• KSII Transactions on Internet and Information Systems (TIIS)
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• v.5 no.10
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• pp.1712-1732
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• 2011

Cloud provides dynamically scalable virtualized computing resources as a service over the Internet. To achieve higher resource utilization over virtualization technology, an optimized strategy that deploys virtual machines on physical machines is needed. That is, the total number of active physical host nodes should be dynamically changed to correspond to their resource usage rate, thereby maintaining optimum utilization of physical machines. In this paper, we propose a pattern-based prediction model for resource provisioning which facilitates best possible resource preparation by analyzing the resource utilization and deriving resource usage patterns. The focus of our work is on predicting future resource requests by optimized dynamic resource management strategy that is applied to a virtualized data center in a Cloud computing environment. To this end, we build a prediction model that is based on user request patterns and make a prediction of system behavior for the near future. As a result, this model can save time for predicting the needed resource amount and reduce the possibility of resource overuse. In addition, we studied the performance of our proposed model comparing with conventional resource provisioning models under various Cloud execution conditions. The experimental results showed that our pattern-based prediction model gives significant benefits over conventional models.

• The Korean Journal of Health Service Management
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• v.9 no.4
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• pp.91-103
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• 2015

Objectives : The purpose of this study was to examine the effects of sociodemographic characteristics on usage patterns of oral hygiene supplies of patients visiting a dental clinic. Methods : A questionnaire survey was administered to 592 patients visiting a dental clinic based in Daegu from December 2, 2013 through December 31, 2013. Statistical analysis was done with IBM SPSS Statistics 20.0. Results : For awareness of oral toothbrushes, electric toothbrushs had the highest ratio(67.6%), and for awareness of auxiliary oral hygiene devices, dental floss had the highest ratio (77.7%). For toothbrushes used, interdental brushes had the highest user ratio(34.3%), and for using auxiliary oral hygiene devices, dental floss had the highest ratio(37.7%). Age had an influence on the awareness of oral hygiene devices. Gender and Age had influence on the use of oral hygiene devices. Of the total respondents, 34.6% citied "do not need to do that" as the reason for not using oral hygiene supplies, followed by "do not know" (34%) and "it is tiresome" (30.4%). Conclusions : To effectively improve oral health status, a good motivation method necessary to promote the use of oral hygiene supplies.

• Korean Management Science Review
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• v.33 no.1
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• pp.17-33
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• 2016

This study investigated the relationships among proper types of e-commerce, patterns of inter-organizational information flow (IIF), benefits of e-commerce, and supply-chain performance. In IIF, it was empirically observed that environmental competition positively influences the frequency of IIF, and environmental uncertainty has a positive impact on the quality of IIF. It was also empirically confirmed that only quality of IIF has effects on the usage levels of e-procurement as well as e-partnerships. Through regression analyses and cluster analysis, it was found that under high degrees of the frequency and quality of IIF, the benefits of e-commerce are vastly realized in the firms that highly utilize e-partnerships. The results of this study also showed that when the degrees of quality of IIF are high, the levels of benefits of e-commerce are increased in the firms that employ e-procurement. The moderating effects of buyer and supplier firms' abilities on the relationships between patterns of IIF and usage levels in various types of e-commerce were empirically examined. According to the results, the moderating roles of buyer firms' capabilities and suppliers' abilities were partially demonstrated. Finally, it was found that the realization of benefits of e-commerce can lead to the improvement of supply-chain performance.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.25 no.4
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• pp.187-207
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• 2014

Public library user studies are required for better services and circulation records can be used as specific library data to identify common user patterns of the libraries. This study examined 754,198 of circulation data set - number of users, frequencies of circulation, volume of time of circulation and etc. The results of this study indicate the possibility of using circulation data to analyze the usage patterns in public libraries and to provide major types of users, collections, time of circulation, and common library user behaviors for better public library services.

• Journal of the Korean Solar Energy Society
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• v.37 no.5
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• pp.39-47
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• 2017

In a hot water system using solar energy, solar heat is not simply collected by the heat collecting plate, but by heat exchange between the solar collector (flat or vacuum type) and the hot water storage tank. Therefore, the amount of collected solar energy depends on the hot water usage patterns that determine the temperature of the thermal storage tank. Also, if the temperature of the hot water stored in the storage tank exceeds the dangerous temperature during the summer, the heat must be released for safety. If the temperature of the hot water in the storage tank is low, it is necessary to heat by the auxiliary heat source. In this study, three buildings are defined as hotel, swimming pool, and school facilities. And we calculated the released heat energy, auxiliary heat source, and pure storage heat energy based on different hot water usage patterns and installation angle of the solar collectors.

• Cross-Cultural Studies
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• v.31
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• pp.309-330
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• 2013

This paper aims to examine distribution and patterns of Women(我們) on Chinese conversation textbook, and also suggest that Chinese class need to impose pragmatic perspective. For this purpose, this paper explores 35 Womens in 42 conversation units on three Chinese textbooks Hanyu Kouyu vol.1~3 at first. Women is more contributed on 'exclusive Women' among three categories (inclusive, exclusive, borrowed) than other two categories, is also contributed on 'symbolic usage' than 'gestural usage'. Second, this paper examines patterns of Women on the three categories. It shows: first, 'inclusive Women', 'exclusive Women', 'borrowed Women' all show up on the textbooks even though on the textbook vol.1(for beginner) surprisingly; Second, 'exclusive Women' may be a primary one of three categories in terms of the coverage of Women. Women covers those who are related with the speaker regardless of being on the spot, and also covers those which the speaker belongs to, for example, nationality, ethnicity etc. Consequently, the results show that Chinese speaking course, from now on, needs to consider pragmatic factors including existing semantic and syntactic factors, and from the pragmatic perspective, impose 'action'(including speech act, body gesture etc.) on Chinese conversation class for the learners' improvement in Chinese speaking.

• Journal of the Korean Society of Food Culture
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• v.16 no.3
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• pp.195-202
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• 2001

This study was performed to investigate the pattern of health food usage of the adults by food lifestyles pattern in contemporary Seoul. This study views health food consumption as a cultural practice in which people produce (and reproduce) diverse social relationships and cultural meanings. It also identifies food lifestyles and health food usage pattern of Korean adult in Seoul. This topics were discussed based on field research data collected by nutritional survey with questionnaire. To identify the relationships between pattern of health food and food lifestyles, 503 men and 437 women aged 18 to 65 years were divided into 5 groups of food lifestyles : Health Eaters, In-a-Dither, Traditional Eaters, Conscientious and People on the Go. As a substantial percentage of the subjects were used some kinds of nutrients supplement. The higher the age and family income were, the higher the percentage of health food usage was. There was the significant difference between sexes in usuage of health food. Health food usage was higher in the food lifestyle pattern of Health Eater than other food lifestyles.

• The Journal of the Korea Contents Association
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• v.20 no.9
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• pp.261-270
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• 2020

This study aimed to investigate the competing relationships among webzines, TVs and online video platforms in terms of usage gratification of consumption of beauty contents based on niche theory. Five types of usage gratification including information, entertainment, attractive characters, convenient usage and honesty were identified from the previous literature and they were used for niche analysis. The findings showed that online video platforms had the wider breadth than webzines and TVs in all dimensions of usage gratification except for attractive character and TVs and online video platforms had the least niche overlap. The results also revealed that online video platforms had the competitive superiority over the other media in terms of convenient usage and honesty. This study has meanings in a way that it can be used as guidelines for how the future consumption patterns of beauty contents will be.

• Korean Journal of Cognitive Science
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• v.16 no.2
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• pp.123-140
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• 2005

The purpose of this paper is to examine the frequency and usage of sentence patterns appearing in electronic dictionaries used in Korean language education in order to design an automatic sentence patterns checking. First, the concept of sentence patterns is defined and it is classified into sentence structure patterns and sentencial expression patterns. Sentence structure patterns and sentencial expression patterns are analyzed how they are expressed in the Korean Learner's Corpus. learner's Corpus is built into the Standard Corpus, which all Korean Learners must learn, and the Errors Corpus made by learners. From these research, we will find out how frequently the Sentential Patterns are being used in the Standard Corpus which has been made of Korean Texts and how the Sentential Pattern are being used in the Errors Corpus which were constructed from Korean learner's writings. Finally, having described the Sentential Patterns on the Sentential Electric Dictionary, we determine the optimum speed in the search for the Sentential Pattern.

• Journal of the Korean Home Economics Association
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• v.40 no.3
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• pp.21-40
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• 2002

The aim of this interdisciplinary study is to understand the relationship between the social behavior patterns and space elements, specially micro-housing sociological point of view. It analyzed korean typical floorplans in the apartment housing, focused on the 4-criteria contact or isolation between the individual persons, communication between the generations, hierarchy of the gender and socialization with neighbourhood. It determinate concrete space elements involved correspondent factors with users' social behavior. By reviewing those factors found, it is suggested also the planning concept, that response users' social orientation. As the practical alternatives, some prototypes have been developed not only for improvement of housing plans, but also for resonable housing supply and sustainable usage.