• Journal of the Korean Society of Radiology
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• v.5 no.6
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• pp.315-324
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• 2011

The purpose of this study was to use as basic data for the is systematic and efficient facility inventory of policeman and the riot police, conscripted policeman. First, the analysis was performed for the patient implementing the simple x-ray, CT, and MRI examination to the policeman and the riot police, conscripted policeman within the radiologic examination. As to the classification by disease, it classified into the partial body as the common disease and musculoskeletal system disease. As to the fixed quantity comparison of the policeman and the riot police, conscripted policeman the basic X-ray, CT, MRI examination by part average personnel was compared. As to the research result the riot police, conscripted policeman, the Lower extremity examination occupies the simple X-ray, CT, and MRI examination in comparison with the other part altogether much and particularly, the Knee examination ratio occupies much among the Lower extremity examination.

• Journal of the Korean Association of Geographic Information Studies
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• v.21 no.1
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• pp.12-22
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• 2018

In order to improve the vulnerability of current cities due to climate change, the disaster vulnerability analysis manual for various disasters is provided. Depending on the spatial units, the disaster vulnerability levels, and the conditions of the climatic factors, the results of the disaster vulnerability analysis will have a significant impact. In this study, relative assessments are conducted by adding the eup, myeon and dong unit in addition to census output area unit to analyze the impact on the spatial unit, and relative changes are analyzed according to the classification stages by expanding the natural classification, which is standardized at level four stage, to level two, four and six stage. The maximum rainfalls(10min, 60min, 24hr) are added for the two limited rainfall characteristics to determine the relativity of disaster vulnerable districts by index. The relative assessment results of heavy rainfall vulnerability index showed that the area ratio of disaster areas by spatial unit was different and the correlation analysis showed that the space analysis between the eup, myeon and dong unit in addition to census output area unit was not consistent. And it can be seen that the proportion of disaster vulnerable districts is relatively different a lot due to indexes of rainfall characteristics, spatial unit analysis and disaster vulnerability level stage. Based on the above results, it can be seen that the ratios of disaster vulnerable districts differ relatively significantly due to the level of the disaster vulnerability class, and the indexes of rainfall characteristics. This suggests that the impact of the disaster vulnerable districts depending on indexes is relatively large, and more detailed indexes should be selected when setting up the disaster vulnerabilities analysis index.

• Journal of Sensor Science and Technology
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• v.12 no.3
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• pp.128-138
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• 2003

In this paper, we proposed the algorithm for locating destination address block (DAB) from automatic system to classify packages. For locating DAB, because the size of obtained images is are very large, we select the region of interesting (ROI) to reduce time carrying into algorithm. After selecting the ROI, proposed algorithm is carried out within the ROI. We extract the outline of the handwriting part of the DAB and the rest components within the obtained ROI using thresholding. We carry out labeling to extract each connected component for extracted outline and the rest components. We extract the outline of the handwriting part of the DAB using the geometrical characteristic of the outline of the handwriting part of the DAB among many connected components. The last, we extract the locating DAB using the outline of the handwriting part of the DAB.

• Journal of KIISE:Software and Applications
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• v.33 no.8
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• pp.718-729
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• 2006

There has been increasing interest in automatic term recognition (ATR), which recognizes technical terms for given domain specific texts. ATR is composed of 'term extraction', which extracts candidates of technical terms and 'term selection' which decides whether terms in a term list derived from 'term extraction' are technical terms or not. 'term selection' is a process to rank a term list depending on features of technical term and to find the boundary between technical term and general term. The previous works just use statistical features of terms for 'term selection'. However, there are limitations on effectively selecting technical terms among a term list using the statistical feature. The objective of this paper is to find effective features for 'term selection' by considering various aspects of technical terms. In order to solve the ranking problem, we derive various features of technical terms and combine the features using machine-learning algorithms. For solving the boundary finding problem, we define it as a binary classification problem which classifies a term in a term list into technical term and general term. Experiments show that our method records 78-86% precision and 87%-90% recall in boundary finding, and 89%-92% 11-point precision in ranking. Moreover, our method shows higher performance than the previous work's about 26% in maximum.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.5
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• pp.3567-3572
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• 2015

More than 100 years of railway history in Korea, many of disused stations and railroads are happening. Many of disused stations are designated as registered cultural properties because of their historical value, and should be utilized considering their historical meaning. The purpose of this study is to analyse the status and utilization of disused station designated as registered cultural properties, research the domestic and foreign cases of successful reutilization, and provide basic materials for desirable utilization of underused space. Status and utilization of 23 stations are classified as closed-type, continued-type, changed-type, toured-type, and different alternatives are analysed from foreign cases. From case study utilization appling user and detailed utilization are classified as follows; Proprietor(Manager)'s Private Use, Proprietor(Manager)'s Public Use, Community's Public Use, Participant's Cooperative Use, and Tourist's Purposeful Use. The successful utilization of small disused station will be carried out with respect for disused station as cultural heritage, using place of coexistence and symbiosis for community, and effort to make spontaneous growth by participation of various users.

• FLOWER RESEARCH JOURNAL
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• v.18 no.1
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• pp.62-65
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• 2010

This study was carried out to estimate the size and exine pattern of pollen grains in seven species of the genus Lilium by using scanning electron microscope. Exine of pollen grains, which were all monad, took the prolate forms with a pollen aperture. However, there were various L/W ratio between length (L) and width (W) of pollen grains among selected Lilium species. The pollen of L. distichum was oblong shape which had the highest L/W ratio of 2.59. On the other hand, that of L. concolor var. partheneion was broadly elliptical shape close to circle which had the lowest L/W ratio of 1.82. The surface patterns of exine were reticulate in all Lilium species that have showed diverse forms in their lumina. Pollen length and width in L. lancifolium had the greatest value, 115.90 and $46.54{\mu}m$, respectively, in comparison with those of L. tsingtauense, 70.33 and $38.72{\mu}m$, respectively. Except L. distichum and L. leichtlinii var. maximowiczii which had a similar pollen length within standard errors, the others in Lilium species showed different sizes, respectively. Therefore, these results indicated that pollen length could be a better standard for the classification of Lilium species than exine surface patterns or pollen dissection area.

• Proceedings of the Korea Water Resources Association Conference
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• 2015.05a
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• pp.544-544
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• 2015

국내에는 17,500여개의 농업용 저수지가 전국적으로 분포하고 있으며, 이들 저수지는 인공호소이다. 농업용 저수지의 총 유효저수량은 2,838백만$m^3$에 달하고 있으며, 전체 수리답의 약 76%에 해당하는 593천ha의 농경지에 물을 관개하고 있다(2013농업생산기반통계연보). 최근 농어촌지역의 도농복합형태 개발 및 관광지, 유원지화로 농업용 저수지 유역의 오염원이 지속적으로 증가하는 추세에 있으며, 이로 인해 농업용수 수질이 지속적으로 악화되고 있다. 특히, 늦봄에서 초가을까지 외기온도 상승 및 저수율 저하와 함께 부영양화 증가, 녹조 대발생 등으로 수질오염도가 급상승하고 있으며, 이로 인해 호 내 물고기 폐사, 악취발생 등으로 민원이 다수 발생하고 있다. 본 연구에서는 농업용 저수지의 물리적 특성을 분석하여 농업용 저수지 수질개선을 위한 기초자료로 활용하고자 하였다. 농업용 저수지 17,489개소를 수혜면적별로 분류해 보면 5ha이하가 7,808개소(44.7%), 5~10ha이하 4,277개소(24.5%), 10~20ha 2,772개소(15.9%), 20~30ha 797개소(4.6%), 30~40ha 385개소(2.2%), 40~50ha 238개소(1.4%), 50ha이상 1,201개소(6.9%)로 구성되어 있어 50ha이하가 전체의 93.1%에 이르고 있다. 유효저수량별 분포현황은 10천$m^3$이하가 7,996개소(45.7%), 10~50천$m^3$ 6,420개소(36.7%), 50~100천$m^3$ 1,003개소(5.7%), 100~300천$m^3$ 868개소(5.0%)로 전체 시설 중 50천$m^3$이하가 전체 저수지의 82.4%로 대부분이 소규모 저수지임을 알 수 있다. 농업용 저수지를 유효수심별로 구분해보면 1m이하가 전체의 26.6%, 3m이하가 전체의 77.1%, 5m이하가 전체의 91.1%로 국내 대부분의 저수지들은 수심이 5m 이하의 저류지 형태의 저수지임을 알 수 있다. 저수지를 유역배율(유역면적/만수면적)에 따라 구분해보면 유역배율 3이하가 전체의 1.2%이고, 5이상이 전체의 97.4%를 차지하고 있다. 일반적으로 유역배율이 3이상이면 부영양화에 취약한 호소로 분류되고 있다. 국내 농업용 저수지는 대부분이 수심이 낮고, 유효저수량이 소규모이며, 유역배율이 3이상인 호소가 대부분으로 태생적으로 수질오염 및 부영양화에 취약한 구조로 되어 있음을 알 수 있다. 농업용 저수지 수질개선을 위한 종합계획 수립시에는 유입수 및 호내 대책과 함께 호소의 물리적 조건을 개선시키는 방안에 대해서도 검토가 요구된다. 특히 저수지 신규 설치시에는 수량관리 뿐만 아니라 수질도 함께 고려된 물리적 인자에 대한 설계가 이루어져야 할 것으로 판단된다.

• Economic and Environmental Geology
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• v.54 no.5
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• pp.561-572
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• 2021

Aggregate collection is taking place in many areas in Korea, resulting in large cut slopes or large amounts of cut rocks. If the development site for such aggregate collection is a stratum accompanied by sulfide minerals, Acid Rock Drainage (ARD) may occur, which may cause environmental pollution in the development site and surrounding areas. As a result of the study on forest aggregate samples, most of the samples were classified as acid-forming potential samples, and among them, some samples from Gwangju, Goyang, and Sokcho were classified as potential acid-generating samples. This can be expected to affect the quality of aggregates when a large amount of aggregate is used in the future. Therefore, it is judged that these forest aggregates need to be managed when they are used. By predicting the occurrence of ARD through the acid-generating ability test, it is expected that economic losses that may occur in the future can be reduced, and it is judged that the problem of surrounding environmental pollution can be further alleviated.

• The Journal of Bigdata
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• v.6 no.1
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• pp.37-49
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• 2021

The number of dementia patients in Korea is estimated to be over 800,000, and the severity of dementia is becoming a social problem. However, no treatment or drug has yet been developed to cure dementia worldwide. The number of dementia patients is expected to increase further due to the rapid aging of the population. Currently, early detection of dementia and delaying the course of dementia symptoms is the best alternative. This study presented a methodology for early diagnosis of dementia by measuring and analyzing amyloid plaques. This vital protein can most clearly and early diagnose dementia in the retina through AI-based image analysis. We performed binary classification and multi-classification learning based on CNN on retina data. We also developed a deep learning algorithm that can diagnose dementia early based on pre-processed retinal data. Accuracy and recall of the deep learning model were verified, and as a result of the verification, and derived results that satisfy both recall and accuracy. In the future, we plan to continue the study based on clinical data of actual dementia patients, and the results of this study are expected to solve the dementia problem.

• Korean Association of Arts Management
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• no.54
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• pp.95-132
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• 2020

Many Korean traditional music such as Jongmyo Jeryeak and Pansori are listed as UNESCO World Intangible Cultural Heritage and are recognized for their value. However, compared to other genres, Korean traditional music shows various problems such as low proportion of paying audiences and bias of audience age. Previous studies in the performing arts point out that in order to solve these problems, it is necessary to analyze consumers. Existing previous studies on the Korean traditional music performance remained mainly to grasp the influence of performance quality of service on viewing satisfaction at the one-dimensional level. However, in order to meet consumer expectations, not only the satisfaction factor but also the reasons why performing art consumers do not consume performances. In addition, it is important to identify the factors that can cause service failure before the performance, to prepare countermeasures and to manage them continuously. In this study, the Kano-Timko model was used to classify the quality factors of Korean traditional music performances, and to identify the priority points of service failures of Korean traditional music performances through the potential customer satisfaction index. Through the results of this study, Korean traditional performing organizations and organizations will be able to prepare proactive countermeasures for service failures occurring in Korean traditional music performances and establish effective operational strategies to derive customer satisfaction. In addition, it is important to apply the concept of service failure in order to classify the performance quality of service that was identified only in a one-dimensional manner based on Kano model.