• 대한전자공학회논문지
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• 제25권10호
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• pp.1141-1149
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• 1988

공간영역에서 모멘트방법을 써서 2차원 유전체의 복소 유전율 분포를 재구성 하기 위해 개발된 역산란 방법을 파수영역에서 사용할 수 있도록 개선하였다. 이 역산란 방법은 개념적으로 간단하고, 역산란 문제에 내재한 ill-posedness을 해결할 수 있는 여러 가지 적절한 방안을 강구할 수 있도록 한다.

• 한국생물물리학회:학술대회논문집
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• 한국생물물리학회 2003년도 정기총회 및 학술발표회
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• pp.33-33
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• 2003

Human DJ-1 and Escherichia coli Hsp31 belong to ThiJ/PfpI family whose members contain a conserved domain. DJ-1 is associated with autosomal recessive early-onset parkinsonism and Hsp31 is a molecular chaperone. Structural comparisons between DJ-1, Hsp31, and an archeal protease, a member of ThiJ/PfpI family, lead to the identification of the chaperons activity of DJ-1 and the proteolytic activity of Hsp31. Moreover, the comparisons provide insights into how the functional diversity is realized in proteins that share an evolutionarily conserved domain. On the basis of the chaperons activity, the possible role of DJ-1 in the pathogenesis of Parkinson's disease is discussed.

• Journal of Microbiology and Biotechnology
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• 제25권4호
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• pp.503-510
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• 2015

The iLOV protein belongs to a family of blue-light photoreceptor proteins containing a light-oxygen-voltage sensing domain with a noncovalently bound flavin mononucleotide (FMN) as its chromophore. Owing to advantages such as its small size, oxygen-independent nature, and pH stability, iLOV is an ideal candidate over other reporter fluorescent proteins such as GFP and DsRed. Here, for the first time, we describe the feasibility of applying LOV domain-based fluorescent iLOV as a metal sensor by measuring the fluorescence quenching of a protein with respect to the concentration of metal ions. In the present study, we demonstrated the inherent copper sensing property of the iLOV protein and identified the possible amino acids responsible for metal binding. The fluorescence quenching upon exposure to Cu²⁺ was highly sensitive and exhibited reversibility upon the addition of the metal chelator EDTA. The copper binding constant was found to be 4.72 ± 0.84 µM. In addition, Cu²⁺-bound iLOV showed high fluorescence quenching at near physiological pH. Further computational analysis yielded a better insight into understanding the possible amino acids responsible for Cu²⁺ binding with the iLOV protein.

• 한국수학교육학회지시리즈B:순수및응용수학
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• 제4권1호
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• pp.93-96
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• 1997

An atomic integral domain R is a half-factorial domain (HFD) if whenever $\chi_1$… $\chi_{m}=y_1$…$y_n$ with each $\chi_{i},y_j \in R$ irreducible, then m = n. In this paper, we show that if R[X] is an HFD, then $Cl_{t}(R)$ $\cong$ $Cl_{t}$(R[X]), and if $G_1$ and $G_2$ are torsion abelian groups, then there exists a Dedekind HFD R such that Cl(R) = $G_1\bigoplus\; G_2$.

• 대한수학회보
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• 제43권2호
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• pp.419-424
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• 2006

In this paper we extend the study of ascend and descend of factorization properties (for atomic domains, domains satisfying ACCP, bounded factorization domains, half-factorial domains, pre-Schreier and semirigid domains) to the finite factorization domains and idf-domains for domain extension $A\;{\subseteq}\;B$.

• 한국광학회:학술대회논문집
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• 한국광학회 2000년도 제11회 정기총회 및 00년 동계학술발표회 논문집
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• pp.14-15
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• 2000

We study the microwave characteristics of traveling-wave photodetector using the finite-difference time-domain method. We present two parameters for design, the width of PIN region and the thickness of i-layer, and analyze TWPD's property in frequency domain.

• 비파괴검사학회지
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• 제31권3호
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• pp.299-304
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• 2011

• 대한전자공학회논문지SD
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• 제39권4호
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• pp.63-71
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• 2002

본 논문에서는 FDTD(시간영역 유한차분법)를 사용하여 TWPD(진행파형 광검출기)의 마이크로파 특성을 분석하였다. FDTD를 적용하여 전류와 전압을 시간 영역에서 계산하였다. 또한, 이 시간 영역의 데이터를 이용하여 주파수 영역에서의 특성 임피던스와 전파 상수를 구하였다. 진성 영역의 두께가 두꺼울수록, 도파관의 폭이 좁을수록 마이크로파 손실이 적고 위상속도가 빠르게 됨을 확인하였다 100 GHz에서 도파관의 폭을 2.4㎛ 진성 영역의 두께를 1.2㎛ 정도로 할 경우 50Ω 임피던스 정합이 가능한 구조를 설계할 수 있었다.

• 복식
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• 제65권4호
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• pp.137-153
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• 2015

This paper aims at developing an analytic model for examining fashion designer's creativity. This research developed the analytic model of fashion designer's creativity adding the specificity of the fashion area to The Systems Model of Creativity by Csikszentmihalyi & Gardener. The analytic model of fashion designer's creativity is composed of 3 elements: the fashion designer, the fashion domain and the fashion field. The detail factors to be examined by each of the elements are as follows. In the dimension of an individual fashion designer, detail factors influencing the manifestation of creativity contain cognitive and non-cognitive abilities (i.e: personality traits, erotic capital) and socio-psychological factors (i.e: family condition, sexual identity, marital status, health). In the dimension of the fashion domain, creativity factors are composed of socio-cultural contexts and paradigms. In the dimension of the fashion field, detail factors refer to a mentor, supporter, competitor and a follower. Fashion designer's creativity manifests itself when detail factors of an individual fashion designer, fashion domain and field interact with each other dynamically.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제16권12호
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• pp.4024-4041
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• 2022

Robust reversible watermarking has attracted widespread attention in the field of information hiding in recent years. It should not only have robustness against attacks in transmission but also meet the reversibility of distortion-free transmission. According to our best knowledge, the most recent robust reversible watermarking methods adopt a single image as the carrier, which might lead to low efficiency in terms of carrier utilization. To address the issue, a novel dual-image robust reversible watermarking framework is proposed in this paper to effectively utilize the correlation between both carriers (namely dual images) and thus improve the efficiency of carrier utilization. In the dual-image robust reversible watermarking framework, a two-layer robust watermarking mechanism is designed to further improve the algorithm performances, i.e., embedding capacity and robustness. In addition, an optimization model is built to determine the parameters. Finally, the proposed framework is applied in different domains (namely domain-independent), i.e., Slantlet Transform and Singular Value Decomposition domain, and Zernike moments, respectively to demonstrate its effectiveness and generality. Experimental results demonstrate the superiority of the proposed dual-image robust reversible watermarking framework.