In-situ neutron diffraction has been employed to examine the effect of strain path on lattice strain evolution during monotonic and cyclic tension in an extruded Mg-8.5wt.%Al alloy. In the cyclic tension test, the maximum applied stress increased with cycle number. Lattice strain data were acquired for three grain orientations, characterized by the plane normal to the stress axis. The lattice strain in the hard {10.0} orientation, which is unfavorably oriented for both basal slip and {10.2} extension twinning, evolved linearly throughout both tests during loading and unloading. The {00.2} orientation exhibited significant relaxation associated with {10.2} extension twinning. Coupled with a linear lattice strain unloading behavior, this relaxation led to increasingly compressive residual strains in the {00.2} orientation with increasing cycle number. The {10.1} orientation is favorably oriented for basal slip, and thus showed a soft grain behavior. Microyielding occurred in the monotonic tension test and in all cycles of the cyclic test at an applied stress of ~50 MPa, indicating that strain hardening in this orientation was not completely stable from one cycle to the next. The lattice strain unloading behavior was linear in the {10.1} orientation, leading to a compressive residual strain after every cycle, which, however, did not increase systematically from one cycle to the next as in the {00.2} orientation.

The effect of Al content on the processing of reaction-bonded Al2O3 (RBAO) ceramics using 40v/o ~ 80v/o Al- Zn-Mg alloy powder was studied in order to improve traditional RBAO ceramic processes that use ~ 40v/o pure Al powder. The influence of high Al content in starting Al2O3-Al alloy powder mixtures on its particulate characteristics, reaction-bonding, microstructure, physical and mechanical properties was revealed. Starting Al2O3-Al alloy powder mixtures with 40v/o ~ 80v/o Al alloy powder were milled, reaction-bonded, post-sintered, and characterized. With an increasing Al alloy content, the milling efficiency of Al alloy powder was lowered, resulting in a larger particle size after milling. However, in spite of the larger particle size of Al alloy powder, the oxidation, i.e., reaction-bonding, of the Al alloy was successfully completed via solid and liquid state oxidation, in which the activation energy of the oxidation was nearly the same regardless of Al alloy content. After reaction-bonding and post-sintering at 1600 oC, RBAO ceramics from 80v/o Al alloy content showed a relative density of ~97% and a flexural strength of 251 MPa compared to ~ 96% and 353 MPa for RBAO ceramics from 40v/o Al alloy content, respectively. The lower flexural strength at 80v/o Al alloy content was due to the weak spinel phase that formed from Zn, Mg alloying elements in Al.

예이츠와 엘리엇은 동시대 시인이면서도 별개의 시인처럼 여겨지는 경우가 많다. 그러나 이 둘 사이에는 유사성이 매우 많음을 알 수 있다. 그들은 시의 대상 표현에 있어서 “시적 숭고성”을 얻어내고 있다. 먼저 예이츠는 이를 위하여 고대의 도시 중에 하나인 “비잔티움”을 선택하는 가하면 엘리엇은 “시간”의 이동이라는 개념에 의지하고 있다. ‘숭고성’이라는 롱기누스의 정의에 어울리게 시적 표현의 탁월성과 우수성을 이 두 시인 모두 잘 보여주고 있다.

This study explores a discussion held among raters for a writing assessment in a Korean university. It investigates rater behaviors that influence their decision-making processes as revealed in their interaction during discussion. Four raters independently assessed student writing samples using CEFR scales and then held a discussion session to agree on a single score for each sample. Observation and analysis of the rater discussion showed that there were differences in the degree to which individual raters’ initial judgments were reflected in the final decisions and that each rater’s argument style affected the degree. Raters’ personality dynamics, appreciation of student effort, and comprehension of students’ intended meaning were found to be prominent factors that influenced the process of score decisions. These findings have important implications for the use of discussion in performance assessment and for the rating process in general.

항만국통제를 이용한 해적행위 퇴치는 선박이나 항만 및 그 주변에서 모든 형태의 불법행위를 방지할 수 있는 예방적 조치이므로 매우 효과적이다. 더욱 이 항만국통제는 해적행위를 예방할 뿐만 아니라, 감시, 체포, 소추 및 처벌하 는 보안관련 국제협약을 이행하기 위한 검증된 제도이다. 오늘날 나이지리아에 서 주요 공격대상인 유조선에 대한 대부분의 해적행위는 국가경제의 대들보인 기름과 가스의 개발이 이루어지고 있는 영해 이내에서 발생하고 있다. 본래 해 적행위란 1982년 유엔해양법협약 제101조에 따라 공해상에서 민간선박 또는 민 간항공기의 승무원이나 승객이 사적 목적으로 다른 선박이나 항공기 또는 그 선박이나 항공기 내의 사람이나 재산에 대하여 범하는 불법적 폭력행위, 억류 또는 약탈행위를 말한다. 그러나 저자는 오늘날 나이지리아를 포함한 대부분의 해상 불법행위는 영해 이내의 수역에서 발생하고 있고, 또 공해상으로 그 행위 가 확장하고 있기 때문에 이들 불법행위를 해적행위로 간주하고 이에 대한 대 응방안을 제시한다. 이 논문에서는 나이지리아에서의 해적행위를 퇴치하기 위 한 방안으로서 항만국통제의 효과적인 활용에 대하여 검토한다.

This study examined how L2 learners of English process morphologically complex words (e.g., bareness) and psuedowords (e.g.,*boilness) to investigate if the L2 processing of derivational morphology is subject to critical period effects. It has been claimed that native speakers rely on procedural memory to process morphologically complex words, while L2 learners tend to utilize declarative memory to process them (Ullman, 2001, 2004, 2005). According to Ullman, L2 learners’ reliance on declarative memory for processing morphologically complex words is due to maturational changes in procedural memory. Two related experiments with a masked priming lexical decision task were conducted with two groups of Korean learners: early and late L2 learners. With regard to the results, early L2 learners showed stem priming effects for morphologically related prime-target pairs, which is indicative of morphological decomposition. On the other hand, late L2 learners did not provide any evidence of stem priming, indicating that they might have processed the morphologically complex word/pseudoword as a whole unit. These data suggest that the L2 processing of late learners is different from that of early learners.

Pairs trading is a type of arbitrage investment strategy that buys an underpriced security and simultaneously sells an overpriced security. Since the 1980s, investors have recognized pairs trading as a promising arbitrage strategy that pursues absolute returns rather than relative profits. Thus, individual and institutional traders, as well as hedge fund traders in the financial markets, have an interest in developing a pairs trading strategy. This study proposes pairs trading rules (PTRs) created from a price ratio between securities (i.e., stock index futures) using rough set analysis. The price ratio involves calculating the closing price of one security and dividing it by the closing price of another security and generating Buy or Sell signals according to whether the ratio is increasing or decreasing. In this empirical study, we generate PTRs through rough set analysis applied to various technical indicators derived from the price ratio between KOSPI 200 and S&P 500 index futures. The proposed trading rules for pairs trading indicate high profits in the futures market.

Based on dual coding theory, this study predicted that pictorial typography (PT), a device involving direct visual integration of a written word into a picture of its referent, is more effective for ESL children’s pre-literacy skills, than the non-integrated paring of word and picture on flashcards (FC). The two types of instruction were given to thirty-two Korean children aged six and seven, both embedded within the WordWorld (WW) episodes, an animated TV series developed by PBS. Results from the pre- and post-test design were as follows. PT was more beneficial than FC for the two upperlevel skills, vocabulary and reading fluency, while they were equally beneficial for the two lower-level skills, letter recognition and phonemic awareness. The two mediating variables, gender and age, were shown to have partial effects as well. Dual coding theory and the importance of instructional intervention have been supported by this study.

Real-life time series characteristic data has significant amount of non-stationary components, especially periodic components in nature. Extracting such components has required many ad-hoc techniques with external parameters set by users in a case-by-case manner. In this study, we used Empirical Mode Decomposition Method from Hilbert-Huang Transform to extract them in a systematic manner with least number of ad-hoc parameters set by users. After the periodic components are removed, the remaining time-series data can be analyzed with traditional methods such as ARIMA model. Then we suggest a different way of setting control chart limits for characteristic data with periodic components in addition to ARIMA components.

기존 예이츠 연구에 있어서 극작가로서 예이츠는 주로 아일랜드극 국민운동의 지도자 또는 베케트와 핀터 등에 지대한 영향을 끼친 "유럽" 모더니즘 계열의 극작가로 연구 및 이해되어왔다. 하지만 그 결과 근대 아일랜드 회곡사의 전통 안에서 극작가로서 예이츠의 위치라는 문제는 경시되거나 아일랜드 회곡사의 여백에 기입되는데 그쳐왔다. 본 연구는 현대 아일랜드 회곡사의 중심에 서있는 브라이언 프리엘과 예이츠의 극형식과 주제의 두 축에서 연관 지음으로써 예이츠를 그 전통의 내부로 다시 포섭하려는 2부작 연구의 두 번째이다.

셰이머스 히니가 그의 산문에서 밝히듯이 그의 시작(詩作)에 있어서 가장 큰 벽은 W.B.예이츠라는 아일랜드 시인이었다. 대부분의 시인이 그러하듯이 히니가 그의 창작을 시작할 무렵에도 아일랜드는 예이츠라는 작가에 의해서 표현, 대변되었다. 예이츠는 아일랜드의 신화, 전설, 정치, 자연경관 등의 소재를 망라하여 작품 활동을 하였고 거장 시인으로 인정되었다. 정치적, 종교적 배경은 예이츠와 달랐지만 아일랜드를 인식하고 표현하는 데 있어서 히니가 시인으로서 가지는 부담은 심상한 것이 아니었다. 그러나히니는 북아일랜드를 소재로 하는 그의 작품에서 예이츠의 시적 과정과 표현 방식에서 이탈하려고 하였고, 그것은 북아일랜드의 대지에 그의 시선을 집중하는 것이었다. 과연 그의 작품은 초기 시에서부터 북아일랜드의 데리 농장의 유년기 체험을 소재로 하였다. 정치적인 소재를 표현하는 데 있어서도 히니는 예이츠의 보수적인 성향에서 벗어나 북아일랜드의 정치적 상황을 북아일랜드의 시골정경과 혼효시켜서 낮은 어조로 아우르는 자세로 접근하였고 이는 대부분이 자신의 독자적인 시 세계를 구축하는 결과를 낳았다.

예이츠는 『부활』에서 시대에 필요한 새로운 신화를 창조하려고 성서의 예수 그리스도 부활에 대해 히브리인과 그리스인과 시리아인들의 상반적인 논쟁을 역설적으로 통합 한다. 예이츠는 예수 그리스도의 죽음과 부활, 디오니소스의 죽음과 부활은 새로운 신화인 트로이가 부활되어야 한다고 필요성을 강조하고 있다. 『부활』에서 예이츠는 갈등과 상반은 항상 변화하기에 상관적이고 상대적이며 결국은 하나로 화합된다고 역설하고 있다.

This study investigated the effects of types of post-reading instructional scaffolds on university-level English as a foreign language (EFL) learners’ WebQuest writing performance. One hundred twenty students, randomly selected from 8 EFL classes at a Korean university, were randomly assigned to one of three treatment conditions: (a) online Instructional Conversation (IC), (b) online recitation, or (c) no post-reading instructional scaffold (i.e., control). After reading WebQuest texts, the online IC and online recitation groups received their treatments, using an Internet-based synchronous textual communication tool as a medium for communication. The control group, on the other hand, did not receive any post-reading instructional scaffold and continued to read the WebQuest texts for the same amount of time that the IC and recitation groups received their treatments. Results showed that the online IC group outperformed one or both of the other two groups in overall WebQuest writing performance and in the specific areas of overall writing quality and content. Implications are discussed in both theoretical and practical terms.

The skill of argumentation is problematic for EFL students who are linguistically and rhetorically deficient in expressing academically appropriate forms in English. In fact, many EFL students struggle to write highly elaborate arguments. In this study, we investigated whether EFL students’ skills for argumentation improved after receiving peer feedback. We also investigated which elements of argumentation were related to the quality of argumentative writing. To this end, we used the Toulmin model of argumentation. We collected 34 EFL students’ first drafts and revisions as well as reviewers’ written feedback, and analyzed their drafts and revisions with a range of quantitative and qualitative approaches. We found that peer feedback had a positive effect upon overall writing quality. Peer feedback made meaningful contributions to the development of students’ argumentative strategies they employ. It seems apparent that peer response prompted the students to reflect on whether the logic of their argumentation made sense to the readers.

Lee, Hyemin. 2014. Drama of Resistance, Resistance of Drama: Linguistic Practices, Discourses, and Identities in a South Korean Political Podcast Naneun Ggomsuda. The Sociolinguistic Journal of Korea 22(2), 111-134. This paper attempts to demonstrate how speakers' identities are shaped, negotiated, and performed through linguistic practices in a South Korean political podcast called, Naneun Ggomsuda. Focusing on the linkage between linguistic practices and identity performances, I employ two meaningful metaphors embedded in Naneun Ggomsuda, ‘resistant’ and ‘theatrical,’ and explore intersections among these metaphors and linguistic practices, discursive features, and speakers' identities. Within the resistant and theatrical fields of discourse, speakers actively apply speaking strategies to achieve their goals, which include their identity making process strongly interconnected to their resistant and theatrical linguistic practices. Two kinds of identities, resistant identity and theatrical identity, are the focus, and these identities are not only shaped and performed through speakers' linguistic interactions, but also collided and negotiated by both speakers and audiences in and out of the talk show. While many previous studies have focused on Naneun Ggomsuda as an ‘alternative media,’ this paper reveals that Naneun Ggomsuda can actually be a fruitful venue for the academic investigation of linguistic practices and identity making processes. (171)

Utterly in Their Collocation Patterns and Stand-Alone Use. The Sociolinguistic Journal of Korea 22(2), 91-110. This paper analyzes the maximizers absolutely and utterly in discourse, focusing especially on their collocation patterns and stand-alone use. I have elucidated the connection between their combinations in their dependent use and stand-alone use. This study connects the manners of stand-alone use of absolutely and utterly to their collocation patterns in dependent use. Absolutely strongly tends to collocate with positive lexical items, and frequently with an affirmative token, thus absolutely appears in stand-alone use, often as a response token, whereas utterly never occurs in independent use. The stand-alone form tends to be a better fit for interactive pragmatic roles, such as turn initiation, which is used to respond to a prior speaker, absolute acknowledgment, agreement, pre-closing signal, solidarity, and the floor-holding and bridging devices. The larger relevance of this study is to understand the impact of language use, and analyze these words' collocations and stand-alone use. (169)

Lee, Mijin Josephine Mijin. 2014. Metaphor use in TED Talks: Implications for EFL. The Sociolinguistic Journal of Korea 22(2), 65-90. This study examines the use of metaphor in TED talks with respect to its density, distribution, and functions. Adopting a cognitively-informed discourse framework of metaphor studies, the present paper quantifies and explicates the extent to which metaphors are mapped across the different disciplines of Art/Humanities, Natural Sciences, Social Sciences, and Technology. Also analyzed is the distribution of metaphor across word classes as well as the discursive functions that they work to achieve. The findings indicate that TED Talks are dense with metaphoric lexical units regardless of the type of scholarly discipline. When considering the distribution across word classes, however, diverging patterns in the metaphoric use of nouns, verbs, adjectives, prepositions, and determiners create a dividing line among certain disciplines as in Humanities/Art and Technology. The functions of these metaphors are also described in terms of representational, interpersonal, and textual use. Potential implications for EFL teaching as derived from the analysis are discussed at the end. (155)

나이지리아 영해는 유조선을 포함한 해상교통량의 증대로 해적활동의 주요 근거지가 되고 있다 이러한 . 해상 불법행위는 해적행위를 근절시키겠다는 나이지리아 정부의 의지가 부족할뿐만 아니라 보안요원, 정치인, 석유회사 및 정부간 결탁된 부패의 결과 근절되지 않고 계속되고 있다. 따라서 이 논문에서 는 나이지리아 영해에서의 해적행위 대응을 위하여 항만국 통제의 활용을 제시하고 있다. 이러한 방법은 범세계적 법제와 더불어 국내적 법제의 효과적인 활용을 통해 강화되어야 할 것이다. 이 연구에서는 해적대응을 위한 일반적인 원인과 도전에 대해 검토하고, 더불어 해적대응을 위한 다양한 방안을 도출하기 위하여 여타 국가의 사례를 검토한다. 특히 이 연구에서는 나이지리아의 현행 법제를 통한 해적대응이 효율적이지 못하기 때문에 영해 내에서의 항만을 기반으로 한 항만국 통제의 활용을 제안하고 있다. 왜냐하면 항만은 국제적 지역적 그리고 국내적 , 법제를 시행함에 있어서 제반 해사분야의 활동을 통제하는 최적의 장소로서 나이지리아에서의 해적행위를 효율적으로 통제할 수 있을 것이기 때문이다. 더욱이 이러한 항만국 통제 제도는 기준미달 선박을 찾아내어 출항통제를 하고, 국제적·지역적·국내적 법규의 위반을 방지함은 물론 선박소유자들이 취하고 있는 해적행위 방지를 위한 제반 보안조치를 강화시켜 주기도 한다.

This study investigated the relative contributions of linguistic knowledge and strategy use to L2 listening success, especially in bottom-up and top-down dominant listening tasks. Participants (n = 130) were Korean college students in a required listening course. The tested variables for linguistic knowledge were sentence processing speed, grammar, receptive vocabulary, and productive vocabulary. Listening strategy use was measured with a metacognitive awareness listening questionnaire. We hypothesized that linguistic knowledge will make greater contributions to Bottom-Up-Listening-Comprehension (BULC) than to Top-Down-Listening Comprehension (TDLC), and different aspects of strategies will be accessed in each comprehension type due to different psycholinguistic features of the tasks. A series of stepwise multiple regressions were conducted and confirmed our prediction. The unique variance explained by linguistic knowledge was 27.8% in BULC, but 22.4% in TDLC. Strategy items that address problem solving and mental translation were significantly related to BULC, while items dealing with directed attention and person knowledge had significant explanatory power for TDLC.

A study was conducted to investigate the levels of representation in memory constructed as an outcome of L2 reading comprehension, and the effects of L2 proficiency, prior knowledge, and L1 reading skills on the construction of the representation. A total number of 128 Korean EFL learners participated in the study. Their L2 reading comprehension was tested through verification measure and comprehension questions designed to assess different levels of understanding including the sentence-level, textbase understanding and the situation model, or the deeper level of understanding of what the text is about. Results showed that the representation the L2 readers constructed was characterized as consisting of rather loose textbase understanding and relatively weak, but varying degrees of, situational understanding. Only L2 proficiency, among the three factors, appeared to have a significant effect on the levels of understanding in the representation the L2 readers constructed.