• Journal of Korean Society of Forest Science
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• v.110 no.4
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• pp.658-664
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• 2021

This study aimed to develop accurate status site index curves for C. japonica in Gyeongsang-do that reflect the regional characteristics. The development of high-growth models in Chapman-Richards, Schumacher, and Gompertz for 552 C. japonica growing in Gyeongsang-do. The Gompertz growth function is the most suitable for developing site index curves. The comparative test was analyzed using the F test at a significance level of 5% and the graph. As a result, compared with the national site index curves and site index curves under base age in Jeolla-do, the p-value was 0.05 or higher, and there was no statistically significant difference. The p-value was 0.05 or lower compared with site index curves over stand age in Jeolla-do, indicating a statistically significant difference. Therefore, it was determined that site index curves for C. japonica in Gyeongsang-do can be applied to the national site index curves and site index curves under base age in Jeolla-do, but not to site index curves over base age in Jeolla-do. Hence, based on the results of the study, it is possible to provide basic data on the forest management system for C. japonica in Gyeongsang-do and systematic and reasonable management through high field application reflecting regional characteristics.

• International Area Studies Review
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• v.13 no.3
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• pp.191-210
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• 2009

Energy Security has been factor of great importance to national security, economy, society and all other areas. However, it has been in the lack of situation where there is no leading method to measure energy security nor to compare among countries until now. In the research, objective index to assess energy security has been developed and compared among the level of countries in terms of energy importing countries' perspective. Based on the suggested index, comparison for the energy security level has been explained. The implication of the research is that in terms of energy importing perspectives, method to appraise energy security and according to this, energy security rate by each countries with respect to LNG. This method is doubtlessly applicable to comparison of security rate from other resources and fluctuation of energy security by reflecting other factors. Also, discussion about how increased autonomy of resources can impact Korean energy security with regard to recent international energy development. As a consequence, it has revealed that enhanced authority of resources evokes ascendancy of energy security in a positive way.

• Proceedings of the KAIS Fall Conference
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• 2007.05a
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• pp.256-260
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• 2007

본 논문에서는 비접촉식 표면거칠기 측정 방법에 관하여 접촉식과 비교 평가함으로 신뢰성을 확인하였으며, 비교측정하기 위하여 시편을 제작하고 접촉식 방법과 비접촉식 방법으로 측정하고 비교 분석하였다. 분석 결과 접촉식에 비해 비접촉식의 측정에서의 값은 신뢰할 수준으로 판단되었다.

• Proceedings of the Korean Society Of Semiconductor Equipment Technology
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• 2007.06a
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• pp.144-148
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• 2007

레이저 변위 센서를 이용한 비접촉식 표면거칠기 측정 방법에 관하여 접촉식과 비교 평가함으로 신뢰성을 확인하였으며, 비교측정하기 위하여 시편을 제작하고 접촉식 방법과 비접촉식 방법으로 측정하고 비교 분석하였다. 분석 결과 접촉식에 비해 비접촉식의 측정에서의 값은 신뢰할 수준으로 판단되었다.

• Proceedings of the Korean Nuclear Society Conference
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• 1996.05a
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• pp.191-196
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• 1996

이 논문에서는 Gadolinia, Erbia, IFBA를 비교평가 대상 독물질로 선정하여, 영광 3/4호기 노심을 대상으로 주기길이별 독봉장전노심을 구성하여 노심핵특성인자들을 비교평가하였다. 주기길이측면에서 Gd 장전노심과 IFBA 장전노심이 비슷하게 예측되었으며 Erbia 장전노심이 약 10∼13일 정도 작게 예측되었다. 냉각재 온도계수 측면에서는 Erbia 장전노심의 타 독물질 장전노심에 비해 우수하게 평가되었다. 최대 Fr 인자 측면에서는 Erbia 장전노심과 IFBA 장전노심이 거의 비슷한 수준에서 우수하게 평가되었으며 Gd 장전노심은 이 측면에서 취약한 것으로 평가되었다.

• Proceedings of the Korea Water Resources Association Conference
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• 2016.05a
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• pp.135-135
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• 2016

지구온난화가 진행되면서 태풍, 홍수, 호우 등 기후변화에 기인한 재해의 피해수준이 심해지고 범위도 날로 확대되고 있다. 한국의 경우에도 집중호우와 그로 인한 침수피해 등 자연재해로 인한 피해가 늘어나면서 자연재해에 대응할 수 있는 재난행정에 대한 관심이 높아지고 있다. 그럼에도 불구하고 복합적인 양상을 보이는 재난에 효과적으로 대처하기 위한 행정체제에 대한 연구는 아직 부족한 실정이다. 특히 재난행정이 오랫동안 발전해온 미국과 일본의 체제 각각에 대한 연구는 있어왔으나, 한미일 3개국의 재난행정체제를 체계적으로 비교하고 한국에 필요한 시사점을 도출한 연구는 많지 않았다. 따라서 본 연구는 한국의 행정체제의 발전에 오랫동안 지대한 영향을 미쳐온 미국과 일본의 재난행정체제를 분석하고 최근의 재난 양상과 관련해 한국에 필요한 시사점을 도출한다. 본 연구의 연구방법으로는 비교제도분석을 실시했다. 우선 선행연구 검토에 기반하여 재난행정체제의 비교분석에 필요한 비교틀을 구성하고, 분석틀에 기반해 한국, 미국, 그리고 일본의 재난행정체제를 비교한다. 분석결과 한국의 재난 행정체제는 미국 및 일본과 같은 재난행정의 선진국가와 비교할 때 재난관련 법률이 통합적이지 않고 분산되어 있어 상호중복 및 충돌의 소지가 있으며, 재난관리 단계에 있어서도 예방보다는 대응과 복구에 중점을 두는 것으로 나타났다. 또한 재난대응의 1차 책임소재도 불명확하며 민간네트워크도 재난에 효과적으로 대응할 수 있는 수준으로 발전되지 않은 것으로 드러났다. 이러한 문제점에 대한 개선방안으로서 미국과 일본의 재단대응체제으로부터 다음과 같은 시사점을 얻을 수 있다. 첫째, 기존의 분산되어 있는 기본법들을 통폐합하여 재난관리를 통합적으로 다루는 기본법을 제정할 필요가 있다. 둘째, 지방정부의 재난대응역량을 강화시키고 보다 많은 책임과 권한을 부여해야 한다. 셋째, 재난관련 기관들의 역할을 명확히 분담하고, 정보를 공유하며, 조정기제를 효율화하여 재난대응시 협업이 효과적으로 이루어질 수 있도록 하여야 한다. 이를 위해서는 분산적인 재난관리체제를 통합적 성격의 체제로 전환해야 한다. 넷째, 주민단위 재난대응조직과 협력의 틀을 구축하여 민관네트워크를 활성화하여야 한다.

• Journal of the Korean Chemical Society
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• v.48 no.6
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• pp.645-653
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• 2004

The purpose of this study was to compare and analyze the cognitive levels of 11th grade students and those required in high school chemistry I textbooks standardized by the 7th national education curriculum. For this study, the cognitive development stages of 456 11th grade students were surveyed using short-version GALT (group assessment of logical thinking). Furthermore, 15 basic concepts were extracted from the contents on water and air, 2 units in chemistry I order to analyze the cognitive levels necessary for understanding high school textbooks, using CAT (curriculum analysis taxonomy). The results showed that 52.5% of the surveyed 11th grade students reached the formal operational level, 28.3% transitional levels, and 19.5% concrete operational levels. 68.9% of the academic high school students and 6.6% of the technical high school students reached the formal operational levels, and the ratio of formation was very different in each logics. As a result of the analyzing the cognitive levels needed for understanding chemistry I textbook contents, in spite of a change in national education curriculum, there were no great change in cognitive levels required by scientific concept except some inquiry activities. The cognitive levels in high school chemistry I textbooks by the 7th national education curriculum appeared higher than the cognitive levels of 11th grade student, but cognitive levels of inquiry activities were similar to the cognitive levels of the students. Chemistry teachers thought of chemistry I textbooks by the 7th national education curriculum as desirable because scientific concepts were reduced and a lot of real life materials were adapted. However, they pointed out a problem of difference in contents levels compared with chemistry I textbooks because scientific concepts were greatly reduced in chemistry I textbooks. The cognitive levels required in chemistry I textbooks still appeared higher than those of the students. Consequently, various teaching and learning methods and materials will have to be developed to be suitable for the students' cognitive levels.

• Journal of Nutrition and Health
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• v.54 no.1
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• pp.39-53
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• 2021

Purpose: This study examined the dietary behavior, health status and nutrient intake by considering the level of household income of elderly people using data obtained from the Korea National Health and Nutrition Survey (KNHANES VII) 2018. Methods: The study subjects were 1,355 elderly people over 65 years old (558 men, 797 women). Based on their household income, participants were classified into three groups: low-income, middle-income, and high-income. The variables consisted of general characteristics, dietary behavior, health status, health related behavior, and dietary intakes. Dietary data were estimated by the 24-hour dietary recall. Results: In men, the low-income group encompassed older, less educated, less employed, and living with family of first generation. However, in women, there were no differences in employment by the level of income, and women living alone had lower income than subjects living with family. Elderly men in the high-income group had a significantly higher level of nutrient intake (energy, protein, fat, phosphorous, riboflavin, niacin and vitamin C). Men in the low-income group consumed a significantly lower intake of fruits, seaweeds and eggs, including total food. Women in the low-income group had significantly less intake of protein, fat, calcium, phosphorous, iron, vitamin A, riboflavin, and niacin whereas women in the high-income group had significantly higher intake of sugar & sweet, eggs, and beverages, including total food. Conclusion: These results suggest that the level of household income is an important factor that influences food and nutrient intake in the Korean elderly. The socioeconomic status needs to be considered differently among elderly men and women when implementing food assistant programs and designing nutrition education programs.

• Journal of Nutrition and Health
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• v.17 no.4
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• pp.253-261
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• 1984

The effect of fiber sources on lipid metabolism was investigated in relation to the level of dietary fat. After rats were fed each diet for 4 weeks, all animals were sacrificed to collect the liver, and blood samples by heart puncture. Total lipid, total cholesterol, phospholipid and HDL- cholesterol were determined in serum. Total lipid and total cholesterol were also determined in liver. These results were compared with the histochemical appearances by the method of Oil red-O staining. Higher level of fat in the diet appeared to increase the total lipid levels in serum and more fat in the liver cells were shown from the high fat diet judging from the E.M. pictures. Phospholipid concentration in serum was greater in the rats of high fat groups than those of the control or non-fat groups. High fat level caused to decrease the HDL- cholesterol concentration in serum. Pectin decreased serum and liver lipids and the deposit of fat in the liver cells. HDL-cholesterol levels in serum was increased by pectin. Whereas the cellulose supplementation had no effect to reduce serum and liver total lipid levels, and cellulose did not decreased the deposit of fat in the liver cells. From these results, it is concluded that dietary fat levels led to changes in the lipid metabolism of rats and pectin may exhibit a lowering total lipid contents in serum and liver. Cellulose may slightly elevate serum and liver levels, or have no lowering effect.

• 방재와보험
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• s.105
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• pp.25-30
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• 2005

한 국가의 건축법령에 포함된 화재안전기준은 그 나라의 방화공학 기술수준과 화재 시의 인명안전수준을 단적으로 말해준다. 한국의 경우 법령 개정기관의 전문성 결여, 화재안전법령의 양대 축인 건축법과 소방법의 이원화, 건축법령상의 화재안전 관련규정의 미흡함으로 인해 종합적인 화재안전성의 목적달성이 어렵다. 이에 본 원고는 한국, 미국, 캐나다, 영국, 호주의 건축법령 제.개정 시스템의 비교분석을 통해 한국의 화재안전법령체계의 개정 및 유지관리시스템의 문제점과 개선방안을 도출하였다.