• Title/Summary/Keyword: 가자

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Morphological description and molecular identification of the newly recorded bothid, Crossorhombus azureus (Bothidae, Pleuronectiformes) postlarva collected from the southern sea of Korea (한국 남해에서 채집된 둥글넙치과(가자미목) 1미기록종, Crossorhombus azureus 후기자어의 형태기재 및 분자동정)

  • SEO, Min-Ju;YU, Hyo-Jae;KIM, Jin-Koo
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.57 no.3
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    • pp.264-269
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    • 2021
  • A single postlarva (9.72 mm in standard length) specimen of Crossorhombus azureus (Alcock, 1889) belonging to the family Bothidae, was collected using a bongo net from the southern sea of Korea on December 10, 2019. This species is characterized by having spines on post basipterygial processes. It has two eyes located at the opposite side in head, which accordingly belongs to pre-metamorphosis stage. Melanophores are distributed on the dorsal and anal fin base on the right side (blind side), which is regarded as a useful identification key distinguishing C. azureus from congeneric species in their postlarval stage. A molecular analysis based on mitochondrial DNA COI sequences showed that our specimen was closely matched to adult C. azureus (K2P distance = 0.017). As there is no Korean name for the genus Crossorhombus in spite of presence of Crossorhombus kobensis and its Korean name "Go-be-dung-geul-neob-chi" in Korea, we proposed a new Korean name "Dung-geul-neob-chi-sog" for the genus Crossorhombus and "Pa-lang-dung-geul-neob-chi" for the species C. azureus.

First Occurrence of a Pleuronectid Atheresthes evermanni (Pleuronectiformes) from the Middle East Sea, Korea (한국 동해 중부 해역에서 채집된 가자미과(Pleuronectidae) 어류 첫기록종, Atheresthes evermanni)

  • Park, Jeong-Ho;Jang, Yo-Soon;Kim, Jin-Koo
    • Korean Journal of Ichthyology
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    • v.32 no.4
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    • pp.245-250
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    • 2020
  • Two specimens (407~438 mm in standard length) of a pleuronectid Atheresthes evermanni were collected by a gill-net from the coastal waters off Goseong-gun, middle East Sea of Korea. These specimens are characterized by a large mouth, narrow interorbital space, invisible eye at blind side, long and slender gill rakers, emarginated caudal fin, and almost straight lateral line. This is the first record of A. evermanni in Korean waters; we therefore add it to the Korean fish fauna and propose new Korean name, "Hwa-sal-chi-ga-ja-mi-sog" for the genus and "Hwa-sal-chi-ga-ja-mi" for the species, respectively.

Construction of UOWHF: New Parallel Domain Extender with Optimal Key Size (UOWHF 구생방법 : 최적의 키 길이를 가자는 새로운 병렬 도메인 확장기)

  • Wonil Lee;Donghoon Chang
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.14 no.2
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    • pp.57-68
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    • 2004
  • We present a new parallel algorithm for extending the domain of a UOWHF. Our algorithm is based on non-complete l-ary tree and has the same optimal key length expansion as Shoup's which has the most efficient key length expansion known so far. Using the recent result [8], we can also prove that the key length expansion of this algorithm and Shoup's sequential algorithm are the minimum possible for any algorithms in a large class of "natural" domain extending algorithms. But its prallelizability performance is less efficient than complete tree based constructions. However if l is getting larger then the parallelizability of the construction is also getting near to that of complete tree based constructions.tructions.

Protective effects of Terminalia chebula Retzins (TC) water extract on acute pancreatitis (가자(訶子)의 급성 췌장염 보호 효과)

  • Bitna Kweon;Dong-Uk Kim;Gi-Sang Bae
    • Journal of Convergence Korean Medicine
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    • v.5 no.2
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    • pp.5-10
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    • 2023
  • Objectives: Terminalia chebula Retzins (TC) has been used as a traditional remedy to treat gastrointestinal infectious and inflammatory diseases. However, the protective effect of TC on acute pancreatitis (AP) has not been studied. In this study, we tried to investigate the protective effect of TC water extract on cerulein-induced AP. Methods: To measure the protective effect of TC on AP, mice were injected with cerulein (50 ㎍/kg) hourly for 6 times. TC water extract (200 or 400 mg/kg) or saline was administered orally 1 h before the first injection of cerulein. The mice were sacrificed at 6 h after the last injection of cerulein. Pancreas tissues were taken for further analysis. Results: The administration of TC water extract showed an inhibitory effect on the increase of pancreas weight/body weight ratio and mitigated pancreatic damage in mice. Also, mRNA level of pro-inflammatory cytokines was inhibited by administration of TC water extract. Conclusion: Taken together, we found that administration of TC water extract ameliorates the severity of cerulein-induced AP, which suggests the potential to be an effective treatment on AP.

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Design of a Vulnerability Exploit Framework for Secure External Hard Disks (보안 외장 하드디스크 취약점 익스플로잇 프레임워크 설계)

  • Sejun Hong;Wonbin Jeong;Sujin Kwon;Kyungroul Lee
    • Proceedings of the Korean Society of Computer Information Conference
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    • 2024.01a
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    • pp.117-121
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    • 2024
  • 기존의 외장 하드디스크는 보안 기능의 부재로 인하여, 비인가자로부터 디스크가 탈취되는 경우에는 저장된 데이터가 유출되거나 훼손되는 문제점이 존재한다. 이러한 문제점을 보완하기 위하여, 보안 기능을 제공하는 보안 외장 하드디스크가 등장하였지만, 보안 기능 중 패스워드나 지문 인증과 같은 사용자 인증을 우회하는 취약점이 지속적으로 발견됨으로써, 비인가자가 장치 내부에 안전하게 저장된 데이터에 접근하는 보안위협이 발생하였다. 이러한 보안위협은 국가사이버안보센터에서 공개한 보안 요구사항을 만족하지 못하거나, 만족하더라도 설계나 구현 과정에서 내포된 취약점으로 인하여 발생한다. 본 논문은 이와 같이 보안 외장 하드디스크에서 발생하는 취약점을 점검하기 위한 목적으로 보안 외장 하드디스크 익스플로잇 프레임워크를 설계하였다. 취약점을 점검하기 위한 전체 프레임워크를 설계하였고, 프레임워크에서 제공하는 각 기능 및 유즈케이스 다이어그램을 설계하였으며, 설계된 프레임워크를 활용한다면, 현재 상용화되었거나 추후 개발될 보안 외장 하드디스크를 대상으로 안전성을 평가할 것으로 판단된다. 그뿐만 아니라, 안전성 평가 결과를 기반으로, 보안 외장 하드디스크에 내재된 취약점을 보완함으로써 안전성을 더욱 향상시키고, 수동으로 분석하여야만 하는 보안 외장 하드디스크의 취약점 점검을 자동화함으로써, 안전성을 평가하는 시간과 비용 또한 절감할 것으로 사료된다.

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Distribution of Fishes around the Offshore Wind Farm at the Southern Part of Yellow Sea by Trawl Net (저인망에 의한 서남해 해상풍력 실증단지 주변 해역의 어류분포)

  • Choi, Youn;Lee, Heung-Heon;Oh, Jeong-Kyu
    • Korean Journal of Ichthyology
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    • v.26 no.3
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    • pp.222-229
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    • 2014
  • As a study for offshore wind farm, we investigated the fish fauna of the Wi-do, Younggwang-gun, Chollabuk-do, Korea. From the four times collection of fish species from October 2013 to June 2014, we collected 46 species of 26 families including 9 orders. Among them, the fish of family Gobiidae includes the most number of six species (13.6%). The dominant species was the Argyrosomus argentatus with 53.10%. Total of 17 fish species, including the Cynoglossus joyneri were collected from all of four collecting sites. On the other hand, 13 species including Inimicus japonicus were collected from only one site. Being the wind farm under construction, fish will temporary decrease in this area. But in the long term, we think that Oplegnathus fasciatus, Sebastes shlegelli and others will increase with good inhabited environment provided by the wind farm structures.

The Fish Fauna of the Kokunsan Island, Korea (고군산군도 연안 어류상)

  • Kim, Ik-Soo;Lee, Wan-Ok
    • Korean Journal of Ichthyology
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    • v.5 no.1
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    • pp.41-52
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    • 1993
  • During the investigation of fish fauna from the Kokunsan Islands off west coast of Korea from 1989 to 1993, authors confirmed 102 fish species belonging to 81 genera, 50 families and 12 orders. Of these the following 8 species were common : Herengila zunasi, Engraulis japonica, Johnius grypotus, Pholis fangi, Repomucenus ornatipinnis, Chasmichthys gulosus, Tridentiger trigonocephalus, and Cynoglossus joyneri. Of the twelve orders recognized herein, Perciformes, Scorpaeniformes and Pleuronectiformes include approximately 74% of the fish fauna in this area. The largest family is the Gobiidae representing 12 species. Pholis fangi, Repomucenus ornatipinnis, Repomucenus koreanus, Takifugu flavidus and Takifugu obscurus collected are endemic to the Yellow Sea. Fifteen specimens of an unknown Sebastes species was collected. This species resembles Sebastes hubbsi and Sebastes longispinnis, but the species differs from other sebastes species reported in Korea in the number of dorsal fin rays, lateral line pores, gill rakers and in color patterns of body sides.

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Ultrastructure of the Laval Hemocytes in Sericinus montela Grey (Lepidoptera: Papilionidae) (꼬리명주나비(Sericinus montela Grey) 유충혈구의 미세구조)

  • 채순용;김상석;권선방;양희영
    • Korean journal of applied entomology
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    • v.32 no.1
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    • pp.90-100
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    • 1993
  • Ultrastructure of the larval hemocytes in Sericinus montela Grey was observed with the transmission and scanning electron microscope. The 5 cell types, according to Breh lin and Zachary(1986), identified in the hemocytes of the last instar S. montela larva were; prohemocyte, plasmatocyte, granular cell, spherule cell and oenocytoid. Prohemocytes could be easily charaterized by a relatively large nucleus nd poorly developed cytoplasmic organelles. Plasmatocytes were relatively large spindle-shaped or oval cells with fibrous bundles. The spindle-shaped plasmatocytes, especially, were characterized by a well developed, elongated nucleus. Granular cells had various granules, either morphologically or in electron density, and highly developed cytoplasmic organelles in the cytoplasm. They had numerous cytoplasmic processes. Spherule cells were characterized by cytoplasmic spherules containing fine materials, which are released into the hemolymph upon maturity of the cell. Oenocytoids consisted of electron dense materials and the organelles in cytoplasm were poorly developed.

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Comparison Between the Costal Cartilage Mounted Autologous Pericardial Patch and the Bovine Pericardial Patch as a Bronchial Substitute for Bronchial Reconstruction in Dogs (개의 기관지 재건을 위한 대치물로서 늑연골편에 고정시킨 자가심낭막과 우심낭편과의 비교)

  • 이해영;박찬범;조건현
    • Journal of Chest Surgery
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    • v.34 no.5
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    • pp.386-392
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    • 2001
  • 배경: 기관지에 광범위한 협착을 가지고 있는 환자들에게서 협착된 기관지 이하 부위에 있는 폐를 절제하지 않고 기관지 협착 부위를 교정하여 폐환기를 원할하게 하고자 하는 다양한 술식의 기관지 성형술이 고안시도되어 왔지만 만족할만한 술기는 아직 정립되어 있지 않다. 저자들은 이러한 기관지 협착을 교정하기 위한 술식의 하나로서 기관지 대치물을 이용한 기관 성형술의 효과를 조사하기 위하여 본 실험을 시행하였다. 대상 및 방법: 기관지 대치물로 사용한 두 종류의 첨포에 따라 성숙견을 실험 동물로 하여 두 군으로 분류하였으며 A군(5예)에서는 좌측 주기관지 전측방 부위를 0.5$\times$0.5cm 크기의 직사각형으로 절제한 후 늑연골에 자가 심낭편을 댄 동일한 크기의 첨포를 절제 부위에 부착하였고 B군(5예)에서는 동일한 크기의 기관지 절제 부위에 glutaraldehyde로 처리된 우심낭편을 부착하였다. 첨포를 이용한 기관지 성형술 12주후에 실험견을 도살하고 육안적 및 현미경적으로 관찰하였다. 결과: A군이 기관지 성형술 부위에서는 첨포의 외면은 주위의 결합조직과 막상유착을 이루고 있었으며 첨포의 가장자리는 자가 기관지에 잘 부착되어 있었다. 기관지 내면은 내경의 협착이 없이 윤기 있는 점막으로 잘 유지되어 있었고 자가 기관지와 첨호와의 경계면은 신생육아조직이 일부 차지하고 있었으며 새로운 이행 상피가 가교를 이루고 있는 현미경적 소견을 보았다. B군의 기관지 성형술 부위에서는 첨포의 와부는 암갈색으로 변화된 부분적 괴사의 양상을 보였다. 기관지 내면은 첨포와 가자기관지 경계부위에서 염증성 육아조직과 부분적 출현 양상을 보고 기관지 내경의 일부가 수축되었으며 자가 기관지로부터 첨포내로의 새로운 상피 형성은 되어 있지 않았다. 결론: 늑연골에 자가 심낭편을 댄 첨포는는 자가 기관지와 상피 가교를 형성하고 기관지 내강의 협착이 없이 구조를 유지하므로 기관지 협착 및 결손의 치료를 위한 기관지 성형술시에 기관지 대치물로 사용될수 있는 것으로 사료된다.

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Safety evaluation of cosmetics in Europe

  • Rogiers, Vera
    • Journal of the Society of Cosmetic Scientists of Korea
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    • v.28 no.3
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    • pp.109-145
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    • 2002
  • Council Directive 76/768/EEC forms the basis of the actual legislation of cosmetics in the European Union (EU). After a short introduction on the background and philosophy of this legislation, the key points will be discussed. In particular, attention will be given to the basic principles for safety and in this context the effects of the implementation of the 6th Amendment (Council Directive 93/35/EC) will be analysed. The major points for discussion will be: the safety requirements for cosmetics and the final responsibility for bringing these products on the EU market; the EU concept of safety of the finished product based on the safety of the individual ingredients; the existence of positive and negative lists of ingredients and the requirement for a European dossier for all finished products. Special attention will be given to the use of validated alternative methods and the consequences of the new proposal of a 7th Amendment. Finally, the safety evaluation as it is done by the SCCNFP (Scientific Committee on Cosmetics and Non-Food Products) in the case of an ingredient present on the positive lists and the evaluation done by a safety assessor in the case of a technical information file for a finished product, both will be discussed in detail.