• Journal of the Korean Institute of Intelligent Systems
• /
• v.25 no.5
• /
• pp.419-424
• /
• 2015

The entry of an aging society require a safety of senior citizens against emergency. However, a home and a residence of senior citizens should not consider a characteristic of safety and the unfortunate accidents could happen in the house or the residence. Especially if the elders live alone then they have a help function using a call button in a bathroom or a closed area. But, a sliding or an overbalance in a bathroom or a closed area of a home may happen suddenly how can require a help in real time. That is a very serious accident to senior citizens. In this paper, we developed the context-aware system using the various sensors for collecting the data which is an activities of daily living of elders and we designed the recognition method using case-based reasoning for detecting the anomaly and the emergency context in the bathroom or the closed area in house. After that, if the anomaly or the emergency are detected then it call to a family or a relative or an administration in real-time.

• Journal of the Korean Institute of Intelligent Systems
• /
• v.24 no.5
• /
• pp.542-547
• /
• 2014

This paper describes the medical and IT convergence system using a smart phone and a heuristic method for the measurement of the dripping speed of the liquid in a drip chamber, which can estimate the remaining time using pattern recognition and difference image from video frame information based on Android technology. The video frames were first made using a smartphone camera and we calculated the difference image between the n image and the (n-1) image and then changed into binary images using the threshold value. At this point, it is very important to find an optimal threshold value using heuristic method to recognize the dripping of the liquids. In addition, the user can adjust the dripping speed according to the doctor's prescription, exactly like watching the progress bar of a mobile application. The experiment results show that our method using video processing technique accurately measures the dripping speed for a wide range of speeds that are sufficient for ordinary practice.

• Journal of Digital Convergence
• /
• v.15 no.12
• /
• pp.423-433
• /
• 2017

The purpose of this study was to examine the effects of the stress on depression of elderly inpatients in geriatric hospitals and verify the mediating effects of self-esteem on the relationships between stress and depression. Data collected from 218 elderly inpatients of geriatric hospitals in Seoul and Gyeonggi region from Sept. 4th to 22nd, 2017 were analyzed with SPSS 23.0. As a results, there was a statistically significant difference in the level of stress, depression, self-esteem of elderly inpatients in geriatric hospitals depending on their Socio-demographic and Hospital-utilization characteristics. Stress of elderly inpatients had a positive influence on their depression(${\beta}=.297$, p=.000), the self-esteem had a partial mediating effect on the relationships between stress and depression(Sobel Z=2.034). These results suggest that the development and provision of self-esteem improvement programs as well as stress management of elderly inpatients are necessary to prevent depression of elderly inpatients in geriatric hospital.

• 전자공학회논문지 IE
• /
• v.48 no.3
• /
• pp.33-39
• /
• 2011

Field training system is an establishment for improving practical ability of college students. That system is a learning experience that are relative to university's regular educational curriculum and industry field training. In order to practice an effective field training system, lots of helps from company, college, students and government's interest are needed. But, in most industry fields, it is hard to accept field training manpower in condition of that has no extra guaranteed budget or staff for field training. Because of it, the biggest matter of college the industry field training is to maintain industry fields. Although students want to be paid properly in industry fields where are furnished the advance facilities and equipments and participated in practices, it is extremely hard situation to achieve it in reality. In this way, the management of industry field training has realistic difficult problems, but it is a necessary system. Therefore, in this paper, methodology and model for industry field training management process are suggested in order to administer effective industry field training. If the industry field training are managed by those system mentioned above, students will have chance to exert their creativeness and speediness through field experience, and industry fields where students can get various dimensions of education are expected to manage.

• The Research Journal of the Costume Culture
• /
• v.23 no.2
• /
• pp.161-175
• /
• 2015

The purpose of this study is to examine the impact of perceived sustainability management fit of SPA brands on consumer purchase intention. A survey was conducted targeting women in their 20s and 30s from April 27th to May 6th 2013, and a total of 350 questionnaires were used in the final analysis. Frequency analysis, reliability analysis, factor analysis, ANOVA, simple regression analysis and multiple regression analysis were carried out using SPSS ver 21.0. The results of this study are as follows. First, fit of all three areas- economic, ecological and social-of sustainability management activities have a significant impact on consumer perception on sustainability activities. Second, perceived sustainability activities by SPA brands are found to have a positive effect on brand attitude, brand trust and consumer satisfaction. Third, brand attitude and consumer satisfaction forged by perceived sustainability activities by SPA brands have a positive impact on consumers' purchase intention. Based on the result of this study, the following marketing implications can be suggested. First, SPA brands need to be more active in all three area of sustainability activities while coming up with measures for differentiated social sustainability activities. Second, SPA brands need to meet their primary obligation by providing consumers with quality products at a reasonable price. Third, SPA brands need to recognize the potential value of sustainability activities as a driver of a longstanding relationship with consumers as well as long-term profit and value creation, leading to a great financial performance.

• Journal of Environmental Policy
• /
• v.8 no.3
• /
• pp.181-206
• /
• 2009

The purpose of this paper is to analyze economic adequacy by estimating the benefit-cost for bird eco-park, eco-center, eco-river, and eco-waterway, which will be built in the new town of Kimpoo, Yangchon. This paper attempts an economic analysis for the development of an eco-friendly new town. The rates of B/C (benefit-cost) in all scenarios are over one. Especially, the B/C rate of the eco-center is the most efficient of the four eco-facilities by 5.02 - 3.75. In addition, the construction costs of the five eco-facilities are assumed to be 50 percent higher, though their economic soundness is maintained. This paper implies that providing ecological variety is one of the core components in constructing housing complexes and suggests that the construction of housing be harmonized with zero-carbon and energy efficient methods.

• Journal of the Korea Society of Computer and Information
• /
• v.16 no.11
• /
• pp.153-161
• /
• 2011

As the problem of GOSST building belongs to NP compete domain, heuristics for the problem ask for immense amount execution time and computations in large scale inputs. In this paper, we propose an efficient mechanism for GOSST construction using space locality PTAS. For 40,000 input nodes with maximum weight 100, the proposed space locality PTAS GOSST with 16 unit areas can reduce about 4.00% of connection cost and 89.26% of execution time less than weighted minimum spanning tree method. Though the proposed method increases 0.03% of connection cost more, but cuts down 96.39% of execution time less than approximate GOSST method (SGOSST) without PTAS. Therefore the proposed space locality PTAS GOSST mechanism can work moderately well to many useful applications where a greate number of weighted inputs should be connected in short time with approximate minimum connection cost.

• Journal of the Korea Society of Computer and Information
• /
• v.17 no.6
• /
• pp.191-199
• /
• 2012

By the way, in light of the knowledge, even public institutions are paying much attention to the management of IT assets for achieving organizational goals. Recently, some public institutions adopt balanced scorecard for enhancing efficiency in operations and management of total administrations. To be interested, some key performance indicators(KPI) of the balanced scorecard reflect the three aspects of IT assets and their possible outcomes. The main focus of this study is to investigate whether there is positive effects of IT asset management through balanced scorecard at public institutions. Specifically, we selected and classified KPIs into different categories depending on three aspects of IT assets, internal process change, and organizational outcomes. To address relationships of KPIs among the categories, we specified each category and developed as a variable respectively. A middle-sized city provided us with 138 KPIs for the development of scales.

• Journal of Digital Convergence
• /
• v.11 no.10
• /
• pp.225-240
• /
• 2013

This study is intended to identify the relationship between antecedents and performance factors that affect the knowledge-sharing of financial professionals. In order to accomplish the objective, antecedents were established as 'disposition to trust', 'subjective norm', and 'knowledge-sharing willingness' in the personal aspect, and 'trust in peers' and 'management support' in the organizational aspect. As performance factors, 'job satisfaction' and 'firm innovation' were established, and a research model was presented. Empirical analysis was done on the research model using collected questionnaires from 185 financial professionals. The research findings are as follows. First, disposition to trust of financial professionals has a positive effect on their knowledge-sharing. Second, trust in peers and management support have a positive effect on their knowledge-sharing. Among the antecedents, trust in peers has the strongest effect on their knowledge-sharing. Third, knowledge-sharing of financial professionals has a positive effect on their job satisfaction and firm innovation.

• Journal of Digital Convergence
• /
• v.11 no.9
• /
• pp.201-207
• /
• 2013

Recently, the interest in a Mobile Office is increasing dramatically and the Smart Phone App Service begin in earnest to be requested in an area of applying SAP system to PC. This study aims to research the system which can be easily implemented with the configuration and Mobile App which cause difficulties in embodying SAP system-based Apps suitable for a mobile environment. First, by realizing SAP system interface that can operate in mobile devices in the form of GUI, assisting the connecting parts of SAP for the users-friendly set-up, providing the communication method of Client, Application, and SAP Service in the form of web service through TCP/IP, and finally showing cases of implementing the method of delivering the data request and result value of Server and Client in the form of XML suggest more effective and new method, the research suggests a new way of making the linkage of SAP more efficient.