diagnostic accuracy; emergency physician; female; human; ICD-10; internal medicine; major clinical study; male; neuroimaging; null result; pediatrics; resident; segmentation algorithm; subdural hematoma | English | 2021 | 2021 | 10.3233/thc-202533 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Dysfunction of anterior insula in the non-affected hemisphere in patients with post-stroke depression: A resting-state fMRI study | BACKGROUND: Post-stroke depression (PSD) is a consequential neuropsychiatric sequela that occurs after stroke. However, the pathophysiology of PSD are not well understood yet. OBJECTIVE: To explore alterations in functional connectivity (FC) between anterior insula and fronto-cortical and other subcortical regions in the non-affected hemisphere in patients with PSD compared to without PSD and healthy control. METHODS: Resting-state FC was estimated between the anterior insula and cortical and subcortical brain regions in the non-affected hemisphere in 13 patients with PSD, 12 patients without PSD, and 13 healthy controls. The severity of depressive mood was measured by the Beck Depression Inventory (BDI)-II. RESULTS: Patients with PSD showed significant differences in FC scores between the anterior insula and the superior frontal, middle frontal, and orbitofrontal gyrus in the non-affected hemisphere than healthy control or patients without PSD (P < 0.05). In post-hoc, patients with PSD showed higher FC scores between the anterior insula and the superior frontal region than patients without PSD (P < 0.05). Furthermore, alterations in FC of the superior frontal, middle frontal, and orbitofrontal gyrus were positively correlated with depression severity, as measured with the BDI-II (P < 0.001). CONCLUSIONS: This dysfunctional connection between anterior insular and fronto-limbic connections in the non-affected hemisphere might be associated with suggestive mechanism of PSD and could be used as an imaging biomarker in PSD. | Park, Eunhee; Park, Jang Woo; Min, Yu-Sun; Lee, Yang-Soo; Kim, Byung-Soo; Kim, Ju-Hyun; Lee, Hui Joong; Lee, Jongmin; Chang, Yongmin; Jun, Tae-Du | Kyungpook Natl Univ Hosp, Dept Rehabil Med, Daegu 41944, South Korea; Kyungpook Natl Univ, Sch Med, Dept Rehabil Med, Daegu 41944, South Korea; Korea Inst Radiol & Med Sci, Dept Korea Radioisotope Ctr Pharmaceut, Seoul 01812, South Korea; Kyungpook Natl Univ Hosp, Dept Psychiat, Daegu 41944, South Korea; Kyungpook Natl Univ, Sch Med, Dept Psychiat, Daegu 41944, South Korea; Kyungpook Natl Univ, Sch Med, Dept Radiol, Daegu 41944, South Korea; Kyungpook Natl Univ, Dept Med & Biol Engn, 130 Dongdeok Ro, Daegu 41944, South Korea; Kyungpook Natl Univ, Sch Med, Dept Mol Med, Daegu 41944, South Korea | 56107216400; 57202928230; 48061349800; 57202952463; 57214661242; 57208450909; 23485776600; 55689919700; 7501840633; 36622364500 | ychang@knu.ac.kr;teeed0522@hanmail.net; | TECHNOLOGY AND HEALTH CARE | TECHNOL HEALTH CARE | 0928-7329 | 1878-7401 | 29 | SCIE | ENGINEERING, BIOMEDICAL;HEALTH CARE SCIENCES & SERVICES | 2021 | 1.205 | 94.4 | 1.86 | 2025-07-30 | 3 | 4 | Post-stroke depression; resting-state functional imaging; anterior insula; Beck Depression Inventory | Aged; Brain; Brain Mapping; Depression; Female; Humans; Magnetic Resonance Imaging; Male; Middle Aged; Stroke; adult; aged; anterior insula; Beck Depression Inventory; brain cortex; brain dysfunction; case control study; clinical article; Conference Paper; controlled study; depression; disease severity; female; frontal cortex; functional connectivity; functional magnetic resonance imaging; functional neuroimaging; human; lesion volume; male; medial frontal cortex; middle aged; orbital cortex; post-stroke depression; priority journal; subcortex; superior frontal gyrus; brain; brain mapping; cerebrovascular accident; complication; depression; diagnostic imaging; nuclear magnetic resonance imaging | English | 2021 | 2021 | 10.3233/thc-218004 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||||
| ○ | ○ | Article | Implementation of a 3D position detection system for a medical simulator | BACKGOROUND AND OBJECTIVE: Cardiovascular disorders are increasing because of poor eating habits, excessive drinking, and lack of exercise. Some of the typical cardiovascular surgical procedures utilize catheters. Catheter-based procedures require the surgeons to have extensive experience and high proficiency at performing vascular interventions. However, the learning period to acquire such proficiency is lengthy and the opportunities for practical training and mastery are insufficient. Therefore, due to insufficient skill, dangerous situations with damage or rupture of the patient's blood vessels may occur, thereby increasing the risk of medical accidents. Hence, it is necessary to have experience and proficiency for performing vascular interventions. Thus, it is necessary to develop a simulator to shorten learning time and reduce medical accidents. METHODS: In this study, we developed a position detection system for the simulator to use physical models to learn cardiovascular surgical intervention techniques. The developed system uses changes in the output values of a Hall sensor based on the position of a permanent magnet. RESULTS AND CONCLUSIONS: From the changing output values, the distance calculation equation is derived, and the position of the permanent magnet is effectively estimated from the calculations. The performance of the position detecting system was tested, and the results proved that the system could be sufficiently used as a simulator. | Bang, Sang Kwang; Seong, Ki Woong; Kim, Myoung Nam; Lee, Jyung Hyun | Kyungpook Natl Univ, Grad Sch, Dept Med & Biol Engn, Daegu 700422, South Korea; Kyungpook Natl Univ Hosp, Dept Biomed Engn, Daegu 700422, South Korea; Kyungpook Natl Univ, Sch Med, Dept Biomed Engn, Daegu 700422, South Korea | Lee, Jaetae/AAR-3317-2021; Kim, Sunghoon/Z-2981-2019 | 57222732058; 23968197900; 57212315655; 8839783700 | pung@knu.ac.kr; | TECHNOLOGY AND HEALTH CARE | TECHNOL HEALTH CARE | 0928-7329 | 1878-7401 | 29 | SCIE | ENGINEERING, BIOMEDICAL;HEALTH CARE SCIENCES & SERVICES | 2021 | 1.205 | 94.4 | 0.46 | 2025-07-30 | 1 | 1 | Permanent magnet; hall sensor; hall effect; position detection; medical simulator | hall effect; hall sensor; medical simulator; Permanent magnet; position detection | cardiovascular surgery; Conference Paper; data analysis software; data processing; detection algorithm; devices; physical model; priority journal | English | 2021 | 2021 | 10.3233/thc-218029 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article; Proceedings Paper | Implementation of a fully implantable middle-ear hearing device chip | BACKGROUND AND OBJECTIVE: Recently, with the increase in the population of hearing impaired people, various types of hearing aids have been rapidly developed. In particular, a fully implantable middle ear hearing device (F-IMEHD) is developed for people with sensorineural hearing loss. The F-IMEHD system comprises an implantable microphone, a transducer, and a signal processor. The signal processor should have a small size and consume less power for implantation in a human body. METHODS: In this study, we designed and fabricated a signal-processing chip using the modified FFT algorithm. This algorithm was developed focusing on eliminating time delay and system complexity in the transform process. The designed signal-processing chip comprises a 4-channel WDRC, a fitting memory, a communication 1control part, and a pulse density modulator. Each channel is separated using a 64-point fast Fourier transform (FFT) method and the gain value is matched using the fitting table in the fitting memory. RESULTS AND CONCLUSION: The chip was designed by Verilog-HDL and the designed HDL codes were verified by Modelsim-PE 10.3 (Mentor graphics, USA). The chip was fabricated using a 0.18 mu m CMOS process (SMIC, China). Experiments were performed on a cadaver to verify the performance of the fabricated chip. | Lee, Jyung Hyun; Kim, Dong Wook; Seong, Ki Woong; Kim, Myoung Nam; Cho, Jin-Ho | Kyungpook Natl Univ, Sch Med, Dept Biomed Engn, Daegu, South Korea; Korea Testing Certificat, Gyeongbuk Branch Off, Daegu, South Korea; Kyungpook Natl Univ Hosp, Dept Biomed Engn, Daegu, South Korea; Kyungpook Natl Univ Korea, Inst Biomed Engn Res, Daegu, South Korea | Kim, Sunghoon/Z-2981-2019; Lee, Jaetae/AAR-3317-2021 | 8839783700; 57188671441; 23968197900; 57212315655; 57388235200 | jhcho@ee.knu.ac.kr; | TECHNOLOGY AND HEALTH CARE | TECHNOL HEALTH CARE | 0928-7329 | 1878-7401 | 29 | SCIE | ENGINEERING, BIOMEDICAL;HEALTH CARE SCIENCES & SERVICES | 2021 | 1.205 | 94.4 | 0.46 | 2025-07-30 | 2 | 2 | Fully implantable middle ear hearing device; wide dynamic range; CMOS process; Verilog-HDL; Cadaver experiment | VIBRATION TRANSDUCER; COMPRESSION; DESIGN; AID; PRINCIPLES; EXPERIENCE | Cadaver experiment; CMOS process; Fully implantable middle ear hearing device; Verilog-HDL; wide dynamic range | algorithm; auditory stimulation; cadaver; computer simulation; Conference Paper; controlled study; Fourier transform; hearing impairment; human; perception deafness; priority journal; prosthesis design; signal processing; sound pressure; speech perception; wireless communication | English | 2021 | 2021 | 10.3233/thc-218038 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Status epilepticus as an initial presentation of aortic dissection: A case report | BACKGROUND: Status epilepticus (SE) as the initial presentation of aortic dissection in the absence of chest pain is very rare. We report a case of aortic dissection (AD), which presented as SE with markedly elevated levels of D-dimer, a reliable and sensitive index of fibrin deposition and stabilization. CASE REPORT: A 74-year-old Asian woman presented to the emergency department (ED) with an altered mental state following three consecutive generalized tonic-clonic seizures at home. Her initial vital signs were normal, and the head CT scan was non-informative. Most of the laboratory results were normal, but the D-dimer levels were markedly elevated. About 90 minutes after arriving at the ED, the patient developed another tonic-clonic seizure for about three-four minutes. Emergent chest CT revealed type A AD with hemopericardium. During preparation for the emergency operation, the patient suffered a cardiac arrest. Despite performing cardiopulmonary resuscitation (CPR) for 35 minutes, the patient died. CONCLUSIONS: The goal of this case report is to make clinicians aware of the possibility that new-onset SE with elevated D-dimer levels can be an indication of acute AD type A in the absence of typical symptoms. | Yeo, In Hwan; Kim, Changho; Kim, Jong Kun | Kyungpook Natl Univ, Sch Med, Dept Emergency Med, 130 Dongdeck Ro, Daegu 700721, South Korea | Yeo, Inhwan/GXZ-7024-2022; Kim, Joo/JAZ-0897-2023 | 57216816807; 56441824200; 55915816900 | Kim7155@knu.ac.kr; | TECHNOLOGY AND HEALTH CARE | TECHNOL HEALTH CARE | 0928-7329 | 1878-7401 | 29 | 2 | SCIE | ENGINEERING, BIOMEDICAL;HEALTH CARE SCIENCES & SERVICES | 2021 | 1.205 | 94.4 | 0.07 | 2025-07-30 | 1 | 1 | Status epilepticus; type A aortic dissection; D-dimer | D-DIMER | D-dimer; Status epilepticus; type A aortic dissection | D dimer; glucose; inotropic agent; aged; aortic dissection; Article; blood pressure; body temperature; breathing; case report; clinical article; depression; dizziness; electrocardiogram; electroencephalography; epileptic state; female; Glasgow coma scale; glucose blood level; heart arrest; heart left ventricle hypertrophy; hemopericardium; human; hypertension; medical history; mental health; nausea; nuclear magnetic resonance imaging; oxygen desaturation; oxygen saturation; priority journal; pulse rate; resuscitation; tonic clonic seizure | English | 2021 | 2021 | 10.3233/thc-202309 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
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