• Title/Summary/Keyword: 잠

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경유승용차 시판 허용시 문제점

  • Korea LPGas Industry Association
    • LP가스
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    • s.80
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    • pp.70-73
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    • 2002
  • 한국LP가스공업협회 최근 경유승용차의 허용여부에 대한 논란이 제기되고 있는 가운데, 우리회가 검토한 경유승용차 시판허용시 문제잠에 대하 게재한다.

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1318 건강 - 성장기 코 질환 시간이 약이다? 큰일날 말씀!

  • Son, Ji-Hye
    • 건강소식
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    • v.38 no.10
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    • pp.28-29
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    • 2014
  • "잠이 보약이다"라는 옛말은 언제나 옳지만, 그중에서도 누구나 고개를 끄덕이는 숙면에 대한 진리. 양질의 수면은 쌓인 피로를 해소해줄 뿐 아니라 밤 사이 우리도 모르게 신체 구석구석을 치유하고 발달하게 한다. 특히 성장기 아이에게 고른 호흡으로 취하는 숙면은 고른 식단만큼이나 중요한 요소이다.

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System Design of a Deep-sea Unmanned Underwater Vehicle for Scientific Research (심해 과학조사용 무인잠수정의 시스템 설계)

  • Lee, Pan-Mook;Lee, Choong-Moo;JEON, Bong-Hwan;Hong, Seok-Won;Lim, Yong-Kon
    • Proceedings of the Korea Committee for Ocean Resources and Engineering Conference
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    • 2002.05a
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    • pp.243-250
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    • 2002
  • According to Ocean Korea 21, a basic plan established by the Ministry of Maritime Affairs and Fisheries (MOMAF) of Korea in May 2000, Korea Research Institute of Ships and Ocean Engineering (KRISO) proposed a program for the development of a deep-sea unmanned underwater vehicle (UUV) to explore deep sea for scientific purpose. KRISO has launched a project in May 2001 under the support of MOMAF. The deep-sea unmanned underwater vehicle will be applied to scientific researches in deep-sea as well as in shallow water. For operation of underwater vehicles in shallow water near the Korean Peninsula, a special design is required because of strong tidal current. In addition, MOMAF requires the vehicle to be designed for the purpose of long range survey, a long-term observation, and precise works in a specific area. Thus, KRISO has planned to design the system with the functional combination of both ROV and AUV. This paper presents the design of the deep-sea unmanned underwater vehicle.

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Field Monitoring Examination on Wave Energy Dissipation Effects by Submerged Artificial Reefs (현장관측을 통한 잠제의 파랑제어효과검토)

  • Kim, Kyu-Han;Shin, Bum-Shick
    • Journal of Korean Society of Coastal and Ocean Engineers
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    • v.26 no.1
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    • pp.1-8
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    • 2014
  • In this study, a field monitoring on Namae beach erosion countermeasure in the east coast of Korea is conducted to verify its efficiency and effectiveness. The Namae Beach project has been carried out for six years with three years for planning and three years for actual construction. The planning phase of numerical model tests and investigations had been reported by Kim et al. (2008, 2011). The field monitoring confirms increase in the beach width after the submerged artificial reefs construction and is due to its wave energy dissipation effects. The field monitoring is performed at the seaward and landward of the countermeasures. The wave height reduction from the seaward side (depth h = 10.5 m) to the landward side (h = 3.7 m) of the reef is measured for wave transmission coefficient (Kt) analysis. The analysis shows 60% of deduction in wave energy due to the submerged artificial reefs.

Detection and Identification of a Mixed Infection of Three Viruses in Chinese Artichoke in Korea (국내 초석잠에 복합 감염된 3종 바이러스의 분리 및 동정)

  • Kim, Eun-Kyoung;You, Jae-Won;Park, Ji-Soo;Min, Dong-Joo;Park, Suk-Hyun;Hong, Jin-Sung
    • Research in Plant Disease
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    • v.24 no.1
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    • pp.81-85
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    • 2018
  • Chinese artichoke (Stachys sieboldii Miq.) belongs to herbaceous perennial plants of Labiatea and is cultivated as edible and medicinal crops in China, Japan and Korea. A Chinese artichoke plant showing virus-like symptoms was collected in Chungju, Korea. Plant sap of the sample was inoculated in Nicotiana tabacum cv. Xanthi-nc, Chenopodium quinoa and Chenopodium amaranticolor. Necrotic local lesions were observed in the inoculated leaves of N. tabacum cv. Xanthi-nc and C. amaranticolor, C. quinoa with systemic chlorotic spots and mosaic symptoms on the upper leaves. The disease reactions on indicator plants suggested that the collected Chinese artichoke sample was mixed-infected with different viruses. We detected three viruses by RT-PCR analysis using genus- and species-specific primer sets for Alfalfa mosaic virus (AMV), Cucumber mosaic virus (CMV) and Tobacco mosaic virus (TMV). This study is the first report of a mixed infection of three viruses in Chinese artichoke in Korea.

The Studies on Hydrolysis of the Silk Fibroin by Proteolytic Enzyme, Bombyx mori III. Variations of the Fibroin Hydrolysis by Different Silkworm Varieties (견 Fibroin의 효소분해에 관한 연구 (III) -가잠의 원종 및 교잡종견사의 Fibroin 분해율 차이-)

  • 이용우;최병희;송기언;남중희
    • Journal of Sericultural and Entomological Science
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    • v.18 no.2
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    • pp.101-105
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    • 1976
  • The study was carried out to investigate the variations in the fibroin hydrolysis of leading silkworm varieties in Korea, and the relationship between the fibroin hydrolysis of the silkworm varieties with some characteristics and silk morphological property. The results obtained are summarized as follows: 1) The fibroin hydrolyzing ratio of both parent silkworm cocoons was reduced in the F$_1$hybrids. 2) A positive corelation (r=+0.86) was approved between the mid-parent value and the F$_1$hybrid in the fibroin hydrolysis. 3) It was disclosed that the fibroin hydrolyzing ratio of Jam 103${\times}$Jam 104 was the lowest among the leading silkworm F$_1$hybrids. 4) The fibroin hydrolysis was affected by the silk morphological property, showing a positive corelation between the size of cocoon filament and the fibroin hydrolyzing ratio. 5) It was thought that the determination of the fibroin hydrolyzing ratio was useful as a marker for the selection of its related economical characters in silkworm breeding, because the fibroin hydrolysis of parents silkworm cocoons was heritable in their F$_1$hybrids.

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