• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2007년도 Proceedings of ISRS 2007
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• pp.215-218
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• 2007

Recently, information-oriented whole domain and scientific management method for nation-wide territory is widly being used due to the remarkable development such as GIS and RS. In addition to this, request for analyzing forest spatial information has been increasing to manage forest resources efficiently. Although forest information using satellite image and GIS has been built to analyze a large amount of forest information scientifically, there are many difficulties to gather information because normally forest area is large and difficult to access.. This research uses high resolution satellite and digital aerial photograph around Kyungju city area to classify forest area, and stratifies forest area through a spot survey and a comparison of sample area. It will be possible for us to draw a more detailed map of forest area than 1/25000 map of forest area through these works.

• 대한수학회논문집
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• 제12권3호
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• pp.679-683
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• 1997

We obtain new upper bound of the area of a constant breath curve. We estimate the area of a constant breadth curve in terms of its breadth and minimal radius and the arc length of its pedal curve.

• 대한수학회보
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• 제44권1호
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• pp.103-108
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• 2007

In this paper, we obtain some lower bounds for area of non-simply connected compact singular surfaces of nonpositive curvature. One inequality involves systole and area of the surface.

• Journal of Preventive Medicine and Public Health
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• 제26권3호
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• pp.321-331
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• 1993

This survey was conducted to investigate Farmers' Syndrome and its related factors in Chonnam province. 5,920 (men 6,148, women 6,722) persons in urban area and 12,870 (men 6148, women 6,722) persons in rural area were selected in stratified cluster sampling manner, and interviewed individually with structured questionnaire in April, 1992. The results were summarized as follows : 1 In rural area of Chonnam province, the prevalence of Farmers' syndrome positive was 283 per 1,000 persons (203 in male, 355 in female). In urban area of Chonnam province, control area, the prevalence of Farmers' syndrome positive was 113 (72 in male, 145 in female). The prevalence of Farmers' syndrome positive in rural area was 2.5 times higher than that of urban area, and the prevalence in female was 1.7 times higher than that of male. The prevalence in total respondents was 256. 2. In rural area of Chonnam province, the age standardized prevalence of Farmers' syndrome positive was 209 per 1,000 persons (140 in male, 267 in female). In urban area of Chonnam province, control area, the age standardized prevalence of Farmers' syndrome positive was 122(79 in male, 158 in female). The age standardized prevalence in total respondents was 194. 3. The associated factors with Farmers' syndrome in univariate analysis were having illness during recent 15 days, age, sex, occupation, area, monthly income, education, medical security status, family size and duration of farming. 4. When applying multiple logistic regression for Farmers' syndrome, the significant variables were having illness during recent 15 days, area, sex, age, education, medical security status, family size and duration of farming.

• Environmental Sciences Bulletin of The Korean Environmental Sciences Society
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• 제2권2호
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• pp.135-138
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• 1998

This area is plant-geographically located at the Temperate Subtropical Zone and Evergreen Broad Leaf Zone which is included in the sea of southern area of the Korean Peninsula. The Japanese black pine is the most common tree in this area. The sorts of trees that are living in this area Camellia, Alder, Oak, Acorn. It is reported that this area is located at the Evergreen Broad Leaf Zone of Korean Peninsula that is living in the southern sea. The construction place was originally a grassy place. About 40 familly 100 species different plants were living at this area. The most common animals were the Rodents and the most common birds were the Colombiformes.

• 한국멀티미디어학회논문지
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• 제17권8호
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• pp.915-922
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• 2014

We propose an adaptive zoom motion estimation method where a picture is divided into two areas based on the distance information with a depth camera : the one is object area and the other is background area. In the proposed method, the zoom motion is only applied to the object area except the background area. Further, the block size of motion estimation for the object area is set to smaller than that of background area. This adaptive zoom motion estimation method can be reduced at the complexity of motion estimation and can be improved at the motion estimation performance by reducing the block size of the object area in comparison with the conventional zoom motion estimation method. Based on the simulation results, the proposed method is compared with the conventional methods in terms of motion estimation accuracy and computational complexity.

• 한국농공학회논문집
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• 제58권6호
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• pp.79-92
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• 2016

The objective of this study is to classify the types of rural areas (138 $si{\cdot}gun$) considering settlement environment by Decision Tree Method (CHAID). The CHAID method was used for decision tree algorithm and the seven dependant variables and 5 explanatory variables were selected, respectively. By decision tree method, rural areas were finally classified into six groups through three separate processes. City area, lower area in aging rate and higher area in farmland area ratio was analyzed to be relatively rich rather than other area in the case of settlement environment index. In the future, this study will be able to utilize as a reference to the planning of rural development projects.

• Journal of Korean Neurosurgical Society
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• 제38권4호
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• pp.293-298
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• 2005

Objective : The authors investigate the spatial characteristics of apoptotic genes expressed around the focal cerebral infarction, and attempted to explain the penumbra with them. Methods : A delayed focal cerebral infarction was created in twelve adult Sprague-Dawley rats. We performed the immunohistochemical staining for the apoptosis, bcl-2 and p53 proteins and measured the local cerebral blood flow [CBF] at the infarction core area and peri-infarct area pre- and intra-operatively. The peri-infarct area was divided into six sectors by distance from the infarction border. Results : The size [$mm^2$] of apoptosis, bcl-2, and p53 areas were $3.1{\pm}1.2$, $4.7{\pm}2.1$, and $6.8{\pm}2.4$, respectively. Apoptosis, bcl-2 or p53 positive cells were concentrated at the peri-infarct area adjacent to the infarction core. Their numbers reduced peripherally, which was inversely proportional to the local CBF. The p53 area seems to overlap with and larger than the ischemic penumbra. Conclusion : The p53 positive area provides a substitutive method defining the penumbra under the molecular base of knowledge.

• Journal of Preventive Medicine and Public Health
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• 제5권1호
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• pp.1-7
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• 1972

During the period from June 1st 1971 to November 30 th 1971, studies on air pollution were made in Kwangju city. The city was divided into 6 areas; the downtown area, the semi-downtown area, the heavy traffic area, the commercial area, the residential area, the park area, 13 surveying sites were selected each representing the characteristics of the area. The Measurement methods which were used are described below. Sulfur oxides were measured by $PbO_2$ cylinder method, sulfur dioxides ($SO_2$) and carbon monoxide (CO) by the MSA & Kitakwa detector, dustfall by the Deposit gauge method, and the noise levels by the Kanomax soundlevel meter. The results obtained are as follows: 1. The mean value of sulfur oxides in Kwangju city was $1.16mg\;SO_3/day/100cm^2\;PbO_2$, ranging from $0.45mg\;SO_3/day/100cm^2\;PbO_2$ to $3.10mg\;SO_3/day/100cm^2\;PbO_2$. 2. The mean values of sulfur oxides according to its specific area in the city were $1.45mg\;SO_3/day/100cm^2\;PbO_2$ in heavy traffic area, 1.36 in downtown area, 1.23 in semi-downtown area, 1.11 in commercial area, 0.96 in residential area, and 1.07 in park area, respectively. 3. The average concentration of sulfur dioxide was 0.063 ppm from 2 to 5 P.M in Kwangju city. 4. The average concentrations of sulfur dioxides according to its specific area, from 2 to 5 P.M, in the city were 0.084 ppm in heavy traffic area & downtown area, 0.067 in commercial area, 0.053 in semi-downtown area, 0.052 in residential area, and 0.036 in park area. 5. The average concentration of carbon monoxide was 22.3 ppm from 2 to 5 P.M, in Kwangju city. 6. The average concentrations of carbon monoxide according to its specific area, from 2 to 5 P.M, in the city were 27.0 ppm in downtown area, 26.3 in semi-downtown area, 23.0 in heavy traffic area, 21.7 in commercial area, 20.0 in residential arera, and 17.6 in park area. 7. The mean value of dusifall in Kwangju city was $29.28ton/km^2/month$, ranging from $9.85ton/km^2/month$ to $66.34ton/km^2/month$. 8. The mean values of dustfall according to its specific area in the city were $50.37ton/km^2/month$ in semi-downtown area, 42.76 in heavy traffic area, 34.67 in downtown area, 17.77 in commercial area, 14.40 in park area, and 14.76 in residential area. 9. The mean values of the soluble dust in Kwangju city was $10.23ton/Km^2/month$ and that of the insoluble dust was $19.05ton/Km^2/month$. 10. The mean value of noise level in Kwangju city was 62 phon, ranging from 37 phon to 88 phon. 11. The mean values of noise level according to its specific area in the city were 76 phon in heavy traffic area, 67 in semi-downtown area, 64 in downtown area, 59 in commercial area, 52 in part area, and 50 in residential area.

• 동의생리병리학회지
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• 제17권6호
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• pp.1419-1426
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• 2003

The concentration of heavy metal were studied for the estimation of quality in herbal medicines which is Bupleuri Radix, Paeoniae Radix, Dioscoreae Rhizoma and Astragali Radix in products of north Kyungbuk area. And we compared with heavy metal concentration of herbal medicines in products of Kyungbuk and the other area of Korea. Also, we collected soils from several area in Kyungbuk, and determined heavy metal concentration of soils by ICP. We compared with herbal medicines in products of Kyungbuk and their soils. The results were as follow : Kyungbuk area appear to be more proper to cultivated land than other area. For the heavy metals contents of Kyungbuk area, in Gong Jung Ri, represented the higher level, it may be due to a near the road. Correlation coefficients of heavy metal contents in cultured herbal medicines and their soils did not give reproducible results.