• Title/Summary/Keyword: Width-to-height

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A PHOTOMETRIC STUDY OF MAXILLOFACIAL NORMALS IN 19 TO 20 YEARS-OLD KOREAN (한국 성인 19-20세 안모의 실물사진계측분석학적 연구)

  • Jeon, Yong-Il;Kim, Yeo-Gab
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.28 no.4
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    • pp.318-325
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    • 2002
  • The primary method of diagnosis in craniofacial deformity patient is used by gross inspection. So we studied the frontal photometric measurements for maxillofacial Korean normals 44 male and 48 female ages 19 to 20 years were selected from a group of 92 healthy Kyung Hee university students in Seoul.. The photograph were taken with the subject sitting in head position parallel with interpapillary plane to the floor. During taking pictures, facial anallyser by Obwegeser(Martin Co., Germany) was used for correct measurements. The results of this study was followed. 1. In the linear measurements, all values of males were longer than those of females but middle third height and lower third height, facial width and nasal width of males were longer than those of females in p<0.05 2. The difference between right and left angular and linear measurement was insignificant. 3. In the horizontal facial ratios, interocular distance and nasal width were longer and mouth width were smaller in korean than in american(p<0.05). 4. In the vertical ratios, korean women have shorter facial height of lower third comparing with facial height of middle third than american(p<0.05). 5. In the vertical facial ratios, korean have smaller proportion below the stomion in the lower third department than american. (p<0.05).

Back-bead Prediction and Weldability Estimation Using An Artificial Neural Network (인공신경망을 이용한 이면비드 예측 및 용접성 평가)

  • Lee, Jeong-Ick;Koh, Byung-Kab
    • Transactions of the Korean Society of Machine Tool Engineers
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    • v.16 no.4
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    • pp.79-86
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    • 2007
  • The shape of excessive penetration mainly depends on welding conditions(welding current and welding voltage), and welding process(groove gap and welding speed). These conditions are the major affecting factors to width and height of back bead. In this paper, back-bead prediction and weldability estimation using artificial neural network were investigated. Results are as follows. 1) If groove gap, welding current, welding voltage and welding speed will be previously determined as a welding condition, width and height of back bead can be predicted by artificial neural network system without experimental measurement. 2) From the result applied to three weld quality levels(ISO 5817), both experimented measurement using vision sensor and predicted mean values by artificial neural network showed good agreement. 3) The width and height of back bead are proportional to groove gap, welding current and welding voltage, but welding speed. is not.

Effect of height-to-width ratio on composite wall under compression

  • Qin, Ying;Yan, Xin;Zhou, Guan-Gen;Shu, Gan-Ping
    • Steel and Composite Structures
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    • v.36 no.5
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    • pp.507-519
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    • 2020
  • Double skin composite walls are increasingly popular and have been applied to many safety-related facilities. They come from the concept of composite slabs. Conventional connectors such as shear studs and binding bars were used in previous studies to act as the internal mechanical connectors to lock the external steel faceplates to the concrete core. However, the restraint effects of these connectors were sometimes not strong enough. In this research, a recently proposed unique type of steel truss was employed along the wall height to enhance the composite action between the two materials. Concrete-filled tube columns were used as the boundary elements. Due to the existence of boundary columns, the restraints of steel faceplates to the concrete differ significantly for the walls with different widths. Therefore, there is a need to explore the effect of height-to-width ratio on the structural behavior of the wall. In the test program, three specimens were designed with the height of 3000 mm, the thickness of 150 mm, and different widths, to simulate the real walls in practice. Axial compression was applied by two actuators on the tested walls. The axial behavior of the walls was evaluated based on the analysis of test results. The influences of height-to-width ratio on structural performance were evaluated. Finally, discussion was made on code-based design.

A study on the suitable of building size in district units plan (지구단위계획(地區單位計劃)에서 건축(建築) 규모설정(規模設定)에 관한 연구(硏究))

  • Lee, Won-Geun;Lee, Jae-Kook;Do, Gyu-Hwan
    • Journal of The Korean Digital Architecture Interior Association
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    • v.3 no.1
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    • pp.39-49
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    • 2003
  • The height provisions, by the urban planning, describe the hightest height per width division, also define oblique line limitation by road without mentioning the highest per width division. Therefore this study will be a basic model for the standard of measuring the highest height per width division analysizing the propriety of current standard of oblique limitation. This technique is prepared to prevent the confusion and to complements the existing planning method. Therefore, it takes more time to establish this new method and to apply it to the existing condition. This study reviewed density control in District Units Plan, based on the guidelines of density, which included height, ratio of total floor to ground area, and land distribution. This study aims to provide efficient analysis by using current oblique limitation provisions Thus, proving the area rations of general residential areas are decreasing. Since the purpose of the District Units Plan is to avoid confusion and help ease the existing problematic conditions which have risen from the two above-mentioned conventional systems, further observation and research on these areas are necessary.

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Body Types of Tall Women Over 165cm (165cm 이상 키 큰 여성의 체형 유형)

  • Su Joung Cha
    • Journal of the Korean Society of Clothing and Textiles
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    • v.48 no.3
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    • pp.528-542
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    • 2024
  • The aim of this study was to analyze and typify the body shape of tall women aged 20-69 using 3D measurement data from the 2020 8th Human Dimensions Survey data with greater than 165.0 cm in height defined as large stature. Each body type's characteristics were examined to derive points of differentiation compared to women of average body type. The analysis showed that as height increases, body height, length, and generally body circumference, thickness, and width also increase. However, taller women were found to have thinner waists, indicating a wider, flatter waist area. Waist circumference was also smaller, albeit not at a statistically significant level. Body shapes of adult women over 165.0 cm tall were classified into three types. The following body types were analyzed: thick ankles and drooping shoulders, thin and short torso, tall and long, long torso and thick ankles, large body circumference, thickness and width, normal torso length, and short stature and thin ankles. To develop garments for adult women over 165.0 cm tall, a new drafting method was required set the waist, knee height, and shoulder width.

A Study on the Preference of the Hedge Planting Pattern (생울타리 식재 패턴의 선호도에 관한 연구)

  • 최연철;김진선
    • Journal of the Korean Institute of Landscape Architecture
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    • v.25 no.3
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    • pp.234-245
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    • 1997
  • This study aims to clarify the preference of the hedge, on focusing the height, density, width of the hedge, which gives limited dwelling space continuity with outer space, promotes the naturality to dwelling environment, and plays an important role as green space in city. For this, it is performed statistical analysis by field survey, by classifying the hedge as planting pattern, and synthesizing the photograph. Therefore, the results of this study are as follows : 1. In the preference of height of the hedge, when only the hedge is composed, 1.5M is preferred, and when the hedge with deciduous tree, with needle-leaf tree, 1.25M is preferred. 2. In the preference of density of the hedge, which are perfect density, in case of the hedge, which are almost density, in case of the needle-leaf tree, are preferred. 3. In the preference of width of the hedge, 0.4M is preferred. 4. In the preferential factors of the hedges, the preference of the hedge is mainly influenced by density. As the result of multiple regression analysis of visual preference as the height, the density, the width, and the regression equation are as follows : Visual Preference = 0.094+0.412(density)+0.370(height)+0.177(width)

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Correlation between Palpebral Fissure and Exophthalmos in Korean Adult Women Population (한국 성인 여성 집단에서 검열과 안구돌출의 상관관계)

  • Kim, Douk-Hoon;Waidyarathna, Kumuda
    • Journal of Korean Clinical Health Science
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    • v.2 no.1
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    • pp.17-23
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    • 2014
  • Purpose. This study was to investigate the relationship between the palpebral fissure size and the exophthalmos in a population of Korean adult women subjects with normal eye status. Methods. From November 2012 to September 2013, The authors analyzed the morphological values in 73 Korean adults population. The test was performed using the Hertel exophthalmometer and verner califer. Analysis of subjects data were recorded using the spss version 20.0 a statistical program (IBM Co, Armonk, NY USA). Results. The average age of the 73 subjects (146 eyes) was (21.219+/-0.261)mm. the average value of palpebral fissure was (25.110+/-1.646)mm in width and (8.096+/-1.464)mm in height. The average value of exophthalmos was (15.002+/-1.922)mm. There was a significant relationship(P>0.05) in the average size between the width and height in palpebral fissure. Also, there was a significant relationship(P>0.05) in the average size between the palpebral fissure width and exophthalmos. On the other hand, there was a significant relationship(P>0.01) in the average size of palpebral fissure height and exophthalmos. Conclusions: In this study, these results suggested that the palpebral fissure and exophthalmos had a significant relationship in the average value of size in Korean adult women population.

Analysis on the Shape Classification of the Head of Korean Female Children for the Headwear Sizing System (초등학교 여자 아동의 모자 치수체계를 위한 머리 유형 분석)

  • Kim Son-Hee
    • The Research Journal of the Costume Culture
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    • v.13 no.2 s.55
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    • pp.200-208
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    • 2005
  • This study was aimed to provide the measurement data and shape classification of the head of the Korean female children for the headwear sizing systems. Four hundred nineteen female children, aged nine to twelve years, participated for this study. The 19 regions on the head and height, weight of the subjects were directly measured by the expert experimenters. Factor analysis, cluster analysis, GLM analysis and Tukey HSD test were performed using these data. Through factor analysis, five factors were extracted upon factor scores and those factors comprised $71.318\%$ for the total variances. Three clusters as their head shape were categorized using fiver factor scores by cluster analysis. Type 1 was characterized by the widest head width, Bitragion arc, and shortest head length, and medium height and weight. Type 2 had the longest head length and the widest side head width and the highest head circumference, and highest height and largest weight. Type 3 was characterized by the medium head length, smallest head circumstance, narrowest head width and side head width, and smallest height and weight.

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Relationship between mesiodistal width and enamel thickness in mandibular incisors (하악 절치 근원심폭경과 법랑질 두께의 관계)

  • Han, Uk;Gang, Sung-Nam;Lim, Sung-Hoon
    • The korean journal of orthodontics
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    • v.41 no.3
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    • pp.184-190
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    • 2011
  • Objective: The purpose of this study was to investigate the relationship between the enamel thickness of proximal surfaces and the morphologic features of mandibular incisors. Methods: Mesiodistal/faciolingual (MD/FL) index, MD width, and height of contour width/cervical width ratio were measured in 40 incisors extracted from Koreans. For determining the height of contour width/cervical width ratio, the cervical width was measured as the distance between proximal cementoenamel junctions. Then, the labial surface was ground to the height of the contour level to measure enamel thickness. Pearson correlation analysis was used to investigate the correlation between enamel thickness and morphologic features. Results: Enamel thickness was $0.75{\pm}0.07mm$ per side, and MD width was $5.56{\pm}0.40mm$. Enamel thickness and MD width were significantly correlated. However, a significant relationship was not observed between enamel thickness and MD/FL index or the height of contour width/cervical width ratio. Conclusions: The results suggest that enamel thickness is affected only by MD width. Therefore, if the MD width is the same for mandibular incisors with a large MD/FL index or triangular shape and mandibular incisors with normal shape, then the limit of enamel reduction for reproximation will be the same.

A Study on the Variation of Collar Edge and Height according to the Angles of Collar Roll Line - Based on the Open Collar - (칼라 꺾임선(線) 눕힘각도(角度) 변화(變化)에 따른 외곽치수(外廓値數) 및 스탠드량 변화(變化)에 관(關)한 연구(硏究) - 오픈 칼라를 중심(中心)으로 -)

  • Lim, Ja-Young
    • Journal of Fashion Business
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    • v.9 no.2
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    • pp.143-159
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    • 2005
  • This study was done to provide basic data for clothing design and thus to contribute to the academic development at the clothing and textile area and collar roll line lay down angle variation at collar width on the open collar. The study was composed as tallows: 1. The variation at collar outer wall size increase collar roll line lay down angle size the more Increase. 2. The outer wall and stand height size increase aware at variation collar width at the more Increase. It is desirable that this study will be at help to enchancement of life style in garments and promotion of garments industury by developing the archetype basic collar pattern suitable to Korean women's garments.