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        검색결과 16

        1.
        2023.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        자기공명영상은 영상 의학 분야에서 다른 진단 장비에 비해 연부 조직에 대한 높은 대조도를 지니고 있고 인대의 손상, 주변 조직의 염증, 골염 등의 병변을 진단하는 데 유용하여 연골 및 관절 병변의 진단에 널리 이용되고 있다. 또한, 기존 고식적 TSE 기법 외에도 SMS 기법, DL 기법, CS 기법, 병렬 영상 기법 등 다양한 펄스 시퀀스들이 개발되고 임상에서 사용되고 있다. 본 연구는 무릎 관절 자기공명영상 검사에서 얇은 절편 검사 시 고식적 TSE 기법, SMS TSE 기법, DL TSE 기법에서 영상을 획득하여 각 각의 영상의 비교를 통해 무릎 관절 영상 획득에 최적의 기법에 대하여 알아보고자 한다. 무릎 관절 질환의 진단을 위해 본원에 내원한 환자를 대상으로 고식적 TSE 기법, SMS TSE 기법, DL TSE 기법을 적용하여 시상면 T2 강조 영상을 획득한 후 신호 대 잡음비, 대조도 대 잡음비, 검사 시간, 영상의 질 평가를 정량적, 정성 적 방법으로 비교 분석하였다. 연구 결과 세 가지 기법으로 획득한 영상 비교 시 통계적으로 유의한 차이가 있었으며, 환자 의 상태와 임상의 상황을 종합적으로 고려하여 적절한 기법을 선택한다면, 최적의 영상을 제공할 수 있다고 생각된다.
        4,000원
        3.
        2006.04 구독 인증기관·개인회원 무료
        Densification behavior of various metal and ceramic powder was investigated under cold compaction. The Cap model was proposed based on the parameters obtained from axial and radial deformation of sintered metal powder compacts under uniaxial compression and volumetric strain evolution. For ceramic powder, the parameters were obtained from deformation of green powder compacts under triaxial compression. The Cap model was implemented into a finite element program (ABAQUS) to compare with experimental data for densification behavior of various metal and ceramic powder under cold compaction.
        4.
        2020.02 KCI 등재 서비스 종료(열람 제한)
        The present study investigated the patients’ lexicons in unfolding migrant worker-domestic doctor interactions at a free-of-charge medical center for migrants (Center B) against those at a large general hospital (Hospital A) and those at another small free-of-charge hospital (Hospital C). In so doing, the focus was on the patients’ lexicons at Center B against those at the other institutions. Overall, the data at Center B consisted of approximately 80 consultations that the researcher himself participant-observed and audiorecorded at the three institutions over a span of two years. A qualitative investigation of the patients’ lexicons at Center B demonstrated that the patients who visited Center B initiated far more advanced scientific terminologies. Also, they adopted more nominalized forms, The lexical content and form appeared to result from the fact that the migrant patients were advanced degree seekers in agriculture, engineering, and science. Thus, the patients’ lexicons at Center B illustrated that the finding of the previous studies which argued that the patients at free-of-charge clinics were mostly unskilled laborers were oversimplistic and even stereotyping. The present study proposes a more critical applied linguistic study of migrant patient-domestic doctor consultations.
        5.
        2019.06 KCI 등재 서비스 종료(열람 제한)
        Concentrating on the non-musculoskeletal patients and revising the overall outlines of the phases recognizable in biomedical discourse, the present study investigated the linguistic phase markers that characterized the initial and the follow-up phases and the mini-phases in them, which added up to the characteristic major phases in Korean Oriental Medical discourse (KOMD). Focusing on the centripetal force of the patient’s constitution on KOMD, it proposed distinguishing an initial session from a follow-up session due to the weight on the former for identification of the patient’s constitution. Within the first session, the present study illustrated that the doctor adopted the non-proximal temporal expressions to mark the phase boundaries in an effort to identify the constitution. Such phase markers included habitual or iterative frequency expressions, distal temporal adverbials, experiential constructions without ‘recently’ or ‘nowadays,’ and the habitual present. Subsequently, the study turned to a follow-up session and demonstrated that the doctor adopted proximal temporal expressions in order to demarcate the phase boundaries. Such phase markers included proximal temporal expressions, the temporal adverbials that highlighted the difference between the pre- and post-treatment, and explicit comparatives and equatives. Consequently, the phase models revised for KOMD were in operation, structuring both the major phases and the mini phases in them around the patient’s biophysical, psychosocial, and reactional traits. That said, as Mishler’s (1984) study demonstrated, it worked as long as the interaction was doctor-centered. When the patient’s role in the phases was brought into light, however, the model would invite further revisions.
        6.
        2018.08 KCI 등재 서비스 종료(열람 제한)
        본 연구는 늑골의 사방향 검사 시 환자의 자세 변화가 아닌 X-선관의 수평 축방향 각도 변화를 적용하여 영상화 하였다. 인체 모형 팬텀을 이용하여 일반적인 늑골 사방향의 표준 검사 방법을 적용한 대조 영상과 중심 X-선을 팬텀의 수직 입사 방향으로부터 오른쪽 수평 축 방향으로 5° 간격으로 5°부터 30°까지 6단계의 입사각도 변화를 적용한 변형 사방향 실험 영상을 획득하였다. 영상의 정량적 비교 평가를 위해 대조 영상을 기준으로 실험 영상의 관심 영역 별 SNR과 CNR을 계산하였다. 또한 대조 영상의 좌·우 늑골 비율 과 실험 영상의 X-선 입사각도 별 좌·우 늑골 비율을 측정하여 비교하였다. 실험 결과, 25°의 X-선 입사 각도를 적용한 실험 영상이 표준 검사 방법을 적용한 대조 영상과 비교하였을 때 SNR과 CNR, 좌·우 늑골 비 율의 측정값에서 가장 근사한 값을 나타내었다. 변형 늑골 사방향 검사는 환자의 검사 자세 유지가 어려울 경우 적용할 수 있는 늑골 사방향 검사 방법으로 유용할 것이라 생각된다.
        7.
        2018.06 KCI 등재 서비스 종료(열람 제한)
        The pre-collegiate ESL tutor program at a small satellite campus of a large state university in the USA changed its orientation from a conversation partner program to the recitation program. In so doing, it required both the tutors and the (mostly Asian) tutees to submit weekly reports along with short reflections to each course instructor and to the ESL program coordinator The current action research study qualitatively explored the tutee reflections and investigated their discursive characterization of the tutoring sessions and/or the tutors in an attempt to examine if the change in the program direction was perceivably implemented duing the transition. The data for the study consisted of more than 210 weekly tutee reports for five intermediate and high-intermediate ESL courses that the program offered in spring 2009. The findings illustrated that the reflections generally constructed the peer-tutoring sessions as an academic event, but not so much as an intercultural encounter. In addition, the reflections also constructed the most appreciated qualities of the tutors as kindness in personalty and clarity in academic explanations, but many were lacking substantive details of their praises. The overall findings suggested that the change in the program direction was being implemented as intended albeit at some expense of intercultural awareness. Simultaneously, the findings also pointed to the need of clearer instructions for the academic orientation of the program, intercultural awareness, and more substantive reflections. Finally, the ethnographic background and the findings demonstrated that the pre-collegiate ESL tutor program had its own challenges that were identifiably distinct from those in a tutor program at college writing centers or in EFL peer-tutor programs in an EFL context.
        8.
        2017.12 KCI 등재 서비스 종료(열람 제한)
        Ki-tae Kim. 2017. A Sociolinguistic Study of the Diachronic Changes of the Names of Korean Oriental Clinics: With Special Reference to –tang. Studies in Modern Grammar 96, 149-166. The current study explores the diachronic pattern of the changes in the names of Korean Oriental Medical clinics, the names of which contain the Sino-Korean -tang (堂) in the ult of the core. A total of 636 such names are identified and statistically analyzed along with their founding years through simple exponential smoothing, double exponential smoothing, and the moving average. The results show that there has been a slow, but significant decline from the late 1980’s and on. The primary motivation behind the trend is traced back to the increased sense of Korean identity in the more transnational world at the time. More specifically, the official replacement of han (漢, ‘China/Chinese’) with a homophone han (韓, ‘Korea/Korean’) in referring expressions to Korean Oriental Medicine (e.g., hanuywen ‘Korean Oriental Medical clinic’) in 1986, the subsequent 1988 Olympic Games, and the contemporary movement to use Hankul exclusively at the expense of Hanca including tang all coincided with the decline, thus, contributing to the timing of the consistent decline. Some limitations and implications are also discussed.
        9.
        2017.06 KCI 등재 서비스 종료(열람 제한)
        After pointing out both the paucity of research on cross-cultural telephone call closings between interactants whose dominant languages differ and the lopsided attention to telephone call openings, the present study first illustrates the reciprocal duplication of the identical terminal elements between the conversationalists across the American telephone closing turns and the progressive unilaterality by one interactant, and in response, the repetition of yey ‘yes’ by the other interactant in the Korean telephone closing turns. Then, it turns to an English telephone call closing between a North-American English speaker and a proficient speaker of English whose native language is Korean and whose total length of stay in English-speaking countries is limited to between one year and two years. The data illustrate that the Korean caller’s telephone closing sequence in English resembles that of Korean more than that of North-American English in light of the absence of lexical duplication, minimal reciprocity, and the terminal silence in response to bye in English. The source of the Korean-like behaviors in the English telephone call closing is traced to the influence of the telephone call closing sequence in the speaker’s dominant language (i.e., Korean in this case). The present study identifies it as conversational transfer in order to put more weight on the sequential interdependence and reciprocity of cross-cultural telephone conversation closings without limiting the participants to second language learners. Suggestions for future studies based on the limitations of the present study are also offered along with some pedagogical implications.
        10.
        2016.02 KCI 등재 서비스 종료(열람 제한)
        Korean Oriental Medicine has unequal access to some common linguistic resources that it shares with biomedicine under the dual medical system. At the societal level, the biomedical linguistic hegemonies allow biomedicine to unmark its entities, while mark Oriental ones with han- ‘Korean,’ as the prequel to the present study (Kim 2015c) illustrates. However, there has been little research that investigates the unmarking norms at the (intra-)institutional level of Oriental consultations in reference to those within the discourse of Oriental medicine itself. Noting the gap in research, the present study explores the Oriental interactions that are apparently immune to the societally imposed (un)marking norms and investigates the types, distributions, and meanings (in particular, referential specificity) of the unmarked references to Oriental entities. To do so, it qualitatively analyzes selections from a data set of 15-hour-long naturally-occurring consultations between Oriental doctors and their patients. The findings demonstrate that Oriental interactions frequently form a linguistic enclave, the intra-institutional norms within which regulate that the references to Oriental doctors, clinics, and medications be unmarked. Within the enclave, the unmarked uysas make a reference to a generic Oriental doctor or doctors, while the unmarked first-mention sensayngnim, albeit a rare example, to a specific Oriental doctor (more specifically, the chief doctor). The unmarked first-mention pyengwens, mostly disambiguated by the proximal deictic expressions, refer to the specific Oriental institutions at which the interactions are in progress. The unmarked first-mention yaks refer to specific Oriental medications, whereas the unmarked to a generic one. The apparent contradiction between the findings of the present study and those of the prequel is not surprising at all, but rather is indicative of the very “heteroglossia” (Bakhtin 1984) under the dual medical system in Korea. That is, the references to either of the medicines under the dual system can go unmarked while abiding by a respective set of the referential norms, albeit at different levels: one at the intra-institutional level and the other at the inter-institutional and societal level. Their distributions are also discussed on qualitative and ethnographic terms.
        11.
        2015.06 KCI 등재 서비스 종료(열람 제한)
        The present study investigates the speech acts (Searle 1979) of the four forms of the kkunhta exchange (i.e., kkunhnunta, kkunhulkey(yo), kkunheya(ha)keyssta, and kkunhca) in telephone conversation closings in Korean. It demonstrates that the four cannot be simply lumped together with kkunhe(yo) let alone the annyeng exchange. First, kkunhnunta in telephone conversation closings serves either as an assertive or a commissive (the latter being far more likely). Its subject restriction and sentence type prevent it from functioning as a directive. Second, kkunhulkey(yo) serves only as a commissive. Its subjection restriction and sentence type as a “promissive-assurance” define its speech act as such. It thus formes the “notice/commissive-(silent) acceptance” pair or the “inform-(silent) acknowledge” pair. Third, kunheya(ha)keyssta operates either as a commissive when the elliptical subject is the speaker or as a directive when it is the addressee, bearing some resemblance to kkunhe(yo). However, even as directives, their functions are not identical. Last, kkunhca as a terminal proposal lies between a directive and a commissive. Also, even as a directive, its subject restriction (i.e., first-person plural) differs from that of kkunhe(yo), and accordingly, the adjacency pairs that it belongs to differs from those that kkunhe(yo) does. Overall then, the present study illustrates that the four forms of the kkunhta exchange are functionally distinct from the kkunhe(yo) and annyeng exchanges. Each of them performs different speech acts and belongs to different adjacency pairs.
        12.
        2015.02 KCI 등재 서비스 종료(열람 제한)
        Korean Oriental medicine has unequal access to some linguistic resources that it shares with biomedicine under the dual medical system despite their comparable legal positions. At the societal level, their asymmetric linguistic hegemonies are encapsulated in, and perpetuated by the Medical Law of Korea (e.g., Ch. 1, Article 2), which consistently marks the former with han- ‘Korean’, while unmarking the latter. However, there has been little empirical research that examines the unmarking norms in unfolding discourse. Noting the paucity, the present study investigates whether or not the societal marking norms persist at a situational level, particularly in unfolding Oriental medical interactions, and if so, in what forms. To do so, it qualitatively analyzes a data set of 15-hour-long naturally-occurring consultations between Oriental doctors and their patients. It evidences the consistency of the unmarking norms at the situational level and demonstrates that the first-mention references point to biomedical entities even within an Oriental interaction despite the absence of any linguistic markings that favor biomedicine. Thus, potentially ambiguous unmarked first-mentions such as uysa (sensayngnim) 'doctor,' pyengwen 'hospital/clinic,' yak 'drug,' and uyhak 'medical science' are macrolinguistically disambiguated. Consequently, they discursively materialize the macrolinguistic hegemony that biomedicine holds under the dual medical authority. The very fact that such one-way intertextual references pervade even unfolding Oriental discourse with little confusion and resistance is symbolic of biomedical dominance and power asymmetry between the two medicines.
        13.
        2014.06 KCI 등재 서비스 종료(열람 제한)
        The present study investigates kkunhe(yo) in telephone conversation closings in Korean. After laying down the theoretical foundations on the canonical telephone conversation closings and the termination vs. leave-taking views that Clark and French (1981) propose, it revisits previous studies on Korean telephone conversation closings and illustrates that some group all terminal exchanges together under leave-taking in spite of their apparent contact termination view. It then advocates for the termination view of kkunhe(yo) rather than the leave-taking view in light of the fact that it provides better explanations for the focus of kkunhe(yo) on the contact termination as a speech-act pair even when the second-pair part is filled in with a silent act of a hang-up. In so doing, the study also demonstrates that the termination view adequately differentiates kkunhe(yo) from other terminal exchanges (in particular, leave-taking exchanges such as annyeng).
        14.
        2013.09 KCI 등재 서비스 종료(열람 제한)
        The Korean language demonstrates some confusion in the number distinction of the first person possessives wuli ‘our’ and nay ‘my.’ Several studies have attempted to explain the reasons, but little research has investigated the acquisition and distribution of the two pronouns among children. Thus, this paper asks three questions: first, what pattern young native speakers of Korean such as elementary schoolers demonstrate regarding the usages of the two person possessives; second, when Korean speakers acquire the variations; third, whether or not such sociolinguistic factors as gender play a role in the distribution. This study investigates the patterns in the distribution of the wuli + NP and nay + NP that are produced by 60 elementary-school subjects through an oral Discourse Completion Test (supplemented with pictures). The data demonstrate that even the children make the wuli-nay distinction consistently, predominantly opting for the “canonical” forms. This study, therefore, empirically demonstrates that the number distinction between wuli and nay is prescriptive at best. However, the data do not present a clear pattern of age or gender influence on the distribution.
        15.
        2003.08 KCI 등재 서비스 종료(열람 제한)
        Currently serious conflicts of interests are arisen for the use of coastal area in Korea. However, there no mediation program, mediators' consistent policies and reasonable laws to resolve conflict of interests which may be arisen when developing coastal area. The objective of this study is to lay the evaluation criteria for the formalized objective evaluation among disputants of coastal conflicts for the better understanding and characterizing of coastal conflicts in Korea. In order to do so, this study has adopted for the extraction of the evaluation factors to describe the present conditions of conflicts in the selected study area(Sihwa lake), to analyze the problems, and then to explore alternative approaches for resolving the conflicts. As research methodologies, we have depended upon literature review and field survey methods. As field survey methods, we employed structured questionnaires for the various samples from the experts of research institutes, professors, representatives of NGOs and citizens. Survey results suggested that 5 representative elements comprising 35 detailed elements could be identified. Based on these results, this study was able to identify and classify the evaluation factors and help to resolve coastal conflicts in Korea.
        16.
        2003.08 KCI 등재 서비스 종료(열람 제한)
        Since the beginning of open-door policy, China has been making rapid annual growth with an average 10% economic development. And due to this rapid growth, cargo volumes via ports have been also rapidly increased, and accordingly, current China government has intensively invested in port development. Further, this development project is significantly big scale, compared with those project which Korea and Japan have. Thus, China is beginning to threaten Korean ports, especially Busan port which try to be a hub port in Northeast Asia. For this reason, it has been very important issue for Korea and Busan port to investigate or analyze Chinese ports based on empirical data. Especially, although various studies related to Shanghai and Hong Kong have been conducted, the competitiveness of overall Chinese major ports has been little studied. In this paper, we analyzed competitiveness level of eight Chinese ports with capabilities as container terminal, based on reliable sources. From data analysis, eight Chinese ports were classified into four groups according to competitiveness level. Rankings among four clusters based on competitiveness level are cluster(Hone Kong), cluster C(Shanghai), cluster A(Qingdao, Tianjin, and Yantian) and cluster D(Dalian, Shekou, and Xiamen).