• 제목/요약/키워드: Class E

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게임제작 실습 교과목에서 활용할 수 있는 비대면 교육방법 연구 (A Study on Non-face-to-face Educational Methods which can be used in Practical Subject of Game Production)

  • 박선하
    • 한국멀티미디어학회논문지
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    • 제24권1호
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    • pp.125-133
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    • 2021
  • Due to Covid-19, the un-contact culture has affected society as a whole, and the methods of education conducted offline has been greatly affected. In the private education of preparing for university entrance, the public official examinations and certification acquisition, the method of online education has been shown to have positive effects. While private class and school class which have offered in off-line to cope with rapid changes caused various problems such as decline in quality for education. Due to the characteristic of design class, practical training is important. As interactive feedback between students and educators is more important than one-way of delivering knowledge while class is conducted in online, educators have a challenge when they prepare for class. This study handles the methods of online education for the purpose of practical education methods in university nowadays, Especially, the non-face-to-face education methods for game animation production. Based on this study, I propose an effective educational method with non-face-to-face class that allows students to be satisfied and increases their knowledge, beyond face-to-face class.

Relationship between Class III malocclusion and hyoid bone displacement during swallowing: a cine-magnetic resonance imaging study

  • Gokce, Sila Mermut;Gokce, Hasan Suat;Gorgulu, Serkan;Karacay, Seniz;Akca, Eralp;Olmez, Huseyin
    • 대한치과교정학회지
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    • 제42권4호
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    • pp.190-200
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    • 2012
  • Objective: The displacement of the hyoid bone (HB) is a critical biomechanical component of the swallowing function. The aim of this study was to evaluate the swallowing-induced vertical and horizontal displacements of the HB in subjects with 2 different magnitudes of skeletal Class III malocclusion, by means of real-time, balanced turbo-field-echo (B-TFE) cine-magnetic resonance imaging. Methods: The study population comprised 19 patients with mild skeletal Class III malocclusion, 16 with severe skeletal Class III malocclusion, and 20 with a skeletal Class I relationship. Before the commencement of the study, all subjects underwent cephalometric analysis to identify the nature of skeletal malformations. B-TFE images were obtained for the 4 consecutive stages of deglutition as each patient swallowed 10 mL of water, and the vertical and horizontal displacements of the HB were measured at each stage. Results: At all stages of swallowing, the vertical position of the HB in the severe Class III malocclusion group was significantly lower than those in the mild Class III and Class I malocclusion groups. Similarly, the horizontal displacement of the HB was found to be significantly associated with the severity of malocclusion, i.e., the degree of Class III malocclusion, while the amount of anterior displacement of the HB decreased with an increase in the severity of the Class III deformity. Conclusions: Our findings indicate the existence of a relationship between the magnitude of Class III malocclusion and HB displacement during swallowing.

한국 젊은이의 안면미 선호경향에 관한 연구 : 얼굴의 측모평가를 중심으로 (A STUDY ON THE FACIAL ESTHETIC PREFERENCES AMONG KOREAN YOUTHS: ASSESSMENT OF PROFILE PREFERENCES)

  • 송세진;최익찬
    • 대한치과교정학회지
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    • 제22권4호
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    • pp.881-920
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    • 1992
  • This study was designed to assess profile preferences among Korean youths in the year 1992. Facial esthetics was evaluated by means of silhouette profiles, eliminating the influence of a number of aspects that may affect judgment when normal lateral photographs are used. The main points of preference to be clarified here are as follows. First, on facial convexity, Second, on nasion depth, Third, on mentolabial sulcus depth, Fourth, on the position of upper and lower lips, Fifth, on facial type according to Angle's classification of malocclusion, Sixth, on Song's tangents. The 54 subjects printed in questionnaire as black and white silhouettes were selected from 300 tracings from cephalometric radiographs of people whose age ranging from 11 to 20 years. Photographs of six female subjects were retouched by computer graphic software and printed in color and black/white photographs which were used for adaptation of eyes of participants in selecting profiles in silhouette. They constitute 2 questions. The 54 subjects were grouped as 22 questions, each of them composed of 6 subjects, according to the aspects to be clarified. Twenty four questions in total were asked to assess profile preferences. For the assessment, the profile line, the facial esthetic triangle, Song's tangents, and Angle's classification of malocclusion were introduced. The profile line is composed of 11 component points which are Trichion, Glabella, Nasion, Pronasale, Subnasale, Labrale superius, Stomion, Labrale inferius, Supramentale, Pogonion, and Gnathion. The facial esthetic triangle is composed of 3 tangents: A-tangent which is the tangent of dorsum of nose, B-tangent which is the line passing through Sn and Ls, and C-tangent which is drawn on the turning point of the curve which lies between mentolabial sulcus (Sm) and pogonion (Pg). Angle's classification has 3 types of malocclusion which are Class I, Class II, and Class III. Class II malocclusion is subdivided into Division 1 and Division 2. The participants of the survey were composed of 861 college students (448 male students, 413 female students) whose majors grouped as Fine Arts. Liberal Arts, and Natural Sciences, and whose mean age 21.8 years. The statistics program SPSS/PC + of SPSS Inc. was used to analyze answers of participants. Crosstabulation, Chi-square test, and Kendall test were done. The conclusions are as follows: First, Korean youths have a tendency to prefer the slightly convex face to the flat or concave face. Second, they prefer a moderately deep nasion. Third, they prefer a moderately deep mentolabial sulcus. Fourth, they prefer the position of lips which are near to Ricketts' E-line. The position of the upper lip which is slightly posterior to E-line is preferred. The upper lip which lies too far anterior or posterior to the lower lip is not perferred. Fifth, they prefer most, according to Angle's Classification of Malocclusion, Class I facial profile which has a slight inclination to Class II division 2. The order of preference is Class I, Class II division 2, Class III, and Class II division 1. Sixth, they prefer the type 2 and 3 of Song's tangents. The facial profile within which A-and B-tangent meet is preferred. The facial profile which has Cotangent that .meets with A-tangent slightly posterior to the crossing point of A-and B-tangent or that parallels with B-tangent is preferred.

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사회 계층에 따른 가치 차이: 자기 참조 가치 대 문화 참조 가치 (Value differences by social class: Self-referenced values versus culture-referenced values)

  • 전혜빈;박혜경
    • 한국심리학회지 : 문화 및 사회문제
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    • 제24권4호
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    • pp.563-592
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    • 2018
  • 본 연구에서는 사회 계층에 따라 스스로 중요하게 여기는 가치(자기 참조 가치)와 일반적인 한국인들이 중요하게 여길 것이라고 지각하는 가치(문화 참조 가치)가 다른지 살펴보았다. 연구 1에서는 세계가치관조사 6차 한국 자료를 통해 19세 이상인 남녀 1,140명의 사회 계층에 따른 자기 참조 가치 중요도를 살펴보았다. 그 결과, 사회 계층이 높을수록 박애와 쾌락주의를 더 중요시하였고, 보편주의와 전통을 덜 중요시하는 것으로 나타났다. 연구 2에서는 일반적인 한국인들이 중요하게 여길 것이라고 지각하는 가치에 대해 묻는 문화 참조 질문지를 추가하여, 자기 참조 가치와 문화 참조 가치에 있어 사회 계층에 따른 차이를 살펴보았다. 그 결과, 사회 계층이 높을수록 개인주의적인 가치 영역(권력, 성취)이 자신에게 더 중요하다고 응답한 반면, 연구 1의 결과와 마찬가지로 보편주의는 덜 중요하다고 응답하였다. 이와 반대로, 문화 참조 가치와 관련해서는 사회 계층이 높을수록 일반적인 한국인들이 개인주의적인 가치 영역(자기주도성, 쾌락주의)을 덜 중요하게 여기고, 집단주의적인 가치인 전통을 더 중요하게 여길 것이라고 응답하였다. 이는 사회 계층에 따라 스스로 중요하게 여기는 가치와 자신의 문화에서 중요하게 여겨진다고 지각하는 가치가 다르다는 점을 보여준다. 이러한 결과들을 토대로 사회 계층에 대한 문화심리학적 연구의 필요성과 문화를 측정함에 있어 문화 참조 접근이 가지는 함의를 논하고 후속 연구 방향을 제시하였다.

기술수용모델을 이용한 사이버강의 수용의 영향요인 (A Study on Factors Affecting the Acceptance of E-Learning Class Using Technology Acceptance Model)

  • 장정무;김태웅;이원준
    • 기술혁신연구
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    • 제12권3호
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    • pp.1-24
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    • 2004
  • E-Learning is another way of teaching and learning. E-learning is a networked phenomenon allowing for instant revisions and distribution, and goes beyond training and instruction to the delivery of information and tools to improve performance. The benefits of e-learning are many, including cost-effectiveness, enhanced responsiveness to change, consistency, timely content, flexible accessibility, and providing customer value. The proponents of e-learning stress the importance of using communities of interest to support and enhance the learning process. They also emphasizes that people learn more effectively when they interact and are involved with other people participating in similar endeavors. Although the role of e-learning in higher education has significantly increased, the resistance to new technology by professors and lecturers in university and colleges worldwide remains high. The purpose of this study is to identify the determinants of attitude and planned behavior toward e-learning class in universities. A survey methodology was used to investigate a proposed model of influence, and structural equation modeling was used to analyze the results. The hypothesized model was largely supported by this analysis, and the overall results indicate that attitude toward e-learning systems is mostly influenced by the perceived ease of use as well as the level of perceived usefulness, where both factors are influenced by years of experiences in using cyber system and the technical support level. As in other TAM related research, it can be concluded that the perceived ease of use and perceived usefulness contribute to the future use of e-learning system.

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전자메일 기반의 고객관계관리(CRM) 시스템 개발에 관한 연구 (A Study on the Development of Electronic Mail-based Customer Relationship Management System)

  • 김승욱;양광민
    • Journal of Information Technology Applications and Management
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    • 제10권4호
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    • pp.51-63
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    • 2003
  • This study designs and implements a new approach to the classification of e-mail requests from customer based on machine learning techniques. The work on building an electronic mall classifier can be cast into the framework of text classification, since an e-mail is a viewed as a document, and judgement of interest is viewed as a class level given to the e-mail document. It is also implemented an e-mall based automated response system that integrate with Call Center in a practical use.

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레이다 신호의 클래스 분리도 측정을 위한 연구 (Study on Class Separability Measure for Radar Signals)

  • 정성재;이승재;김경태
    • 한국전자파학회논문지
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    • 제29권2호
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    • pp.128-137
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    • 2018
  • 본 논문에서는 레이다 신호를 위한 새로운 클래스간 분리도 측정 방법을 제시한다. 제안된 방법에서는 표적과 레이다 간의 상대적 각도 차이의 따른 레이다 신호의 민감도를 감소시키기 위해 RCS(radar cross section)의 경우 두 신호의 상관계수(correlation coefficient)를 구하고, 1차원 신호의 경우(i.e., high resolution range profile(HRRP)) 선형이동을 하며 상관계수를 구한다. 2차원 레이다 신호(i.e., inverse synthetic aperture radar(ISAR))의 경우 두 레이다 신호를 회전하면서 상관계수를 계산한다. 그런 다음, 두 레이다 신호가 가장 잘 배열되었을 경우의 최대 상관계수를 구하고, 이를 이용해 새로운 형태의 상관 기반 분리 행렬을 구성한다. 상관 기반 분리 행렬의 누적분포함수를 구하여 상위 확률에 응답하는 값을 구하였고, 그 값은 레이다 신호의 분리 능력을 정확하게 나타낸다. 제안한 방법을 이용한 실험 결과, 표적 분리 능력을 정확하게 추정할 수 있었다.