Materials Literature
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A method for evaluating weldability is proposed, and processes of welding petrochemical equipment with a wall thickness of 20–200 mm and pipelines produced from steels of almost all strength grades, starting with carbon and low-alloy steels, hot-rolled and normalized steels, steels strengthened by heat treatment and a…
DA–CDGR efficiently quenched the fluorescence of CdSe/ZnS QDs and the fluorescence intensity of DA–CDGR–QDs system was restored by trypsin activity.
El continuo avance de la nanotecnología así como sus aplicaciones en el mejoramiento de la agricultura son una realidad; sin embargo, la información que se posee del impacto de este tipo de tecnología sobre los sistemas biomoleculares es muy escasa. El objetivo del presente documento es construir, desde un punto de vi…
Abstract Active functional group-coated VO2(B) nanorods were successfully synthesized using ammonium metavanadate and oxalic acid solution as the starting materials, by a facile one-pot hydrothermal route for the first time. The results showed the sample consisted of crystalline VO2(B) and amorphous component. The amo…
We report the fabrication and characterization of poly(N-methylpyrrole) nanowires electrode junction based back-gated field-effect transistors under varying dopant atmosphere. Influences of the anionic radius of dopants on electrochemical, morphological, spectroscopic and electrical characteristics of synthesized nano…
Core-shell CdS/ZnS (Zn 0.025-0.125 M) and CdS:Cu(2+) (1%)/ZnS nanoparticles were successfully synthesized using a chemical method. X-ray diffraction (XRD), high-resolution transmission electron microscopy (HR TEM), photoluminescence (PL) and UV/Visible (UV/Vis) techniques were used to characterize the novel CdS/ZnS an…
In this study we present three mechanistic models for profiling the potential biological and toxicological effects of oxide nanomaterials. The models attempt to describe the reactivity, protein adsorption and membrane adhesion processes of a large range of oxide materials and are based on properties either calculated…
BaFe12-2x Cu x Ti x O19 (x = 0, 1, 1.5, 2) were synthesized by the solid state diffusion method. X-ray diffraction (XRD) results confirmed the formation of a single phase magnetoplumbite with hexagonal unit cell of space group P63/mmc. With the increase inx, the lattice parameter a decreased and c increased. Well-form…
We perform finite-element analysis modeling and characterization of quasi-ballistic electrical transport in semiconducting carbon nanotube field effect transistors, and fit experimental electrical transport data from both suspended and on-substrate single-walled carbon nanotube transistors fabricated using chemical va…
The p-n junction diodes are formed by electrostatic doping using two gate electrodes positioned beneath individual, suspended single-walled carbon nanotubes (CNTs). These devices exhibit nearly ideal diode behavior within a small bias voltage range near 0 V. At higher bias (>\vert 0.2 V\vert), nonideal diode behavior…
Abstract The first example of a copper decaarylcorrole, 6 , was isolated during the Suzuki cross‐coupling synthesis of the corresponding undecaaryl derivative 2c . Compounds 6 and 2c were demetalated to produce the free bases 7 and 8 , which were used to prepare the cobalt deca‐ and undecaarylcorroles 9 and 10 . The e…
Fabry-Perot cavities made with photonic crystal (PC) mirrors and other resonant structures exhibit nontraditional characteristics due to the strong wavelength dependence of their reflected phase. This Letter describes how engineering the phase of PC mirrors enables sensors that are tolerant to variations in laser cent…
We modeled the electron and hole states in $\mathrm{Si}/{\mathrm{SiO}}_{2}$ quantum wells within a basis of standing waves using the 30-band $\mathbf{k}\ifmmode\cdot\else\textperiodcentered\fi{}\mathbf{p}$ theory. The hard-wall confinement potential is assumed, and the influence of the peculiar band structure of bulk…
The Y2O3phosphors doped/codoped with Sm3+/Sm3+-Yb3+ions at different concentrations have been prepared using combustion technique. The prepared phosphors are characterized by X-ray diffraction (XRD), Scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) spectroscopy. The average crystallite size of…
This paper deals with the nanorobotic and nondestructive assessment of the stiffness properties of nanopaper made of microfibrillated cellulose. Back-calculations of the Young's modulus show the agreement of the newly found results with conventional tensile testing results, therewith proving nanorobotics as a reasonab…
Guided-mode resonant filters (GMRFs) are promising narrowband filters with high peak efficiency, but their practical applications have been restricted by their natural high angular sensitivity. We investigated the influence of incident angle and azimuthal angle on the spectral response of GMRF, and found that the reso…
The thermally evaporated layer structured BaI2 grows in various completely preferred (hkl) film orientations with different growth parameters like film thickness, deposition rate, substrate temperature, etc. which were characterized by structural, morphological, and optical absorption measurements. Structural analysis…
Four types of electrical steel are analyzed: nonoriented, conventional grain-oriented, double grain-oriented, and high-permeability grain-oriented. The results of field-metric measurement under rotational magnetization were recorded as Bx-Hxand By-Hyloops under controlled circular flux density B and circular magnetic…
Several models available in the literature for modeling drug release were used to describe experimental data on indomethacin dissolution from ordered mesoporous silica MCM-41 and SBA-15. Sigmoid-shape behavior observed experimentally was successfully explained by a drug release model, which relies on the concentration…
ABSTRACT The in situ electrical conductivity (resistance) of electrochemically prepared polyindole (PIn) in ionic liquids was found to be strongly dependent on the nature of the solvents, size of ionic liquid counter ions and preparation technique. Accordingly, the conductivity can be enhanced by about one order of ma…