• 제목/요약/키워드: classical means

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『소문(素問)·영란비전론(靈蘭秘典論)』의 "간자(肝者), 장군지관(將軍之官), 모려출언(謀慮出焉)."에 대한 고찰 -간(肝)의 기능과의 연관성을 중심으로- (A Study on the Metaphor "Liver is the Admiral from which Strategic Planning is derived" in 『Suwen Linglanmidianlun』 -Focusing on its Association with Liver Function-)

  • 안진희;신상원;윤은경
    • 대한한의학원전학회지
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    • 제33권1호
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    • pp.159-178
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    • 2020
  • Objectives : The purpose of this paper is to study the metaphor that the liver is the admiral from which strategic planning is derived in 『Suwen Linglanmidianlun』 in relation to Liver function. Methods : Annotations to the verse along with descriptions of strategic planning in classical texts and their relation were examined. Results : Previous annotators described the Admiral organ and Strategic Planning separately, in which it is difficult to fully explain the totality the two. They cannot be separated from each other, and only when they are in dependence of each other can they become complete. Liver function as described in classical texts and contemporary text books such as detoxification and sterilization all embody this meaning of strategic planning of an admiral. Conclusions : Reinterpretation of the Liver function based on an integrated understanding of the Liver as described in 『Suwen Linglanmidianlun』 is required. This will allow for better understanding of what the metaphor means, and to better connect this description to Liver physiology for an integrated understanding of the Liver itself in Korean Medicine.

디젤기관 추진축계의 연성진동에 관한 연구 (제2보: 강제 감쇠 연성진동 해석) (Studies on Coupled Vibrations of Diesel Engine Propulsion Shafting (2nd Report : Analyzing of Forced Vibration with Damping))

  • 이돈출;김의간;전효중
    • 한국마린엔지니어링학회:학술대회논문집
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    • 한국마린엔지니어링학회 2000년도 추계학술대회 논문집(Proceeding of the KOSME 2000 Autumn Annual Meeting)
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    • pp.99-107
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    • 2000
  • With the results of calculation for natural frequencies, the forced reponses of coupled vibration of propulsion shafting were analysed by the modal analysis method. For the forced response analysis, axial exciting forces, axial damper/detuner, propeller exciting forces and damping coefficients were extensively investigated. As the conclusion of this study, some items are cleared as next. - The torsional amplitudes are not influenced by the radial excitation forces. - The axial vibrational amplitudes are influenced by the tangential exciting forces. An increase of amplitude is observed for the speed range in the neighbourhood of any torsional critical speed. - The coupling effect becomes larger if torsional and axial critical speed are closer together. - The axial exciting force of propeller is relatively strong, comparing with those of axial forces of cylinder gas pressure and oscillating inertia of reciprocating mechanism. Therefore, as a resume one can say, that- Torsional vibration calculation with the classical one dimension model is still valid. - The influence of torsional excitation at each crank upon the axial vibration is impotent, especially in the neighbourhood of a torsional critical speed. That means that the calculation of axial vibration with the classical one dimension model is insufficient in most of cases. - The torsional exciting torque of propeller can be neglected in most of cases. But, the axial exciting forces of propeller can not be neglected for calculating axial vibration of propulsion shafting.

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Dynamic analysis of frames with viscoelastic dampers: a comparison of damper models

  • Lewandowski, R.;Bartkowiak, A.;Maciejewski, H.
    • Structural Engineering and Mechanics
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    • 제41권1호
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    • pp.113-137
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    • 2012
  • Frame structures with viscoelastic (VE) dampers mounted on them are considered in this paper. It is the aim of this paper to compare the dynamic characteristics of frame structures with VE dampers when the dampers are modelled by means of different models. The classical rheological models, the model with the fractional order derivative, and the complex modulus model are used. A relatively large structure with VE dampers is considered in order to make the results of comparison more representative. The formulae for dissipation energy are derived. The finite element method is used to derive the equations of motion of the structure with dampers and such equations are written in terms of both physical and state-space variables. The solution to motion equations in the frequency domain is given and the dynamic properties of the structure with VE dampers are determined as a solution to the appropriately defined eigenvalue problem. Several conclusions concerning the applicability of a family of models of VE dampers are formulated on the basis of results of an extensive numerical analysis.

THE USE OF THE TECHNIQUE IN BOTH CLASSICAL AND FOLK SONG IN OCCIDENTAL SINGING

  • Naidich, Susana
    • 대한후두음성언어의학회지
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    • 제2권1호
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    • pp.15-19
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    • 1986
  • Our report refers to occidental vocal techniques from Greece until today. It is remarkable that even with poor anatomy knowledge, there were advices on styles given from very early periods, for both church and secular singing. During the 18th century, the names of "vox pectoris", "vox guturris" and "vox capitis" appear, nominations that somehow remain nowadays with great confusion about source of sound production and results of resonance. Vocal occidental styles developed different kinds of requirements from the singers, that had to adapt their vocal Possibilities to them. The same happened with "pop" song. Nowadays, all kinds of singers must have a conscious knowledge of its voice management to prevent vocal disturbances. We consider that the technique is the same, even when the singer has to sing Wagner, Debussy, Sconberg, Piazzola or Gershwin. The big changes occured at resonance levels, and because these different use of the vocal resonators the effects are quite different. In summary, the big differences on classical the effects are quite different. In summary, the big differences on classical and pop song are done on the different use of the resonators and its effects on the vocal tract. "Pop" singers, men and women, should be taught to use both registers, "modal" and "falsetto" to be able to reach the complete range of their songs without any harm to their larynxes. In our opinion, a good singing technique means that it could be adapted to every stylistic need. The same technique is adapted to the popular singer as well. The main difference lays on the use of resonators, pretty strong in the classic singer, weaken in the popular singer, on the volume and on the total extension of the voice. Breathing control, effortless emission and the use of "passage" at the right point should be taught to all singers, regardless of their style. (omitted)

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풍류의 장, 안의삼동(安義三洞) 누정(樓亭)과 선비문화의 현대적 활용 (Modern application of Nu-jung, a place of taste for the arts, of Aneuisamdong and the culture of classical scholar)

  • 김형석;심우경
    • 헤리티지:역사와 과학
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    • 제48권2호
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    • pp.48-63
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    • 2015
  • 본 연구는 안의삼동의 누정을 중심으로 우리나라 누정에 대한 관심을 환기시키고 그 활용방안을 모색해 보고자 하는 목적에서 출발 하였으며, 누정이라는 물리적 공간을 매개로 선조들의 풍류문화와 선비문화를 활용하여 누정의 활성화 방안을 제시하고자 하였다. 누정을 활성화하기 위한 구체적인 방법으로는 풍류와 선비문화의 주요 소재인 바둑을 이용하여 활용하는 방안과 누정의 운치를 더해주는 프로그램을 기획함으로써 활용도를 높이는 방안을 제시하였다. 바둑이라는 소재를 누정이라는 공간으로 옮겨 옴으로써 풍류와 선비문화의 체험은 물론이고 지역 홍보 및 경제적 효과까지 기대할 수 있는 방안으로 제시하였으며, 정적인 공간인 누정에서 풍류 선비문화의 소재를 '달'이라는 매개체와 접목하여 야간 프로그램, 1박 2일 프로그램, 맞춤형 프로그램 등을 기획하여 시행하는 방안이다. 이상의 방안은 전국에 산재한 누정에 대부분 적용할 수 있는 방안으로 그만큼 우리나라에 누정이 많다는 말이 되고, 동시에 문화재 활용을 위한 콘텐츠가 풍부하다는 것으로 해석할 수 있다. 이제는 이러한 콘텐츠를 다양한 학문분야와의 연계를 통해 어떻게 개발하여 활용할 것인가가 문화재 관리에 있어서 중요한 부분이 될 것이다. 단순히 문화재를 이용하는 수준에서 벗어나 문화원형에 대한 가치를 이해함으로써 보다 수준 높은 활용이 이루어질 수 있다. 이를 위해서는 학제간의 지속적인 연구를 통해 문화재 보존이 뒷받침 되어야 할 것이다.

『황제내경(黃帝內經)』에서 사용된 '심(心)'자(字)의 용례 분석 연구 (A Study on the Use and Meaning of the '心' Letter in 『Hwangjenaegyeog』)

  • 박재용
    • 한국콘텐츠학회논문지
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    • 제21권5호
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    • pp.824-836
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    • 2021
  • 본 연구에서는 『황제내경(黃帝內經)』에 사용된 '심(心)'자(字)의 활용과 그 의미를 살펴보았다. 한자에서 '육(肉)'은 육체를 상징하는 기호이다. 오장을 표현하는 간(肝), 비(脾), 폐(肺), 신(腎)의 글자는 모두 '육(肉)'의 형태를 포함하고 있어서 의미적인 혼동을 일으키지 않는다. 그러나 심장과 마음을 의미하는 한자는 모두 '심(心)'으로 쓰이기 때문에 그 의미를 파악하는 데 어려움이 있다. 또한, 『황제내경(黃帝內經)』의 내용은 질병부터 천문학에 이르기까지 다양한 분야를 총망라하고 있다. 이러한 이유로 『황제내경소문(黃帝內經素問)』에서 사용된 총 286개의 '심(心)'자는 다양한 의미를 내포하고 있다. 본 연구의 결과에 의하면, '심(心)'의 용례는 첫째 인간의 심장, 둘째 인체의 흉부, 셋째 마음을 의미한다. 넷째, 초월적인 개념의 깨달음, 다섯째 심포(心包), 여섯째 논리적인 사고, 일곱째 중심 또는 핵심, 그리고 마지막으로 별자리를 의미한다. 본 연구의 결과는 추후 『황제내경영추(黃帝內經靈樞)』 뿐만 아니라 고전 문헌들에서 '심(心)'의 의미를 파악하는 데 도움이 될 수 있을 것으로 생각된다.

거래비용 관점으로 본 클래식 음악공연 관람수요 (Demand for Classical Music Concerts from Transaction Cost Perspectives)

  • 이창진;김재범
    • 문화경제연구
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    • 제17권2호
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    • pp.3-28
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    • 2014
  • 공연예술 수요는 가격 이외의 사회 경제적 요인들 그리고 교육과 경험 지식 같은 문화자본의 영향을 받는다고 알려져 있다. 공연에 대한 지식과 경험과 관련하여 본 연구에서는 개별 공연이 가지는 정보가 수요에 미치는 영향을 거래비용 관점에서 분석하려 하였다. 이를 위해 실제 공연장 자료를 바탕으로 연구 모형을 회귀분석을 이용하여 선택된 공연의 장르, 가격, 인지도 등의 요소가 유료관람객 수에 준 영향을 실증 분석한 결과, 거래비용 특성에 따라 수요가 달라짐을 알 수 있었다. 그리고 일반적으로 가격과 수요는 반비례 관계로 알려져 있으나, 분석 결과 일정 가격 이상에서는 정비례 관계로 나타났다. 이 결과를 해석해보면, 가격이 상품의 질을 평가하는 정보로 사용된 것으로 볼 수 있으며, 관객이 공연관람을 통하여 얻을 수 있는 기대효용에 가격이 영향을 미치는 것을 의미한다. 상기한 분석결과를 통하여 공연의 가격에 따른 소비자의 거래비용의 경향을 확인할 수 있었다. 또한 분석 결과가 순수한 공연 관람 이외의 사회적 맥락의 소비라는 이론을 뒷받침할 수 있는 가능성을 보여주었다.

The statistical two-order and two-scale method for predicting the mechanics parameters of core-shell particle-filled polymer composites

  • Han, Fei;Cui, Junzhi;Yu, Yan
    • Interaction and multiscale mechanics
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    • 제1권2호
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    • pp.231-250
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    • 2008
  • The statistical two-order and two-scale method is developed for predicting the mechanics parameters, such as stiffness and strength of core-shell particle-filled polymer composites. The representation and simulation on meso-configuration of random particle-filled polymers are stated. And the major statistical two-order and two-scale analysis formulation is briefly given. The two-order and two-scale expressions for the strains and stresses of conventionally strength experimental components, including the tensional or compressive column, the twist bar and the bending beam, are developed by means of their classical solutions with orthogonal-anisotropic coefficients. Then a new effective mesh generation algorithm is presented. The mechanics parameters of core-shell particle-filled polymer composites, including the expected stiffness parameters, minimum stiffness parameters, and the expected elasticity limit strength and the minimum elasticity limit strength, are defined by means of the stiffness coefficients and elasticity strength criterions for core, shell and matrix. Finally, the numerical results for predicting both stiffness and elasticity limit strength parameters are compared with the experimental data.

Critical Scaling Behavior of Barkhausen Avalanches in Ferromagnetic Nanothin Films

  • Shin, Sung-Chul;Kim, Dong-Hyun;Choe, Sug-Bong;Ryu, Kwang-Su;H. Akinaga
    • 한국자기학회:학술대회 개요집
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    • 한국자기학회 2003년도 하계학술연구발표회 및 한.일 공동심포지엄
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    • pp.260-261
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    • 2003
  • It is recognized that the magnetization reverses with a sequence of discrete and jerky jumps, known as the Barkhausen effect. Recently, interest in the Barkhausen effect has grown as it is a good example of dynamical critical behavior, evidenced by experimental observation of a power law distribution of the Barkhausen jump size. So far, most experimental studies have been carried out on bulk samples using a classical inductive technique, which is difficult to apply to thin film samples mainly due to the ]ow signal intensity. For this reason, very few experiments have been done on two-dimensional ferromagnetic thin films. In this talk, we report a direct domain observation of Barkhausen avalanche at criticality in Co and MnAs thin films investigated by means of a magnetooptical microscope magnetometer (MOMM), capable of time-resolved domain observation with an image grabbing rate of 30 frames/s in real time. In Fig. 1, we demonstrate a series of six representative domain-evolution patterns of 25-nm Co film observed successively by means of the MOMM, where one can directly witness Barkhausen avalanche.

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Assembly strategies of wind turbine towers for minimum fatigue damage

  • Nunez-Casado, Cristina;Lopez-Garcia, Oscar;de las Heras, Enrique Gomez;Cuerva-Tejero, Alvaro;Gallego-Castillo, Cristobal
    • Wind and Structures
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    • 제25권6호
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    • pp.569-588
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    • 2017
  • The aim of this paper is to present a method to obtain the dynamic response of a wind turbine tower in time domain by means of the generation of time series and to estimate the associated fatigue damage by means of a Rainflow counting algorithm. The proposed method is based on assuming the vortex shedding is a bidimensional phenomena and on following a classical modal superposition method to obtain the structure dynamic response. Four different wind turbine tower geometric configurations have been analyzed in a range of usual wind velocities and covering extreme wind velocities. The obtained results have shown that, depending on the turbulence intensity and the mean wind velocity, there are tower geometric configurations more advantageous from the fatigue load standpoint. Consequently, the presented model can be utilized to define assembly strategies oriented to fatigue damage minimization.