Materials Literature
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This paper investigates the influence of supply, circuit and magnetic material parameters on the occurring of fundamental-mode ferroresonance in a series inductance-capacitance-resistance (LCR) circuit with a nonlinear inductor. The analysis is developed using a modeling approach, validated by experiments, which accur…
The chlorine content of municipal solid waste (MSW) and refuse derived fuel (RDF) plays a dominant role in combustion processes. In order to prevent operational problems, such as high temperature corrosion, quality assured analytical methods for the determination of the chlorine concentration are necessary. This paper…
Abstract The adhesive properties, as measured by bulk tack and peel strength analysis, were found to decrease in polystyrene‐ block ‐polybutadiene‐ block ‐polystyrene (SBS) and polystyrene‐ block ‐polyisoprene‐ block ‐polystyrene (SIS) PSA films containing common singlet oxygen generators, acridine, rose bengal, and C…
Thirteen pure lines from VIR flax genetic collection were evaluated for their vegetative period, production, quality of textile fibre, structure and composition of the fibre. Correlation analyses showed that strength of technical fibres was positively correlated with plant height, straw production and number of bundle…
The structures and dynamics of triblock poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) copoly mers, which are structure directing agents for various mesoporous materials, have been studied extensively.1-8The structures and dynamics of this neutral block-copolymertype surfactant in both as-synthesized…
Optical and laser crystals grown by the Czochralski technique from a solute-rich melt usually suffer defects of melt inclusion or bubble core, which severely affects optical, thermal, and mechanical properties of the material. The main purpose of this paper is to study the inclusion mechanism and reduce such defects.…
Abstract An investigation of miscibility and isothermal crystallization behavior of Polyamide 6 (PA6)/Poly(vinyl alcohol) (PVA) blends was conducted. Fourier transform infrared spectra (FTIR) analysis indicated that the interactions between the carbonyl groups of PA6 and hydroxyl groups of PVA increase as the weight r…
Abstract This article introduces a patented advanced structural foam molding technology. By the implementation of a means of continuing the polymer matrix melt flow stream, the processing conditions are made consistent, and the injected gas is thus uniformly dispersed throughout the polymer matrix. Compared with its p…
Polyanthranilic acid (PANA), a self-doped processible conducting polymer, was synthesized and used for the first time for fabrication of contacts with configurations of (Al, Ti, Sn metal)/PANA/indium tin oxide-coated glass. The current-voltage (I-V) characteristics were measured by using microprobe arrangements, and t…
This paper deals with the differential evolution (DE)-based method for determining the magnetically nonlinear iron core characteristics of transformers and iron core inductors. The unknown iron core characteristic, approximated by the sum of exponential functions, is included in a dynamic model of the tested device. T…
The borohydride complex [Ni(II)2L(mu-BH4)]+ (3) where L(2-) represents a sterically demanding hexaaza-dithiophenolate ligand reacts rapidly with elemental sulfur in acetonitrile at ambient temperature to produce the cationic complexes [Ni(II)2L(mu-SH)]+ (4) and [(Ni(II)2L) 2(mu-S6)]2+ (6). Both complexes were isolated…
This paper proposes the analysis and application of the Preisach inverse, which is implemented in a very simple fashion, and allows applying them easily into electromagnetic codes formulated in terms of a vector potential. Such an algorithm has been proposed in real-time control of hysteretic systems but never in the…
We propose a comparison of two approaches to analyze the periodic arrays of left-handed metamaterials by field simulations in a single unit cell. First, a scattering matrix analysis in time domain is able to produce broadband results. The set of transfer functions between a small number of input and output ports of th…
Abstract Electrospinning is a process of producing ultrafine fibers by overcoming the surface tension of a polymer solution with electrostatic force. In this study, iron acetylacetonate was added to a polyacrylonitrile solution, and the role of polymer–salt–solvent interactions in the electrospinning of the ultrafine…
A procedure based on the finite element method (FEM) is presented to determine the strongly distorted wave-forms of the magnetizing currents having given direct current (dc) components in each phase of a three-phase power transformer. The three phase voltages forming a symmetric sinusoidal system are assumed to be kno…
Abstract To improve the cell‐adhesive character of Bombyx mori silk fibroin fiber, the regenerated B. mori silk fibroin fibers with recombinant cell‐adhesive proteins were prepared. The recombinant proteins were originally designed in our laboratory and expressed in Eschericchia coli ; one is the protein with the prim…
CdSe nanorod electrode arrays with the nanorods aligned normal to the substrate were fabricated using porous aluminum oxide (PAO) templates. Photovoltaic characteristics were determined electrochemically in an aqueous solution using polysulfide (S n 2− ) as the redox mediator. Isolating the back electrode from the ele…
We studied the spectral diffusion and exciton fine structures of single-walled carbon nanotubes (SWNTs) by using single carbon nanotube spectroscopy. Two types of single nanotube photoluminescence (PL) spectra were observed at temperatures below 50 K, which are double peaks with spectral diffusion and a single peak wi…
This work focuses on the grafting of transition metal complexes on silica surface nanoparticles. Nanoscale silica particles in aqueous sols are used as starting silicated materials. We have undertaken the synthesis of europium(III) complexes containing organosilyldipyridine ligands, (EtO)3Si(CH2)3NHCH2-bipy (1) and (E…
Abstract A new theory explaining the intensity of f-f transitions and the crystal field using an approximation of a strong configuration interaction is proposed. The theory enables the anomalous influence of excited configurations with charge transfer on some multiplets of the f shell to be taken into account. With th…