다문화 가정 청년들의 청년기 가족관계 경험 및 그 영향에 대한 합의적 질적 연구

김재훈,김재훈,김민선,송가람,이수현,송지혜 한국국제문화교류학회 2022 문화교류와 다문화교육 Vol.11 No.4

This study was conducted to examine the experiences of family relationships that multicultural young adult experience in families and examines how multicultural young adult family relationship affect in transition. In order to explore the experiences of multicultural young adults, 12 young adults who were born in Korea or immigrated were recruited as research participants. A consensus qualitative research method was used to explore multicultural young adults’s family adaptation and communication experiences. The interview was conducted in a semi-structured format for an average of about 60 to 70 minutes. In order to secure the validity of the research results, two experts received opinions on the appropriateness of the broad fields and categories derived from the research. Finally, 5 domains and 18 categories were derived: ‘Various experiences with family members in the growth process of youth born in Korea.' ‘Formation of a new family and experiences within the mid-immigrant youth.', ‘Cultural adaptation and family relationship experience of foreign parents.’, ‘Effect of the family on identity formation and growth of youth with migration background in the transition period.’ ‘Acceptance of bi-culture due to positive experiences in parent and family.’Based on the results of this study, the experiences of youth with migratory backgrounds in their young adults families were described, and the implications of the role of family relationships in identity formation were described. It was suggested that a study on multicultural young adults is necessary. 본 연구는 다문화 가정 청년들이 청년기 가족 안에서 경험하는 가족관계 경험을 탐색하여 다문화 가정 청년들의 가족 관계가 성인 전환기에 있는 청년들에게 어떤 영향을 미치는지 확인하기 위한 목적으로 진행되었다. 다문화 가정 청년들의 경험을 탐색하기 위해 국내출생과 중도입국 다문화 가정 청년 12명을 연구 참가자로 모집하였다. 분석을 위해서 합의적 질적 연구(CQR) 방법을 사용하였으며, 반 구조화된 형식으로 평균적으로 약 60~70분의 인터뷰를 진행하였다. 연구결과 ‘국내출생 청년들의 성장과정에서 가족 구성원과 다양한 경험’, ‘중도입국 청년들의 새로운 가족형성과 그 안에서의경험’, ‘외국인 부모의 문화적응과 가족관계 경험’, ‘다문화 가정 청년들의 이중문화 수용에 가족이 미친 영향’, ‘다문화 가정 청년들의 정체성 형성과 성장에 가족이 미친 영향’의 5개 영역과 18개 범주가 도출되었다. 본 연구의 결과를 바탕으로 다문화 가정 청년들의 청년기 가족 안에서의 경험을 살펴보고 정체성 형성에 가족관계의 역할에 대한시사점을 논하였다.

돼지 질병 진단은 어떻게 하나?

김재훈,Kim, Jae-Hun 대한양돈협회 1997 養豚 Vol.19 No.9

SUS 321 전자비임 용접부의 피로균열진전거동

김재훈 한국산업안전학회 1997 한국안전학회지 Vol.12 No.2

Fatigue crack propagation behaviors and life prediction for SUS 321 plate and its electron beam weld metal were investigated using compact tension specimens. The larger the stress ratio is, the faster the crack propagates, but the variation of crack propagation rate decreases. The effect of stress ratio is greater in the slow crack propagation area than in the faster one. The crack propagation rate of electron beam weld metal is faster than that of base metal because of hardening, weld defect and residual stress in welding area. The crack propagation rate of transverse weld metal has a lower than that of base metal due to the effect of residual stress, but in the time of passing through welding area, has a higher rate. The crack propagation rate using ΔK_(eff) can be well plotted regardless of stress ratio. The fatigue life prediction method of considering crack closure more exactly predicts fatigue life than conventional one.

피로균열진전에 미치는 시편 두께의 영향

김재훈,김영균,윤인수 한국산업안전학회 1998 한국안전학회지 Vol.13 No.4

The effect of specimen thickness on fatigue crack growth behavior has been carried out by compact tension specimens of thickness of 3㎜, 10㎜ and 25㎜ for maraging steel and Al 7075-T6. The closure points were determined during the test by means of a clip-gage situated at the notch mouth. Specimen thickness have no apparent influence on the fatigue crack growth rate of maraging steel, but the crack growth rate of 25㎜ thickness specimen for A1 7075-T6 is faster than that of 3 and 10㎜ specimens. The difference of crack growth rates can be successfully explained by considering the different stress state of plane strain and plain stress due to the variation of specimen thickness. Also the crack opening ratio of 25㎜ specimen is greater than those of 3 and 10㎜ specimens. When a side groove is introduced in a 10㎜ specimen, the crack growth rate is approximately similar to that of 25㎜ specimen. The effective thickness expression of B_e=B_o-(B_o-B_N)²/B_o is the most appropriate to evaluate the crack growth rate of side-grooved specimen. Fatigue crack growth rates can be well described by ΔK_(eff) of the crack closure points in regardless of all thickness and side-grooved specimens.

원자로용 하단고정체에 대한 구조시험 평가

김재훈,임정식,김덕회,사정우,손동성 한국산업안전학회 1999 한국안전학회지 Vol.14 No.3

The atomic fuel rods between top and bottom end pieces of reactor need to be extended for high combustion rate of future-type fuel to increase the irradiation in the axial direction. For allowing axial extension of the fuel rods, the space between top and bottom end pieces should be expanded. Thus the thickness reduction of the flow plate is necessary. This study was carried out the mechanical strength test by using strain gages as a function of flow plate thickness, the existence of skirt and loading condition for the KOrean Fuel Assembly(KOFA). The experimental apparatus was designed for load conditions, uniformly distributed load and displacement. Test method using whiffle tree of uniformly distributed load has been comparatively conservative. The test results were compared with those of finite element analysis and the test method on bottom end piece was established.

변형률 측정을 이용한 추진기관용 Al 합금의 파괴인성 평가

김재훈,김덕회,임동규,박성욱,문순일 한국산업안전학회 2002 한국안전학회지 Vol.17 No.3

The fracture toughness is evaluated by using CT(compact tension) and 3PB(thress point bending) specimens of A1 alloys for propulsive engine. To evaluate the static fracture toughness, strain gage method is used. The static fracture toughness obtained from the strain measurement is compared with the results by ASTM standard and FEM analysis. For the reliable evaluation of fracture toughness, strain gages are attached at various positions.

타우린 영양 강화 로티퍼 공급이 방어(Seriola quinqueradiata) 부화 자 어의 성장 및 부레 팽창에 미치는 영향

김재훈,박진우,조정현 한국수산과학회 2022 한국수산과학회지 Vol.55 No.5

We investigated the effects of taurine-enriched rotifers on larval growth and swim bladder inflation of yellowtail Seriola quinqueradiata. Rotifers were enriched with a commercial taurine supplement at two levels (0 and 800 mg/L). The larvae (initial notochord length=3.98±0.24 mm) were fed the enriched rotifers in triplicate from two days posthatch for five days. The average taurine contents of the taurine non-enriched and enriched rotifers were 0.35±0.01 and 4.77±0.05 mg/g dry matter, respectively. The weight gain and specific growth rate of the fish fed enriched rotifers with the taurine supplement at 800 mg/L significantly improved compared with those of fish fed rotifers without taurine enrichment (P<0.05). The swim bladder inflation rate of larvae fed taurine enriched rotifers significantly (P<0.05). The results of the present study indicate that yellowtail larvae benefit from taurine concentrations compared with those typically reported to feed on non-taurine supplemented rotifers. Furthermore, taurine-enriched food for fish larval effectively improved the growth performance and swim bladder inflation of yellowtail larvae.

기계학습 기반 개체명 인식을 위한 사전 자질 생성

김재훈,김형철,최윤수,Kim, Jae-Hoon,Kim, Hyung-Chul,Choi, Yun-Soo 한국과학기술정보연구원 과학기술정보센터 2010 Journal of Information Science Theory and Practice Vol.41 No.2

Now named-entity recognition(NER) as a part of information extraction has been used in the fields of information retrieval as well as question-answering systems. Unlike words, named-entities(NEs) are generated and changed steadily in documents on the Web, newspapers, and so on. The NE generation causes an unknown word problem and makes many application systems with NER difficult. In order to alleviate this problem, this paper proposes a new feature generation method for machine learning-based NER. In general features in machine learning-based NER are related with words, but entities in named-entity dictionaries are related to phrases. So the entities are not able to be directly used as features of the NER systems. This paper proposes an encoding scheme as a feature generation method which converts phrase entities into features of word units. Futhermore, due to this scheme, entities with semantic information in WordNet can be converted into features of the NER systems. Through our experiments we have shown that the performance is increased by about 6% of F1 score and the errors is reduced by about 38%.

문서 확장을 이용한 표제어 검색시스템

김재훈,김형철,Kim, Jae-Hoon,Kim, Hyung-Chul 한국과학기술정보연구원 과학기술정보센터 2011 Journal of Information Science Theory and Practice Vol.42 No.4

표제어 검색시스템은 뜻풀이를 질의로 간주하는 정보검색 시스템이다. 이러한 시스템을 구축하기 위한 가장 간단한 방법으로 사전의 표제어 뜻풀이(사전 뜻풀이)를 문서로 간주하는 정보검색 시스템을 구축하는 것이다. 이 문서의 길이가 너무 짧아 사용자 질의(사용자 뜻풀이)에 대한 적절한 표제어를 검색하기 어렵다. 이 문제를 완화하기 위해서 본 논문에서는 정보검색에서 사용되는 질의 확장 개념을 문서 확장에 적용한다. 본 논문에서는 문서 확장 방법으로는 뜻풀이 확장과 유의어 확장을 사용한다. 뜻풀이 확장은 주어진 단어의 사전 뜻풀이에 속하는 단어의 뜻풀이를 문서에 포함시키는 방법이고, 유의어 확장은 무자질 군집화 알고리즘을 통해서 유의어를 찾고, 찾아진 유의어를 문서에 포함시키는 방법이다. 제안된 표제어 검색시스템은 사전 뜻풀이 그 자체를 입력으로 할 때, 16-포함률이 거의 100%에 달하였다. 또한 사용자 뜻풀이를 입력으로 할 때, 20-포함률이 66.9%였다. 사용자 뜻풀이가 단어의 의미를 충분히 전달할 수 없는 것으로 관찰되었으며 앞으로 정확하고 객관적인 평가를 위해서 평가 집합에 대한 연구가 추가적으로 필요한 실정이다.

환경정책, 재분배정책, 경제성장에 관한 정치경제학적 분석

김재훈 한국개발연구원 2011 KDI Journal of Economic Policy (KDI JEP) Vol.33 No.2

We analyse an overlapping generation model in which economic agents, especially their income distribution, influence environmental policy and redistributive policy through political decision making process. In an economic equilibrium which doesn't consider political process, the introduction of environmental policy is shown to increase economic growth rate. In contrast to an economic equilibrium, environmental policy can be adopted when economic inequality reduces to a certain threshold in a political economic equilibrium. The adoption of environmental policy, on the other hand, incurs the demand of strengthened redistributive policy, which in turn decreases economic growth in a short run. We discuss broad policy implications based on our political economic analyses. 본 논문은 경제적 불평등이 정치적 의사결정과정을 통하여 환경정책과 재분배정책에 어떻게 영향을 미치는지를 분석하고 있다. 정치과정을 배제한 경제적 균형에서는 환경정책(배출세)의 도입이 미도입 시와 비교하여 경제성장률의 상승을 가져올 수 있지만 그 효과에 불확실성이 존재함을 보이고 있다. 이와 달리 정치경제적 균형에서는 경제적 불평등도의 변화에 따라 환경정책과 재분배정책의 선택이 달라지는 것을 보이고, 그러한 정책 선택이 경제성장에 미치는 영향을 분석하고 있다. 보다 구체적으로 경제적 불평등도가 일정 수준으로 개선되어야 환경정책이 도입되고, 환경정책의 도입은 보다 강화된 재분배정책의 요구로 이어져 단기적으로 경제성장에 부정적인 영향을 줄 수 있음을 보이고 있다. 본 논문에서는 이러한 정치경제적 분석을 기초로 정책적 함의를 논의하고 있다.