Materials Literature
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The significance of on-site insulation diagnosis has been increasing year by year to deal with tremendous amount of aged high voltage power apparatus in utility companies. On-site diagnostic methods based on partial discharge (PD) measurement using resonant high-voltage supply are promising technique because resonant…
The method of crucible rotating oscillation damping was employed to measure the kinematic viscosity of magnesium melt and the curve of viscosity v versus temperature T from 935 K to 1190 K was obtained. It is exponential increase (decrease) law of viscosity with the temperature during heating and cooling process; Besi…
Porous silicon (PS) suitable for optical detection of immunoreaction is fabricated.The structure of immunosensor is prepared by the following steps: oxidization, silanization, glutaraldehyde cross-linker, and covalent binding of antibody.When antigen is added into the immunosensor, the Raman intensity is estimated to…
The indentation load-size effect (ISE) in Vickers hardness of Al2O3 and Al2O3 + SiC nanocomposites has been investigated using Meyer's law, the proportional specimen resistance (PSR) model and the modified proportional specimen resistance (MPSR) model. The strongest ISE was found for alumina. It is suggested that the…
Most municipal solid wastes and compostable plastics are disposed of in an anaerobic system in landfills, where compostable materials do not decompose. This high volume of municipal waste produced from cradle-to-grave processes can partially change into cradle-to-cradle processes through compositing. The objective of…
Using the generalized Ginzburg-Landau-Devonshire theory, the characteristics of phase transformation of a ferroelectric thin film with surface layers are investigated. We study the effect of the surface layer on the properties (coercive field, critical thickness) of a ferroelectric thin film. Our theoretical results s…
The properties of polyvinyl alcohol/gelatin (PVA/GE) nanofibers have been previously investigated as a function of the processing parameters such as the ra-tios of PVA and GE, electrical field and tip-to-collector distance during the electro-spinning process, in this study, the properties of the electro-spinning PVA/G…
The results of X-ray diffraction (XRD), scanning electron microscopy (SEM) and dielectric measurements performed for samples of the polycrystalline solid solutions of (Ba1-xSrx)TiO3, are presented. An increase of diffuseness of ferroelectric phase transition and a decrease of the temperature Tm (the temperature of the…
The lowest‐lying negative‐parity state of the Lambda is investigated in (2+1)‐flavour full‐QCD on the PACS‐CS configurations made available through the ILDG. We show that a variational analysis using multiple source and sink smearings can extract a state lying lower than that obtained by using a standard fixed smeared…
Glass forming materials are characterized by a complex relaxation pattern, which evolves over several time decades. Dielectric spectroscopy has proven particularly useful for studying such scenario as it is able to monitor the dielectric dynamics of a system over a range up to 16 time decades. In this work we study ef…
Unique ring-shaped single-crystal like mesoporous ZnO:Mn2+ nanostructures have been fabricated through ultrasound assisted hydrolysis of zinc and manganese precursors. Incorporation of manganese into the nanostructures induced soft ferromagnetic behaviour. The nanostructures are of high optoelectronic quality with lit…
We have been involved in all aspects of nanofabrication for many years. This includes zone plates, calibration test objects, gratings, Young’s slits, and nanohole arrays, both ordered and random. Most of our nanostructures are fabricated in tungsten, a material very well suited for a very wide range of x‐ray energies,…
Compressor Blade Fatigue Diagnostics and Modelling with the Use of Modal AnalysisThis paper investigates the diagnostic and research aspects of the compressor blade fatigue. The authors have reviewed the characteristics of different modes of metal blade fatigue (LCF, HCF, VHCF). The polycrystalline defects and impurit…
Monte Carlo protocols to simulate the string relaxation modes are proposed according to the Hamiltonian of the molecule-string model for glass transition. The simulated relaxation times of the 1st and 2nd modes are consistent with the predictions of the string relaxation equation of the model,thus matually verifying e…
During mechanical tunnel driving in fine-grained soil or soft rock the excavated material often sticks to the cutting tools or conveying system which may cause great difficulties in the construction process: High energy demand, blocking or breakdown of excavation tools, clogging of screw or band conveyors, problems in…
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The influence of crystal orientation on the magnetic properties of 3% Si-Fe single crystals was investigated by measuring iron losses and observing magnetic domain patterns in TiN-coated and chemically polished specimens. The iron loss was reduced in a TiN-coated sample whose β angle was less than 4 degrees and increa…
Deformation of magnesium alloy AZ61-F with 1 wt.% of Al2O3 was analysed by "in-situ tensile test in SEM" and a model of fracture mechanism was suggested. Microstructure of the experimental materials is heterogeneous with grain size of 50 m. It has been shown that during tensile deformation the failure of Mg17Al12 part…
The microstructure and crystallographic texture of copper electrodeposited onto a graphite substrate were examined by scanning electron microscopy, and electron backscatter diffraction. A high twin fraction of 80% was achieved using a pulsed electrodeposition technique under the current density of 0.5 A/cm 2 . A new t…
A study of the water-soluble cationic Co porphyrin, Co II TMpyP(4), complexed with calf thymus DNA and synthetic double-stranded and single-stranded adenine and thymine containing polynucleotides, was carried out by resonance Raman (RR) and transient absorption spectroscopies. Under high intensity nanosecond pulsed ex…