• The Journal of Information Systems
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• v.18 no.2
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• pp.1-18
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• 2009

Recently, internet banking is growing rapidly. Moot banks in Korea provide internet banking services. Internet banking becomes a major trend in the financial marketplace. With advanced computer technology and declining communication costs, many customers prefer online alternatives such as internet banking, mobile banking or phone banking rather than going to banks by themselves. The number of customers using those alternatives is skyrocketing and domestic commercial banks encourage them of the use. As the internet is highly developed, customers demand higher quality services and banks develop and provide diverse services in order to respond to them. However, internet banking service users are still afraid of their personal and financial information being exposed on the internet. The purpose of this research is to empirically analyze the influence that appropriate internet banking affect user's security intention. The research model proposed in this study includes user's security intention which is influenced by self-efficacy, security trust, Internet banking attitude, perceived security and security intention. According to the result of this study, self-efficacy and security trust are related to the security attitude. There is a significant relationship between security attitude and perceived security. Also, user's security attitude and perceived security is significantly affected by security intention.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.33 no.4B
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• pp.184-191
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• 2008

NanoQplus, which is an embedded operating system for wireless sensor networks (WSNs) and developed by Electronics and Telecommunications Research Institute (ETRI), provides programmer-friendly preemptive multi-threading programming technique, but it has poor network protocol stack, as compared to TinyOS, one of the famous operating systems for WSNs. In this paper, we apply dynamic MANET on-demand routing (DYMO) protocol, which is being standardized in Internet Engineering Task Force (IETF), to NanoQplus. Since DYMO has been proposed for mobile ad-hoc networks (MANETs) and MANETs have less resource restrictions than WSNs, the basic DYMO protocol cannot be applied to WSNs without modifications. Moreover, coherence with MAC protocol should be considered in order to eliminate redundant data between MAC and network layers. Thus, we propose a modified version of the basic DYMO protocol for NanoQplus. The experimental results from a real sensor network test-bed show that the DYMO implementation using NanoQplus works efficiently in WSNs.

• Journal of the Korean Data and Information Science Society
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• v.21 no.6
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• pp.1041-1049
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• 2010

In Korean professional baseball, attendance is the largest source of revenue for development of professional baseball and the highest concern of professional baseball teams. So, if there is demand forecasting model, it will be helpful for pennant chasers to work out the strategies for drawing attendance. For this reason, this research intends to suggest the model which estimates Korean professional baseball's attendance and uses all usable variables which have an effect on attendance in limited circumstances. We supposed that dependent variable is attendance as well as several independent variables and error term are homoscedastic variance. And then, we compared the models which assume conditional heteroscedastic variance like GARCH and EGARCH with GARCH-t models which use the assumption that error term's distribution follows student-t distribution. In result of that, we could confirm that the models which were made by using GARCH(1,1)-t made estimates the most accurately among the several models considered.

• International Commerce and Information Review
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• v.16 no.2
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• pp.185-198
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• 2014

The purpose of this paper is to examine a causal relationship and interaction among payment of education expenses, economic growth, imports and exports. The results of 'the Granger causality test' suggest that payment of education expenses are affected by imports and exports; and the other factors are not related. In addition, payment of education expenses and the relationship among variables confirmed by IRF show that payment of education expenses has a minus(-) effect on exports at the beginning and then it turns into plus(+) as a certain time passes. On the other hand, it has a minus(-) effect on imports at the beginning, and this gradually changes to zero(0). Lastly, it turns out that it has a plus(+) effect on GDP. It is therefore estimated that the demand for high-quality manpower is expected to grow and new investments for education to rise with increases in imports and exports with initial acceleration. The findings show that government education investment in foreign languages and research manpower must take precedence in order to meet the demand for high-quality manpower.

• Journal of Environmental Impact Assessment
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• v.8 no.2
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• pp.95-107
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• 1999

The organic contents of reservoir sediment can offer a good indicator to events in history of lake life. Reservoir sediment have many information of the past and future fingerprint about development direction of life cycle in biological animals. So, in this study we made an effort to know the distribution of organic contents in Daecheong reservoir sediment. Items for this investigations are such as follows: Loss on ignition, COD, Organic carbon, TN, TP, heavy metal contents, Loss on ignitions were determined in 6.44~15.91% and COD were determined in 1.606~6.859%, organic carbon in 1,077~3.743%. Contents of TP and TN were in the range of 0.083~0.757%, and 0.645~0.926%, respectively.

• IEIE Transactions on Smart Processing and Computing
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• v.4 no.2
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• pp.71-77
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• 2015

Upcoming ground-breaking applications for always-on tiny interconnected devices steadily demand two-fold features of processor cores: aggressively low power consumption and enhanced performance. We propose implementation of a novel superscalar low-power processor core with a low supply voltage. The core implements intra-core low-power microarchitecture with minimal performance degradation in instruction fetch, branch prediction, scheduling, and execution units. The inter-core lockstep not only detects malfunctions during low-voltage operation but also carries out software-based recovery. The chip incorporates a pair of cores, high-speed memory, and peripheral interfaces to be implemented with a 65nm node. The processor core consumes only 24mW at 350MHz and 0.68V, resulting in power efficiency of $80{\mu}W/MHz$. The operating frequency of the core reaches 850MHz at 1.2V.

• Korean Journal of Acupuncture
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• v.41 no.3
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• pp.59-67
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• 2024

Objectives : By reviewing NIH's SPARC program and NCCIH's TARA project, we would like to suggest the direction of research on acupoint utilization in Korea. Methods : The goals, operation methods, result linkage strategies, collaborative activities, and research contents of the SPARC program and TARA program were reviewed and summarized. Results : SPARC connects the identification of medical device mechanisms, clinical efficacy, regulatory approval, and industrialization through nerve stimulation, and the research results are provided to researchers and companies as an open access database. The TARA program creates an open access database of anatomy, physiology, and pathology information on acupuncture points and links it with SPARC to increase understanding and utilization of acupuncture points in the development of medical devices and conducts international cooperation with Korea, China, Japan, etc. Korea's acupuncture point utilization research lacks medical device industrialization connectivity and international cooperation planning. Conclusions : Korea's research on the use of acupuncture points should be planned and managed so that it can be linked to medical device industrialization. In addition, it is necessary to anticipate the demand for bioelectronic medical devices and conduct joint research through open access database linkage and international cooperation.

• Spatial Information Research
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• v.23 no.2
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• pp.49-57
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• 2015

Recently, Through the linkage and opening, the fusion of the spatial information, it is necessary for productive ecosystem to provide a variety of information and to increase the civil use. Depending on the economic growth, demand for quality of life and well-being has been on the increase. Spatial information service contents for the public convenience has emerged to solve the problem such as health, safety, welfare and discomfort of daily life This study aims to implement search services for a tailored residence space through the three-dimensional data modeling on cadastral information. To achieve this goal, we established the requirements for deriving a registered object by investigating recent trend with respect to existing cadastral data model and defined property and relationship. Focusing on Songpa-gu, Jamsil station in Seoul, we implemented search services for a tailored residence space for three-dimensional right analysis in conjunction with residential and commercial complex building. As a result, we derived a way to supply 3D cadastre information through open platforms (VWorld) and to represent efficiently, which is able to improve the quality of spatial information service contents for the public convenience as well as to widen utilization of information.

• Journal of the Korean Association of Geographic Information Studies
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• v.6 no.3
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• pp.21-32
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• 2003

This paper discusses the design of location optimization visualization and feasibility of 3 dimensional visualization techniques. In generic GIS visualization of location analysis, 2 dimensional visualization techniques have been used to map location elements and model solution, such as displaying demand and supply points, drawing connecting lines(e. g. spider line) of optimal locations to their demands, and representing density of location variations. Nevertheless, current GIS and location analysis literatures have little attentions in 3D visualization applications for location optimization problems. Previous research has been neglected 3D visualization of solution performances and its evaluation of solution quality. Consequently, this paper demonstrates potential benefits of 3D visualization techniques and its appropriate GIS applications for location optimization analysis. The visualization effectiveness of 3D approaches is examined in terms of spatial accessibility, and solution performance of optimal location models is evaluated. Finally, this paper proposes extensive 3D visualization perspectives for location analysis and GIS research as a further research agenda.

• Journal of Convergence for Information Technology
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• v.7 no.2
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• pp.125-130
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• 2017

In the business environment of the modern society, it is not possible for the company, which is a producer of accounting information, to provide accounting information to the users of accounting information because it can not satisfy the information demand of the accounting information users due to the problem of information asymmetry. Therefore, the purpose of this study is to find out what information should be provided for satisfying the information needs of users of accounting information. This study investigates the qualitative characteristics of accounting information based on K-IFRS in the provision of accounting information and conducts empirical studies based on the users of accounting information of listed companies and unlisted companies. And how to improve the satisfaction. As a result of empirical research, it was confirmed that the accounting information satisfying the qualitative characteristics is useful for meeting the information needs of users of accounting information.