The Relationship between Transnational Grandparenting and Depressive Symptoms among Multicultural Children and Adolescents in Korea

장서현 서울대학교 사회발전연구소 2024 Journal of Asian Sociology Vol.53 No.1

Despite numerous studies examining the relationship between grandparenting and the mental health of grandparents, the understanding of transnational grandparenting’s role in the mental well-being of children and adolescents, particularly in South Korea with its increasing number of immigrants, remains limited. Based on the 2018 National Survey of Multicultural Families data (n = 5,147), this study investigates the relationship between transnational grandparenting and the mental health of multicultural children and adolescents and whether it differs by their sociodemographic characteristics. Transnational grandparenting had a negative relationship with depressive symptoms among multicultural grandchildren in Korea, particularly evident within the subgroup of males attending middle and high schools. These findings emphasize the importance of implementing age- and gender-specific interventions to support the mental health of multicultural children and adolescents. Additionally, the study indicates potential avenues for future research, including qualitative investigations to explore the significance of transnational grandparenting and its diverse manifestations, such as “virtual” grandparenting.

생체모방과 산업디자인의 접목 사례 연구

장서역(Zhang, Rui Yu),김선철(Kim, Sun Chul) 한국디지털디자인협의회 2014 (사)한국디지털디자인협의회 conference Vol.2014 No.5

전라남도 칠산도 주변 참조기(Larimichthys polyactis) 어란 출현의 첫 보고

장서하,김진구,유정화 한국수산과학회 2020 한국수산과학회지 Vol.53 No.4

Chilsan-do Island, South Korea, has previously been identified as one of the biggest spawning sites of the small yellow croaker Larimichthys polyactis in the Yellow Sea. To determine whether Chilsan-do still serves as a spawning site for L. polyactis, three to five stations around Chilsan-do Island were surveyed for eggs from April to June (the main spawning season of L. polyactis) in 2019, using an RN80 net. For the first time, three L. polyactis eggs were identified at two stations, located just in front of Chilsan-do Island and between Chilsan-do and the coastline, only in May. The diameter of L. polyactis eggs (1.26-1.34 mm) was very similar to those of Collichthys niveatus (1.30-1.37 mm) and Setipinna tenuifilis (1.34-1.35 mm). During the survey period, the sea surface salinity remained constant (32.0-32.1 psu), but the sea surface temperature (SST) rapidly rose from 13.6-13.7°C in April to 22.1°C in May. Our findings suggest that L. polyactis still spawns near Chilsan-do Island today, but on a very small scale, and that changes in SST promote spawning of L. polyactis.

저궤도 우주환경에서 에폭시-실리카 나노 복합소재의 열화거동 분석

장서현(Seo-Hyun Jang),한유수(Yusu Han),황도순(Do Soon Hwang),정주원(Joo Won Jung),김영국(Yeong Kook Kim) 한국항공우주학회 2020 韓國航空宇宙學會誌 Vol.48 No.12

이 연구에서는 저궤도 우주 환경(LEO) 조건에서 나노실리카 에폭시 복합소재의 실리카 농도가 재료의 열화 거동에 미치는 영향에 대해 알아보았다. 실리카 입자를 에폭시 수지에 10%와 18% 두 가지 서로 다른 무게비로 나노복합소재를 제작하여 저궤도 우주 환경 모사장치에서 열화시켰다. 열화된 나노복합소재를 대상으로 열중량분석(Thermogravimetric Analysis, TGA)를 수행하였고 등변환법(Iso-conversional Method)에 기반한 Friedman 방법, Flynn-Wall-Ozawa(FWO) 방법, Kissinger 방법, 그리고 DAEM(Distributed Activation Energy Method)으로 활성화에너지를 계산하였다. 그 결과 나노입자가 섞이지 않은 샘플은 열화가 진행되면서 중가함을 보였다. 그러나 10%와 18%는 열화싸이클이 15회일 때까지 증가하였으나 그 이후에는 감소하였으며, 따라서 나노 입자가 열화 거동에 부정적인 영향이 있음을 보였다. 또한 활성화에너지 계산에 적용된 방법에 대해 토의하였다. In this study, the effects of Low Earth Orbit(LEO) environments on the degradation behavior of epoxy nano silica composite materials were investigated. The nanocomposite materials containing silica particles in different weight ratios of 10% and 18% were prepared and degraded in a LEO simulator to compare with the neat epoxy cases. Thermogravimetric analysis (TGA) was performed on the degraded nanocomposites and the activation energies were calculated by Friedman method, Flynn-Wall-Ozawa (FWO) method, Kissinger method, and DAEM (Distributed Activation Energy Method) based on the iso-conversional method. As the results, for the neat epoxy sample cases, it was found that the average activation energy was increased as the degradation was progressed. When the nano particles were mixed, however, the energy increased to the 15 environmental test cycles, and decreased afterwards, meaning that the particle mixture contributed adversely to the thermal degradation. Discussions on the results of the different calculation methods were also given.

8 MW급 대용량 풍력발전기용 피치 감속기 진동특성에 관한 연구

장서원,박세호,이형우 한국풍력에너지학회 2022 풍력에너지저널 Vol.13 No.4

In this paper, a study on the vibration characteristics of the pitch gearbox of 8 MW large capacity wind turbines was conducted. The vibration analysis method of the pitch gearbox was proposed by combining the planetary gear train vibration model with the housing and carrier finite element model using the substructural synthesis method. We modeled the vibration excitation source for mass unbalance, gear mesh frequency, and bearing defect error action on the pitch gearbox, and performed a critical speed analysis. As a result of analyzing the critical speed of the pitch gearbox, the critical speed for the excitation source did not occur within the operation speed (84.87 rpm). In addition, as a result of applying 10 %, 20 %, …, 100 % of the largest load duration distribution (LDD) load, it was found that the bearing stiffness and the primary natural frequency were larger as the LDD load was larger. The primary natural frequency was 81.47 Hz for the lowest load among LDD data, which exceeded an operating speed of 84.87 rpm (5.09 Hz), so it was found that vibration caused by the change of LDD load did not occur in the operating speed range.

정압기지에 대한 산불화재 영향평가

장서일,차순철,강경식 대한안전경영과학회 2007 대한안전경영과학회지 Vol.9 No.2

이상 시에 나타나는 거울-이미지 양상 연구 -거울 시편을 중심으로-

장서란 ( Jang Seo-lan ) 국제어문학회 2021 국제어문 Vol.- No.90

본고는 들뢰즈의 논의를 중심으로 거울 시편에 나타나는 거울-이미지의 양상과 이를 바탕으로 구성되는 “책임의사 이상”을 통하여 이상 시의 초현실주의적 정치성을 규명하였다. 거울 시편에서 나타나는 잠재태와 현실태의 식별불가능성은 기존의 진리 체계에 균열을 내고 새로운 사유를 촉발하는 탈영토화의 정치성과 연결된다. 거울-이미지는 기존 세계를 유기적으로 재현하는 기반으로서의 감각-운동 도식을 파괴한다. 실재와 거울상은 서로를 전제하며 반향하며, 타자(여성)-되기를 통하여 주체의 동일성이라는 기존의 진리 체계에 균열을 불러일으킨다. 나아가 시적 주체는 거울상을 진찰하려는 욕망을 통하여 자신의 고통을 외부로 확장시킨다. 진찰은 병환을 전제하며, 이상은 병환이 개인이 아닌 사회에서 비롯된 것임을 숫자와 기호를 통하여 제시한다. 그러므로 기존의 진리 체계인 감각-운동 도식을 파괴하는 비유기적 이미지인 거울-이미지는 현실을 고발하는 동시에 현실을 극복하려는 초현실주의적 정치성을 구현한다. This paper investigates the surreal political nature of the aspects of the Mirror-Image displayed on the mirror poems, centered on the discussion of Deleuze, as well as the “Yi sang the physician in charge” that is constructed based on the Image. The impossibility of distinguishing between potentialities and actualities, which is displayed in the mirror poems, exposes the politics of deterritorialization that breaks into the exisiting truth system and provokes a new thought. The Mirror-Image breaks the sensory-motor schema, which is a base that organically reproduces the existing world. The presence and the Mirror-Image reverberate on the premise of each other, and by the becoming-other(female), a rift is caused in the system of the subject’s identity. In addition, the poetic subject exudes his suffering through the desire to examine the Mirror-Image. The examination is premised on the illness and Yi Sang presents through the numbers and marks that the illness roots from the society level, not the individual level. Therefore, the Mirror-Image breaks the sensory-motor schema that is the preexisting truth system, and simultaneously accuses the present, while revealing the surreal politics that seeks to overcome the present.

정량적 위험성 평가에 의한 안전관리 투자의 비용-편익분석

장서일,이헌창,장영준,조지훈,김태옥 대한안전경영과학회 2001 대한안전경영과학회 학술대회논문집 Vol.2001 No.1

백석 시에 나타나는 긍정적 숭고 연구

장서란 ( Jang Seo-lan ) 국제어문학회 ( 구 국제어문학연구회 ) 2018 국제어문 Vol.0 No.76

본고의 목적은 백석 시의 주체가 대타자적 상징계가 부여한 정체성에서 벗어나 기억의 신화와 욕망의 신화라는 과거와 미래의 두 축을 통하여 정체성을 형성하는 긍정적 숭고의 주체임을 규명하는 데에 있다. 긍정적 숭고는 변증법적인 부정적 숭고와 달리 구분을 무화하는 상상계적 숭고이다. 상상계적인 긍정적 숭고는 구분을 무화하며 퇴행적인 이차적 나르시시즘을 보이는데 이는 백석 시의 전근대적 유년 세계의 모습과 비천한 것(abjection)의 귀환, 유년 세계가 지니는 양가적인 속성을 통하여 나타난다. 상징 질서에 대한 시적 주체의 상상계적 저항은 성인 화자의 경우에도 일관적으로 나타난다. 나아가 초월적 대상을 향한 시선을 통하여 고양된 정체성을 형성하는 “가난”한 시적 주체의 모습은 상상력을 통하여 상징을 이미지로 되돌림으로써 힘에서 벗어나는 긍정적 숭고의 특징을 반증한다. This study seeks to determine that the subject found in Baek Seok’s poetry is a subject of positive sublime, who breaks away from its identity granted by the Symbolic of the Other and forms it’s own’s individuality by double axis of past which future, myth of memory and myth of desire. Unlike dialectical negative sublime, positive sublime is an imaginary sublime which eliminates division. Imaginary positive sublime eliminates division and displays regressive secondary narcissism and is illustrated in Baek Seok’s poems by demonstration of premodern childhood, return of abjection, and ambivalent characteristics of childhood. Imaginary resistance of poetic subject against the symbolic order is consistent in adult narrator. Moreover, “indigent” the poetic subject forms enhanced self by attention on transcendental object, and this characteristic is a counterevidence for aspect of positive sublime which escape from power by returning symbol back to image.

역대 정부의 과학기술혁신 거버넌스

장서현,이성종,윤언균,정병규,최연수 한국기술혁신학회 2014 한국기술혁신학회 학술대회 발표논문집 Vol.2014 No.10