로타 초음파 검사에서의 초음파 평가 결함크기와 실결함 크기와의 관계

성운학,김정태,박윤식 한국비파괴검사학회 2003 학술대회 논문집 Vol.- No.1

In order to evaluate the reliability of rotor forgings, it is very important to know the actual size of the defects in the rotor forgings. The determination of the defect size requires the accurate non-destructivc measurement. However, there may be some differences between the reported size with the ultrasonic non-destructive testing method and the actual size of defects. These differences may be a severe cause of errors in evaluation of rotor forgings. So, the calculated size with "Master Curve" considering safety factor, which is usually larger than the reported size, has been used in evaluation of rotor forgings. The relation between EFBH (Equivalent Flat Bottom Hole) size measured by non-destructive method and the actual size by destructive method in many rotors manufactured at Doosan was investigated. In this investigation, "Master Curve" compensating the differences between UT reported size and actual size of defects in our rotor forgings was obtainable. The applicability of this "Master Curve" as a way of calculating the actual defect sizc was also investigated. For the evaluation of rotor forgings, it is experted that this "Master Curve" may be used to determine the accurate actual size of defects.

유아에서 발생한 재발성 외음부 콘딜로마 1례의 치료

홍정희,문성택,김윤숙,전섭,최승도,선우재근,배동한 순천향의학연구소 2007 Journal of Soonchunhyang Medical Science Vol.13 No.2

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급성 뇌경색 환자에서 경색 위치가 심근 효소치 상승에 미치는 영향

윤경호,박현영,박성욱,장혁,김요식,조광호,유남진,김남호,오석규,정진원 圓光大學校 醫科學硏究所 2003 圓光醫科學 Vol.18 No.2

地區單位計劃의 物理的 規制要素가 街路景觀에 미치는 影響에 관한 硏究

정성구,최민후,윤진보,신남수 대한건축학회 2004 대한건축학회논문집 Vol.20 No.10

Emphasis has recently been laid on the importance of street space that constitutes urban space in stimulating and strengthening the functions of the downtown area In most urban areas, however, street space has deteriorated so much that it reveals barrenness This situation is owing not to the lack of proper understanding about the importance of street space planning, but to the paucity of accumulated study on the correlation between the spatial consciousness of man as the subject of a street space evaluation on the one hand and the constituent elements as the object of spatial formation on the other District unit planning is a social system that is concerned with developing street space It maps out ideal urban space for better urban environment It also aims to better utilize urban space in accordance with the size and complexity of a city The purpose of this thesis is to examine the correlation between urban planning control elements regulating constituent elements of street space and the structure of man's psychological evaluation of the streetscape It explores the influence of physical regulatory elements on the streetscape, thus providing basic data and guidelines for planning a better streetscape It makes a psychological analysis of different applications of controlling elements by employing a semantic differential method and a CG simulation The procedure of my research is first to choose adjectival pairs that describe street space through bibliographical study and preliminary survey, and then to select physical regulatory elements concerning district Unit planning My study also shows the influence of the design control elements of distinct unit planning on the streetscape, by experimenting with those elements by means of CG simulation It examines variables on the axis of psychological factors according to the variation of regulatory elements and the degree of the influence of those variables

기포탑반응기에서 연속공정을 이용한 BaTiO_(3)분말의 제조

현성호,김정환,허윤행 대한위생학회 1996 대한환경위생공학회지 Vol.11 No.1

The synthesis of high purity and ultra-fine BaTiO_(3) by precipitation with gaseous NH_(3) as precipitator was investigated to find an alternative process to solve various problems of recent wet methods. A synthesis process for BaTiO_(3) powder using NH_(3) gas as a precipitator in a bubble column reactor was experimentally successful in developing the production process of piezoelectric ceramic BaTiO_(3) powder. And a 2.33ml/sec is approprite for the feed flow rate, BaTiO_(3) powder produced under above the condition is spherical type, its particle size was about 0.2㎛.

보존적 치료로 회복된 망경색에 의한 급성복증 1예

김정념,이숭환,김정식,김진호,배윤오,박성규,윤상정,한현영,이헌영 충남대학교 의과대학 의학연구소 2003 충남의대잡지 Vol.30 No.1

Omental infarction, the end result of impaired perfusion to the greater omentum, is a rare benign self-limiting clinical entity. The main clinical symptom is non-specific localized abdominal pain with a moderately raised white blood cell and erythrocyte sedimentation rate. These findings often mimic an abdominal surgical emergency. This condition is often misdiagnosed as acute appendicitis or cholecystitis. The characteristic feature of CT scan and ultrasonography provide non-invasive diagnosis in most patients with omental infarction. We report a case of patient whose CT scan showed the characteristic finding of omental infarction. The patient was improved spontaneously only with conservative care.

유산소성 운동이 심폐기능과 체지방에 미치는 영향

홍성찬,김영빈,박병근,정동혁,이정윤,김유성 圓光大學校 附設 體力科學硏究所 2005 體力科學硏究 Vol.28 No.-

The Purpose of this research is to examine the effect of the aerobic exercise duration on cardiorespiratory function and body fat. Total 14 divided into two groups 7, for the control group and the other for the experimental group 7. The subjects of experimental group had 8 weeks aerobic program in the given intensity, during which the changes in cardorespiratory function and body fat were measured three times, at each end of 0th, 8th week. The research is comcluded as follows. 1. After 8 Weeks, aerobic exercise brought the decrease of maximum HR and the increase of VE with statistically significant(p<.05). 2. Aerobic exercise brought along the change of fat, especially the decline of the rate of fat and the amount of fat. In conclusion, aerobic exercise helps overweight women to reduce their weights and the amount of fat and to get rid of elements that cause various geriatric diseases. Therefore, overweight women as well as common adults are advised to take aerobic exercises

지구과학Ⅰ의 e-learning 교수·학습자료 개발 및 적용 : 지구환경변화 단원을 중심으로

김윤정,임성규 경북대학교 과학교육연구소 2008 科學敎育硏究誌 Vol.32 No.2

이 연구의 목적은 지구과학1 교과의 지구환경변화 단원의 내용을 다양한 저작도구를 이용하여 동영상, 플래쉬 자료를 활용한 e-learning 교수·학습 자료로 제작하여, 수업에 적용 하였을 때의 결과를 알아보는데 있다. 강의식 수업과 e-learning 교수·학습 자료를 수업에 적용하여 하였을 때의 교사와 학생의 반응을 사전·사후설문조사를 통해 비교하였다. 그 결과, 교사를 대상으로 한 설문결과를 보면 ‘인터페이스’ ‘상호작용’ ‘구성체제’ ‘교수의 편의성’과 ‘자료의 개별 활용’면에서 만족을 보이고 있다. 학생을 대상으로 한 설문결과 사전검사에서는 실험집단과 비교집단 모두 대부분 지질시대 학습내용의 지적인 면과 흥미 면에서 모두 관심을 적게 보였으나, 사후 검사에서는 모두 긍정적인 효과가 있었고 특히 실험집단이 비교집단에 비에 높은 결과를 보였다. 자료의 활용면에 있어서도 대부분의 학생들이 긍정적인 기대감을 가지고 있다는 것을 알았다. 결과적으로, 개발된 본 e-learning 교수·학습 자료는 수업시간에 활용 하였을 때, 교사와 학생 모두에게 긍정적인 학습효과가 있다고 할 수 있다. 이는 다양한 매체를 활용하여 흥미를 유발하고, 학습 후 바로 테스트가 가능하여 피드백 효과를 높였고, 질문코너가 있어 교사와 학습자간에 실시간 교통함으로 e-learning 교수·학습자료가 갖는 맹점도 보완한 결과라고 볼 수 있다. 그러나, 본 연구는 대상이 특정지역과 성별을 대상으로 하였기 때문에 좀더 폭넓은 대상과 성별에 대한 연구가 필요하며, 교수·학습자료의 적절한 활용방안과, 이에 대한 구체적인 논의도 필요하다. The purpose of this study was to analyze the use of the e-learning courseware which is about the properties of earth environmental change. I made these materials using Lectora program, and to have more visual effect, I used movies and animations as much as possible. A lot of movies and pictures are added to help student understand the geographical age. Especially the forms of performance test questions are various, and student can check the answer right after taking test. Because of this, they can get a immediate feedback. In addition, this allows you to adapt yourself to the age of information by using the internet. Every plug-in is already linked together, so you only need to once. Pictures and moving reflections can be edited with ease. I hope this study will provide valuable aid for the education of earth science and a chance to develop better materials.

운동기간에 따른 혈중지단백대사 및 비만호르몬의 변화

홍성찬,함용기,김영빈,박병근,정동혁,이정윤,권성택 圓光大學校 附設 體力科學硏究所 2003 體力科學硏究 Vol.26 No.2

The purpose of this study is to elucidate the effects of regular swimming exercise on blood lipoprotein metabolism and leptin. In this study, swimming(HRmax 50-75%, 60min/day, 5day/week) was performed and 18 were participated for study during 16 weeks. They were divided into two groups, one group as experimental group(n=9) and the other as control group(n=9). A measured factors were TC, TG, HDL-C, LDL-C and leptin.. All data were expressed as mean± standard deviation by using spss package program(win 9.0), one way anova and independent t-test was used to analyze the difference of exercise duration(0week, 8week, 12week, 16week) between groups. For all statistics performed statistical significance was set at p<.05. After exercise intervention, TC, TG, HDL-C, LDL-C and leptin were found to have more significant effects in the experimental group than control group. This results indicated regular swimming exercise training is beneficial to prevent and treat cardiovascular disease and obesity.

순차 컴비네이터를 기반으로 하는 병렬 그래프 리덕션

徐正勳,鄭盛允,尹英雨 嶺南大學校 工業技術硏究所 1992 연구보고 Vol.20 No.1

This study discusses the graph reducer to improve the execution speed of functional languages. We develop the G-machine compiler which translates serial combinator to a sequence of instructions. The SubMiranda, which is a subset of the Miranda, is chosen as a test language. The implemented G-machine compiler translates serial combinator to an intermediate code, G-code, and then does macro-expansion to create a target code, C-code.