• 제목/요약/키워드: Nose Shape

검색결과 187건 처리시간 0.022초

코의 크기 및 형태와 자가건강, 미병과의 상관성 (Association of Nose Size and Shapes with Self-rated Health and Mibyeong)

  • 안일구;배광호;진희정;이시우
    • 동의생리병리학회지
    • /
    • 제35권6호
    • /
    • pp.267-273
    • /
    • 2021
  • Mibyeong (sub-health) is a concept that represents the sub-health in traditional East Asian medicine. Assuming that the nose sizes and shapes are related to respiratory function, in this study, we hypothesized that the nose size and shape features are related to the self-rated health (SRH) level and self-rated Mibyeong severity, and aimed to assess this relationship using a fully automated image analysis system. The nose size features were evaluated from the frontal and profile face images of 810 participants. The nose size features consisted of five length features, one area feature, and one volume feature. The level of SRH and the Mibyeong severity were determined using a questionnaire. The normalized nasal height was negatively associated with the self-rated health score (SRHS) (partial ρ = -0.125, p = 3.53E-04) and the Mibyeong score (MBS) (partial ρ = -.172, p = 9.38E-07), even after adjustment for sex, age, and body mass index. The normalized nasal volume (ρ = -.105, p = 0.003), the normalized nasal tip protrusion length (ρ = -.087, p = 0.014), and the normalized nares width (ρ = -.086, p = .015) showed significant correlation with the SRHS. The normalized nasal area (ρ = -.118, p = 0.001), the normalized nasal volume (ρ = -.107, p = .002) showed significant correlation with the MBS. The wider, longer, and larger the nose, the lower the SRHS and MBS, indicating that health status can be estimated based on the size and shape features of the nose.

원통형 수중운동체 두부 형상 역설계 (An Inverse Design for Nose Shape of a Cylindrical-Shaped Submerged Body)

  • 정철민
    • 한국군사과학기술학회지
    • /
    • 제7권3호
    • /
    • pp.69-76
    • /
    • 2004
  • In this paper, an efficient inverse design method for nose shape of submerged body based on the MGM(Modified Garabedian-McFadden) design method has been developed. The MGM design method is a residual-correction technique, in which the residuals are differences between the desired and the computed pressure distributions. 3-D incompressible Wavier-Stokes equation was adopted for obtaining the surface pressure distribution and combined with the MGM design method to perform the inverse design of nose shape of submerged body. The design method was verified by applying to several airfoil shapes. Improved design shapes could be obtained when the method was applied to nose shapes of submerged body.

망진(望診)에서 비(鼻) 형태(形態)의 중요성 연구 (Study on Analysis of Nose Shape from the viewpoint of Inspection Diagnosis)

  • 장준용;김경신;강정수;김병수
    • 혜화의학회지
    • /
    • 제20권1호
    • /
    • pp.51-63
    • /
    • 2011
  • There are two methods in inspection diagnosis(望診), the viewing shape(觀形) and the inspecting color(察色). Acquiring proper analysis from viewing shape(觀形) requires several standards of shape that can be compared with. We can identify major defects and flaws of the shape from comparing it with the standards that is defined as very normal shape. Also, It can eventually provide us interpretation of health related meanings of the objective shapes. Those standards need symmetrical and proportional details. In this research, I put some physiognomy and inspection diagnosis related documents, and standards for restorative plastic surgery together to suggest standards on viewing shape diagnosis of nose which is one of the most important spot in facial inspection. It is expected to improve delicacy of Oriental medine's inspection diagnosis, as the result of the comparison between plastic surgery and inspection diagnosis.

Effect of Train Shape on a Compression Wave Generated by a Train Moving into a Tunnel

  • Ogawa Takanobu;Fujii Kozo
    • 한국전산유체공학회:학술대회논문집
    • /
    • 한국전산유체공학회 1995년도 창립기념학술대회
    • /
    • pp.30-36
    • /
    • 1995
  • An axisymmetric flow induced by a train moving into a tunnel is numerically simulated. The effect of train shape on wavefront of a compression wave created by a train is investigated parametrically using several model trains having the same nose shape but different blockage. The zonal method combined with the Fortified Solution Algorithm (FSA) is employed as a numerical algorithm to solve this moving body problem. The computational result is compared with the experimental data. Good agreement is obtained, which justifies the present computational approach. The compression waves created by the model trains are compared and the result shows that the pressure gradient of the wavefront of the compression wave becomes small in the case of small blockage even though the nose shape is same. The wavefront is not determined solely by the cross-sectional area distribution of the train nose.

  • PDF

Classification of Nasal Index in Koreans According to Sex

  • Sung-Suk Bae;Hee-Jeung Jee;Min-Gyu Park;Jeong-Hyun Lee
    • 치위생과학회지
    • /
    • 제23권3호
    • /
    • pp.193-198
    • /
    • 2023
  • Background: The nose is located at the center of the face, and it is possible to determine race, sex, and the like. Research using the nasal index (NI) classification method to classify the shape of the nose is currently in progress. However, domestic research is required as most research is being conducted abroad. In this study, we used a 3D program to confirm the ratio of the nose shape of Koreans. Methods: One hundred patients (50 males and 50 females) in their 20s were evaluated (IRB approval no. DKUDH IRB 2020-01-007). Cone beam computed tomography was performed using the Mimics ver.22 (Materialise Co., Leuven, Belgium) 3D program to model the patient's skull and soft tissues into three views: coronal, sagittal, and frontal. To confirm the ratio of measurement metrics, analysis was performed using the SPSS ver. 23.0 (IBM Co., Armonk, NY, USA) program. Results: Ten leptorrhine (long and narrow) type, 76 mesorrhine (moderate shape) type, and 14 platyrrhine (broad and short) type noses were observed. In addition, as a result of sex comparison, five males had the leptorrhine (long and narrow) type, 40 mesorrhine (moderate shape), and five platyrrhine (broad and short) types. For females, five patients had the leptorrhine (long and narrow) type, 36 patients had the mesorrhine (moderate shape) type, and nine patients had the platyrrhine (broad and short) type. Conclusion: This study will be helpful when performing nose-related surgeries and procedures in clinical practice and for similar studies in the future.

터널 주행속도 향상을 위한 고속열차 전두부 형상 최적화 (Nose Shape Optimization of the High-Speed Train for the Speed-up in Tunnel)

  • 구요천;윤수환;노주현;김규홍;이동호;권혁빈
    • 한국철도학회:학술대회논문집
    • /
    • 한국철도학회 2008년도 춘계학술대회 논문집
    • /
    • pp.2207-2212
    • /
    • 2008
  • The next generation of Korean high-speed train under development will be designed for the maximum operating speed of 350km/h and maximum speed of 400km/h. This high-speed operation may cause the noise and vibration problems around tunnel exit due to the higher micro-pressure wave than present level. In this study, the nose shape optimization was conducted for the countermeasure against these problems. Axi-symmetric solver was used for numerical simulation, and response surface was used for efficiency of optimization process. Also the multi-step optimization was conducted to find out more accurate optimal shape. Through these analysis and optimization, it was found out that the optimal nose shapes for minimization of micro-pressure wave are definitely different along the nose length variation. And the mechanism of micro-pressure wave reduction was closely investigated by the analysis of generation process of compression wave in tunnel. The results are expected to be used as design guideline for performance improvement of the next generatin of Korean high-speed train.

  • PDF

선단형상이 다른 비상체의 충돌을 받는 콘크리트의 파괴특성 (Failure Properties of Concrete by Projectile Nose Type)

  • 김재필;김규용;김홍섭;김정현;한상휴;이상규
    • 한국건축시공학회:학술대회논문집
    • /
    • 한국건축시공학회 2015년도 추계 학술논문 발표대회
    • /
    • pp.30-31
    • /
    • 2015
  • High velocity impact of projectile generate local failure such as penetration, scabbing, perforation on concrete. It has been reported that local failure is affected by such as nose shape, mass of projectile. In this study, comparing and weighing the impact failure properties of concrete by high velocity impact test that using spherical nose and flat nose type projectile. As a result, It was considered that scabbing of Flat nose projectile reduced more than spherical nose projectile by dispersion of impact force.

  • PDF

$9{\sim}12$세 남자 아동의 머리와 얼굴 부위 측정 및 유형 분류 (Analysis on the Measurement and Shape Classification of the Head and Face for Korean Male Children aged $9{\sim}12$ years)

  • 이현민;최혜선;김선희
    • 복식문화연구
    • /
    • 제12권6호
    • /
    • pp.933-944
    • /
    • 2004
  • This study was aimed to provide the fundamental and various measurement data of the head and face for male children. Two hundred forty one male children, aged nine to twelve years, participated for this study. The 31 regions on the head and face of the subjects were directly measured by the expert experimenters. Through factor analysis, the six factors were extracted upon factor scores and those factors comprised $67.47\%$ for the total variances. The first factor was described the general height elements for the mouth and the environs of the mouth. The second factor was described the general height around the nose, forehead and eyes. The third factor was described the height of the ear environs. The forth factor contained the length around the sinciput to the occiput, the head thick and the head circumstance. The fifth factor was described the general width of the outer head and the corner of the eyes. The last factor contained the depth of the mouth and nose. Four clusters as their head and face shape were categorized using six factor scores by cluster analysis. Type 1 was characterized by the shortest head and face width, surface length and girth, and the shorter length of head, but the highest position of chin, philtrum, upper lip. Type 2 was characterized by the shortest head and face length and thickness, and the lowest position of the forehead, eye, nose, mouth, ear environs, but that had wider width of head and face. Type 3 was characterized by the longest and the widest head and face type, and the highest position of the mouth. Type 4 was characterized by longer length of head and face, and the widest head girth and largest head thickness, and the highest position of the forehead, eye, nose environs. And this type had the widest width of nose and mouth, and the longest head surface length.

  • PDF

반응면 기법을 이용한 발사체 선두부 다점 최적설계 (A Multi-Point Design Optimization of a Space Launcher Nose Shapes Using Response Surface Method)

  • 김상진;전용희;이재우;변영환
    • 한국전산유체공학회:학술대회논문집
    • /
    • 한국전산유체공학회 2000년도 추계 학술대회논문집
    • /
    • pp.46-53
    • /
    • 2000
  • To improve the performance at all design points, multi-point optimization method is implemented for the nose fairing shape design of space launcher. The response surface method is used to effectively reduce the huge computational loads during the optimization process. The drag is selected as the objective function, and the surface heat transfer characteristics, and the internal volume of the nose fairing ate considered as design constraints. Full Wavier-Stokes equations are selected as governing equations. Two points drag minimization, and two points drag / heat flux optimization were successfully performed and configurations which have good performance for the wide operation range were derived. By considering three design points, the space launcher shape which undergoes the least drag during whole flight mission was designed. For all the design cases, the constructed response surfaces show good confidence level with only 23 design points with the proper stretching of the design space.

  • PDF

구규(九竅)에 대한 연구(硏究) -수평(水平)과 수직(垂直)의 관점을 위주로- (A study on the nine orifices -from horizontal and vertical views-)

  • 강정수
    • 동의생리학회지
    • /
    • 제14권2호통권20호
    • /
    • pp.11-21
    • /
    • 1999
  • In this paper the nine orifices were analyzed horizontally and vertically and the relationship between the upper seven orifices and lower two orifices was looked into specifically. The following results were obtained : l. Horizontal is the shenji (神機) which comes in and out, and it symbolizes animality based on heaven. so it is dynamic. Vertical is the qiji (氣機) which goes up and down. and it symbolizes vegetability based on earth. so it is static. 2. The shape of the eyes and lips is horizontal, so the shape of the liver and spleen which are related to the eyes and lips respectively is also horizontal. Thus the eyes and lips can move and the action of these are mainly concerned with the coming in and out of energy. 3. The shape of the nose and ears is vertical. so the shape of the lungs and kidneys which are related to the nose and ears respectively is also vertical. Thus the nose and ears remain still and the action of these are mainly concerned with going up and down of energy. 4. One means yang(陽) and two means yin(陰). so the nose and mouth which have one are yang. the eyes and ears which have two are yin. 5. The urethra consists of yangming(陽明) and taiyin(太陰) which control the front so it draws out urine which is yang(陽). The anus controls the back. so it draws out feces which is yin(陰). 6. The upper seven orifices are related to the five viscera which control immaterial spirit. The lower two orifices are related to the six bowels which control material movement.

  • PDF