• 한국의학물리학회:학술대회논문집
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• 한국의학물리학회 2002년도 Proceedings
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• pp.407-410
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• 2002

Monochromatic x-ray CT has several advantages over conventional CT, which utilizes bremsstrahlung white x-rays from an x-ray tube. There are several methods to produce such monochromatic x-rays. The most popular one is crystal diffraction monochromatization, which has been commonly used because of the fact that the energy spread is very narrow and the energy can be changed continuously. The alternative method is the use of fluorescent x-ray, which has several advantages such as large beam size and fast energy change. We have developed a parallel-beam and a fan-beam monochromatic x-ray CT, and compared some characteristics such as accuracy of CT numbers between those systems. The fan beam monochromatic x-rays were generated by irradiating target materials by incident white x-rays from a bending magnet beam line NE5 in 6.5 GeV Accumulation Ring at Tukuba. The parallel beam monochromatic x-rays were generated by using a silicon double crystal monochromator at the bending magnet beam line BL-20BM in Spring-8. A Cadmium telluride (CdTe) 256 channel array detector with 512mm sensitive width capable of operating at room temperature was used in the photon counting mode. A cylindrical phantom containing eight concentrations of gadolinium was used for the fan beam monochromatic x-ray CT system, while a phantom containing acetone, ethanol, acrylic and water was used for the parallel monochromatic x-ray CT system. The linear attenuation coefficients obtained from CT numbers of those monochromatic x-ray CT images were compared with theoretical values. They showed a good agreement within 3%. It was found that the quantitative measurement can be possible by using the fan beam monochromatic x-ray CT system as well as a parallel beam monochromatic X-ray CT system.

• 유통과학연구
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• 제13권6호
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• pp.97-104
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• 2015

Purpose - The distribution of agricultural products is changing due to recent shifts in environmental free trade. Specifically, the competitiveness of domestic agricultural products has weakened as a result of the Korea-China Financial Trade Agreement. Agricultural producers are faced with increasing difficulties and organized production centers are growing in importance daily. To overcome this crisis, agricultural producer organizations are vying for environment-friendly agricultural certifications, Good Agriculture Practices (GAP) and Hazard Analysis and Critical Control Point (HACCP). In particular, as consumer demand for higher safety grows, farmers are increasing their certification rates. Therefore, this certification system is expected to help strengthen the competitiveness of agricultural producer organizations. Research design/data/methodology - Organized production centers are classified by certification. A survey was conducted with 91 organizations using factor analysis and logistic regression analysis for the examination. The factor analysis results are as follows. Raw material procurement, education·specialization, marketing, joint business, organizing ability, business management, effectiveness, certification, and larger organizations were classified as the nine types of factors. These factors affect the organized production centers and are used in the logistic regression analysis. The purpose of such research and analysis is to suggest a direction for future production center policies. Results - The basic statistical results are as follows: analysis of the producer organizations of 91 sites, average number of members per site of 1,624, and average sales of 25,961 million won. Additionally, the average income per farmer is 175 million won, and the pooling system rate is 53.5%. The factor analysis results are as follows. Factor 1 consists of contract cultivation, ongoing shipment, selection subdivision, traceability, and major retailer management. Factor 2 consists of manual cultivation, specialty selection, education program, and R&D. Factor 3 consists of advertising, various dealers, various sales strategies, and a unified sales counter. Factor 4 consists of agricultural materials co-purchase, policy support, co-shipment, and incentives. Factor 5 consists of the co-selection and pooling system. Factor 6 consists of co-branding and operating by the organization's article. Factor 7 consists of the buy-sell ratio and rate of operation of the agriculture promotion center. Factor 8 consists of bargaining power in volume and participation rate of farmer certification. Factor 9 consists of increasing new subscribers. The logistic regression analysis results are as follows. Considering the results by type of certification, the environment-friendly agricultural certification type and the GAP certification type have a (+) influence. GAP and HACCP certification types affecting the education·specialization factor have a (+) influence. Considering the results for each type of certification, the environment-friendly agricultural certification types on the effectiveness factor have (-) influence; the HACCP certification types on the organizing ability and effectiveness factor have a (-) influence. Conclusions - Agricultural producer organizations should develop plans as follows: The organizations need to secure education for agricultural production; increase the pooling system ratio for sustainable organizational development; and, finally, expand the number of agricultural producer organizations.

• 한국병원경영학회지
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• 제19권1호
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• pp.32-42
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• 2014

It is necessary to calculate prime cost of medical services accurately in order to evaluate the adequacy of medical fee. This paper aims to identify cost analysts' perception on prime cost of medical services and needs in establishing a cost accounting system in hospitals, proposing future directions and guidelines for the calculation of medical fee. A self-administered questionnaire and telephone survey on operation of a hospital cost-accounting system was conducted in November, 2012, among cost analysts currently working in the hospitals and hospital administrators planning to implement the hospital cost-accounting system. Our study shows that most of the cost analysts were aware of the importance of calculating prime cost and responded that collection of the prime cost data from government is necessary although they are less likely to provide the data in the future concerning the risk of data misuse and data security. They also responded that lack of budget allocation and excessive workload were the main reasons for not estimating the prime cost and operating cost management information system. Results show that hospital cost analysts considered the data accuracy is the most critical factor in calculating prime costs of medical services. However, there was no investment budget allocated in some hospitals or limited to less than 100 million, indicating that hospitals are reluctant to invest on implementing the cost accounting system. Respondents stated the organization that collects the prime cost of medical services among hospitals should display strong analytical capabilities, ensure data security, and maintain independence, which is most demanded. There are 57 hospitals that calculated the prime cost of medical services for 2012 by each medical department and 20 hospitals that calculated the prime cost by fee-for-services, aiming to establish a cost accounting system. Our results indicate that hospitals should voluntarily provide the accurate prime cost for medical services in order to properly evaluate the adequacy of medical fee. Consequently, it is critical to establish an independent organization to collect and appraise the data. It is also recommended that government should implement various policies to encourage hospitals to participate in the data collection to achieve the data accuracy and representativeness.

• 디지털융복합연구
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• 제16권11호
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• pp.221-230
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• 2018

기업의 창업가들과 경영자들은 글로벌 대기업들에 의해 지배되고 있는 산업들에서 성공하기 위해 필요한 규모 및 능력을 달성하기 위해서 협력업체들과의 확장된 네트워크를 잘 이용할 줄 알아야 한다는 사실을 목격하게 된다. 기업의 경영자들은 간소하지만 민첩한 기업을 만들고자 한다면, 그들은 어떻게 기업의 조직구조 모델이 운영효율성, 유연성에 영향을 미치게 되는지, 그리고 어떻게 기업 조직을 기업환경과 전략(기회와 위협을 감지하고 대응할 수 있는)에 맞게 조정해야 하는지를 이해해야 한다. 본 연구는 요즘처럼 빠르게 변하고 불확실한 기업 환경에서 생존하고 번창할 수 있는 기업을 만들기 위해 필요한 역량들을 검토한다. 본 논문에 제시된 것 들은 빠르게 변하는 글로벌 경제의 수요에 대처하려 했던 수백 명의 경영자들과 기업창업자들의 지난 20년 동안의 노력의 결과들이다[1]. 본 연구의 결과는 정보기술(IT)이 기업의 성공을 위해 필요한 역량 및 조직구조를 개발하는데 있어서 필요한 가이드라인을 제공한다. 본 연구는 계량적인 연구 모델을 제시하지 못하는 한계점을 가지고 있으나, 최근의 정보기술 환경에서 기업들이 조직의 구조를 설계하는데 있어 고려해야할 점들과 지침을 제공하는 것이 연구의 목적이다.

• 한국산업정보학회논문지
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• 제14권4호
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• pp.163-182
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• 2009

전략적 성과관리체계인 BSC(Balanced Scorecard)는 조직 성과향상을 위한 혁신적 도구로서 주목받아 오고 있다. 최근 몇 년간 정부는 BSC의 장점을 인식하고 공기업들이 BSC를 구축하여 조직을 혁신하고 성과를 극대화하도록 유도해왔다. 그러나 많은 공기업들의 경우 BSC 고유의 특성과 장점에 대한 충분한 공감대를 확보하지 못하고 기존의 평가 제도나 조직 문화의 특성으로 인해, 효과적인 BSC 구축 및 BSC 성과의 극대화에 어려움을 겪어오고 있다. 따라서 본 연구에서는 공기업 중 성공적으로 BSC를 도입한 것으로 평가를 받고 있는 한국남부발전(주) 사례를 분석함으로써, 공기업이 BSC를 구축할 때 수행해야 하는 활동 및 절차, 필요 자원(인력, 시간), 주요 의사결정 이슈 등을 실제 산출물과 함께 제시하였다. 이와 같은 프로젝트 세부 사항들은 공공기관 또는 비영리 기관들이 BSC를 구축하는 데 유용한 가이드라인으로 활용될 수 있을 것으로 기대된다. 또한, 본 사례 기업이 BSC 구축과정에서 겪은 문제점에 대한 극복 노력과 이를 기반으로 도출한 시사점들은 BSC를 구축하고 운영하는 다른 조직들에게 유용한 경험 지식과 통찰력을 제공해 줄 수 있을 것으로 기대된다.

• 한국직업건강간호학회지
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• 제11권2호
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• pp.108-120
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• 2002

This study analyzed the managerial efficiency of 11 organizations, the branch centers of a occupational health service organization in Korea, using the Data Envelopment Analysis (DEA) method. The DEA is a good method for evaluating health services since it can handle multiple inputs and outputs simultaneously, and also identify the sources and amount of inefficiency. The author approached this study using two efficient models: the monetary value model and the real value model. The DEA method based on the monetary value model included cost factors, while the real value model excluded cost factors. The input variables used were manpower of physicians, medical technicians, nurses, industrial hygienists and administrators; labor, maintenance, and material expenses. The output variables used were the number of medical examinations, workplace evaluations, group health management services and income from each service. The major results were as follows: First, in the monetary value model, 6 out of 11 organizations (54.6%) showed an efficiency score of 1.0, which means that they have been operating in very efficient ways. However, 5 organizations (46.4%) showed themselves to be relatively inefficient. Second, in the real value model, 7 out of 11 organizations (63.4%) showed an efficiency score of 1.0, which means they have been operating efficiently, while 4 organizations (46.4%) showed themselves to be relatively inefficient. Third, the reliability of DEA method were analyzed by comparing the results of the monetary value model and real value model. The results of 8 out of 11 organizations were same in terms of being efficient or not. Thus, the DEA could be a valid application method for occupational health service organizations. Fourth, the organizations that displayed common inefficiency in both the monetary value model and in the real value model 3, 9, and 10, were also considered to be managed inefficiency from expertise opinion. In summary, this study evaluated the efficiency of occupational health service organizations applying the DEA method with different variables, and found that the results of analysis could be valid in terms of both modeling and expert sense. In the future, the DEA method will be used as a useful tool to identify and evaluate the efficiency of occupational health service organizations through more applications and refinements.

• 한국도서관정보학회지
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• 제46권3호
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• pp.51-70
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• 2015

이 연구의 목적은 부산광역시 대표도서관인 부산대표도서관의 조직과 효율적인 운영 방안을 제시하는 것이다. 부산대표도서관은 '부산광역시 차원의 거점 도서관', '정책도서관이자 연구도서관', '부산학 도서관' 등 복합적 성격을 갖는 도서관으로 그 성격을 규정하였으며, 부산대표도서관의 5대 핵심 기능은 도서관정책 수립, 지원협력, 자료보존, 정보서비스, 행정지원이다. 부산대표도서관의 기능과 역할의 원활한 수행을 위해서는 도서관정책과, 지원협력과, 자료보존팀, 정보서비스과, 행정지원과 등의 4과 1팀의 운영 조직이 필요하며, 관장은 3급 또는 개방형 직급으로, 각 과장은 4급 또는 5급으로, 그리고 팀장은 5급 또는 6급의 직급으로 제안하였다. 부산대표도서관의 최소 필요 인력은 기반조성단계에서 행정직 10명, 사서직 31명, 전산직 2명 등 모두 43명의 인력이, 정착단계에서는 각각 12명, 44명, 5명 등의 61명이 필요할 것으로 산출되었으며, 연간 운영 예산은 인건비 1,527,360천원, 자료구입비 735,000천원, 기타 운영비 2,130,000천원 등으로 연간 4,392,360천원의 예산이 필요할 것으로 추정되었다.

• Journal of Biosystems Engineering
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• 제43권1호
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• pp.72-80
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• 2018

Purpose: A modern greenhouse consists of various Information and Communications Technology (ICT) components e.g., sensor nodes, actuator nodes, gateways, controllers, and operating softwarethat communicate with each other. The interoperability between these components is an essential characteristic for any greenhouse control system. A greenhouse control system could not work unless the components communicate via common interfaces. The TTAK.KO-06.0288 is an interface standard consisting of four parts. Notably, TTAK.KO-06.0288-Part3, which describes the interface between a greenhouse operating system (GOS) and a greenhouse control gateway (GCG), is the core standard of TTAK.KO-06.0288. The objectives of this study were to analyze the TTAK.KO-06.0288-Part3 standard, to suggest alternative solutions for identified issues, and to develop a library as a proof of the alternative solutions. Methods: The "data field" was analyzed using a comparative analysis method, since it is a data transmission unit of TTAK.KO-06.0288-Part3. It was compared with other parts of TTAK.KO-06.0288 in terms of definition, format, size, and possible values. Although TTAK.KO-06.0288-Part1 and TTAK.KO-06.0288-Part2 do not use a "data field," they have a similar data structure. That structure was compared with the "data field" of TTAK.KO-06.0288-Part3. Results: Twenty-one issues were identified across four categories: inter-standard issues, intra-standard issues, operational issues, and misprint issues. Since some of the issues can raise interoperability problems, 16 alternative solutions were suggested. In order to prove the alternative solutions, an open-source communication library called libtp3 was developed. The library passed 14 unit tests and was adapted to two research. Conclusions: Although TTAK.KO-06.0288-Part3 is an interface standard for communication between a GOS and a GCG, it might not communicate between different implementations because of the identified issues in the standard. These issues could be solved by the alternative solutions, which could be used to revise TTAK.KO-06.0288. In addition, a relevant organization should develop a program for compatibility testing and should pursue test products for smart greenhouses.

• 과학교육연구지
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• 제38권2호
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• pp.317-330
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• 2014

본 연구에서는 운영방식이 다른 영재교육 기관의 보조교사 활동에 참여한 예비교사의 영재교육에 대한 인식을 분석하고자 하였다. C지역의 대학부설 과학영재교육원과 교육청 지원 기숙형 영재교육원의 보조교사 활동에 참여한 예비교사 74명을 대상으로 설문 조사를 하였고, 분석된 결과를 바탕으로 7명을 심층 면담하였다. 연구 결과, 학기 중에 이루어지는 두 영재교육원 간의 교육 분야, 교육 일정, 교육 방법의 차이에 따라 보조교사의 영재성과 영재교육 담당 교사의 자질에 대한 인식이 다르게 나타났다. 대다수 보조교사는 주요 역할인 수업 관찰에서 어려움을 가장 많이 느끼며 이와 관련된 체계적인 연수의 필요성을 제안하였다. 영재교육 현장에서 장기간의 실제적 지도 경험을 가진 보조교사의 영재교육에 대한 인식을 바탕으로 영재교육을 위한 예비교사 훈련 방법에 대한 개선책을 찾아보고 영재교육원의 운영 방향을 재조명하고자 하였다.

• 한국재난정보학회 논문집
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• 제9권4호
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• pp.503-510
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• 2013

최근 기후변화로 국지성 집중호우가 증가하고 있으며 이로 인한 산사태 발생도 증가하고 있는 추세이다. 또한 도시주거지역에서 발생한 산사태로 인하여 인명 및 재산피해가 증가하고 있다. 그러나 이러한 산사태를 대비하기 위한 표준매뉴얼은 작성되어 있지 않으며, 산림청에서 작성한 예방 대응 행동매뉴얼도 미흡한 실정이다. 이에 본 논문에서는 산사태 발생 및 피해 특징을 알아보고 방재 관련 전문가들을 대상으로 산사태 대비 SOP 작성을 위해 산사태 SOP 필요도와 활용도를 조사하였으며 활용 시 문제점을 알아보았다. 또한 산사태 주요 세부항목의 중요도를 알아보고, 산사태 SOP 활용을 위한 요구사항을 조사하였다. 조사결과는 대부분의 전문가들이 산사태 SOP의 필요도는 높다고 응답하였으나 활용도는 낮았으며 산사태 SOP 활용시의 문제점은 다양한 피해상황의 미반영과 기관의 역할별 재난관리 단계별 규정의 어려움이 나타났다. 또한 산사태 SOP 작성 시 주요 세부항목 중요도에서는 산사태 발생에 따른 비상대응계획, 대피 및 행동요령에 대한 지침, 산사태 재난 대비 훈련 및 교육, 산사태 재난 방송 실시 및 정보 제공에 대한 절차 수립, 유관기관 및 민간단체와의 협조 및 지원체계 등이 가장 중요하다고 응답되었다. 마지막으로 산사태 SOP 활용을 위한 요구사항은 이를 사용할 수 있는 전문 인력의 확충, 법 제도적 강화, SOP 습득을 위한 교육 및 훈련 등 2차적인 요소에 대한 중요성이 나타났다.