• 농업기술회보
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• v.47 no.6
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• pp.20-21
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• 2010

• KOMUNHWA
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• no.50
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• pp.161-187
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• 1997

• Journal of architectural history
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• v.29 no.1
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• pp.7-20
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• 2020

This paper is a review of the construction process, craftsmanship, architectural economy of Bungang Seowon through the Changwon Ilgi(diary). The Bungang Seowon, which was built in the early 18th century, was initially built as a shrine, but was later completed as a seowon upon the decision of the scholars. It was the descendants of Nongam and the Hyanggyo, Seowon, and the government offices that provided economic, human and material support to the construction of Seowon. The small building of Bungang Seowon was run by a civilian carpenter, while the large building was run by a monk carpenter. The mobilization of the building workers was done by local scholars assigning the number of workers needed for each village.

• Journal of the Korean Institute of Traditional Landscape Architecture
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• v.32 no.2
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• pp.95-105
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• 2014

Dosangugok is located at Dosan-myeon, Andong City, Gyeongbuk and its original landscape was analyzed based on Valley4 Buncheon among Dosangugok. In order to estimate original landscape of Dosangugok, landscape elements were extracted after investigating ancient literatures including 'Nongamjib' and poetry/prose relevant to Dosangugok, landscape elements that could be confirmed at local site survey were suggested and arrangement of Buncheon village was estimated based on painting works. In analysis of poetry/prose, 29 landscape elements were extracted and as a result of local site survey, 6 places including Jeomam (Jari-bawi), Nongam (Gwimeok-bawi), Sajaseok (Saja-bawi), Sangam (Elephant rock), Dae and Bungang were confirmed to be existed at present and in painting works, Rocks such as Aeildang on the rock adjacent to Bungang, Buncheon Seowon at its backyard village, Bungang Byeoneui Gwimeokbawi, Jeomam were confirmed to be expressed even though not expressed in detail. Survey was performed based on ancient site of Nongam head house in parallel with interview with 17th eldest grandson(Ph.D. Lee, sung won)of Nongam Lee, Hyeon Bo and local site survey and original landscape was reproduced by making its result as a drawing and preparing an estimated map around this area.

• The Mathematical Education
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• v.48 no.2
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• pp.191-206
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• 2009

In this study, we investigate the effects of the methods of time allocation in lecturing on the mathematical academic achievement of freshmen in institute of technologies. The subjects are 392 freshmen from three universities participated in ABEEK(Accreditation Board for Engineering Education of Korea). They belong to three groups in accordance with the methods of time allocation in lecturing; 75 minutes twice a week(79 students) and 150 minutes continuously once a week(77 students) (university 1 of 156 students), 100 minutes twice a week(56 students) and 200 minutes continuously once a week(60 students) (university 2 of 116 students) and 50 minutes and 100 minutes separately once a week(62 students) and 150 minutes continuously once a week(58 students) (university 3 of 120 students). The results of this paper are summarized as follows: Firstly, the achievement of separate time-allocation groups is higher than that of continuous time-allocation groups. Secondly, the achievement of middle class students and low class students has higher effects when they are taught by using the methods of separate time-allocation in lecturing. Finally, the achievement of groups using 75 minutes twice a week is higher than that of using 50 minutes and 100 minutes separately once a week. In conclusion, this study suggests that the method of separate time allocation in lecturing using 75 minutes twice a week could be an advisable means to help those who achieve middle and low scores in the first college mathematics.

• Journal of Biomedical Engineering Research
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• v.19 no.5
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• pp.477-486
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• 1998

In this paper, we implemented the urine analysis system capable of measuring a qualitative and semi-quantitative and assay using strip. The analysis algorithm of urine analysis was adopted a fuzzy logic-based classifiers that was robust to external error factors such as temperature and electric power noises. The spectroscopic properties of 9 pads In a strip were studied to developing the urine analysis system was designed for robustnesss and stability. The urine analysis system was consisted of hardware and software. The hardware of the urine analysis system was based on one-chip microprocessor, and Its peripherals which composed of optic modulo, tray control, preamplifier, communication with PC, thermal printer and operating status indicator. The software of the urine analysis system was composed of system program and classification program. The system program did duty fort system control, data acquisition and data analysis. The classification program was composed of fuzzy inference engine and membership function generator. The membership function generator made triangular membership functions by statical method for quality control. Resulted data was transferred through serial cable to PC. The transferred data was arranged and saved be data acquisition program coded by C+ + language. The precision of urine analysis system and the stability of fuzzy classifier were evaluated by testing the standard urine samples. Experimental results showed a good stability states and a exact classification.

• Journal of Korea Water Resources Association
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• v.47 no.4
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• pp.371-384
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• 2014

This study developed a new algorithm of extreme rainfall extraction based on the Communication, Ocean and Meteorological Satellite (COMS) and the Tropical Rainfall Measurement Mission (TRMM) Satellite image data and evaluated its applicability for the heavy rainfall event in July-2011 in Seoul, South Korea. The power-series-regression-based Z-R relationship was employed for taking into account for empirical relationships between TRMM/PR, TRMM/VIRS, COMS, and Automatic Weather System(AWS) at each elevation. The estimated Z-R relationship ($Z=303R^{0.72}$) agreed well with observation from AWS (correlation coefficient=0.57). The estimated 10-minute rainfall intensities from the COMS satellite using the Z-R relationship generated underestimated rainfall intensities. For a small rainfall event the Z-R relationship tended to overestimated rainfall intensities. However, the overall patterns of estimated rainfall were very comparable with the observed data. The correlation coefficients and the Root Mean Square Error (RMSE) of 10-minute rainfall series from COMS and AWS gave 0.517, and 3.146, respectively. In addition, the averaged error value of the spatial correlation matrix ranged from -0.530 to -0.228, indicating negative correlation. To reduce the error by extreme rainfall estimation using satellite datasets it is required to take into more extreme factors and improve the algorithm through further study. This study showed the potential utility of multi-geostationary satellite data for building up sub-daily rainfall and establishing the real-time flood alert system in ungauged watersheds.