마그네슘 시비농도를 인위적으로 조절하여 '매향' 딸기를 관비재배하면서 Mg의 시비수준이 생장과 결핍증상 발현에 미치는 영향을 구명하고, 건전생육을 유지할 수 있는 식물체 및 토양의 한계농도를 밝히기 위하여 본 연구를 수행하였다. 마그네슘 결핍증상은 하위엽에서 발생하였으며, 초기에 하위엽의 엽맥 사이에서 반점 형태의 황화현상이 나타난 후 점차 반점 부위가 확산되어 엽맥간 황화현상으로 발전하였다 또한 증상이 심해지면서 엽맥 사이가 검게 변하고, 하위엽 선단의 갈변 및 괴사하는 증상이 발생하였다. Mg시비농도를 조절하여 관비하고 정식 120일 후에 지상부 생육을 조사한 결과 Mg 1.0 또는 2mM의 처리에서 생육이 우수하였으며, 0.5 이하나 4mM 이상으로 Mg 시비농도를 조절한 처리의 생장이 저조해지는 경향이었다. 건물중은 마그네슘 시비농도에 대하여 3차 곡선회귀적인 반응을 보였으며 식물체당 약 8.2g의 건물중을 생산할 때 정점이 형성되었다. 최대 생장량의 90%를 최저 한계점으로 간주하면 식물체당 7.4g 이상의 건물중을 생산하기 위해서는 Mg 함량이 0.30~0.65%의 범위에 포함되도록 시비해야 하며, 최적 시비농도는 약 2mM 이라고 판단하였다. 또한, 최대 생산량인 식물체당 생체중 36.2g의 90%를 최저 및 치고 한계점으로 간주 할 경우 엽병 추출액의 Mg농도가 19~40mg·kg-1의 범위에 포함되도록 시비해야 한다고 판단하였다.

국내육성 딸기 신품종인 '매향'을 Ca 농도를 조절한 관비용액으로 재배하면서 결핍증상의 특징과 결핍증상을 유발하는 건물중 및 생체즙액내 한계농도를 구명하기 위하여 본 연구를 수행하였다. Ca 결핍증상은 신엽에서 발생하였고, 신엽의 엽맥 부분이 갈변하는 증상과 함께 신엽이 기형화되면서 선단부가 괴사하는 증상이었다. 정식 후 120일에 지상부의 생육을 조사한 결과 엽수, 엽장, 엽병장, 생체중 및 건물중은 4.5mM과 6mM 시비구에서 생육이 우수하였고, 3mM 이하나 9mM의 칼슘 농도에서 생장량이 적어 2차곡선회귀가 성립하였고 경향이 뚜렷하였다. 식물체당 건물중 4.9g에서 2차 곡선회귀의 정점이 형성되었으며(y=2.4026+1.0209x-0.09852, R2=0.3546***), 최대 생장량의 90% 이상 생장량을 최저 한계점으로 설정하면 식물체당 약 4.4g이상의 건물중을 생산해야 하며 건물중에 기초한 Ca함량이 1.6~2.25%의 범위에 포함 되도록 시비량을 조절해야 할 것으로 판단하였다. 생체중도 Ca 시비농도에 대하여 3차 곡선회귀적인 반응을 보였으며(y=9.273+4.882x-0.42452, R2=0.4935***), 식물체당 239에서 정점이 형성되었다. 최대 생장량의 90% 이상을 확보하려면 엽병 추출액의 Ca 농도가 63~79mg·kg-1의 범위에 포함되도록 Ca 시비농도를 조절해야 한다고 판단하였다.

기존 콘크리트 포장의 단면 설계 시 발생하는 문제점을 해결하기 위해 유한 요소법(FEM)을 이용하여 것이 하나의 방법론으로 부각되었으며 현재 한국형 포장 설계법 개발 연구에서도 적용 중에 있다. 본 연구에서는 ABAQUS와 포트란 해석 프로그램을 이용하여 콘크리트 포장의 한계 응력을 계산하였고, 그 결과를 뉴럴 네트워크와 선형 회귀식을 이용하여 비교 분석하였다. 입력 변수가 많지만 다양한 해석을 하지 못하는 경우(입력변수 6개에 대해 81 경우 수 해석)에 대해 구조해석 결과를 뉴럴 네트워크(이하 NN: Neural Networks)와 선형 회귀식으로 비교한 결과, 구조해석 결과와 다소 차이가 있음을 확인하였다. 반면 입력 변수를 줄이되 다양한 경우에 해석한 경우(입력 변수 3개에 대해 343 경우의 수)의 분석 결과, NN과 선형 회귀식이 구조해석 결과와 매우 유사한 결과가 나타나는 것을 알 수 있었다. 하지만 그래프의 (0,0), (1,1) 부분에서 NN이 선형 회귀식에 비해 더 정확한 것을 확인하였다. 이와 같은 연구 결과를 통해서 한국형 포장 설계법의 핵심인 응력 계산 모듈을 선형 회귀식보다 좀 더 정확한 NN으로 해석하는 것을 제안하였다.

This article explores how the conflicting ideological positions of the news media in two different countries are reflected in their perceptions of the postwar situation in Iraq and become encoded in lexical choices and strategies in relation to the cognitive and socio-political dimension of the media. The target data were collected from the on-line news reports posted on the respective web sites of the two networks: the Fox News Channel in the U.S. (foxnews.com) and the English-language version of Al-Jazeera in Qatar (english.aljazeera.net). This study adopts an interdisciplinary theoretical framework of critical discourse analysis for ideological representations in news discourse by integrating labeling strategies in information structure from critical discourse scholars (Tomlin et al. 1997; Fairclough 1992, 1995). In particular, the lexical choices and their cognitive and discursive strategies are qualitatively and quantitatively examined by focusing on the labels on the War against Iraq and postwar Iraq. As a result, this study seeks to verify the idea that the ideological differences between the two news networks result in their own strategically and informationally structured labels on Iraqi situations in each news text, keeping and reproducing the separating concept of Self and Other according to each network's socio-cultural identity and ideology.

화장품과 유처리제 등에 응용할 수 있는 양이온 계면활성제인 N-octadecyl pyridinium bromide를 사용하여 온도 40~60℃ 범위에서 적하법을 이용한 임계미셀농도를 적용 미셀형성에 따른 열역학적 특성(자유에너지, 엔탈피, 엔트로피, 열용량)을 조사하였다. 그 결과 자유에너지 변화는 온도가 증가함에 따라 감소함을 알 수 있었다.

화장품과 유처리제 등에 응용할 수 있는 계면활성제인 hexadecyl pyridinium bromide를 사용하여 온도 40~60℃ 범위에서 임계미셀농도를 적하법으로 측정한 결과를 이용하여 미셀형성에 따른 열역학적 양을 다항식으로 계산하였다.

비대칭 및 대칭 변단면 압축재( = m)의 임계하중을 수치 해석법의 하나인 유한 요소법으로 결정하였다. 해석에서 고려한 변수는 taper parameter(=a) 와 단면 성능 변수 m이다. 구조설계 및 구조의 안전 검토에 임하는 구조 기술자들의 편의를 위하여 유한요소법으로 결정한 임계하중의 계수 변화는 하나의 대수식으로 표시하였다. 대수식에 나타나는 계수들은 회귀분석법으로 결정하였다.

Despite many innovative changes such as CLT and task-based teaching, ELT still continues to transmit linguistic skills mostly to prepare learners for future job market (Canagarajah, 1999; Kim, 2002; Norton & Toohey, 2004; Pennycook, 2001; Sung, 2006). Accordingly, in a way to challenge the status quo of decontextualized practices in EFL in Korea, this paper exemplifies the researcher's emic experiences of realigning ELT to critical theory(CT) and pedagogy(CP) for an MA English program over the years. More specifically, after presenting existing literature on the history of ELT in Korea and CT and CP, this study utilized a research method of bricolage (Denzin & Lincoln, 2005) in which the teacher and student interviews, the student survey, and other relevant curricular and instructional materials were cross-compared and analyzed in the manner of triangulation. In doing so, this paper explains a few principles of developing an EFL graduate program for both domestic and international students. The results showed that exposing students to English-only environments and external faculty from abroad played key roles in the program. However, the lack of coherent administrative support and the high faculty turn-over rate posed constant threats to the enhancement of the program. Lastly, the paper calls for the urgent need of glocalizing curricular and instructional elements in TEFL for ‘critically conscious and conscientious’ practices by mobilizing the concept of 'criticality' in EFL contexts.

This study investigated how task involvement should be practiced to fulfill the theoretical assumptions of Task-Based Instruction (TBI). As the task involvement is to be understood as an indispensable component of TBI, how a high degree of task involvement can be secured and exerted in a most effective way was examined. Having analyzed the data obtained from questionnaire, interviews, reflection papers and proficiency tests, the study indicated that customized and timely feedback and comments on the learners’ performances as well as learners’ sense of responsibility were critical if the task involvement leads to desirable learning outcomes. The study also showed that consciousness-raising (CR) task originated from an authentic task was effective enough to help learners acquire linguistic knowledge in a contextual situation. It made suggestions for how to promote task involvement to better implement TBI, through which the learners can improve language proficiency fully taking advantage of their educational and cognitive experiences.

The Korean Penal Execution Act has been revised several times for the purpose of strengthening the ability of adaptation to a society for prisoners. This article has reviewed major issues of the draft for revision and analyzed the propriety of the issues. The paper addresses the issues in sequence of the draft for revision and they are as follows: First of all, it explores an extension of human rights for prisoners, such as the issues of security level of correctional facilities, construction criteria of correctional facilities, duties of the head of prison, freedom of religion in prison, freedom of writing, kinds of protective equipments, kinds of punishments, consideration of minority and the social weak, declaration of presumption of innocence of the convicted, and the principle of sole internment for a person who is sentenced to death etc. In particular, the government has to provide adequate medical facilities for a prisoner's needs Moreover, prison officials may be obligated to provide continuing medical treatment to newly released prisoners until the prisoners are able to obtain medical care on their own. In sum, prison officials should not interfere with a prisoner's exercise of fundamental rights of constitution unless the interference is reasonably related to a legitimate penal interest, nor may prison officials retaliate against a prisoner for exercising such rights. Second, it discusses the issue of extension of external communications and reinforcement of the ability of adaptation to a society. For example, the right of access, the right of use of mails, and telephone communication etc. Third, it deals also with reinforcement of the capacity for administration of internment, such as a legal basis of electronic surveillance system. Lastly, it examines the ways enhancing the efficiency and transparency of correction administration, such as mandatory institutionalization of the corrections committee for consultation, introduction of authority for the delivery of personal belongings, and legalization of interview system with the head of prison and so on.

본 연구에서는 풍속이 증가함에 따라 영각이 변하는 점을 반영하여 교량 플러터에 대한 안정성을 판정할 수 있는 합리적인 기준을 제시하는데 목적을 두고 있다. 이를 위하여 국내외의 교량에서 실측 자료와 풍속 스펙트럼을 이용하여 구한 영각과 풍속의 관계로부터 풍속 별로 일정한 안전율을 확보할 수 있는 새로운 플러터 안정성 판단 기준을 제시하였다. 제시한 기준은 플러터 발생 풍속이 영각 ±2.5 도 이내에서 한계풍속 이상보다 커야 하며, ±2.5~±5도 사이에서는 영각에 따라 풍속을 한계풍속의 30% 까지 감소시킬 수 있도록 하였다.

In the last few years there has been a proliferation of asynchronous online discussion forums which have opened up the possibilities for people to exchange ideas at any place and at any time. The literature has documented that asynchronous online discussion has the following desirable characteristics: 1) it may help enhance the participation of students who might be less willing to participate in traditional face-to-face classroom settings due to shyness; and 2) it has the potential to encourage more thoughtful responses since participants can take their own time in composing their thoughts. Nonetheless, despite the promise of asynchronous online discussion to promote rich learning experiences, students do not always make use of its potential. The purpose of this study was to examine how a group of Singapore students interacted with one another, as well as the types of thinking skills, critical or creative thinking, and levels of information processing they exhibited during an asynchronous online discussion. This was an attempt to develop certain guidelines that would help facilitate students' in-depth thinking and promote student-to-student interaction in an online discussion environment.*

다공성 폴리비닐리덴플루오라이드(PVDF, polyvinylidenefluoride) 그리고 폴리테트라플루오르에틸렌(PTFE, Polytetrafluoroethylene)에 대하여 순수한 물, 0.1 M～4.0 M NaOH 수용액, 그리고 0.1 M～3.0 M NaHSO3 수용액을 사용하여 임계투과압력을 측정하였다. 임계투과압력은 동일한 평균 기공 크기의 PVDF보다 PTFE가 크게 나타남을 관찰할 수 있었다. NaOH 수용액의 경우 NaOH의 농도 증가에 따라 임계투과압력은 감소하였으며 1.0 M 농도에서 최소값을 나타낸 후 다시 증가함을 확인하였다. 그러나 NaOH이 아닌 다른 염을 용해한 수용액인 NaHSO3 수용액의 경우 농도를 3.0 M까지 증가하여도 임계투과압력이 계속 감소함을 알 수 있었다. 이와 같은 현상을 이론적인 Cantor식으로 해석할 수 있었다.

The aim of this paper is to figure out how to write the role of women in mission by analysing two writings of mission history: one from women's history (Dana Lee Robert's writing)and the other from feminist history (Lesley Orr Macdoland). This paper aims to demonstrate the historical perspective and methodology for women in mission and identifies a certain view of Asian women in mission in the fields of western historiography for women. This paper adapts critical analysis in terms of methodology and perspectives on the writings. Two important works on mission history have been published: firstly, American Women in Mission: A Social History of Their Thought and Practice written by Dana Lee Robert in 1997; secondly, A Unique and Glorious Mission; Women and Presbyterianism in Scotland, 1830-1930 written by Lesley A. Orr MacDonald in 2000. The two writings share some similarities and at the same time differences in terms of the women's and feminist concepts of history. Both historians' writings are overlapped and integrated in the same theme, namely women in mission. There are some discussible issues on the writings of women from a Asian perspective. First of all, the limited use of materials was problematic. Both historians used only English sources writing about women in mission fields where were located out of the United Kingdom and the U.S.A. Even though the stories were about western missionary women, the historians objectively needed to deal with the indigenous women's feeling and assessment of missionary women. Their use of sources thus reflects a kind of favouritism. Secondly, Women's history emphasises only the clear lack of historical achievements by male-centred studies in the existing histories. Feminist history stresses upon the dual structure between men and women with the analysis and method of women's story. Their historiographies are not appropriate in order to clarify the significance of women's role in the relationship between people in mission fields. The absence of such practical aspects of mission impairs their analysis of the story of women in history. Thirdly, they mainly focus on the public work and try to justify women's status in mission in terms of concord and discord between women and institutions, thus using the same criteria for success. If we regarded a lot of hidden women in mission in practice, the historical research has to possess much wider insight of research objects, women, in mission history. Through the research of this thesis and with an Asian view, the researcher obtains how to develop historical research on the role of women in mission into the way of historical writing for women in a manner that reflect the strengths of the methodologies review in this paper, and redress their weaknesses.

Five kinds of double stacked 385 (55 x7) filamentary Bi2212/Ag round wires and 55 filamentary tapes with different Ag ratios (silver area/superconductor area) have been fabricated via PIT method, and the effects of Ag ratio and processing factors on critical current density were studied. The effects of the maximum temperature and average filament diameter on critical current density were also studied. The wire of 0.74 mm diameter having Ag ratio 3.7 showed critical current density of at 4.2 K, 0 T.