• Journal of the Korea Institute of Military Science and Technology
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• v.15 no.4
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• pp.467-474
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• 2012

One of the interoperability management activity in Korean military is interoperability level assessment. The concept of interoperability levels causes the assessed result to be uncertain and unreliable, despite the activity contributes to secure interoperability requirements of systems consistently. In this paper, I suggest Korea Interoperability Management(KIM) model which is independent of interoperability levels especially specified in LISI model, in order to support more practical and reliable interoperability management.

• Journal of Power Electronics
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• v.17 no.3
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• pp.725-732
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• 2017

This paper proposed a real-time, low-cost, fast transistor open-circuit fault diagnosis method for voltage-source inverter fed induction motors. A transistor open-circuit changes the symmetry of the inverter topology, leading to different similarities among three phase load currents. In this paper, dynamic time warping is proposed to describe the similarities among load currents. The proposed diagnosis is independent of the system model and needs no extra sensors or electrical circuits. Both simulation and experimental results show the high efficiency of the proposed fault diagnosis method.

• Proceedings of the Korean Information Science Society Conference
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• 2004.04b
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• pp.418-420
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• 2004

정보화가 진전됨에 따라 많은 컴퓨터 시스템이 개발되어 사용되고 있다. 대부분의 컴퓨터 시스템들이 초기에는 독자적인 운영에 만족하였으나 시스템의 효율성이나 사용자의 요구로 인하여 시스템간의 정보교환에서 기능교환에 이르기까지 정보시스템의 상호운용성이 시스템의 성능을 측정하는 중요한 요소가 되어가고 있다. 그리고 컴포넌트 기반의 새로운 소프트웨어 개발 패러다임이 발전하면서 컴포넌트의 상호운용성과 재사용성을 이용한 시스템 개발이 시도되고 있고 컴포넌트 개발 방법론 또한 발전하고 있다. 그러나 정보 시스템의 상호운용성에 관한 체계적인 연구는 현재 미비한 실정이다. 본 논문에서는 미 국방성에서 정보시스템의 상호운용성 측정 및 평가를 위하여 사용하는 LISI 모델을 확장하여 컴포넌트 기반 시스템외 상호운용성을 측정 및 평가할 수 있는 상호운용 능력 모텔을 개발하였다. 본 논문에서 제시하는 컴포넌트 상호운용 능력 모델은 컴포넌트 기반 시스템의 개발 프로세스에 따라 각 개발 단계에서 상호운용성을 측정할 수 있도록 고안되었다. 따라서 본 논문의 상호운용 능력 모텔은 상호운용 성숙도 모델로 확장하여 기 개발된 시스템의 상호운용 성숙도 측정이나 향상에 사용할 수 있다.

• Journal of Information Technology Services
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• v.7 no.4
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• pp.119-138
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• 2008

The KERIS having a central role in education information has selected IT Architecture as a means to provide high quality service for customers; based on this, it intends to lay the groundwork for general information projects to come and perform the IT Governance, the management system for information system. The KERIS set up a mid- and long-term road map in order to introduce and utilize ITA and has been preparing for the introduction of architecture to a proper business sector using architecture approaches by segments(sectors) since 2005. This study presented several cases which organizations can refer to when they introduce architecture while promoting an architecture project; and the details were discussed as follows.ition stage, but planned decision-making will take over when it is proven to be effective with information searching.

• Journal of Information Technology Services
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• v.12 no.3
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• pp.289-309
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• 2013

Korea has been ranked at the top consecutively in UN e-Government Survey. This fact reflects consistent efforts by public institutes in Korea. However, there were some duplicate efforts and inefficiency in the investment into IS(information systems). In other words, management and decision making on e-government have yet to improved. Accordingly, governmental institutes have long been promoting policies for EA in order to carry out and manage effectively IT projects including the e-Government projects. EA is being regarded as a means to facilitate IT Governance for systematic management of IT projects, A major objective is to firmly establish the decision making process for IS investment through EA, since the each institute is a large organization with so complicated and specialized demand for IS. As a result, systematic decision making is becoming quite difficult. Thus, this study attempts to identify different types of IT investment decision making and to figure out the relationship between the decision types and the organizational performance of public institutes where EA was implemented.

• Structural Engineering and Mechanics
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• v.52 no.1
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• pp.173-203
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• 2014

The cross-section warping due to the passage of high-speed trains can be a relevant issue to consider in the dynamic analysis of bridges due to (i) the usual layout of railway systems, resulting in eccentric moving loads; and (ii) the use of cross-sections prone to warping deformations. A thin-walled beam formulation for the dynamic analysis of bridges including the cross section warping is presented in this paper. Towards a numerical implementation of the beam formulation, a finite element with seven degrees of freedom is proposed. In order to easily consider the compatibility between elements, and since the coupling between flexural and torsional effects occurs in non-symmetric cross-sections due to dynamic effects, a single axis is considered for the element. The coupled flexural-torsional free vibration of thin-walled beams is analysed through the presented beam model, comparing the results with analytical solutions presented in the literature. The dynamic analysis due to an eccentric moving load, which results in a coupled flexural-torsional vibration, is considered in the literature by analytical solutions, being therefore of a limited applicability in practice engineering. In this paper, the dynamic response due to an eccentric moving load is obtained from the proposed finite element beam model that includes warping by a modal analysis.

• Journal of Information Technology Services
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• v.5 no.3
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• pp.63-82
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• 2006

This study is an approach to solve the problem concerning informatization and its investment of the existing information system. In this regard, IT Architecture is becoming a prominent figure, and great efforts are being taken to establishment of related infrastructure environment such as the 1st and 2nd pilot programs, ITA related law's legislation, and development of a reference model and its guidance. Especially, with 'the bill on the introduction and management of the information system' passing the National Assembly, all sorts of environment involved for the introduction of IT Architecture in the future such as establishment of the political foundation for IT Architecture introduction of public organizations, and integrated IT Architecture management system(G-ITAMS) is establishing the constituency. Therefore, this study aims to grasp accurately the actual condition concerning the introduction and utilization of IT Architecture at domestic public organizations, which was followed by investigation to present the right direction in the future, and the findings were discussed in the main body as follows:

• Parasites, Hosts and Diseases
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• v.55 no.3
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• pp.267-285
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• 2017

Angiostrongylus cantonensis invades the central nervous system (CNS) of humans to induce eosinophilic meningitis and meningoencephalitis and leads to persistent headache, cognitive dysfunction, and ataxic gait. Infected mice (nonpermissive host), admittedly, suffer more serious pathological injuries than rats (permissive host). However, the pathological basis of these manifestations is incompletely elucidated. In this study, the behavioral test, histological and immunohistochemical techniques, and analysis of apoptotic gene expression, especially caspase-3, were conducted. The movement and motor coordination were investigated at week 2 post infection (PI) and week 3 PI in mice and rats, respectively. The cognitive impairs could be found in mice at week 2 PI but not in rats. The plaque-like lesion, perivascular cuffing of inflammatory cells, and dilated vessels within the cerebral cortex and hippocampus were more serious in mice than in rats at week 3 PI. Transcriptomic analysis showed activated extrinsic apoptotic pathway through increased expression of TNFR1 and caspase-8 in mice CNS. Immunohistochemical and double-labeling for NeuN and caspase-3 indicated the dramatically increased expression of caspase-3 in neuron of the cerebral cortex and hippocampus in mice but not in rats. Furthermore, western-blotting results showed high expression of cleaved caspase-3 proteins in mice but relatively low expression in rats. Thus, extrinsic apoptotic pathway participated in neuronal apoptosis might be the pathological basis of distinct behavioral dysfunctions in rodents with A. cantonensis infection. It provides the evidences of a primary molecular mechanism for the behavioral dysfunction and paves the ways to clinical diagnosis and therapy for A. cantonensis infection.