• 한국경제지리학회지
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• 제3권1호
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• pp.35-51
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• 2000

국제교역흐름은 경제적 요인들 뿐 만 아니라 세계의 사회, 정치, 문화적 환경에 의하여 결정되어 왔다. 세계화와 더불어 국제교역환경도 빠르게 변화하고 있으며, 이러한 변화는 국제교역의 흐름에 상당한 변화를 주고 있다. 본 연구의 목적은 경제의 세계화가 국제교역의 흐름에 미치는 영향을 파악하고자 하는 것이다. 우선 국제교역에 나타나는 변화를 특히 경제적, 사회적, 정치적으로 국제적 연계가 강화되면서 나타나는 경제적 결합에 초점을 두어 산업 입지와 투자, 그리고 그 밖의 교역환경들과 연결하여 종합적으로 파악해 보았다. 특히 산업 입지에 변화를 주어 상품의 수요와 공급의 공간적 분포를 재편하는 역할과 함께 기업내 교역흐름을 확장시켜 결과적으로 국제교역패턴에 영향을 끼치고 있는 다국적 기업들에 의한 해외직접투자의 영향을 분석하였다. 기업내 교역은 해외직접투자의 흐름에 의해 결정되므로 본 연구에서는 해외직접투자의 기원지와 대상지의 지리적 특성을 분석하였다. 또한 해외직접투자와 기업내 교역의 공간적 분포에 나타나는 변화를 분석하였다.

• 한국어류학회지
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• 제18권3호
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• pp.163-169
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• 2006

한국산 송사리속 어류 2종 Oryzias latipes와 O. sinensis에 대한 분포역을 조사한 결과 O.sinensis는 서해안과 그 내륙지역에 제한되어 분포한 반면에 O. latipes는 한반도의 대부분 지역에 분포하고 있었고, 특히 서해안 지역의 대천지역에서는 두 종이 혼서하고 있었다. 또한 송사리와 대륙송사리는 척추골수와 새파수에서 잘 구분되고 있는데 척추골 수에서는 송사리가 평균 31개, 대륙송사리가 평균 30개이었으며 새파수는 송사리가 평균 15개, 대륙송사리가 평균 12개를 갖는다. 또한 체측반문에 있어서 송사리는 체측에 반점들이 존재하였지만 대륙송사리는 없었으며, 산란시기에 송사리는 배지느러미와 뒷지느러미에 노란색을 띠는 반면에 대륙송사리는 검은색을 띠고 있었다.

• Fisheries and Aquatic Sciences
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• 제9권3호
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• pp.101-106
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• 2006

The cytochrome c oxidase subunit I (COI) gene region of mitochondrial DNA (mtDNA) was examined in four abalone species to estimate its utility as a genetic marker using restriction fragment length polymorphism (RFLP) analysis. The utility was evaluated in terms of genetic divergence and relationships among Haliotis discus hannai, H. rufescens, H. rubra, and H. midae in both hemispheres of the world. There was clear genetic divergence in the mtDNA COI region between all pairs of the four species. Moreover, relationships among the abalone species were reflected in their geographical distributions and morphological characteristics. Therefore, RFLP analysis of the mtDNA COI region is a suitable genetic marker for the estimation of genetic divergence and relationships among abalone species. However, it is not effective for the evaluation of genetic differences within abalone species.

• Asian-Australasian Journal of Animal Sciences
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• 제17권9호
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• pp.1219-1222
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• 2004

The genetic diversities of 10 Chinese pig populations were analyzed by using microsatellite DNA polymorphisms. The results showed that the mean heterozygosities of the 10 populations were between 0.4561 and 0.6446, the mean polymorphism information contents were 0.4241-0.6184 and the mean effective number of alleles were 2.4295-3.7573. These indicated that the genetic diversity of local Chinese pigs was high. The clustering of the 10 populations was nearly inaccordance with their geographical distributions.

• 생명과학회지
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• 제12권6호
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• pp.676-681
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• 2002

긴팔원숭이는 영장목, 유인원 아목, 좁은코원숭이 상과, 사람과에 속하는 영장류로써 소형 영장류라고 불린다. 이들은 동남 아시아 일대의 열대 우림에서 종 분화에 성공한 영장류로써 현재 4속 12종이 동정 되어 있지만 이들 중 10종이 멸종 위기에 있다. 다양한 영장류 중에 가장 높은 멸종 위기에 있으면서도 아직도 정확하게 많은 종 또는 아종의 동정이 되지 않고 있는 실정이며 많은 연구가 필요한 종이다. 그러므로 정확한 지리학적 분포와 종의 동정을 통해 이들 긴팔원숭이의 계통 관계를 파악 하는 것이 긴팔원숭이의 종분화의 이해 및 보존을 위해 무엇 보다 중요하다고 사료된다.

• 한국안전학회지
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• 제24권5호
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• pp.113-121
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• 2009

The objective of this study is to develop highway advisory radio service for road safety oriented system design of the point by regional groups or geographical distributions. To develop these highway advisory radio service, traffic information provided service areas, responds for incident and accident, and road condition in service sections based on traffic information of highway advisory radio service. This study contributes to service of traffic information for safety driving, which is transport congestion areas and recognition of traffic congestion status in advanced traffic information service. As result of this study, systematic design of the advanced highway and traffic safety guides to management systems by highway advisory radio service.

• Animal Systematics, Evolution and Diversity
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• 제32권3호
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• pp.234-239
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• 2016

Two species of mantid shrimps were collected from southern part of Korea and identified as Kempella mikado and Squilloides leptosquilla of the Squillidae. The former species is characterized by having a dactylus of the raptorial claw with six teeth, only the fifth thoracic somite with a single spinous lateral process, and the fifth abdominal somite with a pair of black dorsal patches. However, the latter species is characterized by having a dactylus of the raptorial claw with four teeth, and the fifth to seventh thoracic somites each with a single lateral process. Both species are described with figures and photographs. The present records are extensions of their geographical distributions and new records in Korea. Hence, a total of six species of the stomatopods have been recorded in Korea up to date: Oratosquilla oratoria, Faughnia formosae, Taku spinosocarinatus, Chorisquilla spinosissima, Kempella mikado, and Squilloides leptosquilla.

• Journal of the Korean Data and Information Science Society
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• 제21권4호
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• pp.795-802
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• 2010

This study defined the genetic diversity of five breeds of cattle in Asia by analyzing 6 microsatellite markers in 270 animals. Based on expected mean heterozygosity, the lowest genetic diversity was exhibited in Japanese black cattle (HE=0.5849), and the highest in Chinese yellow cattle (HE=0.8073). Average proportion of genetic variation due to interpopulation subdivision among these five cattle breeds varied between 11.7 and 12.5%. The genetic distances were roughly divided into three groups: Japanese black cattle, Holstein, and the three remaining breeds. This clustering agrees with the origin and geographical distributions of these five cattle breeds.

• ALGAE
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• 제21권4호
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• pp.393-405
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• 2006

Eight species of Sargassum subgenus Bactrophycus section Halochloa and Repentia were collected from the coasts of Korea: Sargassum coreanum J. Agardh, Sargassum sagamianum Yendo, Sargassum micracanthum (Kützing) Endlicher, Sargassum macrocarpum C. Agardh, Sargassum autumnale Yoshida, Sargassum siliquastrum (Mertens ex Turner) C. Agardh, Sargassum serratifolium (C. Agardh) C. Agardh, Sargassum yezoense (Yamada) Yoshida et Konno. These species were investigated on morphological variations and geographical distributions in Korea. The valuable taxonomic characters between similar species of these section were discussed with special reference to types of holdfasts, shape of main branch, leaves and vesicles.

• Animal cells and systems
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• 제7권3호
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• pp.191-196
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• 2003

Taxonomic confusion has been presented within freshwater crayfishes of the genus Cambaroides since Starobogatov published morphological definition and revision of the group in 1995. He suggested that Cambaroides should be revised: the C. dauricus, contained three species C. dauricus, C. wladiwostokiensis, and C. koshewnikowi; the C. schrenckii with two. species C. schrenckii and C. sachalinensis. Also Straovogatov did not take into account the previous data. of crayfish distributions. In order to. clear up the confusion, the taxonomy of crayfish sampled from Mongolia, Russia, China, and North Korea was reassessed. Starovogatov's key could not lead to the correct identification. Also, detailed observations of apical robe of the male first pleopod did not support the taxonomy on the genus Cambaroides proposed by Starobogatov in 1995. However, some local variations of morphology exist in rostrum, pleuron, and telson of Asian crayfish. Future studies should be concentrated on whether there are geographical clines of morphology or if taxonomic subdivision is necessary.