• 건축사
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• 통권617호
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• pp.14-15
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• 2020

• 수산경영론집
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• 제36권2호
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• pp.25-52
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• 2005

Since late 1990's, the Fish Aquiculture Households belong Fishing Community have been faced very serious pressure of management. The surface factors of this situation have been understood to overproduction and too much imports from China, but basic factor was caused structural problem, that is considered small scale production system. Then, We should enlarge scale of the Fish Aquiculture Households belong Fishing Community to overcoming profitability aggravation. To the Enlargement of Scale, We should consider to change the regime of Fishing Community that means two practical programs. First, it need to enlarge the scale of Fishing Community than now, and Second, it need to incorporate the Fishing Community for exclusive Management of Fish Aquiculture Rights.

• 대한산업공학회지
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• 제40권4호
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• pp.375-381
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• 2014

Data mining is a process of discovering useful patterns or information from large amount of data. Decision tree is one of the data mining algorithms that can be used for both classification and prediction and has been widely used for various applications because of its flexibility and interpretability. Decision trees for classification generally generate a number of rules that belong to one of the predefined category and some rules may belong to the same category. In this case, it is necessary to determine the significance of each rule so as to provide the priority of the rule with users. The purpose of this paper is to propose a rule selection method in classification tree models that accommodate the umber of observation, accuracy, and effectiveness in each rule. Our experiments demonstrate that the proposed method produce better performance compared to other existing rule selection methods.

• Mycobiology
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• 제28권4호
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• pp.197-201
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• 2000

The distribution and occurrence of aquatic zoosporic and terrestrial fungi were investigated in 21 well waters in Assiut governorate, Egypt. Using a zoospore capture technique, 923 colonies of aquatic freshwater fungi were recovered from well waters, out of which 811 colonies reached sexual maturity. These colonies were assigned to 23 species which belong to 11 genera. The most common genera were Achlya, Saprolegnia and Dictyuchus. Using two types of media, 35 species in addition to 2 varieties of terrestrial fungi which belong to 18 genera were also recovered. The most frequent glucophilic genera (recovered on glucose-Czapek's agar at $28^{\circ}C$) were Aspergillus, Penicillium and Fusarium. The results obtained on cellulose-Czapek's agar at $2^{\circ}C$ were basically similar to those on glucose agar and the most frequent genera were Aspergillus, Penicillium and Fusarium followed by Chaetomium and Cephalosporium.

• 한국지하수토양환경학회:학술대회논문집
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• 한국지하수토양환경학회 2003년도 총회 및 춘계학술발표회
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• pp.389-392
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• 2003

Coalfields in Korea have been grouped into thirteen based on mainly geographycal and geological structure, ten out of which have been developed. To classify the phisico-chemical characteristics of mine drainage from each coalfield and, if possible, to clarify the intrinsic reasons of them. Sampling of waters from 59 mines in eight coalfields has been carried out. Higher pH of drainage water from the mines of the Cungchung coalfield belong to the Beading system, Mesozoic era than those belong to the Pyungan system, Proterozoic era is due to the low content of sulfides of neighboring strata. The drainage from coal beds overlying limestone bed mostly show high pH. Waters from the Gangrung and Samchuck coalfields coal beds are located within black shale formation which contains a lot of sulfides showed mostly very high metal and S $O_{4}$$^{2-}$ concentrations.

• 한국의사학회지
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• 제20권2호
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• pp.65-69
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• 2007

Although a table of descent is a mandatory primary source for studying medical persons, but most of those who practiced medicine were not but of step families. Because members of step families are not usually recorded accurately, preceeding studies did not put much emphasis on them. But as more researchers study biography and the number of studies done on historical figures are increasing tremendously, its value as a source has increased as well. In order to research a person, obtaining background information is a priority, which includes to what family they belong to, to what specific branch of the family they belong to, etc. Whether or not the person has ever worked with a public institution is important as well.

• 한국사회복지학
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• 제62권3호
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• pp.59-81
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• 2010

본 연구는 장애인의 작업장 차별인식에 영향을 미치는 요인들이 무엇인지 그리고 장애인의 작업장 차별인식이 차별의 통계적 증거와 부합하는지를 살펴보았다. 장애인은 연령이 낮을수록, 근속기간이 길수록, 임금수준이 낮을수록, 50인 미만 작업장보다 50인 이상 작업장에 근무하는 경우 작업장에서 차별을 인식할 가능성이 높았다. 또 여성보다는 남성이, 근속기간이 길수록, 임금수준이 낮을수록, 50인 이상 작업장에 근무하는 경우 임금 영역에서 차별을 인식할 가능성이 높았다. 그리고 장애인의 작업장 차별인식은 차별의 통계적 증거와 부합하는 것으로 나타났다.

• 한국게임학회 논문지
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• 제10권4호
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• pp.49-61
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• 2010

본 논문의 목적은 MMORPG의 길드 시스템이 사용자 커뮤니티 활성화에 영향을 미치는가를 실증분석하는 것이다. 이를 위해 본 논문은 온라인 게임 '군주'의 사용자 2,876명을 대상으로 설문조사를 실시, 이를 분석하였다. 연구 결과 MMORPG의 길드에 소속되어 있는 사용자는 소속되지 않은 사용자에 비해 사회적 지원이 더 활발하게 이루어지고 있음을 확인 할 수 있었다. 특히 길드 내적 사회적 지원이 길드 외적 사회적 지원보다 더 커뮤니티 활성화에 기여하는 것으로 드러났다.

• Animal Systematics, Evolution and Diversity
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• 제16권2호
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• pp.133-140
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• 2000

한국 연안의 8개 지점에서 채집된 굴상과의 표본을 동정 분류한 결과, Pycnodonteidae과의 2종, Parahyotissa chemnitzi (Hanley. 1786), P. inaequivalvis (Sowerby, 1871)와, Ostreidae 과의 3종, Dendostrea folium (Linnaeus, 1758), Ostrea futamiensis (Seki, 1929), Saccostrea mordax (Gould, 1850)는 한국 미기록종으로 확인되었다.

• 한국조경학회지
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• 제32권3호
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• pp.18-31
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• 2004

Ecological network can solve the ecological problems such as habitat cutting and fragmentation that are resulted from urbanization. Recently, rooftop biotope construction has been appeared as a usefull method for ecological networking in urban area. The objective of this study is to seek the possibility of rooftop greening introduction as well as to select target species for rooftop greening construction from the urban ecological network point of view. In order to select target species, we monitored two adjacent rooftop greening sites, where we found 22 species of birds and insects and 33 species of plants. We set criteria to select target species through documents research, and gave marks species according to the criteria with the help of specialists. We divided the target species into 5 groups on the basis of the 12 selecting criteria. In those two monitored rooftop greening sites, we did not find any species belong to group A, which is the best target species, but we found species belong to the other groups. Orthetrum albistylum, Sympetrum dawinianum belong to group B, which is the priority target species, 7 species besides Passer montanus, Coccinella axyridis, Agrionidae to group C, which is the possible target species, 6 species besides Atractomorpha lata to group D, which is the potential target species, and the others were found to be inadequate to the target species. We found Orthetrum albistylum, Sympetrum dawi-nianum to be the best appropriate target species in the two sites. According to the result of this study, the method of ecological network construction from the dra-gonfly habitat network point of view through the construction of rooftop habitat is ideal for Orthetrum albistylum, and Sympetrum dawinianum. For successful urban ecological network construction, selection criteria and construction techniqes & methods for rooftop habitat should be developed through future research.