• Proceedings of the Korea Information Processing Society Conference
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• 2008.05a
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• pp.324-326
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• 2008

컴포넌트 기반 개발(Component Based Development, CBD)은 높은 품질의 소프트웨어를 신속하고 효과적으로 개발할 수 있는 방법으로써 각광 받아 왔다. 하지만 CBD를 이용한 기존의 소프트웨어 개발은 컴포넌트의 행위를 배제하고 컴포넌트 인터페이스만 참조하여 컴포넌트를 설계함으로써, 컴포넌트의 구체적인 행위에 대한 파악과 컴포넌트 간 인터페이스 호환성 보장이 불가능하였다. 이에 따라 컴포넌트 설계 단계에서 컴포넌트의 행위를 상태머신으로 표현하고, 표현된 상태머신을 통해 컴포넌트의 행위 호환성을 보장할 필요가 있다. 이 연구에서는 상태머신으로 표현된 컴포넌트의 행위를 관찰 일치(observation equivalence)와 호출 일관성(invocation consistency)의 개념을 이용하여 행위 호환성을 검증하는 방법을 제공하고, 동적으로 이를 수행하는 도구를 설계한다.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.34 no.2
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• pp.645-654
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• 2014

PMS (Pavement Management System) of National highways in Korea has used HDM (Highway Development and Management)-4 developed by World Bank for decision-making for maintenance and rehabilitation of pavements. However using HDM-4 is not appropriate in Korea because HDM-4 requires excessive input factors for analysis and economic analysis models loaded in HDM-4 are not suitable for Korean circumstances. Thus this study aims development of decision-making system for effective pavement management with reflecting Korean circumstances. Moreover this study proposed to define component of system, deterioration models, and basic units for component, and to analyze characteristics of component of system, and also to develop optimal decision-making system. The decision-making system for PMS mainly consists of 1) DB of highways, traffics, and socio-economic index, 2) pavement deterioration model, 3) speed prediction models by pavement conditions, 4) economic evaluation models, and 5) decision-making supporting system. Also this study provided analysis results in case studies for system verifications. However pavement deterioration models considering future probabilistic characteristic and index of decision-making are needed to develop for a further study.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.5
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• pp.257-265
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• 2020

Parts obsolescence is a component type, in which raw materials or parts that make up a weapons system, are developed and produced according to demand, but they age due to changes in technology or market conditions. The weapon system equipment currently being used by the military is having difficulty in procurement, maintenance, and operation because of the obsolescence of parts. Parts obsolescence during the life cycle of a weapons system affects not only the combat readiness of the military but also the economic loss of material, parts, and equipment manufacturers and suppliers. On the other hand, advanced technology has reduced the life span of electronic components that make up the weapons system. In addition, because of the nature of the weapons system, the obsolescence of components takes decades from development to disposal, which has a serious adverse effect on equipment readiness and life cycle costs. Therefore, it is necessary to manage systematically the parts obsolescence from development until the disposal of the weapons system equipment. This study examined the system of component control in developed countries to present a proper management plan for local situations and propose development plans for the early settlement of component control.

• Journal of Wetlands Research
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• v.19 no.3
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• pp.271-278
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• 2017

Low impact development (LID) technology has been recently applied for the treatment of nonpoint source pollutants. Rain garden is one of the widely used LIDs since it utilizes various mechanisms such as biological and physico-chemical treatment to reduce pollutants. However, problem such as clogging has been one of the issues encountered by the rain garden that do not undergo constant maintenance. Therefore, this research was conducted to develop and determine the component arrangement of a rain garden system for a more efficient volume and pollutant reduction. Two hybrid rain garden systems having different characteristics were developed and evaluated to determine the optimum design and arrangement of the system. The results showed that the components arranged in a series manner showed a volume reduction of 93% and a pollutant reduction efficiency of approximately 99%, 93% and 95% was observed for particulates, nutrients and heavy metals, respectively. While when the system is connected in a combined series-parallel, the volume and average pollutant reduction efficiency for the TSS, nutrients and heavy metals are 65%, 94%, 80% and 85%, respectively. Moreover, the component arrangement in the order of sedimentation tank, infiltration tank and plant bed exhibited a high pollutant reduction efficiency compared when the infiltration tank and plant bed were interchanged. The findings of this research will help in the further development and optimization of rain garden systems.

• Journal of the Korean Society of Systems Engineering
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• v.15 no.2
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• pp.108-115
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• 2019

The activities of managing and controlling the configuration of a system component over its life cycle are critical tasks in developing a high safety system as well as general system development. These configuration management activities should be defined through the management plan at the beginning of the life cycle, and should be performed continuously and systematically until the end of the project after the system or product development is completed. In this study, the configuration management process applied in the development of high safety railway signaling system was introduced and an efficient application proposals of it was proposed. In particular, configuration management through the establishment of a configuration management system based on computer tools is one of the important activities of maintaining the configuration integrity of the system or product.

• 유체기계공업학회:학술대회논문집
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• 2002.12a
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• pp.482-485
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• 2002

Development projects in KAIST rotted to the micro thermal device is introduced. Multi disciplinary research team is composed by combustion group and semiconductor group in KAIST and catalyst research center in KRICT to develop micro thermal/fluidic device and various items are on development. Among the projects, various kind of componenst that is required by the micro thermal devicesystem is introduced. Technology related to development of micro combustor, Micro igniter, micro fabrication of 3D structure, micro reactor and micro catalyst preparation is introduced.

• Clinical and Experimental Pediatrics
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• v.48 no.5
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• pp.469-475
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• 2005

Mother-infant interaction is a crucial component of an infant's cognitive, emotional and behavioral development. Most people are preoccupied with fetal education, the physical conditions of the postpartum mother and baby, and emphasizing an early start in the child's education. However, the effects of a mother's postnatal emotional state on the development of the infant are often overlooked. Postpartum depression is a significant health problem affecting 10-20 percent of new mothers. Recent research findings indicate that the suffering caused by postpartum depression is not limited to these mothers alone; their babies and close family members are vulnerable to short-term and long-term effects as well. This review summarizes the findings of recent research works, in the light of publications within the last seven years.

• Journal of Information Technology Services
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• v.8 no.4
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• pp.87-101
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• 2009

The current information system audit merely inspects a web based information system by focusing on checking items that are extracted from structured and information engineering model and object-oriented component model. As a result, the checking item of web contents and design is inadequate. This paper aims to extract audit framework in order to strengthen the audit of web contents and design during the development of the web based information system and to suggest checking items based on audit framework. For this, the web development process and web site evaluation model were studied, compared, and analyzed with the current information system development audit. From a result of the survey, it was found that the adequacy of the suggested audit framework and audit checking items is above the average value. It is believed that the suggested audit framework is helpful for the audit of web based information system.

• Proceedings of the Korea Contents Association Conference
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• 2004.05a
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• pp.224-228
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• 2004

Various web_based ERP(Enterprise Resource Planning) are developed as the Internet is popularized in If or non If fields. But, in many case of web development method, It is not systematic analysis method, Therefor developer have difficulties with applying the development methods for a large scale application. this approach is studied on design pattern analysis of web ERP for the rapid and efficient development method. as this approach, various design pattern of web and ERP can be used in development method of component generation.

• Journal of the Korean Society of Propulsion Engineers
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• v.12 no.5
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• pp.73-78
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• 2008

The development of turbopump in Korea has been practically started from 1999. Recently, the turbopump for a LRE with 30-ton level thrust has been successfully developed, which is able to work for all the required LRE regimes. This success is considered as a breakthrough in development of LRE because the turbopump, a core component of LREs, has been considered as a critical barrier in domestic technology point of view. In this paper, status of the turbopump development in Korea is provided and some suggestions are made for the prospective future.