• Journal of the Korea Institute of Military Science and Technology
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• v.10 no.2
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• pp.5-11
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• 2007

In digital warfare, communications between combat vehicles should be managed and synchronized in order to ensure the survivability of vehicles. Embedded battle management systems is designed to share battle information with combat vehicles in real-time. In this study, the details of embedded battle management systems which are successfully implemented in combat vehicles are presented.

• Proceedings of the Korea Database Society Conference
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• 1998.09a
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• pp.139-161
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• 1998

21세기 정보화 사회는 방대한 양의 정보가 다양한 형태로, 언제, 어디서나 손쉽게 구해질 수 있으며, 인간의 지적 기능을 정보통신기술이 대신할 수 있게 되어 우리의 경제 행위, 사회 생활, 가치관도 크게 변화될 것으로 전망된다. 그 중에서도 가장 두드러진 변화는 지식의습득보다는 지식을 이용하여 새로운 지식을 창조할 수 있는 능력이 중요한 가치로 인식되고 있다는 점이다. 정보화 사회에 부응하여 새로운 과학기술, 새로운 지식 그리고 새로운 문화의 창조력을 갖는 국민의 지적 능력을 개발하고, 교육의 틀을 바로 세우기 위한 교육개혁이 추진되고 있다.(중략)

• Journal of Scientific & Technological Knowledge Infrastructure
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• s.6
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• pp.136-139
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• 2001

풍동과 같은 고가의 실험 장비가 필요하고 결과를 얻는데까지 많은 시간과 비용이 소요되는 단점이 있습니다. 전산유체역학은 이러한 문제점들을 보완할 수 있는 휼륭한 대안으로 인정받고 있습니다. 자연계에서 공기나 물 등의 유체가 우리의 관심 대상인 비행기, 자동차 등의 물체 주위를 흘러갈 때 생기는 물리 현상들은 보존의 법칙과 열역할 법칙에서 얻어지는 편미분 방정식들로 나타낼 수 있습니다. 이러한 자연계의 법칙을 나타내는 복잡한 방정식을 컴퓨터로 해석하여 데이터를 얻는 수치적인 실험 혹은 시물레이션을 전산유체역할 이라고 부릅니다.

• Annual Conference of KIPS
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• 2013.11a
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• pp.211-213
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• 2013

TCP는 네트워크에서 손실 없이 데이터를 전송하는 전송 프로토콜이다. TCP는 전송 초기에 대역폭을 알지 못하는 상황에서 혼잡 윈도우의 지수적 증가를 통하여 전송하는 슬로우 스타트 단계를 수행한다. 지수적 증가의 특성으로 말미암아 폭주 가능성이 발생하고, 이는 네트워크의 변동성이 심할수록 가중된다. 본 논문에서는 이러한 문제점을 해결하기 위해 기존의 Hybrid Start 방법을 개선한 통계적 슬로우 스타트 방법을 제안하며 이를 통하여 TCP 성능을 개선한다.

• Journal of Korean Library and Information Science Society
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• v.54 no.3
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• pp.321-346
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• 2023

A data paper describing research data helps credit researchers producing the data while helping other researchers verify previous research and start new research by reusing the data. Publishing a data paper and depositing data to a public data repository are increasing with these benefits. A domestic academic society that plans to publish data papers faces challenges, including timely acquiring tremendous knowledge concerning data paper structures and templates, peer review policy and process, and trustworthy data repositories, as a data paper has different characteristics, unlike a research paper. However, the need for more research and information concerning the critical elements of data paper and the peer-review process makes it difficult to operate for data paper review and publication. To address these issues, we propose essential concepts of the data paper and the data paper peer-review, including the process model of the peer-review with in-depth analysis of five data journals' data paper templates, articles, and other guides worldwide. Academic societies intending to publish or add data papers as a new type of paper may establish policies and define a peer-review process by adopting the proposed conceptual models, effectively streamlining the preparation of data paper publication.

• Journal of KIISE
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• v.43 no.10
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• pp.1165-1172
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• 2016

In cloud storage environment, deduplication enables efficient use of the storage. Also, in order to save network bandwidth, cloud storage service provider has introduced client-side deduplication. Cloud storage service users want to upload encrypted data to ensure confidentiality. However, common encryption method cannot be combined with deduplication, because each user uses a different private key. Also, client-side deduplication can be vulnerable to security threats because file tag replaces the entire file. Recently, proof of ownership schemes have suggested to remedy the vulnerabilities of client-side deduplication. Nevertheless, client-side deduplication over encrypted data still causes problems in efficiency and security. In this paper, we propose a secure and practical client-side encrypted data deduplication scheme that has resilience to brute force attack and performs proof of ownership over encrypted data.

• Journal of the Korea Institute of Military Science and Technology
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• v.21 no.5
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• pp.599-606
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• 2018

Failure data of systems in many field can be erroneous, which influences the reliability analysis of the systems. The general form of failure data is right censored data with accurate time information. But due to its nature of data collection in the military field, failure time of one-shot weapon systems can have errors which are related to the maintenance period. So this paper suggests a model that can reduce the error by utilizing interval censored data as an alternative to right censored data in weibull distribution.

• Journal of the Korea Institute of Military Science and Technology
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• v.16 no.3
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• pp.304-313
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• 2013

Wireless Sensor Networks, especially supporting for surveillance service, are one of the core properties of network-centric warfare(NCW) that is a key factor of victory in future battlefields. Such a tactical surveillance sensor network must be designed not just for energy efficiency but for real-time requirements of emergency data transmission towards a control center. This paper proposes efficient clustering-based methods for supporting mobile sinks so that the network lifetime can be extended while emergency data can be served as well. We analyze the performance of the proposed scheme and compare it with other existing schemes through simulation via Qualnet 5.0.

• Journal of the Korea Institute of Military Science and Technology
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• v.14 no.1
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• pp.106-113
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• 2011

This paper describes Data Acquisition & Analysis System(DAS) for analysis of the multi-function radar. There are various information - beam probing data, clutter map data, plot data, target tracking data, RT tracking data, radar signal processing data, interface data - this device saves. The most important thing of data analysis is that a researcher gets a view of the whole data. The DAS intergrates with all of the data and provides overall information on the time matters occur. This is very useful advantage for approaching the matter easily. System algorithms of multi-function radar are improved by using this advantage. As a result of, range blank region have fallen about 72% and it is able to keep track in jammer environment.

• Journal of the Korea Institute of Military Science and Technology
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• v.11 no.6
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• pp.55-62
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• 2008

An Estimation of VHF datalink range for EW(Electronic Warfare) equipment in the sea environment was studied to predict the datalink range between transmitting and receiving station. We consider refraction and reflection in addition to the basic radar equation. The reflection especially includes propagation factor in case of spherical earth as well as flat earth. The estimation result can predict the real datalink range within 5% error.