Materials Literature
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Corrosion performance of zinc coatings containing aluminum in excess of 5% was assessed in modified salt-spray tests. X-ray diffraction studies indicated that the corrosion products consisted mainly of simonkolleite Zn5(OH)8Cl2·H2O, hydrozincite Zn5(OH)6(CO3)2, and zinc aluminum carbonate hydroxide hydrate Zn6Al2(OH)1…
Exact analysis of spin crossover in infinite elastic chain of two-spin exchange clusters was performed theoretically beyond mean-field approximation. Statistical mechanics of the system was exactly calculated by means of the transfer matrix technique. A possibility of spin-Peierls-like magneto-structural transition in…
Herein we describe the unique luminescent behavior observed in [Ce(IV)(W(5)O(18))(2)](8-) clusters and examine the photophysical properties using density functional theory.
Bent In2O3(ZnO)n/ZnO (n = 4 and 5) heterostructure nanobelts were successfully synthesized by a simple thermal vapor method for the first time, using Au as a catalyst. The heterostructures were characterized by transmission electron microscopy and nanoprobe X-ray energy dispersive. The relationship between the strain…
The Environmental Impacts of Fire-Fighting Foams Extinguishing foams are commonly used for extinguishing the fire of flammable liquids, whereby their insulating, choking and quenching effects are exploited. The purpose of the paper is to consider and compare the foams currently used in fire departments, regarding main…
A new heterometallic Mn/Cr molecular wheel complex has been synthesized using zerovalent manganese, Reineckes salt, ammonium thiocyanate and triethanolamine (H(3)tea) as starting materials. The compound [Mn(3)Cr(4)(NCS)(6)(Htea)(6)] (1) has been characterized in terms of its electrochemical, IR and EPR spectroscopic a…
A combination of electrochemical methods and X-ray photoelectron spectroscopy has been used to study the combined influence of and dissolved on the oxidation of SIMFUEL ( electrodes fabricated to simulate spent nuclear fuel without the accompanying radiation fields) electrodes in 0.1 mol/L KCl (pH 9.5) at . The SIMFUE…
Blends of chitosan (CS) and polyvinyl alcohol (PVA) of different proportions (considering chitosan as the main component) were prepared. The rheological properties of the obtained blend solutions such as the shearing viscosity and the shear stress were investigated as a function of shear rate under various temperature…
Polycrystalline (CCTO) ceramics were prepared via a wet-chemistry method. Complex dielectric permittivity spectroscopy was performed on CCTO ceramics. We noticed that three distinct Maxwell–Wagner relaxations were clearly separated and could be associated with three mechanisms of extrinsic origins. These relaxations,…
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The cost of manufacturing bipolar plates is a major component to the overall cost structure of a Proton Exchange Membrane (PEM) fuel cell stack. To achieve the commercialization of PEM fuel cells, a high volume and low cost manufacturing process for the bipolar plate must be developed. American Trim has identified hig…
This guide aims to distil conclusions from existing research and practical experience, develop good practice guidance on marine concrete materials selection and design, and set out guidance on pre-casting of a variety of elements.
In solutions of cellulose in 1-alkyl-3-methyl-imidazolium ILs, both the ionic liquid and the cellulose are evidently not inert. Side reactions can be distinguished according to whether they involve the cation or the anion of the ionic liquid or just autodegradation products of the IL. Ionic liquids with 1-alkyl-3-meth…
Transportations of rivastigmine containing liposomes across Caco-2 cells were studied and in vitro test results were compared with in vivo results. MTT test was used for cell viability studies. Series of formulations were prepared containing rivastigmine which is used for the treatment of Alzheimer's disease. Characte…
In this work, silver-N-carboxymethyl chitosan nanocomposites (Ag-N-CMC) were synthesized in the homogeneous state via the reduction of Ag+ (using [Ag(NH3)2]OH instead of AgNO3) by NaBH4 in the presence of water-soluble N-carboxymethyl chitosan as a stabilizer. The resulting Ag-N-CMG was characterized by FTIR, TEM and…
Natural fiber reinforced composite materials are one such capable material which replaces the conventional and synthetic materials for the practical applications where there require less weight and energy conservation. Increasing concern about global warming and depleting petroleum reserves have made scientists to foc…
The gadolinium species present in a rat kidney following intravenous administration of a gadolinium-based magnetic resonance contrast agent (Optimark™, Gadoversetamide injection) to a rat was examined in the present study. The major gadolinium species in the supernatant of the rat kidney tissue extracts was determined…
Synthesis of paramagnetic gadolinium monosulfide nanoparticles at low temperature is achieved using dextrose ligands.
In order to characterize the yield behavior of polypropylene as a function of pressure and to verify the applicability of the Drucker-Prager yield function, various tests were conducted to cover a wide range of stress states from uniaxial tension and compression to multiaxial tension and confined compression. Tests we…
The wheel shaped polyoxoanion [Rb3⊂{VVVIV3O7(H2O)6}2{H6P6W39O147(H2O)3}]15− comprising a macrocyclic tungstophosphate template wheel [P6W39O147(H2O)3]30− ({P6W39}) capped by two unprecedented mixed-valent oxovanadium {(VVO)(VIVO)3(µ2-O)3(H2O)6}3+ groups has been prepared and characterized by X-ray diffraction, element…