• Journal of Advanced Marine Engineering and Technology
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• 제5권1호
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• pp.12-19
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• 1981

As the fuel oil cost covers from 45% to 60% of the total expenditure for fishing boat operation, the energy saving is now an urgent problem to be taken a countermeasure for engineers, manufacturers or specialists engaging in this field. Undertaking a second-hand engine of the trainging ship, the author made several reconstructions to restore its performances. By inserting foot linears of connecting rods the compression ratio was increased and by adjusting both the fuel injection timing and the cooling water outlet temperature, its thermal efficiency was improved. The results of the experimental operation were summarized as follows. 1. By raising the piston top position 0.75mm more than the value of the operating manual, the compression pressure increased 1.3 kg/$cm^2$ and the maximum pressure did 3.4 kg/$cm^2$ at 75% load. 2. At 75% load, the difference of the maximum pressure between each cylinder was decreased from 2.4 kg/$cm^2$ to 1.8 kg/$cm^2$. 3. The fuel consumption was decreased about 8 g/ps.h at 75% load, and about 5.3 g/ps.h at 85% load. 4. The brake thermal efficiency was improved about 1.5% at 75% load and 0.9% at 85% load.

• 대한가정학회지
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• 제18권1호
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• pp.47-52
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• 1980

In view of the nationel health, the health of women during their childbearing age is important. In Korean, several studies reported that incidence of anemic case was high among these group. The present study was conducted to investigate the dietetic life and dietetic problems among college women during their child-earing age. One hundred thirty seven college women (Age ranges 18.5 to 21.8) who lived in Gwangju area were randomly selected and were practiced dietary survey by three day records in November 1979. Also, hemoglobin level was determined. The result are summarized as follows; their diets were found to be lacking I total amounts of food it takes (878.6$\pm$266.9 gm) and in such foods as cereals, potatoes, beans, green and yellow vegetables, oils and fats and small fishes. but animal food intakes were sufficient in such foods as fishes, meats and eggs. The average calorie intake (1729.3$\pm$437.0kcal) was insufficient against R.D.A (2000kcal) and the daily energy expenditure (2024.7kcal). Lacking nutrients were Fe and Vitamin A these percentages of R.D.A. were 75.61% and 80.14% The mean body height (16.1$\pm$8.1cm) was higher tendency compared to other studies, but the mean body weight (49.8$\pm$4.1kg) was lighter. The average Hb level was 12.75$\pm$2.94gm%, and 13.64% of the subjects was anemic (12gm% below) The differences of each nutrient intake between the anemic and the healthy group not noted statistically significant.

• 대한가정학회지
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• 제29권3호
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• pp.61-69
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• 1991

The relationships between nutrients intake, physical activity and bone mineral density were investigated in 19 elderly men aged 71-80 years. A trained nutritionist interviewed usual dietary intake and daily activity with a questionnaire, and bone mineral density was measured at the lumbar spine and three regions of the proximal femur (femur neck, Ward's triangle and trochanter) with a Luna DP3 dual photon absorptiometry. The correlations between dietary calcium intake and bone mineral density at the lumbar spine and trochanteric region were significant at P<0.05 and P<0.01 level respectively. the significant correlations were also found between vitamin A(P<0.005), riboflavin(P<0.01), and ascorbic acid(P<0.05) intake and bone mineral density at these sites. Higher physical activity was associated with greater bone mineral density of four sites, but this was not significant. But there were significant relationships between total energy expenditure and bone mineral density of the lumbar spine(P<0.01), femur neck (P<0.05) and Ward's triangle(P<0.05). In this study the results revealed that bone mineral density of the lumbar spine and trochanteric region were associated with dietary calcium intake. And bone mineral density of the femur neck and Ward's triangle were related to physical activity but not to nutrients intake. In conclusion, dietary calcium intake seems to be a important factor for greater bone mineral density. Further evidence will be needed that physical activity protects against bone fracture and osteoporosis in the edlerly.

• 한방비만학회지
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• 제1권1호
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• pp.13-20
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• 2001

비만이란 음식물로 섭취한 칼로리가 신체활동으로 소모된 칼로리보다 많은 경우 잉여 칼로리가 체지방으로 축적된 경우로서 심장병, 고혈압, 동백경화증, 고지혈증, 뇌졸중, 당뇨병, 지방간 등의 유병율을 높여 현대인의 건강을 위협하는 중요한 원인이 된다고 알려지고 있다. 최근 저자는 비만과 고지혈증, 슬관절의 퇴행성 관절염으로 체중증가, 슬관절통, 하지방산통을 주소로 하는 환자 1례를 초저열량식이요법, 한약요법, 운동요법과 한방물리요법을 시행한 결과 체중감소와 체성분의 변화, 혈액학적 변화, 자각증상의 개선의 효과를 보았기에 치료내용과 경과를 보고하는 바이다.

• 운동영양학회지
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• 제16권1호
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• pp.11-17
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• 2012

The purposes of this study were to investigate the effects of acute exercise on blood vaspin, glucose level, and inflammatory cytokines in middle-aged women with pre-diabetes. Nineteen middle-aged women (normal women, n = 11) and women with pre-diabetes(n = 8), who were apparently healthy and not taking any medications affecting their blood pressure or blood glucose, participated. Body fatness parameters including body mass index, body fat percentage, and waist circumference were measured using a bio-impedance analyzer. Resting blood pressure was measured in duplicate, and mean values were used for the data analysis. Regardless of group assignments, all subjects participated in a 3-day consecutive walking exercise at an intensity of 65% VO_2max targeting an energy expenditure of 1200 kcal (400 kcal per day). The major outcome variables included total cholesterol, triglycerides, high-density lipoprotein cholesterol, glucose, vaspin, interleukin-6, and adiponectin levels. Unlike normal women, women with pre-diabetes had a significant improvement in the homeostatic model assessment of insulin resistance (p < 0.025) with no significant group difference in response to acute exercise. The findings suggest that acute exercise results in a significant improvement in insulin sensitivity without any change in serum vaspin levels in women with pre-diabetes.

• 한방비만학회지
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• 제23권2호
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• pp.98-111
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• 2023

Objectives: The purpose of this study was to review predictive factors associated with weight loss in moderate to severe obesity treatment. The direction of the treatment for moderate to severe obesity will be suggested in consideration of various factors. Methods: Authors searched the articles published from 2018 to 2023 in three international databases (PubMed, Embase and the Cochrane Central Register of Controlled Trials) and two domestic databases (Research Information Sharing Service, Korean studies Information Service System). Studies including treatment with moderate to severe obese patients were selected. Results: A total of 43 studies were included. The main factors of weight loss were unchangeable predictors such as low initial degree of obesity, younger age, non-diabetes and high resting energy expenditure with changeable predictors such as increase in protein, physical activity, self-efficacy, initial weight loss and attendance of the treatment. Conclusions: Our review results suggest that based on the characteristics of moderate to severe obese patients, predictors of weight loss can be used to determine treatment and prognosis in various aspects.

• 환경정책연구
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• 제7권2호
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• pp.1-32
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• 2008

본 연구는 에너지부문 환경세 도입방안의 소득분배 파급효과를 "도시가계조사" 및 "가계조사" 자료를 이용하여 Kakwani지수에 적용하여 살펴보았다. 분석결과, 첫째 비수송용 에너지 사용에 대한 조세는 누진적, 수송용 연료에 대한 조세는 역진적인 성격을 가지는 것으로 나타났고, 둘째 시나리오별 누진성 측정지표는 현행 에너지 가격구조와 비교하면, 환경세가 역진적이라고 추정한 기존 연구들과 달리 시나리오 I은 교통혼잡세를 제외하고는 누진성을 강화시키는 것으로 나타났다. 시나리오 II의 전체 세부담액에 의한 지표는 누진성을 약간 강화시켰고, 시나리오 III은 부가가치세와 세수 총계에서 약간 역진적인 성격을 보이나 환경세, 열량세, 환경세 교통혼잡세 열량세의 합계로 각각 측정한 지표는 누진성을 전반적으로 강화시키는 것으로 추정되었다. 셋째, 환경세도입으로 인해 조세수입이 증가(시나리오 III)하는 것을 절대빈곤계층에게 환급해 줄 경우 예상대로 누진성을 강화시켰고 또한 환급수준이 클수록 누진성 강화 정도 역시 커졌다. 결과적으로 환경세 도입이 소득분배 측면에서 부정적인 영향을 주지 않을 뿐만 아니라 환경세 도입으로 인해 발생한 세수 증가분을 빈곤계층에게 일부 환급할 경우, 누진성이 더 강화되는 결과를 보여주어 소득계층간 불공평성도 상당부분 해소될 수 있다고 결론내릴 수 있다.

• Journal of Acupuncture Research
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• 제33권2호
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• pp.135-150
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• 2016

Objectives : The aim of this study is to review the combination effects and adverse effects of Yerba Mate (Ilex paraguariensis) on the treatment of obesity. Methods : Four databases were searched, including Pubmed, National assembly library, RISS4u, and NDSL, for studies published before March 31, 2016 using the keywords 'yerba mate', 'Ilex paraguariensis', and those related to 'obesity'. Clinical trials, and both in vivo and in vitro studies were classified according to the following categories: publication year, nationality, types and composition of test compounds, combination effects, adverse effects, and safety. Results : A total of 16 articles (14 clinical trials, one in vivo, one in vitro) were included in the analysis. Combination effects were reported from six YGD (Yerba Mate, Guarana, Damiana, Zotrim), five Meltdown, one Shred-matrix, one DBX (DymaBurn Xtreme), one XSIII research study, and adverse effects were reported from two YGD (Zotrim), four Meltdown, one Shred-matrix and one MetEF research study. YGD and Shred-matrix increased satiety while YGD and MetEF had adverse gastrointestinal effects potentially due to guarana. Meltdown and Shred-matrix increased energy expenditure and fat oxidation and had the adverse effects of increased heart rate and blood pressure due to the thermogenic effect of caffeine and yohimbine. DBX increased resting energy expenditure but no difference was observed in respiratory exchange ratio. XSIII reduced body weight gain and food intake more than each of the extracts did on their own. Conclusion : Taken together, the combination effects and adverse effects differed according to the composition of test compounds and the ratio of ingredients. Multicomponent approaches should be used for treating multifactorial diseases such as obesity. As a general conclusion, there is a place for a combination of herbal components including yerba mate, based on the principle of Kun-Shin-Choa-Sa for the treatment of obesity.

• 대한영양사협회학술지
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• 제4권1호
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• pp.65-75
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• 1998

Recently, the number of patients who received Bone Marrow Transplantation(BMT) has been increased dramatically and the diseases for which BMT if efficacious are increasing. Adequate nutritional card for BMT patients is crucial for the success of BMT because nutritional deficiency could provoke deteriorative effects. However, little is known about nutritional status among BMT patients in Korea. This study was conducted to assess oral and parenteral intake of BMT patients and compare the change of nutritional status before and after BMT. Twenty-two BMT patients who were admitted to the Severance hospital from December in 1995 to September in 1997 participated in the study. Total calorie requirements were calculated for each patients individually and nutritional support for each patients consisted of oral and parenteral feeding. To assess oral intake of BMT patients, each patients recorded the amount of food they have eaten from 6 days before BMT to 28 days after BMT. The medical records of each patients were used to assess parenteral intake. To compare the nutritional status before and after BMT, the results of anthropometric and biochemical test from 14 days before BMT to 28 days after BMT were used. At the time of admission, the patients were in allowable nutritional status and their total calorie intake was 93% of total calorie requirement. When the preparative regimen for BMT was started, the patients' oral intake was dramatically decreased below 400kcal/day. Even though their oral intake was increased after BMT, their oral intake at the 4th week after BMT was only 752kcal/d, which is only 35.8% of total calorie requirement. The patients' mean oral intake during BMT period (from 6 days before BMT to 28 days after BMT) was only 439kcal/d. Although Total Parenteral Nutrition(TPN) was added when the preparative regimen was started, the patients' mean total caloric intake during BMT period was 111% of basal energy expenditure and 83% of total calorie requirement. The mean total protein intake was only 58% of total protein requirement. In the comparison of nutritional status between pretransplant phase and posttransplant phase in BMT patients, their body weight and serum albumin level were significantly decreased(p<0.001). These results show inadequacies in nutritional intake among BMT patients, and indicate the need of TPN during BMT period.

• 생약학회지
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• 제42권2호
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• pp.201-208
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• 2011

Obesity occur from the imbalance between energy intake and energy expenditure. Obesity is a complex chronic disease that is suggested to cause other metabolic disorders such as type 2 diabetes, hyperlipidemia, hypertension, and arteriosclerosis. In this study, our purpose is to investigate the anti-hyperglycemic and anti-obesitic effects of Maydis stigma water extract in 3T3-L1 adipocytes and db/db mice. Maydis stigma water extract at dose of 100 and 500 ${\mu}g/ml$ slowly inhibited cell viability as compared to that of control in mature adipocytes. Also, the additions of 50 and 250 ${\mu}g/ml$ of Maydis stigma water extract significantly inhibited the lipid accumulations and CCAAT/enhancer-binding protein(C/EBP) ${\alpha}$ and peroxisome proliferator-activated receptor(PPAR) ${\gamma}$ expressions with dose-dependent manner in 3T3-L1 adipocytes. Maydis stigma water extract at 250, 500, and 1000 ${\mu}g/ml$ only showed the increasing pattern on lipolysis activity. The oral treatment of Maydis stigma water extract (100 or 400 mg/kg body weight) in db/db mice only showed tendency to decrease body weight, food efficiency ratio (FER), HbA1c, blood glucose, total cholesterol, triglyceride, and the adipocyte size of in db/db mice. However, Maydis stigma water extract increased the insulin level in a dose dependent manner. Thus these results indicate that Maydis stigma water extracxt inhibits adipogenesis through regulation of C/EBP${\alpha}$ and PPAR${\gamma}$ expressions in 3T3-L1 adipocytes and shows anti-hyperglycemic effect through increase of insulin secretion in db/db mice.