• Toxicological Research
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• v.18 no.3
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• pp.267-273
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• 2002

Fructose 1,6-diphosphate(FDP), a glycolytic metabolite, is reported to ameliorate inflammation and inhibit the nitric oxide production in murine macrophages stimulated with endotoxin. It is also reported that FDP has cytoprotective effects against hypoxia or ischemia/reperfusion injury in brain and heart, and may play a protective role in ultraviolet B (UVB, 280~320 nm)-injured keratinocyte by attenuating prostaglandin (PG)-E$_2$production and cyclooxygenase (COX)-2 expression, which are possibly through blocking the intracellular reactive oxygen species (ROS) accumulation. Therefore FDP is considered to act as a potent antioxidant especially in the skin. We conducted the several safety tests (single-dose toxicity, primary skin irritation test, eye irritation test, skin sensitization test, phototoxicity test, photosenitization test and human patch test) to see if FDP is safe in case used for the skin application. Our data obtained hitherto suggest that FDP is very safe if applied to the skin.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2011.05a
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• pp.33-36
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• 2011

Recently, It has increased to use ultra high strength concrete. It is effective to mix organic fibers for preventing spalling. But if fiber mixed, flowability of concrete is decreases. The aim of this study is to evaluation of fire resistance performance for fiber-mixed ultra high strength concrete on field application. As a result, flowability of nylon fiber mixed concrete is better than polyethylene fiber mixed. In non-fiber and polyethylene fiber mixed concrete, spalling occurred. And strain converged at 0.004. Also, residual strength could not evaluate. Nylon fiber mixed concrete is effective to prevent spalling. And it remians 50% residual strength compare with compressive strength at room temperature.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.21 no.3
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• pp.46-54
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• 2013

Most aircraft accidents are attributed to crew error, but traditional training programs focus on individual training and evaluation. So, FAA developed innovative training and qualification programs that incorporate the most recent advances in training methods and techniques. AQP(Advanced Qualification Program) is focus on crew and individual performance in both training and evaluation. The primary goal of AQP is to achieve the highest possible standard of individual and crew performance. Nowaday, a lot of Airlines of US and Europe are managing aircrew qualification with AQP or ATQP. This paper proposed government's organization, documents, personnel and education to apply AQP to Korea, as well as domestic airlines available application of AQP.

• Nuclear Engineering and Technology
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• v.28 no.3
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• pp.331-338
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• 1996

In the thermal-hydraulic design, the effect of fuel rod bow is quantified tv the rod bow DNBR penalty which is a key design parameter to assure the coolability of fuel assembly in the pressurized water reactor. In this work, a computer program for the evaluation of the rod bow DNBR penalty based on Westinghouse methodology is developed and its application procedure is proposed. The computer simulation is based on the Monte-Carlo method. The qualification of developed computer program is performed by a comparison of calculational result with that given by Westinghouse's document. A new application procedure is built using batch mean and batch standard deviation. The normality of sample population generated by the batch calculation is confirmed by means of a chi-square test for goodness of fit. On the view point of statistics it is effected that the more reliable design value may be produced by the new application procedure.

• Journal of Software Engineering Society
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• v.25 no.4
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• pp.63-67
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• 2012

According to the growth of data being generated in man fields, a distributed programming model MapReduce has been introduced to handle it. In this paper, we build two cluster system with Solaris and Linux environment on SUN Blade150 respectively and then to evaluate the performance of a MapReduce application running on MapReduce middleware Hadoop in terms of its average elapse time and standard deviation. As a result of this experiment, we show that the overall performance of the MapReduce application based on Hadoop is affected by the configuration of the cluster system.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2023.11a
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• pp.41-42
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• 2023

The physical performance of high-strength concrete deteriorates when exposed to high temperatures such as fire. In particular, in the case of ultra-high-strength concrete, there is a high possibility of explosion due to internal water pressure and thermal expansion due to the tight internal structure. In this paper, a fire resistance certification test was conducted for field application of ultra-high-strength fire-resistant concrete, and the fire resistance performance (temperature rise of main rebar) was compared according to the structural concrete cover thickness. As a result, when the covering thickness was 40 mm, three structures did not meet the certification standards, and when the covering thickness was 50 mm, all structures met the fire resistance certification standards.

• Journal of The Korean Association of Information Education
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• v.21 no.3
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• pp.267-275
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• 2017

The purpose of this study is to analyze the teachers' perceptions about the various evaluation methods used in SW education and to find ways to improve the usefulness of the field. To do this, we surveyed the teachers who were educated about SW education evaluation. As a result of the study, it was recognized that the use of output, portfolio, and observation evaluation in SW education class is suitable for evaluating Computational Thinking(CT) and useful for field application. On the other hand, paper and self-evaluation are useful for field application, but they are relatively inadequate to evaluate CT. Portfolio, design, and interview evaluations are good for measuring CT, but they are difficult to apply to the field. Also, evaluation criteria, evaluation factors, and strategies were found to be difficult to apply. Therefore, we suggest the necessary measures to apply SW education evaluation method more effectively.

• Journal of Digital Convergence
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• v.12 no.1
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• pp.511-518
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• 2014

The purpose of this study is to produce and distribute a smart device based educational application for culinary practice. This study was performed from Jul. 1 to Dec. 30, 2012. The design of the application is composed of the theoretical contents, making methods, practice video and evaluation questions of Western cuisine among the contents of the culinary practice education. In addition, the notice and Q&A were added for the interaction between teachers and learners. For this study, 31 main dishes' pictures, 155 pictures for making processes by menu, 31 recipes, 31 cooking tips, 372 evaluation questions and 31 cooking videos about 31 menus were produced. The contents produced as above were directly inserted at 'http://kongju-fn.dslink.co.kr/super/index.html' to produce the application. This application can be found through searching with the word of 'yoribaksa'. This study can be considered to be significant in that this application was produced in the situation of the absence of any other previous applications for culinary practice education.

• Journal of the Korea Society of Computer and Information
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• v.21 no.7
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• pp.39-46
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• 2016

In this paper, we proposed an application which can conduct to take repetition images for special effect shooting at movies or drama using Bluetooth of smart device. The proposed application can move a camera with motors several times as the same moving after saving of the control data based on the application during specific time using Bluetooth. At the repetition moving, we do not permit to control motors of the camera by person for keeping the same start position and end position after saving the moving data. The camera motors are only moved remotely by saving data of the proposed application. We developed the proposed application and a hardware which works motors with camera to check performance evaluation. Then, we confirmed that the proposed application exactly did the same moving to the motors with camera several times according to saved data. Therefore, because the proposed application can take a same images as control remotely the motors of camera, it will be a useful technology for special effect shooting of movies or dramas.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.11
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• pp.5601-5609
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• 2013

The purpose of this study is to figure out the application of perceived quality and authentication evaluation system of teaching materials and implements for children in the early childhood education field. To achieve this, a survey was carried out from April 20 to April 30, 2013 on 150 guidance teachers who teach children classes for more than 3 years at kindergartens in Daejeon area, Chungnam. The results of the analysis are as follows. First, for the use of teaching materials and implements, 96.1% of teachers thought the quality of teaching materials and implements in their interaction with children was important. Most of them had a high perception of the quantity and quality when using teaching materials and implements with early childhood curriculum. For the most inconvenience when using teaching implements, developmental appropriateness was the highest by 47.3%. And the convenience of the application to children was 3.54 points on average. Above this, the application of teaching implements to children when using play and teaching implements was useful by 3.89 points on verage. The current teaching materials and implements for children in the early childhood education field was normal by 3.29 points on average. Second, teachers' perception of teaching materials and implements was relatively positive by 3.99 points on average, proving that the quality of teaching materials and implements based on the application of teaching materials and implements to early children in kindergartens was very important. Consequently, considering the importance and usefulness of teaching materials and implements, it is necessary to introduce institutional policies that teaching materials and implements with quality standard and institution evaluation can introduce the evaluation authentication system to guarantee the convenience of children' safety and use by the supply of quality-guaranteed products.