• Journal of the Korea Society of Computer and Information
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• v.17 no.1
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• pp.117-123
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• 2012

The purpose of this study is to design and develop the e-mentoring system which supports the effective information education and to evaluate the usability of the system. Through literature reviews of related studies, an effective e-mentoring performance model was drawn. An e-mentoring system was designed and developed based on the model. 237 middle school students who had participated in e-mentoring for the information education evaluated the usability of the system. As a result of it, the system was considered good in both category(supporting mentoring(M=3.63), technology(M=3.78). The means of subcategories of 'supporting mentoring'(instructional easiness, psychological safety, and adaptability) were scored 3.65, 3.30, 3.43 respectively. And means in the subcategories of 'technology'(usefulness, accuracy, and look & feel) were 3.90, 3.64, and 3.73. It can be concluded that the e-mentoring system developed in this study was effective in mentoring information education.

• Journal of the Institute of Electronics Engineers of Korea TC
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• v.46 no.6
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• pp.94-102
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• 2009

In [1], the authors have proposed a novel scheme to achieve full diversity and to combat the time delays from each relay node, but decode-and-forward (DF) model operation mode puts more processing burden on the relay. In this paper, we not only extend their model into amplify and forward (AF) model proposed in [2],[3], but also propose an efficient decoding algorithm, which is able to order the joint channel coefficients of overall channel consisting of source-relay link and relay-destination link and cancels the previous decoded symbols at the next decoding procedure. The simulation results show that this algorithm efficiently improves its performance achieving 2-3dB gain compared to [1] in high SNR region and also useful to DF achieving more than 3dB gain compared to an original algorithm.

• The Journal of Society for e-Business Studies
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• v.25 no.3
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• pp.77-93
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• 2020

The literature has reported that hierarchical classification methods generally outperform the flat classification methods for a multi-class document classification problem. Unlike the literature that has constructed a class hierarchy, this paper evaluates the performance of hierarchical and flat classification methods under a situation where the class hierarchy is predefined. We conducted numerical evaluations for two data sets; research papers on climate change adaptation technologies in water sector and 20NewsGroup open data set. The evaluation results show that the hierarchical classification method outperforms the flat classification methods under a certain condition, which differs from the literature. The performance of hierarchical classification method over flat classification method depends on class similarities at levels in the class structure. More importantly, the hierarchical classification method works better when the upper level similarity is less that the lower level similarity.

• Journal of the Korean Society for Library and Information Science
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• v.52 no.3
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• pp.121-147
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• 2018

Academic libraries in Korea have had more and more troubles in management due to the drastic increase in quantities and budgets for purchasing expensive international academic information resources. In this research, with a focus on the international electronic information resources, an attempt is made to overcome such difficulties in management of academic libraries in the following steps: First, the amount of budgets for purchasing resources and building collections for academic libraries is analyzed; Second, the current state of academic library consortia, both domestic and foreign, is reviewed; Third, the current administrative issues and strategic directions of domestic academic library consortia, including the KESLI Consortium of KISTI, ACE Consortium of KERIS, and Consortium of Korean Council for University Educations, are examined; and Fourth, based on the above collected information, a proposal is made to improve the collection and distribution system for international academic information resources in Korea.

• The Journal of the Korea institute of electronic communication sciences
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• v.9 no.9
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• pp.971-976
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• 2014

In this paper, we proposed a low power algorithm using state transition ready method. The proposed algorithm defined a sleep state, a idle state and a run state for the task. A state transition occurring at the time due to the delay time created in order to reduce the power consumption state in the middle of each inserted into the ready state. The ready state considering a power consumption and a delay time in state transition. A scheduling step of performing the steps in excess of the increasing problems have the delay time is long. The power consumption increased for the operation step increase. A state transition from a sleep state with the longest delay time in operating state occurs when the state is switched by the time delay caused by the increase in operating time reduces the overall power consumption reduced. Experiments [6] were compared with the results of the power consumption. The experimental results [6] is reduced power consumption than the efficiency of the algorithm has been demonstrated.

• The Journal of Society for e-Business Studies
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• v.23 no.2
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• pp.123-133
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• 2018

Recently, countries are pursuing vigorous research, development and commercialization in cooperation with industry, academia and researcher to take the lead in building a smart manufacturing system that is at the center of the fourth industrial revolution. According to a research report [4], the competitiveness of Korea in the area of basic technology, hardware, and software of the smart factory is reported to be less than 70% of the developed countries. In this study, we reviewed the existing research literature and analyzed the current status of smart manufacturing technology and major issues in the manufacturing industry. We tried to provide ideas for collaboration with core technology researchers and companies with business processes. Internet of Things, CPS and robot technologies have been the most active in smart manufacturing area. It can be seen that cooperation between researchers and industries in the early stage is being done through the case of industry application of each core technology.

• The Journal of Society for e-Business Studies
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• v.25 no.2
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• pp.109-126
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• 2020

This study attempts to find out the characteristics of digital currency and currency transformation through the analytical descriptions of the literature. In the early days of the emergence of new currency, market-oriented autonomous monetary adjustment was made along with various attempts by the private sector, and then government-centered central currency management and coordination were made for the national monopoly of profits and power. Digital currency can be seen as the emergence of a new form of money that will bring about paradigm changes. CBDC can be divided into direct and indirect types. CBDC is expected to require a strategic approach by the government or firm as it will bring about changes in the ecosystem of related industries. Libra is a stablecoin designed to minimize price fluctuations, and if it succeeds in commercializing it, it is expected to bring about revolutionary changes in the financial industry around the world.

• Journal of the Korean Society for Library and Information Science
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• v.46 no.4
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• pp.61-76
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• 2012

The research reports the results from an investigation of various measurement elements and techniques appropriate for the economic assessment of academic libraries, with a view to apply them in future evaluation of academic libraries in Korea. Two libraries participated in the pilot study. In one library, CVM (contingency valuation method) was applied to services ranging from circulation, electronic collection, reference, user education and facility. In the second library, three different methodologies--time value, alternative service value and CVM--were all applied to measure the value of electronic collection. The research provides analyses of measurement elements used, study procedures and measurement results. Based on these analyses, the study also makes suggestions in the areas of measurement goals, service, users and the calculation of B/C ratios that need to be taken into consideration in order to execute reliable and valid assessment of academic library's value.

• Korean Journal of Agricultural Science
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• v.22 no.1
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• pp.24-41
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• 1995

The objective of this study were to review and analyze the application technologies of electronics and microprocessor for environment control and automated management systems of livestock production of the advanced countries, and to select the appropriate and applicable technologies for our systems among the analyzed. In this study, the environment control systems were analyzed mainly on the poultry production systems; and the automated management systems on swine and dairy production systems. According to the results, the advanced technologies reviewed and analyzed could be applicable for designing our animal production systems, if those were modified and remodeled for our situation.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.9 no.1
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• pp.24-31
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• 2016

This thesis is the study of the effects of Korea and China to Japan's moxibutsion formation historically and the process of Japan accepting and systemizing these effects. The method to the study is to organize the features and developments of Korea, China and especially Japan periodically by focusing on literature. Japan had traveled through China and Korea to resolve the medical problems in Japan and established a traditional medical system by interacting medical technology and publications. Korea had made a tremendous role in developing Japan's traditional medical development by accepting and making a system to China's advanced medical knowledge and books to spread these to Japan. However, Japan is the most developed from those three country for moxibustion. Through the studies of Japan's moxibustion culture and the process of the development, this thesis will present methods of development and recognition to our own traditional medicine of moxibustion.