• International Journal of Computer Science & Network Security
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• 제22권9호
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• pp.396-402
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• 2022

The study deals with the problem of the formation of pre-service teachers' reflective skills in information environment. The role of reflection as a mechanism of formation of a modern teacher's self-consciousness was cleared up. The technology of formation of pre-service teachers' reflective skills was characterized and tested. The main stages of the technology were: a motivational and cognitive stage, a problematic and practical stage, and a reflective and operational stage. The substantiated pedagogical conditions of formation of pre-service teachers' reflective skills were adhered. The criterial and evaluative characteristics of the formation of pre-service teachers' reflective skills were worked out: components (reflection of personal conformity, reflection of the psychological and pedagogical barriers, reflection of professional growth); criteria (criterion of consistency, criterion of difficulty, criterion of potential); indicators (cognitive-evaluative, value-motivational, activity-creative). The levels of formation of pre-service teachers' reflective skills (insufficient level, acceptable level, and optimum level) were determined. The analysis of students' surveys showed the effectiveness and expediency of using the technology of formation of pre-service teachers' reflective skills in the process of professional training.

• 대한치과기공학회지
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• 제23권2호
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• pp.189-202
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• 2002

A study on reflective spectrum between In-Ceram alumina plate(IAP) and IPS empress 2 plate were carried out in order to determine the difference of reflective spectrum rates between materials and between thicknesses of materials(0.8mm, 1.0mm, 1.2mm) by visible wave. The rates are measured by spectrophotometer(Top scan model TC-1800). And an analysis of ANOVA and paired sample t-test were carried out. The results are summarized as follows. 1. The reflective rates of IAP and IPS increased slowly as visible wave spectrum increased. 2. The difference of reflective rates of IAP between 0.8mm and 1.0mm is significant but a little(less than 1%). The differences of reflective rates of IAP between 0.8mm and l.2mm and between 1.0mm and l.2mm are significant(8%, 10% ). 3. The differences of reflective rates of IPS between 0.8mm and 1.0mm and between 0.8mm and 1.2mm and between 1.0mm and 1.2mm are significant(0.06 %, 0.01 %, 2 %). 4. The differences of reflective rates of 0.8mm, 1.0mm between IAP and IPS are significant but a little(less than 0.9%, 0.5%). The difference of reflective rates of l.2mm between IAP and IPS is significant and larger than the other thicknesses relatively(7 %).

• 과학교육연구지
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• 제33권1호
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• pp.133-141
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• 2009

이 연구에서는 예비 과학교사들이 작성한 웹기반 반성저널을 분석하였다. 예비 과학교사들에게 4주간의 실습 기간 동안 매주 최소한 2개 이상의 반성저널을 웹 게시판에 작성하도록 안내하였다. 최종적으로 23명의 예비 과학교사가 작성한 307개의 웹기반 반성저널을 분석대상으로 선정하여, 주제 영역과 반성적 사고 수준을 분석하였다. 반성저널은 대부분 수업 준비나 자신의 수업에 대한 성찰과 같이 과학 수업 활동과 관련된 것들이었으며, 실습 진행에 따라 점차 빈도가 증가하였다. 과학 수업 활동과 직접적으로 연관이 있는 179개의 반성저널의 반성적 사고의 수준을 분석한 결과, 반성적 사고가 포함된 반성저널은 53개(29.6%)였는데, 상위 수준의 반성적 사고(전문적 반성과 비판적 반성)는 매우 적었지만, 상당수의 예비교사들이 웹기반 반성저널 쓰기 활동이 자신의 수업을 되돌아보고, 교육실습 활동의 기록을 남기는 데 도움이 된다고 인식하였다.

• 한국지구과학회지
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• 제28권1호
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• pp.1-13
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• 2007

이 연구는 고등학교 지구과학 탐구활동에서 2가지 수업유형에 따라 나타나는 학생들의 반성적 탐구의 특징을 알아봄으로써 수업의 맥락에서 학생들의 반성적 탐구의 실제를 이해하고, 탐구활동 수업에서 반성적 탐구를 촉진하기 위한 시사점을 얻고자 하였다. 기존의 탐구활동수업과 본 연구에서 개발한 반성적 탐구활동수업에서 반성적 탐구의 차이를 조사한 결과 반성적 탐구를 촉진하기 위해 개발된 반성적 탐구활동수업은 자료맥락의 다양한 요소와 연결된 반성적 탐구진술이 많아, 반성적 탐구의 양적 및 다양성의 측면에서 학생들의 반성적 탐구에 긍정적인 효과가 있었다. 이러한 결과로부터 학생들의 반성적 탐구를 활성화시키는 탐구활동 수업개발의 시사점을 얻을 수 있었다.

• 실천공학교육논문지
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• 제15권2호
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• pp.485-494
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• 2023

The purpose of this study was to examine the relationship between writing self-efficacy and academic achievement in a project-based university writing class, and the mediating effect of reflective journal writing. A total of 135 college students participated in the study. The results showed that students with higher writing self-efficacy had higher academic achievement and wrote more reflective journaling. Reflective journaling was found to have a positive impact on reviewing learned content, improving metacognition and memory, and promoting idea development. Overall, consistent reflective journal writing not only enhanced writing self-efficacy but also positively influenced academic performance.

• 한국보육지원학회지
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• 제16권5호
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• pp.127-154
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• 2020

Objective: This study aimed to show and analyze the flow, content, and meaning of (prospective) early childhood educators reflective thoughts entailed in the process of planning, implementing and evaluating storybook reading by analyzing reflective journals written by technical college students enrolled in an advanced major curriculum after they completed a storybook reading assignment. Methods: The subjects of this study were 39 technical college students enrolled in an advanced major curriculum that participated in a 15-week-long 'storybook seminar' course. This study analyzed journals on storybook reading written by the students as an assignment for the storybook seminar course. Results: As a result, four categories of selecting a storybook, planning the reading of the selected storybook, actual reading of the storybook and subsequent activities were extracted according to the implementation process of storybook reading. Through this series of experiences, (prospective) early childhood educators had a childt-centered view of reading picture books, changed the method of reading picture books, re-recognized the importance of early childhood literature education, and developed a will to develop professionalism through reflective thinking. Conclusion/Implications: This study finds its meaning in showing the reflective thinking that occur within early childhood educators that plan, implement and evaluate storybook reading.

• 농업과학연구
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• 제49권3호
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• pp.521-529
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• 2022

This study evaluated the effects of agricultural reflective film and HANSPEK film on the fruit quality attributes and peel color variables of 'Fuji' apples. The reflective films were applied under the tree canopies at 20 and 30 days before harvest (DBH), and a tree with no films was used as the control. Depending on the measurement locations, the light intensity was 7.4 - 14.6% higher in the reflective film treatments than that of the control. However, no difference in the light intensity was observed between the reflective and HASPEK films. In addition, the light intensity was not also different between the 20 and 30 DBH. At harvest, the flesh firmness, fruit weight, soluble solids content, titratable acidity, and internal ethylene concentration were not different regardless of the type of reflective film and treatment time. In addition, the peel color variables were not affected in the equatorial region. However, in the calyx region, the L* and b* values were decreased, and the a* value was increased by the reflective and HANSPEK films compared with the control. Hence, the hue angle was decreased to near 0^o (red), and the peel color was improved. Therefore, this study suggests that the application of the HANSPEK film under a tree canopy could improve the fruit peel color of 'Fuji' apples.

• 한국간호교육학회지
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• 제15권2호
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• pp.194-204
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• 2009

Purpose: Level of reflective thinking of students are important factors in the area of nursing studies on web-based PBL. These factors were used as a component of learning strategies. One was to understand general recognition to web-based PBL and reaction to the use of reflective journal. The other was to investigate the level of reflective thinking was related to learning activity. Method: PBL was adopted for an online course titled 'Nursing Assessment and Intervention'. Twenty graduate students were evaluated from questionnaire, reflective journals, and individual assignments. Result: Web-based PBL was strong for self-directed learning, team activity, creative thinking, diversity of thinking, and diverse process of learning while hard time, lack of cooperation, uncertainty of outcome, and lack of time were considered as weakness. Reflective journal gave moderate help to learning activities. The learners' learning activities was the lowest in the middle level of reflective thinking. Conclusion: Generally, graduate students in college of nursing showed slightly positive attitude to PBL experience and slightly positive reaction to the learning effect of reflective journal. PBL was estimated to be valuable and meaningful. There was no relationship between the level of reflective thinking and learning activities.

• 한국전기전자재료학회논문지
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• 제16권2호
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• pp.131-137
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• 2003

We have performed computer simulation to obtain electro-optic chracteristics of reflective liquid crystal display (LCD) using wide viewing angle LC mode, fringe field switching(FFS). Unlike other reflective LCD modes, in the FFS mode, the LC director in plance so an application to reflective display consisted of polarizer, LC layer and reflector is possible. when an incident light is 550mm, the optimal cell retardation value is 0.1365${\mu}$m and the efficiency of reflectivity is high over 90% with very little wavelength dispersion. Further, we have studied a new reflective display with polarizer, optical compensation film with half plate, LC plus reflector. The display with optimized cell parameters shows high contrast ratio (CR) over 130 with high light efficiency over 90% at normal direction and the CR greater than 5 exists over 60$^{\circ}$ of polar angle in all directions.

• 반도체디스플레이기술학회지
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• 제21권3호
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• pp.130-134
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• 2022

An anti-reflective coating is used to improve the performance of the solar cell. The anti-reflective coating changes the value of the short-circuit current about the thickness. However, the current-voltage characteristics about the anti-reflective coating are difficult to calculate without simulation tool. In this paper, a modeling technique to determine the short-circuit current value and the current-voltage characteristics in accordance with the thickness is proposed. In addition, artificial neural network is used to predict the short-circuit current with the dependence of temperature and thickness. Simulation results incorporating the artificial neural network model are obtained using MATLAB/Simulink and show the current-voltage characteristic according to the thickness of the anti-reflective coating.