• 제목/요약/키워드: degree

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공냉형 흡수식 냉방 시스템에서 LiBr 수용액의 과열도가 증기 흡수에 미치는 영향 (Effect of degree of superheat of LiBr aqueous solution on the vapor absorption process for an air-cooled absorption cooling system)

  • 김선창;오명도;이재헌
    • 설비공학논문집
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    • 제9권2호
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    • pp.122-133
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    • 1997
  • Numerical analysis using finite volume method has been carried out to examine the effect of degree of superheat of LiBr aqueous solution on heat and mass transfer occurred in absorption process. According to the result of this study, it was found that refrigerant vaper was generated at the entrance region of absorber when LiBr aqueous soltion was superheated. As the degree of superheat increases, heat transfer rate increases and vapor absorption rate decreases. The increase in averaged Nusselt and Sherwood numbers could be found as film Reynolds number increases. The larger the degree of superheat, the greater the averaged Nusselt and Sherwood numbers.

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의료서비스에 대한 서비스 부문별 중요도와 만족도에 관한연구 (A Study on the Degree of Importance of Medical Service Sector and Consumer Satisfaction of Service Quality)

  • 이상협
    • 가정과삶의질연구
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    • 제15권1호
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    • pp.129-146
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    • 1997
  • The purpose of this paper was to discover the importance and degree of satisfaction toward medical service perceived by clients and analize some characteristics and any siginificant difference by deomographic and social variables. In addition the subjects were divided into groups(i. e. satisfied and dissatisfied groups) and tested significant difference between two groups, The results can be summerized as follows: 1,. While the importance of over attributes of medical services percevied by customs was higher the degree of satisfaction was relatively low. 2. According to our analysis the degree of satisfaction toward hospital facilities and staff appeared to have relatively have relatively heavy weights compared to total satisfaction scores. 3. As far customers' quality evaluation about medical service is concerned the importance and degree of satisfaction could not be discriminated by demographic variables except education and income level. 4. The discrepancy of satisfaction s ore between satisfied and dissatisfied group was the highest in hospital facilities compared to other three sectors.

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파랑의 굴절 정도를 예측하는 해석기법 (Analytical Method for Determining the Degree of Wave Refraction)

  • 정태화;이창훈
    • 한국해안·해양공학회논문집
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    • 제30권5호
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    • pp.217-222
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    • 2018
  • 해석적인 방법을 이용하여 파랑의 굴절 정도를 예측하는 기법을 개발하였다. 굴절을 계산하기 위해 기존에 사용하였던 파향선법의 경우에는 파의 진행을 해석할 순 있지만 다양한 조건에서 발생하는 굴절의 차이는 설명할 수 없다. 본 연구에서는 굴절이 파봉선 방향으로 위상속도의 차이에 의해 발생하는 점에 착안하여 다양한 조건에서 발생하는 굴절의 차이를 설명할 수 있는 굴절수를 제안하였다.

황토 종류에 따른 염색성 연구 (A Study on the Dyeing according to Kinds of Loess)

  • 강영의;박순옥
    • 한국염색가공학회지
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    • 제15권6호
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    • pp.39-46
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    • 2003
  • The experiments about dyeing concentration, temperature and time were done using yellow, red and purple loess as natural inorganic dyes in order to verify a degree of dyeing, characteristics of color and fastness. The results were as following; 1. As a result of analyzing components of loess, purple loess was much than other loess in quartz component and coarse particles contained. This affected to the degree of dyeing. 2. The stronger dyeing concentration was, the more the degree of dyeing was improved, and yellow loess containing fine particles was the best in the degree of dyeing. 3. When it was dyed with raising up to $100^\circ{C}$ for 10 minutes after stirring for 20 minutes at $60^\circ{C}$, was better than on starting at $40^\circ{C}$ or $80^\circ{C}$ in the degree of dyeing. Also yellow loess was the best in these experiments. 4. Washing fastness of loess was low such as other natural dyes, but dyeing wasn't transferred to other textiles. On the other hand, light fastness of it was very excellent and rubbing fastness was relatively good as 3~3.5.

6자유도 조작장치의 설계와 기구학적 특성에 관한 연구 (A study on the design and characteristics of kinematics of 6 degree-of-freedom manipulators)

  • 김정태;김문생
    • 대한기계학회논문집A
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    • 제22권2호
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    • pp.467-475
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    • 1998
  • The Six Degree-of-Freedom manipulators are generally operated by linear actuators which are hydraulic cylinder, pneumatic cylinder, ball-screw. But these actuators are not adequate to have a wide work-space, and furthermore some of them have a self-locking property. Therfore, we have designed a new manipulator which fully overcomes these demerits. The new manipulating system consists of 6 DC-motors to generate operation forces and 6 position transducers to feedback displacement signals. This paper presents an overview of the design and characteristics of 6 Degree-of-Freedom force feedback manipulators for vitual reality implementation. we can operate Six Degree-of-Freedom manipulator with six motors and six potentiometers.

국내 중소기업의 기술인문융합 현황분석 (Issues and Efforts for Technology-Humanities Convergence : Empirical Analysis of Korean SMEs)

  • 김지은;장영수;이성주
    • 대한산업공학회지
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    • 제40권5호
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    • pp.451-461
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    • 2014
  • This paper analyzed the degree of perception and performance of technology-humanities convergence in Korean SMEs. First, the meaning and activities of technology-humanities convergence were defined. Second, a survey data was collected from 277 Korean SMEs and analyzed from two perspectives-degree of performance and degree of perceived importance. Finally, based on the results, this paper signposted the important points to activate the technology-humanities convergence in SMEs.

사용자 중심적인 병동부 디자인을 위한 사용자 만족도 조사 - 부산시 A 종합병원에 대한 사례연구를 중심으로 - (User Satisfaction with Their Ward Environments for User-Oriented Design)

  • 이양경;오찬옥
    • 한국실내디자인학회논문집
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    • 제38호
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    • pp.173-181
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    • 2003
  • This study was intended to investigate the satisfaction degree of users with ward design, and on the basis of this, to suggest the design guidelines of user-oriented general hospital ward. A general hospital in Busan was case-studied. Subjects were 49 patients, 50 families, 50 nurses in this hospital. The results were as follows; The satisfaction degree of users with the psychological factors of ward design was relatively low, while the user satisfaction degree with the functional aspects was relatively high. As for the difference among users, the satisfaction degree of patients and their families with the functional aspects of ward design was higher than that of nurses, and there were no many cases to show the difference among users' satisfaction degree with the psychological factors.