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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ○ | ○ | Letter | A Case of Paraneoplastic Neurological Syndrome Expressing Dual Antineuronal Antibodies: Anti-Hu and Recoverin | Ryu, Ho-Sung; Lee, Shin Yup; Park, Dong Ho; Lee, Jong-Mok | Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Sch Med, Dept Neurol, Daegu, South Korea; Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Sch Med, Dept Internal Med, Daegu, South Korea; Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Sch Med, Dept Ophthalmol, Daegu, South Korea | Lee, Jong-Mok/KVY-9550-2024 | 57014206500; 49863712700; 36676632900; 57192075673 | azulmar@gmail.com; | ANNALS OF INDIAN ACADEMY OF NEUROLOGY | ANN INDIAN ACAD NEUR | 0972-2327 | 1998-3549 | 23 | 1 | SCIE | CLINICAL NEUROLOGY | 2020 | 1.383 | 91.6 | 0.19 | 2025-06-25 | 2 | 4 | RETINOPATHY; NEUROPATHY | methylprednisolone; recoverin; adult; aged; ataxia; case report; cerebellum degeneration; clinical article; cytology; dysarthria; electrophysiology; fluorescence angiography; follow up; gait; Guillain Barre syndrome; histopathology; human; immunoblotting; influenza vaccination; Letter; male; motor unit potential; nerve conduction; neurologic disease assessment; neurologic examination; nuclear magnetic resonance imaging; paraneoplastic neuropathy; pinprick test; romberg test; spine instability; tendon reflex; transbronchial aspiration | English | 2020 | 2020 (JAN-FEB) | 10.4103/aian.aian_185_19 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Letter | A Novel Mutation in N-Terminal Actin-Binding Domain of the DMD Gene Presenting Becker Muscular Dystrophy as Recurrent Exertional Rhabdomyolysis: A Case Report | Lee, Jong-Mok | Kyungpook Natl Univ Hosp, Dept Neurol, 130 Dongdeok Ro, Daegu 41944, South Korea | ; Lee, Jong-Mok/KVY-9550-2024 | 57192075673 | azulmar@gmail.com; | ANNALS OF INDIAN ACADEMY OF NEUROLOGY | ANN INDIAN ACAD NEUR | 0972-2327 | 1998-3549 | 23 | 1 | SCIE | CLINICAL NEUROLOGY | 2020 | 1.383 | 91.6 | 0.19 | 2025-06-25 | 1 | 1 | DYSTROPHINOPATHY; SERVER; PREDICTION | alanine aminotransferase; aspartate aminotransferase; adolescent; Becker muscular dystrophy; blood cell count; case report; clinical article; creatine kinase blood level; DMD Gene; electromyography; exercise; gene; gene mutation; genetic analysis; hospitalization; human; human tissue; immunohistochemistry; Letter; male; motor unit potential; myalgia; myoglobinuria; neurologic examination; rhabdomyolysis; whole exome sequencing | English | 2020 | 2020 (JAN-FEB) | 10.4103/aian.aian_215_19 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Clinical Experience of Nusinersen in a Broad Spectrum of Spinal Muscular Atrophy: A Retrospective Study | Background: Nusinersen has recently been approved and more widely used as first-line treatment of spinal muscular atrophy (SMA). This study aimed to evaluate the real-world experience of nusinersen use for patients with a broad spectrum of SMA. Methods: We reviewed consecutive patients with SMA treated with nusinersen from April 2018 to April 2020. Data collected included clinical and diagnostic characteristics, molecular genetics, functional motor outcomes, and adverse events. Results: Seven patients including four with SMA type I and three with SMA type 2 were treated with nusinersen. The median disease duration at the time of the first dose and the median follow-up duration were 37 months (range: 0.5-254 months) and 6.1 months (range: 2.1-22.1 months), respectively. Of the 41 lumbar punctures (LPs), seven fluoroscopy-guided LPs were successfully performed for two patients without sedation. All patients showed improvement in motor function even though the current tools for motor assessment seemed unable to detect subtle subjective improvement. All patients maintained a stable respiratory status. No patient has experienced a severe adverse event or discontinued treatment so far. Conclusion: Although the number of patients in this study was small, our results suggest that nusinersen is effective even in patients with a later stage of the disease. Additional long-term prospective studies with more number of patients having a broad spectrum of diseases are needed to identify meaningful improvement in the motor function and quality of life after nusinersen treatment. | Kim, Ae Ryoung; Lee, Jong-Mok; Min, Yu-Sun; Lee, Hoseok; Kim, Dongsub; Hwang, Su-Kyeong; Kwon, Soonhak; Lee, Yun Jeong | Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Sch Med, Dept Rehabil Med, Daegu, South Korea; Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Sch Med, Dept Neurol, Daegu, South Korea; Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Sch Med, Dept Radiol, Daegu, South Korea; Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Sch Med, Dept Pediat, Daegu, South Korea | Lee, Jong-Mok/KVY-9550-2024 | 57196257330; 57192075673; 48061349800; 57200653487; 57205248455; 37761570400; 55468232200; 57221093642 | oilily1103@hanmail.net; | ANNALS OF INDIAN ACADEMY OF NEUROLOGY | ANN INDIAN ACAD NEUR | 0972-2327 | 1998-3549 | 23 | 6 | SCIE | CLINICAL NEUROLOGY | 2020 | 1.383 | 91.6 | 0.33 | 2025-06-25 | 9 | 10 | Adolescents; child; nusinersen; spinal muscular atrophy | SHAM CONTROL; MANAGEMENT; DIAGNOSIS; TYPE-1; CARE | Adolescents; child; nusinersen; spinal muscular atrophy | nusinersen; survival motor neuron protein 1; survival motor neuron protein 2; adolescent; adult; Article; child; clinical article; computer assisted tomography; disease duration; disease severity; enteric feeding; female; fluoroscopy; follow up; gene deletion; health care quality; human; lumbar puncture; male; motoneuron; motor performance; noninvasive ventilation; prospective study; quality of life; radiation exposure; retrospective study; scoliosis; spinal muscular atrophy; tracheostomy; young adult | English | 2020 | 2020 (NOV-DEC) | 10.4103/aian.aian_524_20 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Letter | Golfer's Myelopathy: Is It Like Surfer's Myelopathy? | Yang, Seok-Yeol; Lee, Jong-Mok | Kyungpook Natl Univ Hosp, Dept Neurol, 130 Dongdeok Ro, Daegu 41944, South Korea | Lee, Jong-Mok/KVY-9550-2024 | 57215494939; 57192075673 | azulmar@gmail.com; | ANNALS OF INDIAN ACADEMY OF NEUROLOGY | ANN INDIAN ACAD NEUR | 0972-2327 | 1998-3549 | 23 | 5 | SCIE | CLINICAL NEUROLOGY | 2020 | 1.383 | 91.6 | 0.37 | 2025-06-25 | 4 | 3 | aquaporin 4 antibody; immunoglobulin G; levothyroxine; methylprednisolone; thyrotropin; adult; case report; cerebrospinal fluid; clinical article; diffusion weighted imaging; erythrocyte count; female; golf; golfers myelopathy; human; hypercoagulability; hyperesthesia; hyperthyroidism; inflammation; Letter; leukocyte count; middle aged; monocyte; muscle weakness; nuclear magnetic resonance imaging; paraneoplastic syndrome; spinal cord disease; spinal cord injury; surfer myelopathy; tendon reflex; thyroidectomy | English | 2020 | 2020 (SEP-OCT) | 10.4103/aian.aian_266_19 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||||
| ○ | ○ | Letter | Sphenoid Sinusitis as a Possible Cause of Trismus | Lee, Jong-Mok; Hahm, Myong H.; Ryu, Ho-Sung; Hwang, Yang-Ha | Kyungpook Natl Univ Hosp, Dept Neurol, 130 Dongduk Ro, Daegu 41944, South Korea; Kyungpook Natl Univ Hosp, Dept Radiol, Daegu, South Korea | Lee, Jong-Mok/KVY-9550-2024; HWANG, Yang-Ha/F-3068-2013 | 57192075673; 57217194833; 57014206500; 7402311308 | ryuhosung138@gmail.com; | ANNALS OF INDIAN ACADEMY OF NEUROLOGY | ANN INDIAN ACAD NEUR | 0972-2327 | 1998-3549 | 23 | 3 | SCIE | CLINICAL NEUROLOGY | 2020 | 1.383 | 91.6 | 0 | 2025-06-25 | 0 | 0 | carbamazepine; adult; case report; chronic sinusitis; clinical article; computer assisted tomography; drug dose increase; face muscle; female; hemifacial spasm; human; Letter; mandibular nerve; masseter muscle; masticatory muscle; middle aged; muscle spasm; nuclear magnetic resonance imaging; sinusitis; sphenoid sinus; trismus | English | 2020 | 2020 (MAY-JUN) | 10.4103/aian.aian_441_19 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||||
| ○ | ○ | Letter | Vitamin D deficiency and its correlates in migraine patients | Seo, Jong-Geun; Park, Sung-Pa | Kyungpook Natl Univ, Sch Med, Dept Neurol, 680 Gukchaebosang Ro, Daegu 41944, South Korea | 16040307500; 7501833424 | sppark@mail.knu.ac.kr; | ANNALS OF INDIAN ACADEMY OF NEUROLOGY | ANN INDIAN ACAD NEUR | 0972-2327 | 1998-3549 | 23 | 2 | SCIE | CLINICAL NEUROLOGY | 2020 | 1.383 | 91.6 | 0 | 2025-06-25 | 2 | 1 | VALIDATION | antiinflammatory agent; neurotransmitter; adult; anxiety; body mass; chronicity; controlled study; cross-sectional study; diet supplementation; emotional stress; fatigue; Fatigue Severity Scale; female; generalized anxiety disorder; headache; human; Insomnia Severity Index; Letter; major clinical study; male; MIDAS (migraine); migraine; pain; pathogenesis; Patient Health Questionnaire 9; prospective study; radioimmunoassay; transformed migraine; upregulation; visual analog scale; vitamin D deficiency | English | 2020 | 2020 (MAR-APR) | 10.4103/aian.aian_229_19 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||||
| ○ | ○ | Article | Comparison of inclination and vertical changes between single-wire and double-wire retraction techniques in lingual orthodontics | Objective: The Heat Induction Typodont System (HITS), used in some recent studies, has a distinct advantage over previous tooth movement simulation methods. This study aimed to compare inclination and vertical changes between the single-wire and double-wire techniques during en masse retraction with different lengths of lever arms in lingual orthodontics using an upgraded version of the HITS. Methods: Duet lingual brackets, which have two main slots, were used in this study. Forty samples were divided into four groups according to the length of the lever arm (3-mm or 6-mm hook) and the retraction wire (single-wire or double-wire). Four millimeters of en masse retraction was performed using lingual appliances. Thereafter, 3-dimensional-scanned images of the typodont were analyzed to measure inclination and vertical changes of the anterior teeth. Results: Incisor inclination presented more changes in the single-wire groups than in the double-wire groups. However, canine inclination did not differ between these groups. Regarding vertical changes, only the lateral incisors in the single-wire groups presented significantly larger values than did those in the double-wire groups. Combining the effect of hook lengths, among the four groups, the single-wire group with the 3-mm hook had the highest value, while the double-wire group with the 6-mm hook showed the least decrease in crown inclination and extrusion. Conclusions: The double-wire technique with an extended lever arm provided advantages over the single-wire technique with the same lever arm length in preventing torque loss and extrusion of the anterior teeth during en masse retraction in lingual orthodontics. | Hung, Bui Quang; Hong, Mihee; Yu, Wonjae; Kyung, Hee-Moon | Kyungpook Natl Univ, Sch Dent, Dept Orthodont, 2177 Dalgubeol Daero, Daegu 41940, South Korea | 57195222295; 57190379016; 14829839400; 7004292284 | hmkyung@knu.ac.kr; | KOREAN JOURNAL OF ORTHODONTICS | KOREAN J ORTHOD | 2234-7518 | 2005-372X | 50 | 1 | SCIE | DENTISTRY, ORAL SURGERY & MEDICINE | 2020 | 1.372 | 91.9 | 0.93 | 2025-06-25 | 8 | 9 | En masse retraction; Lingual; Heat Induction Typodont; Tooth movement | TORQUE CONTROL; LEVER-ARM | En masse retraction; Heat Induction Typodont; Lingual; Tooth movement | English | 2020 | 2020-01 | 10.4041/kjod.2020.50.1.26 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Estimation of the prevalence of malocclusion on the basis of nationwide oral health examinations of pre-adolescent and adolescent students during 2012-2017 | Objective: To investigate the prevalence of malocclusion with respect to grade, sex, and year among Korean pre-adolescent and adolescent students during 2012-2017. Methods: A total of 165,996 students (first grade [E1, 6-7 years of age], fourth grade [E4, 9-10 years], seventh grade [M1, 12-13 years], and tenth grade [H1, 15-16 years]) were selected by stratified sampling method and underwent the nationwide oral health examination performed by the Ministry of Education, Republic of Korea. The malocclusion assessments based on dentists' judgments were "no malocclusion," "needs orthodontic treatment (N-OTx)," and "under orthodontic treatment (U-OTx)." The sum of N-OTx and U-OTx cases was determined as the number of students with malocclusion. After analyzing the prevalence of malocclusion according to grade, sex, and year-by-year differences, Pearson correlation analyses and two-way analyses of variance were performed. Results: The prevalence of malocclusion was 18.7%, which increased with the grades (E1 [8.3%] 0.05) without significant correlation (El, rho= 0.129; E4, rho = -0.495; Ml, rho = 0.406; HI, rho = -0.383; all p > 0.05). The prevalence of malocclusion within each grade group over the six-year period was more prominent in the female (p < 0.0001). Conclusions: Further studies are necessary to modify the malocclusion assessment method to account for specific types of malocclusion in pre-adolescent and adolescent students. | Hong, Mihee; Kyung, Hee-Moon; Park, Hyo-Sang; Yu, Won-Jae; Baek, Seung-Hak | Kyungpook Natl Univ, Sch Dent, Dept Orthodont, Daegu, South Korea; Seoul Natl Univ, Sch Dent, Dept Orthodont, 101 Daehak Ro, Seoul 03080, South Korea; Seoul Natl Univ, Sch Dent, Dent Res Inst, 101 Daehak Ro, Seoul 03080, South Korea | Baek, Seung-Hak/NOE-8444-2025 | 57190379016; 7004292284; 55754836800; 14829839400; 35090967400 | drwhitc@unitel.co.kr;drwhite@unitel.co.kr; | KOREAN JOURNAL OF ORTHODONTICS | KOREAN J ORTHOD | 2234-7518 | 2005-372X | 50 | 3 | SCIE | DENTISTRY, ORAL SURGERY & MEDICINE | 2020 | 1.372 | 91.9 | 0 | 2025-06-25 | 0 | 0 | Prevalence of malocclusion; Nationwide oral health examination; Malocclusion assessment; Preadolescent and adolescent students | ORTHODONTIC TREATMENT NEED; CHILDREN; INDEX | Malocclusion assessment; Nationwide oral health examination; Preadolescent and adolescent students; Prevalence of malocclusion | adolescent; analysis of variance; article; child; controlled study; correlation analysis; decision making; dentist; education; female; health; human; major clinical study; malocclusion assessment; orthodontic procedure; prevalence; school child; South Korea; stratified sample | English | 2020 | 2020-05 | 10.4041/kjod.2020.50.3.197 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Three-dimensional surgical accuracy between virtually planned and actual surgical movements of the maxilla in two-jaw orthognathic surgery | Objective: To investigate the three-dimensional (3D) surgical accuracy between virtually planned and actual surgical movements (SM) of the maxilla in two-jaw orthognathic surgery. Methods: The sample consisted of 15 skeletal Class 111 patients who underwent two-jaw orthognathic surgery performed by a single surgeon using a virtual surgical simulation (VSS) software. The 3D cone-beam computed tomography (CBCT) images were obtained before (TO) and after surgery (T1). After merging the dental cast image onto the TO CBCT image, VSS was performed. SM were classified into midline correction (anterior and posterior), advancement, setback, anterior elongation, and impaction (total and posterior). The landmarks were the midpoint between the central incisors, the mesiobuccal cusp tip (MBCT) of both first molars, and the midpoint of the two MBCTs. The amount and direction of SM by VSS and actual surgery were measured using 3D coordinates of the landmarks. Discrepancies less than 1 mm between VSS and T1 landmarks indicated a precise outcome. The surgical achievement percentage (SAP, [amount of movement in actual surgery/amount of movement in VSS] x 100) (%) and precision percentage (PP, [number of patients with precise outcome/number of total patients] x 100) (%) were compared among SM types using Fisher's exact and Kruskal-Wallis tests. Results: Overall mean discrepancy between VSS and actual surgery, SAP, and PP were 0.13 mm, 89.9%, and 68.3%, respectively. There was no significant difference in the SAP and PP values among the seven SM types (all p > 0.05). Conclusions: VSS could be considered as an effective tool for increasing surgical accuracy. | Hong, Mihee; Kim, Myung-Jin; Shin, Hye Jung; Cho, Heon Jae; Baek, Seung-Hak | Kyungpook Natl Univ, Sch Dent, Dept Orthodont, Daegu, South Korea; Seoul Natl Univ, Sch Dent, Dept Orthodont, 101 Daehak Ro, Seoul 03080, South Korea; Seoul Natl Univ, Sch Dent, Dent Res Inst, 101 Daehak Ro, Seoul 03080, South Korea | ; Baek, Seung-Hak/NOE-8444-2025 | 57190379016; 59074093300; 57219158657; 57219164789; 35090967400 | drwhite@unitel.co.kr; | KOREAN JOURNAL OF ORTHODONTICS | KOREAN J ORTHOD | 2234-7518 | 2005-372X | 50 | 5 | SCIE | DENTISTRY, ORAL SURGERY & MEDICINE | 2020 | 1.372 | 91.9 | 2.04 | 2025-06-25 | 15 | 15 | Three-dimensional analysis; Virtual orthognathic surgery; Surgical movements of the maxilla; Two-jaw orthognathic surgery | PROTOCOL; SPLINT; PREDICTABILITY; SIMULATION; DESIGN | Surgical movements of the maxilla; Three-dimensional analysis; Two-jaw orthognathic surgery; Virtual orthognathic surgery | English | 2020 | 2020-09 | 10.4041/kjod.2020.50.5.293 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Prioritized Data Transmission Mechanism for IoT | This paper proposes a novel data prioritization and transmission mechanism to minimize the number of packets transmitted and reduce network overload using the constrained application protocol (CoAP) in resource-constrained networks. The proposed scheme adopts four classification parameters to classify and prioritize data from a sensor. With the packet prioritization scheme, the sensed data having the lowest priority is only delivered using the proposed keep-alive message notification to decrease the number of packets transmitted. The performance evaluation demonstrates that the proposed scheme shows the improvement of resource utilization in energy consumption, and bandwidth usage compared with the existing CoAP methods. Furthermore, the proposed scheme supports quality-of-service (QoS) per packet by differentiating transmission delays regarding priorities. | Jung, Changsu | Kyungpook Natl Univ, Sch Comp Sci & Engn, Daegu 41566, South Korea | 56996651900 | jungchangsu@gmail.com; | KSII TRANSACTIONS ON INTERNET AND INFORMATION SYSTEMS | KSII T INTERNET INF | 1976-7277 | 14 | 6 | SCIE | COMPUTER SCIENCE, INFORMATION SYSTEMS;TELECOMMUNICATIONS | 2020 | 0.858 | 92.2 | 0.26 | 2025-06-25 | 2 | 6 | Constrained Application Protocol (CoAP); 6LoWPAN; Bluetooth Low Energy; Prioritization; Internet of Things (IoT) | INTERNET; COAP; THINGS; WEB; 6LOWPAN; PROTOCOL; SYSTEM | 6LoWPAN; Bluetooth Low Energy; Constrained Application Protocol (CoAP); Internet of Things (IoT); Prioritization | Energy utilization; Quality of service; Classification parameters; Constrained Application Protocol (CoAP); Data transmission mechanisms; Packet prioritization; Resource utilizations; Resource-constrained network; Transmission delays; Transmission mechanisms; Internet of things | English | 2020 | 2020-06-30 | 10.3837/tiis.2020.06.002 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Speaker Adaptation Using i-Vector Based Clustering | We propose a novel speaker adaptation method using acoustic model clustering. The similarity of different speakers is defined by the cosine distance between their i-vectors (intermediate vectors), and various efficient clustering algorithms are applied to obtain a number of speaker subsets with different characteristics. The speaker-independent model is then retrained with the training data of the individual speaker subsets grouped by the clustering results, and an unknown speech is recognized by the retrained model of the closest cluster. The proposed method is applied to a large-scale speech recognition system implemented by a hybrid hidden Markov model and deep neural network framework. An experiment was conducted to evaluate the word error rates using Resource Management database. When the proposed speaker adaptation method using i-vector based clustering was applied, the performance, as compared to that of the conventional speaker-independent speech recognition model, was improved relatively by as much as 12.2% for the conventional fully neural network, and by as much as 10.5% for the bidirectional long short-term memory. | Kim, Minsoo; Jang, Gil-Jin; Kim, Ji-Hwan; Lee, Minho | Kyungpook Natl Univ, Sch Elect Engn, 80 Daehakro, Daegu 41566, South Korea; Sogang Univ, Dept Comp Sci & Engn, 35 Baekbeom Ro, Seoul 04107, South Korea | Lee, Min-Ho/ABE-5735-2021 | 57219221740; 7102646102; 55720061900; 57191730119 | minsookim@knu.ac.kr;gjang@knu.ac.kr;kimjihwan@sogang.ac.kr;mholee@gmail.com; | KSII TRANSACTIONS ON INTERNET AND INFORMATION SYSTEMS | KSII T INTERNET INF | 1976-7277 | 14 | 7 | SCIE | COMPUTER SCIENCE, INFORMATION SYSTEMS;TELECOMMUNICATIONS | 2020 | 0.858 | 92.2 | 0.07 | 2025-06-25 | 0 | 2 | Speaker adaptation; speech recognition; i-vector; clustering; hybrid HMM-DNN | Clustering; Hybrid HMM-DNN; I-vector; Speaker adaptation; Speech recognition | Clustering algorithms; Deep neural networks; Hidden Markov models; Neural networks; Vectors; Based clustering; Clustering results; Resource management; Speaker adaptation; Speaker independent model; Speaker-independent speech recognition; Speech recognition systems; Word error rate; Speech recognition | English | 2020 | 2020-07-31 | 10.3837/tiis.2020.07.003 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Characterizations of a New Tl-based Elpasolite Scintillator: Tl2LiScCl6 | A new Tl2LiScCl6 (TLSC) single crystal was grown by using the two-zone vertical Bridgman method. The TLSC belongs to the cubic chloro-elpasolite crystal family. Under X-ray excitation at room temperature, an emission spectrum from 300 to 550 nm was obtained, with the maximum emission being at 385 nm. The scintillation properties, such as the energy resolution, light yield and decay time of the TLSC crystal, were measured at room temperature by using a Cs-137 gamma-ray source. The energy resolution at the 662 keV photopeak was found to be 8.3% (full width at half maximum). Using the LYSO light yield as a reference, we obtained the light yield of the TLSC crystal as 26000 +/- 2600 ph/MeV under excitation by 662 keV gamma-rays. The developed crystal shows a single exponential decay time of 1.147 mu s under 662 keV gamma-ray excitation from a Cs-137 source. Due to the high effective Z-number (67) and density of the TLSC crystal, it can be used for efficient detection of X- and gamma-rays in various applications. It also has a potential to be used for detection of thermal neutrons via the Li-6(n, alpha) reaction. Further improvements in the scintillation properties are expected with rare-earth doping in this compound, which is the subject of our future work. | Kim, MinJeong; Kim, H. J.; Cho, J. Y.; Khan, Arshad; Daniel, D. Joseph; Rooh, Gul | Korea Hydro & Nucl Power Co, Cent Res Inst, Daejeon 34101, South Korea; Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea; Abdul Wali Khan Univ, Dept Phys, Mardan 23200, Pakistan | ; Kim, Hong Joo/AAE-1178-2022; Rooh, Gul/AAF-2076-2019; Khan, Arshad/ABB-1566-2021 | 57215818497; 59051568100; 57204422573; 56017063700; 35319662800; 24401665700 | hongjoo@knu.ac.kr; | JOURNAL OF THE KOREAN PHYSICAL SOCIETY | J KOREAN PHYS SOC | 0374-4884 | 1976-8524 | 76 | 8 | SCIE | PHYSICS, MULTIDISCIPLINARY | 2020 | 0.649 | 92.4 | 0.27 | 2025-06-25 | 5 | 7 | Tl2LiScCl6; Light yield; Energy resolution; Effective Z-number; Decay time | ENERGY-RESOLUTION | Decay time; Effective Z-number; Energy resolution; Light yield; Tl<sub>2</sub>LiScCl<sub>6</sub> | English | 2020 | 2020-04 | 10.3938/jkps.76.706 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Fuzzy Dark Matter from Clockwork Axion Model | We consider in the clockwork axion model the realization of an ultralight axion which can serve as a fuzzy dark matter candidate. With the mixing terms between adjacent axions, the shift symmetries are broken except for one, which is responsible for the ultralight axion and its mass can be as light as 10(-21) eV. This ultralight axion can satisfy easily the observed dark matter abundance and the isocurvature bound. The heavier axions resulting from the clockwork gears quickly decay before the big bang nucleosynthesis. | Bae, Kyu Jung; Gong, Jinn-Ouk | Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea; Ewha Womans Univ, Dept Sci Educ, Seoul 03760, South Korea | 56050180300; 7402707824 | kyujung.bae@knu.ac.kr;jgong@ewha.ac.kr; | JOURNAL OF THE KOREAN PHYSICAL SOCIETY | J KOREAN PHYS SOC | 0374-4884 | 1976-8524 | 77 | 12 | SCIE | PHYSICS, MULTIDISCIPLINARY | 2020 | 0.649 | 92.4 | 0 | 2025-06-25 | 0 | 0 | Axion; Dark matter; Clockwork; Fuzzy dark matter | INVARIANCE; INFLATION; BREAKING; HALO | Axion; Clockwork; Dark matter; Fuzzy dark matter | English | 2020 | 2020-12 | 10.3938/jkps.77.1107 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Gravitational Wave from Cosmic Inflation in a Gravity with Two Small Four-derivative Corrections | We investigate a model of inflationary cosmology where the minimally coupled scalar field theory is modified by additional correction terms. Among the most general ten correction terms remarked by Weinberg in context of effective field theory, we consider only two terms, f(1)(phi)R-2 and f(2)(phi)(RRab)-R-ab, following the work by Noh and Hwang where f(1) and f(2) are constant. The fourth order differential equations for the background universe and the tensor-type perturbation are derived out of this model. We show that these equations can be reduced to second order equations, supposing that f(n) are small. From these approximated equations, we find that the propagation speed of gravitational wave is slightly less than the speed of light due to f(2) term, and that the evolution of the tensor-type perturbation is conserved in the large scale limit. | Yun, Chae-min | Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea | 57820363900 | scspase@knu.ac.kr; | JOURNAL OF THE KOREAN PHYSICAL SOCIETY | J KOREAN PHYS SOC | 0374-4884 | 1976-8524 | 76 | 4 | SCIE | PHYSICS, MULTIDISCIPLINARY | 2020 | 0.649 | 92.4 | 0.07 | 2025-06-25 | 2 | 2 | Cosmology; Inflation; Perturbation theory; Gravitational wave | Cosmology; Gravitational wave; Inflation; Perturbation theory | English | 2020 | 2020-02 | 10.3938/jkps.76.292 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Implementation of a Sinusoidal Raster Scan for High-Speed Atomic Force Microscopy | To improve the speed of an atomic force microscope (AFM), one must improve the bandwidth of its components, and the lateral XY scanner is no exception. Sinusoidal raster scans provide a simple way of improving lateral scan rates without the need for additional hardware and/or complex control algorithms. However, a raster scan using a sinusoidal waveform leads to a non-uniform probesample velocity. Uniform spatial sampling of scan data can be achieved in this case by varying the sampling rate as the probe sample velocity varies. In this work, we present a field-programmable gate array (FPGA)-based implementation of a sinusoidal raster scan with uniform spatial sampling for a high-speed atomic force microscope (HS-AFM). Using a home-made HS-AFM scanner and a custom controller, we demonstrate the performance of our approach by imaging Blu-ray disk data tracks in the contact mode. While the results show images comparable to those acquired using the traditional triangular raster scans, mirroring effects are better suppressed in high-speed imaging with sinusoidal scan signals. | Otieno, Luke Oduor; Lee, Yong Joong; Alunda, Bernard Ouma | Kyungpook Natl Univ, Sch Mech Engn, Daegu 41566, South Korea; Taita Taveta Univ, Sch Mines & Engn, POB 635-80300, Voi, Kenya | Otieno, Luke/KHW-8698-2024 | 57205578290; 57183248500; 55354745500 | yjlee76@knu.ac.kr; | JOURNAL OF THE KOREAN PHYSICAL SOCIETY | J KOREAN PHYS SOC | 0374-4884 | 1976-8524 | 77 | 7 | SCIE | PHYSICS, MULTIDISCIPLINARY | 2020 | 0.649 | 92.4 | 0.07 | 2025-06-25 | 1 | 1 | High-speed atomic force microscopy; Sinusoidal raster scan; FPGA | FPGA; High-speed atomic force microscopy; Sinusoidal raster scan | English | 2020 | 2020-10 | 10.3938/jkps.77.605 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
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