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  1. No Access

    Article

    A Novel Galactoglucomannan Exopolysaccharide Produced by Oil Fermentation with Pseudozyma sp. SY16

    Recently, the production of exopolysaccharide from Pseudozyma sp. SY16, which is mannosylerythritol lipid-producing yeast, has been occasionally observed during industrial fermentations. Moreover, exopolysacchari...

    Kwang Nyeon Kim, Yong Jae Lee, Dae-Hyun Cho… in Biotechnology and Bioprocess Engineering (2020)

  2. No Access

    Article

    Graphene Oxide-Hydrogen Membrane Fuel Cell

    Proton exchange membrane fuel cell (PEMFC) utilizes polymer electrolyte membrane, e.g., Nafion™, which is a perfluorosulfonic acid (PFSA) membrane with many disadvantages such as expensive, low mechanical stre...

    Md Shahjahan Kabir Chowdury, Sung Bum Park… in International Journal of Precision Enginee… (2020)

  3. No Access

    Article

    Effect of particle size distribution on microstructure and mechanical properties of spark-plasma-sintered titanium from CP-Ti powders

    The aim of this study was to determine the effect of particle size distribution on the microstructure and mechanical properties of spark-plasma-sintered titanium made from commercial pure titanium (CP-Ti) powd...

    Je Ha Shon, In-Beom Song, Kyeong-Sik Cho… in International Journal of Precision Enginee… (2014)

  4. No Access

    Article

    Enhanced hydrophobicity of GDL by a novel coating process in PEM fuel cells

    The microstructure of the developed GDL containing MPL was analyzed by SEM/EDX by observing the surface and cross section of the specimen. The properties such as viscosity, electric conductivity, density, poro...

    Gug-Ho Yoon, Yong-il Park in International Journal of Precision Enginee… (2012)

  5. No Access

    Article

    Fabrication of gas diffusion layer (GDL) containing microporous layer using flourinated ethylene prophylene (FEP) for proton exchange membrane fuel cell (PEMFC)

    Proton exchange membrane fuel cell (PEMFC), also known as polymer electrolyte membrane fuel cell, is the type of fuel cell being developed for transport applications as well as for stationary and portable appl...

    Sung Bum Park, Yong-il Park in International Journal of Precision Enginee… (2012)

  6. No Access

    Article

    Purification and characterization of a polysialic acid-specific sialidase from Pseudomonas fluorescens JK-0412

    An enzyme with polySia degrading activity was purified from a culture filtrate of Pseudomonas fluorescens JK-0412 to apparent homogeneity using DEAE-Sepharose CL-6B column chomatography and fast performance liqui...

    Jae Kweon Park, Doo ** Choi, Sung Min Kim… in Biotechnology and Bioprocess Engineering (2012)

  7. No Access

    Article

    Characterization and immunostimulating activity of a water-soluble polysaccharide isolated from Haematococcus lacustris

    A water-soluble polysaccharide was isolated and purified from the culture filtrate of the photosynthetic green microalgae Haematococcus lacustris by 75% ethanol precipitation and Sepharose CL-6B column chromatogr...

    Jae Kweon Park, Z.-Hun Kim, Choul Gyun Lee… in Biotechnology and Bioprocess Engineering (2011)

  8. No Access

    Article

    Sialic acids inTrichoplusia ni andDanaus plexippus egg glycoproteins

    Baculovirus expression vector insect cell system (BEVIS) is useful for high level production of human therapeutic proteins. However, it has been reported that recombinant glycoproteins produced from this syste...

    Yong-Il Park, Byung-Dae Yoon, Yuan Chuan Lee in Biotechnology and Bioprocess Engineering (1999)