• 한국식생활문화학회지
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• 제26권2호
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• pp.170-177
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• 2011

We examined household's food expenditures in this study. The empirical work outlined here used quarterly data from 2003 Q1 to 2010 Q3. All variables are in log form and were obtained from the Korea National Statistical Office. The food items included cereals, dairy products, fruits, meat, vegetables, and alcoholic beverages. We applied the ordinary least squares method to a model consisting of household income and seasonal dummies. This is because household expenditures are ordinarily a function of income and have seasonal characteristics. The household's food consumption patterns also reflect the prevailing social and environmental circumstances. This study showed that the income coefficients of cereals, meat, dairy products, and alcoholic beverages tend to increase in the long-run, whereas those of vegetables and fruits decreased. The results also revealed that consumption of alcoholic beverages and meat was greatly affected by household income fluctuations, whereas those of vegetables and dairy products were not sensitive to income. The impulse response functions indicated that expenditures not only increased slowly before peaking one to eight quarters after the income shock but declined very slowly to pre-shock levels. The response of dairy products at the twelfth step was three times as large as that of the first step.

• 한국식품영양학회지
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• 제7권3호
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• pp.177-182
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• 1994

The effect of phosphate salt (NafHP04) and sodium citrate on the emulsion stability of soy protein isolate (SPI) in the presence of calcium was investigated in terms of salt concentration and addition order. Both phosphate and citrate salts decreased the solubility of SPI despite their pH enhancing effects. Addition of calcium chloride (CaCl2) significantly decreased ES, which showed nearly negligible at more than 3 mM CaCl2 concentration. When Na2HP04 were added in the presence of 5 mM Cac12, 55 greatly increased up to 20mM concentration, above which however ES decreased. It was found that the addition order of Na2HPO4 and CaCl2 affected ES. The addition of phosphate and subsequent CaCl2 exhibited the higher 55 than the reverse order. In both cases, the overall ES profile was found to be nearly similar to the solubility profile of SPI, indicating the positive relationship between solubility and emulsion stability of SPI in the presence of calcium. Similar trend to the phosphate effect on ES was also observed for sodium citrate in the presence of calcium.

• 고려인삼학회:학술대회논문집
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• 고려인삼학회 1984년도 학술대회지
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• pp.199-213
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• 1984

홍삼 분말을 혼합하여 제조한 사료로 $60{\~}80g$ 의 Sprague Dawley Rat(female) 12마리를 1군으로 하여 $1{\~}6$개월간 사육하였다. 사육기간동안. 체중증가, 혈청의 생화학적 분석, 장기(심장 폐, 신장, 간. 비장, 뇌)의 무게차 이들 장기의 병리조직검사를 하였다. 인삼 사육관과 대조군의 성장율, 장기 무게와 혈구수는 통계적 유의성은 없었으나 혈청중의 triglyce-ride, total cholesterol, free cholesterol 함량은 대조군과 유사하였고 total lipid, free fatty acid는 대조군에 비해 약간씩 감소하였다. 그러나 실험군의 total protein, phospholipid, HDL-cholesterol은 대조군에 비해 증가하였다. 실험군의 병리조직검사에서도 대조군과 차이가 없었으나, 특히 대조군의 비장에서는 조혈기능을 지닌 거핵구세포가 다수 출현하였으며 인삼 투여기간과 용량에는 비례하지 않았다. $F_{1},\;F_{2}$세대의 적혈구, 백혈구, 장기 무게와 병리조직검사는 대조군과 유사하였으며 외형적 기형도 발견되지 않았다. 이상의 결과들로 고려인삼은 건강식품으로도 매우 안전하며 조혈기능도 촉진시킴을 시사해 준다.

• 약학회지
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• 제40권1호
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• pp.52-58
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• 1996

Solvent fractions were prepared from traditional herbal drugs which of methanol extracts inhibited $CCl_4$-induced cytotoxicity in primary cultured rat hepatocytes and c ontinuously assayed their effects. Ethylacetate and n-buthanol fractions from Cibotii Rhizoma and chloroform fraction from Gelatina Nigra inhibited the release of LDH and GPT from $CCl_4$-treated hepatocytes, respectively. Water fraction (WAR) among solvent fractions from Astragali Radix showed the most potent inhibitory effect on the release of GOT or GPT by treatment with $CCl_4$. All of solvent fractions prepared from Eucommiae Cortex had no effect on $CCl_4$-induced cytotoxicity. Chloroform and ethylacetate fractions from Rehmanniae Radix Preparata increased the release of GPT from $CCl_4$-treated hepatocytes. n-Hexan, chloroform or ethylacetate fraction from 5 herbal drugs increased the release of LDH, GOT or GPT from normal hepatocytes at the dose of 1.Omg/ml. Administration of WAR suppressed the elevation of GOT, ALP activities and MDA contents in the serum as well as in the liver tissue of $CCl_4$-intoxicated rats. Based on these results, isolation of antihepatotoxic substances from WAR is under the process.

• Journal of the Korean Wood Science and Technology
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• 제37권3호
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• pp.274-286
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• 2009

목질바이오매스 원료는 구성성분 특성 및 분포상 생물 화학적 전환에 매우 큰 장애요소를 지니고 있다. 특히 셀룰로우스를 이용하고자 하는 경우의 리그닌 장애는 해결해야 할 중요한 요소로 인식되고 있어 바이오에탄올 생산에서도 당화공정에 앞서 전처리 공정이 필연적이며 최종 에탄올 수율 및 생산비용에도 영향이 커서 다양한 전처리 방법들이 제안되고 있는 상황이다. 본 총설은 문헌연구를 통하여 최근 세계적으로 진행되고 있는 목질바이오매스 대상의 전처리 연구에 대한 동향을 파악하고, 이들 전처리공정의 특징 및 장단점을 분석하여 국내 목질바이오매스 원료 및 생산여건에 적합한 공정 연구 개발에 필요한 기초자료를 마련하고자 하였다. 국내외적으로 활발하게 연구되는 주요 전처리 기술은 각각 공정 및 경제성 면에서 장단점이 있어 원료나 생산여건 환경에 따라 적합한 전처리 공정을 선택해야 할 필요가 있는 것으로 고찰되었다.

• 한국해양환경ㆍ에너지학회지
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• 제4권1호
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• pp.63-69
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• 2001

세계 각국의 전자해도 데이터와 이를 이용한 항행시스템인 ECS, ECDIS는 안전항해를 위해 필수적인 시스템으로 자리잡아 가고 있으나 데이터의 화면 표시에서 생기는 Clutter의 문제로 정보 판독성이 떨어지는 문제를 안고 있다. 이러한 문제를 해결하기 위해 SCAMIN이라고 하는 개별 오브젝트의 속정을 사용하고 있으나 축척 변화에 따른 오브젝트 on/off현상과 같은 또 다른 문제를 낳고 있다. 본 논문에서는 전자해도 오브젝트의 SCAMI보 값 지정에 대한 국제 사례를 분석하고 문제점의 해결 방법으로 '가변 Factor 체계'를 제안하였다.

• 약학회지
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• 제46권2호
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• pp.113-119
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• 2002

The composition of monosaccharides of acidic polysaccharide isolated from ethanol-insoluble and water-soluble fractions of red ginseng roots was analysed and its immunological activities were investigated. Red ginseng acidic polysaccharide (RGAP) was composed of glucose (26.1 mole %), arabinose (1.6 mole %), glucuroninc acid (51.8 mol %) and galacturonic acid (5.1 mole %) as determined by gas liquid chromatography. Addition of RGAP increased production of nitric oxide (NO) and tumor necrosis factor (TNF)-$\alpha$ in the rodent macrophage cultures. Peritoneal macrophages from RGAP-treated mice exhibited potent tumoricidal activities toward P815 and WEHI 164 tumor cells. It was also observed that concentrations of NO and TNF-$\alpha$ were high in the culture medium of macrophages from the mice administered with RGAP. Moreover, treatment of RGAP in vivo stimulated tumoricidal activities of natural killer (NK) cells. Treatment with RGAP increased life span of sarcoma 180-bearing mice and decreased tumor weights of B16-tumor-bearing mice. These results suggest that activation of macrophages and NK cells serve to enhance in vivo anticancer activities of RGAP.

• 영어어문교육
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• 제15권4호
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• pp.291-311
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• 2009

The purpose of this study is to investigate the English reading strategies of Korean secondary EFL learners by their personality types. The study was conducted with 112 middle school students and 100 high school students in Korea. The instrument used for personality measurement was the MBTI test. A reading strategy questionnaire was used to see how frequently each reading strategy was used while students read passages in English. The collected data was analyzed using t-test and two-way ANOVA to see the differences between high school and middle school students in terms of personality types. The results of the study demonstrated that there were significant differences in strategies used by the two groups of students and high school students used more reading strategies than middle school students. It was also found that the students exhibited some differences in reading strategy use depending on their personality types, especially between the N(Intuition) and S(Sensing) types. For example, students with N(Intuition) types used more vocabulary-comprehension, guessing, and metacogntive strategies than S(Sensing) types. Pedagogical implications and suggestions for classroom English teachers are discussed based on the results of the current study.

• 간호행정학회지
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• 제21권5호
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• pp.501-510
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• 2015

Purpose: The purposes of this study were to identify the effects of social support, resilience, stress and satisfaction in major on the happiness index of nursing students. Methods: Data were collected from March 16 to April 10, 2015 through a self-report questionnaire survey. Participants were 205 students in three different nursing colleges located in Busan and Yangsan. Measured variables were social support, resilience, stress, satisfaction in major and Happiness index. Results: Social support, resilience, satisfaction in major, and personal relationships had significant positive effects on the happiness index, while stress had a negative effect on the happiness index. Explained variance for the happiness index was 46% and social support was the most significant factor in the happiness index of nursing students. Conclusion: The results from this study suggest that resilience, social support, stress, satisfaction in major, and personal relationships should be considered as the main influential factors when developing intervention strategies to increase of the happiness index of nursing students.

• 간호행정학회지
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• 제13권2호
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• pp.176-183
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• 2007

Purpose: The objective of this study was to define nursing informatics competency and self-leadership perceived by hospital nurses and the relationship between those variables. Method: The subjects of this study were 215 nurses who had worked in one university hospital in P city. For this study the following study tools were used: the Staggers Nursing Computer Experience Questionnaire and self-leadership scale. Data was analyzed using mean, standard deviation, t-test, ANOVA, Scheffe and Pearson correlation coefficient. Results: The mean score of each item in informatics skill domain and informatics knowledge domain $2.93{\pm}.49$ and $3.40{\pm}.50$. The average score of self-leadership was $3.39{\pm}.53$. 'Self-leadership' was positively related with 'nursing informatics competency'. Conclusion: This study proved that there were significant positive correlation between nursing informatics competency and self-leadership. These results suggested that it would be necessary to develop regular educational program which promotes the nurses' self-leadership as well as nursing informatics competency in schools. And practical education program for nurses must be planned continuously for informatics competency in hospitals.