http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Nam, Kyung‐,Wan,Bak, Seong‐,Min,Hu, Enyuan,Yu, Xiqian,Zhou, Youngning,Wang, Xiaojian,Wu, Lijun,Zhu, Yimei,Chung, Kyung‐,Yoon,Yang, Xiao‐,Qing WILEY‐VCH Verlag 2013 Advanced Functional Materials Vol.23 No.8
<P><B>Abstract</B></P><P>The thermal instability of the cathode materials in lithium‐ion batteries is an important safety issue, requiring the incorporation of several approaches to prevent thermal runaway and combustion. Systematic studies, using combined well‐defined in situ techniques, are crucial to obtaining in‐depth understanding of the structural origin of this thermal instability in overcharged cathode materials. Here time‐resolved X‐ray diffraction, X‐ray absorption, mass spectroscopy, and high‐resolution transmission electron microscopy during heating are combined to detail the structural changes in overcharged Li<SUB><I>x</I></SUB>Ni<SUB>0.8</SUB>Co<SUB>0.15</SUB>Al<SUB>0.05</SUB>O<SUB>2</SUB> and Li<SUB><I>x</I></SUB>Ni<SUB>1/3</SUB>Co<SUB>1/3</SUB>Mn<SUB>1/3</SUB>O<SUB>2</SUB> cathode materials. By employing these several techniques in concert, various aspects of the structural changes are investigated in these two materials at an overcharged state; these include differences in phase‐distribution after overcharge, phase nucleation and propagation during heating, the preferred atomic sites and migration paths of Ni, Co, and Mn, and their individual contributions to thermal stability, together with measuring the oxygen release that accompanies these structural changes. These results provide valuable guidance for developing new cathode materials with improved safety characteristics.</P>
Outlier Tests in Sample Surveys
Namkyung, Pyong,Lee, Joon Suk 한국통계학회 2000 Communications for statistical applications and me Vol.7 No.2
In this paper, we considered three methods for outlier identification sample surveys. First, we studied method of handling and adjusting outliers in normal population. Second, we studied existing methods using mean, maximum and minimum and proposed a test using of median which well reflects characteristic of data regardless of sampling distribution. Finally, we showed our test using median works better than Dixon and mean test through simulation.
Namkyung Lee,Kum-Hwan Roh 한국전산응용수학회 2021 Journal of Applied and Pure Mathematics Vol.3 No.5
In this paper, we obtain the optimal portfolio, consumption and voluntary retirement strategies of an investor with subsistence consumption constraints. And we apply subsistence consumption constraints to the investor's lifetime.
Considerations for Web of Object Service Architecture on IoT Environment
NamKyung Lee,HyunWoo Lee,Won Ryu 보안공학연구지원센터 2015 International Journal of Smart Home Vol.9 No.1
The internet is an optimal place to human as a producer or a consumer for sharing information until now. In the future, not only the human-generated information but also things will be connected into internet and these will evolve into internet of things(IoT) which can share the information thing-in-itself and its environment. Firstly, this paper proposes a service architecture which includes various devices for providing web base IoT services. Secondly, this paper also proposes a service platform which supports service orchestration and composition with device objectification and finally describes structure and functionalities of web of object gateway.
이남경(Namkyung Lee),김은주(Eunju Kim),유관우(Kwanwoo Ryu) 한국정보과학회 2003 한국정보과학회 학술발표논문집 Vol.30 No.2Ⅱ
컴퓨터 그래픽스 분야에서 자연현상을 표현하기 위한 노력은 계속되어 오고 있다. 몇몇 자연현상들에 대해서는 만족할 만한 결과가 나와 있지만, 해양파(ocean wave)를 표현하기 위한 적절한 모델이 제시되어 있지 않다. 본 논문에서는 해양학의 연구 결과를 바탕으로 하여 사실적이면서도 실시간에 재생가능한 해양파를 구현하였다.
1950년대 여성 지식인 담론 연구 : 『이대학보』의 문학 담론을 중심으로
연남경(Namkyung Yeon) 구보학회 2020 구보학보 Vol.0 No.24
This paper originated from an attempt to find the voice of a female intellectual who was not heard in the 1950s knowledge field where modern knowledge was formed. From 1954 to 1963, Edae Hak-bo(Ewha Womans University Weekly Newspaper) is a miniature of society that was running toward national reconstruction, however, shows the gender specificity. Ewha Womans University is a modern educational university that cultivates female intellectuals. The willingness to contribute to the national society in which it is a woman and as an intellectual has resulted in a strong discourse of enlightening and resetting the role of the female elite. In the post-war chaotic society, it tried to settle women’s equality and encourage women to enter the society, but on the other hand, it was achieved by limiting the women’s domain in society and recovering it within the patriarchal order. Meanwhile, questions about the gendered academic system and questions about the gendered professional system and social culture were also raised through various discussions, planning articles, editorials, and arrangements of students’ contributions. Edae Hak-bo advocated cultivating elites centered on culture and arts to secure the roles and status of female college students who were not recognized as intellectuals at the time. In the process of making it, male intellectuals (writers/critics) took the place of mentors, and the literary activities of female college students showed the situation that was constantly subject to enlightenment. However, it was also a space where the discordant students’ utterances were discovered, and a critical intervention by a young female writer was made. While looking at the prospects of newspaper novels and trying to explain why bestsellers should be read, the voice of a female writer was not delivered as an effective discourse to a literary field seeking new modern literature. Nevertheless, as confirmed in the 1950’s Edae Hak-bo, female elites were actively looking for literature in the literature and communicating with the public. 본고는 현대의 ‘知’가 형성된 1950년대의 지식장에서 들리지 않았던 여성 지식인의 목소리를 찾으려는 시도에서 비롯되었다. 『이대학보』(1954-1963)는 여성 지식인들의 다양하면서도 비균질적인 목소리들이 활발하게 발견되는 장이었다. 당시 『이대학보』는 국가 재건을 향해 달려가던 사회의 축소판이면서도 젠더적 특수성을 잘 보여준다. 전후라는 특수한 상황에서 이들은 여성 인텔리겐차로서 자신이 몸담고 있는 국가사회에 기여하고자 하는 소명의식을 갖고 여성 엘리트의 역할을 재설정하고 또한 단속하는 강력한 계몽 담론의 주체가 된다. 전후의 혼란한 사회에서 남녀 평등 사상을 정착시키고 여성의 사회적 진출을 독려하고자 했지만 한편으로는 사회에서 여성의 영역을 스스로 제한하고 가부장적 질서 내부로 회수하는 방식으로 이루어지기도 했다. 그런 한편 각종 좌담회와 기획 기사, 사설, 학생의 기고문 등의 배치를 통해 젠더화된 학문 체제에 대한 의문이, 젠더화된 직업 체제와 사회문화에 대한 질문들이 제기되기도 했던 역동적 공간이었다. 『이대학보』는 당시 지식인으로 인정받지 못했던 여대생들의 역할과 위상을 확보하기 위해 문화예술 중심의 엘리트 양성을 표방했다. 이때 학보가 참조했던 담론은 주로 미국(서구사회) 발 지식과 남성(문인)의 지식이었다. 『이대학보』는 여성 문화 엘리트를 양성하려는 취지를 가졌고 여대생 스스로가 문화의 주체로서 자리매김하려 했으나, 그것을 만들어가는 과정에서 남성 지식인(작가/비평가)이 스승의 자리를 차지함으로써 여대생의 문학 활동은 끊임없이 계몽의 대상이 되었던 사정을 잘 보여준다. 그러나 이에 불화하는 학생들의 발화들이 발견되고, 젊은 여성 작가의 비평적 개입이 이루어지는 공간이기도 했다. 신문소설의 전망을 내다보고 베스트셀러가 읽혀야 하는 이유를 피력하기도 했지만, 여성 작가의 목소리는 새로운 현대문학을 모색하던 문학장에 유효한 담론으로 전달되지 않았다. 이렇게 젊은 남성 문인들이 강력하게 견인했던 1950년대 한국현대비평의 담론장에서 여성 문인의 발화는 누락되어 왔지만, 1950년대 『이대학보』에서 확인한바 여성 엘리트들은 문학장에서 활발하게 활동하며 대중들과 소통하는 한국문학을 모색하고 있었다.