Materials Literature
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Platinum group metals represent a class of anthropogenic pollutants generated as a byproduct of their use in automobile catalytic converters. We prepared palladium nanoparticles (Pd-NPs, about 6 nm) similar to those emitted in auto exhaust, and examined their behavior in different liquids using dynamic light scatterin…
n total, 37 samples of flexible PVC films were analyzed for specific migration of di-(2-ethylhexyl) phthalate (DEHP) and di-(2-ethylhexyl) adipate (DEHA) from packaging to fatty foods, using simulant. The Resolution n. 17, of March 17, 2008, published by ANVISA, establishes specific migration limits for DEHP in 1.5 mg…
Abstract New flavonol glycoside (I) is isolated and characterized by chemical, spectral and elemental analysis.
The free energy of mixing in the Ti(O,C) shows negative deviation from ideality. A recent paper, Journal of Materials Chemistry A, 2014, 2 , 2641, erroneously shows a large positive deviation from ideality.
Herein, a facile reversible tristate fluorescence switching system “L Ph ↔ 1 ·ClO 4 ↔ 2 or 3 ↔ L Ph ” for copper( i ) complexes and a simple ON ↔ OFF bistate fluorescence switching “L Ph ↔ 5 ·ClO 4 ” for a silver( i ) complex were presented.
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Materials Science To stop a speeding projectile, you need a combination of strength and toughness so that the impact doesn't just pierce the stopping material. The material also needs to dissipate the absorbed kinetic energy. Lee et al. measured the response of multilayer graphene to the projection of microbullets usi…
The present study focuses on the flexural and the indentation behaviour of foam core sandwich panel subject to three point bending and indentation loading at different loading rates. The load-deflection, stress-deflection responses and energy absorption properties of foam core sandwich panel are determined experimenta…
This paper describes a design procedure for an efficient body thermal energy harvesting integrated power converter. This procedure is based on loss examination for a selfpowered medical device. All optimum system parameters are calculated respecting the transducer constraints and the application form factor. It is fou…
The heterogeneous spin states of non-stoichiometric LaMnO 3+δ with low (annealed in argon) and high oxygen (prepared in air) are studied with X-ray diffraction (XRD) and electron spin resonance (ESR). The competition between Mn +3 –O–Mn +4 and Mn +3 –O–Mn +3 spin states results in the coexistence of ferromagnetic (FM)…
In this study, fatigue properties and crack growth characteristics of a polycarbonate (PC) were examined during cyclic loading at various mean stress ( ${\sigma}_{amp}$ ) and stress amplitude ( ${\sigma}_{mean}$ ) conditions. Different S vs. N and da/dN vs. ${\Delta}K$ relations were obtained depending on the loading…
In this work we present the design, fabrication and prototype testing of Chip Integrated Micro PEM Fuel Cell Accumulator (CIμ-PFCA) combined On-Board Range Extender (O-BRE). CIμ-PFCA is silicon based micro-PEM fuel cell system with an integrated hydrogen storage feature (palladium metal hydride), the run time of CIμ-P…
En este trabajo se presenta una expresión que describe la conductividad térmica del dióxido de Uranio con agregado de Gadolinio, teniendo en cuenta la degradación inducida por el quemado alcanzado en el reactor a lo largo del ciclo de operación. El modelo propuesto es comparado con datos experimentales de conductivida…
Abstract Review: 153 refs.
Bimetallic complexes of Co(II)-Sn(IV), Co(II)-Ge(IV) with citric, tartaric, xylaric and 1-hydroxyethylidenediphosphonic acids as activators of polycondensation of phthalic and maleic anhydride with ethylene glycol are investigated. Initial speeds of copolymerization with the threeethylenglycoldimethacrylates, the meth…
In this article, the fiber orientation evolution in the C sf /Mg composites with a large deformation is investigated. The principal strain-induced fiber orientation evolution mechanism, which states that the fiber orientation evolution in the C sf /Mg composites with a large deformation is determined by the principal…
Solvothermal reaction of uranyl acetate and succinic acid in DMF resulted in formation of three uranyl coordination polymers, [(UO2)4(μ2-OH)7(OH)6]·2(H2O)·(H3O)·4NH2(CH3)2 (1), [(UO2)(μ2-OH)(OH)3]·2NH2(CH3)2] (2), and [(DMF)2(UO2)(μ2-OH)4(UO2))] (3). The products were characterized by elemental analysis, IR spectrosco…
Sonodynamic therapy (SDT) is a potential cancer treatment modality that has been gaining support due to its effectiveness in both in vitro and in vivo studies. The therapeutic method combines ultrasonic irradiation with drugs known as sonosensitizers that amplify its ability to inflict preferential damage on malignant…
The addition of 5-[4-(1 H -imidazol-1-yl)-phenyl]-2 H -tetrazole into a lead-acid battery can decrease the redox rates of two electrodes, which is probably due to the partial formation of Pb( ii ) complex.
Two different terpyridine chelated Fe 2+ complexes which contain two methyl-pyridinium salts could be self-assembled with dibenzo-24-crown-8 ether to generate exchangeable double metallo-pseudorotaxanes.