• Title/Summary/Keyword: Inner change

Search Result 856, Processing Time 0.045 seconds

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

  • 김명남;조진호
    • Journal of Korea Multimedia Society
    • /
    • v.6 no.6
    • /
    • pp.991-999
    • /
    • 2003
  • In this paper, we proposed image acquisition techniques that can reflect anatomical airway information lot breath change by EBCT Also, we proposed new method to detect automatically boundary of inner airway for acquired slice images using this image acquisition technology. We confirmed that new method detects boundary of inner airway effectively through computer simulation that apply image data about each slice position of airway. And, we could see change for cross section area of inner airway by time change. Therefore, we think that proposed method can utilize on quantitative analysis in clinical field.

  • PDF

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

  • Chae, Su-Min;Byun, Kyeong Hwa;Kim, Tai Young
    • Journal of the Korean Institute of Rural Architecture
    • /
    • v.14 no.3
    • /
    • pp.93-100
    • /
    • 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.

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

  • Cho, Jae-Myung;Ko, Young-Hyup;Park, Seon-Jeong
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
    • /
    • v.28 no.3
    • /
    • pp.161-172
    • /
    • 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.

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

  • Weon, Se-Yong;Kim, Tai-Young
    • Journal of the Korean Institute of Rural Architecture
    • /
    • v.5 no.2
    • /
    • pp.10-19
    • /
    • 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.

  • PDF

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

  • Lee, Kyoung-Yong;Choi, Young-Seok;Jeong, Kyung-Ho;Park, Woon-Jean
    • The KSFM Journal of Fluid Machinery
    • /
    • v.15 no.4
    • /
    • pp.67-71
    • /
    • 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.

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

  • Seo, Jeong-Se;No, Seung-Tak
    • Transactions of the Korean Society of Mechanical Engineers B
    • /
    • v.21 no.11
    • /
    • pp.1552-1561
    • /
    • 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.

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

  • Yu Kwon-Kyu;Yoon Byung-Man
    • Journal of Korea Water Resources Association
    • /
    • v.39 no.9 s.170
    • /
    • pp.737-744
    • /
    • 2006
  • The velocity of the inner region of turbulent flow on a smooth bed has complex profile which can not be described with a simple formula. Though there have been a couple of formulas describing the profile, most of them have very complex forms, i.e., with many terms, with integration form, or with implicit forms. It means that it is hard to use them or it is difficult to estimate their parameters. A new single formula that describes the velocity profile of the inner region of the turbulent flow on a smooth bed was proposed. This formula has a form of the traditional log-law multiplied by a damping function. Introducing only one additional parameter, it can describe the whole inner range nicely. It approximates the law-of-the-wall in the vicinity of the bed and approaches to the log-law in the overlap region. The added parameter, damping factor, can be estimated very easily. It is not sensitive to the Reynolds number change and the velocity profile calculated by the formula does not change much due to the change of the parameter.

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

  • Kwon, Hyo-Keun;Lee, Sang-Ho
    • The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
    • /
    • v.4 no.2
    • /
    • pp.93-100
    • /
    • 1999
  • Analyzing the tide data taken at Kunsan inner and Outer ports, non-tidal and mean sea level and harmonic constants of major constituents are investigated to examine the effects of the dyke gate operation on the sea level change in Keum River estuary. Non-tidal and annual mean sea levels decrease at Kunsan Inner and Outer ports after the dyke gate operation, especially showing an abrupt drop of non-tidal sea level at Kunsan Inner port. This non-tidal sea level drop results in the mean sea level gradient change between the inner and outer port, which can be mainly explained in terms of the decrease of river discharge from the dyke. Amplitudes of the $M_2$ and $S_2$ tides at the Inner port increase after the dyke gate operation, showing an abrupt jump, and phases of both tides slightly decrease. Amplitude and phase of the $K_1$ and $O_1$ tides show slight changes after the dyke gate operation. This significant change of semi diurnal tide amplitude is believed as a result of superposition of incident tidal wave and reflected tidal wave from the dyke.

  • PDF

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

  • Jarng Soon Suck
    • The Journal of the Acoustical Society of Korea
    • /
    • v.24 no.1E
    • /
    • pp.1-6
    • /
    • 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.