• Journal of Pharmacopuncture
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• v.11 no.2
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• pp.75-79
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• 2008

Objectives This study was done to investigate the safety of Soyeom pharmacopuncture solution manufactured with freezing dryness method to use eye drop. Methods The eye irritation test of this material was performed according to the Regulation of Korea Food & Drug Administration(2005. 10. 21, KFDA 2005-60). After Soyeom pharmacopuncture solution was medicated in the left eye of the rabbits, the auther observed eye irritation of the cornea, iris, conjunctiva at 1, 2, 3, 4 & 7day. Results 1. After Soyeom pharmacopuncture solution was medicated in the left eye of the rabbits, there wasn't physical problem at 9 rabbits. 2. After Soyeom pharmacopuncture solution was medicated in the left eye of the rabbits, there wasn't eye irritation of the cornea, iris, conjunctiva at 1, 2, 3, 4 & 7day. Conclusions I suggested that Soyeom pharmacopuncture solution didn't induced eye irritation in rabbits.

• Journal of Pharmacopuncture
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• v.11 no.2
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• pp.81-85
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• 2008

Objective This study was done to investigate the safety of Bovis Calculus pharmacopuncture solution manufactured with freezing dryness method to use eye drop. Methods The eye irritation test of this material was performed according to the Regulation of Korea Food & Drug Administration (2005. 10. 21, KFDA 2005-60). After Bovis Calculus pharmacopuncture solution was medicated in the left eye of the rabbits, the auther observed eye irritation of the cornea, iris, conjunctiva at 1, 2, 3, 4 & 7day. Results 1. After Bovis Calculus pharmacopuncture solution was medicated in the left eye of the rabbits, there wasn't physical problem at 9 rabbits. 2. After Bovis Calculus pharmacopuncture solutionwas medicated in the left eye of the rabbits, there wasn't eye irritation of the cornea, iris, conjunctiva at 1, 2, 3, 4 & 7day. Conclusions I suggested that Bovis Calculus pharmacopuncture solution didn't induced eye irritation in rabbits.

• Journal of Pharmaceutical Investigation
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• v.35 no.5
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• pp.337-341
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• 2005

The purpose of the study was to prepare the pegylated liposome carrying plasmid DNA with optimal encapsulation efficiency. Plasmid DNA (pCEP4 clone 790, 10.6 kb) was entrapped in the pegylated liposome composed of neutral lipid, POPC (l-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine), cationic lipid, DDAB (dimethyl dioctadecyl ammonium bromide) and anionic lipids, DSPE-PEG 2000 (distearoyl phosphatidyl ethanolamine polyethylene glycol 2000) and DSPE-PEG 2000-maleimide by freezing/thawing method. Free plasmid DNA was separated from the encapsulated one by Sepharose CL-4B column chromatography. The DNA amount encapsulated into the pegylated liposome was increased as cationic lipid concentration, initial amount of plasmid DNA and total lipid amount were increased.

• Journal of The Korean Society of Agricultural Engineers
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• v.52 no.2
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• pp.19-25
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• 2010

This study was conducted to determine the resilient modulus (Mr) and the unconfined compressive strength (UCS) of two recycled roadway materials such as recycled pavement material (RPM) and road surface gravel (RSG) with or without cement kiln dust (CKD). The recycled materials were blended with two CKD contents (5, 10 %) and 28 day curing time. Mr and UCS tests were also conducted after 10cycles of freezing and thawing to asses the impact of freeze-thaw cycling. Mr was determined conducting by the laboratory test method described by NCHRP 1-28A. Stabilized RPM and RSG had a modulus and a strength higher than unstabilized RPM and RSG. Mr and UCS of RPM and RSG mixed with CKD increased with increasing CKD content. The results indicated that the addition of CKD could be improved the strength and the stiffness of RPM and RSG. Therefore, RPM, RSG and CKD could be used as an effective materials in the reconstruction of roads.

• Proceedings of the Korea Concrete Institute Conference
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• 2006.05b
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• pp.241-244
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• 2006

The basic prediction model was constructed to obtain optimal maintenance method for concrete structure under marine environment by exploring the mechanism of mono and combined deterioration in lab. This model was planned to be upgraded with data acquired from several exposure specimens under same environment as structures. The computer program developed to give useful guidance observer would be improved. Several repair materials and repair construction methods applied to exposure specimens will be tested for its performance of prohibit salt attack and freezing & thawing action during experimental period about ten years. All of these data could be available to complete the prediction system. The manager will be able to use the system for optimal maintenance of marine concrete structures.

• Proceedings of the Korea Concrete Institute Conference
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• 2006.05b
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• pp.329-332
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• 2006

This paper presents the experimental results for durability of an ECC designed with ground granulated blast furnace slag (BFS) through the test method of chloride ion resistance and freezing-thawing resistance. In order to compare with ECC, normal mortar was also tested. Test results showed that BFS ECC exhibited higher durability performance than ordinary mortar. These results suggest that by adding BFS in ECC, its matrix density is increased which results in decreased of deterioration and it also adds to the fiber bridging that contributes in control of cracking.

• Proceedings of the Korea Concrete Institute Conference
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• 2009.05a
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• pp.265-266
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• 2009

To know the thermal-moisture condition of the concrete is very important to expect the concrete durability such as chloride attack, carbonation, alkali-aggregate reaction, freezing damage. The purpose of this study is to establish the temperature-moisture coupled model which is based on the finite element method and measure temperature and relative humidity under the exposured condition.

• Proceedings of the Korea Concrete Institute Conference
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• 2005.11a
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• pp.531-534
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• 2005

The basic prediction model was constructed to obtain optimal maintenance method for concrete structure under marine environment by exploring the mechanism of mono and combined deterioration in lab. This model was planned to be upgraded with data acquired from several exposure specimens under same environment as structures. The computer program developed to give useful guidance observer would be improved. Several repair materials and repair construction methods applied to exposure specimens will be tested for its performance of prohibit salt attack and freezing & thawing action during experimental period about ten years. All of these data could be available to complete the prediction system. The manager will be able to use the system for optimal maintenance of marine concrete structures.

• Journal of Environmental Science International
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• v.7 no.3
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• pp.263-268
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• 1998

Decolorization of congo red, rhodamlne B was investigated by the white rot fungus Irpex lacteus welch has biodegrading capability of various recalcitrants. White rot fungus Irpex lacteus is Immobilized by PVA-freezing method. An Immobilized Irpex lacteus decolorizes 91% of congo red In 8 days under culture with glucose 2%(Initial cone.). It also showed 70% of decolorization at 3 days In the state of putting MnSO4 1mM. But, rhodauune B has no significant differences about decolorization among different mixture ratio of Irprx lacteus with PVA, concentration of carbon, nitrogen and manganese sulfate.

• Proceedings of the KSME Conference
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• 2000.11b
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• pp.241-246
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• 2000

Gas hydrates are solid solutions when water molecules are linked through hydrogen bondin create host lattice cavities that can enclose a large variety of guest gas molecules. The natural hydrate crystal may exist at low temperature above the normal freezing point of water and pressure greater than about 30 bars. A lot of quantities of natural gas hydrates exists in the ear many production schemes are being studied. In the present investigation, depressurization method considered to predict the production of gas and the simulation of the two phase flow - gas and - in porous media is being carried out. The simulation show about the fluid flow in porous have a variety of applications in industry. Results provide the appearance of gas and water prod the pressure profile, the saturation of gas/ water/ hydrates profiles and the location of the pl front.