• Journal of the Korean Society for Precision Engineering
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• v.32 no.1
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• pp.113-113
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• 2015

• Journal of the Korean Society of Clothing and Textiles
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• v.21 no.5
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• pp.807-820
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• 1997

This exploratory research was intended to develop and test a slacks pattern based upon conic model. Data came from measurements of photograph of three subjects. Silhouette of slacks was close fit on waist and hip and loose under hip level. This three-dimensional form was modeled with truncated cones. This conic model was truncated by plane of the waist level, the abdomen level, the hip level, the crotch level and the ankle level parallel to the floor. Two models that have differences in back part of the model were tested. Drafted patterns from two models were taken for each subject. Drafted experimental pattern was operated for slacks pattern. The first step was to make sideseam. Parts over crotch level were moved to both sides. And then to make waistdarts. Experimental pattern had two darts each in front and back. Each experimental slacks was evaluated by sensory test to appearance and comfort by five judges. The results can be summarized as follows. 1) Appearance and comfort of experimental pattern were judged to be satisfactory. Especially these patterns were fitted we18 in waist darts front and back. So we evaluated that was proper pattern for slacks. 2) Model 2 was better in appearance than model 1. But Model 1 was more comfortable in non significant difference. This was supposed to be resulted from fit more closely of model 2. 3) considering preceding results, this geometric model based upon truncated cone was applicable for slacks pattern.

• The Research Journal of the Costume Culture
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• v.26 no.4
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• pp.531-546
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• 2018

The purpose of this study is to comparatively examine techniques and expressive characteristics of batik by focusing on the work of DanZhai and that of ZhenNing Buyi. We collected 50 pieces of batik each from Miao and Buyi in Chinese GuiZhouSheng and then analyzed their colors and patterns. The findings show that most of Miao's batik had deep and soft tones, while that of Buyi most often had blackish tone since the number of dyes in the latter is higher than that in the former. Miao often used patterns expressing animals or animals and plants, while Buyi frequently used geometric ones. An examination of specific motifs demonstrated that butterflies, fish, and flowers were most often used by Miao, while dots, vortexes, lines, and lozenges were frequently utilized by Buyi. For expressive techniques, both Miao and Buyi commonly used simple stylized expression or complex expression combining stylized and geometric techniques. Maio's motifs were often decoratively expressed with delicate curves, while Buyi's motifs had simple structures, so pictures were neatly expressed with thick lines and wide and simple planes. For the composition of the motifs, incomplete symmetry between top and bottom and between left and right often appeared in Maio, while in Buyi complete symmetry was frequently shown.

• Education of Primary School Mathematics
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• v.26 no.1
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• pp.45-63
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• 2023

The activity of finding rules is useful for enhancing the algebraic thinking of elementary school students. This study analyzed the pattern activities of a finding rules unit in 10 different government-authorized mathematics curricular materials for fourth graders aligned to the 2015 revised national mathematics curriculum. The analytic elements included three main activities: (a) activities of analyzing the structure of patterns, (b) activities of finding a specific term by finding a rule, and (c) activities of representing the rule. The three activities were mainly presented regarding growing numeric patterns, growing geometric patterns, and computational patterns. The activities of analyzing the structure of patterns were presented when dealing mainly with growing geometric patterns and focused on finding the number of models constituting the pattern. The activities of finding a specific term by finding a rule were evenly presented across the three patterns and the specific term tended to be close to the terms presented in the given task. The activities of representing the rule usually encouraged students to talk about or write down the rule using their own words. Based on the results of these analyses, this study provides specific implications on how to develop subsequent mathematics curricular materials regarding pattern activities to enhance elementary school students' algebraic thinking.

• Journal of the Korea Fashion and Costume Design Association
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• v.11 no.2
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• pp.33-42
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• 2009

The purpose of this study was to research the development of jacquard fabrics by the Bi-Dan patterns of Dan-Chung as one of the traditional korean symbols. For performing this design study, it designed a surface design of the geometric images in Bi-Dan patterns using by EAT Jacquard Textile CAD system and simulated to fabrics for the clothing & bags. To consider the modern image of Bi-Dan patterns in the Dan-Chung motives, the theoretical background was made on the basic elements, compositions and symbolic meanings of Dan-Chung patterns. To merchandise the fashion items and see the visual image, these jacquard fabric simulations was processed by two-dimension modeling through YoungWoo CNI CAD. The applied weave structure was based on a single layer of 5 or 10 points-satin and a double layer of 8 points-satin. Among the fabric simulations of Bi-Dan patterns, the six simulated fabrics were woven into the real jacquard fabrics under the electronic Stabuli jacquard loom in $120{\sim}130$ picks per inch and 171 ends per inch. These developed jacquard fabrics of Bi-Dan patterns were appeared a contemporary yet ethnic feeling so that they could make use of the unique korean cultural products by the further commercialization.

• Korean Institute of Interior Design Journal
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• v.19 no.6
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• pp.91-99
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• 2010

There is a commonality between Frank Lloyd Wright and Charles Rennie Mackintosh in that they created the new patterns of geometric Art Nouveau from the late 19th and early 20th centuries. This study compares the furniture of Wright and Mackintosh who had significant impacts on the development of modern design for each of the periods divided by their design feature to find the individualities and similarities of their design. It is an analytical approach with an accurate understanding of the design trends of the Art Nouveau era. The results of the furniture comparison are as follows: The finding is that Wright and Mackintosh designed creative furniture in harmony with a specific indoor space, Organic design was well expressed through the selection and use of wooden materials, Based on the understanding of tree characteristics, they did not use detailed decorations, but designed the simple and rigorous forms of furniture with highlighted interest in geometry. As for shape, Wright's furniture in his early days tend to be look largely formal and heavy. Since his debut in Japan in 1905, the furniture design became very sophisticated. On the other hand, Mackintosh's chairs are characterized by plenty of geometric patterns and long back. In many cases, his chairs were designed as part of formative elements in space, not for the purpose of furniture itself. As for materials and colors, Wright used mainly cherry wood. And he also utilized metals colored in olive green, red-brown and others for office furniture. The frames, fabrics and leather used for most of the furniture have natural colors, which are harmonious with spaces. Meantime, Mackintosh used primarily oak and ash trees. He used seat cushions and various colors to make the design of furniture have a sophisticated and simple image. The materials used for seat panel are horsehair, rush, silk and leather. He applied these materials to the furniture by weaving or cutting them.

• Journal of the Korean Society of Costume
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• v.66 no.7
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• pp.34-49
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• 2016

The ancient 'sacred cloths' of Indonesia have diverse characteristics. The purpose of this study is to analyze the characteristics of ancient Indonesian textiles, focusing on 'sacred cloths.' The research is divided into two parts. The first part analyzes the creation period, religious importance, region where the cloths are found, and color of the 'sacred cloths.' The second part focuses on the textile-making techniques and the ritual patterns of the 'sacred cloths.' This research is the second paper. This research analyzes 225 Indonesian sacred cloth examples chosen for their religious function in ceremony, and reviews 10 books and 8 research papers. Field research was done in the Museum of Bali, the Indonesian Museum of Textiles, and nine weaving production houses in eastern Bali. Indonesian sacred cloths express their cultural philosophy and function through production techniques, colors, techniques, and visual patterns. The 'sacred cloth'-making techniques are classified as Batik, Prada, and Ikat. The regions that contribute to the textile production determine what patterns show up on the cloths. Sumatran patterns are philosophical, lavish, and prestigious. Bornean patterns are barbaric and prestigious. Balinese patterns are complex, decorative, warm, festive, calm, and aristocratic. Javanese patterns are symbolic and repetitive. Celebes patterns are artistic and simple. Nusa Tenggara patterns are symbolic and narrative. The forms shown on the textiles, whether geometric, human and animal, natural objects, or abstract patterns, determine how to classify the varied patterns. As a result, ancient Indonesian sacred cloths characteristics portray Indonesian identity as Bhinneka Tunggal Ika(Unity in Diversity).

• Proceedings of the Earthquake Engineering Society of Korea Conference
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• 2000.10a
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• pp.33-40
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• 2000

The assessment of earthquake hazards involved consideration of earthquake magnitude, frequency, last movement and probability of occurrence. The appraisal of earthquake potential is feasible because historical data show a good correlation between earthquake size and the fault rupture parameters of length, displacement, and area. Additionally, the characteristics of fault behavior should be considered to evaluate the earthquake potential magnitude. In this study, in order to evaluate the earth quake potential by the fault behavioral patterns, based on the experimental background which the geometric characteristics of the individual domains, such as strike, width, fault tip patterns, and orientation of secondary shears reflect sliding behavioral patterns in each section, the straight sections of A, D and E domains were examined to the creeping section of stably sliding. In contrast, the curved section of B domain was examined to the locked section of stick-slip movement. These results of studies can be applied to evaluate the earthquake potential magnitude from the fault structural parameters.

• The Research Journal of the Costume Culture
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• v.18 no.6
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• pp.1179-1193
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• 2010

For a good design, it is important to understand consumers and trend of textile and fashion design. Previous researches on textile pattern design with CAD have been done. They have studied on Korean traditional floral motives/hand painting or some geometric patterns. Few studies have been done on conversational design. Therefore the purpose of study was to observe types of textile pattern design for the recent fiver years and determine fabric pattern trends, especially on the conversational motifs. The types of patterns were analysed with professional panels from the 2005～2009 collection sources, using SPSS program. This study was also develop textile patterns creating using CAD. We conducted design process on motif creating, repeat, and mapping jobs, using textile special design program Prima vision and Photoshop CS3.

• Journal of the Korean Society of Visualization
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• v.2 no.2
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• pp.66-72
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• 2004

The heat transfer and pressure drop characteristics of $CO_{2}$ are substantially different from those for CFC and HCFC refrigerants. In addition, geometric effects on two-phase flow patterns of $CO_{2}$ are also very significant in many respects. Therefore, two-phase flow patterns of $CO_{2}$ in a narrow rectangular channel or a small diameter tube whose gap size or hydraulic diameter is less than 2 mm are very important to understand heat transfer characteristics and to develop an appropriate heat transfer correlation. In the present study, the evaporation process of $CO_{2}$ in a narrow rectangular channel is visualized at various test conditions, and then the effects of operating conditions are analyzed.