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Silicon/epoxy nanocomposites were synthesized in order to investigate potential improvement of electrical energy storage capability and mechanical properties of epoxy resin on addition of Si nanospheres. Nanospheres with mean diameter 130 nm were homogenized within epoxy monomers at 5 and 10 wt.%. The dielectric behavior of the resulting nanocomposites was investigated using broadband dielectric spectroscopy...
Novel composites performing both dielectric and mechanical functions have a potential application in vehicle structures of both energy storage and load bearing capacity, leading to reduction in weight and associated energy costs. Multifunctional silicon nanoparticles/bisphenol E cyanate ester (Si/BECy) nanocomposites were synthesized and their dielectric properties were investigated. Si nanospheres,...
A polymer-ceramic nanocomposite is studied as a candidate for structural dielectric devices in aerospace applications. A pre-imidized polyimide powder was chosen for its excellent mechanical properties at elevated temperatures, while barium titanate (BaTiO3) nanoparticles with a nominal diameter of 60 nm were dispersed in the matrix for the intended purpose of increasing the permittivity of the composite...
Fruit dehiscence for seed dispersal exists broadly in flowering plants including many important crops such as oilseed rape and soybean, which can cause yield reduction and succeeding crops contamination in crop production. Previous studies on model plant Arabidopsis have identified several transcriptional regulators required for fruit dehiscence. These transcriptional factors belong to bHLH or MADS-box...
Long chain acyl-coenzyme A synthetases (LACSs) activate free fatty acid to acyl-CoA thioesters, and play important roles in the biosynthesis and degradation of lipids. In this study, a Brassica napus LACS gene has been found through in silicon cloning. The gene is 2,270 bp with 2,004 bp of open reading frame (ORF), encoding a LACS with 667 amino acid residues designated BnLACS4. Sequence analysis...
Ferroelectric ceramics with formula Pb0.8Ba0.2[(In1/2Nb1/2)1-xTix]O3 (PBINT) (x=0.0, 0.05, 0.1, 0.2, 0.3, 0.4 and 0.5) were prepared via the wolframite method. The perovskite phase formation and grain morphology microstructure were examined by X-ray diffraction and scanning electron microscopy. It was found that ceramics with compositions in the range of x=0.0~0.3 showed a pseudo-cubic structure,...
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