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최완영,김인순,최일영,정태준,이영열,고영혜,김남규 대한내과학회 1992 대한내과학회지 Vol.42 No.4
본 저자들은 백혈병으로 진단 받지 않은 환자에서 경막외에 침범하여 척수를 누르고 있고 수술후 방사선 치료로 증상이 좋아진 과립구상 육종을 경험하였기에 이에 보고하는 바이다. Granulocytic sarcoma is an uncommon tumor composed of immature cells of the granulocytic series, occuring in patients with AML and blast crisis of CML. It may rarely precede an acute myelogenous leukemia with an uniformly fetal course. We experienced a case of granulocytic sarcoma of extradural space presenting as spinal cord compression in a 31 years old female with no evidence of leukemia on the bone marrow and periphera1 blood. The tumor was located to the T₁-T₃ having narrowing pole after decompression laminectomy, patient received local irradiation to the residual tumor bed, and being followed at the OPD without evidence of leukemia.
8년간(1992~1999) 산업안전보건연구원에 의뢰된 직업병 심의 사례 분석
강성규,김규상,김양호,최정근,안연순,진영우,최병순,양정선,김은아,채창호,최용휴,김대성,박정선,정호근 대한산업의학회 2000 대한직업환경의학회지 Vol.12 No.2
Objectives : Pneumoconisis and noise-induced hearing loss (NIHL) have been reported as main occupational diseases by the Special Health Examination. The Industrial Accident Compensation Insurance has reported various work-related diseases, however, these two diseases occupied almost a half of compensated cases. Therefore, it was not well known about the status of occupational diseases other than pneumoconiosis, NIHL, and cardio-cerebrovascular accident (CVA). This study was conducted to analyze claimed cases as an occupational disease, that was requested to the Korea Industrial Safety and Health Agency (KOSHA). Methods : The local office of the Korea Labor Welfare Corporation (KLWC) has asked the KOSHA for confirmation of claimed cases as an occupational disease. We analyzed 379 cases requested from KLWC, the Ministry of Labor, employers, unions and occupational health agencies from 1992 to 1999. Results : Male was 80.7 % of the requested cases. Their mean age was 42 years old and 75.5 % of them were more than 35 years old. The requested cases were increased rapidly from 25 cases in 1992 to 108 cases in 1999 and the accept rate was 50.7 %. The majority of requested cases were respiratory diseases(22.4%), cancers(18.5%), Neuropsychiatric problems(14.5%), and musculoskeletal problems(13.5%). The accept rate was high in reproductive, respiratory, musculoskeletal and digestive disorders and low in neuropsychiatric, renal and otologic problems and occupational cancers. 73.6% of them were caused by chemical agents, especially 28.5 % were by organic solvents. 67% of them were clinically confirmed at university hospitals. A half of the cases were from KyongIn area, even the request came from the whole country. Conclusions : A claim was common in workers whose age was over 35 years old and exposure history was over 10 years. The respiratory diseases and neuropsychiatric disorders were still main problems in occupational health and occupational cancers was increasing even though its accept rate was not high yet.
다수 객체 유지 기법을 이용한 항만 하역 장비 시뮬레이터 구현
구영철,김규환,김희연,이양민,이재기 東亞大學校附設 淸報技術硏究所 2006 情報技術硏究所論文誌 Vol.13 No.2
Nowadays there are going to be performed various researches about the operation and management of container terminals. By these researches, problems that arise in operation of container terminals are examined and solved. However the analysis of a port loading equipments actually wastes many time and much money. In these cases, the simulator is the most efficient means among related researches. Therefore this paper studied on a simulator for intelligent port handing equipments. The simulator divided loading courses into five steps and each step made in a module. The virtual port has many 3D objects and objects move each other independently. In this environment, the more 3D objects have, the more the simulator slows by dropping FPS. This problem is solved by the maintenance technique of many objects. Because It took many objects of a container box and guaranteed better FPS.
NMR investigation of octahedral cis-trans occupancy changes during I/S dehydroxylation
Yeong kyoo Kim 한국지질과학협의회 2004 Geosciences Journal Vol.8 No.4
I/S clays (<1 m size fraction) were analyzed by27AlNMR and infrared spectroscopy to investigate the double stepdehydroxylation behavior which can be observed in many 2:1 dio-ctahedral clays. The intensity changes of 27Al NMR peaks for tet-rahedral and octahedral sites during dehydroxylation were observed.The distorted oxygen polyhedra coordinating Al in the I/S dehy-droxylates caused almost complete 27coordinated sites and some loss from the six-fold sites. After asess-ing the extent of dehydroxylation of 7 samples heated at 700 C for1 hour by IR, theoretical six-fold Al NMR peak intensities werecalculated based on two previously proposed dehydroxylation mech-anisms and compared with the experimental ones. The calculationssuggest that there is no movement of the octahedral cations duringdehydroxylation in contrast with published XRD results. NMR resultsshowed that the different dehydroxylation temperatures for cis- andtrans- vacant clays can be caused by the different OH-OH dis-tances which required different energies for dehydroxylation.