• Parasites, Hosts and Diseases
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• v.24 no.1
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• pp.3-141
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• 1986

간흡충은 우리나라를 비롯하여 중국, 대만, 일본 및 월남등지에 널리 분포되어 있으며 1947년에 Stoll씨의 통계에 의하면 세계적으로 1,900만명이 넘는 감염자가 있다고 하였다. 현재 우리나라에서만 약 200만명의 간흡충 감염자가 있을 것으로 추산되고 있다. 간흡충은 McConnell이 1874년에 인도의 Calcutta에서 한 중국인의 간담도에서 본충을 처음 발견한 것이다. 이것을 Cobbold(1875)가 Distoma sinense라고 명명하였다가 후에 Looss (1907)가 Clonorchis sinensis라고 하였다. Kobayashi (1910)는 담수어가 간흡충감염의 중간숙주로 작용한다는 것을 처음으로 발견하였고 Muto (1918)에 의하여 왜우렁이가 제1중간숙주임을 발견함으로서 간흉충의 생활사가 확실해 졌다. Faust 및 Khaw (1927)에 의하여 중국에서 간흡충의 생물학 및 역학에 관한 광범한 연구업적이 발표된 이래 일본, 한국, 중국등 여러곳에서 많은 사람들에 의하여 연구되어 왔다. 그러나 적절한 치료방법이 없었고 또 민물고기를 생식하는 식습관과 위생시설의 미비등 여러가지 요인때문에 예방이 어려움에 직면하였다. 최근 다행히 새로이 개 발된 praziquantel이 간흡충중에 대하여 우수한 치료효과를 나타내고 집단치료에도 적합하다는 것이 증명됨으로서 간흡충증 예방과 관리에 큰 서광이 보이게 되었다. 따라서 간흉충증의 발생과 임상적 병증의 중요성을 좀 더 이해하기 위하여 간흡충체의 미세구조, 병인, 역학, 임상증상등 최근 알려진 새로운 지견과 우리나라에 있어서 간흡충증의 분포 및 유행지 형성 상황을 수학적으로 역학적 분석을 시도하였다. 그리고 과거 간흡충중의 화학치료에 관한 연구성적을 종합하여 화학요법제의 특성 빚 치료 적용여부에 대하여 논하였고 각약제의 시험관내 및 실험동물에 있어서의 살충효과와 임상시험에 있어서의 치료효과 및 부작용에 대하여 기술하였다. 그리고 새로 개발된 praziquantel의 간흡충에 대한 작용기전에 대하여도 논하였다. (중략)

• Korean journal of applied entomology
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• v.35 no.4
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• pp.287-296
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• 1996

Twenty four newly recorded and rarely known noctuid species from the Korean peninsula, which are preserved in domestic and foreign museums, are discussed in this article. Eleven species; Hypenodes curvilinea Sugi, Polydesma boarmoides (Guenee), Catocala bokhaica (Kononenko), Xanthomantis contaminata (Draudt), Craniophora harmandi (Poujade), Amphipyra acheron Draudt, Orthogonia tapaishana (Draudt), Chasminodes u.ssurica Kononenko, Oncocnemis campicola Lederer, Protomiselia bilinea (Hampson) and Xestia (Anomogyna) albonigra (Kononenko) are newly reported from the Korean peninsula. Among them, P. bilinea (Hampson), which has been known in Japan, is reported for the first time from the Continental Asia. The occurrence of Athetis pallidipennis Sugi, Pseudocosmia maculata Kononenko, Callopistria miracula Herz and Lacanobia dentata Kononenko are reconfirmed in Korea. Eudocyma salamina (Cramer) and Polydesma boarmoides Guenee are .considered to be tropical migrating species. A previously misidentified species, Hypenodes rectifascia Sugi is corrected as H. curvilinea Sugi.

• Korean Journal of Plant Taxonomy
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• v.46 no.3
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• pp.283-287
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• 2016

Field work conducted in Natma Taung National Park, Chin State, Myanmar, in 2015 to make a checklist of lycophytes and ferns resulted in the discovery of four fern species not previously recorded in the flora of Myanmar. All occur in other countries in southeastern Asia, and in other tropical areas. The species are as follows: Adiantum monochlamys (Adiantaceae), Ctenitis decurrentipinnata (Dryopteridaceae), Pteris tripartita, and Paragymnopteris vestita (Pteridaceae). These findings will enable us to update the checklist of ferns of Myanmar.

• Communications for Statistical Applications and Methods
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• v.16 no.1
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• pp.127-135
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• 2009

It is necessary to forecast the amount of the maximum electricity demand for stabilizing the flow of electricity. The time series data was collected from the Korea Energy Research between January 2000 and December 2006. The data showed that they had a strong linear trend and seasonal change. Winters seasonal model, ARMA model were used to examine it. Root mean squared prediction error and mean absolute percentage prediction error were a criteria to select the best model. In addition, a nonstationary generalized extreme value distribution with explanatory variables was fitted to forecast the maximum electricity.

• Journal of the Speleological Society of Korea
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• no.95
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• pp.23-33
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• 2009

This study analyzed the distribution of China's caves and cave resources in Research. The results are as follows: First, China's melting karst caves are mainly distributed in southwest widely distributed. Recently in Beijing and other northern areas found in many caves. First, China's Karst caves are mainly distributed in karst-flung southwest. Recently in Beijing and other northern areas found in many caves. Second, although China is widespread volcanic landscapes, but most of the extinct volcano, the lava caves less so. Are mainly distributed in Hainan Island, north-east there are some distribution. Third, China's recent development and evolution of the cave, analysis of the paleo-environment records of cave stalagmites, cave biology, cave tourism development, environmental aspects of cave research more active.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.28 no.4A
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• pp.431-438
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• 2008

An updated Monte Carlo procedure for Typhoon simulation is presented to estimate the extreme wind speed at typhoon prone southern and western coasts in Korea. The reconstructed wind field model for typhoon in this study is compared with measured typhoon data for validation. The fitness of the proposed probability distribution models for typhoon parameters are tested by using data for the typhoon passed near the specific site. The simulated maximum wind speed associated with various return periods along southern and western coasts indicate that the extreme wind speed gradually increases inversely according to latitude of the coast, and that the basic wind speeds given in Korea Bridge Design Code are excessive compared with present results.

• Journal of The Geomorphological Association of Korea
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• v.18 no.3
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• pp.53-64
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• 2011

Grus weathering mantles are widely distributed in Southern Korean Peninsula and are considered to be results of chemical weathering related to palaeoclimate milieu. This paper attempts to address this issue by CIA(chemical index of alteration). The climatic approach to the formation of grus mantles offers limited explanation of field occurrences, as these materials are widespread across climatic zones, from the humid tropics to cool temperate areas, although rates of grusification are likely to be influenced by climatic parameters. CIA values for granitoid weathering mantles in S. Korea are 50, which is the same of unweathered granitic rocks. Grus mantles in Korean peninsula show very low level in chemical alteration by CIA.

• Korean journal of applied entomology
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• v.59 no.3
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• pp.217-231
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• 2020

In 2019, the sex pheromones of Spodoptera frugiperda were used to examine moth trapping in cornfields in Gochang, Korea. Four types of traps were prepared, two funnel-types and two delta-types, each baited with 300 or 1000 ㎍ of a two-component (2C) blend of synthetic sex pheromones [100% (Z)-9-tetradecenyl acetate (Z9-14Ac) and 2% (Z)-7-dodecenyl acetate (Z7-12Ac)]. The greatest number of S. frugiperda were captured in the 300 ㎍ funnel-type trap (first catch: August 6). Large numbers of Mythimna loreyi (a non-target) were also caught in the funnel-type traps. Two wing-type traps were baited with 1000 ㎍ of the 2C blend or a four-component (4C) blend [100% (Z)-9-tetradecenyl acetate, 8% (Z)-11-hexadecenyl acetate (Z11-16Ac), 2% (Z)-7-dodecenyl acetate, and 1% (Z)-9-dodecenyl acetate (Z9-12Ac)] and the capture efficiency was assessed. Low numbers of S. frugiperda were captured regardless of the blend, and more M. loreyi were captured using the 4C blend. The two intraspecies groups clustered separately in a phylogenetic tree constructed using partial sequences (1004 bp) of cytochrome c oxidase subunit 1 (CO1). Of the 70 S. frugiperda captured in the pheromone traps, 66 belonged to CO1-RS (CO1 rice-strain) and 4 to CO1-CS (CO1 corn-strain). Twelve consistent single nucleotide polymorphisms (SNPs) were identified in CO1 between the CO1-RS and CO1-CS groups of S. frugiperda. Of the 73 S. frugiperda, 4 had the same SNP pattern as the CO1-CS group (including the corn strain) and 69 had the same SNP pattern as the CO1-RS group (including the rice strain).

• Parasites, Hosts and Diseases
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• v.30 no.4
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• pp.255-258
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• 1992

Two fully matured specimens were collected from the blood vessel of two fish, Tlreragra chatcogramma, which was bought at the Emun market of Seoul in May, 1985. The blood cuke has no pharynx and suckers. Its body surface was covered with minute spines forming fan-shaped groups, 15 Mm long. The intestine was H-shaped, and the ratio of esophageal length to body length was 1 : 6.1∼6.8. Irregular shaped testes were 109∼114 in number, occupying the intercecal space from cecal bifurcation to the genital pore. The present species was identified as Aporocotyle sheragrae. This is the first report of the species in Korea.

• Proceedings of the Mineralogical Society of Korea Conference
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• 1996.10a
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• pp.104-118
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• 1996

타이에서 작물 생산성이 낮은 주요 원인은 토양중 식물양분인 질소, 인산 및 유황의 부족에 기인되었다. 이같은 부족현상은 원래 척박한 토양에 충분한 시비가 이루어지지 못한데 기인된다. 더욱이 유황을 함유하지 않은 고농도 복합비료의 사용으로 이와같은 현상이 심화되었다. 최근 농경지 토양 분석결과 모집단의 $70\%$에서 유황부족이 나타난 것으로 확인되었다. 타이에서의 유황연구 사업은 유황과 작물생산성과의 관계를 이해하는데 큰 도움을 주었다. 유황부족 토양은 농림부에서 현지포장 시험에 의해 1974년에 밝혀졌다. 1985년부터 1992년까지 국제농업연구 호주센터와 UN 식량농업기구의 공동으로 인산과 유황비료의 효율적인 관리제도 방법을 개발하였다. 이에 부가하여 열대작물 재배체계에서 인산과 유황결핍 진단을 위한 토양 및 식물체 분석을 발전시켰고 또한 대체 유황 자원도 검토하였다. 끝으로 농경지에서 토양 유황 분포도는 유황비료를 추천하는데 보다 좋은 방법으로 이용되었다.