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Fe-3 % Si 단결정의 (001) 과 (111) 면에 대한 Nd:YAG 레이저 펄스 조사와 기계적 압입에 의한 변형기구 비교
신정철,김도훈,신규식 대한금속재료학회(대한금속학회) 1988 대한금속·재료학회지 Vol.26 No.11
In order to compare the slip deformation modes of Fe-3%Si singe crystals created by mechanical indentation and Nd : YAG laser pulse, they were indented with the Rockwell diamond brale and irradiated with the Nd : YAG laser pulse. The slip traces generated on (111) and (001) surface planes were analysed by trace analysis method. The microstructures in both deformed specimens were observed by Nomarski microscope and TEM. Mechanical indentation on (111) and (001) surface planes resulted that the slips had taken place on {110} and {112} planes along $lt;111$gt; direction. Meanwhile laser irradiation showed that the slips had also taken place on {123} planes in addition to {110} and {112} planes due to thermal effect. It seems that a strain rate had larger effect on the spacing of slip bands in Fe-3% Si single crystal compared with temperature increase. Dislocation density was higher in mechanically indented specimen and they were tangled each other. Mean while dislocation density was lower in laser irradiated specimen and the were aligned along the characteristic orientation.
신정철,김승정,김은영,임희진 서울대학교 교육연구소 2018 Asia Pacific Education Review Vol.19 No.2
This study investigates the relationships between students’ satisfaction with their doctoral program and motivational and socio-environmental factors. In this study, doctoral students’ satisfaction with their program is measured by their learning experiences such as quality of theoretical knowledge, research methodology, and competency. The survey data for this study were collected at a comprehensive and research-focused university in South Korea. Findings indicate that socialization and motivational factors are associated with doctoral students’ satisfaction with their program. Additionally, this study suggests that academic advisors should pay more attention to the changing job markets for PhD students because students’ satisfaction with their doctoral program is strongly related to their future job prospects.
Expatriate academics and managing diversity: a Korean host university’s perspective
신정철,Douglas R. Gress 서울대학교 교육연구소 2018 Asia Pacific Education Review Vol.19 No.2
Interest in the careers of expatriate academics has rapidly grown in recent years. The specified organizational and cultural norms to which a host-university expects expatriate academics to conform, however, have been left largely unexplored. A conjoined question, too, is whether or not the university is successfully managing for diversity. The present research therefore examines input from six senior managers at a leading Korean university, finding that it has its own expectations for expatriate academics although these expectations are not formally codified. The case university does not expect outstanding research from them because of acknowledged limitations in the research environment. Managers are satisfied with the teaching of expatriate academics with caveats, but their participation in service activities is a perceived challenge. This, language deficiency, and absences over paid term breaks diminish ‘we-ness’ and positive perceptions of expatriate faculty. Change, however, may come in time. For now, some colleges and departments may be defending the status quo rather than pursuing true ‘Leadership Practices for Diversity,’ but there are nonetheless positive developments in some academic units; expatriate academics are making their way up the ranks, and university level initiatives suggest that more change could be around the corner.
Challenges for doctoral education in East Asia: a global and comparative perspective
신정철,Postiglione Gerard A.,K. C. Ho 서울대학교 교육연구소 2018 Asia Pacific Education Review Vol.19 No.2
East Asian higher education is experiencing a massive growth in doctoral education with the world-class university initiatives. The growth of doctoral education in the region is remarkable especially as seen in the Chinese system which became positioned as the world’s second largest doctoral degree-granting system. Yet, there are growing issues in doctoral education related to system reform, graduate employment in a changing job market, program quality, research funding, and even the identity of doctoral education (professional training vs. training next generation scholars). These are globally emerging issues for policy makers and higher education scholars. This article will encourage academic discussions on the challenges and global trends in doctoral education from the comparative perspective of Anglo-American and European systems.
신정철,서경석 한국경영정보학회 2014 한국경영정보학회 학술대회논문집 Vol.2014 No.1
소프트웨어 개발 환경이 점차 대형화, 복잡화 되고 컴퓨터 활용기술이 일반화됨에 따라 시간과 공간 의 제약 없이 요구사항이 체계적인 관리 및 고도화되고 있다. 따라서 요구사항에 대한 참여자와 이해 관계자들 간의 공통적인 이해와 체계적인 관리가 전체 요구공학 프로세스 관점에서 매우 중요하다. 본 연구의 목적은 요구 공학적 측면의 요구사항 개발·관리에 대한 정보시스템 감리 가이드에서의 시 스템 개발 사업 영역 및 프로젝트 관리 및 품질보증 영역의 관련 점검 항목들을 개선·보완하여 감리 에 적용함으로써 효율적인 요구사항 관리를 통한 성공적인 SI 프로젝트 관리가 이루어 질 수 있도록 한다. 구체적으로 국·내외 요구공학 관련 문헌과 표준 그리고 선행연구를 기반으로 요구공학 개념에 대한 정확한 이해와 요구사항 관리 측면에서의 소프트웨어 요구사항 추출, 분석, 명세, 검증, 변경 등 과 같은 요구사항에 대한 전반적인 관리 및 개발 방법론과 관련 기술들에 대한 내용을 근거로 정보시 스템 감리 점검 가이드의 점검 항목에 대한 개선 방안을 도출 하고자 한다. 이를 통해 효율적인 공공 SI 프로젝트 관리가 될 수 있도록 노력하며, 감리 결과에 대한 객관적인 신뢰도 향상과 국가 정보화 사업의 질적 향상이 이루어 질 수 있도록 제안 하고자 한다.