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Browsing by Author "Junseong Kim"

Browsing by Author "Junseong Kim"

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  • 16-QAM에 적합한 이진 극 부호 설계 
    Sungyeol Back; Junseong Kim; Suyong Choi; Oh Wangrok (한국통신학회, 2022-02)
    이진 극 부호 (binary polar code) 설계과정에서는 각각의 부호 비트 (coded bit)가 전송되는 채널의 신뢰도(reliability)가 동일하다는 가정이 사용된다. 한편, 고차원 변조 (high order modulation) 방식을 사용할 경우 변조심볼 매핑 방법에 따라 각 심볼에 매핑된 부호 비트들의 신뢰도에 차이가 발생한다. 따라서 이진 극 부호와 고차원 변조를 사용할 ...
  • 5-bromoprotocatechualdehyde suppresses growth of human lung cancer cells through modulation of ROS and the AKT/MAPK signaling pathway 
    Junseong Kim; Soo-Jin Heo; Eun-A Kim; Nalae Kang; Seong-Yeong Heo (The Korean Society for Marine Biotechnology, 2024-12)
    Early-stage lung cancer is the deadliest form of the disease. In this study, we investigated the anticancer activity of 5-bromoprotocatechualdehyde (BPCA) extracted from the seaweed Polysiphonia morrowii Harvey (P. morrowii) ...
  • 5G NR PBCH 데이터의 부반송파 매핑 방법 수정을 통한 복호 성능 개선 기법 
    Junseong Kim; Sungyeol Back; Suyong Choi; Oh Wangrok (한국통신학회, 2021-10)
    5G NR (new radio) 시스템의 기지국은 SFN (system frame number), 부반송파 간격, DMRS (demodulation reference signal) 위치 등의 정보를 SSB (synchronization signal block) 내의 PBCH (physical broadcast channel) 를 통해 주기적으로 송신한다. 극 부호 (polar code)를 통해 ...
  • 5G NR PRACH 프리앰블을 이용한 낮은 복잡도의 왕복 시간 추정기법 
    Suyong Choi; Junseong Kim; Sungyeol Back; Oh Wangrok (한국통신학회, 2022-02)
    5G NR (new radio) 시스템에서 기지국 기준시간 동기를 획득한 단말은 상향링크 (uplink)의 자원을 할당받기위해 Zadoff-Chu (ZC) 시퀀스 (sequence)에 기반한 PRACH (physical random access channel) 프리앰블을 전송한다. 5G NR 시스템의 기지국에서는 기지국 기준 PRACH 프리앰블 전송 구간 동안 수신된 신호를 통해 전력 지연 ...
  • A simulation study on the variation of virtual NMR signals by winding, bobbin, spacer error of HTS magnet 
    Junseong Kim; Woo Seung Lee; Jinsub Kim; Seunghyun Song; Seokho Nam; Haeryong Jeon; Geonwoo Baek; Tae Kuk Ko (한국초전도.저온공학회, 2016-09)
    Recently, production technique and property of the High-Temperature Superconductor (HTS) tape have been improved. Thus,the study on applying an HTS magnet to the high magnetic field application is rapidly increased. A ...
  • Anti-inflammatory Activity on LPS-stimulated in vitro RAW 264.7 Cells and in vivo Zebrafish of Heterosigma akshiwo 
    Junseong Kim; Youn Kyung Choi; 이지혁; Seo-Young Kim; Hyun-Soo Kim; You-Jin Jeon; Soo-Jin Heo (Journal Of Chitin And Chitosan, 2017-09)
    Red tide Heterosigma akashiwo (H. akashiwo), a microscopic alga of the class Raphidophyceae, causes extensive damage to all marine ecosystems. It is essential to reduce the damage to marine ecosystems for them to be used ...
  • Comparative Analysis of Serum C-reactive Protein Levels and Respiratory Diagnostic Test Results in Active Tuberculosis Patients and Latent Tuberculosis Infection Groups 
    Yu Rim Lee; Heechul Park; Yun-Jeong Kang; Sung-Bae Park; Junseong Kim; Jiyoung Lee; Jungho Kim; Sunghyun Kim (The Korean Society For Biomedical Laboratory Sciences, 2024-12)
    Objectives: Tuberculosis (TB) is an infectious disease caused by Mycobacterium tuberculosis (MTB) bacteria. According to a World Health Organization report, a third of the world’s population has latent TB infection (LTBI), ...
  • Distribution of Coagulase-Negative Staphylococci and Antibiotic Resistance 
    Heechul Park; Sungbae Park; Junseong Kim; Kim， Sunghyun (The Korean Society For Biomedical Laboratory Sciences, 2021-06)
    Coagulase-negative staphylococci (CoNS) are a typical group of microorganisms, and the recent advances in laboratory technology and medicine has dramatically modified their significance in medical practice. CoNS, which ...
  • Evaluation of an Appropriate Replacement Cycle for Copper Antibacterial Film to Prevent Secondary Infection 
    Min-A Je; Heechul Park; Junseong Kim; Eun Ju Lee; Minju Jung; Minji Kim; Mingyoung Jeong; Jiyun Yun; Hayeon Sin; Hyun-Woo Jin; Kyung Eun， Lee; Kim， Jung-Ho (The Korean Society For Biomedical Laboratory Sciences, 2022-09)
    The use of copper antibacterial films as an effective infection prevention method is increasing owing to its ability to reduce the risk of pathogen transmission. In this study, we evaluated the bacterial contamination of ...
  • Hall voltage measurement with respect to internal layout of REBCO coated conductors in an external magnetic field 
    Young Gon Kim; Geonwoo Baek; Seunghak Han; Yojong Choi; Junseong Kim; Haeryong Jeon; Tae Kuk Ko (한국초전도.저온공학회, 2019-12)
    Recently, many studies have been reported on the magnetoresistance and Hall effect of REBCO thin films and bulk. The voltage interferes quench detection of high-temperature superconducting magnet and generates leakage ...
  • Induction of Apoptosis by the Tropical Seaweed Pylaiella littoralis in HT-29 Cells via the Mitochondrial and MAPK Pathways 
    Bo-Ram Ye; Junseong Kim; 김민선; Jiyi Jang; Chulhong Oh; Do-Hyung Kang; Zhong-Ji Qian; WON-KYO JUNG; Il-Whan Choi; Soo-Jin Heo (Korea Institute of Ocean Science & Technology, 2013-12)
    We demonstrated that an extract from Pylaiella littoralis, collected from the Federate States of Micronesia (FSM), could inhibit the proliferation of tumor cells. P. littoralis extract (PLE) showed anti-proliferative ...
  • Molecular Genetic Characteristics of Methicillin-Resistant Staphylococcus aureus Isolated from University Campus Environment and Students 
    Heechul Park; Sungbae Park; Junseong Kim; Hyeonjeong Jeon; Sein Choi; Seungyeon Lee; Eunchong Oh; Soenghwi Hwang; Hyunjung Kim; Kim， Jung-Ho; Kim， Sunghyun (The Korean Society For Biomedical Laboratory Sciences, 2020-09)
    Staphylococcus aureus (S. aureus) is known as a bacterium that can cause skin infections, respiratory system infections, and sinusitis; however, it can exist as a normal flora rather than a pathogen. Recently, methicilli ...
  • Optimal Guidance Law for Impact Angle and Acceleration Constraints with Time-Varying Gains 
    Junseong Kim; SUNGJIN CHO (The Korean Society For Aeronautical And Space Sciences, 2022-07)
    In this paper, we establish an optimal guidance law for impact angle and acceleration constraints (OGL-IAAC). The optimal guidance law for impact angle (OGL) is widely used due to its energy optimality and analytic solutions. ...
  • Red Sea Cucumber (Stichopus japonicus) Suppresses Cancer Progression by Promoting the ROS-Mediated Inhibition of the MAPK Pathway 
    Junseong Kim; Eun-A Kim; Kang Nalae; Youn Kyung Choi; Soo-Jin Heo (The Korean Society for Marine Biotechnology, 2020-12)
    Stichopus japonicas (red sea cucumbers) inhabit the coastal sea surrounding Jeju Island, South Korea, and are thought to have various medicinal properties. In this study, we investigated the anticancer activity of a red ...
  • Static Load Analysis of Twin-screw Kneaders 
    Jing Wei; Lyu Sung Ki; Guang-Hui Zhang; Qi Zhang; Junseong Kim (Korean Society for Precision Engineering, 2008-07)
    A static load analysis of twin-screw kneaders is required not only for the dynamic analysis, but also because it is the basis of the stiffness and strength calculations that are essential for the design of bearings. In ...
  • 바닷물을 이용한 NaBH4 가수분해에 의한 수소발생 
    Daewoong Lee; Sohyeong Oh; Junseong Kim; Dongho Kim; Park，Kwon-Pil (The Korean Institute of Chemical Engineers, 2019-12)
    이동용 고분자전해질 연료전지(PEMFC)의 수소발생용으로써 NaBH4는 많은 장점을 갖고 있다. 해상용으로 PEMFC 가 사용될 때 해수를 이용해 NaBH4를 가수분해 하면 경제적이다. 그래서 본 연구에서는 NaBH4가수분해 과정에 증류수대신 해수를 이용해 수소를 발생시켰다. 활성탄 담지 Co-B/C 촉매를 사용해 NaBH4 가수분해 특성에 대해 연구하였다. 해수 사용시 NaBH4농도와 ...
  • 밭 노지 환경 주행을 위한 모듈형 농업 로봇 플랫폼에 대한 연구 
    Yong-Jun Cho; Seong-Yong Woo; Suhwan Song; Hyung-Gil- Hong; Haeyong Yun; Jang-Seok Oh; Junseong Kim; Dong Woo Kim; Kap-Ho Seo; Dae Hee Kim (Korea Robotics Society, 2020-05)
    This paper designed modular agricultural robotic platform capable of a variety of agricultural tasks to address the problems caused by a decline in agricultural populations and an increase in average age. We propose a ...
  • 선형 오일러 방정식을 이용한 노즐의 연소불안정 감쇠 효과 평가 
    Junseong Kim; Heejang Moon (The Korean Society of Propulsion Engineers, 2019-12)
    노즐 내 파동은 노즐목을 빠져나가는 유동의 공력음향학적인 효과로 인해 연소불안정을 감쇠시키는 주요 요소 중 하나로 알려져 있다. 이와 같은 효과는 노즐 어드미턴스라는 지표를 통해 정량적으로 평가가 가능하다. 본 연구에서는 현재까지 로켓 연소불안정 억제에 가장 효과적인 노즐감쇠(nozzle damping)와 연계된 노즐 어드미턴스를 구하는 여러 기법을 소개한다. 이중, 가장 널리 알려진 1차원 ...
  • 연접 및 자름 기반 코드 설계를 위한 후보 골드 코드 군 선택 기법 
    Sungyeol Back; Junseong Kim; Suyong Choi; Oh Wangrok (Institute of Control, Robotics and Systems, 2021-11)
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  • 입자 크기 분포도를 고려한 고체로켓 모터의 연소 불안정 민감도 예측 
    주성민; Junseong Kim; Heejang Moon; Won Suk Ohm; 이도형 (The Korean Society of Propulsion Engineers, 2015-10)
    본 논문에서는 음향 불안정 해석 기법을 이용하여 알루미늄 입자가 내포된 고체로켓 모터의 연소 불안정 현상을 예측하였다. 특히, 알루미늄 입자들의 로그정규분포 대비 단일 크기의 입자 분포가 연소 불안정 감쇠에 미치는 영향을 비교하여 각각의 민감도를 분석하였으며 고체로켓 모터의 길이 스케일 변화에 따른 음향 감쇠 효과를 단일 입자 크기를 가정한 경우와 비교하였다. 입자에 의한 감쇠는 불안정 모드 ...

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