• Proceedings of the Korean Society for Information Management Conference
• /
• 2003.08a
• /
• pp.295-302
• /
• 2003

정보매체와 통신 기술의 발달로 인한 정보의 범람 속에서 필요한 정보를 신속, 정확하게 얻기 위한 수단으로서 서지통정을 학자들의 이론을 통해 그 의미를 다시 정립하고자 하였다. 특히 세라와 이건의 사회인식론을 토대로 연구하고, 미시적 서지통정과 거시적 서지통정을 특징을 비교하여 다매체 시대에 서지통정의 나아갈 방향을 제시해 보고자 하였다.

• Tribology and Lubricants
• /
• v.3 no.2
• /
• pp.64-67
• /
• 1987

미끄럼 운동에 의하여 미세한 시일링 간극에 열이 발생할 때 어떠한 빠르기로 발생된 열이 재질 내부로 전파되는가를 속도의 개념으로 이론적 해석을 하였다. 발생된 마찰열이 시일재질 내부로 전파되는 속도는 불안정한 온도의 파장에 의하여 커다란 영향을 받고 있다.

• The Journal of the Acoustical Society of Korea
• /
• v.12 no.2E
• /
• pp.38-46
• /
• 1993

이미 발간된 바 있는 이론적 결과를 바탕으로 비파괴 검사용 분할형 초음파 탐촉자를 개발하였다. 개발과정은 각 부품의 제작, 조립, 그리고 성능평가 등을 거쳤고, 실험결과는 이론치들과 잘 일치하였다. 본 연구에서 개발된 탐촉자는 실현장에서 요구하는 기준치를 충분히 만족시킬 정도로 우수한 성능을 보였다.

• Journal of the Korea Concrete Institute
• /
• v.15 no.4
• /
• pp.557-565
• /
• 2003

• Transactions of the Korean Society of Mechanical Engineers
• /
• v.8 no.4
• /
• pp.351-359
• /
• 1984

본 연구에서는 열전달계수의 이와같은 변수의 영향에 대하여 연구하였다. 그리고 이론적 연구가 수행되지 않는 기하학적 형태에 대한 열전달 계수의 Rayleigh수 와 간격비 및 Prandtl수에 관한 간단한 상관관계식을 제시하였다.

• The Journal of the Acoustical Society of Korea
• /
• v.2 no.1
• /
• pp.20-26
• /
• 1983

본 논문에서는 단일모드 광섬유의 intrinsic birefringence 와 파라데이회전에 대한 이론적 해석을 하였다. 분석과정에서 단일모드 광섬유는 선형지연기로 모델링하였으며 측정결과 intrinsic birefringence 는 약 1.4rad/m로 나타났다. 그리고 자계의 영향에 의한 빛의 편광상태 변화에 대한 이론적 해석을 하 였다.

• 발명특허
• /
• v.5 no.7 s.53
• /
• pp.20-22
• /
• 1980

중세과학자가 크롬비(A.C Crombie)에 따르면 중세는 과학과 기술, 그리고 과학의 방법에서 모두 진전을 보였다. 먼저 합리적 설명의 개념, 특히 수학의 이용의 회복은 어떻게 이론을 세우고 검증 또는 반증하는 가의 문제를 제기했다. 이 문제는 스콜라적인 귀납이론과 실험적 방법에 의해 해결되었다. 그 예는 13, 14세기의 광학과 자기학에서 볼 수 있다.

• Journal of Sasang Constitutional Medicine
• /
• v.12 no.1
• /
• pp.63-83
• /
• 2000

The common concerns of leadership approaches were focused on finding leadership factors or necessity of leadership change to proper leadership styles adapt to contingent change through observing various leaders' behaviors for improving organizational effectiveness. Basically, they assumed that the human could be adapt to any conditions regardless of his inherent characters though it is perceived generally that human beings have different attitudes and behaviors toward the same fact, condition, situation, etc. In other words, inherent factors that cause individual differences have been neglected but concerned only about postnatal environments which influence human characters in previous leadership studies. A number of studies concerning inherent human characters have been worked in Asia for the past thousands years, which enable answering to the questions; why the human beings have different characters and personalities, and how to manage them in the given life conditions. In this research, four type human theory(called Sasang Theory) which has already been widely used in medical field in Korea will be introduced and applied to leadership theory to indicate inherent causal factors of the human character that are expected to influence leadership styles. In process, two different methods, one is for leadership theory and the other is for Sasang theory, have to be considered to match the different ideas. The theory is so predictable that the result implies possibilities of further future researches in the organizational fields by presupposing human behavior.

• Journal of the Korea Concrete Institute
• /
• v.19 no.3
• /
• pp.377-383
• /
• 2007

In recent years the field application of high performance concrete has been increased to improve the quality and reliability of concrete structures. The mix design of the high performance concrete includes the 2 set-off mixture theory of mortar and coarse aggregate and that of paste and aggregate. The 2 set-off mixture theory of mortar and coarse aggregate has a problem of having to determine its value through repeated experiments in applying the rheological characteristics of mortar. The 2 set-off mixture theory of paste and aggregate has never been applied to high performance concrete since it doesn't take into account the relationship between optimum fine aggregate ratio and unit volume of powder nor does it consider the critical aggregate volume ratio. As the mixture theory of these high performance concretes, unlike that of general concrete, focuses on flowability and charge-ability, it does not consider intensity features in mix design also, the unit quantity of the materials used is determined by trial and error method in the same way as general concrete. This study is designed to reduce the frequency of trial and error by accurately calculating the optimum fine aggregate ratio, which makes it possible to minimize the aperture of aggregate in use by introducing the maximum density theory to the mix design of high performance concrete. Also, it is intended to propose a simple and reasonable mix design for high performance concrete meeting the requirements for both intensity and flowability. The mix design proposed in this study may reduce trial and error and conveniently produce high performance concrete which has self-chargeability by using more than the minimum unit volume of powder and optimum fine aggregate with minimum porosity.

• Journal of Digital Convergence
• /
• v.19 no.4
• /
• pp.9-17
• /
• 2021

This study test a situational action theory for explaining online download and upload digital piracy and examines the moderating effect of self-control and punishment. Then it tests the moderating effect of self-control in high morality and low moral rule environments and tests the moderating effect of perceived punishment in low morality and high moral rule environments. Using data from 317 college students in Seoul, In case of download, results show that self-control does not control the effects of high morality and low moral rule on it. In addition, it is found that perceived punishment does not control the effects of low morality and high moral rule on it. In case of upload, results show that self-control does not control but increase the effects of high morality and low moral rule on it, while perceived punishment controls the effects of high morality and low moral rule on it.