• 한국게임학회 논문지
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• 제8권3호
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• pp.23-30
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• 2008

게임 완성도 향상 및 수출 증가 등 게임산업 경쟁력 강화를 위해서 수요자들의 게임만족도가 일정한 수준에 도달해야 되며 이를 위하여 기존 또는 향후 개발되는 게임들의 만족도가 어느 정도 되는지를 평가할 수 있는 연구가 필요하다. 본 논문에서는 게임산업의 경쟁력과 부가가치를 높이기 위한 방안으로 게임만족도 요소들의 점수분포를 추정하는 방법을 연구하였다. 그리고 온라인 RPG 게임을 대상으로 얻은 설문자료에 근거하여 SAS/INSIGHT의 모수적 밀도함수 추정방법을 이용하여 만족도 요소들의 점수분포를 각각 정규분포로 추정하였다. 제안된 방법을 활용하여 기존 또는 향후 개발되는 게임들의 만족도 수준과 기준을 예측할 수 있는 기대효과를 얻을 수 있다.

• Journal of Species Research
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• 제9권3호
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• pp.280-287
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• 2020

In the family Crisiidae (Bryozoa: Cyclostomata), 90 species have been recognized worldwide in seven genera: Bicrisia d'Orbigny, 1853, Crisia Lamouroux, 1812, Crisidia Milne Edwards, 1838, Crisiella Borg, 1924, Crisiona Canu & Bassler, 1928, Filicrisia d'Orbigny, 1853 and Unicrisia d'Orbigny, 1853. Four species in Crisiidae are described from 11 localities from 2008 to 2014, resulting in two new distributional records and two new species in Korea. The new additions to the fauna are: Crisia cuneata Maplestone, 1905, C. elongata Milne Edwards, 1838, C. jejuensis n. sp. and Filicrisia cygnus n. sp. A total of seven Korean crisiids with the addition of four species reported herein are recorded and distributed in three genera: Bicrisia, Crisia and Filicrisia. Accordingly, the Korean cyclostomatous bryozoans come to be 12 species, in eight genera, and five families. All of Korean Crisia eburneodenticulata specimens needed to be reexamined, thus this species is tentatively deleted from the Korean bryozoan fauna.

• 한국응용곤충학회지
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• 제45권2호
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• pp.107-112
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• 2006

중국 동북지역에서 채집된 잎말이나방과의 꽃애기잎말이나방족을 대상으로 분류동정 한 결과, Semnostola megnifisa (Kuznetsov)가 중국에서는 처음으로 보고 된다. 이 외에 중국 동북지역에서 처음으로 분포가 확인되는 4종(Ancylis badiana (Denis et Schifferm$\"{u}$ller), Blastethia turionella (Linnaeus), Eucosma aemulana (Schl$\"{a}$ger), Sillybiphora devia Kuznetsov) 및 흑룡강성미기록종인 Rhopalovalva grapholitana (Caradja)에 대하여 간략한 외부형태적 특징과 분포, 기주식물정보를 정리하였으며, 성충 및 암수생식기의 특징을 도해하였다.

• 한국환경생태학회지
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• 제29권2호
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• pp.200-209
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• 2015

This study was conducted to investigate the distributional characteristics of ground beetles and to provide basis information for biodiversity management including the ground beetles in the Naejangsan National Park area. Pitfall traps were installed throughout 20 sites within Naejangsan National Park during 2008 to 2011 to collect ground beetles. A total of 2,409 collected ground beetles were identified with 35 species belonging to 19 genera of 8 subfamilies. Coptolabrus jankowskii jankowskii, Eucarabus sternbergi sternbergi, and Pterosticus audax were dominant at the core area, while Pheropsophus jessoensis, Synuchus nitidus, Synuchus cycloderus, and Chlaenius naeviger were dominant at the border of the National Park and adjacent to the road or grassland. These differences of dominant species also affected to the similarity of species composition between core and border area, and caused increasing dissimilarities between sites with cluster analysis. Although the result of the present study was a case study using ground beetles, it will be helpful to develop a management strategy of biodiversity conservation in Naejangsan National Park and its surroundings.

• 농업과학연구
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• 제46권3호
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• pp.683-687
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• 2019

The leafhopper genus Batracomorphus Lewis, 1834 belongs to the tribe Batracomorphini (Hemiptera: Auchenorrhyncha: Cicadellidae: Iassinae). B. irroratus Lewis, 1834 was designated as its type species. The genus includes most diverse species in the subfamily Iassinae and contains approximately 350 described species from the world. In Korea, four Batracomorphus species, B. allioni (Turton, 1802), B. punctilliger Anufriev, 1981, B. stigmaticus (Matsumura, 1912), B. viridulus (Melichar, 1902), have been reported in the Korean peninsula. The members of this genus have a similar body size and similar general appearances; thus, it is very difficult to identify clearly without examining the male's genital structures. In this study, Batracomorphus furcatus Li and Wang, 2003 is newly reported from Korea for the first time. This species is previously known to be from China. Herein, the morphological information of B. furcatus Li and Wang is provided with a re-description, photographs of the male dorsal habitus, illustrations of the genitalia structure and distributional records. In addition, a key to the Korean five species of Batracomorphus is presented.

• Genomics & Informatics
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• 제17권2호
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• pp.20.1-20.5
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• 2019

Entity normalization, or entity linking in the general domain, is an information extraction task that aims to annotate/bind multiple words/expressions in raw text with semantic references, such as concepts of an ontology. An ontology consists minimally of a formally organized vocabulary or hierarchy of terms, which captures knowledge of a domain. Presently, machine-learning methods, often coupled with distributional representations, achieve good performance. However, these require large training datasets, which are not always available, especially for tasks in specialized domains. CONTES (CONcept-TErm System) is a supervised method that addresses entity normalization with ontology concepts using small training datasets. CONTES has some limitations, such as it does not scale well with very large ontologies, it tends to overgeneralize predictions, and it lacks valid representations for the out-of-vocabulary words. Here, we propose to assess different methods to reduce the dimensionality in the representation of the ontology. We also propose to calibrate parameters in order to make the predictions more accurate, and to address the problem of out-of-vocabulary words, with a specific method.

• 환경영향평가
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• 제21권3호
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• pp.431-443
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• 2012

Wind holes or air holes, from which cool air blows out during the summer, but mild air comes out during the winter, have provided the phytogeographically important refugia for cryophilous or cold-loving boreal flora during the Holocene period. At present, wind holes are serving as a faraway disjunctive habitat for Pleistocene relict glacial floristic elements, and present an invaluable information to reconstruct the natural history. Present work aims to collate the nationwide distribution and relevant DB on the potential wind holes of Korea based upon media and literature sources, along with geographical informations, such as place name, topographic map, environmental geographical information, flora, monitoring data of Korea National Arboretum, and field survey data. Geographical information on sixty nine wind hole sites have compiled and analyzed on the basis of flora and presence of fossilized periglacial landforms, such as talus, block field, and block stream, and sixteen sites have thereafter carefully selected and scrutinized through field surveys. To maintain a sustainability of wind hole ecosystem, including their original landform, micro-meteorological phenomena and plant community therein as a refugia or habitat for relict plant species of Pleistocene glacial period, appropriate restrictions and preservation measures are required.

• 한국어류학회지
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• 제18권1호
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• pp.12-19
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• 2006

본 연구에서는 극동지역 Oryzias latipes의 지리적 분포와 미토콘드리아 cytochrome b (cyt b)의 유전적 다양성과의 관계를 밝히기 위해 전국 9개의 지역에서 53개체를 채집하여 얻은 cyt b 염기서열과 GenBank에 등록되어있던 117개의 데이터를 종합하여 이를 142개의 haplotype으로 새로이 변환하였고, 이의 계통수를 작성 분석하였다. 분석 결과 극동지역 송사리는 3개의 haplogroup (A, B, C)으로 나뉘어지며, haplogroup A는 남한의 남한아지역을 중심으로 남한 전역에 분포하며, haplogroup B는 중국와 남한의 서한아지역에 걸쳐 분포하며, haplogroup C는 일본에만 분포하였다. Haplogroup A는 haplogroup B와 한반도내에서 지리적으로 가깝게 분포하고 있으나 계통적으로는 상당한 거리를 가지고 뚜렷하게 구별되었다. haplotype의 분지양상은 선행된 연구결과와 거의 일치하였다.

• Asian-Australasian Journal of Animal Sciences
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• 제18권2호
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• pp.165-169
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• 2005

This study was performed to offer effective basic data for selection and improvement of Korean dairy cattle through identifying distributional properties among candidate genes (bovine butyrophilin, signal transducers and activators of transcription 5a, and prolactin hormone). In this study, polymorphisms of candidate genes were identified and the relationships between loci and production traits of each gene were analyzed using frozen semen of Holstein bulls (19 proven and 77 candidates). In butyrophilin (BTN) locus, polymorphisms information contents (PIC) value of BTN2 (0.372) was higher than those of others (BTN1; 0.155, BTN3; 0.254, BTN4; 0.169). As a result of analysis of genotyping STAT5a, using single stranded conformational polymorphism (SSCP) method and microsatellite locus, PIC values were 0.189 and 0.457, respectively. And PIC value of prolactin hormone gene was 0.176. In the relationships between genotypes and production traits, BTN3 was associated with 305-day production traits (p<0.05). PTAs for B allele were such as 110.43, 88.28 and 75.25 in BTN1, 3, 4 and these values were higher than those of A allele, but in the case of BTN2, A allele with 154.19 was higher than that of B allele. The results obtained from using candidate genes may be used as an useful index for the genetic improvement of dairy cattle population in Korea, and further studies are needed.

• Journal of Ecology and Environment
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• 제37권4호
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• pp.217-223
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• 2014

We conducted a distributional survey of Pectinatella magnifica, an invasive species, in the Geum River and the Nakdong River from July 12 to July 25, 2014. The spacing between the study sites was 10 km along the main channels for the Geum River (n = 12, 120 km) and the Nakdong River (n = 38, 380 km) from the estuarine barrage to upper part of main channel. Pectinatella magnifica was detected along the riparian zone (within 100 m) at each of the study sites. Presence rate of P. magnifica in Geum River and Nakdong River was 25% and 32.6%, respectively. The colony number of P. magnifica at Geum River ($9.5{\pm}3.1colony/m$, n = 3) was over 94 fold higher than that in the Nakdong River ($0.1{\pm}0.1colony/m$, n = 16). The Total length distribution of P. magnifica had a truncated bell shape at each rivers (mean length: $14.0{\pm}1.2cm$ for Geum River (n = 32), and $16.8{\pm}1.4cm$ for Nakdong River (n = 52)). These findings could provide basic information regarding the distribution pattern of P. magnifica in a new invasion area.