• 한국지역사회생활과학회지
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• 제21권1호
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• pp.81-90
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• 2010

This study aimed to identify the contributors of extra-curricular activities of preschool children focusing on home environmental factors(financial capital, human capital, and social capital) and maternal belief about factors on academic achievement(child's effort, child's ability, teacher's instruction, and maternal teaching). One hundred and seventy three mothers whose preschool children were attending child-care centers in Seoul and Kyunggi-Do participated in the survey. Kinlaw et al.(2001)'s Importance of Effort/Ability Scale was used to assess the mother's belief about the factors on academic achievement. Stipek et al.(1992)'s Activities Sub-scales was revised to measure a social capital, that is the mother's formal and informal activities providing to their preschool child. Educational level was utilized as human capital and monthly income was considered as financial capital. Also, using open ended questions, the subjects were asked to respond to the numbers of extra-curricula activities their child was presently attending, and when he or she began to attend the extra-curricular activity. The main results are as follows. In general, the mothers provided informal activities to their preschool child more than formal activities. Also, they believed the teacher's instruction is the most important and the child's ability the least important in their child's academic achievement. The number of extra-curricular activities was predicted by mothers' formal activities and their belief on their child's ability. The age of starting extra-curricular activities were explained by mothers' formal activities and their educational level.

• Journal of the Korean Data and Information Science Society
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• 제15권1호
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• pp.183-191
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• 2004

This paper shows that there are some extra-factors on the evaluation of lecture by students. The extra-factors are sex, day and nighttime, academic year, size of lecture, and grades. And this paper analysis the proportion of the student which put the same mark on all items(same marked proportion).

• 말소리와 음성과학
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• 제6권4호
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• pp.17-26
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• 2014

The present study examined epenthetic vowels produced by Korean learners of English in read sentences, in terms of acoustic measures and extra-phonological factors. The results demonstrated three main findings. First, epenthetic vowels had relatively high F1 values and a wide range of F2 values. Most of the epenthetic vowels were inserted near Korean high central vowels, but some vowels were inserted near front vowels due to co-articulation with surrounding vowels. Second, vowel epenthesis was affected by the context. The results showed that the epenthesis was frequently seen with word junctions between obstruents (e.g., stops-fricatives). Third, Korean learners were not affected by English background and were very weakly affected by orthography. English experience, which is one of the extra-phonological factors, was not related to epenthesis production. However, orthography, the other extra-phonological factor, very weakly affected the amount of epenthesis production. Nine percent of all epenthesis production was affected by the English past-tense suffix '-ed'; approximately 70% of the participants were affected by this suffix. The findings of the present study contributed to understanding vowel epenthesis. First, the study revealed that the epenthetic vowels produced by Korean learners of English were close to the high central vowel, supporting previous studies that the epenthetic vowel is quite close to the shortest vowel. Second, the study examined the various phonetic environments of epenthetic vowels, revealing that vowel epenthesis occurred more frequently in a certain phonetic circumstance.

• Wind and Structures
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• 제28권5호
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• pp.299-313
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• 2019

In order to examine the effects of different wind deflectors on the wind load distribution characteristics of extra-large cooling towers, a comparative study of the distribution characteristics of wind pressures on the surface of three large cooling towers with typical wind deflectors and one tower without wind deflector was conducted using wind tunnel tests. These characteristics include aerodynamic parameters such as mean wind pressures, fluctuating wind pressures, peak factors, correlation coefficients, extreme wind pressures, drag coefficients and vorticity distribution. Then distribution regularities of different wind deflectors on global and local wind pressure of extra-large cooling towers was extracted, and finally the fitting formula of extreme wind pressure of the cooling towers with different wind deflectors was provided. The results showed that the large eddy simulation (LES) method used in this article could be used to accurately simulate wind loads of such extra-large cooling towers. The three typical wind deflectors could effectively reduce the average wind pressure of the negative pressure extreme regions in the central part of the tower, and were also effective in reducing the root of the variance of the fluctuating wind pressure in the upper-middle part of the windward side of the tower, with the curved air deflector showing particularly. All the different wind deflectors effectively reduced the wind pressure extremes of the middle and lower regions of the windward side of the tower and of the negative pressure extremes region, with the best effect occurring in the curved wind deflector. After the wind deflectors were installed the drag coefficient values of each layer of the middle and lower parts of the tower were significantly higher than that without wind deflector, but the effect on the drag coefficients of layers above the throat was weak. The peak factors for the windward side, the side and leeward side of the extra-large cooling towers with different wind deflectors were set as 3.29, 3.41 and 3.50, respectively.

• 한국건설관리학회논문집
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• 제6권5호
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• pp.110-118
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• 2005

개발형 건설프로젝트의 성공은 사업초기단계에서 얼마나 정확히 프로젝트의 타당성을 분석하고 예측하는가에 달려 있다. 그러나 건설프로젝트는 매우 다양하고 각 프로젝트별로 고려되는 요소들도 각기 다르게 적용된다. 또한, 다양한 주변의 환경요인으로 인해 프로젝트의 타당성을 사업초기단계에서 예측하는 것이 어려운 경우가 많다. 본 연구는 개발형 프로젝트중 공동주택 개발사업의 사업타당성 분석에 필요한 분석 대상항목 및 평가기준 설정을 연구의 목적으로 한다. 분석 대상항목 및 평가기준설정을 위해 관련 전문가를 대상으로 한 설문조사를 실시하여 각 분석 대상항목별 중요도에 의한 가중치를 산정하여 타당성 분석 평가기준을 마련하는데 이용토록 한다. 제시된 사업 타당성 분석 대상항목과 평가항목의 평가범위 기준설정은 사업타당성 분석업무 수행에 있어 유용하게 활용될 것으로 기대된다.

• 수산해양교육연구
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• 제24권2호
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• pp.234-245
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• 2012

This study aims to analyze the factors of the extra-curricula area in personal school performance record and propose the practical strategies for entrance examination affairs on this area. To address this goal, we have applied a SWOT analysis with related documents and research results. We found out five strengths: (S1) Link the students' experience to right people for the university, (S2) Quantitative Indicators, (S3) Qualitative Indicators, (S4) Link to other evaluation factors, and (S5) Analysis of Human Resource. The weakness included: (W1) Fairness, (W2) Reliability, (W3) Difficulties to set standards, (W4) Difficulties to set environments, and (W5) Lack of systemic experience of an evaluation. We also discovered five opportunities (O1) Recognition of public education, (O2) The need of national support, (O3) The importance of autonomy, (O4) Specialization, and (O5) Networks. Finally, threat factors consisted of: (T1) Frequent change of educational policy, (T2) Increasing of private education, (T3) Lack of information and preparation time, and (T4) The accuracy and reliability of personal school records. Based on these results, we suggested practical strategies with these four dimensions: S-O, W-O, S-T, and W-T.

• 가정과삶의질연구
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• 제17권4호
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• pp.159-172
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• 1999

Relationships between socio-demographic variables and parents' education invest-ment motivation variables and extra-class private education expenditures were examined using a sample of 602 households in Inchon Korea. Tobit analysis was used. Singal-cognitive motivation parents' duty motivation household income housing asset father's occupation class and number of children had significant effects on extra-class private education expenditures on general high school students. To alleviate overspending in extra-class private education diploma pursuing society has to be changed and formal school education need to be properly functioning. Finally parents seek new child education paradigm for the creative labor demand in the next millenium.

• Asian Journal for Public Opinion Research
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• 제7권2호
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• pp.113-140
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• 2019

Experiencing work as a calling has been associated with various positive work-related attitudes and outcomes. Recent studies have examined personal and contextual factors related to job calling; however, gaps remain in the literature on how employees' perception of organizational environment may lead to the formation of employees' job calling. We focused on psychological climate of innovation as the predictor of employees' job calling and further investigated its effect on extra-role behaviors, including innovative work behavior (IWB) and organizational citizenship behavior (OCB). A total of 165 Malaysian employees from diverse industries and organizations participated in a self-reported online questionnaire. We found support for the mediation model in which the association between a psychological climate of innovation and increased extra-role behaviors through increased job calling. Altogether, these findings provided new insights into the important role of innovative climate on employees' job calling and the mediating role of job calling on extra-role behaviors within occupational settings. Theoretical and practical implications are further discussed.

• Restorative Dentistry and Endodontics
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• 제37권3호
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• pp.136-141
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• 2012

Objectives: The maintenance of the healthy periodontal ligament cells of the root surface of donor tooth and intimate surface contact between the donor tooth and the recipient bone are the key factors for successful tooth transplantation. In order to achieve these purposes, a duplicated donor tooth model can be utilized to reduce the extra-oral time using the computer-aided rapid prototyping (CARP) technique. Materials and Methods: Briefly, a three-dimensional digital imaging and communication in medicine (DICOM) image with the real dimensions of the donor tooth was obtained from a computed tomography (CT), and a life-sized resin tooth model was fabricated. Dimensional errors between real tooth, 3D CT image model and CARP model were calculated. And extra-oral time was recorded during the autotransplantation of the teeth. Results: The average extra-oral time was 7 min 25 sec with the range of immediate to 25 min in cases which extra-oral root canal treatments were not performed while it was 9 min 15 sec when extra-oral root canal treatments were performed. The average radiographic distance between the root surface and the alveolar bone was 1.17 mm and 1.35 mm at mesial cervix and apex; they were 0.98 mm and 1.26 mm at the distal cervix and apex. When the dimensional errors between real tooth, 3D CT image model and CARP model were measured in cadavers, the average of absolute error was 0.291 mm between real teeth and CARP model. Conclusions: These data indicate that CARP may be of value in minimizing the extra-oral time and the gap between the donor tooth and the recipient alveolar bone in tooth transplantation.

• Journal of Chest Surgery
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• 제38권5호
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• pp.377-381
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• 2005

해부학적 회로 조성술을 이용할 수 없는 환자에게서 시행되는 해부외 회로 조성술에 대하여 이술식의 적정성을 알아보고자 본 연구를 시행하였다. 대상 및 방법: 부산대학교병원 흉부외과에서 해부외 회로 조성술을 시행받은 31명의 환자를 대상으로 동반질환, 원인질환, 수술 당시의 증상, 개존율과 개존율에 영향을 미치는 요인 등을 분석하였다. 결과: 31예의 수술 중 대퇴-대퇴동맥 우회술이 26예, 액와-대퇴동맥 우회술이 5예였고 평균 연령은 70.23세였다. 동반질환은 고혈압, 고지혈증, 허혈성심질환의 순이었고 수술 적응증은 파행, 조직괴사, 휴식기 통증 등의 순이었다. 대퇴-대퇴동맥 우회술을 대상으로 이식편의 일차 개존율에 영향을 미치는 요인들을 분석하였으나 나이(65세 이상), 흡연력, 고혈압, 허혈성 심장질환, 심한 하지 허혈, 고지혈증 등의 유무에 따른 개존율은 통계학적으로 유의한 차이가 없었다. Kaplan-Meier법을 이용한 이식편의 일차 개존율은 1년 $73.65\%$, 2년 $73.65\%$, 3년$65.46\%$였다. 결론: 수술의 위험도가 높은 환자들에게서 해부외 회로 조성술은 해부학적 회로 조성술에 비해서 개존율이 낮다고 알려져 있지만 술식이 간단하고 덜 위험하며 이식혈관 부전시 교정도 상대적으로 쉽게 할 수 있는 장점을 가진 치료법임을 알 수 있었다.