병렬 테스트를 위한 Exhaustive 테스트 패턴 생성

김우완,김한철 경남대학교 정보통신연구소 1999 연구논문집 Vol.1 No.-

본 논문은 Exhaustive 테스트 방법을 이용 중에 분할 기법을 이용하여 병렬 테스트 가능한 테스트 기법을 제안한다. 제안된 방법은 Exhautive 테스트의 단점인 테스트 수행시간을 줄일 수 있으며, 함수적인 분할 기법을 이용하여 기존 선형적으로 테스트하던 방법을 병렬적으로 테스트할 수 있음을 보여준다. 테스트 패턴 생성을 위해서는 함수 레벨의 기법을 이용하며, 테스트 패턴 생성에는 부울 미분 방법을 사용한다. 또한 이를 이용하여 병렬적으로 삽입할 수 있는 테스트 패턴을 자동적으로 생성하게 된다. In recent years the complexity of digital systems has increased dramatically. Although semiconductor manufacturers try to ensure that their products are reliable, it is almost impossible not to have faults somewhere in a system at any given time. As complexity of circuits increases, more organized and automated methods for test generation become necessary. Up to now, however, most of popular and extensive methods for test generation may be those which sequentially produce an output for an input pattern. They inevitably require a lot of time to search each fault in a system. This paper generates test patterns through the partition method among those using the exhaustive method, and designs and implements a method that can discover faults earlier than other ones proposed ever by inserting a pattern in parallel.

走向能動時代的努力 : 論王國維古文論轉換的理論與實踐기當代啓示

李哲理,吳中勝 慶南大學校 人文科學硏究所 1998 人文論叢 Vol.10 No.-

The modern scholars had done various exploration into a historical subject on the alternation of the statement for ancient Chinese Literature theories. The most successful was Mr. Wang Guo Wei's Theory of Activity. He insisted on the independence of study, the scholar as the master of his own views and the combination of Chinese and Western views. Mr. Wang's theory had greatly influeneced his own experience on the point of literature and has definitely been a source of inspiration for scholar's today.

한국인 얼굴의 편평도 : 얼굴깊이를 이용한 연구 using Facial Depth

송우철,윤관현,고기석 대한해부학회 2003 Anatomy & Cell Biology Vol.36 No.6

[구연8]Horizontal angular asymmetry of the face in Koreans; with reference to the eye and mouth

Wu-Chul Song,Seung-Hwa Park,Byoung-Young Choi,Ki-Seok Koh 대한체질인류학회 2004 대한체질인류학회 학술대회 연제 초록 Vol.47 No.-

Location of the infraorbital and mental foramina with reference to the soft-tissue landmarks

Wu-Chul Song,Sang-Hyun Kim,Ki-Seok Koh 대한체질인류학회 2006 대한체질인류학회 학술대회 연제 초록 Vol.49 No.-

Pancreatic fistula and mortality after surgical management of pancreatic trauma

Wu Seong Kang,Yun Chul Park,Young Goun Jo,Jung Chul Kim 대한외과학회 2018 Annals of Surgical Treatment and Research(ASRT) Vol.95 No.1

Purpose: Pancreatic trauma is infrequent because of its central, deep anatomical position. This contributes to a lack of surgeon experience and many debates exist about its standard care. This study aimed to investigate the postoperative pancreatic fistula (POPF) and mortality of pancreatic trauma after operation. Methods: We reviewed records in the trauma registry of our institution submitted from January 2006 to December 2016. The grade of pancreatic injury, surgical management, morbidity, mortality, and other clinical variables included in the analyses. Results: Data from a total of 26,072 trauma patients admitted to the Emergency Department were analyzed. Pancreatic trauma was observed in 114 of these patients (0.44%). Laparotomy was performed in 81 patients (2 pancreaticoduodenectomies, 2 pancreaticogastrostomies, peripancreatic drainage in 41 patients, distal pancreatectomies in 34 patients, and 9 patients who underwent surgery for damage control). The incidence of POPF was 38.3%. The overall mortality was 8.8% (7 of 81). In multivariate analysis, pancreas injury grade IV (≥4) (adjusted odds ratio [AOR], 4.071; P = 0.029) and preoperative peritonitis signs (AOR, 2.903; P = 0.039) were independent risk factors for POPF. All patients who died had also another major abdominal injury (≥grade 3). Multiorgan failure was a major cause of death (6 of 7, 85.7%). The mortality rate of isolated pancreas injury was 0%. Conclusion: The pancreas injury grade and preoperative peritonitis were significant risk factors of POPF. The mortality rate of isolated pancreatic trauma was very low.

Microanatomy of incisive canal using three-dimensional reconstruction of microCT images

Wu-Chul SONG,Jeong-Yong LEE,Soon-Heum KIM,Mi-Sun HUR,Kyung-Seok HU,Hee-Jin KIM,Seung-Ho HAN,Ki-Seok KOH 대한체질인류학회 2008 대한체질인류학회 학술대회 연제 초록 Vol.51 No.-

Topographic Relationship between the Zygomatic Arch and Coronoid Process of the Mandible

Wu-Chul Song(송우철),Yong-Woo Kim(김용우),Seung-Ho Han(한승호),Kyung-Seok Hu(허경석),Hee-Jin Kim(김희진),Ki-Seok Koh(고기석) 대한체질인류학회 2010 대한체질인류학회지 Vol.23 No.1

대부분의 해부학교과서나 그림책에는 광대활과 아래턱뼈 근육돌기가 수직으로 서로 겹쳐 있는 것처럼 그려져 있다. 광대활과 아래턱뼈 근육돌기의 국소해부학적 위치관계는 광대활골절의 복원과 같은 여러 상황에서 이 부위를 수술하는 성형외과 의사들에게 중요한 의미를 갖는다. 이 연구에서는 광대활과 아래턱뼈 근육돌기의 국소해부학적 위치관계를 한국인 3차원모델을 이용하여 알아보고자 하였다. 광대활과 아래턱뼈 근육돌기의 국소해부학적 위치관계는 겹친 형태, 접한 형태, 분리된 형태의 세가지로 분류되었다. 가장 빈도가 높은 경우는 겹친 형태(37.7%)였으나 접한 형태나, 분리된 형태도 비교적 높은 빈도로 나와 세 가지 형태가 비슷한 정도로 봐도 무방하다. 오른쪽-왼쪽, 또는 성별에 따른 각 형태의 빈도차이는 없었다. 양쪽이 같은 형태를 나타나는 경우는 70.1%였다. 결론적으로 대부분의 교과서나 그림책에서 광대활과 아래턱뼈 근육돌기가 접하여 있거나 분리된 형태를 합하면 겹친 형태보다 더 많기 때문에 항상 겹쳐 있는 것으로 그려진 것은 오해의 소지가 있다고 생각한다. 이러한 국소해부학적 위치관계는 해부학을 교육하는 해부학자 뿐 아니라 이 부위를 수술하는 성형외과 등의 임상의사들도 알아야 할 것으로 생각한다. Illustrations in almost all textbooks and atlases of anatomy normally show that the zygomatic arch (ZA) and coronoid process (CP) of the mandible overlap vertically. Their topographic relationship is important for plastic surgeons in various situations, such as restorations of ZA fractures. The present study investigated the topographic relationship between the ZA and CP of the mandible in three-dimensional models of Korean human cadavers. The topographic relationship was classified into three types: overlapped, tangential, and separate. The overlapped type was the most common, but the three types showed similar incidences in three-dimensional models. There were no lateral or sex differences according to the three types. The incidence of both sides showing the same type was 70.1%. In conclusion, the predominance of illustrations in almost all textbooks and atlases showing the overlapped type is misleading, since the other two types - where the CP of the mandible does not overlap the ZA - are almost as common.

Early postoperative small bowel obstruction after laparotomy for trauma

Wu Seong Kang,Yun Chul Park,Young Goun Jo,Jung Chul Kim 대한외과학회 2018 Annals of Surgical Treatment and Research(ASRT) Vol.94 No.2

Purpose: This study aimed to investigate the incidence and risk factors of early postoperative small bowel obstruction (EPSBO) after laparotomy for trauma patients. Methods: From 2009 to 2016, consecutive patients who had undergone laparotomy for trauma were retrospectively evaluated. EPSBO was defined as the presence of signs and symptoms of obstruction between postoperative days 7 and 30, or obstruction occurring anytime within 30 days and lasting more 7 days. Results: Among 297 patients who met the inclusion criteria, 72 (24.2%) developed EPSBO. The length of hospital stay was significantly longer in patients with EPSBO than in those without EPSBO (median [interquartile range], 34 [21–48] days vs. 24 [14–38] days, P < 0.001). Multivariate logistic analysis identified male sex (adjusted odds ratio [AOR], 3.026; P = 0.008), intraoperative crystalloid (AOR, 1.130; P = 0.031), and Abbreviated Injury Scale (AIS) score for mesenteric injury (AOR, 1.397; P < 0.001) as independent risk factors for EPSBO. The incidence of adhesive small bowel adhesion after 30 days postoperatively did not significantly differ between the 2 groups (with EPSBO, 5.6% vs. without EPSBO, 5.3%; P = 0.571). Most of the patients with EPSBO were recovered by conservative treatment (95.8%). Conclusion: After laparotomy for trauma patients, the incidence of EPSBO was 24.2% in our study. EPSBO was associated with a longer hospital stay. Male sex, use of intraoperative crystalloid, and AIS score for mesenteric injury were significant independent risk factors for EPSBO. Patients with these risk factors should be followed-up more carefully.

Isolated Common Hepatic Duct Injury after Blunt Abdominal Trauma

( Yun Chul Park ),( Young Goun Jo ),( Wu Seong Kang ),( Eun Kyu Park ),( Hee Jun Kim ),( Jung Chul Kim ) 대한외상학회 2017 大韓外傷學會誌 Vol.30 No.4

Extrahepatic bile duct injury is commonly associated with hepatic, duodenal, or pancreatic injuries, and isolated extrahepatic bile duct injury is rare. We report a patient who presented with an isolated extrahepatic bile duct injury after blunt trauma. A 50-year-old man was referred to our hospital after having suffered a fall down injury. His laboratory findings showed hyperbiliribinemia with elevated aspartate aminotransferase and alanine aminotransferase level. Initial abdominal computed tomography (CT) showed a mild degree of hemoperitoneum without evidence of abdominal solid organ injury. On the 3rd day of hospitalization, the patient complained of dyspnea and severe abdominal discomfort. Follow-up abdominal CT showed no significant interval change. Owing to the patient’s condition, Emergency laparotomy revealed a large amount of bile-containing fluid collection and about 1 cm in size laceration on the left lateral side of the common hepatic duct. Primary repair of the injured bile duct with T-tube insertion was performed On postoperative day (POD) 30, endoscopic retrograde cholangiopancreatography showed minimal bile leakage and endoscopic sphincteroplasty and endoscopic retrograde biliary drainage were performed. On POD 61, the T-tube was removed and the patient was discharged.