• Proceedings of the Materials Research Society of Korea Conference
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• 2003.03a
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• pp.239-239
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• 2003

As a result of the recent miniaturization and enhancement in the performance of thin film inductors and thin film transformers, there are increased demands for the thin films with a high magnetic permeability in the high frequency range, a high saturation magnetization, a high electrical resistivity, and a low coercive force. In order to improve high frequency properties, we will investigate anisotropy field by shape and size of pattern. The Fe-Al-O thin films of 16mm diameter and 1$\mu\textrm{m}$ thickness were deposited on Si wafer, using RE magnetron reactive sputtering technique with the mixture of argon and oxygen gases. The fabricating conditions are obtained in the working partial pressure of 2m Torr, O$_2$ partial Pressure of 5%, Input power of 400w, and Al pellets on an Fe disk with purity of 99.9%. For continuous thin film is the 4Ms of 19.4kG, H$\sub$c/ of 0.6Oe, H$\sub$k/ of 6.0Oe and effective permeability of 2500 up to 100MHz. In this work, we expect to enhanced effect of magnetic anisotropy on patterned of Fe-Al-O thin films.

• The Journal of Pediatrics of Korean Medicine
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• v.7 no.1
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• pp.1-16
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• 1993

Experimental studies were done to research the clinical effect of Woohwangporhyonghwan(minus REALGAR and CINNABARIS) and Saengnyosamultang on the Anti-allergie effect in rats and mice. The results obtained as follows: 1. (1) In the effects of Woohwangporhyonghwan(minus REALGAR and CINNABARIS) and Saengnyosamultang on vascular permeability responses to intradermal histamin in rats, Woohwangporhyonghwan(minus REALGAR and CINNABARIS) and Saengnyosamultang revealed significant effect. (2) In the effects of Woohwangporhyonghwan(minus REALGAR and CINNABARIS) and Saengnyosamultang on vascular permeability responses to intradermal serotonin in rats, Woohwangporhyonghwan(minus REALGAR and CINNABARIS) revealed significant effect. 2. In the 48 hour homologous passive cutaneous anaphylaxis in rats provoked by the Ig E-like antibody against egg albumin, Woohwangporhyonghwan(minus REALGAR and CINNABARIS) and Saengnyosamultang revealed significant effect. 3. In the delayed type hypersensitivity responses to picryl chloride in mice, Woohwangporhyonghwan(minus REALGAR and CINNABARIS) revealed significant effect. 4. In the delayed type hypersensitivity responses to SRBC(Sheep Red Blood cell) in mice, Woohwangporhyonghwan(minus REALGAR and CINNABARIS) and Saengnyosamultang revealed significant effect. According to above-stated results, Woohwangporhyonghwan(minus REALGAR and CINNABARIS) and Saengnyosamultang were concluded to be effective as anti-allergic regimen and recommended to be used for treatment of allergic diseases.

• The Journal of Pediatrics of Korean Medicine
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• v.5 no.1
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• pp.15-27
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• 1991

Experimental studies were done to research the clinical effects of Yongdamsagantang and Yongdamsagantang-gamibang (Yongdamsagantang with Lonicerae Flos and Forsythiae Fructusadded) on the Anti-allergic effect in rats and mice. The results obtained as follows; 1. In the effects of Yongdamsagantang and Yongdamsagantang-gamibang on vascular permeability responses to intradermal histamine in rats, Yongdamsagantang group revealed none significant affect, but Yongdamsagantang-gamibang group revealed significant effect. 2. In the effects of Yongdamsagantang and Yongdamsagantang-gamibang on vascular permeability responses to intradermal serotonin in rats, Yongdamsagantang and Yongdamsagantang-gamibang group revealed significant effect. 3. In the 48hrs homologous passive cutaneous anaphylaxis in rats provoked by the IgE-like antibody against egg albumin, Yongdamsagantang group revealed none significant effect, but Yongdamsagantang-gamibang group revealed significant effect. 4. In the delayed type hypersensitivity responses to Picryl Chloride in mice, Yongdamsagantang and Yongdamsagantang-gamibang group revealed none significant effect, in the delayed type hypersensitivity responses to SRBC in mice, Yongdamsagantang group revealed none significant effect, but Yongdamsagantang-gamibang group revealed significant effect. According to above-stated results, Yongdamsagantang is none significant Anti-allergic effect. But Yongdamsagantang-gamibang is concluded to be effective as immediated type hypersensitivity and recommended to be used for the treatment of allergic diseases. (Asthma, Allergic urticaria, Allergic rhinitis, etc.)

• Proceedings of the Korean Society for Applied Microbiology Conference
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• 2001.06b
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• pp.14-16
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• 2001

The outer membrane (OM) of gram-negative bacteria acts as an effective permeability barrier against noxious agents including several antibiotics and organic solvents, and lipopolysaccharide (LPS) is the key molecule for this function. Outer membrane modified mutants (Ml-166, M2-42, M3-21) of E. coli DH5$\alpha$/pBSl were selected through a mutation using EMS (ethyl-methane-sulfonate). Among the selected mutants, M3-21 was twice as sensitive as LumisTo $x^{ }$ to benzene and M2-41 was 8 times as sensitive as LumisTo $x^{ }$ to toluene. To identify the structural change in the membrane by mutation, the relative cell surface hydrophobicities and the absorption of the crystal violet to the organisms were measured. All the mutants absorbed more crystal violet than their parent and the absorption of crystal violet increased in cell walls as carbohydrate of lipopolysaccharide decreased. When the cell surface hydrophobicities of DH5/pBSl and its mutants were measured by the BATH, the hydrophobicities of mutants increased compared to their parent in several organic solvents. The difference of lipopolysaccharide between DH5/pBSl and its mutants was identified by various ways such as the SDS-PAGE gel, the screening of LPS molecular weights, the mass spectrometry, and MALDI-TOF.F.

• Journal of the Korea Institute of Building Construction
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• v.12 no.3
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• pp.291-298
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• 2012

For cold weather concreting, frost damage at early age is generated in the concrete, and problems such as delaying of setting and hardening and lowering of strength manifestation emerge due to the low outside air temperature at the early stage of pouring, making the selection of an effective curing method critically important. Unfortunately, the tent sheet currently used as the curing film for heating insulation at work sites, not only has the problems of inferior permeability and extremely deteriorated airtightness, but a phenomenon of continuous fracturing is also generated along the direction of fabric of the material itself, presenting difficult circumstances for maintaining adequate curing temperature. The aim of this study was to develop an improved bubble sheet type curing film for heating insulation of cold weather concrete by combining mesh-tarpaulin, which has excellent tension properties, with bubble sheet, which offers superior insulation performance. The analysis showed that the improved curing film in which BBS1 is stacked to MT was a suitable replacement for curing films currently in use, as it has better permeability, tension property, and insulation performance than the T type film used at work sites today.

• Journal of the Korean Geotechnical Society
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• v.19 no.1
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• pp.163-172
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• 2003

The engineering properties of composite silicate grout materials that were developed recently were analyzed. In this laboratory tests, OPC (Ordinary Portland Cement) was mainly used as grout materials. Moreover, the properties of composite silica, silica sol and sodium silicate (No.3) acting as coagulating agent were analyzed and compared with each other. For the purpose of finding the engineering properties of composite silicate grout materials, various physical and chemical tests were performed : naked eye measurement, photographing by using SEM, uniaxial compression test and in-situ application test. A series of test results showed that the strength of composite silicate grout materials was about 3～6 times that of ordinary sodium silicate grout materials in 6～24hr. Especially, based on the evaluation of the application of JS-CGM grout to the construction fields, composite silicate grout would be very effective in reducing the coefficient of permeability.

• The Journal of Pediatrics of Korean Medicine
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• v.6 no.1
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• pp.1-14
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• 1992

Experimental studies were done to research the clinical effects of Juguieum and Juguieum-gamibang(Juguieum with Lonicerae Flos and Forsythiae Fructus added) on the Antiallergic effect. The results obtained as follows; 1. In the effects of Jugieum and Jugieum-gamibang on vascular permeability responses to intradermal histamine, Juguieum group revealed none significant effect, but Jugieum-gamibang group revealed significant effect. 2. In the effects of Juguieum and Juguieum-gamibang on vascular permeability responses to intradermal serotonin, Juguieum and Juguieum-gamibang groups revealed significant effect. 3. In the 48hrs homologous passive cutaneous amaphylaxis provoked by the IgE-like antibody against egg albumin, Juguieum and Juguieum-gamibang groups revealed significant effect. 4. In the delayed type hypersensitivity responses to Picryl Chloride, Juguieum and Juguieum-gamibang groups revealed significant effect. 5. In the delayed type hypersensitivity responses to SRBC, Juguieum group revealed significant effect, but Jugieum-gamibang group revealed none significant effect. According to above-stated results, Juguieum and Juguieum-gamibang are concluded to be effective as anti-allergic regimen and recommended to be used for the treatment of type I and type IV allergic disease.

• Journal of Korea Technical Association of The Pulp and Paper Industry
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• v.43 no.3
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• pp.21-29
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• 2011

Recently, the use of recycled fibers was increased in order to replace the virgin pulp for low production cost and forest conservation. However, the recycled fibers decreases drainage rate, papermaking efficiency and product quality by short fibers and low wettability because of hornification. To overcome the limitation of low drainage rate, the technology of organic fillers were applied. Wooden fillers gave high bulk and stiffness of paper, but they reduced the strength of paper. In order to improve strength properties 4 types of strength additives were added and analyzed. Cationic starch, branched strength additive, linear wet strength additive, and linear dry strength additive were used. The drainage rate and paper properties such as bulk, air permeability and tensile strength were measured. As results of analysis, addition of branch type of strength agent such as C-starch was effective than linear type of strength agent in the drainage rate. Nevertheless there was no effect on the drainage rate by adding the pretreated wooden fillers. By adding the pretreated wooden fillers, bulk, air permeability and tensile strength of handsheets were improved with low dosage than non-pretreated fillers.

• Journal of the Society of Cosmetic Scientists of Korea
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• v.24 no.3
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• pp.38-44
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• 1998

The skin permeation and the skin primary irritation of two UV filters from caprylic capryl triglyceride (oil), oil in water (O/W) and water in oil (W/O) emulsions, were evaluated. We selected octyl moth-oxycinnamate (OMC) broadly used in cosmetics and polymeric sunscreen agent (PSA, average MW: 2,000) synthesized by the coupling reaction of 2-ethylhexyl 4-hydroxycinnamate with poly vinylbenzyl chloride, as model UV filters. For in vitro skin permeation experiments, Franz diffusion cells (effective diffusion area:1.766cm) and the excised skin of female hairless mouse aged 8 weeks were used. Oil or emulsion containing UV filters was applied in the donor compartment. The skin primary irritation was evaluated with fe-male guinea pigs (8-10 weeks,350-400 g). In oil and emulsions, the skin permeability and the skin primary irritation of PSA were lower than those of OMC. The skin permeability of UV filters was lower when they were in oil-in-water emulsion (OIW) than water-in-oil emulsion (W/O). We suggest that O/W system would be more useful when compared with W/O system, and PSA could be a good candidate for a future sunscreen agent for reducing the skin irritation.

• Korean Journal of Agricultural Science
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• v.40 no.3
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• pp.253-260
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• 2013

In this study, laboratory model test carried out to present the suitable range of particle size distribution and clogging behavior of recycled aggregates and crushed stone as horizontal drains in soft ground. The recycled aggregates and crushed stone showed clogging phenomenon because the top fill material and bottom clay inflow into the horizontal drains. The pp mat was the most effective method to minimize clogging phenomenon. The horizontal coefficient of permeability in case of installing the pp mat showed largely 2.1 times more than the case of not installing. When the pp mat is not installing, the thickness of fine grained soil inflow into the horizontal drains showed 6.7~13.3% range in top fill material and 3.3~6.7% range in bottom clay. Overall, the reduction of the discharge capacity by fine grained soil inflow showed small in recycled aggregates and crushed stone. Also, the appropriate criterion range of particle size distribution is presented to make use of a horizontal drains in soft ground on the basis of laboratory test.