• Journal of Nutrition and Health
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• v.24 no.1
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• pp.40-47
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• 1991

To investigate a possible effect of pectinate(apple and carrot) and alginate (tangle or green laver) on blood pressure and sodium retention, male spontaneous hypertensive rats (SHR) were assigned to 5 different experimental groups and fed diets containing 5% dietary fiber and 1% NaCl for 3 weeks. Dietary fibers were provided from one of the followings : cellulose, freeze dried apple, carrot, tangle(Undardia pinnatifda) or green laver(Monostroma nitidium). Fecal sodium excretion did not change significantly among the groups, however, urinary sodium excretion was increased in groups fed either carrot. tangle or green laver compared to group fed cellulose. Sodium balance was also negative in groups fed either carrot, tangle or green laver. most effectively in green laver group. Blood pressure of groups fed apple. carrot. tangle or green laver were decreased, especially those of group fed tangle, compared to those of group fed cellulose. Dietary fiber containing alginate. such as tangle and green laver, might have cellular binding capacity to sodium so that increased urinary sodium excretion and decreased blood pressure occur.

• Proceedings of the Korean Society of Propulsion Engineers Conference
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• 2003.10a
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• pp.31-34
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• 2003

To trace the working point of pressure-fed rocket propulsion system, direct analogy model was suggested, by which propellant mass flow rate and combustion chamber pressure were calculated from propellant tank pressures, levels and flight acceleration. In this paper, the analysis of KSR-III flight test results was taken by example, and it can be described that working point transition tendency of pressure-fed rocket propulsion system can be calculated by this direct analogy model.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.23 no.5
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• pp.29-35
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• 2009

Field emission displays(FED) are currently being study as a potential flat technology. The purpose of this project shows the research result of vacuum packaging technology for the development of FED. For FED vacuum packaging, the bonding of glass/glass, the exhaust of vacuum and getter technology have been studied for vacuum packaging technology The simulation and vacuum sealing, and glass/glass bonding are also extensively studied. The glass/glass bonding is formed by using the frit glass and the Inside pressure of complete panel showed of $2{\times}10^{-5}$[Torr]. As a getter result, the increase of pressure has been showed the decrease of outgassing effect by using thin film getter.

• Proceedings of the Korean Society of Propulsion Engineers Conference
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• 2012.05a
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• pp.465-467
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• 2012

A layout plan of a pressure-fed test facility to carry out hot-firing test of liquid rocket engine combustion chamber and purpose of rooms located in the test building were proposed. The layout plan of suggested infrastructure in this paper was determined depending on the design of a vertical test facility to use the natural lay of the land and simulate the initial position of flight model.

• Asian-Australasian Journal of Animal Sciences
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• v.27 no.1
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• pp.101-114
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• 2014

While there are persistent rumors that the consumption of goat meat dishes increases blood pressure, there is no scientific evidence to support this. Two experiments were conducted to clarify whether or not blood pressure increases in conjunction with the consumption of goat meat dishes. In experiment 1, 24 Dahl/Iwai rats (15 weeks old, body weight $309.3{\pm}11.1$ g) were evenly separated into 4 groups. The control group (CP) was fed a diet containing 20% chicken and 0.3% salt on a dry matter basis. The goat meat group (GM) was fed a diet containing 20% goat meat and 0.3% salt. The goat meat/salt group (GS) was fed a diet containing 20% goat meant and 3% to 4% salt. The Okinawan mugwort (Artemisia Princeps Pampan)/salt group (GY) was fed a diet containing 20% goat meat, 3% to 4% salt and 5% of freeze-dried mugwort powder. The experiment 1 ran for a period of 14 weeks during which time the blood pressure of the animals was recorded. The GS, and GY groups consumed significantly more water (p<0.01) than the CP and GM groups despite the fact that their diet consumption levels were similar. The body weight of animals in the CP, GM, and GS groups was similar while the animals in the GY group were significantly smaller (p<0.01). The blood pressure in the GM group was virtually the same as the CP group throughout the course of the experiment. In contrast, while the blood pressure of the animals in the GS and GY group from 15 to 19 weeks old was the same as the CP group, their blood pressures were significantly higher (p<0.01) after 20 weeks of age. The GY group tended to have lower blood pressure than the GS group. In experiment 2, in order to clarify whether or not the increase in blood pressure in the GS group and the GY group in experiment 1 was caused by an excessive intake of salt, the effects on blood pressure of a reduction of salt in diet were investigated. When amount of salt in the diet of the GS and GY group was reduced from 4% to 0.3%, the animal's blood pressure returned to normotensive. These results indicate that, as in the case of chicken consumption, prolonged consumption of goat meat does not cause increased blood pressure, rather the large amount of salt used in the preparation of goat meat dishes is responsible for the increase in blood pressure.

• Journal of Nutrition and Health
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• v.29 no.10
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• pp.1087-1095
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• 1996

The study was carried out to investigate a new type of functional foods with hypotensive effect which is critical in the prevention and treatment of hypertension and related circulatory diseases. The experimental diets(A, B, C) were prepared from plant based ingredients such as buckwheat, potato, perilla seed with different ratios formulated as an edible form appropriate for human consumption according to AIN-77 standard. Control group(D) was fed commercial rat chow. Twety-four 15-week-old SDR(Sprague Dawley rats) and twenty-four 20-week-old SHR(spontaneously hypertensive rats), weighing 200g respectively, were assigned to 4 treatments of 6 rats each in a completely randomized design. Blood pressure was measured at 7 day interval by tail-cuff sphygmomanometer using an IITC cuff pump and amplifier. The growth rates of both SHR and SDR were not statistically different in comparions with the control except those of diet B and C in SDR and SHR, respectively(p<0.05). When exprimental diets were fed, systolic blood pressure of SDR and SHR at day 28 had been lowered by 17-20 mmHg(ave. of 19.6mmHg for both strains) compared with the reference pressure at day 0. The levels of HDL-cholesterol were increased, while the levels of LDL-cholesterol consistently decreased in both strains when experimental diets were fed(p<.05). Plasma total cholesterol levels were not different among treatments. Plasma triglyceride levels were higher in control diet(commercial rat chow) due to two times higher fat content of control diet itself(p<.05). Atherogenic indices were lower compared to those of control when the experimental diets were fed in both strains (p,.05). The results suggest that the antihypertensive diets mainly consisting of plant-based ingredients may possibly effective in relieving hypertension as well as circulatory diseases.

• Journal of the Korean Society of Propulsion Engineers
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• v.15 no.4
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• pp.94-102
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• 2011

Sub-system requirements of a pressure-fed hot-firing test facility for performance assessment of a Liquid Rocket Engine(LRE) thrust chamber using Liquid oxygen and kerosene were described. These requirements were based on the experience of construction and operation of the ground hot-firing test facility which was used for the development of the KSR-III and a 30 tonf-class LRE thrust chamber. So it is expected that this paper is used as a basic material and an itemized previous review statement for the design and construction of a large hot-firing test facility.

• Proceedings of the Korean Society of Propulsion Engineers Conference
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• 2010.11a
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• pp.63-71
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• 2010

Sub-system requirements of a pressure-fed hot-firing test facility for performance assessment of a Liquid Rocket Engine(LRE) thrust chamber using Liquid oxygen and kerosene were described. These requirements were based on the experience of construction and operation of the ground hot-firing test facility which was used for the development of the KSR-III and a 30 $ton_f$-class LRE thrust chamber. So it is expected that this paper is used as a basic material and an itemized previous review statement for the design and construction of a large hot-firing test facility.

• Journal of the Korean Society of Food Science and Nutrition
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• v.20 no.4
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• pp.300-305
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• 1991

To investigate possible effects of buckwheat on blood glucose level and blood pressure, Sprague-Dawley rats were divided into two groups and fed either AIN-76 diet or modified AIN-76 diet with buckwheat flour for 4 weeks. At the end of experiment, determinations of blood pressure and blood glucose level(glucose tolerance test) were performed. In order to determine insulin levels in both fasted and glucose loaded serum, the animals in both groups were subdivided into two groups. Blood pressure was slightly decreased in the group fed buckwheat( 6mmHg) but not significantly. Glucose tolerance curve of the animal fed buckwheat flour showed clearly different pattern from that of the control group with decreasing tendency. Mobilization of serum insulin was 1.5 times faster in buckwheat group than in control group 1 hour after glucose loading. Further research is needed to find what substance(s) in buckwheat do this role.

• Journal of Pharmaceutical Investigation
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• v.8 no.1
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• pp.17-26
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• 1978

Effects of Acanthopanax EtOH Extract (AEE) on the serum total cholesterol content of normal and cholesterol administered rabbits were investigated as a series of studies on pharmacological action, especially blood pressure to Korean Acanthopanax. AEE was administered orally(100mg/kg/day) and subcutaneously (30mg/kg/day) in both normal and cholesterol administered rabbits for 36 days. In this experiment the results obtained by comparing with values of the corresponding control group were as follows; 1) In the normal rabbits, long-term administration of AEE for 36 days did not entirely influence the serum total cholesterol content measured at 12th, 24th and 36th day and also not affect the original blood pressure and changes of blood pressure to norepinephrine, angiotensin and acetylcholine recorded at 36th day. 2) In the cholesterol administered rabbits, hypercholesteremia was induced by oral administration of cholesterol(300mg/kg/day) with feed. The rise rate of serum total cholesterol content was not modified at 12th day, whereas significantly inhibited at 24th and 36th days after begining this examination in both groups orally and subcutaneously administered AEE. Original blood pressure was declined and depressor action of acetylcholine was weakened in only group admininstered orally AEE of cholesterol-fed groups. Changes of blood pressure to norepinephrine and angiotensin in these all cholesterol-fed groups, and to acetylcholine in subcutaneous group of these cholesterol-fed groups were not affected significantly by AEE.