• 대한수학회논문집
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• 제24권2호
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• pp.227-237
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• 2009

In this paper, we introduce the Denjoy-Pettis integral of set-valued mappings and investigate some properties of the set-valued Denjoy-Pettis integral. Finally we obtain the Dominated Convergence Theorem and Monotone Convergence Theorem for set-valued Denjoy-Pettis integrable mappings.

• Kyungpook Mathematical Journal
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• 제52권4호
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• pp.473-482
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• 2012

In this article we introduce the concepts of lacunary I-convergent sequences. We investigate its different properties like solid, symmetric, convergence free etc.

• Journal of applied mathematics & informatics
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• 제22권1_2호
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• pp.461-466
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• 2006

In this paper, an algorithm with a new Armijo-type line search is proposed that ensure global convergence of a correlative Polak-Ribiere conjugate method for the unconstrained minimization of non-convex differentiable function.

• Kyungpook Mathematical Journal
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• 제54권3호
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• pp.413-423
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• 2014

In this article we study different properties of the statistically convergent and statistically null sequence classes of fuzzy real numbers with fuzzy metric, like completeness, solidness, sequence algebra, symmetricity and convergence free.

• 융합신호처리학회 학술대회논문집
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• 한국신호처리시스템학회 2000년도 하계종합학술대회논문집
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• pp.121-124
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• 2000

적응 학습 알고리즘으로 가중치를 변화시키는 단층 신경망의 출력부에 Ramp 임계 함수를 적용하여 입력이 zero-mean Gaussian random vector인 경우 가중치의 stationary point를 구하고, 적응 학습 알고리즘을 유도한다.

• Korean Journal of Mathematics
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• 제29권1호
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• pp.169-177
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• 2021

The aim of the present study is to introduce the concepts of deferred statistical convergence, deferred statistical Cauchy sequence and deferred Cesàro summability in paranormed spaces. We investigate some properties of these concepts and some inclusion relations with examples.

• 한국전기전자재료학회논문지
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• 제29권8호
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• pp.470-475
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• 2016

In this study, $Zn_xMn_{3-x}O_4$ (x=0.95~1.20) specimens were prepared by using a conventional mixed oxide method. All specimens were sintered in air at $1,200^{\circ}C$ for 12 h and cooled at a rate of $2^{\circ}C/min$ to $800^{\circ}C$, subsequently quenching to room temperature. We investigated the structural and electrical properties of $Zn_xMn_{3-x}O_4$ specimens with variation of ZnO amount for the application of NTC thermistors. As results of X-ray diffraction patterns, all specimens showed the formation of a complete solid solution with tetragonal spinel phase. And, the second phase was observed by the solubility limit of Zn ions in $x{\geq}1.10$ composition. The average grain size was increased from $2.72{\mu}m$ to $4.18{\mu}m$ with increasing the compositional ratio of Zn ion from x=0.95 to 1.20, respectively. $Zn_{1.10}Mn_{1.90}O_4$ specimen showed the minimum electrical resistance of $57.5k{\Omega}$ at room temperature and activation energy of 0.392 eV.

• 융합정보논문지
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• 제8권4호
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• pp.87-97
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• 2018

본 연구는 PPL을 활용한 화장품 융합 광고의 광고속성이 브랜드태도 및 구매의도에 어떤 영향을 미치는지 알아봄으로써 화장품 업계의 PPL마케팅에 활용할 수 있는 기초 자료를 제공하는데 그 목적이 있다. 연구방법은 여대생을 대상으로 설문지를 배부하여 불성실한 6부를 제외한 494부를 SPSS v. 21.0 통계 프로그램을 이용하여 분석하였다. 연구결과 광고속성의 하위요인별 정보성, 오락성은 브랜드태도에 통계적으로 유의미한 정(+)의 영향을 미치는 것으로 나타났고, 불편성은 브랜드태도에 통계적으로 유의미한 부(-)의 영향을 미치는 것으로 나타났다. 또한 광고속성의 하위요인별 정보성, 오락성은 구매 의도에 통계적으로 유의미한 정(+)의 영향을 미치는 것으로 나타났다. 따라서 드라마나 영화의 내용과 흐름을 깨뜨리는 PPL은 소비자에게 불편성을 불러일으켜 광고 효과와 구매의도를 저하시킴으로, 드라마나 영화에서 제품 정보를 자연스럽게 제시하고 즐거움을 주는 PPL 광고가 이루어져야 할 것이다.

• 대한전기학회논문지:시스템및제어부문D
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• 제54권1호
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• pp.40-47
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• 2005

This paper concerns on Filtered-x least mean square (FXLMS) algorithm for adaptive estimation of feedforward control parameters. The conditions for convergence in ensemble mean of the FXLMS algorithm are derived and the directional convergence properties are discussed from a new geometric vector analysis. The convergence and its directionality are verified along with some computer simulations.

• Korean Journal of Mathematics
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• 제22권4호
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• pp.671-681
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• 2014

In this paper, we consider general Beta operators, which is a general sequence of integral type operators including Beta function. We study the King type Beta operators which preserves the third test function $x^2$. We obtain some approximation properties, which include rate of convergence and statistical convergence. Finally, we show how to reach best estimation by these operators.