• Journal of the Computational Structural Engineering Institute of Korea
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• v.27 no.2
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• pp.121-128
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• 2014

In this study, The purpose of this study is to experimentally investigate the shear behavior of reinforced flat plate embedded with GFRP(glass fiber reinforced polymer) plate with openings. The GFRP shear reinforcement is manufactured into a plate shape with several openings to ensure perfect integration with concrete. The test was performed on 7 specimens. the parameters include the type of reinforcement and amount of the shear reinforcement., From the test, we analysed the crack, failure mode, Strain, load-displacement graph. a calculation of the shear strength of reinforced flat plate with GFRP plate based on the ACI 318-11 was compared with the test results. The results of the experiment indicate that GFRP plate is successfully applied as a shear reinforcement in the flat plate under punching shear.

• Management & Information Systems Review
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• v.32 no.3
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• pp.263-283
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• 2013

Recently, social enterprises in the korean are gaining more interest but, it seems that many social enterprises are not successful in their sustainability. Therefore government implements various supporting policies for social enterprise. The purpose of this paper is to find new criteria of business development expense through the analysis of submitted application of business development expense. For this study, business development expense data of 126 social enterprises(applied to the Busan in 2013 year) for supporting money are analyzed. The result shows that (1) need to apply 1 or 2 business that is the most important in their business (2) concerns about the patent, engineering development, prototype model development, program development taken IT business are very desirable (3) need to feedback about last year result (4) need to make more elaborate guideline for application (5) none of social enterprise applied co-marketing (brand), therefore a strong inducement plan is need In conclusion, effective and strategic policy of business development expense will be a helpful for the sustainability of social enterprises. In this sense, the results of this study is meaningful to the social enterprise policy, especially business development expense, maker.

• Journal of Digital Contents Society
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• v.14 no.2
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• pp.275-282
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• 2013

In medical image processing field, object recognition is usually carried out by computerized processing of various input information such as brightness, shape, and pattern. If the information mentioned does not make sense, however, many limitations could occur with object recognition during computer processing. Therefore, this paper suggests effective object recognition method based on the magnetic resonance (MR) theory to resolve the basic limitations in computer processing. We propose the efficient method of robust gray-white matter segmentation by texture analysis through the Susceptibility Weighted Imaging (SWI) for contrast enhancement. As a result, an average area difference of 5.2%, which was higher than the accuracy of conventional region segmentation algorithm, was obtained.

• Journal of Digital Contents Society
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• v.18 no.5
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• pp.911-921
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• 2017

The purpose of this study was to investigate the semantic network analysis to understand image contents and to examine the degree to which words, word clusters contributed to the formation of semantic map within image contents. For this research, from 1993 until 2016 the field of the image contents were collected for a total of 2,624 cases papers. The word appeared in Title analyzed the social network by using the R program of Big Data. The results were as follows: First, Research on 'education' in the field of image contents has decreased. Second, the role of 'media' in the field of image contents is changing. Finally, It is a change in the status of 'contents' in the field of image contents.

• Journal of Digital Convergence
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• v.11 no.11
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• pp.335-342
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• 2013

In this study, reliability software cost model considering logarithmic fault detection rate based on observations from the process of software product testing was studied. Adding new fault probability using the Goel-Okumoto model that is widely used in the field of reliability problems presented. When correcting or modifying the software, finite failure non-homogeneous Poisson process model. For analysis of software cost model considering the time-dependent fault detection rate, the parameters estimation using maximum likelihood estimation of inter-failure time data was made. In this research, Software developers to identify the best time to release some extent be able to help is considered.

• Journal of Haehwa Medicine
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• v.12 no.1
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• pp.139-146
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• 2003

Clinical studies were carried out 25 cases through administration of Chongmyungtang added Grape Juice(CMT+GJ) from December 1st 2002 to December 31th 2002. The results were summarized as follows; 1. There were significant decreases in physical symptoms of fatigue from $4.64{\pm}2.71$ to $2.52{\pm}1.78$ by administration of CMT+GJ. 2. There were significant decreases in mental symptoms of fatigue from $5.44{\pm}2.38$ to $3.88{\pm}2.03$ by administration of CMT+GJ. 3. There were significant decreases in neuro-sensory symptoms of fatigue from $3.84{\pm}2.03$ to $2.88{\pm}2.07$ by administration of CMT+GJ. 4. There were significant decreases in total subjective symptoms of fatigue from $13.92{\pm}5.42$ to $9.28{\pm}4.21$ by administration of CMT+GJ. 5. There were not significant changes in VAS of fatigue and attention ratio by administration of CMT+GJ. According to the results, we could suggest that CMT+GJ is able to be applied to the development of concentration.

• Korean journal of applied entomology
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• v.15 no.2 s.27
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• pp.89-93
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• 1976

The present report is dealt with the spiders which are caught within a space of $1m^2$ of rice paddy field where was harvested the rice crops in Jeonbug district, from November 4 to 11, to 1975. 1. Twenty-one species of spiders were caught at the area during the period. Of these the dominant species were Gnathonarium dentatum, Pirate subpiraticus, Gnathonarium gibberum, Oedothorax insecticeps etc. 2. Average density of spiders within a space of $1m^2$ of rice paddy field where rice crops was harvested was as follows: 125 at Iri, 102 at Jinan, 133 at Buan, and 58 at Daejang. 3. The scientific names of spiders which were caught in rice paddy field for the first time in Korea were Gnathonarium gibberum, Enoplognatha japonica, Erigone prominens, Erigonidium graminicola, Theridion octomaculatum, Lycosa pseudoannulata, Dolomedes angustivirgatus. As the result of this survey, fifty-five species of spiders were recorded in rice paddy field of Korea.

• Proceedings of the ESK Conference
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• 1993.10a
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• pp.89-99
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• 1993

원자력발전소 고장 및 불시정지 사례의 상당수가 시스템과 연계되어 인간에 의해 수행되는 운전, 유지보수, 관리와 관련된 인적오류에 기인하는 것으로 알려져 있다. 이러한 인적오류는 원자력발전소의 안전성과 효율성의 유지에 중요한 변수로 작용하며 불시정지에 의한 경제적 손실과 사회적 충격을 초래 하게 된다. 특히, 국내 원자력발전소가 외국설계라는 점과 인적요인에 대한 체계적인 평가가 이루어 지 지 않은 상태에서 운영중인 것을 감안하면, 인적요인의 국가별 차이에서 발생가능한 인적오류 유발요인 이 상존하고 있다고 할 수 있다. 이러한 인적오류의 중요성에 비해 국내 원자력 발전소의 인적오류에 대 한 연구는 지금까지 활발히 이루어지지 않고 있다. 본 연구에서는, 국내 원자력발전소에서 발생하는 인적 오류의 분석과 그 분석결과를 응용하기 위한 기술개발의 첫단계로, 기존 국외의 인적오류연구방법론 비교 분석, 국내 원전의 인적오류 발생현황 및 관련보고체계 분석, 등을 수행하여 국내 원자력발전소의 인적오류 분석 및 응용기술개발을 위한 연구개발 방향을 정립하였다. 기존 국외의 인적오류연구방법론 비교분석에서는, 인적오류에 대한 연구를 그 접근 방식에 따라 관리적 접근방식, 정량적 접근방식, 정성적 접근방식의 세가지로 분류하여, 각 접근방식에 대한 분석대상, 분석방식, 수행목적 등, 각 접근방식의 특징과 이에따른 실효성을 분석하였다. 그리고, 국내 원전의 인적오류 발생현황 및 관련보고체계분석에서는, 국내 원자력발전소에서 발생한 고장/정지 사건이 내포하고 있는 인적오류의 주요 형태를 파악하였으며, 또한, 인적오류연구 수행에 필수적인 인적오류사례원으로서 국내 원전에서의 인적오류 관련 보고체계에 대한 운용현황을 파악하고 그 유용성을 조사하였다. 이러한 연구를 통하여, 국내에 적용가능한 인적오류 분석기술개발 추진을 위한 제약 조건과 이러한 제약조건을 극복하고 인적오류 분석기술 수준을 향상시키기 위한 필요충분조건을 파악하였으며, 이 필요충분조건을 고려하여 인적오류 분석기법개발, 인적 오류 사례전파 및 자료관리 기술개발, 인적오류 사례수집 기술개발, 등을 주요 골자로 하는 인적오류 분석기술개발의 기본 방향을 설정하였다. 이와 아울러, 오류사례의 수집, 상세분석, 자료의 저장 및 응용을 위한 hardware 및 software 환경을 체계화하였다.

• Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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• 2008.06a
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• pp.209-216
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• 2008

최근 정보통신의 발달로 도시 지하시설물 지능화를 위한 다양한 기술들이 제공되어 '유비쿼터스 국토' 실현에 대한 요구가 지속적으로 높아질 전망이다. 다양한 기관에서 지능화된 시설물 관리에 대한 요구가 발생하고 있으며 각 지방자치단체들은 U-City 사업을 통하여 센서를 활용한 시설물 관리를 시도하고 있다. 하지만 사업의 대부분이 지상 시설에 대한 분야로 한정되어, 지상시설의 센서네트워크 기술은 다양한 응용분야로 발전하고 있으나 지하 환경의 시설물 관리를 위한 센서네트워크 기술은 아직 활용이 미흡하다. 본 연구는 지능형 상하수도 관리를 위한 유비쿼터스센서 설치방안 마련을 위한 연구방법론 수립을 제안한다. 이를 위해 첫째, 지능화(또는 유비쿼터스화)의 개념, 둘째, 상하수도 시설물 지능화의 필요성, 셋째, 시설물 지능화를 위한 센서설치의 역할 및 중요성, 넷째, u-City 구현을 위한 3대 영역(즉, 물리영역, 비물리영역, 정보통신영역)의 융합개념을 적용한 지능형 상하수도의 개념정립, 다섯째, 이상의 기반을 바탕으로 상하수도 지능화를 위한 센서설치 연구방법론을 제안한다. 이를 통해 물리영역(즉, 물리적 제한요소들), 비물리영역(실수요기반 시설물 지능화의 필요성) 그리고 정보통신영역(즉, 정보통신 관련 핵심기술 및 보조기술)의 상호융합에 의한 지능형 상하수도 관리를 위한 센서설치방안 마련이 가능할 것으로 판단된다.

• Biomedical Science Letters
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• v.26 no.2
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• pp.114-119
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• 2020

Of the various types of mice used for genome editing, conditional knock-out (cKO) mice serve as an important model for studying the function of genes. cKO mice can be produced using loxP knock-in (KI) mice in which loxP sequences (34 bp) are inserted on both sides of a specific region in the target gene. These mice can be used as KO mice that do not express a gene at a desired time or under a desired condition by cross-breeding with various Cre Tg mice. Genome editing has been recently made easy by the use of third-generation gene scissors, the CRISPR-Cas9 system. However, very few laboratories can produce mice for genome editing. Here we present a more efficient method for producing loxP KI mice. This method involves the use of an HDR vector as the target vector and ssODN as the donor DNA in order to induce homologous recombination for producing loxP KI mice. On injecting 20 ng/µL of ssODN, it was observed that the target exon was deleted or loxP was inserted on only one side. However, on injecting 10 ng/µL of the target HDR vector, the insertion of loxP was observed on both sides of the target region. In the first PCR, seven mice were identified to be loxP KI mice. The accuracy of their gene sequences was confirmed through Sanger sequencing. It is expected that the loxP KI mice produced in this study will serve as an important tool for identifying the function of the target gene.