• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.11 no.4
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• pp.113-118
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• 2011

Sequence homology analysis in the substances in the phenomenon of life is to create database by sorting and indexing and to demonstrate the usefulness of informatics. In this paper, Markov models are used in GenScan program to convert the pattern of complex eukaryotic protein sequences. It becomes impossible to navigate the minimum distance, complexity increases exponentially as the exact calculation. It is used scorecard in amino acid substitutions between similar amino acid substitutions to have a differential effect score, and is applied the Markov models sophisticated concealment of the transition probability model. As providing superior method to translate sequences homologous sequences in analysis using blast p, Markov models. is secreted protein structure of sequence translations.

• The Journal of Korean Association of Computer Education
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• v.9 no.2
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• pp.69-78
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• 2006

Educational evaluation is not the work to rank learners hierarchically, but the thing to increase the educational effectiveness by solving a learner's problem and improving the education process from the proper evaluation. The conventional evaluation systems have measured a learner's recognition level by dichotomy. Although they support the evaluation depending on a learner's academic ability and supply the feedback for wrong selection, it is insufficient to take out study-motive and give the establishment for a guidance point of learning. In this paper, we propose the web-based individual adaptive testing system in considering partial score for a learner. Our system are effective to estimate the ability of learner by considering partial score in detail and offer an feedback study from the self-diagnosis function for a learning results.

• Proceedings of the Korean Information Science Society Conference
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• 2005.07b
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• pp.463-465
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• 2005

문서분류 시 문서의 내용을 표현하기 위한 자질로서 사용되는 단어의 출현빈도정보는 해당 문서의 주제어를 표현하기에 취약한 점을 갖고 있다. 즉, 키워드가 문장에서 어떠한 목적(의미)으로 사용되었는지에 대한 정보를 표현할 수가 없고, 문장 간의 응집도가 강한 문장에서 추출되었는지 아닌지에 대한 정보를 표현할 수가 없다. 따라서, 이 정보로부터 문서분류를 하는 것은 그 정확도에 있어서 한계를 갖게 된다. 본 논문에서는 이러한 문서표현의 문제를 해결하기위해, 키워드를 선택할 때, 자질로서 문장의 역할(주어)정보를 추출하여 가중치 부여방식을 통하여 주어주도정보량을 추출하였다. 또한, 자질로서 문장 내 키워드들의 동시출현빈도 정보를 추출하여 문장 간 키워드들의 연관성정도를 시소러스에 담아내었다. 그리고, 이로부터 응집도 정보를 추출하였다. 이 두 정보의 통합으로부터 문서 주제어를 결정함으로서, 문서분류를 위한 주제어 추출 시 불필요한 키워드의 삽입을 줄이고, 동시 출현하는 키워드들에 대한 선택 기준을 제공하고자 하였다. 실험을 통해 한번 출현한 키워드라도, 문장을 주도하는 주어로서 사용될 경우와 응집도 가중치가 높을 경우에 주제어로서의 선택될 가능성이 향상되고, 문서분류를 위해 좀 더 세분화된 키워드 점수화가 가능함을 확인하였다. 따라서, 선택된 주제어가 문서분류의 정확도에 있어서 향상을 가져올 수 있을 것으로 기대한다.

• Proceedings of the Korea Water Resources Association Conference
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• 2019.05a
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• pp.357-357
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• 2019

최근 한반도에서 예측하기 어려운 지진현상 및 가뭄, 폭우 등 이상기후현상이 지속적으로 발생하고 있다. 댐과 같은 수공구조물의 치수능력부족은 구조물의 파손이나 붕괴로 직결되며, 대규모 재산피해와 인명피해를 야기한다. 이에 댐의 안전성 위험요인들로부터 구조적 안전성을 평가하기 위한 방법에 대한 관심이 높아지고 있다. 비상방류시설은 여수로와 함께 저수지의 저류수를 안전하게 배제시킬 수 있는 구조물로서, 댐 비상상황 발생 시 가능한 빠른 시간 내 댐 수위를 낮춰 댐 손상을 최소화 시킨다. 이러한 점에서 비상방류시설의 적정성 평가하기 위한 방법의 도입이 필요할 것으로 판단되며, 본 연구에서는 비상방류시설의 수위강하율을 산정하여 댐 축조재에 따른 적합성을 평가하는 방법을 제시하였다. 필댐의 경우 5가지, 콘크리트, 석괴댐의 경우 3가지 사항에 대한 수위강하율의 적합성을 고려하였으며, 각각의 고려사항에 대한 결과의 점수화를 통해 비상방류시설의 적정성을 평가하였다. 최종적으로 경과연수가 50년 이상된 필댐을 선정하여 비상방류시설 수위강하율의 고려사항에 대한 적합성 평가를 수행하였다. 본 연구방법은 댐의 안정성 개선을 위한 노후화된 댐의 현황 파악 및 비상방류시설의 적정 운영방안을 수립하는데 있어 보다 합리적인 기준을 제시할 수 있을 것으로 판단된다.

• Proceedings of the Korea Information Processing Society Conference
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• 2011.11a
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• pp.1191-1194
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• 2011

스타의 대중에 대한 인기가 브랜드의 이미지 제고와 상업적 영향을 끄는 마케팅 전략을 스타 마케팅이라고 한다. 오늘날의 스타는 방송, 연예활동뿐만 아니라 스포츠, 정치활동, 사회기여활동 등 다양한 분야에서 활약하며 스타의 이미지는 그 활약상에 영향을 받는다. 스타의 이미지는 브랜드 및 기업의 이미지로 직결되므로 그에 대한 사전분석은 마케팅에서 중요한 요소이다. 그래서 일반적으로 스타들이 활약하는 도메인을 분류하여서 그 스타에 대해서 검색을 하였을 때 어떤 분야에서 활약하고 기여를 하는지 그 기여도를 도메인에 따라 랭킹을 매기는 방법을 제안한다. 뉴스기사에서 텍스트 마이닝 기술을 이용하여 스타의 이름과 활동 도메인들에 대해서 관련단어를 빈도에 따라 추출한다. 그리고 관련된 단어들을 이용하여 스타에 대한 뉴스 중 각 도메인과 관련된 기사들을 카운트하며 도메인에 대해서 긍정 혹은 부정적인 보도내용일 경우에는 극성을 부여하여 그 가중치를 달리한다. 빈도 및 극성을 고려한 점수화에 의해 스타가 기여하는 분야에 대한 순위를 매긴다.

• Journal of the Korea Institute of Building Construction
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• v.23 no.6
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• pp.851-862
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• 2023

This study introduces an objective and systematic framework for prioritizing buildings in the Gamyoung restoration project using a decision-support model. This model integrates evaluation criteria derived from a comprehensive literature review, refined through the Delphi method, and weights assigned via an Analytic Hierarchy Process(AHP) survey. Each building project is scored against these criteria to ascertain its priority for restoration, thereby facilitating informed decision-making for budget allocation in restoration projects. The effectiveness of the decision-support model was validated through a case study and expert consultations, demonstrating its practical utility in formulating concrete restoration project plans.

• Journal of dental hygiene science
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• v.9 no.3
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• pp.295-302
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• 2009

The purpose of this study is to provide fundamental data for managing occupational stress and promoting health by investigating the factors of dental hygienists' occupational stress and the relationship among occupational stress, health status and somatization. The subjects in this study are 28 dental hygienists who have worked at dental clinic in the metropolitan area. The findings of this study are as follows: 1. The average age of the subjects is 25.1 and the average working career is 42.8 months. 8-9 hours is the most frequent average working time as 55.5% and a 6-day workweek appears most frequently with 33.8%. 2. The total average of occupational stress is 45.24 points and out of the seven sub-factors, job demand is the highest as 56.17 points. 3. A group of working at dental university hospitals scores significantly high and a group of working over 10 hours per day scores significantly low in health status (p<0.05). 4. A group of a 5-day workweek. night and holiday duty scores 18.64 which is significantly high in somatization(p<0.05). 5. Occupational stress have slightly negative correlation (-.341, p<0.01) with health status and slightly positive correlation (.330, p<0.01) with somatization. There is a strong, negative correlation between health status and somatization(-.762, p<0.01 ). 6. Health status and somatization have a slightly positive correlation with every other sub-factor of occupational stress except job self-control.

• Radiation Oncology Journal
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• v.14 no.4
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• pp.281-290
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• 1996

Purpose : Chest irradiation leads to a significant cardiac injury in a number of patients. To prevent, or to reduce the risk of radiation-induced cardiac injury, pentoxifylline(PTX), a haemorrheologic agent that improves the blood flow through small blood capillaries has been employed. Materials and Methods : One hundred and eighty ICR mice were divided into three study groups: control, radiation alone, and radiation-pentoxifylline. Each group was subdivided into 12 subgroups: 1 3, 6 and 10 days and 2, 3, 4, 6, 8, 12, 16 and 20 weeks by observation Period after irradiation. The total 15Gy of radiation was delivered in a single fraction through anterior mediastinal port. Pentoxifylline was injected subcutaneously daily 50mg/kg to the back of the mice from the first day of irradiation throughout the observation period. The mice of each group after a certain observation period were sacrificed and sectioned for histopathologic examination of the heart. Result : The findings of acute radiation-induced carditis i.e., heterophilic infiltration and vacuolization and ballooning of endothelial cells were observed upto 6 weeks and reduced sharply afterwards. The late radiation effects including pericarditis with mononuclear cell infiltration, pericardial fibrosis, endothelial cell changes, myocardial degeneration and fibrosis present from 4 weeks onwards after irradiation but with various degree of severity. The overall process of pathologic changes of radiation-pentoxifylline group was similar to those of radiation alone group but the duration of acute stage was relatively short and the severity of late cardiac toxicity was much lesser compared with those of radiation alone group. Conclusion : Pentoxifylline can effectively reduce the late radiation-induced cardiac injury and reslve the acute effects relatively rapidly.

• Journal of the Korea Convergence Society
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• v.11 no.8
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• pp.173-182
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• 2020

The government continuously improves the RPS system to expand the supply of renewable energy, but there has been criticism that more environmental aspects should be considered to reduce GHG emission. REC weights are differentiated according to renewable energy sources. Greenhouse gas emission is one of the decisive factors, and its value is set by experts' opinion. This study assigns LCA to get accurate value of GHG emission. The LCA calculates emitted greenhouse gases from entire process of fuel production, transportation, power plant construction, operation, and decommission. This study suggests a method to change the greenhouse gas reduction effect from the existing qualitative method to the quantitative method and evaluates them. As a result, the evaluation score is changed, but the tier interval is so large that it does not affect the REC weight. Therefore, this study suggests the way that directly reflect the greenhouse gas reduction effect in the REC weight.

• Journal of the Korean School Mathematics Society
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• v.15 no.3
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• pp.511-533
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• 2012

In order to determine whether there is a significant correlation between relational understanding and creative math. problem finding ability, this study performed relational understanding and problem finding ability tests on a sample of 186 8th grade middle school students. According to the study results, we found a very significant positive correlation between relational understanding and the creativity of the mathematising ability and the combining ability of mathematical concepts in the problem finding ability. Although there was no statistically significant correlation between relational understanding and the extension ability of mathematical facts, the results from analyzing the students response rate and actual scores in each test showed that students with high relational understanding scores also had high response rate and high scores in analogical reasoning and inductive reasoning. Through this study, therefore, relational understanding is found to have a positive impact on the creative mathematics problem finding ability.