• 제목/요약/키워드: Convergent factors

검색결과 364건 처리시간 0.029초

Numerical Investigation of Countermeasure Effects on Overland Flow Hydrodynamic and Force Mitigation in Coastal Communities

  • Hai Van Dang;Sungwon Shin;Eunju Lee;Hyoungsu Park;Jun-Nyeong Park
    • 한국해양공학회지
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    • 제36권6호
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    • pp.364-379
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    • 2022
  • Coastal communities have been vulnerable to extreme coastal flooding induced by hurricanes and tsunamis. Many studies solely focused on the overland flow hydrodynamic and loading mechanisms on individual inland structures or buildings. Only a few studies have investigated the effects of flooding mitigation measures to protect the coastal communities represented through a complex series of building arrays. This study numerically examined the performance of flood-mitigation measures from tsunami-like wave-induced overland flows. A computational fluid dynamic model was utilized to investigate the performance of mitigation structures such as submerged breakwaters and seawalls in reducing resultant forces on a series of building arrays. This study considered the effects of incident wave heights and four geometrically structural factors: the freeboard, crest width of submerged breakwaters, and the height and location of seawalls. The results showed that prevention structures reduced inundation flow depths, velocities, and maximum forces in the inland environment. The results also indicated that increasing the seawall height or reducing the freeboard of a submerged breakwater significantly reduces the maximum horizontal forces, especially in the first row of buildings. However, installing a low-lying seawall closer to the building rows amplifies the maximum forces compared to the original seawall at the shoreline.

학생들의 과학긍정경험에 영향을 주는 과학교육 선도학교 특성에 대한 질적 탐구 (Qualitative Inquiry of Features of Science Education Leading Schools on Students' Positive Experiences about Science)

  • 곽영순;이성희;강훈식;신영준;이수영
    • 한국초등과학교육학회지:초등과학교육
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    • 제38권3호
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    • pp.317-330
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    • 2019
  • The purpose of this study is to investigate the influences of science leading schools on primary and middle school students' positive experiences about science (PES) through in-depth interviews with teachers in charge of science leading schools. Science leading schools at the primary and middle school level such as Creative Convergent Science Labs and Student Participatory Science Classes were investigated and 11 teachers were participated in focus group interviews. Teacher in-depth interviews were conducted to explore the factors that led to the effectiveness of science leading schools in improving the student's PES in light of operational characteristics of science leading schools, characteristic factors of science leading schools on students PES, and improvement plans and requirements of science leading schools, as well as implications for general high schools. Science leading schools including Creative Convergent Science Labs and Student Participatory Science Classes applied for the leading school funding to secure supplies, equipments, and lab improvement for authentic science classes. In addition, reconstructed the curriculum more broadly than before, and emphasized and expanded student participatory classes and process-centered assessment at the teacher learning community level. Through student-participatory classes, the science leading schools stimulate students' interest in science, provide students with PES) through various instructions including projects, engage students in interesting science experiences in Creative Convergent Science Labs, and enhance inquiry skills and PES as well as science content knowledge. Based on the results, ways to spread the characteristics of science leading schools to general schools are suggested including expanding budget support, securing the space of science labs and improving spatial composition, providing diverse teaching and learning materials, diversifying assessment subjects and methods, and the necessity of teachers' continuous professional development, etc.

걸음마기 아동 기질척도의 타당도 연구 (Convergent and Discriminant Validity of the Toddler Behavior Assessment Questionnaire in Korean Children)

  • 박성연;케네스 루빈
    • 아동학회지
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    • 제28권5호
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    • pp.55-72
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    • 2007
  • Replication of the factor structure of the TBAQ(Toddler Behavior Assessment Questionnaire Goldsmith, 1988) in Korean 2-year-old children was examined by Multitrait Multimethod matrix of observed and reported child behavior. Participants included 113 toddlers and their mothers. Three factors comprising 63 items were identified and labeled as easy, difficult and fearful. On the Child Behavior Checklist(Achenbach & Edelbrock, 1983) difficult temperament was positively related to externalizing while fearful temperament was positively related to internalizing problems. Observation of inhibited child behavior in both unfamiliar social and nonsocial situations demonstrated a positive relationship to observed inhibition of fearful temperament. Easy temperament correlated negatively with both social inhibition and internal behavior problems. Results supported construct validity of TBAQ factors for Korean 2-year-old children.

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Analysis of Suicide Research on Multicultural Youth in Korea

  • Oh, Youngsub
    • 예술인문사회 융합 멀티미디어 논문지
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    • 제8권5호
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    • pp.269-277
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    • 2018
  • As multicultural population has been drastically increasing over the decade in Korea, their quality of life needs to be studied. This study focuses on multicultural youths' suicidal issue in Korea. Suicide is one of the most obvious indicators to show the current status of mental health. Unfortunately, suicide attempt rate of multicultural youths was two-times more than that of non-multicultural youths in Korea during the past two years(2014-15). Through the literature review in Korea as well as the United States, this study explores the related variables to their suicide attempt. Research result says that multicultural youth's suicide is related to a variety of variables, including physical, psychological, educational, socio-economical, and cultural variables. Research implications are as follows: First, these variables can be utilized as predictive or protective factors to prevent their suicide. Second, theoretical framework for comprehensively understanding their suicidal issues needs to be developed. Third, both emergent and normal suicidal interventions need to be provided for multicultural youth in Korea.

종합병원 행정직원의 직무스트레스와 관련된 융복합적 요인 분석 (Analysis of Convergent Factors Related to Occupational Stress among General Hospital Administrative Staff)

  • 김승희;배상윤
    • 디지털융복합연구
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    • 제16권4호
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    • pp.259-265
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    • 2018
  • 본 연구는 종합병원 행정직원의 직무스트레스와 관련된 융복합적 요인들을 조사하였다. 조사는 2016년 11월 1일부터 2017년 1월 31일까지 J시의 11개 종합병원에서 임의로 선정된 행정직원 221명에 대하여 무기명 자기기입식 설문지를 통해 이루어졌다. 위계적 다중회귀분석 결과, 조직공정성의 분배가 낮을수록, 자아존중감이 낮을수록, 자기효능감이 낮을수록, 직무스트레스가 높았으며 이들의 설명력은 39.5%이었다. 이상의 연구결과를 볼 때, 종합병원 행정직원의 직무스트레스를 낮추기 위해서는 조직공정성의 분배를 높이고, 자아존중감 및 자기효능감을 높이는 노력이 필요하다. 이러한 결과는 종합병원 행정직원의 직무스트레스를 낮추는 조직 및 인사관리에 활용이 기대된다. 향후연구에서는 종합병원 행정직원의 직무스트레스에 영향을 미치는 추가요인에 대한 조사와 구조모형에 대한 분석이 필요하다고 본다.

초산부의 신체상, 자기효능감이 양육스트레스에 미치는 융복합적 영향 (Convergent Influence of Body Image, Self Efficacy on Parenting Stress of Primipara Women)

  • 김보미;김은희
    • 디지털융복합연구
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    • 제15권10호
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    • pp.493-500
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    • 2017
  • 본 연구는 초산부의 신체상, 자기효능감, 양육스트레스의 관계를 확인하고 초산부의 양육스트레스에 미치는 요인을 파악하기 위한 연구이다. 자료 수집은 U시 소재의 2개 산부인과 전문병원에서 분만 한 초산부 134대상으로 설문지를 이용하여 2017년 1월 1일부터 3월 31일까지 실시하였다. 수집한 자료는 SPSS/WIN 22.0 program을 이용하여 기술통계, 상관관계, 다중회귀분석을 하였다. 연구 결과 신체상, 자기효능감, 양육스트레스는 유의한 상관관계가 있었으며, 초산부의 양육스트레스에 영향을 미치는 유의한 변수는 퇴원 후 지지자, 신체상, 가족의지지로 전체 설명력은 29.5%이었다. 따라서 초산부의 양육스트레스에 미치는 요인을 바탕으로 양육스트레스를 감소시키며, 양육스트레스에 대처할 수 있는 능력을 향상시킬 수 있는 프로그램의 개발이 필요하다. 또한 더 나아가 초산부가 지각하는 폭넓은 범위의 양육스트레스 원인 탐색 후 초산부를 위한 중재프로그램 개발이 필요하다.

양 벽면에 V/⋀형 리브가 있는 수축 채널의 열전달과 전 마찰계수 (Heat Transfer and Total Friction Factors in the Convergent Channels with V/⋀-shaped Ribs on Two Opposite Walls)

  • 이명성;허민성;정의재;박영준;유정현;임건우;안수환
    • 동력기계공학회지
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    • 제20권5호
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    • pp.66-71
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    • 2016
  • The measurements of heat transfer and total friction factors for turbulent flows in the convergent rectangular channels with two opposite in-line ribbed walls are reported. The study has covered three different angled ribs ($30^{\circ}$, $45^{\circ}$ and $60^{\circ}$) and Reynolds number in the range of 22,000 to 75,000. The channel, composing of ten isolated copper sections in the length of test section of 1 m, has the channel convergence ratio of $D_{ho}/D_{hi}=0.67$. The results show that the ribs pointing downstream (${\wedge}-shaped$) is somewhat greater than the ribs pointing upstream (V-shaped) in the dimensionless Nusselt number and total friction factors.

학교 밖 청소년의 문제행동 관련 융복합적 요인: 성별차이를 중심으로 (Convergent Factors Affecting Problem Behaviors in Out-of-school Adolescents: A Focus on Gender Difference)

  • 이재영
    • 디지털융복합연구
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    • 제16권10호
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    • pp.333-342
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    • 2018
  • 본 연구는 학교 밖 청소년을 대상으로 문제행동에 미치는 융복합적 요인을 성별차이를 중심으로 분석하였으며, 부산여성가족개발원에서 실시된 학교 밖 청소년 연구자료를 이용한 이차자료 분석 연구이다. 연구대상자는 총 499명의 학교 밖 청소년이며, 남자는 337명, 여자는 162명이었다. 본 연구에서 조사한 문제행동은 가출, 학업중단, 성매매, 폭력, 인터넷게임중독, 절도, 약물중독 및 흡연이었다. 수집된 자료는 로지스틱 회귀분석으로 분석하였다. 본 연구의 문제행동 중 인터넷게임중독과 절도는 남자 학교 밖 청소년이 여자 학교 밖 청소년보다 높았다. 인터넷게임중독은 남자 학교 밖 청소년이 여자학교 밖 청소년보다 1.90배 높았다(p=.008, 95% CI=1.18-3.06). 절도는 남자 학교 밖 청소년이 여자 학교 밖 청소년보다 1.92배 높았다(p=.006, 95% CI=1.21-3.03). 앞으로 학교 밖 청소년의 문제행동을 예방하고 이에 대한 사회적 대책을 마련할 때, 문제행동의 양상과 성별에 따라 차별화된 접근이 필요하다.

대학생의 자아탄력성, 심리사회적 성숙도가 스트레스 대처방식에 미치는 융복합적 영향 (Convergent Influence of Ego-Resilience, Psycho-Social Maturity on Stress Coping Styles of University Students)

  • 김금순;김보미
    • 디지털융복합연구
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    • 제15권3호
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    • pp.375-383
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    • 2017
  • 본 연구는 대학생의 자아탄력성, 심리사회적 성숙도와 스트레스 대처방식의 관계를 확인하고 대학생의 스트레스 대처방식에 미치는 요인을 파악하기 위한 연구이다. 자료 수집은 A시 소재의 3개 대학에 재학 중인 대학생 200명으로 설문지를 이용하여 2016년 6월 1일부터 6월 30일까지 실시하였다. 수집된 자료의 분석은 SPSS WIN 22.0을 이용하여 기술통계, 상관관계, 다중회귀분석을 하였다. 연구 결과, 자아탄력성과 심리사회적 성숙도, 스트레스 대처방식은 유의한 상관관계가 있었으며, 대상자의 스트레스 대처방식에 영향을 미치는 유의한 변수는 성적, 대인관계, 심리사회적 성숙도였고, 전체 설명력은 38%이었다. 따라서 스트레스 대처방식에 미치는 요인을 바탕으로 대학생의 스트레스 대처방식을 향상시킬 수 있는 프로그램의 개발이 필요하고, 더 나아가 관련요인을 바탕으로 국내 대학생을 위한 스트레스 대처방식의 도구개발이 필요할 것이다.

한국어판 간호학생 간호실무준비도 측정도구의 타당도와 신뢰도 (The Validity and Reliability of the Korean Version of Readiness for Practice Survey for Nursing Students)

  • 이태화;지윤정;윤예슬
    • 대한간호학회지
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    • 제52권6호
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    • pp.564-581
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    • 2022
  • Purpose: This study aimed to evaluate the validity and reliability of the Korean version of the Readiness for Practice Survey (K-RPS). Method: The English Readiness for Practice Survey was translated into Korean using the Translation, Review, Adjudication, Pretesting, and Documentation (TRAPD) method. Secondary data analysis was performed using the dataset from the New Nurse e-Cohort study (Panel 2020) in South Korea. This study used a nationally representative sample of 812 senior nursing students. Exploratory and confirmatory factor analyses were also conducted. Convergent validity within the items and discriminant validity between factors were assessed to evaluate construct validity. Construct validity for hypothesis testing was evaluated using convergent and discriminant validity. Ordinary α was used to assess reliability. Results: The K-RPS comprises 20 items examining four factors: clinical problem solving, learning experience, professional responsibilities, and professional preparation. Although the convergent validity of the items was successfully verified, discriminant validity between the factors was not. The K-RPS construct validity was verified using a bi-factor model (CMIN/DF 2.20, RMSEA .06, TLI .97, CFI .97, and PGFI .59). The K-RPS was significantly correlated with self-esteem (r = .43, p < .001) and anxiety about clinical practicum (r = - .50, p < .001). Internal consistency was reliable based on an ordinary α of .88. Conclusion: The K-RPS is both valid and reliable and can be used as a standardized Korean version of the Readiness for Practice measurement tool.