• 산업경영시스템학회지
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• 제17권29호
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• pp.1-12
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• 1994

The main purpose of this study was to investigat and analyse the causes of occurance of industrial accidents in Korea. In the study all statistical data regarding dangerens materials or parts, injured positions, primary and secondly causes of accidents, and people's interest of safety, etc., were obtained from 1, 027 various industry which have move more than one hundred employees. Especially, in the study, I tried to grasp essential causes and tendencies of occurances of industrial accidents relased to the various situstions, and to set up preventive method and policies scietifically.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1997년도 추계학술대회 논문집 학회본부
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• pp.238-241
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• 1997

The recent trend toward increased use of the once-through supercritical boiler worldwide is mainly due to its rapid response. The transient behavior of the steam generator are essential in the study of the system performance of power plants as well as for the design of their appropriate control systems. In this paper, a mathmatical model of the once-through supercritical pressure boiler is obtained by simulating a set of nonlinear differential and algebraic equations.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1994년도 하계학술대회 논문집 A
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• pp.262-264
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• 1994

In is paper, a novel dead time compensation method is presented which produces inverter output voltages equal to reference voltages. An experimental result is also presented to demonstrate the validity of the proposed method. The reference voltage can be used as a feedback value, which is essential for sensorless vector control and flux estimation. The method can be carried out automatically by an inverter controller for initial set-up without any extra hardware.

• 전자공학회논문지S
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• 제34S권8호
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• pp.45-55
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• 1997

To design a ATM Switch which ahs advantages in high sped packet switching, it is essential to set multiple paths between input ports and output ports and to design a new packet transfer technique on that paths for decreasing Packet Loss by conflicts in internal Switch Plane. We propose new packet transfer method, Alternate Path Transfer Mechanism by Dynamic Bypass Transfer Method which can solve conflict problem in Banyan network easily. Proposed ATM Switch consists of Banyan networks, Input/Ouput Port, Bypass Link, and Bypass Link Controller. Packets caused conflicts in SEs have another chances of packet transfer over alternate switching planes by using this mechanism.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2002년도 하계종합학술대회 논문집(1)
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• pp.279-282
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• 2002

Here we introduce so called Reference code-weighted sum of all PN codes used in the system-. We do inner product operation between received PN code and Reference code rather than locally generated PN code in the receiver. Acquisition process can be accomplished by only one inner product during full period of PN code. It's essential innovation against present method which can be viewed successive hypothesis test by inner product for entire candidate PH codes set. Well -defined decision region makes it possible. We suggest the. criterion fur designing the decision region and find a condition for weight (coefficient) of Reference code.

• 충청수학회지
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• 제3권1호
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• pp.33-40
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• 1990

We prove that if a $weak^*$-measurable function f defined on a finite measure space into a dual Banach space is separable-like, then for every measurable set E, the $weak^*$ core of f over E is the $weak^*$ convex closed hull of the $weak^*$ essential range of f over E.

• 한국통신학회논문지
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• 제26권11A호
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• pp.1963-1970
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• 2001

It is essential design process to analyze processing method and set out top level HW configuration using main parameters before implementation of the SAR processor. This paper identifies the impact of the I/O and algorithm structure upon the parallel processing to be assessed and suggests the practical mapping method fur parallel processing to the SAR data. Also, simulation is performed to the E-SAR processor to examine the usefulness of the method, and the results are analyzed and discussed.

• Kyungpook Mathematical Journal
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• 제49권2호
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• pp.321-348
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• 2009

In this paper, we give two lower bounds on the diameter of the boundary slope set of a Montesinos knot. One is described in terms of the minimal crossing numbers of the knots, and the other is related to the Euler characteristics of essential surfaces with the maximal/minimal boundary slopes.

• 대한약학회:학술대회논문집
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• 대한약학회 2002년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2
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• pp.402.2-402.2
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• 2002

An algorithm for finding the best regression models has been developed using NIR spectral data. In cases of regression analysis for quantitation with NIR spectral data, it is very critical to find essential features from the spectral data. This task was accessed in two ways. The first one was to use all-possible combinations of varibles (wavelengths). Correlation coefficients at each spectral points were calculated to get initial set of variables and all of the possible combinations of variable sets were tested with SEC. SEP and/or $R^2$. (omitted)

• 논리연구
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• 제11권2호
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• pp.1-56
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• 2008

본 논문은 제르멜로가 집합론을 공리화함에 있어서 힐버트의 공리적 방법을 차용하였다는 널리 무비판적으로 받아들여져 온 가정 자체를 검토하고자 한다. 그들이 공유했다고 가정되는 공리적 방법의 실체가 무엇이고 그것은 과연 어느 시기에 정립된 것인지를 묻는 데서 출발해서 공리적 방법에 관한 제르멜로와 힐버트의 사상이 어떻게 상호작용하며 발전해 나갔는지를 철학적 반성을 통해 규명하려는 것이다. 그 결과 후기 사상에서뿐만 아니라 심지어 전기 사상에 있어서도 제르멜로가 집합론 자체와 공리적 방법에 관하여 힐버트와 상당히 다른 견해를 지녔을 가능성을 확인할 것이다. 이러한 결과는 집합론의 역사와 공리적 방법의 역사, 그리고 나아가서 수학철학 전반에 걸쳐 상당한 함축을 지닐 수밖에 없다고 본다.