Materials Literature
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A Comment on the Letter by A. Dutta et al., Phys. Rev. Lett. 101, 115506 (2008). The authors of the Letter offer a Reply.Received 19 February 2010DOI:https://doi.org/10.1103/PhysRevLett.105.099601© 2010 The American Physical Society
The uniaxial natural fabric Grewia tenax was treated with sodium hydroxide, acetic acid, poly(vinyl alcohol) (PVA), and polycarbonate (PC) solutions, and characterized by a variety of techniques. Differential scanning calorimetry and thermogravimetry were used to characterize the thermal behavior of the fabric. Attenu…
Significant improvements in the performance of p-doped ten-layer InAs/InGaAs quantum dot laser are demonstrated using rapid thermal annealing at 600 °C. The annealed laser shows about 2.7 times increase in the saturated output power and external differential quantum efficiency without obvious wavelength shift. Decreas…
The aerial parts of Ironwort (Sideritis ssp.) have been used for a long time, commonly known as „Mountain tea“ in Greece, Turkey, Bulgaria and Albania. Mountain farmers around eastern Mediterranean region drunk beverages and classical (caffeine-free) tea preparations from Herba Sideritis traditionally after work for c…
International audience
A high-pressure flowing oil dielectric switch was developed for high-performance, high-voltage switching. It was evaluated by a team at the University of Missouri-Columbia. The switch was designed to produce a continuous train of nanosecond-rise electrical impulses, with a peak output power ranging up to several gigaw…
We consider a modified statement for the electrochemical shaping problem. In modeling the process of the anodic dissolution we use a jump-like current efficiency function that defines the rate of the movement of the anode border. The anode surface is divided into three parts, namely, that of the active dissolution, th…
Three kinds of TCC (transmission cross coefficient) calculation algorithms used for partially coherent imaging simulation, including the integration algorithm, the analytical algorithm, and the matrix-based fast algorithm, are reviewed for their rigorous formulations and numerical implementations. The accuracy and spe…
We investigate the polarization singularities in the metal-insulator-metal (MIM) plasmonic waveguide structure. It turns out that there exist L-line and C-point polarization singularities for the antisymmetric plasmonic mode in the MIM plasmonic waveguide. These polarization singularities have unique properties becaus…
Electrical power distribution equipment, such as medium-voltage (MV) switchgear, must be designed to withstand the pressures and temperatures of gases resulting from an internal arcing fault. An original way to limit the external effects of the arc consists in channeling downward the gas flow across a filter composed…
Proton exchange membrane fuel cells (PEMFCs) have aroused great interest in recent years, in particular for transportation applications. However, fuel cell (FC) technology is not yet ready for large-scale commercial use, as it requires more understanding and intensive development, in particular in the thermal behavior…
Purpose: The role of mixed reductant systems in photogalvanic cells was studied in a photogalvanic system containing Azur A as photosensitizer, EDTA as reductant, which was mixed with dextrose, NTA and oxalic acid, respectively, for increasing the conversion efficiency and storage capacity of photogalvanic cells. Desi…
Abstract 1,5‐Dimethyl‐3‐phenyl‐6‐oxoverdazyl radical was recently shown to undergo a disproportionation reaction to form an azomethine imine, which reacted with a series of dipolarophiles, to form novel tetrahydropyrazolotetrazinone heterocyclic structures, demonstrating for the first time the use of verdazyl radicals…
Solenostemma argel (Del.) Hayne is a perennial shrub widely distributed in the deserts of North Africa. The decoction of the leaves was used in folk medicine as a antispasmodic for the treatment of various colic [1]. Continuing our researches on S. argel [2], in the present study we investigated the implication of col…
In this paper, we propose a high-performance kink-effect-free bottom-gated polycrystalline (poly-Si) thin-film transistor with a drain-extended field plate (FP) structure. The extended-drain FP can distribute the electric field to the channel near the drain area and, particularly, can change the electron current path.…
A multiscale quasicontinuum density functional theory method is used to study the solid solution effect on dislocation nucleation during nanoindentation. Specifically, an Al thin film with Mg impurities is considered. We find that the solid solution effect depends sensitively on the local configuration of the impuriti…
High-contrast top-emitting organic light-emitting diodes are successfully fabricated using a Ni/ZnS/copper-phthalocyanine (CuPc)/Ni contrast-enhancing stack (CES) and a ZnS anti-reflection (AR) layer. The CES and AR layer that are outside the active region reduce the complexity of the device design although their util…
This work has examined the photoreactivity of benzophenone (3), 2-benzoylthiophene (4), 4-methoxybenzophenone (5), 4,4'-dimethoxybenzophenone (6), and 4-carboxybenzophenone (7) with 2-aminobenzimidazole (1). Laser flash photolysis (LFP) revealed quenching of the aromatic ketone triplets by 1, leading to formation of k…
Abstract Tandem atom transfer radical polymerization (ATRP) and nitroxide‐mediated radical polymerization (NMRP) were used to synthesize a polystyrene‐co‐poly(acrylic acid) (poly(St‐co‐AA)) network, in which the two components were interconnected by covalent bond. First, a specific cross‐linker, 1,4‐bis(1′‐(4″‐acryloy…
In this paper, a deterministic Boltzmann equation solver based on a higher order spherical harmonics expansion, including full-band (FB) effects, is presented. An anisotropic band structure for the conduction band with an invertible energy/wave vector relation has been generated by matching several moments of the grou…