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이석원 낭만음악사 2003 낭만음악 Vol.- No.58
지금까지 악기 음향학에서 다루었던 현악기와 건반악기 관악기는 대부분 시대적 필요에 따라 구조와 기능이 바뀌었음을 보았다. 이들 악기는 서양 고전음악 문화의 산물이며, 음악양식의 변화에 따라, 또 연주 환경이 달라짐에 따라 악기와 연주법 역시 변화하였음을 말해준다. 그러나 인간의 목소리는 어느 시대, 어느 지역에든 공통적으로 있어온 악기이다. 아담 스미스가 “노래와 춤은 인간의 가장 기본적인 본능”이라고 말했으리만큼, 인간은 동서고금을 막론하고 본능적으로 목청을 이용해 노래를 불러왔다. 이 연재의 마지막 회가 될 이번 장에서는 인성을 낼 수 있는 악기로서 인체의 구조와 기능, 그리고 인성의 여러 가지 요소에 관해 살펴본다.
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두 대의 여유자유도형 로봇 매니퓰레이터를 위한 충돌 회피 동작 계획
이석원 朝鮮大學校 電子情報通信硏究所 2003 電子情報通信硏究所論文誌 Vol.6 No.2
An algorithm is suggested for collision-free motion planning of two redundant robot manipulators using redundancy. End-effectors of each redundant robot should move along each prescribed straight path to complete the given task, while avoiding collision with each other. Self-motion, defined as motion of each axis not to change the position and orientation of end-effector, is utilized in order to solve this problem. At each sampling time, self-motion is executed with the view to making farther between the links of each arm. Simulation results for two redundant robot manipulators, which has 9-d.o.f. respectively, are presented to show the efficacy of the algorithm.
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沖積層粘土의 沈下特性에 關한 硏究 (基1) : 洛東江, 蔚山 太和江, 釜田川의 河口平野를 中心으로
李錫遠 東亞大學校 1970 東亞論叢 Vol.7 No.-
本論文은 沙上의 工業團地造成, 蔚山의 産業道路策造 및 都市形成과 釜田川의 凡一地區 計劃等에 따른 基礎地盤調査와 最終沈下量 그리고 沈下에 經過하는 時間推定의 硏究이다. 첫째로, 現地의 土性 및 狀態把握과 土層의 構成 및 地盤圖의 調査 둘째로, 推定되는 沈下量에 對한 一次 壓密比와 休積壓縮係數 및 壓密指數와 WL~Cc에 對한 究明을 目的으로 한다. 卽 이러한 要旨로써 綜合的인 沖積層粘土의 試驗結果는 土質力學上 重要한 意味를 內包하고 있으며, 河口平野와 內陸地方, 나아가서는 外國의 沖積層粘土의 沈下現象과 比較하여 그 特性을 알고자 한다. The essontial points of the Following Contents are Study Concerning manufacturing Sa-Sang district in industrial highway on Ui-san City and City planing brock of the Bumil district. Including the general Survey of Settlement rate and, the Values. Characterizing the alluvial Clay Soil, sample being taken above First, the Lab-test Concerning are quality and State of the Spot & Construction of Soil layer. Secondary, It is the purpose of the Counter-Measure against of One dimensional Consolidation ratio between Coeffieient of Valume Conpressibility and Consol idation Index between Coefficient of permeability on Clay Sub-ground to the expecting Settlement rate So that. the result of general testment Concerning alluvial deposit clay Soils. has an imprtant Value on Soil Mechanics, accordingly it Will no doubt be a help to the founders who are looking for the Counter-measure against the Settelement of Clay Sub-ground
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李碩遠 漢陽大學校 敎育大學院 1988 敎育論叢 Vol.5 No.-
This study was designed to explore relationships between aesthetic judgement in music and school adjustment according to student types (normal, deliquent), grades (1,2,3), school performances (high, low). The hypotheses of this are as follows. 1. Within music of pleasant level (vocal music, piano music), independent variables such as student types, grades, and school performances will affect aesthetic judgement in music. 2. Within music of middle level (vocal music, piano music), independent variables such as student types, grades and school performances will affect aesthetic judgement in music. 3. Within music of unplesant level (vocal music, piano music), independent variables such as student types, grades and school performances will affect aesthetic judgement in music. For testing of these hypotheses, a sample of 210 male students from a randomly selected middle school in Seoul was given musics of three level based upon measurement of music specialists. For verification of the data, one way analysis of variance technique was applied in these hypotheses. The findings are as follows: 1. Within vocal musics of un pleasant level, grades affecting aesthetic judgement in music were found to be significant at p.05 level. 2. Within piano musics of middle level, student types & grades affecting aesthetic judgement in music were found to be significant in the range of p.05 and p.01 level. 3. Within piano musics of middle level, student types & school performances affecting aesthetic judgement in music were f9und to be significant at p.05 level. Conclusively, it was evident that aesthetic judgement in music was affected grades within vocal music of unpleasant level, student types and grades within piano music of pleasant level, student types and school performances within piano music of middle level.
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