• 한국환경생태학회지
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• 제33권4호
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• pp.408-421
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• 2019

수입되는 서양뒤영벌과 그에 대한 화분매개 대체안들을 비교 평가하기 위해 증분이익을 추정하여 분석하였다. 분석결과, 판매수익에서 공통 생산원가를 차감한 증분수익은 인공수분을 사용할 때보다 화분매개곤충을 사용할 때 더 많았으며, 증분원가는 수입산 서양뒤영벌이나 꿀벌을 사용할 때보다 국내산 서양뒤영벌이나 인공수분을 사용할 때 더 적었다. 각 대안별 증분이익을 살펴보면, 수입산 서양뒤영벌 46,801 백만원, 국내산 서양뒤영벌 47,170 백만원, 꿀벌 46,975 백만원, 인공수분 29,839 백만원이었다. 증분이익은 각 대안을 선택했을 경우 얻을 수 있는 회계적 이윤을 의미한다. 다만, 회계적 이윤 전부를 화분매개 대안이 기여한 것으로 볼 수 없으며, 귀속지대나 정상이윤과 같은 잠재적 비용이 포함되어 있다. 잠재적 비용에 해당하는 기회원가를 고려할 때, 수입산 서양뒤영벌을 사용하는 대안은 경제적 손실이 발생하는 것으로 나타났다. 이는 과수 작물 생산농가가 수입산 서양뒤영벌을 사용하는 대신 다른 대체안을 선택할 경우 추가적인 경제적 이윤을 창출할 수 있음을 의미한다.

• Animal Systematics, Evolution and Diversity
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• 제36권4호
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• pp.354-362
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• 2020

A common snapping turtle Chelydra serpentina inhabiting North America is internationally protected as an endangered species. It is known that the individuals of common snapping turtles were imported to South Korea as pets, and after being abandoned, some inhabit the natural ecosystem of South Korea like wild animals. No genetic survey has yet been performed for the common snapping turtles imported to South Korea. Hereby, cytochrome c oxidase subunit I (COI) information, which is 594 bp long, was determined for a total of 16 C. serpentina individuals, of which one was found in nature, twelve legally imported and their descendants, and the other three were provided from the Kansas Herpetological Society, USA. The obtained data were combined with thirteen COI sequences of C. serpentina retrieved from NCBI GenBank for the subsequent population genetic analyses. The results showed that there exist five haplotypes with high sequence similarity (only three parsimoniously informative sites). In the TCS and phylogenetic analyses, all the examined C. serpentina samples coincidently formed a strong monoclade with those collected mostly from Kansas State, USA, indicating that the imported ones to South Korea are from the central North America. In addition, there found the amino acid changes and the high degree of nucleotide sequence differences between C. serpentina and C. rossignoni with some important morphological characters. It is expected that the present results could provide an important framework for systematic management and control of exotic snapping turtles imported and released to nature of South Korea.

• 대한수의사회지
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• 제9권1호
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• pp.12-15
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• 1965

An outbreak during the summer of 1965 of Piroplasmosis caused by Theileria mutans among imported dairy cattle located at Sungwhan, Iri and Chunju, is described. As is well known, this parasite usually does not show any clinical signs but this case, we obs

• 한국연소학회:학술대회논문집
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• 한국연소학회 2014년도 제49회 KOSCO SYMPOSIUM 초록집
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• pp.143-144
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• 2014

The demand of diesel engine on the construction equipment has been rapidly increased because of thermal efficiency and power. But some of the construction equipment is imported from other country, since the their demands are not so large as compared with the other construction equipment. The imported construction equipments will be tested for emission with standard measurement mode. This study was conducted to measure emission characteristics of the construction equipment with changed standard measurement experimentally.

• 기술사
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• 제34권1호
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• pp.66-73
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• 2001

Imported China Jades are mostly talc and serpentine groups, and that's occured troubles for our health and life of living organism. Serpentine is a group of common rock-forming minerals having the formula : (Mg$.$Fe)$_3$Si$_2$O$\_$5/(OH)$_4$. Sometime, simulated by nephrite or jade and translucent varieties are used for ornamental and decorative purposes. But it's forbid by beating materials for sauna and heating mats etc. that reason are it's occured asbestos dusts (chrysotile dusts) easily by the heating operations.

• 복식
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• 제31권
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• pp.215-222
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• 1997

This is a study on Sil-Sil and Chun. Sil-Sil is a kind of turquoise. According to its burial place and use its identity was fixed, It was discovered in the Middle-East Asia like Iran and Tibet, Ancient China imported turquoise from these countries,. Korea also imported it in Shilla period. It was the empresses only who had the priviledge of using Sil-Sil for their ornaments such as hair-pins headdresses and combs. Chun was a sort of metal ornaments. Chun required a high-skilled work' and it showed how advanced its skill at that time.

• 한국수정란이식학회지
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• 제8권1호
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• pp.21-24
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• 1993

This study was carried out to investigate the effects of imported 0.25 ml straw frozen semen on fertilizing capacity after artificial insemination. A total of 57 ewes of Corriedale were inseminated at the Namwon Branch, National Anirnal Breeding Institute. Lambing percentage and twinning percentage were 12.3% and 114. 3%, resepectively. Average weight at birth and weaning of 120 days old were 4.5kg and 21.9 kg, respectively. Gestation period was 152.6 days.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2005년도 추계학술대회 논문집 전기물성,응용부문
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• pp.100-102
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• 2005

This paper presents evaluation of the electrical uniformity of zinc oxide varistors for lightning arresters. Two types of varistors were prepared which are a domestic varistor destroyed in the long duration current impulse withstand test and a new imported varistor. The domestic varistor exhibited good electrical uniformity except destroyed parts, but the imported varistor showed the worse results.

• 한국응용곤충학회지
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• 제22권1호
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• pp.30-34
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• 1983

Authors identified following seven species of six genera of Dinoderinae and Bostrichinae of Bostrichidae intercepted from imported logs. Keys and descriptions are given for the seven species. The distribution of each species is outlined Dinoderinae: Rizopertha dominica (Fabricius) Dinoderus minutus (Fabricius) Bostrichinae: Sinoxylon anale Lesne S. japonicum Lesne Heterobostrychus hamatipennis (Lesne) Xylothrips flavipes (Illiger) Xylopsocus castanopterus (Fairmair).

• 한국의류학회지
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• 제19권4호
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• pp.663-670
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• 1995

After I stated the characteristics of the ancient Buddha Banners of Shoso-in and Horyuji of Japan, 1 searched for the possible countries they could have been made in. 1 concluded that Japan imported above mentioned Buddha Banners from Korea from the fallowing reasons: 1. Almost no Banners in Heian Period. 2. Difference between Banner patterns of Nara period and them of Heian period. 3. Japan almost always imported Buddhist implements including Banners from Korea from 7th century 4. Resemblances between kinds and forms of the patterns of Shoso-in and Horyuji Banners, and them of Silla period.