• Nutritional Sciences
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• v.4 no.1
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• pp.34-38
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• 2001

The purpose of this study was to compare the energy expenditure of normal-weight and overweight Korean middle-aged women (40-60 yr). Middle-aged oveweight ($BMI\;{\geq}\;25$, n= 20) and normal-weight women were ($BMI\;{\leq}\;23$, n = 20) were recruited in Seoul. Anthropometric measurements, body composition, energy intake, daily activity time, and energy costs of some daily activities were measured. Energy expenditure at rest and while reading the newspaper, washing dishes, mopping the floor, and walking on a treadmill at 1.0, 2.0, 3.5mph were measured by indirect calorimeter and total daily energy expenditure was estimated by summation of energy costs of different activities. The overweight group had significantly higher values of body weight, triceps skinfold thickness, thigh circumference, waist circumference, hip circumference, BMI, WTR, WHR, body surface area, percentage body fat, fat mass, fat free mass (FFM), and muscle mass compared to normal-weight group. The energy intakes of both groups were close to RDA and other nutrient intake status was also satisfactory. There were no significant differences in intakes of energy and nutrients between the two groups. Overweight subjects showed lower energy expenditure per kg body weight for reading the newspaper, washing dishes and mopping the floor, and walking on a treadmill at 2.0 and 3.5 mph, however, energy expenditure per kg FFM did not differ between the two groups. Daily energy expenditure for all activities was significantly higher in the overweight compared to the normal-weight group due to higher body weight. Both overweight and normal-weight groups showed negative energy balance between energy intake and energy expenditure, and there was no significant difference in energy balance between the two roups. Total daily energy expenditure correlated highly with FFM and body surface area. The result of present study does not offer an explanation on the energy imbalance and weight gain of overweight women.

• Proceedings of the Korean Nuclear Society Conference
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• 2001.05a
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• pp.94.1-94
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• 2001

• Proceedings of the Korean Nuclear Society Conference
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• 2001.10a
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• pp.66-66
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• 2001

• Proceedings of the Korea Forestry Energy Research Society Conference
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• 1999.04a
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• pp.41-42
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• 1999

• Korean Journal of Community Nutrition
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• v.7 no.1
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• pp.67-75
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• 2002

The purpose of this study was to investigate the difference of body composition, eating habits and dietary intake in three Sasang constitutions. This survey was carried out using anthropometry, a questionnaire about eating habits, and 24-hour recall of dietary intake on 45 male and 29 female students of the fifth grade at C elementary school. The results are summarized as follows: A total of 44.6% of the subjects were Taeumin, 35.1% were Soyangin, and 20.3% were Soeumin. The average weight, WHR, Triceps, Rhrer index and BMI in the Taeumin group were significantly higher than those of the Soeumin and Soyangin groups. The body fat mass (kg) and abdominal fat (%) in the Taeumin group were significantly higher than those of the Soeumin and Soyangin groups. The soft body mass (%) in the Soeumin group was significantly higher than that of the Soeumi and Soyangin groups. The Taeumin’s energy expenditure in physical activities was little high than that of the Soyangin and Soeumin groups, but the Soyangin’s energy expenditure in physical activities per weight was a little higher than that of the Taeumin and Soeumin groups. The calorie and most of the nutrient intake were lower than those of Korean RDA. In the case of males, most nutrient intake, except for fiber, carotene and vitamin C were high in the Taeumin. For females, most nutrient intake, except for calcium and retinol were significantly higher in the Taeumin group. Conclusively, anthropometry characteristics, body composition, energy expenditure in physical activities, eating habits and dietary intake are different among the three Sasang constitutions. This study suggests the possibility of using Sasang consitutions as a basis for providing nutritional education and health guidelines.

• Journal of the Korean Home Economics Association
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• v.44 no.7 s.221
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• pp.85-98
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• 2006

The purpose of this study was to investigate the correlation of dietary and serum phospholipid fatty acids composition and serum lipid levels in postmenopausal women. Data about anthropometry, dietary intake, physical activities, serum lipid profile and serum phospholipid fatty acid composition were collected from eighty-five postmenopausal women. The subjects were classified as normocholesterolemia (NC), moderate hypercholesterolemia(MC) and phyperchollesterolemia(HC) according to their serum total cholesterol (TC) levels based on The Guideline for Korean Hyperlipidemia set/published by The Committee for Hyperlipidemia in Korea. The results were as follows. Total energy intake and the ratio of energy intake to energy expenditure were positively related, while dietary fiber intake was negatively related, with serum TC level. Dietary fat intake was positively related with serum LDL-C level. Dietary cholesterol, saturated fatty acid (SFA), monounsaturated fatty acid (MUFA) intake and the ratio of ingested saturated fat and cholesterol to calories (RISCC) were positively related, while the P/S ratio of dietary fat was negatively related, with serum TC and LDL-C levels. Serum phospholipid fatty acids composition was not significantly different among the three groups. SFA of serum phospholipid fatty acids was positively related, while P/S and M/S ratios of serum phospholipid fatiy acids were negatively correlated, with serum TC and LDL-C levels. We recommend that the dietary P/S ratio of postmenopausal women is increased by reducing their dietary SFA intake. With these changes in the diet, serum phospholipid fatty acid composition could be also changed, and serum lipids levels could be improved.

• Corrosion Science and Technology
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• v.19 no.5
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• pp.231-238
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• 2020

Radioactive corrosion product specimens were analyzed using an electron probe microanalyzer (EPMA) and X-ray image mapping. It is difficult to analyze the composition of radioactive corrosion products using an EPMA due to the size and rough shape of the surfaces. It is particularly challenging to analyze the composition of radioactive corrosion products in the form of piled up, small grains. However, useful results can be derived by applying a semi-quantitative analysis method using an EPMA with X-ray images. A standard-less, semi-quantitative method for wavelength dispersive spectrometry. EPMA analysis was developed with the objective of simplifying the analytical procedure required. In this study, we verified the reasonable theory of semi-quantitative analysis and observed the semi-quantitative results using a sample with a good surface condition. Based on the validated results, we analyzed highly rough-surface radioactive corrosion products and assessed their composition. Finally, the usefulness of the semi-quantitative analysis was reviewed by verifying the results of the analysis of radioactive corrosion products collected from spent nuclear fuel rods.

• Journal of Korean Vacuum Science & Technology
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• v.6 no.4
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• pp.139-142
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• 2002

Contactless electroreflectance measurements at room temperature were used to determine the bandgap energies of Zn$_{1-x}$ Mg$_{x}$O thin films grown by metal-organic vapor phase epitaxy. It is found that the bandgap energy increases monotonically with the Mg composition x, up to the highest composition measured (x=0.45). The obtained correlation between the bandgap energy and the Mg composition can be used in the analysis of the electronic structure of ZnO/Zn$_{1-x}$ Mg$_{x}$O heterostructures at room temperature.ature.

• Journal of Ginseng Research
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• v.16 no.1
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• pp.1-6
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• 1992

Chemical composition was determined to evaluate the quality of Panel ginseng-leaf tea over green teas. Ginseng-leaf tea was shown to contain higher contents of soluble matter, ascorbic acid and lower contents of tannins, as compared to tea leaves. The profiles of ginsenoside and sugar of ginseng-leaf tea were noticeably different from those of ginseng roots and the sample maintained high levels of these components under the manufacturing process. Total unsaturated fatty acids and free amino acids were estimated to be decreased in ginseng-leaf tea as compared to those of ginseng leaves. The compositions of amino acids and minerals in ginseng-leaf tea were similar to those of tea leaves and glutamic acid, aspartic acid, leucine, calcium, potassium, sodium, and copper were found to be major components.

• Asian-Australasian Journal of Animal Sciences
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• v.7 no.3
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• pp.321-324
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• 1994

One hundred and twenty indigenous pigeons of either sexes of different age groups were sacrificed in different seasons to assess the interactions of sex, age and seasons on the proximate composition and gross energy values of fresh boneless meat. The dry matter and protein contents decreased but the fat, ash and energy contents increased linearly as the birds aged. Seasons and age had significant influences on either of these two performance traits. Meat of growing pigeons of both sexes was found to contain high protein and low fat throughout the year.