• Title/Summary/Keyword: 28S

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Pyrite Concentration and Paleoenvironmental Change of the Hiroshima Delta (Japan) (일본 히로시마 삼각주 퇴적층의 황철석 함량과 고 환경변화)

  • Jinadasa Katupotha
    • The Korean Journal of Quaternary Research
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    • v.3 no.1
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    • pp.47-54
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    • 1989
  • Pyrite ($FeS_2$) content in brackish and salt marsh sediments is relatively higher than the amount in freshwater marsh sediments. Different values of pyrite sulfur ($FeS_2$-S) content in sediments from the Hiroshima Delta indicate that poorly drained salt marsh had developed between 27.0m and 28.0m below mean sea-level and palaeo-sea-level was constant for several hundreds of years in the same depth during the early Holocene Epoch.

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Effects of Advancing Age on Drivers' Cognitive Workload (연령 증가에 따른 주행 중 인지 부하의 특성 변화)

  • Lee, Yong-Tae;Kim, Man-Ho;Son, Joon-Woo
    • Journal of the Ergonomics Society of Korea
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    • v.28 no.3
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    • pp.73-79
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    • 2009
  • Driving is a complex psychomotor task often interrupted by secondary activities that increase cognitive workload and divert attention away from the roadway. The risk of inattentive driving is known to vary with age. To assess the characteristics of advancing age on driver's cognitive workload under dual task condition, we evaluate the performance of 96 drivers divided into three age groups: 20's, 40's, and 60's. This study considers driver's cognitive workload in the context of urban and highway driving. Error rate & Dual task cost are used to measure driver's cognitive workload. Results indicate that age impacts cognitive workload during dual task driving conditions.

Market and Technology Trends in 100Gb/s Optical Transceiver (100Gb/s 광트랜시버 시장 및 기술동향)

  • Lee, J.J.;Huh, J.Y.;Kang, S.K.;Lee, J.K.;Lee, J.C.;Lee, D.S.
    • Electronics and Telecommunications Trends
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    • v.30 no.1
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    • pp.65-76
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    • 2015
  • 스마트폰의 보급에 따른 대용량 멀디미디어 서비스의 폭발적인 수요 증가에 따라데이터센터의 100Gb/s 광트랜시버에 대한 수요는 2017년을 기점으로 10Gb/s를 추월하여 2018년 데이터콤 전체 시장의 50% 이상을 차지할 전망이다. 한편, 데이터센터의 소비전력 및 시스템 집적도 증가를 위해 광트랜시버의 Form-factor는 CFP(40G/100G Form-factor Pluggable)에서 QSFP28($4{\times}28G$ Quad Small Form-factor Pluggable)로 약 1/14배 소형화될 전망이며, 이에 따른 광트랜시버 구성 부품의 집적도는 높아지고 소비전력은 현재 대비 1/9로 낮아져야 한다. 본고에서는 소형화 및 저전력화를 위한 광트랜시버의 표준화 및 기술동향과 국내외 시장동향에 대해 기술한다.

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A novel species Symphyocladia glabra sp. nov. (Rhodomelaceae, Rhodophyta) from Korea based on morphological and molecular analyses

  • Kang, Jeong Chan;Kim, Myung Sook
    • ALGAE
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    • v.28 no.2
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    • pp.149-160
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    • 2013
  • Six species of the genus Symphyocladia are currently recognized worldwide, all of which are reported to grow on the Korean coast. We described a new species Symphyocladia glabra sp. nov. based on morphological and molecular evidence. The new species is characterized by mostly an erect and broad thallus, the parallel arrangement of numerous apical cells, completely fused congenital cells, a corticated basal portion of faint midrib with six to eight pericentral cells, rhizoids cutting off from pericentral cells, and absent vegetative trichoblasts. The new species has morphological similarity to S. marchantioides and S. jejuinsula. However, S. glabra sp. nov. is distinguished from S. marchantioides by the corticated lower portion of the thallus and the absence of vegetative trichoblasts, and S. jejuinsula by number of pericentral cells and the fact that the thallus does not taper upward. The phylogeny of rbcL sequences indicated that S. glabra sp. nov. is definitely a separate entity within the genus Symphyocladia.

The U.S. Supreme Court Finally Limits the Scope of Judicial Assistance in Private International Arbitral Proceedings Pursuant to 28 U.S.C. §1782 in its Recent Decision of ZF Auto. US, Inc., v. Luxshare, Ltd., 596 U.S. ___ (2022)

  • Jun, Jung Won
    • Journal of Arbitration Studies
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    • v.32 no.3
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    • pp.29-46
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    • 2022
  • Until recently, there has been a circuit split as to whether parties to foreign private arbitral proceedings could seek assistance from the U.S. courts for discovery pursuant to 28 U.S.C. §1782. The circuit courts have differed on the issue of whether a private arbitral proceeding may be considered a "proceeding in a foreign or international tribunal" in terms of the statute, which would ultimately allow or disallow judicial assistance in taking of evidence by the U.S. district courts for use in the requested proceedings. While the U.S. Supreme Court has addressed the applicability of §1782 in its Intel decision in 2004, it had not established a test as to what constitutes a foreign or international tribunal for the purposes of §1782, thereby leaving it open for lower courts to continue to interpret §1782 in their own ways, as requests for judicial assistance in taking of evidence are filed. In the recent decision of ZF Auto. US, Inc., v. Luxshare, Ltd., the Supreme Court has finally clarified that in order for an arbitral panel to be a "foreign or international tribunal" under §1782, such panels must exercise governmental authority conferred by one nation or multiple nations. Therefore, private commercial arbitral panels are not "foreign or international tribunal(s)" for the purposes of §1782 because they do not constitute governmental or intergovernmental adjudicative bodies. Such holding is necessary and legitimate for interested parties in international arbitration, as well as, potential parties of arbitration who are contemplating alternative dispute resolution for their dispute(s).