• 한국자기공명학회논문지
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• 제20권1호
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• pp.7-12
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• 2016

PTMEG(Polytetramethylene ether glycol) is a polymer compound widely used as a wide range of applications in the textile industry. PTMEG substance carrying various 1,800~2,000 molecular weight are mainly used as the raw material of the spandex production. Molecular weight and degree of polymerization value for 4 different PTMEG samples under pilot plant scale synthetic process were determined by a new quantitative NMR method. In NMR experiments, p-toluenesulfonic acid(TSOH) was used for external standard material of PTMEG quantitative analysis. were measuring The concentration of the primary standard TSOH was measured by UV/Vis spectroscopy. By using NMR peak assignments and the integral values of designated proton NMR peaks, We were able to measure the % composition of the synthetic PTMEG polymers, concentrations, molecular weight and the degree of polymerization that show the synthetic process of each manufacturing pilot plant. By utilizing a newly developed quantitative NMR method were able to obtain the molecular weight of PTMEG samples within 0.08 error % range.

• 대한가정학회지
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• 제45권7호
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• pp.49-60
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• 2007

The purpose of this study was to analyze the weight measurement tasks according to children's ages and whether 4-to 6-year-old children use proper measurement equipment to measure weight. The study subjects were 105 preschool children: 37,38, and 30 4-, 5-, and 6-year-old children, respectively. The results showed that young children use 3 to 4 strategies. They used a strategy to estimate objects visually on the first step in measurement by direct comparison. On the second step, in measurement by nonstandard unit, they held up objects with one hand or two hands. That is, two strategies were shown in measuring objects with hands in this second step. On the third step, which is measured by standard unit, they used a strategy to choose the equal arm balance out of suggested measurement equipment.

• Advances in Traditional Medicine
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• 제7권3호
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• pp.274-279
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• 2007

The crude ethanol extract of leaves of Sonneratia caseolaris Linn. (Sonneratiaceae) was screened for its antinociceptive and antidiarrhoeal activities. The extract produced significant writhing inhibition in acetic acid induced writhing in mice at dose of 250 and 500 mg/kg body weight (P<0.01) comparable to the standard drug diclofenac sodium at the dose of 25 mg/kg of body weight. When tested for its antidiarrhoeal effects on castor oil induced diarrhea in mice, it increased mean latent period and decreased the frequency of defecation significantly at the dose of 500 mg/kg body weight (P < 0.05) comparable to the standard drug loperamide at the dose of 50 mg/kg of body weight. The overall results tend to suggest the antinociceptive and antidiarrhoeal activities of the extract.

• Advances in Traditional Medicine
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• 제7권3호
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• pp.280-285
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• 2007

The methanol extract of leaves of Bruguiera gymnorrhiza (L.) Lam. (Rhizophoraceae) was screened for its antinociceptive and antidiarrhoeal activities. The extract produced significant inhibition in acetic acid-induced writhing in mice at dose of 250 and 500 mg/kg body weight (P < 0.001), comparable to the standard drug diclofenac sodium at the dose of 25 mg/kg of body weight (P < 0.001). When tested for its antidiarrhoeal effects on castor oil-induced diarrhea in mice, it increased mean latent period (P < 0.02) and decreased the frequency of defecation (P < 0.01) significantly at the dose of 500 mg/kg body weight, comparable to the standard drug loperamide at the dose of 50 mg/kg of body weight. The overall results tend to suggest the antinociceptive and antidiarrhoeal activities of the extract.

• 대한지역사회영양학회지
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• 제3권4호
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• pp.533-541
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• 1998

This study compares the growth performance(weight-for-age Z-score, height-for-age Z-score, weight-for-height Z-score) of one- to three- month-old Korean infants(n=232) with the Korean standard(1994) and NCHS reference(1983). The weight-for-age Z-scores(WAZ) by the Korean standard were -2∼1,5 for males and -3∼1 for females. The NCHS reference, WAZ results were -1∼2.5 and -2.5∼3.5 for males and females, respectively. The WAZ compared Korean standard showed no subjects with overnutrition. But 1.3% of the infants showed signs of malnutrition. Comparison with NCHS reference revealed that 0.4% of the infants were malnourished and 7.0% of the infants were overnourished. The WAZ of formula-fed infants were distributed higher than breast-fed infants, but that was not significant. The height-for-age Z-score(HAZ) by the Korean standard were -4.5%∼1.5% for males and -4∼1.5% for females. According to the NCHS reference, HAZ were -2.5%∼2.5% and -3∼3 for males and females, respectively. When the WAZ was compared with the Korean standard, there was no overnutrition but 16% of the infants showed signs of malnutrition. The NCHS reference, revealed that 6.9% of the infants were malnourished and 1.8% of the infants were ovemourished. The weight-for-height Z-scores(WHZ) by the Korean standard were -2∼5 for males and -2.5∼5 for females. The NCHS reference WAZ scores were -1∼4 and -1.5∼4.5 for males and females, respectively. When the WHZ was compared with the Korean standard, 2.2% of infants were malnourished and 19.5% were overnourished. There were no malnourished subjects according to the NCHS reference and 19.1% of the infants were overnourished. When the three Z-scores are considered together, 92.0% of the infants should a normal growth status, there was no malnutrition, and 8.0% of the infants were overnourished. The growth performance was evaluated differently according to the type of standards. Thus, it is necessary to set proper growth standards for infants, according to which classification of feeding methods is chosen. A longterm and careful assessment of infants's growth performances to develop any group of standards.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1997년도 한국자동제어학술회의논문집; 한국전력공사 서울연수원; 17-18 Oct. 1997
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• pp.1281-1284
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• 1997

In this article, the configuration of weight lifer is analyzed using manipulibility polytope. After modeling body as 7-link redundant robot, optimal joint angles during first stage are searched by dynamic programmi technique and compared with standard reference data.

• Clinical and Experimental Pediatrics
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• 제50권8호
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• pp.732-739
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• 2007

목 적 : 임신주수에 따른 출생체중의 정상치는 하나의 기준으로 모든 인종, 국가, 시대를 만족시킬 수 없으며 각 인종별, 국가별로 다른 기준을 가져야 한다. 현재 우리나라에서 현재 사용되고 있는 임신주수별 출생체중의 기준치들은 우리나라의 실정에 맞지 않고 각각의 성별, 태아수별, 분만횟수별 기준치도 따로 분류되어 있지 않은 실정이다. 이에 우리나라의 성별, 태아수별, 분만횟수별 임신주수에 따른 기준치를 제시하고 각각을 비교하기 위해 이 연구를 시행하였다. 방 법 : 2000년부터 2004년까지 5년간 통계청의 인구동태자료 중 출생자료에 기록되어 있는 2,658,156명중 임신주수 24주에서 42주까지의 신생아 2,585,516명을 대상으로 Finite mixture model을 이용하여 임신주수별 출생체중을 분석하고 오류를 제거한 후 성별, 태아수별, 분만횟수별 기준치를 만들고 이를 비교하였고 우리나라에서 사용하고 있는 기준치와 비교하였다. 결 과 : 남아의 평균 출생체중은 $3,326{\pm}442g$, 여아의 평균 출생체중은 $3,225{\pm}428g$으로 남아가 더 무거웠으며 임신주수에 따른 출생체중도 전 임신주수에서 남아가 더 무거웠다. 단태아의 평균 출생체중은 $3,278{\pm}438g$, 쌍태아의 평균 출생체중은 $2,443{\pm}464g$으로 단태아가 더 무거웠으며 임신주수에 따른 출생체중도 전 임신주수에서 단태아가 더 무거웠다. 첫째아이의 평균 출생체중은 $3,264{\pm}440g$, 둘째아이의 평균 출생체중은 $3,282{\pm}428g$으로 둘째아기가 더 무거웠으며 임신주수에 따른 출생체중은 전 임신주수에서 둘째아기가 더 무거웠다. 단태아의 임신주수별 출생체중을 Lubchenco 등의 기준과 비교해 보았을 때 10th percentile과 50th percentile에서 우리나라 신생아의 출생체중 기준보다 전반적으로 무거웠고, Alexander 등의 기준과 비교해 보면 50th percentile 과 90th percentile 은 우리나라 신생아의 출생체중 기준에 비해 무거웠다. 결 론 : 본 연구에서 얻은 성별, 태아수별, 분만횟수별 임신주수별 출생체중의 유형은 다른 연구자들의 결과와 비슷했다. 또한 본 연구에서 얻은 임신주수에 따른 출생체중의 기준치는 5년간 우리나라 출생아 전수를 대상으로 객관적인 기준에 의해 오류를 제거하고 만들어 진 것이다. 그러므로 우리나라의 신생아의 임신주수에 의한 출생체중의 기준 및 자궁내발육부전이나 과체중출생아의 진단 기준으로 사용할 수 있으리라 생각된다.

• 한국축산식품학회지
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• 제21권4호
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• pp.337-343
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• 2001

본 연구는 현재 국내에서 유통되고 있는 닭고기를 중량규격인 5호∼16호로 분류하여 수분, 지방, 단백질 및 회분의 일반성분과 전단력, 보수력, 지방, 단백질 및 회분의 일반성분과 전단력, 보수력, 가열감량 및 육색 그리고 무기물 힘량을 분석하였다. 가슴살에 대한 수분의 함량은 중량이 비교적 큰 11∼16호의 평균이 74.87%인 반면 중량이 작은 5호∼10호의 75.50%중량이 증가할수록 약간 감소하는 경향을 나타내었다. 조지방 함량은 5호부터 8호가 2.78∼2.35%을 나타내었으나 12∼16호에서는 0.47∼0.66%로 낮은 지방 함량을 보였다. 그러나 조단백질의 함량은 중량이 적을수록 감소하였으나 중량이 증가할수록 높았다. 보수력과 가열감량은 중량에 따라 일정한 경향을 보이지 않았으나 전단력의 경우 중량이 적을수록 증가하는 경향을 보였다. 무기물 중 칼슘은 중량규격이 증가할수록 감소하는 경향을 보인 반면 인은 반대의 경향을 보였다. K와 Mg는 중량규격이 증가할수록 증가하는 경향을 보였으나, 철은 중량이 낮은 6호의 경우 6.16 ppm인 반면 15호는 3.50 ppm으로 중량이 증가할수록 감소하는 경향을 보였다. 육색은 명도를 나타내는 L*값은 5호가 71.33으로 가장 높게 나타난 것을 제외하고 나머지에서는 중량규격별 큰 차이를 나타나지 않았다. 황색도를 나타내는 b*값은 가슴살에서 6.79∼1.73의 분포를 나타냈으며 중량이 증가할수록 감소하는 경향을 나타내었다. 다리살도 중량규격별 11호부터 16호까지 수분, 지방, 단백질 및 회분의 일반성분과 전단력, 보수력, 가열감량 및 육색 그리고 무기물 함량을 분석하였는데 가슴살과 같은 중량범위에서는 부위(가슴살, 다리살)에 따른 차이는 있었으나, 중량규격(11호∼16호)에 따른 증감율은 서로 비슷한 경향을 나타내었다.

• Asian-Australasian Journal of Animal Sciences
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• 제4권3호
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• pp.227-230
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• 1991

A comparative study was conducted in total thirty six large while weaner pigs of about 15 kg body weight namely boars, barrows and gilts to evaluate best sex and economic slaughter weight with one standard ration. In 159 days study period feed consumption, growth, feed conversion ratio and carcass quality were judged in all sexes of pigs at 50, 70 and 90 kg body weight. It was noted that upto 70 kg body weight the growth in boars and gills 46.0 and 49.0 kg and feed conversion ratio 4.83 and 4.81 were superior and economical over the barrows, which were 45.5 kg and 4.95. Later on there were too many fluctuations in growth and feed conversion ratio in all sexes of pigs, which would be uneconomical. Carcass quality was also better in boars and gilts than barrows, No boar taint was noted in most of the boar carcasses. Hence it is concluded that boars and gilts can be raised upto the 70 kg body weight for economic pork production.

• 한국의류학회지
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• 제18권5호
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• pp.615-621
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• 1994

This study was carried out to investigate the effect of clothing habit on physiological adaptation to the change of season. The survey of clothing weight in fall '||'&'||' winter for 2 years, the frequency of cold infection in winter and degree of fatigue was performed with 110 female high school students. The actual condition of clothing and the correlations between clothing weight and cold infection, and between the clothing weight and degree of fatigue were suveyed. The results are followed as; 1. The clothing insulation was nearly same to indoor standard clothing insulation in H hun wearing normal clothing, but was higher 2 clo in S hun clothed uniform. Especially in spite of similar enviromental condition the clothing weight, minimum '||'&'||' maximum and variation of clothing weight for 2 years were showed to be heavier in S hun than H hun. Also indoor thermal sensation felt by the subjects indicated "cold", and the difference between clothing insulation and standard clothing insulation showed increase gradually. 2. L group was indicated to be lower in cold infaction ratio than M '||'&'||' H group, and the correlation between clothing group and cold infection ratio was recognized to be significant (p<0.05). And H hun and L-H group showed to be lower in cold infection ratio than S hun, H-L group. 3. The coefficience between clothing weight and degree of fatigue was recognized to be significant (p<0.05).