• The Korean Journal of Applied Statistics
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• v.7 no.2
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• pp.183-200
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• 1994

Data-adaptive sequential suboptimal designs for very complex computer simulation codes are considered based on a spatial prediction model. These designs are constructed for two simulators of the computational nuclear fusion devices model. The difficulty of constructing the optimal designs due to the irregular design region, and its alternatives are also discussed with some computational algorithms for obtaining the designs.

• The Korean Journal of Applied Statistics
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• v.5 no.2
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• pp.169-179
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• 1992

It is shown that a structurally complete row-column design has orthogonal factorial structure if each of its component designs has orthogonal factorial structure. It implies that such designs are most easily constructed via the amalgamating of one-dimensional block designs which have orthogonal factorial structure. However, this does not always hold for structurally incomplete row-column designs. A structurally incomplete row-column design is derived from the design with adjusted orthogonality, by simply interchanging row and treatment numbers.

• Journal of the Korean Statistical Society
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• v.31 no.3
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• pp.277-299
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• 2002

Most statistical designs, such as orthogonal designs and optimal designs, are based on a specific statistical model. It is very often that the experimenter does not completely know the underlying model between the response and the factors. In computer experiments, the underlying model is known, but too complicated. In this case we can treat the model as a black box, or model to be unknown. Both cases need a space filling design. The uniform design is one of space filling designs and seeks experimental points to be uniformly scattered on the domain. The uniform design can be used for computer experiments and also for industrial experiments when the underlying model is unknown. In this paper we shall introduce the theory and method of the uniform design and related data analysis and modelling methods. Applications of the uniform design to industry and other areas are discussed.

• The Journal of Korean Physical Therapy
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• v.14 no.2
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• pp.98-106
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• 2002

To understand the trends in research in the fields of physical therapy, all issues of the Journal of Korean Society of Physical Therapy were reviewed from volume 1 in 1989 to volume 13, number 2 in 2001 in regard to research themes, research objects, and research designs. The number of articles dramatically increased in recent years. Although exercise physiology, biomechanics, and therapeutic exercise were major subjects of interest, alternative treatment modalities such as massage, taping, acupuncture were fields of increasing interests. There were also increasing interests in medical engineering and basic science. Cerebrovascular accidents, elderly people, sportsmen were research objects of increasing frequency. In regard to research designs, experimental research designs such as randomized controlled designs and nonequivalent controlled designs were increasingly adopted in clinical research.

• Journal of Korean Society for Quality Management
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• v.40 no.4
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• pp.431-440
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• 2012

Purpose: In this paper we propose modified Notz designs which are useful to experimenters who want to adopt the sequential experimentation strategy and to estimate second-order regression model with as few experimental points as possible. Methods: We first present the design matrices and design points in two or three dimensional spaces for such small sized second-order designs as small composite, hybrid, and Notz designs. Modified Notz designs are proposed and compared with some response surface designs in terms of the total number of experimental points, the estimation capability criteria such as D- and A-optimality. Results: When sequential experimentation is necessary, the modified Notz designs are recommendable. Conclusion: The result of this paper will be beneficial to experimenters who need to do experiments more efficiently, especially for those who want to reduce the time of experimentation as much as possible to develop cutting-edge products.

• The Korean Journal of Applied Statistics
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• v.10 no.1
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• pp.163-175
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• 1997

Randomization of the run order within a block is a technique commonly employed by the experimenters of block designs to avoid biases in the estimates of the effects of interest. In practice, however the experimental responses are sometimes affected by the spatial or temporal position of the experimental units within a block. In such cases, it is preferable to use a systematic ordering of the treatments. It is often possible to find an ordering which will allow the estimation of treatment effects independently of any trend is known as a trend-free block designs. In many idustrial and agricultural experiments, treatments are applied to experimental units sequentially in time or space. This paper begins with a review of concepts and properties of trend-free designs. We, then devise algorithms to generate linear trend-free designs. We extend and modify the existing algorithm which is given by Bradley and Odeh(1988). Also, the algorithm which generate all possible linear trend-free designs in provided.

• Korean Institute of Interior Design Journal
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• v.16 no.2 s.61
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• pp.209-216
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• 2007

Some may call Peter Marine as 'an ego-less architect', or 'palace maker' due to his designs or attitudes that appearantly please world's most well known clients. However, his eclectic taste and artistic expressions combined with his minimal and abstract architectural approaches are being recognized in many places globally, especially in many fashion brand stores such as Channel, Louis Vuitton, Christian Dior, and Fendi. Born and educated in U.S., Peter Marino designs are influenced by two most famous designers of our modern art history Andy Warhol and Jean-Micheal Franks, that are obvious in his traditionally modern French style designs and abstract expressions. The current study introduces Peter Marine designs through analyses of Channel and Louis Vuitton. The objectives are to understand the designer and find patterns in his brand store designs that has made him now one of the most famous fashion store designers. Educational, social, and personal interest were found to strongly form his design characteristics and four main characteristics were identified by the researcher that are use of LED lightings, emphasis on vortical circulations, graphical application of brand identities, and repetition of simple geometric forms.

• IE interfaces
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• v.23 no.2
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• pp.118-125
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• 2010

The determination of a regression model is important in using statistical designs of experiments. Generally, the exact regression model is not known, and experimenters suppose that a certain model form will be fit. Then an experimental design suitable for that predetermined model form is selected and the experiment is conducted. However, the initially chosen regression model may not be correct, and this can result in undesirable statistical properties. We develop model-robust experimental designs that have stable prediction variance for a family of candidate regression models over a cuboidal region by using genetic algorithms and the desirability function method. We then compare the stability of prediction variance of model-robust experimental designs with those of the 3-level face centered cube. These model-robust experimental designs have moderately high G-efficiencies for all candidate models that the experimenter may potentially wish to fit, and outperform the cuboidal design for the second-order model. The G-efficiencies are provided for the model-robust experimental designs and the face centered cube.

• Korean Institute of Interior Design Journal
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• v.14 no.6 s.53
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• pp.3-11
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• 2005

With development of digital technology and build-up of global network in the 21st century, Korea has recklessly accepted Western information and culture in recent years, thus causing damages to out identity. In the situation, restoration and development of traditions in a modern way will contribute to the creation of contemporary interiors. This study has analyzed and assessed the process through which traditional decorative elements have applied to contemporary interior decorations over the past ten years with a view to identify the trend of expressing traditional elements in comtemporary interiors. Designs that have applied traditional elements in a transfigure expression method amounted to 77 pieces, accounting for $43\%$ of the total investigated 178 designs, which was followed by 48 designs ($27\%$) of metaphor expression method and 39 designs ($22\%$) of symbol expression method, which express the tradition as interpreted by the designer. Designs that have adopted direct expression method amounted to no more than 14 pieces, accounting only for $8\%$ of the total designs. This result suggests that transformative, metaphoric and symbolic expressions that simplify or transform the original forms we more frequently used In the applications of traditional elements to modern interiors rather than directive expression that reproduces the original form as it was.

• International Journal of Human Ecology
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• v.12 no.1
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• pp.101-113
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• 2011

This research aims to enrich the field of decorative designs for the T-shirts of youth clothes. Youth T-shirts have been chosen because they are essential apparel and one of the most important casualwear. T-shirts are probably the number one item sold across the world. Every tourist shop has many of them, worldwide. The decorative ideas have been inspired from some symbols of Coptic arts. This incorporates the cultural power of Coptic art as a vital starting point for new design ideas and development of products. However, the purpose of this research is to make our youth know something about the Coptic arts of Egypt, as a part of their history, and on the other hand for tourists as well. Youth are very suitable tools for spreading our new ideas where they are energetic and full of life. In this work, twenty-one designs are presented inspired from ten Coptic symbols. Five designs have been implemented in three different ways of printing and embroidery, i.e. there are fifteen models have been formed. An opinion poll has been occurred for two groups of youth, one is younger and the other is older, hence T-test has been applied. It is clarified that our designs are approved by the younger group than the older one. The results of this work can offer some good reasons for further investigations on the fashionable decorated designs for youth and tourists as well; in addition to the decoration education development.