Materials Literature
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Epitaxialfilms of Fe38.5Pd61.5 at the L10-L12 eutectoid composition have been grown on MgO(001) oriented substrates by pulsed laser deposition. The effect of deposition temperature on the magnetic,microstructural, and crystallographic natures of these films are discussed. The films in this study exhibit atomic orderin…
The behavior of end-adsorbed bimodal PS–PEO block copolymer systems was studied with neutron reflectivity experiments, both under static conditions (zero shear rate) and under a stepwise-increasing shear flow, up to a critical shear rate where desorption occurs. It is found that when the height of one kind of chain in…
The electron paramagnetic resonance (EPR) properties of limestone from a certain Egyptian site were investigated in order to propose an efficient and low-cost gamma dosimeter. Radiation-induced free radicals were of one type which was produced in the limestone samples at g=2.0066 after exposure to gamma radiation (60C…
The functionalized carbon nanotube has been shown to be a viable filler material to increase the thermal conductivity of elastomer heat sinks. However, the effect of the amount of fillers used, that is, the carbon loading in elastomers is still unknown. This study focuses on varying the carbon loading percentage, in 0…
ABSTRACT In this article, we present a strategy for fabricating polypropylene (PP)/polypropylene‐regrafted single‐walled carbon nanotube (PP‐re‐g‐SWNT) composites with a high loading of single‐walled carbon nanotubes (SWNTs; 20 wt %). The PP‐re‐g‐SWNTs were characterized by X‐ray photoelectron, Fourier transform infra…
To assess internal annual dose in the general public in Aomori Prefecture, Japan, 80 duplicate cooked diet samples, equivalent to the food consumed over a 400-d period by one person, were collected from 100 volunteers in Aomori City and the village of Rokkasho during 2006–2010 and were analyzed for 11 radionuclides. T…
Iminodiacetic acid (IDA) and tris(2-aminoethyl)amine (TREN) chelating ligands were immobilized on poly(ethylene vinyl alcohol) (PEVA) hollow-fiber membranes after activation with epichlorohydrin or butanediol diglycidyl ether (bisoxirane). The affinity membranes complexed with Cu(II) were evaluated for adsorption of h…
PreviousNext No Access13th International Congress of the Brazilian Geophysical Society & EXPOGEF, Rio de Janeiro, Brazil, 26–29 August 2013Análise das propriedades elásticas de rochas e minerais evaporíticosAuthors: Julio C. R. JustenEurípedes A. Vargas Jr.Irapoan Alves e Ailton L. S. de SouzaJulio C. R. JustenPetrobr…
As an original synthetic route to molecular magnetic materials, we have reacted partially-blocked cyanometalates with preformed coordination cluster. The association of the fac -[Fe(Tp)(CN) 3 ] − assembling metalloligand with the [Cu 3 (OH)(pz) 3 ] 2+ trigonal cluster has afforded a novel coordination network where th…
In this paper we use the GENERIC (general equation for nonequilibrium reversible-irreversible coupling) nonequilibrium thermodynamics framework to derive constitutive equations for the surface extra stress tensor of an interface stabilized by a two-dimensional suspension of anisotropic colloidal particles. The depende…
Based on the analysis of Poisson equation, an analytical surface potential model including interface charge density for nanocrystalline (NC) germanium (Ge) memory devices with p-type silicon substrate has been proposed. Thus, the effects of Pb defects at Si(110)/SiO2, Si(111)/SiO2, and Si(100)/SiO2 interfaces on the r…
Magnetomicelles are amphiphilic block copolymer micelles, which contain magnetic nanoparticles in the core. Magnetomicelles have been proposed as magnetic fluid hyperthermia agents for cancer treatment. Magnetic interactions between nanoparticles within a micelle affect the amount of heat that they dissipate. Here, ma…
This paper presents the development and wind tunnel evaluation of a shape memory alloy (SMA) based smart trim tab for a typical two seater civil aircraft. The SMA actuator was housed in the port side of the elevator for the purpose of actuating the trim tab. Wind tunnel tests were conducted on a full scale horizontal…
The diatom species Synedra berolinensis has been placed in the genus Synedra, Fragilaria, Staurosira, Staurosirella as well as its own monotypic genus, Belanostrum. It is recently returned to Staurosirella. This prompts a pertinent question: Why is Synedra berolinensis so hard to classify? One answer may be the inappr…
Americanae nace como un proyecto conjunto que surge dentro de la Red Europea de Información y Documentación sobre América Latina (REDIAL), y que ha afrontado la Biblioteca de la Agencia Española de Cooperación Internacional para el Desarrollo (AECID). Esta nueva biblioteca virtual hace más accesibles los libros digita…
The wound care industry is a highly diverse and competitive arena including standard products such as dry bandages to sophisticated hydrogels and alginate dressings, and encompassing artificial skin and anti-infective used in wound care. A broad range of available modern dressings composed of layers possessing specifi…
Populations of several Psammothidium species were found in core sediments from nine remote, high elevation, ultraoligotrophic and oligotrophic, Olympic and Cascade Mountain lakes. Three of these species, P. lacustre, P. alpinum, and P. nivale, are described here as new. The morphology of the silica frustules of these…
A pivotal component of hydrological restoration of the Florida Everglades is the improvement of water conveyance to Everglades National Park by the degradation of the current network of canals, roadways and levees. The Tamiami Trail (L29) road/canal complex represents a major barrier to natural water flows into the pa…
Article presents varying hardness of low carbon Hardox 400, medium-carbon 45 and carboniferous 65G steels, wear surfaces the microgeometric characteristics analysis. Steels are thermally processed to reach their maximum hardness range. Wear by fixed abrasive research was performed according the ASTM G 132 – 96 (2007),…
We use density functional theory, with the GGA-PBE functional, to investigate the ability of vanadium oxide clusters, supported on Ag or Au, to break the C–H bond in methane. We perform a thermodynamic analysis to show that the VO 4 cluster is the most likely oxidant and then proceed to calculate the energy of the dis…