진공계에 대한 화학 세척의 효과

유선일 포항공과대학 1991 국내석사

日帝强占期 民衆佛敎 大華敎에 關한 硏究

유선경 圓光大學校 2006 국내석사

천연가스 액화를 위한 초저온 캐스케이드 공정에 관한 연구

유선일 부경대학교 대학원 2011 국내박사

Abstract Refrigeration technology is widely used in the various cryogenic applications including liquid-fuel rockets, MRI (Magnetic Resonance Imaging), HTS (High Temperature Superconductor), and natural gas liquefaction according to the development of new refrigeration cycles, compressors, and cryogenic heat exchangers. Among the applications, natural gas liquefaction is highlighted for the world's future energy economy, because of its relative cleanness and large reserves in comparison with other fossil fuels. Natural gas is a mixture of methane, ethane, propane, butane and other hydrocarbons. Fraction of methane in natural gas is about 80%. Natural gas is delivered from gas wells to end users largely in two ways; PNG (Pipeline Natural Gas) system and LNG (Liquefied Natural Gas) system. LNG transportation requires the liquefaction of natural gas at -162℃. The liquefaction plant is a combination of pre-processing, fractionation, liquefaction and storage facilities. It takes the highest position in the value chain of natural gas industry. In this study, a simulation was carried out focusing on the cascade process, which is applied to the natural gas liquefaction. The simulation was consisted of propane, ethylene, and methane cycles. The effects of an inter-cooler and of a liquid-gas heat exchanger were first researched with the Phillips Optimized Cascade Process using HYSYS software. Afterward, the Phillips Optimized Cascade Process was modified to include an expander in the methane cycle and the ethylene cycle. The main conclusions of this study are : In the cascade process with an inter-cooler, an optimum performance of liquefaction ratio and a specific energy can be obtained by the small compression work and high COP (Coefficient Of Performance). The result shows that a medium pressure and a bypass ratio for each cycle are: 600 kPa and 23% for the propane cycle, 1,400 kPa and 13.1% for the ethylene cycle, and 679 kPa and 23.5% for the methane cycle. When the liquid-gas heat exchanger is applied with the increasing of the refrigerant bypass rate, the compression work decreases due to the sub-cooling effect. The number of the optimal compression stages is four, four, and five for the propane, ethylene, and methane cycles, respectively. This stages show the same number in the cascade process with an inter-cooler and in the Phillips Cascade Process with an inter-cooler. In comparison with the basic cascade process, the results of the 4-4-5 stage of the inter-cooler cascade process show 27.6% less compression work, 6.3% less refrigeration capacity, 27.6% less specific energy, and 29.5% higher COP. In comparison with the Phillips Cascade Process, the 4-4-5-stage of the inter-cooler cascade process has 5.8% less compression work, 1.9% less refrigeration capacity, 5.8% less specific energy, and 4.1% higher COP. It is found that the compression-expansion process using the expander allows a part of the heat duty to shift from the low temperature region to the high temperature region. The total power consumption of the expanded cascade process is about 7% less than the conventional Phillips Cascade Process due to the reduced refrigerant mass flow. It is possible to remove the propane cycle from the Phillips Cascade Process by splitting the ethylene cycle. One of two streams in this cycle is used as refrigerant in a Reverse Brayton Cycle. Although there are disadvantages of relatively large compression work, low COP, and low specific energy, the new cascade process is an attractive alternative, because it provides extra compactness and simplicity by the use of only two pure refrigerants without the propane cycle in the conventional process.

旋削다듬질 보오링에 關한 硏究 : 圓形 및 四角斷面 보오링 바아의 比較

유선일 高麗大學校 1985 국내석사

활성탄의 급여가 젖소 송아지와 자돈의 성장 및 배설물의 Ammonia 함량에 미치는 영향

유선일 충남대학교 대학원 2007 국내석사

This study was carried out to investigate the influences of feed with activated charcoal on the performances of calves and weanling pigs. The daily weight gain, feed intake, feed requirement and the content of ammonia in the excreta were measured. The experiment was conducted with 10 calve for 30 days, and 16 weanling pigs for 14 days. Each were equally divided with treatment group and control group and for the treatment group's animal fed diets containing 1.0% activated charcoal. The result of the study are as follows. The daily weight gain of calves was decreased by 1.92% when they were fed activated charcoal and the daily feed intake of treatment group was 10.06% lower comparing to the control group. In case of feed requirement, the result showed 8.2% lower in the treatment group than control group. The content of ammonia in excreta was significantly lower for treatment group(0.33ppm) than control group (2.67ppm)(p<0.05), which showed more improvement for reducing ammonia content in the treatment group with 87.6%(p<0.05). While daily weight gain of weanling pigs had 5.88% of improvement when they were fed with activated charcoal but the feed intake didn't showed much difference. However, the feed requirement of the treatment group was 7.14% higher than the control group. The content of ammonia in the excreta measured in the treatment group showed 65.0% decrease comparing to the control group, which shows considerable improvement(p<0.05). 본 연구는 사료에 활성탄을 첨가했을 때 송아지와 자돈의 일당 증체량, 사료 섭취량, 사료 요구율 및 배설물의 ammonia 함량에 미치는 영향을 조사하기 위하여 송아지 10두를 30일 동안, 자돈 16두를 14일 동안 대조구, 시험구로 각 5두, 8두씩 공시하여 시험구 사료에 활성탄을 1.0% 첨가하였으며, 실험 결과를 요약하면 다음과 같다. 송아지의 일당 증체량은 활성탄을 급여했을 때 1.92% 감소하였으나, 일당 사료 섭취량은 시험구가 대조구에 비해서 10.06% 낮았으며, 사료 요구율은 시험구에서 8.2% 낮은 결과를 나타내었다. 송아지 배설물의 ammonia 함량은 대조구 2.67ppm, 시험구 0.33ppm으로 대조구에 비해 시험구에서 87.6% 개선효과를 보였다(p<0.05). 자돈의 일당 증체량은 활성탄 급여시 5.88% 증체 결과를 보였고, 일당 사료 섭취량은 큰 차이가 없었으며, 사료 요구율에 있어서는 시험구(1.69)가 대조구(1.82)에 비해 7.14% 높았다. 자돈 배설물의 ammonia 함량은 대조구에 비해 시험구에서 65.0% 감소되어 유의적인 개선 효과를 나타내었다(p<0.05).

가드너의 다중지능이론을 적용한 중1 음악 감상 영역 교수·학습 지도안 연구 : 슈베르트 마왕 중심으로

유선일 국민대학교 교육대학원 2016 국내석사

Today, music education is to develop student’s musical emotions, thinking skills and powers of expression while considering each student’s interest and aptitude, on the basis of a curriculum paradigm that values cultivating creative talented individuals. With Gardener’s MI (Multiple Intelligence) Theory introduced to music class, music teachers can develop every student’s various intelligences and increase their learning preference, further changing the existing music class into a new music learning form. Besides, this theory corresponds to the directivity of the modern education that respect students’ individual characters and pursues a whole-person human character. Gardener insisted that it is necessary to apply a new teaching & learning process considering each student’s interest and aptitude, not a standardized learning process on the premise that learners have the same intelligent competences in the existing music education. Thus, this study intended to propose a new music teaching & learning guidance with Gardener’s MI Theory actively applied to the music appreciation domain of the 2009 Revised Curriculum. That is, By breaking away from the existing teaching & learning methods used in the music appreciation domain, which has been limited to utilizing learners’ single intelligence, this study focused on devising a new teaching & learning method that can utilize learners’ various intelligences. As research subjects, this study selected 7th graders in middle school, and proposed a new teaching & learning method that focuses on developing student’s intelligence more efficiently so that they can utilize their various potential intelligences while appreciating music. Chapter Ⅰ describes the necessity, purpose, range, method and limitations of this study. Chapter Ⅱ examines the background and definition of Multiple Intelligence Theory verified by Gardener as well as the criteria of this theory, the characteristics of each intelligence and implications. Chapter Ⅲ examines the purpose of the music appreciation domain according to the 2009 Revised Curriculum, while investigating appreciation domain activities for each grade in middle school and teaching & learning models focusing on the appreciation domain. Chapter Ⅳ proposes a 3 session-composed teaching & learning guidance for the music appreciation domain, focusing on not theories but activities, in order to develop students’ various intelligences and increase their learning preferences. This study intends to help students develop their various intelligences through music appreciation class and provide them with a chance to recognize and diagnose their own competences. The ultimate purpose of this study is to help students properly understand their potential intelligences and improve their ability of introspection on their competences.

나노 영가철을 이용한 국내 지하수내 질산성질소(NO3--N) 소거 활용성 조사

유선일 전주대학교 일반대학원 2017 국내석사

As a result of the survey on major domestic water pollutants in the recent five years, the average of total samples exceeding the guideline was 5.2%, among which NO3--N(Nitrate-Nitrogen) was 22.1%. The most commonly used removal method for the NO3--N was ion exchange resin so far. The research trend of the nZVI(nano-Zero Valent Iron) was conducted through keyword search during the last 10 years. The number of foreign documents was 1,410 and showed an increasing trend in every year. However, there were 33 domestic documents and difficult to find the increasing tendency. Typically, the nZVI is synthesisd through the consequence processes of mixing step, separation step, cleaning step, and drying step. However, the nZVI is so quickly oxidative, that corrosion and coagulation are happened together. Recently, additional methods such as surface modification, immobilization, dual solvent, and others have been applied to synthesis of the nZVI. In this study, the ability of nZVI prepared without washing process was compared with nZVI prepared by clean up process, including the GT-nZVI(Green Tea-nZVI) synthesized utilizing green tea. The NO3--N concentration was measured by using spectrophotometric method and the removal efficiency of NO3--N was ranged between 16% and 79%, depending on the experimental methods. The nZVI was used to remove heavy metals and ionic pollutants, especially NO3--N removal. Research has also shown that experiments involving the removal of NO3--N accounted for a large proportion. From this point of view, the nZVI will be expected to us as one of the practical ways in the future for removal of NO3--N rather than other pollutants. The ability of the nZVI to remove contaminants, synthesis and removal mechanisms of the literature are suggested. The comparison studies with existing methods were investigated for removing NO3--N from the ground water. As a result, the bio-degradable polymer of the surface modification of the nZVI was found to be the most practical method in the field. It is expected that surface deformation studies and trials for testing practical use of the nZVI will be worthy to pursue further. Keywords: nZVI, Green Tea, Nitrate-Nitrogen, Polymer, Surface modific- ation, mechanism, ground water

수용자의 자기감시 정도에 따른 기업공익광고의 효과에 관한 연구

유선경 전남대학교 대학원 2006 국내석사

In Korean society that emphasizes public agreement and virtue, social responsibility and functions of corporations are main standards to evaluate corporations and are used as central themes of corporate advertising. Also, as they influence decision of customers for purchase, they are highly valuable as a strategy of differentiation. However, customers' response to and discussion about insensible social contribution of corporations and public advertising are not positive. They are not recognized as satisfactory by the public and do not influence purchase greatly because organized promotion and efficient strategies are not prepared. So, it might bring negative effect to management of corporations. Therefore, this study is to prepare proper target strategies by focusing on understanding audiences and specification to meet changing media environment in order to improve effects of corporate public service advertising closely facing the public. Specifically, this study is to examine that public service advertising designed to promote public goodness and mutual harmony might show different responses according to personal properties through personal characteristics such as self-monitoring to control social behaviors. It is suggested that self-monitoring is valuable as a variable to explain how korean cultural characteristics explained by mutual relationships and agreement-oriented environment work on the effects of public service advertising. For the purpose, this study set the following questions : <Question 1> What relations does level of self-monitoring and public service advertising attitudes (advertising attitude and corporate image attitude) have? <Question 2> What relations does level of self-monitoring and intention to purchase products of public service advertising? To solve the problems, this study conducted pre-test, followed by manipulative test of imaginary advertising, control of existing experiences and attitude. The subjects of this analysis were classified by two with a use of self-monitoring scale, and then t-test and regression analysis were mainly used. To sum up the results of the analysis, first, public service advertising showed difference in advertising attitudes according to self-monitoring level. The group with higher self-monitoring level showed such attitudes as preference and sympathy to advertising. It indicates that they have more attentions to social information than those of lower self-monitoring level. Second, this study found that corporate image attitudes of public service advertising were different according to self-monitoring level. The group with higher self-monitoring had higher corporate image attitudes for which corporate ability and social public good were evaluated because their standards to evaluate corporate images depend on external images while standards of lower self-monitoring level groups depend on properties relating to products. Third, purchase intention was different according to self-monitoring level. Purchase intention of the group with higher self-monitoring level was higher. So the members were sensitive to image-oriented advertising because of the tendency that they wanted to be looked friendly to others by projecting corporate image to themselves. Relatively, as the group with lower self-monitoring level was sensitive to product-oriented advertising, their purchase intention inspired through corporate public advertising was low. Fourth, there was a difference between the two groups in effects of corporate public advertising attitude on purchase intention. As a result of comparing effects of advertising attitudes and corporate images on purchase intention, the group with higher self-monitoring level was more influenced by corporate images for purchase while the group with lower self-monitoring level was more influenced by advertising attitude for purchase rather than corporate image. That is, the former decided to purchase by evaluating corporate image, but the latter decided to purchase through recognition responses such as preference and sympathy to advertising. It indicates that internal character or emotional status of the latter group members tends to have a final influence on purchase, and attitude to advertising that reflects their attitudes and senses of value works the purchase intention directly. Based on such results, this study presents a few suggestions as follows: As it is expected that for corporate public advertising, the group members with higher self-monitoring level show more friendly response to advertising attitude, corporate image evaluation and purchase, if appropriate advertising strategies such as demographical and regional classification relating to self-monitoring level in multi-media generation and its applications for products are used, efficiency of advertising can be improved. For purchase effect through corporate public advertising, the members with higher self-monitoring level should be given some messages that have strong connection with public service image. However, for those with lower self-monitoring level, friendly advertising attitude should be formed or public social goodness of corporations should be connected to quality reliability of products. Rather than short-term performance of corporate public advertising or expectation of unconditional effectiveness from it, such organized approaches can be a foundation for effective corporate management through effective customers and mass relations based on creative and effective communication. 공동의 합의와 선을 중요시하는 한국사회에서 기업의 사회적 책임과 역할은 기업을 평가하는 주요한 잣대가 되고 기업광고의 중심 주제로 쓰이고 있다. 또한 소비자 구매의사과정에 영향을 주어 차별화된 이미지 전략으로 활용 가치가 높아졌다. 그러나 기업의 사회공헌 활동이나 공익광고에 대해 소비자 반응이 긍정적이지 못하다는 논의가 제기되고 있다. 이는 체계적인 홍보 활용과 비효율적인 전략의 문제로 대중의 만족과 제품 구매에 긍정적이지 못할 뿐 아니라 기업 경영에 부정적 영향을 줄 수 있음을 지적하기도 한다. 이 논문은 대중과 대면해 있는 기업공익광고의 효과를 높이고 엇갈린 소비자 반응을 설명하기 위해 수용자 이해와 세분화에 주목하였다. 다변화하고 있는 매체환경에 대응함으로써 적합한 타깃 전략을 수립하는데 도움을 주고자 하였다. 수용자 특성 중 자신의 사회적 행동을 통제 · 관리하려는 자기감시 정도가 공공의 선을 담고 사회적 조화를 추구하는 기업공익광고 효과에 작용할 수 있을 것으로 보았기 때문이다. 또한 공동체주의와 개인주의가 이원화된 현대사회에서 한국적 특성의 상호관계와 합의 지향적 요소를 지닌 개인적 성향이 기업공익광고 효과에 어떻게 작용하는지에 대해 자기감시를 통해 설명할 수 있을 것으로 보았다. 이에 다음과 같은 연구문제를 설정하였다. <연구문제 1> 자기감시 정도와 기업공익광고의 태도(광고태도, 기업이미지 태 도)는 어떠한 관계가 있는가? <연구문제 2> 자기감시 정도와 기업공익광고의 제품 구매의도는 어떠한 관계가 있는가? 연구문제를 해결하기 위해 전남대학교 대학생을 대상으로 사전조사를 통해 가상 광고물에 대한 조작 가능성을 검증하고 기존경험과 태도를 통제한 후 본실험을 실시하였다. 분석에 포함된 피험자는 265명이었으며 자기감시 척도를 이용해 집단을 구분한 후 주로 t-검증과 회귀분석을 활용하였다. 분석 결과, 먼저 자기감시 정도에 따라 기업공익광고의 태도에 차이가 나타났다. 광고에 대한 호감, 공감 등의 태도가 자기감시가 높은 집단이 더 높게 측정되었다. 이는 자기감시가 낮은 집단에 비해 사회적 정보에 높은 관여를 보이고 민감하게 반응한 것이다. 또한 기업 능력 및 사회공익성 등을 평가한 기업이미지 태도가 더 높게 측정되었는데 이는 자기감시가 높은 집단이 기업이미지를 평가하는 기준이 외적 이미지에 있다면 자기감시가 낮은 집단은 제품과 관련된 속성에 있기 때문이다. 다음으로 제품의 구매의도를 측정한 결과, 자기감시가 높은 집단이 더 높게 나타났다. 자기감시가 높은 집단은 공익적 기업이미지를 자신에게 투사함으로써 타인으로부터 호의적인 평가를 받고자 구매를 자신의 적절한 사회행동으로 활용한 것이다. 상대적으로 제품 지향적 광고에 효과적인 자기감시가 낮은 집단은 제품의 속성이나 효율성을 자신의 내적 기준에 따라 판단하는 성향이 강해 기업공익광고에 대해 구매의도가 낮은 것으로 분석되었다. 기업공익광고 태도가 구매에 미치는 영향에 있어서는 집단 간 차이를 보였다. 광고태도와 기업이미지가 구매의도에 미치는 영향을 비교한 결과, 자기감시가 높은 집단은 광고태도보다 기업이미지가 구매에 미치는 영향이 더 크게 나타났고 자기감시가 낮은 집단은 기업이미지보다 광고태도가 구매에 미치는 영향이 더 크게 나타났다. 즉 자기감시가 높은 집단은 일반적으로 기업광고가 그러하듯 기업이미지를 평가함으로써 구매의도를 결정했다면 자기감시가 낮은 집단은 광고에 대한 호감, 공감 등의 인지반응 태도를 통해 구매의도를 결정했다. 자기감시가 낮은 집단은 외부적 상황 단서보다는 제품의 내적 속성을 판단해 구매에 이르기 때문에 사회공헌적 기업이미지 제품을 자기표현 수단으로 활용하지 않는다. 따라서 자신의 태도와 가치관을 반영한 광고에 대한 인지반응 태도가 보다 직접적으로 작용하여 구매의도를 나타낸 것이다. 이러한 연구결과를 통해 몇 가지 시사점을 찾아 볼 수 있다. 기업공익광고는 자기감시가 높은 이들에게 광고태도나 기업이미지 평가 그리고 구매효과에 있어서 더 호의적인 반응이 예측됨에 따라 자기감시 정도와 접목되는 인구통계학적, 지역적 분류 내지는 상품군에 적용시켜 각각에 맞는 타깃 전략에 이용한다면 다매체시대 광고의 효율성을 높일 수 있을 것이다. 또한 자기감시가 낮은 이들을 대상으로 할 경우 기업의 사회책임 연상 뿐 아니라 제품 생산능력 연상 효과를 병행하는 것이 기업공익광고의 효율성을 높일 수 있을 것이다. 기업공익광고를 통해 구매효과를 높이기 위해서 세분화된 전략이 요구된다. 자기감시가 높은 이들은 장기적인 계획을 통해 기업이미지와 강한 연상을 일으킬 수 있는 메시지를 강조함으로써 공익광고 기업의 제품을 통해 자신의 사회적 이미지를 표현할 수 있음을 소구해야한다. 자기감시가 낮은 이들에게는 공익광고에 대해 호감과 공감을 불러올 수 있는 광고제작을 활용해 호의적 광고태도를 형성하거나 기업의 사회공익성을 제품의 질적 신뢰성으로 연결시켜 구매에 영향을 줄 수 있도록 해야 할 것이다.

사회경제적 지위와 학업성취의 관계 : 문화자본과 교사기대 지각의 매개효과 분석

유선 창원대학교 대학원 2009 국내박사

The purpose of this study was to examine the relationships between students' academic achievement and their socio-economic status, cultural capital, and perceiving teachers' expectancy. The research questions of this study were as follows: (a) Is there any difference in students' academic achievement according to socio-economic status?; (b) Is there any difference in cultural capital according to socio-economic status?; (c) Is there any difference in students' perception of teachers' expectancy according to the socio-economic status?; and (d) Do the cultual capital and perceiving teachers' expectancy mediate between socio-economic status and students' academic achievement? If it is mediated, then what is the structure? The participants in this study were four hundred and thirty students; two hundred and two were male and the remainder were female. All of them were third graders in middle schools located in Changwon, KyungSangNam-Do. All latent variables are measured by three to four measured variables. For socio-economic status, there are three variables: parents' educational backgrounds, fathers' occupations, and monthly income. Cultual capital is measured by three variables: objectified cultural capital and the embodied cultural capital of students and their parents. Students' perception of teachers' expectancy toward them is measured by three variables: teachers' expectancy on students' academic achievement, friendship, and social success. The collected data were analysed by Factor analysis, Reliability analysis, One-way ANOVA and Structural equation modeling. The results were summarized as follows. First, there was meaningful difference in all the measured variables of cultural capital, perceiving teachers' expectancy and students' academic achievement according to parents' educational background, fathers' occupation and monthly income(SES). As the socio-economic status was higher, students had higher cultural capital. Students perceived their teachers' expectancy more positively and achieved higher academic performance. In particular, the fathers' occupations had the strongest relationships with these variables. Second, Research model Ⅱ is better than Research model Ⅰ. It was proved that Research model Ⅱ is more suitable for explaining the process in which socio-economic status influences students' academic achievement. Third, modification model is chosen as the final model after excluding the path of cultural capital to students' academic achievement. The result of analyzing the effects has found that socio-economic status has a direct effect on cultural capital, students' perceptions of their teachers' expectancy and their academic achievement. In addition, students' perceptions of teachers' expectancy has a direct effect on their academic achievement. The indirect effect of cultural capital mediated by perceiving teachers' expectancy on academic achievement was stronger than the direct effect. Moreover, the direct effect was not statistically significant. This result indicates that students' perceptions of teachers' expectancy is strongly influenced by cultural capital. The more students perceive their teachers' expectancy, the higher their academic achievements are. 이 연구는 사회경제적 지위에 따라 문화자본, 교사기대 지각, 학업성취에 어떤 차이가 존재하는지를 탐색하고, 사회경제적 지위, 문화자본 및 교사기대 지각이 중학생의 학업성취에 이르는 구조적 관계를 밝히기 위해 수행되었다. 이를 위해 다음과 같은 연구문제를 설정하였다. ① 부모의 사회경제적 지위에 따라 학업성취는 차이가 있는가 ? ② 부모의 사회경제적 지위에 따라 문화자본은 차이가 있는가 ? ③ 부모의 사회경제적 지위에 따라 학생에 대한 교사기대 지각은 차이가 있는가 ? ④ 문화자본과 교사기대 지각은 부모의 사회경제적 지위에 따른 학업성취의 차이를 매개하는가 ? 매개한다면 그 구조는 어떠한가 ? 이상과 같은 연구문제를 검증하기 위하여 창원시에 재학중인 중학교 3학년 430명(남학생 202명, 여학생 228명)을 표집하였다. 이 연구의 잠재변수는 3~4개의 측정변수를 통해 측정되었는데, 사회경제적 지위의 경우 부·모학력, 부직업, 월평균 소득이었으며, 문화자본은 객관화된 문화자본, 부모 및 학생의 체화된 문화자본이었고, 교사기대 지각은 학업성취에 대한 기대 지각, 교우관계에 대한 기대 지각, 사회적 성공에 대한 기대 지각으로 구성되었다. 수집된 자료는 요인분석, 상관분석, 일원배치분산분석(One-Way ANOVA), 구조방정식모형분석(SEM)을 실시하였다. 이 연구에서의 결과는 다음과 같이 요약된다. 첫째, 문화자본의 측정변수인 객관화된 문화자본과 부모 및 학생의 체화된 문화자본과 교사기대 지각의 측정변수인 학업성취 기대, 교우관계 기대, 사회적 성공 기대, 학업성취(진단평가 총점)는 모두 부모의 학력, 부의 직업, 가정의 월평균 소득을 기준으로 한 집단 간에 유의미한 차이가 있었다. 즉 사회경제적 지위가 높을수록 문화자본을 많이 보유하였고, 교사기대에 대해 더 긍정적으로 지각하였으며 학업성취도 역시 높았다. 특히 부모학력은 대학교 졸업 이상, 부직업은 신 중간계급 이상, 월평균 소득은 300만원 이상, 부모직업과 부직업, 월평균 소득을 합한 사회경제적 지위(SES)는 중상류층 이상의 집단이 각각 평균보다 높은 수치를 나타냈다. 그리고 문화자본, 교사기대 지각, 학업성취는 부모학력과 가정의 월평균 소득보다는 부의 직업에 의해 더 큰 영향을 받고 있었다. 둘째, 사회경제적 지위가 문화자본을 매개로 학업성취에 이르는 경로와 사회경제적 지위가 교사기대 지각을 매개로 학업성취에 이르는 경로를 각각 분석한 연구모형 Ⅰ보다 문화자본이 교사기대 지각에 미치는 영향을 추가하여 사회경제적 지위, 문화자본, 교사기대 지각, 학업성취 간의 관계를 살펴본 연구모형 Ⅱ의 적합도 지수가 더 높았다. 셋째, 연구모형 Ⅱ에서 문화자본이 학업성취에 이르는 경로를 제외한 수정모형이 최종모형으로 선택되었는데, 이 모형의 잠재변수간 효과분해 결과를 보면, 사회경제적 지위는 문화자본, 교사기대 지각, 학업성취에, 교사기대 지각은 학업성취에 직접효과를 나타냈다. 반면 문화자본은 교사기대 지각을 매개로 학업성취에 간접적인 영향을 나타냈다. 이는 교사기대 지각이 사회경제적 지위에 따라 차등적으로 분배된 문화자본의 영향을 받고 있으며, 교사로부터 긍정적 기대를 받은 학생들은 학업성취가 높다는 것을 의미한다.

청소년의 애착과 도움 추구태도가 학교 적응에 미치는 영향

유선 경남대학교 교육대학원 2004 국내석사