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김상수 대구보건대학 1996 대구보건대학 論文集 Vol.16 No.-
The purpose of this study is to investigate the relationship between the development of laterality and bilateral motor abilities measured with respect to various rhythm movements in upper extremity of mentally retared children. The development of laterality was measured by a survey of dominace-hand. The bilateral motor abilities were assessed by means of a tentative rhythm beat test of hands. One hundred sixty eighty subjects with special education needs shose age ranged from 7 to 18 years old were used for an experimental group. Fity nine normal children whose age ranged from 3 to 6 years old were also chosen as a control group. The major findings were as follows : (1) The development of lateral dominace-hand in mentally retared children differed from that of normal subjects with an increase in chronological age ; the mean level of the normal children. Though normal children establish a dominance-hand by ths age of years old, meatally retarded children are likely to show 57 percent of normal development at the age of 7 through 9 years old and 65 percent of normal development at the age of 16 through 18 years old. (2) A greater delay in mentally retarded children was found through a rhythm test which was development to assess bilateral motor abilities in upper extremity. A closer relationship betwin chronological age and the development of bilateral motor abilities in mentally retared children was found. (3) In view of these findings, it was indicated that bilateral motor abilities of the retarded and non-retarded children were significantly correlated to the acqusition of dominance-hand.
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김상수 사단법인 미래융합기술연구학회 2021 아시아태평양융합연구교류논문지 Vol.7 No.11
The purpose of this study was to identify the problems and failures in writing the Korean language lesson plan. For this, 50 feedback reports on the Korean language lesson plan were collected and analyzed using the Nvivo12 program. The total number of coding was 228, and coding items were reclassified according to 5 class stages. The number of coding in the Warm-up stage was 42, there are 86 in the presentation and explanation stage, 48 in the practice stage, the use stage was 46, and the follow up stage was 6. The number of codings for the presentation and explanation stage was the highest with 86. The results of the study confirmed that the pre-service teachers had the most difficulty in composing the contents of the presentation and explanation stage in the process of preparing the lesson plan. In the stage of presentation and explanation, the teacher plays the biggest role in the course of the lesson, and depending on the teacher's presentation and explanation of the target item, it can have a significant impact on the progress of the next stage of the lesson. Therefore, if teacher training institutes and instructors are aware of these problems, it will be able to help prospective teachers to solve the difficulties encountered in class preparation and planning process. 이 연구는 한국어 수업 교안 작성의 문제점과 실태를 파악하는 데 목적을 두었다. 이를 위해 한국어 수업지도안에 대한 피드백 보고서 50편을 수집하였으며, NVIVO12 프로그램을 사용하여 분석하였다. 분석 결과, 전체 코딩 수는 228개로 나타났으며 코딩 항목은 5개의 수업 단계에 따라 재분류하였다. 도입 단계의 코딩 수는 42개, 제시와 설명 단계는 86개, 연습 단계는 48개, 활용 단계는 46, 마무리 단계는 6개로 확인되었다. 제시와 설명 단계에 대한 코딩 수가 86개로 가장 많이 나타났다. 이를 통하여 예비 교사들은 수업지도안을 작성하는 과정에서 제시와 설명 단계의 내용을 구성하는 데 가장 많은 어려움을 겪고 있는 것을 확인할 수 있었다. 제시와 설명의 단계는 수업을 진행하는 과정에서 교사의 역할이 가장 크며, 교사의 목표 항목 제시와 설명에 따라 다음 단계의 수업 진행에 상당한 영향을 미칠 수 있다. 따라서 교사 양성 기관과 교수자가 이러한 문제점을 인식한다면 예비 교사들이 수업 준비와 계획 과정에서 겪는 어려움을 해결하는 데 도움을 줄 수 있을 것이다.
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김상수,구재관,이영호,김병걸,Kim, Shang-Shu,Ku, Jae-Kwan,Lee, Young-Ho,Kim, Byung-Geol 한국전기전자재료학회 2013 전기전자재료학회논문지 Vol.26 No.6
The new recycling technology for aged aluminum wires in overhead conductor have been carried out. We are attempting to develop remanufacturing method for them for more effective way of recycling in stead of its conventional remelting process. The drawing process of aged aluminum wires play a role in remanufacture process. Drawing process was performed under lubricant. The speed of drawing was between 500 m/min and 1,000 m/min. These machines have 11 or 12 dies house for breakdown of the feedstock. Material of the die is tungsten carbide and they have generally 25% reduction ratio. The paper investigates the mechanical properties during drawing process of aged aluminum wire. The results of tensile tests and microscopic analysis were discussed to underscore the hardening features of drawing aluminum wire. Various graphs are presented accompanied by discussion about their relevance on the process.
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김상수,배효광,한도흥 한국화학공학회 1984 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.22 No.3
임계상태를 벗어난 고압의 기체속에 난휘발성 물질의 용해도는 기체-고체, 또는 기체-액체의 상평형계산에서 추산할 수 있다. 이때 임계점을 벗어난 초임계기체와 난휘발성물질의 혼합물의 상태를 잘 표현할 수 있는 상태방정식이 필요하다. 본 연구에서는 비교적 식이 간단하면서 정확도가 우수한 Peng-Robinson의 상태방정식과 Soave에 의하여 수정된 Redlich-Kwong의 상태방정식을 이용하여 난휘발성물질인 안식향산, 나프타렌, 페놀등의 고압기체(탄산가스, 에틸렌등)중 용해도를 계산하는 방법을 제안하였고 기존의 실험데이터와 잘 일치하는지를 검토하였으며, 상태방정식 중의 혼합물에 대한 상호작용계수의 최적치를 구하였고 또한 Enhancement Factor(E)의 온도 및 압력의 의존성을 조사하였다. Enhancement Factor는 압력이 낮을수록 온도에 강한 의존성을 나타내었으며 경험적으로 절대온도의 역수에 관계됨을 알 수 있었다. The solubility of less volatile substances in supercritical fluids can be predicted by thermodynamic relations of solid-gas and liquid-gas equilibrium. For the prediction, it is necessary to utilize the equation of state which can represent accurately the supercritical state of mixture composed of gas and less volatile matter. In present work, the solubility is calculated by using the equations given by Peng-Robinson and Soave that are relatively simple and accurate. It is shown that the observed data to be available in literature may be well correlated by using thermodynamic relationships and the equations of states mentioned above. We present also the values of interaction parameter included in the equations. The effect of enhancement factor (E) on temperature and pressure is discussed. It is empirically known that In E may be correlated to reciprocal of absolute temperature.
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