• Title/Summary/Keyword: Pattern Research

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Methods of Merging a 3D Replica and Ease Distribution for Woman's Pant Patterns (여성용 바지 패턴 설계를 위한 3차원 밀착 패턴 여유량 부가와 레플리카 조합 방법)

  • Wu, Yanjun;Hong, Kyung-Hi
    • Journal of the Korean Society of Clothing and Textiles
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    • v.36 no.4
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    • pp.443-455
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    • 2012
  • In this research, a woman matched to the average Korean standard size specification of 21-24 years of age was scanned using Cyberware. Rapidform 2004 was used to separate the body zone into fit zone, action zone and design zone, depending on the function of the lower body. Each divided body zone expanded radially using 'offset' by 1.60mm at the cross section of the waist, and 6.36mm at the hip level. Resultant ease values were 1cm and 4cm along the waistline and hipline (respectively), as recommended in previous research. 2C-AN program and Yuka CAD was used to develop a pant pattern from the enlarged 3D body surface blocks. A total of five pants were constructed using conventional fabrics for light weight formal pants. The appearance of the experimental pants were evaluated by five clothing-major evaluators using a questionnaire that consisted of 21 questions. In addition, functional aspects of the experimental pants were also evaluated by wearer while performing five postures for the measurement of ease of movement. It was found that, the method of regional offset and suggested 3D to 2D pattern development generate reasonably good pant patterns. Among the pattern block arrangements, the method B was evaluated as the best way to generate formal pants from the tight-fit pattern, which fit smoothly over the lower body for maintaining ease of movement.

Study on Spaceborne SAR System Performance Improvements Using Antenna Pattern Resynthesis in Presence of Element Failure (안테나 소자 결함을 고려한 안테나 빔 패턴 재합성을 통한 위성 SAR 성능향상에 대한 연구)

  • Kang, Min-Seok;Won, Young-Jin;Lim, Byoung-Gyun;Kim, Kyung-Tae
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
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    • v.29 no.8
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    • pp.624-631
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    • 2018
  • To meet the requirements of various satellite synthetic aperture radar(SAR) system performance parameters, the characteristics of the antenna pattern should be analyzed. In this paper, we propose a method to improve the SAR system performance using an effective technique for optimizing antenna pattern synthesis in the presence of element failure. The desired antenna pattern can be synthesized by referring to the optimized antenna mask templates using the particle swarm optimization algorithm. In the simulation, the performance of the proposed method is verified by analyzing characteristics related to the SAR system performance parameters using antenna pattern regeneration.

A Study on Pattern Development of Pet Dog's Wear through Movement analysis of Pet Dog (애견(愛犬)의 동작분석(動作分析)을 통(通)한 애견복(愛犬服)패턴 개발연구(開發硏究))

  • Shim, Boo-Ja;Suh, Chu-Yeon
    • Journal of Fashion Business
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    • v.7 no.2
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    • pp.1-14
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    • 2003
  • This study were to grasp the present situation of the pet wear market and the problem of pet wear, and to develop the pet wear pattern which agrees well to dog's shape and movements. We carried out survey research to analyze the actual pet wear market condition for a dog-lover, and movement analysis and sensory test to develop a pattern for Maltese which was the favorite dog among Korean. For data analysis, ANOVA with duncan test, T-test were conducted using SPSS statistic program(ver. 10.0). The results are as follows: 1. The results of the survey research, 75% of dog-lover had a pet wear and favorite was T-shirts. The problems of wearing T-shirts were 'too tight seam sleeve and bodice(front legs hole)', 'the clothes easily hang down' and 'easily taken off due to large neck size'. 2. The ease amount of the developed pattern was given according to the results of dog's shape and movement analysis, and the results of sensory test, there is a significant difference in the following items: depth of front neck line, front chest${\to}$abdomen curve, ease amount of sleeve, comfort level of leg parts. 3. The size of each parts of the developed pattern in this study were as follows : neck girth 27.0cm, body girth 40.0cm, back length 26.0cm, front leg girth 23.0cm, sleeve length 20.7cm, sleeve width 14.4cm. But, there exists some limits to generalize these results since dog's body size and shapes are various according to dog species. Therefore, further studies are needed to develop each pet wear pattern for each dog species.

The Difference of Syndrome Differentiation Patterns between Premenopausal and Climacteric Obese Korean Women (폐경전 및 갱년기 과체중 한국 성인 여성의 변증 지표 차이에 대한 연구)

  • Chung, Won-Suk;Hwang, Mi-Ja;Lee, A-Ra;Moon, Jin-Seok;Choi, Sun-Mi;Song, Mi-Yeon
    • Journal of Korean Medicine for Obesity Research
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    • v.8 no.2
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    • pp.37-47
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    • 2008
  • Objectives The aim of the study was to investigate the difference between pattern identification of premenopausal(n=39) and climacteric(n=40) korean obese and overweight women using Syndrome Differentiation Questionaire. Methods 39 premenopausal obese women(BMI${\geq}25kg/m^2$) and 40 climacteric overweight and obese women(BMI${\geq}23kg/m^2$) were recruited from October 2007 to March 2008 in Seoul, Korea. Subjects who had other disease were rejected. Basic anthropometry and body composition were measured. Every subjects were given and filled out the Syndrome Differentiation Questionaire, and we analyzed that using Fisher's exact test. Results 1. Premenopausal women showed high frequency of food accumulation pattern(43.6%), but in climacteric women, liver qi depression pattern was frequent(57.5%, p=0.021). 2. In weighted Syndrome Differentiation Questionaire score, Premenopausal women showed high frequency of food accumulation pattern(43.6%), but in climacteric women, liver qi depression pattern was frequent(47.5%, p=0.004). 3. There were no correlation between anthropometry and scores of the each patterns. Conclusions In this study, we can find out that the dietary factors play major roles in obesity of premenopausal women and emotional factors in obese climacteric women in the view of oriental pattern identification diagnosis. But it seemed that there lacked of consideration that reflected the degree of obesity in this Syndrome Differentiation Questionaire.

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Comparative Studies of Evacuation Time According to the Distribution Characteristics of Training Ship's Personnels (운항실습선 승선자의 분포특성에 따른 대피시간 비교)

  • Hwang, Kwang-Il
    • Journal of Navigation and Port Research
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    • v.35 no.3
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    • pp.213-218
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    • 2011
  • This study simulates and compares the evacuation time and characteristics according to the living patterns on board a training ship which was launched in Dec. 2005, on the viewpoint of the various activities being possible on board a cruise ship. Based on interviews with personnels on board, 3 living patterns are set as representative living conditions; Pattern A(all personnels are positioned at their cabins), Pattern B(all personnels are positioned at lecture rooms, offices or else), Pattern C(all personnels are positioned at restaurant or cafeteria). The simulation results show that Pattern B is comparatively ideal because the evacuation time is short and there is less delay of personnels' movement on each deck. On the contrary, Pattern C is evaluated as the worst because the average evacuation time took more than 360 seconds and the bottle-neck happened at Upper deck. As a result, this study proposes the needs of various countermeasures against the fire and/or disaster, considering the various living patterns on cruiser(s) and/or passenger ship(s).

A Study on Art Nouveau Pattern in Modern Hair Style (현대 헤어스타에 나타난 아르누보 양식 연구)

  • Kim, Ju-Seub;Paik, Sun-Young;Lee, Jong-Min
    • Journal of the Korean Society of Fashion and Beauty
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    • v.6 no.2
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    • pp.80-86
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    • 2008
  • This study is to understand how fluidity and natural features of Art Nouveau style are reflected in hair style of Art Nouveau age and Modem age and be a help to the trend analysis of hair style in the future. The study is conducted with the research on Art Nouveau expression in hair style and analysis of hair-show, trend presentation, documents related with hair style, TV drama, theses, journals and internet etc through advance research for Art Nouveau and Hair. The result of the analysis on Art Nouveau pattern in hair design is presented as below. First, it shows rounded, winding, flowing and thick-waved style of Art Nouveau pattern in modem long and short hair style. It also shows the beauty of long, bending and flexible lines, waving liveness and thin and slim lines and this is the Art Nouveau pattern that is also applied to other fields. In terms of decoration, it does not use tree vines, leaves and petals that are expressed in paintings of Art Nouveau age. Second, it shows natural up-style by lifting hair up with waved long hair that is one pattern of Art Nouveau and expresses hair style with feathers of birds, tree vines, leaves and petals etc for more decoration in animal pattern to make cute, romantic and elegant style in hair style.

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A healthy dietary pattern consisting of a variety of food choices is inversely associated with the development of metabolic syndrome

  • Baik, Inkyung;Lee, Myoungsook;Jun, Nu-Ri;Lee, Jae-Yeon;Shin, Chol
    • Nutrition Research and Practice
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    • v.7 no.3
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    • pp.233-241
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    • 2013
  • There are limited data on healthy dietary patterns protective against metabolic syndrome (MetSyn) development. We identified dietary patterns among middle-aged and older adults and investigated the associations with the incidence of MetSyn. A population-based prospective cohort study included 5,251 male and female Koreans aged 40-69 years. At baseline, all individuals were free of MetSyn, other major metabolic diseases, and known cardiovascular disease or cancer. Cases of MetSyn were ascertained over a 6-year of follow-up. Dietary patterns and their factor scores were generated by factor analysis using the data of a food frequency questionnaire. We performed pooled logistic regression analysis to estimate multivariable-adjusted relative risk (RR) and 95% confidence interval (CI) for associations between factor scores and MetSyn risk. Two dietary patterns were identified; (1) a healthy dietary pattern, which included a variety of foods such as fish, seafood, vegetables, seaweed, protein foods, fruits, dairy products, and grains; and (2) an unhealthy dietary pattern, which included a limited number of food items. After controlling for confounding factors, factor scores for the healthy dietary pattern were inversely associated with MetSyn risk (P-value for trend < 0.05) while those for the unhealthy dietary pattern had no association. Individuals in the top quintile of the healthy diet scores showed a multivariable-adjusted RR [95% CI] of 0.76 [0.60-0.97] for MetSyn risk compared with those in the bottom quintile. The beneficial effects were derived from inverse associations with abdominal obesity, low HDL-cholesterol levels, and high fasting glucose levels. Our findings suggest that a variety of healthy food choices is recommended to prevent MetSyn.

Guidelines of 2D Pattern Development Process for 3D Fitted Cover of Character Toys (캐릭터 인형용 밀착커버 패턴개발 프로세스의 가이드라인)

  • Lee, Heeran
    • Fashion & Textile Research Journal
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    • v.19 no.5
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    • pp.635-645
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    • 2017
  • The industry of character toys is increasing and new characters are constantly being developed. However, the development of 2D cover patterns for toys is time-consuming due to frequent pattern modifications made through trial and error. Studies are now underway to obtain 2D clothing patterns from 3D body data, however, little research has been done on 2D pattern of character toys. This study suggests efficient guidelines to develop 2D cover patterns with a reasonable accuracy and processing time. Two 3D models of a dog and rabbit were used to develop 2D cover patterns. Independent variables of this study are set as 3 levels of triangle area (small, medium, and large) that influence the efficacy of 3D and 2D pattern development. The determination of the appropriate triangular area was based on the area and shape change of the 2D pattern. A medium or large triangle area was shown to be suitable for a character dog with a smooth curved surface. However, the appropriate triangle area was small if the characteristics of the curved surface are complicated as in the case of rabbit. The head of a dog (a double-curved surface) and the curved forepaw of a rabbit (a triangular area) should be small when the characteristics of the curved surface (such as the hind leg of a rabbit having a large convex surface and a small surface area) are complicated. Grouping by 3D surface characteristics could be a suitable guideline for the triangle area selection.

A Study on the Wallpaper Design as the Interior Decorating Elements in Modern Period - Focused on England and Korea Wallpaper in the 1900s - (근대기 실내장식요소로서 벽지에 대한 인식과 디자인 전개에 관한 동서양 비교 연구 - 1900년대 전후 영국과 한국의 벽지사례를 중심으로 -)

  • Lee, Ji-Young
    • Korean Institute of Interior Design Journal
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    • v.26 no.5
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    • pp.106-116
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    • 2017
  • In the 1900s, the cultural crossing of East and West was realized through the acceptance and reproduction of culture. Cultural change in the Orient was the result of attempts to harmonize the West's images, which they chose in their respective countries, with their own culture. However, research on design history until now has been centered on the West, and East was regarded as a beneficiary of civilization inherited from Western's. From the point of view of Western design history as a main trend, the unique characteristics of Korean design culture are not revealed. Therefore, through this studies, we want to distinguish Korea's modern design, which has been recognized as a minority. For the study, through the wallpaper, which is one of the detailed components of the interior space in modern times, we try to analyze the socio - cultural historical factors and design characteristics influencing the formation of the interior space in modern times. Summarizing a result of research. The early modern wallpaper of England mainly uses plants as motifs. But In Korea, animal patterns and letter patterns were used. The reason why European wallpaper was mainly a plant at the time was that the structure of the motif was useful for the process of creation. However, in the case of the Korean wallpaper pattern, the theme was selected according to the meaning of the motif, and it was abstracted appropriately for the 2D design. As a result, many geometric shapes were formed. In addition, European wallpaper pattern is more complex and organic than Korean wallpaper pattern. Therefore, the boundary of the central pattern as the basic unit is unclear and the patterns are connected. The pattern development method is not a simple repetition but a combination of symmetry and repetition. In Korea, on the other hand, the boundaries of unit patterns are clear and patterns are developed by simple repetition. There are many diamond-type repeating patterns in particular.

Compensation of Radiation Pattern Distortion by Mutual Coupling in the Array Antenna Using the Particle Swarm Optimization Algorithm (입자군집 최적화 알고리즘을 이용한 배열안테나의 상호결합에 의한 방사패턴 왜곡보상)

  • Kim, Jae Hee;Ahn, Chi-Hyung;Chun, Joong-Chang
    • The Journal of Korea Institute of Information, Electronics, and Communication Technology
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    • v.9 no.5
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    • pp.458-464
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    • 2016
  • This paper proposes the compensation method which decreases the radiation pattern distortion caused by the mutual coupling in an array antenna. If the element distance of an array antenna decreases, the radiation pattern could be distorted by the strong mutual coupling, which changes the magnitude and phase of input signals and causes an unwanted radiation pattern. To remove the pattern distortion, compensated input signals are inserted in an array antenna. The magnitude and phase of input signals are determined by Particle Swarm Optimization (PSO) algorithm. A $4{\times}1$ dipole array antenna with omnidirectional elements is used to confirm the validity of the algorithm, where each element is placed in 0.2 wavelength to evoke the strong coupling. After input signals are optimized by PSO, it is found that the compensated radiation results in the same as the ideal case.