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김신아,최정인,김은솔,금기범,두현옥,곽진옥,류수민,최예진,Sriniwas Pandey,이나래,강주연,이유정,김동준,설국환,강선문,배인선,조수현,권효정,정사무엘,이영원,김현범 충남대학교 농업과학연구소 2023 Korean Journal of Agricultural Science Vol.50 No.4
This study was conducted to find out the correlation between meat quality and muscle fat ratio in pork part meat (pork belly and shoulder butt) using CT (computed tomography) imaging technique. After 24 hours from slaughter, pork loin and belly were individually prepared from the left semiconductors of 26 pigs for CT measurement. The image obtained from CT scans was checked through the picture archiving and communications system (PACS). The volume of muscle and fat in the pork belly and shoulder butt of cross-sectional images taken by CT was estimated using Vitrea workstation version 7. This assemblage was further processed through Vitrea post-processing software to automatically calculate the volumes (Fig. 1). The volumes were measured in milliliters (mL). In addition to volume calculation, a three-dimensional reconstruction of the organ under consideration was generated. Pearson's correlation coefficient was analyzed to evaluate the relationship by region (pork belly, pork shoulder butt), and statistical processing was performed using GraphPad Prism 8. The musclefat ratios of pork belly taken by CT was 1 : 0.86, while that of pork shoulder butt was 1 : 0.37. As a result of CT analysis of the correlation coefficient between pork belly and shoulder butt compared to the muscle-fat ratio, the correlation coefficient was 0.5679 (R2 = 0.3295, p < 0.01). CT imaging provided very good estimates of muscle contents in cuts and in the whole carcass.
Gateway 방식에서 SIP Fraud Call 공격기법 관한 연구
양종성 ( Jong-sung Yang ),최형기 ( Hyoung-kee Choi ),장학범 ( Hak-beom Jang ),강성용 ( Sung-yong Kang ),금기호 ( Ki-ho Gum ) 한국정보처리학회 2011 한국정보처리학회 학술대회논문집 Vol.18 No.1
최근 VoIP 서비스는 IP 네트워크의 안정화를 기반으로 국내 기업 Legacy PSTN 시장을 빠르게 대체해 가고 있다. 그러나 VoIP 서비스는 기존 인터넷망에서 발생 할 수 있는 보안 취약성 뿐 아니라 인터넷 전화 트래픽의 통과 문제 및 VoIP 스팸이나 도청 같은 기존에 없었던 새로운 이슈들을발생 시키고 있다. 특히 SIP 인증 취약점을 이용한 Fraud Call 공격은 VoIP 서비스 사용자로 하여금 원하지 않은 호 및 과금을 대량 발생 시키는 공격기법으로 최근 기업의 피해사례가 늘어 나고 있다. 본 논문은 Fraud Call 의 공격 기법을 분석하고, 호 인증 측면에서의 보안적 대응방안을 기술하고자 한다.