• 제목/요약/키워드: Inner change

검색결과 854건 처리시간 0.034초

기도에 대한 EBCT 영상에서의 내벽 윤곽선 자동검출 (The Automatic Detection of Inner Boundary on EBCT Images for Airway)

  • 김명남;조진호
    • 한국멀티미디어학회논문지
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    • 제6권6호
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    • pp.991-999
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    • 2003
  • 본 논문에서는 호흡에 의하여 변화하는 기도 내부 영역의 형태학적인 정보를 반영할 수 있는 EBCT를 이용한 영상 획득 기법과 이 기법을 이용하여 획득한 단층 영상으로부터 기도 내벽의 윤곽선을 자동적으로 검출하는 방법을 제안하였다. 기도의 각 준위에 대한 영상데이터들을 적용한 컴퓨터 시뮬레이션 결과들을 통하여 제안한 방법이 효과적으로 기도의 윤곽선을 검출함을 확인하였으며 시간적 변화에 따른 기도 내벽의 단면적인 변화를 볼 수 있었다. 따라서, 제안한 방법이 임상에서의 정량적 평가에 활용할 수 있을 것으로 판단된다.

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청주 도심 옛마을의 안길과 중심공간의 특성 변화 (Transformation Characteristics of Inner Road and Communal Space in Old Settlements of Downtown Cheong Ju)

  • 채수민;변경화;김태영
    • 한국농촌건축학회논문집
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    • 제14권3호
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    • pp.93-100
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    • 2012
  • The purpose of this study is to examine the change of inner roads responding to the street system and to examine the how to influence to communal space of village focused on 22 existing old settlements in downtown Cheong Ju. This study examined the types of inner roads based on advanced research. For the research on communal space, interviews with the residents living in the village were conducted to figure out the location and function of it. Also, it was analyzed comparatively with the present communal space. The results are as followings: the width of an inner road has a effect to function of an inner road when flow of an inner road has kept. The function of inner road has been kept when the width of an inner road expanded as pedestrians should be given priority to vehicular traffic. However, the function of inner roads has been changed and the community has been separated when the width of inner roads expanded for vehicular. Because the location of the communal space in the village is affected by the change of the inner road, when the inner road is maintained, the location of the communal space is also maintained, but when the inner road is changed, the location of the communal space is also changed. The communal spaces such as public wells and wash spaces have lost and they have been substituted with senior citizen centers or community centers.

柴胡淸肝湯加減方으로 호전된 사타구니, 대퇴내측 습진 환자 4례 증례 보고 (Four Cases of the Patients with the Groin, Inner thigh Eczema Treated with Sihochunggan-tang gagambang)

  • 조재명;고영협;박선정
    • 한방안이비인후피부과학회지
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    • 제28권3호
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    • pp.161-172
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    • 2015
  • Objective: The purpose of this study is to report the effectiveness of Sihochunggan-tang gagambang in the four patients with eczema ongroin, inner thigh.Methods: This case study was conducted for four groin, inner thigh eczema patients who have visited Korean Medicine Clinic. Sihochunggan-tang gagambang was prescribed to all four patients and evaluated the symptom change through photographs and two assessment methods. The assessment methods are Atopic Dermatitis Severity Index(ADSI) and Visual Analogue Scale(VAS). ADSI was used to evaluate the objective symptom change and VAS was used to evaluate the subjective symptom change.Results & Conclusion: The ADSI and VAS were decreased compared to the first in all four patients in our study. And most symptoms of four patients were improved. As a result of examining ADSI, VAS scores and photographs, Sihochunggan-tang gagambang can be effective on the groin, inner thigh eczema in four cases in our study.

청주 구도심 지역의 가로·가구·필지체계의 형성과 변천 (Formation and Change of Road·Block·Lot System of Old Inner Cheongju City)

  • 원세용;김태영
    • 한국농촌건축학회논문집
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    • 제5권2호
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    • pp.10-19
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    • 2003
  • The purpose of this study was to analyze the formation and change of road-block-lot of the old inner city in cheongju The result of this study are as follows; (I)Among others a system roads of in around the old castle in cheongju city is most of feature north and south direction of road. Lot system is organic relations of north and south direction of road. Therefore, urban tissue in around the old castle in cheongju city is established order road system keep on the change of expansion urban tissue. (2) Block type classified into non-division, 2division and over 3division. (3) The square block remains mostly in Cheongju old castle, two-division block was around south of castle. And block of the grid-form street system divided into over 3 division. Through the guideline about characteristic of block type, residential area should be developed as a characteristics area in the urban area.

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사이드 채널형 링블로워의 임펠러 내부 유로에 따른 성능변화 분석 (Analysis of Performance Characteristics by Inner Flow Path of Side Channel Type Ring Blower)

  • 이경용;최영석;정경호;박운진
    • 한국유체기계학회 논문집
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    • 제15권4호
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    • pp.67-71
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    • 2012
  • This study analyzed performance changes by an inner flow path of impeller groove for side channel type ring blower using CFD. Two models have the same side channel and clearance while one has an inner flow path and the other doesn't. To analyze the performance change of a ring blower, overall performance and local flow field were analyzed. For the overall performance, pressure increase and impeller torque were checked under the design flow condition. Under the design flow condition, pressure increase was greater for the model with the inner flow path. The model with the inner flow path showed improved efficiency because the area subject to torque decreased due to the creation of inner flow path. To analyze local flow field, a section was created from the representative location of each impeller groove toward the direction of radius. Inner channel pressure distribution depending on the rotation direction shows that the model with the inner flow path has pressure equilibrium of working fluid through the inner flow path. Velocity distribution of inside impeller groove shows that flow field was coupled and appeared to form an inner wall where the flow field was stabilized.

동심원관 환상공간내의 완전히 발달된 층류유동에서 물의 결빙현상에 대한 해석 (Analysis of ice-formation phenomena for fully developed laminar water flow in concentric circular-tube annuli)

  • 서정세;노승탁
    • 대한기계학회논문집B
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    • 제21권11호
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    • pp.1552-1561
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    • 1997
  • In this numerical study, it is investigated for the ice-formation phenomena for water flow in a concentric tube. The freezing layers of ice in both the inner and outer wall of a concentric tube are simultaneously considered. In the solution strategy, the complete set of governing equations in both the solid and liquid regions are resolved. Numerical results are obtained by varying the inner/outer wall temperatures and Reynolds number. The results show that the inner/outer wall temperatures have the great effect on the thickness of the solidification layer thereof. The shapes of ice layer in both the inner and outer wall can be expressed as a function of inverse Graetz number. As the wall temperature in inner or outer tube decreases, the heat transfer coefficients in both inner and outer ice layer surfaces increase absolutely.

매끄러운 하상위 난류의 내부 영역 유속 분포 공식 (An Inner Region Velocity-Profile Formula of Turbulent Flows on Smooth Bed)

  • 류권규;윤병만
    • 한국수자원학회논문집
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    • 제39권9호
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    • pp.737-744
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    • 2006
  • 난류의 내부 영역의 유속은 단순한 공식으로 표현하기 매우 어려운 형태를 가지고 있다. 이 속도 분포를 기술하는 여러 가지 공식들이 제안된 바 있지만, 모든 공식들은 많은 항들을 가지거나 적분형 또는 음함수꼴을 가지고 있다. 이것은 이 식들이 적용하기 힘들거나, 매개 변수들을 추정하기 어렵다는 것을 의미한다. 이 연구에서는 매끄러운 바닥 위를 흐르는 난류 내부 영역의 유속 분포를 표현할 수 있는 간단한 형태의 새로운 공식을 제안하였다. 이 공식은 전통적인 대수 법칙에 감쇄 함수를 곱한 형태이다. 단 하나의 추가적인 매개 변수를 도입하여, 전체 내부 영역의 유속 분포를 적절하게 표현할 수 있었다. 이 공식은 벽법칙이 성립하는 바닥 근처의 유속과 대수 법칙이 성립되는 중복 영역의 유속 분포까지를 적절하게 나타낼 수 있다. 또한, 추가된 매개 변수인 감쇄 계수는 쉽게 추정할 수 있다. 이 변수는 Reynolds 수의 변화에 민감하지 않으며, 공식에 의하여 계산된 유속 분포도 또한 이 매개 변수의 변화에 대해서 민감하지 않다.

하구언 수문작동으로 인한 금강 하구역의 물리적 환경변화: I. 평균해수면과 조석 (Physical Environment Changes in the Keum River Estuary by the Dyke Gate Operation: I. Mean Sea Level and Tide)

  • 권효근;이상호
    • 한국해양학회지:바다
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    • 제4권2호
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    • pp.93-100
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    • 1999
  • 금강 하구역의 해수면 변화에 미치는 하구언 수문 작동의 영향을 알아보기 위하여 군산 내항과 외항의 조석자료를 분석하여 비조석 해수면, 평균해수면 및 주요분조의 조화상수를 구하였다. 비조석 및 평균해수면은 하구언 수문 작동이후 내항과 외항에서 낮아졌고 특히 내항에서 급격한 비조석 해수면의 하강을 보였다. 이러한 비조석 해수면의 감소로 내항과 외항사이의 평균해수면 구배가 변화되었으며 이는 주로 하구언으로부터 담수유출량이 감소하여 발생한 것으로 해석되었다. $M_2$$S_2$ 분조의 진폭은 내항에서 수분작용 후 급격히 증가하였고, 위상은 다소 감소하였다. $O_1$$K_1$ 분조의 위상과 진폭은 변화가 미약하였다 이러한 반일주조 진폭의 큰 변화는 입사파와 하구언에서 반사된 파의 중첩에 의한 것으로 해석된다.

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격음노출 후 기니픽 달팽이관 내유모세포 부동섬모에 관한 SEM(전자투사식현미경) 관측 (SEM Observation for the Damage of Inner Hair Cell Stereocilia of Guinea Pig Cochlea after Loud Tone Exposure)

  • Jarng Soon Suck
    • The Journal of the Acoustical Society of Korea
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    • 제24권1E호
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    • pp.1-6
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    • 2005
  • The inner hair cell stereocilia of the guinea pig cochlea was examined under a scanning electron microscope (SEM) after loud tone exposure onto the ear drum of the animal. Before and after guinea pigs were exposed to intensive and continuous tone such as 106 dB SPL in intensity, the functioning of the cochlea was monitored by N1-N2 audiograms. The structural damage of the stereocilia of inner hair cells (IHCs) and outer hair cells (OHCs) was examined using the SEM in x 1500 magnification. The comparison between the functional change of the cochlea and the structural damage of the IHC stereocilia is done by means of photographic observation. It can be shown that the functional change might be related to the structural damage of the IHC stereocilia after intensive acoustic trauma.

표준전동차 차내소음특성 예측 연구 (Study on the Prediction of Inner Noise Characteristics in Standardization EMU)

  • 박준서;한기흥;김정태
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2000년도 추계학술대회 논문집
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    • pp.133-141
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    • 2000
  • Standardization EMU in comparison with the existing EMU has been largely changed the material and section profile of the structure as the Aluminium made. This study is analytically predicted the influence of inner noise in tunnel running when the above change is made.

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