• 제목/요약/키워드: Integration test

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Estimation of Displacements Using the Transformed Response in Time and Frequency Domain

  • Jung, Beom-Seok
    • International Journal of Ocean Engineering and Technology Speciallssue:Selected Papers
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    • 제6권1호
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    • pp.44-50
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    • 2003
  • If the accelerometers are used in measuring the response, the absolute values of the velocity and displacement are not usually obtainable because their initial values are not accounted for in the integration of the acceleration response. A new dynamic response conversion algorithm of both the time domain and the frequency domain is proposed for the problem in estimating the displacement data by defining the transformed responses. In this algorithm, the displacement response can be obtained from the measured acceleration records by integration without requiring the knowledge of the initial velocity and displacement information. The applicability of the technique is tested by an example problem using the real bridge's superstructure under several cases of moving load. In the response conversion procedure of the frequency domain, the identified response according to the frequency can be estimated by changing over the limits of integration. If the reliability of the identified responses is ensured, it is expected that the proposed method for estimating the impact factor can be useful in the bridge's dynamic test. This method can be useful in those practical cases when the direct measurement of the displacement is difficult as in the dynamic studies of huge structure.

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숲 체험 통합 중재가 재가 암 환자의 우울과 회복탄력성에 미치는 효과 (The Effectiveness of a Forest-experience-integration Intervention for Community Dwelling Cancer Patients' Depression and Resilience)

  • 최연희;하영선
    • 지역사회간호학회지
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    • 제25권2호
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    • pp.109-118
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    • 2014
  • Purpose: This study examined the effectiveness of a forest-experience-integration intervention in community dwelling cancer patients. Methods: The study was done with a nonequivalent control group pretest-posttest design. The subjects of the present study were 53 community dwelling cancer patients who were registered in a community health center in Gyeongsangbuk-do. The subjects were divided into an experimental group (n=26) who participated in the forest-experience-integration intervention and a control group (n=27) who did not participate. Data were collected from May to June in 2011. Collected data were analyzed using SPSS PC+ 19.0 through $x^2$ test, and independent t-test. Results: There were significant differences between the groups in depression (t=-4.51, p<.001), self-regulation resilience (t=6.95, p<.001), interpersonal resilience (t=10.10, p<.001), positivity resilience (t=9.67, p<.001), and total resilience (t=13.93, p<.001) measurements. Conclusion: The forest- experience-integration intervention delivered to community dwelling cancer patients was an effective method for relieving depression and enhancing self-regulation resilience, interpersonal resilience, positivity resilience, and total resilience, and can be utilized as an effective nursing intervention for community dwelling cancer patients.

소형 가스터빈 엔진의 유도탄 체계통합 기술 (Techniques of Airbreathing Propulsion System Integration Using Small Gas Turbine Engine for Subsonic Cruise Missiles)

  • 장종윤;김준;정재원;임진식
    • 한국추진공학회지
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    • 제25권3호
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    • pp.81-88
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    • 2021
  • 아음속 순항 유도탄의 추진시스템은 소형 가스터빈 엔진을 중심으로 공기흡입관, 탄내 연료이송계통 등으로 구성된다. 이는 엔진의 수락시험으로부터 시작하여, 엔진의 여러 기능 및 보기류의 설계수정, 엔진과 연동되는 각종 탄내 장비들의 설계/개발 및 상호 인터페이스 확인을 위한 해석과 통합시험 등으로 완성된다. 여기서는 이와 같은 소형 가스터빈 엔진을 이용한 유도탄 추진시스템 체계통합기술의 구성과 각 단계별 요소기술의 개요를 서술한다.

디지털감각지각훈련프로그램이 발달장애 아동의 손기능과 시각-운동 통합 능력에 미치는 영향 (The Effects of Digital Sensory Perceptual Training on Hand Function and Visual-Motor Integration in Children with Developmental Disabilities)

  • 김고운;오혜원
    • 대한통합의학회지
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    • 제7권4호
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    • pp.141-150
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    • 2019
  • Purpose : This study examined the hand function and visual motor integration capabilities in 30 children with developmental disabilities. The children were divided into an experimental group (n=20) that received digital sensory perception training and a control group (n=10) that did not receive this training. Methods : Training was conducted a total of 12 times for six weeks, for 50 minutes a day, twice a week, for the experimental group. The Jebsen-Taylor Hand Function Test was used to determine the hand function before and after the intervention, and the Beery VMI-6 was performed to identify the visual motor integration capability. Results :After the intervention, the ability to perform hand functions and visual motor interaction increased significantly in the experimental group but not in the control group. Digital sensory training therefore had a positive effect on the hand function and visual motor integration in children with developmental disabilities. Conclusion : A digital sensory perception training program is an arbitration method that can positively improve the hand function and visual motor integration ability in children with developmental disabilities.

Co-integration and Causality Analysis among Major Black gram Markets in Andhra Pradesh, India

  • Kumar, K. Nirmal Ravi
    • Agribusiness and Information Management
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    • 제12권2호
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    • pp.40-54
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    • 2021
  • Market integration and prices in pulse crops like black gram play an important role in determining the production decisions of the farmers and diversification towards high value nutritious crops. In this context, the present study explores extent of market integration and price transmission in selected major black gram markets in Andhra Pradesh using Johansen co-integration, Vector Error Correction Model and Granger causality test. The study used monthly prices data of black gram (Rs/quintal) sourced from selected markets of Srikakulam, Krishna and Kurnool spanning January, 1990 to December, 2019. The results of the study strongly buttressed the existence of co-integration and interdependence of selected black gram markets in Andhra Pradesh. However, the speed of adjustment of the prices found to be moderate in Krishna market and quite weaker in Srikakulam market and thereby prices correct a small percentage of the disequilibrium in these markets with the greatest percentage by the external and internal forces. So, it necessitates the need for future research, to investigate the influence of external and internal factors such as market infrastructure, Government policy and self-sufficient production, product characteristics and utilization towards market integration. As there exists only unidirectional causality from Krishna to Kurnool and from Krishna to Srikakulam markets, it calls for strengthening the information technology for flow of market information regularly to help the farmers for increasing their income.

C4I체계 시험평가 국방M&S 신뢰도 향상을 위한 VV&A 적용방안 연구 (A Study on VV&A Application Method for Credibility Improvement of The DM&S for C4I Test and Evaluation)

  • 김경희;강석중
    • 한국군사과학기술학회지
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    • 제13권6호
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    • pp.1080-1090
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    • 2010
  • A study for improvement of credibility on test & evaluation result of interoperability in battle management information system which focused in C4I systems is very essential in rapid change of battle field environment. Realization of effective operation process with integration of developed IT also core factor for reducing of operational response time such as information gathering from sensor to shooter, time for commander's decision making. Therefore, by required to meet of high technical T&E, meet of complex software's user requirement, long-term system development period, system integration ability's request by various linkage of systems, it is high a M&S dependency to optimal performance, interpoerability's guarantee. Especially credibility on test & evaluation using M&S is very important. This paper will propse a VV&A applied methods using other VV&A case to improve credibility of M&S on test & evaluation.

역동적 시각-운동 통합 훈련이 시지각 처리 속도에 미치는 영향 (The Effect of Dynamic Visual-Motor Integration Training on the Visual Perception Reaction Velocity)

  • 송민옥;이은실;박성호
    • 대한통합의학회지
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    • 제3권4호
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    • pp.37-42
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    • 2015
  • Purpose: This study was conducted to test the impact of The Dynamic Visual-Motor integration training has effect on the visual perception reaction velocity. Dynavision were used to measure data from the participating 24 students(K college). Method : The participants were the 24 students of 'K' College in Busan in there twenties. They were divided into the The Dynamic Visual-Motor integration training group and the control group. To know if the Dynamic Visual-Motor integration training has effect on the visual perception reaction velocity, the Dynamic Visual-Motor integration training was implemented triweekly for 4 weeks. In Dynamic Visual-Motor integration training the ball should be grasped with one hand and threw by an arm. Only the balls threw beyond the objective point were counted. The visual perception reaction velocity and the number of response were measured before and after experiment by Dynavision. Result : Firstly, the visual perception reaction velocity was increased in Dynamic Visual-Motor integration training group compared with control group. Secondly, the number of response was also increased in Dynamic Visual-Motor integration training group compared with control group. Conclusion : As a result of The Dynamic Visual-Motor integration training has an effect on the visual perception reaction velocity and the number of response. The Dynamic Visual-Motor integration training seems to be effective for cerebral apoplexy patient who has visual perceptional disability or cerebral palsy child in training for visual perceptional development or daily living activities development. Study participated by more detailed and practical patients in hospital is needed.

저궤도 관측위성용 구조 및 열 개발모델 추진시스템의 설계 및 제작 (Design and Integration of STM Propulsion System for LEO Observation Satellite Development)

  • 김정수;이균호;한조영;장기원;최진철
    • 한국항공우주학회지
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    • 제31권8호
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    • pp.115-124
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    • 2003
  • 극한의 우주공간에서 인공위성의 정상적인 성능을 보장하기 위해 일반적으로 여러 단계의 시험용 위성모델이 개발된다. 시험모델을 통해 비행모델(FM)의 설계/해석의 타당성을 검증하고, 변경사항을 최정 설계에 반영함으로써 인공위성 성능의 신뢰도를 향상시킬 수 있는 장점이 있다. 현재 개발 중인 다목적실용위성은 구조 및 열 개발모델(STM)의 제작/시험을 마친 상태이다. 본 논문에서는 다목적 실용위성의 모듈 중 하나인 추진시스템의 구조 및 열 개발모델(STM)의 설계/해석 및 조립에 관하여 기술하였다.

감각통합치료가 뇌성마비 아동의 대근육 운동발달 및 호흡기능에 미치는 영향 (Effect of Sensory Integration Therapy on Gross Motor Development and respiratory Function of Cerebral Palsy Children)

  • 권혜정
    • 대한물리치료과학회지
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    • 제8권1호
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    • pp.799-811
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    • 2001
  • The purpose of this study was to examine the effects of sensory integration therapy (SIT) on gross motor development and respiratory function of cerebral palsy children. The design of this study was one-group pre-and post-test design. Subjects of the study were arbitrarily chosen based on predetermined selection criteria among the cerebral palsy children who were treated as out-patients at one rehabilitation hospital in Kyunggi-do. The study was conducted between early April and late July in 2000. Twelve children were in the experimental group. A five-step SIT program was devised from a combination of SIT programs suggested by Ayres(1985) and Fink(1989), and an author-designed SIT program for cerebral palsy children. The experimental group was subjected to 20 to 30 minutes of SIT per session, two sessions a week for ten-week period. Collected data were statistically analyzed by SPSS PC for Wilcoxon signed rank test, and paired t-test. The results were as follows: 1. In gross motor development, post-experimental gross motor scores were higher compared to pre-experimental scores with statistical significance. 2. In respiratory function, post-experimental forced capacity vital scores were higher compared to pre-experimental scores with statistical significance. In conclusion, SIT was found to be effective in gross motor development and respiratory function. But, for the more effectiveness of SIT on gross motor development and respiratory function, further studies employing longer-time experiments are recommended.

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부하 추종형 실시간 변압기 손실감소운전시스템 개발과 시범운영 경제성 분석 (The Development of an Operating System for Load-following Real-time Transformer Loss Minimization and Economic Analyses on its' Test Operation)

  • 이옥배;안재경
    • 전기학회논문지
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    • 제61권6호
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    • pp.797-803
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    • 2012
  • In this paper, for minimizing the real-time operating load losses of the power transformer, a SCADA optimum operating system was developed, and the economic analyses on the test operation were performed. Transformer loss DB which reflects the economic integration operation criteria was constructed by referring the transformer manufacturer's loss data(iron loss, copper loss). Based on the loss DB, each substation transformer real-time loss was calculated according to the size of the transformer loads, and if integration or separation transformer operating conditions minimizing the loss are met, then a window pops-up and the dispatcher performs the substation equipments operation according to the procedure provided by this system. With the existing SCADA main program, the relation database of the substation facilities and integration/separation operation algorithm were developed and applied to Auto MTR Processor and pconn Processor Task module. Seven stations test data for seven months were analyzed for the economic analyses, and the results showed that Cost-Benefit ratio was 2.64, and IRR(Internal Rate of Return), 36%, which asserted the economic justification of the proposed system.