• Journal of Energy Engineering
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• v.22 no.4
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• pp.386-393
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• 2013

An feasibility analysis is performed for the tidal current power generation with the examination of the sea water speed distribution at Pungdo. In this analysis, the water speed distribution which is the key issue was obtained from the actual speed distribution data and results in "the annual current tidal power". Due to the lack of cost information, we applied EPRI data from the internet site instead of the actual information. The result could be used as a base data for the construction of current tidal power plant in the near future. And it is expected to provides good data for the Energy policy.

• Journal of Aerospace System Engineering
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• v.14 no.5
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• pp.83-90
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• 2020

Disasters are causing significant damage to the lives and property of our society and are recognized as social problems that need to be solved nationally and globally. The 4th industrial revolution technologies affecting society as a whole such as the Internet of Things(IoT), Artificial Intelligence(AI), Drones(Unmanned Aerial Vehicles), and Big Data are continuously absorbed into the disaster and safety industries as scientific and technological tools for solving social problems. Very soon, twenty-nine domestic UAV-related organizations/companies will complete the construction of a multicopter type small UAV integrated system ('17~'20) that can be operated at disaster and security sites. The current work considers and proposes the mid-to-long term R&D direction of disaster UAV as a strategic asset of the national disaster response system. First, the trends of disaster and safety industry and policy are analyzed. Subsequently, the development status and future plans of small UAV, securing shortage technology, and strengthening competitiveness are analyzed. Finally, step-by-step R&D direction of disaster UAV in terms of development strategy, specialized mission, platform, communication, and control and operation is proposed.

• Spatial Information Research
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• v.8 no.2
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• pp.191-201
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• 2000

Recently, tourism industry is on the trend of expanding its activity arena, boosted by revitalization of regional economy and reorganization of urban environment, undertaken for the purpose of place marketing. However, Korea has not been able to develop a variety of tourism itineraries that can attract the interest of tourists because most tourism resources are isolated with single function. This constraint has prevented tourism industry in Korea from attaining competitiveness. In attempting to overcome this constraint, this study seeks to develop tourism itineraries by constructing and utilizing database on historical and cultural tourism resources based on the case of Kangneung City. Through the construction of information system on historical and cultural resources and tourism support facilities, optimal tourism itineraries that take into account maintenance conditions, types, values, lodging availabilities and accessibility of tourism resource areas can be developed. Moreover, it is expected that this information system will have a high level of usage in the future, for it can provide a wide range of tourism services on the internet and education materials as well as facilitate resources management.

• The Journal of the Korea institute of electronic communication sciences
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• v.15 no.1
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• pp.61-70
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• 2020

In this study, the IOT-based desk layout method was proposed to complement the existing seating method and to improve the work efficiency. The IoT system for the desk layout needs determining the function, type and network protocol of the sensor to find out the working status of the desk to reasonably assist the worker's seat placement. A collection method was proposed. The algorithm used in Block Stacking was used when deciding how to allocate seats using the acquired data. As a result, we could suggest an arithmetic basis for rational desk layout in IoT environment and show that it can be applied to an advanced flexible seating system based on working type in addition to the preferences of employees in the future.

• Journal of the Korean Society for Library and Information Science
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• v.54 no.4
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• pp.53-82
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• 2020

With the increase in smartphone ownership and Internet usage using smartphones, the information environment is shifting from the existing PC to the smart mobile. The current undergraduate students are called Generation Z who prefer smartphones to PCs and video contents to texts. This study attempted to understand their usage behaviors of electronic resources in an academic library in a smart mobile environment. This study conducted a usage statistics analysis with 61,433 usage records of e-books, audiobooks, and e-learning contents and 1,595 records of users in the A academic library during 3 years from 2016 to 2018. The scope of the data includes the date of use, the subject, the year of publication, the channel of use, and each user's gender, affiliation, status, admission date, and graduation date. This study investigated not only the general characteristics of electronic resource use, but also the usage behaviors according to the user's demographic characteristics. Based on the findings, this study suggested practical service plans that are applicable in the near future and reflect changing circumstances.

• Journal of The Korean Association of Information Education
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• v.4 no.2
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• pp.159-168
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• 2001

A ultimate purpose of education is to develop their ability that learners is able to solve present or future immediate problem well. In order to, the educator checks question settlement conditions and leads steadily, the learner needs various data and information for question settlement, and needs communication with many various people. By the way, WEB becomes the source of various data and information that it is naccesary to solve problem for freedom navigation of internet, because accelerates interaction quality communication needed question settlement process, offers the best studying environment for problem solution drilling. A methodolagical tactics for accelerating learner's question solution activity is helped by small-group action drill. According to, this treatise develops system of question solution drilling with web for a basis by small group action drill, applies the fifth grade it experimentally.

• Journal of Korean Academy of Nursing
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• v.35 no.3
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• pp.631-640
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• 2005

Purpose: The present study purposed to investigate and analyze domestic websites providing information about dementia and to suggest future directions for the development of dementia-related websites. Mothod: For this purpose, the researcher selected 13 domestic websites that were available in November and December 2004, and evaluated them in terms of construction, operation, accessibility and contents on a scale 4 point (0$\~$3). Result: The construction of dementia-related websites got 6$\~$13 out of 18 points, which suggests that management policies for the operation of dementia-related web sites are inadequate. The operation of dementia-related web sites got 7$\~$15 out of 24 points. In particular, all 13 sites got a low score in the aspect of continuance. With regard to accessibility, the sites were evaluated on how easily users could access the sites and they got 2$\~$8 out of 15 points. In evaluating contents, the sites got 9$\~$18 out of 21 points with regard to the purpose and appropriateness of the contents. Conclusion: This shows that most sites did not provide diverse types of dementia-related information. Because it is highly advantageous to perform primary dementia-preventing management through websites, this study proposes to develop a website evaluation system in order to provide high quality dementia-related information.

• Journal of Digital Convergence
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• v.18 no.6
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• pp.279-285
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• 2020

In the era of the Fourth Industrial Revolution, there are many sensors around. People and things are connected to these sensors to the internet. Numerous connected sensors produce the latest data in seconds, and these data are stacked with big data of unimaginable size. Because personal information can be contained in any place of data produced, device and system protection are needed. Digital twins are virtual models that accurately reflect the status information of physical assets and systems that utilize them. The characteristic of digital twin is that digital twin itself has temporal and structural identity enough to represent the object of reality. In the virtual environment the reproduced reality, it continuously simulates and it virtuals of the point of time or the future, the replica can be created. Therefore, this study cited factors threatening personal information in the era of the Fourth Industrial Revolution. And proposed using digital twin technology that can simulate in real-time to overcome the risk of personal information hacking.

• Journal of Digital Convergence
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• v.12 no.1
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• pp.263-271
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• 2014

Era of multi-channel digital multimedia on the Internet, cable, satellite and IPTV and the growth of new media such as terrestrial broadcast advertising with the poor rating has also dropped sharply. In this situation, terrestrial TV suggesting the introduction of in-program advertising appearing comments. In this study, the introduction of these intermediate advertising the public and professional awareness about the issue by comparing the introduction of in-program advertising feasibility was done in the purpose. Studies on terrestrial TV suggesting the introduction of in-program advertising and public opinion about the differences in perception between experts is high. The introduction of in-program advertising validity of these data for future in-program advertising to provide a basis for enforcement is expected to give.

• Journal of the Institute of Electronics Engineers of Korea TC
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• v.43 no.11 s.353
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• pp.200-209
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• 2006

In recent years, studies on effective data services based on GMPLS are introduced so as to support excessive internet traffic. and filled operation can reduce transmission effectiveness. In this thesis we proposed merging algorithm with hierarchical structure and implementation procedure using ns -2 simulator. The structure composed of tunnel nodes and general nodes. Each node has threshold processing time. Result of that, the operation labels can be calculated. In order to evaluate the performance, we used ns-2 network simulator tool and used variable time parameters. The evaluated values can be used in surplus wavelength and be Possible to process additional traffic. Label merging will bring a decrease in the cost of channel sources for future network configuration.