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Electromyographic comparison of modified push-up exercise: focused on various arm position

  • Kim, You-Sin;Yang, Jae-Young;Lee, Nam-Ju
    • Journal of the Korean Applied Science and Technology
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    • v.35 no.1
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    • pp.36-42
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    • 2018
  • This study was to investigate the difference of muscle activities in trunk, upper arm, and shoulder during push-up exercise based on 3 types of different arm position(posterior position, PP; normal position, NP; and anterior position, AP) and to provide effective push-up arm position for each muscle development. Fifteen healthy males(age, $21.5{\pm}0.5years$; height, $172.7{\pm}1.0cm$; body mass, $70.5{\pm}1.3kg$; shoulder width, $42.3{\pm}0.6cm$; and BMI, $23.6{\pm}0.5kg/m^2$) participated in this study. PP, NP, and AP of the arm were used to conduct push-up exercise and 8 muscles(deltoideus p. acromialis: DA; pectoralis minor: PMI; pectoralis major: PMA; serratus anterior: SA; biceps brachii: BB; triceps brachii: TB; latissimus dorsi: LD; and infraspinatus: IS) of right side were selected to measure muscle activities. Total 9 counts of push-up exercise were conducted and EMG data signals of 5-time(from $3^{th}$ to $7^{th}$) push-up movement were used for measuring muscle activities. PP push-up exercise showed that there was a significantly higher muscle activity of DA, PMI, PMA, SA, BB, LD, and IS(p<.05) and AP push-up exercise showed a significantly higher TB activity(p<.05). It would be suggested that different arm position evokes various muscle activities when conducting push-up exercise. PP would be the best push-up arm position for inducing various trunk, upper arm, and shoulder muscle activities compared to NP and AP.

A Sensor nodes' Residual Energy based Wake-up Control Mechanism in Wireless Sensor Networks (무선 센서 네트워크에서 센서 노드의 잔여 에너지 기반 Wake-up 제어 메커니즘)

  • Jeon, Jun-Heon;Kim, Seong-Cheol
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.21 no.1
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    • pp.187-192
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    • 2017
  • In dense deployments of sensor nodes in Wireless Sensor Networks, the MAC protocol has challenges to solve problems such as reducing delivery delay and reducing energy consumption. To solve these problems lots of protocols are suggested. This paper proposed a sensor nodes' residual energy based wake-up control mechanism, in which each node decides whether it wakes up or stays in sleep mode to save energy consumption by reducing unnecessary idle listening. The main idea of the wake-up control mechanism is to save node's energy consumption. The proposed wake-up control mechanism is based on the RI-MAC protocol, which is one of the receiver-initiated MAC protocols. A receiver node in the proposed mechanism periodically wakes up and broadcasts a beacon signal based on the energy status of the node. A receiver node also adjusts wake-up period based on the traffics. Results have shown that the proposed MAC protocol outperformed RI-MAC protocol in the terms of energy consumption.

Effects of cognitive factors on brand attitude and behavioral intention across different fashion pop-up store formats (패션 팝업 스토어의 체험 유형에 따른 인지 요인이 브랜드 태도 및 행동 의도에 미치는 영향에 관한 연구)

  • Choi, Doree;Yu, Jihun
    • The Research Journal of the Costume Culture
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    • v.25 no.5
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    • pp.543-560
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    • 2017
  • The aim of this paper is to find which types of pop-up store positively influence consumers and to analyze the factors that affect brand attitude and behavioral intention across different fashion pop-up store formats. The data was collected from 217 respondents in their 20s and 30s and then subjected to descriptive statistical analysis, oneway ANOVA and regression analysis using SPSS Statistics. The results of the oneway ANOVA test indicated that the 'Pop-up store of alliance with different kinds of industries' is the most effective type for increasing brand preference and brand recognition amongst consumers. Some further insights can be made from the regression analysis results. There are differences between pop-up store formats in terms of the cognitive factors influencing brand attitude and behavioral intention. Moreover, there are differences between pop-up store formats in terms of brand attitude factors influencing behavioral intention. Through the results of this study, fashion companies can determine the best type of pop-up store to open depending on their aims. In conclusion, this study provides valuable insights to fashion marketers, helping them to determine the appropriate factors to consider when planning fashion pop-up stores. Academically, this paper contributes to expanding the range of research on fashion pop-up retail by studying consumer experiences of different pop-up store types.

A Study of the Hybrid Characteristics of Make-up - Focusing on Vogue Magazine - (메이크업의 하이브리드 특성 연구 - 보그(Vogue)지를 중심으로 -)

  • Lee, Youn-Jeong
    • Journal of the Korean Society of Costume
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    • v.60 no.1
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    • pp.91-100
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    • 2010
  • In the rapid development of science, technology, information, cultural industry during the 21st century, hybridity is consistently shown in which different techniques, systems, and sorts in society, industry, culture, and art are combined. The purpose of this study is to analyze the formative characteristics of hybrid make-up that is shown in the field of make-up as a practical art reflecting society and culture of a specific period, to understand the tendencies of modern make-up, and to present data for predicting changes in the future. According to the results of this study, the hybrid characteristics of make-up indicate as follows. First, hybrid make-up at a timely aspect in which senses transcending times by mixed expression of traditional classicism and modernism coexist and mingled, Characteristics of hybrid make-up at a local aspect are shown in one make-up by expressing modern tendencies that break from homogeneity, uniformity, and concentration as interests in other cultures and borrowing them in modern images. Also in modern period, characteristics of hybrid make-up at a cultural aspect are shown by mixed expression of conflicting cultural factors such as modern beauty of cutting-edge technology, female & male, and elegance & activeness in one makeup. Within the multiplex, modern social system in this period of cutting-edge technology, "tendency of hybrid design" as a social, cultural phenomenon is shown to be a complex, new designing tendency due to mixture and deconstruction of various genres. Hybrid make-up, seeking diversification and open-mindedness, is predicted to be consistently developed owing to infinite materials of design, being expected to be stronger and newer in the future.

Effects of Foreign Students' Entrepreneurship on Start-up Recognition and Intention

  • Hong, Seongsil;Yang, Young Seok
    • East Asian Journal of Business Economics (EAJBE)
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    • v.4 no.2
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    • pp.12-27
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    • 2016
  • This study aims to investigate the effects of foreign students' entrepreneurship on start-up recognition and intention. Due to the expanded policy of attracting foreign students with current Korean wave, it has rapidly increased the number of foreign students in Korea. The number of foreign students in Korea has increased from 50,000 up to 100,000 in 2012. Approximately half of number was resided in Seoul capital, surrounding satellite cities and followed by Kyeongsang, Chungcheong and Jeolla province regions. In this study, we examined the correlation of entrepreneurship with start-up recognition and intention of foreign students living in Daejeon city. The research model was constructed with entrepreneurship and start-up intention as independent and dependent variable, respectively, and start-up recognition as a moderating variable. Furthermore, the entrepreneurship of foreign students as independent variable contains innovativeness, pro-activeness, risk-taking and social responsibility. In the survey, we collected 119 responding foreign students belonging to KAIST, Chungnam National University and Hanbat National University and analyzed the correlations of these variables with 116 significant answers. To validate the hypotheses, linear regression analysis tool in SPSS program was used. As a result of the survey, entrepreneurship components such as innovativeness, pro-activeness, risk-taking and social responsibility affected start-up intention positively. In addition, start-up recognition as a moderating variable affected positively between entrepreneurship and start-up intention. However, it has the limitation to generalize the overall correlation of entrepreneurship with start-up recognition and intention for foreign students living in Korea because the survey was only performed in restricted Daejeon city area. Nonetheless, this study can be useful for understanding the foreign students's trait for entrepreneurship and planning the adequate entrepreneurship education.

Directional effects of close-up shot in Development of Narrative - Focusing on Animation - (내러티브 전개에서의 클로즈업 쇼트의 연출 효과 - 애니메이션을 중심으로-)

  • Lee, Tae-Gu
    • Journal of Digital Contents Society
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    • v.15 no.1
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    • pp.53-60
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    • 2014
  • Even if shots in frames may be variable in both movies and animations, close-up reveals the significance of the subject in the focus. Because directors and animators take the place the actor as character in animation while performance of actor plays an important role in the close-up in the movies, it is significant to understand the close-up in the animation. In the present study we investigate the dramatic effect of close-up in the animation narrative in animations for theaters. Among the various dramatic effects of the close-up, the natural flow of the narrative and the induction of immersing in emotion are focused. Descriptive close-up is analyzed as a dramatic effect of inducing the natural flow of the narrative. Psychological close-up is analyzed as the induction of immersing emotion by effective delivery of internal mental state of a character. By analyzing symbolic close-up as the induction of immersing in the play by producing a dramatic effect, we expect that the close-up contribute to the advance of animation narrative structure.

A Study on of Make-up Design with the Application of Genre Deconstruction in Hybrids (Ver. 1) (하이브리드의 탈 장르화를 응용한 메이크업 디자인에 관한 연구(제 1보))

  • Barng, Kee-Jung;Kim, Kyung-Hee
    • The Research Journal of the Costume Culture
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    • v.20 no.3
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    • pp.347-362
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    • 2012
  • Formatively and artistically aspect, a hybrid can be said to be a phenomenon in which two mutually different genres are combined. Make-up is thought to be very important to arrange the foundation available for predicting and pursuing a flow and direction of future hybrid make-up based on this, by analyzing a flow centering on hybrid trend, which was shown previously. In terms of objectives of this study, the first, aim is to suggest a model for researching make-up by grasping the developmental process and the characteristics of hybrid art through considering an art theory of hybridity, shown in make-up. The second, aim is to design make-up by analyzing trends in make-up style after deconstructing the hybrid genre. The modern make-up design through genre-deconstruction characteristics beyond diverse plurality and genre could be known to be highlighted as aesthetic characteristic by a slight attempt as communication of open space, which connects culture and genre, which had failed to be recognized and was neglected. Empirical research has, produced a work by systematically arranging make-up design. This study, identifies two kind of barrier demolition, such as the class deconstruction and the temporal, spatial disorder centering on genre deconstruction of hybrid. There are infinite possibilities in developing make-up design in line with modern sensation through aesthetic element and symbolic significance through genre deconstruction. It was the expression mode in future make-up, to providing basic data, and to strengthening competitive edge of culture and art.

A Study on Make-up Expression of Horror Character in Horror Movie (공포영화에 나타난 공포 캐릭터의 분장표현 연구)

  • Kim, Yu-Kyoung;Cho, Ji-Na
    • Journal of Fashion Business
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    • v.12 no.5
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    • pp.77-93
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    • 2008
  • The purpose of the study was to examine make-up expression elements of horror characters as an evil spirit, a vampire, a zombie, a monster and a psycho murderer through make-up, focused on horror movies of the United States after1960s. First, an evil spirit was expressed that the pupil grew dim without a focus and the skin was torn by going bad and rot completely. Also, it was expressed that its teeth was changed to pointed canine teeth as a wild beast and its pale and bloodless face showed blood vessels clearly. To express its bloodless and pale skin, air brush was swept into the skin over several times. Its canine tooth was made acryl powder into its shape and was harden to make its shape smooth. Also, it was colored to show people like the real thing. Second, a vampire was expressed by make-up elements as long nails, a sharp canine tooth, a pale skin with a blood vessel and dead eyes. Its rough skin and long nails were manufactured with latex foam, which was colored like the skin. Third, a monster image as a werewolf was expressed by make-up elements as fur, sharp teeth, changed nails and toenails, a rough skin and a face changed to a wolf. Rubber mask and rubber body suit were manufactured as a make-up of special character and so all its body was changed. Fourth, a psycho murderer and body-deformed man were expressed by make-up elements as a distorted mask, swelled-up and deformed skull and face form, terribly deformed body, discolored and hang down skin and teeth with an indeterminate form. Its body and face were manufactured by the foam latex technology according to make-up design as a make-up of special character.

The Impact of Start-up Support Programs on College Students' Foundation Motivation and Entrepreneurial Intentions (대학생 창업프로그램 지원이 창업동기와 창업의지에 미치는 영향)

  • Pang, Hyong-Wook
    • The Journal of the Convergence on Culture Technology
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    • v.7 no.4
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    • pp.599-605
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    • 2021
  • In this study, we empirically investigated how start-up support programs provided at colleges affect students' satisfaction with their major and their Entrepreneurial Intentions. The participants included 248 students from five colleges two-four-year colleges located in Seoul, Gyeonggi-do Province, Chungcheong-do Province, Gyeongsangbuk-do Province, and Jeola-do Province. SPSSWIN 24.0 for descriptive statistics analysis, exploratory factor analysis, reliability analysis, multiple regression analysis, and moderated regression analysis. showed that, among various forms of support for business start-up, support for education on start-up and support for start-up activities had a positive impact on the students' opportunity motivation and achievement motivation at a statistically significant level. opportunity motivation, achievement motivation, and independence motivation all positive influence on the students' resolution to start a business support for education on start-up and support for start-up activities had positive impact on the studens' entrepreneurial Intentions. These findings suggest that college programs that support students' business start-up need to be developed and applied with a focus on support for education on start-up and support for start-up activities to enhance college students' satisfaction with their major and stimulate their Entrepreneurial Intentions.

Creative Imitation as Catch-up Strategy: A Business Model

  • Lee, Seung-Hyun;Kwon, Youngkwan;Lee, Ji Hye;Park, Young-Il
    • Asian Journal of Innovation and Policy
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    • v.5 no.1
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    • pp.1-18
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    • 2016
  • Catch-up is a well-known and familiar terminology for innovation scholars in developing countries such as Taiwan, Korea and China. The strategy, however, is too difficult to perform in each industry. This study looks into a catch-up strategy that Apple and Xiaomi used and examines the results on the creative imitation of business model in the smartphone industry. It is quite surprising that even Apple is based on catch-up strategy. They wanted to catch-up Nokia. Our case study shows that these two companies quickly caught up with the leaders, and the common feature of their strategy is characterized as creative imitation of business model. Creative imitation of business model is different from creative imitation of innovation. Furthermore, this research confirms that the creative imitation of business model leads to aggressive creative innovation.