• Journal of The Korean Association For Science Education
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• v.34 no.6
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• pp.523-534
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• 2014

This study aimed to develop collective intelligence (CI) based instructional models for teaching socioscientific issues on the basis of intimate collaboration with science teachers, and to investigate the participating teachers' perceptions on the effectiveness of the instructional models. Adapting the ADDIE model, we suggested three types of SSI instructional models (i.e. generative model, exploratory model, and decision-making model). Generative models emphasized the process of brainstorming ideas or possible solutions for SSI. Exploratory models focused on providing students opportunities to explore various SSI cases and diverse perspectives to understand its controversial nature and complexity. Decision-making models encouraged students to negotiate or develop a group-consensus on SSI through the dialogical process. After implementing the instructional models in the science classroom, the teachers reported that CI-based SSI instructional models contributed to encouraging students' active participation and collaboration as well as to improving the quality of their argument or discourses on SSI. They also supported the importance of developing collective consciousness on the issues in the beginning of the SSI class, providing independent time and space for reflecting on their personal values and opinions with scientific evidence, and formulating an atmosphere where they freely exchanged opinions and feedback for constructing better collective ideas.

• Journal of the Korean Home Economics Association
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• v.40 no.10
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• pp.1-16
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• 2002

본 연구는 한국 영양사를 위한 급식경영관리교육의 필요성을 파악하고, 4년제 식품영양학과에 적용 할 수 있는 능력중심교육 원칙(competency-based education)을 응용한 급식경영관리 교육 모형 개발에 목적을 두고 있다. 본 연구는 각 분야의 급식경영전문가 설문조사$\longrightarrow$영양사 설문조사$\longrightarrow$4년제 대학 식품영양학과 교과과정 검토$\longrightarrow$급식경영관리 교육 모형 개발 등의 순으로 진행되었다. 급식경영전문가 설문조사를 통하여 한국영양사에게 필요한 47개 급식경영관리 수행능력을 결정하였으며, 이를 토대로 영양사 설문조사 (응답자수: 484, 회수율: 65%)에서는 위 수행능력의 중요도와 교육정도에 대한 영양사들의 인식을 알아보았다. 그 결과, 급식경영관리 수행능력이 현재와 미래의 영양사 업무수행에 있어 매우 중요하다고 인식하고 있는 반면, 교육은 불충분하다고 대답하였다. 교육 불충분의 이유로는 급식경영관리 분야의 과목 부족, 실무위주 교육의 부족 등을 지적하였다. 교과과정 검토 결과 61개 과목 중 8과목(13%)만이 급식경영관리와 관련된 과목으로 나타났다. 두 가지 설문조사 결과와 교과과정 검토 결과를 토대로 하여 본 연구에서는 능력중심교육 원칙을 응용한 급식경영관리 교육 모형을 개발하였다. 개발된 교육 모형은 급식경영관리 전문 교육가에 의해 실행 전 평가 및 검토를 거쳤으며, 내용구성, 적용성, 형식 분야의 평가 결과 모든 분야에서 5.0 만점의 평균 4.6점을 획득하여 한국 영양사의 효과적인 급식경영관리 교육과정 개발에 유용하게 쓰일 수 있을 것으로 기대된다.

• Journal of the Korean Society for Library and Information Science
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• v.42 no.4
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• pp.503-532
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• 2008

This study is on information literacy standards and models analysis, which will be used as the source material to measure undergraduates' information literacy. After main areas and items that are analyzed with three standards and two models are proposed, finally item model(proposal) for scale development is proposed. It consists of six main areas and eighteen items. The scale development item model(proposal) proposed in this study will be used as the source material to measure undergraduates' information literacy that will be studied in future.

• Journal of the Korean Society of Hazard Mitigation
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• v.11 no.3
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• pp.1-8
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• 2011

In this study, a wind hazard map over Korea peninsula based on geographical information is developed, which consists of the surface roughness model, the topographical effect model and the homogeneous wind model. The surface roughness model is assessed to evaluate the effect of the surface roughness on the wind field near ground. The topographical effect model is assessed to quantify the effect of the speed-up caused by topology, which is calculated by adopting the topographical effect factor in Korea building code (2005). The homogeneous wind map is created either by a frequency analysis method for meteorological data or a typhoon simulation. The results show that the wind hazard map can be applied to the determination of insurance premium as well as the assessment of loss and damage.

• Journal of Korean Society of Transportation
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• v.8 no.1
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• pp.89-102
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• 1990

본 연구에서는 개별모형(disaggregate model)을 이용한 도시권의 교통수요예측 모형체계의 구축을 최종목적으로 하며, 그때 개인이 1일 중에 행하는 복수의 트립에 관한 의사결정간의 상호관계를 적절히 고려함에 의해, 되도록 개인의 교통행동을 논리적으로 설명함과 동시에 모형의 취급이 용이하도록 논리성과 실용성이 잘 조화된 모형의 구축을 시도하였다. 모형의 체계는 비취업자와 취업자 각각의 1일의 통행행태유형의 선택에 관한 2개의 Sub-model로 구성되어져 있다. 본 논문은 그 Sub-model중의 하나인 비취업자의 1일의 통행행태유형(트립발생, 각 트립의 목적지와 교통수단)의 선택에 관한 개별모형의 개발을 행한 것이다. 본 모형의 특징은 tour별 효용최대화행동가설에 기초를 두어 개인이 1일 중에 행하는 각 트립의 선택행동은 해당트립의 전후에 행해지는 트립들의 선택행동의 영향을 고려하여 의사결정을 하는 것으로 가설을 설정하여 트립간의 상호관련성을 표현하였다. 모형의 구조로서는, 모형의 취급이 보다 용이하도록 tour별 효과최대화를 트립단위의 단계형 모형으로 표현하는 nested logit model형의 수차동시효과최대화 모형을 구축하였다 실제의 도시권에 대한 실증적 검토를 행한 결과, 본 연구에서 개발한 별개모형의 유효성이 확인되었다.

• Asia Marketing Journal
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• v.3 no.3
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• pp.46-70
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• 2001

본 연구는 첨단기술 제품들에서 볼 수 있는 지속적인 기술혁신으로 인하여 새롭게 시장에 진입하는 신규세대 제품과 이전세대 제품들의 동태적 판매량을 묘사하고 예측할 수 있는 모형들을 제시하고 비교·분석하는데 목적이 있다. 본 논문에서는 Bass(1969)의 내구성 소비재에 대한 최초구매 확산모형을 기반으로 하여 개발된 기술적 대체를 반영한 확산모형들, 즉 Norton and Bass(1987), Mahajan and Muller(1996), Jun and Park(1999)의 모형들의 이론적인 틀과 가정들을 비교·분석함으로써 기존 모형과는 변수와 계수의 의미가 다른 모형을 제시하고, 전세계 DRAM 반도체 출하량 자료를 사용하여 모형들 간의 경험적 비교를 행하였다. Jun and Park(1999)이 전세계 DRAM 반도체 출하량 자료에 적용하기 위하여 새롭게 개발한 타입 II 모형(즉 JP2)은 본 연구의 경험적 비교의 결과에 비추어 볼 때 그들의 타입 I 모형이 취한 가정들을 변화시켜서 모형을 구성하는 변수들과 계수들의 의미가 달라진 JPI 모형 또는 Norton and Bass(1987)의 모형(즉 NB1)보다 실제 적용에 있어서 열등할 수 있다는 것을 본 연구는 보여주었다.

• Journal of Wetlands Research
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• v.14 no.4
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• pp.439-455
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• 2012

Coupled wave induced current modeling system(WIC) was developed from combining with the nearshore spectral wave model, SWAN, the wave induced force model, WIF, and the flow model, EFDC. The reasonable results were obtained from WIC modeling system. The ratio of the wave height calculated with respect to refraction and diffraction effects over submerged spherical shoal was occurred approximately 1~5 % errors compared to Goda(2000)'s result. The radiation stress suggested by Longuet-Higgins and Stewart(1960), the stresses due to rollers in breaking waves proposed by Dally and Osiecki(1994), and Kim(2004)'s new spreading approach instead of the previous lateral mixing approach were added to calculate wave induced force. The results of the WIC modeling system show good agreement with Nishimura et al.(1985)'s laboratory measurements and better than Kim(2004)'s 2 dimensional depth averaged numerical computations for a plane beach with detached breakwater. The present flow field computed agrees reasonably well with the measured flow field. The relative merit of WIF model in WIC modeling system is unconditional stable for time increment.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.6
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• pp.2672-2679
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• 2012

The study was done to provide basic data of medical quality evaluation after developing the comorbidity disease mortality measurement modeled on the severity-adjustment method of AMI. This study analyzed 699,701 cases of Hospital Discharge Injury Data of 2005 and 2008, provided by the Korea Centers for Disease Control and Prevention. We used logistic regression to compare the risk-adjustment model of the Charlson Comorbidity Index with the predictability and compatibility of our severity score model that is newly developed for calibration. The models severity method included age, sex, hospitalization path, PCI presence, CABG, and 12 variables of the comorbidity disease. Predictability of the newly developed severity models, which has statistical C level of 0.796(95%CI=0.771-0.821) is higher than Charlson Comorbidity Index. This proves that there are differences of mortality, prevalence rate by method of mortality model calibration. In the future, this study outcome should be utilized more to achieve an improvement of medical quality evaluation, and also models will be developed that are considered for clinical significance and statistical compatibility.

• Journal of Korea Water Resources Association
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• v.38 no.10 s.159
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• pp.895-906
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• 2005

The diversity of observed hydrologic data and the development of geographic information system leads significant progress for developing distributed runoff models in the world. One of the typical examples is TOPMODEL, but the spatial coverage of its application Is limited on small headwater basins. The purpose of this study attempts to overcome its limitation and consequently develops a semi-distributed TOPMODEL. The developed model is composed of two components: a watershed runoff component for a lumped representation of hydrologic runoff process on the catchment scale and a kinematic wave type hydraulic channel routing component lot routing the catchment outflows. The application basin is the $2,703km^2$ upper Soyang dam site and several daily and hourly events are selected for model calibrations and verifications. The model parameters are estimated on 1990 daily event. The model performance on correlation coefficient between observed and computed flows are above 0.90 for the verification events. It is concluded that the developed model in this study can be used for flood analysis in large drainage basins.

• Research in Plant Disease
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• v.22 no.3
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• pp.168-177
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• 2016

A forecast model for estimating the infection risk of bacterial canker caused by Pseudomonas syringae pv. actinidiae on kiwifruit leaves in Korea was developed using the generic infection model of Magarey et al. (2005). Two-way contingency table analysis was carried out to evaluate accuracy of forecast models including the model developed in this study for estimating the infection of bacterial canker on kiwifruit using the weather and disease data collected from three kiwifruit orchards at Seogwipo in 2015. All the tested models had more than 80% of probability of detection indicating that all the tested models could be effective to manage the disease. The model developed in this study showed the highest values in proportion of correct (51.1%), probability of detection (90.9%), and critical success index (47.6%). It indicated that the model developed in this study would be the best model for estimating the infection of bacterial wilt on kiwifruit leaves in Korea. The model developed in this study could be used for a part of decision support system for managing bacterial wilt on kiwifruit leaves and help growers to reduce the loss caused by the disease in Korea.