• 한국군사과학기술학회지
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• 제23권4호
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• pp.389-398
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• 2020

Test cases in the existing weapon system software were created manually by the tester analyzing the test items defined in the software integration test procedure. However, existing test case generation method has two limitations. First, the quality of test cases can vary depending on the tester's ability to analyze the test items. Second, excessive time and cost may be incurred in writing test cases. This paper proposes a method to automatically generate test cases based on the requirements model and specifications to overcome the limitations of the existing weapon system software test case generation. Generate test sequences and test data based on the use case event model, a model representing the requirements of the weapon system software, and the use case specification specifying the requirements. The proposed method was applied to 8 target models constituting the avionics control system, producing 30 test sequences and 8 test data.

• 한국군사과학기술학회지
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• 제27권3호
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• pp.387-394
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• 2024

This paper describes a progressive test and evaluation strategy for verification of Korean Fighter eXperimental (KF-X) AESA(Active Electronically Scanned Array) radar development. Three progressive stages of development test and evaluation were officially performed from simulated test conditions to actual operating conditions according to standards: radar function/performance and avionics integration. KF-X AESA radar development is repeatedly verified by progressive stages consisting of five tests: Roof-lab ground test, System Integration Laboratory(SIL) ground test, Flying Test Bed(FTB) test, KF-X ground test, and KF-X flight test. As a result, the risk factor decreases as stages and tests progress. Therefore, development test and evaluation of KF-X AESA radar are successfully performed at low development risk.

• 한국항행학회논문지
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• 제23권5호
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• pp.345-351
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• 2019

항공용 SIL은 항공전자시스템의 통합 및 검증에 사용되는 통합시험환경이다. 최근에는 항공전자시스템의 요구도 검증을 시스템 통합 측면에서부터 충분히 고려하기 위하여 항공용 SIL 분야의 개발 참여를 비행체 요구분석 단계부터로 앞당기고 있으며, 비행체의 체계종합 일정에 영향을 주지 않도록 항공용 SIL의 개발 비용 및 기간을 최소화하기 위한 노력을 꾸준히 진행하고 있는 추세이다. 본 논문에서는 항전체계 검증에 사용되는 항공용 SIL의 모델링 방법 표준화를 통한 개발기간/비용 단축 및 유지보수성 증대를 위하여 항공용 SIL에 적용 가능한 모델링 형식론 기반의 항공용 시뮬레이션 모델 프레임워크(ASMF)를 제안한다.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2005년도 봄학술 발표회 논문집(I)
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• pp.9-14
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• 2005

The Burj Dubai Project will be the tallest structure ever built by man; when completed the tower will be more than 700 meter tall and more than 160 floors. The early integration of aerodynamic shaping and wind engineering considerations played a major role in the architectural massing and design of this residential tower, where mitigating and taming the dynamic wind effects was one of the most important design criteria. This paper presents a brief overview of the structural system development and considerations of the tower and discusses the construction planning of the key structural components of the tower.

• 한국군사과학기술학회지
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• 제14권3호
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• pp.388-396
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• 2011

Mission Equipment Package(MEP) system is a collection of avionic components that are integrated to perform the mission of the Korean Utility Helicopter(KUH). MEP system development is classified mission-critical embedded system but KUH MEP system developed including flight-critical data implementation. It is important to establish the good development and verification process for the successful system development. This paper describe the development and verification process in each phase for the KUH MEP system. MEP system design is verified through the qualification test, system failure test and compatibility test in System Integration Laboratory(SIL).

• 대한안전경영과학회지
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• 제5권2호
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• pp.67-74
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• 2003

One of the recent trends of cockpit development is to integrate the part of whole cockpit and compartment. The goal of this study is to develop and Analyze User's Convenience for a cockpit prototype based on the design guide of cockpit integration module. The process of this study has been followed analyzing development trend of next generation Automotive cockpit, extracting the design factor needed to making integration module and laying down the design guide of cockpit integration module. After that process, next-generation Automotive cockpit has been embodied as graphical image designing. Henceforth, applying this module to real will be considered after evaluation of utilization. THis study is indicated that one example for evaluation of utilization.

• 제어로봇시스템학회논문지
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• 제18권2호
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• pp.94-102
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• 2012

There have been many homing navigation algorithms for robotic system. In this paper, we suggest a bio-inspired navigation model. It builds path integration based on optical flow. We consider two factors on robot movements, translational movement and rotational movement. For each movement, we found distinguishable optical flows. Based on optical flow, we estimate ego-centric robot movement and integrate the path optimally. We can determine the homing direction and distance. We test this algorithm and evaluate the performance of homing navigation for robotic system.

• 대한감각통합치료학회지
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• 제3권1호
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• pp.1-11
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• 2005

Objective : The purpose of this study was to get the mean of duration of post-rotatory nystagmus test in normal children and to differentiate the duration of post-rotatory nystagmus test between normal children and children with pervasive developmental disorder. Method : 84 subjects were between 3 and 5 years of age and consisted of 64 normal children and 20 children with the pervasive developmental disorder. Analysis of the data was done by using t-test and ANOVA. Results : The results were as follows: 1. Range of duration of post-rotatory nyatagmus test in normal children was $5{\sim}22$second on left and $7{\sim}21$ second on right and the mean was 12.63 second on left and 12.59 second on right. 2. Range of duration of post-rotatory nystagmus test in children with the pervasive developmental disorder was $3{\sim}11$ second on both and the mean was 5.65 second on left and 5.60 second on right. 3. There was no significant difference between males and females with normal children in duration of post-rotatory nystagmus test. However, there was a significant difference of the mean duration between 3 and 5 years old normal group. 4. Children with pervasive developmental disorder significantly have relatively lower duration than the duration of post-rotatory nystagmus test of normal children. Conclusions : The results of the study showed significant difference between normal children and children with pervasive developmental disorder in duration of post-rotatory nystagmus test and suggest that they could be applied to the baseline of clinical therapy.

• 한국항행학회논문지
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• 제8권2호
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• pp.112-119
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• 2004

본 논문에서는 무인기용으로 개발된 자세측정용 GPS/INS 통합 항법 시스템의 설계 개념을 제안하고 비행실험을 통한 성능 평가 결과를 제시한다. 제안하는 시스템은 무인 항공기 자동 비행 시스템의 일부분으로 설계되었고 자세측정용 GPS 수신기, 항법 컴퓨터, 상용의 IMU(Inertial Measurement Unit)로 이루어져 있다. 제안된 항법 시스템은 소형 저가의 구현이 가능하면서도 무인 항공기의 안정된 비행 제어를 위해 요구되는 정확도를 가지는 자세 정보를 제공 할 수 있다. 제안된 시스템을 검증하기 위한 통합 항법 하드웨어와 소프트웨어를 개발하였다. 비행 실험을 통하여 성능 평가를 수행하였다. 비행 실험 결과 개발된 항법 시스템은 GPS 또는 INS 단독보다 정확한 위치, 속도, 자세 정보를 제공하는 것을 확인 할 수 있었고 특히 자세 결과는 기준 자세 시스템과 비교를 통하여 정확도를 확인 할 수 있었다.

• 대한감각통합치료학회지
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• 제7권1호
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• pp.1-12
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• 2009

목적: 본 연구는 감각통합치료를 통해 감각조절장애 아동의 놀이, 사회성, 작업수행도 및 작업만족도, 감각처리에 미치는 효과에 대하여 알아보았다. 연구방법: 연구대상은 만 4~7세의 감각조절장애 아동 5명으로, 실험기간은 2008년 6월에서 11월까지이었다. 감각통합치료는 주 2회(매50분), 총 48회기를 실시하였다. 놀이, 사회성, 작업수행도 및 만족도, 감각처리를 측정하기 위해 Revised Knox Preschool Play Scale(RKPPS), 사회성숙도 검사, Canadian Occupational Performance Measure(COPM), Japanese Sensory Inventory Revised(JSI-2)를 사용하였다. 감각통합치료의 효과를 알아보기 위해 단일집단 사전-사후 설계(one group pretest-posttest design)를 사용하였다. 감각통합치료 사전/사후의 RKPPS, 사회성숙도, COPM, JSI-2의 차이는 윌콕슨 순위검정(Wilcoxon matched-pair signed rank test)을 사용하여 분석하였다. 결과: 감각통합치료 전과 후의 RKPPS(Z=-2.023, p=.043), 사회성숙도(Z=-2.023, p=.043), 작업수행도(Z=-2.023, p=.043) 및 만족도(Z=-2.032, p=.042), 그리고 JSI-2 중 촉각계(Z=-2.032, p=.042) 점수에서 통계적으로 유의한 차이를 보였다. 결론: 본 연구는 감각통합치료가 촉각계 처리와 같은 작업수행요소뿐 아니라 놀이, 사회성과 같은 작업수행영역에도 효과가 있음을 보여주었다. 또한 감각통합 평가 및 중재 시 감각조절장애 아동의 놀이에 대해 고려해보도록 방향을 제시한 것에 의의가 있다. 그러나 연구대상자의 수가 적고, 다양한 환경적 요소에 의해 영향을 받을 수 있으므로 연구결과를 일반화하기에는 어려움이 있다. 따라서 향후 연구에서는 대상 아동의 수를 고려하고, 외적 변인을 제한하며, 타당도와 신뢰도가 높은 자료수집 방법을 사용해야 할 것으로 사료된다.