• Title/Summary/Keyword: feet shape

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Development of 30 Feet Sailing Yacht and Performance Predictions (30피트급 요트의 선형개발 및 성능추정)

  • Yoo, Jae-Hoon;Van, Suak-Ho;Ahn, Hae-Seong;Kim, Jin;Kim, Sang-Hyun
    • Journal of the Society of Naval Architects of Korea
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    • v.42 no.1 s.139
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    • pp.34-42
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    • 2005
  • An overview of 30 feet sailing yacht design is presented, with an emphasis on the factors contributing to start-up popularization. After prescribing the configurations of the purposed yacht, the design of the hull form with a rudder and a keel, are schematically described. Also the determinations of the dimensions of the sail and rig are performed. Finally this paper is associated with the state-of-the-art of calculating sailing yacht performance as this is performed in velocity prediction program (VPP). The VPP results shows a typical shape of a sailing yacht and the designed yacht has the best performance at 120 degree angle of true wind with 20 knots.

Fine Structural Analysis on the Dry Adhesion System of the Jumping Spider Plexippus setipes (Araneae: Salticidae)

  • Moon, Myung-Jin;Park, Jong-Gu
    • Animal cells and systems
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    • v.13 no.2
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    • pp.161-167
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    • 2009
  • The cuticle of spider's exoskeleton is a hydrophobic and non-adhesive material, but the jumping spiders have the distinctive attachment apparatus for adhesion on smooth dry surface without sticky fluids. We have examined the whole tarsal appendages of the jumping spider, Plexippus setipes with using scanning electron microscope to reveal the fine structural characteristics of the dry adhesion system. All eight legs have the scopulae with a pair of claws on the tip of feet. Each scopula is composed of two groups of setae that are capable of dry adhesion on smooth surface, and the hook structure of the claw is advanced to move on the rough surface. The setae toward the bottom of the tarsal segment are densely covered by numerous setules on the underside which broadened from middle to distal portion. It has been revealed by this research that the contact area of the setule is always a triangular shape, and these cuticular surfaces are connected by the elongated stalks from the underlying setae. It is likely that the nano-scale structures including a triangular depression and a longitudinal groove on each setule could functionate when the spider detach its feet from the substrate.

A Study on the Wearing Conditions and Factors of Discomfort with Shoes for Male College Students (남자 대학생의 신발 착용실태와 장해요인)

  • Kweon Soo Ae;Choi Jongmyoung;Kim Jung Sook
    • Journal of the Korean Society of Clothing and Textiles
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    • v.29 no.1 s.139
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    • pp.79-90
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    • 2005
  • The purpose of this study is to find out the wearing conditions and cause of discomfort with shoes for male college students which will provide useful information fur the shoes manufacturer. The questionnaire survey was conducted on 346 male college students on purchasing practices, wearing conditions, and overall satisfaction with shoes. The results were as follows: Male college students have a tendency to have longer buying cycles and buy more expensive shoes compare to high school students. The order of criteria considered fer purchasing was shape, price, style coordination with clothing. The order of criteria considered for purchasing differed according to their major, economic status and purchasing place. Most of them have two pairs of white or black sports shoes and one pair of either black or brown dress shoes. The most popular material was man made leather but college students have more leather shoes than high school students. There were differences between high school students and college students in wearing conditions, how many they have, material and color. The varieties of shoes differed by season. They were satisfied with their shoes' design and color but unsatisfied with qualify or the material and durability of the shoes. Due to the pressure of the shoes, they experienced discomfort such as numbness, blisters on the feet and red skin. They experienced discomfort on the soles of the feet. The causes of discomfort were shape, width, hight of the heel, material and length in order. Dress shoes cause more discomfort than sport shoes due to the hardness of material, and flexibility of the sole. Since the material differed by the price, the degree of discomfort significantly differed by price too.

Classification of Foot Type and the Characteristics According to Types (20대 성인 남녀 발의 형태분류와 유형별 특성 분석)

  • 신우선;성옥상
    • The Research Journal of the Costume Culture
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    • v.7 no.1
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    • pp.38-51
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    • 1999
  • For a ideal construction of shoes, the exact analysis for shape and size of foot is necessary. This study was performed to classify and analyze the foot types of young males and females. For this, methods of cluster analysis, correspondence analysis and value of proportion were used. The subjects were 414 college students and 36 items, weight(1 item), height(8 items), length(6 items), breadth(6 items), girth(7 items), depth(3 items), slope(5 items) on foot were measured. The fundamental results of the study were as follow ; Difference in foot shape between men\`s and women\`s feet was not found below ankle girth. Based on cluster analysis the shapes of foot were classified into five groups, small but relatively slim group, small but relatively barrel group, middle group, large but relatively slim group and large but relatively barrel group. The types of foot had the distinguished dominant characteristics according to sex, weight and height. The results of this study show that there must be the suitable design of shoes for each foot type.

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A Comparative Study on Body Shape Perception and Satisfaction of Korean and Chinese Female University Students (한·중 여대생의 체형인지도와 신체만족도 비교연구)

  • Kweon, Soo Ae;Yoo, Joung Ja;Kim, Eun Young
    • Korean Journal of Human Ecology
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    • v.23 no.3
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    • pp.483-500
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    • 2014
  • Survey was conducted on 201 female college students who in at the university to analyze perceptions and satisfaction levels about their body shapes. Results revealed that the Chinese female students recognized that they had broader shoulder angles, bigger breasts and longer calves and legs than Korean female students whereas the Korean female students had larger hip and thigh circumference than Chinese female students. It was found that the Chinese female students had preference for drooping shoulders while the Korean students perceived themselves as thinner and have longer arms, fingers, waist measurement, torso thickness, calves, feet and legs are ideal body shapes. The results of this study show that body weight, height and chest size have a lot of influence on it and the Korean female students were less satisfied their body shape compared with the Chinese female college students. The correlation analysis indicated that body shapes were an important indicator of satisfaction and the thinner the body shape, chest, thigh, waist, finger, arms, the greater the satisfactions.

A Study on Real Body Size and Ideal Body Shape of 18 to 25 Year-Old Men (20대 남성의 실제체형과 신체이상형(理想型)에 관한 연구)

  • Jeong, Jae-Eun;Lee, Sun-Won
    • Journal of the Ergonomics Society of Korea
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    • v.17 no.2
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    • pp.49-63
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    • 1998
  • The purpose of this study is to study real body size and ideal body shape by considering the degree of satisfaction of body part and understanding body size by the degree of leanness/obesity. The subjects in this study were 420 males from 18 to 25 years old. Body measurements and surveys were taken and analyzed by mean, standard variation, correlation analysis, regression analysis, crosstabulation analysis, cluster analysis, one-way ANOVA, and Duncan's Test. The results of analyses indicate that the subjects tended to be satisfied with thick chest and upper limbs, wide shoulder width, and preferred to be tall and have big hands and feet. By cluster analysis of 19 variables, the subjects were divided into 4 groups, each consisting 41, 138, 134, and 47 males. Because the 19 variables were body measurements transformed to eliminate the body size factor, this classification was considered to express how lean or how obese a human body appears. The results of one way ANOVA and Duncan's Test indicate that, according to the degree of leanness/obesity from Group I (lean tendency) to Group IV(obese tendency), characteristics of the body shape changed as follows; height became lower, limbs became shorter, trunk and limbs became thicker and weight became heavier. Also it showed that Group IV were most satisfied with chest girth, upper limb girth and shoulder width and Group I with height, hip girth and waist girth.

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Effect of Duck's Feet Derived Collagen Sponge on Skin Regeneration: In Vitro Study (오리발 유래 콜라겐 스펀지의 피부재생 효과: In vitro 연구)

  • Cha, Se Rom;Jeong, Hyun Ki;Kim, Su Young;Kim, Eun Young;Song, Jeong Eun;Park, Chan Hum;Kwon, Soon Yong;Khang, Gilson
    • Polymer(Korea)
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    • v.39 no.3
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    • pp.493-498
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    • 2015
  • For biomaterials for skin regeneration with minimized inflammatory response, high bioactivity and biocompatibility are highly required. Also, it should have a porous microstructure to improve cell adhesion and growth. In this study, we extracted a new collagen source from duck's feet which is by-product, and made the shape of sponges from duck's feet collagen (DC) to compare with DBP and SIS. To analyze physical and chemical property of the scaffold, SEM and FTIR were used. MTT assay was used to measure the attachment and proliferation of NIH/3T3 in the scaffolds. RTPCR was used to evaluate the expression of proinflammatory cytokine. Also, 1,1-diphenyl-2-picrylhydrazyl (DPPH) was used to measure the ability of antioxidant activity. Overall, this study shows that DC scaffold is biocompatible and has good physical property. Additionally, DC scaffold shows the potential as wound healing biomaterials.

Comparison of 30 Diagrams of Spleen originated from Ming Tang Zang Fu Tu(明堂臟腑圖) (명당장부도(明堂臟腑圖)에서 기원한 비장도(脾臟圖) 30종의 비교)

  • Jo, Hak-jun
    • Journal of Korean Medical classics
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    • v.33 no.1
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    • pp.61-80
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    • 2020
  • Objectives : To clarify the construction, changes, and contents of the diagrams of spleen through comparison of 30 different diagrams originated from Mingtangzangfutu. Methods : The diagrams were analyzed in whole shape, ratio between width and height, shape of the lower part, and concavo-convex of the middle part, then matched to the characteristics of the section diagram. The contents of the diagram of the spleen were newly interpreted with comparison to the classical texts. Results : The whole shape is described to be a long sword, long stick, bottle gourd, western pear, sole of feet. The height to width ratio was mostly above 4.0:1, but those listed in the 『Bianquemaishunaning』 and 『Hehensancaituhui』 were 1.9:1~1.0:1, most similar to the numbers described in the 『Nanjing』. The shape of the lower part was narrow and sharp, narrow and flat or wide and flat. To analyze through affiliation characteristic, properties of other affiliations could be found. In comparison to classical texts, the diagrams could be found to be affected by 『Nanjing』 and Wangbing's annotations. The diagrams of the spleen should be composed of the spleen, the cord of spleen, and Sangao(散膏); but those which distinguish the spleen and the cord of spleen are twelve. The description of its shape as being similar to sword or sickle seems to come from Lichan's misunderstanding of the diagram in 『Zhenjiujuying』. Those that mention Sangao are merely two and their opinion on the position are different from each other; both did not identify it with the pancreas. Conclusions : In the process of the diagrams differentiating into 30 they were affected by the classical texts. The various changes seem to come from difference in understanding of the content composition of the diagram of the spleen.

Classification of Sole Types of Elderly Women by Scanning Method (스캔법에 의한 노년 여성의 발바닥 유형 분류)

  • Park Jae Kyung;Nam Yun Ja
    • Journal of the Korean Society of Clothing and Textiles
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    • v.29 no.5 s.142
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    • pp.595-606
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    • 2005
  • The purpose of this study is to identify foot shapes of elderly women by classifying their foot types according to the shapes of sole (plantar view) of foot and analyzing the characteristics of each type. The subjects were 321 elderly women over 60 years of age. Their right feet were measured indirectly by using .scanner. The anthropometric measurements consist of 32 items. They were measured during the months of July and August in 2001. The results and discussions of this study are as follows. First, in analyzing sole of the foot of elderly women, the shapes of sole were classified as W-type (wider width for its length and severe alteration), A-type (similar to W-type but with narrower width), D-type (protruded outside) and H-type (even foot width). Second, the most characteristic sole type in elderly women was W-type. In this type, the width was wider for its length, the first metatarsophalangeal protrusion was severe and the toes were gathered at the center. Hopefully, understanding the shapes of sole and characteristics of each sole type will help to develop suitable shoes for elderly women.

A Study on the Late 19th century Children's Costumes and Games of Genre Paintings by Jungeun Kim (19세기말 풍속화가 기산 김준근이 그린 삽화 속 어린이 놀이문화와 복식에 관한 연구)

  • Choi, Eunjoo
    • Fashion & Textile Research Journal
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    • v.18 no.3
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    • pp.289-300
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    • 2016
  • This study surveys children's costumes and games from the 11 Genre paintings by Junkeun Kim in the book "Korean Games(Stewart Culin 1858-1929)". The character of the general dress-costumes, games and the culture of life from the late $19^{th}$ century in genre painting of Junkeun Kim are as follows. The study results on the games are as follow. The boy's games are kite-flying, spinning tops, playing shuttlecock with the feet, blindman's buff, yut("Four-Stick Game"). Girl's games are seesaw with board, blindman's buff, marbles. Combined games are mount shoulder, sledge, tightrope walking for men with boy. The strengthen one's body type were seesaw with board, tightrope walking, the compete score type were playing shuttlecock with the feet, marbles and the multi complex type were yut("Four-Stick Game"), kite-flying. Through genre painting in the $19^{th}$ century we know a boy's 'Jeogori 'and 'Ba-ji' were similar to a modern man's and boy's 'Hanbok' with a traditional method of wearing. We believe that the originality of a traditional costume was an unchangeable characteristic. Girl's 'Jeogori' and 'Chi-ma' changed in length and width, and method of wearing; however, the basic shape did not change. The analysis for artist's genre painting which was ordered by a foreigner and the late of $19^{th}$ century's children's costume and game of life culture is useful to match the counters and show how to wear a modern Korean costume used to understand the 'Hanbok' and establish a costume of life.