• 제목/요약/키워드: Curved Line

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Quantitative Growth Analysis of White and Reddish Sword Bean

  • Park, Sun-Young;Doo, Hong-Soo;Song, Seung-Kyoung;Ryu, Jeom-Ho
    • 한국작물학회지
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    • 제46권2호
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    • pp.89-94
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    • 2001
  • Sword bean belongs to the subgenus Canavalia in the genus Canavalia. White and reddish varieties in sword bean were tested to obtain the basic information for improving the yield, quality, and cultural environments through the quantitative growth analysis. Growing plants were sampled at intervals of 10 days from 20 days after sowing. Whole plant weight increased during the period of 11-20 days after sowing in both varieties. The weight of each organ between two varieties increased similarly except leaf area. Whole plant weight changed more close to pod weight than any other characters. The leaf areas of both varieties increased from 50 days after sowing, var. white displayed S type curved line but var. reddish displayed slow S type curved line. The SGR of whole plant weight in both varieties had 3 maxima and 2 minima, 3 maxima and first minimum were shown at the same period but the second minimum was shown at different period. Both varieties showed bimodal curved line. All SGR of each organ and leaf area were shown the 2 maxima and 1 minimum in both varieties. The changes of SLA and LAR were not remarkable between two varieties but these were united together with the maximum of whole plant weight and root weight. ULWR and ULWR were shown similar in both varieties. Reddish variety was more prosperous in early growth stage than white variety because SLA, LAR and LWR were high. In surplus weight, both varieties increased rapidly during the period of 111-120 days after sowing that was applicable to the maximum SGR of pod weight. Surplus weight of var. white increased markedly during the same period comparing those of var. reddish.

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지구 곡률이 고려된 LOB를 이용하는 NLSE 기반의 고정형 신호원 위치추정 (Stationary Emitter Geolocation Based on NLSE Using LOBs Considering the Earth's Curvature)

  • 박병구;김상원;안재민;김영민
    • 한국통신학회논문지
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    • 제42권3호
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    • pp.661-672
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    • 2017
  • 본 논문은 지구를 구체(Sphere)로 모델링하고, 좌표계 변환 없이 위경도 좌표계에서 지구 곡률이 고려된 곡선형태의 신호방향선(Line Of Bearing, LOB)을 이용하여 비선형 최소제곱법(Nonlinear Least Squared Estimator, NLSE)으로 고정형 신호원의 위치를 추정하는 방법을 소개한다. 그리고 추가적으로 지구를 타원체(Ellipsoid)로 모델링하여 위치추정성능을 개선하는 방법을 제안한다. 모의실험을 통해 지구 곡률이 고려된 곡선 LOB를 이용하는 NLSE 방법이 기존 삼각측량법(Triangulation Method) 대비 우수한 위치추정 성능을 가짐을 보이고 타원체 모델을 이용하여 위치추정성능을 개선함을 보인다.

선형 배열 롤 셋 공정의 조선 산업 적용에 관한 연구 (A Study on the Application of Line Array Roll Set Process to Shipbuilding Industry)

  • 심도식;양동열;정성욱;한명수
    • 한국소성가공학회:학술대회논문집
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    • 한국소성가공학회 2009년도 추계학술대회 논문집
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    • pp.289-292
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    • 2009
  • The line array roll set process, as one of many kinds of incremental forming processes, is a continuous process in which a flat metal plate is formed into a singly or doubly curved plate through successive passes of forming rolls. It was found that the curvature level of the formed plates in the previous study was well over the curvature required in shipyards. This fact shows that the LARS method has considerable potential for shipbuilding applications. In a shipbuilding yard, hull forming is an important fabrication process in which flat plates are deformed into singly or doubly curved plates. The major purpose of the present study is to estimate experimentally the general applicability of the line array roll set process for the manufacture of ship hull plates. In this study, the target shapes are selected through investigation of the shape classification of ship hull plates that comprise a certain vessel. Forming processes for twisted shapes are analyzed with the finite element method (FEM). Finally, the results of experimental work for two types of target shapes are presented.

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훈데르트바써의 작품세계와 특성에 관한 연구 - 회화작품의 건축구현을 중심으로 (A Study on Characteristics of Hundertwasser - Focus on his paintings and Architecture Projects -)

  • 정유진;김홍섭
    • 한국실내디자인학회논문집
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    • 제20권6호
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    • pp.97-104
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    • 2011
  • Art has always been a witness to its time. The art of our century has lived through two world war. In that time Friedensreich Hundertwasser was born to a half Jewish family in Vienna in 1928. He lived and died as a painter, architect, designer, ecologist, writer, innovator... etc. He was impressed form Gustav Klimt, who pioneered the Viennese Secession which was the Austrian expression of the Art-Nouveau mouvement and inspired by the works of Egon Schiele from an early date. His style as an architect was heavily influenced by Antonio Gaudi and some of the Jugendstil architects. Although his architectural work is comparable to Gaudi in its biomorphic forms and use of tile, but is currently renowned for his unique styling. His character as follows; First, Bold color - His use of color is bold, and he has a strong sense of which color work well together. Second, Curved line & Spiral - It's the primary shapes in his works against the tyranny of ugliness and the iron rule of its straight line. Spiral reveal as a transautomaism. Third, Harmony with nature - His work is the creator of beauty, of nature of harmony, peace of joy, against the contradictions of our post-industrial society. He represented these various characteristics in his works. Hundertwasser first achieved notoriety for his boldly-colored painting, he is more widely renowned today for his revolutionary architectural designs.

에디토리얼 패션사진에 나타난 성별에 따른 젠더 이미지 표현 (Expressions of Gender Images According to Sex in Editorial Fashion Photography)

  • 최나리;우주형
    • 복식
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    • 제57권2호
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    • pp.143-154
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    • 2007
  • This study's purpose is how express gender image according to sex in editorial fashion photography. This study's objectives are the women's magazine Vogue, Harper's Bazaar and man's magazine GQ, Esquire published 2000-2005 within the country. The photography was classified with established a standard based on the precede studies. The photo is classified Gender image according to dress and its ornaments, model character and atmosphere by Sex Expression of femininity woman has exposure of body parts and emphasizing thin eyebrows and red lips, soft and mild image, modest and static pose. Man expressed femininity used ladylike color and pattern, erotic exposure of body and long hair style. Commonly emphasizing red lips, natural background of flower plant, S-line. For expression of masculinity man and woman are used masculinity item, short hair-style and thick eyebrows. And also emphasize square like chin and shoulder. Specially, woman used direct silhouette to conceal soft body curved line. The expressions of androgynous woman and man are colorful dress and make-up. Woman emphasized male face to show and man expressed soft image through hull of abundant material of fur. All two sex selected method that conceal body curved line and face to express sexless. Hiding characteristics of body and face make indistinct of sex. The gender is affected by atmosphere such as model and illumination background as much as clothes because of the editorial fashion photography.

TPS를 이용한 한국형 고무차륜경량전철(K-AGT)의 성능특성 분석 (Train Performance Characteristics of Korean Rubber-Tired AGT System by TPS)

  • 이동형;구동회
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2005년도 추계학술대회 논문집
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    • pp.799-804
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    • 2005
  • In this work, the characteristics of train performance of Korean rubber-tired AGT system(K-AGT) are evaluated by using TPS(Train Performance Simulation) and these results are compared to those of other LRT(Light Rail Transit) systems. The performance characteristics of K-AGT was analyzed by comparing the scheduled speed and the energy consumption in case of station interval change and rail track condition change in, the scheduled construction line. In the scheduled construction line, scheduled speed of K-AGT was no difference with other systems and energy consumption was less than other LRT's. In case station intervals are increased, scheduled speed of K-AGT shows similar increasing rate and in curved and graded track conditions K-AGT has no difference in scheduled speed with other systems. As a simulation result by track condition change, when the track which is smaller than curved line of 250m dominates more than $50\%$ in whole track, K-AGT is similar to other systems to the point of scheduled speed and there is advantage in energy consumption.

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직사각형 단면을 갖는 $90^{\circ}C$ 급곡관 내의 3차원 난류유동에 관한 실험적 연구 (Experimental Study of Three-Dimensional Turbulent Flow in a $90^{\circ}C$ Rectanglar Cross Sectional Strongly Curved Duct)

  • 맹주성;류명석;양시영;장용준
    • 대한기계학회논문집
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    • 제15권1호
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    • pp.262-273
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    • 1991
  • 본 연구에서는 벽면에서의 압력은 압력측정 정치를 제작하여 측정하였으며 평 균유동 및 난류량들은 열선 유속계(hot wire system)을 사용하여 측정하였다.

약한 광중합과 열경화를 이용한 곡면 미세 표면주름 제작 (Fabrication of Microscale Wrinkles on a Curved Surface Using Weak-Polymerization and Thermal Curing Process)

  • 양정호;조지준;박상후
    • 한국정밀공학회지
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    • 제33권10호
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    • pp.875-880
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    • 2016
  • In this study, we proposed an effective and simple way to directly generate wrinkle patterns on a curved surface. A curved surface was prepared using a 3D printer and an UV (Ultraviolet)-lighting system was utilized to weakly polymerize the UV-curable thin resin layer coated on the surface, resulting in a gradient of material properties in the layer thickness. Subsequently, a thermal curing process was conducted to generate microscale wrinkles by compressive forces that were generated during complete curing. Wrinkle shapes from 5, 15, 25 sec of UV-light exposure were compared. With increasing UV-exposure, the line-width of wrinkles became thicker due to much higher strength of skin zone. The results indicated that the proposed fabrication process could be utilized for surface modification in diverse research fields.

현대 남성 드레스 셔츠에 나타난 젠더 밴딩 디자인 특성 (Characteristics of Gender-bending Design in Contemporary Men's Dress Shirts)

  • 한솔비;이연희
    • 한국의상디자인학회지
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    • 제14권2호
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    • pp.157-169
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    • 2012
  • The aim of this study is to serve as a stepping stone to outlook changes in men's fashion based on gender characteristics and the design proposal as a reference to shirts design for men's wear brands. This study is a theoretical work extracted from related books, dissertations, and web- resources referenced. Research method is as followed. It is based on the four main collections from S/S 2001 to S/S 2010 and selected designer brands among the most influential foreign men's fashion designer brands which have show cased their collections of 19 seasons in the last 10 years. These are what the study has found out. Firstly, the shoulder-line which used to be straight and hard in men's dress shirt has changed to comfortable curved line which falls from the shoulder to sleeve. Silhouettes were mainly shaped to an hourglass or slim silhouette representing the body curve line. Unlike how the masculine beauty was emphasized through the straight line, men's dress shirts nowadays used curved line for softness. Secondly, there were various designs with decorations added to the basic structure, making it no different from women's blouse and blurring the line between men's and women's fashion. Thirdly, colors were normally in bright ones. Tones were often in pale tone which used to be the women's color. Also choosing shades of yellow or red was a remarkable change in men's wear. Fourthly, through varying patterns and texture there were many shirts that gave clear visual effect. There were approximately equal portions of patterns with feminine image like natural patterns, abstract patterns, or small patterns and patterns with masculine image.

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컨테이너 제작을 위한 용접선 추적에 관한 연구 (A Study on the Seam tracking for container box manufacture)

  • 표종우;안병원;엄한성;남택근
    • 한국정보통신학회:학술대회논문집
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    • 한국해양정보통신학회 2005년도 추계종합학술대회
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    • pp.195-199
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    • 2005
  • 현재 조선 산업의 대형 블록제작 용접공정에서 용접용 캐리지(Carriage)를 이용한 반자동 용접 방법이 많이 사용되고 있다. 여기서의 캐리지는 수평 필렛 용접에서 용접 토치를 이송해 주는 장치이지만, 로봇 용접방법처럼 용접선을 추적하는 기능이 없어 곡선용접에는 사용이 불가능하며, 단순히 직선용접에만 사용할 수 있다. 또, 용접선을 추적하는 기능이 없기 때문에 직선용접에서도 용접오류가 자주 발생하여 이를 수정하는데 많은 시간과 비용이 소요되고 있다. 이에 본 논문에서는 현재 사용하고 있는 캐리지에 스트레인 게이지를 이용한 용접선 추적 센서와 80C196KC 마이크로컨트롤러를 추가 설치하여 직선 및 곡선용접에서 용접선을 자동으로 추적할 수 있는 시스템을 개발하여 사선 모형 및 컨테이너 박스 모형 용접선을 제작하여 추적현상에 대해 고찰하여 보았다.

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