• Science of Emotion and Sensibility
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• v.15 no.3
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• pp.367-380
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• 2012

The purpose of this research was to implement and verify an information retrieval(IR) system based on users' relevance criteria for information search tasks. For this purpose, we implemented an IR system with a dynamic ranking model using users' relevance criteria varying with the types of information search task and evaluated this system through user experiment. 45 participants performed three information search tasks on both IR systems with a static and a dynamic ranking model. Three Information search tasks are fact finding search task, problem solving search task and decision making search task. Participants evaluated top five search results on 7 likert scales of relevance. We observed that the IR system with a dynamic ranking model provided more relevant search results compared to the system with a static ranking model. This research has significance in designing IR system for information search tasks, in testing the validity of user-oriented relevance judgement model by implementing an IR system for actual information search tasks and in relating user research to the improvement of an IR system.

• Journal of the Korean Society for Railway
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• v.19 no.1
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• pp.29-37
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• 2016

The type approval system of the railway safety law, which was enforced in 2014, has been preferentially applied to the field of railway vehicles. The type approval system addresses railway vehicles and railway constituents. Unlike the previous system, it requires serial verification stages divided, in consecutive order, into verification of design compatibility and conformity and type test. These stages are in accord with international certification systems including TSI certification of the European commission. This study has been carried out to find and meet the design requirements for a coupler head, which is a part of the automatic coupler system; requirements were drawn from TSI and technical specifications that are subordinate to the domestic railway approval system. Through this study, it has been found that there exist 34 design requirements to acquire a complete coupler head. Among those requirements, 32 were verified by document inspection and two were able to be verified by performing FEA and gathering range analysis data.

• Proceedings of the Korea Institutes of Information Security and Cryptology Conference
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• 2002.11a
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• pp.233-236
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• 2002

디지털 서명의 정당성을 검증하기 위해서는 서명자 공개키의 유효성을 인증해야 한다. 이 때, PKI 기반의 인증서를 통해 인증을 수행한다면, 무선 인터넷이라는 특성에 따른 보안상의 문제가 있을 뿐만 아니라 비효율적이다. 그런데 별도의 인증서 검증이 필요 없는 개인식별정보 자체를 공개키고 사용한다면 인증서 검증을 위한 무선 인터넷에서 유선 인터넷으로의 접속 없이 서명의 검증이 가능하게 되고, 무선망만을 이용한 통신이 가능하게 된다. 본 논문에서는 이와 같이 이동 통신 환경에 적합하도록 개인식별정보를 공개키고 사용하는 디지털 서명 알고리즘을 제안한다.

• Aerospace Engineering and Technology
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• v.6 no.1
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• pp.103-108
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• 2007

Eurostar 3000 AOCS is optimized for telecommunication mission with no strong requirement on attitude stability and has therefore to be upgraded to comply with COMS high stability requirements for the optical observations. This COMS configuration constraint induces specificities for the wheel. The aim of this analysis is to verify the electrical compatibility of the interfaces which exist between COMS wheels and external equipments. For each interface, this study checked the compatibility between equipments for the power links, commands, digital telemetry, analog telemetry, and failure condition or AIT errors. In addition with this interface compatibility verification, this study outputs electrical and manufacturing recommendations to be applied at harness level.

• Proceedings of the Korea Information Processing Society Conference
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• 2008.11a
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• pp.1232-1235
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• 2008

TTCN-3(Testing & Test Control Notation Version 3)은 국제 표준 테스팅 언어이다. TTCN-3는 다양한 통신 프로토콜이나 장치간의 연동성을 검증하기 위한 적합성 시험을 할 수 있고, 프로토콜이나 통신 장치가 표준에 적합하게 구현되었는지를 검증할 수 있다. 본 논문에서는 TTCN-3을 사용하여 종단과 종단간의 연결설정의 확립의 인증성 시험에 대한 프로토콜 장치간의 상호 여동성을 보장하기 위한 적합성 시험을 제안하고, 산호 연동성 시험과 장치에 구현된 프로토콜이 표준 구격에 적합한지를 시험하는 예를 시험한다.

• The KIPS Transactions:PartB
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• v.11B no.7 s.96
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• pp.759-768
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• 2004

Recently the biometric recognition technology is intensively studied and the standardization of the technology has been highly demanded for its commercialization. Currently many blometric recognition products are being developed based on the BioAPl(Biometric Application Program-ming Interface) specification. However, the reliable testing tools (or scenarios) to evaluate performance and conformance of the products are not shown yet. In this paper, a conformance testing method is presented, which verifies a biometric recognition system to meet the requirements of the BioAPl standard. Two different testing procedures are used in the proposed method. The first procedure evaluates that each functions offered in the BioAPl specification are correctly implemented and that the functions are actually used in the system. Through the Procedure, a BSP(Biometric Service Provider) system is executed on the framework of the BioAPl functions. It requires selection of parameters and prece-dent functions that should be executed first. The second procedure evaluates the abilities of module management, handling operations and ver-ification process by the analysis of the test cases. It tests the correctness of the system operation when a testing scenario is given. The proposed testing method is applied on a fingerprint verification BSP using the sample BSP provided by the BioAPl consortium. The experimental results shows the benefits of the proposed testing method.

• Journal of Aerospace System Engineering
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• v.17 no.5
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• pp.42-57
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• 2023

In this paper, to increase the research capability of flight missions and maintenance in operating military aircraft, we studied the requirements for additional mounting of flight video and data recorders and safety verification methods. The verification process of the recorder equipment itself, structural safety in the aircraft system, power and electrical safety, electromagnetic compatibility, and impact of airworthiness are described in accordance with military standards and operating environment requirements. In addition, through ground/flight tests, the results of functional operation suitable for the influence and demand of interference between the flight video and data recorder and other systems are also presented.

• The Bulletin of The Korean Astronomical Society
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• v.37 no.2
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• pp.133.1-133.1
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• 2012

전자파설계는 위성의 전력시스템, 통신시스템 뿐만 아니라 구조체 등 위성시스템 전반에 걸쳐서 종합적으로 고려가 되어야 하며, 이를 위해서는 개발 초기단계에서부터 시스템 설계에 반영되어야 한다. 위성시스템의 상세 설계가 끝난 후에는 시스템에 구현된 전자파 설계의 적합성을 검증하여야 하며 이는 해석 및 시험을 통해 이루어진다. 본 논문에서는 저궤도 중형급 위성이 우주환경에서 전자파적합성을 이루기 위한 설계 기법 및 전자파환경에 대한 적합성 검증과정에 대해서 다루고 있다. 저궤도 중형급 위성시스템에 대하여 구조물의 전자기적 특성을 정의하는 것부터 우주환경에서 위성의 RF호환성에 이르기까지 부품단위에서부터 시스템 수준까지의 전자파 설계 기준과 각 단계별로 전자파적합성을 검증하기 위한 방법 및 절차에 대해서 기술한다.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.13 no.1
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• pp.69-85
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• 2003

In this paper, we discuss a validation test for cryptographic algorithms. The cryptographic algorithms decide on the security and the confidence of a security system protecting sensitive information. So. the implementation of cryptographic algorithms is very critical of the system. The validation lest specifies the procedures involved in validating implementations of the cryptographic standards and provides conformance testing for components or procedures of the algorithm. We propose a SEED Validation System(SVS) to verify that the implementation correctly performs the SEED algorithm. The SVS is composed of two types of validation tests, the Known Answer test and the Monte Carlo test. The System generates the testing data for the Known Answer tests and the random data for the Monte Carlo tests. This system can be used to validate and certify the cryptographic product.

• Journal of the Korean Society of Marine Environment & Safety
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• v.29 no.7
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• pp.871-878
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• 2023

This paper showcases the study of 150 Coast Guard officers on how work environment compatibility impacts their organization and job attachment. The independent variable, work environment compatibility, is separated into three sub-variables, which are organization compatibility, job compatibility, and supervisor compatibility. The study's results show that job attachment is only influenced by job compatibility while organization attachment is influenced by all three; organization, supervisor, and job compatibility. With these results, we can make suggestions for the development of the Coast Guard organization and further research based on individual characteristics.