Materials Literature
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In fluidized bed combustors, the harmful pollutants NO and N 2 O are formed from fuel-nitrogen (fuel-N). The complex homogeneous and heterogeneous reaction mechanisms determine the tradeoff between N 2, NO, and N 2 O from fuel-N conversion affected by the bed temperature, fuel characteristics, residence time, and many…
Arrhenius parameters, obtained with the blackbody infrared radiative dissociation technique, are reported for the dissociation of a series of gaseous protonated complexes composed of mutants of a single chain variable fragment (scFv) of the monoclonal antibody Se155-4 and three trisaccharide ligands. Hydrogen bonding…
The analysis of experimental relaxometric profiles of paramagnetic complexes is usually performed using the Solomon−Bloembergen−Morgan (SBM) theory. The SBM theory is not valid for slowly rotating systems when the electronic levels are split at zero field, in which case a modified theory developed in Florence should b…
Equal-channel angular pressing (ECAP) was used to refine the grain sizes of pure Al and an Al-3 wt% Mg alloy containing minor additions of either Sc or Zr. Following ECAP, the grain sizes were in the ultrafine submicrometre range. Diffusion couples were prepared from the fine-grained material produced by ECAP and from…
A computationally efficient method is presented - 'fast rotational matching' or FRM - that significantly accelerates the search of the three rotational degrees of freedom (DOF) in biomolecular matching problems. This method uses a suitable parametrization of the three-dimensional rotation group along with spherical ha…
Femtosecond transient absorption spectroscopy has been used together with time-integrated photoluminescence (PL) measurements to study charge carrier relaxation in colloidal InP quantum dots (QDs). Measurements of band-edge photoinduced bleaching as well as PL intensity measurements indicate that the fraction of charg…
Upconverting phosphor fine particles (Y 2 O 3:Yb,Er) have been prepared, using an emulsion liquid membrane (ELM, water-in-oil-in-water (W/O/W) emulsion) system, consisting of Span 83 (sorbitan sesquioleate) as the surfactant and VA-10 (2-methyl-2-ethylheptanoic acid), DTMBPA (bis(1,1,3,3-tetramethylbutyl)phosphinic ac…
Floating multilayers of polyallylamine/polystyrenesulfonate (PAH/PSS) adsorbed to a dimethyldioctadecylammonium bromide (DODAB) monolayer at the air/water interface (at pH 5.5) are analyzed quantitatively with respect to the internal charge stoichiometry of the polyelectrolytes. To this end the adsorbed amount of poly…
Three-dimensional network structures of [Ru(II/III)(2)(O(2)CMe)(4)](3)[M(III)(CN)(6)] (M = Cr, Fe, Co) composition have been formed and their magnetic properties characterized. [Ru(II/III)(2)(O(2)CMe)(4)](3)[M(III)(CN)(6)] (M = Cr, Fe, Co) have nu(CN) IR absorptions at 2138, 2116, and 2125 cm(-1) and have body-centere…
We measure the electron conductivity of the surface states and the subsurface space charge layer originating from the Si(111)-4x1-In reconstruction as a function of temperature. The conductivity of the surface states drops sharply around 130 K with decreasing temperature, revealing a metal-insulator phase transition o…
Molecular orientation and strain-induced crystallization of vulcanized natural rubber during uniaxial deformation were studied via in situ synchrotron wide-angle X-ray diffraction (WAXD). The high intensity of synchrotron X-rays and new image analysis methods made it possible to estimate mass fractions of the strain-i…
Abstract Soluble and inherent photoimageable polyimides with improved photopatterning features were prepared from α,α‐(4‐amino‐3,5‐dimethylphenyl)phenylmethane and 3,3′,4,4′‐benzophenonetetracarboxylic dianhydride. The polyimides possessed good combined chemical and physical properties: thermal stability was observed,…
Manganites with general formulas $R{\mathrm{MnO}}_{3}$ and ${R}_{0.5}{A}_{0.5}{\mathrm{MnO}}_{3},$ where ${R}^{3+}$ is a rare-earth ion, and ${A}^{2+}$ is an alkaline-earth ion, are known as insulating pure or charge ordered compounds at low temperatures with some R and A. In the present work, it is shown how the char…
Mesostructured vanadium-oxo-based hybrid thin films have been prepared by evaporation-induced self-assembly. Anhydrous metal chlorides (VOCl 3 or VCl 4 ) were used as the vanadium source, and the nonionic surfactant Brij 56 or 58 was used as the structure-directing agent in ethanol/water solutions. Mesostructured film…
Collagen model peptides that contain 2,2'-bipyridyl (bpy) ligands were designed and synthesized. The thermal stability of the collagenous triple helix was increased by forming an Fe(II)(bpy-peptide)(3) complex. The chirality of the metal center was shifted to form right-handed Delta-isomers induced by the supercoiling…
In this paper, computer simulation results of phase separation dynamics of ternary mixture (A, B, and C) coupled with an interfacial chemical reaction A + B C in two-dimension are presented. The effect of reduction of interfacial free energy due to the presence of species C along the interface is taken into considerat…
Abstract The crosslinking of poly(ethylene oxide) (PEO) with a difunctional peroxide such as 2,5‐bis( tert ‐butylperoxy)‐2,5‐dimethylhexane (Luperox 101) may proceed through at least two different pathways. Thus, the thermally formed alkoxy radicals abstract hydrogen from PEO, and the resulting PEO radicals may combin…
The impact of a primary electron initiates a cascade of secondary electrons in solids, and these cascades play a significant role in the dynamics of ionization. Here we describe model calculations to follow the spatiotemporal evolution of secondary electron cascades in diamond. The band structure of the insulator has…
We present ab initio calculation results of spin-polarized electronic structure in disordered bcc ${\mathrm{Fe}}_{1\ensuremath{-}x}{\mathrm{Si}}_{x}$ alloys, starting from dilute solid solutions of Si in iron up to the composition corresponding to the intermetallic compound ${\mathrm{Fe}}_{3}\mathrm{Si} (x=0.01--0.25)…
Several doped type-I silicon clathrates $({\mathrm{Na}}_{8}@{\mathrm{Si}}_{46},$ ${\mathrm{K}}_{8}@{\mathrm{Si}}_{46},$ ${\mathrm{Ba}}_{8}@{\mathrm{Si}}_{46}$ and ${\mathrm{I}}_{8}@{\mathrm{Si}}_{46})$ have been investigated both experimentally by inelastic neutron scattering and x-ray-absorption spectroscopy and theo…