활막육종

김재도,윤영민,손정환,홍영기,손영찬,박정호,Kim, Jae-Do,Yoon, Young-Min,Son, Jeong-Whan,Hong, Young-Gi,Son, Young-Chan,Park, Jeong-Ho 대한근골격종양학회 1996 대한골관절종양학회지 Vol.2 No.1

Synovial sarcoma is an uncommon malignant soft tissue tumor which usually occurs in young-aged person, and frequently involves the lower extremities. Many authors recommended wide excision, adjuvant chemotherapy and radiation therapy. The proposed factors that affect the prognosis are age, size of tumor, site of tumor in the body, depth of tumor, histologic grade and method of treatment. The purpose of the study is to analyze the factors that affect the 5-year survival rate. We retrospectively evaluated 19 cases of synovial sarcoma treated in the Kosin University Medical Center from Jan. 1982 to Dec. 1994. The overall 5-year survival rate was 47.6% and the 5-year survival rates were significantly higher(P<0.05) in the group with smaller size of mass. The significantly lower 5-year survival rates were observed in the patient with deeply located lesion and with higher histologic grade. The 5-year survival rates were higher in the patients treated with wide excision than in the patients treated with amputation. But there was no significant difference between these groups. The adjuvant chemotherapy and radiotherapy were performed. In conclusion, we suggest that the better prognosis will be observed in the patients with smaller size of tumor mass, superficially located and lower histologic grade.

2차원 가공정보의 DB구축을 통한 CAM시스템 개발에 관한 연구

손영지,박정보,김순경,전언찬 동아대학교 공과대학부설 생산기술연구소 1998 生産技術硏究所硏究論文集 Vol.3 No.2

NC code has to be made after changing the drawing information to DXF file, the convertig file. When the information is changed, the converted file is made decrease the unnecessary time of rapid feed during working and the DATA capacity after arranging the information ordered irregularly. This CAM program can be increased decreased uncomfortableness in contrast to use of each system based AutoCAD it can be increased productivity, example decrease of create time and product time about information, construct database of DXF code. And it can be used easely for the beginner of the minor enterprises. The connection of operations and the use of GUI increase business efficiency.

고등학교 화학과 일반화학에서 반응속도에 대한 내용 및 실험의 비교 고찰

지종기,손영락 慶北大學校 師範大學 1990 敎育硏究誌 Vol.32 No.-

Chemical Kinetics is a field of chemistry connected with chemical rate and chemical reaction mechanism. Today the plants and chemical procession of many chemical factories are planned to produce things in large quantities fast and economically. Therefore the importance of this chemical kinetics, connected with chemical procession, goes on increasing. So this paper will be useful for the teaching methods of high school chemistry and general chemistry in university as comparing and analyzing the contents and experiments of chemical kinetics in newly revised high school chemistry textbooks, general chemistry in university, chem study, and American textbooks(chemistry ; the study of matter). The results are as follows. 1. Comparing the relative importance of chemical kinetics in newly revised high school chemistry textbooks, university general chemistry, chem study, and American chemistry textbook total pages of newly revised high school chemistry textbooks are simillar to the others but interesting pictures and problems are short and chemical equations are too much. So as far as economical cirumstances permit, colorful pictures and photos or examples of the newest high technology must be used to arose interest. 2. Comparing the contents of newly revised high school chemical textbooks, the quantity of contents and reaction mechanism are not the same. So the contents must be complemented and amendmented. 3. Taking into account of the importance of chemical industry and chemical kinetics in everyday life, the contents must be complemented with examples observed in real life and applied field in chemical industry to arose interest. 4. Reducing the difference of high school textbooks and general chemistry in university and putting the concepts for mathmatical thinking into high school textbooks, we must make consistent contents. 5. Experimental process must be complemented and amended to be a systemic experiment considering the connection with theory. 6. The experiments of chemical kinetics in a high school chemical process are much weaker than college chemistry. So the experiments of chemical kinetics must be richer and the experiment of determining reaction order must be complemented.

국내육성 오차드그라스 품종들의 캘러스 형성율 및 식물체 재분화 효율

김기용,강경민,배은경,이인애,임용우,최기준,박근제,손대영,조진기 Plant molecular biology and biotechnology research 2003 Plant molecular biology and biotechnology research Vol.2003 No.-

Comparisons of callus formation ratios from seed explants, callus sizes, regeneration ratios from callus and regeneration efficiency for 4 orchardgrass (Dactylis glomerata L.) varieties (Three were developed in Korea and one was imported from foreign nation) are as follows; Jangbeol 102 (67.0%) has the highest callus formation ratio in 4 weeks incubated callus after bedding the seed explants, but Potomac (68.4%) has the highest ratio in 6-seek callus. Potomac (3.93cm) has the highest callus size in 4-week callus, but Jangbeol 101 (4.32cm) has the highest size in 6-week callus. Jangbeol 101 (17.7%) has the highest plant regeneration ratio in 4-week callus, but Potomac (37.4%) has the highest raion in 6-week callus. Jangbeol 102 (11.5%) has the highest plant regeneration efficiency in 4-week callus, but Potomac (25.6%) has the highest efficiency in 6-week callus.

간세포성 암종과 담관암종에서 Glutathione S-Transferase π의 면역조직화학적 발현

한상영,손영기,이종훈,박희승,노명환,최석렬,최홍조,허기영 大韓消化器病學會 1998 大韓消化器病學會誌 Vol.31 No.1

레이저 인터페로메타를 이용한 드릴링 머신의 틸팅에 관한 연구

이승수,손영지,장성규,전언찬 동아대학교 공과대학부설 생산기술연구소 1996 生産技術硏究所硏究論文集 Vol.1 No.2

This paper describes tilt angle measurement method. This method measures tilt angle of drilling machine using laser interferometer with simple sliding linear bearing. Measurement method is next orders. First, measurement position is considered pointed contact of two probes. And revolution of drill axis deliver pointed contact of probe. Second, so laser interferometer attach on sliding linear bearing, moving of probe influence laser reflector. And laser program displays this vibration of laser reflector. Namely, this vibration is tilt factor. A lot of error factor have an effect on accuracy to measurement of linear, angular, and so on. But this paper ignores some error factor, because these error festor is very smaller than tilt angle factor which we had been measuring values.

Glucose Oxidase가 척수지각신경절세포에 미치는 영향과 천마의 효과에 관한 연구

송호준,이용석,손영우,이강창,정종길,신민교,홍기연 대한본초학회 2002 大韓本草學會誌 Vol.17 No.2

Objectives : To clarify the cytotoxic effect of glucose oxidase(GO) and protective effect of gastrodiae Rhizoma (GR) on spinal sensory ganglion(DRG) neurons, neurotoxicity mediated by GO was measured by MTT assay and neurofilament enzymeimmuno assay(EIA). Methods : DRG neurons were cultured in the media containing various concentrations of GO for 3 hours. In addition, neuroprotective effects of GR, on GO-induced neurotoxicity in DRG neurons were examined after DRG neurons were preincubated with various concentrations of GR for 2 hours before 15mU/ml GO for 3 hours. Results : GO decreased remarkably cell viability in dependently in these cultures, and also RG increased cell viability and amount of neurofilament in DRG neurons damaged by GO. Conclusion : It is suggested that GO has toxic effect in cultured mouse DRG neurons, and also RG was effective in the protection of GO-induced neurotoxicity in these cultures.

광촉매를 이용한 셀룰로오스섬유의 기능화에 관한 연구 : 항균·소취성 및 자외선 차폐성을 중심으로 Focusing on Antibacterial activity, Deodorization & UV cut ability

권오경,문제기,손부헌,최영희 한국의류산업학회 2003 한국의류산업학회지 Vol.5 No.4

In this study, we measured the antibacterial activities, deodorization, UV cut ability, whiteness and SEM, according to the size(5 μm, 15 ?m) of ThiO₂, concentration(3%, 5%, 10%) and dipping temperature(50℃, 70℃) with using anatase type of TiO₂ photocatalyst. Photocatalyst is the substance which carries out functions, such as decomposition, removal, deodorization, antibacterial, etc. of a contaminant, in a place with light based on an oxidation-reduction reaction. The results of this study were as follow. Antibacterial activities are increased with increasing of the TiO₂'s concentration, and TiO₂ has high antibacterial activities for Staphylococcus aureus but it has low antibacterial activities for Klebsiella pneumoniae. The deodorization and UV cut ability is very good, therefore be able to get good effects with usingonly 3% of TiO₂. Every effects are increased by using small size of TiO₂ and high dipping temperature.

우리나라 일부 석면사업장의 석면폐 유병률

백도명,백남원,최정근,손미아,임정기,이원진,문영한,박정선,최병순 大韓産業醫學會 1995 대한직업환경의학회지 Vol.7 No.1

Asbestos industry has been in operation over 60 years in Korea. However, the prevalence of asbestosis has not been yet reported. With rapid turn-over of workers, previous cross-sectional studies of current workers on the job could not find cases with exposures long enough for the development of asbestosis. This study was done to evaluate asbestosis prevalence of those worksites with operation history of more than 20 years. In total, 139 workers from 5 worksites were examined. Asbestos industries covered in the study include 2 asbestos textile, 1 brake lining, and 2 ship repairing worksites. Chest x-ray was taken from all workers and read by two experts familiar with pneumoconiosis classification according to 1980 ILO guidelines. Those with findings compatible with asbestosis were further ckecked with high resolution computerized tomography (HRCT). Pulmonary function tests were done according to ATS guidelines, and occupational and previous medical history was taken through a standardized interview. Air-borne asbestos was measured according to NIOSH method 7400. The air-borne asbestos concentrations ranged from 0.2-1.3 f/cc for asbestos textile, from 0.7-1.0 f/cc for brake lining, and from 6.3-7.8 f/cc during asbestos removal at ship repairing worksite. Of the 139 workers 25 had abnormal chest radiographic findings, and 10 of them had findings compatible with pneumoconiosis. When work history and current asbestos measurements were accounted, 9 workers who had more than 10 years of asbestos exposure history showed chest radiographic findings of pneumoconiosis with Finally, 4 workers showed finding of pulmonary fibrosis and/or pleural thickening at HRCT, and 2 of them had restrictive lung function changes. The study results showed that, among 139 subjects, there were 4(3%) definite asbestosis cases confirmed with HRCT. The prevalence of probable asbestosis was 7% for 10-14 years of exposure, 13% for 15-19 years of exposure, and 23% for 20 or more years of exposure. The prevalence of compensable asbestosis with abnormal lung function was 4-6% for those with 15 or more years of exposure.

혈액관리학과 교육과정 개발

조갑철,최양자,신기수,손선영 적십자간호전문대학 2000 적십자간호전문대학논문집 Vol.22 No.-