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대한간학회지 제8차 춘계학술대회 초록집 : 구연 ; 조직 생검으로 확진된 초기 간경변증 환자들의 임상 검사실 성적들에 대한 5년 후 추적 비교
김동욱 ( Kim Dong Ug ),박근태 ( Park Geun Tae ),이성희 ( Lee Seong Hui ),고동희 ( Go Dong Hui ),조현석 ( Jo Hyeon Seog ),김진배 ( Kim Jin Bae ),이항락 ( Lee Hang Lag ),함준수 ( Ham Jun Su ),이민호 ( Lee Min Ho ) 대한간학회 2002 Clinical and Molecular Hepatology(대한간학회지) Vol.8 No.2(S)
김동욱(Dong Ug Kim),박경동(Kyeong Dong Park) 대한기계학회 2007 대한기계학회 춘추학술대회 Vol.2007 No.6
The compressive residual stress, which is inducing by shot peening process, has the effect of increasing the intrinsic fatigue strength of surface and therefore would be beneficial in reducing the probability of fatigue damage. However, it was not known that the effect of shot peening in corrosion environment. In this study, the influence of shot peening and corrosion condition for corrosion property were investigated on immersed in 3.5% NaCl, 10% HNO₃ + 3% HF, 6% FeCl₃. The immersion test was performed with two kind of specimen. The immersion periods was performed 360days. Corrosion potential, weight loss were investigated from experimental results. From test results, the effect of shot peening on the corrosion characteristics was evaluated.
포스터 전시 : 기타 ; 복강 내에 발생한 미만성 악성 중피종 1예
김동욱 ( Kim Dong Ug ),정우진 ( Jeong U Jin ),이동현 ( Lee Dong Hyeon ),김광하 ( Kim Gwang Ha ),허정 ( Heo Jeong ),강대환 ( Kang Dae Hwan ),송근암 ( Song Geun Am ),조몽 ( Jo Mong ),양웅석 ( Yang Ung Seog ) 대한소화기학회 2003 대한소화기학회 추계학술대회 Vol.2003 No.-
복강 내에서 발견되는 종양은 위, 간, 췌장, 대장 등 소화기계 암종이나 비뇨생식기계 종양으로부터 전이된 경우가 많으나 드물게는 원발성 종양으로 중피세포나 뮬러관에서 기원한 종양이 발생할 수 있다. 전체 중피종의 14.4% 정도가 복막에서 유래하며 대부분은 흉막에서 발생한다. 저자들은 6개월이상의 복수를 주증상으로 내원한 환자의 복부 전산화 단층촬영에서 위장막 종괴의 산재를 발견하고 초음파유도 하에 경복부 침생검을 시행하여 악성 중피종으로 진단된 48세
김동욱(Dong-Ug Kim),박경동(Keyung-Dong Park) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.4
The lightness of components required on marine and shipbuilding industry is requiring high strength of components. In particular, fatigue failure phenomena, which happen in metal, bring on danger in human life and property. Therefore, antifatigue failure technology takes an important part of current industries. In this study, it was investigated about endurance and fatigue crack propagation rate of according to welding methods of SMAW, FCAW and SAW commonly using for welding structures in present. Endurance limits carried out highly in the order of SMAW, FCAW, SAW and fatigue crack propagation rate out lowly in the order of SMAW, FCAW, SAW. By these results, it is needed to used SMAW welding methods for welding structures with small welding capacity and FCAW, SAW methods for large welding structures after consideration about economic gains and operation efficiency of welding. Fatigue crack propagation rate is more effected by strength of welding materials than endurance limit of welding materials according to welding methods.
김동욱(Dong-Ug Kim),박경동(Keyoung-Dong Park) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.10
The security of stability for fractures of all sorts of parts and structure has become a first subject these days. We have need to organize fatigue characteristics of weldment because fatigue break out suddenly without a change of shape. In this study, we execute the fatigue test according to different of the welding method at the same materials. It was investigated about a fatigue limit according to welding methods of SMAW, FCAW and SAW at normal temperature and a frequency of 10Hz. The important results of the experimental study on fatigue characteristics of weldment are as follows: The fatigue limit of welding methods became low in the order of SMAW, FCAW, SAW.
성인 급성 골수성 백혈병 환자의 관해후 장기 생존율을 얻기 위한 치료 방침 - 골수이식과 항암요법의 생존율 비교 -
이종욱 ( Lee Jong Ug ),민창기 ( Min Chang Gi ),김동욱 ( Kim Dong Ug ),진종률 ( Jin Jong Lyul ),한치화 ( Han Chi Hwa ),민우성 ( Min U Seong ),박종원 ( Park Jong Won ),김춘추 ( Kim Chun Chu ),김동집 ( Kim Dong Jib ),한창순 ( Han Cha 대한내과학회 1993 대한내과학회지 Vol.44 No.4
연구배경 : 성인 급성 골수성 백혈병(AML)의 치료성적은 복합 항암요법의 개발 및 보조요법의 발달에 힘입어 관해률이 60~80%의 수준까지 향상되었으나, 관해 후 재발방지를 위해 항암요법(공고요법)을 실시함에도 불구하고 관해 유지기간은 약 1년정도이고, 장기 생존율은 약 20~35%에 불과하다. 한편 AML의 1차 관해시 동종골수의식(BMT)을 실시할 경우 장기 생존율은 약 45~65%이다. 방법 : 1986년 7월부터 1991년 12월까지 가톨릭의대 부속 성모병원과 국립의료원에서 AML로 진단받고 관해유도요법을 실시하여 완전관해(CR)에 도달한 92명의 환자중 40세 이하에서 1회 이상의 항암요법을 실시한 군(41명) HLA가 일치하는 형제 자매로부터 BMT를 실시한 군(16명) 간의 장기 생존율 및 재발율을 후향적으로 비교하였다. 결과 : 1) 대상환자 57명중 50명에서 추적관찰이 가능하였으며 3개월부터 57개월(중앙치 21개월)까지 관찰한 결과, 4년간 장기 생존율은 BMT 군과 항암치료군에서 각각 66%와 27%이었고(p<0.05), 4년간 재발율은 각각 24%와 69%이었다(p<0.005). 2) 전체 생존기간 및 무병 생존기간의 중앙치는 BMT 군에서는 아직 중앙치에 도달하지 않았으며, 항암치료군에서는 각각 17개월 및 13개월이었다. 3) 사망원인으로는 BMT군(16명) 은 백혈병 재발이 2예(13%), 치료와 관련된 합병증으로 2예(13%)에서 사망하였고, 항암치료군(41명)은 백혈병 재발이 21예(51%), 치료와 관련된 합병증으로 4예(10%)에서 사망하였다. 결론 : 이상의 결과로 성인 AML의 관해후 치료방침으로서 BMT가 항암치료(공고요법)보다 성적이 우수한 것으로 판단하여, 1차 관해후 40세 이하에서 HLA가 일치하는 공여자가 있을 경우 높은 장기 생존율을 얻기위해서는 BMT를 추천하는 것이 바람직하리라고 사료된다. Background: Although substantial progress in the treatment of acute myelogenous leukemia (AML) has produced complete remission (CR) in 60% to 80% of patients receiving induction chemotherapy, the median remissio duration is about 12 months and only 20% to 35% of patients undergoing consolidation chemotherapy achive long-term disease-free survival (DFS). Allogenei bone marrow transplantation (BMT) in first remission has resulted in a 45% to 65% overall survival rate. Methods: From July 1986 to December 1991, 92 patients with AML who had reached a CR following induction chemotherapy were assigned to a retrospective study comparing allogeneic BMT with consolidation chemotherapy as a postremission treatment. The results in 16 patients, aged 16 to 40 years, who underwent a HLA matched BMT in first remission were compared with those in 41 patients, age-matched, lacked an HLA-identical sibling, treated with one or more cycles of consolidation chemotherapy. Results: 1) After a median follow-up of 21 months (3~57 months), the acturaial DFS at 4 years was significantly higher in the transplantation group than in the chemotherapy group (66% v 27%; p<0.05), and the actuarial probability of leukemic relapse was considerably lower in the group treated with BMT (24% v 69%; p<0.005). 2) The median survival and DFS has not yet been reached for BMT group, and 17 months, 13 months, respectively for chemotherapy group. 3) Treatment-reached mortality was similar in both groups (13% in BMT group, 10% in chemotherapy group). Conclusion: Our results show that allogeneic BMT appears to be superior to consolidation chemotherapy and offers the best chance of long-term DFS in patients with AML in first remission. It will therefore be appropriate postremission treatment strategy to undergo allogeneic BMT for patients with AML in first remission under the age of 40 who have an HLA-identical sibling donor.