元 大都의 高麗寺院

송재웅 한국중앙사학회 2006 중앙사론 Vol.23 No.-

울진 2호기 5주기 저출력 노물리 시험에서의 감마 Background 의 영향 분석

송재웅,김용래 한국원자력학회 1996 Nuclear Engineering and Technology Vol.28 No.2

울진 2호기 5주기 노물리 시험 결과 기준 제어군의 제어능과 기준 제어군 삽입 전후의 붕소 농도의 차이의 비로 정의되는 평균 붕소능의 측정 결과가 제한치를 위배하였다. 이것은 노물리 시험시 사용하는 노외 계측기가 비보상형 전리함이기 때문에 중성자속 준위가 낮을 때 감마 background 에 의한 영향이 커지며, 이런 경우에 발생될 수 있는 현상으로 판명되었다. 따라서 본 연구에서는 이러한 감마 background로 인한 반응도 증가 현상을 분석하기 위해 점 동특성 방정식을 수치 해석적으로 풀고 이로부터 감마 background가 없을 때의 기준 제어군 제어능 측정 시험을 모사 계산하였다. 이러한 방법으로 계산한 결과, 기준 제어군의 예상 측정제어능이 실제 측정치보다 약 6%증가하였으며 이 값을 사용하여 평균 붕소능을 계산한 바에 의하면 그 제한치를 만족하는 것으로 평가되었다.

유방확장기만을 사용한 유방재건술 후 C-V피판을 이용한 유두재건술

송재웅,한병기,김정헌 대한성형외과학회 2009 Archives of Plastic Surgery Vol.36 No.4

Purpose: Breast cancer is second most common cancer in women. Most of the patients with breast cancer treated with mastectomy take breast reconstruction. Nipple reconstruction is an important step in breast reconstruction. Many surgeons have investigated of nipple reconstruction using the flap technique after breast reconstruction with the autologous tissue. The objective of this study is to evaluate the results of nipple reconstruction using the C-V flap technique after breast reconstruction only with the breast expander. Methods: From April 2006 to May 2008, the authors treated 17 patients of nipple reconstruction using C-V flap technique, who received breast reconstruction only with the breast expander. As we have predicted decrease in the size of reconstructed nipple, we designed flap a little larger than wanted nipple size. Nipple splint was applied for 4-6 months for minimizing decrease of the size of reconstructed nipple. The diameter and height of the reconstructed nipple were measured and patient's satisfaction score was assessed. Results: Mean follow-up duration was 12.5 months. Among the 17 patients, the average absorption rate by height of nipple was 47.0%. Partial necrosis was noted in 1 case, and treated well with conservative management. There were no other significant complications noted. Patient's satisfactory score was assessed by the height, design and location of the nipple. The average of satisfaction score was 85%, 68%, 62% and total average was 83%. Conclusion: The authors experienced 17 patients of nipple reconstruction using the C-V flap technique after breast reconstruction only with the breast expander. The absorption rate of the size of the nipple, complications and patient's satisfactory score of this study were similar to those of nipple reconstruction after breast reconstruction with the autologous tissue. It is expected that nipple reconstruction after breast reconstruction only with the breast expander is safe and reliable. It is considered that a long-term study is necessary.

MIMO 시스템에서 데이터 정보와 안테나 선택 기법을 이용한 공간 부호화

송재웅,김백현,정락교,곽경섭 한국ITS학회 2012 한국ITS학회논문지 Vol.11 No.6

다중 입출력(MIMO : Multiple-Input Multiple-Output) 시스템은 공간 다이버시티 이득과 공간 다중화 이득을 얻을 수 있게 한다. 본 논문에서는 MIMO 시스템에서 데이터 정보와 안테나 선택 기법을 이용한 공간 부호화 기법을 제안한다. 이 기법은 부호화 이득과 동시에 공간 다이버시티 이득을 얻을 수 있게 한다. BPSK(Binary Phase-Shift Keying) 변조 방식을 사용한 MIMO 시스템에서 BER 성능을 분석하고, 데이터의 편재율에 따라 달라지는 공간 다이버시티 이득을 실험을 통하여 비교하였다. Space diversity and space multiplexing gain can be achieved with MIMO system. This paper proposes spatial coding method to MIMO system using data information and antenna selection technique. This technique provides coding gain as well as space diversity gain. For MIMO system with BPSK modulation, BER performance is analyzed and space diversity gains are compared through simulation in terms of data maldistribution degree.

朝鮮初期의 向化倭人

송재웅 한국중앙사학회 2001 중앙사론 Vol.15 No.-

MIMO 시스템에서 안테나 선택 기법을 이용한 채널코딩

송재웅,홍석곤,곽경섭 한국ITS학회 2012 한국ITS학회 학술대회 Vol.2012 No.1

본 논문에서는 송신부에서 다중 안테나를 사용할 때, 안테나 선택 과정에서 논리적 정보를 담아 전송하는 시스템이다. 송신부는 보내고자 하는 데이터 스트림 일부분을 안테나 선택 테이블에 적용하여 일부분을 제외한 데이터 스트림을 송 신한다. 수신부는 송신된 데이터 스트림과, 선택된 안테나 테이블에 의해 실제적으로는 송신되지 않은 데이터 스트림을 복구하여 송신부가 보내고자 했던 전체 데이터 스트림을 도출하는 시스템이다. 채널 용량을 최대화하기 위하여 SVD (Singular value decomposition)을 적용 후 송신할 안테나를 선택하였다. 선택하는 송신 안테나 수에 따라 달라지는 채널 용량을 실험하였으며, 안테나 선택에 의한 논리적 전송에 따라 증가하는 시스템 처리량을 확인하였다.

MIMO 시스템에서 낮은 복잡도의 안테나 선택 기법을 이용한 채널코딩

송재웅(Jaewoong Song),홍석곤(Seok Gon Hong),곽경섭(Kyung Sup Kwak) 한국통신학회 2012 한국통신학회 학술대회논문집 Vol.2012 No.6

운동화, 하이힐, 그리고 킬힐에 따른 족압과 주관적 불편도 평가

송재웅(Jae?Woong Song),김성자(Sung?Ja Kim),이가희(Ga?Hee Lee),송기염(Ki?Burm Song),공용구(Yong?Ku Kong) 대한인간공학회 2009 大韓人間工學會誌 Vol.28 No.3

Ten young females were participated in this study to investigate the effects of types of shoes (sneakers, high heels, kill heels), types of tasks (standing, walking floor, step up and down), and areas of foot (fore foot, middle foot, rear foot) on foot pressures as well as subjective discomfort ratings. Results showed that kill heels had the most discomfort shoes, followed by high heels and sneakers. Generally, as the heel was higher, the discomfort of foot increased. For the analyses of task types, generally discomfort ratings were highest for the step down and up, followed by walking floor and standing. Especially discomfort ratings of high heels and kill heels were more evident in case of step up and step down than standing and walking floor. Standing task was rated as the lowest levels of discomfort on users' foot. Peak and mean foot pressures were also evaluated in this study. The findings represented that there was no significant differences between types of shoes in both peak and mean foot pressures. The peak pressure (82.14㎪) and mean pressure (40.32㎪) for standing task were significantly lower than those of other tasks [walking floor (190.55kPa, 55.46㎪), step up (191.43kPa, 53.80kPa), and step down (200.66㎪, 52.62㎪)]. Generally discomfort ratings and peak/mean pressures associated with foot showed that fore foot had higher discomfort ratings as well as peak and mean pressures than middle and rear foots. In particularly, this trend was more obvious in case of high heels and kill heels. For the high heels and kill heels, the peak pressures of fore foot were 4.5~4.8 times and 2.3~2.5 times greater than that of middle foot and rear foot, respectively, whereas the peak pressures of fore foot were 2.9 times and 1.7 times greater than that of middle and rear foots, respectively, in case of sneakers.

미역의 자궁수축에 관한 연구

허근,송재웅,최종원,Huh, Keun,Song, Jae-Woong,Choi, Jong-Won 한국생약학회 1992 생약학회지 Vol.23 No.3

Undaria pinnatifida (UP) has long been ingested by woman who was delivered of a child. The present study was investigated to find out the contractive compound from UP and the contractive mechanism. The active extract, MeOH extract was partitioned with $CHCl_3$ and water. Whereas potassium iodide and alginic acid do not affected the uterus contraction, $CHCl_3$ extract significantly increased uterus contraction in vitro and in situ studies. The contraction by $CHCl_3$ extract was not blocked by atropine, prazosin and propranolol. Blood estrogen level was not changed by $CHCl_3$ extract.

한우 및 젖소에서 과배란 처리를 이용한 체내수정란 생산과 신선 및 동결 수정란 이식 결과

김용준,송재웅,서세현,정구남,김용수,이해리,신동수,조성우,김수희 韓國受精卵移植學會 2004 한국동물생명공학회지 Vol.19 No.3

가축에서 생산성을 높이기 위해 사용되는 수정란이식술의 실용성을 알아보기 위하여 한우 및 젖소 36두로부터 과배란 처리를 하여 신선수정란은 25두에, 동결수정란은 17두에, 쌍태 생산을 위한 수정란 두 개 이식은 13두 수란우에 이식되어 그 생산 결과를 조사하였다. 1 과배란을 위한 호르몬 처리후 반응을 나타낸 공란우는 75.0%이었다. 2. 황체수와 비교하여 채란된 수정란 율은 91.8% 이었다. 3. 비외과적으로 채란된 전체 난자 중 생존성이 있는 배 To investigate the feasibility of embryo transfer technology to promote productivity of cattle, 36 cows(18 Holstein, 18 Hanwoo) were superovulated. Fresh embryos were transferred to 25 recipients(14 Holstein, 11 Hanwoo), whereas frozen embryos were transferred to 17 recipients(10 Holstein, 7 Hanwoo). Two embryos were transferred at a time to 13 recipients(9 Holstein, 4 Hanwoo) to produce twin calves. 1. 75.0% of donor cattle were reacted to hormonal treatment far superovulation. 2. The rate of embryo recovery by non-surgical method for Holstein and Hanwoo was 90.4 and 95.8% in comparison with numbers of corpus luteum. 3. Of all the ova collected non-surgically, the rate of viable blastocyst was 66.4% and the rate of transferrable blastocysts was 48.6%. 4. The rate of embryo collection by one-catheter method was 75.0%. 5. The rate of pregnancy/delivery following embryo transfer with fresh embryos was 60.0%. 6. The rate of pregnancy/delivery following embryo transfer with frozen embryos was 35.3%. 7. In embryo transfer to produce twin calves, the rate of pregnancy/delivery was 28.6% with fresh embryos and 16.7% with frozen embryos.