• 한국과학교육학회지
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• 제31권1호
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• pp.14-31
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• 2011

본 연구에서는 예비과학교사들을 대상으로 하여 이들이 과학교사가 되고자 하는 동기는 무엇이며, 이러한 동기는 성장과정에서 어떻게 형성되었는지, 그리고 이들이 가지는 미래 자신에 대한 과학교사상에는 어떤 특성이 나타나는지 알아보았다. 이들의 과학교사가 되고자 하는 동기와 동기 형성과정은 경험에 기반을 두어 형성된 것이기 때문에 개인적인 측면이 많았지만, 다음과 같은 공통적인 특성을 보였다. 첫째 예비과학교사들의 성장과정을 살펴보았을 때, 교육에 대한 흥미와 과학에 대한 흥미는 서로 별개로 존재하다가 나중에 과학교사에 대한 흥미로 두 관심이 모아졌으며, 과학교사가 자신의 흥미와 적성이 꼭 맞음을 발견했을 때, 그들은 과학교사에 대한 자신의 내적 동기를 발전시킬 수 있었다. 둘째, 중 고등학교에서의 보조교사 경험, 수업관찰, 초등학생 대상 과학교육 프로젝트의 참여, 과학 캠프 교사 등 교육현장을 직접보고, 가르쳐본 경험이 자신의 적성을 확인하는 중요한 계기가 되었다. 셋째, 교육에 대한 적성을 확인할 수 있는 기회는 사적인 것보다는 공적인 기회가 많았으며, 이러한 기회들은 자신의 미래 교사상을 형성하고 교사로서의 준비를 하는데 있어 생생한 경험이 되었고, 과학교사가 되고자 하는 내적 동기를 강화시켜, 자신의 진로를 주도적으로 선택하는데 있어 기반이 되었다. 넷째, 미래 자신에 대한 과학교사상에는 일반적인 교사로서의 이미지가 더 큰 사람이 있는 반면, 과학을 가르치는데 대한 이미지가 더 큰 사람이 있었다. 이와 같은 교사상은 자신의 교사가 되고자 하는 동기 및 동기 형성과정과 긴밀하게 연관되어 있었다.

• 한국문헌정보학회지
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• 제39권2호
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• pp.321-346
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• 2005

이 연구는 초등학교 5학년 학생을 대상으로 발달적 독서치료를 실시하여 자아실현에 미치는 영향을 실험한 사례 연구이다. 실험의 대상은 경기도의 C초등학교 5학년 학생 20명(실험집단 10명, 통제집단 10명)이며, 총 12회기를 6주 동안 실시하였다. 그 결과 실험집단은 통제집단에 비하여 사후 검사에서 내부지향성, 자아실현성, 감수성, 자발성, 자기긍정성. 자기수용성척도에서 유의미한 효과가 나타났다. 그리고 3주 후의 지속성 검사에 있어서도 그 효과는 지속되고 있는 것으로 나타났다. 그러므로 발달적 독서치료는 초등학생의 자아에 긍정적인 영향을 주어서 앞으로의 삶에 있어서 바람직한 인간상을 형성하는데 일조 할 수 있다고 판단된다.

• Steel and Composite Structures
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• 제20권6호
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• pp.1205-1219
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• 2016

This paper presents a new type of pre-pressed spring self-centering energy dissipation (PS-SCED) bracing system that combines friction mechanisms between the inner and outer tube members to provide the energy dissipation with the pre-pressed combination disc springs installed on both ends of the brace to provide the self-centering capability. The mechanics and the equations governing the design and hysteretic responses of the bracing system are outlined, and a series of validation tests of components comprising the self-centering mechanism of combination disc springs, the friction energy dissipation mechanism, and a large scale PS-SCED bracing specimen were conducted due to the low cyclic reversed loadings. Experimental results demonstrate that the proposed bracing system performs as predicted by the equations governing its mechanical behaviors, which exhibits a stable and repeatable flag-shaped hysteretic response with excellent self-centering capability and appreciable energy dissipation, and large ultimate bearing and deformation capacities. Results also show that almost no residual deformation occurs when the friction force is less than the initial pre-pressed force of disc springs.

• 가족자원경영과 정책
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• 제16권2호
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• pp.19-39
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• 2012

Many students who attend university are worried about their future employment and academic achievement. Self-leadership is the ability to deal wisely with employment matters and to recognize the employment strategies of students who display self-leadership qualities. For this purpose, 320 questionnaires were distributed to students attending universities in Seoul. The 304 collected questionnaires were used as data for the final analysis. First, the university students' average self-leadership rate was 3.73, and their average employment rate was 3.24. In terms of self-leadership by subordinate domains, the most common strategy was to introduce "natural compensation activities", and the least common strategy was to focus on "inner compensation". For the employment strategy, "academic credit" was the best managed, and "active behavior" was the least well managed. Second, in terms of the differences in self-leadership due to social demographic variables, the self-leadership levels showed significant differences, according to their credits in general. Furthermore, they showed significant differences depending on gender and the leadership experience among the subordinate variables. Moreover, the university students' employment strategies showed significant differences according to gender, leadership experience and leadership education. Third, in terms of the difference between self-leadership and employment strategies due to psychological variables, self-efficacy and university-life satisfaction levels made significant differences in terms of self-leadership. Fourth, the group with high self-leadership levels also had highly developed employment strategies, compared to the group with low self-leadership levels. Fifth, after analyzing the social demographic variables, the psychological variables and the influence of self-leadership, it appears that the explanation level increased at each step. This study demonstrates that experiencing many opportunities that promote self-leadership during university causes students to worry about their future careers and prohibits them from developing into independent, responsible adults who can accomplish their goals.

• 인간행동과 음악연구
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• 제16권2호
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• pp.1-25
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• 2019

본 연구에서는 자원지향 노래심리치료를 통해 위기청소년이 경험하는 심리적 자원을 알아보고자 자원지향 노래심리치료를 구성하여, 조건부 기소유예 및 보호관찰 처분을 받은 청소년 25명을 대상으로 총 8회기 프로그램을 실행하였다. 연구자는 프로그램 종결 후 10명의 참여자를 대상으로 심층 인터뷰를 진행하여 자원 형성에 대한 질적 자료를 수집하였으며, 질적 내용분석 방법을 통해 분석하였다. 연구결과 자원지향 노래심리치료에서 참여자가 경험한 심리적 자원은 총 128개의 개념으로 나타났고, 9개의 심리적 자원 유형이 도출되었다. 9개의 심리적 자원은 '소망/원함', '도전', '인내', '성취감', '유능감', '자부심', '참자기와의 만남', '용기', '내적평가소재'로 나타났다. 이러한 연구결과는 자원지향 노래심리치료 과정을 통해 위기청소년이 경험한 다양한 심리적 자원을 규명하였다는 데 의의가 있다. 추후 연구에서는 자원지향 노래심리치료를 통해 경험하는 참여자의 심리적 변화 과정 및 치료적 역동을 심도있게 탐색할 것을 제안하였다.

• 한국환경과학회지
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• 제29권8호
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• pp.801-808
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• 2020

In this study, an effective fluorescence pH sensor based on conjugated polyelectrolyte micelles (CPMs) was devised for detecting extremely acidic conditions. An amphiphilic coumarin derivative (CC12-N), a building block, was prepared, into which an ionizable amino group, aryl amine, was incorporated as a potential hydrophilic moiety. This monomer displays self-assembled micelle formation in extremely acidic pH ranges, giving a hydrophobic π-extended conjugated system at the inner part and hydrophilic functionality at the periphery, resulting in efficient fluorescence intensity enhancement. This new micelle-based fluorescence provides an efficient sensing platform for detecting very low pH values in the presence of competing substances.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2001년도 춘계학술대회논문집
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• pp.559-564
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• 2001

In order to apply into a compact and reliable centrifugal blood pump, this paper introduces a self-bearing motor in which a rotor is rotated without contact. The rotor is actively controlled in only radial directions, while the axial and tilting motions are passively stable owing to the disk-shape structure of the rotor. A prototype was made in outer-rotor type that is far better in the compactness than inner-rotor type. The prototype could be driven up to 8000 rpm with the rotor vibration under 0.12mm. The maximum cardiac output and pressure head were 9 L/min and over 200 mmHg, respectively. These experimental results show that the proposed self-bearing motor has sufficient performance for application to a real blood pump.

• 가족자원경영과 정책
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• 제7권1호
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• pp.61-76
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• 2003

Data for this study were collected from 293 cases including the middle school students and their parents(151), the high school students and their parents(142). The major findings of this study were as follows: First, the level of inner control and self identity of parents is higher than that of the adolescents. Second, the level of family cohesion and adaptability of parents is higher than that of the adolescents. Third, on the satisfaction with family resource, there is no significant difference between adolescents and their parents. Finally, influential variables on satisfaction with family resources of adolescent and their parents are self identity and family cohesion.

• 한국공작기계학회:학술대회논문집
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• 한국공작기계학회 2002년도 추계학술대회 논문집
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• pp.80-84
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• 2002

In this study, researchers developed the est algorithm for artificial defects in the semic packages and performed to it by pattern recogn technology. For this purpose, this algorithm was I that researcher made software with matlab. The so consists of some procedures including ultrasonic acquistion, equalization filtering, self-organizing backpropagation neural network. self-organizing ma backpropagation neural network are belong to metho neural networks. And the pattern recognition tech has applied to classify three kinds of detective pa semiconductor packages. that is, crack, delaminat normal. According to the results, it was found estimative algorithm was provided the recognition r 75.7%( for crack) and 83.4%( for delamination) 87.2 % ( for normal).

• 한국공작기계학회:학술대회논문집
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• 한국공작기계학회 2005년도 춘계학술대회 논문집
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• pp.91-96
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• 2005

In this study, researchers developed the estimative algorithm for artificial defects in semiconductor packages and performed it by pattern recognition technology. For this purpose, the estimative algorithm was included that researchers made software with MATLAB. The software consists of some procedures including ultrasonic image acquisition, equalization filtering, Self-Organizing Map and Backpropagation Neural Network. Self-Organizing Map and Backpropagation Neural Network are belong to methods of Neural Networks. And the pattern recognition technology has applied to classify three kinds of detective patterns in semiconductor packages: Crack, Delamination and Normal. According to the results, we were confirmed that estimative algorithm was provided the recognition rates of $75.7\%$ (for Crack) and $83_4\%$ (for Delamination) and $87.2\%$ (for Normal).