Journal of the Society of Materials Engineering for Resources of Japan
Online ISSN : 1884-6610
Print ISSN : 0919-9853
ISSN-L : 0919-9853
Volume 23, Issue 2
Displaying 1-4 of 4 articles from this issue
Original Papers
  • Takaaki WAJIMA, Tomoe SHIMIZU, Takehiko YAMATO, Yasuyuki IKEGAMI
    2011 Volume 23 Issue 2 Pages 33-37
    Published: 2011
    Released on J-STAGE: August 01, 2012
    JOURNAL FREE ACCESS
    We examined the desalination treatment of seawater using AgNO3 and Pb(NO3)2 for the removal of anions, such as Cl-, Br-, and SO42-. AgNO3 could remove Br- and Cl- from seawater, while Pb(NO3)2 could remove SO42-, Br- and Cl-. The pH of solution treated with AgNO3 was constant at pH 8.1, but the pH of the solution treated with Pb (NO3)2 decreased to acidic. The reactions of AgNO3 and Pb(NO3)2 with anions in seawater were rapid. Regardless of temperature of seawater, the time for anion removal by AgNO3 was almost same, while that by Pb(NO3)2 delayed with decreasing temperature of seawater.
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  • Takashi HIROSE, Masanori KUSHIBIKI, Katsuji SHIBATA
    2011 Volume 23 Issue 2 Pages 38-42
    Published: 2011
    Released on J-STAGE: August 01, 2012
    JOURNAL FREE ACCESS
    This study clearly introduces the basic characteristics of milled fiber made from waste FRP-derived glass fibers through depolymerization of unsaturated polyester under ambient pressures.It was found that the waste FRP-derived glass fibers were 25 mm in length with a cotton-like texture. The ratio of aim range (100-300 μm) of the milled fiber was provided by two phases of the processes that changed the distance of the grinder was higher than that of the existing article.Milled fiber made from waste FRP-derived glass fiber maintained resin and calcium carbonate, however the fiber of the existing article did not have resin and calcium carbonate. It was found that the degree of crystalline of the composite material made from waste FRP-derived glass fiber and post-consumer PET (polyethylene telephthalate) bottle was at the same level as the material existing article and post-consumer PET bottle and only PET bottle. Moreover, the sample which compounded showed strength of 1.5 times of the no composition and the tensile strength of the plastic which compounded with the milled fiber from waste FRP-derived glass fibers was higher than that of the existing article.
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  • Takashi HASEGAWA, Hiroki KAWATO, Haruki YAMANE, Shunji ISHIO
    2011 Volume 23 Issue 2 Pages 43-47
    Published: 2011
    Released on J-STAGE: August 01, 2012
    JOURNAL FREE ACCESS
    Crystalline structure and magnetic properties of FePt1-xRhx films (6.12 nm thick)were studied, and a bit patterning process using magnetic phase transitions was investigated. [001]-Oriented L10(CuAu I type)ordered films with a face-centered tetragonal structure (fct; a=b>c)were prepared in the range of 0≤x≤0.40 after annealing at 973 K. A degree of long-range chemical order parameter was calculated to be S∼0.98 in all of the films. At room temperature, the films with 0≤x≤0.32 were in a ferromagnetic (FM)phase with a coercivity of several kilo-oersteds, and the films with 0.34≤x≤0.40 were in an antiferromagnetic (AF)phase. The uniaxial magnetocrystalline anisotropy energy of the films with FM phase was more than 107 erg/cm3. Using this material system, a new bit patterning process was proposed. Atomic diffusion was used for modifying the composition of the film. Only the magnetic phase of the area whose composition crossed the threshold of the FM-AF transition changed abruptly to the FM phase. A minimum dot size of 300 nm×300 nm was realized by this method. A multi-domain structure was observed by the magnetic force microscopy at room temperature, and the FM dots were saturated by a magnetic field of 5.5 kOe. These results suggest realizing the advantaged bit patterning process.
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  • Takanobu TAGUCHI, Hitoshi TAKAHASHI, Seiei WATANABE, Tsuyoshi OHNO, To ...
    2011 Volume 23 Issue 2 Pages 48-52
    Published: 2011
    Released on J-STAGE: August 01, 2012
    JOURNAL FREE ACCESS
    We studied the effect of fermented sake (moromi)solutions and sake cake extracts on the growth of cancer cells. The long fermented moromi solutions inhibited the growth of cancer cells. On SDS/PAGE (sodium dodecyl sulfate/polyacrylamide gel electrophoresis), we found that decreasing of 52-kDa and 28-kDa protein bands in long fermented solutions. The 28-kDa protein may play an important role in the inhibition of cancer cell growth by fermented sake solutions.
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