도시지역 건축물의 석면슬레이트 지붕재료 분포특성 연구

김영찬(Kim Young-Chan),손병훈(Son Byeung-Hun),박화미(Park Wha-Me),홍원화(Hong Won-Hwa) 대한건축학회 2011 대한건축학회논문집 Vol.27 No.1

Asbestos hazards have been studied by many people. Approximately 10% of slate containing asbestos, and asbestos which was imported in the 1970s was used to construct as building materials. The slate company, Asano which is located in Young-san in 1930's becomes the beginning and the slate is coming to be used until recently. Since 1960 in the aftermath of the Korea Saemaul Movement it was greatly expanded slate industry. Slate containing Asbestos and the surface is likely to drift over time, the government managed the comprehensive plan of 2010 Asbestos slate farmhouse in the National Survey on the usage of the progress and improve farmers slate roof construction. Non-conventional evaluation of the slate there is no index, especially in the concentration of urban population exposure to asbestos is a wide but a range of survey data on an unprecedented situation is urgent so long-term management measures are urgently needed. In this study, slate intergovernmental basic data for comprehensive measures proposed.

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.

일개대학병원에서 수막알균 백신 사용의 경험

손동욱,이찬우,정영국,조래정,이혜경,김은실,이진수,정문현 대한감염학회 2007 감염과 화학요법 Vol.39 No.6

Meningococcal infection is a life threatening disease that leaves serious sequelae in spite of appropriate treatment, thus vaccination for high risk groups are Important for the prevention of meningococcal diseases. However, the vaccine for Neisseria meningitidis has not been available in Korea until we introduced bivalent (serogroup A and C) polysaccharide vaccine for the first time for relief works in our university hospital. The vaccine was administered from January 2005 to March 2007 to 317 persons. of the groups administered, the largest group among them were 133 (133/317, 42%) students who planned to study abroad and needed the vaccination for secure entrance to school dormitories. This group was followed by health care workers, travellers to the regions of the world with high risks of meningococcal diseases, and splenectomised patients. To ratioalize the domestic use of meningococcal vaccine, the availability of vaccines first needs to be simplified by introducing them to the domestic market; for this to be possible, the approval system for vaccines should be reformed and epidemiogical studies need to be carried out.

외측 슬개 지지대 마사지의 임상적 고찰

손정환,박찬재,이영구 KOSIN UNIVERSITY COLLEGE OF MEDICINE 2006 高神大學校 醫學部 論文集 Vol.21 No.1

Backgrounds : For tension and adhesion release methods of lateral patellar retinaculum, causing anterior. Knee pain, lateral patellar retinaculum release such open release and arthroscopic release have been conducted as surgical method. But authors conducts a lateral patellar retinaculum masage-noninvasive methods to analyzing pain severitiy, radiological results, clinical patellar function change. Materials and Methods : We preformed a study 107 conducted lateral patellar reticulum massages of 94 patients with osteoarthritis whose patellar tilt angle was above 6 degree between January 2000 and June 2004. We evaluated them per six months to 2 years. We analyzed VAS(visual analogue scale) for a measurement of anterior knee pain and patellar tilt angle for radiological evaluation. For clinical evauation, HSS Knee Score were analyzed. Results : VAS about anterior. knee pain evaluation is decreased from average 8.5 to 3.4 after procedure. On radiological aspect, Patellar tilt angle decreased from average 6.8 to 5.7, but it's not shown a statistical worthy correlation. HSS Knee Score increased from 70.5 to 82.7 after procedure. Conclusion : We conducted lateral patellar retinaculum massage to patients complaining anterior knee pain who shown clinically or radiologically lateral patellar retinaculum tension. Clinical improvement of knee function and decrease of pain are observed.

신경회로망을 이용한 터빈로타 디스크 키웨이의 결함 검출

이병우,이종오,윤운하,이병우,서원찬,이종규 한국비파괴검사학회 2003 한국비파괴검사학회지 Vol.23 No.1

최근 터빈 로타 디스크 키웨이에서 많은 응력부식균열이 발견되었으며, 터빈설비의 중대한 파손을 예방하기 위해 이러한 균열은 조기에 검출 및 평가되어야 한다. 본 연구에서는 초음파탐상의 RF(radio frequency) 신호를 역전파 알고리즘에 근거한 신경회로망에 적용하여 키웨이 주변의 균열에 대한 위치, 크기 및 방향성을 평가하였다. 각 반사영역에서 수신된 여러개의 피크로 나타나는 RF 신호를 각 반사영역에 대해 하나의 최대 피크를 가지도록 처리한 후, 트랜스듀서의 위치 정보와 각 반사파의 도달시간이 들어있는 주사 데이터를 작성하였다. 이 주사 데이터로부터 각 반사영역 사이의 시간차이와 트랜스듀서의 위치 정보를 신경회로망에 적용한 결과 키웨이에서 시작된 균열의 위치, 크기 및 방향성을 평가하는데 유용함을 알 수 있었다. A number of stress corrosion cracks in turbine rotor disk keyway in power plants have been found and the necessity has been raised to detect and evaluate the cracks prior to the catastrophic failure of turbine disk. By ultrasonic RF signal analysis and using a neural network based on back-propagation algorithm, we tried to evaluate the location, size and orientation of cracks around keyway. Because RF signals received from each reflector have a number of peaks, they were processed to have a single peak for each reflector. Using the processed RF signals, scan data that contain the information on the position of transducer and the arrival time of reflected waves from each reflector were obtained. The time difference between each reflector and the position of transducer extracted from the scan data were then applied to the back-propagation neural network. As a result, the neural network was found useful to evaluate the location, size and orientation of cracks initiated from keyway.

롤의 배열이 자동차용 강판의 두께편차 및 마멸에 미치는 영향

손영지,김순경,전언찬 동아대학교 생산기술연구소 2000 生産技術硏究所硏究論文集 Vol.5 No.1

Work roll wear in the cold rolling of mild steel strip is strongly affected by rolling materials, rolling conditions such as roll arrangement in the cold rolling mill and lubrication. The tests were performed to find the effects of roll arrangement in the cold rolling mill on the work roll wear under the same lubricating conditions. The obtained results are as follows : If the distance of cold rolling is about 60 km, the surface roughness of its was reduced by half(Ra 0.49μm) and Pc(peak count) also was decreased to 60 ea/cm. It is easier for CC(Continuous casting) to make a slip on rolling than IC(Ingot casting). It is due to surface mirror in which first residual product appears and iron powder included Al2O3 is sticked. Because bending degree of 4Hi-rolling mill is higher than 6Hi-rolling mill, the first surface mirror was occurred to its center-point which is loaded strongly. 6Hi-rolling mill shape-controlled by intermediate roll doesn't need the initial crown to work roll. Therefore, fatigue and wear would appear a little bit.

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.

개에서 발생한 수컷 가성 반음양 1례

이기찬,손정민,윤기영,최호정,박성준,이영원,정성목,신상태,조종기 忠南大學校 獸醫科大學 附設 動物醫科學硏究所 2006 動物醫科學硏究誌 Vol.14 No.-

In this report, we present a case of the male pseudohermaphrodite in a beagle dog. The animal was subjected for examination due to enlargement of clitoris that was shown as reddish finger-like structure protruding from the vulva. Visual examination of the internal genitalia revealed that the animal possessed both testes and uterus. Based on the findings of physical examination and exploratory laparotomy, it was tentatively diagnosed as male pseudohermaphrodite. Internal genitalia and enlarged clitoris were removed for the prevention of pyometra and Sertoli cell tumor.

Two Stage 발효에 의한 고산도 식초 생산

이영철,이금용,김형찬,박기범,유익제,안평욱,최춘언,손세형 한국산업미생물학회 1992 한국미생물·생명공학회지 Vol.20 No.6

산업적으로 산도 17.0% 이상의 고산도 식초를 생산하기 위하여 반연속식인 1st stage와 유가식인 2nd stage로 구성된 two stage 초산 발효를 온도 30 ℃, 교반속도 600 rpm, 통기량 0.1 vvm에서 실시하였다. 1st stage에서 초기 에탄올 농도를 50.0 g/ℓ, 잔류 에탄올 농도를 5.0 g/ℓ로 정하여 반연속적으로 초산발효를 하고, 2nd stage 에서 발효시간의 경과에 따라 에탄올을 유가식으로 첨가하여 초산발효액내의 에탄올 농도를 5.0 g/ℓ에서 10.0 g/ℓ로 유지했을 때 산도가 17.6%인 고산도 식초를 생산할 수 있었으며, 또한 이 ??의 최대 초산 생산성은 3.3 g/ℓ·hr였다. The production of vinegar containing 16.0 ∼18.0% of acetic acid was examined in two stage fermentation consisting of semi-continuous and fed-batch type. The optimum conditions were obtained when the fermentation was carried out at agitation of 600 rpm, aeration of 0.1 vvm and temperature of 30℃. The initial and residual ethanol concentration in 1st stage were 50.0 g/ℓ and 5.0 g/ℓ, respectively, and the ethanol concentration in 2nd stage was maintained from 5.0 to 10.0 g/ℓ. The maximum productivity was 3.3 g/ℓ-hr and the acidity was 17.6% after the two days of acetic acid fermentation.

진행성 위암에 동반된 위 칸디다증 1예

이두영,김성호,선제형,박진석,손존광,선홍주,이승,박찬국 朝鮮大學校 附設 醫學硏究所 2004 The Medical Journal of Chosun University Vol.29 No.2

Gastric candidiasis is an uncommon disorder. It is an opportunistic pathogen in immune compromised individuals, alcoholics, persons treated with broad-spectrum antibiotics, immunosuppressive and chemotherapeutic agents. Besides, the use of drugs that reduce the gastric acid production may be a cause of gastric candidiasis. We experienced a case of gastric candidiasis following advanced gastric adenocarcinoma. A 85-year-old woman was admitted to our hospital because of epigastric soreness. Endoscopic findings revealed a large ulcero-infiltrating mass with yellow exudate at cardia of the stomach, which suggested an advanced gastric cancer. Endoscopic biopsy revealed spores and pseudohyphae infiltrating through the ulcerated stomach wall, diffuse infiltration of tumor cells and abortive tumor glands. After treatment with fluconazole 100 mg daily for 21 days, no evidence of the gastric candidiasis was seen on endoscopic biopsy and pathologic findings. The case is herein reported of gastric candidiasis following advanced gastric adenocarcinoma along with a review of corresponding literature.