• Fashion & Textile Research Journal
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• v.21 no.6
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• pp.708-716
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• 2019

This study explored Jeju natural resources with healing function and tried mixed dyeing of Ecklonia cava and onion shell to improve dyeing. The results showed that silk dyed with a mixture of Ecklonia cava powder and onion shells rather than Jeju's individually dyed silk had better color power to develop fashion products. In addition, all friction lightning bolts, dry cleaning and sweat mining levels were excellent as well as excellent UV protection rates. The three baenaet jeogori worn during a birth anniversary and four rest suits that infants and children can wear comfortably maintained the dyeing and functioning of Ecklonia cava and onion shell mixture that was proven through abnormal experiments. For the three baenaet jeogori and two rest suits, the company has developed a fashion product recognized for high value-added merchandise using a variegation dyeing method made in a handmade style for expressing a person's natural sensibility through dyeing fabrics. Based on the results of the above research, it is expected that various fashion product developments will be possible by dyeing a mixture of functional and colorful extracts of the drug and colorful dye.

• Journal of Pharmaceutical Investigation
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• v.10 no.3
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• pp.33-45
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• 1980

In order to increase the solubility of metoclopramide, various ratio coprecipitates with polyvinylpyrrolidone (M.W. 40,000) were prepared. The experiments of the solubility, physicochemical characteristics were quantitatively developed. The solubility increased as the ratio of rnetoclopramide to polyvinylpyrrolidone in metoclopramide-polyvinylpyrrolindone coprecipitate increased. In powder state, the dissolution rate of metoclopramide-polyvinylpyrrolidone coprecipitate was greater than that of metoclopramide and metoclopramide-polyvinylpyrrolidone physical mixture. Dissolution characteristics of non-disintegrating disk with constant surfacearea was in accord with Noyes-Nernst equation. The intrinsic dissolution rate, G, at $37^{\circ}C$ was $3.98{\times}10^{-7}M/cm^2{\cdot}min$ for metoclopramide, $2.26{\times}10^{-6}\;M/cm^2{\cdot}min$ for 1 : 5 metoclopramide-polyvinylpyrrolidone coprecipitate, respectively. Accordingly, activation energy of metoclopramide was 15,061cal/M, 9,178cal/M for 1 : 5 metoclopramide-polyvinylpyrrolidone coprecipitate and the activation energy decreased as the coprecipitate was formed. X-ray diffraction study revealed the fact that metoclopramide was crystalline, in contrast, there was no crystallinity evident in the 1 : 5 metoclopramide-polyvinylpyrrolidone coprecipitate. There was no difference between physical mixture and coprecipitate in TLC, UV and NMR studies. From the comparision between physical mixture and coprecipitate in IR spectrum, the interaction such as association between metoclopramide and polyvinylpyrrolidone was considered. But the association was easily dissociated in methanol solution.

• Proceedings of the Korean Society for Applied Microbiology Conference
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• 2005.06a
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• pp.204-211
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• 2005

The technology of Solid-State-Fermentation (SSF) with corn straw by Pichia ohmeri T021 was studied in this article. After being crushed, the corn straw powder was added into vitriol solutions to hydrolysis, which the quality proportion of corn straw: water: vitriol (98%) is 20:80:1. The mixtures was incubated at 120$^{\circ}C$ for 1 hour, and the hydrolysis rate reached 19%. Following, the mixture was adjusted to pH 4.5 by sodium carbonate and added cellulase (25IFPU/g). The hydrolysis rate reached 15% after the mixture was incubated at 50$^{\circ}C$ for 25h. The mixture which hydrolysed by vitriol was inoculated by Pichia ohmeri T021 (5${\times}10^7$cell/g) and added cellulase (25 IFPU/g) at the same time. The ethanol yield reached 2.99g per 100 gram substrate after the fermenting grains was incubated at 33$^{\circ}C$, pH 4.5 for 5 days.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2009.05b
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• pp.53-56
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• 2009

This study reviewed the characteristics of concrete made of performance improving mixture materials based on KOH as a means to resolve the problems of initial quality reduction that result in concretes with blast furnace slag powder. Summarizing the results, first as the characteristics of fresh concrete, liquidity was found to reduce in general with increased BS substitution ratio. Objective range of liquidity was not satisfied in all mixes according to the use of performance improving mixture materials. Air capacity was satisfied to the objective range in all mixes. As the characteristics of hardened concrete, while compressive strength showed a decreasing trend with increasing BS substitution ratio at early age, increasing trend was shown by the plain with increasing BS substitution ratio at later age. On the other hand, K1 and K2 were only effective among mixture materials at early age, but K1F30 showed excellent strength at both early and later ages.

• Journal of the Korean Ceramic Society
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• v.27 no.1
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• pp.118-126
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• 1990

Titanium Cabride powders were prepared by the self-propagating high temperature synthesismethod in air from the mixture of metal titanium powder and carbon powder. The result are as follows : 1. The conversion effciency of higher than 95% can be obtained and the lattice constant value of the product was 4.322$\AA$. 2. The combustion mode, velocity and temperature of combustion wave was photographed using high-speed camera, and showed steady-state, velocity of 15.414mm/sec at 250$0^{\circ}C$. 3. The relative density and MOR strength of TiC sintered at 180$0^{\circ}C$ for 90 minutes by hot-pressing under the pressure of 200kg/$\textrm{cm}^2$ were 95% and 395MPa, respectively.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2002.05a
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• pp.7-12
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• 2002

The purpose of this study is to design and to apply the self-compaction concrete mixture to field, having not only high strength but also compensation for shrinkage without thermal crack under 4 sides outer restraint of the member. In the experimental mix, replacement ratio of limestone Powder, CSA expansive additives, and unit water were selected as parameters, using portland blast-furnace slag cement. And, bleeding test, expansibility test, hydration heat analysis were performed. As a results, when Cement is replaced with 35% limestone Powder, 6% CSA expansive additives at unit water 175kg/$m^3$, demanded performances of fresh and hardened self-compaction concrete are accomplished in the field application.

• Korean Journal of Pharmacognosy
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• v.34 no.1 s.132
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• pp.1-5
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• 2003

'Cheong Wi Dan (淸胃丹)' is a Chinese patent preparation which has been used for various diseases in Korea. This preparation consists of 19 powder crude drugs. Cheong Wi Dan is used for catarrh of the gastrointestines, indigestion, a pain in the chest and nausea. The microscopic method is ve교 useful to identify individual gradients in powdery mixture because it requires only a small amount of specimens. In this study, it is demonstrated that the microscopic method is very useful for the identification of 19 crude drug ingredients included in Cheong Wi Dan.

• Journal of Yeungnam Medical Science
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• v.28 no.2
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• pp.145-152
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• 2011

Background: To evaluate the changes in the radiation dose and temperature distribution on irradiated egg albumin and nanoparticle ($Fe_3O_4$) powder mixed egg albumin. Methods: A new type of phantom was designed by fabricating a $30{\times}30{\times}30cm$ acryl square inside a $3{\times}3{\times}3cm$ small square and dividing it into two parts. In the control group, only egg albumin was irradiated, and in the test group, 25 nm 20 mg/cc, 25 nm 40 mg/cc, and 1 um 40mg/cc nanoparticles with egg albumin were irradiated. The radiation isodose distributions and temperature changes were then observed. Results: No significant changes were observed in the radiation dose and temperature distribution. Conclusion: The nanoparticles were considered not to have had any effect on the radiation dose and temperature distribution under the experimental conditions. Further studies can be conducted based on the changes in the mixture material.

• Journal of Powder Materials
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• v.16 no.3
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• pp.173-179
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• 2009

In the present study, Zr-base metallic glass(MG)/diamond composites are fabricated using a combination of gas-atomization and spark plasma sintering (SPS). The densification behaviors of mixtures of soft MG and hard diamond powders during consolidation process are investigated. The influence of mixture characteristics on the densification is discussed and several mechanism explaining the influence of diamond particles on consolidation behaviour are proposed. The experimental results show that consolidation is enhanced with increasing diamond/Metallic Glass(MG) size ratio, while the diamond fraction is fixed.

• Journal of the Korean Society of Safety
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• v.31 no.4
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• pp.82-89
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• 2016

In this paper, various of experiments were performed for checking the usefulness of Pozzolan Inorganic Polymer(PIP) Waterproof Admixture. The results of the experiment enabled to set the optimum mixture ratio of PIP waterproof admixture as 3.5%. Then, the test specimen mixed with PIP waterproof admixture was produced and consider whether meeting the quality standard of waterproofing admixture for concrete (KS F 4926) From the results, all the items such as mechanical properties and durability were meet the quality standard of KS. The PIP waterproof admixture concrete shows the high resistance of absorption, permeability and chloride ion penetration thanks to its internal components such as siliceous powder, zinc stearate and dispersive polymer.