• Title/Summary/Keyword: Test and evaluation

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A Probabilistic Prediction of Weapon Systems Evaluation Test Execution Ratio and Management Scheme (무기체계 평가시험 수행율의 확률적 예측 및 관리기법)

  • Jang, Young-sik;Han, Sung-hee;Han, Hyun-goo;Mun, Chang-min
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.21 no.2
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    • pp.468-474
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    • 2017
  • A test service for the weapon systems evaluation is one of the most important processes during the weapon systems acquisition or development life cycle. Before completion of weapon systems development, the appropriate evaluation test can reduce risk and expense which might be expected during weapon systems development procedure. In this paper, it is suggested that a probabilistic prediction method based on Monte Carlo simulation for how much the annual weapon systems evaluation test excution ratio can be reached compared to the yearly initial planned test quantity. And then a weapon systems evaluation test quantitative management scheme is suggested to assist decision making for the test schedule manager who can arrange monthly test schedule based on the prediction result of annual test excution ratio. And the proposed method is applied for the weapon systems evaluation firing test data of the 8th directorate, Agency for Defense Development(ADD). And also the application result is examined.

Field Test for Performance Evaluation of a Tubular Turbine in Marine Small Hydro Power Plant (해양소수력발전소 튜블러 수차 성능평가를 위한 현장시험)

  • Hwang, Yeong-Ho;Lee, Young-Ho;Choi, Young-Do
    • Journal of Advanced Marine Engineering and Technology
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    • v.35 no.8
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    • pp.1070-1077
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    • 2011
  • This study includes field test results for performance evaluation of a tubular turbine in marine small hydro power plant. Minimum output power of the tested turbine generator is examined with using of the measured effective head, output power and efficiency. For the rated and maximum output power tests, corrected values from the result of turbine model test are used for the performance evaluation, because experimental conditions of field test at the rated and maximum output powers are restricted correctly. Performance of the test turbine shows good conformance with the suggested guarantee values of output power and efficiency at the measured points of minimum, rated and maximum output power.

Characterization of Test Substance in the GLP (GLP 시험에서의 시험물질 특성파악)

  • Lee, Eun-Jung;Song, Kyung-Seuk;Yu, Il-Je
    • Toxicological Research
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    • v.23 no.2
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    • pp.173-177
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    • 2007
  • The GLP contains specific language concerning characterization of the test, control and reference substances used in toxicity studies. This paper will describe and discuss what types of documents are required to support test/reference substance characterization under GLP system. The purpose of this article is to present an overview of data needed in the characterization package that will adequately define the substance. Most sponsors use a certificate of analysis (COA) to communicate the test sub-stance characterization status information to the contracting research organizations. The COA should provide the test $material^{\circ}{\phi}s$ characterization results, substance storage requirements, expiration dates, verification of the collection of the retention sample, archival location of the data to support the characterization and GLP compliance status of the characterization.

Evaluation of the Safety impact by Adaptive Cruise Control System (자동순항제어기에 의한 안전도 향상 효과 분석)

  • Lee, Taeyoung;Yi, Kyongsu;Lee, Chankyu;Lee, Jaewan
    • Journal of Auto-vehicle Safety Association
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    • v.4 no.1
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    • pp.5-11
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    • 2012
  • This paper discusses the evaluation of the safety impact of the Adaptive Cruise Control (ACC) system in Korea. To evaluate the safety impact, this paper suggests an analysis method by using the test scenario and field operational test data. The test scenario is composed to represent the main component factor of the ACC system and ACC related accident situation such as rear-end collision, lane-change, and road-curvature, etc. Also, from the field operation test data, the system's potential to increase the safety can be measured ideally. Besides, field operational testdata was used to revise the expected safety impact value as Korean road conditions. By using the proposed evaluation method, enhanced safety impact of the ACC system can be estimated scientifically.

Experimental Evaluation Method for Investigating BSR Noise of Vehicle Seats (차량용 시트의 BSR Noise 규명을 위한 시험적 평가방법)

  • Kim, Byung-Jin;Moon, Nam-Su;Park, Jin-Sung;Park, Hyun-Woo
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2010.05a
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    • pp.425-426
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    • 2010
  • Recently, Most of diverse noise of vehicles has decreased competitively according to development of the automotive manufacturing technology. Especially, Passenger car manufacturers has been conducting buzz, squeak and rattle(BSR) noise test as a method of the noise evaluation tests to reduce an unpleasant sound from interior parts on the driving the car. This paper suggest a evaluation method for detecting position of noise source from measured noise signals of vehicle seats during random excitation BSR test. Hereby the BSR test procedure used the test regulation of 'G' company. The detection of noise source positions used the Sound image equipment. Through suggested the test method on this paper, an accurate analysis of noise source occurred in the BSR test will be possible.

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Design and Implementation of Test Management System to Evaluate Efficiency (효율적인 평가를 위한 문항 관리 시스템의 설계 및 구현)

  • Park, Kyung-Tae;Lee, Jae-Mu
    • Journal of The Korean Association of Information Education
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    • v.9 no.2
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    • pp.329-337
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    • 2005
  • Lots of developments and changes are happening with ICT utilization in the field of education. However, most teachers can't feel the practical efficiency in an evaluation. Specially, they are not keeping and using continuously the evaluation result. Therefore they cannot reflect the results in continuous learning activity of a child. We developed the test management system that supplies the forms, which facilitate the control of the various test items and are suitable for the test types. Through this system, teachers can easily design the tests and develop the content of evaluation. They can improve educational efficiency using various perspective evaluation results.

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Development and Validation of Safety Performance Evaluation Scenarios of Autonomous Vehicle (자율주행 안전성 평가 시나리오 개발 및 검증)

  • Chae, Heungseok;Jeong, Yonghwan;Lee, Myungsu;Shin, Jaekon;Yi, Kyongsu
    • Journal of Auto-vehicle Safety Association
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    • v.9 no.1
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    • pp.6-12
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    • 2017
  • Regulation for the testing and operation of automated vehicles on public roadways has been recently developed all over the world. For example, the licensing standards and the evaluation technology for automated vehicles have been proposed in California, Nevada and EU. But specific safety evaluation scenarios for automated vehicles have not been proposed yet. This paper presents safety evaluation scenarios for extraordinary service permission of automated vehicles on highways. A total of seven scenarios are selected in consideration of safety priority and real traffic situation. Six scenarios are relevant with lane keeping and one scenario is relevant with lane change. All scenarios are developed based on existing ADAS evaluation scenarios and repeated simulation of automated vehicle algorithm. Safety evaluation factors as well as scenarios are developed. The safety factors are based on existing ADAS ISO requirements, ADAS safety factors and current traffic regulations. For the scenarios, a hunter vehicle is needed in addition to automated vehicle evaluated. The hunter vehicle performs multiple roles like preceding vehicle, cut-in vehicle and so on. The hunter vehicle is also automated vehicle equipped with high performance GPS, radar and Lidar. All the scenarios can be implemented by driving a lap on a KATRI ITS test track. These scenarios and safety evaluation factors are investigated via both a computer simulation and an experimental vehicle test on the test track. The experimental vehicle test was conducted with two automated vehicles, which are the evaluated vehicle and the hunter vehicle.

Research for Construction Cybersecurity Test and Evaluation of Weapon System (무기체계의 사이버보안 시험평가체계 구축방안 연구)

  • Lee, Ji-seop;Cha, Sung-yong;Baek, Seung-soo;Kim, Seung-joo
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.28 no.3
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    • pp.765-774
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    • 2018
  • As the IT technology develops, the military information system develops to the current IT environment for efficient operation and rapid communication, and the threat of cyber attack against the advanced weapon system using network technology is increasing simultaneously. In order to prevent and mitigate these problems, the United States has applied the cybersecurity test evaluation system from the beginning to the beginning of weapon system development. However, in Korea, the evaluation process of cyber security test is weak, and there is concern about the damage due to cyber attack. In this paper, we analyze cybersecurity test evaluation status of U.S. and domestic weapon systems and propose a solution to the problem of cybersecurity test evaluation system.

The Development of Performance Evaluation System for Air-Operated Actuaotr (공기구동기 성능평가 시스템 개발)

  • Cho T.D.;Yang S.B.;Lee H.Y.;Yang S.M.;Kwon B.S.
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2005.06a
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    • pp.1770-1773
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    • 2005
  • The performance evaluation of AOV(air-operated valve) requires the processes to confirm the actuator system capability. It is necessary to evaluate the thrust of the air actuator for the margin evaluation. In this paper, to evaluate and analysis the air actuator, the performance test system and operating program are developed. This system is composed of several sensors such as pressure sensor, LVDT, and LoadCell which are used to get the data for evaluation. The LabVIEW was used for developing the operating program. The test system and operating program are proved through the actual test of the diaphragm actuator.

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