• KSII Transactions on Internet and Information Systems (TIIS)
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• 제13권9호
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• pp.4645-4664
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• 2019

It is significant to construct deterministic measurement matrices with easy hardware implementation, good sensing performance and good cryptographic property for practical compressed sensing (CS) applications. In this paper, a deterministic construction method of bipolar chaotic measurement matrices is presented based on binary sequence family (BSF) and Chebyshev chaotic sequence. The column vectors of these matrices are the sequences of BSF, where 1 is substituted with -1 and 0 is with 1. The proposed matrices, which exploit the pseudo-randomness of Chebyshev sequence, are sensitive to the initial state. The performance of proposed matrices is analyzed from the perspective of coherence. Theoretical analysis and simulation experiments show that the proposed matrices have limited influence on the recovery accuracy in different initial states and they outperform their Gaussian and Bernoulli counterparts in recovery accuracy. The proposed matrices can make the hardware implement easy by means of linear feedback shift register (LFSR) structures and numeric converter, which is conducive to practical CS.

• 사회복지연구
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• 제41권2호
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• pp.279-308
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• 2010

본 연구는 '자녀유무별 여성임금격차(Family gap)' 의 국가별 차이를 가져오는 제도적 요인을 탐색하기 위해 OECD 14개국을 대상으로 가족정책, 노동시장 및 사회구조와 Family gap의 관계를 분석하는 것을 목적으로 한다. 이 때 가족정책을 여성의 노동역할을 지원하는 '고용지원 가족정책' 과 양육역할을 지원하는 '양육지원 가족정책' 으로 분류하여 각각이 가지는 정책적 지향에 따라 Family gap에 미치는 영향을 구분하였으며 노동시장 및 사회구조를 분석하기 위한 변수로 노동시장 성분절 구조, 임금불평등 구조, 여성의 사회적 지위와 경제적 상황을 모형에 포함하였다. 분석을 위하여 먼저 헤크만 2단계추정법(Heckman's two stage estimation)을 통해 국가별 Family gap 크기를 측정한 후 퍼지셋분석(FSQCA)을 통해 어떠한 제도적 조합이 낮은 Family gap을 가져오는지 검증하였다. 분석결과 낮은 Family gap은 '고용지원 가족정책' 의 발달과 '낮은 임금불평등 구조' 의 결합인과관계(conjunctual causation)에 의해 발생하는 것으로 나타났다. 분석결과를 통해 '자녀가 있는 여성' 의 양육으로 인한 불리함을 줄이고 상대적인 임금수준을 높이기 위한 제도적 노력으로 여성의 고용지속 및 양육의 사회화를 지원하고 여성과 남성 모두의 일-가족 양립을 지향하는 가족정책의 확충과 함께 낮은 노동지위에 있는 여성의 임금 및 고용조건의 보호가 우선과제가 된다는 정책적 함의를 제시하였다.

• 호남수학학술지
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• 제44권4호
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• pp.636-645
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• 2022

We find a 1-parameter family of homogeneous structure tensors on contact hypersurfaces in Hermitian symmetric spaces. Among their associated Ambrose-Singer connections, we prove that the TanakaWebster connection is the unique pseudo-homothetically invariant connection.

• 가족자원경영과 정책
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• 제27권3호
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• pp.1-19
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• 2023

이 연구는 가정의 건강성 척도와 관련된 논의 그리고 맞벌이가정의 특성에 주목하여 맞벌이가정에 적용할 수 있는 건강성 척도를 개발하였다. 가정의 건강성은 생활과학 분야에서 오랫동안 연구되어 온 주제로서 이론적 근거와 다양한 내용이 축적되어 있다. 2004년 건강가정기본법 제정을 계기로 가정의 건강성은 현장에서 수행되는 사업에 반영되어, 그 실천성이 부각되고 있다. 또한 여성의 취업과 함께 맞벌이가정이 증가하고 있는데, 맞벌이가정의 특성상 일과 생활의 균형을 중심으로 다양한 요소에서의 건강성 측정 그리고 건강성 증진을 위한 대안 마련이 필요하다. 이에, 이 연구에서는 가정의 건강성, 맞벌이가정 관련 선행연구를 고찰하여 맞벌이가정의 건강성을 측정할 수 있는 문항 초안을 개발하였고, 전문가 자문을 거쳐 예비문항을 선정하였다. 이에 대한 예비조사를 거쳐 80개 문항으로 맞벌이가정의 건강성을 측정할 수 있는 척도 초안을 마련하였다. 척도의 타당성과 신뢰도를 확인하기 위하여 영유아기/학령전기 자녀를 둔 맞벌이 여성과 남성 800명을 대상으로 본조사를 실시하였고, 최종 747부를 통계분석에 사용하였다. 자료를 분석한 결과로 4개 영역 49문항을 도출하였으며, 신뢰도분석과 상관관계분석을 통해 도출된 문항의 타당도와 신뢰도를 검증한 후, 최종적으로 척도를 확정하였다. 확정된 척도는 기본토대(기본생활, 경제생활, 자원관리), 부모역할(나와 배우자의 부모역할), 사회적 관심과 참여(시민의식과 자원봉사, 여가공유, 지역사회 네트워크) 그리고 일생활균형(일가정 조화, 가족역할공유 및 평등한 역할분담)이다. 이 연구에서 개발한 척도는 건강가정지원센터/가족센터 등 현장에서 맞벌이가정 대상 사업을 실시할 때 초기단계에서 활용할 수 있으며, 그 결과를 기초로 컨설팅, 교육, 상담, 다른 프로그램 연계 등이 이루어져, 현장의 사업 활성화에 기여할 것으로 기대한다. 또한 향후 여러 다양한 형태의 가정을 위한 맞춤형의 건강성 척도 개발의 기초자료로 활용할 수 있을 것이다. 이 연구에서 개발한 척도가 잘 활용되기 위해서는 이 척도를 활용할 수 있도록 전문가/담당자 양성을 위한 시스템 구축이 필요하고, 나아가 일상생활의 역동적 변화를 반영, 척도를 지속적으로 업데이트할 수 있도록 자료의 보완이 필요하다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2017년도 춘계 학술논문 발표대회
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• pp.142-143
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• 2017

An analysis of the current water leak status of understand structure (underground parking lots, staircases, plumbing systems, water reservoirs, etc.) of multi-family housing in South Korea shows that water leaks are found from cracks in all areas of the underground structure caused by the degradation environment (water pressure by underground water, humidity, temperature, earth pressure, soil behaviour and vibration, etc.), which result in various problems, including mold, malodour, debonding of finishing materials, exfoliation, breakout, water leaks in electrical boxes, efflorescence, sedimentation of calcium hydroxide, decoloration, rusting, damages and pollution among others. Therefore, this study aims to analyse the current status of water leaks in underground structure and use the results as the basic data for developing a standard guideline for water leaks and maintenance by parts of the underground structure of multi-family housing.

• 한국생물정보학회:학술대회논문집
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• 한국생물정보시스템생물학회 2003년도 제2차 연례학술대회 발표논문집
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• pp.5-5
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• 2003

The purple acid phosphatases comprise a family of binuclear metal-containing enzymes. The metal centre contains one ferric ion and one divalent metal ion. Spectroscopic studies of the monomeric, ${\sim}$36 kDa mammalian purple acid phosphatases reveal the presence of an Fe(III)Fe(II) centre in which the metals are weakly antiferromagnetically coupled, whereas the dimeric, ${\sim}$110 000 kDa plant enzymes contain either Fe(III)Zn(II) or Fe(III)Mn(II). The three dimensional structures of the red kidney bean and pig enzymes show very similar arrangements of the metal ligands but some significant differences beyond the immediate vicinity of the metals. In addition to the catalytic domain, the plant enzyme contains a second domain of unknown function. A search of sequence databases was undertaken using a sequence pattern which includes the conserved metal-binding residues in the plant and animal enzymes. The search revealed the presence in plants of a 'mammalian-type' low molecular weight purple acid phosphatase, a high molecular weight form in some fungi, and a homologue in some bacteria. The catalytic mechanism of the enzyme has been investigated with a view to understanding the marked difference in specificity between the Fe-Mn sweet potato enzyme, which exhibits highly efficient catalysis towards both activated and unactivated phosphate esters, and other PAPs, which hydrolyse only activated esters. Comparison of the active site structures of the enzymes reveal some interesting differences between them which may account for the difference. The implications fur understanding the physiological functions of the enzymes will be discussed.

• 종양간호연구
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• 제9권2호
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• pp.114-121
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• 2009

Purpose: This study was to explore the hope structures of the newly diagnosed cancer patients by examining the relationships between hope and the three concepts of 'Personal Spirit', 'Risk' and 'Authentic Caring' which composed the multidimensions of the Nekolaichuk and Bruera's hope model. Methods: Data was collected via survey from 32 newly diagnosed cancer patients. The perceived meaning of life (PML) for 'personal spirit', perceived confidence in cure (PCC) for 'risk', and perceived family support (PFS) and perceived support from medical team (PSM) for 'authentic caring' were adapted from the definitions of the concepts in the model. Hope, PML, and PCC were measured with VAS. PFS and PSM were measured with Korean version of 'Cobb's family support scale', which was modified by Kang. Pearson correlation coefficients were used to identify the relationships among the concepts. Results: The significant relationships were revealed between hope and PCC (p<.001), hope and PML (p<.001), PML and PCC (p<.001), PFS and PML (p=.030), and PSM and PML (p=.047). Conclusion: The newly diagnosed cancer patients experience hope in different ways. The cancer patients' hope immediate after diagnosis, however, is most likely to be experienced as seeking balance between uncertainty about cancer treatment and the meaning of life.

• 한국전기전자재료학회논문지
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• 제18권7호
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• pp.589-593
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• 2005

The electronic states of ZnO doped with Al, Ga and In, which belong to III family elements in periodic table, were calculated using the density functional theory. In this study, the calculation was performed by two Programs; the discrete variational Xa (DV-Xa) method, which is a sort of molecular orbital full potential method; Vienna Ab-initio Simulation Package (VASP), which is a sort of pseudo potential method. The fundamental mixed orbital structure in each energy level near the Fermi level was investigated with simple model using DV-Xa. The optimized crystal structures calculated by VASP were compared to the measured structures. The density of state and the energy levels of dopant elements were shown and discussed in association with properties.

• Wind and Structures
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• 제3권1호
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• pp.23-40
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• 2000

In the early morning hours of February 23rd, 1998, seven large tornadoes ravaged central Florida. A total of 42 people were killed and millions of dollars of damage was done. A strip mall and other commercial structures sustained considerable damage and several residential areas were completely destroyed. Based on field observations, the paper examines the causes and sequence of structural failure for the masonry single family homes. Wind speeds are estimated based on the observed damage, and compared to the meteorological data. Finally, recommendations are given that could help to eliminate or reduce similar failures in the future. It was found that with simple, cost effective measures, most if not all of the damage could have been prevented.

• 대한가정학회지
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• 제41권1호
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• pp.39-58
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• 2003

This study investigated the effects of the householder's age as a proxy for the family life cycle stage variable and the householder's occupation on the household financial structures. Household financial structures are analyzed by the components of two financial statements(the income and expense statement and the balance sheet statement) and selected financial ratios. The data came from the 1998 Korean Household Panel Study. It was found that the age profiles of household finances such as household income, expenditure, savings and consumption rate, financial assets, real assets and home ownership, debt and net worth usually vary according the householder's occupation. The ratios of debt repayment and the liquidity ratios also vary in part as age changes for each occupational group.