• 천문학회지
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• 제29권2호
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• pp.157-170
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• 1996

In order to determine the metallicity of a globuar cluster, M3,by using the spectral indices, a kind of index grid has been establshed by stars in globular clusters, M3, M15, M71 and old open cluster, NGC 188. The indices were measured from the medium resolution spectra of about $2{\AA}$. The summed indices were used to determine metallicity in order to increase signals. It is found that the core depth index is measured more accurately and leads result more accurate than the pseudo-equivalent width index. This method can be further improved by including many more calibration globular clusters of various metallicity to make finer grids. By this method, the metallicity of M3 is determined as $[Fe/H] = -1.46\pm0.15$.

• 대한치과의사협회지
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• 제10권11호
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• pp.725-729
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• 1972

Ist permanent molars of 3340(1717;1623) primary school children in Kyung Nam and Kang Won province were observed. The results were as follows: 1. In dental health index of permanent 1st molars, male was 98.89, female 97.75, both sexes 95.95 in Kang Won and male was 97.94, female 96.25, both sexes 97.09 in Kyung Nam province. 2. In D.M.F. index, male was 1.11, female 2.25, both sexes 1.68 in Kang Won and male was 2.06, female 3.75, both sexes 2.91 in Kyung Nam province. 3. Female was generally lower than male in dental health index and male was higher than female in D.M.F. index. 4. Epidemiologically, Kang Won was higher than Kyung Nam province in dental health index. 5. In D.M.F. index, Kang Won province was lowest than other districts; city and farm and fishing village. In dental health index, it was increased in Kyung Nam and next was Kang Won province.

• 한국산림과학회지
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• 제81권2호
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• pp.139-145
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• 1992

본(本) 연구(硏究)는 강원대학교(江原大學校) 임과대학부속(林科大學附屬) 연습림(演習林)의 제(第)2임반(林班)을 대상으로 수치지형도(數値地形圖)를 이용, 임도개설목적(林道開設目的)에 따른 4개의 평가인자(評價因子), 즉 최단임도개설장(最短林道開設長), 평균집재거리(平均集材距離), 개발지수(開發指數) 및 집재불능지점수(集材不能地點數)의 비율(比率) 등을 설정하여 각각의 평가인자(評價因子)에 적합한 최적임도노선(最適林道路線)의 배치계획(配置計劃)에 대하여 검토하였다. 그 결과(結果)를 요약(要約)하면 다음과 같다. 1. 최단임도개설장(最短林道開設長)에 의한 노선배치(路線配置)는 총연장(總延長) 6035.6m, 임도밀도(林道密度) 12.73m/ha, 평균집재거리(平均集材距離) 279.9m, 개발지수(開發指數) 1.43, 집재불능지점수(集材不能地點數)의 비율(比率)15.7% 이다. 2. 평균집재거리(平均集材距離)에 의한 노선배치(路線配置)는 총연장(總延長) 7828.501, 임도밀도(林道密度) 16.52m/ha, 평균집재거리(平均集材距離) 198.4m, 개발지수(開發指數) 1.31, 집재불능지점수(集材不能地點數)의 비율(比率) 4.0%이다. 3. 개발지수(開發指數)에 의한 임도노선배치(林道路線配置)는 총연장(總延長) 7410.6m, 임도밀도(林道密度) 15.64m/ha, 평균집재거리(平均集材距離) 210.9m, 개발지수(開發指數) 1.26, 집재불능지점수(集材不能地點數)의 비율(比率) 5.0%이다. 4. 집재불능지점수(集材不能地點數)의 비율(比率)에 의한 임도노선배치(林道路線配置)는 총연장(總延長) 8307.1m, 임도밀도(林道密度) 17.53m/ha, 평균집재거리(平均集材距離) 184.9m, 개발지수(開發指數) 1.29, 집재불능지점수(集材不能地點數)의 비율(比率) 2.5%이다.

• 대한원격탐사학회지
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• 제26권3호
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• pp.305-316
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• 2010

The MODerate Resolution Imaging Spectroradiometer (MODIS) sensor has 36 bands at 250m, 500m, 1km spatial resolution. However, 500m or 1km MODIS data exhibits a few limitations when low resolution data is applied at small areas that possess complex land cover types. In this study, we produce seven 250m spectral bands by fusing two MODIS 250m bands into five 500m bands. In order to recommend the best fusion method by which one acquires MODIS data, we compare seven fusion methods including the Brovey transform, principle components algorithm (PCA) fusion method, the Gram-Schmidt fusion method, the least mean and variance matching method, the least square fusion method, the discrete wavelet fusion method, and the wavelet-PCA fusion method. Results of the above fusion methods are compared using various evaluation indicators such as correlation, relative difference of mean, relative variation, deviation index, peak signal-to-noise ratio index and universal image quality index, as well as visual interpretation method. Among various fusion methods, the local mean and variance matching method provides the best fusion result for the visual interpretation and the evaluation indicators. The fusion algorithm of 250m MODIS data may be used to effectively improve the accuracy of various MODIS land products.

• 한국수산과학회지
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• 제54권4호
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• pp.543-551
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• 2021

Changes in gluten surface hydrophobicity, which play an important role in the functional characteristics of protein, were measured according to various protein concentrations, pH levels, electrolytes concentrations, and alginate molecular weights using 8-anilino-1-naphthalene sulfonic acid (ANS) as a fluorescent probe. Gluten surface hydrophobicity decreased as gluten concentration increased, reaching a maximum pH of 7.0. The effects of alginate molecular weights and alginate concentration on the surface hydrophobicity, emulsifying activity index (EAI), and emulsion stability index (ESI) of gluten-sodium alginate dispersion (GAD) were measured. Gluten surface hydrophobicity rapidly increased the asl NaCl concentration of gluten solution up to 300 mM and showed no significant increase above 300 mM. However, gluten surface hydrophobicity notably decreased until the concentration of CaCl₂ and MgCl₂ reached 30 mM, indicating no significant variations above 30 mM. GAD surface hydrophobicity increased as the concentration and molecular weight of sodium alginate increased, however, gluten concentration increased as the GAD surface hydrophobicity decreased. The EAI and ESI of GAD increased as both molecular weight and concentration of sodium alginate increased.

• 유변학
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• 제8권3_4호
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• pp.226-231
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• 1996

침강제에 의해 형성된 E. coli floc들의 강도를 측정하기 위해 floc 의 shear index를 측정하였다. 형성된 E. coli floc은 10/sec 같이 낮은 shear rate에서도 분쇄되거나 변형되었 다. 측정된 shear index의 감소에서 보듯이 E. coli floc의 강도는 염의 농도가 증가함에 EK 라 감소하였다. E. coli floc의 shear index는 NaCl의 농도가 0에서 100 mM로 증가함에 따 라 0.47에서 0.09로 줄었다. 발효배지의 조성에서 형성된 E. coli floc들은(shear index=0.18-0.24 with BPA-1000. 0.13-0.22 with BPA-1050 and 0.37-0.42 with BPA-5020) 염이 없을 때 형성된 floc에(shear index=0.47 with BPA-1000 and 0.46 with BPA-1050) 비 해 약하였다. 따라서 발효배지에서 형성된 floc은 생물공정 중 쉽게 shear에 의해 분쇄되거 나 변형될것이다.

• Journal of Plant Biology
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• 제5권2호
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• pp.17-20
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• 1962

Altitudinal zones of Mt. Hanla were geoecologically investigated, and compared with climate index, according to Coniferae distribution. For climatic index, Warmth index was calculated on Mt. Hanla. With the resultsobtained, the altitudinal zones can be classified into the following three zones; Coniferous forest zone: below $43^{\circ}$ (month-degrees) (above 1, 450m) Deci(u)us broad-leaf forest zone: $84^{\circ}$-$43^{\circ}$ (600-1, 450m) Lucidophyllous forest zone: above $84^{\circ}$ (below 600m)

• Journal of applied mathematics & informatics
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• 제36권3_4호
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• pp.307-315
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• 2018

Let G be a simple connected graph with n vertices and m edges, with a sequence of vertex degrees $d_1{\geq}d_2{\geq}{\cdots}{\geq}d_n$ > 0. A vertex-degree topological index, referred to as harmonic index, is defined as $H={\sum{_{i{\sim}j}}{\frac{2}{d_i+d_j}}$, where i ~ j denotes the adjacency of vertices i and j. Lower and upper bounds of the index H are obtained.

• 대한지리학회지
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• 제43권3호
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• pp.312-323
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• 2008

본 논문에서는 인간 생활에 기본이 되는 온도, 상대습도를 기초로 하여 인간의 온열감을 측정하여 남한의 온열감 분포의 특성과 기후유형을 파악하였다. 연구 방법은 설문지 검사를 통하여 온습도 지수 공식을 이용, 월별 온열감, 연 누적 온열감 지수를 계산하였다. 월별 온열감 지수 분석 결과 온열감의 지역적 차이는 위도 및 고도, 지형적 요인, 기단체계에 따른 영향으로 나타났다. 연 누적 온열감 지수분포는 대체로 남쪽에서 북쪽으로 갈수록, 해안에서 내륙으로 갈수록 기후 스트레스가 증가하였다. 이러한 원인으로 겨울의 추위 스트레스와 여름의 더위 스트레스가 높기 때문에 나타나는 현상으로 사료된다. 연 생리 기후유형은 쾌적함(M)기후유형, 극히 무더움(ES)유형, 쾌적함-극히 무더움(M-ES)유형, 쾌적함-무더움(M-S)유형, 더움-극히 무더움(W-ES)유형, 서늘함-극히 무더움(C-ES)유형, 서늘함-쾌적함(C-M)유형, 서늘함-쾌적함-극히 무더움(C-M-ES)유형으로 도합 8개의 기후유형으로 구분된다.

• 대한치과의사협회지
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• 제12권11호
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• pp.853-855
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• 1974

The author had studied dental caries and periodontal disease in the 600 officers of National Medical Center. The results were as follows. 1. The dental caries experience rate in the officers of N.M.C was 87.0% and the D.M.F. teeth index was 5.0 2. The decayed teeth index was 2.55 and the missed teeth index was 0.39 and the filled teeth index was 2.27 3. The periodontal disease rate was 86.7%