• 기술혁신연구
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• 제5권2호
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• pp.126-154
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• 1997

This paper addresses a methodology for monitoring the first phase('92-94') progress and its implication fo Highly Advanced National R&D Projects (HAN or G7 project) in Korea. The authors suggest a three-stage life cycle model for the management of national R&D program; planning stage, implementing & monitoring stage, and evaluating & harvesting stage. The interim evaluation, the main focuses of this paper, is one of the key issues for the effective management of national R&D program at the implementing & monitoring stage. The conceptual framework of the interim evaluation was developed both through reviewing related literature and considering the characteristics of the HAN program. A stepwise procedure of interim evaluation was introduced: 'initial screen' and 'detailed examination'. At initial screen all 11 projects were reviewed in terms of both their relevance and performance in order to decide whether further detailed scrutiny is needed or not. If there exist critical problems on the relevance or on the intermediate progress of each project, it is to be under further detailed examination. Evaluation was initiated by the G7 Planning and Evaluation Committee, which was established for advising, directing, and monitoring the HAN Projects, with the help of large number of experts from industries, universities, and research institutes. The monitoring results were reported to the related ministries and project coordinating agencies, and reflected in the second phase.

• International journal of advanced smart convergence
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• 제7권4호
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• pp.121-127
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• 2018

This paper develops and builds an Integrated Assessment System for National Competency Standard Professional Basic. The integrated evaluation system for basic job competency in the National Competency Standards is developed to conduct examination by means of computers, smartphones and tablet PCs. The system can be used for the basic job competency test, examination for online cyber universities, job competency examination for enterprises, and the listening, reading, and speaking test in the foreign language proficiency examination and is even better in terms of facility investment and saved operating costs as well as efficient use of spaces in comparison with conventional evaluation schemes. Even greater synergy effects can be achieved by providing support for the integrated evaluation system for basic job competency in connection with the NCS qualification system. The evaluation system has been tested and practiced at a specialized high school and can be applied to the NCS education evaluation of the college and four-year college and to the selection examination of new employees of the company.

• Smart Structures and Systems
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• 제24권4호
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• pp.459-474
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• 2019

This study develops a novel recursive algorithm to significantly enhance the computation efficiency of a recently proposed stochastic subspace identification (SSI) methodology based on an alternative stabilization diagram. Exemplified by the measurements taken from the two investigated office buildings, it is first demonstrated that merely one sixth of computation time and one fifth of computer memory are required with the new recursive algorithm. Such a progress would enable the realization of on-line and almost real-time monitoring for these two steel framed structures. This recursive SSI algorithm is further applied to analyze 20 months of monitoring data and comprehensively assess the environmental effects. It is certified that the root-mean-square (RMS) response can be utilized as an excellent index to represent most of the environmental effects and its variation strongly correlates with that of the modal frequency. More detailed examination by comparing the monthly correlation coefficient discloses that larger variations in modal frequency induced by greater RMS responses would typically lead to a higher correlation.

• 한국임상수의학회지
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• 제37권1호
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• pp.9-14
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• 2020

Left atrial enlargement (LAE) is an important diagnostic factor in dogs with myxomatous mitral valve disease (MMVD). It is associated with the onset of congestive heart failure (CHF). Recently, a new radiographic left atrial measurement called vertebral left atrial size (VLAS) was introduced. This can be considered as a left atrial enlargement above 2.3. It appears to be related to the severity of MMVD. However, serial changes in VLAS in relation to disease progression and improvement in patients have yet to be studied. This study aims to assess the value of VLAS as a left atrial size monitoring indicator by examining correlations with VHS, LA/Ao ratio and LVIDDN, and comparing serial changes in dogs. A total of 126 dogs were studied with their owners' consent. The dogs were classified into four MMVD groups (Control, B1, B2, C-D) following the ACVIM Guideline by performing a physical examination, radiography and echocardiography. Besides, 24 and 17 dogs were reevaluated to compare values in relation to the progression and improvement of MMVD. VLAS showed significant increase according to the progress of the MMVD stage. This was the same in the Maltese breed group. A strong positive correlation was found between LVIDDN, VHS, LA/Ao ratio, and VLAS. The results of this study found VLAS to be significantly different according to left atrium size, and there was a correlation between disease progression and VLAS levels in each dog. Therefore, VLAS may be used to detect changes in left atrium size as an additional monitoring index of MMVD.

• 한국태양에너지학회 논문집
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• 제30권3호
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• pp.65-70
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• 2010

As for the present wind power industry, most of the computerization for monitoring and control is based on the traditional development methodology, but it is necessary to improve SCADA system since it has a phenomenon of backlog accumulation in the applicable aspect of back-data as well as in the operational aspect in the future. Especially for a system like offshore wind power where a superintendent cannot reside, it is desirable to operate a remote control system. Therefore, it is essential to establish a monitoring system with appropriate control and monitoring inevitably premised on the integrity and independence of data. As a result, a study was carried out on the modeling of offshore wind power data-centered database. In this paper, a logical data modeling method was proposed and designed to establish the database of offshore wind power. In order for designing the logical data modeling of an offshore wind power system, this study carried out an analysis of design elements for the database of offshore wind power and described considerations and problems as well. Through a comparative analysis of the final database of the newly-designed off-shore wind power system against the existing SCADA System, this study proposed a new direction to bring about progress toward a smart wind power system, showing a possibility of a service-oriented smart wind power system, such as future prediction, hindrance-cause examination and fault analyses, through the database integrating various control signals, geographical information and data about surrounding environments.

• Toxicological Research
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• 제24권4호
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• pp.273-280
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• 2008

The single intratracheal instillation (ITI) of bleomycin (BLM) is a widely used method for inducing experimental pulmonary fibrosis in rat model. In the present study, pulmonary function tests (PFTs) of tidal volume ($V_T$), minute volume ($V_M$), and respiratory frequency ($F_R$) have been applied to study their possibility as a tool to monitor the progress of BLM-induced lung injury in rat model. Rats were treated with a single ITI of BLM (2.5 mg/kg) or saline (control). Animals were euthanized at 3, 7, 14, 21, and 28 days post-ITI. Lung toxicity effects were evaluated by inflammatory cell count, lactate dehydrogenase (LDH) activity in the bronchoalveolar lavage fluid (BALF), and light microscopic examination of lung injury. The PFT parameters were measured immediately before the animals were sacrificed. BLM treatment induced significant cellular changes in BALF-increase in number of total cells, neutrophils, and lymphocytes along with sustained increase in number of macrophages compared to the controls at days 3, 7, and 14. BALF LDH level was significantly increased compared to that in the controls up to day 14. On day 3, infiltration of neutrophils was observed in the alveolar spaces. These changes developed into marked peribronchiolar and interstitial infiltration by inflammatory cells, and extensive thickening of the interalveolar septa on day 7. At 14, 21, and 28 days, mild peribronchiolar fibrosis was observed along with inflammatory cell infiltration. The results of PFT show significant consistencies compared to the results of other toxicity tests. These data demonstrate that the most suitable time point for assessing lung fibrosis in this model is 14 days post-ITI of BLM based on the observation of fibrosis at 14, 21, and 28 days. Further, the progress of lung injury can be traced by monitoring the PFT parameters of $F_R$, $V_T$, and $V_M$.

• Nuclear Engineering and Technology
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• 제56권2호
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• pp.389-401
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• 2024

In recent decades, numerous instances of blockages have been reported in coastal nuclear power plants globally, leading to serious safety accidents such as power reduction, manual or automatic power loss, or shutdown of nuclear power units. Loss or shortage of cooling water may compromise the reliability of the cooling water system, thus threatening the operational safety of power plants and resulting in revenue reduction. This study provides a comprehensive review of the current state of cooling water system safety in coastal nuclear power plants worldwide and the common challenges they face, as well as the relevant research on cooling water system safety issues. The research overview and progress in investigation methods, outbreak mechanisms, prevention and control measures, and practical cases of blockages were summarized. Despite existing research, there are still many shortcomings regarding the pertinence, comprehensiveness and prospects of related research, and many problems urgently need to be solved. The most fundamental concern involves understanding the list of potential risks of blockages and their spatially distributed effects in surrounding waters. Furthermore, knowledge of the biological cycles and ecological habits of key organisms is essential for implementing risk prevention and control and for building a scientific and effective monitoring system.

• Journal of Nutrition and Health
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• 제50권6호
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• pp.664-678
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• 2017

문헌 고찰을 통한 국내외 나트륨 정책 현황 및 나트륨 섭취량, 서울시에서 진행되고 있는 나트륨 섭취 감소 프로그램의 분석, 국민건강영양조사에서의 서울 시민을 대상으로 한 나트륨 섭취 추이, 인구학 사회경제적 특성 및 나트륨 섭취와 관련된 식행동에 따른 나트륨 섭취량 자료분석, 전문가 안면 타당도 평가 결과를 통한 서울시 나트륨 섭취 저감화 계획 목표 재설정 및 프로그램 우선 순위와 대상자 선정은 다음과 같다. 나트륨 저감화 전략에 따른 각 국가의 나트륨 섭취 감소율을 분석한 결과 전년도 대비 약 1.0 ~ 2.0%씩 감소하였고 우리나라의 경우 5.3%의 감소율을 보였다. 따라서 본 연구에서 제시하는 서울시 나트륨 섭취 저감화 정책 목표는 연간 나트륨 섭취량 감소율 2.7%와 서울시 나트륨 저감화 사업의 확대 계획을 고려하여 2.0%로 연간 감소율을 적용하는 것으로 하여 2020년에는 약 3,600 mg의 나트륨 섭취량을 목표로 재설정하였다. 서울시에서 수행하고 있는 나트륨 감소를 위한 프로그램을 생태학적 프레임에 적용하여 분석한 결과, 전반적으로 생태학적 프레임에서 제안하고 있는 개인적, 사회적 환경, 물리적 환경, 거시적 환경 수준들이 프로그램에 포함되고 있었으나 각 프로그램들은 대상자에 따라 수준별로 연계가 되어 있지 못하였고, 주로 단편적이고 산발적으로 진행되고 있었다. 또한 각 자치구별로 공통되고 표준화된 프로그램은 없었다. 따라서 선택과 집중을 기반으로 하여 대상자별로 각 수준들이 연계되어 표준화된 프로그램이 필요한 것으로 나타났다. 프로그램 우선순위 대상자는 성별에서는 여자보다 남자에서, 연령대에서는 30 ~ 50대 성인, 소득수준에서는 저소득층이었고, 나트륨 섭취와 관련된 식행동 중에서는 과일 섭취량이 적은 군이 전반적으로 나트륨 섭취량이 높은 특성을 가져 과일 섭취에 대한 식행동 변화가 중요한 것으로 나타났다. 나트륨 섭취 감소를 위한 프로그램 분석, 서울시 나트륨 섭취 현황 및 고 나트륨 섭취 대상자 특성 분석, 전문가 대상 안면 타당도 평가 결과를 바탕으로 서울시 나트륨 감소를 위한 프로그램 우선순위 대상자는 성인 남성으로서 프로그램의 전략 방향은 생태학적 프레임을 적용하여 이들이 주로 생활하는 생활 터인 직장, 가정, 음식점에서의 나트륨 섭취 환경 개선을 위한 프로그램들을 수준별로 연계하여 진행하는 것으로 제안하였다. 따라서 가정과 음식점에서는 성인 남성의 나트륨 섭취에 영향을 줄 수 있는 주부와 조리 종사자도 프로그램 주요 대상자로 선정 되었다. 본 연구에서는 제안된 나트륨 섭취량의 목표치와 중재 프로그램에 대한 우선순위는 지속적인 모니터링과 효과평가를 통하여 업데이트가 되어야 할 것이다. 향후 생태학적 프레임에 적용된 나트륨 섭취 감소 프로그램의 효과에 대한 전반적인 평가가 필요할 것으로 사료되며 나트륨 섭취 저감화 정책 및 프로그램의 지속성과 효과적인 수행을 위해서는 타 기관 및 부서에서 수행되고 있는 관련 프로그램과의 연계와 협의 체계가 마련되어야 할 것이다.