Materials Literature
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The energies of silver (Ag) atoms in Ag nanoparticles supported on different cerium and magnesium oxide surfaces, determined from previous calorimetric measurements of metal adsorption energies, were analyzed with respect to particle size. Their stability was found to increase with particle size below 5000 atoms per p…
Surface resistance to nonspecific protein adsorption, cell/bacterial adhesion, and biofilm formation is critical for the development and performance of biomedical and analytical devices. Significant needs and efforts have been made in the development of biocompatible and bioactive materials for antifouling surfaces, b…
The magnetization curves of Ca(1-x)(Ln)(x)MnO(3) single crystals, where Ln denotes La or Ce, x ≤ 0.12, have been measured in pulsed magnetic fields up to 350 kOe. The metamagnetic transitions for compositions with x = 0.10 and 0.12 have been observed in the temperature range 77-240 K. The hysteresis around the transit…
Abstract The aqueous precipitation copolymerization of acrylonitrile (AN) and vinyl acetate (VAc) with NaClO 3 /NaHSO 3 redox initiation system is carried out continuously in a 10L pilot‐plant reactor. The effects of pH value on ionization equilibrium of NaHSO 3 , polymerization rate, particle morphology, particle siz…
We have calculated the fifth-order nonlinear optical response at experimentally relevant field strengths within the model of massless Dirac fermions by coupling the massless Dirac fermions to the time-dependent electric field quantum mechanically. It demonstrates that the fifth-order nonlinear optical response plays a…
A new series of thermotropic phosphorus-based liquid crystalline (LC) dendrimers based on a thiophosphoryl-phenoxymethyl(methylhydrazono) core (thiophosphoryl-PMMH) up to the fifth generation has been synthesised by solution condensation of aldehyde groups, surface-functionalised thiophosphoryl-PMMH dendritic substrat…
Transparent, rare-earth doped fluorozirconate-based glasses and glass ceramics are attractive systems as up- and downconverters to increase solar cell efficiency. For down-conversion applications, the efficiency of a silicon solar cell could be significantly increased in the ultraviolet spectral range by placing a eur…
Poly (l‐lactic acid) (PLLA) is one of the most promising biodegradable polymers that is being increasingly used for various biomedical applications. However, the literature recognises that for monofilament suture purposes, PLLA is too stiff and inflexible due to its greater glass transition temperature and crystallini…
Immer die richtige Antwort: An Polyethylenglycol-Polystyrol-Kügelchen konjugierte Oligodesoxyfluoroside (ODFs) wurden als Fluoreszenzsensoren für organische Dämpfe genutzt (siehe Bild). Die ODFs – DNA-artige Oligomere, in denen Fluorophor-, Spacer- und Quencher-Einheiten die DNA-Basen ersetzen – waren ausreichend elek…
Double helical (DH and DH*) domains, defects of the smectic A (SmA) phase, have for the first time been studied in the smectic A* (SmA*) phase, composed of chiral molecules. Both left- and right-handed DH*s are found in SmA*s, but not in equal numbers. The majority of the DH*s in the two left-handed cholesterics studi…
In this paper, an improved dynamic model has been developed for predicting the oscillation motion of the convergence point. Compared to previous research research, this model presents a more practical expression of sirospun yarn forming based on improved dynamic analysis. The experimental validation shows that oscilla…
Fabrication of graphene nanoribbons of desired edge and width is a critical challenge for its practical applications. Our first-principles calculations and molecular dynamics simulations show that oxygen atoms are favorable to adsorb on the high curvature sidewalls of radially deformed armchair single-walled carbon na…
In this paper, we demonstrated a new convenient route for in situ fabrication of well separated small sized WO(3) nanoparticles in silica spheres, through a predeposition of surfactant encapsulated polyoxotungates as tungsten source, and followed by a calcination process. In a typical procedure, selected polyoxotungat…
Numerous examples of closed-cage nanostructures, such as nested fullerene-like nanoparticles and nanotubes, formed by the folding of materials with layered structure are known. These compounds include WS2, NiCl2, CdCl2, Cs2O, and recently V2O5. Layered materials, whose chemical bonds are highly ionic in character, pos…
Organically modified silica coatings were prepared on metal nanowires using a variety of silicon alkoxides with different functional groups (i.e., carboxyl groups, polyethylene oxide, cyano, dihydroimidazole, and hexyl linkers). Organically modified silicas were deposited onto the surface of 6-μm-long, ∼300-nm-wide, c…
Fully phosphor-converted LEDs (FpcLeds) with saturated emission have been realized in the green and amber spectral region. With the Lumiramic™ phosphor technology it is possible to achieve high package efficiency with minimum transmission of blue light from the primary LED source. This is done by keeping the scat…
In almost all the studies cited above, a large number of roughness and waviness parameters were obtained that did not take into account the scales-morphologic periodicity of each www.intechopen.com Woven Fabric Engineering 72 surface studied and its influence on the whole topography. All textile materials having perio…
Abstract In contrast to the bulk of published nanocomposite studies, in this study we investigated the mechanical properties of alumina/epoxy nanocomposites manufactured with nanofillers having a fiber or whisker morphology. The article describes how ultrasonic dispersion and in situ polymerization were used to incorp…
We have experimentally studied the interparticle force between two particles accompanied by hyperbolic hedgehog defects in a nematic liquid crystal. The force F was measured with dual-beam optical tweezers at various temperatures and in cells with various thicknesses. In a thick cell, the dependence of F on the interp…
Due to the light scattering processes that take place within the color conversion elements (CCE) of phosphor converted light-emitting diodes (LEDs) and the rather different emission characteristics of the blue LED and the converted light, which have to be matched by the scattering processes, a better understanding of…