• Title/Summary/Keyword: potential applicability

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Reliability and Applicability of Weather Forecasts for Irrigation Scheduling (관개계획을 위한 일기예보의 신뢰성과 활용성)

  • 이남호
    • Magazine of the Korean Society of Agricultural Engineers
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    • v.41 no.6
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    • pp.25-32
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    • 1999
  • The purpose of this study is to analyse the accuracy of weather forecasts of temperature, precipitation probability , and sky condition and to evaluate the applicability of weather forecasts for the estimation of potential evapotranspiration for irrigation scheduling. Five weather station s were selected to compare forecasted and measured climatcal data. The error between forecasted and measured temperature was calculated and discussed. The accuracy of temperature forecast using relative frequency of the error was calculated . The temperature forecasting showed considerably high accuracy. Average sunshine hours for forecasted sky conditions were calculated and showed reasonable quality. From the reliability graphs, the forecasting precipation probabililty was reliable. Potential evapotranspirations were calculated and compared using forecast and measured temperatures. The weather forecast is considered usable for irrigation scheculing.

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Detection of Delamination Crack for Polymer Matrix Composites with Carbon Fiber by Electric Potential Method

  • Shin, Soon-Gi
    • Korean Journal of Materials Research
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    • v.23 no.2
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    • pp.149-153
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    • 2013
  • Delamination crack detection is very important for improving the structural reliability of laminated composite structures. This requires real-time delamination detection technologies. For composite laminates that are reinforced with carbon fiber, an electrical potential method uses carbon fiber for reinforcements and sensors at the same time. The use of carbon fiber for sensors does not need to consider the strength reduction of smart structures induced by imbedding sensors into the structures. With carbon fiber reinforced (CF/) epoxy matrix composites, it had been proved that the delamination crack was detected experimentally. In the present study, therefore, similar experiments were conducted to prove the applicability of the method for delamination crack detection of CF/polyetherethereketone matrix composite laminates. Mode I and mode II delamination tests with artificial cracks were conducted, and three point bending tests without artificial cracks were conducted. This study experimentally proves the applicability of the method for detection of delamination cracks. CF/polyetherethereketone material has strong electric resistance anisotropy. For CF/polyetherethereketone matrix composites, a carbon fiber network is constructed, and the network is broken by propagation of delamination cracks. This causes a change in the electric resistance of CF/polyetherethereketone matrix composites. Using three point bending specimens, delamination cracks generated without artificial initial cracks is proved to be detectable using the electric potential method: This method successfully detected delamination cracks.

Satellite Rainfall Monitoring: Recent Progress and Its Potential Applicability (인공위성 강우모니터링: 최근 동향 및 활용 방안)

  • Kim Seong-Joon;Shin Sa-Chul;Suh Ae-Sook
    • Korean Journal of Agricultural and Forest Meteorology
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    • v.1 no.2
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    • pp.142-150
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    • 1999
  • During the past three decades after the first attempt to use satellite imagery or derived cloud products for rainfall estimation, much is known and understood concerning the scope and difficulties of satellite rainfall monitoring. After a brief general introduction this paper reviews recent progress in this field with special reference to improvement of algorithms, inter-comparison projects, integrative use of data from different sources, increasing lengths of data records and derived products, and interpretability of rainfall results. Also the paradigm of TRMM (Tropical Rainfall Measuring Mission) which is the first space mission(1997) dedicated to measuring tropical and subtropical rainfall though microwave and visible/infrared sensors, including the first spaceborne rain radar was introduced, and the potential applicability to the field of agriculture and water resources by combining satellite imagery is described.

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Evaluation Index of Rural Development for Producing Potential Value of Rural Regions on a Commercial Scale (농촌의 잠재적 가치에 의한 농촌지역개발 평가지표 연구)

  • Suh, Kyo;Lee, Ji-Min;Kim, Han-Joong;Jung, Nam-Su;Cho, Soon-Jae;Lee, Jeong-Jae
    • Journal of Korean Society of Rural Planning
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    • v.9 no.1 s.18
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    • pp.47-53
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    • 2003
  • The purpose of this research was to develop evaluation index of regional development for producing potential values of rural regions besides agriculture on a commercial scale. Rural regions have potential values such as preserved nature and spatial advantages and so on. For regional development, potential values should be synthetically evaluated by objective and standard index for supporting decision. For evaluation of plural functions of rural regions, evaluation index of rural regions was developed based on rural amenity. Applicability of evaluation index was studied using GIS and natural break method.

Development of a Standardized Education Protocol for Peritoneal Dialysis Patients (복막투석 환자를 위한 표준화된 간호교육 프로토콜의 개발)

  • Kang, Jeong-Hee;Kang, Ji-Yeon;Lee, Young-Ock
    • Journal of Korean Critical Care Nursing
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    • v.4 no.2
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    • pp.47-60
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    • 2011
  • Purpose: The purpose of this study was to develop a standardized education protocol for peritoneal dialysis patients. Methods: First, the demand for education was investigated from the 27 patients on peritoneal dialysis and 16 guardians, and later, the standardized nursing education protocol has been developed through the comprehensive literature review and the critical analysis of the related studies. Contents validity and applicability have been tested through the expert group survey. Results: The standardized peritoneal dialysis nursing education protocol with 9 areas and 20 items has been developed. The content validity for timing and duration, contents, method, and place of education proposed by the protocol were all above than 0.8. In terms of the applicability of the protocol, the experts scored between 4.20 to 4.93 for all items except one. The item on home visit education acquired the lowest applicability score, because there might exist potential restrictions in visiting patient's home. Conclusion: The standardized education protocol developed in this study turned out to be adequate by representing high content validity for all items and the applicability also was high except the item on home visit education. Further researches to test the effects of this education protocol should be done.

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Development of a Potential Centrality Evaluation Model for Rural villages ( II ) - Application of model by Survey of villages and Analysis using GIS - (농촌마을의 중심성 평가 모형의 개발 (II) - 자료조사 및 GIS분석을 통한 모형의 적용 -)

  • 김대식;정하우
    • Magazine of the Korean Society of Agricultural Engineers
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    • v.44 no.1
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    • pp.81-92
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    • 2002
  • The purpose of this paper, the 2nd stage of this study. is to test the applicability of the potential centrality evaluation model (PCEM) to a case study area. To verify the practical applicabilities of the PCEM, an administrative area of Ucheon-myeon, Hoengseong-gun, Gangwon-do was selected as a study area. Full data on the human environments of total 72 villages within the study area were surveyed. Data on the natural environments were collected through GIS analysis from digital maps developed far this study. The highest PCI (Potential Centrality Index) score was shown at Uhang village of which one being 841 (total score being 1,000), the real single center village of the study area. The evaluation results on potential centeralities of all the villages in the study area would provide decision-makers with more precised information for selection of center villages for development project.

A Study on the Applicability of Copper Slag as Drainage Material (산업폐기물인 동슬래그의 배수재로서의 활용에 관한 연구)

  • Chun, Byung-Sik
    • Journal of the Korean GEO-environmental Society
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    • v.5 no.4
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    • pp.65-72
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    • 2004
  • Within a country, owing to the restriction of aggregate which have been supplied to construction sites, applicability of byproducts such as the copper slag is expected to be more reasonable. In this study, on the basis of characteristics, grain distribution and environmental stability of copper slag, its engineering application was estimated as the vertical and horizontal drainage material. As a results of laboratory tests, it was shown that the permeability of the copper slag was similar to that of sands under vertical drainage condition. In addition, the copper slag showed higher critical hydraulic gradient than that of sand under upward vertical flow state. The copper slag has potential safety against piping and it that the copper slag is suitable for drainage and filter material.

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The Empirical Ambulatory Care Sensitive Conditions Study & its Potential Health Insurance Applicability in Korea (한국형 ACSC에 대한 실증분석 및 건강보험 적용 가능성에 관한 연구)

  • Kim, Yang Yun;Sung, Joo Ho
    • Health Policy and Management
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    • v.15 no.3
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    • pp.79-93
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    • 2005
  • The purpose of the study is to identify Ambulatory Care Sensitive Conditions (ACSC) and their potential health insurance applicability in Korea, using the correlation and regression analysis with the empirical data provided by Korean Health Insurance Review Agency(KHIRA). Here, ACSC would be thought of as conditions that when timely and effectively treated in the outpatient medical services can help reduce the risk of hospitalizations. As for ACSC, reducing accessibility for outpatient visit results in increasing hospitalization. In this respect, the ACSC concept is popularly adopted as one of the performance indicators of the national health system. As one of main results, fortifying the accessibility to necessary health care in a way of sharing appropriately the role with private health insurance can lead to the efficiency of national health care delivery systems in view of total health care expense, in particular in a case of ACSC children. Lastly, we would like to strongly suggest that the disease treatment data set reported to KHIRA needs to be opened to private insurance companies only for illness experience investigation.

Effects of Rain Gardens on Removal of Urban Non-point Source Pollutants under Experimental Conditions (실험실 조건에서 레인가든의 도시 비점오염물질 제거효과)

  • Kim, Changsoo;Sung, Kijune
    • Journal of Korean Society on Water Environment
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    • v.28 no.5
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    • pp.676-685
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    • 2012
  • As impermeable layer continues to increase with the urbanization process, direct input of nonpoint source pollutants into water bodies via stormwater has caused serious effects on the aquatic ecosystem. Potential applications of rain gardens are increasing not only as best management practices (BMP) for reducing the level of nonpoint source pollutants but also as an ecological engineering alternative for low impact development (LID). In this study, remediation performance of various planting types, such as a mixed planting system with shrubs and herbaceous plants, was assessed quantitatively to effectively manage stormwater and increase landscape applicability. The mixed planting system with Rhododendron lateritium and Zoysia japonica showed the highest removal performance of $76.9{\pm}7.6%$ and $58.4{\pm}5.0%$ for total nitrogen and $89.9{\pm}7.9%$ and $82.4{\pm}5.2%$ for total phosphorus at rainfall intensities of 2.5 mm/h and 5.0 mm/h, respectively. The mixed planting system also showed the highest removal performance for heavy metals. The results suggest that a rain garden with the mixed planting system has high potential applicability as a natural reduction system for nonpoint source pollutants in order to manage stormwater with low concentrations of pollutants and will increase water recycling in urban areas.

Evaluation of Suitable Locations of Green Care Farm Complex According to Spatial Scale (공간규모별 치유농업단지 입지잠재력 평가)

  • Lim, Hye-Ji;Bae, Seung-Jong;Koo, Hee-Dong;Kim, Dae-Sik
    • Journal of Korean Society of Rural Planning
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    • v.27 no.3
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    • pp.93-102
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    • 2021
  • This study was attempted to provide a scientific basis for the problem of location selection by spatial scale for efficient promotion of projects related to green care farm complex. Location potential assessment system in local government scale consists of two major components from demand-side and supply-side consideration. The demand-side aspect considered the characteristics of potential users, while supply-side aspect used total 18 indices over 8 divisions under 3 fields. For the location potential assessment in district scale, total 8 indices under 3 major divisions were considered based on biological, physical, social, and economic environment. The application results of the location potential evaluation system in local government scale(excluding metropolitan cities) showed high location potential in southern Gyeonggi Province and near Busan Metropolitan City. As a result of applying the district-scale location potential evaluation system to Geumsan-gun, Geumsan-eup, Chubu-myeon, and Jewon-myeon have high potential. Further studies to improve the applicability of the developed indices are recommended by enhancing assessment indices, complementing base data, and reinforcing with spatial analysis.