자발성 기흉을 동반한 폐림프관평활근종증 1예

안용환,정종훈,김소영,김휘정,김학렬,양세훈,최순호,문형배,조향정,정은택 圓光大學校 醫科學硏究所 2005 圓光醫科學 Vol.20 No.1

염색체 4q21-qter에 대한 페인팅 Probe 제작

박선화,안희성,전용혁 대한해부학회 1995 Anatomy & Cell Biology Vol.28 No.6

아파트 시공시 발생한 초기균열의 실태분석 및 대책에 관한 연구

안용선 嶺南大學校 工業技術硏究所 1997 工業技術硏究所論文集 Vol.25 No.1

The concrete crack is generally accepted as unavoidable one in concrete structure. As it is well known, the crack leads to the corrosion of reinforcing steel bar and finally weaks the inner structure endurance in concrete structure. Especially, the incipient crack originated from the construction of apartment houses, is often neglected as a minor problem in Korean construction sites. In case of the construction apartment houses, the occurrence place of crack is recognized well among the supervisors on sites, but the frequency number and width of crack are not known until now.The counterplan, accordingly, to prevent the crack has not been considered, because there is no reality condition such as the frequency and width of crack. Therefore, in this study, the reality of crack should be understood and the counterplan to avoid the crack in view points of design and construction is suggested. Finally, if it is difficult to find the cause of crack and its measure, the criteria of repairing should be established.

넙치 및 조피볼락용 습사료의 보관조건에 따른 안정성 평가

안창범,주용석,정관식,서경란,신태선 여수대학교 1998 論文集 Vol.13 No.2

본 실험은 습사료를 대상으로 보관조건(온도별, 시간별)에 따른 지질의 산화진행 정도를 파악하여 사료의 효율적인 이용성을 구명하고자 산가(acid value, AV), 과산화물가(peroxide avlue, POV) 및 비타민 함량을 분석하였다. 생사료와 분말배합사료를 혼합하여 제조한 습사료는 혼합비가 8:2 사료에서 5:5 사료보다 높은 AV와POV를 나타내었고, 보관기간이 경과함에 따라 보관조건과는 상관없이 8:2 사료에서 빠른 산패를 보였다. 산화진행속도는 4℃ 보관조건하에서는 48시간째, -15℃ 보관조건하에서는 72시간째에서 빠르게 일어났다. 60,000 Lux이상의 직사광선 노출하에서의 AV,POV는 노출시간이 길어질수록 증가하였고, 8:2사료에서 빠르게 변화하였다. This experiment was conducted to investigate rancidity in moist pellet(MP) during various practical condition of handling and storage conditions. The experimental moist pellet diets were prepared by mixing frozen raw fish (FRF) and commercial compound meal (CCM) in ratio of 8:2 and 5:5, respectively. Immediately before and after manufacturing of MP, the MPs were stored at 4℃ and -15℃, and exposed under the sunlight(30±2℃, 60000Lux). The rancidity of each MP was determined from 1 to 96 hours after pellting. The acid value (AV) and peroxide value (POV) in the diets stored at 4 and -15℃ increased rapidly after 48 and 72 hours, respectively. For the sample exposed sunlight, AV and POV were slightly increased with the exposed time. The rancidity increased in the 8:2MP(FRF : CCM) than in the 5:5MP(ERF : CCM) at all storage condition and the amount of vitamin E in MPs decreased rapidly as AV and POV increased.

교사가 인식하는 특성화 고등학교 교육의 문제점

이용환,금지헌,안선영 한국농업교육학회 2007 농업교육과 인적자원개발 Vol.39 No.4

이 연구의 목적은 특성화 고등학교에 근무하는 교사가 특성화 고등학교에 근무하면서 인식하는 문제점을 파악하고,특성화 고둥학교가 나아가야할 방향을 제시하는데 있다. 이 연구는 교사가 인식하는 문제점을 파악하기 위해 델파이 방법으로 연구되었다. 델파이 패널은 특성화 고등학교로 신설 및 전환된 지 5년 이상 된 학교의 특성화 또는 실과 부장 교사 18명으로 구성되었다. 3차의 델파이 조사가 이루어 졌다. 1차 델파이 질문지는 개방형으로 교사가 인식하는 특성화 고등학교의 문제점을 자유롭게 기술하도록 하였다. 2차 댈파이 질문지는 1차 델파이 조사를 통해 얻은 문제점 54개에 대해 전문계 고등학교의 입장과 특성화 고등학교의 입장 두 가지 측면에서 문제의 심각성을 체크하도록 하였고 추가적인 의견도 들었다. 3차 텔파이 조사는 2차 델파이 조사 결과 얻은 33개의 문제점에 대해 사분위수를 제시하고 심각성을 체크하도록 하였다. 이 때 사분 위수를 벗어나게 되면 그 이유를 적고,추가적인 의견도 받았다. 그 결과 29개의 문제점이 도출되었으며 그 중 심각성이 높은 13개의 문제점은 학생,교사,교육과정,인식 둥에 관한 것은 아래와 같다. 학생과 관련한 문제점: ① 학생들의 대부분이 진학을 희망한다. ② 전반적인 학생의 가정환경 열악하다. ③ 우수한 학생을 확보하기 어렵다. 교사와 관련한 문제점: ① 교사의 행정업무가 과다하다. ② 우수한 특성화 분야 교원을 확보하기 어렵다. ③ 전공교과 교사의 수업시수가 과다하다. 교육과정과 관련한 문제점: ① 학생의 다양성을 충족할 수 있는 특별교육과정 운영을 위한 예산이 부족하다 ② 특성화 프로그램 벤치마킹 대상이 부족하다. 인식과 관련한 문제점: ① 직업교육에 대한 사회 전반적인 인식이 부족하다. ② 특성화 교육에 대한 학부모의 인식이 부족하다. ③ 특성화 교육에 대한 중학교 교사의 인식이 부족하다 기타 문제점: ① 지속적인 지원이 미흡하다. ② 기초기능 함양의 전문 프로그램 제공처가 부족하다. The purpose of this study was to identify the major problems that teachers perceived in implementing specialized vocational high school education, Specialized vocational high schools are promoted as the main national policy to improve vocational education and strongly supported by the Ministry of Education and Human Resources Development. The Delphi technique for obtaining group consensus was employed to achieve the objective of this study. A panel was composed of 18 head teachers as expert participants selected purposively from 22 specialized vocational high schools which were established over 5 years after transferring as a specialized system. Each panel participant received questionnaires to fill-up through e-mail and responded to it. Three sets of questionnaires were prepared by the researchers. The first questionnaire was an open style to express freely each one's opinion on problems related to specialized vocational education. The second and the third questionnaires composed of questions on scale using the Likert type. Several problems were identified, Problems related to specialized vocational high school students were as follows: ① Most of the students want to go to college/university instead of entering the workplace, ② Generally, they are from a socioeconomically disadvantaged background. ③ It is difficult to attract talented students, which has been a chronic problem for vocational high schools, Problems related to teachers were as follows: ① There are excessive clerical work for teachers ② It is difficult to recruit qualified and competent teachers for the specialized areas ③ Teachers are over-burdened with teaching too many hours of vocational classes, Problems related to the curriculum were as follows: ① There are few programs to benchmark specialized vocational education programs and ② There are no systematic assistance to improve basic academic skills of the students, Problems related to recognition were the following: ① Specialized vocational education carries an unfavorable image, ② There is a lack of parents' recognition of the specialized vocational education and ③ Middle school teachers do not have sufficient information or hold unfavorable perception of specialized vocational schools. Other problems identified include ① There are inadequate financial resources to operate the specialized education programs particularly in coping with student's diversified needs and ② There is a lack of continuous governmental support for the specialized vocational education programs.

주물사업장에서 발생하는 호흡성분진의 농도 및 석영함유량에 관한 연구

박용선,노영만,김현욱,한진구,안연순,강성규,김정만 한국산업위생학회 2003 한국산업보건학회지 Vol.13 No.1

This study was performed to measure and evaluate the concentration of respirable dust and quartz content at molding and shakeout process in the foundry. The 129 samples in 30 foundries were collected using 10mm Dorr-Oliver nylon cyclone and analysed for quartz concent by Fourier Transform Infrared Spectroscopy. The average quartz concentrations in the respirable dust was 0.0273mg/㎡ and ranged from 0.0007 to 0.3757mg/㎥. The average quartz concentrations of shakeout process wsa significantly higher than that of molding in the foundry. The average of respirable dust in foundry 102129mg/㎡ and ranged from 0.1524 to 7.0428mg/㎥. But there is no significant difference between molding and shakeout processes. The average contents of quartz for OEL-MOL was 2025% and ranged from 0.05 to 32.79% The non-compliance rates for quartz were 22.96% in Korea-OEL and 34.01% in ACGIH-TLV and NIOSH-REL, and 35.03% in OSHA-PEL. The airbome dust in the foundry was effectively controlled when local exhaust ventilation and/or wetting system were operated. The result of this study therefore showed that the engineering controls and periodic environmental suveillance in foundry will be very important for preventing the health effects of workers exposed to quartz.

流動層 燒却盧에서 段階的 燒却法에 의한 都市下水슬러지의 燒却

신용섭,안선국 慶星大學校 環境問題硏究所 1997 環境硏報 Vol.7 No.1

The characteristics of combustion and pollutant emission from a fluidized bed incinerator, in which waste activated sludge from municipal sewage treatment plant was burnt on the staged combustion modes, were investigated under the several operating conditions. The dried waste activated sludge with the moisture content of 4.5% and the heating value of about 4,200 kacal/kg dry solid was used in this study. With the variation of operating paramenters, such as bed temperature, superficial air velocity, and excess air ratio, temperature distributions in the incinerator and characteristics of ash drain rates and pollutant emission from the incinerator were measured. As the dried sludge had high volatile content, the maximum temperature appeared at upper region of fluidized bed surface in measured temperature distributions and the axial position of maximum temperature moved up with increase of superficial air velocity. The measured combustible contents of fly ash and bottom ash were lower than 3% and 0.4%, respectively. Thus, combustion efficiencies showed very high values of over 99.6% and were not severly affected by the variations of bed temperature and superficial air velocity. However, as the excess air ratio was increased, combustion efficiencies were decreased by the temperature drop in the freeboard region. The concentration of Co in exhausted gas was increased substantially with the increase of superficial air velocity which could reduce residence time of devolatilized gas in the freeboard. However, concentrations of SO₂and No?? were decreased slightly with the increase of superficial air velocity.

골다공증의 위험인자 : 아산시 지역 주민을 대상으로

김용배,장원기,황보영,김화성,안규동,이병국,이용진,이남수,이상건,이상범,이상우,이선정,이성수 순천향대학교 2006 Journal of Soonchunhyang Medical Science Vol.12 No.1

Objective : As the average lifespan of human increases, osteoporosis and osteoporosis-related fractures have become major health care problems. Despite recent advances in medical treatment, few studies have assessed the recognition of osteoporosis in general adults. This study examined the recognition of osteoporosis and analyzed the relating factors. Method : A population-based sample of 1086 adults in Asan-city, Korea was investigated with questionnaires and height, weight, Information regarding the general characteristics(gender, age, economic state), lifestylef exercise, smoking, alcohol),medical history(progestin, GH, steroid, calcitonin, PTH), demographic parameter, obesity, stress, and family history was collected through an interview using a structural questionnaire. The level of obesity was measured by the body mass index(BMI). BMD(Bone mineral density) at the lumbar spine and femoral neck was measured by dual energy X-ray absorptiometry. Osteoporosis was considered to be T-score below -2.5. Results : The prevalence of osteoporosis increased progressively with age, decreased with BMI and predominant in women by the result of x^(2) -test, T-test. Age, weight, BMI were significantly correlated with osteoporosis by the result of Pearson correlation ana1ysis(P<0.05). And age, gender, BMI, family history of osteoporosis were proved to be significant risk factors of osteoporosis by the result of multiple logistic regression(P<0.05). Conclusion : These results suggest that age, gender, BMI might be the most important risk factors of osteoporosis. And the history taking about family history of osteoporosis is helpful for diagnosing osteoporosis.

시스템 가설재의 구조성능 평가에 관한 연구

김성수,안용선,박재형,이재연 牧園大學校 建築·都市硏究센터 1999 建築·都市環境硏究 Vol.7 No.-

This paper describes analysis and test procedures for the estimation of structural performance of SSPS system(Systematic Steel Pipe supporting system) developed through previous researches. Section of each members which composes proposed SSPS system has large influence on weight and capacity of steel pipe supports. Therefore, parameter analysis using the program will be first performed to decide the shapes and details of SSPS system that is light-weighted for easy carrying, setup, dismantling and has high capacity. For evaluation of structural performance of proposed SSPS system, several experiments is carried out under various assembling conditions.

강관지주의 구조성능 평가에 관한 연구 : Field Surveys on the Use of Temporary Pipe Supports 강관지주의 운용에 관한 현장조사를 중심으로

이재연,안용선,김성수,윤승조,윤현도 牧園大學校 建築·都市硏究센터 1997 建築·都市環境硏究 Vol.5 No.-

This paper describes the procedures and results of field surveys on the use of temporary pipe supports as a preliminary research on the estimation of structural performance of the supports. Question surveys and measuring surveys for the supports were performed in 25 construction fields. From the field survey results, the problems and improvement methods in the use of the supports were presented, and the experiment data for the estimation of structural performance of the supports were accumulated.