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정동원,김귀식 濟州大學校 産業技術硏究所 1998 산업기술연구소논문집 Vol.9 No.2
Finite Element Method is applied to the determination of the deformed bulge profile and strain distribution during upset forming of cylindrical billets. From the results of simulation. The bulging along the z-axis becomes more severe with increasing height reduction and with increasing friction at the die-material interface. The present method can be used for the simple prediction of the deformed shape and strain distribution in upset forging of cylindrical billets with dissimilar frictional conditions at the die-material interfaces.
장성종,김병수,부귀범,김동규,박찬국,김만우,김정용,박상헌 조선대학교 부설 의학연구소 2000 The Medical Journal of Chosun University Vol.25 No.1
Pancreatic pseudocysts usually develop as a complication of acute pancreatitis or repeated attacks of chronic pancreatitis. Pseudocysts may also develop as a result of traumatic injuries or neoplasms. An uncommon complication is massive hemorrhage inside the pancreatic pseudocyst. The exact mechanism of hemorrhage is unknown. Enzymatic digestion, pressure erosion from the cyst mass or a combination of these processes may play an important role. Gastrointestinal hemorrhage associated with a pancreatic pseudocyst can occur in 10 percent of cases. When hemorrhage occurs because of erosion into a blood vessel involved in the pseudocyst, surgery is indicated since the episodes of hemorrhage are often severe and may even be fatal. When there is colonic involvement, various complications may occur. The most dangerous one is spontaneous rupture into the colon, which requires immediate surgical treatment because of high incidence of fulminating sepsis or massive hemorrhage. We examined a sixty eight-year-old man complaining of hematochezia and dizziness, and reported that it was a case of massive lower gastrointestinal hemorrhage caused by pseudocyst of the pancreas ruptured into the colon associated with chronic pancreatitis. On operative findings, the peripancreatic fatty tissue had severe adhesions to transverse colon and tail portion of pancreas, where the pseudocyst had formed. A distal pancreatectomy, splenectomy and resection of transverse colon were performed. By microscopic examination, hemorrhagic necrosis and inflammatory change were observed in the pancreas specimen. The tail portion of pancreas had a 6×6 cm sized cystic mass and was proven to be a pseudocyst with no epithelial lining.
권병철,권경우,김기길,명태식,박찬호,박귀용 한밭대학교 산업과학기술연구소 1995 논문집 Vol.3 No.-
This paper is to be illustrated automation in the design of Pumping Station and Draining Station. Program for design automation applying Auto LISP, DCL can be used to design and draw simultaneously. The study result are as follows. 1. Optimal design has been introduced and precise design has been possible using CAD. 2. Dialog design is possible with introduction the concept of design automation, and design cost can be reduced greatly.