Materials Literature
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In this paper we tackle the problem of coordinating multiple decentralised agents with continuous state variables. Specifically we propose a hybrid approach, which combines the max-sum algorithm with continuous non-linear optimisation methods. We show that, for problems with acyclic factor graph representations, for s…
The carrier dynamics of donor-bound and free excitons, localized in the alloy disorder potential, were investigated for MgxZn1−xO (0.08≤x≤0.33) thin films. The measured transients show a fast decrease in the luminescence intensity within the first nanoseconds, followed by a slow, strongly nonexponential decay. Shortly…
Calf thymus DNA adsorbed on a rough gold substrate or on an atomically smooth gold (111) surface has been investigated by collecting its unique Raman fingerprints using either surface-enhanced Raman scattering (SERS) or tip-enhanced Raman scattering (TERS). A monolayer coverage of DNA strands adsorbed at both the irre…
The jute fiber is one of the strongest lignocellulosic fibers with applications ranging from simple items such as fabrics and ropes to engineering composites for automobile parts and building panels. Like other lignocellulosic fibers, the jute may have an inverse strength dependence with its diameter. In principle, th…
Aim: The aim of this study was to evaluate the transverse strength of three kinds of heat-cured acrylic resin (Meliodent HC, Acron HC, Lucitone 199); one kind of microwave-cured acrylic resin (Acron MC); one kind of visible light-cured resin (Triad VLC); and one kind of self-cured acrylic resin (Meliodent SC). Method:…
The study investigated the effects of admixtures on the properties of corn cob ash (CCA) cement concrete. The workability and compressive strength of CCA cement concrete incorporated with accelerator, plasticizer and water reducing and retarding were carried out. The dosage of admixture incorporated was: 0.124litre pe…
The anodic performance of doped with Mn and Fe was studied by using a Co-doped -based oxide (LSGMC) electrolyte. The open-circuit potential approximate to the theoretical value (1.1 V) was exhibited on the cell using oxide for the anode. A high maximum power density ( at 1273 K) was attained by co-doping Mn and Fe int…
ceramics were prepared by a solid-state reaction process at 1973 K for 10 h in air. ceramics have a single phase of the pyrochlore-type structure, whereas exhibit a defective fluorite-type structure. The full width at half-maxima in the Raman spectra increase with increasing Y content, which indicates that the degree…
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The inhibition of the corrosion of mild steel in hydrochloric acid solution by the seed extract of Kuchla ( Strychnos Nuxvomica ) has been studied using weight loss, electrochemical impedance spectroscopy, potentiodynamic polarization and linear polarization techniques. Inhibition was found to increase with increasing…
ZnO nanowires were successfully prepared on a silica glass substrate using the sol–gel method. The ZnO nanowires grew from ZnO grains or ZnO grain boundaries, and the length increased with an increment in crystallized temperature. Diffused zinc ions combined with injected oxygen and gradually formed the ZnO nanowires.…
A "multisegment amphiphile" has been synthesized by covalently connecting two well known building blocks, a gelator and a micelle forming surfactant. Self-assembly results in the formation of compartmentalized nano-object displaying properties inherited from both parents.
A multi rate kinetic model to explain the spontaneous oriented attachment of CdS nanorods in the presence of an amine is presented. The model demonstrates the reasons that elongation is restricted to a maximum of quadruple, the starting rod length for rods of a certain aspect ratio (8 × 30 nm) with no elongation occur…
The reaction of Pr(NO(3))(3).6H(2)O with the ligand 2-hydroxy-N-(2'-hydroxyethyl)-3-methoxybenzamide (H(3)L) in MeOH-MeCN generates the nonanuclear compound [Pr(9)(H(2)L)(8)(OH)(10)(NO(3))(8)](NO(3))(H(2)O)(2)(CH(3)CN) (), whose single-crystal X-ray structure reveals the presence of metallacalix[4]arene cavities that…
We investigated a new type of polymer brushes: the zipper brush. By adsorbing a diblock-copolymer with one charged block and one neutral block to an oppositely charged polyelectrolyte brush, a neutral polymer brush is formed on top of an almost neutral complex layer of polyelectrolytes. This neutral brush can be adsor…
Resonant modes of multi-layer structures which contain the regions of negative epsilon material (such as a metal in the visible range) are analyzed.Existence of two separate classes of resonant modes is demonstrated.One is related to the excitation of the surface mode at the interface of the regions with opposite sign…
The equilibrium molecular structure of octaphenyloctasilsesquioxane Si(8)O(12)Ph(8) in the gas phase has been determined by electron diffraction. It was found to have D(4) point-group symmetry, with Si-O bond lengths of 1.634(15)-1.645(19) A, and a narrow range [147.5(45)-149.8(24) degrees] of Si-O-Si angles. The stru…
Homogeneous, smooth and densely-packed nanoparticulate ZnO films for field-effect transistors (FETs) are formed by spin-coating suspensions of ZnO nanoparticles in an organic solvent, followed by baking at 150 °C. The morphology of the films is strongly dependent on the type and amount of surfactant polymers that are…
Polymerization of pyrrole on a Vulcan XC-72 carbon black coated glassy carbon electrode was performed using potentiodynamic and galvanostatic regimes in an aqueous solution of 0.5 M pyrrole and 0.5 M NaClO(4). Responses of the electrodes prepared under different conditions were recorded using cyclic voltammetry and el…
A new actinometric procedure based on the analysis of kinetic traces of the actinometer is proposed in this study. It is suitable for thermally-stable photochromes, such as diaryethenes, which may be useful candidates for visible-range actinometry. The treatment of the traces employs a rate law which was achieved via…