• Title/Summary/Keyword: Pattern comparison

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Comparison of Muscle Activities between the Diagonal Pattern of Shoulder Exercises Using the %Normalization and %Isolation Method (독립화 비율과 정량화 비율을 사용한 대각선 패턴의 어깨운동 간의 근활성도 비교)

  • Sang-Yeol Lee;Se-Yeon Park
    • PNF and Movement
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    • v.21 no.1
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    • pp.87-94
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    • 2023
  • Purpose: The present study aims to investigate the effects of a diagonal exercise pattern on selective activation of the upper extremity muscles using both normalization and isolation methods. Methods: In total, 17 asymptomatic subjects participated in this study. During the two diagonal patterns of exercise (diagonals 1 and 2), muscular activities of the upper trapezius (UT), lower trapezius (LT), serratus anterior (SA), anterior deltoid (AD), and infraspinatus (IS) were measured. The collected data were analyzed in two ways, according to the dominance of muscle activities (%Isolation) and according to normalized activities (%MVIC). Results: There were significant differences in LT, SA, AD, and IS between %MVIC and %Isolation (p<0.05), and the diagonal 1 pattern of exercise showed significantly more LT activities compared with the diagonal 2 pattern (p<0.05). Further, except for LT, there were no significant differences in muscle activities between the diagonal 1 and 2 exercises. Conclusion: The present study suggests that a diagonal pattern of exercise is advantageous for strengthening shoulder muscles, but caution is needed when applying to patients requiring selective strengthening. Regarding both the concentric and eccentric phases of exercise, there was no significant difference in muscular activation, except in LT, between the two diagonal patterns of exercises.

Comparison Among Shoulder Diagonal Pattern of Exercises Considering Phase of Contraction Based on Muscle Activity (상지의 대각선 운동형태와 수축형태에 따른 근활성도 비교연구)

  • Soo-Han Kim;Se-Yeon Park
    • PNF and Movement
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    • v.22 no.1
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    • pp.151-158
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    • 2024
  • Purpose: The present study investigated how variations in diagonal exercises affect shoulder muscle activity, examining changes in neuromuscular activation during scapular and shoulder diagonal patterns of exercises. Furthermore, we explored whether the exercise phase affects muscle activation. Methods: Sixteen asymptomatic male participants were recruited. Four diagonal pattern exercises (scapular anterior elevation, posterior elevation, flexion-adduction-external rotation, flexion, abduction-external rotation), and two exercise phases (concentric and eccentric) were administered. Surface electromyography data were collected. Results: Upper trapezius activity was significantly higher during the concentric phase of scapular posterior elevation exercises compared with the others (p<0.05). The serratus anterior, anterior deltoid, and infraspinatus activities were significantly higher during shoulder diagonal pattern exercises compared with the scapular diagonal pattern exercises (p<0.05). Except for the lower trapezius, muscular activities during the concentric phase were significantly greater compared with the eccentric phase (p<0.05). Conclusion: The current study suggests that the diagonal pattern of exercise may contribute to selective strengthening of the shoulder complex muscles and that the form of exercise should be tailored to the subject. It also suggests that diagonal exercises with concentric contractions tend to be more beneficial than eccentric contractions for overall muscle recruitment, but the effects vary for specific diagonal patterns.

Comparison of Middle Aged Men's Bodice Prototype using 3D Simulation

  • Cha, Su-Joung
    • Journal of the Korea Society of Computer and Information
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    • v.25 no.5
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    • pp.117-126
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    • 2020
  • In this study, a 3D simulation program was used to produce a bodice prototype of a middle-aged male in their 40s and 50s and then analyze the appearance evaluation and airgap, sectional view, color distribution through virtual wearing to compare and analyze the differences between patterns. Through this, it was intended to provide basic data necessary for pattern development to companies that manufacture and produce clothing for middle-aged men. As a result of analyzing, J pattern was analyzed as the most suitable body shape pattern for middle-aged men. E pattern was too tight and L pattern and N pattern had too much spaces. However, J patternt was analyzed that correction was necessary in setting center back and center front length. The aging phenomenon in which the back is slightly bent forward and shoulders are also inclined is expected to appear, so it is necessary to adjust the front-to-back length, shoulder angle, and shoulder length. It is considered that after developing the research pattern by modifying J pattern, it is necessary to develop a body shape prototype for middle-aged men through actual clothing experiments on middle-aged men.

Comparison of Middle Aged Men's Pants Pattern using 3D Simulation

  • Cha, Su-Joung
    • Journal of the Korea Society of Computer and Information
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    • v.25 no.5
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    • pp.107-116
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    • 2020
  • The purpose of this study was to compare the pattern of two men's pants for education and two for industry, and to analyze the patterning method that is most suitable for the body shape of middle-aged men. As a result of appearance evaluation for 3D simulation, J pattern was evaluated as the best in most items, and H pattern was analyzed to be the most inappropriate. As a result of measuring the airgap, all four patterns of the waist circumference were evaluated to have very small airgap, and the J pattern had the smallest airgap for the pants. J pattern was analyzed as the most suitable pattern for middle-aged men's body shape by synthesizing the appearance evaluation of virtual wear, color distribution, sectional view, airgap, etc. However, in the case of J pattern, it was analyzed that the pants length needs to be modified. Since this study compared and analyzed only two patterns for education and two for industry, it is thought that the development of pants for middle-aged men should be developed through actual wearing experiments with J patterns.

The Land-cover Changes and Pattern Analysis in the Tidal Flats Using Post-classification Comparison Method: The Case of Taean Peninsula Region (선분류 후비교법을 이용한 간석지의 토지피복 변화 및 패턴 분석 - 태안반도 지역을 사례로 -)

  • Jang, Dong-Ho;Kim, Chan-Soo;Park, Ji-Hoon
    • Journal of the Korean Geographical Society
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    • v.45 no.2
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    • pp.275-292
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    • 2010
  • This study investigated the land-cover changes in the tidal flat of the Taean peninsula due to man-made environmental changes between 1972 and 2008, through time-series analysis based on a modified post-classification comparison method and multi-temporal satellite images. The analysis revealed that the land-cover of the tidal flat has changed from tidal flat to wetland and from wetland to paddy field between 1972 and 2008. Also, the pattern of detailed land-cover changes is as follows: tidal flat to wetland; lake and saltpan to bare land and paddy field. The accurate classification of each image is needed for the application of the post-classification comparison method. The overall accuracy of the classified images was found to be 95.33% on average, and the Kappa value was 0.941 on average.

A Study on the Ideal Pattern of Family Ritual and the Spatial Use of Yangban Houses - focused on Gwanrye and Honrye - (관(冠).혼례(婚禮)를 중심으로 본 조선시대(朝鮮時代) 반가(班家)에서의 행예규범(行禮規範)과 공간사용(空間使用))

  • Kim, Ki-Joo;Kim, Sung-Woo
    • Journal of architectural history
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    • v.3 no.2 s.6
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    • pp.47-66
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    • 1994
  • Chosun dynasty had accepted the Confucianism as a means of governing whole society and in its practical aspect ${\ulcorner}$Garye${\lrcorner}$ and the ceremonies of family ritual regarded as important. As a result, after mid-Chosun dynasty family ritual was begun to popularized on a national scale, and the socio-culture system which was interrelated with it changed into confucian ones. These fill-scaled change, on the other hand, resulted into the change of spatial use and plan type of yangban houses. In this aspect, this study intends to clarify the influence of family ritual on spatial use of yangban houses through the comparison between ideal pattern and behavioral one of family ritual. And this study made Gwanhonrye except Sangjerye an object because these two ceremonies were peformed in sucession in those day's behavior. The research setting is the Korean traditional society prior to modernization. The collected materials are based on ethnographic information as well as personal documents, public records, field works and the books on family ritual. The methodology for the present study is primarily based on the comparison study between available documents and field work. Especially, as the books on family ritual include some explanatory diagrams of the ideal pattern, these diagrams are compared with another ones made by the author of the behavioral pattern. The major findings are as follows. Firstly, in the aspect of Gwanhonrye's process, the ideal pattern is similar to the behavioral one. But even the essential course of the ideal pattern of Honrye is 'chinyoung', it has never been accepcted in Chosun dynasty on account of 'seoryubuga'. Secondly, even though the names of the performing space of family ritual are different each pattern, the methods of spatial use in processing these two ceremonies are similar. In other words, according to the books on family ritual the major performing spaces of Gwanhonrye are 'chungsa' and 'jungchim', but in practical process of both ceremonies 'sarangchae' and 'anche' are used. Lastly, as family ritual like Gwanrye and Honrye had been practiced at yangban houses after mid-Chosun dynasty as mentioned above, the spatial arrangement had to be changed to a certain extent.

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Comparison of Electrical Tree Initiation According to Flow Pattern in EHV Power Cable Insulation (초고압 전력 케이블 절연층의 Flow Pattern 방향각에 따른 전기 트리 개시 특성 비교)

  • Lee, Seung-Yoo;Kim, Young-Ho;Cho, Dae-Hee;Lee, In-Ho;Park, Wan-Ki
    • Proceedings of the KIEE Conference
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    • 1999.07d
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    • pp.1532-1534
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    • 1999
  • Electrical treeing phenomenon, regarded as pre-breakdown which accelerates aging process leading an insulation to the complete breakdown, is with no doubt extremely fatal to the performance of the insulation. Investigated in this paper is electrical treeing representing local dielectric failure according to flow pattern, the flow history of liquid polyethylene formed during the extrusion process. Experiments of electrical tree initiation by means of ramp tests were conducted using newly developed electrode system with point-to-point structure. Constant voltage tests were also carried out with the electrode system to estimate the life time of the insulation. Results were analyzed using statistical method such as Weibull distribution.

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Mapping of the water Quality of lake by using Landsat TM Images (Landsat TM영상을 이용한 호수의 수질분포도 작성)

  • 박종선;최승필;최철순
    • Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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    • 2004.04a
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    • pp.285-290
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    • 2004
  • Sensors of Landsat detect different objects with different waves, so the range of water quality conditions can be accurately checked, and their images can be displayed in colors. The present study was conducted to measure the degree of clearness and depth and to detect elements from the surface water of Hwajinpo Lake. Based on these results, water quality of the lake was analyzed, and the range of water quality was drawn graphically. According to comparison outcomes, the new technique of detecting water elements from DN of Landsat TM images and drawing the range of water quality produced a far more accurate pattern for a wide area than the direct measurement. To display the pattern more clearly, the stretching technique in particular was very effective in the pattern analysis.

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A Study on the Costumes in a Portrait of the Buddhist Monk of the SONG KWANG Temple. (송광시 조사도에 나타난 복장에 관한 연구 - 색과 문양을 중심으로 -)

  • 안명숙
    • Journal of the Korean Society of Clothing and Textiles
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    • v.18 no.1
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    • pp.57-64
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    • 1994
  • This study investigates the costumes of the Most Reverend Priest, which shows a portrait of the Buddhist monk in Koryo dynasty, owned by SONG KWANG Temple. A surplice and a long sleeved Buddhist robe was chiefly shown up a portrait of a Buddhist monk. The purpose of this study find out the color, form, pattern, material, adornment of the costumes which is appeared a portrait, and also seek to changing process according to the times. the finding in this paper are ; * A surplice - color : red, green, yellow etc. form' big size surplice, provision surplice. pattern : no. material : unstriated silk. adornment' bolt, ribbon. * A long sleeved Buddhist robe- color : grey, blue, dark blue, pink, green, chestnut .etc. pattern : no. In comparison with a survery of previous studies of Buddhist comstumes, the color and type of the Koryo dynasty are more brilliant various color. In other words, the social status of monk in the Koryo is higher than present day.

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Comparison of White-naped Crane Habitat Use Pattern with Land-coverage Map in the Han-River Estuary and DMZ (한강하구에 도래하는 재두루미(Grus vipio) 서식지이용과 토지피복도 상관관계 연구)

  • Kim, Sung-Ok;Lee, Sang-Don
    • Journal of Environmental Impact Assessment
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    • v.17 no.4
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    • pp.255-262
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    • 2008
  • For the Han-river estuary and DMZ where white-naped crane (Grus vipio; endangered migratory bird) stopover or spend winter, the habitat composition and the habitat use pattern of white-naped crane were analyzed with the position data obtained by the satellite tracking method. By the use of geographic information system (GIS), the percent composition of seven habitat categories of white naped-crane data points (n=228) was analyzed. The chi-square test showed that the white-naped crane habitat use pattern was significantly different (p<0.05) from that of random points (n=228). It means that white-naped crane select and use particular habitat area in the Han-river estuary and DMZ.