• Journal of KIISE:Computing Practices and Letters
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• v.15 no.4
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• pp.294-298
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• 2009

In this study, we proposes the method to improve the quality of the image through the edge extraction more delicately. Our method is named ESII(Edge Sensitive Image Interpolation) and doesn't use the fixed parameter of the interpolation kernel. However, it changes the parameter of pixel which is interpolated to the high definition image using the proper information from the surrounding pixels. It reconstructs the image by using the LSE(Least Square Error) and determining the pixel values to make the CME(Camera Modelling Error) minimized. Compared to the conventional methods, suggested method shows the higher quality of subjective and objective image definition and lessons the computational complexity by separating the image into 1-D data.

• YAKHAK HOEJI
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• v.50 no.6
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• pp.415-420
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• 2006

The purpose of this study was to develop the best methods to sterilize herbal medicines which is frequently used and known to have high susceptibility to microbial contamination. We used dry heat, gamma irradiation and alcohol gas treatment for sterilization, and evaluated these methods in terms of the followings; i) the efficacy of sterilization, and ii) the chemical alteration of index constituents of herbal medicines. Treatment with dry heat effectively eliminated the contaminated microorganisms, and did not significantly alter the content of berberine chloride, paeoniflorin and amygdalin in Phellodendron Bark, Peony Root and Apricot Kernel, respectively: However it seriously changed the color and morphology which are essential criteria to estimate a measure of quality of herbal medicines. Treatment with gamma irradiation showed a strong sterilizing effect, and no alteration of the content of index constituents, color and morphology: Alcohol gas treatment resulted in similar effects as those in gamma irradiation. Collectively; these results suggest that treatment with gamma irradiation or alcohol gas may be useful methods for sterilizing herbal medicines without a decrease in their microbial quality.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.39 no.1
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• pp.79-84
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• 1994

Sweet corn hybrid GCB 70 and super sweet corn hybrid NES were cultivated at vinyl tunnel in 1991 to determine the physiologically optimum harvest time for higher eating quality and sugar contnent of kernel by eat parts after silking and stored in refrigerator of 4$^{\circ}C$ and in the air. The development of ear increased continuously from silking to 30th day after silking, and sugar content was the hightest on 15th day after silking. The physiologically optimum harvest time for GCB 70 and NES was about 15~20th day and 20~25th day after silking, respectively. The sugar content of kernel by ear parts for two hybrids were high in order of basal, middle and top parts of the ear and showed significant differences among the parts of the ear. Changes of total sugar content during the storing period at 4$^{\circ}C$ for NES was almost the same by 9th day, but for GCB 70 rapidly decreased from 3rd day. The content of sucrose, glucose and fructose in super sweet corn NES were much higher than those of sweet corn GCB 70, but the maltose content of NES was lower than that of GCB 70.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.24 no.4
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• pp.71-82
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• 1979

Transparent vinyl-mulching cultivation plots heavy-fertilized (6-14-20 kg $10a^{-1}\; of\; N-P_2O_5-K_2O)$ in growing peanuts produced 315-344Kg $10a^{-1}$ of quality kernels through improvement of the low temperature conditions of underground environment during the early growing stage and kernel-filling stage. The yields of which were 82-99 percent higher than that of conventional cultivation plot. The vinyl-mulching cultivation techniques accelerated emergence, young seedling growth, flowering, pod bearing and kernel filling of peanuts in Korea.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.37 no.3
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• pp.177-188
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• 2019

Recently, citizens are feeling anxious as 'Motiveless Crime' increases. The quality of citizens life is degraded and the degree of crime fear is increasing. In this study, based on various variables related to crime other than actual crime occurrence status, crime occurrence points (point line polygon) felt by citizens are created by using mental map methodology. And the purpose of this study is to derive the area of concern for crime through spatial overlap analysis using kernel density estimation analysis. It also uses spatial overlay analysis using kernel density estimation to derive areas of concern for crime occurrence. As a result, the local residents' request point and the areas of concern for crime were overlapped. In addition, the mental map indicating the fear of crime was constructed by mapping mainly the areas between the facilities, the non-construction area such as the narrow area, the security CCTV, the streetlight. This study is meaningful in that it tried to derive a crime occurrence concern area by using mental map method unlike the previous study related to crime. The results of this study, such as mental map, could be used in various fields such as construction of fragile crime map, guideline of crime prevention through environment design.

• Journal of Advanced Marine Engineering and Technology
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• v.33 no.2
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• pp.344-354
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• 2009

Side scan sonar using acoustic wave plays a very important role in the underwater, sea floor, and shallow marine geologic survey. In this study, we have acquired side scan sonar data for the underwater man-made structures, artificial reefs and fishing grounds, installed and distributed in the survey area. We applied digital image processing techniques to side scan sonar data in order to improve and enhance an image quality. We carried out digital image processing with various kinds of filtering in spatial domain and frequency domain. We tested filtering parameters such as kernel size, differential operator, and statistical value. We could easily estimate the conditions, distribution and environment of artificial structures through the interpretation of side scan sonar.

• Journal of the Korean Society of Food Science and Nutrition
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• v.23 no.5
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• pp.816-821
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• 1994

The physicochemical properties and cooking qualities of six cultivars of covered barley, four malting barley and six naked barley were investigated. The 1, 000 kernel weight was heavier in the malting barley and ash content was the highest in covered barley. The varietal variation of amylose content was 17.7 to 20.2%. $\beta$-Glucan viscosity was generally lower in the malting barely, and varied greatly among barley cutivars with 2.16 to 8.47 cSt. The pearling rate was highest in naked barley with a mean of 75.5% and protein content of aw and pearled barely was significantly different with cultivars. In the cultivars tested, Doosan 8, Youngsan and Iri 5 showed the higher milling rate. Amylose patterns showed that the covered barley cultivars has lower gelatinization temperature and higher peak height and height at 50 $^{\circ}C$ than the malting and naked barley. The water absorptions were highest in covered barley cultivars , and lowest in naked barley cultivars. The soluble solid was highest in naked barley cultivars.

• Proceedings of the Korean Nuclear Society Conference
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• 2004.10a
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• pp.1047-1048
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• 2004

Simulation Coated layers of a nuclear fuel particle were evaluated by field emission scanning electron microscopy and nano-indentation method to give basic data to estimate 'Amoeba effect' and give an optimum fabrication condition and high quality control. Coated layers on the fuel kernel are in the order of buffer pyrolytic carbon, inner pyrolytic carbon, silicon carbide and outer pyrolytic carbon layers, which average thicknesses are 95, 25, 30 and 28 ${\mu}m$, respectively. Their densities and hardnesses are 1.08, 1.15, 3.18, 1.82 $g/cm^3$ and 0.522, 0.874, 9.641, and 2.726 GPa, respectively. Comparing theoretical density of pyrolytic carbon of 2.22 $g/cm^3$, the relative amount of porosity in each layer is about 52% for buffer, 48% for inner PyC and 18% for outer PyC.

• Journal of Biosystems Engineering
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• v.35 no.3
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• pp.197-205
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• 2010

An automatic echelon feeder of brown rice was presented for quality inspection system using color image processing. A echelon feeder was developed with vibratory feeder and cylindrical indent singulator having oblique light. The vibratory feeder consisted of a hopper, electromagnetic vibrator and multichannel grooves and supply the grain sample to the singulator. The feeding performance such as feed rate, blocking frequency of the channel was dependent on the size of groove and vibration pattern. A cylindrical indent singulator consisted of a rotating cylinder, prisms and a tungsten-halogen light source. It delivered grain kernels under the camera in a echelon form and illuminate the kernels with oblique ray and ambient light. The size of the indents installed on the surface of the rotating cylinder was determined by the dimensions of the paddy and a small triangular prism was placed in each indent to apply $ 20^{\circ}$ oblique light to the grain kernel.

• Proceedings of the Korea Contents Association Conference
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• 2011.05a
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• pp.15-16
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• 2011

로봇사업은 전 세계적으로 급속히 성장하고 있는 분야로 미국, 유럽 등 많은 국가들이 막대한 자본을 투자하고 있으며, 우리나라에서도 차세대 전략 산업으로 선정하여 집중적으로 지원하고 있다. 현재 로봇 시스템 및 서비스의 복잡도가 증가함에 따라 소프트웨어의 개발비용, 인력, 유지보수 등의 문제를 해결하기 위해 OPRoS(Open Platform For Robotic Service)라는 로봇 소프트웨어 플랫폼이 개발 되었다. 하지만 OPRoS 실행엔진은 범용 운영체제 위에서 동작되기 때문에 로봇서비스의 QoS(Quality of Service)를 위한 실시간성을 보장하지 못한다. 본 논문에서는 범용운영체제인 윈도우즈 상에서 동작하는 로봇 소프트웨어 플랫폼인 OPRoS의 실행엔진에 RTiK(Real-Time implanted Kernel)을 이용해 실시간성을 보장할 수 있는 방법에 대해 연구 하였다. 또한 RTiK이 이식된 OPRoS 실행엔진의 성능을 측정하였다.