• 제목/요약/키워드: Image formation theory

검색결과 26건 처리시간 0.026초

TEM 관련 이론해설 (6): 투과전자현미경의 고분해능 영상이론: 결맞음 (1) (Theory of High Resolution TEM Image Formation: Coherence (1))

  • 이확주
    • Applied Microscopy
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    • 제35권3호
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    • pp.105-112
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    • 2005
  • 고분해능 TEM 영상 이론의 결맞음 조사에서의 결맞음에 관한 개념을 소개하였다. 현미경에서 부분 결맞음 파동으로 인한 transfer function과 envelope의 발생을 설명하고 현미경의 분해능과 관련된 passband와 Scherzer 초점 조건을 소개하였다.

집적결상된 3차원 영상의 중복 및 누락 왜곡에 대한 연구 (Analysis of image distortion in 3D integral imaging display)

  • 서장일;차성도;신승호
    • 한국광학회지
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    • 제15권3호
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    • pp.234-240
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    • 2004
  • 집적결상법으로 3차원 영상을 재생하는 경우 재생영상의 일부분이 중복 또는 누락되는 왜곡현상이 나타난다. 본 논문에서는 이러한 왜곡현상의 원인을 분석하고 정량적 해석을 시도하였다. 집적결상에서 사용 가능한 몇 가지 기본적인 변수들을 도입하여 왜곡을 정량화하고 최소화될 조건을 조사하였으며, 그 특성을 실험을 동해 확인하였다.

국제매매계약(國際賣買契約)의 성립(成立)에 관한 비교법적(比較法的) 연구(硏究) - CISG와 UNIDROIT 원칙(原則)을 중심(中心)으로 - (A Comparative Law Study on the Formation of Contracts for the International Sale)

  • 배준일
    • 무역상무연구
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    • 제12권
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    • pp.85-106
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    • 1999
  • To the extent that CISG and UNIDROIT Principles address the same issues, the rules laid down in the latter are normally taken either literally or at least in substance from the corresponding provisions of the former. Nevertheless, we may find cases where the latter depart from the former. The purpose of this paper is comparison of the two instruments, especially in part of contract formation. The result of this paper shows the fact that in the chapter of UNIDROIT Principles on formation provisions are included on the manner in which requirements that an offer and an acceptance must meet are more comprehensive, and in result a contract may be concluded more easily.

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의복범주가 젊은이의 대인지각에 미치는 영향 -유행성 및 착용자의 체형과 관련지어- (The Effect of Garment Category, Fashionability and Wears' Body type on Impression Formation)

  • 김재숙;김희숙
    • 한국의류학회지
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    • 제16권4호
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    • pp.371-377
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    • 1992
  • The purposes of the study were 1) to extend the cognitive categorization theory in an attempt to explain the of garment category, fashionability, and wearer's body types on impression formation, and 2) to find out structures of wearer's impressional dimension and wearer's professional image. The research included a quasi-experiment and survey. The experimental design was a $2^{3}$full factorial design of 3 independent variables. The experimental materials developed for the study were a set of stimuli and a response scale. The stimuli consisted of 8 drawings made by 3 independent variables (garment category, fashion level, wearer's body type). Result were as follows: 1) Garment category, fashionability and wearer's body type had significant effects on impression of the 5 factors-evaluation, potency, appearance, sociability and good-bad, with exception of wearer's body type which was nonsignificant to the potency factor. 2) Garment category was most effective on the evaluation and the potency. However wearer's body type was most effect on the appearance factor and fashionability variable was most effective on the good-bad factor. It was conclued that the results supported the cognitive categorization theory on impression formation and a cognitive categorization hypothesis of clothes.

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색과 문양의 감성 이미지 효과 - 간호사 복을 대상으로- (Image Perception of Nurses' Uniforms according to Colors and Motifs)

  • 김재숙;이희승
    • 복식문화연구
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    • 제12권3호
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    • pp.379-391
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    • 2004
  • The purpose of this study was to examine the effects of uniform's color and motif on nurse's impression formation. The experimental design was 5×3×2(uniform color×motif ×perceiver's gender) factorial design with a between-subjects design. The experimental materials developed for the study were a set of stimuli and a response scale. The subjects were 738 undergraduate students of Daejon and Chungnam province. The SPSS package was used for data analysis which includes factor analysis, two-way ANOVA, Duncan's multiple range test, and Cronbach's α to measure the reliability. Results were as follows; The image or the stimulus was consisted of the 4 different dimensions(evaluation, sociability, ability, potency). All the independent variables showed some significant impression effects on selected dimensions. The motif and perceiver's gender also showed significant main effects as well as some interaction effects with the color variable on some selected impression dimension and the impression effects of the three variables in relationship to perceiving nurses' images. On a conclusion, these results supported the Gestalt theory.

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Spiral Arm Features in Disk Galaxies: A Density-Wave Theory

  • Kim, Yonghwi;Ho, Luis C.
    • 천문학회보
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    • 제44권1호
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    • pp.34.2-34.2
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    • 2019
  • Several observational results show a tighter pitch angle at wavelengths of optical and near-infrared than those that are associated with star formation, which is in agreement with the prediction of the density wave theory. In my recent numerical studies, the dependence of the shock positions relative to the potential minima is due to the tendency that stronger shocks form farther downstream. This causes a systematic variation of the perpendicular Mach number, with radius and makes the pitch angle of the gaseous arms smaller than that of the stellar arms, which supports the prediction of the density-wave theory, independently. However, some observations still give controversial results which show similar pitch angles at wavelengths, and there is no statistical study comparing observations and numerical models directly. By analyzing optical image of disk galaxies in the Carnegie-Irvine Galaxy Survey (CGS), I measured the physical values of stellar and gaseous arms such as their strength, length, and pitch angles. For direct comparison with numerical results, I analyzed more than 30 additional numerical models with varying the initial parameters in model galaxies. In this talk, I will present results both of observational and numerical samples and discuss the physical properties of spiral structures based on the density-wave theory.

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TEM 관련 이론해설(7): 투과전자현미경의 고분해능 영상이론: 결맞음 (2) (Theory of High Resolution TEM Image Formation: Coherence (2))

  • 이확주
    • Applied Microscopy
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    • 제36권1호
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    • pp.1-6
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    • 2006
  • 고분해능 TEM 영상 이론의 결맞음 조산에서의 결맞음에 관한 개념을 소개하였다. 현미경에서 부분 결맞음 파동으로 인한 transfer function과 envelope의 발생을 설명하고 현미경의 분해능과 관련된 passband와 Scherzer 초점 조건을 소개하고 결맞음 특성에 관하여 소개하였다.

Kepler의 망막 상 이론 형성 과정에서의 과학적 문제 발견과 귀추적 사고 (Kepler's Scientific Problem Finding and the Abductive Reasoning in his Discovery of the Retinal Image Formation)

  • 김영민
    • 한국과학교육학회지
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    • 제26권7호
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    • pp.835-842
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    • 2006
  • 이 연구의 목적은 시각에서의 망막 상 이론을 세우는 데 있어 Kepler가 어떻게 과학적 문제를 발견하고 그의 이론 형성 과정에서 어떻게 귀추적 사고를 하였는가를 조사하고, 그 분석 결과를 통해 과학에서의 창의성 교육을 위한 시사점을 얻는 것이었다. 관련 문헌들의 심층적인 분석을 통해, Kepler의 망막 상 이론에서의 과학적 문제 발견은 당시 시각 이론에 대한, 그의 정확하고 적절한 광학적 지식을 바탕으로 한 비판적 분석으로부터 이루어졌으며, 그는 새로운 이론을 세우는 과정에서 이미 알고 있는 구면 렌즈에서의 광학적 현상을 눈의 메카니즘 설명에 도입함으로써 귀추적 사고의 과정을 거쳤음이 밝혀졌다. 이러한 결과들로부터 과학 창의성 교육을 위한 시사점이 다음과 같이 도출되었다. 첫째는, 과학 창의성교수 자료의 개발에 있어서 프로그램 속에 Kepler의 과학적 문제 발견과 같은 상황이 제시될 필요가 있다는 것이며, 둘째로는, 적절하고 정확한 과학적 지식이 과학적 문제를 발견하고 가설을 형성하는 데 있어 필수적이라는 것이 지도되어야 하고, 마지막으로는, 학생 스스로 성공적인 문제 해결 경험을 가질 수 있도록 하고, 그것이 그들로 하여금 새로운 과학적 문제를 발견하는 데까지 이르도록 프로그램을 구성해야 한다는 것이다.

The Antecedents and Consequences of Korean Brand Equity in Myanmar: Focusing on Country of Origin Image and Advertising Awareness

  • Oo, Thunt Htut;Jung, Sung-Hoon;Lee, Keon-Hyeong
    • Journal of Korea Trade
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    • 제25권3호
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    • pp.87-115
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    • 2021
  • Purpose - Brand equity has emerged as an indispensable marketing tool for firms engaging their business in developing nations. This study proposes that the country of origin image and advertising will affect the Korean brand equity formation, which leads to repurchase intention of Korean brands. In the study, attitude factors are applied in brand equity theory to predict repurchase intention of Korean brands. Cognitive brand equity, such as brand awareness, brand association, brand image and attitudinal brand equity, such as perceived quality and brand loyalty are considered with regards to their attitude towards the Korean brand. Design/methodology - A total of 178 Myanmar consumers out of 200 participants who have used Korean brands answered the survey and data were analyzed through SmartPLS 3.3.2 version. PLS-SEM is considered a more suitable analysis to pin down and evaluate the cause-effect relationship among all of the constructs with relatively complex models. Findings - Our results substantiate that the country of origin image positively affects brand awareness, brand associations, and brand image and advertising awareness positively affects brand awareness. Brand awareness gives positive effect only on brand association, which sustains a positive effect on brand image and brand loyalty. Brand image only has a positive effect on perceived quality, which again affects repurchase intention and brand loyalty. Brand loyalty also shows a positive effect on repurchase intention. Originality/value - Brand equity dimensions were viewed as cognitive and attitudinal outcomes of brand equity which affects repurchase intention. The drivers of brand equity were considered from the perspective of country of origin image that firms cannot control or mange, and advertising awareness which firms can control and manage. The findings also explored the relationships between cognitive and attitudinal brand equity.

간호학생의 간호관 형성과 변화양상 (Formation and Changing Pattern of Nursing Perspectives of Nursing Students)

  • 조결자;송미령
    • 간호행정학회지
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    • 제3권1호
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    • pp.17-35
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    • 1997
  • The purpose of this study was to identify the formation and changing pattern of nursing perspectives of nursing students. 176 subjects were composed of 118 nusing students and 58 non-nursing students. The data were collected through openended question and structured questionair. The result were as follows : 1. Nursing perspectives were classified six categories(nature of nursing, image of nursing, component of nursing, meaning of nursing, range of nursing, function of nursing) 2. As increased major lecture period, the item of ${\lceil}$Nursing is helping${\rfloor}$ was changing positively. 3. As incresed clinical practice, the student's perception about items of ${\lceil}$Nursing has gap between theory and practice${\rfloor}$, ${\lceil}$Nursing is helping${\rfloor}$ was increased. 4. As increased self-concept, the students were considered the item of ${\lceil}$Nursing is action that giving knowledge and helping to effective coping for individual and group${\rfloor}$ significantly. 5. 1) The students having religion were considered the item of ${\lceil}$Nursing must doing politely${\rfloor}$ significantly relatively to the students don't have religion. 2) The students having experience of admission to hospital in their or their family had negative nursing perspectives. 3) Against the students who select nursing major for his high school perfoermonce and advice of their significant others, the students who select nursing major for service had positive nursing perspectives.

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