• Nuclear Medicine and Molecular Imaging
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• 제43권3호
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• pp.179-195
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• 2009

Scince $^{201}$TI was introduced as a myocardial perfusion imaging agent in the early 1970s, scintigraphic evaluation of myocardial perfusion for the diagnosis of coronary artery disease is a valuable noninvasive diagnostic imaging modality. Stress radionuclide myocardial perfusion imaging is widely accepted to have high diagnostic and prognostic use in the assessment of patients with known or suspected coronary artery disease. With wise use of this nonivasive imaging technique, more patients are referred for stress perfusion imaging. Until now various protocols for stress testing and myocardial imaging were developed and used in worldwide. This article presented various protocols of stress testing and myocardial imaging for clinical use.

• 전기학회논문지P
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• 제53권1호
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• pp.32-39
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• 2004

Railway signaling systems consist of several vital computerized equipment such as CTC(Centralized Traffic Control), EIS(Electronic Interlocking System), ATC(Automatic Train Control) and so on. Currently, the project for development of railway signaling systems for the next-generation high-speed train is progressed according to the G7 project and railway signaling related several companies and research institute are joined this project consortium. The railway signaling systems, being developed in this project, called as a kTCS(Korean Train Control System), is composed of kTCS-CTC, kTCS-IXL, kTCS-ATC and etc. kTCS signaling systems have to be operated at the laboratory testing level as integrated signaling systems by interface between each railway signaling systems before railway field installation and revenue service. To solve this matter, communication protocols between each signaling equipment are designed and message codes for each defined protocols have defined. And also several equipment has developed for the railway integrated signaling systems for laboratory testing. We has plentifully tested and verified the designed protocols and the characteristics of integrated railway signaling systems with our developed each kTCS signaling equipment and communication protocols. In this paper, the integrated kTCS system including communication protocols is presented.

• International Journal of Fluid Machinery and Systems
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• 제1권1호
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• pp.33-37
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• 2008

EquiMar (Equitable Testing and Evaluation of Marine Energy Extraction Devices in terms of Performance, Cost and Environmental Impact) is one of the first round of energy projects under the European Commissions 7th Framework Programme (FP7). The three year EquiMar project aims to deliver a suite of protocols for the evaluation of both wave and tidal converters, harmonizing testing and evaluation procedures across the wide range of available devices, accelerating adoption through technology matching and improving the understanding of both environmental and economic impacts associated with the deployment of devices. The EquiMar protocols will cover site selection, initial design, scaling up of designs, the deployment of arrays and environmental impact assessment as well as economic issues. EquiMar will build on existing protocols, e.g. UK DTI Marine Renewables Development Fund (MRDF) protocols for wave and tidal energy, and engage with international standards setting activities, e.g. IEC TC114.

• International Journal of Naval Architecture and Ocean Engineering
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• 제12권1호
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• pp.881-891
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• 2020

In recent years robotics has become an important resource in engineering. Adoption of Robotics and Autonomous Systems (RAS) in activities related to ship inspections has obvious potential advantages, but also arises particular challenges, both from technical and legal viewpoints. The ROBINS project (ROBotics technology for INspection of Ships) is a collaborative project co-funded within the H2020 EU Research and Innovation programme call, aimed at filling the gap between current ship inspections approach and available robotic technology, both from technological and regulatory point of view. Main goal of the present work is to highlight how ship inspections are currently carried out by humans, how they could be improved using RAS, even if not completely autonomous for the time being, at least in selected operational scenarios and how the performances of RAS platforms can be tested to assess their effectiveness in carrying out surveys onboard. In such a framework, a testing facility aimed at assessing RAS' capabilities as well as providing suitable environment for their development has been built and it is still under development along with dedicated testing protocols, able to assess the equivalence between human and RAS inspection of ship and marine structures. The features of a testing facility where RAS can be tested and the testing protocols are presented, showing how technological and regulatory gaps are filled.

• 한국통신학회논문지
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• 제15권5호
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• pp.434-445
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• 1990

OSI 모델에 입각한 기능확인 위주의 종래의 단순한 프로토콜 시험기법은 성능시험, 적합성시험, 상호접속시험으로 세분화되고 대상 프로토콜도 일대일, 일대다수(Point-to -multipoint)로 확장되었다. 본 논문에서는 시험항목 생성부분과 시험결과 분석기능을 공통 플랫폼으로 하고 시험 대상 프로토콜의 성격과 시험목적에 따라서 모듈화된 시험수행기부분을 선택적으로 변경하는 다기능 프로토콜 시험시스템을 제시하였다. 본 논문은 다기능 시험시스템 설계에 입각한 예로서 망루팅 프로토콜 시험시스템, 트랜스포트 프로토롤 시험시스템의 구조를 보인다.

• 한국정보과학회논문지:정보통신
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• 제28권2호
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• pp.277-287
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• 2001

통신 프로토콜의 상호운윤성을 시험하기 위한 시험경우를 생성하는 방법론이 논문[1, 2, 3]에서 제안되었고 TCP와 ATM프로토콜에 적용되었다. 이들 방법론으로 생성된 시험경우는 제어부분만을 고려하고 있다. 그러나 실제 시험에 있었서는 데이터를 고려하여야 하며 완전한 시험이 되기 위해서는 이들 변수들이 가질 수 있는 모든 값에 대한 시험을 거쳐야 하지만 이것은 현실적으로 불가능하다. 본 논문에서는 데이터를 포함하는 시험을 하기 위하여 논문[1]에서 도출한 시험경우에 제어 부분과 데이터 부분을 동시에 고려하여 TCP의 연결설정 절차에 대한 시험경우를 도출한다. 이 과정에서 시험경우의 수가 너무 커지는 것을 피하기 위해 최소의 실험횟수로 최대의 정보를 얻을 수 있도록 실험계획법을 이용한다. 실험계획법은 적합성 시험에는 적용되었지만 아직 상호운용성 시험에는 적용되지 않았다. 이 방법을 통해 데이터 부분을 포함하는 상호운용성 시험경우를 생성하고 시험의 검출력을 유지하면서 최소화된 시험경우로 상호운용성 시험을 할 수 있는 기능성을 보인다

• 대한임베디드공학회논문지
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• 제2권4호
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• pp.209-213
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• 2007

In this paper, we propose more efficient implementation architecture for realizing combination of heterogeneous routing protocols in wireless mesh routes. For realizing heterogeneous routing protocol in wireless mesh router, the following should be considered; which position in OS platform protocols should be implemented, how to define the common API for multiple routing protocols, how to provide architecture for providing high data transfer throughput and for supporting multi platform, and finally how to verify the throughput of protocol by using simulator. For solving those consideration, we propose HRPC(Heterogeneous Routing Protocol Coordinator) and describe the method for testing the protocols.

• 한국통신학회논문지
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• 제22권10호
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• pp.2348-2356
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• 1997

본 고에서는 ATM망에 연결되는 단말기(TE)가 국제 기관(ITU, ISO 등)에서 제정한 표준대로 구현되어 의도된 대로 기능을 수행하는지 확인하기 위한 적합성 시험 방법 및 결과 분석 방법에 대해서 기술하였다. 적합성 시험에 관한 설명을 하기 위해서 선정한 ATM AAL 프로토콜(SSCOP)애 대한 기본 표준은 ITU-T Q.2110 과 ATM Forum UNI 3.1에 각각 규정되어 있으며, 이에 대한 시험 표준은 ATM Forum 95-1459R2에 규정되어 있다. 본 고에서는 적합성 시험을 위해서 관련 표준들을 어떻게 상호 협력해서 적합성 시험 환경을 구축하고, 이러한 환경에서 적합성 시험을 수행하고 생성된 결과를 어떻게 분석해야 히는지에 대한 방법에 대해서 기술하였다. 효율적으로 설명하기 위해서 임의의 시험 항목은 선정하였으며 이 시험 항목을 수행한 시험 결과를 분석하였다. 시험 항목에 대한 적합성 시험 수행 및 결과에 대한 분석 방법은 다른 여러 시험 항목 등에서도 적용되며,ATM망의 다른 통신 프로토콜들(signaling, AAL5 ATM layer, SSCF 등)과 다른 통신망(ISDN, SS7, IN 등)에서 사용되는 프로토콜들에 대해서도 동일하게 적용된다.

• ETRI Journal
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• 제33권3호
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• pp.470-473
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• 2011

In this letter, we propose blackbox and scenario-based testing of multiplayer online games as well as simple load testing. Game testing is done from outside the source code, and the access to the source code is not required to testers because the game logic is described with a game description language and virtual game map. Instead of using a subset of the main game client for the test client, only game packet protocols and the sequence of packets are analyzed for new game testing. In addition, complex and various scenarios can be tested through combining defined actions. Scenario-based testing helps testers mimic real testing environments instead of doing simple load testing and improves the productivity of game testing.

• ETRI Journal
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• 제10권2호
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• pp.3-12
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• 1988

Several ISDN (Integrated Services Digital Network) protocols have implemented at ETRI (Electronics and Telecommunications Research Institute) in an experimental network so that functional characteristics of the protocols under test could be certified against their protocol specifications with the help of the ETRI protocol test facilities. This paper describes ETRI protocol test architecture and its application to testing the NSP (Network Service Part) protocols : MTP (Message Transfer Part) level 3 and SCCP (Signalling Connection Control Part) of the CCITT CCS (Common Channel Signalling ) system No. 7 The test architecture presented here allows tests for two different protocol classes : peer-to-peer and multipeer protocolos. Some extensions are made to the conventional test architectures, namely the test coordination, test result transfer and network state observation method.