• Title/Summary/Keyword: Jae-sil

Search Result 865, Processing Time 0.028 seconds

Nephrotoxicity Studies of 3-Monochloropropane-1,2-diol

  • Yum, Young-Na;Oh, Jae-Ho;Kim, Sheen-Hee;Hwang, Myung-Sil
    • Proceedings of the Korean Society of Toxicology Conference
    • /
    • 2003.10b
    • /
    • pp.194-194
    • /
    • 2003
  • Certain chlorinated propanols occur as contaminants in hydrolysed vegetable proteins. Processing of defatted vegetable proteins by traditional hydrochloric acid hydrolysis leads to the formation of 3-MCPD. The objective of this study was to determine the nephrotoxicity of 3-MCPD.(omitted)

  • PDF

Comparison of liquid chromatographic enantiomer resolution of racemic amino compounds on chiral stationary phases of crown ether type

  • Lee, Won-Jae;Baek, Chae-Sun;Kim, Ji-Yeon
    • Proceedings of the PSK Conference
    • /
    • 2003.04a
    • /
    • pp.285.1-285.1
    • /
    • 2003
  • ChiroSil RCA(+) and SCA(-) HPLC chiral stationary phases (CSPs) developed by covalently bonding (+)- and (-)-(18-crown-6)-2,3,11,12-tetracarboxylic acid (18-C-6-T A) to silica gel were employed for enantioresolution of racemic amino compounds, respectively. Also, these 18-C-6-TA covalently bonded CSPs were compared to a commercially available Crownpak CR CSP prepared by coating chiral crown ether as a chiral selector on ODS column. (omitted)

  • PDF

Summary of Maritime Cyber Attacks and Risk Management

  • Al-Absi, Mohammed Abdulhakim;Al-Absi, Ahmed Abdulhakim;Kim, Ki-Hwan;Lee, Young-Sil;Lee, Hoon Jae
    • International journal of advanced smart convergence
    • /
    • v.11 no.3
    • /
    • pp.7-16
    • /
    • 2022
  • The targets of cyber-attacks are not limited to the websites and internal IT systems of shipping agencies. Ships and ports have become important targets for cyber attackers. This paper examines the current state of ship network security, introduces the International Maritime Organization's resolution on ship network security management, and summarizing the cyber-attacks in maritime so the readers can have a general understanding of maritime environment.

On A Reduction of Pitch Searching Time by Preprocessing in the CELP Vocoder (CELP 보코더에서 전처리에 의한 피치검색 시간의 단축)

  • Kim, Dae-Sik;Bae, Myeong-Jin;Kim, Jong-Jae;Byun, Kyung-Jin;Han, Ki-Chun;Yoo, Hah-Young
    • The Journal of the Acoustical Society of Korea
    • /
    • v.13 no.3
    • /
    • pp.33-40
    • /
    • 1994
  • Code Excited Linear Prediction(CELP) speech coders exhibit good performance at data rates below 4.8 kbps. This major drawback of CELP type coders is required much computation. In this paper, we propose a new pitch search method that preserves the quality of the CELP vocoder with reducing complexity. In the pitch searching, we detect the segments of high correlation by a simple preprocessing, and then carry out the pitch searching only for the segments obtained by the preprocessing. By using the proposed method, we can get approximately $77\%$ complexity reduction in the pitch search.

  • PDF

Preceding Studies for Questionnaires on Han-Yol Patternization (한열변증 설문지 개발을 위한 한열 고찰)

  • Bae, No-Soo;Park, Young-Jae;Oh, Hwan-Sup;Park, Young-Bae
    • The Journal of the Society of Korean Medicine Diagnostics
    • /
    • v.9 no.1
    • /
    • pp.98-111
    • /
    • 2005
  • Background and purpose: The Han(cold)-Yol(heat) patternization is one of the most usually used diagnostic methods in oriental medicine. This is preceding studies for compensating questionnaries on Han-Yol that were made by sook-kyeng Kim. Methods: Questionnaries on Han-Yol that will be worked out should be useful for clinical examination. So We selected symptoms based on Donguibogam that is regarded as a clinical textbook in Korea. Results: It is expected that not only Sil-Yol but also Hu-Yol and Yol combined with Han can be diagnosed by new questionnaries. Conclusion: These symptoms based on Donguibogam will be made into questionnaries that can diagnose not only Sil-Yol but also Hu-Yol and Yol combined with Han.

  • PDF

The Electrical Characterization and Relaxation Behavior of Ag(Ta0.8Nb0.2)O3 Ceramics

  • Kim, Young-Sung;Kim, Jae-Chul;Jeong, Tae-Hoon;Nam, Sung-Pill;Lee, Seung-Hwan;Kim, Hong-Ki;Lee, Ku-Tak
    • Transactions on Electrical and Electronic Materials
    • /
    • v.15 no.2
    • /
    • pp.100-102
    • /
    • 2014
  • $Ag(Ta,Nb)O_3$ materials have a perovskite structure with a low loss tangent. These materials have been widely researched for their applications as high-frequency, passive components. Also, $Ag(Ta,Nb)O_3$ materials have weak frequency dispersion with high dielectric permittivity which gives them enormous potential for use in electronic components, including the filters, and embedded capacitors. Therefore, our research will discuss the structural and electrical relaxation properties of $Ag(Ta_{0.8}Nb_{0.2})O_3$ ceramics for device applications. We will investigate using X-ray diffraction to understand their structural properties and will analyze voltage dependent leakage current and timedependent relaxation behavior to understand their material properties.

Analysis on Application Location of SFCL according to Circuit Breaker Burden Index with Weight Factor Estimation (차단기 부담 평가지표의 가중치 산정에 따른 초전도 한류기 적용위치 분석)

  • Park, Han-Min;Lee, Hyeong-Jin;Kim, Jin-Seok;Lim, Sung-Hun;Kim, Jae-Chul
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
    • /
    • v.29 no.7
    • /
    • pp.47-53
    • /
    • 2015
  • As the industrial development in Korea, the power demand is rapidly increased. The power system has been extended and complicated to meet the power demand. However, the fault current increases because the structure of power system reduces the equivalent impedance. One of the solutions to reduce the fault current is Superconducting Fault Current Limiter(SFCL) and the researches of SFCL application have much conducted. In this paper, we used the Circuit Breker Burden Index(CBBI) to select application location of SFCL because the CBBI may consider a fault current of each line. In addition, this paper divided the weight factor used to calculate the CBBI on a case by case basis and analyzed this characteristics through experiment.