연령증가에 따른 혈압요소들의 좌심실비대 및 관동맥질환과의 관련성

박재석,박창규,박미영,박재형,김용현,나진오,신성희,서순용,홍순준,박성미,임홍의,김응주,서홍석,오동주,노영무 대한순환기학회 2004 Korean Circulation Journal Vol.34 No.2

울산지역 유아의 영양 상태에 관한 연구 : Ⅰ. 식습관과 식행동

홍순명,서영은,김현주 울산대학교 2001 생활과학논문집 Vol.3 No.1

본 연구는 울산에 거주하는 학령 전 어린이 142명을 대상으로 식습관과 식행동에 관하여 조사하였다. 조사대상 어린이는 남아 72명, 여아 70명으로 연령분포는 2세에서 7세 이었으며 규칙적인 식사시간을 지키는 남아가 48.6%이고, 여아는 42.9%였다. 조사대상자의 식습관에 있어서는 남아가 '좋은 편(13.9%)', '보통(58.3%)', '나쁜 편(27.8%)'으로 나타났고, 여아의 경우는 '좋은 편(11.4%)', '보통(62.9%)', '나쁜 편(25.7%)'으로 나타났다. 식습관 점수는 '보통'으로 평가되었고 남녀간의 유의적인 차이는 없었다. 조사대상자들의 긍정적인식행동 점수는 남아의 경우, '좋은 편(15.3%)', '보통(76.4%)', '나쁜 편(8.3%)' 이고, 여아는 '좋은 편(15.7%)', '보통(74.3%)', '나쁜 편(10.0%)'로 나타났다. 조사대상자들의 부정적인 식행동 점수는 남아의 경우, '나쁜 식행동이 적은 편(23.6%)', '보통(76.4%)', '나쁜 식행동이 많은 편(0.0%)'이고, 여아는 '나쁜 식행동이 적은 편(21.4%)', '보통(75.7%)', '나쁜 식행동이 많은 편(2.9%)'으로 나타났다. 조사대상자들의 식행동 총점은 '보통'으로 평가되었고, 남녀간의 유의적인(p<0.001) 차이를 나타내었다. 긍정적인 식행동과 식습관 간에는 유의적인 (p<0.05, p<0.001) 양의 상잔성이 있었고, 부정적인 식행동과 식습관 간에는 유의적인 ((p<0.05, p<0.001) 응의 상관성이 있었다 본 연구의 결과는 학령전 어린이에게 적용할 메뉴를 계획하는 프로그램과 영양교육의 자료로 이용될 수 있을 것이다. The nutritional status of 142 preschool children in Ulsan area was surveyed. A survey was conducted on parents using lluestionnaires including general characteristics, subjective symptoms, flood habit and eating behavior The children involved in this study were 72 boys and 70 girls, aged 2 to 7 years old. 48.6% in boys and 42.9% in girls were on'regular'meal times, The food habit score of the subjects was divided into Poor(27.8%), fair(58.3%) and good(13.9%) in boys, poor(25.7%), fair(62.9%) and good(11.4%) in girls. The positive eating behavior score of the subjects was divided into poor(8.3%), fair(76.4%) and good(15.3%) in boys, poor(10.0%), fair(74.3%) and good(15.7%) in girls. The negative eating behavior score of the subjects was divided into poor(0.0%), fair(76.4%) and good(23.6%) in boys, poor(2.9%), fair(75.7%) and good(21.4%) in girls. The relation of the flood habit and positive eating behavior is significantly(p<0.05, p<0.001) positive correlation and the relation of the food habit and negative eating behavior is significantly(p<0.05, p<0.001) negative correlation. The results of this study indicate that nutrition education and menu planning program should be applied to preschool children.

이동형 생체계측을 위한 임베디드 컴퓨팅

홍주현,진계환,박경순,조명찬,박길선,차은종,이태수 충북대학교 의과대학 충북대학교 의학연구소 2003 忠北醫大學術誌 Vol.13 No.2

연구목적: 초소형 정밀 기계 기술로 제작된 2차원 가속도 센서와 916 MH2 단거리 고주파 데이터 통신 기술을 응용하여 인체의 운동상태를 자동으로 감지하고 분류하는 기법을 제안 하고자 하였다. 재료 및 방법: 인체의 신호를 획득하기 위하여 미국 버클리대에서 제작한 무선 센서를 등 산용 조끼의 전면상단에 부착해서, 대상자의 흉골 부위에 위치하도록 하고, 앉은 상태에서 일어서거나 눕거나 하는 동작 및 그 역동작이 일어날 때, 가속도 센서에서 감지되는 4가지 종류의 파형 현화에 해당되는 데이터를 무선센서 네트웍을 통해 획득하였다. 결과: 획득한 신호를 주성분분석(Principal Component Analysis)과 지원벡터머신(Support Vector Machine)을 사용하여, 2차주성분까지를 도표화하고 클러스터링 함으로써, 4개의 영역으로 분할하는 것이 가능함을 말 수 있었다 결론: 소형 센서들이 작동되는 임베디드 컴퓨팅 환경에서 일상생활 중에 발생하는 인체의 4가지 동작을 자동으로 감지하고 분류하는 것이 가능함을 보였다. Purpose: New monitoring and classifying method of human motion contort was pro- posed by using 2-axial MEMS accelerometer and 916 MHz short-range data communica-tion technology. Materials and Methods: The wireless sensor of MICA mote was attached to a woman mountain vest and located close to the subject's sternum. During four types of sub-ject's motion, that is, sit-to-stand, stand-to-sit, sit-to-tying, and tying-to-sit, waveform changes of the accelerometer data were acquired by wireless sensor network. Results: The acquired signal was analyzed by Principal Component Analysis(PCA) and Support Vector Machine(SVM) technique. By clustering the first and second principal components, four regions corresponding to the four types of motion, were clearly segment-ed. Conclusion: Human motion context during daily life could be monitored and classified automatically by using small sensors in embedded computing environment

초음파 공명 분광법(RUS)을 이용한 SiC 입자강화 Al 기지복합재료의 탄성계수 해석

홍순형,주영상,정용무,정현규 韓國非破壞檢査學會 1999 한국비파괴검사학회지 Vol.19 No.3

SiC 입자강화 2124Al 금속복합재료의 강화재 부피분율에 따른 탄성 stiffness를 초음파 공명 스펙트로스코피(resonant ultrasound spectroscopy: RUS) 방법을 이용하여 측정하였다. RUS 방법은 한 개의 소형 시편으로 9개의 독립변수를 가진 사방정계(orthorhombic) 탄성계수를 간단한 실험으로 측정가능함을 보여주었다. SiC 강화재 부피분율 변화에 따른 탄성계수를 측정하였는데 이 경우 초기 추정 탄성계수를 구하기 위해서 부피분율에 따른 미세조직 사진으로부터 강화재의 형상(aspect ratio)과 방향을 고려한 유효 aspect ratio 개념을 도입하였고, Mori-Tanaka 이론식에 의한 계산결과를 이용하였다. 이로부터 계산된 공진주파수와 RUS의 측정 공진주파수 사이를 최소화함으로 정확한 탄성계수를 측정하였다. 측정된 stiffnesses로부터 공학적 탄성계수인 Young's modulus를 계산하였으며, 계산된 Young's modulus와 압출방향으로 인장시험한 Young's modulus를 비교분석하였다. SiC 입자의 부피분율이 증가함에 따라 탄성계수가 증가함을 나타내었고, 탄성 stiffness의 거동은 강화재가 많이 첨가될수록 횡등방성(transversely isotropic) 이 강하게 나타났으며 이것은 압출공정에 의해 강화재 입자의 방향성 재배열에 기인한다. 한편 일정크기 시편에 있어서 기본 공진주파수가 강화재 부피분율에 따라 고주파수 영역으로 이동하는 현상이 관찰되었으며, 이로 부터 비파괴적으로 강화재 부피분율을 예측할 수 있는 가능성을 제시하였다. The dynamic elastic properties of metal matrix composites were investigated by resonant ultrasound spectroscopy(RUS). The composites used in this study consisted of 2124 aluminum alloy reinforced with different concentrations of SiC particles. RUS can determine the nine independent elastic stiffness(C )for the orthorhombic symmetry on a small specimen simultaneously. The elastic constants were determined as a function of the volume fraction. A concept of effective aspect ratio, which combine the aspect ratio and the orientation of reinforcement, was used to calculate the initial moduli from Mori-Tanaka theory for the input of RUS minimization code. Young's moduli can be obtained from the measured stiffnesses. The results show that the elastic stiffness increases with increment of the particle content. The behavior of elastic stiffness indicates that the particle redistribution induced by the extrusion process enlarges the transversely isotropic symmetry as the fraction of reinforced particles increase. This relationship could be used for determination of the volume fractions of reinforcement as a potential tool of nondestructive material characterization.

핵산 내성세균 Micrococcus sp. BCNU121의 생리적 특성에 관한 연구

이현채,주우홍 昌原大學校 基礎科學硏究所 1997 基礎科學硏究所論文集 Vol.9 No.-

The strain BCNU121 among the isolated strains is hexane-tolerant Gram-positive coccus. This strain showed catalase positive, oxidase negative and arginine dihydrolase positive reaction, and formed the cluster of cells. Also this strain hydrolyzed gelatin and grew at nutrient agar with 7.5% NaCl. On the basis of the above date, this strain BCNU121 have been identified as Micrococcus sp. The optimal condition for growth was determined.

기존의 곡면 분할 알고리듬 비교 연구

李玄燦,朱柄俊,洪忠成 弘益大學校 科學技術硏究所 2001 科學技術硏究論文集 Vol.12 No.-

Recently, designing and visualizing 3D objects become getting more important issues in related industrial fields due to new trends such as Virtual Design using CAD(Computer-Aided Design) systems and high-speeded internet. In this paper, we compare the existing surface subdivision algorithms. Subdivision algorithm is a 3D modeling technique that generates a very smooth surface through many times of refinement processes that split polygons of control mesh into several smaller polygons. We examine the methods of calculating new vertices and topological algorithms of three existing subdivision algorithms, Doo-Sabin, Catmull-Clark, and Loop subdivision scheme in detail, and compare them to find the differences, merits and demerits. In calculating new vertices, Doo-Sabin scheme is simpler than Catmull-Clark and Loop schemes. But in topological algorithm, Catmull-Clark and Loop schemes are simpler than Doo-Sabin scheme.

복합문화공간의 색채계획 : 수원시 영통구 상업지구를 중심으로

서주환,여화선,최선주,박선영,김옥경,승지현,김홍균 경희대학교 부설 디자인연구원 2007 예술· 디자인학연구 Vol.10 No.1

The recognition on leisure living which have been enjoyed by prestige level from popular persons is now widely spreaded in modern capitalism society and change of the leisure living influenced very much to the society and Industry. The 5 day work per week system expanded to the school and contemporary leisure living of the people is recognised as one culture with various contents. This change of leisure living made a recognition on the need for a space for leisure culture contents, which related to a creation of Complex-culture facility to contain various type of multiple leisure culture. The Complex-culture facility is mainly focused on the entertainment space with increased leisure living, which is consist of important element of the Complex-culture facility as performance space, exhibition, sports and shopping space to construct performance hall, theater, exhibition room, sports center, shopping mall, leisure space and plaza. This study, therefore, will Investigate on the function and value of color, and review on the cases of Complex-cultural facility and then choose a space of cultural element lack. It will recompose in Complex-cultural facility.

GIS를 활용한 효율적인 농촌경관관리구역 설정에 관한 연구

서주환,최현상,변성진,안재홍,양희승 경희대학교 부설 디자인연구원 2002 예술· 디자인학연구 Vol.5 No.1

Land use and social, cultural and environmental safety, which are adapted to natural environment, based on the traditional agricultural society, are on the verge of collapse because our rural community was developing around economy value. Rural landscape has not been certified compared with urban and natural landscape in importance by the standard of functional aspect, economic value and use demand, so cultural, historical, traditional and agricultural landscape native to rural community are not evaluated exactly. The Purpose of the study is a efficient plan and management for a essential rural landscape. Therefore We Make out a landscape diagram for efficient landscape plan and management and Selection of the Rural Landscape Management Area.

樹種의 差異가 樹冠通過雨, 樹幹流의 水質에 미치는 影響

陳鉉五,金英彩,金洪律,朱榮特,吳鍾敏 慶熙大學校 1997 論文集 Vol.26 No.-

The chemistry of precipitation, throughfall and stemflow throughout different components of forest stands were compared to broadleaved and coniferous forest stands common in the central part of Korea. Included this report is information on the distribution and chemistry of rainwater as it affects the characteristics of nutrient cycled as throughfall and stemflow in different stands. In all species. dissolved element concentrations showed increase precipitation < throughfall < stemflow, especially, Mg, K and SO_4 of throughfall and stemflow of coniferous forest were net increase in passing through the canopy, branch and bark. Both precipitaion and throughfall concentrations showed negative relation to on the other hand, pH of throughfall was positive relation to precipitation amounts. In coniferous stand, stemflow of low pH probably acts to accelerate the nutrient cycling of soil ecosystem

전주시 도시경관의 변화과정에 관한 연구

서주환,김홍균,승지현,김옥경,최선주,박선영 경희대학교 부설 디자인연구원 2007 예술· 디자인학연구 Vol.10 No.1

The object of this research is about how jeon-ju, which is one of the historical cities is changed according to the flow of generation. In this analysis, product and enemy factors will be studied. The inner and urban landscape of the generations of the 1860s, 1930s and modern times will be surveyed and compared in the context to grasp those factors. Analysis will be applied to this modern historical city by theorizing how these factors will effect future development. Today's modern landscape will be compared and analyzed based on the effects and abstractions of the recent landscape immediately preceeding current times. Modern conditions will again be placed in context, by suggesting future potential developments. In the result, first, considering present conditions of the landscape which set the stage for the Japanese invasion, an evaluation will be made on the best course of action for future development of street landscape. Second, the question of preserving the history and culture of this rich and ancient city through network of modern street landscape naturally will be posed. Finally, an analysis of the difference between the old and modern landscape will be evaluated, in preparation for suggestions of future development.