• Title/Summary/Keyword: three-dimensions

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Dimension Measurement for Large-scale Moving Objects Using Stereo Camera with 2-DOF Mechanism (스테레오 카메라와 2축 회전기구를 이용한 대형 이동물체의 치수측정)

  • Cuong, Nguyen Huu;Lee, Byung Ryong
    • Journal of the Korean Society for Precision Engineering
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    • v.32 no.6
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    • pp.543-551
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    • 2015
  • In this study, a novel method for dimension measurement of large-scale moving objects using stereo camera with 2-degree of freedom (2-DOF) mechanism is presented. The proposed method utilizes both the advantages of stereo vision technique and the enlarged visibility range of camera due to 2-DOF rotary mechanism in measuring large-scale moving objects. The measurement system employs a stereo camera combined with a 2-DOF rotary mechanism that allows capturing separate corners of the measured object. The measuring algorithm consists of two main stages. First, three-dimensional (3-D) positions of the corners of the measured object are determined based on stereo vision algorithms. Then, using the rotary angles of the 2-DOF mechanism the dimensions of the measured object are calculated via coordinate transformation. The proposed system can measure the dimensions of moving objects with relatively slow and steady speed. We showed that the proposed system guarantees high measuring accuracy with some experiments.

Repurchase intention toward fast fashion brands - Product characteristics, consumer characteristic, and cognitive dissonance - (패스트 패션 브랜드에 대한 재구매 의도 - 제품 특성, 소비자 특성, 인지부조화 -)

  • Jeon, Kyung Sook;Park, Hye-Jung
    • The Research Journal of the Costume Culture
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    • v.23 no.6
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    • pp.940-954
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    • 2015
  • The purpose of this study is to identify the antecedents of repurchase intention toward fast fashion brands. Perceived quality, perceived price, deindividuation, and overly trendy styles, which are product characteristic variables, and fashion innovativeness, which is a consumer characteristic variable, were considered as antecedents. It was hypothesized that product and consumer characteristics influence repurchase intention toward fast fashion brands not only directly, but also indirectly through cognitive dissonance. Data were gathered by surveying university students in Seoul using convenience sampling. Three hundred and fifty-two questionnaires were used in the statistical analysis. SPSS was used for exploratory factor analysis, and AMOS was used for confirmatory factor analysis and path analysis. The factor analysis of product characteristics revealed four dimensions: "perceived quality", "perceived price", "deindividuation", and "overly trendy styles", and the factor analysis of consumer characteristics revealed one dimension. The factor analysis of cognitive dissonance revealed two dimensions, "regrets" and "perceived uncertainty." The hypothesized path test proved that perceived quality, deindividuation, overly trendy styles, and fashion innovativeness influence repurchase intention directly. Perceived price and deindividuation influence repurchase intention indirectly through the factor of cognitive dissonance, which is the perceived uncertainty, indicating the importance of cognitive dissonance. The results indicate effective marketing strategies should be used to decrease consumers' cognitive dissonance, and suggestions for future study are provided.

A study on Shopping Orientation and Information Source by Male's Clothing Benefits (남성집단의 의복추구혜택에 따른 쇼핑성향과 정보원에 관한 연구)

  • 김지현;홍금희
    • Journal of the Korean Society of Clothing and Textiles
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    • v.24 no.1
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    • pp.43-54
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    • 2000
  • The purpose of this study is to help male-clothing companies in investigating male shopping orientation and information source with clothing benefits. As for the method of the research, 428 male consumers were the object for the data of this research. The major results of this study are as follows : 1. The dimensions of clothing benefits were composed of the better appearances, the social status, the personality and the comfort. The dimensions of shopping orientation were composed of pleasant, planned, loyal and individual shopping orientations. 2. The consumer with clothing benefits were classified three groups: better appearances, comfort and careless. In the consumer's classified shopping orientation the group of pursuing personality and better appearances were given higher score at each level, while careless group was given the lowest score at each level of shopping orientation. 3. In case of using information source with classified consumers, the group of personality and better appearances got information through the marketer-oriented information source and neutral information source, the group of pursuing comfort got lots of information through human information source, the group seldom used all information source.

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Social Dimensions of Peer Interaction: Primary School Children Working with English Learning Software

  • Park, Heekyong
    • Korean Journal of English Language and Linguistics
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    • v.3 no.3
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    • pp.453-497
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    • 2003
  • The purpose of this study is to investigate social aspects of young EFL learners' interaction at the computer. Data were taken from the interactions of three pairs of fourth-grade primary school children who worked together on English learning software. Their interactions at the computer were videotaped and then all the talk produced by the students and the utterances emitted from the computer were transcribed. As for the analytical tools, the notion of ‘contextualization cues’ (Gumperz, 1982) and the concept of ‘positioning’ (Davies & Harre,1990) were employed. The analysis reveals that the roles of the students were not tied to a certain position, but rather dynamically changed during the course of interactive work according to the situation at hand. The dynamic changes in their positions were realized through various means; their capability in solving problems, their taking responsibility or assigning it to each other, or cooperation. There were also instances of peer teaching and motivated learning. In addition, the students showed autonomy in their learning activity. These findings suggest that both students in a dyad had their own place in performing task activities, contributing to solving problems and getting benefits from peer interaction. Furthermore, students' working together on English learning software may provide an environment which can promote cooperative attitude and responsibility for learning and enhance motivation and autonomy in their learning process.

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Shear strengthening of reinforced concrete beams with rectangular web openings by FRP Composites

  • Abdel-Kareem, Ahmed H.
    • Advances in concrete construction
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    • v.2 no.4
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    • pp.281-300
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    • 2014
  • This study presents the experimental results of twenty three reinforced concrete beams with rectangular web openings externally strengthened with Fiber Reinforced Polymers (FRP) composites bonded around openings. All tested beams had the same geometry and reinforcement details. At openings locations, the stirrups intercepted the openings were cut during fabrication of reinforcement cage to simulate the condition of inclusion of an opening in an existing beam. Several design parameters are considered including the opening dimensions and location in the shear zone, the wrapping configurations, and the amount and the type of the FRP composites in the vicinity of the openings. The wrapping configurations of FRP included: sheets, strips, U-shape strips, and U-shape strips with bundles of FRP strands placed at the top and sides of the beam forming a fan under the strips to achieve closed wrapping. The effect of these parameters on the failure modes, the ultimate load, and the beam stiffness were investigated. The shear contribution of FRP on the shear capacity of tested beams with web openings was estimated according to ACI Committee 440-08, Canadian Standards S6-06, and Khalifa et al. model and examined against the test results. A modification factor to account for the dimensions of opening chords was applied to the predicted gain in the shear capacity according to ACI 440-08 and CSA S6-06 for bonded Glass Fiber Reinforced Polymers (GFRP) around openings. The analytical results after incorporating the modification factor into the codes guidelines showed good agreement with the test results.

Effect of Involvement on Evaluative Criteria of Clothing Items (관여가 의복품목별 평가기준에 미치는 영향)

  • 조은영;홍병숙
    • Journal of the Korean Society of Costume
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    • v.23
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    • pp.183-196
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    • 1994
  • The purpose of this study is , by analyze the relationship among clothing involvement which is major expanatory variable in the stage of product purchase and consumption, evaluation criteria of housewives, to help to give understanding the concept of involvement and to supply the fundamental data for constructing marketing stratege. The subject of this study was a 510 housewives and the items of study were three such as suit , one piece dress, blouse, skirt , and blue jean, T-shirt. For analyzing data frequency analysis, percent , mean , standard deviation , factor analysis. F-test, Duncan -test , MANOVA, t-test , and Pearson's product -moment correlation coefficient were used. The results are as follows. 1. Clothing involvement was divided into 4 dimensions such as fashion, pleasure, symbolism, and perceived risk. Evaluative criteria had 5 dimensions such as harmony , dignity , practicality , price, and fashion. 2. There was significant difference in the occupaton of working housewives and the expenditure of money on clothing concerning clothing involvement. 3. There was significant difference in items concerning the degrees of importance of each evaluation factor. Harmony was the first important dimension and practicality was the second by housewives. The degree of clothing involvement has a significant positive correlation with the factors of evaluation on each item. Each dimension of clothing involvement had a significant positive correlation with the factors of evaluation.

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Child Care Curricula According to Teacher's Teaching Method Types (보육교사의 교수 신념 유형에 따른 보육과정 운영)

  • Kwon, Yeon-Hee;Choi, Mock-Wha;Rha, Jong-Hay
    • Korean Journal of Human Ecology
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    • v.20 no.2
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    • pp.353-364
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    • 2011
  • The purpose of this study was to examine different child care curricula according to teacher's teaching method types. The subjects of the study were three hundred and fifty-six teachers, who were divided into four groups according to their teaching method: mixed method(type A), child oriented method(type B), teacher oriented method(type C), and beliefless method(type D). The data on the duration of free play and outdoor play time, activities frequently practiced in class, and outside one the playground were collected. The dimensions of child care programs were measured using Moore(1994)'s "The Early Childhood Dimensions of Education Rating Scale". The results of this study were as follows: first, teachers who used child oriented teaching methods gave more free play time than teachers using teacher oriented or mixed teaching methods. Second, teachers using teacher oriented methods showed the closeness and teachers using child oriented methods showed the openness in child care programs. Last, the activities teachers thought were the most important differed according to the teachers' methods even though in actual practice, there was no difference shown.

Effects of Social Capital on the Problem-solving Ability of Rural Communities in the Context of Developers (농촌마을 내 사회자본이 주민주도 문제해결에 미치는 영향 : 업무담당자들의 시각을 중심으로)

  • Kim, Jung-Tae
    • The Korean Journal of Community Living Science
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    • v.25 no.1
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    • pp.51-64
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    • 2014
  • With a shift in the rural development process toward a bottom-up approach, the need to enhance the endogenous capacity of communities has become the core of rural development. In this regard, scholars have paid close attention to social capital to identify ways to facilitate endogenous rural development but focused mainly on relationships between social capital and local environment. That is, few studies have investigated the relationships between social capital and its various dimensions in the context of rural development initiatives. This study examines the effects of social capital on the problem-solving ability of community residents'rural development initiatives and assesses the types of social capital associated with such initiatives to propose optimal path for improving this ability. To distinguish between major dimensions of social capital, a questionnaire was developed by considering various stages of the rural development process. The survey considered a sample of 59 employees from public rural development institutions. According to the results, four paths were significant at the 5% level. Among these four paths, three set common goals. The effective channel was the path [common goals${\Rightarrow}$network${\Rightarrow}$cooperation${\Rightarrow}$problem-solving ability]. The key factor in improving problem-solving skills, the endogenous ability of community residents to facilitate rural development initiatives. The results suggest that governments should strengthen education and training programs to help residents set their common goals.

Effects of Congruence between Orientations and Reward Systems on the Performance of R&D Professiionals (연구원의 경력지향성과 보상의 적합도가 성과에 미치는 영향)

  • 박현아
    • Proceedings of the Technology Innovation Conference
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    • 1999.06a
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    • pp.140-174
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    • 1999
  • This study proposed the model of research describing the positive impact of fitness between career orientations and reward systems on the performance of R&D professionals. To prove the propositions of the model, a questionnaire survey was conducted 204 professionals in 19 R&D research institutes related with electronics and communication industries provided answers for the questionnaire. The results of the survey were summarized in the following. 1) Career orientations of R&D professionals can be categorized into three dimensions : managerial, technical/professional, and project orientation. 2) The rewards consist of four dimensions : financial, social status, job content, and professional reward. 3) The age and tenure of R&D professionals has the negative impact on the project orientation. 4) The education level of R&D professionals has the positive impact on the professional orientation. 5) The sex was found as insignificant variable career orientation. 6) The person with strong prefers social status rewards to other rewards, the professional orientation is prefer to professional rewards, and the project orientation is prefer to job content rewards. 7) For the professionals with professional and project orientation, the congruence with each reward delivered positive impact on job satisfaction, job involvement, and organizational commitment. However it created negative impact on turnover intention and job stress.

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A P-HIERARCHICAL ERROR ESTIMATOR FOR A FEM-BEM COUPLING OF AN EDDY CURRENT PROBLEM IN ℝ3 -DEDICATED TO PROFESSOR WOLFGANG L. WENDLAND ON THE OCCASION OF HIS 75TH BIRTHDAY

  • Leydecker, Florian;Maischak, Matthias;Stephan, Ernst P.;Teltscher, Matthias
    • Journal of the Korean Society for Industrial and Applied Mathematics
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    • v.17 no.3
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    • pp.139-170
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    • 2013
  • We extend a p-hierarchical decomposition of the second degree finite element space of N$\acute{e}$d$\acute{e}$lec for tetrahedral meshes in three dimensions given in [1] to meshes with hexahedral elements, and derive p-hierarchical decompositions of the second degree finite element space of Raviart-Thomas in two dimensions for triangular and quadrilateral meshes. After having proved stability of these subspace decompositions and requiring certain saturation assumptions to hold, we construct a local a posteriori error estimator for fem and bem coupling of a time-harmonic electromagnetic eddy current problem in $\mathbb{R}^3$. We perform some numerical tests to underline reliability and efficiency of the estimator and test its usefulness in an adaptive refinement scheme.