• The Journal of the Korea Contents Association
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• v.20 no.9
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• pp.150-157
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• 2020

This study was conducted to explore whether problem solving ability mediates the effect of flow on the level of task participation in PBL. The subjects of this study were 60 students(in Education methods and technology class). For the study, data were collected through questionnaires on flow, problem-solving ability, and task participation level. Collected data are analyzed using SPSS Macro and bootstrapping method. As a result, the impact of flow was positive on the level of task participation. And the problem solving ability was found to have an indirect effect at the level of .292. Problem solving ability mediates the impact of commitment on the level of participation in the task. The results of these studies are the basis for how to improve the level of participation in the task by supporting problem-solving skills in PBL activities.

• The Journal of the Convergence on Culture Technology
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• v.7 no.4
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• pp.511-517
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• 2021

This study is a descriptive investigative study to correlate of learning flow, self-directedness, self-regulated learning ability and learning achievement of nursing students who in non-face-to-face learning environment. The subjects of the study were 179 nursing college students based in B, G city, who collected data from September to October 2021. The data analysis used the SPSS 24.0 program and performed descriptive statistics and correlation analysis. As a result of the study, the average learning flow was 38.54±7.87 points, self-directedness was 134.83±19.81 points, self-regulated learning ability was 42.93±5.98 points and learning achievement was 15.03±2.56 points. The relationships among learning flow, self-directedness, self-regulated learning ability, and learning achievement showed significant positive correlations. Therefore, strategies to increase the learning achievement of nursing college students in a non-face-to-face environment, and environmental improvement and institutional support to increase learning flow are needed.

• The Journal of Korean Association of Computer Education
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• v.12 no.1
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• pp.45-55
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• 2009

The purpose of this study was to examine the possibility of development of flow level and problem-solving ability by Using robots in the programming classes. For this purpose, a course has been developed which consists of (1) strategies to motivate students and to improve flow level (2) Creative Problem Solving (CPS) teaching model to improve their problem solving abilities. We experimented the course with 30 second-grade middle school students and we could observe that the robot programming learning considered gender differences helps improving their problem solving abilities and flow level. Specially, the group of the female student was greater improvement than the group of the male student on flow level.

• Proceedings of the Korean Society of Agricultural Engineers Conference
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• 2002.10a
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• pp.185-188
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• 2002

This study is performed to examine the engineering properties of polyprofilene fiber reinforced high flowable concrete. For the estimation of the flow ability and filling ability, the slump flow, box height difference and L-shape filling appearence are measured and compared. The test result shows that the slump flow and L-shape filling appearence is decreased with increase containing polyprofilene fiber and box height difference is increased with increase containing polyprofilene fiber. Also, compressive strength is decreased with increase containing polyprofilene fiber.

• The Journal of Pediatrics of Korean Medicine
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• v.23 no.3
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• pp.241-262
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• 2009

Objectives This study is designed to investigate the effects of Jujadokseo-hwan on the brain ability and inducing oxidative stresses. Methods We measured the changes of regional cerebral blood flow and mean arterial blood pressure. Then we analyzed histological examination, immunohistochemistric response and anti-oxidant activity of Jujadokseo-hwan. Results 1. Treatment of Jujadokseo-hwan significantly increased regional cerebral blood flow but decreased mean arterial blood pressure. 2. Treatment of Jujadokseo-hwan-induced increase of regional cerebral blood flow was significantly inhibited by pretreatment with indomethacin (1 mg/kg, i.p.), an inhibitor of cyclooxygenase. 3. In histological examination through TTC stain, group I was no change, but group II showed that discolored in the most cortical part. Group III showed that decreased discolor in the cortical part. 4. In immunohistochemistric response of BDNF, group II showed that lower response effect. Group III showed that increase response effect. 5. Treatment of Jujadokseo-hwan increased proliferation rates of Glial cell effectively 6. Treatment of Jujadokseo-hwan accelerated proliferation rates of C6 cells in vitro. In addition, protective effects on cell death induced by paraquat, rotenone and hydrogen peroxide. In addition, activity of SOD were increased by treatment with Jujadokseo-hwan. Conclusions In conclusion, Jujadokseo-hwan can improve of the brain ability, learning ability, memory ability and induce ischemic brain injuries.

• The Journal of Korean Association of Computer Education
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• v.12 no.6
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• pp.11-19
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• 2009

In the knowledge-information-oriented society, it is difficult for students to solve lots of problems or adapt themselves to society just by using simple knowledge. Students have to develop individual problem solving ability and creative, logical thinking ability. They can develope these abilities by learning computer programming. This thesis studies the influences of a flow-chart learning on the logical thinking ability in Scratch using programming learning. The findings identify that the making algorithm by using flow-chart is more effective in developing logical thinking ability then the making algorithm by using pseudo-code.

• Journal of Digital Convergence
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• v.18 no.8
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• pp.55-67
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• 2020

The purpose of this study was to investigate the effects of CELL curriculum participation on learning flow, learning motivation, academic self-efficacy, and self-directed learning ability. To this end, in the first semester of 2020, 386 students from K University conducted a pre-post survey and analyzed using SPSS. The main research results are as follows. First, participation in the CELL curriculum showed statistically significant improvement in the student's learning flow, learning motivation, academic self-efficacy, and self-directed learning ability. Second, the analysis by gender showed significant improvement in learning flow, academic self-efficacy, and self-directed learning ability only for female students. Third, in the analysis by grade level, the sophomore showed significant improvement in learning flow and self-directed learning ability, the junior in all variables, and the senior in academic self-efficacy and self-directed learning ability. Fourth, participation impressions and improvements were summarized through interviews of participating students. This study is significant in that it examines the effectiveness of the CELL curriculum and suggests practical measures for systematic operation and support.

• Journal of Environmental Science International
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• v.22 no.9
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• pp.1131-1139
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• 2013

Desorption characteristics of VOCs were investigated for the effective recovery of gasoline vapor. The adsorption capacity and desorption capacity were excellent at relatively low temperatures. The differences in the desorption capacity were not large in the condition; desorption temperature $25^{\circ}C$, desorption pressure 760 mmHg, inlet air flow rate 0.5 L/min, but were relatively great in the condition; desorption temperature $0^{\circ}C$, desorption pressure 60 mmHg, inlet air flow rate 1.0 L/min. The desorption ability of pentane was increased to about 81.4%, and the desorption ability of hexane was increased to about 102%, also the desorption ability of toluene was increased to about 156.7% by changes of temperature, pressure, inlet air flow rate in the experimental conditions. The optimum desorption condition for the effective recovery of VOCs was in the conditions; desorption temperature $0^{\circ}C$, desorption pressure 60 mmHg, inlet air flow rate 1.0 L/min.

• Journal of The Korean Association of Information Education
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• v.24 no.6
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• pp.597-606
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• 2020

Recently, as students' programming classes are being conducted online, interest in factors that can lead to the success of online programming classes is also increasing. Therefore, in this study, online programming classes were conducted for specialized high school students using a web-based simulation programming tool through TinkerCad. In these online programming classes, students' self-regulation ability and learning flow were set as variables that influence both learning engagement and teaching presence, and the predictive power of each was analyzed. As a result, it was found that both self-regulation ability and learning flow were predictive variables for learning engagement and teaching presence, and that learning flow played a mediating role between self-regulation ability, learning engagement, and teaching presence. This study is meaningful in that it suggested that self-regulation ability and learning flow should be considered more meaningfully in online programming classes, and a practical strategy for this is presented.

• Proceedings of the Korean Society of Agricultural Engineers Conference
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• 2002.10a
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• pp.205-208
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• 2002

This study is performed to examine the flowability and filling ability of steel fiber reinforced high performance concrete. For the estimation of the flowability and filling ability, slump flow, box height difference and L-shape filling appearence are measured and compared. The test result shows that the slump flow is $60{\pm}5cm$ to make no difference with containing steel fiber, box height difference is increased with increasing steel fiber and L-shape filling appearence is to bad with increasing steel fiber. But, proper containg of steel fiber is considered to be applied for high performance concrete without decreasing of slump flow and filling ability.