• Journal of the Korean Society of Food Science and Nutrition
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• v.23 no.5
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• pp.845-848
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• 1994

The fermenting conditions for acetic acid production with Acetobacter sp. FM-10 which could grow in the medium containing 10% ehtanol were investigated. Initial concentration of acetic acid in broth medium affected greatly to the fermentation speed. For example , the acetic acid production increased proportionally by the increasing of initial concentration was higher that 1.0%. When the cultivation was started with broth medium containing 5% ethanol, the additional adding ethanol during the fermentation was not significantly increased the acidity of the medium. The acidity of the medium containing 10% ethanol was reached to 8.3% after shaking than static cultivation by about 10 days with 150 rpm shaking speed. Acetic acid production with shaking cultivation was faster the static cultivation by abot 10 days under the same condition except shaking. In acetic acid fermentation with the batch style fermentor , the optimum fermentation condition was 700 rpm of agitation speed and 5L/min air flow rate in 3L culture medium .

• Asia pacific journal of information systems
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• v.14 no.3
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• pp.145-167
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• 2004

Given the increasing of adoption of the SCM(Supply Chain Management), especially in small and medium-sized enterprises, this study aims at identifying the key influencing factors of small and medium-sized enterprises' SCM adoption. Based on prior research on innovation diffusion theory, TPB(Theory of Planned Behavior), and IT/EDI adoption in various organizations, a model of SCM adoption has been developed and empirically tested hypotheses based on the model. The model was tested using LISREL analysis on the sample collected from 127 small and medium-sized enterprises' top management. The results show that perceived behavioral control is found to have a significant positive effect on adoption intention, and attitude and subjective norm are also important determinants of SCM adoption intention in small and medium-sized enterprises. Implications of these findings are discussed for researchers and practitioners.

• The Plant Pathology Journal
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• v.30 no.4
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• pp.432-436
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• 2014

The soil-borne ascomycete fungus Cylindrocarpon destructans causes ginseng root rot disease and produces various secondary metabolites such as brefeldin A and radicicol. The slow growth of this fungus compared with other plant pathogenic and saprophytic fungi in soil disturbs isolation of this fungus from soil and infected ginseng. In this study, we developed a selective medium for C. destructans using radicicol produced by this fungus. Supplementing 50 mg/L of radicicol to medium inhibited the mycelia growth of other fungi including Botrytis cinerea, Rhizoctonia solani and Alternaria panax, but did not affect the growth of C. destructans. In addition, conidia germination of other fungal species except for C. destructans was inhibited in submerged culture supplemented with radicicol. This medium provides a very efficient tool for isolating C. destructans and also can be used as an enrichment medium for this fungus.

• The Korean Journal of Mycology
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• v.29 no.1
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• pp.52-60
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• 2001

This study was carried out to obtain the basic data on artificial culture of Hohenbuehelia petaloides. The optimum medium are glucose peptone medium (GP), Hennerberg medium, Phellinus igniarius medium (PIM), Lentinus edodes medium (LEM), Czapek dox medium. The optimum condition for the mycelial growth was $30^{\circ}C$ and pH 6.0. The carbon sources such as dextrine, fructose and lactose were favorable to mycelial growth. The optimal concentrations of carbon sources are 10% dextrin and fructose. As nitrogen sources, tryptone, casamino acid and histidine appeared to be favorable. The optimal concentrations of nitrogen sources are 1% soy tone and 0.3% ammonium nitrate. The optimal concentration of yeast extract is 0.4%. The mineral nutrients of $KH_2PO_4$, $K_2HPO_4\;and\;MgSO_4{\cdot}7H_2O$ were effective and the optimal concentrations were 0.046, 0.1 and 0.05%, respectively.

• Journal of the Korean Institute of Electrical and Electronic Material Engineers
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• v.23 no.6
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• pp.464-470
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• 2010

A new method for the poling of piezoelectric ceramics with an air insulation medium in stead of silicon oil is described. A similar variation of electromechanical coupling coefficient $K_t$, for an air medium is observed in comparison to that of the material poled by the conventional poling method using a silicon oil medium. Different poling parameters such as dielectric constant $\varepsilon^T$ and frequency deviation ${\Delta}f$ are studied as well as the influence on the aging effect. The required poling factors to achieve the optimal piezoelectric characteristics are electric field, 2 kV/mm, temperature $100^{\circ}C$, and poling time 30 Min. From this result electric field 3 kV/mm atmosphere airs there being will be able to use with the polarization insulation medium about the piezoelectric material, confirmed.

• Advances in nano research
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• v.9 no.2
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• pp.69-82
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• 2020

In this paper, a new explicit analytical formula is derived for the critical buckling load of Double Walled Carbon Nanotubes (DWCNTs) embedded in Winkler elastic medium without taking into account the effects of the nonlocal parameter, which indicates the effects of the surrounding elastic matrix combined with the intertube Van der Waals (VdW) forces. Furthermore, we present a model which predicts that the critical axial buckling load embedded in Winkler, Pasternak or Kerr elastic medium under axial compression using the nonlocal Donnell shell theory, this model takes into account the effects of internal small length scale and the VdW interactions between the inner and outer nanotubes. The present model predicts that the critical axial buckling load of embedded DWCNTs is greater than that without medium under identical conditions and parameters. We can conclude that the embedded DWCNTs are less susceptible to axial buckling than those without medium.

• Microbiology and Biotechnology Letters
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• v.23 no.5
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• pp.519-525
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• 1995

This study was carried out to enhance the production of sisomicin by Micromonospora inyoensis ATCC 276000. The effect of various sugars and organic acids as the supplements to a basal mineral medium was tested for the sisomicin production by fully grown mycelium. Among the substances tested, acetate and citrate greatly increased the production of sisomicin at the sixth day of culture. Especially, in the basal mineral medium containing 0.1M sodium acetate, sisomicin production was 6.7 times more than that in the same medium with glucose. When 0.1M sodium acetate was added in the fermentation medium initially, the cell growth was inhibited by sodium acetate, although specific productivity was higher than that in the same medium without sodium acetate. On the contrary, when sodium acetate was added to the culture after three days, the sisomicin production and specific productivity were 1.6 times higher than those in the same medium without sodium acetate. The results suggested that sodium acetate was a stimulating substance of sisomicin production by M. inyoensis.

• The Korean Journal of Mycology
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• v.44 no.1
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• pp.31-35
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• 2016

This study was conducted to test whether post-harvest medium of king oyster mushroom can be recycled for its bottle cultivation. Physical properties of the post-harvest medium and the resulting yield of fruit bodies revealed no significant difference compared with control. Recycling post-harvest medium can be replaced to 15% of the basal medium, thus decreasing the cost of raw materials up to 15%.

• Proceedings of the KSR Conference
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• 2010.06a
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• pp.338-343
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• 2010

This paper's purpose is to support the strategies of the Small and Medium Railroad industries requiring certifications and products inspections. This study's objects are Small and Medium Railroad enterprises pursuing the making products, development and serving services. Research's questions consist of 14 principal questions and some incidental questions which are made for finding out what Small and Medium Railroad enterprises need. This research's result will be used for KRRI Railroad Testing & Certification Center's study. This study will include market research, deciding strategies and setting a range of supporting level for Small and Medium Railroad enterprises who request a test and certification service. After due consideration based on surveys, this paper makes clear what enterprises need actually, also indicates the strategic ways to support by technology transfer and test assistance for Small and Medium Railroad enterprises.

• Journal of Plant Biology
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• v.12 no.2
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• pp.1-6
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• 1969

Effects of the special media on the mycelium growth in Agaricus campestris were studied. The results might be summarized as follows: 1. The mycelium growth fo Agaricus campestris were scarecely stimulated on the Peptone basal medium which was added 0.5gr. of Peptone and Dextrose basal medium which was added 1.5gr. of dextrose during the culture for 144 hours. 2. The mycelium of Agaricus campestris on the media which was added the several kinds of vegetable extracts showed a considerable growth for 144 hours. The order is as follows; Carrot-basal medium(4ml./100ml.)>Tomato-basal medium(2ml./100ml.)>Spinach-basal medium(3ml./100ml.). However, the spinach-basal medium among these three media were no significant difference.