• Journal of the Korea Institute of Information and Communication Engineering
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• v.14 no.9
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• pp.2057-2064
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• 2010

With the development of wireless network technology, the location information of a spatiotemporal object which changes their location is used in various application. Each spatiotemporal object has many location information, hence it is inefficient to search all trajectory information of spatiotemporal objects for a range query. In this paper, we propose an efficient method which divides a trajectory and stores its division data on restricted storage space. Using suboptimal split algorithm, an extended split algorithm that minimizes the volume of EMBRs(Extended Minimum Bounding Box) is designed and simulated. Our experimental evaluation confirms the effectiveness and efficiency of our proposed splitting policy

• Journal of Korean Society of Archives and Records Management
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• v.15 no.4
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• pp.25-48
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• 2015

The Presidential Archive of Korea provides archival information services in various forms. This study evaluated web-archival information services provided in The Presidential Archive of Korea using DigQUAL. To perform the study, this study conducted a descriptive statistic and confidence tests. The evaluation method was accomplished user survey. And the evaluation territory was classified with archives and information search, archives use service, expansion service. As a result, a general satisfaction was low, and this study suggested improvement method for web archival service in the Presidential Archive of Korea.

• Journal of the Korea Furniture Society
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• v.18 no.3
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• pp.211-223
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• 2007

21 Century is said the age of cultural industry. In this cultural Industry one of very important factors which guides this times is the exploitation of cultural goods, which is based on regional identity. Therefore, at this point of time when its weighty has been raised, the aim of this study is to fill the image Korean tradition and modernity culture in them, through the search on their characteristics among regions and nations, desk the cultural service goods which gets survival power of traditional and cultural identity. Nine existing Hahoe masks are changed into nine new cultural items, which are presented the nine dreams of Hahoe masks. As consumer's choice is diversified by a set of products, main concept in this study is the focus on modernity, rationality, traditionality and popularity. The main concept of this study is on rational functions and convenience, the harmony of tradition and modernity. As said above, in the process of manufacture the mass production of goods is stressed, and by getting the composition and making a set of goods, the choice of consumers will be extended. Getting ideal globalization by the coexistence of tradition and modernity on goods, is very important. Consequently, cultural goods must be recognized as a factor of its medium, and also, on domestic cultural goods people's interest must be risen all the more.

• Journal of Biomedical Engineering Research
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• v.41 no.2
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• pp.101-106
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• 2020

Although benign gastric ulcers do not develop into gastric cancer, they are similar to early gastric cancer and difficult to distinguish. This may lead to misconsider early gastric cancer as gastric ulcer while diagnosing. Since gastric cancer does not have any special symptoms until discovered, it is important to detect gastric ulcers by early gastroscopy to prevent the gastric cancer. Therefore, we developed a Convolution Neural Network (CNN) model that can be helpful for endoscopy. 3,015 images of gastroscopy of patients undergoing endoscopy at Gachon University Gil Hospital were used in this study. Using ResNet-50, three models were developed to classify normal and gastric ulcers, normal and gastric cancer, and gastric ulcer and gastric cancer. We applied the data augmentation technique to increase the number of training data and examined the effect on accuracy by varying the multiples. The accuracy of each model with the highest performance are as follows. The accuracy of normal and gastric ulcer classification model was 95.11% when the data were increased 15 times, the accuracy of normal and gastric cancer classification model was 98.28% when 15 times increased likewise, and 5 times increased data in gastric ulcer and gastric cancer classification model yielded 87.89%. We will collect additional specific shape of gastric ulcer and cancer data and will apply various image processing techniques for visual enhancement. Models that classify normal and lesion, which showed relatively high accuracy, will be re-learned through optimal parameter search.

• The Journal of Internal Korean Medicine
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• v.39 no.3
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• pp.323-337
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• 2018

Objective: The purpose of this research is to investigate Chinese clinical studies of the treatment of hiccup after stroke with herbal medicine. Methods: We used the China National Knowledge Infrastructure (CNKI) database to search for clinical studies about using herbal medicine to treat hiccup after stroke. Results: Nineteen clinical articles Until August 31, 2017 were analyzed. The most commonly used herbal prescription was Xuanfudaizhe-tang (旋覆代?湯). According to analysis, the most commonly used medical herbs were Haematitum (代?石), Inulae Flos (旋覆花), and Pinelliae Tuber (半夏). Clinical symptoms, total incidence rate of adverse reaction, recurrence rate, symptom improvement time, patient satisfaction comparison, and dietary status improvement were used to evaluate the treatments. The effective rate of the treatment group was 86.0-97.8%, significantly higher than control group in all papers. Side effects occurred much less frequently in the treatment group than in the western medicine control group. Conclusion: The treatment of hiccup after stroke with herbal medicine was shown to be highly effective in 19 studies. Additional well-designed clinical trials are needed; this study can be used as a basis for further research regarding the treatment of hiccup after stroke.

• The Transactions of the Korea Information Processing Society
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• v.3 no.5
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• pp.1059-1069
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• 1996

The purpose of this paper is to examine some effects of four menu types: icon menu, context menu, pulldown menu, and bar selection menu. In order to find whether there are some effects of menu types or learning stages (the first, intermediate and the last stage) on skill-based errors, each of the menus has been studied in relation to hyperemia instruction, menu search time, scholastic a chievements and learners' metacognitionon their errors. A further purpose of this paper is to suggest some strategies for enabling learner to select menus more efficiently in order to enhance the learner's own learning effectiveness in hypere mia instruction.The results of this study are as follows. The menu types had a significant effect on the low metacognition regulation group. The context menu types had a significant effect on achievements. In contrast, it was also noticed he the menu types did not have any significant effect on the high metacognition regulation group. The bar-selection menu type and the icon menu type had a relatively significant effect on skill-based errors in the first stage of learning.