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서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1998)
김재홍,김준호,반재용,이정우,황성주,정준규,정성태,강진문,조흔정,홍창의,정혜신,이한승,김이선,이봉길,이종호,선영우,한기덕,윤성필,이성훈,안종성,박석범,문승현,조항래,김형섭,류지호,황재영,박준홍,손상욱 한양대학교 의과대학 2001 한양의대 학술지 Vol.21 No.1
In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. For the detection of a more effective therapeutic regimen and assessing the prevalence of Penicillinase Producing Neisseria gonorrhoeae(PPNG), we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by menas of the chromogenic cephalosporin method. In 1998, 93 strians of N. genorrhoeae were isolated, among which 60(64.5%) were PPNG. The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 64.5% in 1998.
악성흑색점흑색종 19예에 대한 임상 및 병리 조직학적 연구
홍원진 ( Won Jin Hong ),장홍선 ( Hong Sun Jang ),이상희 ( Sang Hee Lee ),이상은 ( Sang Eun Lee ),정기양 ( Kee Yang Chung ),노미령 ( Mi Ryung Roh ) 대한피부과학회 2016 大韓皮膚科學會誌 Vol.54 No.10
Background: Lentigo maligna melanoma (LMM) is a subtype of melanoma that typically develops on sun-damaged skin. LMM is estimated to comprise 4∼15% of melanomas, but the prevalence is known to be relatively lower in the Korean population than in the Caucasian population. Objective: To review the clinico-pathologic features and treatment outcomes of Korean patients with LMM. Methods: Nineteen patients diagnosed with LMM during 2003∼2015, in the Yonsei University Health System, were included in this study. The age and sex of the patients, lesion location, thickness (Breslow), stage, treatment methods, BRAF, NRAS, and KIT mutation status, and survival rates were analyzed. Results: Among the 19 Korean patients, 11 were male and 8 were female. The median age was 59.2 years. The most common site was the cheek (47.4%), followed by the scalp, eyelid, nose, forehead, lip, and neck. At the time of diagnosis, 13 patients were in localized stages (5 patients, stage 0; 3 patients, stage I; and 5 patients, stage II) and 6 patients were in advanced stages (3 patients, stage III; and 3 patients, stage IV). Patients in the localized stages showed better overall survival (OS) than those in the advanced stages (p=0.012). Nine patients were treated with a wide excision, and 6 using Mohs micrographic surgery. Three patients received high-dose interferon-α therapy; 6, chemotherapy; and 4, radiotherapy. Two patients in stage 0 were treated with topical ingenol mebutate. Two patients had BRAF V600E mutation; 1, NRAS G12R mutation; and 1, KIT mutation. Median OS of the patients was 40.8 months. Conclusion: Our analysis provides additional information about clinical characteristics, treatment, and prognosis of LMM in Korean patients. (Korean J Dermatol 2016;54(10):769∼775)
가구주분리가족과 일반가족의 아내스트레스, 의사소통, 가족응집성·적응성의 비교연구
홍상욱,배옥현,김태선 영남대학교 지역발전연구소 1998 새마을지역개발연구 Vol.22 No.-
This study aims to compare the wife's stress, communication, families cohesion and adaptation in conjugal understanding in families living apart and general families. The study was conducted by analyzing questionnaires of 172 wives in families living apart and by analyzing 185 wives general families. The data were analyzed with the spss pc' statistical package using frequency, t-test and one-way ANOVA. The results of this study were as follow : 1. Stress in conjugal understanding in family living apart was higher than in general family. 2. Between conjugal understanding in family living apart and general family, there were significant difference in effort levels, family cohesion and communication. 3. Both in conjugal understanding in family living apart and in general family, low stress levels led to high family cohesion and family adaptation. 4. Both in conjugal understanding in family living apart and in general family, high communication levels led to high family cohesion and family adaptation.
베어링 조합방법이 이송축 열변위에 주는 영향에 관한 연구
홍성오,김선진,조규재 한국공작기계학회 2001 한국공작기계학회 춘계학술대회논문집 Vol.2001 No.-
One of the important technical issues is how to decrease thermal expansion of ball screw in proportion to the increase of machining speed. when measuring force of stretch of ball screw, since not only actual expansion and the value of bending have to be considered, it's impossible to definite the exact value of expansion. In addition, support bearings of ball screw gain considerable force in axial direction. It also generates thermal expansion on the ball screw, and deteriorates the bearings. In conclusion, it's impossible to give the pretension enough to absorb the all elongation due to thermal expansion generated during machine running. If gave, bed, column and saddle are all bent to change machine accuracy, and the support bearings of ball screw are damaged. The purpose of this paper is to study the pretension of support bearing of ball screw in machine tool.
홍의실,나병규,김민옥,유일영,채지영,채희복,윤세진,이상전,송형근,박길선,정현용 충남대학교 의과대학 의학연구소 2002 충남의대잡지 Vol.29 No.2
대장 지방종은 주로 우측 결장에 호발하고 특히 회맹판 부위와 맹장 부위에 호발한다. 또한 50~60대에 빈도가 높고 증상이 있는 환자에서 장중첩증이 높게는 40~50%에서 보고되고 있어 성인 장중첩증의 원인으로 중요한 비중을 차지한다. 특히 성인 장중첩증 및 장폐쇄의 중요 원인인 악성 종양과 임상 양상이 유사하여 감별진단이 중요하다. 저자들은 반복적인 복통을 주소로 내원한 환자에서 맹장의 4×5㎝의 점막하 지방종이 말단 회장부위와 반복적인 장중첩중이 발생했던 1례를 부분 절제술로 치료하여 양호한 임상 경과를 경험하였기에 문헌 고찰과 함께 보고하는 바이다. Lipomas are one of the most common benign nonepithelial tumors of the colon which are often detected incidentally by radiologic investigation or on operation. These tumors are usually without specific symptoms. Colonic lipomas occur most often in the right colon, particularly in the ileocecal valve and the cecum. Most patients are asymptomatic. but tumors larger than 2 cm tend to produce a change in bowel habit. abdominal pain. rectorrhagia and complications including luminal obstruction or intestinal intussusception. Diagnosis can be made by colonoscopy abdominal CT. MRI, or barium enema. We report a case of lipoma of the cecum that originated in the submucosa and presented as a intussusception in a 50-year-old woman with a brief review of the literature.
홍대선,신중호,정원지,김성철 國立 昌原大學校 産業技術硏究所 1998 産技硏論文集 Vol.12 No.-
In this paper, a double pantograph type manipulator activated by two slider joints is proposed for a fuel handling machine in atomic power plants. The manipulator consists of two parallelogrammic structures considered as simplified 2-DOF linkage systems. The linkage motion is controlled in such a manner that the joint rates of two linkages are constant and the movement of end-effector is horizontal, because the constant joint rates have advantages for the stable movement of the system. In addition, the static deflection of the proposed mechanism was analyzed using a transfer-stiffness matrix method.
Compensation(보정), Positioning accuracy(위치 정밀도)
홍성오,홍순남,조규재,전언찬 東亞大學校 1997 東亞論叢 Vol.34 No.-
Thermal expension of the ball screw in semi-closed loop type CNC lathe directly introduced positioning errors along the travel axis In this paper the thermal displacement of the ball screw is estimated by using macro variables. The estimated displacementes of the ball screw are given to the NC in the form of pitch error compensation data into time interval.The thermal behaviour of the ball screw of the CNC lathe under the constant driving conditions was measured to examine the effectiveness of this compensation method. The results showed that thermal displacements of the ball screw were the positioning accuracy could be maintained to better than 6μm which using this compensation.