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이음 철근 사이 간격이 넓은 D13, D19 철근의 비접촉겹침이음 실험
문소현,천성철 한국콘크리트학회 2024 콘크리트학회논문집 Vol.36 No.1
In the Concrete Design Code of Korea, bars spliced by noncontact lap splices should not be spaced transversely farther apart than the lesser of one-fifth the required lap splice length or 150 mm. The structural behavior of noncontact lap splices with D13 and D19, which are spaced transversely farther apart than the provisions of the Concrete Design Code of Korea, was tested in this work. The test results showed that the behavior of noncontact laps is similar to the behavior of contact laps within the transverse spacing of spliced bars of 225 mm. Regardless of the spacing between spliced bars, the flexural cracks on the sides were similar for all specimens. The load-deflection relationships of all specimens were similar to the deflection curves of flexural members determined according to KDS 14 20 30, implying that all specimens deformed like ideal flexural members. As the spacing between spliced bars increases, there is no significant difference in the load-deflection relationships. Comparisons of test results of noncontact laps with the predictions by the design code provision, Orangun et al. (1977)’s equation, and the ACI Committee 408 equation show that the test-to-prediction ratios of 1.27, 1.54, and 1.23, respectively, indicating that the noncontact laps had sufficient strength. Consequently, noncontact laps within a 225 mm transverse spacing have equivalent strength and behavior and can be safely designed using the previous equations.
일 지역 학령기 아동이 지각한 부모 양육태도와 애착 및 아동의 스트레스 대처 방식과 부적응 행동과의 관계
문소현 한국모자보건학회 2012 한국모자보건학회지 Vol.16 No.1
Objectives: This is an explanatory correlational study to identify the relationship among perceived parental rearing attitude, attachment, children's stress coping styles, and maladjustment behaviors in school-age children. Methods: Data were collected from 406 students in grades 5 or 6 who understood the purpose of the study and agreed to participate. Data were analyzed by descriptive statistics, t-test, Pearson's correlation coefficient, and stepwise multiple regression using SPSS 12.0. Results: There were significant differences in maladjustment behaviors between upper 25% and lower 25 group of parental warmth/acceptance & rejection/restriction rearing attitude, mother permissiveness/nonintervention rearing attitude and parental attachment. Result from the multiple regression analysis revealed difference in the related factors and in the magnitude of the relationship evaluated by the standardized beta coefficients. Significant factors, listed by the magnitude of beta coefficients, were father rejection/ restriction rearing attitude, sense of alienation in maternal attachment, father warmth/ acceptance rearing attitude and passive coping styles. These variables accounted for 39.5% of maladjustment behaviors. Conclusion: These results may contribute to a better understanding of maladjustment behaviors in school-age children. For the effective management and prevention of school- aged children's maladjustment behaviors, programs including familial factor and stress coping styles should be established. Further research is necessary in order to draw consensus on roles of the related factors of maladjustment behaviors.
지속적인 평가 루브릭 제시에 의한 초등학생들의 과학 글쓰기 수준 변화
문소현,양일호 한국교원대학교 뇌기반교육연구소 2014 Brain & Learning Vol.4 No.2
The purposes of this study was to examine what change appears in the science writing level of the elementary students if the rubric is continuously provided with the science writing assignment, and what experience and recognition the students have while using the rubric. The science writing assignment and the rubric were applied to 35 fifth graders for total 4 sessions. The science writing results were assessed through the consultation with 3 scientific education professionals of the rubric department and the contents were analyzed to analyze at the science writing level change of the students. Depth interview results were analyzed. First, as the rubric was continuously provided, the science writing level of students changed in several criteria as the session repeated. While students were writing the scientific contents relying on the individual thought rather than creating the scientific contents during the science writing until they contacted the rubric, they recognized the importance of contents creation through the guidance of the rubric. Second, students who contacted the rubric grasped the object of the rubric correctly and were anxious in using it but expected the change by the constant use. Students whose science writing level was improved had a high use frequency of the rubric and recognized the valuation criteria clearly which was considered to be necessary to them. The students wanted the number of criteria of the rubric to decrease and the terms and performance scales to be presented clearly so that it would be easy to understand.
문소현 한국아동간호학회 2008 Child Health Nursing Research Vol.14 No.4
Purpose: The purpose of this study was to examine gender differences in eating disorders and in several risk factors; body dissatisfaction, perfectionism, self-esteem, and depression. Method: The data were collected from 423 students in grades 5 or 6 (230 male and 193 female) in this cross-sectional study. For data analysis, descriptive statistics, t-test, Pearson correlation coefficient, and stepwise multiple regression were used with the SPSS/PC ver 12.0 program. Results: Girls experienced more symptoms of eating disorders, body dissatisfaction, and depression than boys. There were also gender differences in risk factors. For girls, depression, socially-prescribed perfectionism, and body dissatisfaction were related to eating disorder behaviors, whereas for boys, depression, self-oriented perfectionism, body dissatisfaction, and self-esteem were related to eating disorder behaviors. Conclusions: The results of the present study indicate that risk factors for eating disorders for boys and girls may be different, and these differences have implications for understanding the etiology of eating disorders and should be considered in planning possible nursing interventions.
여대생의 취업스트레스, 스트레스 대처방식 및 월경전후기 증상간의 관계
문소현,조헌하 한국자료분석학회 2014 Journal of the Korean Data Analysis Society Vol.16 No.4
The purpose of this study was to investigate the relation of job seeking stress and stress coping styles to perimenstrual symptoms in college women. The study was conducted, based on a sample of 398 female college students in Muan in Korea. The data were analyzed using descriptive statistics, t-test, ANOVA and Pearson correlation with SPSS WIN 21.0 program. There were significant differences in perimenstrual symptoms between upper and lower group of job seeking stress. As a result of correlation analysis, overall relationships among job seeking stress, stress coping styles were significant with college women’s perimenstrual symptoms. There were significantly positive effects between job seeking stress and passive stress coping style. Also, perimenstrual symptoms were positively associated with active and passive stress coping styles. College women frequently using the passive coping styles reported higher perimenstrual symptoms. The group of higher score on job seeking stress and passive coping styles got significantly higher score on perimenstrual symptoms. For the effective management and prevention of female college students’ PMS (premenstrual syndrome) programs including job seeking stress and stress coping styles should be established. Further research is necessary in order to draw consensus on roles of the related factors of PMS. 본 연구는 여대생을 대상으로 취업스트레스와 스트레스 대처방식이 월경전후기 증상에 미치는 영향을 파악하여 월경전후기 증상 관리를 위한 프로그램 개발의 기초자료로 활용하고자 시도되었다. 여대생 389명을 대상으로 자료를 수집하였고, 수집된 자료는 SPSS Win 21.0프로그램을 이용하여 기술통계, 상관관계 및 t-test, ANOVA를 실시하였다. 연구결과 월경전후기 증상은 대상의 일반적 특성 중 월경기간, 월경량, 월경통 유무, 진통제 복용 유무에 따라 유의한 차이가 있었다. 월경전후기 증상은 취업 스트레스가 높은 그룹이 낮은 그룹보다 통계적으로 유의하게 높았고, 하위영역별 불안, 수분축적, 당 섭취요구, 우울, 통증점수 역시 그룹 간 통계적으로 유의한 차이가 있었다. 스트레스 대처 방식 중 소극적 대처를 많이 사용하는 군이 적극적 대처를 많이 사용하는 군보다 취업스트레스와 월경전후기 증상점수가 통계적으로 유의하게 높은 것으로 분석되었다. 월경전후기 증상은 취업스트레스와 하위영역 중 성격 스트레스, 학교환경 스트레스, 가족환경 스트레스와 유의한 정적 상관관계가 있는 것으로 나타났다. 또한 월경전후기 증상은 스트레스 대처방식 하위 영역인 적극적 대처방식, 소극적 대처방식 간 유의한 정적 상관관계를 보였다. 따라서 20대 여대생이 경험하는 주요한 스트레스 요인으로 정신건강에서 간과할 수 없는 취업스트레스와 스트레스에 대한 대처방식을 고려한 관리 프로그램을 통해 여대생의 월경전후기 증상을 완화시키는 것이 필요할 것이다.