• Child Health Nursing Research
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• 제9권3호
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• pp.294-300
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• 2003

Purpose: The purpose of the study was to investigate the status of visual health behavior of school-age children and to identify the predicting variables of the school-age children's visual health behavior. Method: The subject was 764 children in grades 4 to 6, enrolled in 2 elementary schools located in urban area. The data were analyzed using t-test, ANOVA, correlation analysis, and stepwise multiple regression. Result: The findings were as follows: 1. The mean of the score of the visual health behavior of school-age children was 41.59(SD=7.22) and there was a significant difference according to grade. 2. There were significant correlations between visual health behavior and self-efficacy for visual health behavior (r=.51, p=.000), motivation for visual health(r=.45, p=.000), perceived benefits(r= .34, p=.000), self-concept(r=.32, p=.000), knowledge of visual health(r=.30, p=.000), health perception for vision(r=.16, p=.000), health locus of control(r=.11, p=.002), and perceived barriers(r=.-.12, p=.000). 3. Self-efficacy for visual health behaviors, knowledge of visual health, motivation for visual health, self-concept, health perception for vision, and perceived benefits were identified as predictor variables of the visual health behavior of the school-age children from the stepwise multiple regression analysis. The total percent of variance accounted by these 6 variables were 36.9％. Conclusion: From the result, it is suggested that the development of comprehensive visual health education program including the component of self-efficacy, health motivation and self-concept to promote the visual health of school-age children.

• 영어어문교육
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• 제9권2호
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• pp.71-90
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• 2003

The purpose of this study was to analyze the improvement of students' interest and general proficiency of English through cultural understanding. To achieve this purpose, two classes of the 2nd grade in the informational high school were divided into the experimental class and the control class. The Grammar-Translation Method was used for the control class and a cultural learning - compare and contrast Korean culture and American culture - was taken for the experimental. After various cultural differences were studied, surveys of students' attitude and reading and listening test were taken. The results from this study were as follows: Firstly, students' interest in English was improved through learning the American culture that was related to the content of each lesson. Secondly, English reading and communicative skills were improved by learning about cultural aspects. Therefore, it can be said that teaching culture stimulates students' interest and motivation for learning English and helps students retain such affective attitudes. And English communicative skills were improved as well.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2005년도 ICCAS
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• pp.1199-1201
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• 2005

In the synthetic aperture radar (SAR) system, the motion error is the main phase error sources and the motion compensation is very important. The phase gradient autofocus (PGA) is a state of art technique for phase error correction of SAR. It exploits the redundancy of the phase-error information among range bins by selecting the strongest scatter for each range bin and synthesizes them. The motivation of this paper is based on the observation that the redundancy of phase error is also among the cross-range direction. Moreover, the proposed method applies the weighting function to better utilize the phase error information. The validity of the proposed scheme for PGA is tested with some numerical simulation.

• 디지털융복합연구
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• 제11권12호
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• pp.829-834
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• 2013

본 연구에서는 수업에서 갖는 성취목표지향성과 자기조절학습전략이 학업성취에 미치는 영향에 대해 살펴봄으로써 효율적인 교수-학습방안을 모색하고자 하였다. 치위생과에 재학 중인 133명의 학생을 대상으로 설문조사를 실시하여 성취목표지향성과 자기조절학습전략의 평균과 표준편차, 성취목표지향성과 자기조절학습전략의 학업성취와의 관계를 분석하고, 성취목표지향성과 자기조절학습전략이 학업성취에 미치는 영향을 분석하였다. 연구결과로 학업성취도를 높이기 위해서는 성취목표지향성의 경향과 자기조절학습능력이 높을수록 학업성적이 높은 것으로 나타나 학생들의 학업성취도에 대한 동기조절훈련과 멘토링 학습을 통한 불안을 해소하고 적극적인 수업 참여 유도가 필요하다고 판단된다.

• 정보교육학회논문지
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• 제19권1호
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• pp.87-98
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• 2015

초등학교 로봇활용교육에서 여학생들의 경우 기계에 대한 부정적 태도와 인식 등으로 인하여 학습동기와 흥미를 유지하는 데 어려움이 따른다. 본 연구에서는 초등학교 여학생들을 위한 STEAM 기반 스토리텔링 로봇활용교육을 통하여 학습태도를 향상시키는 방안을 모색하였다. 교육과정은 여학생들에게 친근한 명작동화를 9개의 학습주제로 구성하였고 스마트폰을 활용하여 로봇설계, 제작, 학습토론, 공유할 수 있는 스마트 로봇교육지원시스템을 개발하였다. 학습태도에 대한 t-검증 결과, 실험집단이 통제집단보다 평균이 더 높았으며 설계된 시스템은 여학생들의 협력적 학습활동과 학습동기 지속에 효과적인 것으로 나타났다.

• 대한간호학회지
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• 제42권1호
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• pp.19-27
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• 2012

Purpose: This study examined the effectiveness of an Adolescent Motivational Interviewing Cessation program on smoking cessation change. The study was done with a nonequivalent control group pretest-posttest design. Methods: The participants were 39 high school students from G city, who were in school from September 1 to October 30, 2009. The students were assigned to the experimental group (20) and participated in the motivational interviewing cessation program or to the control group (19) who did not participate. Data analyses involved ${\chi}^2$-test, independent t-test, Repeated Measures ANOVA, and utilized the SPSS program. Results: The experimental group had significantly less daily smoking, nicotine dependence and smoking temptation in comparison to the control group. The experimental group had significantly higher stage of change in comparison to the control group. Conclusion: The results of the study indicate that a motivational interviewing cessation program delivered to adolescents who smoke is an effective method of encouraging cessation, and can be utilized as an effective nursing intervention for adolescents who smoke.

• The Journal of Korean Physical Therapy
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• 제29권2호
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• pp.74-79
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• 2017

Purpose: The purpose of this study was to compare the effects of the FES-gait with augmented feedback training to the FES alone on the gait and functional performance in individuals with chronic stroke. Methods: This study used a pretest and posttest randomized control design. The subjects who signed the agreement were randomly divided into 12 experimental groups and 12 control groups. The experimental groups performed two types of augmented feedback training (knowledge of performance and knowledge of results) together with FES, and the control group performed FES on the TA and GM without augmented feedback and then walked for 30 minutes for 40 meters. Both the experimental groups and the control groups received training five times a week for four weeks. Results: The groups that received the FES with augmented feedback training significantly showed a greater improvement in single limb support (SLS) and gait velocity than the groups that received FES alone. In addition, timed up and go (TUG) test and six minute walk test (6MWT) showed a significant improvement in the groups that received FES with augmented feedback compared to the groups that received FES alone. Conclusion: Compared with the existing FES gait training, augmented feedback showed improvements in gait parameters, walking ability, and dynamic balance. The augmented feedback will be an important method that can provide motivation for motor learning to stroke patients.

• 한국간호교육학회지
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• 제17권3호
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• pp.433-443
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• 2011

Purpose: This study aimed at (a) developing an instructional model of creative thinking education on the problem-based learning method (C-PBL) in undergraduate nursing curriculum at one University, and (b) examining its effect on nursing students' level of creativity and outcomes from problem-based learning. Methods: The C-PBL model was implemented on 43 juniors of the experimental group with a 30 hour-nursing class during one semester. The control group, with 54 seniors, received 4 hours of problem based learning training in an adult nursing class. Pre-and post-tests were done with the Torrance Tests of Creative Thinking for creative thinking ability, the Integrated Creativity Instrument for creative motivation and attitudes, the Problem Solving Competency questionnaire, and the Self-Directed Learning Instrument. Results: The C-PBL model was developed using a caring situation scenario to solve nursing problems with 3 training steps of 'encountering a patient in a caring situation', 'exploring nursing knowledge', and 'designing creative caring beyond given knowledge'. Between the experimental group and the control group, there were significant differences in creativity (p<.010), problem-solving ability (p<.010), and self-directed ability (p<.010). Conclusion: This C-PBL method could contribute in increasing creative competency as well as problem-solving ability for nursing students.

• 한국컴퓨터정보학회논문지
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• 제11권1호
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• pp.119-128
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• 2006

기존에 제작되어 현재 운영되고 있는 웹기반 코스웨어들은 개인의 수준들을 적절하게 적용하지 못하고 있다. 본 논문은 학습자 개개인이 직접 학습내용, 학습목표, 학습 범위로 수업내용을 구성할 수 있으며 구성한 학습내용을 직접 압축하여 코스웨어에서 실행할 수 있도록 설계하였다. 미리 짜여진 선형학습방식이 아닌 선택성을 부여한 학습방법으로 지속적인 학습의 동기가 유발되고 학습방법을 유지할 순 있으며 학습내용을 구성하여 각자의 능력을 최대한 발휘하여 자신의 흥미와 욕구에 맞는 학습이 가능하다. 그러므로 학습방식에 대한 높은 만족도와 학습내용에 대한 학업성취도를 극대화시킬 수 있었다.

• Journal of Power Electronics
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• 제17권1호
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• pp.212-221
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• 2017

Permanent-Magnet Synchronous Generators (PMSGs) are used widely in Wind Power Generation Systems (WPGSs), and the Vienna rectifier was recently proposed to be used as the generator-side converter to rectify the AC output voltage in PMSG-based WPGS. Compared to conventional six-switch two-level PWM (2L-PWM) converters, the Vienna rectifier has several advantages, such as higher efficiency, improved total harmonic distortion, etc. The motivation behind this paper is to verify the performance of direct-driven PMSG wind turbine system based-Vienna rectifier by using a simulated direct-driven PMSG WPGS. In addition, for the purpose of reducing the reactive power loss of PMSGs, this paper proposes an induced voltage sensing scheme which can make the stator current maintain accurate synchronization with the induced voltage. Meanwhile, considering the Neutral-Point Voltage (NPV) variation in the DC-side of the Vienna rectifier, a NPV balancing control strategy is added to the control system. In addition, both the effectiveness of the proposed method and the performance of the direct-driven PMSG based-Vienna rectifier are verified by simulation and experimental results.