• Journal of Korea Game Society
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• v.15 no.5
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• pp.79-87
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• 2015

Education tools expressed in texts and images turned into the edutainment such as a education and playing experience. Augmented reality(AR) technology in the field of edutainment was possible to have an amused-education by maximizing experiences. Recently, it is also served in a variety of mobile applications which exploit AR technology. The paper is to describe on the practical measures for the experience of education through designing and implementing edutainment contents. The implementation makes use of a engine 'Vuforia', and a platform 'Unity 3D'.

• Journal of the Korean Society of Safety
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• v.20 no.3 s.71
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• pp.180-187
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• 2005

The purpose of this study is to investigate safety consciousness of seafares'. The subjects were 437 seafaes' who took a safety education course in Korea Institute of Maritime and Fisheries Technology. This questionnaire was focused on finding the basic data for prevention of industrial accidents, and getting the public opinions and proposals of seafares'. The results obtained by this study are as follows : The average score of safety consciousness for seafares' were 68.82. Current position level of education navigation area classification of ships, ship size, ship age showed significant difference in statistics(p<0.01). Based on these results, this research pointed out the need to review the training manual, development of educational programs, improvement of facilities to improve safety education of ship, etc.

• Journal of Technologic Dentistry
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• v.8 no.1
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• pp.17-22
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• 1986

It is recognized a very important task to cultivate the vocational ethics consciousness as well as technical education in Dental technical department which intend to foster leading technicians. Based on that point, we analyzed the actual conditions and the problems for the education of vocational ethics, as a try to search for a new orientation for the education of vocational ethics, which should be compatible with the realization of the theory of our national education chart, and its methods are presented centering on following items. a) Balance and harmony b) Unification of knowledge and action c) Self-realization d) Puritying aesthetic sentiments.

• Journal of the Semiconductor & Display Technology
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• v.17 no.3
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• pp.104-107
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• 2018

In this paper, we developed a sensor for monitoring the leakage current through the chassis of the robot. The leakage current sensor needs to be developed because it is a necessary part to prevent electric shock accidents that may occur through the chassis of a robot or an electric vehicle. This leakage monitoring sensor was developed to be mounted directly on the chassis of the robot. This sensor protects the control system from noise by discharging static and high-frequency noise that may occur in the chassis of the robot and monitors the leakage current by measuring the amount of current discharged through the ground. In this paper, a leakage monitoring sensor was developed with a simple structure using resistors, capacitors and OP-AMP, and the performance was evaluated.

• Journal of the Korea Society of Computer and Information
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• v.24 no.1
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• pp.1-7
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• 2019

In this paper, we implemented a Wi-Fi based cluster system using raspberry pi for multidisciplinary education. The cluster implementation on the desktop was more difficult to maintain the complexity, big size, high price, power consumption as the number of nodes increased. In this paper, we implemented a cluster using Raspberry Pi, which is developed for educational purposes, to reduce the cost of connecting nodes. In addition, the complexity of system construction is reduced by replacing the connection between each node with Wi-Fi. Also, the inconvenience of configuration due to node increase was reduced. It is expected that the implementation of the cluster will be a good alternative in the educational environment where distributed processing and parallel processing are performed in the embedded environment. Also, it is confirmed that it can be applied to the multidisciplinary education.

• The Mathematical Education
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• v.39 no.2
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• pp.179-186
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• 2000

Although computer technology has a great potential for improving mathematics learning practice, it rarely used in mathematics classroom. The purpose of this study is to suggest the future direction for research in mathematics computer technology. First, there has to be a research on mathematics curriculum that take computer technology into account. Second, research on teaching sequence for certain content area is needed. Because computer technology would change the order of teaching sequence. Third, how students would learn with computer technology? how do they acquire knowledge and make sense of it? Fourth, how could we assess the learning with computer technology? Most of all, because teachers play a key role to succeed in educational reform, they have to be familiar with computer technology and software to introduce it into mathematics learning and to use it properly.

• Journal of Korean society of Dental Hygiene
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• v.16 no.6
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• pp.1067-1078
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• 2016

Objectives: The aim of this study was to investigate the effect of cardiopulmonary resuscitation (CPR) education in dental hygiene students. Methods: A self-reported questionnaire was completed by fifty dental hygiene students in May 2016 before and after CPR education. The questionnaire consisted of knowledge, attitude, confidence, and performance of CPR skill. Performance test by professionals was measured to evaluate capability of skill after CPR education. Results: Scores of the knowledge increased from 4.35 to 12.24 after education (p<0.001). Scores of attitude increased from 51.86 to 58.92 (p<0.001). Scores of confidence changed from 56.66 to 85.02 (p<0.001). Scores of self-capability of skill increased from 44.90 to 74.02 (p<0.001). 5. The average score of capability of skill by professional test was 24.47. Conclusions: CPR education improved the knowledge, attitude, confidence and capability of skill in dental hygiene students. The development and education of CPR program will make the students perform bystander CPR in the emergency situation actively.

• Journal of the Korean Applied Science and Technology
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• v.35 no.2
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• pp.560-567
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• 2018

In the cosmetics industry, many raw materials such as hyaluronic acid and glycerin have been developed and studied as moisturizing agents for long-lasting moisturizing effects. In this study, we investigated changes in moisture and transdermal water loss of skin by changing the surfactant, instead of the moisturizing agent. Particularly, surfactant types such as natural surfactant, lecithin surfactant, polyglyceryl ester surfactant, peg Surfactant and peg w/o surfactant showed changes in moisture and transdermal water loss according to the changes of their surfactants. The best results were obtained when using Lecithin surfactant.

• Journal of the Semiconductor & Display Technology
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• v.10 no.4
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• pp.125-130
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• 2011

The recent PCB (Printed Circuit Board) wet etcher has been needed to process pattern within $20{\mu}m$ width on a $20{\mu}m$ thick board. A previous PCB etcher can be used with multiple points of roller rolls or slips off a board. Also, the damage of the board by contacting the roller increases the friction defects. A vertical type boards transporting process is developed to solve the problems of boards friction and sagging in a horizontal etcher. In this research, CFD (Computational Fluid Dynamics) method is used to design an improved spray nozzle including the critical part of etcher, and establish the design method. Meanwhile, major spray characteristics are expected in diverse nozzle types and variables. Lastly, diverse simulation results are adapted to design an improved nozzle and spray system.

• Journal of the Semiconductor & Display Technology
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• v.4 no.2 s.11
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• pp.7-10
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• 2005

[ $SiO_{2}$ ] or SiON is usually deposited and annealed after formation of silicide in real transistor fabrication processes. Nickel silicide and nickel silicide with Co interlayer were annealed at 650$^{\circ}C$ for 30 min with silica top layer in this study to investigate its thermal stability. SEM, XPS, and FPP(four point probe) were employed for the investigation. Nickel silicide with Co interlayer showed improved thermal stability. Co interlayer seems to play a key role to the stability of nickel silicide.