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오류정정부호가 적용된 MIMO 시스템의 반복 수신기 구조의 성능평가
이유성,권동승,박현철,송봉섭,김재홍 에스케이텔레콤 (주) 2006 Telecommunications Review Vol.16 No.5
본 논문에서는 오류정정부호가 적용된 다중입출력 시스템의 성능개선을 위한 방안으로 반복복호 기법에 관하여 고찰한다. Turbo principle 기반의 반복복호 기법과 간섭제거 기반의 반복복호 방식의 차이점을 서술한다. 오류정정 부호를 이용하는 다중입출력 시스템에서 이 두가지 방식을 적용하여 성능을 평가한다.
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Oncologic Outcomes of Stage IIIA Colon Cancer for Different Chemotherapeutic Regimens
이유성,김희철,Kyung Ook Jung,Yong Beom Cho,Seong Hyeon Yun,이우용,Ho-Kyung Chun 대한대장항문학회 2012 Annals of Coloproctolgy Vol.28 No.5
Purpose: Adjuvant chemotherapy is currently recommended for Stage IIIA colon cancers. This study aimed to elucidate the oncologic outcomes of Stage IIIA colon cancer according to the chemotherapeutic regimen based on a retrospective review. Methods: From 1995 to 2008, Stage IIIA colon cancer patients were identified from a prospectively maintained database at a single institution. Exclusion criteria were as follows: rectal cancer, another malignancy other than colon cancer, no adjuvant chemotherapy and unknown chemotherapeutic regimen. One hundred thirty-one patients were enrolled in the study,and the clinicopathologic and the oncologic characteristics were analyzed. The number of males was 72, and the number of females was 59; the mean age was 59.5 years (range, 25 to 76 years), and the median follow-up period was 33 months (range,2 to 127 months). Results: Of the 131 patients, fluorouracil/leucovorin (FL)/capecitabine chemotherapy was performed in 109 patients, and FOLFOX chemotherapy was performed in 22 patients. When the patients who received FL/capecitabine chemotherapy and the patients who received FOLFOX chemotherapy were compared, there was no significant difference in the clinicopathologic factors between the two groups. The 5-year overall survival and the 5-year disease-free survival were 97.2% and 94.5%in the FL/capecitabine patient group and 95.5% and 90.9% in the FOLFOX patient group, respectively, and no statistically significant differences were noted between the two groups. Conclusion: Stage IIIA colon cancer showed good oncologic outcomes, and the chemotherapeutic regimen did not seem to affect the oncologic outcome.
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李惟性 全北大學校 生物學硏究所 1982 生物學硏究年報 Vol.3 No.-
전북대학교내에 계통분류학 특성화 기초과학연구소가 생긴 것은 계통분류학자로서 무척 반갑고 다행으로 생각한다. 오히려 늦은 감은 있으나 침체된 분야에 활력을 불어 넣을 역할에 대하여 자못 기대가 크다. 오늘 논의하고자 하는 제목은[계통분류학의 최신동향과 전망]인데, 너무 머리가 거창하여 말하는 사람에 따라서는 전혀 다른 얘기가 될 수 있는, 말하자면 장님이 코끼리 더듬는 식의 얘기밖에는 안될 것 같아 약간의 두려움이 앞선다. 그러나 제 나름대로 요즈음 논의되는 hot topics 몇 개를 골라 애기하는 것이 곧 동향이 될 것 같아 4가지를 준비했다. 즉 ① taxonomic character의 발굴과 taxonomic evidence의 합성, ② macromolecules의 이용, ③ numerical taxonomy와 computer의 이용, ④ data-processing system의 정립이 그것이다.
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完全學習 敎材에 依한 放送授業이 學業成就에 미치는 效果
姜周泰,李裕性 東亞大學校 學生指導硏究所 1974 學生硏究 Vol.5 No.-
Problems The purpose of this study was to test the possible effects of radio class with teaching material based on mastery learning theory. An attempt was also made to identify the differential effects of the radio program in terms of the level of intelligence. The specific questions guided in this study were as follows: (1) To what degree will the group that had the mastery learning radio class advance in school achievement? (2) Is there any difference in school achievement of radio class according to intelligence difference? (3) Is there any relationship between the school achievement effected by the radio class and personality variable? Method: The experimental group was constituted with 66 boys of first grade in a middle school of Busan city. The experimental radio program was deviced based on themastery learning material published by Korean Institude of Research, in the Behavioral Sciences. And this program was applied to the experimental group one-hour daily one semester. Results : The following hypotheses were tested : (Hypothesis 1) The experimental group which had radio class will advance more in school achievement than the control group. This hypothesis was partially confirmed as shown in Table Ⅰ, ◁표 삽입▷ (원문을 참조하세요) (Hypothesis 2) The radio class will show differential effects in school achievement according to the level of intelligence. ◁표 삽입▷ (원문을 참조하세요) As shown in Table Ⅱ, in high I.Q. group there was no significant differences observed as to pre and post experiment difference. However, in low I.Q. group both Korean Language and English yielded significant differences, while Mathematics did not yield substantial difference. Thus, hypothesis 2 was also partially confimed. (Hypothesis 3) There witl be positive correlation between personality variable and school achievement effected by radio class. ◁표 삽입▷ (원문을 참조하세요) Table Ⅲ Shows little distinct correlation between most of the personality variable and school achievement. Conclusion : Through this syudy, the following conclusions may be drawn: (1) The radio class with the program based on mastery learning theory made a considerable contribution to the advancement of both Korean Language and English achievement. (2) Especially, the low I.Q group had more gainning than high I.Q, group. (3) The correlation between personality variable and academic achievement of the group received radio class was negligible.
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이물질주입을 통한 연부조직 확대술의 합병증에 대한 고찰
류재만,최희윤,이유성 大韓成形外科學會 1996 Archives of Plastic Surgery Vol.23 No.1
The injection of foreign materials such as liquid silicone or paraffin has been used by some unathorized people for cosmetic purposes, as a common practice. Many people get injection vecause of their little understanding of the complications following injection of such foreign materials. Now that these materials have been used increasingly in prosthesis, reports of possible systemic or local complications have emerged. A retrospective study was made, targeting 244 patients who had operations for complications following injection of foreign materials. According to the results of the study, there were thirteen cases of human adjuvant disease and one case of pulmonary embolism as for systemic complications. Human adjuvant disease is defined as an immunologically mediated disorders after injection of foreign substances such as paraffin and silicone. Local complications such as firmness, skin discoloration and pain were observed in all of the cases. Followings are the results of our study. 1) Paraffin was the most commonly used material and use of silicone has been increased. 2) Injectioin of foreign materials prevails in patients in the fifth decasde. 3) Females greatly outnumbered males. 4) The injection sites in the face were the nose, cheek and forehead in descending order. In the body, the most common site of injection was the breast, followed by the penis and the hand. 5)The mean interval between the injection of the foreign materials and the onset of systemic complication was 15.8 years, It was 6.6 years for local complications.
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