• Journal of the Korean Society of Food Science and Nutrition
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• v.33 no.3
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• pp.553-559
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• 2004

This study was carried out to estimate the effects of glucono-$\delta$-lacton (GDL) on prolongation of shelf-life on Kimchi. Final concentration of added GDL was determined 0.3% according to the result of sensory evaluation. Chemical characteristics and microbiological parameters were monitored during fermentation at 1$0^{\circ}C$. GDL Kimchi showed the initial sharp decrease in pH and gradually increase of pH due to osmotic pressure and then the pH of GDL Kimchi was slowly decreased compared with that of control Kimchi during fermentation. The acidity of control Kimchi was markedly increased around pH 4.5 by growth of microorganism. Otherwise, GDL Kimchi showed that t]le formation of organic acids was slow and little amount compared with that of control Kimchi. HPLC analysis showed oxalic acid, lactic acid, acetic acid, malic acid and succinic acid appeared by fermentation. The production of lactic acid changed a lot in control Kimchi, where as little in GDL Kimchi. Growth of L. mesenteroides at initial stage of Kimchi fermentation was remarkably inhibited by adding 0.3% GDL. It retarded also the growth of L. Plantarum and L. breuis at late stage of Kimchi fermantation and led to reduce the softening of texture and retard over ripening of Kimchi. Tn sensory evaluation of Kimchi, GDL Kimchi showed the similar characteristics to the control Kimchi. This result suggested that GDL can be successfully used for the prolongation of shelf-life and sensory evaluation on Kimchi.

• Journal of Society of Preventive Korean Medicine
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• v.8 no.1
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• pp.155-161
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• 2004

The average life span is expanded due to the development of modem society, material and cultural life and increasing level of public health. This means that the aging society is rapidly progressing. Geniatric diseases also have increased due to increasing of the aged population. Along with an increase of the aged patient, the anti-aging, prevention of geniatric disease and quality of life is tending high on social concern and medical issues. Many reports showed the evidence to the positive anti-aging effect of Oriental medicine. Qigong therapy, a kind of Oriental medicine, has been used to prevent aging and life prolongation with positive effect for many thousand years. Therefore, qigong practice is popular and common to middle age and old age in China.

• Journal of the Society of Naval Architects of Korea
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• v.29 no.2
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• pp.79-91
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• 1992

This paper develops the compliance approach to the problem of load sharing between a cracked plate and a patch used to bridge the crack. The theory is validated by using calculated stress intensity factors for the patched and unpatched case to reduce experimentally observed growth rates to common base, Calculations are then made on the effect of patch dimension on fatique life technique. The optimum design of the patch considered the life expectancy and fracture strength of the cracked structure can be performed simply by using this technique.

• Korean Journal of Food Science and Technology
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• v.27 no.4
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• pp.546-554
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• 1995

Vacuum cooling of crisphead lettuce by pilot-scale vacuum cooling apparatus, transportation under the conventional and cold-chain systems and distribution were carried out for its freshness prolongation and application of cold-chain system for fresh fruits and vegetables. Changes in temperatures of crisphead lettuce were also measured during transportation. $Q_{10}$ value for respiration rate of crisphead lettuce was $1.7{\sim}2.4$ and its initial freezing point was $-0.2^{\circ}C$. Cooling the vegetable to $0^{\circ}C$ was possible in less than 30 minutes by vacuum cooling. The shelf-life was extended by more than 90% by the combination of vacuum cooling and low temperature distribution.

• The Journal of the Korean life insurance medical association
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• v.3 no.1
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• pp.174-186
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• 1986

A review team has been set up in Yong Nahm central Bureau Dong Bang Life Insurance Company to study on yearly treands and Mortalities of life insureds according to the causes of deaths. The subjects included in this study were the Life insureds in these area offices and one Who died within 2 years after the admission during 17 months period between 1984-4-1 and 1985-8-31. In cases of the insurance for educational fund, the subjects were the applicants who pay the dues of insurances instead of the insured youngsters. 1) The most frequent cause of death was malignant newgrowth, the next was heart disease, the third was central nervous vascular system diseases, and the fourth was Hepatitis and Liver cirrhosis. 2) The previous Leading cause of deaths were infectious diseases, Parasitic disease or Respiratory diseases, Such as Pneumonia bronchitis, Tuberculosis, Since remarkable prolongation of the longevity of Korean population in recent years, this has been showed marked changes after 1980, this phenomenon would be in accordance with Bogue's theory. 3) The authors hoped to extend this study to get more clear views, because it covered only a short period and very limitted areas of subjects to make a difinite conclusion on this time.

• Journal of the Korea Furniture Society
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• v.24 no.2
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• pp.208-216
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• 2013

The need of the life be healthy is increasing to the human life prolongation. There are lots of companies using the use of environment-friendly material as the sales strategy today. But a consumer is insufficient of the information about the environment-friendly ingredient. The level of Consciousness for the consumer standard of living and health got higher recently. And the interest about the furniture material comprising the residential space rose. I consider the consumer changing mind the safety of the conservation of the environment and mankind. Also, future of the environment-friendly material can say that is light if develop various the environment-friendly material description and accomplish the Higher Value-added of resource.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2005.05a
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• pp.191-196
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• 2005

Unpreparedness of the maintenance regulations is regarded as the main reason for the short life span of the multi-owned commercial residential buildings. This study suggests that the followings should be prepared for the effective maintenance and life prolongation of the multi-owned commercial residential buildings : 1) Standard maintenance regulations for those buildings should be set up, 2) Building maintenance works should be performed by the specialists, like licensed building manager, mechanical and electrical engineers, etc., 3) Long-range repair expenses should be laid by on the monthly base according to the long-range repair plan, 4) Regulations concerning the defect repair should be provided properly.

• YAKHAK HOEJI
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• v.38 no.6
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• pp.795-799
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• 1994

Some components and antitumor effect of antler and fermented antler with Bacillus P-92 were determined. By fermenting the antler with Bacillus P-92, the amount of free amino acids, polypeptides and other compounds were increased. The free amino acid of the fermented antler was 6-fold higher than those of the untreated antler. Sarcoma 180 cells were intraperitoneally implanted into ICR mice to determine the effect of fermented antler and untreated antler on life span prolongation. The life span of ICR mouse treated with antler and fermented antler were prolonged to 24.4% and 39.2%(p<0.05), and survival rates were 22% and 33%, respectively. In addition, the induction of neutrophil was 2.3-fold and 3.4-fold, respectively.

• Proceedings of the Korean Society of Applied Pharmacology
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• 2003.11a
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• pp.71-71
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• 2003

Methanol extract of Loranthus yadoriki showed the prolongation effect of bleeding time in vivo using mice in dose dependent manner. From the MeOH extract of Loranthus yadoriki, compound-A was isolated by the activity guided isolation method using silicagel column chromatography. The anti-coagulant activity was evaluated by the bleeding time test in vivo and plasma recalcification time test in vitro. Compound A showed moderate anti -coagulant activity on plasma recalcification time in vitro.

• Preventive Nutrition and Food Science
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• v.4 no.2
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• pp.117-121
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• 1999

The anititumor and immunologic activities of the glycoproteins extracted from sea cucumber (Stichopus japonicus) on mice bearing sarcoma 180 cells were investigated . Maximum tumor suppression (64%) occurred at the dose of 100mg glycoprotein/kg. The highest prolongation ratio was achieved at the level of 100mg/kg an dincreased by 395 more than that of control. Glycoproteins from sea cucumber exhibited direct cytotoxic effect on the tumor cells. Dose dependent increase of leucocyte, peritoneal exudate cell and weights of immunoorgans revealed the improvement of immunity. When the glycoportein-administered group was compared with the control, a significant difference was not noted in the clinico-chemical values such as S-GOT, S-GPT , alkaline phoshatse activity, total protein, cholesterol, triglyceride, urea nitrogen and glucose levels in blood. These results suggests that the antitumor activity of sea cucumber glycoprotein is associated with activation of cells in the immune system.