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임재춘 ( Jae Choun Lim ),나상훈 ( Sang Hun Na ),안종필 ( Jong Pil Ahn ) 조선대학교 공학기술연구원 2009 공학기술논문지 Vol.2 No.1
The spot where bottom foundation of a marine bridge is constructed is deep in depth of water and a bedrock, bearing stratum, is very deeply distributed. So, I analyzed material of soil profile and then evaluate bearing capacity and safety of settlement when a stake of site construction is designed using a projection cast in place concrete pile and a sacrifice steel cast in place pile. Also, I analyzed and researched practical affairs like a slime processing and plumbing maintenance in supervision of execution.
안종필 ( Jong Pil Ahn ),나상훈 ( Sang Hun Na ),임재춘 ( Jae Choun Lim ) 조선대학교 공학기술연구원 2008 공학기술논문지 Vol.1 No.2
In this study, it has been indicated reasonable investment decision makings for an Sewer Pip Structures design and the process to analyze VE/LCC(Value Engineering/Life Cycle cost) analysis for selecting patterns. Through the process indicated, it makes the squandering of resources and environmental disruption minimize in public. In the ultimate, this study is accomplished to indicate objective analysis patterns for the value which is a main valuation pattern for the most reasonable investment decision makings. The VE/LCC process is applied to Sewer Pipe selecting patterns in real as well. To sum up the result of this study, it shows to indicate separately; technical element (hydraulic stability, durability, structure stability) and social element (greenness, maintenance and management, construction, function convenience) on the standard item of an Sewer Pipe Structures efficiency evaluation. consideration item could be apply and estimate more systematically through accomplishments; the result of the questionnaire to experts apply to AHP in the items which are function evaluations and estimating weight for Sewer Pipe Structures selecting patterns. The most suitable result has been selected according to the initial cost of construction from only experience decision of experts for selecting a most suitable alternative in established Sewer Pipe Structures but, in this study, alternatives could be selected from LCC analysis including the initial cost of construction as well as maintenance and management expenses. The proposed methodology incorporates a VE/LCC model and a performance evaluation technique to properly handle the uncertainties associated with the historical data and to analyze the value of alternatives more rationally.
Volume Rendering CT Image의 TACE Reference Data로서의 유용성
한성일(Seong Il Han),나상훈(Sang Hun Na),김종옥(Jong Ok Kim),이제호(Jae Ho Lee),김성배(Seong Bae Kim) 대한CT영상기술학회 2010 대한CT영상기술학회지 Vol.12 No.1
Purpose Transcatheter arterial chemoembolization(TACE) have a treating objective by inserting the angiography catheter in the hepatic artery that supplies blood to the hepatocellular carcinoma(HCC) and by this it can mix up the injection of carcinostatis and embolus substances to necrosis the liver cancer organisms. Typically a computed tomography(CT) decoding result was used as a treating plan by the doctor before transcatheter arterial chemoembolization was preceded but because of false classifications and the increased time of surgical operations, the anti-cancer medicine can be used in places that are not needed which bring out great pains to the patients. This investigation has been made so that confusions can be decreased when using the vascular volume rendering data that has been created in the 3 dimensional-lab. Materials and methods From a total of 1,144 cases that has used TACE at the National Cancer Center from June 1st, 2008 to August 5th, 2009, 50 HCC patients(43 men, 7 women with the average age being 58.18 years old ranging from 34 to 78 years) that converted their examined liver dynamic computed tomography’s artery phase image to a volume rendering image were evaluated by two decoding doctors and one radiologic technologist. Results The investigated patients were classified into four types. Type 1 was decoded that there was each lesion in the segment 5 through the segment 8 of the right lobe of liver according to CT test, but there was a lesion in other segment in case of TACE procedure. In other words, it meant that the segmentation was different in the right volume of liver. Type 2 was decoded that there was a lesion in the segment 4 according to CT test, but there was a lesion in the segment 8 in case of TACE procedure. In other words, is meant that the segmentation was different in the liver dome. Type 3 was decoded mat there was a lesion in me multiple segments or the single segment according to CT test, but there was a lesion in the single segment or the multiple segments in case of TACE procedure. And type 4 was the case that the results of decoding cannot be same or different in CT test and TACE procedure. Conclusion The hepatic artery’s shape in anterio-posterior conditions and the hepatic artery in right anterio-oblique Md left anterio-oblique conditions showed a significant difference. The blood vessels that seemed to be reiterated in AP conditions could be clearly classified by the change of angles in the right anterio-oblique and left anterio-oblique.