• 제목/요약/키워드: Height and location

검색결과 677건 처리시간 0.025초

신장도(腎臟圖)의 형태요소와 그 변이(變異)에 대한 연구 (Factors of Variation in Diagrams and Location of Kidney)

  • 조학준
    • 한국의사학회지
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    • 제31권1호
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    • pp.23-42
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    • 2018
  • This study examines the variation in diagrams of the kidney, and the effects on location of the Life Gate as a result. My study analyzes diagrams of kidney form and location, such as appearance, the vertebral spine, ShenXi, and "Life Gate", and also explores the causes for such variations. The kidney is commonly described as having the shape of a bean, which throughout medical history has showed almost no variation. The spine was initially described with a total of 21 vertebrae, and later with a range of 19-25 vertebrae. Regarding the height of kidney in relationship to the spine, it was initially described as beginning at the 14th vertebrae, and later changed to the 15th or 17th vertebrae. However, there have been no changes in the perception of the height of kidney. Initially, the location of the Life Gate could not be identified. Three different suggestions of its location were found throughout historical literature, including: (1) at or within the right kidney; (2) between two kidneys; and (3) between 14th-15th spine. There were also variations noted in the process of copying diagrams of kidney in many books not only because the work of copying was not precise, but also because each medical practitioner had a different interpretation of the kidney's form and function in Traditional Korean and Chinese Medicine. It appears that some practitioners may have been influenced by their understandings of theory of Life Gate.

프레임의 강성을 고려한 최적 아웃리거 위치의 제안 (Proposal for Optimal Outrigger Location Considering Stiffness of Frame)

  • 김형기
    • 대한건축학회논문집:구조계
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    • 제35권9호
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    • pp.183-190
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    • 2019
  • This paper intended to propose the optimal outrigger position in tall building. For this purpose, a schematic structure design of 70 stories building was accomplished by using MIDAS-Gen. In this analysis research, the key variables were the stiffness of outrigger, the stiffness of frame, the stiffness of shear wall, the stiffness of exterior column connected in outrigger and the outrigger location in height. With the intention of looking for the optimum location of outrigger system in high-rise building, we investigated the lateral displacement in top floor. The study proposed the new method to predict the optimal location of outrigger system considering the frame stiffness. And it is verified that the paper results can be helpful in providing the important engineering materials for finding out the optimum outrigger position in tall building.

Evaluation of the Ostium in Anomalous Origin of the Right Coronary Artery with an Interarterial Course Using Dynamic Cardiac CT and Implications of Ostial Findings

  • Jin-Young Kim;Yoo Jin Hong;Kyunghwa Han;Suji Lee;Young Jin Kim;Byoung Wook Choi;Hye-Jeong Lee
    • Korean Journal of Radiology
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    • 제23권2호
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    • pp.172-179
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    • 2022
  • Objective: We aimed to evaluate the ostium of right coronary artery of anomalous origin from the left coronary sinus (AORL) with an interarterial course throughout the cardiac cycle on CT and analyze the clinical significance of the ostial findings. Materials and Methods: From January 2011 to December 2015, 68 patients (41 male, 57.3 ± 12.1 years) with AORL with an interarterial course and retrospective cardiac CT data were included. AORL was classified as high or low ostial location based on the pulmonary annulus in the diastolic and systolic phases on cardiac CT. In addition, the height, width, height/width ratio, area, and angle of the ostium were measured in both cardiac phases. After cardiac CT, patients were followed until December 31, 2020 for major adverse cardiac events (MACE). Clinical and CT characteristics associated with MACE were explored using Cox regression analysis. Results: During a median follow-up period of 2071 days (interquartile range, 1180.5-2747.3 days), 13 patients experienced MACE (19.1%, 13/68). Seven (10.3%, 7/68) had the ostial location change from high in the diastolic phase to low in the systolic phase. In the univariable analysis, younger age (hazard ratio [HR] = 0.918, p < 0.001), high ostial location (HR = 4.008, p = 0.036), larger height/width ratio (HR = 5.621, p = 0.049), and smaller ostial angle (HR = 0.846, p = 0.048) in the systolic phase were significant predictors of MACE. In multivariable cox regression analysis, younger age (adjusted HR = 0.917, p = 0.002) and high ostial location in the systolic phase (adjusted HR = 4.345, p = 0.026) were independent predictors of MACE. Conclusion: The ostial location of AORL with an interarterial course can change during the cardiac cycle, and high ostial location in the systolic phase was an independent predictor of MACE.

Optimization of lateral resisting system of framed tubes combined with outrigger and belt truss

  • Mohammadnejad, Mehrdad;Kazemi, Hasan Haji
    • Advances in Computational Design
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    • 제7권1호
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    • pp.19-35
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    • 2022
  • In this paper, the optimum location of the belt truss-outrigger for a combined system of framed tube, shear core and outrigger-belt truss is calculated. The optimum location is determined by maximization of the first natural frequency. The framed tube is modeled using a non-prismatic cantilever beam with hollow box cross section. The governing differential equation is solved using the weak form integral equations and the natural frequencies of the structure are calculated. The graphs are introduced for quick calculation of the first natural frequency. The location of the belt truss-outrigger that maximizes the first natural frequency of the structure is introduced as an optimum location. The structure is modeled using SAP-2000 finite elements software. In the modelling, the location of the belt truss-outrigger is changed along the height of the structure. With various locations of the outrigger, the lateral deflection of the all stories and axial force in the columns of the outer tube are calculated. The analysis is repeated by locating the outrigger-belt truss at the optimum location. The analysis results are compared and effect of the optimum location on the lateral deflection and the shear lag phenomena are investigated.

영남지방 4대 전통취락의 지형적 입지 특성 (The Geomorphic Characteristics of the Location of the 4 Traditional Settlements in Youngnam District)

  • 최희만
    • 한국지역지리학회지
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    • 제9권4호
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    • pp.413-424
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    • 2003
  • 이 연구의 목적은 한국의 영남지방에 있는 4개 전통취락의 입지를 지형적인 관점에서 해석하는 것이다. 이를 위해 GIS 기법을 이용하여 취락의 사면 경사도, 사면향, 하천과의 관계를 계량적으로 분석하였다. 특히 전통취락의 입지에 담겨있는 풍수적 사고와 택리지의 복거론적 지형인식이 현대의 지형분석적 입장에서는 어떤 의미를 가지며 그것이 시사하는 점이 무엇인지를 검토해 보았다. 그 결과 유곡은 계곡분지의 산록부 천전은 구룡지 말단부에 입지한다. 하회는 곡류하천 범람원의 볼록한 자연제방에 입지하고, 양동은 구릉지에 입지하고 있다. 가옥들은 대체로 남향과 남동향, 남서향이 많지만, 하회는 모든 사면으로 분포하는 것이 특징이다. 또한 4지역은 하상비고 $10{\sim}20m$ 범위에 입지하는데, 이 하상비고는 수해에 대비한 안전고도임을 알 수 있다. 이처럼 과거 풍수적 관점에서 명당이라 지칭해 온 영남지방 4대 전통취락의 입지는 현대의 주거입지론적 측면에서도 우수한 지형조건을 갖추고 있는 것으로 판단된다.

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폭발에 의한 건축물 붕괴 시 매몰공동 위치 예측에 관한 수치해석 사례 연구 (Numerical Simulation for Prediction of Existing Cavity Location on Explosion-Induced Building Collapse)

  • 정자혜;박훈;김광염;신휴성
    • 한국안전학회지
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    • 제30권6호
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    • pp.94-101
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    • 2015
  • When a severe disaster such as a building collapse occurs, a first priority for rapid rescue is to find a location where people are highly expected to be buried but alive. It is, however, very difficult to correctly designate the location of such cavities by conventional geophysical survey due to a pile of debris of building members. In this study, location of possible lifeguard cavities were evaluated through a series of simulations of building collapse by explosion depending on the height of the building, a structure of basement floor and a location of explosion. Three types of building structure: five-story, ten-story and fifteen-story were prepared as a model for the simulation. As a results, in the case of low building, only basement floor partially collapsed. On the other hand, in the case of high building, a collapsed range on the inside of the building increased and lifeguard spaces were formed only in the lateral side or corner of the building. In addition, when a wall exists in the basement floor, the possibility that cavities could be formed increased compared to the cases without wall. However, for the fifteen-story building case, no possible lifeguard cavity was found. It is noted that for a high rise building, the height of building more affect forming of safeguard cavity than the structure of the basement floor.

스마트폰을 이용한 물체의 3차원 위치 추정 기법 (A Three Dimensional Object Localization Scheme using A Smartphone)

  • 권오흠;정명환;송하주
    • 한국멀티미디어학회논문지
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    • 제20권8호
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    • pp.1200-1207
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    • 2017
  • Sensors in a smartphone can be used to measure various physical quantities. In this paper, we propose an object localization scheme in a three dimenstional using a smart phone. The proposed scheme estimates the location of an object by observing it from several different points. The direction to the target object and the locations of the observation points are collected at each observation point using the location sensor and the orientation sensor in the smartphone. Based on these observations, the proposed scheme derives three dimensional line of sight vectors and estimates the location of the target object that minimizes the estimation error. We implemented the proposed scheme on an Android smartphone and tested its performance by estimating the height of a building and characteristics of the proposed approach.

스크류 드라이버 작업장의 인간공학적 분석에 관한 연구 (Ergonomic Analysis of Screw Driver Workstation)

  • 박희석;국정훈
    • 대한인간공학회:학술대회논문집
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    • 대한인간공학회 1995년도 춘계학술대회논문집
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    • pp.165-172
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    • 1995
  • Twenty six subject drove screws with a screw driver into thick wooden sheet at three vertical and horizontal locations. Subjects drive screws for 3 minutes at each location and they assessed the conditon using the psychophysical scale. An ANOVA showed that only vertical location was a signicant factor in determining the pain ratings of various body parts. Driving screws at elbow height on the vertical surface ans with the lower arm close to the body on the horizontal surface were the work locations with the smallest ratings of perceived pain and discomfort. Wearing gloves had significant effects on reducing the pain of the hand.

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체형을 고려한 맞춤형 넥타이 개발에 관한 연구(제1보) -넥타이 길이를 중심으로- (Customized Necktie Design According to Man's Body Characteristics (part I) -Focused on the Length of Necktie-)

  • 박은경;홍지원
    • 한국의류학회지
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    • 제27권11호
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    • pp.1198-1207
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    • 2003
  • The purpose of this study was to develop customized necktie design according to Korean adult male's body characteristics. For this purpose, experimentations of visual sensory evaluation on visual stimuli which show a man's wearing various neckties were carried out. The subjects were students(n=130) majoring in fashion and design related area and experts(n=6). The data were analyzed by ANOVA, duncan test, pearson's correlation coefficient, cross tabulation using spss pc/sup +/ program. Also statistic of Korea adult men's body measurements(1997) were analyzed and used to decide appropriate necktie length according to the customer's various height. The results were as follows: First, there were significant difference in visual sensibility on the stimuli showing 1) relative location of belt and necktie, 2) neckties with various length using golden ratio to the experimental model's height. Therefore, the need of producing neckties with different length according to customer's various height were verified. Second, neckties with three different length(140cm, 145cm, 151cm) were suggested for the groups of 160cm-height, 170cm-height, 180cm-height according to Korean adult male's body characteristics and aspect of production.

해안구조물 전면의 Stem Wave특성에 관한 연구 (A Study on the Characteristics of the Stem Wave in front of the Coastal Structure)

  • 박효봉;윤한삼;류청로
    • 한국해양공학회지
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    • 제17권5호
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    • pp.25-31
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    • 2003
  • Numerical experiments have been conducted using the nonlinear combined refraction-diffraction model, in order to analyze the generation characteristics of stem wave, which is formed by the interaction between vertical structure and the oblique incident waves. The results of stem wave are discussed through the stem wave height distribution along/normal vertical structure, under the wide range of incident wave conditions-wave heights, periods, depths, and angles. Under the same wave height and period, the larger the incident wave angle, the higher the stem wave heights. According to the results of wave height distribution, in front of vertical structure, the maximum of stern wave heights occurs in the location bordering the vertical wall. Furthermore, the most significant result is that stem waves occur under the incident angles between $0^{\circ}\;and\;30^{\circ}$, and the stem wave height ratio has the maximum value, which is approximately 1.85 times the incident wave height when the incident wave angle becomes $23^{\circ}$.