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      • 모드스펙트럼 및 시간이력 해석법에 의한 교량의 동적 거동에 관한 연구

        편도준,김운학 안성산업대학교 1998 論文集 Vol.30 No.2

        본 연구에서는 도로교량에 대한 효율적인 내진설계가 이루어지도록 하기 위해서, 다중모드 및 시간이력해석법을 통합하여, 교량의 진동 응답 및 특성을 파악할 수 있는 3차원 동적해석 프로그램을 작성하였으며, 후처리 프로그램을 사용함으로써 동적해석 프로그램에 의한 결과를 곧바로 내진설계에 반영할 수 있도록 하였다. 또한 교량의 형식, 규모, 지지조건 등의 변화에 따른 동적해석 결과로부터 적절하고 효율적인 내진설계의 기준을 제시하였다. 따라서, 본 해석 프로그램을 사용함으로써, 다중모드 스펙트럼 해석법에 의한 해석결과를 사용한 교각의 설계, 단일모드 스펙트럼 해석법에 의한 설계결과의 검토 및 시간이력 해석법에 의한 검토가 이루어 질 수 있다. For the sake of efficient seismic design of bridges, this study developed three-dimensional dynamic analysis program including multimode spectral analysis and time history analysis in order to predict the characteristics of seismic vibration and intended to made it user-friendly procedure of design by the post-processor. Using this program together with the post processor, the designer can easily and readily obtain the responses, in other words, moments, base shears, mode shapes and displacements, and their time history responses of bridges necessary to design purpose. And from the analysis results according to the variations of type, scale, and restraint or support conditions of bridges including sectional properties, applications of the effective and desirable seismic design are presented. Therefore, the design of pier using result from the multi mode spectral analysis, verifications of result by the single model spectral analysis and by the time history analysis can be successfully made.

      • 복수의 Albumin 대 Globulin(A/G) 비율에 관한 연구

        오도영,안승운 충남대학교 의과대학 지역사회의학연구소 1983 충남의대잡지 Vol.10 No.2

        Ascites were tapped in 67 patients consisting of 38 cases of liver cirrhosis, 10 cases of nephrotic syndrome, 11 cases of hepatoma, 5 cases of tuberculous peritontis, 2 cases of stomach cancer and 1 case of carcinomatosis, who were admitted during 1 year from Jun. 1982 through May 1983 in department of Internal Medicine, Chungnam National University Hospital. The protein contents and A/G ratio in ascites, serum A/G ratio were compared with one another among all groups, and at the same time, compared with the serum A/G ratio in control group. The results were as follows; 1. The serum A/G ratio in diseased groups were significantly lower than that in control group, i.e. 1.508 in control, 0.679 in liver cirrhosis, 0.505 in nephrotic syndrome, 0.902 in hepatoma, 0.565 in tuberculous peritonitis(P<0.005). 2. There was no remarkable difference between serum A/G ratio and ascites A/G ratio in same patient. 3. Between transudate groups, i. e. liver cirrhosis and nephrotic syndrome, and between exudate groups, i.e. hapatoma and tuberculous peritonitis, there is no remarkable difference in regard to protein content in ascites as well as protein ratio in ascites to serum, however, there is significant differences in regard to serum A/G ratio as well as A/G ratio in ascites (in transudate, P<0.02, in exudate, P<0.01).

      • 개방대학의 제도와 특징

        이원조,최상도 진주산업대학교 1992 論文集 Vol.30 No.-

        This survey was carried to know the system and peculiarity of the open university. The system of open university(univ.) is a continuing and retraining education system during one’s whole life for the complete or discontinous person in the whole course of school education. Also, the univ. has the open learning system, and there is no a partition in the school, home and society on the learning place. The univ. has an unregrlar course for craftman and a degree course for technologist. Also, the full student number of univ. is in self-control by the school regulations according to the capacity of the univ. and the demand of industial world. A term of school year is unlimitted to take 140 units, and especially the school expense is very cheap and decided by the applied credits. The learning methods are vary, there are in the attendance, mail, correspondence, field and self-control study. Otherwise, an attendece learning methods are contained the day and night, summer and winter, and full and part time. A person who was taked 140 units and passed the a graduation examination is received a bachelor.

      • KCI등재

        레이저 스페클간섭법에 있어서 스페클크기와 측정 한계에 관한 연구

        윤성운,김경석,양승필,정현철,김정호,이도윤 한국공작기계학회 1996 한국생산제조학회지 Vol.5 No.1

        The high coherence of laser beam has made it possible to observe interference effects even in the light scattered from rough surfaces. That's why, when object with a scattering surface is illuminated with laser light, we do see a speckled appearance due to random interference. This sort of unique property of laser speckle has brought into existence the new noncontacting techniques such as speckle metrology method of measuring deformation, displacement, and vibration etc of objects with high optical sensitivity. The measurable range of speckle metrology especially used to measure in-plane information, however, is limited by some factors, the so-called strain, rotation, tilt of surface and out of displacement perpendicular to the plane of analysis. This restrictions severly limits the measurable range of speckle metrology by causing the decorrelation of speckle patterns. It is the purpose of this paper to give a survey on the measurable limitation of speckle photography method that is one of speckle metrology. Namely we will discuss the mutual relationships and problems of each limitations adding the restriction of the largest and smallest displacement measurable with speckle methods.

      • 후풍이 있는 차량주행조건하의 회전차륜주위 유동장의 풍동모사실험

        유도정,박운진 한국기술교육대학교 1998 論文集 Vol.5 No.1

        The flowfield generated by a rotating cylinder on a plane moving at velocity one thirds faster than freestream was experimentally studied in a wind tunnel to simulate aerodynamic characteristics of rotating wheels of a road vehicle running leeward. In the flowfield around a rotating cylinder at Ub=U∞×1.34 and at Re?=4.2×?, unique mean flow and turbulence characteristics were confirmed by hot-wire measurements and frequency analysis. In the vicinity of a rotating cylinder, a unique turbulence structure on ? profiles was formed in hump-like shape due to the rotation effect, which was more prominent at leeward condition than at quiescent ambient flow condition. An air-pocket was confirmed at the front ground of the rotating cylinder at leeward condition. A peak frequency which characterized the effect of a rotating cylinder had the same value of te rotation rate of a cylinder. Far downstream beyond x/d>10, the flowfield generated by a rotating cylinder showed self-similarity in the profiles of mean velocity and turbulence quantities regardless of ambient flow conditions.

      • TSC 합성보의 제작방법에 따른 구조적 거동에 관한 실험적 연구

        이지운,김도훈,김성배,이창남,김상섭,김규석 대한건축학회 2004 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.24 No.1(구조계)

        Composite action can be achieved by providing shear connectors between steel top flange and concrete topping. Composite sections have larger stiffness than the summation of the individual stiffness of slab and beam, therefore, can carry larger load or similar loads with appreciably smaller deflection and are less prone to transient vibration. T-type Steel Composite beam(TSC-beam) is developed and tested. To make the part of steel beam, we used the way of welding two steel plates as well as the way of folding one steel plate.

      • 일본의 Food Coordinator 교육현황

        김운주,윤도경,송원희 충북대학교 교육 ·생활연구소 생활과학연구센터 2003 생활과학연구논총 Vol.7 No.1

        Food coordinator is coordination what the food is many kind of subject and people are satisfied, with their mind that food space is offered by coordinator. Food coordinator base spirit is understanded the other party position and new creation for mind by mind harmony. It exist independent center of specialist for the food that they are lots of kind abundant experience and status table coordinator, food designer, product menu developer, restaurant producer and dietary adviser. It is related with many kind of specialist, food adviser, catering service, menu development, product development and food merchandising. This monograph was considered general food coordinator and Japan food coordinator of the present condition, development direction. Afterwards, food world is getting to develop for food coordinator to bright future. Therefore, food coordinator is the exact meaning by this monograph and it is an opportunity for concerned and understanded many people.

      • KCI등재

        경남지역 주요 약용작물의 해충 종류 조사

        신현열,이동운,추호렬,정도철 경상대학교 농업생명과학연구원 2002 농업생명과학연구 Vol.36 No.4

        경남지역 주요 약용 작물 5종에 발생하는 해충과 기타 해로운 동물의 종류를 1999년과 2000년 2개년 동안 조사하였다. 홍화에서는 우엉수염진딧물과 꽃노랑총채벌레, 대만총채벌레, 오이총채벌레, 알락수염노린재를 포함한 13과 16속 20종이 확인되었으며, 산약에서는 꽃노랑총채벌레, 대만총채벌레, 애긴노린재를 포함한 6과 7속 10종이, 두충에서는 차주머니나방을 포함하여 6과 8속 8종이, 당귀에서는 대만총채벌레, 꽃노랑총채벌레, 차응애, 점박이응애, 복숭아혹진딧물을 포함한 11과 15속 16종이, 길경에서는 담배거세미나방, 파밤나방을 포함하여 10과 11속 14종의 해충이 확인되었다. Insect pests and some important arthropod pests infesting five medicinal crops were surveyed in Gyeongnam province in 1999 and 2000. Nineteen species of 16 genera in 12 families including Vroleucon gobonis, Frankliniella occidentalis, F. intonsa, Tetranychus cinnabarinus, Thrips parmi, and Dolycoris baccarum were identified from safflower. Ten species of 7 genera in 6 families including F. occidentalis, F. intonsa, and Nysius plebejus from yam, 8 species of 8 genera in 6 families including Eumeta minuscula from hardy rubber-tree, 16 species of 14 genera in 11 families including F. occidentalis, F. intonsa, T. kanzawai, T. urticae and Myzus persicae from Angelica gigas, 15 species of 14 genera in 11 families including Spodoptera exigua, and S. litura from balloon flower.

      • 충남대학교 캠퍼스내 야생조류의 분포에 관한 연구

        이준우,이도한,백운기 충남대학교 환경문제연구소 2000 環境硏究 Vol.18 No.-

        This study was conducted to investigate the distribution of wildbird at campus in Chungnam National University. The survey was carried over 5 districts by line transect method from May, 1999 to April 2000, The observed birds were 7 orders 21 families 46 species and 3,057 individuals, these consist of 25 species for residents, 12 species for summer visitors, 5 species for winter visitors, and 4 species for passage migrant. The average density of birds was 12 ea/ha, and main dominant species was Pica pica, Paradoxornis webbianus, Parus major, Aegithalos caudatus, Ixos amaurotis in order. Species richness of bird community showed a maximum value in spring, but density showed a maximum value in winter. Breeding bird community in study area were mainly predominated by hole-nesting guild, canopy-nesting guild and canopy-foraging guild. For the protection of wildbirds at campus, it needs to plant bushes around trails and to control users. Artificial food, water station and artificial nest are needed for the habituation of wildbirds.

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