보행 시 노인의 상체 움직임에 대한 3차원적 분석

김희수,윤희중,류지선,김태삼 한국운동역학회 2004 한국운동역학회지 Vol.14 No.3

H. S. KIM, H. J. YOON, J. S. RYU, T. S. KIM. The Three Dimensional Analysis of the Upper Body's Segments of the Elderly during Walking. Korean Journal of Sport Biomechanics, Vol. 14, No. 3, pp. 1-15, 2004. The purpose of this study was to investigate the kinematic variables of the upper part of the body for 8 elderly men during walking. For this study, kinematic data were collected using a six-camera (240Hz) Qualisys ProReflex system. The room coordinate system was right-handed and fixed in space, with righted orthogonal segment coordinate systems defined for the head, trunk, and pelvis. Based on a rigid body model, reflective marker triads were attached on the 3 segments. Three-dimensional Cartesian coordinates for each marker were determined at the time of recording using a nonlinear transformation(NLT) technique with ProReflex software (Qualisys, Inc.). Coordinate data were low-pass filtered using a fourth-order Butterworth with cutoff frequency of 6Hz. Three-dimensional angles of the head, trunk, and pelvis segment were determined using a Cardan method. On the basis of each segment angle, angle-angle plot used to estimated the movement coordinations between segments. The conclusions were as follows; (1) During the support phase of walking, the elderly people generally kept their head the flexional and abductional posture. Particularly, the elderly displayed little internal/external rotation. (2) The elderly people showed extensional and external rotation postures in the trunk movement. Particularly, It showed the change from adduction into abduction at the heel contact event of the stance phase. (3) The elderly people showed almost same pelvis movement from the flexion into extension, from the abduction into adduction, and from internal rotation into external rotation at the mid stance and toe off of the stance phase.

서울의 PPNG 발생 빈도(1991-1992)

김재홍,윤기범,박평원,김영진,전경민,김영태,김중환,곽호,구상완,송민석,유옥,지혜구,김동원,문상은,박영립,정승호,성범진,성순제,엄주용,황정열,이기홍,이주협,전태진 대한화학요법학회 1994 대한화학요법학회지 Vol.12 No.1

The prevalence of PPNG among pretreated gonorrhea cases isolated at the STD clinic of Choong-Ku Public Health Center in Seoul has been studied and reported annually since 1981. In 1991, 123 strains of N.gonorrhoeae were isolated, among which 58(47.1%) were PPNG. In 1992, 98 starains of N.gonorrhoeae were isolated, among which 51(52.0%) were PPNG. In all, 109(49.3%) strains were found to be PPNG among 221 strains isolated between 1991-1992. The prevalence of PPNG in Seoul showed increased tendency till 1989, thereafter, it has been stationary or slightly decreasing.

한국인 관상동맥의 변화양상에 대한 형태학적 연구

권태정,이상용,이한영,고영창,권기석,조재홍,김태공,김유훈,조갑래,서중석,이원태 內務部 國立科學搜査硏究所 2001 國立 科學 搜査 硏究所 年報 Vol.33 No.-

척수압박으로 발현된 급성 골수성 백혈병에 동반된 과립구성 육종 1 례

윤상준,김영곤,김희종,박유환,정춘해,김양수,김태균,박영진,전호종 조선대학교 부설 의학연구소 2000 The Medical Journal of Chosun University Vol.25 No.1

저자들은 척수압박으로 하지마비를 보인 환자에서 수술 후에 급성 백혈병에 동반된 과립구성 육종으로 진단된 환자 1례를 경험하였기에 문헌고찰과 함께 보고하는 바이다. Granulocytic sarcoma(GS) is an uncommon tumor composed of immature cells of the granulocytic series. Most case of GS occur in the course of acute leukemia and the blast crisis of chronic leukemia, Rarely, however, it may present before leukemia becomes clinically apparent. It may also occur in patients with myeloproliferative disoders. GS has been reported that it occurs in 3% to 9% of patients with acute myelogenous leukemia(AML) and the incidence of GS is reported to be higher in patients with t(8;21). GS occurs relatively commonly in africa and has been reported to affect 10-25% of black children presenting with AML. This is very rare case of granulocytic sarcoma with AML(FAB M5) presented with spinal cord compression which was supported by decompression laminectomy.

우리나라 사람면역결핍바이러스(Human Immunodeficiency Virus) 감염환자에서 발병한 악성종양

최평균,송진수,조재현,김성한,박경화,방지환,박완범,김홍빈,김동완,김태유,허대석,오명돈,김남중,최강원 대한감염학회 2006 감염과 화학요법 Vol.38 No.6

Background : Since highly active antiretroviral therapy has lengthened the life span of individuals infected with human immunodeficiency virus (HIV), the importance of malignancy associated with HIV has been increased. The relative frequencies of malignancies in HIV infected patients may vary in different race and region. The aim of this study is to determine the prevalence and characteristics of malignancies in patients with HIV infection in South Korea. Materials and Methods : To identify HIV patients with malignancy, we reviewed the electronic database of pathological reports for all HIV-infected patients seen from January 1986 to December 2005 at the Seoul National University Hospital. We retrospectively reviewed the medical records of them. Results : Among 850 patients infected with HIV, 33 episodes of malignant diseases were diagnosed in 32 patients (3.76%). Thirty were males, and median age was 46 years (range 29-70). At the time of the diagnosis of malignancy, median CD4^(+) lymphocytes count was 100/uL (range 5-620) and in 27 (82%) patients, CD4^(+) lymphocytes count were less than 200/uL. For 13 patients (40%), malignancy was initial presentation of HIV infection. Excluding patients initially diagnosed as malignancy, median follow-up duration from the first visit to diagnosis of malignancy was 36 months (range 3-96). Non-Hodgkin's lymphoma was the most frequent malignancy (13 patients), followed by Kaposi's sarcoma (7), Hodgkin‘s disease (3), acute myeloid leukemia (1), and other solid cancer (9) including one case of anal cancer associated with human papillomavirus. Among 13 patients with non- Hodgkin's lymphoma, 4(31%) achieved the complete remission after chemotherapy and/or radiation therapy, and had been followed without evidence of recurrence. Conclusion : Malignancy was diagnosed in 3.76% of patients infected with HIV. Non-Hodgkin‘s lymphoma is the most prevalent malignancy in HIV patients in South Korea. 목적 : 효과적인 항레트로바이러스 다제요법이 도입됨에 따라, HIV 감염환자들의 수명이 증가되었고, 이에 따라 HIV 감염환자에서 악성종양의 중요성 또한 증가하고 있다. 본 연구의 목적은 우리나라 HIV 감염환자에서 악성종양의 유병률과 호발하는 악성종양의 특성을 밝히는 것이다. 재료 및 방법 : 1986년부터 2005년까지 서울대학교병원에서 치료를 받은 HIV 감염환자의 의무기록을 후향적으로 분석하였고, 병리학적 검사 결과를 검토하여 악성종양이 진단된 환자들을 대상으로 연구를 시행하였다. 결과 : 총 850명의 환자 중, 32명(3.76%)에서 33예의 악성종양이 진단되어, 악성종양의 발병률은 1,000인년 당13.0명(95% 신뢰구간: 8.6∼17.4명)이었다. 그 중 남자는 30명이었고, 악성종양 진단 당시 연령의 중간값은 46 (29-70)세이었다. 악성종양 진단받을 당시, CD4 림프구 수의 중간값은 lOO/uL (5-620 uL) 이었고, CD4 림프구수가 200/ uL 미만인 환자가 27명(82%)이었다. 악성종양에 대한 검사 도중에 HIV 감염사실이 밝혀진 환자가 13명(40%)이었다. HIV를 진단 받은 후 악성종양이 발병한 환자들에서, HIV 진단 후 악성종양의 발병까지는 평균 36개월(3-96개월)이 걸렸다. 13명의 HIV 감염 환자에서 진단된 비호지킨림프종이 가장 흔한 악성종양이었고, 이외에 카포시육종이 7명, 호지킨병이 3명, HPV와 연관된 항문암이 1명의 HIV 환자에서 진단되었다. 그 밖에 급성백혈병, 방광암, 췌장장, 폐암, 진행성위암, 갑상선암, 간세포암, 후두암이 각각 1예씩 진단되었다. 비호지킨림프종이 진단된13명 환자 중, 4명(31%)은 항암치료 및 방사선치료를 받아 완전관해가 되었고, 현재 재발의 증거 없이 외래에서 경과 관찰 중이다. 결론 : 우리나라 HIV 감염환자에서 악성종양의 유병률은 3.76%이었고, 비호지킨림프종이 가장 흔한 악성종양이었다.

TiO₂-CaSO₄와 TiO₂-CaCO₃계의 고상반응기구 : TiO₂의 반응성 및 상형성 Reactivity of TiO₂and Phase Forming

김홍대,한인섭,유태석,정윤중 明知大學校 産業技術硏究所 1986 産業技術硏究所論文集 Vol.5 No.-

For to detect the mechanism of the product phase and the assignment of the two reactant on the solid state reaction of TiO₂ with the CaSO₄ and CaCO₃ respectively at the reaction temperature 900℃ - 1400℃, the refractive microscope, scanning electron microscope, and electron dispersive spectroscope analysis were examined. For the reaction of TiO₂ with CaSO₄ the product phase which earned is CaTiO₃perovskite and from the first, the intermediate product of TiO₂· CaO·SO₂ was formed. However, the main product phase is Ca₃Ti₂O7, which is coexisted in the product layer, at the reaction of TiO₂ with CaCO₃·TiO₂ was diffused into CaSO₄ and CaCO₃ reactant side is both two reaction. Specially, in the case of CaCO₃, the transfer of TiO₂ is rapid through the pore, which was formed with vaporization of CO₂ gas.

CNC 절단기를 이용한 강판의 절단특성에 관한 연구(1)

김성일,이중희,김태영 한국공작기계학회 2002 한국공작기계학회 춘계학술대회논문집 Vol.2002 No.-

In the cutting of plate steel, the quality of the cut surfaces is strongly dependent on the cutting conditions such as cutting speed, kerf width, plate thickness, length of tip-specimen and oxygen pressure etc. the cutting tests of plate steel were carried out using CNC gas cutting machine. this paper deals with cutting characteristics of plate steel using CNC cutting machine. the width of cutting entrance and exit, the surface roughness of cutting surfaces and the cutting surface are examined at various cutting conditions.

骨盤腔內 巨大 橫紋筋肉腫 1 例

金瑩洙,河泰原,朴滿洙,姜瞬求,李重禾,尹栗老,薛鍾求 충남대학교 의과대학 지역사회의학연구소 1992 충남의대잡지 Vol.19 No.2

Rhabdomyosarcoma, which is a very rare and highly malignant disease in urologic field, has three categories-pleomorphic, alveolar, embryonal, and may arise from any part of the body that contains embryonal mesenchyme, whether striated muscle tissue is present or not. The common site in the genitourinary tract are prostate, bladder, and vagina. Herein we experienced a rhabdomyosarcoma of the pelvic cavity and reviewed literature briefly.

Guinea pig의 腹腔動脈과 前腸間膜動脈에 관하여

金鍾涉,朴重錫,曺台純 慶尙大學校 1980 論文集 Vol.19 No.1

In order to investigate the variation in the pattern of origin of the celiac and the cranial mesenteric arteries, forty-four specimens (guinea pig) anesthetized by ethyl ether were heparinized and exsanguinated. Neoprene latex solution was injected into common carotid artery of thirty-two specimens for gross dissection. Twelve specimens angiography were prepared by injecting fifty per cent of barium sulfate solution into exsanguinated animals and then radiographed on a soft X-ray apparatus (Shimadzu Waltes 60). 1. The celiac artery and the cranial mesenteric artery were observed to be arosed mostly from a common trunk of the abdominal aorta, the celiac-cranial mesenteric trunk(68.2%), but in three animals from thirty specimens an anastomotic branch was examined between the abdominal aorta and the celiac artery(6.8%). 2. The celiac artery and the cranial mesenteric artery were branched from separated origin of the abdominal aorta(31.8%), and an anastomotic branch was examined between the celiac artery and the celiac-cranial mesenteric trunk(6.8%) in three animals from thirty specimens. 3. the hepatic artery was arosed from three different origin such as celiac artery branched from celiac-cranial mesenteric trunk(45.4%), celiac-cranial mesenteric trunk(22.2%) and the celiac artery branched from the abdominal aorta(31.8%).

IMS 시스템을 위한 미들웨어의 연구

김형중,박태열,김기택 강원대학교 석재복합신소재제품연구센터 1998 석재연 논문집 Vol.3 No.-

지능생산시스템은 분산화되고 Fieldbus, LAN 등의 지역통신망과 ATM, 인터넷 등의 광역통신망도 이용한다. 서로 다른 오퍼레이팅 시스템과 다양한 통신 프로토콜을 사용할 경우 지능생산시스템에 요구되는 중요한 기능 중 하나가 플랫폼 독립 특성이다. 이런 요구를 만족하기 위하여 특별한 규약을 따를 필요가 있으며 이러한 규약에는 OMG(Object Management Group)에서 규정한 CORBA(Common Object Request Broker Architecture)가 있다. 본 연구에서는 Orbix와 Visual C++을 이용하여 IMS에 적합한 소프트웨어 환경인 생산 셀과 지능생산시스템을 모의하는 소프트웨어를 구현하였다. IMS 시스템을 CORBA로 통합하기 위하여 Orbix를 PC 환경에서 IDL(Interface Description Language) 언어로 작성하고 이를 Visual C++을 이용하여 시스템을 구성하였다. IMS(Intelligent Manufacturing System) can be characterized by a distributed manufacturing system based on local or wide area networks such as fieldbus, ATM, and the internet. Most important characteristics required are platform-independent and interoperable between different operating systems and/or communication protocols. CORBA suggested by OMG can meet the requirements. In this study, software programs using Orbix IDL and Visual C++ on PC environment are implemented, which simulate manufacturing cells and IMS.