• The Journal of the Korea Contents Association
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• v.16 no.8
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• pp.332-344
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• 2016

This study aimed at investigating the effects of grouping participants in pairs according to their relative vocabulary proficiency on the incidental improvement of vocabulary knowledge. Forty six university students were divided into three groups (high-high(n=14), high-low(n=18), or low-low(n=14)) and took part in the study. They performed three vocabulary activities in pairs as extra-class works. Data were collected from one receptive vocabulary knowledge test scores before treatment and two posttest scores after treatment. The results showed that, unlike former study results, HL dyads acquired more vocabulary receptively and productively than HH or LL dyads did, which demonstrated that collaborative pair activity was conducive to the growth of vocabulary knowledge. Furthermore, not only higher proficiency participants in HL pairs made greater vocabulary gains than participants in HH pairs did but also lower proficiency participants gained more vocabulary than participants in LL pairs did. Based on these results, we discussed pedagogical implications.

• Journal of Korean Society of Transportation
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• v.23 no.3 s.81
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• pp.125-136
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• 2005

The current traffic accident reduction procedure in economic feasibility study does not consider the characteristics of road and V/C ratio. For solving this problem, this paper suggests methods to be able to evaluate safety of each road in construction and improvement through developing accident Prediction model in reflecting V/C ratio Per road types and traffic characters. In this paper as primary process, model is made by tke object of urban roads. Most of all, factor effecting on accident relying on road types is selected. At this point, selecting criteria chooses data obtained from road planning procedure, traffic volume, existence or non-existence of median barrier, and the number of crossing point, of connecting road. and of traffic signals. As a result of analyzing between each factor and accident. all appear to have relatives at a significant level of statistics. In this research, models are classified as 4-categorized classes according to roads and V/C ratio and each of models draws accident predicting model through Poisson regression along with verifying real situation data. The results of verifying models come out relatively satisfactory estimation against real traffic data. In this paper, traffic accident prediction is possible caused by road's physical characters by developing accident predicting model per road types resulted in V/C ratio and this result is inferred to be used on predicting accident cost when road construction and improvement are performed. Because data using this paper are limited in only province of Jeollabuk-Do, this paper has a limitation of revealing standards of all regions (nation).

• Journal of Plant Biology
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• v.34 no.2
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• pp.145-150
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• 1991

제주도에서 서식하고 있는 무릇의 게놈 분포와 B염색체의 출현 빈도를 조사하였다. 게놈의 유형은 BB, ABB, ABBB, AABB, AABBB 및 AAABBB의 6가지로 나타났으며, 그 중 BB, ABB 및 AAABBB게놈 식물은 제주도 집단에서 처음으로 발견하여 보고되는 것이다. 게놈의 분포는 AABB가 66.2%로 가장 높게 나타났으며, ABBB게놈이 20.4%로 그 다음이었다. ABB와 AAABB게놈 식물은 한 개체씩만 발견되었다. 게놈의 조성은 조사된 13개 집단 중 세가지 유형이 혼생하는 집단이 2개, 두 가지 유형이 나타나는 집단이 BB, AABB 또는 AABBB 중 한 가지 유형의 게놈 식물이 분포하고 있었다. 게놈의 조성으로 보아 제주도의 무릇 집단은 한반도 내륙보다는 일본 집단과의 유연 관계가 더 가까운 것으로 생각된다. B염색체의 수는 1-4개로 나타났으며, 모두 등완염색체(F)였다. B염색체의 출현 빈도는 BB와 AABBB게놈 식물에서 각각 75%로 가장 높게 나타났으며, AABB게놈 식물에서는 48%로 나타나 한반도 내륙(44%)과 비슷한 양상을 보였다. A게놈에 비해 B게놈의 수를 많이 지닌 식물에서 B염색체의 빈도가 높게 나타나는 것이 특징으로 나타났다.

• Smart Media Journal
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• v.11 no.8
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• pp.29-36
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• 2022

Smart advertising in digital media has become an active research field in the past few decades. The purpose of the study is to investigates the interaction effects between the message expression type and brand familiarity on the effectiveness of raffle advertising. An online 2×2 between subjects experiment was constructed. The results showed the interaction effects between the message expression type and brand familiarity on advertising attitude, brand attitude, and purchase intention.

• KIPS Transactions on Software and Data Engineering
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• v.3 no.2
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• pp.65-72
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• 2014

Change coupling is a measure to show how strongly change-related two entities are. When two source files have been frequently changed together, they are regarded as change-coupled files and they will probably be changed together in the near future. In the previous studies, the change coupling between two files is defined with the number of common changed time, that is, common commit time of the files. However, the frequency-based technique has limitations because of 'tangled changes', which frequently happens in the development environments with version control systems. The tangled change means that several code hunks have been changed at the same time, though they have no relation with each other. In this paper, the change types of the code hunks are also used to define change coupling, in addition to the common commit time of target files. First, the frequency vector based on change types are defined with the extracted change types, and then, the similarity of change patterns are calculated using the cosine similarity measure. We conducted experiments on open source project Eclipse JDT and CDT for case studies. The result shows that the applicability of the proposed method, compared to the previous studies.

• 한국도로학회:학술대회논문집
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• 2010.03a
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• pp.167-177
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• 2010

• Proceedings of the Korean Institute of Landscape Architecture Conference
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• 2014.10a
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• pp.83-84
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• 2014

• 한국지구과학회:학술대회논문집
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• 2003.09a
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• pp.101-101
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• 2003

• 한국도로학회:학술대회논문집
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• 2008.03a
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• pp.89-96
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• 2008

• 한국도로학회:학술대회논문집
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• 2011.03a
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• pp.97-104
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• 2011