• 수산해양기술연구
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• 제53권3호
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• pp.246-255
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• 2017

The species composition and variation in abundance of fishery resources near Oenarodo, Go-heung Peninsula, Korea, were investigated by gill net, trap net, and longline in May, July, and October 2015 and 2016. During the study period, the total catch included 14 species in the gill net, 11 species in the trap net, and 4 species in the longline. The dominant species were Portunus trituberculatus and Raja pulchrain the gill net, Charybdis japonicaand and Octopus vulgarisin in the trap net, and Muraenesox cinereusin in the longline. The Catch Per Unit Effort (CPUE) per individual and per weight in the gill net were similar in May and July of 2015 and 2016. In October 2015, the CPUE per individual was 2.1 ind./h and the CPUE per weight was 505 g/h higher than the results in 2016, but there was no significant difference in the total CPUE between 2015 and 2016. In the trap net, the CPUE per weight was similar in both 2015 and 2016, but the CPUE per individual was 2.7 ind./h higher in October 2015 than in October 2016 and the total CPUE was not significantly different from 2015 to 2016. The CPUE per individual and weight in the longline were significantly higher in July and October 2015 than in the same months of 2016, but the total CPUE in 2015 and 2016 did not show a significant difference.

• 생명과학회지
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• 제17권10호
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• pp.1441-1446
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• 2007

본 연구는 서로 다른 상염색체에 위치하고 있는 초위성체유전 표지를 활용하여 제주마 집단의 타 품종과의 차별적 유전특성분석과 제주마 집단에서 활용할 수 있는 효율적인 개체 식별 시스템 설정을 위해 수행되었다. 공시재료로서는 5품종에서 총 191두가 사용되었으며 13종의 좌위에 대한 개체별 유전자형을 분석하였다. 이들 13종에서 출현된 총 대립 유전자수는 제주마의 경우 155종이 나타났다. 한국 제주마 집단에서 나타난 평균 이형접합도는 0.317-0.902였으며 marker 다형성 정보량은 0.498-0.799로 나타났다. 제주마 집단에서 나타난 대립 유전자 발현 특성은 다른 외래 품종 집단과 매우 상이한 결과를 나타냈다. ATH4 좌위의 경우 제주마 집단에서는 5종의 대립 유전자가 고른 분포를 나타낸 반면 QUA종의 경우와 THO종집단에서 특정 좌위의 극단적 발현 빈도를 나타냈다. 품종특이성을 나타내는 분자표지의 대립유전자 발현양상이 확인되었으며 이러한 품종특이성 발현 분자표지는 집단 내 개체에 대한 품종식별 유전자표지로 활용이 가능한 것으로 나타났다. 9종의 초위성체 유전 표지를 활용할 경우 누적 개체 식별력은 99.9%를 나타냈으며 두 마리의 서로 다른 개체가 서로 같은 유전자형을 가질 짝확률은 $0.60\;{\times}\;10^{10}$으로 추정되었다. 따라서 9종의 선정된 유전표지는 제주마 품종 집단에서 적정 신뢰도를 제공할 수 있는 개체 식별 시스템을 설정할 수 있을 것으로 생각된다.

• 한국자원식물학회지
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• 제20권1호
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• pp.63-68
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• 2007

본 연구는 호도나무 교잡종 과실의 양적 및 질적형질의 특성을 조사하였으며 입중 및 인중, 인중비 등 과실의 주요형질에 의한 품질이 우수한 개체를 선발하여 신품종을 육성하는데 필요한 기초자료로 활용하는 데 그 목적이 있다. 입중이 13g 이상이고 인중비가 50%이상의 양적형질의 선발기준에 의해 산성4호${\times}$Concord 8번 개체 등 4개체가 우량개체로 가장 유망시 되었다. 특히 봉합선 폭은 인중비가 높은 우량과실 및 개체를 선별할 수 있는 중요한 요인임을 확인할 수 있었으며 인중과 입중이 무거울수록 인의 길이가 긴 것으로 조사되었다. 격막의 두께는 두꺼울수록 인의 분리가 어려운 것으로 나타나 인의 분리용이도에 영향을 미치는 것으로 조사되었다. 질적형질은 개체 및 교배조합간 차이가 있는 것으로 조사되었으며 모든 형질에 대하여 동일개체 내에서 다양한 특성이 동시에 관찰되었다.

• Asian-Australasian Journal of Animal Sciences
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• 제28권4호
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• pp.584-591
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• 2015

This study characterized the fecal bacterial community structure and inter-individual variation in 30-week-old Duroc pigs, which are known for their excellent meat quality. Pyrosequencing of the V1-V3 hypervariable regions of the 16S rRNA genes generated 108,254 valid reads and 508 operational taxonomic units at a 95% identity cut-off (genus level). Bacterial diversity and species richness as measured by the Shannon diversity index were significantly greater than those reported previously using denaturation gradient gel electrophoresis; thus, this study provides substantial information related to both known bacteria and the untapped portion of unclassified bacteria in the population. The bacterial composition of Duroc pig fecal samples was investigated at the phylum, class, family, and genus levels. Firmicutes and Bacteroidetes predominated at the phylum level, while Clostridia and Bacteroidia were most abundant at the class level. This study also detected prominent inter-individual variation starting at the family level. Among the core microbiome, which was observed at the genus level, Prevotella was consistently dominant, as well as a bacterial phylotype related to Oscillibacter valericigenes, a valerate producer. This study found high bacterial diversity and compositional variation among individuals of the same breed line, as well as high abundance of unclassified bacterial phylotypes that may have important functions in the growth performance of Duroc pigs.

• 정보관리학회지
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• 제19권2호
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• pp.31-48
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• 2002

본 연구는 정보기술의 투자로 인해 변화된 정보환경과 경쟁환경 속에서 정보기술 자원의 활용도 향상을 위해 기업체의 정보관리 특성요인과 개인특성요인들을 중심으로 그 상관관계를 논하고 있다. 효율적인 정보 및 지식자원관리를 위해 정보자원 활용도에 유의한 영향을 미치는 것으로 파악된 요인들을 살펴봄으로써 기업체의 정보자원 활용도 향상을 위해 고려되어야 할 사항들에 대해 살펴보았다.

• 한국병원경영학회지
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• 제21권3호
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• pp.53-64
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• 2016

The study empirically examines the classic hypothesis on resource-based view(RBV) theory, which is the possible relationship between competitive advantage and performance. For the study, we have surveyed 198 hospital administrators in Korea. By testing the hypotheses at conceptual level, a more robust approach, we found that (1) if a hospital possesses and exploits resources and capabilities that are both valuable and rare, it will attain a competitive advantage, and (2) the attaintment of such advantage will enable the hospital to improve its performance. The results may be interest to both academics and practitioners. From an academic standpoint, the study more accurately captures the dynamics of the theory by pairing resources-capabilities as opposed to individual resources or capabilities. From a practitioner perspective, it is suggested that hospital managers need no necessarily seek out novel resources and capabilities, but rather develop novel ways in which to combine those resources and capabilities to which they do have access.

• 한국자원식물학회지
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• 제19권6호
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• pp.677-679
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• 2006

The objectives of this study were to examine the genetic variation of 20-year-old tree height and to estimate heritabilities and genetic gains of Korean white pine. Analysis of variance showed that families and family x block interaction had the significant (p=0.01) effects on tree height. However, family variation appears to be much greater than the variation due to family x block interaction. Individual tree heritability was higher ($h_I^2=0.73$) than family heritability, ($h_F^2=0.83$) therefore, combined selection showed the largest genetic gain (17.76%) in a given equal intensity of selection.

• Journal of information and communication convergence engineering
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• 제21권4호
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• pp.261-267
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• 2023

Public research, which requires large computational resources, utilizes the supercomputers of the National Supercomputing Center in the Republic of Korea. The average utilization rate of resources over the past three years reached 80%. Therefore, to ensure the operational stability of this national infrastructure, specialized centers have been established to distribute the computational demand concentrated in the national centers. It is necessary to predict the computational demand accurately to build an appropriate resource scale. Therefore, it is important to estimate the inflow and outflow of computational demand between the national and specialized centers to size the resources required to construct specialized centers. We conducted a logit model analysis using the probabilistic utility theory to derive the preferences of individual users for future supercomputer resources. This analysis shows that the computational demand share of specialized centers is 59.5%, which exceeds the resource utilization plan of existing specialized centers.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2021년도 봄 학술논문 발표대회
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• pp.85-86
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• 2021

KPI, an indicator that measures the performance of factors that contribute to achieving strategies of individuals or organizations, is used a lot to analyze the performance of construction work. Construction work consists of individual construction types with different characteristics such as progress method, scale, and input resources, but currently, KPIs for performance analysis of individual construction types are lacking. Therefore, this study aims to obtain and analyze data for establishing construction performance analysis KPIs during construction work to prepare the basis for the creation of future construction KPIs. Preliminary KPIs for earthwork performance analysis selected through this study are expected to be the basis for deriving preliminary KPIs for other individual construction types.

• 한국자원식물학회:학술대회논문집
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• 한국자원식물학회 2019년도 추계학술대회
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• pp.64-64
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• 2019

Screening and identification of genetic resources based on their phytoconstituents and morphological characters potentially provide baseline data for researchers, breeders, and nutraceutical companies who wish to formulate a nutrient-dense diet and health beneficial supplement. Thus, we evaluated the amount of total phenolic content and major phenolic compounds; examined if phenolic compounds could be used as distinguishing factors for perilla genetic resources; and investigated the relation between some quantitative and qualitative morphological characters with the contents of phenolic compounds in 360 accessions obtained from National Agrobiodiversity Center gene bank, Jeonju, Korea. Total phenolic content (TPC) was estimated using Folin-Ciocalteu colorimetric assay. Individual phenolic compounds were determined using an Ultra-High Performance Liquid Chromatography system equipped with Photodiode Array detector. Considerable variations were observed in TPC (7.99 to 117.47 mg GAE/g DE), rosmarinic acid (RA) (ND to 19.19 mg/g DE), caffeic acid (CA) (ND to 0.72 mg/g DE), apigenin-7-O-diglucuronide (ADG) (ND to 1.24 mg luteolin equivalent (LUE)/g DE), scutellarein-7-O-glucuronide (SG) (ND to 4.32 mg LUE/g DE), and apigenin-7-O-glucuronide (AG) (ND to 1.60 mg LUE/g DE). RA was the most dominant phenolic compound in most accessions (95.3%) followed by SG. The adaxial leaf color was light green, green and dark green in 13.8%, 65.0%, and 21.1 % of the accessions, respectively. 78.8% of the accessions had light green color at the abaxial side with the remaining being described as green. Most of the accessions (96.9%) were cordate shape, the remaining being eclipse. Intensities of green pigment at abaxial and adaxial leaf surfaces were correlated with contents of individual phenolic compounds and TPC whereas leaf length and width had no correlation with TPC, CA and RA, and negatively correlated with ADG, AG, and SG. Leaf shape was not related with content of phenolic compounds, color of leaves, or the length or width of leaves. Accessions IT57426, IT157434, IT267710, and IT267712 which contained relatively high contents of TPC and major phenolic compounds (RA and SG) could be used for further research in breeding and bioassay test. Our study result showed the contents of total phenolics and individual phenolic compounds along with the morphological characters could be useful distinguishing factors for perilla genetic resources.