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- 저자 : 이지혜(Lee JiHye) (검색결과 192 건)
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액션러닝 기반 온라인 실습이 간호대학생의 자기주도적 학습능력, 학업적 자기효능감과 협업능력에 미치는효과
이지혜,한미라,Lee, Jihye,Han, Mira 국제문화기술진흥원 2022 문화기술의 융합 Vol.8 No.6
The purpose of this study was to identify the effects of online practicum based on action learning on self-directed learning ability, academic self-efficacy, and cooperation ability of nursing students. Similar experimental study of single group pre-post test design was used to investigate the effects of this online class. A total of 47 nursing students who were junior grade from one college participated in this study and self-administered questionnaire was used for data collection. Data were analyzed by frequencies, paired t test using the SPSS/Window 21.0 program. The result of this study showed that the improvement after online practicum based on action learning was significant in self-directed learning ability(t=3.832, p<.001), academic self-efficacy(t=4.258, p<.001), and cooperation ability(t=3.853, p<.001). These findings imply the value of online practicum based on action learning to enhance competency of nursing students. In the future, more studies should be conducted in the same group including control group and blended learning method using action learning to validate the effectiveness.
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MODIS 전천후 기상자료 기반의 생물리학적 벼 수량 모형 개발
이지혜,서범석,강신규,Lee, Jihye,Seo, Bumsuk,Kang, Sinkyu 대한원격탐사학회 2017 대한원격탐사학회지 Vol.33 No.5
With the increasing socio-economic importance of rice as a global staple food, several models have been developed for rice yield estimation by combining remote sensing data with carbon cycle modelling. In this study, we aimed to estimate rice yield in Korea using such an integrative model using satellite remote sensing data in combination with a biophysical crop growth model. Specifically, daily meteorological inputs derived from MODIS (Moderate Resolution imaging Spectroradiometer) and radar satellite products were used to run a light use efficiency based crop growth model, which is based on the MODIS gross primary production (GPP) algorithm. The modelled biomass was converted to rice yield using a harvest index model. We estimated rice yield from 2003 to 2014 at the county level and evaluated the modelled yield using the official rice yield and rice straw biomass statistics of Statistics Korea (KOSTAT). The estimated rice biomass, yield, and harvest index and their spatial distributions were investigated. Annual mean rice yield at the national level showed a good agreement with the yield statistics with the yield statistics, a mean error (ME) of +0.56% and a mean absolute error (MAE) of 5.73%. The estimated county level yield resulted in small ME (+0.10~+2.00%) and MAE (2.10~11.62%),respectively. Compared to the county-level yield statistics, the rice yield was over estimated in the counties in Gangwon province and under estimated in the urban and coastal counties in the south of Chungcheong province. Compared to the rice straw statistics, the estimated rice biomass showed similar error patterns with the yield estimates. The subpixel heterogeneity of the 1 km MODIS FPAR(Fraction of absorbed Photosynthetically Active Radiation) may have attributed to these errors. In addition, the growth and harvest index models can be further developed to take account of annually varying growth conditions and growth timings.
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소아 청소년에서 하악공 및 하악소설의 위치에 대한 CBCT 분석
이지혜,최남기,김병기,김선미,Lee, Jihye,Choi, Namki,Kim, Byunggee,Kim, Seonmi 대한소아치과학회 2021 대한소아치과학회지 Vol.48 No.1
The purpose of this study is to evaluate the position of the mandibular foramen and location and morphological characteristics of the mandibular lingula using Cone-Beam Computed Tomography (CBCT). Mandibular CBCT images of children aged 6 - 16 years were collected. A total of 180 patients were divided into 3 groups, 6 - 7, 10 - 11 and 15 - 16 years, with 30 male and female patients per group. Either side of the ramus was analyzed. The shortest distances from the anterior, posterior, superior and inferior border of the ramus to the mandibular lingula were measured. The shortest distance between the mandibular lingula and the mandibular foramen was also measured. The vertical distance from the mandibular lingula and the mandibular foramen to the occlusal plane was measured. The shapes of the mandibular lingula was classified into 4 types according to the criteria. The distances of the mandibular lingula from the anteroposterior and vertical reference points of the ramus increased in all directions with age. The distance between the mandibular lingula and the mandibular foramen also increased with age. The location of the mandibular lingula and the mandibular foramen in relation to the occlusal plane moved upwards with age. The most common shape of the mandibular lingula was triangular, followed by nodular, truncated and assimilated, and there was no difference in the shape according to age. It is recommended that the horizontal insertion point of the anesthesia from the anterior border of the ramus increased to 17 mm, 18 mm, and 19 mm according to the age groups. It is also suggested that the vertical insertion point increased by 2 - 3 mm, 5 - 6 mm and 9 - 10 mm above the occlusal plane according to the age groups.
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굴삭기 전기동력시스템의 동작점 제어 알고리즘에 관한 연구
이지혜(Jihye Lee),이지호(Jeeho Lee),오창은(Chang Eun Oh),이형철(Hyeongcheol Lee) 한국자동차공학회 2013 한국자동차공학회 부문종합 학술대회 Vol.2013 No.5
This paper presents an optimal operation point control algorithm for a hydraulic pump and an electric motor in an electric excavator system. The system consists of a hydraulic pump and a motor: the one delivers the power to hydraulic actuators and the other conveys the power to the hydraulic pump. The system requires an operating point control with efficiency maps of the motor and the hydraulic pump respectively because the efficiency feature of the system is different from that of conventional diesel engine excavator. In this paper, an integrated efficiency map is derived from each efficiency map of the motor and the hydraulic pump. Operation points are produced where the integrated efficiency is the maximum under the same power and the same pressure condition. An optimal operating point control algorithm of the electric-hydraulic system is proposed and simulations are performed through the MILS (Model-In-the-Loop Simulator). The efficiency of this system is improved compared with that of the uncontrolled electric-hydraulic system.
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이지혜(Jihye Lee),이재훈(Jaehoon Lee),마충제(Choongje Ma),마진열(Jinyeul Ma) 한국한의학연구원 2009 한국한의학연구원논문집 Vol.15 No.1
In this study, we investigated the single dose toxicity and safety about water-extracted Galgeuntang. To evaluate single dose toxicity, 20 male and 20 female ICR mice were observed survival rates, general toxicity, changes of body weight for 14 days after single oral administration of 0 (control group), 1250, 2500 and 5000 ㎎/㎏ Galgeuntang. And after 14 day, We observed autopsy. Compared with the control group, we could not find any toxic alteration in all treated groups (1250, 2500 and 5000 ㎎/㎏). LD50 of Galgeuntang might be over 5000 ㎎/㎏ and it is very safe to ICR mice.
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대학 교양 음악 교육의 필요성과 교육방향 : 체험중심의 음악교육
이지혜(Lee, JiHye) 목원대학교 교양교육혁신연구센터 2021 지식과 교양 Vol.- No.8
본 연구는 대학 교양교육에서 음악교육이 가지는 중요성과 기존과는 다른 체험중심의 교육이 어떻게 구성되는지에 대한 사례로서 2015-2018년까지 시행된 <레드바이올린>이란 강의가 주차별로 어떻게 진행 되었는지에 대해 살펴보았다. 이론과 실기를 적절하게 배합하여 바이올린을 배워가는 과정을 통해 학생들은 피상적인 지식이 아닌 음악이란 예술을 직접 느낄 수 있는 체험교육의 긍정적인 효과를 알아보았다. 바이올린을 배우고 연습하고 연주를 준비하는 과정을 통해 학생들은 집중력과 인내심, 앙상블을 통한 소통능력, 무대매너, 표현성 다양한 측면의 성장을 경험했다. This is a case study of the importance of music education in university liberal arts education and how an experience-oriented education that differs from the existing methods of education is composed. Through the course of learning the violin by appropriately combining theory and practice, the students found the positive effect of experiential education that allows them to directly feel the art of music rather than acquiring superficial knowledge. Through the process of learning, practicing, and preparing for the concert, students have developed concentration and patience, in addition to communication skills, stage manners and expressiveness through ensemble interaction.
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모바일 쇼핑 앱 다크 패턴 디자인이 사용자 경험에 미치는 영향 : 조절 초점 성향별 감정 반응을 중심으로
이지혜(Lee Jihye),윤재영(Jaeyoung Yun) 한국HCI학회 2023 한국HCI학회 논문지 Vol.18 No.4
Along with the increase in mobile shopping, dark patterns that induce irrational purchases by intentionally manipulating user behavior are appearing. In 2021, about 50% of e-commerce traders will experience damage from dark pattern design, increasing the severity. Therefore, in this study, we want to check whether there is a difference in user experience according to the domestic mobile shopping dark pattern design. And it checks whether there is an interaction with the regulatory focus that influences the consumers decision-making. To this end, qualitative and quantitative data were collected through experiments using prototypes and in-depth interviews, and verified through one-way ANOVA and two-way ANOVA. As a result of the study, there was a significant difference in user experience depending on the mobile shopping dark patterns. In addition, the mobile shopping dark pattern design showed a significant difference only in the deception according to the regulatory focus. In the in-depth interview, it was confirmed that users had negative experiences due to dark patterns, and were careful not to do inefficient shopping even if they felt uncomfortable because they were accustomed to it. IT industry workers have ethical dilemmas while developing dark patterns and experiencing it as consumers. Accordingly, it was discussed that companies need to provide more ethical and user-friendly services. This study is significant in that it arouses awareness of dark patterns, verifies the interaction between dark patterns and regulatory focus, and conducts empirical studies.
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