• 제목/요약/키워드: MIS 4

검색결과 421건 처리시간 0.032초

황해 중동부 경기만의 후기 제4기 순차층서 연구 (Late Quaternary Sequence Stratigraphy in Kyeonggi Bay, Mid-eastern Yellow Sea)

  • 권이균
    • 한국지구과학회지
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    • 제33권3호
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    • pp.242-258
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    • 2012
  • 황해 경기만은 제4기에 반복된 해침과 해퇴로 4개의 해침-해퇴 퇴적체(DS-1, DS-2, DS-3, DS-4)를 형성하였다. 본 연구는 황해 경기만 퇴적체의 형성을 6개 퇴적단계로 나누어 설명한다. A 단계는 MIS-6 저해수면 시기로서 큰 규모의 해수면 하강으로 인해 대부분의 지역이 대기에 노출되고 광범위한 하도 침식 및 풍화작용의 영향을 받았다. 이어지는 B 단계는 MIS-5e 까지 빠른 해수면 상승과정에서 MIS-5 시퀀스의 하부 해침퇴적체가 형성되었고, 다음에 이어지는 MIS-5d부터 MIS-4 저해수면 시기까지의 C 단계에서는 MIS-5 시퀀스의 상부인 해퇴퇴적체가 만들어졌다. 다음의 D 단계는 MIS-4 저해수면 시기부터 MIS-3c 고해수면 시기까지로 하도 침식 및 하도 충전 구조로 이루어진 MIS-3 해침 퇴적체가 형성되었다. 다음의 E 단계에서는 LGM 시기까지 계속적인 해수면 하강이 있었고 외해쪽에서는 천해 기원의 MIS-3 해퇴퇴적체가 만들어진 반면에, 내륙쪽에서는 노출된 환경에서 하도 충전 퇴적체나 범람원 퇴적체가 형성되었다. 마지막 단계인 F 단계는 황해 전체적으로 홀로세 해침이 발생하였고, 이 시기에 외해쪽에서는 대륙붕 사질 퇴적체와 조석사주 퇴적체가 형성되어 고해수면 시기인 현재까지 퇴적이 일어나고 있다.

Ni/CNT/SiO2 구조의 4H-SiC MIS 캐패시터의 전기적 특성 (Electrical characteristics of 4H-SiC MIS Capacitors With Ni/CNT/SiO2 Structure)

  • 이태섭;구상모
    • 전기전자학회논문지
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    • 제18권4호
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    • pp.620-624
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    • 2014
  • 본 연구에서는, Ni/CNT/$SiO_2$ 구조의 4H-SiC MIS 캐패시터를 제작하고 전기적 특성을 조사하였다. 이를 통하여 4H-SiC MIS 소자에서 탄소나노튜브의 역할을 분석하고자 하였다. 탄소나노튜브는 이소프로필알코올과 혼합하여 $SiO_2$ 표면에 분산하였다. 소자의 전기적 특성 분석을 위하여 300-500K의 온도 범위에서 소자의 정전용량-전압 특성을 측정하였다. 밴드 평탄화 전압은 양의 방향으로 shift되었다. 정전용량-전압 그래프로부터 계면 포획 전하 밀도 및 산화막 포획 전하 밀도가 유도되었다. 산화막의 상태는 4H-SiC MIS 구조의 계면에서 전하 반송자 또는 결함 상태와 관련된다. 온도가 증가함에 따라 밴드 평탄화 전압은 음의 방향으로 shift되는 결과를 얻었다. 실험 결과로부터, Ni과 $SiO_2$ 계면에 탄소나노튜브를 첨가함에 따라 4H-SiC MIS 캐패시터의 게이트 특성을 조절 가능할 것으로 판단된다.

호미곶과 구룡포지역 해안단구와 신기지구조운동 (Marine Terraces and Quaternary Faults in the Homigot and the Guryongpo, SE Korea)

  • 최성자
    • 암석학회지
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    • 제25권3호
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    • pp.231-240
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    • 2016
  • 남동해안의 호미곶과 구룡포 인근지역의 해안단구에는 3조의 제4기 단층이 인지 되며, 이중 2조는 4단구와 2단구의 평탄면을 자르고 있다. 호미곶 남쪽 하정리의 하정단층은 4단구를, 호미곶 구만리의 구만단층은 2단구를 자르고 있다. 하정단층은 역단층운동을 하였으며 주향과 경사는 하부에서 $N55^{\circ}W/45^{\circ}NE$, 상부에서 $N45^{\circ}W/40^{\circ}N$E로 수직 변위는 약 180 cm이다. 하정단층은 MIS 7~MIS 5c 동안 단층운동 시 형성된 4조 붕적퇴적층이 발달하고 있어, 4회의 단층 운동이 있었음을 알 수 있다. 호미곶 구만리에 위치하고 있는 구만단층은 3조의 역단층이 관찰되며 단층의 주향과 경사는 $N80^{\circ}E{\sim}N70^{\circ}W/25^{\circ}-35^{\circ}SE{\sim}30^{\circ}SW$로 수직이동거리는 9 cm~18 cm이다. 구만단층은 부정합면 직상위의 최하위 퇴적층만 이동시켰으며, MIS 5a의 80 ka 이후, MIS 4의 71 ka 이전 기간 동안 1회 운동하였다. 이 하정단층과 구만단층의 자세를 고려해 볼 때, 남동해안에는 후기 플라이스토세 기간동안 동북동-서남서 압축력과 남북 압축력이 작용한 것으로 생각된다. 하정리의 4단구 퇴적층과 구만리의 2단구 OSL연대 결과, 대보 지괴의 4단구는 MIS 7, 2단구는 MIS 5a임을 재검증하였다.

모델링 기반의 경영정보학 교육 방안 (A Modeling Based MIS Education)

  • 강신철
    • Journal of Information Technology Applications and Management
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    • 제19권4호
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    • pp.153-169
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    • 2012
  • In the rapidly changing field of Management Information Systems, the definition and educational programs must be continually reevaluated and revised. A study was conducted to find a way to which the modeling principle is applied for redefining the identity of Management Information Systems as an independent academic field and to develop a plausible MIS curriculum based on the modeling principle. Previous researches on the MIS frameworks, knowledge and technology requirements for IS professionals, and standard MIS curriculums were reviewed thoroughly. For this study, the Kantian cognitive model was adopted as a basis of modeling principle. The result shows that modeling ability has been the core competence of IS people in the field of MIS. The applicability of a modeling principle is also verified in establishing the identity of MIS and developing a normative MIS curriculum. For the MIS field to thrive as an independent academic field and research discipline, it is believed to be imperative for the discipline to have a unique educational goals distinguished from both other management areas, and sub-fields of computer science.

국내 4년제 대학의 MIS학과 교과과정의 운영실태에 관한 연구 (A Study on the MIS Curriculum in Domestic Four-year Universities)

  • 김영문
    • Asia pacific journal of information systems
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    • 제4권1호
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    • pp.47-73
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    • 1994
  • This paper investigated the MIS curriculum of fifteen four-year universities in South Korea. The data for analyses was collected from the university catalogues, questionnaire, and telephone interviews. Based on the data collected, this paper reported the current status of domestic MIS departments and analyzd the curriculum using the conceptual framework. The research results were discussed in terms of three issues : (1) the operations of MIS curriculum, (2) the sequences of selected MIS courses, (3) the course titles. This papers finally discussed the limitations of the current study and the future research directions.

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Anti-Mullerian Hormone Serum Concentrations in Prenatal and Postnatal Period in Murine

  • Kim, Dae Young
    • 한국수정란이식학회지
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    • 제28권2호
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    • pp.149-155
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    • 2013
  • Mullerian inhibiting substance (MIS) is a member of the TGF-${\beta}$ (transforming growth factor-${\beta}$) family whose members play key roles in development, suppression of tumour growth, and feedback control of the pituitary-gonadal hormone axis. MIS is expressed in a highly tissue-specific manner in which it is restricted to male Sertoli cells and female granulose cells. The serum levels of MIS in prenatal and postnatal ICR mice were measured using the enzyme-linked immuno-solvent assay (ELISA) using the MIS/AMH antibody. Mice were grouped by age: the significant periods were at the onset of development. During sex organ differentiation, no remarkable difference between female and male foetus MIS serum levels (both<0.1 ng/ml) was observed. However, MIS serum levels in pregnant mice markedly changed (4.5~12.2 ng/ml). After birth, postnatal female and male mice serum MIS levels changed considerably (male: <0.1~138.5 ng/ml, female: 5.3~103.4 ng/ml), and the changing phase were diametrically opposed (male: decreasing, female: fluctuating). These findings suggest that MIS may have strong associations with not only develop-ment but also puberty. For further studies, establishing the standard MIS serum levels is of importance. Our study provides the basic information for the study of MIS interactions with reproductive organ disability, cancer, and the effect of other hormone or menopause. We hypothesise that if MIS is regularly injected into middle-age women, meno-pause will be delayed. We detected that serum MIS concentration curves change with age. The changing phase is different between males and females, and this difference is significant after birth. Moreover, MIS mRNA is expressed during the developmental period (prenatal) and also in the postnatal period. This finding indicates that MIS may play a significant role in the developmental stage and in growth after birth.

학부 경영정보학과와 인접학문 간의 교육만족도 비교 (Comparison of Students' Satisfaction among Related Disciplines of Undergraduate MIS Majors)

  • 소정은;김태성
    • Journal of Information Technology Applications and Management
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    • 제25권2호
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    • pp.91-108
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    • 2018
  • The purpose of this study is to examine the direction of the students' satisfaction improvement by comparison of related disciplines of undergraduate management information systems (MIS) majors. MIS is one of the academic disciplines that have become important as the demand for manpower for new industries in the 4th industrial revolution. We surveyed 3rd and 4th grade undergraduate students in the departments of management information systems, business administration (BA), computer engineering (CE) of C university. The results revealed that the students' satisfaction was influenced by the ability of the professor, the curriculum development, and the curriculum operation factors. Especially, it was found that the curriculum operating factors among the three departments had greater effect on the students' satisfaction. If the education environment is improved considering curriculum operating factors and the administrative and service factors and that are important in the CE departments, it will be helpful for the students' satisfaction improvement of MIS.

정보시스템의 사용자 만족도 평가에 관한 연구 (A Research for End-User Satisfaction Evaluation on Information Systems)

  • 박민생;신미향
    • 한국컴퓨터정보학회논문지
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    • 제5권4호
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    • pp.154-160
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    • 2000
  • 최근 정보기술의 급격한 발달과 함께 정보시스템의 개념과 역할에도 많은 변화가 나타나고 있다. 더불어 정보시스템의 효과적인 관리와 운영을 위해서는 보다 체계적인 MIS 평가가 요청되고 있는 실정이다. 이전부터 MIS 평가에 관한 많은 연구들이 이루어져 왔으나, 관점의 다양성과 MIS의 도입성과의 포괄성으로 인해 MIS 평가를 위한 사용자 만족도가 개별 시스템에서 산출되는 결과물에 대한 평가로 국한되어왔다. 이에 본 연구에서는 기존의 MIS 평가에 관한 연구들을 기초로 변화된 MIS를 종합적으로 평가할 수 있는 개념적인 프레임워크를 제시하였다. 즉 MIS도입으로 인한 결과물에 대한 사용자 만족도 및 조직 전체의 변화에 대한 만족도 등 기존의 MIS 평가에서 제시된 다양한 관점과 평가방법을 종합하여 새로운 평가 프레임워크를 제시하였다.

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MIS 요인의 경력지향 유형과 직무만족 및 조직몰입간의 관계에 관한 연구 (A Study on the Relationship of the Major Career Orientation of Korean MIS Personnel, Job Satisfaction and Organizational Commitment)

  • 김익균;장윤희;이재범
    • Asia pacific journal of information systems
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    • 제9권4호
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    • pp.163-179
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    • 1999
  • MIS personnel should not only be capable of developing technically sounded systems, but also act as the companion role of strategic management. For this reason, it is important to direct efficient human resource management for MIS personnel. For directing efficient MIS human resource management, this paper studies the relationship of major types of MIS career orientation, job satisfaction and organizational commitment based on the work area of MIS personnel, Based on the empirical analysis using questionnaires answered from MIS personnel of Korean public and private enterprises, the hypotheses of this study were proved. The result of this research shows most of the domestic MIS personnel tends to line up with technology and management favoritism for their career orientation. If an individual career orientation and his or her work area are matched, it presents higher job satisfaction. Furthermore, a group of management orientation shows higher organizational commitment than a group of technology arientation among MIS personnel with identical job satisfaction. Therefore, this study suggests that career orientation of MIS personnel affect the job satisfaction and organizational commitment. In the future, a career management system suitable to the MIS personnel should be developed to improve the effectiveness of MIS organization.

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CPS(Cyber Physical System)와 MIS의 연구기회 탐색 (CPS(Cyber Physical System) & Research Opportunities for MIS)

  • 최무진;박종필
    • 한국정보시스템학회지:정보시스템연구
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    • 제26권4호
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    • pp.63-85
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    • 2017
  • Purpose Recently, much attention in building smart factory has dramatically increased with an emergence of the Industry 4.0. As we noted a connectivity gap between main concerns of MIS and the automated manufacturing systems such as POP and MES, it is recommended that CPS (Cyber-Physical System) can be an important building block for the smart factory and enrich the depth of MIS knowledge. Therefore, first, this study attempted to identify the connectivity gap between the traditional field of MIS (ERP, SCM, CRM, etc.) and the automated manufacturing systems, and then recommended CPS as a technical bridge to fill the gap. Secondly, we studied concepts and research trend of CPS that is believed to be a virtual mechanism to manage manufacturing systems in an integrated manner. Finally, we suggested research and educational opportunities in MIS based on the CPS perspectives. Design/methodology/approach Since this paper introduced relatively new idea of CPS originally discussed in the field of engineering, traditional MIS research method such as survey and experiment may not fit well. Therefore this research collected technical cases through literature survey in engineering fields, video clips from Youtube, and field references from various ICT Exhibitions and Conventions. Then we analyzed and reorganized them to highlight the necessity of CPS and draw some insight to share with MIS academia. Findings This paper introduced CPS to bridge the connectivity gap between the traditional MIS and automated manufacturing system (smart factory), a concern far away from the MIS academia. Further, this paper suggested future research subjects of MIS such as developing software to share big production data and systems to support manufacturing decisions, and innovating MIS curricula including smart and intelligent manufacturing technology within the context of traditional enterprise systems.