• Proceedings of the Korean Society For Composite Materials Conference
• /
• 2004.04a
• /
• pp.59-62
• /
• 2004

According to the change of industry structure, design is the key element to accelerate enhance the value of railway industry as they core competence factors for productive and superiority its level. It is important utilizing materials to embody new train aesthetics and build high technologies. Consequently, apply properties of composite with design formative attribute also functional usability and technology system.

• Journal of Electrical Engineering and Technology
• /
• v.6 no.5
• /
• pp.713-722
• /
• 2011

In the present paper, the problem of stability analysis for linear systems with interval time-varying delays is considered. By introducing a new Lyapunov-Krasovskii functional, new stability criteria are derived in terms of linear matrix inequalities (LMIs). Two numerical examples are given to show the superiority of the proposed method.

• Electronics and Telecommunications Trends
• /
• v.35 no.6
• /
• pp.56-67
• /
• 2020

The core technologies of the 4th Industrial Revolution, such as artificial intelligence, the Internet of Things, the cloud, big data, and mobile networks, are inspiring major changes and innovations in the defense sector worldwide. The United States, China, and Russia are pursuing defense research and development strategies that seek to maintain their leadership on the battlefield in the future through the overwhelming superiority of defense science technology. Defense science and technology concentrate on the development of challenging new disruptive technologies to efficiently respond to future battlefield environments, where the immediate process of determining the outcome of a war will lead to combat power. In this paper, we first look at the development strategies of the 4th Industrial Revolution in major countries and describe the latest trends in defense science and technology accordingly.

• International Journal of Railway
• /
• v.5 no.2
• /
• pp.65-70
• /
• 2012

This paper introduced a novel railway system, Automatic Train Protection and Block (ATPB) briefly, which is proposed to improve the efficiency of existing regional train lines with low cost in Japan. The biggest superiority of ATPB system is a great use of universal and mature technologies, such as GPS and regular mobile telephone networks, so that there is nearly no increment of trackside equipments in the reconstruction. Then in order to guarantee the system safety, a formal model of ATPB is established and analyzed by formal method VDM++. Firstly, the specification is specified by VDM++ formally without ambiguity. Secondly, its internal consistency is proved by discharging the proof obligations. And finally, its satisfiability is checked by systematic testing, which executes specification and checks the outputs against corresponding inputs.

• Proceedings of the KIEE Conference
• /
• 2004.11a
• /
• pp.157-160
• /
• 2004

In this paper, we measured the electrical and optical characteristics of an electrodeless fluorescent lamp system as product from the inside and outside of the country and compared the measured data. Output current wave of domestic 85W is unstable than it's of QL 85 W and the former of spend time after discharging and output current value is larger than the latter. Moreover optical characteristics(brightness, flux, efficiency) value of the former is small than the latter but color rendering index is equivalent. In conclusion, if we improve a little more quality then we must secure the superiority in competition.

• Journal of the Semiconductor & Display Technology
• /
• v.18 no.4
• /
• pp.110-115
• /
• 2019

Blur detection and segmentation play vital role in many computer vision applications. Among various methods, local binary pattern based methods provide reasonable blur detection results. However, in conventional local binary pattern based methods, the blur map is computed by using a fixed threshold irrespective of the type and level of blur. It may not be suitable for images with variations in imaging conditions and blur. In this paper we propose an effective method based on local binary pattern with adaptive threshold for blur detection. The adaptive threshold is computed based on the model learned through the multinomial logistic regression. The performance of the proposed method is evaluated using different datasets. The comparative analysis not only demonstrates the effectiveness of the proposed method but also exhibits it superiority over the existing methods.

• Korean Journal of Construction Engineering and Management
• /
• v.12 no.1
• /
• pp.115-124
• /
• 2011

The Construction New Excellent Technology was introduced to promote the development of domestic construction technology and enhance national competitiveness, by inspiring the development desire of technology developers in 1989. Domestic Construction New Excellent Technology is first introduced in 1989, the total 596 cases were assigned to the new technology and it was used the construction site. Also, it was achieved the quantitative performance of thirty-hundred applications and was effected to the domestic construction industry. However, the systematic analysis about the introduction effects of Construction New Excellent Technology are none. Therefore, the quantitative analysis of economic effects in construction industry have to a justification in according to operation of Construction New Excellent Technology system and verification of superiority. And then, the Construction New Excellent Technology system needs a developing base in the future. In this study, The Economic Impacts of Construction New Excellent Technology were analyzed in quantitatively such as a cost savings effects, the employment effects, the effects on Value-added, the import substitution effects due to use of Construction New Excellent Technology. This study will be used promotion of economics and superiority in the Construction New Excellent Technology.

• ETRI Journal
• /
• v.37 no.2
• /
• pp.251-261
• /
• 2015

We present a novel method for real-time automatic license plate detection in high-resolution videos. Although there have been extensive studies of license plate detection since the 1970s, the suggested approaches resulting from such studies have difficulties in processing high-resolution imagery in real-time. Herein, we propose a novel cascade structure, the fastest classifier available, by rejecting false positives most efficiently. Furthermore, we train the classifier using the core patterns of various types of license plates, improving both the computation load and the accuracy of license plate detection. To show its superiority, our approach is compared with other state-of-the-art approaches. In addition, we collected 20,000 images including license plates from real traffic scenes for comprehensive experiments. The results show that our proposed approach significantly reduces the computational load in comparison to the other state-of-the-art approaches, with comparable performance accuracy.

• Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
• /
• 2004.11a
• /
• pp.21-24
• /
• 2004

In this paper, we measured the optical characteristics of the electrodeless fluorescent lamp system as product of the inside and outside of the country and compared the measured data. Power consumption wave of domestic 150 W is unstable than it's of Endura 150 W. Optical characteristics(luminance, luminous flux, color rendering index, efficiency, CIE chromaticity coordinate) value of the former is a little small than the latter. In conclusion, if we improve a little more quality then we must secure the superiority in competition.

• International Journal of Aeronautical and Space Sciences
• /
• v.18 no.4
• /
• pp.697-708
• /
• 2017

The complex battlefield environment makes it difficult to intercept maneuvering targets for guided missiles. In this paper, a finite-time convergent (FTC) guidance law based on the second-order sliding mode (SOSM) control theory is proposed to achieve the requirements of stability, accuracy and robustness. More specifically, a second-order sliding mode observer (SMOB) is used to estimate and compensate for the total disturbance of the controlled system, while the target acceleration is extracted from the line-of-sight (LOS) angle measurement. The proposed guidance law can drive the LOS angular rate converge to zero in a finite time, which means that the missile will accurately intercept the target. Numerical simulations with some comparisons are performed to demonstrate the superiority of the proposed guidance law.