• (The) Research of the performance art and culture
• /
• no.33
• /
• pp.9-31
• /
• 2016

Shin Gwang-su (申光洙, 1712~1775), also known as Seokbuk (石北), is a well-known poet and author of the song poetry (詩唱) "Gwanseo-akbu (Poems of the Gwanseo Region, 關西樂府)" in the late Joseon Dynasty. "Gwanseo-akbu" was popular among the Joseon Dynasty musicians. This fact confirms that the tradition of adding a melody to Shin Gwang-su's "hansi (Korean poetry recorded in Chinese characters, 漢詩)" already existed in the Joseon Dynasty. It is also a proof that the hansi poem was used in songs. Besides Seokbuk, other literary figures in the Joseon Dynasty wrote and sang hansi. In that case, the place of communication for songs was a poet's personal study, or "sarangbang." But when, like the works by Seokbuk, poems were sung by musicians, they became available to the public to communicate through music. This study is one of the attempts to re-make Seokbuk Shin Gwang-su's poems and songs, once popular among the Joseon Dynasty people, into the contemporary music that can be performed on stage. By adding a certain melody to his poems, this study introduces a case of musical work and offers an opportunity to consider hansi as performance art. There is a number of hansi works by Shin Gwang-su, and each poem includes material which can help survey Shin Gwang-su's musical life. And, working on his hansi works makes it possible to narrate major events that took place in Shin's life. Thus, this study attempts to focus Shin Gwang-su's musical life and introduces methods and contents to stage his hansi poems as performance art.

• Proceedings of the KIEE Conference
• /
• 2002.11d
• /
• pp.353-355
• /
• 2002

This paper describes the pantograph design result for tilting train at conventional railway. EMU(Electrical Multiple Unit) Tilting Train is important tilting pantograph. Tilting train pantograh should be operated to commercial service speed 180Km/h of 200Km/h at KNR upgrade railroad. This paper is write tilting train pantograph control system.

• Bulletin of the Korean Space Science Society
• /
• 2002.05b
• /
• pp.32.1-32
• /
• 2002

• Proceedings of the KIEE Conference
• /
• 2007.07a
• /
• pp.1520-1521
• /
• 2007

고분자 전해질 연료전지(PEMFC, polymer electrolyte membrane fuel cell)는 수소이온특성을 갖는 고분자막을 전해질로 사용하는 연료전지로서 무공해 차량의 동력원, 가정용 발전, 우주선용 전원, 군사용 전원 등 매우 다양한 부분에서 사용되어질 것으로 사료된다. 하지만 현재 높은 가격과 짧은 수명 등의 문제로 상용화에 이르지 못하고 있다. 고분자전해질 연료전지의 스택 가격을 부품별로 조사하여 보면 분리판이 전체 스택가격의 60% 정도가 가장 높은 비중을 차지하며 기체 확산층으로 사용되는 탄소재료가 12%,전해질이 10%, 촉매가 8% 정도를 차지한다. 촉매 또한 저가의 비귀금속 촉매를 개발하거나 백금 촉매의 성능을 향상시켜 촉매 사용량을 낮춤으로써 가격을 낮추기 위한 연구가 진행되어지고 있으며 전해질로 사용하는 고분자막도 가격이 매우 높은 Nafion 대신 저가 고분자를 개발하거나, 또는 가능한 얇은 전해질을 사용하기 위한 노력이 이루어지고 있다. 하지만 아직까지는 뚜렷한 진척성과가 없는 것으로 알려져 있다. 그래서 본 연구에서는 고분자 전해질 연료전지의 고분자 Membrane의 특성을 향상시키고 또한 박막의 배양성과 특성에 대해서 고찰해 보고자한다.

• Convergence Security Journal
• /
• v.6 no.1
• /
• pp.65-74
• /
• 2006

In this paper, the definition of mobile virtual network operator (MVNO), business situations of operators, regulations, and main benefits are analyzed to discuss the introduction of MVNO system in Korea. In addition to, the analytical hierarchy process (AHP) is performed to study the efficient business model for MVNO under the government's regulation. The three alternatives such as self-regulation, partial-regulation and full refutation are considered for the main criteria of competitiveness activation, investment increment, and economics.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
• /
• 2014.04a
• /
• pp.662-663
• /
• 2014

In most vehicle manufactures have traditionally relied on find-fix method of human auditor, mainly due to variation excitation source. To solve the BSR noise, the requirements for BSR test are presented in terms of detection of noise source, analysis of time-frequency and sound pressure, sound quality for noise. A number of new technology direction, particularly in the field of noise source identification application and psycho-acoustics from the Zwicker's sound quality parameter, the computed objective sound metrics and subjective jury test result.

• Journal of the Korean Magnetic Resonance Society
• /
• v.3 no.2
• /
• pp.127-139
• /
• 1999

In this paper we discussed how multiple quantum coherences evolve in the presence of anisotropic distribution of dipolar couplings. The magnitude of dipolar couplings were varied by changing the tile angle of crystal axis. The stronger was dipolar coupling, the higher was frequency of multiple quantum coherence. That is, the order of multiple quantum coherence varies in proportion to the magnitude of dipolar couplings. The theoretical prediction for the multiple quantum coherence at magic angle 54.7$^{\circ}$ in solid NMR spectroscopy was verified in this study. The excitation pattern of n-quantum coherence, which can induce the effective size to characterize spin system, is expected in a larger and more complicated spin system for understanding of the relation of dipolar coupling and multiple quantum coherence.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
• /
• 2010.05a
• /
• pp.72-73
• /
• 2010

In this paper, the main noise sources and its radiated noise levels of upwind horizontal-axis wind turbines are experimentally and theoretically investigated. Theoretical predictions for indentifying the dominant source locations are made by using the empirical noise prediction model of Brooks et al. (1989) for the airfoil self noise. Through the comparison of theoretical results with the experimental results, turbulence-boundary-layer-trailing-edge (TBL-TE) noise is revealed to be the dominant source over all frequency range and separation and stall (S-S) noise is possibly important in the relative lower frequency range compared with TBL-TE noise.

• Proceedings of the KIEE Conference
• /
• 2002.11d
• /
• pp.350-352
• /
• 2002

In order to speed up basic concept is to enhance high speed, curve limit speed, cross limit speed, acceleration/deceleration speed. It is important to optimal interface, fundamental technology of vehicle, rail, electrical power, and signal system. Tilting train has advantage minimizing investment cost of infra railway system for increasing train limit speed in curve. the developed tilting train should be operated to commercial service speed 180km/h of 200km/h at KNR upgrade railroad. This paper proposed the basic model of system engineering for developing of tilting EMU(maximum operation speed : 180km/h) with speed-up of conventional railway system.

• Proceedings of the KIPE Conference
• /
• 2017.07a
• /
• pp.341-342
• /
• 2017

본 논문에서는 초저온 냉동고용 단상유도전동기의 기동전류저감을 위한 알고리즘을 제안한다. 단상유도전동기의 경우, 스스로 기동이 불가능하므로 다양한 기동방식을 채택하고 있다. 본 논문에서는 커패시터 기동-운전 방식을 사용하고 있으며, 이 경우 기동 시 정격전류의 수배에 해당되는 돌입전류가 발생한다. 이로 인해 커패시터 및 기동 보조장치의 운전성능 및 수명 감소에 직접적인 영향을 미친다. 따라서 본문에서는 기존 운전방식의 변경 없이 단상 인버터를 적용하여 기동전류를 저감하고 운전모드를 전환하는 알고리즘을 제안하고자 한다. 제안한 알고리즘의 효용성은 다양한 실험을 통해서 검증한다.