• Title/Summary/Keyword: 한국미기록

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An Efficient Scheme of Performing Pending Actions for the Removal of Datavase Files (데이터베이스 파일의 삭제를 위한 미처리 연산의 효율적 수행 기법)

  • Park, Jun-Hyun;Park, Young-Chul
    • Journal of KIISE:Databases
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    • v.28 no.3
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    • pp.494-511
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    • 2001
  • In the environment that database management systems manage disk spaces for storing databases directly, this paper proposes a correct and efficient scheme of performing pending actions for the removal of database files. As for performing pending actions, upon performing recovery, the recovery process must identify unperformed pending actions of not-yet-terminated transactions and then perform those actions completely. Making the recovery process identify those actions through the analysis of log records in the log file is the basic idea of this paper. This scheme, as an extension of the execution of transactions, fuzzy checkpoint, and recovery of ARIES, uses the following methods: First, to identify not-yet-terminated transactions during recovery, transactions perform pending actions after writing 'pa_start'log records that signify both the commit of transactions and the start of executing pending actions, and then write 'eng'log records. Second, to restore pending-actions-lists of not-yet-terminated transactions during recovery, each transaction records its pending-actions-list in 'pa_start'log record and the checkpoint process records pending-actions-lists of transactions that are decided to be committed in 'end_chkpt'log record. Third, to identify the next pending action to perform during recovery, whenever a page is updated during the execution of pending actions, transactions record the information that identifies the next pending action to perform in the log record that has the redo information against the page.

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First Record of Icelinus japonicus (Scorpaeniformes: Cottidae) from Korea (서해 중부연안에서 채집된 둑중개과(Cottidae) 한국미기록종, Icelinus japonicus)

  • Kim, Byung-Jik
    • Korean Journal of Ichthyology
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    • v.23 no.4
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    • pp.305-309
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    • 2011
  • Three specimens of a small sculpin, Icelinus japonicus, were collected from the midwestern coastal waters of the Korean Peninsula firstly. The species is characterized by having two ctenoid scale rows extending posterior end of the second dorsal fin along the dorso-lateral surface of the body, pelvic fin with a spine and two soft rays, and teeth on vomer and palatines. A new Korean name, "Du-jul-bil-neul-hoes-dae", is proposed for the species.

New Record of Blenny Omobranchus loxozonus (Perciformes: Blenniidae) from Jeju Island, Korea (제주도에서 채집된 청베도라치과 (Blenniidae) 한국미기록종, Omobranchus loxozonus)

  • Kim, Byung-Jik;An, Jung-Hyun
    • Korean Journal of Ichthyology
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    • v.22 no.1
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    • pp.61-64
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    • 2010
  • Omobranchus loxozonus is first recorded from Korea based on 31 specimens (32.3~71.5 mm SL) collected from the southern coastal waters of Jeju Island. The species is characterized by having XII~XIV, 19~22 dorsal fin rays, II, 22~24 anal fin rays, and a conspicuous color pattern on the body. A new Korean name "Gu-reum-be-do-ra-chi" is proposed for the species.

Three New Recorded Species of the Genus Stenus Latreille (Coleoptera, Staphylinidae, Steninae) in Korea (한국산 딱부리반날개속(딱정벌레목, 반날개과, 딱부리반날개아과)의 미기록 3종 보고)

  • Oh, Kwang-Sik;Cho, Young-Bok
    • Korean journal of applied entomology
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    • v.52 no.3
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    • pp.199-203
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    • 2013
  • Three species of the genus Stenus Latreille are reported for the first time in Korea [Stenus (Stenus) latissimus latissimus Bernhauer, S. (S.) hammondi Puthz and S. (Hypostenus) dissimilis Sharp]. The adult photographs and the illustrations of aedeagus and 9th sternite of male are provided.

Four Linyphiid Spiders (Araneae: Linyphiidae) New to Korea (접시거미류(거미목: 접시거미과)의 4 한국 미기록종)

  • Seo, Bo Keun
    • Korean journal of applied entomology
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    • v.52 no.3
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    • pp.171-179
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    • 2013
  • Four linyphiid species, Centromerus sylvasticus (Blackwall, 1841), Ryojius japonicus Saito and Ono, 2001, Sachaliphantes sachalinensis (Tanasevitch, 1988) and Tmeticus vulcanicus Saito and Ono, 2001, are reported new to the Korean fauna. Four genera, Centromerus Dahl, 1886, Ryojius Saito and Ono, 2001, Sachaliphantes Saaristo and Tanasevitch, 2004 and Tmeticus Menge, 1868, are also new to Korea. Diagnostic phototraphs and illustrations of species are provided.

Four Species of Genus Philonthus Stephens from Korea (Insecta, Coleoptera, Staphylinidae) (한국산 좀반날개속(곤충강, 딱정벌레목, 반날개과)의 4미기록종)

  • Cho, Young-Bok
    • Korean Journal of Environmental Biology
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    • v.17 no.2
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    • pp.205-208
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    • 1999
  • Four Korean species of the genus Philonthus Stephens (P. aeneipennis Boheman, P. daimio Sharp, P. nakanei Sawada, and P. numata Dvorak) are identified newly and are recorded for the first time in Korea. The diagnosis and the aedeagus illustrations of each species are presented herein.

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First Record of the Salurnis marginella (Guérin-Méneville) (Hemiptera: Flatidae) in Korea (한국 미기록종 Salurnis marginella (노린재목: 선녀벌레과)에 대한 보고)

  • Lee, Heejo;Bae, Yang-Seop;Kim, Dong Eon
    • Korean journal of applied entomology
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    • v.55 no.4
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    • pp.477-482
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    • 2016
  • A Flatid (Hemiptera: Flatidae) species Salurnis marginella ($Gu{\acute{e}}rin-M{\acute{e}}neville$,1829) is reported in Korea for the first time. Morphological and biological information are provided including photographs of the adult, genitalia, nymphs and host plants.

First Record of Zoarces elongatus (Perciformes: Zoarcidae) from Korea (변산반도 주변해역에서 채집된 등가시치과 한국미기록종, Zoarces elongatus)

  • Ko, Myeong-Hun;Park, Jong-Young
    • Korean Journal of Ichthyology
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    • v.20 no.1
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    • pp.70-73
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    • 2008
  • Eight specimens (330.2~431.3 mm TL) of the family Zoarcidae were collected from the costal waters of the Byeonsanbando, Yellow Sea, Korea. They were identified as a Zoarces elongatus Kner based on the following characters: a dorsal fin with 14~16 notch-shaped spinous rays, irregular 13~16 dark spots in a row along the median body and 126~132 vertebrae. We proposed a new Korean name, 'Mu-jeom-deung-ga-si-chi', for the species.

New Record on Suidasia medanensis Oudemans 1924 from Stored Food in Korea(Astigmata : Acaridae) (한국산 저장식품응애 1미기록 종(Suidasia medanensis Oudemans, 1924)에 대한 보고)

  • Jung, Young-Hwa;Hong, Shin-Ji;Lee, Won-Koo
    • Korean journal of applied entomology
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    • v.49 no.4
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    • pp.273-276
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    • 2010
  • One of stored food mites, Suidasia medanensis Oudemans, 1924 is first reported form Korea after the stored food surveys in 2008 and 2009. The morphological characteristic is given.