Materials Literature
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Abstract We examined the fine structure of gametes and the auxospore wall in the heterothallic pennate raphid diatom Nitzschia longissima (sensu Karsten 1897). The presence of scales in the gamete wall of both sexes is demonstrated for the first time for a pennate diatom species. Silica in scales was documented by ene…
Optical absorption and optically stimulated luminescence measurements have been made on RbCdF3:Mn2+. We show that there is an ultraviolet (UV) response that covers the UV spectrum and hence this compound is applicable for passive UV detection and dosimetry. There is a fast UV-A and UV-B stimulated luminescence decay w…
Abstract Three azido‐bridged Mn II complexes of formulas [Mn 2 (N 3 ) 4 (ttp) 2 ] ( 1 ), [Mn 2 (N 3 ) 4 (ttp‐N 3 ) 2 ] ( 2 ) and [Mn 2 (N 3 ) 4 (ttp‐N 3 ) 2 ] 3 [Mn III (ttp‐N 3 )(N 3 ) 3 ] 2 ( 3 ), where ttp and ttp‐N 3 represent 4′‐ p ‐tolyl‐2,2′:6′,2″‐terpyridine and 4′‐ p ‐azidomethylphenyl‐2,2′:6′,2″‐terpyridine,…
<div class="htmlview paragraph">The addition of a proportion of Fatty Acid Methyl Esters (FAME) in automotive diesel fuel is becoming prevalent in different areas of the world. Indeed, in several countries it is now a legislative requirement that a proportion of diesel fuel must be derived from natural sources.…
I suggest to use the effect of Coulomb drag between two closely positioned graphite monolayers (graphene sheets) for experimental measurement of the strength of weak nonlinearities of the spectrum in graphene. I consider trigonal warping as a representative mechanism responsible for the drag effect. Since graphene is…
generation technology due to their high electrical efficiency. They pleo display a multi-fucl capability @ydrogen, carbon monoxide, methane ctc.), may play a role in carbon Sequestration strategies and render the highest electricity generation efficiency in power station h i g n if coupled with a gas turbiie. Still, t…
This paper describes a new method for self-assembling multifunctional nanocomposites with a magnetic core of iron oxide Fe(3)O(4) and a shell of CdSe/ZnS quantum dots (QDs). Two sol-gel processes were applied to form the uniform magnetic seeds (Fe(3)O(4)@SiO(2)-SH) and then the thiol coordination was used to bind the…
We have investigated the output noise level (Eno) and signal-to-noise ratio (SNR) for various magnetoelectric (ME) laminate composites. Our findings show (i) that Eno is nearly independent of materials couple or operational mode and practically determined by the laminate capacitance C and (ii) that the SNR has a scale…
The drift-diffusion mechanism, the interband Zener tunneling theory, and the trap assisted tunneling model are combined to reveal the transport properties in a multicorrelated system of the p-La0.9Sr0.1MnO3∕n-SrNb0.01Ti0.99O3 junction with various temperatures. The good agreement between the calculated and measured I-…
We study the effects of confinement between two parallel walls on a two dimensional fluid with competing interactions which lead to the formation of particle microdomains at the thermodynamic equilibrium (microphases or microseparation). The possibility to induce structural changes of the morphology of the microdomain…
The effects of alpha-particle irradiation on an InAs quantum dot (QD) array and GaAs-based InAs QD solar cells were investigated. Using photoluminescence (PL) mapping, the PL intensity at 872 and 1120nm, corresponding to bulk GaAs and InAs QD emissions, respectively, were measured for a five-layer InAs QD array which…
Abstract The long‐term viscoelastic behavior of reinforced all‐poly(propylene) composites was studied by flexural creep tests. Both unidirectional and cross‐ply laminates were prepared from PURE® coextruded tapes by vacuum bag molding in an autoclave. The specimens were subjected to isothermal creep tests at different…
Barium hexaferrite (BaM) films were deposited on 10nm MgO (111) films on 6H silicon carbide (0001) substrates by pulsed laser deposition from a homogeneous BaFe12O19 target. The MgO layer, deposited by molecular beam epitaxy, alleviated lattice mismatch and interdiffusion between film and substrate. X-ray diffraction…
We demonstrate that a two-dimensional isotropic left-handed materials (LHMs) can be built based on unitary dendritic structure units. Utilizing parameter design, we theoretically deduce a resonant condition in unitary dendritic structure unit, which provided an overlapping negative permittivity and negative permeabili…
The cellular irradiation-cross-linked polypropylene films treated by a hot-press process are corona charged to be piezoelectric. For the samples charged at room temperature, quasistatic piezoelectric d33 coefficients up to 400pC∕N are obtained. The d33 coefficients are slightly dependent on pressure in the range up to…
Nonwoven poly(epsilon-caprolactone) (PCL) nanofibers were prepared by electrospinning technology, and a novel natural bioactive material, soluble eggshell membrane protein (SEP), which is made from natural eggshell membrane (ESM), was then immobilized on the nanofibers after the surface modification. The SEP-immobiliz…
PURPOSE: To retrospectively analyze nephrogenic systemic fibrosis (NSF) cases at our center, to determine prior gadolinium based contrast agent (GBCA) administration and to evaluate possible common risk factors for the development of NSF by reviewing laboratory data and concurrent medications. MATERIALS AND METHODS: A…
The flexoelectric-type piezoelectric composites offer an alternative avenue for the development of piezoelectric ceramics, and since the flexoelectric response is diminished rather than enhanced in lead containing compositions, one of the merits of such composites is that those of highest sensitivity will be lead-free…
The thermoelectric properties of PbTe within the NaCl (B1) and the orthorhombic $Pnma$ phases are extensively studied by ab initio calculations using the full-potential linearized augmented plane-wave method and the semiclassical Boltzmann theory. The calculations of $n$- and $p$-type Seebeck coefficients for the B1 s…
The human skin is an exceedingly complex and multi-layered material. This paper aims to introduce the application of the finite element analysis (FEA) to the in vivo characterization of the non-linear mechanical behaviour of three human skin layers. Indentation tests combined with magnetic resonance imaging (MRI) tech…