• Journal of the Korean Ceramic Society
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• v.55 no.2
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• pp.116-125
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• 2018

Color shade variation was investigated in zirconia dental blocks, prepared using commercial powders. As a reference color-shade block we used the color indexes of A2, A3.5, A4 and B3, according to the VITA classical color scale. The zirconia powders for color shade blocks showed colors of white, yellow, pink and grey, respectively, after firing at $1530^{\circ}C$. The zirconia powders were mixed according to the recipe of color shade blocks and shaped at lower pressure using a uniaxial hydrostatic press. The shaped sample was inserted into a vinyl pack and sealed in a vacuum form machine. The shaped block samples were reshaped at 450 bar using an isostatic cold press and fired at $1530^{\circ}C$ for three hours. In order to investigate the atmospheric color variation with firing temperature, the A2, A3.5, A4 and B3 sintered blocks were fired between $700^{\circ}C$ and $1300^{\circ}C$ under controlled atmosphere of $pN_2$ and $pO_2$. The surface color picture was taken using a smart phone camera and compared with the results obtained using the VITA classical color scale. Quantitative color index value, CIELAB, was measured using a color-meter. Above $800^{\circ}C$, the color darkness greatly increased with the increase of the reduction temperature and keeping time.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2015.05a
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• pp.298-300
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• 2015

Beacon is a signal device, which mainly used to support the safety of the locate and operation of a watercraft and aircraft. Recently, the IT sector BLE (Bluetooth Low Energy) also made possible to operate with less energy over several months using a beacon standards are applied. In addition, the location-based services and technologies using BLE Beacon has attracted attention. However, there is the problem that by using only the position location Beacon devices when high error rate can be measured accurate position. Therefore, in this paper, combines WiFi and Beacon based on Smartphone. Also propose an indoor positioning algorithm reduces the error rate of the position location value.

• IEMEK Journal of Embedded Systems and Applications
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• v.12 no.3
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• pp.185-192
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• 2017

Due to the characteristics of low power, high durability and high density, NAND flash memory is being heavily used in various type of devices such as USB, SD card, smart phone and SSD. On the other hand, because of another characteristic of flash cell with the limited number of program/erase cycles, NAND flash memory has a short lifetime compared to other storage devices. To overcome the lifetime problem, many researches related to the wear leveling have been conducted. This paper presents a method called a TCB (Tracking Cold Blocks) using more reinforced constraint conditions when classifying cold blocks than previous works. TCB presented in this paper keeps a MCT (Migrated Cold block Table) to manage the enhanced classification process of cold blocks, with which unnecessary migrations of pages can be reduced much more. Through the experiments, we show that TCB reduces the overhead of wear leveling by about 30% and increases the lifetime up to about 60% compared to BET and BST.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.13 no.2
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• pp.209-215
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• 2013

Currently Plastic Student Identity Card has not been used frequently because it is inconvenient to possess. In this paper, we propose and develope Mobile Student Identity Card(MSIC) which consists of combination of smart phone and student identity card to support convenient campus life for students in school. The main features of the developed MSIC are as follows. First, it can confirm student identity and offer MSIC to each students by using Database. Second, it can support convenient campus life for students by adequate layout. In the performance evaluation, we use development kit based on Android and AVD(Android Virture Device) for simulation.

• Journal of the Korea Furniture Society
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• v.23 no.3
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• pp.252-260
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• 2012

Cultural products, applying the design elements of cultural heritage Bekuje content of the product, we chose the useful material that can be used on a desk stand in the smart-phone Sticky Notes (Post-it) for use in modern life. The goal of the development design, developed in the design and excavation element modeling can be taking advantage of the characteristics of traditional decor come connected by a pattern of Baekje, eggplant in harmony with modern life, a new sense was harmony, design. He stressed the beauty of decorative molding to apply discriminatory morphological changes associated with each, a unique pattern of human pattern Jinmyosu Bekuje was elected to the motif of cultural property. You can also use a visual representation of the beauty obviously sophisticated pattern that appears frequently in Baekje, was also emphasized inheritance and traditions of Korea. We also attempted a new way to make sure we can diversify and whether it is possible as a new form, enhance the value of products, from concept to molt general existing tourism products.

• Korean Journal of Clinical Pharmacy
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• v.26 no.1
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• pp.13-23
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• 2016

Background: South Korea is rapidly being an aging-society and the demand of long-term care insurance services for elderly patients is rising. In addition, because the elderly taking multiple medicines, the adherence is lowered and the adverse events are easily occurred. Therefore, many are interested in introducing the geriatric pharmacy specialist to manage this situation. Purpose: By applying a similar program such as the geriatric pharmacy specialist working in nursing home, we conducted this study to evaluate the potential contribution to both the health insurance services and financial savings for the elderly patients. Methods: We conducted a trial in an elderly nursing home to collaborate between doctor and pharmacist making a checklist for improving medication adherence and establish a consultation system. Also we applied a smart phone application in the pharmaceutical care processes. Results: Thereby completing the drug therapy related checklist apply to nursing facilities in South Korea. And we got a performance that improves medication adherence when used in the clinical practice settings. Conclusion: By introducing a training program of pharmacy care managers and geriatric professionals such as the United States and Japan, we revealed the elderly nursing home residents and vulnerable elderly people living alone were improved the medication adherence and it will contributed to the health and quality of life of the patients.

• The Journal of the Korea Contents Association
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• v.11 no.8
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• pp.448-458
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• 2011

The availability of many smartphone applications and ubiquitous Wi-Fi technology has greatly spread the uses of smartphones. Particularly smartphones with the locative media services in tourism are booming because location-based technology such as GPS is well suit with tourism and tourists' needs. Smartphones also overcome the technological limit of traditional information media such as printed book, newspaper, etc. Based on the Niche Theory, the study examines the competitive relationships among information media that are used in tourism including smartphones, traditional paper publications, and computers. The paper also examines the niche of each medium based on the theory and finds which medium is more effective and preferred by people who utilize the services before and during their travel.

• Journal of Distribution Science
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• v.10 no.9
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• pp.23-29
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• 2012

Purpose - The main purpose of this study is to find consumers' usage behavior in mobile services. To achieve these research goals, we empirically estimate the relationship between characteristics related to the use and provision of mobile services and factors influencing consumers' intentions. Research design / data / methodology - This study based on TAM, in which behavior is seen as a consequence of affect and intentions and used the theory of consumption values which is a means of explaining user decisions to employ a utilitarian and hedonic facet using by smart phone. Results - The result of the study verified that specific factors, such as expectations about pleasure and monetary value, had the biggest influence on the service usage pattern of mobile consumers. And typically, when consumers are expected to monetary damages, it will be avoided. However, in result of this study, it was found that mobile service users pay a high cost, but they are in pursuit of pleasure and fun. Conclusions - These results, a variety of applications in the mobile service are being provided to users. As information technology has developed, companies should have providing diverse application programs and good quality of services with advanced information technology.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2013.05a
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• pp.281-283
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• 2013

In this paper, we have presented the implementation plan for the Server interface and how to implement the Client GUI interface of a form you can use Android considerations and ERP Interface methods available in mobile devices, with iOS. It provides in the form of Web services using TCP / IP, how to handle the data, communication of Client and Server in mobile devices, coordination of ERP that can be used in mobile devices by presenting how to send in XML format it presented a new method which can be performed more efficiently.

• Korean journal of food and cookery science
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• v.26 no.6
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• pp.699-706
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• 2010

Since atopic dermatitis requires continuous care, the role of a patient's parents is important. However, the majority of parents cause even more serious situations by limiting allergy-inducing foods too much, causing an imbalance in nutrition and decline in immunity. Therefore, educating parents systematically and repeatedly via personal computer or smart phone could help to prevent and manage atopic dermatitis. In this study, 126 recipes of 4 seasons were developed for the parents of atophy students by using food with least chemical additives. After developing these recipes, a blog named "Atop" meaning "atophy stop" was made with these recipes and cooking step photos. In this blog, the visitors who used these recipes showed improvement responses of atopic dermatitis management. The results of this study show that further nutrition education programs such as this blog should be developed continuously and an effective evaluation tool must be also developed for the further prevention and management of atopic dermatitis.