• Journal of the Korea Safety Management & Science
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• v.16 no.4
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• pp.331-341
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• 2014

Internet of Thing(IoT), which is recently talked about with the development of information and communication technology, provides big data to all nodes such as companies and homes, means of transportation etc. by connecting all things with all people through the integrated global network and connecting all actual aspects of economic and social life with Internet of Thing through sensor and software. Defining Internet of Thing, it plays the role of a connector of providing various information required for the decision-making of companies in the cloud computing environment for the Insight usage by collecting and storing Raw Data of the production site through the sensor network and extracting big data in which data is accumulated and Insight through this. In addition, as the industry showing the largest linkage with other root industries among root industries, the mold industry is the core technology for controlling the quality and performance of the final product and realizing the commercialization of new industry such as new growth power industry etc. Recently, awareness on the mold industry is changing from the structure of being labor-intensive, relying on the experience of production workers and repeating modification without the concept of cost to technology-intensive, digitization, high intellectualization due to technology combination according to IT convergence. This study, therefore, is to provide a golden opportunity to increase the direct and indirect expected effects in poor management activities of small businesses by actually implementing and managing the entire process of mold life cycle to information system from mold planning to mass production and preservation by building SME(small and medium-sized enterprises)-type mold life cycle management information system in the cloud computing environment and applying it to the production site.

• Journal of Digital Convergence
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• v.15 no.9
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• pp.79-85
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• 2017

The purpose of this study was to investigate utilization behaviors of smartphones while walking that are increasing recently and to examine the effects of smartphone usage patterns on human factors of pedestrian safety. In order to understand the motives and actual conditions of pedestrians' use of smart phones, a online questionnaire survey was conducted on people in their 20~30s who use smartphones. As a result, 98.6% of the respondents had experience using smartphones while walking. After performing the survey by extracting 17 uses the synchronization elements in the prior studies was extracted with two factors from the factor analysis. Particularly, respondents whose motivation to use smartphones was 'pandemic' were analyzed to have an influence on the risk of accident due to use of smartphones among human factors of pedestrian safety.

• The Journal of the Petrological Society of Korea
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• v.25 no.1
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• pp.69-83
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• 2016

Radiocarbon and OSL ages of three monogenetic volcanoes inferred to be the last volcanoes on Jeju Island, Korea were determined to identify a volcano described in historical records. The results show that the ages of those volcanoes are roughly <3.8 ka (Songaksan), >4.5 ka (Biyangdo), and <6~7 ka (Ilchulbong). Though our efforts to make a positive match between historical records and volcano-chronological dating were not successful, we make a new suggestion in this paper that two historical records of volcanic activity in 1002 and 1007 A.D. could be interpreted to be the sequential volcanic events from a single monogenetic volcano. In addition, based on a volcanological reinterpretation of historical records, we infer that the volcano described therein is most likely Mt. Songaksan, in Daejeongeup, which had early phreatomagmatic and late magmatic activities after 3.8 ka ago. Furthermore, considering the geopolitical relationship between the Goryeo Dynasty and the Tamna Kingdom, in addition with the culture of the era, this study sheds new light on the possibility that there is a time gap between the actual eruptions and the historical recording of them by ancient people.

• Journal of Distribution Research
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• v.10 no.4
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• pp.23-39
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• 2005

Recently, aging population will be coming out of the first magnitude demanders in this age. The purpose of the study is to present the basic data useful to get the public attention concerning the development of the consumer market of the elderly people by looking into the various factors which may influence the consumer. The results of the study will be very useful in establishing the relevant marketing strategies and in. providing the business opportunities for the elderly consumers in Korea. A survey was performed on actual Korean consumers aged over 55 and the results was compared with data previously reported in Korea and U.S.A.

• The Journal of the Korea Contents Association
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• v.15 no.5
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• pp.592-606
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• 2015

Depression and mental illness across all age groups, and steady increasing in suicide rate are our major social problems which cause dramatically decreasing government competitiveness. While Korean government has implemented various policies to improve mental health and prevent suicide, it faces revealing issues in progress on implementation and referral management systems. The current research examined domestic and foreign cases to understand the actual status and directivity of ICT convergence plan in terms of mental health. The United States and the United Kingdom have provided convergent ICT service, telepsychiatric care to senior citizens in rural areas, children and adolescents, socially disadvantaged class, etc. In Korea, emergency-notice devices are installed to prevent suicide for single elderly people, and diverse mobile health devices are developing to cure depression and Alzheimer's disease. ICT convergent mental health care service is needed to save socioeconomic costs and realize universal welfare for an aging society. Social consensus on sharply conflict issues, medical law and medical devices about telepsychiatry service, effectiveness studies on users' unique psychiatric characteristics by life cycle, and region-specialized strategies for the least densely populated rural regions with lower access to medical care should be considered.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.40 no.3
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• pp.99-106
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• 2017

With the increased interest in the quality of life of modern people, the implementation of the five-day working week, the increase in traffic convenience, and the economic and social development, domestic and international travel is becoming commonplace. Furthermore, in the past, there were many cases of purchasing packaged goods of specialized travel agencies. However, as the development of the Internet improved the accessibility of information about the travel area, the tourist is changing the trend to plan the trip such as the choice of the destination. Web services have been introduced to recommend travel destinations and travel routes according to these needs of the customers. Therefore, after reviewing some of the most popular web services today, such as Stubby planner (http://www.stubbyplanner.com) and Earthtory (http://www.earthtory.com), they were supposed to be based on traditional Traveling Salesman Problems (TSPs), and the travel routes recommended by them included some practical limitations. That is, they were not considered important issues in the actual journey, such as the use of various transportation, travel expenses, the number of days, and lodging. Moreover, although to recommend travel destinations, there have been various studies such as using IoT (Internet of Things) technology and the analysis of cyberspatial Big Data on the web and SNS (Social Networking Service), there is little research to support travel routes considering the practical constraints. Therefore, this study proposes a new mathematical model for applying to travel route recommendation service, and it is verified by numerical experiments on travel to Jeju Island and trip to Europe including Germany, France and Czech Republic. It also expects to be able to provide more useful information to tourists in their travel plans through linkage with the services for recommending tourist attractions built in the Internet environment.

• Journal of International Society for Simulation Surgery
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• v.2 no.1
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• pp.13-16
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• 2015

Purpose We conducted a study on the reconstruction of the head's shape in 3D using the ToF depth sensor. A time-of-flight camera (ToF camera) is a range imaging camera system that resolves distance based on the known speed of light, measuring the time-of-flight of a light signal between the camera and the subject for each point of the image. The above method is the safest way of measuring the head shape of plagiocephaly patients in 3D. The texture, appearance and size of the head were reconstructed from the measured data and we used the SDF method for a precise reconstruction. Materials and Methods To generate a precise model, mesh was generated by using Marching cube and SDF. Results The ground truth was determined by measuring 10 people of experiment participants for 3 times repetitively and the created 3D model of the same part from this experiment was measured as well. Measurement of actual head circumference and the reconstructed model were made according to the layer 3 standard and measurement errors were also calculated. As a result, we were able to gain exact results with an average error of 0.9 cm, standard deviation of 0.9, min: 0.2 and max: 1.4. Conclusion The suggested method was able to complete the 3D model by minimizing errors. This model is very effective in terms of quantitative and objective evaluation. However, measurement range somewhat lacks 3D information for the manufacture of protective helmets, as measurements were made according to the layer 3 standard. As a result, measurement range will need to be widened to facilitate production of more precise and perfectively protective helmets by conducting scans on all head circumferences in the future.

• Journal of architectural history
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• v.10 no.1 s.25
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• pp.61-74
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• 2001

This paper intends to explore some aspects of space as metaphor for the being of a subject and a subjected state of being. This paper deals with 3 Korean communities. Examples include (1) Yeog-maeul in Honam province (2) Samni village in Youngnam province (3) Bem Island in Seoul. Yeog-maeul is the village of Sannmin's (commoners), which is socially isolated from it's surrounding Yangban's villages. The social life in Yeog-maeul is generally divided two areas : that of men and women. The former is expressed as a life Dorang-Pak(outside of the stream) and the latter as Dorang-Ahn(inside of the stream). The former is a life of formality, sacredness. The latter is a life of informality, profaneness. Samni is a typical Yangban's village. With the support of literature such as Kohyun-Hyang-Yak(古縣鄕約). Yangban has exercised the social control which is widely practiced in various fields ranging from the fetal movement to the location of tombs. Bam Island is located Han river. It's resident had lived on the Island for over 700 Years, until they were forced to move collectively out of the Island, and settle in Chang-chun dong of Seoul. Yet, these people have kept holding Bugundang Kut, ritual for the entire village. The former Bam Islanders whose traditional culture is suppressed by the surrounding postmodern culture, have tried to fill the gap between their ideal and actual lives by symbolically realizing the former in the community ritual. In ritual life, the former Bam Islanders are deemed to sacred, while the rest of citizens of Seoul profane. The residents of Yeog-maeul and Samni village which live a life an their traditional space, has been subjects. But, the former Bam Islanders which moved collectively out of traditional space and settle in the postmodern space experience the subjected state of being.

• Journal of Digital Convergence
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• v.14 no.12
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• pp.503-513
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• 2016

The purpose of this study is to figure out family member's perceptions of side rail use in geriatric hospital by Cavanagh's content analysis with in-depth interview. This finding of the study suggests that the six themes of these perceptions are precautionary safety supervision, movement convenience, ritualistic nursing, physical restraint, danger of wounds, and alternative methods in an older person ward, and that the cause of recognized perceptions is not based on actual events, but rather on relatives' perceived protective value. With the transition of medical industry environment, there is a significant emphasis on efficacy and effectiveness of practice, risk management and evidence-based practice. However, the issue of side rail use and physical restraints remains unsolved in care of older people. Nurses claim the necessity of regimented protocol and clarification from professional organization regarding the side rail use.

• Journal of Digital Convergence
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• v.18 no.9
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• pp.39-47
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• 2020

This study was conducted with the aim of investigating the actual state of data utilization and the perception of big data utilization by officials of the provincial Office of Education and to derive implications for the establishment of strategies for big data utilization. An online survey of 440 people was conducted. As a result, the types and sources of data used for work varied, and data collection and refining were the most difficult parts. The infrastructure for data utilization was insufficient and the most necessary factor. The purpose of big data utilization was related to the establishment of educational policy agenda.