Materials Literature
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Particle fuels such as sphere-pac and vipac have been considered as promising fuel systems for fast reactors because of their inherent potential in remote operation, cost reduction, and incineration of minor actinides or low-decontaminated plutonium. The FUJI test addresses the questions of fabrication of mixed-oxide…
Carbon nanohorns and multiwalled carbon nanotubes have been synthesized by DC arcdischarge carried out at room pressure in air and Ar-enriched environment, by a specially designed experimental device. The resulting nanostructured material, characterized by electron microscopy and X-ray diffraction, shows different str…
Metal-responsive nanofiber formation was achieved using a designed β-sheet peptide with His residues at the both N- and C-termini. The designed peptide, whose sequence was HPKFKIIEFEPH, was in a random coil in a neutral buffer, and did not show any structural change. However, the peptide underwent the structural trans…
The conditions for the growth of potassium dihydrogen phosphate (KDP) and ammonium dihydrogen phosphate (ADP) crystals with concentrations of the thallium activator in the initial solution of 0.01, 0.1, and 1.0 wt % are investigated. It is shown that the character of incorporation and distribution of thallium in the K…
In the last two years, the US Naval Research Laboratory has been able to synthesize barium strontium titanate (BST)-based glass-ceramics with dielectric breakdown strength as high as 800 kV/cm and dielectric constant up to 1200. Unfortunately, the energy density of the candidate glass-ceramics was only ~1 joule/cc whe…
Abstract Unter dem Begriff der „Prozessintensivierung”︁ erfolgen momentan intensive F&E‐Bemühungen, um auf den Kenntnissen der chemischen Reaktionstechnik und der Transportvorgänge aufbauend die Effizienz chemischer Prozesse zu steigern. Die Kombination einer Membran mit einer katalysierten Reaktion in einem Membr…
We present automated methods for determining the value of Adams' B parameter corresponding to a target solvent density in grand canonical ensemble Monte Carlo simulations. The method found to work best employs a proportional-integral control equation commonly used in industrial process control applications. We show he…
FeatureMap3D is a web-based tool that maps protein features onto 3D structures. The user provides sequences annotated with any feature of interest, such as post-translational modifications, protease cleavage sites or exonic structure and FeatureMap3D will then search the Protein Data Bank (PDB) for structures of homol…
This paper reports a unique approach to the fabrication of magnetically anisotropic nanostructured FePt magnets: cyclic sheath cold rolling and subsequent magnetic annealing. High magnetic fields enhance both crystallographic texture and magnetic properties of cold-deformed FePt nanostructured magnets. Magnetic anneal…
The heteroepitaxy of Co-doped anatase TiO2 on LaAlO3(001) has been refined with the goal of determining the relationship between structural quality and magnetic ordering. By significantly reducing the deposition rate and substrate temperature, well-ordered Co:TiO2 films with high crystalline quality were obtained by o…
A practical method for calculating eddy current losses in transformer windings is reported. The method improves the classical loss presentation by introducing a loss coefficient, called eddy current factor kc. In this paper, eddy current losses in round conductors are discussed. A graphical approximation of kc as a fu…
Abstract Self‐assembly induced gelation of a few oligo( p ‐phenylenevinylene) (OPV) derivatives in aliphatic hydrocarbon solvents is described. The gelation is the result of hydrogen bond assisted π‐interaction between OPV moieties which facilitate the formation of supramolecular polymeric assemblies, eventually leadi…
Abstract This paper is intended to review some aspects of fibrillar networks by comparing polymer thermoreversible gels and organogels, the latter being obtained through the self‐assembling of small organic molecules. The morphology, the rheological properties and the gelation mechanisms are particularly examined. The…
Spectrophotometry measurements at wavelengths from 180 nm to 3000 nm, x-ray diffraction, and Raman spectroscopy were used in the characterization of polycrystalline Pb(Zr x Ti 1− x )O 3 films with various thicknesses deposited by pulsed laser deposition on MgO substrates. It was found that films were under a strong co…
The direct current (dc) conductivity (σdc) of pristine and ferric chloride doped poly(3-octylthiophene) has been measured in the temperature range of 6–300K. Mott’s three-dimensional variable range hopping and thermally activated tunneling are suggested as the dominant mechanisms of dc conduction at high (77–300K) and…
Abstract Polyamide 6/12 copolymers were prepared by employing two different initiation systems containing activator N‐benzoyl‐ε‐caprolactam (BzCL) and initiator either sodium salt of ε‐caprolactam (CLNa) or ε‐caprolactam magnesium bromide (CLMgBr). Materials prepared by initiation with CLNa show one melting endotherm…
Metal phthalocyanines (MPc) (M = Cu, Ni, Co and Fe) have been synthesized and characterized by XRD, IR, ESR and thermal technique. The solid state studies such as magnetic susceptibility, electrical resistivity and electron spin resonance have been carried out. Solar induced degradation of a textile dye Naphthol Blue…
The inverse flexoelectric phenomenon describes the generation of a mechanical deformation in an insulating solid by an applied gradient of the electric field. Lead magnesium niobate-lead titanate (PMNT) ceramic permits study of the inverse flexoelectric behavior because of its large flexoelectric coefficient. Special…
Depolymerization of chitin and chitosan in the course of deacetylation in an alkaline medium was studied, and the influence exerted on the process by the nature and concentration of the alkali (NaOH, KOH) and salts (NaCl, NaI, KI) was examined.
The influence of the Co addition and synthesis route on desorption properties of MgH2 were investigated. Ball milling of MgH2-Co blends was performed under Ar using different milling intensities and different weight ratios. Microstructural and morphological characterization, performed by XRD and SEM, show a huge corre…