• Nuclear Engineering and Technology
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• 제51권7호
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• pp.1715-1720
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• 2019

Jozef Stefan Institute (JSI), TRIGA Mark II reactor employs the homogeneous mixture of uranium and zirconium hydride fuel type. Since its upgrade, a series of fresh fuel steady state experimental benchmarks have been conducted. The benchmark results have provided data for testing computational neutronics codes which are important for reactor design and safety analysis. In this work, we investigated the JSI TRIGA Mark II reactor neutronics characteristics: the effective multiplication factor and two safety parameters, namely the control rod worth and the fuel temperature reactivity coefficient using SuperMC. The modeling and real-time cross section generation methods of SuperMC were evaluated in the investigation. The calculation analysis indicated the following: the effective multiplication factor was influenced by the different cross section data libraries; the control rod worth evaluation was better with Monte Carlo codes; the experimental fuel temperature reactivity coefficient was smaller than calculated results due to change in water temperature. All the results were in good agreement with the experimental values. Hence, SuperMC could be used for the designing and benchmarking of other TRIGA Mark II reactors.

• Journal of Oral Medicine and Pain
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• 제4권1호
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• pp.13-21
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• 1979

Cases involving bite marks have increased considerably since first reports of bite wound for the individual identification in Korea 1969. This is probably due to fact that investigating officers are now more aware of the value of bite mark evidence and are always alter to the possibility of sign of bite mark. Authors recently had an experience in the identification of a criminal by tracing marks made on silicon rubber impression from corp genital organ.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2012년도 춘계학술대회 논문집
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• pp.811-812
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• 2012

• 전기의세계
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• 제14권6호
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• pp.8-13
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• 1965

The TRIGA Mark-II Reactor is very simple to analyze the dynamic characteristics, so that the heat transfer function of the reactor fuel rod is able to be considered as a over-all feedback transfer function. The heat transfer dynamics of the fuel rod is derived under some assumptions. And the over-all reactor transfer function is analytically calcu- lated and it is compared with the measured value. The reactor dynamics and the stability are analyzed by means of the Root-Locus and the Nyquist.

• 한국통계학회:학술대회논문집
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• 한국통계학회 2003년도 추계 학술발표회 논문집
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• pp.117-122
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• 2003

개방형 모집단에 대한 Mark-Recapture방법은 일반적으로 Jolly-Seber방법이 사용된다. 이 방법은 각 표본에서 모든 동물들에 대한 포획될 확률은 동일하다는 가정을 갖는다. 개방형 모집단에 대한 Mark-Recapture방법을 소개하고 폐쇄형 모집단에서 갖는 문제를 해결하기 위한 개방형 모집단의 로버스트 설계를 이용하려다. Pollock과 Kendall의 Jolly-Seber 모수로부터 유도된 모집단의 성장율 추정에 대하여 SAS와 POPAN의 결과를 비교하였다.

• 충청수학회지
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• 제22권2호
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• pp.155-159
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• 2009

Using the Binet's formula, we show that the quotient related ratio $l_{1(x)}\;\neq\;0$ for the eventually periodic continued fraction x. Using this ratio, we also show that the derivative of the Minkowski question mark function at the simple periodic continued fraction is infinite or 0. In particular, $l_1({[\bar{1}]})$ = 2 log $\gamma$ where $\gamma$ is the golden mean $(1+\sqrt{5})/2$ and the derivative of the Minkowski question mark function at the simple periodic continued fraction $[\bar{1}]$ is infinite.

• Journal of applied mathematics & informatics
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• 제27권5_6호
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• pp.1405-1410
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• 2009

A tripartite $\gamma$-digraph is an orientation of a tripartite multigraph that is without loops and contains at most $\gamma$ edges between any pair of vertices from distinct parts. In this paper, we obtain necessary and sufficient conditions for sequences of non-negative integers in non-decreasing order to be the sequences of numbers, called marks (or $\gamma$-scores), attached to the vertices of a tripartite $\gamma$-digraph.

• 한국산업안전학회:학술대회논문집
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• 한국안전학회 1998년도 추계 학술논문발표회 논문집
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• pp.173-177
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• 1998

In this paper, we reported an outbreak of fire hazard of ballast for fluorescent lamp. The surface structure and composition of ballast coil analyzed by using metallurgical microscope, scanning electron microscope(SEM) and energy dispersive x-ray spectroscopy(EDX). The surface of molten mark appeared columnar structure and void. EDX analysis indicated that the molten mark spectra were composed not only of the corresponding original spectra but also of several new lines.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2001년도 춘계학술발표논문집 (상)
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• pp.213-216
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• 2001

본 논문은 심리음향모델과 주파수변환을 이용하여 MP3 와 AAC 의 압축에서 강인하게 살아남을 수 있는 디지털 오디오 워터마킹 알고리즘에 관한 것이다. 워터마크를 의사난수열이나 이미지 등 외부 정보를 이용하지 않고 원본음악으로부터 생성시킨다는 것이 본 논문의 가장 큰 특징으로 원본 오디오로부터 생성된 워터마크는 음악과 융합되어 워터마크의 삽입여부를 일반인의 청각으로는 인식할 수 없다.

• 한국방송∙미디어공학회:학술대회논문집
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• 한국방송공학회 2000년도 정기총회 및 학술대회
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• pp.107-111
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• 2000

인터넷의 발달과 더불어 멀티미디어에 대한 유통과 불법복제, 그리고 이에 따른 저작권보호운동이 활발히 진행되고 있다. 이 논문에서는 이러한 multimedia 저작권 보호를 지 원해주는 가장 일반적인 기법중에 하나인 watermarking 기법을 포괄적으로 포함하는 data hiding 기법의 일반적인 특징에 대해 논하고, 이 기법이 갖는 중요한 특성중에 하나인 embedding data의 종류와 양를 활용하여 multimedia processing에 적용하는 새로운 사례를 보여주며, 이를 토대로 스스로 생각할 수 있는 지능을 가진 intelligent smart video의 개념에 대해 토의한다.