• 제목/요약/키워드: Factor of location

검색결과 1,454건 처리시간 0.04초

Comparison between Simulations and Observations Focused on Upflow Area in Active Region

  • 이환희;;안준모;강지혜
    • 천문학회보
    • /
    • 제37권2호
    • /
    • pp.131.1-131.1
    • /
    • 2012
  • We use three-dimensional magnetohydrodynamic (MHD) simulations of flux emergence from solar subsurface to corona. In our previous work, we reported the relation between magnetic-field configuration and the flux expansion factor. Following these results, we investigate where an upflow is generated in an active region and how its location is related to the flux expansion factor. We also derive physical quantities of a real active region from observation data provided by Nobeyama Radioheliograph (NoRH), X-Ray Telescope (XRT), and Extreme Ultraviolet Imaging Spectrometer (EIS) onboard Hinode. These physical quantities are plasma density, temperature and flow. By comparing the simulation result and observational one, we will discuss the properties of the location producing a solar wind.

  • PDF

유한요소해에 기초한 물성평가 압입이론 (An Indentation Theory Based on FEA Solutions for Property Evaluation)

  • 이형일;이진행
    • 대한기계학회논문집A
    • /
    • 제25권11호
    • /
    • pp.1685-1696
    • /
    • 2001
  • A novel indentation theory is proposed by examining the data from the incremental plasticity theory based finite element analyses. First the optimal data acquisition location is selected, where the strain gradient is the least and the effect of friction is negligible. This data acquisition point increases the strain range by a factor of five. Numerical regressions of obtained data exhibit that strain hardening exponent and yield strain are the two main parameters which govern the subindenter deformation characteristics. The new indentation theory successfully provides the stress-strain curve with an average error less than 5%.

턱끝 성형술의 다양한 절골술식과 임상증례 (Various Genioplasty techniques and case presentations)

  • 최진영
    • 대한치과의사협회지
    • /
    • 제58권2호
    • /
    • pp.94-102
    • /
    • 2020
  • The form and location of chin is very important factor which determine the facial impression. Genioplasty is getting popular in order to improve the facial impression as facial beauty is considered as improvable factor. Through the geniplasty, chin can be moved to wanted location 3 dimensionally Genioplasty is relative simple but precise diagnosis and accurate surgical technique is very important for accurate and satisfying results. The form and shape of chin itself can be analysized and also must be evalulated in relation to the nose and lip and face. Author introduces the analysis of the chin, various surgical techniques of genioplasty and presents some cases.

  • PDF

증분소성이론에 준한 새 압입이론 (A Novel Indentation Theory Based on Incremental Plasticity Theory)

  • 이형일;이진행
    • 대한기계학회:학술대회논문집
    • /
    • 대한기계학회 2000년도 추계학술대회논문집A
    • /
    • pp.185-192
    • /
    • 2000
  • A novel indentation theory is proposed by examining the data from the incremental plasticity theory based finite element analyses. First the optimal data acquisition location is selected, where the strain gradient is the least and the effect of friction is negligible. This data acquisition point increases the strain range by a factor of five. Numerical regressions of obtained data exhibit that strain hardening exponent and yield strain are the two main parameters which govern the subindenter deformation characteristics. The new indentation theory successfully provides the stress-strain curve with an average error less than 3%.

  • PDF

생활폐기물소각장의 입지타당성 평가기법 (A Study of Assessment Method for Site Feasibility of Municipal Solid Waste Incineration)

  • 이무춘
    • 환경영향평가
    • /
    • 제6권2호
    • /
    • pp.123-135
    • /
    • 1997
  • The solid waste incineration facilities which cause environmental pollution. And those are some kind of loathing facilities for residents who do not want it. This problem could be solved by location feasibility study. The purpose of location feasibility study was to determine one site out of three candidate sites. This study which was done by the law, environmental and economic factor was considered for optimum site selection. Comparative evaluation among the candidate sites was done by ordinal scale and thus the optimum site was selected.

  • PDF

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

  • 박희석;국정훈
    • 대한인간공학회:학술대회논문집
    • /
    • 대한인간공학회 1995년도 춘계학술대회논문집
    • /
    • pp.165-172
    • /
    • 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.

  • PDF

환경지리정보시스템을 이용한 환경기초시설의 입지 결정요인 평가 (The Evaluation of Location Decision Factors of Environmental Foundation Facilities using Environmental Geographic Information System)

  • 조덕호;배민기
    • 한국지리정보학회지
    • /
    • 제11권1호
    • /
    • pp.45-57
    • /
    • 2008
  • 본 연구는 환경지리정보시스템을 활용한 활용하여 수질오염방지시설의 입지 결정요인을 분석하여 적정입지를 선정하는 방안을 제시하고자 한다. 이를 위해 수질오염총량제가 가장 먼저 실시된 낙동강 권역을 대상으로 환경지리정보시스템을 구축한 후 1) 수질오염방지시설의 처리용량에 영향을 미치는 오염원, 2) 수질오염방지시설의 입지와 오염원 배출량간의 관계를 분석하여 향후 어떤 오염방지시설을 어디에 입지시킬 것인가에 대한 정책대안을 제시하였다. 분석결과, 1) 수질오염방지시설의 처리용량 결정에 가장 큰 영향을 주는 오염원은 산업폐수발생량으로 판명되었으며, 2) 수질오염방지시설의 입지에 가장 큰 영향을 미치는 오염원은 산업체의 수로 나타났다. 이에 반해 인구수는 환경시설입지를 제한하는 효과가 있는 것으로 판명되었다. 또한, 경상북도 낙동강 중 상류 유역의 경우 주 오염원인 축산오염원에 대한 대처가 가장 미흡한 것으로 나타나 앞으로 축산오염원의 처리가 가장 시급한 것으로 판단된다. 본 연구는 장차 수질오염방지시설의 입지를 선정하는데 활용될 수 있을 것이며, 각 지역의 오염 특성에 따라 수질오염방지시설을 입지를 결정하는데 크게 기여할 수 있을 것으로 기대된다.

  • PDF

병성에 대한 소고 (Consideration of the Nature of Disease)

  • 조성연;이광규
    • 동의생리병리학회지
    • /
    • 제16권5호
    • /
    • pp.857-866
    • /
    • 2002
  • The main current in the pathology of oriental medicine is composed of etiologic factor, pathogenesis and clinical manifestation. The access of a disease is consist of etiologic factor, location of the lesion, nature of the disease and patient's condition. The nature of disease and the property of a drug are inseparably related to each other. The nature of disease is composed of six exogenous factors, cold and heat, deficiendy and excess, Yinyang and pain. Cold nature is divided into cold symptom due to excess and asthenia cold, fever nature is divided into sthenic fever and asthenic fever. According to the location, cold and heat can be subdivided into heat in the upper and cold in the lower, cold in the upper and heat in the lower, exterior cold and interior heat, exterior heat and interior cold. Yin syndrome characterized by hypofunction of the viscera is generated from insufficiency of yang-qi, excess of yin-coldness, deficiency of both qi and the blood.

입지유형과 주택경관 상호간의 선호인자에 관한 요인분석 연구 (A Study on the Factor Analysis of preferred elements in Types of Location and Housing landscape)

  • 조원석;김흥기;김정현
    • 한국농촌건축학회논문집
    • /
    • 제8권2호
    • /
    • pp.1-10
    • /
    • 2006
  • Recently the concerns of landscape resources were on the increase about the landscape of control and landscape design. In order to this, purpose of this paper is to develop architectural landscape design data of individual house in Gangwon Provinces. The type of landscape in Donghae seaside consist of three; Road, Mountain, Seaside. And the type of images about individual housing are three; Western, Traditional, Modern. This research is analyzed 18-simulation scenes, factor analysis is used for the SPSS. The results of this study are as follows. First, the housing of western style do not correspond with landscape of Road, but landscape of mountain and seaside were suitable to the western style. Second, mountain in Donghae seaside harmonizes with housing of traditional style. Third, even though the housing of modern style were marked low assessment in three landscape, we found out relation, modern housing was well-matched load landscape. Finally, to improve of landscape housing, which will serve as systematic approach with association of clients, constructors, designers and public service personnel.

  • PDF

실무적 적용 관점에서 신뢰성 분포의 유형화 모형의 고찰 (Review of Classification Models for Reliability Distributions from the Perspective of Practical Implementation)

  • 최성운
    • 대한안전경영과학회지
    • /
    • 제13권1호
    • /
    • pp.195-202
    • /
    • 2011
  • The study interprets each of three classification models based on Bath-Tub Failure Rate (BTFR), Extreme Value Distribution (EVD) and Conjugate Bayesian Distribution (CBD). The classification model based on BTFR is analyzed by three failure patterns of decreasing, constant, or increasing which utilize systematic management strategies for reliability of time. Distribution model based on BTFR is identified using individual factors for each of three corresponding cases. First, in case of using shape parameter, the distribution based on BTFR is analyzed with a factor of component or part number. In case of using scale parameter, the distribution model based on BTFR is analyzed with a factor of time precision. Meanwhile, in case of using location parameter, the distribution model based on BTFR is analyzed with a factor of guarantee time. The classification model based on EVD is assorted into long-tailed distribution, medium-tailed distribution, and short-tailed distribution by the length of right-tail in distribution, and depended on asymptotic reliability property which signifies skewness and kurtosis of distribution curve. Furthermore, the classification model based on CBD is relied upon conjugate distribution relations between prior function, likelihood function and posterior function for dimension reduction and easy tractability under the occasion of Bayesian posterior updating.