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      • KCI등재

        Advanced Circuit-Level Model of Magnetic Tunnel Junction-based Spin-Torque Oscillator with Perpendicular Anisotropy Field

        김미련,임혜인,안소라,이승준,신형순 대한전자공학회 2013 Journal of semiconductor technology and science Vol.13 No.6

        Interest in spin-torque oscillators (STOs) has been increasing due to their potential use in communication devices. In particular the magnetic tunnel junction-based STO (MTJ-STO) with high perpendicular anisotropy is gaining attention since it can generate high output power. In this paper, a circuit-level model for an in-plane magnetized MTJ-STO with partial perpendicular anisotropy is proposed. The model includes the perpendicular torque and the shift field for more accurate modeling. The bias voltage dependence of perpendicular torque is represented as quadratic. The model is written in Verilog-A, and simulated using HSPICE simulator with a current-mirror circuit and a multi-stage wideband amplifier. The simulation results show the proposed model can accurately replicate the experimental data such that the power increases and the frequency decreases as the value of the perpendicular anisotropy gets close to the value of the demagnetizing field.

      • KCI등재후보

        고등학생의 건강증진 프로그램 참여의사에 영향을 미치는 요인

        김미련(Mi Ryun Kim) 韓國學校保健學會 2006 韓國學校保健學會誌 Vol.19 No.2

        Purpose : The principal objective of this study was to develop adequate health promotion programs satisfying the needs of high school students by exploring a variety of factors that affected their participation in these programs. This research was also designed to serve as preliminary data for the development of health promotion programs that will encourage active student participation. Methods : The study used a descriptive correlational design. The study participants were 658 coeducational high school students in Seoul, consisting of 317 9th graders and 341 10th graders. For this study, 599 structured questionnaires were selected. The survey was conducted for the period from December 12, 2005 to December 23, 2005. Results : Overall, students surveyed in this research showed relatively active participation in health-promoting behaviors. Among 5 dimensions, interpersonal support received the highest score while health responsibility ranked the lowest. Another finding was that posture correction program enjoyed the strongest student participation (75.5%) followed by stress management program(70.1%) and weight control program (56.6%). On the other hand, the participation rates for no-drinking(12.9%), smoking cessation program(17.0%), and influenza prevention program(22.9%) were at the low end. Multiple logistic regression results indicate that the higher interpersonal support score of health promoting behaviors gets, the higher student participation becomes. Conclusion : The study demonstrated that student participation was determined by the nature of health-promoting programs, demographic characteristics and health related physical fitness. It also showed that the sub-scales of the programs played a bigger role in student participation. Keeping this in mind, a wealth of health-enhancing programs of distinguishing qualities need to be tailored to meet various needs of students. In addition, serious efforts should be made to motivate them to seek relevant health promotion programs.

      • KCI등재

        韓国人ニューカマーの韓国語継承の問題 ― ニューカマー1世へのインタビュー調査を踏まえて ―

        金美連 한국일본학회 2017 日本學報 Vol.113 No.-

        이 논문의 목적은 재일한국인 뉴커머의 한국어 계승에 대한 실태를 파악하는 것이다. 1980년대 후반부터 한일의 경제/문화적 교류의 활성화에 따라 한국인의 일본 거주가 증가하였는데 그들을 뉴커머라고 일컫는다. 하지만 한국인 뉴커머의 언어생활에 대한 실태조사는 별로 이루어지지 않은 상황이기 때문에 본 연구는 그 필요성에 따라 일본에서 장기체류를 해 온 뉴커머 1세 주부 12명을 대상으로 인터뷰조사를 행하여 뉴커머의 언어계승의 현황을 살피고자 하였다. 본 연구의 조사결과에 의하면 부모가 한국인 뉴커머 1세면 자녀들도 한국어를 충분히 이해하리라고 생각하기 쉽지만, 일본의 지방에서는 모국어교육이 각 가정의 자체적인 노력에 맡겨져 있기 때문에 한국어 계승은 힘든 상황에 놓여 있다는 것이 밝혀졌다. 또한 동경이나 오사카 같은 대도시에는 한국학교가 있지만, 일본의 대학진학에 있어서 불리한 면이 많기 때문에 장기체류자들에게는 선호되지 않고 있다. 일본에 장기체류를 하고 있는 한국인 뉴커머들은 자녀들이 민족적 아이덴티티를 가지고 일본에서 생활하기를 바라는 바램은 있으나, 일본에서의 대학진학과 취직 등 현실적 적응과 안정된 생활을 더 선호함이 드러났다. 또한 올드커머에 비하면 일반적으로 아이덴티티 확립에 중요한 영향을 미친다고 하는 언어의 계승을 민족적 아이덴티티와 분리해서 생각하는 경향이 강함을 알 수 있었다. The purpose of this paper is to examine the current situation pertaining to language inheritance of Korean newcomers in Japan. Since the late 1980s, as Korean and Japanese economic and cultural exchanges have become more active, Koreans have increasingly taken up residence in Japan. These Koreans are known as newcomers. However, as there are few surveys on the linguistic life of Korean newcomers, the actual situation is not grasped very well. This study attempted to clarify the actual state of Korean language inheritance of Korean newcomers based on interviews with 12 mothers. According to the survey, the children of parents who are Korean speakers are likely to be able to speak the Korean language, but in situations in some places such as rural areas, native language education relies on self-help efforts at home; thus, the inheritance of the Korean language finds itself in a very difficult situation. There are also Korean schools in major cities such as Tokyo and Osaka, but those who attend these schools are at a major disadvantages when entering universities in Japan, which is why they are not preferred by long-term residents. Although Korean newcomers who are parents hope to preserve their children’s ethnic identity in Japan, it is revealed that such ideas are not necessarily linked to maintaining or using the native language. Furthermore, compared with older immigrants, it is pointed out that there is a strong tendency for newcomers to think differently about retaining their ethnic identity and the inheritance of their native language, which generally has a great influence on the establishment of an identity.

      • PT조건하 V_2O_5에 의한 Alcohol의 산화

        강선희,김미련,선자,현옥,노복자,이기화,이정숙 曉星女子大學校 藥學大學 學生會 1988 曉星藥誌 Vol.4 No.-

        2, 3; 5,6-di-O-isopropylidene-α-D -mannofuranose(ManA) were oxidized to their cor-responding 2, 3;5,6-di-O-isoprolylidene-α-D-manno-1.4-lactone(ManB) using calcium chlorite as oxidant in a phase transfer catalysis system. But identified results were not obvious. V_2O_5 catalzed oxidation of primary and secondary alcohols to aldehydes and ketones respectively at alkali conditions under Solod-Liquid phase transfer conditions. This reaction affords good overall yields of products without formation of undersirable.

      • 감정과 소비자 행동

        성한기,김미련 대구효성카돌릭대학교사회과학연구소 1998 사회과학연구 Vol.5 No.-

        The influence of affect on consumer’s psychological functioning and behavior is quite pervasive, though it is often undramatic and sometimes subtle enough to be unrecognized. This paper begins with a brief historical perspective on the nature of psylogical inquiry involving affect. Next it describes physiological approaches to the study of affect and the distination between affect, emotion, and mood. A comperehensive review of the relevant consumer behavior literature follows. The concluding section presents the relationship of affect and cognition.

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