Materials Literature
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<JATS1:p>Textile Quality Assurance is the process of designing, producing, evaluating, and checking products to determine if they meet the desired quality level of a company's target market. Quality Assurance for Textiles and Apparel, second edition, reflects the industry's best practice and most practical efforts to…
Reliability is the key issue concerning ultracapacitor applications. In several power applications ultracapacitors are charged and discharged at high current which causes ultracapacitors heating. This paper presents ultracapacitor ageing according to the temperature. To investigate this effect, a test bench of acceler…
Three new anilido-oxazolines, ortho-C(6)H(4)(NHAr')(4,4-dimethyl-2-oxazoline) [Ar'=2,4,6-trimethylphenyl, HNPh(TriMe)Oxa (1); 2,6-diisopropylphenyl, HNPh(DiiPr)Oxa (2); 2-methoxyphenyl, HNPh(OMe)Oxa (3)], have been prepared. Reactions of 1 or 2 with one molar equivalent of ZnEt(2) in tetrahydrofuran or hexane solution…
The activity of gold/titania catalysts for the room-temperature oxidation of CO can be dramatically enhanced by the addition of sulfate ions to the support; it appears that anion promotion of gold may be a general phenomenon and may be related to the direct modification of active gold sites in the case of sulfate ions…
A new approach to dendrimer property tuning is demonstrated by combinatorial variation of dendrimer branch length and multivalency level, using a large (390 625-member) self-encoded glycopeptide dendrimer library. Ligands for the fucose lectins of Ulex europaeus were identified by screening a combinatorial library of…
The behavior of the current from a porous rotating disk electrode (PRDE) as a function of the rotation rate, electrode geometry, and porosity at large overpotentials is studied experimentally. The current shows a much richer behavior than the flat RDE, including a sigmoidal dependence on the rotation rate. At low rota…
Abstract Scaled analogue experiments with layered brittle and ductile materials have been used to simulate the development of listric growth-fault and expulsion rollover systems during gravitational spreading of a passive margin sedimentary wedge detached on salt. The experiments were performed with varying sedimentat…
Polypyrrole (PPy), like other conducting polymers, has a broad absorption band in the near infrared (NIR) with no evidence of fluorescence emission. We describe the preparation of PPy–EVA blends as potential hot-melt adhesives that can be activated by irradiation with NIR light. The PPy content needed to act as a ther…
Here, we investigate experimentally and theoretically the motion of spherical glass particles of radii 240-310 microm attached to a tetradecane-water interface. Pairs of particles, which are moving toward each other under the action of lateral capillary force, are observed by optical microscopy. The purpose is to chec…
A zinc(II) phthalocyanine-tin(IV) porphyrin dyad with a strong electronic coupling was synthesized and upon light excitation shown to exhibit ultra-fast, long-range electron transfer in a single step.
One of the prerequisites for the detailed understanding of heterogeneous catalysis is the identification of the dynamic response of the catalyst surface under variable reaction conditions. The present study of methanol oxidation on different model Ru pre-catalysts, performed approaching the realistic catalytic reactio…
Elementary mechanisms of electrochemical reactions that take place over solid oxide fuel cell electrodes are not well understood.We present a first-principles approach, combining density functional theory calculations and statistical thermodynamics, aimed at studying electrochemical surface reactions.We have utilized…
A series of spin transition (ST) iron(II) compounds of the type [FeII2](X)2.{S}2 (where is 4'-(4'''-cyanophenyl)-1,2':6'1''-bispyrazolylpyridine, X=ClO4- or BF4-, and S is acetonitrile) was synthesized and magnetically investigated. The effects of the removal of the lattice-solvent molecules and of their different pos…
Using phase field methods, we introduce a penalty formulation for restricting the support of solutions of the hydrodynamic Poisson-Nernst-Plank equations to evolving subregions of the domain. The formulation is derived through variational principles from a free energy involving the phase field and electrostatic energy…
Yellow-emitting a-SiAlON:Eu2+ phosphors were synthesized by the gas reduction and nitridation of a homogeneous oxide precursor in a CaO–Al2O3–SiO2–Eu2O3 system at 1400–1450 °C using an NH3–CH4 mixture gas as a reduction–nitridation agent. The precursor was prepared by a sol–gel process using a low-cost nitrate, tetrae…
Shape memory properties and martensitic transformation of Ti-Nb-Pt alloys were investigated in order to develop Ni-free biomedical superelastic alloys. The effect of Pt addition on the transformation strain was investigated by measuring the lattice constants of the parent and martensite phases of Ti-Nb-Pt alloys. The…
The low-temperature transition in the Zn–Sc 1/1 cubic approximant, reported by Tamura et al. [Phys. Rev. B 71 0902203 (2005)], has been confirmed by the following experimental evidence: (1) anomaly in temperature dependence of electrical resistivity at approximately 153 K, and (2) appearance of weak superlattice refle…
Three {Ru(p-cym)}(2+) (p-cym = p-cymene) derivatives of [Nb(6)O(19)](8-)-[Nb(6)O(19){Ru(p-cym)}](6-) (Nb(6)Ru(1)), trans-[Nb(6)O(19){Ru(p-cym)}(2)](4-) (t-Nb6Ru2), and [Nb(6)O(19){Ru(p-cym)}(4)] (Nb(6)Ru(4))--have been synthesized in water by reaction between [Ru(p-cym)Cl(2)](2) and the hexaniobate. In the solid state…
The most common fabrication technique of porous silicon (PS) is electrochemical etching of a crystalline silicon wafer in a hydrofluoric (HF) acid-based solution. The electrochemical process allows for precise control of the properties of PS such as thickness of the porous layer, porosity, and average pore diameter. T…
A study of the electrical properties and spatial distribution of the ZnO:Al (AZO) thin films prepared by dc magnetron sputtering at low deposition temperature was presented, with emphasis on the origin of the resistivity inhomogeneity across the substrate. Various growth conditions were obtained by manipulating the gr…