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발효기 종류에 따른 Cordyceps militaris에 의한 생물고분자 생산
이중헌,김경주 조선대학교 생산기술연구소 2005 生産技術硏究 Vol.27 No.1
The effects of fermenter types on biopolymer production with Cordyceps militaris has been studied in this articles. Since the shear stresses of stirred tank ferementor and bubble column fermenter were different. the mycelium growth and biopolymer production were different, The mycerial growth was high with the bubble column fermenter for the early stage but biopolymer production was lower than that with stirred tank fermenter. The production of biopolymer was closely related to shear stress to the cells and biopolymer production was increased with increased shear stress.
EDDS가 바이오에너지 작물의 중금속 흡수에 미치는 영향
이중헌,성기준,Lee, Junghun,Sung, Kijune 한국지하수토양환경학회 2015 지하수토양환경 Vol.20 No.4
Plants grown in metal-contaminated sites have to be managed and disposed of safely even in phytoremediation because heavy metals can be transferred to other organisms through the food chain, which could result in bioaccumulation in organisms of a higher trophic level. However, if the harvested plants could be used for bioenergy, the ecological risk is reduced and phytoremediation improves economic feasibility. This study researched the effects of EDDS (Ethylenediamine disuccinate) on the heavy metal uptake performance of Brassica campetris and Sorghum biocolor, both of which have potential as bioenergy plants. The results showed that EDDS could increase Pb, Cu, Ni, Cd, and Zn concentrations in the roots and shoots of both of these plants. Furthermore, EDDS reduced the metal inhibition of the S. bicolor length growth. The translocation factors (TF) of S. bicolor and B. campestris are smaller than one for all five heavy metals tested and decreased by the following order: heavy metal + EDDS > heavy metals only > uncontaminated soil. The results suggest that with regard to plant growth and metal accumulation, S. bicolor treated with EDDS is more suitable than is B. campestris for the phytoremediation of soils contaminated with multiple metal species.
The development of new anthracene derivative for OLEDs
이중헌,류재민,송기현,김민아,박창근,박종욱 한국공업화학회 2015 한국공업화학회 연구논문 초록집 Vol.2015 No.0
In this study, a blue emission layer of the OLED materials used to synthesize the novel as was Anthracene derivative. Anthracene component by applying the blue light emitting element being applied to the design of a new structure, and Le was derivatives synthesized by the Suzuki Coupling, by applying this device was compared with the commercially available material MADN. MADN than to implement the CIE value of the 0.78 lm / W and (0.16,0.15), new material by implementing the color of efficiency of about 0.98 lm / W and (0.15.0.10) lower than the commercial materials difficult Y-axis value the lowering of the material was synthesized better blue purity.