Materials Literature
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Electroluminescent devices (ELD) based on junctions of indium doped zinc oxide (ZnO:In) and porous silicon layers (PSL) are presented in this work. PSL with different thicknesses and photoluminescent emission, around 680 nm, were obtained by anodic etching. PSL were coated with a ZnO:In film which was obtained by ultr…
Dendritic microstructures are most dominant patterns in solidified alloys. The microstructural features of these structures control the segregation profiles of solute elements in the interdendritic regions, thus determining the mechanical properties of cast structures. In this study, a 2D model of solid/liquid interfa…
Controlled nucleation and growth of Zinc oxide nanorods is achieved on GaN, etched GaN and AlGaN/GaN heterostructure bottom layers grown by a metal organic chemical vapour deposition technique. The effects of the bottom crystalline layers on the structural, morphological and optical properties of the as grown ZnO nano…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Aijo John K, Vineetha V. Kumar, Deepak M, Manju T; Influence of sputtering power on the optical p…
This study was carried out to determine the potential of Girei Rice Husk Ash (RHA) as reinforcement in metal matrix composite. Rice husk from local millers in Girei market in Adamawa state was collected, prepared and burned in metallurgical furnace at temperatures of 500 o C, 600 o C, 700 o C, 800 o C and 900 o C and…
In the papers of I.K. Zhuk, then more completely of E. Moln?r, I. Prok, J. Szirmai all simplicial 3-tilings have been classified, where a symmetry group acts transitively on the simplex tiles. The involved spaces depends on some rotational order parameters. When a vertex of a such simplex lies out of the absolute, e.g…
In this paper a new process to manufacture unidirectional reinforcements for eco-composite materials, made of natural fibers, is presented. Starting with flax rovings of different sizes, an apparatus was developed to feed and align the rovings over the wet-end section of a paper machine. The short kraft paper fibers a…
Four kinds of gas generant compositions comprised of 5-aminotetrazole nitrate(5-ATN) as the oxidizing component are provided. The combustion gases are determined through qualitative and quantitative analysis by gas chromatograph, ultraviolet spectrophotometer and a comprehensive system of flue gas analyses. The main c…
In this study, 5,10,15-tri[p(9-methoxy-triethyleneoxy)phenyl]-20-[p-phenylisophthalate-β-cyclodextrin]porphyrin, a compound containing a porphyrin and a β-cyclodextrin unit covalently linked by means of an isophthalic bridge, was synthesized and characterized by NMR, MALDI-TOF mass spectrometry and UV-vis and circular…
Rhodamine 6G adsorbed onto a triangular plate-type nanosilver aggregate exhibits a strong SERS peak at 1508 cm−1. Based on NO2− catalysis of the bromate oxidization of Rh6G and SERS peak quenching, trace nitrogen oxides in air samples were analyzed by a catalytic amplification SERS method.
Summary The incorporation of iron oxide nanoparticles into poly(lactic‐co‐glycolic) (PLGA) particles was carried out with an emulsion and evaporation method. To optimize the mean size and the particle size distribution of the particles, the following parameters were modulated: the molecular weight and the hydrolyzatio…
The vDED coiled coil domain from human BAP29 was crystallized in dimeric and tetrameric forms. For the dimer, a disulfide bond was unexpectedly found to bridge a crystal contact, resulting in complete cross-linking along the c-axis. This indicates that it is in principle possible to design spontaneously polymerizing p…
The N -alkyl derivative of 1,9-pyrazoloanthrone has been synthesized, characterized and evaluated as a potent sensor for picric acid.
A setup has been designed to investigate thin films of confined liquids with the use of X-ray scattering methods. The confinement is realized between the flat culets of a pair of diamonds by positioning and orienting the lower diamond with nanometer and micro radian accuracy. We routinely achieve gaps between 5 and 50…
The goal of the present study is development of high strength pure aluminum by Compression shearing method at room temperature. The powder shape and mean particle size of ultrafine-grained pure aluminum thin plate were changed using the compression shearing method at room temperature. The grain sizes of the ultrafine-…
To obtain hierarchical porous ZrO 2 , one simple step is enough by directly decomposing a Zr(NO 3 ) 4 ·5H 2 O ethanol sol–gel solution.
Elastomeric foams with controlled cell size and composition are formed by using calcium alginate hydrogel beads as templates.
In this work, the synthesis of semiconducting molecular materials formed from metallo-phthalocyanines (MPcs) and bidentate amines is reported. Powder and thin-film samples of the synthesized materials, deposited by vacuum thermal evaporation, show the same intra-molecular bonds in IR-spectroscopy studies. The morpholo…
The development of methods for the facile conjugation and radiolabeling of poly(amido)amine (PAMAM) dendrimers would be of great benefit in evaluating biomedical applications of these intriguing molecularly defined polymers. Two anionic N-hydroxysuccinimide (NHS) esters (7 and 10) were developed and radiolabeled with…
High-accuracy solution in structural analysis is normally required in some pre-known domains (regions of structure with the risk of significant stresses that could potentially lead to the destruction, regions subjected to specific operational requirements). This paper is devoted to wavelet-based discrete-continual fin…