• 한국수학교육학회지시리즈E:수학교육논문집
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• 제26권3호
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• pp.317-338
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• 2012

본 연구는 교사들이 생각하는 좋은 수학 수업을 알아보기 위해 4개의 대영역(교육과정과 교육내용, 교수 학습, 교실환경 및 수업 분위기, 평가)과 48개 하위 요소로 구성된 설문지를 이용하여 초등학교 교사 223명과 중학교 수학 교사 151명의 반응을 비교 분석하였다. 분석 결과 초등 교사는 대영역 중 교육과정과 교육내용 영역을, 중등 교사는 교수 학습 영역을 가장 중요하게 생각하였다. 세부 요소 별로 살펴보면, 초 중등 교사는 공통적으로 자기주도적 학습 능력을 신장시키는 수업, 학생 수준에 맞게 교육과정을 재구성하여 실시한 수업, 학생과 교사간의 상호작용이 잘 이루어지는 수업 등을 좋은 수학 수업이라고 생각하였다. 그러나 초등 교사는 좋은 수학 수업과 관련된 23개 요소에 대해서 중등 교사보다 더 중요하다고 인식하였으며, 중등 교사는 수학적 표현 능력을 신장시키는 수업, 동기 유발이 잘 이루어지는 수업의 2개 요소에 대해서만 초등 교사보다 유의미하게 더 중요하다고 인식하였다. 이러한 연구 결과를 토대로 우리나라 본연의 좋은 수학 수업에 대한 교사의 인식 및 이에 따른 시사점을 논의하였다.

• 환경영향평가
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• 제18권5호
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• pp.257-270
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• 2009

The central government in Korea has pursued a policy to privatize municipal solid waste treatment facilities in order to enhance the effectiveness of public financial management in recent years. To understand the intentions of local governments on this policy, the survey with questionnaires on 37 out of 256 local governments was made in October, 2007. The results were analyzed and compared in 6 classified policy areas. The results showed that local government had enough financial status to operate the facilities with proper services and had the opinion with positive management in finance with increasing rate of prospective views. Among the facilities operated by local governments, the satisfaction levels for landfill(46.2%) and incineration(40.0%) were relatively higher. However those for recycling and food waste resource facilities were not satisfied with showing lower rate of satisfaction. The priority of privatization in consideration among them were following in order of food waste resource plants(76.2%), incinerators(63.6%), and recycling facilities(53.9%) and the most considerable reason to privatize them was due to resolve financial problems(59.7%). They thought and expected that the privatization would provide cost reduction effects in local governments and also be easier to achieve the environmental goals. To enhance such privatization, expanding more incentives by central government would be essential as shown in the investigation of this survey.

• 상하수도학회지
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• 제33권6호
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• pp.421-428
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• 2019

This study developed an evaluation system of adaptation countermeasures for climate change in the water resources sector using the Analytic Hierarchy Process (AHP), and the assessment procedures were applied to the Second Chungcheongnam-do Climate Change Adaptation Implementation Plan (Chungnam Implementation Plan). Firstly, the evaluation criteria are composed of two levels according to the hierarchical structure, and AHP gives priority to 4 evaluation criteria of the first level and 16 alternative indicators of the second level. Secondly, after the importance of the evaluation criteria or indicators has been determined, the significance of each measure was evaluated by applying it to the water-sector measures of the Chungnam Implementation Plan, and the effectiveness of the evaluation system was validated. The Chungnam case study shows that the evaluation system will be more effective and efficient when it is applied during development phase rather than after the implementation plan is finalized. It is also expected that the evaluation system will be used to evaluate and prioritize climate change adaptation policies in other regions, and then to compare the means of adaptation to climate change in various regions and to select recommendation policies.

• 한국콘텐츠학회논문지
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• 제10권1호
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• pp.94-102
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• 2010

오늘날의 핸드폰, PMP, 지능형 가정기기, 자동차 엔진 컨트롤 시스템과 같은 내장형 시스템은 인간의 삶과 일, 놀이 등 살아가는 환경에 대한 전환을 가져오고 있다. 사용자가 요구하는 다양한 서비스들을 지원하기 위해 내장형 시스템 응용들의 복잡성이 증가하고 있으며, 그런 내장형 컴퓨팅 플랫폼에는 시간결정성을 갖는 실시간 운영체제를 사용해야 한다. 이런 실시간 운영체제의 커널 서비스들은 각 서비스 수행에 얼마만큼의 시간이 소요되는지를 명세하여 시간결정성을 보장하면서 작은 실행 이미지 크기를 가져야만 한다. 이런 정보를 토대로, 응용 개발자들은 각 태스크가 마감시간을 준수하도록 하는 실시간 응용 소프트웨어를 설계할 수 있다. 본 논문에서는 추가적인 메모리 오버헤드 없이 2r 레벨의 우선순위를 갖는 시스템에서 다차원 기법을 이용하여 고정상수 시간 내에 최상위 우선순위를 결정하는 완전 일반화된 실시간 스케줄링 알고리즘을 제안한다.

• 한국환경보건학회지
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• 제40권5호
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• pp.397-406
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• 2014

Objectives: Perchloroethylene (PCE) is a volatile chemical widely used as a solvent in the dry-cleaning and textile processing industries. It was evaluated as Group 2 "probably carcinogenic to humans" by the Integrated Risk Information System (IRIS) of the United State Environmental Protection Agency (U.S. EPA) in 2012. In order to provide a scientific basis for establishing risk management measures for chemicals on the national priority substances list, aggregate risk assessment was conducted for PCE, included in the top-10 substances. Methods: We conducted the investigation and monitoring of PCE exposure (e.g., exposure scenario, detection levels, and exposure factors, etc.) and assessed its multi-media (e.g., outdoor air, indoor air, and ground water) exposure risk with a deterministic and probabilistic approach. Results: In human risk assessment (HRA), the level of human exposure was higher in the younger age group. The exposure level through inhalation at home was the highest among the exposure routes. Outdoor air or uptake of drinking water represented less than 1% of total contributions to PCE exposure. These findings suggested that the level of risk was negligible since the Hazard Index (HI) induced by HRA was below one among all age groups, with a maximum HI value of 0.17 when reasonable maximum exposure was applied. Conclusion: In conclusion, it was suggested that despite low exposure risk, further studies are needed considering main sources, including occupational exposure.

• 서비스연구
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• 제7권2호
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• pp.53-66
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• 2017

본 연구는 국내 금융서비스 담당자 중 방카슈랑스를 대상으로 교육을 실시하는 교육전문가들을 대상으로 방카슈랑스 업무를 수행하는 담당자들이 업무를 수행하는데 필수적이라고 인식하는 역량은 무엇이고 특히 그 중에서 업무의 성과와 관련하여 중요하다고 인식하고 있는 역량이 무엇인지를 탐구하였다. 이를 위해 문헌연구, 1차 워크숍, 2차 워크숍을 진행하고, 역량전문가를 대상으로 추가 워크숍을 수행하여 방카슈랑스 담당자에게 필요한 역량은 무엇인지를 도출하였다. 또한 마지막으로 방카슈랑스 담당자를 대상으로 설문을 실시하여 연구결과의 타당성을 높였다. 최종적으로 성취지향성, 영향력, 제안력, 대인이해, 전문성, 관계형성, 호감도관리, 주도성, 감정절제, 자기개발, 성찰적자기확신, 문제해결, 자기주도적 업무수행, 정보수집활용, 계획수립, 개념적사고, 긍정적 자아 인식의 17개의 역량명과 역량 정의가 도출되었으며, 이 역량 중 담당자들의 육성을 위해 필요한 중요도 조사 결과, 성취지향성, 영향력, 제안력, 관계형성, 자기개발 등의 역량이 주요 역량을 인식되고 있음을 확인하였다. 본 연구를 통해 도출된 역량모델을 통해, 방카슈랑스 담당자들에게 필요한 핵심역량과 그 내용을 기반으로 현장에서 해당 업무를 성공적으로 수행할 수 있는 인력을 채용하고 육성하는데 활용될 수 있을 것이라 기대된다.

• 한국건설관리학회논문집
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• 제5권2호
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• pp.136-143
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• 2004

본 논문은 초기 건설공사의 리스크 관리방법론을 제시한 것으로서, 리스크식별 및 분석을 중심으로 연구를 진행하였다. 리스크식별은 초기 건설공사를 $공통공사\cdot토공사\cdot지정$ 및 기초공사로 구분하여 리스크를 규명하고 작업분류체계에 기반하여 리스크분류체계를 제안하였다. 리스크분석은 리스크분류체계를 바탕으로 퍼지추론을 이용하여 리스크인자의 위험도를 정량화하고 퍼지척도를 이용하여 리스크인자의 중요도를 산정하였으며, 이를 통합하여 상위 리스크인자의 종합위험도를 구하기 위해 퍼지적분을 이용하였다. 리스크인자의 관리 우선순위는 종합위험도로부터 결정할 수 있다. 본 연구에서 제시한 리스크 관리 방법론의 타당성을 확인하기 위하여 사례적용을 실시하였으며, 그 결과 제시한 방법론이 현장 및 공사의 특성을 반영하여 리스크인자의 관리 우선순위를 결정하는데 충분히 활용할 수 있음을 확인할 수 있었다.

• 산경연구논집
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• 제10권4호
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• pp.43-56
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• 2019

Purpose - The purpose of this study is to classify the quality factors of chicken restaurant customers with the service quality based on the SERVQUAL, the quality factors based on the selection attributes and service qualities of chicken restaurants used in the previous studies. Research design, data, and methodology - This survey was carried out on the students of Kangwon University in Samchuk City, Kangwon Province from November 20 - November 30, 2017, and a total of 260 questionnaires were distributed, with 222 collected. Of them, effective questionnaires applied in the final study were a total of 193 except 29 that couldn't be used. Results - The findings of this study are as follows: Firstly, chicken restaurants' quality factors were divided into seven categories like cleanliness, service encounter quality, product quality, aesthetics, overall interior, purchase quality, and convenience. Secondly, it showed that service encounter quality, purchase quality, and cleanliness had a positive impact on customer satisfaction, respectively. Thirdly, it showed that service encounter quality, purchase quality, and cleanliness had a positive impact on trust, respectively. Fourthly, it showed that customer satisfaction had a positive impact on behavioral intention. Additionally, it suggested that customer satisfaction of chicken restaurant consumers had a positive impact on behavioral intention and thereby, higher customer satisfaction leads to higher levels of reuse and recommendation intention. Lastly, after checking the effect relations of trust between customer satisfaction about chicken restaurant and behavioral intention, it was analyzed that customer satisfaction has a positive impact on trust and trust has a positive impact on behavioral intention. On the other hand, it showed that trust have a partially mediating effect in the relations between customer satisfaction and behavioral intention. But, it showed that product quality, aesthetics, overall interior, purchase quality, and convenience did not have a positive impact on customer satisfaction. Conclusions - Chicken restaurant consumers put more priority on friendly and good services of chicken restaurant staff in service encounter and delivery order, rather than on reasonable price and discount systems. Thereby, chicken restaurant marketers need to take factors like service encounter quality, cleanliness into more consideration.

• 한국산업보건학회지
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• 제29권3호
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• pp.375-382
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• 2019

Objectives: This study was to examine the features of work and posture analysis outputs in assessment of exposure to musculoskeletal disorder (MSD) risk factors in general hospital nurses. Methods: Work and posture analyses were carried out using observational approaches for nurses at general hospitals across Korea. With development of a taxonomy for assessing exposure to MSD risk factors, nursing tasks were documented in frequency (%time) for 8 hours a day in work analyses. Rapid Entire Body Assessment (REBA) scores were obtained for mode and maximum risk levels, respectively, during posture analyses. Results: A total of 27 nurses were observed while conducting 7 nursing tasks at 6 general hospitals. For both the work analyses and posture analyses, the taxonomy was developed and used. In the work analyses, 'Video display terminal task' and 'Nursing examination/ treatment' were the highest as 25%time for 8 hours a day, followed by 'Patient care' and 'Room rounding' as 13%time in order. In the posture analyses, the mode REBA scores were 2 or less for all nursing tasks while the maximum REBA scores were 7 for upper limbs at 'Room rounding' and 6 for trunk/neck/legs at 'Patient care'. Conclusions: The results showed the study nurses are occasionally at a risk for MSD, a medium level as designated in the REBA risk level, suggesting that it is important to control awkward posture at the nursing tasks such as 'Room rounding' and 'Patient care', in priority, for preventing MSD in the hospital sector including the study general hospitals.

• 산업경영시스템학회지
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• 제38권4호
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• pp.159-167
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• 2015

We consider a wafer lot transfer/release planning problem from semiconductor wafer fabrication facilities to probing facilities with the objective of minimizing the deviation of workload and total tardiness of customers' orders. Due to the complexity of the considered problem, we propose a two-level hierarchical production planning method for the lot transfer problem between two parallel facilities to obtain an executable production plan and schedule. In the higher level, the solution for the reduced mathematical model with Lagrangian relaxation method can be regarded as a coarse good lot transfer/release plan with daily time bucket, and discrete-event simulation is performed to obtain detailed lot processing schedules at the machines with a priority-rule-based scheduling method and the lot transfer/release plan is evaluated in the lower level. To evaluate the performance of the suggested planning method, we provide computational tests on the problems obtained from a set of real data and additional test scenarios in which the several levels of variations are added in the customers' demands. Results of computational tests showed that the proposed lot transfer/planning architecture generates executable plans within acceptable computational time in the real factories and the total tardiness of orders can be reduced more effectively by using more sophisticated lot transfer methods, such as considering the due date and ready times of lots associated the same order with the mathematical formulation. The proposed method may be implemented for the problem of job assignment in back-end process such as the assignment of chips to be tested from assembly facilities to final test facilities. Also, the proposed method can be improved by considering the sequence dependent setup in the probing facilities.