• Translational and Clinical Pharmacology
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• v.25 no.1
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• pp.15-20
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• 2017

This study was performed to evaluate the use of vibrating microneedles for the transdermal delivery of vitamin C. The microneedles were designed to vibrate at three levels of intensity. In vitro permeation by vitamin C was evaluated according to the specific conditions such as vibration intensity (levels 1, 2 and 3), application time (1, 3, 5, 7 and 10 min), and application power (500, 700 and 1,000 g). The highest permeation of vitamin C was observed at level 3 of vibration intensity, 5 min of application, and 1,000 g of application power. Vitamin C gel showed no cytotoxic effect against Pam212 cells or skin irritation effects. A pharmacokinetic study of the gel in rats was conducted under optimized conditions. The $AUC_{0-{\infty}}$ and $C_{max}$ increased 1.35-fold and 1.44-fold, respectively, compared with those after vitamin C gel without application with vibrating microneedles. The present study suggests that vibrating microneedles can be used to facilitate the skin permeability of vitamin C under optimal conditions.

• Nuclear Engineering and Technology
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• v.55 no.2
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• pp.475-483
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• 2023

The high-flux advanced neutron application reactor (HANARO) is a multi-purpose research reactor at the Korea Atomic Energy Research Institute (KAERI). HANARO has been used in scientific and industrial research and developments. Therefore, stable operation is necessary for national science and industrial prospects. This study proposed an anomaly detection system based on deep learning, that supports the stable operation of HANARO. The proposed system collects multiple sensor data, displays system information, analyzes status, and performs anomaly detection using deep autoencoder. The system comprises communication, visualization, and anomaly-detection modules, and the prototype system is implemented on site in 2021. Finally, an analysis of the historical data and synthetic anomalies was conducted to verify the overall system; simulation results based on the historical data show that 12 cases out of 19 abnormal events can be detected in advance or on time by the deep learning AD model.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.23 no.57
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• pp.113-122
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• 2000

A mixture of two distributions, each belonging to the same known Weibull distributions, is proposed and a simple graphical method for estimating the parameters of the Weibull distribution is applied. It appears from the results of this study that the mixed Weibull distribution is an appropriate expression for describing industrial property mortality characteristics.

• Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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• 2004.11a
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• pp.223-228
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• 2004

As industries developed, industrial goods have got bigger and more precise. It led producers to feel like having a way to confirm whether the goods are good enough for the needs of consumers or not. Because of that, producers got interested in industrial photogrammetry that can get accurate data quickly without coming cotact with customers directly. Based on the need, this study is examined by photographing an O-2A aircraft which is a large and precise one to check the application of Industrial Photogrammetry.

• Proceedings of the SAREK Conference
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• 2004.06a
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• pp.225-225
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• 2004

• Journal of Korean Society of Industrial and Systems Engineering
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• v.17 no.30
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• pp.67-71
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• 1994

Quality Control Circle activity is widely introcuced by manufacturing industries. Q.C.C. is studied not only in relation with five points of view such as corporate culture, labor union, organizational management model in Korea, the Theory W and educational revolution etc. but also in social, cultural background, and national trait's view points. The main goal of this study is to investigate sucessful role and active application in Quality Control Circle activity.

• Proceedings of the KIEE Conference
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• 2004.11b
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• pp.211-213
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• 2004

실시간 데이터를 대상으로 하는 전력 계통응용 프로그램을 개발하기 위해서는 SCADA 시스템이 다루는 Point Data를 Device Level의 속성으로 해석할 수 있어야 한다. 본 논문에서는 이러한 관계를 나타낼 수 있는 Mapping 기법을 제안하고 실제 응용 프로그램에 적용한 사례를 소개하고자 한다.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.18 no.33
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• pp.119-122
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• 1995

Application of the PWFRM and SRGM for software reliability Prediction offers not only the judging base of model but also themselves with good applicabilty as easy-to-use tool.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2022.05a
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• pp.552-553
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• 2022

Key technologies of Fourth Industrial Revolution and their innovative applications are expected to bring another technological revolution going forward. The present study takes a close look at the Internet of Things (IoT) among the key technologies of the Fourth Industrial Revolution. In particular, sensor devices, which serve as the core of IoT-based application systems, are analyzed. This study also examines various applications and solutions using IoT-based systems.

• Proceedings of the KAIS Fall Conference
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• 2009.05a
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• pp.507-510
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• 2009

최근 인터넷쇼핑몰은 판매자 중심에서 구매자 중심으로 변화하고 있으며, 새로운 사용자 경험(User Experience)의 요구하고 있다. 본 논문에서는 웹 표준 및 접근성을 고려하여 사용성(Usability)과 효율성을 기반으로 상호작용하는 동적인 Web Application 기술을 적용하여 새로운 사용자 경험(User Experience)을 제공하고 전자상거래의 새로운 패러다임을 제시할 수 있는 사용자(구매자) 및 관리자(판매자)의 동적인 유저인터페이스(UI : User Interface)가 가능한 Web Application을 제언 하는 데에 그 목적이 있다.