• Title/Summary/Keyword: 엘이디

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A design of FACE-compliant IOS and TS segments architecture based on ARINC653 in avionics system (항공전자 시스템에서 ARINC653 기반의 FACE를 준수하는 IOS 및 TS 세그먼트 구조 설계 )

  • Doo-Hwan Lee;Young-Uk Nam;Kyeong-Yeon Cho;Ji-Yong Yoon
    • Journal of Advanced Navigation Technology
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    • v.27 no.4
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    • pp.429-435
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    • 2023
  • The increasing complexity of avionics systems has emphasized the portability and reusability of software components. In this paper, a structural design method for IOSS (Input Output Service Segment) and TSS (Transport Service Segment) complying with the FACE (The Future Airborne Capability Environment) standard in the VxWorks 653 operating environment that satisfies ARINC 653 requirements is described. IOSS and TSS operate independently in different partitions to minimize time/space separation and the influence of other software, and to increase portability and reusability, strategy patterns among design patterns are applied. In addition, IOSS provides external interface service by applying distributed IO service structure, and among external interfaces, the ARINC 664 P7 interface of FACE-compliant equipment is placed in TSS to optimize the data movement path.

A Study on the Myrmecochorous Plant Species and Their Diaspore Characteristics in Korea(I) (개미가 종자를 산포하는 식물종과 전파체 특성에 관한 연구(I))

  • Kim, Gab-Tae
    • Korean Journal of Environment and Ecology
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    • v.28 no.4
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    • pp.419-423
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    • 2014
  • To search for native myrmecochorous plant species in Korea and their diaspore characteristics, collecting their fruits and diaspores, and the related ant species were studied from April 2012 to October 2013. Eight herb species growing in Korea are added to the myrmecochorous (seed attached elaiosome) plant list. Elaiosomes of eight herb species vary considerably in shape and size. Major ant species transporting the diaspore of myrmecochorous plants are Formica japonica, Lasius alienus, L. japonicus, Myrmica lobicornis, Temnothorax spinosior, Tetramorium tsushimae, but Camponotus japonicus and Nylanderia sakurae do not transport the diaspores. This study found out that mutualism between myrmecochorous summer-flowering plants and ants is carried out in Korea. Further research on the native myrmecochorous plants should be needed.

El Greco as an Intersection of Counter-Reformation and Byzantine picture -Focused on of El Greco (비잔틴 화풍과 반종교개혁의 교차점으로서의 엘 그레코 - 엘 그레코의 <참회하는 막달라 마리아를 중심으로>)

  • Lim, Juin
    • Cross-Cultural Studies
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    • v.26
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    • pp.43-71
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    • 2012
  • In this article, we recognize the cross-cultural communication between Greece and Spain through El Greco's pictures. The Greeks of Crete kept to their culture and continued to look to the declining Byzantine Empire for spiritual and political guidance. For two centuries after the conquest, the strength of the Byzantine tradition had become the moral and spiritual sustenance of the conquered in Crete. The basic contribution of Cretan intellectuals or artists such as El Greco of the fifteenth and sixteenth centuries was the forging of connecting links between the Hellenism of the old Byzantine East and the rising, youthful Hellenism of the Renaissance West. In this way, Crete served as an important halfway point between East and West. The saint Mary Magdalene was symbol of Christian penitence, which represents the penitential life personified and became widespread during the Counter Reformation, when new emphasis was put on the value of prayer and repentance in the forgiveness of sin. In Spain, the Penitent Magdalene was popular and El Greco painted many versions, which at the first time, were reflected by Tiziano, on the contrary, at the time of Toledo, were recreated by his own style. Although El Greco was converted to Catholic in Spain, his faith in Greek Orthodox Church influenced on his original painting world. El Greco had never painted a picture whose subject treat with the emphasis of identification between Mary Magdalene and Mary, younger sister of Martha.

A Numerical Study on the Characteristics of the Supercavitation and Hydrodynamic Forces Generated in a Supercavitating Underwater Vehicle with Angle of Attack (받음각을 갖는 초공동 수중 운동체에서 발생하는 초월공동과 유체력 특성에 대한 수치적 연구)

  • Jeon, Yunho;Park, Jeonghoon;Jeon, Kwansoo
    • Journal of the Society of Naval Architects of Korea
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    • v.58 no.4
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    • pp.214-224
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    • 2021
  • Recently, as the technology of the supercavitating underwater vehicle is improved, the necessity of research for maneuvering characteristics of the supercavitating underwater vehicle has emerged. In this study, as a preliminary step to analyzing the maneuverability of a supercavitating underwater vehicle, the characteristics of cavity shapes and hydrodynamic forces generated in a supercavitating underwater vehicle with an angle of attack were evaluated numerically. First, the geometry was designed by modifying the shape of the existing supercavitating underwater vehicle. The continuity and the Navier-stokes equations are numerically solved, and turbulent eddy viscosity is solved by the k-ω SST model. The results present the characteristics of cavity shape and the hydrodynamic forces of the designed geometry with an angle of attack.

업계 소식

  • Korea Chicken Council
    • Monthly Korean Chicken
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    • s.131
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    • pp.38-42
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    • 2006
  • 바이엘코리아(주)/ 네오바이오(주)/ (주)우성사료/ (주)삼지약품/ CJ Feed/ (주)지티/ (주)코스프/ (주)두산 백두사료/ (주)코미팜

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전력과 미국의 장래

  • 워커 엘 씨슬러
    • JOURNAL OF ELECTRICAL WORLD
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    • no.7 s.1
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    • pp.58-65
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    • 1965
  • 1965년 5월 3일 미국 Florida주 Miami Beach의 Bal Harbour에서 개최된 에디슨 전기협회 제33차 년차총회에서의 연설

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업계소식

  • Korea Far Infrared Association
    • Journal of Korea Far Infrared Association
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    • s.31
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    • pp.25-34
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    • 2006
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