• Proceedings of the IEEK Conference
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• 2001.06a
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• pp.301-304
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• 2001

This paper presents a system for a billing system that can be used to motet dynamic priority users in IntServ operation over DiffServ network. Our billing system is designed to authentication, accounting, metering using Remote Authentication Dial In User Service (RADUS). we present packet pricing model of three different service classes which is Best, Good, Default service in IntServ operation over DiffServ network. The packet pricing model can present users with prices and charges in a way that encourages efficient network use. In this model, the RSVP is used, which is resource management to QoS routing function in the IntServ network.

• The Journal of the Korea Contents Association
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• v.6 no.3
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• pp.55-62
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• 2006

After the advent of the Ubiquitous environment, the movement for effective information management is progressing vividly. According to this situation, this paper conducts individualized context structure for individual service and also suggests 5W1H and HFC modeling which apply using priority to manage vast context data. Thus this modeling will function as a base model to embody Ubiquitous environment and offer context based service.

• Journal of the Korea Society of Computer and Information
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• v.20 no.7
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• pp.121-127
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• 2015

This study is about establishing the policy direction according to the perception change of the welfare service of the aged. To achieve this goal, this study analyzed the reprocessed result of the survey related to the welfare of the aged among the second and third community social welfare plans of D county, Southern Jeolla Province. The result shows the recipients of the welfare service of the aged have higher perception about spreading the hardware side such as the welfare facility of the aged than about practicing the software policy such as elder care services. It suggests significant implication in deciding the priority of the welfare policy of the aged from now on. But this result is confined in D county, so getting the generalized conclusion needs the comprehensive review toward more broad regions hereafter.

• Journal of the Korea Society for Simulation
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• v.12 no.4
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• pp.61-71
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• 2003

Recently, a matter of the highest priority that the company must do for the satisfaction of customer service is that the company ensure the competitive power throughout the strategic cooperation in the market environment changing rapidly In this situation, one of allied strategies is the supply chain management and the outsourcing is one of the supply chain management strategies. In this paper, the inventory sharing system is introduced as the method to solve two inconsistency problem such as inventory and customer service. This paper also suggests how to increase customer service and to decrease inventory throughout construction of the inventory sharing system among outsourcing companies. For this, we experimented the effect of the inventory sharing system on the supply chain dynamics by using the simulation modeling and analyzed the validity about construction of the inventory sharing system presented in this study. The simulation is designed by Vensim(Process simulation package) and has some feedback loops.

• Proceedings of the IEEK Conference
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• 2002.06a
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• pp.73-76
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• 2002

In this paper, we consider an algorithm for effectively providing data services for mobile users with different levels of priorities in a DS-CDMA system. The priority level of a user is specified by a factor that is a weighting on the instantaneous data throughput of the user. We define tile weighted instantaneous aggregate data throughput and use it to characterize the performance of the prioritized data service. Our prioritized data service is implemented so that the weighted instantaneous aggregate data throughput is maximized via efficient power and spreading gain allocation. We present efficient algorithms for computing tile optimal power and spreading gain allocation.

• Journal of Korean Elementary Science Education
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• v.28 no.2
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• pp.93-104
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• 2009

The purpose of this study was to explore the relationship between pre-service elementary teacher's prior knowledge and processes of observations and hypotheses generation via analysis of descriptive fault patterns during observation, problem generation and hypotheses generation processes. For the purpose of this study, thirty-four undergraduate students were participated and descriptions of participants' responds were analyzed. As the result, four patterns of descriptive fault on the process of generating hypothesis were classified; 1) descriptive fault from the causalities, 2) descriptive fault from repetition of observational facts, 3) descriptive fault from the priority of prior knowledge, and 4) descriptive fault from negation of the observational facts. From the result, the researcher was able to explore the faults caused by pre-service elementary students' prior knowledge through the observational descriptive analysis with hypothetical descriptive analysis.

• Industrial Engineering and Management Systems
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• v.11 no.4
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• pp.339-345
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• 2012

This research aims to formulate a mathematical model and develop an algorithm for solving a location problem in emergency medical service vehicle parking. To find an optimal parking location which has the least risk score or risk priority number calculated from severity, occurrence, detection, and distance from parking location for emergency patients, data were collected from Pratoom sub-district Disaster Prevention and Mitigation Center from October 2010 to April 2011. The criteria of risk evaluation were modified from Automotive Industry Action Group's criteria. An adaptive simulated annealing algorithm with multiple cooling schedules called multi-agent simulated quenching (MASQ) is proposed for solving the problem in two schemes of algorithms including dual agent and triple agent quenching. The result showed that the solution obtained from both scheme of MASQ was better than the traditional solution. The best locations obtained from MASQ-dual agent quenching scheme was nodes #5 and #133. The risk score was reduced 61% from 6,022 to 2,371 points.

• Journal of Navigation and Port Research
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• v.46 no.5
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• pp.392-399
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• 2022

With digitalization accelerated by the 4th industrial revolution, the marine traffic environment is also expected to change rapidly. The purpose of this study was to derive a new service for Aids to Navigation (AtoN) to respond to a new marine traffic environment and suggest service requirements from the perspective of the ship's operator. For this purpose, a survey of ship operators was conducted and IPA analysis was performed. Marine traffic intelligence and information services and Image-based ocean environment information services were deduced as high-priority services from the perspective of ship operators. Thus, the derived results can serve as basic data for developing new AtoN services and determining policy directions.

• Educational Technology International
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• v.24 no.2
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• pp.143-168
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• 2023

This study aims to analyze the perceptions and educational needs of pre-service teachers for the use of Artificial Intelligence (AI) in education. To this end, we collected survey data from 25 undergraduate students who were enrolled in a teacher education college in Seoul. The purpose of the survey was to measure the importance and current performance for instructional AI use based on the technological, pedagogical, and content knowledge (TPACK) framework, and to explore the priority of educational needs using Borich's needs analysis and the Locus for Focus model. The results of the study confirmed that Ethics and TPK competencies are prioritized. Additionally, the results indicated a high demand for practical knowledge that can be implemented in the practice of education. Based on the results, it is necessary to develop a teacher education program that focuses on ethical aspects and teaching strategy competencies in AI-based education.

• Journal of agricultural medicine and community health
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• v.34 no.1
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• pp.34-46
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• 2009

Objectives: This study was conducted to estimate health service weight for resource allocation and performance monitoring using Basic Priority Rating System. Methods: The Health service would be classified according to New Health Plan 2010, and Burden of disease collected from preceding studies. The data of severity of health problem and effectiveness of intervention were collected through the survey of experts' suggestion. The health service weight was estimated in the formula which is Basic Priority Rating System. Results: In the result of analysis, the health service weight of Infectious disease was ranked highest at 58.97% followed by Anti-smoking campaign(14.07%), Hypertension(3.87%), Diabetes mellitus(3.40%), Cancer(2.90%), Cardiovascular-Cerebrovascular diseases(2.86%), Physical activity(2.10%), Moderate drinking(2.07%), Medical examination(1.92%), Mental health promotion(1.72%), Serious mental illnesses(1.62%), Nutrition(1.52%), Oral health promotion(1.15%), Oral diseases(1.10%), Addiction(0.73%). Conclusions: We think the result of this study provides a rational basis for resource allocation and performance monitoring of health service.