• Journal of Convergence for Information Technology
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• v.8 no.3
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• pp.71-77
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• 2018

In this paper, considering the oxygen sensitivity and preference pattern of the patient, the profile of the oxygen therapy of the individual is specified. And, we design a three-compartment, single compartment oxygen chamber that automatically adjusts the oxygen pressure according to the specified profile. Hyperbaric oxygen therapy is a method of providing patients with 100% oxygen higher than atmospheric pressure for therapeutic purposes. However, there is a disadvantage that the ear pain is caused by the pressure difference depending on the individual. Based on the embedded system, the proposed system creates a patient-tailored oxygen therapy profile by DB of patient's preference patterns and treatment records of oxygen therapy. If only the patient's name is entered, the oxygen chamber system can adjust the oxygen pressure automatically according to the profile pattern to maximize the oxygen treatment effect.

• Journal of Convergence for Information Technology
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• v.8 no.4
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• pp.9-14
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• 2018

The purpose of this study was to analyse the relationship between the characteristics of the patients who received oral antihyperglycemic drugs and their medical adherence in Korea. The study method was a cross-sectional study using the patient sample data of the Health Insurance Review and Assessment Service for 2016, and it was analyzed with 109 major components of diabetes drug. The medical adherence was slightly higher in male than female. The patriots & veterans(free) type had the highest medication adherence because they have low self burden to access medical institutions compared to other insurance types. It is expect that this study result will be used as a basic data to understand the burden of outpatients with health insurance and establish a policy to reduce of the self outpatients' burden with chronic diseases such as type 2 diabetes.

• Journal of the Korean Regional Science Association
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• v.37 no.3
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• pp.37-46
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• 2021

The closure of education office is due to a decrease in the number of students, but it is necessary to look at various causes of this decrease. In particular, unlike other regions, Gyeonggi Province has a large number of students due to redevelopment, relocation of businesses, and changes in school districts. In addition, it is necessary to set the overall direction for the use of closed schools and seek ways to establish an efficient operation and management system in preparation for the changing future of the educational environment. Through this study, the closure of schools in Gyeonggi-do is different from that of local schools. The measures to utilize closed schools in Gyeonggi-do Province should be different and contribute to realizing the utilization of closed schools.

• Journal of Convergence for Information Technology
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• v.11 no.11
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• pp.166-171
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• 2021

An active mount is devised in same geometric constraints with a conventional rubber mount. The proposed mount features the piezoelectric actuator which can be used to reduce the vibration at marine vessels or automotive vehicles. As a first step, a passive rubber mount is adopted and its dynamic characteristics are experimentally evaluated. Based on the geometry of the rubber mount, a rubber element for the active mount is manufactured and integrated with two piezostacks in series, in which the piezostack is operated as an inertial type of actuator. A conventional PID controller featured by the simple and easy implementation, is then designed to attenuate the non-resonant high frequency vibration transmitted from the base excitation. Finally, the control performances of a proposed active mount are evaluated in the wide frequency range and compared with those of the conventional rubber mount.

• Journal of Convergence for Information Technology
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• v.9 no.2
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• pp.108-114
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• 2019

In this paper, we propose an intelligent vocabulary recommendation agent that automatically provides vocabulary corresponding to game-based learners' needs and requirements in the mobile education augmented reality game environment. The proposed agent reflects the characteristics of mobile technology and augmented reality technology as much as possible. In addition, this agent includes a vocabulary reasoning module, a single game vocabulary recommendation module, a battle game vocabulary recommendation module, a learning vocabulary list Module, and a thesaurus module. As a result, game-based learners' are generally satisfied. The precision of context vocabulary reasoning and thesaurus is 4.01 and 4.11, respectively, which shows that vocabulary related to situation of game-based learner is extracted. However, In the case of satisfaction, battle game vocabulary(3.86) is relatively low compared to single game vocabulary(3.94) because it recommends vocabulary that can be used jointly among recommendation vocabulary of individual learners.

• Journal of Convergence for Information Technology
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• v.8 no.6
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• pp.75-84
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• 2018

Objects: This study is a descriptive study to identify the factors influencing the glycated hemoglobin control in type 2 diabetes patients. Methods: This study used raw data from the third year of the National Health and Nutrition Examination Survey performed from 2015. The subjects were 285 people who were classified as type 2 diabetes patients among the 7,380 participants of the National Health and Nutrition Examination Survey. Findings: The factors influencing the glycated hemoglobin control in type 2 diabetes patients were found to be age, education level, prevalence period and sleeping time. Improvements: In type 2 diabetes patients, it is very important to have appropriate education on diabetes when they discovered the disease morbidity in the middle age rather than in the aged period and to have enough sleeping time. A practical program to help this education and training should be developed.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.23 no.12
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• pp.1673-1678
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• 2019

There are various networks and communication methods are used in industrial communication. Enterprises need to convert communications between industrial devices and networks for production line expansion, factory upgrades, network segmentation, and SI. This requires designers manufactured by many manufacturers to provide communication equipment for data or protocol conversion in order to connect and transmit various other mechanical devices to the network. This paper designed industrial communication gateway that can support the transformation of industrial communication protocol using multi-layered communication module. Industrial communication gateways have a structure that connects individual communication modules using RS485 communication to multiple layers. Each communication module consisted of analog and digital data card, LAN, and CAN-enabled card. The main board processor used Atmega micro-processor, and the RS485 slot was placed to have a multi-layer communication module structure. These additive layer type communication modules support analog and digital I/O functions and LAN and CAN for wide use in industrial communication control and monitoring.

• Journal of Internet of Things and Convergence
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• v.7 no.4
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• pp.23-28
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• 2021

Through the 4^th industrial revolution, it is rapidly developing in various fields such as artificial intelligence, AR/VR, and big data, and software is at the center. In the field of education as well, the importance of integrated education to support the development of technology is being emphasized, and in order to compete in software technology, securing human resources for software development should be prioritize in domestic. However, unlike the hardware-centric society of the past, the role of software technology human resources is very important, and the reality is that they are discharging human resources that are far from the human resources image that companies need. In this paper, present an immersed education model for training AR software professionals, and based on this, propose an evaluation index that can grasp the quality of the program of the immersed AR education model. Through the AR education model, it is expected that the weaknesses and strengths of the model can be identified, and it can contribute to setting the direction for improvement of the education program.

• Journal of Internet Computing and Services
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• v.25 no.3
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• pp.35-41
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• 2024

As online activities have rapidly increased due to recent digital changes and the impact of COVID-19, the importance of large-scale data processing and maintenance is increasing. This study compares the performance of the two main types of databases widely used for data storage and management: Relational Database Management Systems (RDBMS) and Non-Relational Databases (NoSQL). Specifically, we measured and evaluated the execution time of data insertion, query, and deletion functions using MySQL, a representative example of RDBMS, and Redis, a representative example of NoSQL. The experimental results showed that Redis showed performance about 5.84 times faster in data insertion, 6.61 times faster in query, and 12.33 times faster in deletion than MySQL. These results demonstrate that Redis provides superior performance, especially in environments requiring large-scale data processing and maintenance. Therefore, companies and online service providers can choose NoSQL databases such as Redis to ensure more efficient data management solutions. We hope this study will be an essential reference when selecting a database based on data processing performance.

• Culinary science and hospitality research
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• v.20 no.1
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• pp.220-237
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• 2014

This study was intended to survey on the restaurant selection preferences by elderly consumers' values and lifestyle. The survey was residing in Seoul and men and women who were 55 years of age or older to achieve the purpose of this study, the theoretical and empirical research methods research methods were combined. The results of the study are summarized as follows. First, Action oriented intrinsic value of elderly consumers highest lifestyle influence. This is an internal value-oriented elderly consumers to follow the latest fashion trends and challenges in the new one, we enjoyed the service and sometimes want to experience the frenetic fun means. Second, Realization oriented lifestyle on the Brand standards, food quality standards, environmental standards positive effect was found to be Principle oriented life style based on the environment positively influence. This trend Principle oriented lifestyle can talk comfortably while you can relax and quiet around people, mainly from a reputable place, and action-oriented selection of the hotels facilities and senior discount price menu and the service is friendly and Notice that if you use a little less meoleodo, and these results are only for the elderly consumers with access privileges and services using the factors of elderly consumers loyalty and Catering Food service satisfaction should be efforts to raise. Third, elderly consumers select attribute value and proven results Food service elderly consumers based on personal values and lifestyle are different catering companies can select the properties that standard means, elderly consumers are value-oriented properties and select the Food Service Industry catering companies by identifying the active elderly consumers in future marketing strategies to be able to bring a positive impact considered.