• Journal of Fashion Business
• /
• v.19 no.3
• /
• pp.121-129
• /
• 2015

Aloe is a popular and effective agent used to cosmetic ingredient. It could replace artificial pigment on make-up base product and it is highly probable that might be useful as ingredients of multi-functional color cosmetic. In this study, we made a makeup base containing aloe extract and tested the effectiveness, safety and stability. Contents of polyphenol and flavonoid from the aloe extract were measured. To determine the antimicrobial effect from the aloe we used the paper disc diffusion method. We assessed the safety of make-up base containing aloe to cultured macrophage RAW 264.7 cells by MTT assay. Polyphenol contents of aloe extract and flavonoid respectively were 48 mg/g and 10 mg/g, in the 10 % concentration aloe extract. In case of aloe make-up base, the clear zone against Stapylococcus epidermidis was 9~11 mm and Stapylococcus aureus was also 9~11 mm. Growth activity of macrophage RAW 264.7 cells was over 80% in all concentration of make-up base containing aloe and general make base product. In conclusion aloe extract may be able to substitute the synthetic pigments and considered to be uses for ingredients multi-functional color cosmetic's ingredient.

• IEMEK Journal of Embedded Systems and Applications
• /
• v.17 no.5
• /
• pp.273-280
• /
• 2022

Along with the advancement of deep learning technology, securing high-quality dataset for verification of developed technology is emerging as an important issue, and developing robust deep learning models to the domestic road environment is focused by many research groups. Especially, unlike expressways and automobile-only roads, in the complex city driving environment, various dynamic objects such as motorbikes, electric kickboards, large buses/truck, freight cars, pedestrians, and traffic lights are mixed in city road. In this paper, we built our dataset through multi camera-based processing (collection, refinement, and annotation) including the various objects in the city road and estimated quality and validity of our dataset by using YOLO-based model in object detection. Then, quantitative evaluation of our dataset is performed by comparing with the public dataset and qualitative evaluation of it is performed by comparing with experiment results using open platform. We generated our 2D dataset based on annotation rules of KITTI/COCO dataset, and compared the performance with the public dataset using the evaluation rules of KITTI/COCO dataset. As a result of comparison with public dataset, our dataset shows about 3 to 53% higher performance and thus the effectiveness of our dataset was validated.

• Journal of Korea Society of Digital Industry and Information Management
• /
• v.20 no.1
• /
• pp.87-98
• /
• 2024

This study conducted an empirical study on the application of innovative teaching methods in the tourism field in a situation where innovative teaching methods suitable for the AI era are required. It was intended to provide exploratory basic data on the application of a wide range of innovative teaching methods through actual verification of the educational effectiveness before and after the application of the innovative teaching method. To this end, the effectiveness before and after education was empirically verified with 60 students who majored in tourism at Y University in the metropolitan area. Reliability analysis, corresponding sample t-test, and map analysis using graphs were performed on the collected data to increase visibility. As a result of the study, it was found that all the competencies of the innovative teaching method had a statistically significant influence after the application of the innovative teaching method. In addition, by increasing the effect of interaction between instructors and learners acting as facilitators, exploratory results were derived for potential benefits and areas that could be improved.

• Journal of the Korean Society of Systems Engineering
• /
• v.15 no.1
• /
• pp.51-59
• /
• 2019

After Fukushima Dai-ichi NPP accident, the need for implementation of diverse and flexible coping strategies (FLEX) became evident. However, to ensure the effectiveness of the safety strategy, it is essential to quantify the uncertainties associated with the station blackout (SBO) scenario as well as the operator actions. In this paper, a systems engineering approach for uncertainty analysis (UA) of a SBO scenario in advanced pressurized water reactor is performed. MARS-KS is used as a best estimate thermal-hydraulic code and is loosely-coupled with Dakota software which is employed to develop the uncertainty quantification framework. Furthermore, the systems engineering approach is adopted to identify the requirements, functions and physical architecture, and to develop the verification and validation plan. For the preliminary analysis, 13 uncertainty parameters are propagated through the model to evaluate the stability and convergence of the framework. The developed framework will ultimately be used to quantify the aleatory and epistemic uncertainties associated with an extended SBO accident scenario and assess the coping capability of APR1400 and the effectiveness of the implemented FLEX strategies.

• Journal of the Korean Society for Aviation and Aeronautics
• /
• v.28 no.1
• /
• pp.75-82
• /
• 2020

To compare and analyze the differences between flight simulation and actual flight among 130 army helicopter pilot training subjects, the correlation analysis was performed first through t-testing and multiple regression analysis of individual characteristics and flight simulation and actual instrument flight training, which were analyzed significantly in the age (a3) and service classification (a5) of the six verification factors. This has been shown to be significant, with no difference between the flight simulator and the actual flight. Second, in order to study the correlation between aircraft types, the flight evaluation (v1) was analyzed as a dependent variable for the performance of the flight simulator (KUH: s2, UH60: s3, AH-1S: s5, UH-1H: s6), and the results of the multiple regression analysis of the flight simulator evaluation (s1) were analyzed, in contrast, as a dependent variable, and in conclusion, the training of the flight simulator provided statistical data on the possibility of replacing the actual flight training, which is thought to contribute to the orientation, budget reduction and aviation safety of the pilot training.

• Journal of Korean Academy of Nursing
• /
• v.43 no.4
• /
• pp.468-477
• /
• 2013

Purpose: This study was conducted to develop a simulation-based education program for newborn emergency care based on most needed topics found from the needs assessment. This study consisted of two phases: developing the program and evaluating its effectiveness. Methods: The effectiveness of the program was tested in July, 2012, with 49 junior nursing students from C Nursing College in Seoul, who did not have any clinical experience in newborn care. The experimental group was given a three-hour lecture, three hours of clinical training, and a two-hour simulation program, whereas the control group only had the three-hour lecture. Results: There was significant improvement in knowledge in both groups, but no significant differences according to educational methods. The experiment group was more confident of their care ($4.32{\pm}.29$) than the control group ($3.60{\pm}.29$) with the difference being significant (t=8.85, p<.001), and the experimental group was also more satisfied with the program (${\chi}^2$=4.60, p=.032). Conclusion: As the results indicate 'the neonatal emergency care program' increased learners' knowledge, confidence and satisfaction with the program, it should be integrated into clinical training in pediatric nursing curriculum and in-service programs for nurses. To increase generalization further verification studies with various learner groups are needed.

• Journal of KIISE:Software and Applications
• /
• v.36 no.4
• /
• pp.283-290
• /
• 2009

Context-awareness is one of the key features of ubiquitous paradigm. A methodology that is specifying the relationships between the contexts and services needs to be developed to intelligently and sensitively deal with dynamic environment. The existing models on context-aware modeling are difficult to verify the correctness of models with respect to timeliness. In this paper we propose an approach which includes timing constraint in the relations of the context model, and verify its effectiveness using colored Petri-Net. Moreover, a context-modeling toolkit including context-awareness engine and simulator is developed to support agent-based context-aware service. The effectiveness of the proposed methodology is demonstrated using an example of Usilvercare.

• Journal of the Korean Home Economics Association
• /
• v.50 no.1
• /
• pp.121-139
• /
• 2012

This study aims to develop a program for enhancing family resilience in cancer patients along with their family members and verify its effectiveness. The subjects were inpatients with cancer and their families, totaling 46 subjects at an university hospital in Busan. They were divided into two groups, the participating group who were in an experiment and the control group who were not taking part in the experiment. Then family resilience was measured before and after completing the program sessions. The program was conducted once a week, 4 times, for two hours. The participating group of family resilience strengthening program showed higher family resilience compared with that of the control group. The results suggest that family resilience can be enhanced through adversity. It also verifies that family resilience of family members with cancer patients can be strengthened by expressing emotion, conveying deep affection, and sufficiently supporting one another through the family resilience strengthening approach.

• Journal of Fisheries and Marine Sciences Education
• /
• v.28 no.6
• /
• pp.1834-1847
• /
• 2016

Main objectives of the this study are: to develop a model of "Flipped Leaning" that is designed to enhance self-directed learning, learning motivation and self-control, and to verify its effectiveness-in higher education. The verification process initially concentrated on the feasibility study of the model with a thorough literature review and case analyses; then, its general and practical applicability were tested with a field study. As a result, first, the CHANGE Class Model, specifically designed for effective and efficient "Flipped Learning", was developed. It is thus named for the stages that the learning process takes place in the model-i.e., (1) Check ${\rightarrow}$ (2) Ask ${\rightarrow}$ (3) Notice ${\rightarrow}$ (4) Group presentation ${\rightarrow}$ (5) Evaluation, and it emphasizes the dynamic, questions centered (i.e. back and forth between the students and the instructor as well as between the students) learning process. Second, the Model was instrumental in enhancing self-directed learning, learning motivation and self-control; thus, as a result, it significantly improved the effectiveness, the level of concentration and the attractiveness of the learning process. The value of this study lies in pointing to a clear plan to allow a student in higher learning to set-up a self-directed learning plan, to be able to control it while being continuously motivated to complete it.

• The Journal of the Korea Contents Association
• /
• v.12 no.10
• /
• pp.43-53
• /
• 2012

It is well known, with many researches, that identification is an important element for inducing audiences' emersion. If the director makes the audience to see with the eyes of characters, be identified, and understand the movie situations, the narrative can be transferred more effectively. The directing method of identification for visually connecting the characters and the audiences is studied. The effectiveness is verified by comparing animations and analyzing the responses of audiences. The authors want to establish the basis of directing the identification for real production.