• 한국의상디자인학회지
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• 제9권2호
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• pp.49-57
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• 2007

The purpose of this study was to research the efficient tool of the exclusive fabric simulation in Jacquard Textile CAD system. For performing this design study, it designed the surface design of the abstract images of flowers through EAT Designscope CAD system and simulated the interior fabric. To merchandise the fashion items and see the visual image, these fabric simulations was effected by two or three-dimension modeling through EAT designscope, YongWoo CNI, Alias and so on. The result of this study can be summarized as follows. Before the step of weaving the samples from the surface design works, jacquard fabric design can be done very efficiently to apply the design step of the fabric simulation in CAD(Computer Aided Design). As the usage of the simulation tool in CAD system, jacquard design can be easily feed-back to modify for the right fabrics and produced the various designs in the short running time very efficiently. Therefore, this jacquard design system ultimately can be saved cost and developed the higher value-added goods in more response to consumer demands.

• 한국가스학회지
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• 제15권5호
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• pp.31-36
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• 2011

In this paper, an analytical model of a cantilever beam having a midpoint load is considered for structural optimization and design. This involves creation of the geometry through a parametric study of all design variables. For this purpose, the optimization of the cantilever beam was elaborated in order to find the optimum geometry which minimizes its volume eventually for minimum weight by FEM (finite element method) analysis. Such geometry can be obtained by different combinations of width and height, so that the beam may have the same cross-sectional area, yet different dynamic behavior. So for optimum safe design, besides minimum volume it should have minimum vibration as well. In order to predict vibration, different dynamic analyses were performed simultaneously to identify the resonant frequencies and mode shapes belonging to the lowest three modes of vibration. Next, by introducing damping effects, the tip displacement and bending stress at the fixed end was evaluated under dynamic loads of varying frequency. Investigation of the results clearly shows that only structural analysis is not enough to predict the optimum values of dimension for safe design it must be aided by dynamic analysis as well.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2007년도 춘계학술대회A
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• pp.1288-1293
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• 2007

The present study covers the design and analysis of a thermionic scanning electron microscope (SEM) column. The SEM column contains an electron optical system in which electrons are emitted and moved to form a focused beam, and this generates secondary electrons from the specimen surfaces, eventually making an image. The electron optical system mainly consists of a thermionic electron gun as the beam source, the lens system, the electron control unit, and the vacuum unit. In the design process, the dimension and capacity of the SEM components need to be optimally determined with the aid of finite element analyses. Considering the geometry of the filament, a three-dimensional (3D) finite element analysis is utilized. Through the analysis, the beam emission characteristics and relevant trajectories are predicted from which a systematic design of the electron optical system is enabled. The validity of the proposed 3D analysis is also discussed by comparing the directional beam spot radius. As a result, a prototype of a thermionic SEM is successfully developed with a relatively short time and low investment costs, which proves the adoptability of the proposed 3D analysis.

• 한국정밀공학회지
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• 제17권3호
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• pp.58-67
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• 2000

Electron gun heaters are used to heat a cathode in video(TV) monitors. Major defects of the electron gun heaters include dimensional inaccuracy and pollution with dirty materials. In this paper, to save the labor and time being taken to inspect the heaters, a machine vision system is considered. For the system, a new algorithm is developed to measure the 9 different dimensions of each heater and to detect polluted defects. The algorithm consists of three stages. In the first stage, the center of the heater image is obtained and then its boundary detection is performed. For the efficient boundary detection, a mask called the sum mask is used. In the second stage of the algorithm, a set of fiducial points are determined on the boundary image. Finally, using the fiducial points specified dimensions are measured and the amount of polluted area is computed in the third stage. The performance of the algorithm is evaluated for a set of real specimens. The results indicate that measurements obtained by the algorithm satisfy the tolerance limits fur most of the dimensions and the algorithm detects the polluted defects successfully.

• 한국정밀공학회지
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• 제20권11호
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• pp.134-141
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• 2003

An industrial product is designed and fabricated, followed by the inspection process in order to check whether it is dimensionally tolerable or not. The machining process produces a part such as a mold or die, in which the three-dimensional coordinate might be measured by a CMM (Coordinate Measuring Machine) for assessment of its dimension. It is not ignorable, however, that a CMM measurement requires a lot of operating time and cost, which has led to many studies on the OMM system. The OMM system can be categorized into contact and non-contact types, and each of which has its own strengths and weaknesses. Non-contacting types generally utilize structured lights, sounds or magnetic fields. Though they show rather poor performance in positional accuracy, the measuring speed is faster than the contacting probes. This paper presents the development of an OMM system based on a non-contacting laser displacement sensing apparatus and CAD model. The system is composed of software modules of center-aligning and measuring, which has been operated and verified on a NC machining center on a shop floor.

• 한국의류학회지
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• 제30권6호
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• pp.939-947
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• 2006

The purpose of this study was to identify the relationships between vanity and materialism and fashion orientation. This study identified underlying factors of vanity and then grouped respondents into clusters based on the low factors of vanity. This study also examined their materialism and fashion orientation according to clusters. Data were gathered by surveying university students living in Seoul metropolitan area using convenient sampling, and 313 questionnaires were used in the statistical analysis. In analyzing data, factor analysis, cluster analysis, t test, correlation, and one-way ANOVA were conducted. Regarding vanity, low factors, 1) a concern id. physical appearance, 2) a positive view of physical appearance, 3) a concern for achievement, and 4) a positive view of achievement, were identified. Correlation analysis showed all four factors of vanity were significantly related with underlying dimension! of materialism and fashion orientation. Based on the factor scores, three clusters were identified. There were also significant differences in the dimensions of materialism and fashion orientation according to the clusters.

• 패션비즈니스
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• 제20권1호
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• pp.173-190
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• 2016

The purpose of this study was to investigate the mediating roles of relationship quality, satisfaction and trust, and switching cost during the process of the effects of service quality in the beauty industry. Assuming the attractiveness of alternatives of such structural relations may differ between paths of groups, effects of influence on the relation of each composition concept were investigated. This study adopted a three-dimensional model of service quality, "process quality", "outcome quality", and "environment quality." Amos was used to analyze the research hypotheses and the proposed model. The result of the study suggests that service quality positively influences relationship quality, and relationship quality yields service loyalty. The results also indicates that relationship quality positively influences switching cost and switching cost positively influences service loyalty. Each service quality dimension had a significant effect on satisfaction, trust, and the relative importance of service quality dimensions on satisfaction; trust followed the order of process quality, outcome quality, and environment quality. The moderating variable such as the alternatives' attractiveness is found to be important moderators of the path of the model.

• 패션비즈니스
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• 제21권1호
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• pp.45-57
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• 2017

This study explored the current implementation status of corporate social responsibility (CSR) among textiles and apparel manufacturers and retailers in Korea, based on the Triple Bottom Line (TBL). We also investigated the provision of information related to CSR practices on the websites of companies. A quantitative content analysis was conducted to analyze the website disclosures of 61 listed companies categorized in the textiles, apparel, shoes, and luxury industry. Analysis was focused on the presence, accessibility, and the level of CSR website disclosure. Seven themes emerged by applying the constant comparison analysis. Using Scott's formula for pi, a high level of inter-coder reliability was achieved, ranging from 0.91 to 0.97. Regarding the three dimensions of CSR suggested in TBL, economic dimension was relatively more emphasized in the website disclosures of most companies, compared to social and environment dimensions. Website disclosures were further investigated, based on the product categories of each company. Limitations of this study and suggestions for future studies are discussed.

• 한국측량학회지
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• 제14권2호
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• pp.151-157
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• 1996

본 연구에서는 실험적으로 현존하는 수치지형모델 구축기법간의 정확도를 비교 분석하여 효율적인 수치지형 모델 구축방안을 제시하고, 프랙탈 기하학의 수학적 알고리즘을 응용, 터보 파스칼을 이용 3차원 프랙탈 지형 모델링 프로그램을 개발하여 지형공간정보시스템 기반의 프랙탈 지형 모델링 시스템을 구현하는 기초연구를 수행함에 목적이 있다. 연구의 결과 점 데이터와 선 데이터의 조합에 의해 불규칙삼각망을 생성하는 방법이 정확도 향상의 측면에서 가장 효율적인 방법으로 나타났으며, 프랙탈 기하학을 응용한 3-D 프랙탈 지형 모델링 시스템 개발은 프랙탈을 이용한 3차원 지 형 모델링의 가능성을 제시했다는 측면에서 기초연구로서 소기의 성과를 얻을 수 있었다.

• 무역상무연구
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• 제30권
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• pp.3-26
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• 2006

Supply chain is viewed as a number of organizations(at least three) working cooperatively with at least some shared objectives. The concept of supply chain management represents the most advanced state in the evolutionary development of purchasing, procurement and other supply chain activities. This study aims to analyze and develop a measurement instrument for supply chain performance in international logistics. A measurement instrument for supply chain performance in international logistics are developed by Lai et al(2002). Supply chain reliability, customer service and cost are constructed reflecting service effectiveness and operations efficiency between shipper, forwarder and liner. The results of this study are as follow. We firstly tested the measurement properties of the sub-dimension of the supply chain performance construct using reliability test and confirmatory factor analysis follow by exploratory factor analysis. For each of the factor, reliability and validity are achieved because of the significant loading of the measurement items on their latent factors. Further research perform the analysis of variance by multi respondents within each firm and across partner firms in the supply chain. The result of analysis present the difference with shipper, forwarder and liner in statistics.