• 대한치과교정학회지
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• 제24권2호
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• pp.395-403
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• 1994

To find out the antero-posterior morphology of the upper face in Angle's class III malocclusion patients, 90 patients, adults in Heilman's Dental age, were used as samples and following results were obtained after the relative comparision of antero-posterior relationship of upper facial structures between Angle's class I malocclusion patients and Angle's class III malocclusion patients and of antero-posterior size of upper facial structures to horizontal and vertical structures in each patients. 1. After comparison of the distance from PMV line to anterior margin of maxillary sinus and cheek, which determines the antero-posterior position of the upper face, upper face in Angle's class III patients are underdeveloped relative to Angle's class I patients. The distance between orbitale and anterior margin of maxillary sinus were greater in Angle's class I patients, whic implies thart the upper face in Angle's class III are depressed. 2. Antero-posterior dimension of anterior cranial base from PMV line and vertical dimension of upper face are statistically insignificant between two groups. After comparing antero-posterior position of upper face to anterior cranial base, the upper face in Angle's class Et patients are depressed antero-posteriorly in relation to anterior cranial base. Following the comparision of antero-posterior position of upper face in relation to vertical dimension of upper face, the upper face in Angle's class III patients seem to be narrow antero-posteriorly

• 사상체질의학회지
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• 제10권1호
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• pp.161-170
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• 1998

1. 연구목적 : 외형적 특징을 통한 사상체질진단을 연구하기 위한 목적이다. 특별히 상안부에서 모아레 영상을 이용한 형태학적 차이를 찾고자 하였다. 2. 방법 : 1996년 4월부터 1997년 2월까지 경희의료원 부속한방병원 왜래환자 및 직원을 대상으로 설문지 및 임상적치료 경과를 통하여 체질적 경향성이 뚜렷한 대상자를 선별하였다. 이들을 동일촬영 조건을 통하여 얻은 얼굴 사진중 형태특이자를 제외한 113례의 모아레 사진을 분석하여 50항목을 측정하고 70항목의 공식을 제작하여 체질별 상이점을 도출하였다. 3. 결과 : 상안부 모아레 영상을 분석하여 체질에 따른 특징은 따로 도표로 제시한다. 4. 결론 : 소양인은 태음인 혹은 소음인에 비하여 좌측상안의 일부가 전방으로 돌출되었고, 태음인은 좌우측 상안의 비교에서 우측상안의 일부부위에서 소음인 혹은 소양인에 비하여 전방으로 돌출되었다. 모아레 영상을 이용하여 체질에 따른 상안부의 형태학적인 특징을 도출하였다.

• 사상체질의학회지
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• 제10권2호
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• pp.271-281
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• 1998

1. 연구목적 : 외형적 특징을 통한 사상체질진단을 연구하기 위한 목적이다. 상안부에 나타나는 등고선 영상을 분석하여 사상인별 형태학적 차이를 찾는데 있다. 2. 방법 : 1997년 11월부터 1998년 10월까지 경희의료원 부속한방병원 외래환자 및 직원을 대상으로 설문지 및 임상적치료 경과를 통하여 체질적 경향성이 뚜렷한 여성을 대상자로 선별하였다. 이들을 동일촬영 조건을 통하여 얻은 등고선 영상사진등 형태특이자를 제외한 98례의 모아레 사진을 분석하여 50항목을 측정하고 70항목의 공식을 제작하여 사상인별 상이점을 도출하였다. 3. 결과 : 상안부 모아레 영상을 분석하여 체질에 따른 특정은 따로 도표로 제시한다. 4. 결론 : 소양인은 태음인에 비하여 좌측상안의 일부가 전방으로 돌출되었다. 모아레 영상을 이용하여 체질에 따른 상안부의 형태학적인 특징을 도출하였다.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 1999년도 가을 학술발표회 논문집
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• pp.193-200
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• 1999

Since Broms and Bennermark(1967) suggested the face stability criterion based on laboratory extrusion tests and field observations, the face stability of a tunnel driven in cohesive material has been studied by several authors. And recently, more general solution for the tunnel front is given by Leca and Panet(1988). They adopted a limit state design concept to evaluate the face stability of a shallow tunnel driven into cohesionless material and showed that the calculated upper bound solution represented the actual behavior reasonably well. In this study, two factors are simultaneously considered for assessing tunnel face stability: One is the effective stress acting on the tunnel front calculated by upper bound solution; and the other is the seepage force calculated by numerical analysis under the condition of steady state ground water flow. The model tests were performed to evaluate the seepage force acting on the tunnel front and these results were compared with results of numerical analysis. Consequently, the methodology to evaluate the stability of a tunnel face including limit analysis and seepage analysis is suggested under the condition of steady state ground water flow.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2001년도 봄 학술발표회 논문집
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• pp.41-48
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• 2001

In this study, two factors are simultaneously considered for assessing tunnel face stability: one is the effective stress acting on the tunnel face calculated by upper bound solution; and the other is the seepage force calculated by numerical analysis under the condition of steady-state groundwater flow. The seepage forces calculated by numerical analysis are compared with the results of a model test. From the results of derivations of the upper bound solution with the consideration of seepage forces acting on the tunnel face, it could be found that the minimum support pressure for the face stability is equal to the sum of effective support pressure and seepage pressure acting on the tunnel face. Also it could be found that the average seepage pressure acting on the tunnel face is proportional to the hydrostatic pressure at the same elevation and the magnitude is about 22% of the hydrostatic pressure for the drainage type tunnel and about 28% for the water-proof type tunnel. The model tests performed with a tunnel model had a similar trend with the seepage pressure calculated by numerical analysis. From the model tests it could be also found that the collapse at the tunnel face occurs suddenly and leads to unlimited displacement.

• International Journal of Advanced Culture Technology
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• 제10권3호
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• pp.226-236
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• 2022

We compared and analyzed the changes in students' science grades and their effects on science grades by level (upper, middle, and lower) according to non-face-to-face and face-to-face teaching-learning. 66 students from A Middle School in Gyeongsangnam-do were selected for the study. As a result of analyzing the change in science grades according to the teaching-learning type, the average score of science grades by non-face-to-face teaching-learning was lower than the corresponding score of science grades of face-to-face teaching-learning. As a result of comparing the level of understanding of learning content according to the evaluation type (paper-written, study-paper) in non-face-to-face and face-to-face teaching-learning, the average scores of science grades by paper-written and study-paper evaluations in non-face-to-face teaching-learning were significantly low. In addition, as a result of comparing the effect on science grades by level according to the teaching-learning type, the average score of science grades of lower-ranked students in non-face-to-face teaching-learning was relatively low.

• Geomechanics and Engineering
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• 제32권2호
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• pp.145-157
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• 2023

This paper aims at investigating the face stability of large-diameter underwater shield tunnels considering seepage in soft-hard uneven strata. Using the kinematic approach of limit upper-bound analysis, the analytical solution of limit supporting pressure on the tunnel face considering seepage was obtained based on a logarithmic spiral collapsed body in uneven strata. The stability analysis method of the excavation face with different soft- and hard-stratum ratios was explored and validated. Moreover, the effects of water level and burial depth on tunnel face stability were discussed. The results show the effect of seepage on the excavation face stability can be accounted as the seepage force on the excavation face and the seepage force of pore water in instability body. When the thickness ratio of hard soil layer within the excavation face exceeds 1/6D, the interface of the soft and hard soil layer can be placed at tunnel axis during stability analysis. The reliability of the analytical solution of the limit supporting pressure is validated by numerical method and literature methods. The increase of water level causes the instability of upper soft soil layer firstly due to the higher seepage force. With the rise of burial depth, the horizontal displacement of the upper soft soil decreases and the limit supporting pressure changes little because of soil arching effect.

• 감성과학
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• 제13권3호
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• pp.485-492
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• 2010

이 논문에서는 20대와 60대를 얼굴의 측정치와 시각적 분석을 통해 얼굴의 비율과 불균형을 분석하였다. 얼굴폭과 얼굴길이의 비율이 20대는 1 : 1.34, 60대는 1 : 1.39로 나타나 60대 여성의 얼굴길이가 길며, 상안 부길이, 중안부길이, 하안부길이의 비율에서 20대는 0.85 : 1 : 1로 중안부길이와 하안부의 길이가 같은 반면, 60대는 0.84 : 1 : 1.06으로 하안부길이가 길고 상안부길이가 짧다. 얼굴의 균형감은 $2^{\circ}$이상의 심한 불균형인 경우 눈초리각도가 20대에서 8%, 60대에서 13%, 코각도가 20대에서 11%, 60대에서 29%, 구각각도에서 20대가11%, 60대에서 40%로 나타나, 60대의 불균형이 심각하게 나타났다. 이상과 같이 20대에 비해 60대의 얼굴이 전체적으로 길며, 그중에서도 하안부가 길게 나타난 것은 노화로 인해 얼굴이 변화됨을 알 수 있다. 또한 얼굴의 불균형이 20대에 비해 60대에서 많이 나타남을 알 수 있다.

• 한국생활과학회지
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• 제14권5호
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• pp.813-820
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• 2005

The beauty itself cannot be changed by the time, but the concept of the beauty can be influence by the time and cultural background. The purpose of this study is to analyze the beautiful faces or ugly faces among the young women and to provide useful guideline to make up for the modem concept of beauty. The facial photographs of 180 adlut women(aged between 20 and 29) in Pusan and Ulsan area were sampled to be measured and classified as the beautiful or ordinary or ugly faces. Data were analyzed by Frequencies, Mean, Duncan's Multiple Range Test. The major results were as followings; the Beautiful face has a relatively small face with a broad forehead and a small lower face. It also has a wide palpebral fissure, narrow intercanthal distance, a narrow nose and a big mouth. Physiognomic face length was 182.38mm, the upper face length was 59.82mm, the middle face length 60.82mm, the lower face length 61.76mm, and the index of face length to face breadth was 1.35. And also the faces within the figures are considered as the beautiful or ordinary or ugly faces from those measurements like face length/bizygion breadth, intercanthal distance, mouth width, upper vermilion height, lower vermilion height.

• 한국기계가공학회지
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• 제1권1호
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• pp.89-100
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• 2002

The purpose if this research was to improve the pressure distribution on the disk brake pad Not uniform pressure distribution on the disk brake pad generate the unbalance wear of it and the unbalance wear of disk brake pad generate vibration, noise, heat and reduce the braking capacity. For improve the pressure distribution on the pad in this research, upper face of caliper housing finger was cut. Two kinds of caliper which uncut and cut of finger face were compared the stress distribution by FEM analysis and real experiment. Also natural frequency and deforming displacement ware calculated. It was understood that pressure distribution could Improve by cut inside upper face of caliper housing finger.