Materials Literature
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The wollastonite/PP composites were manufactured by twin-screw extruder and the effects of compatabilizer, feeding method and screw configuration on the properties of wollastonite/PP composites were investigated in this paper. The dispersion of fibrous wollastonite in PP matrix was determined by scanning electron micr…
Selective Growth of Silicon Nanowires on Glass Substrate with an Ultrathin a-Si:H Layer, Hsueh, H. T., Hsueh, T. J., Chang, S. J., Hung, F. Y., Hsu, C. L., Weng, W. Y., Liu, C. W., Lee, Y. H., Dai, B. T.
Construction of a 3-D supramolecular network from [Ln(cpb)(3)(H(2)O)(2)] (Ln = Nd, Tb; Hcpb = 1-(4-cyanophenyl)-1,3-butanedione) by sequential displacement of a coordinated water by DMF, dimerisation by reciprocal hydrogen bonding in solution and pi-pi stacking and interdigitation of nitriles has been monitored by in…
In this paper, the problem about optimal iterative learning control of general nonlinear discrete-time systems has been studied. Based on contraction mapping principle, if some mild assumptions are given, we can obtain some sufficient conditions for the existence of optimal iterative learning control of general nonlin…
Local conductance of a ZnO epifilm with a columnar-grain structure was studied by conductive-mode atomic force microscopy. The probe-ZnO junction at the grain boundary with high density edge threading dislocations (TDs) behaves as a Schottky contact while the junction at the epitaxial core behaves as an ohmic contact,…
A magneto-electric (ME) effect was observed in a charge-ordered ferroelectric LuFe 2 O 4 . The dielectric response in a three-dimensional charge-ordered phase is strongly influenced by magnetic field, especially around the ferri-magnetic ordering temperature. We also show the relation between the oxygen stoichiometry…
μ-(dihydroxo)dipalladium(II) complex with N21, N22-etheno bridged tetraphenylporphyrin ligand was employed in the catalytic photooxidation of phenol derivative in aerated homogeneous solution with visible light irradiation. The Pd complex promoted the degradation of p-tert-butylphenol as well as Cu phthalocyanine unde…
Efficient green and red upconversion emission in Y2O3:Yb3+, Er3+ nanorods under 978 nm radiation excitation is achieved. Experimental effective lifetimes, luminescent emissions, and nanorod sizes depend strongly on the solvent ratios used during the synthesis. A microscopic nonradiative energy transfer model is used t…
Optical absorption, emission and luminescence kinetics of Nd 3+ centres in the new borate crystal with Sr4B14O25:Nd (Nd content 0.2 wt.%) composition are investigated and analysed.The oscillator strengths (P theor and P exp ) for observed absorption transitions and phenomenological intensity parameters Ω t (Ω 2 = 1.59…
The ultrasonic properties in the hexagonal structured lanthanide metals Ti, Zr and Hf have been studied at room temperature. The higher order elastic constants have been calculated for these metals using Lennard-Jones Potential for evaluating orientation-dependent ultrasonic properties. An anomalous behaviour in orien…
Polyacrylonitrile (PAN) solutions were deposited on quartz plates by spin coating to yield 2-3 ?m thick PAN films. The films were decomposed at 1000?C in N2 atmosphere into electrically conducting carbonaceous coatings. When the precursor solution contained cobalt (0.2 g Co-acetate per 1 g PAN) and/or multi-wall carbo…
The objective of this research was to determine allele and genotype frequencies of the prion protein gene (PRNP) in a flock of sheep and categorise thereof into groups by susceptibility to scrapie. Additionally, a mating simulation was conducted, which aimed at decreasing sheep susceptibility to scrapie. Sheep of Kami…
Two distinct methods of propagation for basic nuclear data uncertainties to large scale systems will be presented and compared. The “Total Monte Carlo” method is using a statistical ensemble of nuclear data libraries randomly generated by means of a Monte Carlo approach with the TALYS system. These libraries are then…
The ohmic resistance of anode-supported solid oxide fuel cells (SOFCs) having a manganese-based cathode was lowered when operated in synthetic coal gas containing hydrogen chloride. This effect was not observed for cells with cathodes that did not contain manganese. Substantial amounts of Mn were found throughout the…
Carbon nanotubes (CNTs) are known as one of the ideal electron emitter material. However, there are many challenges to solve for actual use such as emission current enhancement, emission current stability, life time extension, etc. In this work, methane and ethane gases are used to improve emission characteristics fro…
The molecular basis of life rests on the activity of large biomolecules, mostly nucleic acids(DNA and RNA), carbohydrates, lipids, and proteins. While each of these molecules has itsrole, there is something special about proteins, as they are the lead performers of cellular functions.This was dramatized by Jacques Mon…
Nanocrystalline (NC) samples of ageing and nonageing Ti 49.4 Ni 50.6 and Ti 50.2 Ni 49.8 alloys have been produced using high pressure torsion (HPT) by the technique that allows obtaining disc-shaped samples of 20 mm in diameter and 0.7 mm thick. It was revealed that in these Ti-Ni alloys a structure of a mix of amorp…
Dense ͑Ba 1-x La x ͒ 2 In 2 O 5+x ͑BLIO͒ electrolytes with different compositions ͑x = 0.4, 0.5, 0.6͒ were fabricated using powders obtained by the Pechini method.The formation of BLIO powders was investigated by using X-ray diffraction and scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy…
摘要 基于配位场理论，建立d3组态离子在三角晶场中的完全能量矩阵，采用完全能量矩阵的对角化计算方法，研究了绿宝石晶体Cr3+：Be3Al2(SiO3)6的光谱和EPR谱，理论值与实验值符合得很好.通过分析绿宝石晶体中(CrO6)9-团簇的光谱和EPR谱，研究了配体在络合物中的极化现象.结果表明由于周围配位环境的影响，绿宝石晶体中(CrO< 关键词: Cr3+：Be3Al2(SiO3)6体系 / 光谱 / EPR谱 / 局域结构极化 Abstract By diagonalizing the complete energy matrix for d3 configuration ion in a trigonal ligand-fi…
ABSTRACT：Cellulose nanowhiskers (CNW) gamered increasing interest for their remarkable reinforcement of polymer composites. In this work, we were to produce cellulose whiskers from commercially available microcrystalline cellulose (MCC) by acid hydrolysis with sulfuric and hydrochloric acids. Electron microscopy found…