• Title/Summary/Keyword: Vertical Enclosing

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Arthroscopic Vertical Enclosing Meniscus Suture -Technical Note- (관절경하 반월상연골의 수직 포위 봉합술 - 수술 수기 -)

  • Kim Jung-Man;Jahng Yoon-Jong
    • Journal of the Korean Arthroscopy Society
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    • v.7 no.2
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    • pp.230-232
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    • 2003
  • To avoid incomplete coaptation of the peripheral tear of the meniscus an arthroscopic vertical enclosing meniscus suture technique was developed. In this technique the meniscus was not penetrated with any instruments or suture materials. This technique seems to be simple and easy to learn and to practice.

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Study on Shinyeojuryeom through Historical Documents and Scientific Analysis (문헌자료와 유물의 과학적 조사를 통한 신여주렴(神輿朱簾)의 연구)

  • Kim, Sunyoung
    • Journal of the Korean Society of Costume
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    • v.62 no.8
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    • pp.19-27
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    • 2012
  • Shinyeojuryeom is a set of bamboo blinds[Juryeom] enclosing the Korean litter for transporting a mortuary tablet of royal family[Shinyeo] in Joseon dynasty. The blinds were made up of twigs laid horizontally which were joined together by vertical threading, then they were lined and backed with silk fabric. A number of historical documents such as Gukjosangryebopyeon(1758), JeongjoGukjangdogameuigwe(1800) and Gukjangdogam- myeongseseo(1905) provide information on material and structure of the litter and blinds. How- ever, detailed dimensions or specific ingredients of some of the materials were not clearly explained. In order to complement these missing or unclear parts, a close examination and scientific analysis of the litter's material was undertaken. The result newly identified materials of the gold tip tassels and pigments used on twigs as well as partly confirmed information on historical records. This new information will help further understanding and future production of a replica.

(Image Analysis of Electrophoresis Gels by using Region Growing with Multiple Peaks) (다중 피크의 영역 성장 기법에 의한 전기영동 젤의 영상 분석)

  • 김영원;전병환
    • Journal of KIISE:Software and Applications
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    • v.30 no.5_6
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    • pp.444-453
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    • 2003
  • Recently, a great interest of bio-technology(BT) is concentrated and the image analysis technique for electrophoresis gels is highly requested to analyze genetic information or to look for some new bio-activation materials. For this purpose, the location and quantity of each band in a lane should be measured. In most of existing techniques, the approach of peak searching in a profile of a lane is used. But this peak is improper as the representative of a band, because its location does not correspond to that of the brightest pixel or the center of gravity. Also, it is improper to measure band quantity in most of these approaches because various enhancement processes are commonly applied to original images to extract peaks easily. In this paper, we adopt an approach to measure accumulated brightness as a band quantity in each band region, which Is extracted by not using any process of changing relative brightness, and the gravity center of the region is calculated as a band location. Actually, we first extract lanes with an entropy-based threshold calculated on a gel-image histogram. And then, three other methods are proposed and applied to extract bands. In the MER method, peaks and valleys are searched on a vertical search line by which each lane is bisected. And the minimum enclosing rectangle of each band is set between successive two valleys. On the other hand, in the RG-1 method, each band is extracted by using region growing with a peak as a seed, separating overlapped neighbor bands. In the RG-2 method, peaks and valleys are searched on two vertical lines by which each lane is trisected, and the left and right peaks nay be paired up if they seem to belong to the same band, and then each band region is grown up with a peak or both peaks if exist. To compare above three methods, we have measured the location and amount of bands. As a result, the average errors in band location of MER, RG-1, and RG-2 were 6%, 3%, and 1%, respectively, when the lane length is normalized to a unit value. And the average errors in band amount were 8%, 5%, and 2%, respectively, when the sum of band amount is normalized to a unit value. In conclusion, RG-2 was shown to be more reliable in the accuracy of measuring the location and amount of bands.