• Proceedings of the Acoustical Society of Korea Conference
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• autumn
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• pp.131-134
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• 1999

This paper considers the acoustical characteristics of the mechanical valve employed in the Korean type Artificial Heart. $Bj\"{o}rk-Shiley$ tilting disc valve was chosen for the study and acoustic measurements were performed for the artificial heart operated in a mock circulation system as well as implanted to an animal as a Bi Ventricular Assist Device (BVAD). In the mock system, three different conditions of the valve were examined which were normal, damaged (torn off), pseudothrombus attached. Microphone measurements for the BVAD were carried out at a regular time interval for 5 days after the implantation operation. Of the recorded acoustic emissions from the artificial heart, click sounds mainly originated from the valves were further analyzed using Multiple Signal Classification (MUSIC) for estimating their spectral properties. It was shown that the spectral peaks below 4 kHz and the optimal order number for MUSIC, equivalent to the number of the spectral component, might be the key parameters which were highly correlated to the physiological states of the valve like the mechanical damage of the valve or the formation of thrombus on the valves.

• Journal of Korean Biological Nursing Science
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• v.17 no.3
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• pp.271-276
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• 2015

Purpose: This study was to evaluate the effects on the heart rate and respiration rate of preterm infants when providing auditory stimulation on them. Methods: The design of this study was a nonequivalent control group pretest-posttest design in a quasi experimental study. Forty preterm infants were assigned to experimental and control groups : 20 in the auditory and 20 in the control group. The data were collected from May 2014 to October. The auditory stimulation was created by using an audio music tape provided 20-minute per day for 7 consecutive days. In data analysis, SPSS WIN 21.0 program was utilized for descriptive statistics, repeated measurement anova and Mann-Whitney. Results: General characteristics of the two groups showed no significant differences, thus two groups were found to be homogenous. There were no significant differences in heart rate and respiration rate between the auditory and control groups. Conclusion: The effect of auditory stimulation for 7 days was not effective in decreasing heart rate or respiration rate in premature infants. Therefore, the type and length of music therapy must be developed for the improvement of vital signs in preterm infants who were hospitalized in a neonatal intensive care unit.

• The Korean Fashion and Textile Research Journal
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• v.12 no.2
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• pp.149-155
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• 2010

The advanced and complicated modern society recognizes image creation based on the identity of the global competitive age as the important means. The requirement for a new vision to the globally environmental problem has affected on design so that as environmentally-friendly products and technologies have been developed and original expression modes have been appeared which the medium of paper which is natural material, paper has been highlighted newly. Hanji made of mulberry fiber, a bast fiber of mulberry is a representative environment-friendly natural fiber. In addition, it has various functions similar to those of yellow earth such as emission of far infrared rays, antibiosis, deodorization, fast dry ability of sweat, and simple dyeing ability. It is Hanji threads that are produced from various processes of Hanji materials. Therefore, hanji threads are able to be both woven and knitted still remaining Hanji's excellent characteristics. In addition, it is light, bio-degradable, durable and washable, and it is an environment friendly product with the distinguished texture and sensitivity. Under the concept of 'Circle' designed the uniforms of music hall to inform that the uniforms as a media representing music hall represents the unique Sori Arts Center of Jeollabuk-do traditional style.

• Journal of the Korea Fashion and Costume Design Association
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• v.18 no.3
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• pp.129-144
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• 2016

The purpose of this study is to identify current trends in hip-hop fashion in korea and how they are influenced by musical characteristics of female hip-hop. This study considers the relationship between female hip-hop music and their fashion through the history of hip-hop. Data has been collected and analyzed from broadcastings, performances, music videos, and album jackets of female musicians who appeared in the cable television program 'Unpretty Rapstar' by MNET during two seasons in 2015. "Unpretty Rapstar" is the first program to focus on the music and fashion of female Korean hip-hop musicians. For the theoretical review, this article examines books and journal articles, which provide insight into the history and formation of hip-hop. It also analyzes the hip-hop styles of female musicians in Korea through Hiphopplaya.com, an Internet site specializing in hip-hop. the results of the analysis of the fashion of female Korean hip hop musicians is as follows: The characteristics of the styles of female hip-hop artists come out of Glam Style, which emphasizes femininity, but is also composed of a practical and dynamic street casual style. Most of the clothes are skinny jeans and sweat suits with vertical and slim-fit silhouettes or stadium jackets and jersey jackets with oversized silhouettes. The main colors of these outfits are prominently yellow and red with darker grayish tones, but also include natural achromatic colors.

• The Journal of the Acoustical Society of Korea
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• v.24 no.3
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• pp.178-185
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• 2005

This paper presents a new music identification method using probabilistic and dynamic characteristics of melody. The propo3ed method uses pitch and MFCC parameters as feature vectors for the characteristics of music notes and represents melody pattern by pitch histogram and temporal sequence of codeword indices. We also propose a new pattern matching method for the hybrid method. We have tested the proposed algorithm in small (drama OST) and broad (1.005 popular songs) search spaces. The experimental results on search areas of OST and 1,005 popular songs showed better performance of the proposed method over conventional methods. We achieved the performance improvement of average $9.9\%$ and $10.2\%$ in error reduction rate on each search area.

• Journal of Digital Convergence
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• v.14 no.8
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• pp.383-391
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• 2016

Purpose: This study was conducted to analyze the effect of ego resilience, peer attachment and mobile phone-related characteristics on mobile phones functional uses, focused on the use of SNS & messenger and music and internet in middle school students. Methods: The subjects were 217 middle school students in 2 cities. Results: The factors affecting mobile phones SNS & messenger usages were interpersonal relation, viability of ego-resilience in male, and communication of peer attachment in female. The factors affecting internet usages were curiosity of ego-resilience in both sexes. The factors affecting music usages were viability of ego-resilience in both sexes. Conclusion: Education and management about mobile phone functional use should be made, by intervening reflected subregions effect factors of peer attachment and ego-resilience.

• Journal of Korea Multimedia Society
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• v.13 no.11
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• pp.1728-1738
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• 2010

Pyeon-gyeong, similar to Chinese Bianqing, is a Korean traditional lithophone with multiple stone chimes. Due to the temperature- and humidity-insensitive characteristics of its material, pumice stone, the instrument provides highly stable pitch and therefore has played a key role in Korean traditional court music. By reason of having absolute pitch, it is an important part of the research on the standard pitch and scale system of korean traditional music, but as an instrument, the study on the sound characteristics and worth is not making satisfactory progress, to date. This research is an analysis paper for physical modeling synthesis of pyeongyeong. Through this study, we will determine the original characteristics of the timbre of pyeongyeong as a unique korean traditional percussion, and investigate these characteristics objectively, based on the music acoustics by scientific analysis. Furthermore, this study will be used as an important basic material for physical modeling synthesis of pyeongyeong, and also make a huge contribution to the cultural applicability by the vitalization of graft onto the various artistic creation field, through the comprehension of the timbre of pyeongyeong as an instrument.

• Journal of the Korean Society of Costume
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• v.39
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• pp.197-215
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• 1998

Vivienne Westwood, the revolutionary cre-ator of Punk fashion(ripped T-shirts, bondage clothes, fetishist accoutrements) was a street fashion designer. Although Westwood's clothes have frequently been described as decadent, degenerate and unwearable, they have also exerted a powerful influence on interntional fashion. Westwood became a fashion designer in the mid-1970s, when he emergence of Punk put London back on the fashion map for the first time since 1965. Just as the Mods, Rockers, and Hippies of the 1960s had embraced par-ticular styles of dress and music, so also did the Punks create their own subculture. The Punk“style in revolt”was a deliberately“re-volting style”that incorporated into fashion various offensive or threatening objects like tampons, razor blades, and lavatory chains. Vivienne Westwood and parter Malcolm McLaren articulated this youth culture, who roots lay in music. A sign is something which stands for some object or idea, while the semiotics are the ex-ternal expression for an internal meaning. Semiotics can be used as a medium of communication between dress and music. A language is simply used for explicit of meaning, while the style of dress and music express the explicative and implicative signs. Peirce's scheme among several theories of the semiotics was chosen for this study, because the Peirce's scheme was the first non-language communication medium between external and internal stages, and readily inter-preted the styles of dress and music. Punk rock was studied at first to identify the style which influenced Vivienne Westwood's works and then Semiotics were used to apply the above results to the 1970s and 1990s for analyzing and interpreting the Vivienne Westwood's works were also interpreted by the symbolic characteristics of Semiotics, because the symbol of semiotics often found at Youth Cults reflected punk rock. The symbol of revolt, decadence, grungy, freedom in Vivienne Wes-twood's works wre determined by using Punk rock's semiotics. This study could conclude that the style of dress and punk rock were able to be interpreted by semiotics.

• Trans-
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• v.8
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• pp.55-78
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• 2020

Among various tools for pop music composition, what is most frequently used by K-Pop composers is the digital sequencer program, or DAW software (Digital Audio Workstation). When it comes to making commercial music such as K-Pop, the proportion of using these programs is extremely high. By using those software, composers come to undergo an entirely different art creation process. User interface (UI) of the DAW software has a profound effect on the process of making music, particularly vis-a-vis usability and visibility. This study is an attempt to analyze the Avid Pro Tool's UI with a focus on its inherent characteristics revealed in relation with the real effect throughout music composition. This study categorizes the UI elements in the Edit Window of the Pro Tools as Grid, Track, Slip, Clip, and Fade. Those categorized elements would be analyzed through Douglas Morgan's Creative-Process theory, thereby clarifying how visual interface of the DAW software functions in music composition practically.

• Journal of the Korean Society for information Management
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• v.36 no.2
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• pp.223-254
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• 2019

The research on the archiving performing arts has recently been conducted on various aspects in Korea, but there has been no research or attempts to build a digital archive that can systematically identify the information on classical music performances in one place and get the past performance information. In this study, we proposed a participatory archive portal for providing, preserving and servicing information on all classical music performances, and tried to design the functions based on the requirements of the performance archive portal identified in previous research. We identified and proposed functional requirements of the portal, reorganized the characteristics of classical music performance information, and designed metadata elements. Then we presented the design and implementation direction of search and facet navigation, as well as user participation and communication functions. Lastly, we developed a prototype that implemented the requirements of the interface.