• Title/Summary/Keyword: FRONTIER

Search Result 910, Processing Time 0.047 seconds

Kuroshio Observation Program: Towards Real-Time Monitoring the Japanese Coastal Waters

  • Ostrovskii, Alexander;Kaneko, Arata;Stuart-Menteth, Alice;Takeuchi, Kensuke;Yamagata, Toshio;Park, Jae-Hun;Zhu, Xiao Hua;Gohda, Noriaki;Ichikawa, Hiroshi;Ichikawa, Kaoru;Isobe, Atsuhiko;Konda, Masanori;Umatani, Shin-Ichiro
    • Ocean and Polar Research
    • /
    • v.23 no.2
    • /
    • pp.141-160
    • /
    • 2001
  • The challenge of predicting the Japanese coastal ocean motivated Frontier Observational Research System for Global Change (FORSGC) and the Japan Marine Science and Technology Center (JAMSTEC) to start a multiyear observational programme in the upstream Kuroshio in November 2000. This field effort, the Kuroshio Observation Program (KOP), should enable us to determine the barotropic and baroclinic components of the western boundary current system, thus, to better understand interactions of the currents with mesoscale eddies, the Kuroshio instabilities, and path bimodality. We, then, will be able to improve modeling predictability of the mesoscale, seasonal, and inter-annual processes in the midstream Kuroshio near the Japanese main islands by using this knowledge. The KOP is focused on an enhanced regional coverage of the sea surface height variability and the baroclinic structure of the mainstream Kuroshio in the East China Sea, the Ryukyu Current east of the Ryukyu's, and the Kuroshio recirculation. An attractive approach of the KOP is a development of a new data acquisition system via acoustic telemetry of the observational data. The monitoring system will provide observations for assimilation into extensive numerical models of the ocean circulation, targeting the real-time monitoring of the Japanese coastal waters.

  • PDF

Studies on the Management and Utilization of Reed Canarygrass I. Comparison of growth charateristics , dry matter yield , and nutritive value in four cultivars of reed canarygrass (Reed Canarygrass의 관리 및 이용에 관한 연구 I. Reed Canarygrass 4품종의 생육특성 , 건물수량 및 사료가치 비교)

  • Seo, Sung;Kim, Jae-Kyu
    • Journal of The Korean Society of Grassland and Forage Science
    • /
    • v.12 no.4
    • /
    • pp.232-238
    • /
    • 1992
  • To understand the basic information on the management and utilization of reed canarygrass (Phalaris arundinacea L.), four cultivars of Palaton. Venture, Castor and Frontier (control) were compared for growth characteristics, dry matter (DM) yield and nutritive value, 1990 to 1992. The reed canarygrass was harvested four times annually, at soiling stage. The average plant height at harvest was 60 cm in Frontier, 57 cm in Palaton and Venture, and 52 cm in Castor. Initial heading and heading date in 1990 were ca. 21 May and 29 May, respectively, regardless of cultivar. The highest yield (12.495 kg/ha) in 1990 was observed by Frontier. In 1991. Palaton. Venture and Frontier outyielded Castor significantly, and the yields of all cultivars in 1992 were not significant, ranged from 11,460 kg (Castor) to 12,298 kg/ha (Palaton). On an average for three years, Palaton (10,592 kg), Venturc (10,405 kg) and Frontier (1 1,277 kg/ha) produced more forages than Castor. In Frontier the percentage of DM distribution at first harvest (spring) was highest (32.4%). However, the distributions at third (summer) and fourth (autumn) harvest were high in Palaton and Venture, compared with Frontier. The nutritive value of reed canarygrass was not significantly different among cultivars, and the percentage of weeds was slightly high in Castor reed canarygrass.

  • PDF

Electric Power System Relay Protection System Design for the Proton Accelerator Research Center of PEFP (양성자가속기 연구센터의 전력계통 보호계전 방식)

  • Mun, Kyeong-Jun;Lee, Seok-Ki;Jeon, Gye-Po;Cho, Jin-Sam;Min, Yi-Sub;Nam, Jung-Min;Kim, Jun-Yeon
    • Proceedings of the KIEE Conference
    • /
    • 2009.07a
    • /
    • pp.428_429
    • /
    • 2009
  • 전력계통 운용시 고장이 발생하면 계통 운전원은 계전기 및 차단기 관련 동작정보 및 경보로부터 해당 고장내용을 판단하고 계통복구를 위한 조작을 행한다. 본 논문에서는 현재 건설중인 양성자가속기 연구센터의 전력 계통 운용시 발생한 고장에 따른 다중경보신호를 분석하기 위하여 전력계통의 고장영역별로 동작하는 보호계전기 신호, 차단기 신호 및 경보신호를 분류함으로써 이를 향후 전력계통 운용시 고장진단을 위한 기초자료로 활용하고자 한다.

  • PDF

Chromatic and Optical Characteristics of LCD TV

  • Pan, Po-Chuan;Koo, Horng-Show
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 2006.08a
    • /
    • pp.1795-1800
    • /
    • 2006
  • HDTV will be the future TV system. LCD TV, accompanying with the progress of HDTV, rapidly grows up these years. Beside, several technologies and fabricating techniques have greatly enhanced resulting high quality display is easy to achieve. This paper will discuss video decoder, color filter, and backlight which is to know their functions, operating methods, and the chromatic and optical characteristics.

  • PDF