Materials Literature
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Abstract Electrosurgical vessel sealing is used throughout many surgical procedures with the benefits of the device widely reported. However, there is still significant variation in the quality of the resulting seal with limited understanding as to why. This study developed a methodology to use digital image correlati…
We study theoretically the characteristics of surface waves excited at the interface between a metal and a general bi-isotropic medium, which includes isotropic chiral media and Tellegen media as special cases. We derive an analytical dispersion relation for surface waves, using which we calculate the effective index…
Abstract Preferential weld corrosion (PWC) remains a major operational challenge that jeopardizes the integrity of oil and gas carbon steel pipelines. Corrosion inhibition is conventionally used to mitigate this problem however several indications suggest that some corrosion inhibitors may increase PWC. This work ther…
To develop a detailed picture of the microscopic structure of gelcore star polymers and to elucidate parameters of the synthetic process that might be exploited to control this structure, simulations of their synthesis were performed that were based on a particular synthetic approach. A range of results was observed f…
Abstract C60H66N2Ti2, triclinic, P1̅ (no. 2), a = 8.8070(3) Å, b = 11.9544(5) Å, c = 12.3447(5) Å, α = 66.7623(13)°, β = 89.0505(13)°, γ = 80.9952(13)°, V = 1178.06(8) Å3, Z = 1, R gt(F) = 0.0426, wR ref(F2) = 0.1046, T = 100(2) K.
We report the discovery of a less symmetric crystalline phase of Mn12 acetate, a triclinic phase, resulting from recrystallizing the original tetragonal phase reported by Lis in acetonitrile and toluene. This new phase exhibits the same structure of Mn12 acetate clusters and the same positions of tunneling resonances…
Fibre Structure states that each and every fibre from their manufacturing (man-made fibres) or during development (natural fibres) creates and develops its own and specialized structure. It might be the chemical structure, crystalline structure, amorphous structure and/or morphology. This structure can be modified dur…
This study investigates the effects of hydrogen enrichment on formation of pollutants and greenhouse gases in gas-fueled spark ignition engines. To this end, a previously validated detailed mechanism is embedded with a comprehensive one-dimensional engine model and the results are verified with experimental observatio…
Salt flux synthesis of single and bimetallic carbide nanowires, Leonard, Brian M, Waetzig, Gregory R, Clouser, Dale A, Schmuecker, Samantha M, Harris, Daniel P, Stacy, John M, Duffee, Kyle D, Wan, Cheng
Disperse dyes containing a β‐sulphatoethylsulphonyl group have temporary solubility and can be applied for dispersant‐free dyeing of hydrophobic fibre. Six novel temporarily solubilised azo disperse dyes having a β‐sulphatoethylsulphonyl group in their structures were synthesised, and their dyeing properties on polyes…
Porous TiNx Oy -based particles were synthesized by an aerosol spray process. At first, the starting sol solution containing the metal precursor and the nitrogen source is sprayed to form an aerosol that is subsequently pyrolysed at different temperatures. The obtained dried particles are an amorphous coordination "po…
Cenosphere-filled epoxidized cardanol syntactic foams were fabricated using stir-casting technique: 10–40 wt% of cenosphere was mixed gradually in several steps in order to avoid any damage of the cenosphere. The syntactic foams were cured at room temperature for a day followed by postcure for 3 h at 100°C. Completion…
We report a computational work on the electronic structure and derivatization of (#1911)C64. By means of computations based on density functional theory, we find that (#1911)C64 in states of closed-shell singlet (CS), open-shell singlet (OS), and triplet are iso-energetic with an energy difference less than 0.1 kcal m…
Despite its huge successes in total-energy-related applications, the Kohn-Sham scheme of density functional theory cannot get reliable single-particle excitation energies for solids. In particular, it has not been able to calculate the ionization potential (IP), one of the most important material parameters, for semic…
UNLABELLED: Burkholderia thailandensis is a soil-dwelling bacterium that shares many metabolic pathways with the ecologically similar, but evolutionarily distant, Pseudomonas aeruginosa Among the diverse nutrients it can utilize is choline, metabolizable to the osmoprotectant glycine betaine and subsequently cataboliz…
Abstract We investigated the thermal properties of quantum-dot light-emitting diodes (QLEDs) using composition-gradient thick-shell CdSe@ZnS/ZnS QDs. Thick-shell QDs with low defective structures effectively prevented electron–hole pairs from nonradiative Auger recombination. More specifically, defects were prevented…
We have used time-of-flight inelastic neutron scattering to measure the spin wave spectrum of the canonical half-doped manganite ${\mathrm{Pr}}_{0.5}{\mathrm{Ca}}_{0.5}{\mathrm{MnO}}_{3}$ in its magnetic and orbitally ordered phase. The data, which cover multiple Brillouin zones and the entire energy range of the exci…
Abstract Structural chemistry began with Louis Pasteur, who first saw the configuration of molecules manifest in the shapes of crystals. Here is reviewed forgotten, century‐old efforts to make molecular configuration vivid in polycrystalline ensembles. Resorcinol, and a variety of other simple molecular crystals, when…
Barium has been established as an alternate codopant other than conventional aluminum or phosphorous for fabrication of rare‐earth‐ (RE) doped optical fiber through modified chemical vapor deposition (MCVD) coupled with solution doping technique. Different optical and material characterization results of our fabricate…
A multicomponent vaporization model is integrated with detailed fuel chemistry and soot models for simulating biodiesel–diesel spray combustion. Biodiesel, a fuel mixture comprised of fatty-acid methyl esters, is an attractive alternative to diesel fuel for use in compression-ignition engines. Accurately modelling of…