• 한국CDE학회논문집
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• 제14권2호
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• pp.105-114
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• 2009

A design needs various experience and design knowledge through a whole design process. Despite of all efforts and time, it is not easy to introduce a product that meets all customer's needs and expectation in time. To achieve the product goal, designers need a set of sequential process to find appropriate design parameters and ensure customers' needs and requirements. In this research we propose a design methodology for the initial design of an excavator front group with existing QFD(Quality Function Deployment) and Axiomatic Design to satisfy customer's requirements. It turns out that the proposed methodology can support designers more effectively, objectively, and systematically.

• 정보관리학회지
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• 제19권2호
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• pp.49-67
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• 2002

B2B 전자상거래와 같이 XML을 이용한 정보교환이 확산되고 있으며 이에 따라 상호 교환되는 정보에 대하여 체계적이며 안정적인 저장관리가 요구되고 있다. 이를 위해 XML 응용과 데이터 베이스간의 연계를 위한 다양한 연구가 이루어지고 있다. 특히 계층적 구조를 갖는 XML 파일을 다양한 형태의 데이터베이스에 저장하기 위한 데이터 모델링 방안이 요구된다. 본 논문에서는 UML을 이용한, 다양한 형태의 데이터베이스 기반의 XML 응용을 위한 통합설계 방법론을 제안한다. 이를 위하여 먼저 UML을 이용하여 W3C XML schema를 설계하기 위한 XML 모델링 방안을 제시하고, 아울러 교환되는 XML 파일을 저장 관리하기 위하여 객체-관계 데이터베이스 스키마와 객체지향 데이터베이스 스키마 그리고 관계형 데이터베이스 스키마 설계를 위한 데이터 모델링 방법을 제안한다.

• International Journal of Precision Engineering and Manufacturing
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• 제1권1호
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• pp.133-145
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• 2000

Plastic molding designers are frequently faced with optimizing multiple defects in injection molded parts. these defects are usually in conflict with each other, and thus a tradeoff needs to be made reach a final compromised solution. In this study, an automated injection molding design methodology has been developed to optimize multiple defects of injection molded parts. Two features of the proposed methodology are as follows: one is to apply the utility theory to transform the original multiple objective optimization problem into single objective optimization problem with utility as objective function, the other is an implementation of a direct search-based injection molding optimization procedure with automated consideration of process variation. The modified complex method is used as a general optimization tool in this research. The developed methodology was applied to an actual molding design and the results showed that the methodology was useful through the CAE simulation using a commercial injection molding software package. Applied to production, this study will be of immense value to industry in reducing the product development time and enhancing the product quality.

• International Journal of Quality Innovation
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• 제5권2호
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• pp.89-105
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• 2004

Many researchers and practitioners have acknowledged the need to investigate the relationships amongst various criteria of implementing total quality management (TQM) in small and medium-sized manufacturing enterprises (SMMEs). There is a need to have practical research methodologies that take cognisance of the peculiarities of SMMEs and impact on their quality management practices in developing countries. This paper presents the theoretical foundation of a proposed Generative Research Methodology and configures the specification of a TQM implementation framework in SMMEs. The methodology combines rigorous research approaches, builds theory based on the dynamics of the environment and the firms' characteristics and incorporates various TQM criteria into the design of the framework. It synchronises inductive and deductive research methods in three phases and uses various means to acquire empirical evidence and examine the dependent and independent variables of TQM implementation. It is anticipated that the methodology could help SMMEs to develop, analyse and evaluate the framework for attaining quality performance goals.

• 산업융합연구
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• 제20권6호
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• pp.1-6
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• 2022

본 논문은 외부 설치 금속조형물의 디자인 방법론에 대한 연구로부터 시작되었다. 디자인의 범위와 의미가 커지면서 외부 설치 조형물에도 디자인의 개념이 사용되고, 조형물에 주변환경에 어울리면서 설치환경의 이야기를 담고 있는 조형물 디자인이 요구되고 있는 실정이다. 이러한 개념은 전문가들 사이에서만 환경조형물이라고 정의되고 있다. 환경조형물의 개념은 아직은 대중적이지 않고 학문적 연구 또한 미흡한 상태이다. 이에 연구자는 외부 설치 조형물을 환경조형물로 정의하기 위해 굿디자인의 개념과 조건과 환경조형물의 개념과 역할을 이론적 배경으로 알아보고 굿디자인의 개념과 조건, 환경조형물의 개념과 역할에 대해 분류하였다. 이론적 배경을 바탕으로 굿디자인의 조건과 환경조형물의 역할을 활용하여 연구자의 디자인 전개 요소를 통해 금속환경조형물로 완성하고 연구작품을 제시하였다. 결과적으로 금속환경조형물의 디자인 방법론을 제시하게 되었고 다양한 환경조형물 디자인 연구가 지속되어 융합적 환경조형물의 다양한 패러다임이 연구되기를 바란다.

• 유통과학연구
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• 제19권12호
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• pp.71-81
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• 2021

Purpose: This study to seek to answer two research questions in distribution science: what photo decoration cues in online grocery stores could be identified? Could photo decoration cues significantly effect on the affective perception and behavioral intention of consumers? Research design, data, and methodology: his study conducted a laboratory experiment with a 2×2×2 factorial design to validate the proposed research model and test our proposed hypotheses. Research design, data and methodology: Two stages experiments were adopted in this study, among 360 voluntaries who have had an experience of online grocery shopping, 331 valid data had been collected and analyzed using MANOVA and PLS-SEM algorism. Results: (1) both reflective surface and complementary goods layout lead to visual appeal and shopping enjoyment; (2) contrast color usage positively impacts on visual appeal while does not significantly affect shopping enjoyment; (3) consumers' affective responses positively impact attitudes toward product and store which in turn lead to purchase intention and store loyalty. Implications for research and practice are discussed. Conclusions: Using the media richness theory, visual rhetoric theory and visual design literature as the theoretical foundation, the study provides a solid foundation to comprehend the impact of photo design artifacts on consumers' affective responses when online consumers shopping online for fresh grocery.

• Integrative Medicine Research
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• 제6권4호
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• pp.388-394
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• 2017

Background: The present study optimized ultrasound-assisted extraction conditions to maximize extraction yields of glycyrrhizic acid from licorice. Methods: The optimal extraction temperature ($X_1$), extraction time ($X_2$), and methanol concentration ($X_3$) were identified using response surface methodology (RSM). A central composite design (CCD) was used for experimental design and analysis of the results to obtain the optimal processing parameters. Results: Statistical analyses revealed that three variables and the quadratic of $X_1$, $X_2$, and $X_3$ had significant effects on the yields and were followed by significant interaction effects between the variables of $X_2$ and $X_3$ (p<0.01). A 3D response surface plot and contour plots derived from the mathematical models were applied to determine the optimal conditions. The optimum ultrasound-assisted extraction conditions were as follows: extraction temperature, $69^{\circ}C$; extraction time, 34?min; and methanol concentration, 57%. Under these conditions, the experimental yield of glycyrrhizic acid was 3.414%, which agreed closely with the predicted value (3.406%). Conclusion: The experimental values agreed with those predicted by RSM models, thus indicating the suitability of the model employed and the success of RSM in optimizing the extraction conditions.

• 산업공학
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• 제22권1호
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• pp.95-103
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• 2009

During the past few years, design of experiments (DOE) has been gaining acceptance in the telecommunications research community as a mean for designing and analyzing experiments economically and efficiently. In addition, the need for introducing a systematic robust design methodology (i.e., one of the most popular DOE methodologies) to network simulations has been increasing. In this paper, we present an architecture of voice over IP (VoIP) application and the E-Model for calculating the perceived quality of service (QoS). Then, we apply the Taguchi robust design methodology to optimize the perceived QoS of VoIP application, and describe the detailed step-by-step procedures. We have used ns-2 simulator to collect experimental data in which the SN ratio, a robustness measure, is analyzed to determine an optimal design condition. The analysis shows that "initial delay time in playout buffer" is a major control factor for ensuring robust behaviors of the perceived QoS of VoIP. Finally, we verify the proposed optimal design condition using a confirmation experiment.

• Journal of Computational Design and Engineering
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• 제2권1호
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• pp.38-46
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• 2015

Augmented reality based on projection, called "Spatial Augmented Reality (SAR)", is a new technology that can produce immersive contents by overlapping virtuality and real-world environment. It has been paid attention as the next generation digital contents in media art and human-computer interaction (HCI). In this paper, we present a new methodology to evaluate the product appearance design more intuitively by means of SAR technique. The proposed method first projects the high-quality rendered image considering the optical property of materials onto the mock-up of a product. We also conduct a projector-camera calibration to compensate a color distortion according to a projector, a projection surface and environment lighting. The design evaluation methodology we propose offers more flexible and intuitive evaluation environment to a designer and user (evaluator) than previous methods that are performed via a digital display. At the end of this research, we have conducted a case study for designing and evaluating appearance design of an automobile.

• 국제학술발표논문집
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• The 4th International Conference on Construction Engineering and Project Management Organized by the University of New South Wales
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• pp.74-83
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• 2011

This paper recognized a need in the architecture, engineering, and construction industry for new programs and methods of producing reliable energy simulations using BIM (Building Information Modeling) technology. Current methods and programs for running energy simulations are not very timely, difficult to understand, and lack high interoperability between the BIM software and energy simulation software. It is necessary to improve on these drawbacks as design decision are often made without the aid of energy modeling leading to the design and construction of non-optimized buildings with respect to energy efficiency. The goal of this research project is to develop a new methodology to produce energy estimates from a BIM model in a more timely fashion and to improve interoperability between the simulation engine and BIM software. In the proposed methodology, the extracted information from a BIM model is compiled into an INP file and run in a popular energy simulation program, DOE-2, on an hourly basis for a desired time period. Case study showed that the application of this methodology could be used to expediently provide energy simulations while at the same time reproducing the BIM in a more readably three dimensional modeling program. With the aid of an easy to run and easily understood energy simulation methodology, designers will be able to make more energy conscious decisions during the design phase and as changes in design requirements arise.