• 터널과지하공간
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• 제32권4호
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• pp.254-271
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• 2022

본 연구에서는 GMG (Global Mining Guidelines Group)에서 제안한 시간 사용 모델과 핵심성과지표(KPIs)들을 이용하여 트럭 운반작업에 대한 성과를 평가한 결과를 제시하였다. 이를 위해 철과 티탄 철을 주로 생산하는 국내 지하광산을 연구지역으로 선정한 다음 블루투스 비콘과 태블릿 PC를 이용하여 트럭 운반작업 데이터를 수집하였다. 수집된 데이터를 분석하여 트럭 운반작업의 단위작업, 활동 및 이벤트, 소요시간을 식별하였으며, 시간 사용 모델을 기반으로 시간 범주를 분류하였다. 트럭 운반작업의 성과는 가용률, 이용률, 효율성 측면의 9개 성과지표를 이용하여 평가하였다. 그 결과, 가용률 측면에서는 가동시간이 33.9%, 물리적 가용률은 95.7%, 기계적 가용률은 94.9%로 나타났다. 이용률의 경우, 가용장비 이용률은 83.1%, 자산 이용률은 28.1%, 운영 및 유효 이용률은 각각 79.6%, 77.7%로 나타났다. 또한, 효율성 측면에서는 운영 효율성이 97.6%로 높게 나타났으며, 생산 효율성은 49%로 나타났다.

• International Journal of Computer Science & Network Security
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• 제22권10호
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• pp.113-130
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• 2022

Sophisticated automation-based electronics world, more electrical and electronic devices are being used by people from different regions across the universe. Different manufacturers and vendors develop and market a wide variety of power generation and utilization devices under different operating parameters and conditions. People use a variety of appliances which use electrical energy as power source. These appliances or gadgets utilize the generated energy in different ratios. Night time the utilization will be less when compared with day time utilization of power. In industrial areas especially mechanical industries or Heavy machinery usage regions power utilization will be a diverse at different time intervals and it vary dynamically. This always causes a fluctuation in the grid lines because of the random and intermittent use of these apparatus while the power generating apparatus is made to operate to provide a steady output. Hence it necessitates designing and developing a method to optimize the power generated and the power utilized. Lot of methodologies has been proposed in the recent years for effective optimization and economical load dispatch. One such technique based on intelligent and evolutionary based is Black Widow Optimization BWO. To enhance the optimization level BWO is hybridized. In this research BWO based optimize the load for multi area is proposed to optimize the cost function. A three type of system was compared for economic loads of 16, 40, and 120 units. In this research work, BWO is used to improve the convergence rate and is proven statistically best in comparison to other algorithms such as HSLSO, CGBABC, SFS, ISFS. Also, BWO algorithm best optimize the cost parameter so that dynamically the load and the cost can be controlled simultaneously and hence effectively the generated power is maximum utilized at different time intervals with different load capacity in different regions of utilization.

• 한국경제지리학회지
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• 제26권4호
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• pp.443-457
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• 2023

본 연구에서는 홍천군을 사례로 하여 유휴공간의 활용을 통해 지방소도시의 지역재생을 활성화시키기 위한 방안 및 정책적 시사점을 제공하고자 한다. 홍천군은 강원국제예술제 대상지로 선정되면서 그 용도가 문화예술공간으로 변화하였고 지역이 가지고 있는 장소성과 특성을 바탕으로 유휴공간을 활용하여 지역을 활성화 시킨 사례지역이다. 그러나 향후 유휴공간의 효과적 활용과 지역재생을 위해서는 첫째, 유휴공간의 체계적 관리와 활용을 위한 지역자원 조사가 필요하다. 둘째, 유휴공간의 관리 및 운영기반을 구축해야 한다. 셋째, 유휴공간의 특성과 지역여건을 고려한 활용방안을 모색해야 한다. 넷째, 유휴공간의 재생 및 활용 가능성을 고려한 연계사업을 활성화해야 한다.

• 농업과학연구
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• 제22권1호
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• pp.110-126
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• 1995

Korean economy has been developed successfully in the course of implementing the five year economic development plans since 1962. The gap of incomes and quality of life between rural and urban area has been widened and it made rural farm laborers drain to urban areas. Therefore the prevailing situation of labor shortage and wage hike in rural area has made farm management deteriorate in recent years. Under the internal and international unfavorable economic conditions, marginal farm land of 66.5 thousand ha has been idled as of end of 1993. The total area outside agricultural development zone with bad farming conditions including irrigation and drainage, and land consolidation for mechanization were estimated at 360.4thousand ha equivalent to 17.5% of the total farm land area in Korea. Considering the topographical conditions of marginal lands, the effective use of marginal lands should be studied from the view point of public interest rather than from the view point of individual economic conditions. Considering the present agricultural economic settings, such as price decrease, unfavourable benefits of farm products, labour shrotage, free trade of farm products and poor physical condition of marginal lands, the institutional and realistical measures for the effective utilization of idle and marginal land should be studied as soon as possible. Detail land use pattern should be surveyed in the areas outside agricultural development zone and have to be classified as orchard farms, grass land, fish culture farms, lawn and ornamental tree farm, sight seeing and leisure farms for urban peoples, special crops production farms and common farms to be developed for farm mechanization. According to the surveyed results, the expected utilization patterns of the idle and marginal lands could be considerd as village common use, farm land base development, leisure farm development, mutual complementary utilization between urban and rural areas, G't purchase and management, credit supply and new extension services, improvement of cropping patterns and sight seeing and leisure farm patterns. For the successful and reasonable management of the marginal lands, the actions such as institutional improvement, prohibition of idle marginal land, enforcement of activities of farm management committee members and land banking system of RDC including development and utilization systems should be included.

• 한국과학교육학회지
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• 제43권2호
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• pp.99-110
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• 2023

이 연구에서는 중등 과학 예비교사들의 AI 활용 역량 강화를 위하여, 구글의 티쳐블머신을 활용하여 예비교사들이 'AI 기반 분자구조 맞춤형 학습 지원 도구'를 직접 생성해 보는 프로젝트 활동을 개발 및 적용하였다. 이를 위하여, 충청북도 소재 H 대학교 화학교육과에 재학 중인 3학년 예비교사 26명을 대상으로 비교과 활동 시간에 개발된 프로그램을 14차시 동안 적용하였고, 'AI의 작동 원리 이해', '과학 수업에서 AI 활용에 대한 효능감', '과학 수업에서 AI 활용 방안'에 대한 인식을 살펴보았다. 연구 결과, 본 연구에서 개발한 프로그램은 예비교사들에게 머신러닝에 대한 AI 기술의 작동 원리를 기초적 수준에서 이해시키고, 그 사용법을 익히는 데 효과가 있는 것으로 나타났다. 또한 본 연구에서 개발한 프로그램은 과학 수업에서 AI 활용에 대한 예비교사들의 효능감을 높이는 데에도 효과가 있는 것으로 나타났다. 그리고 예비교사들은 학생들의 과학 개념 이해를 도울 수 있는 새로운 교수학습 전략이자 도구로서 AI 기술의 활용 방안 측면을 인식한 것으로 나타났다. 이에 본 연구에서 개발한 프로그램은 기초적 수준에서 예비교사들의 AI 활용 역량 강화 및 인식 개선 등에 긍정적 영향을 미쳤음을 알 수 있었다. 이에 대한 시사점에 대해 논의하였다.

• Journal of the Korean Wood Science and Technology
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• 제40권5호
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• pp.327-334
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• 2012

Wood and concrete show significantly different physical properties, and it need to be firstly understood for using wood-concrete composite. This study is performed for compensating this and effective hybridization of wood and concrete. This research in planned for wood-concrete composite after previous research which deals the shear performance with different anchorage length of steel rebar in wood. Yield mode and reference design value (Z) were derived using EYM (European Yield Model). And the yield mode changed before and after anchorage length of 10~15 mm - $I_s$ mode to IV mode. There was not increasing tendency of shear performance with increased anchorage length for over 20 mm of anchorage in concrete. And wood composite shows 65% and 93% on initial stiffness and yield load respectively compared with the wood-concrete composite. Wood-concrete composite showed brittle failure after yield point while wood-to-wood composite showed ductile failure.

• 한국의료질향상학회지
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• 제12권2호
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• pp.93-112
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• 2006

This study reviewed published studies on interventions used by hospitals, health insurance programs, or governments to improve use of medicines in foreign countries. Interventions to improve use of medicines are classified into two categories: 1) information strategies-dissemination of educational materials, group education, one-to-one educational outreach, drug utilization review, and feedback; 2) managerial strategies- formularies, prior authorization, and financial incentives. Dissemination of educational materials, which is a common intervention, was unsuccessful in changing physicians' prescribing behaviors. Problem-based small group education was more likely to change behaviors than didactic large group education. One-to-one educational outreach(academic detailing) was among the most effective strategies used to change prescribing behaviors. Prospective drug utilization review (DUR) program was more successful in improving use of medicines than retrospective DUR program. Feedback intervention has been reported to be ineffective to change behaviors. Formularies are frequently used to control medication use by most health insurance programs. Financial incentives provide physicians economic incentives according to appropriateness of prescribing. However, few published studies have assessed the efficacy of formularies or financial incentives. Prior authorization requires physicians to get authorization from health insurers before prescribing a certain group of drugs which is usually of high costs or risk. There is no magic bullet for quality use of medicines. Multifaceted interventions that help to predispose, enable, and reinforce desired behaviors are more likely to be successful.

• 보건행정학회지
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• 제17권1호
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• pp.94-124
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• 2007

This paper critically reviews three decades of research on geographic variations. in health services utilization in the United States, thereby drawing policy and research implications for Korea. The recent renewed interest in variations research in the United States, precipitated by studies on regional variations in Medicare expenditures, stems mainly from the policy implication that a substantial amount of Medicare expenditures could be saved without compromising quality and access. From the research perspective, this policy implication was made tenable by integrating micro- and macro-level analysis of variations in health services utilization. Still, theoretical limitations inherent in the research pose great challenges to developing effective strategies at the health system level. Variations research in the United States can serve as a case study as to how health services research has responded to efficiency and quality issues in an ever expanding health system Considering the current health policy and research environment in Korea, the following implications can be drawn. Variations research will help formulate a national policy agenda for health care quality and also advance the framework of approaches to health policy issues. For such purposes, both relevant descriptive and hypothesis-testing studies are needed. Further advancement in variations research will require interdisciplinary explorations and methodological sophistication. To the extent that Korean health policies will strive to achieve complex goals, variations research will increasingly prove to be useful.

• 한국디지털건축인테리어학회논문집
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• 제13권3호
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• pp.51-58
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• 2013

The projects are becoming more complicated and amplified as the design and development technology is advancing. Thus, existing architectural processes and methods are revealing limitations. The technology of BIM is an IT applied to construction, that provides the state-of-the-art tools to overcome these limitations to improve on architectural designing, technology, cost, etc. Therefore, it it necessary to converge the advises and collaboration from the various experts at the initial step in a common processing platform. In this research project with Korean Education Development Institute, configuration and utilization of EDU BIM template is studied because setting an anchor point from the initial phase is necessary for such processes at the perspective of the operator. The purpose of this study is to prevent time consumptions at the initial phase of BIM foundation, to ensure accurate information inputs within the repetitive tasks, and for effective information management that will produce consistent results through utilization of BIM technology.

• 지역사회간호학회지
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• 제22권1호
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• pp.33-44
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• 2011

Purpose: This study examined the characteristics and service utilization of home nursing care beneficiaries under the Korean Long-Term Care Insurance (LTCI). Methods: We used assessment data and claim data of National Health Insurance Corporation from July to August 2008. Data were composed of subjects who were the beneficiaries of home nursing care. Results; A total of 634 subjects were analyzed. Of the subjects, 57.1% were 75 years and over. The average score of nursing care need was only 0.71 and the percentage of those whose nursing care need score was zero was 58.0%. More than half of the subjects had partially dependent musculoskeletal conditions, and 75.5% had two or more comorbidities. A third of them usedonly home nursing care, and another third used both home nursing care and general home care at the same time. Those who needed sore care used the largest home nursing care benefits. Conclusion: Home nursing care of LTCI performs community-based healthcare services under LTCI. Throughout the past two years, however, it has not been active. Understanding the characteristics of its users is important in order to develop effective strategies for activating home nursing care.