기형성 근이긴장증의 1예

이지용,조한선,김원천,최일생 대한신경과학회 1988 대한신경과학회지 Vol.6 No.2

인공지능 시대, 대화의 개념과 인식 양상에 대한 고찰

이지용 중앙어문학회 2023 語文論集 Vol.96 No.-

본 연구는 현재 주목받고 있는 생성형 인공지능의 작동 방식을 중심으로 하여, 인공지능과의 대화라는 설정이 우리 사회에서 인공지능에 대해, 그리고 ‘대화’라는 개념에 대해 어떻게 인식하고 있는지 살펴보는 것을 목적으로 한다. ChatGPT의 등장으로 우리는 생성형 인공지능 시대를 맞이하였으며, 이제 인공지능과의 대화를 당연한 일로 간주하고 있다. 인공지능 기술의 혁신 주기가 단축되고 기술에 대한 접근성이 확대됨에 따라 사람들의 기술에 대한 인식도 변화하고 있는 것이다. 특히 생성형 인공지능으로 인해 인공지능과 대화를 한다는 것이 당연시되고 있다. 이는 인공지능에게 인간과 대화가 가능한 존재로서의 그 역할을 부여하는 것이다. 이로 인해 인간 언어의 고유한 형태로 볼 수 있는 ‘대화’의 개념에 대해 다시 규정해야 할 필요가 제기된다. 이에 따라 본 연구에서 다루고자 하는 주요 연구 내용은 첫째 다면어로서의 ‘대화’ 개념을 설정할 필요가 있다는 것과, 둘째로는 ‘인공지능과의 대화’에 대한 사회적 지각 양상에 대한 것이다. This research focuses on the operation of contemporary attention-grabbing generative artificial intelligence, with the goal of examining how society perceives artificial intelligence and the concept of ‘conversation’ through the setting ofinteraction with AI. With the advent of ChatGPT, we have entered the era of generative AI, and now conversations with artificial intelligence are considered commonplace. As innovation cycles in AI technology shorten and accessibility totechnology expands, people’s perception of technology is also evolving. In particular, with generative artificial intelligence, it is now taken for granted to have conversations with artificial intelligence. This gives artificial intelligence its role as a being that can communicate with humans. This raises the need toredefine the concept of ‘conversation’, which can be seen as a unique form of human language. Accordingly, the main research contents to be covered in this study are, first, the need to establish the concept of ‘conversation’ as a multi-faceted word, and second, the social perception aspects of ‘conversation with artificial intelligence.’

사회적 구성주의 관점의 한국어 토론 수업 모형 : 학문 목적 학습자를 대상으로

이지용 중앙어문학회 2012 語文論集 Vol.50 No.-

Foreign students studying at colleges in Korea often experience difficulties. They experience language and cultural difficulties as well as difficulties in understanding lectures and interactions with other students. These difficulties are not only because of individual students’ lack of ability. To solve this problem, debate education is needed. Debate requires overall ability to communicate, think, and interact with others. This study analyzed the results of a survey targeting Korean and foreign college students and designed a model of debating class. In the model, a stage to deal with the content of the topic, which the learner finds difficult to understand during the debate, and a stage that is related to critical thinking, a method to deal with the content, are established. And to improve the effect of evaluation, peer evaluation is implemented during the debate and a stage to review peer evaluation from the evaluatee’s point of view is established. This debating class model for Korean learners for academic purpose is significant in that it increased the weight of topic and critical thinking ability that was slighted in the existing debate education and restructured the feedback method, which was evaluated to be not effective before, by reflecting the actual needs of Korean and foreign college students.

대학 교양 글쓰기 수업 방안 연구— 동료 피드백을 중심으로

이지용 중앙어문학회 2019 語文論集 Vol.80 No.-

대학 글쓰기 수업이 결과 중심의 수업에서 과정 중심의 수업으로 변화를 시작하면서 대학 글쓰기 교육 방법도 다양해지고 있다. 대학 글쓰기 교육 방법의 다양한 모습 중 하나의 예로 동료 피드백이 많이 사용되고 있다. 본고에서는‘동료 평가’라는 용어 대신에 ‘동료 피드백’이라는 용어를 사용하여 학습자들이 생각하는 평가의 부담을 인지적 차원에서라도 줄여주고자 한다. 동료 피드백은 용어 및 그 학습 효과에 대해서 의견이 다양하다. 이에 최근에는 동료 피드백의 효과를 입증하기 위한 실험연구가 많아지고 있다. 따라서 본 연구에서도 동료 피드백의 효과를 살피기 위해 교양 글쓰기 수업을 듣는 대학생들을 대상으로 동료 피드백이 학습자에게 끼치는 영향을 살피고자 한다. 또한 이를 통해 동료 피드백을 활용하기 위해 필요한 지침이 무엇인지도 연구 내용을 토대로 마련하고자 한다. 본 연구에서는 대학 교양 글쓰기 수업을 수강하는 학습자들을 대상으로 동료 피드백을 활용한 과정 중심 글쓰기 수업을 진행하였을 때나타나는 효과에 대해 분석하였다. 분석 내용은 글쓰기 자료에 대한 형식 요소와 내용 요소에 대한 피드백 결과였지만 이를 통해 학습자의 수업 태도가 글쓰기 능력에 영향을 줄 수 있다는 점을 확인하였다. With college writing classes transitioning from results-based to process-based, the methods of teaching college writing have also begun to diversify. One example of the various aspects of college writing teaching methods is peer feedback. In this study, we use the term “peer feedback” instead of “peer evaluation” to reduce the burden of evaluation that learners think about, even in terms of the cognitive aspect. Peer feedback differs with regard to its terms and their learning effects. Recently, experimental research to prove the effectiveness of peer feedback has been increasing. Therefore, this study aims to examine the effect of peer feedback on learners among college students who are taking liberal arts writing classes. In addition, this study aims to prepare the necessary guidance to utilize peer feedback based on the research. This study, thus, analyzed the effects of process-based writing classes using peer feedback for learners taking college writing classes. The contents of the analysis consisted of the formal and content elements of the writing materials, andit was confirmed that the attitudes of learners could influence their writing ability.

울릉도에서 알락할미새와 백할미새의 번식 생태

이지용,박진영,성하철 한국환경생태학회 2012 한국환경생태학회 학술대회지 Vol.2012 No.2

황체기능 평가에 관한 연구

이지용,장윤석,배광범,김정구,문신용 대한산부인과학회 1986 대한산부인과학회 학술대회 Vol.58 No.-

성인 자원자에서 생리식염수와 하트만씨 용액의 수분공간모형 비교

이지용 대한마취통증의학회 2007 Anesthesia and pain medicine Vol.2 No.4

Background: Changes in the volume of fluid space expanded by intravenous infusion of crystalloid solution have been analyzed using mathematical models. Crystalloids with similar osmolality would reveal no significant differences in distribution and elimination from the body. But each solution has different ionic composition, this can affect fluid volume kinetics. Therefore, we evaluated the fluid volume kinetics of normal saline and Hartmann’s solution. Methods: After infusion of 15 ml/kg of normal saline (n=5) and Hartmann’s solution (n = 4) over 30 min and measured a serial hemoglobin concentration. The changes were expressed as fractional dilution and then plotted against time. The curves were fitted to two-volume model using non linear least square fitting process. Results: Central and peripheral volume space were present. There were no significant differences between the two groups on central volume, peripheral volume and expansion ratio of fluid space per body weight and expansion ratio of peripheral volume. The expansion ratio of central volume was greater in Hartmann’s solution than normal saline from 25 min to 60 min after infusion. Hartmann’s solution expanded fluid space higher than normal saline on initial period. Conclusions: There were no significant differences in fluid kinetic parameters between normal saline and Hartmann’s solution. However, the volume expansion effect of Hartmann’s solution was more rapid than normal saline in early infusion period.

단일성 폐결절의 감별진단 : 단순흉부X선사진과 CT의 비교

이지용 대한영상의학회 1996 대한영상의학회지 Vol.35 No.5

Purpose : The purpose of this study was to compare the diagnostic accuracies of chest radiographs and chest CTin the diagnosis of a solitary pulmonary nodule(SPN), and to determine the role of CT and CT findings which aid inthe differential diagnosis of nodules. Materials and Methods : A retrospective study was done on 54 patients inwhom SPN was found on chest radiographs and chest CT was carried out. The study involved 25 benign and 29malignant nodules, confirmed histopathologically and clinically. Chest radiographs and CT scans were reviewedseparately in randomized order by two chest radiologists who for each film listed the three most likely diagnosesin descending order. The radiologists recorded the confidence value of the most probable diagnosis, and also themarginal and internal characteristics of nodules and their size, as nodules seen on chest CT scans. Results :Diagnostic rates in the differential diagnosis of benign and malignant nodules were 65.7% by radiography and 77.8% by CT. Correct first-choice diagnosis was by radiography in 30.6 % of cases, and by CT in 41.7%. Usingradiographs, and the correct diagnosis was among the top-three choices in 61.1% of cases ; with CT, thecorresponding figure was 76.8%. Overall, a confident diagnosis was reached more often with the CT(41.7%) than withthe chest radiograph(21.4%) ; diagnaotic accuracy was 60.0% and 52.2%, respectively. CT findings which imply abenign nodule include smooth margins and diffuse internal calcifications, whereas marginal lobulations, air-bronchograms, internal low density without cavitation, eccentric calcifications, and large size suggestmalignancy. We faund that CT findings such as well-defined margins, spiculations, pleural tail or internalhomogeneity did not contribute in the differentiation between benign and malignant nodules. Conclusion : CT issuperior to chest radiography in the differential diagnosis of the solitary pulmonary nodule. Using CT, diagnosiswas accurate and made with a high level of confidence, especially with the application of CT findings which aid inthe differential diagnosis of nodules.

Froude 수 변화에 따른 수제 하류 난류 흐름 측정

이지용,김영규,차준호,강석구 한국수자원학회 2019 한국수자원학회논문집 Vol.52 No.2

잠기지 않은 수제 하류의 3차원 흐름구조에 Froude 수 변화가 미치는 영향을 알아보기 위한 수리모형 실험을 수행하였다. 3가지 Froude 수 조건에 대하여 초음파 유속계와 수위계를 이용하여 3차원 유속과 수심을 측정하였다. Froude 수는 시간평균유속 및 난류 특성의 전반적인 분포에는 크게 영향을 미치지 않는 것으로 나타났다. 그러나 Froude 수가 증가할수록 수제 위치의 흐름단면이 감소하고 제트 흐름 강도의 증가가 관찰되었다. 이 제트 흐름은 단면 내 최대 난류에너지 발생의 위치를 안쪽 제방으로 이동시키는 것으로 나타났다. The effects of the Froude numbers on turbulent flow patterns downstream of a non-submerged spur dike were investigated in a laboratory flume. Three-dimensional velocities and water depths were measured using Acoustic Doppler Velocimetry and distance sensors under three Froude number conditions (Frd=0.31, 0.38, and 0.46). The results show that there are marginal differences in the velocity fields downstream of a spur dike due to the change of the Froude number. However, an increase of the Froude number was found to reduce cross-sectional area in the flow and to increase the strength of the jet-like flow. The jet-like flow was observed to displace the location of the maximum turbulence kinetic energy within a cross section toward the inner bank in the transverse direction.

사람 귀에서 나타나는 황금비율에 대한 조사

이지용,최병영,조병필,고기석,김희진,한승호 대한체질인류학회 2007 대한체질인류학회 학술대회 연제 초록 Vol.50 No.-