• 제목/요약/키워드: DO control

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기능 안전과 모델기반 시스템엔지니어링 - ISO 26262/DO-178C 중심으로 (Functional Safety and Model-Based Systems Engineering - focusing on ISO 26262/DO-178C)

  • 박중용;백승길
    • 시스템엔지니어링학술지
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    • 제13권1호
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    • pp.57-65
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    • 2017
  • Recently, the ratio of electrical part and embedded software has grown in automotive industry. ISO 26262, 'Road Vehicles - Functional Safety', was published to guide development of automotive electrical and electronic part in 2011. This paper describes definition of functional safety and analyzes ISO 26262. The comparison of ISO 26262 and DO-178C is made, then difference between them is identified. DO-178C provides guidance for the production of software for airborne system and equipment. The core of DO-178C is a relatively minor update to the previous DO-178B, however, the big changes are captured in the supplemented documents such as DO-331, 'Model-Based Development and Verification Supplement to DO-178C and DO-278A'. Model-based design is important to develop automotive and aircraft meeting the guidelines of ISO 26262 and DO-178C. In this paper, the sample case of applying MBSE(Model-Based Systems Engineering) to AVCS(Active Vibration Control System) software development is discussed.

여자대학생의 신체이미지가 의복행동과 체중조절에 미치는 영향 (The Effect of Body Image on the Clothes and Dieting of Female University Students)

  • 김인화;임자영
    • 한국생활과학회지
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    • 제19권4호
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    • pp.687-698
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    • 2010
  • This study found that physical image affects behaviour of clothes, ready-to-wear satisfaction or dissatisfaction, weight control targeting the female university students. Results showed that people, who manage their appearance well, seeks esthetics and showing off, on the contrary, the person, who has not confidence of her body, pursues virtue. It was also found that people who have confidence in their body shape, and people who manage their appearance well are typically satisfied with ready-to-wear clothes, while people who are not satisfied with their appearance, do not like ready-to-wear clothes. People who are concerned with appearance and who manages their appearance well, are typically worried about obesity, and they manages their weight control carefully. However, people who have confidence in their bodies and who do not manage their weight do not pay attention to weight control. Consequently, fit was also found that people with more confidence tend to do more exercise and more frequently visit saunas. The less they don't satisfied with their body, the more fast, dietary treatment, or weight control with the other ways.

External Force Control for Two Dimensional Contour Following ; Part 2. Analysis and Implementation of Analysis Control

  • Park, Young-Chil;Kim, Sungkwun
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 1992년도 한국자동제어학술회의논문집(국제학술편); KOEX, Seoul; 19-21 Oct. 1992
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    • pp.135-139
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    • 1992
  • Control of tool-environment interaction force to comply the robot system to an environment is of vital in many automated process. This paper presents the implementation of an adaptive force control with commercial robot system in two dimensional contour following task. A model reference adaptive control system, combined with the linear compensators, is implemented. That is, a use of adaptive control is to provide an auxiliary control system so that the contour following performance can be improved from that of using linear control system only. Hyperstability is used to derive the adaptive control law. Experimental verification of the proposed control system is obtained using PUMA 560 robot system. Data obtained experimentally shows that the use of additional adaptive control system improves the contour following performance about 30% in RMS contact force errors upon that of the system controlled by the linear compensators only.

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Effect of Organic Materials on Seedling Growth and Yield of Red Pepper

  • Seo, Y.W.;Yang, S.K.;Kim, Y.S.;Lim, K.H.;Kim, H.J.;Choi, K.J.
    • 한국유기농업학회지
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    • 제19권spc호
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    • pp.210-213
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    • 2011
  • In this study, growth of pepper seedlings was tested by treating organic materials in a plastic green house in Ssangok-ri Dogok-myeon, Hwasun-gun, Jeollanam Province from February 3, 2010 to April 19, 2010. The raised seedlings were planted to the organic planting area with an interval of $70cm{\times}55cm$ on April 20 in Deogam-ri Gogeum-myeon Wando-gun and red peppers were harvested at 7 times from July 22 to September 29. Before planting, the plant length of the overgrowth of seedlings was reduced by 26.8% using plant powder treatment as compared to the control group. The red pepper yield was 27% higher than in the control group when 20g of bone ash powder and 20g of plant powder were mixed. The yield tended to increase in other treatments compared to the control group.

율무에서 조명나방에 대한 몇 가지 살충제의 포장 방제효과 (Control Efficacy of Several Pesticides against Asian Corn Borer, Ostrinia furnacalis, in Job's Tears Fields)

  • 이영수;정진교;장정희;김소희;최종윤;이현주;이상우;이영순
    • 한국응용곤충학회지
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    • 제61권1호
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    • pp.275-281
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    • 2022
  • 소면적 약용작물인 율무의 주산지인 연천에서 조명나방의 발생 양상을 조사하고, 이를 기반으로 5종의 살충제와 3종의 유기농업 자재에 대한 포장 방제효과를 검정하였다. 조명나방의 성충은 5월부터 발생이 시작되어 10월 하순까지 총 3세대를 경과하였다. 포장시험 결과, 5종의 살충제인 novaluron, lufenuron, spinetoram, cyclaniliprole, flufenoxuron과 3종의 유기농업 자재인 CCBP (gosam extracts 90%), LT (neem extracts 60%), JT (citronella oil 30 + derris extracts 20 + cinnamon extracts 10%)는 율무에 발생하는 조명나방에 대하여 2 지역 모두에서 높은 방제효과를 보였으며, 2배량에서도 약해가 없어 율무 전용 살충제로써 이용이 가능할 것으로 생각된다.