• 한국지구과학회지
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• 제25권5호
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• pp.327-335
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• 2004

본 연구는 초등학교 과학과 문제중심학습에서 협동기술 훈련의 효과를 밝히기 위하여 통제집단, 문제중심학습 집단, 협동기술 훈련을 한 문제중심학습 집단의 학습능력 수준에 따라 과학 성취도와 자아존중감을 조사하였다. 본 연구의 결과, 학습능력이 높은 학습자는 협동기술 훈련에 무관하게 문제중심학습이 전통적 수업보다 효과적인 것으로 나타났다. 학습능력이 중간인 학습자와 낮은 학습자는 협동기술 훈련을 한 경우, 전통적 수업 집단보다 과학 성취도가 높게 나타났다. 이로써 협동기술 훈련이 학습능력이 중간 이하인 학습자에게서 발생하는 무임승객효과를 줄이고 소집단활동의 협력적인 상호작용에 긍정적인 영향을 미치는 것으로 밝혀졌다. 자아존중감은 문제중심학습 집단이 통제 집단에 비해 유의미하게 높게 나타났고 학습능력에 따른 상호작용 효과는 없었다.

• 대한간호학회지
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• 제40권2호
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• pp.151-160
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• 2010

Purpose: The purpose of this study was to evaluate the effects of teaching method using Standardized Patients (SPs) on nursing competence, self-directed learning readiness, and problem solving ability-focusing on subcutaneous insulin injection. Methods: This research was a nonequivalent control group non-synchronized post-test design. The subjects consisted of 62 junior nursing students at E University. Scenarios to train SPs and checklists to evaluate the students' competence were developed by our research team. The experimental group (n=31) participated in the teaching class using SPs. The control group (n=31) received traditional practice education. The collected data were analyzed with descriptive analysis, $\chi^2$/Fisher's exact test, t-test, Pearson's correlation coefficient, and Cronbach's $\alpha$ using SPSS WIN 14.0 Program. Results: The mean scores of competence, self-directed learning readiness, and problem solving were significantly higher in the experimental group than the control group. Conclusion: As confirmed by this research findings, the teaching method using SPs was more effective than the traditional method to improve junior nursing students' competence, self-directed learning readiness, and problem solving. Therefore, It is necessary to develop a various of scenarios and to testify their effectiveness.

• 디지털콘텐츠학회 논문지
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• 제11권3호
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• pp.349-356
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• 2010

본 연구는 직업교육의 내실화를 위하여 교수·학습능력 신장에 기초가 되는 직업기초능력 향상 프로그램 및 콘텐츠 개발에 그 목적이 있다. 특히, 직업기초능력 영역 중 e-Learning 콘텐츠로 개발하였을 때 효과적일 것으로 관련전문가들이 합의한 자기개발능력을 개발하였다. 자기개발능력은 업무를 추진할 때 스스로를 관리하고 개발하는 능력으로 이 연구에서는 직업과 자기개발, 자기관리 능력으로 프로그램을 구성하여, 사례분석을 중심으로 한 문제해결능력 향상에 초점을 두고, 동영상과 시뮬레이션, 게임 등의 멀티미디어적 전략을 활용하여 e-Learning 콘텐츠를 개발하였다.

• 한국엔터테인먼트산업학회논문지
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• 제15권8호
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• pp.247-254
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• 2021

본 연구에서는 대학 내 융복합 교육과정을 수강하는 재학생들에게 액션러닝을 활용하여 일정 기간 팀 학습 형태로 자아성찰을 통해 과제를 해결 능력을 함양하여 전공만족도에 미치는 효과에 대하여 알아보고자 한다. 연구 대상은 전남에 소재한 스포츠건강관리학과와 물리치료학과를 융복합 한 스포츠재활학과 재학생 40명으로 액션러닝 교수학습방법을 적용한 학생과 전통적 강의식 학습방법을 적용한 학생의 자기주도적 학습능력, 문제해결 능력 및 전공만족도의 효과 차이를 확인하고자 실시하였다. 액션러닝 교수학습방법을 적용한 실험군 집단 내 변화비교는 자기주도적 학습능력, 문제해결능력 및 전공만족도에서 유의미한 차이가 나타났다(p<.001)(p<.05). 전통적 교수학습방법을 적용한 대조군 집단 내 변화비교에서도 자기주도적 학습능력, 문제해결능력 및 전공만족도에서 유의미한 차이가 나타났다(p<.05). 집단 간 변화비교는 자기주도적 학습능력, 문제해결능력 및 전공만족도에서 유의미한 차이가 나타났다(p<.05). 융복합 교육과정에서 액션러닝 교수방법을 재학생의 수준에 맞추어 적용시키면 자기주도적 학습능력, 문제해결능력 및 전공만족도를 효율적으로 향상시킬 수 있을 것이며, 추후에도 대상을 확대하고 변수들을 추가하여 질적연구를 병행하는 연구가 필요할 것이다.

• 제어로봇시스템학회논문지
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• 제5권2호
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• pp.189-199
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• 1999

This paper presents an optimization algorithm for a stable Self Dynamic Neural Network(SDNN) using genetic algorithm. Optimized SDNN is applied to a problem of controlling nonlinear dynamical systems. SDNN is dynamic mapping and is better suited for dynamical systems than static forward neural network. The real-time implementation is very important, and thus the neuro controller also needs to be designed such that it converges with a relatively small number of training cycles. SDW has considerably fewer weights than DNN. Since there is no interlink among the hidden layer. The object of proposed algorithm is that the number of self dynamic neuron node and the gradient of activation functions are simultaneously optimized by genetic algorithms. To guarantee convergence, an analytic method based on the Lyapunov function is used to find a stable learning for the SDNN. The ability and effectiveness of identifying and controlling a nonlinear dynamic system using the proposed optimized SDNN considering stability is demonstrated by case studies.

• 기본간호학회지
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• 제22권1호
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• pp.49-58
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• 2015

Purpose: This study was conducted to identify the effects of a standardized patients (SP) simulation program for nursing students on nursing competence, communication skill, self-efficacy and critical thinking ability for blood transfusion. Methods: A nonequivalent control group non-synchronized design study was used and included as participants 96 junior nursing students at C University. The SP group (n=48) participated in the teaching class using a SP, while the control group (n=48) received conventional practice education. The outcome measurements were nursing competence, communication skill, self-efficacy, and critical thinking ability for transfusion. Results: Nursing competence, communication skill, self-efficacy, and critical thinking ability improved for students in both groups after training ($2.01{\leq}t{\leq}13.03$, p<.05). Self-efficacy showed greater improvement in students in the SP group compared to the control group (t=3.36, p<.001). Conclusion: SP simulation practice may be more effective in enhancing self-efficacy than that of conventional practice education. Whether self-efficacy will contribute to enhancing learning motivation for nursing students needs further examination.

• 정보교육학회논문지
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• 제15권2호
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• pp.189-199
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• 2011

본 연구는 초등학교 현장에서 선행조직자를 적용한 프로그래밍 학습이 초등학생의 논리적 사고력과 자기효능감에 미치는 영향을 분석하여 그 효과성을 검증하는 데 목적이 있다. 이에 본 연구에서는 논리적 사고력과 자기효능감을 향상시킬 수 있는 선행조직자를 개발하고 이를 초등 현장에 적용하여 그 효과성을 분석하였다. 본 연구의 검증을 위해 초등학교 4학년 두 학급을 전통적인 프로그래밍 학습을 하는 통제집단과 선행조직자를 적용한 프로그래밍 학습을 하는 실험집단으로 나누어 수업을 실시하였다. 효과성을 검증하기 위해 사전 사후 t-검증을 하였고, 그 결과 두 집단 간의 논리적 사고력과 자기효능감에서 유의미한 차이를 나타내었다.

• Nuclear Engineering and Technology
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• 제55권10호
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• pp.3515-3524
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• 2023

A reinforcement learning framework is proposed for the control problem of outlet steam pressure of the once-through steam generator(OTSG) in this paper. The double-layer controller using Proximal Policy Optimization(PPO) algorithm is applied in the control structure of the OTSG. The PPO algorithm can train the neural networks continuously according to the process of interaction with the environment and then the trained controller can realize better control for the OTSG. Meanwhile, reinforcement learning has the characteristic of difficult application in real-world objects, this paper proposes an innovative pretraining method to solve this problem. The difficulty in the application of reinforcement learning lies in training. The optimal strategy of each step is summed up through trial and error, and the training cost is very high. In this paper, the LSTM model is adopted as the training environment for pretraining, which saves training time and improves efficiency. The experimental results show that this method can realize the self-adjustment of control parameters under various working conditions, and the control effect has the advantages of small overshoot, fast stabilization speed, and strong adaptive ability.

• 기본간호학회지
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• 제16권1호
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• pp.46-55
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• 2009

Purpose: The purpose of this research was to evaluate the effects of PBL on ability of nursing students in Self-Directed Learning, Critical Thinking Disposition and Problem Solving Process. Methods: The research design was a nonequivalent control group pretest-posttest design. For the experimental group PBL was used during one semester (14 weeks). Instruments for data collection were Self-Directed Learning Readiness Scale (Kim, 1997), Critical Thinking Disposition Scale (K won et al., 2006) and Problem Solving Process Scale (Lee, 1979). The data were analyzed by repeated measure ANOVA. Results: There were statistically significant improvements in Self-Directed Learning and Critical Thinking between the two groups after PBL. But there was no statistically significant improvement in the Problem Solving Process. Conclusion: These results suggest that PBL has a positive effect on nursing students' education. Therefore, PBL should be used for more subjects in the nursing curriculum.

• 성인간호학회지
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• 제28권4호
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• pp.447-458
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• 2016

Purpose: This study was designed to describe the effects of a nursing simulation focused on patients with cardiac arrest. The study was designed to measure knowledge, self-confidence, critical thinking, and clinical performance ability of nursing students. Methods: A non-equivalent control group quasi-experimental design was used. Thirty students in the experimental group received two hours of pre-learning and three hours of skill and simulation practice. Another thirty students in the experimental group received a two hour conventional lecture and three hours for skill practice. The post survey was completed by both groups. Results: Students in the experiemetal group scored significantly higher than students in control group. The critical thinking disposition was not significantly different between the two groups of students. Conclusion: The results indicate that a simulation education program is more effective in a number of areas including knowledge, self-confidence, and clinical performance. It is recommended that simulation education should be expanded to various clinical situations.