• Journal of the Korea Institute of Information Security & Cryptology
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• v.19 no.3
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• pp.133-142
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• 2009

Although the average amount of spam users receive a day is statistically decreasing in Korea, they still complain of spam and insist there is a gap between the amount of spam users receive in reality and the amount of spam the users feel due to spam. This study analyzes the cause of the gap and suggests the way of complementing the traditional measure of the amount of spam receipt. In addition, we provide the conceptual framework of 'spam management index' that explains the overall spam counteract performances from the users' point of view. Especially, we develop the method of measuring 'spam stress' which can be used as an qualitative output element. Finally we apply the model in Korea to develop spam counteract policies.

• Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
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• v.20 no.1
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• pp.119-126
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• 2022

This study provides technical information about the nuclear fuel handling process, which consists of various subprocesses starting from new fuel receipt to spent fuel shipment at a nuclear power plant and the design requirements of fuel handling equipment. The fuel handling system is an integrated system of equipment, tools, and procedures that allow refueling, handling and storage of fuel assemblies, which comprise the fuel handling process. The understanding and reaffirming of detailed code requirements are requested for application to the design of the fuel handling and storage facility. We reviewed the design requirements of the fuel handling equipment for its adequate cooling, prevention of criticality, its operability and maintainability, and for the prevention of fuel damage and radiological release. Furthermore, we discussed additional technical issues related to upgrading the current code requirements based on the modification of the fuel handling equipment. The suggested information provided in this paper would be beneficial to enhance the safety and the reliability of the fuel handling equipment during the handling of new and spent fuel.

• The Journal of Economics, Marketing and Management
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• v.5 no.1
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• pp.27-37
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• 2017

Domestic government debt securities is one of the steps which is taken by the government of Indonesia as a major source of financial budget, covering for the budget deficit, debt payments and interest debt. The purposes of this research are to know the development of budget deficits, government debt and impact of domestic government debt securities against economic growth in Indonesia. Method of analysis used Ordinary Least Squares (OLS) analyzing the impact of the domestic debt against economic growth in Indonesia. This research uses time series data from 1997 to 2014. Total government debt and domestic government debt securities in Indonesia increased during the last five years. The average of domestic government securities was above 50 percent of the total government debt. Estimated results showed domestic government debt securities has a positive and significant effect to economic growth. Official development assistance (ODA) has a negative effect to economic growth. Other variables such as the gross fixed capital formation and receipt of remittance have positive and significant effect, total imports and government expenditure have negative and significant effect against economic growth.

• Journal of Preventive Medicine and Public Health
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• v.56 no.5
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• pp.475-480
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• 2023

Objectives: This study examined differences in health care spending and characteristics among older adults in Korea by high-cost status (persistently, transiently, and never high-cost). Methods: We identified 1 364 119 older adults using data from the Korean National Insurance Claims Database for 2017-2019. Outcomes included average annual total health care spending and high-cost status for 2017-2019. Linear regression was used to estimate differences in the outcomes while adjusting for individual-level characteristics. Results: Persistently and transiently high-cost older adults had higher health care spending than never high-cost older adults, but the difference in health care spending was greater among persistently high-cost older adults than among transiently high-cost older adults (US$20 437 vs. 5486). Despite demographic and socioeconomic differences between transiently high-cost and never high-cost older adults, the presence of comorbid conditions remained the most significant factor. However, there were no or small differences in the prevalence of comorbid conditions between persistently high-cost and transiently high-cost older adults. Rather, notable differences were observed in socioeconomic status, including disability and receipt of Medical Aid. Conclusions: Medical risk factors contribute to high health care spending to some extent, but social risk factors may be a source of persistent high-cost status among older adults in Korea.

• Information Systems Review
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• v.10 no.3
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• pp.289-311
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• 2008

This study is a development of quality scale and a measurement of quality levels for the Hospital Information System(HIS) used in the hospital industry. This study is to provide decision-making guidelines for hospital managers, system analysts, and software designers, and to provide feedback for the users' information needs. The target people of the study were medical doctors, nurses, pharmacists, and clerical staff. The service contexts of usability were diagnosis/treatment, nursing, medicine preparation, and treatment fee receipt/claim. The quality factors were the efficiency, effectiveness, and satisfaction of IS09241-11. This study shows that the current domestic HISs are mostly based on patient diagnosis/treatment and treatment fee accounting, and that other quality scales are necessary according to different job categories, specializations, positions, and service domains. Especially, the low quality of HIS was found in the abnormal service processing, information sharing by outside institutions, and standardization. It may be added that the HIS should be improved and developed in these respects.

• Journal of Digital Contents Society
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• v.15 no.2
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• pp.209-217
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• 2014

It is very important to classify a lot of table-form documents into the same type of classes or to extract information filled in the template automatically. For these, it is necessary to accurately analyze table-form structure. This paper proposes an algorithm to extract corner points based on line edge segments and to classify the type of junction from table-form images. The algorithm preprocesses image through binarization, skew correction, deletion of isolated small area of black color because that they are probably generated by noises.. And then, it processes detections of edge block, line edges from a edge block, corner points. The extracted corner points are classified as 9 types of junction based on the combination of horizontal/vertical line edge segments in a block. The proposed method is applied to the several unconstraint document images such as tax form, transaction receipt, ordinary document containing tables, etc. The experimental results show that the performance of point detection is over 99%. Considering that almost corner points make a correspondence pair in the table, the information of type of corner and width of line may be useful to analyse the structure of table-form document.

• KIPS Transactions on Computer and Communication Systems
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• v.9 no.11
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• pp.250-255
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• 2020

For the resolution of the latency problem of the cloud center-based cloud computing, fog computing was proposed that allows end devices to offload computations to nearby fog nodes. In the fog computing, virtualized service images are placed on fog nodes and, if service images are placed close to end devices, the duplicate service image placement problem may occur. Therefore, in this paper, we propose a service image placement mechanism based on the logical fog network that reduces duplicate service images by considering the pattern of collected service requests. For the performance evaluation of the proposed mechanism, through simulations, we compare ours with the on-demand mechanism placing a service image upon the receipt of a service request. We consider the performance factors like the number of service images, the number of non-accommodated service requests, and the network cost.

• Journal of Arbitration Studies
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• v.16 no.1
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• pp.45-80
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• 2006

The purpose of this paper is to make research on the method of arbitration agreement, the adoption and contents of the Convention on the Use of Electronic Communications in International Contracts, and the standpoint and problem with reference to the new Convention's application to the method of arbitration agreement in New York Convention. Last year the UN General Assembly and UNCITRAL adopted a new Convention on the Use of Electronic Communications in International Contracts that makes agreements by electronic communications enforceable, including arbitration agreements under the Convention on the Recognition and Enforcement of Foreign Arbitral A wards (New York Convention). Aimed at enhancing legal certainty and commercial predictability where electronic communications are used in relation to international contracts, the provisions of the Convention deal with, among other things, determining a party's location in an electronic environment; the time and place of dispatch and receipt of electronic communications; and the use of automated message systems for contract formation. Under the New York Convention, arbitration agreements in international contracts must be reduced to writing before they can be enforced. But under the new Convention, an arbitration agreement made entirely in electronic form would be enforceable. The working group expressed overall support in favor of the inclusion of a reference to the New York Convention in the new Convention. However, one proposal was that the exclusions provided under article 2 of the new Convention might be too broadly worded to adequately accommodate the New York Convention. In conclusion, Korea's government authorities should take prompt measures to sign and ratify the new Convention, and declare on the scope of its application. Also Korea's arbitration institute should make preparation for the amendment of the arbitration act and arbitration rules in accordance with the new Convention.

• Journal of the Institute of Electronics and Information Engineers
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• v.53 no.11
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• pp.139-147
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• 2016

This study described the design scheme for each step of the production test for the Fire Control System(FCS) of the K-55A1 PIP business of Hanwha Thales since 2011. From the time of receipt of the product It is necessary to improve the FCS's reliability by using the Unit Test, burn-In test, System Test. FCS of K-55A1 acts as a 'head' that control the self-propelled howitzer, and connected with the electrical and physical connection of self-propelled howitzer's multiple unit (Inertial navigation systems(IN), Muzzle Velocity Radar (MVR)) for the normal operation without an inch of error in operating. We designed the production testing equipment automatically as much as possible and designed with the environment similar to the self-propelled howitzer. by using this production testing equipment, It should help for the strengthen national defense of the Republic of Korea.

• Journal of Technology Innovation
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• v.24 no.2
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• pp.143-175
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• 2016

In this study, we have analyzed the impact of firm, innovation and industry characteristics on firm's appropriation strategy focusing of the relative preference of patents and trade secrets by using the Korea Corporate Innovation Survey 2005, 2010 and 2014 data. According to the analysis results, companies with characteristics such as venture, high-technology industry, receipt of public R&D subsidies, performing product innovation, high R&D expenditure, prefer patents to trade secrets relatively. However, firm size and R&D cooperation did not have a statistically significant effect on the relative preference. This shows that policy on appropriation system considering the industry characteristics may be more effective. Companies in the industries with a high market concentration showed that trade secrets are preferred, especially these characteristic was distinctly in small and venture companies. This means that the increase in strategic patent applications of the incumbent firms is able to restrict the patent activities in small and venture companies. Because the excessive increase in strategic patents is likely to constrain the innovation activities of small and venture firms ultimately, policy initiatives to limit the abuse of strategic patent applications is required.