Materials Literature
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We investigate the stability of a disk to magnetic interchange in the disk plane, when a poloidal magentic field provides some radial support of the disk. The disk is assumed to be geometrically thin and may possess rotation and shear. We assume the unperturbed magnetic field vertically threads the disk and has a comp…
Barium titanate ceramic samples, obtained by sol‐gel methods, having different grain sizes have been analyzed by diffuse phase transition techniques. We performed a study of the influence of each method on the phase transition interval and on the Landau parameters of the ferroelectric phase transition of these materia…
Through selective cultivation with 6-aminohexanoate linear dimer, a by-product of nylon-6 manufacture, as the sole source of carbon and nitrogen, Pseudomonas aeruginosa PAO, which initially has no enzyme activity to degrade this xenobiotic compound, was successfully expanded in its metabolic ability. Two new enzyme ac…
The electrochemical oxidation‐dissolution of (111) silicon has been investigated in solutions. Four electrons per silicon were observed per oxidized silicon. Current doubling (quantum efficiency of 2.2) was observed for the photo‐oxidation of n‐Si. Unlike the etching of (111) silicon in aqueous solutions, no pores wer…
The conventional split Hopkinson pressure bar system for materials testing at high strain rates produces loading pulses that have a high level of oscillation superimposed on their approximately trapezoidal shape. These oscillations, which are a consequence of the short risetime of the loading pulse produced by the imp…
A 3-D scheme based on the finite element method, which takes electric and magnetic anisotropy into consideration, has been developed for computing eddy-current losses caused by stray magnetic fields in laminated iron cores of large transformers and generators. The model is applied to some laminated iron-core samples a…
The geometric theory of aspheric wave-front recording optics is extended to include the fourth-order groove parameters that correspond to the fourth-order holographic terms in the light-path function. We derived explicit expressions of the groove parameters by analytically following an exact ray-tracing procedure for…
Neural networks can be used in principle in an unbiased way for a multitude of pattern recognition and interpolation problems within computational material science. Reliably finding the weights of large feed-forward neural networks with both accuracy and speed is crucial to their use. In this paper, the rate of conver…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTComparison between Direct Contact Angle Measurements and Thin Layer Wicking on Synthetic Monosized Cuboid Hematite ParticlesP. M. Costanzo, W. Wu, R. F. Giese Jr., and C. J. van OssCite this: Langmuir 1995, 11, 5, 1827–1830Publication Date (Print):May 1, 1995Publication Hist…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXT(.mu.-Nitrido)((tetraphenylporphyrinato)iron)((phthalocyaninato)iron) and Its Fe-Ru Analog: Redox Behavior and Characterization of New Fe(IV)-Containing Species. X-ray Crystal Structure of [(THF)(TPP)Fe-N-FePc(H2O)](I5).cntdot.2THFC. Ercolani, J. Jubb, G. Pennesi, U. Russo,…
Alcaligenes faecalis AE122 that used poly(3-hydroxybutyrate) (PHB) as a sole source of carbon was newly isolated from a coastal seawater sample. The strain required seawater for growth on PHB as well as in a nutrient broth, in which seawater could be replaced by an appropriate concentration of NaCl. PHB depolymerase w…
Describes the FAST system, developed by CSIRO for quality control and assurance of fabrics. FAST, or Fabric Assurance by Simple Testing, consists of a series of instruments and test methods which are inexpensive, robust and simple to use. It measures properties which are closely related to the ease of garment making‐u…
The light scattering spectra of water in its normal and supercooled state were analyzed in the frequency range 0.3100 ${\mathrm{cm}}^{\mathrm{\ensuremath{-}}1}$. It is shown that using the general idea of mode-coupling theory (MCT) one can describe consistently the temperature variations of both spectra and viscosity.…
A method for developing an accurate temperature-dependent dispersion model is described. It combines a room-temperature Sellmeier dispersion model with temperature-dependent refractive index measurements at a few wavelengths to predict the refractive index over a wide temperature and wavelength region. The method is a…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThermal Properties of Terephthalate- and Benzoate-Intercalated LDHM. Vucelic, G. D. Moggridge, and W. JonesCite this: J. Phys. Chem. 1995, 99, 20, 8328–8337Publication Date (Print):May 1, 1995Publication History Published online1 May 2002Published inissue 1 May 1995https://p…
The mechanical properties of fluorophlogopite mica‐based glass‐ceramics, such as fracture toughness, flexural strength, and machinability, were investigated. It has been shown that toughening increments in the glass‐ceramics occurred by crack deflection and branching by crystals with a high aspect ratio. All the glass…
Anodic oxide films grown on Si in an aqueous solution have been characterized by in situ ac impedance techniques, and their behavior compared to thermal oxides. Mott‐Schottky analysis of oxide‐free p‐ and n‐type Si leads to doping concentrations which are in excellent agreement with independent data of conductivity me…
A simple reflection technique proposed by Teng and Man [Appl. Phys. Lett. 56, 1734 (1990)] as well as independently by Schildkraut [Appl. Opt. 29, 2839 (1990)] for measuring the electro-optic coefficients of poled polymer films is applied to measure the r33 values of both z-cut lithium niobate crystal and diazo-dye-su…
A new numerical mathematical method is presented for stack of lamellar gratings. It is based on expansion of the electromagnetic field in terms of the eigenfunctions of the Helmholtz equation. These eigenfunctions are in turn expanded in terms of sets of polynomial basis functions. It is shown that, for arbitrary pola…
Abstract An isotactic polypropylene homopolymer (PP) was added with 0 to 10000 ppm of γ-quinacridone, a β-crystal nucleator of PP. Flexural test specimens were injection-molded from the PP at cylinder temperatures of 200 to 320 °C and the structures and properties have been studied. The results can be summarized as fo…