• 컴퓨터교육학회논문지
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• 제12권4호
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• pp.1-11
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• 2009

프로그래밍 교육을 위한 다양한 연구가 진행되고 있다. 본 연구는 문제해결력 향상을 위해 교수 학습 모형을 기반으로 동료 에이전트를 개발하였다. 문제해결력에 대한 하위 요소를 학습내용 이해, 문제해결 전략, 자기조절 영역으로 구분하였고, 문제해결력 하위 요소에 대한 프로그래밍 교수 학습 방법을 제시하였으며, 교수학습 모형을 수행할 수 있도록 동료 에이전트를 개발하였다. 개발된 동료 에이전트 시스템의 교육적 효과를 살펴보기 위하여 프로그래밍 수업에 적용한 결과, 전통적 수업 방식이나 동료 프로그래밍 수업 방식에 비해 문제해결력 하위 요소에서 긍정적인 효과를 보였다. 이는 동료 에이전트가 학습자의 문제해결력을 향상시키는데 교육적 효과가 있음을 의미한다.

• 산업경영시스템학회지
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• 제25권5호
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• pp.1-8
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• 2002

The sales activity of most of small manufacturing companies is based on orders of buyers. The process of promotion, receipt and selection of orders of the manufacturers is closely coupled with the load status of the production lines. The decision on whether to accept an order or not, or the selection of optimal order set among excessive orders is entirely dependent on the schedule of production lines. However, in the real world, since the production scheduling activity is mainly performed by human experts, most of small manufacturers are suffer from being unable to meet due dates, lack of rapid decision on the acceptance of new order. To cope with this problem, this paper deals with the development of an agent for selecting an optimal order set automatically. The main engine of selection agent is based on the typical job-shop scheduling model since our target domain is the injection molding company. To solve the problem, we have formulated it as IP (Integer Program) model, and it has been successfully implemented by ILOG and selection agent. And we have suggested an architecture of an agent for tackling web based order selection problems.

• 한국멀티미디어학회논문지
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• 제5권5호
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• pp.562-570
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• 2002

본 논문은 인트라넷 관리자가 웹 환경에서 인트라넷의 상황을 쉽게 분석할 수 있도록, 관리자의 요구에 따라 일별, 주별, 월별, 연도별로 인트라넷의 구성관리, 성능관리, 장애관리에 대한 현황을 일괄적으로(또는 선택적으로), 자동으로 생성되게 하는 방법에 관한 것이다 본 연구의 특징은 웹을 기반으로 하여 분산 환경에서 개방형 통신망(TINA) 체계의 인트라넷 관리 보고서를 자동 생성할 수 있다는 것이다. 즉 코바(CORBA) 환경에서 사용자 에이전트(User Agent)에만 접속할 수 있게 함으로써 인트라넷 관리 시스템을 보호하고, 관리 시스템 접속 부분의 프로그램에 변경이 생기더라도 사용자 에이전트 프로그램만 수정하면 되므로 유지 보수가 용이한 구조이다.

• 한국학교ㆍ지역보건교육학회지
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• 제7권
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• pp.75-85
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• 2006

This study was conducted to prepare information about foodborne disease outbreaks by year, eating place, etiological agent, area, and type of school lunch program. In the study, the reported data was reviewed, but only the data during recent five years were mainly analyzed because of data shortage.

• 한국화재소방학회논문지
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• 제29권5호
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• pp.51-56
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• 2015

본 연구에서는 설계프로그램의 공학적 분석의 수단 또는 가치공학 측면에서 원가절감 등의 목적으로 최적설계 이론과 공학적 이론을 접목시킨 최적설계법을 가스계 소화설비 중 청정소화약제 소화설비의 약제방출량 산출에 응용하였다. 청정소화약제 소화설비의 설계이론과 최적설계 이론을 바탕으로 약제방출량을 최적화시킬 수 있는 최적설계인자를 도출하였고, 이를 설계인자로 구축된 소화설비의 소화성능시험으로 최적설계법의 적합성 여부를 검증함으로써 다른 소화설비에도 최적설계법을 접목할 수 있는 기틀을 마련하였다. 방출헤드의 약제방출량 최적화는 방출헤드 및 배관의 내경, 약제도달시간, 유량과 압력변화 등의 소화약제 유동특성에 대한 제한조건에 의해 결정됨을 확인하였고, 방출헤드의 방출압력과 약제도달시간의 편차는 배관의 압력변화만큼 발생되고 상관관계가 있음을 알 수 있었다.

• 대한안전경영과학회지
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• 제14권3호
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• pp.159-166
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• 2012

A*algorithm is highly useful to search the shortest route to the destination in the evacuation simulation. For this reason, A*algorithm is used to evaluate the evacuation experiment by the computer simulation. However there are some problems to analyze the outcome in relation to the reality. Because all the people in the building are not well-informed of the shortest route to the exit. And they will not move to the disaster spot though it is shortest route to the exit. Therefore, evacuation simulation program based on A*algorithm raise a problem of bottleneck phenomenon and dangerous result by damage surrounding the disaster spot. The purpose of this research is to prove the necessity for dispersion evacuation simulation by Multi agent system to solve the problems of the existing evacuation simulation program based on A*algorithm.

• 열처리공학회지
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• 제36권1호
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• pp.33-39
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• 2023

In this study, the effect of mixing condition of raw material powders possessing various particle size and particle size distribution on thermite reaction efficiency was investigated. When fine raw powders are used, rather the reaction yield tends to decrease due to agglomeration. In contrast, coarse raw powders make deteriorate the contact area between raw material powders containing Al reducing agent. To ensure the optimal thermite reaction efficiency, it is required to optimize a mixture condition of raw material powders prior to thermite reaction. From the current experiment, the maximum thermite reaction efficiency is 77%, which came from Nb₂O₅ + NiO +Al mixtures with size distribution from 9.25 to 22.63 ㎛.

• 보건교육건강증진학회지
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• 제29권1호
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• pp.1-11
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• 2012

Objectives: The nurse visiting health service named Customized Visiting Health Care Program(CVHCP) requires the service innovations incorporating community support into a local service network. The purpose of this study was to assess the community network in CVHCP and inform improvement in this network. Methods: We used Social Network Analysis(SNA) in one CVHCP at H city. Network links were generated by self-administered questionnaires by the 14 community resource centers who quantified their links to all other 25 agents on the list. Links were analyzed by a dichotomous scale for any experience of collaboration and a scored scale of 0 to 3 for level of collaboration using UCINET v6. Results: A list of 14 agents was generated, and local network was dominated by the Public Health Center and a local welfare center named Unlimited Care Center(UCC). According to centrality score, UCC was the most prominent agent, and Public Health Center was the most influential agent, being a link in the pathway flow between other agents for 9.5% of contribution. CVHCP scored lower rank of prominent with 30.8% of other agents reported referring to it. Conclusions: Social network analysis provides a useful network description for informing and evaluation service network improvement in maximizing its service for the CVHCP.

• 한국산업경영시스템학회:학술대회논문집
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• 한국산업경영시스템학회 2002년도 춘계학술대회
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• pp.237-242
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• 2002

The sales activity of most of small manufacturing companies is based on orders of buyers. The process of promotion, receipt and selection of orders of the manufacturers is closely coupled with the load status of the production lines. The decision on whether to accept an order or not, or the selection of optimal order set among excessive orders is entirely dependent on the schedule of production lines. However, in the real world, since the production scheduling activity is mainly performed by human experts, most of small manufacturers are suffer from being unable to meet due dates, lack of rapid decision on the acceptance of new order. To cope with this problem, this paper deals with the development of an agent for selecting an optimal order set automatically. The main engine of selection agent is based on the typical job-shop scheduling model since our target domain is the injection molding company. To solve the problem, we have formulated it as IP (Integer Program) model, and it has been successfully implemented by ILOG and selection agent. And we have suggested an architecture of an agent for tackling web based order selection problems.

• 한국주조공학회지
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• 제30권6호
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• pp.241-246
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• 2010

The viscosity of foam metal is necessary to get the pores, but it is difficult to manufacture net-shape foam, because the fluidity decreases by increasing viscosity. In this study, the A356 alloy which has good fluidity and less defect was selected and fabricated to foam metal. To understand about effect of thickening agent on foaming and mechanical properties, quantity of thickening agent was changed. The pore size, porosity and distribution of foam metal were measured by i-solution program. And compression test were performed by UTM. In case of 3.0wt% Ca in thickening agent, it is found that most of foam consist of homogeneous shape, and the growth height had the highest value of 204 mm in the all fabricated foams. The porosity was 93% and compressive strength was 3.1 MPa. In the microstructure, the $Al_2Si_2Ca$ intermetallic compound and Ti were observed. The vickers hardness value rose with increasing viscosity value.