• 제목/요약/키워드: point-patterns

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한국 전통문양의 이미지 형상화 소고 (A Study on the Figuration of Korean Traditional Pattern Images)

  • 장수경
    • 한국의류학회지
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    • 제22권8호
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    • pp.1001-1010
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    • 1998
  • The purpose of this study was to investigate the images and characteristic formative elements of Korean traditional patterns. The Korean pattern image could be interpreted into visual elements of design based on the images, the characteristic formative elements of Korean traditional patterns, and their relationships. Fourteen patterns selected from 5 groups of Korean patterns were used as stimuli. An image evaluation using a 2-point sementica scale of 19 bipolar adjectives, and an impression evaluation of which results were presented by visual drawing using lines and shapes were carried out. The data were analyzed by correspondence analysis and cluster analysis. The major findings are as follows; 1. Fourteen patterns and 19 adjectives were marked on a perception map composed of two (x and y-) axes. The bipoles of x- and y axes were soft-hard and splendid-artless, respectively. 2. Four clusters semerged to account for the dimensional sturucture of 14 patterns and 19 adjectives. These were splendid image, soft image, individualistic image, and sophisticated image. However there was no pattern which belonged to the cluster, sophisticated image. The Korean pattern image was founded to be better related to the kind of patterns than the type of patterns. 3. The characteristic formative elements obtained from the impression test were contour of motif, repeated line or shape, various curved lines, and decorative elements. 4. The splendid image was related to Bongwhang patterns and detailed line and complexity. The individualistic image was related to the abstractive form of Bongwhang pattern and the decorative form of Cloud pattern both of which have the characteristics of point-symmetry and abstraction, and Turtle-back pattern. In this case, the related charac-teristic formative element was identified to be repeated lines. The soft image was related to Moran, Cloud, and Taegeuk patterns. The related characteristic elements were various types of curved lines, decorative elements, and rounded contours.

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끓는점 오름 현상에 대한 학생, 예비교사, 화학교사의 개념 분석 (Conception Analysis of Students, Pre-service Teachers and Chemistry Teachers on Boiling Point Elevation)

  • 윤희숙;정대홍
    • 한국과학교육학회지
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    • 제26권7호
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    • pp.805-812
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    • 2006
  • 본 연구에서는 끓는점 오름에 대한 고등학교 화학 교과서의 기술 양식과 고등학생, 예비교사, 고등학교 화학교사의 이해에 대하여 조사하였다. 6차와 7차 교육과정에 근거하여 개발된 고등학교 화학 II 교과서를 분석하였고 고등학생과 예비교사, 화학교사의 개념은 설문지를 통해 얻었다. 끓는점 오름의 원인에 대한 교과서의 설명 유형은 '표면의 용매 입자수의 감소', '용매-용질간의 인력', 그리고 '표면 입자수의 감소와 용매-용질간의 인력'등의 세 가지 유형으로 분석되었다. 개념조사 결과 '용매-용질간의 인력'을 끓는점 오름의 원인으로 인식하는 학생과 예비교사, 화학교사의 비율이 높았다. 대상자들은 끓는점 오름을 설명하기 위하여 엔트로피 개념보다 엔탈피 개념을 선호하는 경향이 있었고, 그 원인을 분석하기 위하여 사후 인터뷰를 실시하였다.

T-scan III 시스템을 이용한 하악 측방운동 시 교합접촉 양상의 분석 (Pattern Analysis of Occlusal Contacts During Lateral Excursion Using T-scan III System)

  • 이상민
    • 구강회복응용과학지
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    • 제29권1호
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    • pp.59-68
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    • 2013
  • 이 논문의 목적은 시간에 따른 교합의 변화를 측정할 수 있는 T-scan system을 이용하여 젊은 성인 남성(33명)정상교합에서의 하악골 측방운동 시 교합접촉 양상을 분석하는 것이다. 정해진 하악 위치에서의 교합접촉이 아닌, 기능적 범위 내에서 비작업측 교합이개 시점에서의 교합접촉 양상을 분류하고 분류된 군 간에 교합이개 시간, 측방유도 시 견치가 담당하는 교합력의 비율, 측방운동 시 가해지는 교합력 등을 비교하였다. 연구 결과 기존의 분류와는 다른 측방접촉들이 존재하였고 군기능 유도가 우세하게 나타났다. 교합이개 시간, 측방유도 시 견치가 담당하는 교합력의 비율, 측방운동 시 가해지는 교합력 등에서 군 간의 유의한 차이를 나타내었다. T-scan system은 교합접촉 양상을 분류하고 교합력, 교합이개 시간, 견치가 담당하는 교합력 비율 등의 항목을 비교 분석하는데 있어서 유용한 도구이다.

2D 및 3D 패턴 활용 둥근어깨 교정보조기 착용감 비교 (Comfort Evaluation of Posture Braces for Rounded Shoulders Using 2D and 3D Patterns)

  • 오미령;김남임;박진아
    • 패션비즈니스
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    • 제25권3호
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    • pp.71-89
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    • 2021
  • The purpose of this study was to design posture braces for rounded shoulders by examining characteristics of incorrect postures of rounded shoulders. The review of information in literature on rounded shoulder postures, correction exercise methods, and posture correction devices, has prompted this study to determine the design and material of a proper posture brace for rounded shoulders. In order to develop the pattern of a posture brace for rounded shoulders for women, the study carried out a comfort evaluation of the braces based on the 2D patterns through drafting method by utilizing the body measurements and relational formulae associated with the major body measurement such as bust circumference and on the 3D patterns of the brace which were obtained from 3D human model of women in their early 20s in Korea. Differences in angles were noted when 2D and 3D patterns of shoulder posture braces were compared. The side neck point was relocated farther outside in the 3D pattern to allow additional flexibility in the back-neck area, and the shoulder band was lowered by 14.8°, increasing armhole area comfort. The upper hemline of the front panel was found to rotate upward at an angle of 22.0° as the underarm point of the 3D pattern moved upwards than the underarm point of the 2D pattern, which enhanced comfort in the abdomen area. The 3D designs of shoulder posture brace was preferred in this study, as they significantly improved comfort while conducting fit evaluation compared to the 2D patterns of shoulder posture brace.

과학기술발전(科學技術發展)패턴의 추출(抽出)을 위한 계량적(計量的) 분석(分析) (Quantitative Approaches for Classification of the Patterns on Scientific and Technological Development)

  • 권철신
    • 대한산업공학회지
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    • 제7권2호
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    • pp.27-41
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    • 1981
  • The purpose of this study is to extract and classify the general patterns on scientific and technological development by quantitative approaches. Indicators used for this pattern classification amounted to a total of 39. what is more, these indicators were set up with the recent data for the first half of the 1970's mainly, and 141 nations were selected as the sample of the analysis. 7 aspects which prescribe the scentific and technological activities were established, and so 3 patterns of the S & T development were extrected by means of a "two-dimensional cross section" among them. (1) A pattern showing the trend of the exponential curve from the point over a certain level (in this study, it is defined as "Threshold Valued"). (2) A pattern in which elasticity of the exponential curve is gradually reduced from the point over the threshold value. (3) A pattern not showing any trend, but forming a large variance.

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팔 유형 특성에 따른 소매 적합성 연구 (A Study on the Sleeve Fitness According to Characteristics of Arm Types)

  • 이정란
    • 한국의류학회지
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    • 제27권2호
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    • pp.219-228
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    • 2003
  • The purpose of this study were to examine the characteristics of arm types proposed in the previous study and to present sleeve patterns according size and shape of 4 arm types. 31 direct and indirect items were measured. The subjects for this study were 132 females of twenties. The results were as follows. 1. All of the direct measurements showed significant difference by the arm types. especially at the front armhole part. Such a.: the items of arm gradients, armhole sizes belong to the indirect measurements made clear difference also. 2. By the discriminant analysis, 9 items including underarm length, front armhole girth, upper arm girth, degree of elbow point-wrist point discriminated arm type by the hit ratio of 90.4% Item related to shape of arm rather than size made a sharp distinction. 3. Through the examination of existing patterns and wearing tests on the subjects among 4 groups, sleeve patterns classified by the arm type were suggested.

2차원 패턴의 볼록 헐 알고리즘 (A Convex Hull Algorithm for 2D Patterns)

  • 홍기천;오일석
    • 한국멀티미디어학회논문지
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    • 제4권4호
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    • pp.363-369
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    • 2001
  • 본 논문에서는 2 차원 패턴을 위한 볼록 헐(convex hull) 알고리즘을 제안한다. 알고리즘은 크게 후보 볼록점 추출과 최종 볼록점 추출의 두 단계로 나된다. 첫 번째 단계에서는 볼록 헐의 볼록점이 될 수 없는 점들을 최대한 간단한 연산을 사용하여 제거함으로써 속도의 향상을 기한다. 두 번째 단계에서는 첫 번째 단계에서 구해진 후보 볼록점을 대상으로 최종 볼록 헐을 구한다. 이 방법은 매우 간단한 연산으로 구성되어 있기 때문에 수행 속도면에서 향상을 가져왔다. 실험 결과, 본 논문의 방법이 기존에 사용되던 두 개의 볼록 헐 알고리즘보다 2배내지 3배의 빠른 수행 속도를 보였다.

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한국형 고속전철(KTX) 방사패턴에 관한 연구 (A study on patterns of propagation for high speed train(KTX))

  • 구동회;김재철;박태원;문경호
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2001년도 춘계학술대회논문집
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    • pp.836-842
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    • 2001
  • The more sophisticated patterns of propagation model is presented in this paper, which includes three different source characteristics. The spherical, cosine and dipole radiation characteristics compared and sound event level and the maximum sound level are calculated by experiment and calculation. It is shown that patterns of propagation has dipole characteristics for low speed range(below about 150km/h) at electric multiple system. We know that push-pull high speed system(maximum speed: 300km/h) has cosine characteristics of noise propagation. For this purpose, We conduct the experiment of noise and know the empirical formula of noise level and radiation coefficient K. This model of simulation is conducted through point source array model at wheel/rail contact point by using program and experimental formula. We can guess prediction of profile, flat and wear of wheel by above modeling in near field.

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온라인 FPS 게임의 치팅 유형과 대응 방안에 관한 연구 : 인도네시아 포인트 블랭크 사례를 중심으로 (A Study on Cheating Patterns in Online FPS Games and their Countermeasures : By the Case of Point Blank in Indonesia)

  • 임성진;이대현
    • 한국게임학회 논문지
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    • 제11권2호
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    • pp.81-91
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    • 2011
  • 온라인 게임 산업의 성장과 함께 해킹 툴의 사용은 날로 증가하고 있다. 해킹 툴은 프로그래밍 지식이 없는 유저들이 해킹과 동일한 기능을 사용할 수 있도록 해주기 때문에 온라인 게임서비스에 있어 많은 문제점을 야기한다. 특히, P2P 네트워크 기반의 FPS 게임은 해킹에 대한 취약성을 가지고 있다. 본 논문은 인도네시아 Point Blank의 사례를 통해 FPS 게임의 치팅 유형을 분석하고, 게임 업체들이 해킹에 대한 효과적인 대처 능력을 갖출 수 있도록 대응방안의 우선순위를 제시하였다.

The Characteristics of Electrocardiography Findings in Left Ventricular Remodeling Patterns of Hypertensive Patients

  • Choi, Sun Young
    • 대한의생명과학회지
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    • 제21권4호
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    • pp.208-217
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    • 2015
  • The exact diagnosis of left ventricular hypertrophy (LVH) is very important in the treatment of hypertension. The purpose of our study is to determine the relationship between left ventricular remodeling patterns and electrocardiography (ECG) findings in hypertensive patients. We divided 137 patients into four groups according to left ventricular mass index (LVMI) and the relative wall thickness: normal, concentric remodeling, concentric hypertrophy, eccentric hypertrophy. LVH on the ECG was defined by three ECG criteria: Sokolow-Lyon voltage criteria, Cornell voltage criteria and Romhilt-Estes point score. LVH on the echocardiography was defined by LVMI. The prevalence of ECG LVH was increased in concentric hypertrophy and eccentric hypertrophy group. The QRS voltages by Sokolow-Lyon voltage criteria (r = 0.494, P = 0.002) and Cornell voltage criteria (r = 0.628, P < 0.001), and Romhilt-Estes point score (r = 0.689, P < 0.001) were positively correlated with LVMI. Also, the QRS voltages and point scores were significantly increased in the concentric hypertrophy and eccentric hypertrophy group with increased LVMI. The QRS voltage and Romhilt-Estes point scores were positively correlated with LVMI. The QRS voltages and Romhilt-Estes point scores were also increased in the left ventricular remodeling groups with increased LVMI.