http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
우심방을 침범한 정맥내 평활근종증 -초저체온 완전순환정자하에 1차 근치적 절제술
조성래 고신대학교(의대) 고신대학교 의과대학 학술지 2006 고신대학교 의과대학 학술지 Vol.21 No.1
Intravenous leiomyomatosis is a rare disease entity of benign smooth muscle invading into the lumen of veins. A case of intravenous leiomyoma with extension into the right atrium is described. A 54-year-old woman with intermittent (Uzziness and sycope was admitted in our hospital. She had a history of a hysterectomy with left oophorectomy for uterine leiomyoma 2years before. The tumor was detected in the inferior vena cava extending into right atrium on echocardiography,chest and abdominal computed tomography. The tumor was successfully removed one-stage with deep hypothermic circulatory arrest under cardiopulmonary bypass through simultaneous sternotomy and laparotomy.
조성래,김봉수,최원석,이인환,이우용 한국인터넷방송통신학회 2007 한국인터넷방송통신학회 논문지 Vol.7 No.6
Reliable broadcasting is an efficient methodology to deliver the same message reliably throughout the network. However, reliable broadcast intrinsically entails the well-known problem of feedback implosion or broadcasting storm since it is possible that every receiver node sends their feedback simultaneously to their transmitter. This problem is exacerbated as the number of receiver nodes increases. In the domain of USN (Ubiquitous Sensor Network), this problem results in more contention, collisions, and thus more power consumption. In this paper, we propose a link-layer reliable broadcasting scheme referred to as delayed reliable broadcast (DRB) algorithm. The proposed DRB scheme efficiently reduces a number of redundant feedbacks which equally avoids the unnecessary collisions and power consumption in the uPAN networks. Performance evaluation shows that our proposed DRB scheme effectively reduces the unnecessary feedback while providing successful reliability in the network. 신뢰적 브로드캐스팅 기법은 네트워크 전체에 동일한 메시지를 신뢰적으로 전달하는 효율적인 방식이다. 하지만, 송신 노드에게 모든 수신 노드들이 피드백 메시지를 동시에 전달하기 때문에 잘 알려진 피드백 충돌 (Feedback Implosion) 혹은 브로드캐스트 폭증 (Broadcast Storm)의 문제를 발생시킨다. 이러한 문제는 노드의 개수가 많아질수록 더욱더 네트워크에 커다란 문제를 야기한다. USN (Ubiquitous Sensor Network)에서는 노드들 간에 더욱더 많은 경쟁과 충돌, 그로인하여 더욱더 많은 전력소모를 일으킨다. 본 논문에서는 링크계층에서의 신뢰적 브로드캐스팅 방법을 제안하고 지연을 이용한 신뢰적 브로드캐스팅 (DRB: Delayed Reliable Broadcast)라 명명한다. 제안된 DRB 방식은 불필요한 충돌이나 전력소모가 없도록 불필요한 피드백 개수를 효율적으로 줄인다. 성능평가를 통해 제안된 DRB 방식이 네트워크에 신뢰적으로 전달하면서 동시에 불필요한 피드백의 개수를 줄이는 것을 증명할 수 있었다.
Epitaxial Growth and Magnetic Properties of Mn-Ga Thin Films on GaSb (001)
조성래,Wuwei Feng,Dang Duc Dung,Yooleemi Shin,Duong Van Thiet,Xian Hao 한국물리학회 2010 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.56 No.4
We report on the epitaxial stabilization of tetragonal DO22-type Mn3−δGa (δ= 0 to 2) films deposited on GaSb(001) by using a molecular beam epitaxy technique. The structural and the magnetic properties as functions of the Mn concentration are discussed. The growth orientation of Mn-Ga(114)//GaSb(001) caused the easy magnetocrystalline direction to be located in the film plane in our experiment, which differed from the ordinarily observed perpendicular magnetic-anisotropy of Mn3−δGa films. The increase in coercivity with increasing temperature for the MnGa film is possibly due to an increase in the anisotropy energy. The MnGa film exhibited an enhanced anisotropy energy with respect to Mn3Ga film. An increasing average saturation magnetization per Mn atom with decreasing Mn content was also observed, indicating a ferrimagnetic ordering with partially compensating moments of the two crystallographically different Mn sites in the DO22 structure.