Materials Literature
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A model consisting of short polymer segments, capable of self assembling to form a branched network through the interaction of their ends, is considered. We investigate the mechanistic origins of a shear induced isotropic–lamellar–columnar transition, reported earlier in this model for living polymers. We find that th…
Определены константы устойчивости молекулярных комплексов тетратозилатов мезо-тетракис(4метилпиридиний)порфирина кобальта и цинка с пиридином, пиперидином и креатинином
Nanoscale palladium (Pd) catalysts supported on XC-72 using a facile one-pot method with glutamate as an additive were synthesized. We found that small Pd nanoparticles with the average size of 3.2 nm dispersed on the surface of XC-72 were prepared through the addition of a certain amount of glutamate into the precurs…
Epitaxial In2O3 films with embedded Fe3O4 oriented nanocolumns were deposited by pulsed laser deposition (PLD) on Y-stabilized ZrO2 (111) substrates. The resulting films show ferromagnetism at room temperature with strong magnetic anisotropy, which can be attributed to the presence of Fe3O4 nanocolumns. Magnetotranspo…
A controversy exists among literature reports of constraints on elastic constants. In particular, it has been reported that embedded atom method (EAM) potentials generally impose three constraints on elastic constants of crystals that are inconsistent with experiments. However, it can be shown that some EAM potentials…
To implement specific guest responsivity, a hydrophobic cholesterol-based co-ligand, cholest-5-en-3-yl-4-isonicotinate (Cholpy), was incorporated into a two-dimensional Hofmann-type Co(II)Ni(II) coordination polymer. The chemically programmed structure successfully demonstrated the unique guest response with remarkabl…
Extensive use of carbon nanotubes (CNTs) in industry and in the consumer market including drug delivery will increase the likelihood of human exposure and the contamination of the ecosystems. The aggregation state of CNTs has a strong influence on their fate and transport in the environment, as well as their bioavaila…
This paper presents an investigation into the delamination toughening and selfhealing properties of carbon-epoxy laminates using through-thickness stitches of mendable thermoplastic (poly[ethylene-co-(methacrylic acid)]). The effect of increasing stitch density on the improvement to the interlaminar fracture toughness…
Increasing the Al concentration in Al-doped ZnO (AZO) is one way of improving the conductivity of this transparent conductive oxide (TCO). Beyond a certain concentration, an unwanted secondary phase develops with a low conductivity. Its stoichiometry is Zn3Al2O6, and its crystal structure has not yet been convincingly…
Graphene is a two dimensional one atom thick allotrope of Carbon. Electrons in grapheme behave as massless relativistic particles. It is a 2 dimensional nanomaterial with many peculiar properties. In grapheme both integral and fractional quantum Hall effects are observed. Many practical application are seen from use o…
Auger-electron-emitting radioisotopes provide a unique tool that enables the targeted irradiation of a small volume in their immediate vicinity. Over the last forty years, Auger emission has been established as a promising form of molecular radiotherapy, and it has recently made the transition from the laboratory to t…
Corrosion of storage tank product side bottoms and tanks of tankers is one of the most critical problems worldwide in oil and gas industry.The protection methods currently in use include cathodic protection systems (CPS) and soluble corrosion inhibitors (SCI).Crude oils contain water and various soluble inorganic and…
CP-Ti and Ti-153 were adopted in this study to observe their electrochemical behavior in serving as the cathode for photovoltaic hydrogen production. The designed cyclic hydrogenation-solution heat treating processes were performed to increase the hydrogen uptake for both alloys. The results are as follows. (1) Both a…
Structural and relaxat ion aspects of plasticizat ion on the examp le of cellulose acetate plastics are studied. Three types of plasticizat ion are examined: the p lasticizer is miscible with the poly mer at processing and operating temperatures; the plasticizer is miscible with the poly mer at processing temperature…
The functionalized pyrrole copolymers were fabricated by electropolymerization of pyrrole (Py) and functionalized pyrrole monomers, pyrrole-3-carboxylic acid (P3C) and 4-(3-pyrrole) butyric acid (PBA). The electrochemical behavior and doping/dedoping properties of the obtained copolymer thin films were investigated by…
Abstract—This paper presents a frequency domain technique for reconstructing the constitutive parameters of inhomogeneous planar layered chiral media based on an optimization approach. The measured co- and cross-reflection and transmission coefficients are used to extract profiles of electromagnetic parameters of the…
The impact loading was performed for various strain rates. Strain rates in the range 2000/s to 2600/s is applicable in defence related applications Maximum and elastic limit strains which the samples exhibited in the range of low strain rates (nearly 1500/s) and high strain rates (nearly 3000/s) have been depicted in…
Bamboo carbon decomposed by low temperature has a high surface area and contains micro-holes; it belongs to one of the amorphous carbon materials. Due to the large lithium storage space and high discharge performance rate, lithium batteries enjoy high power consumption. However, there are also some defects of the firs…
Millimetre long individual single walled carbon nanotubes (SWCNTs) were consistently grown and fabricated into carbon nanotube field effect transistors (CNTFETs). In this work, we extracted the effective mobilities in the strong inversion region, near-threshold region and subthreshold region respectively for these lon…
The design of an efficient quasi-optics Frequency Selective Surface (FSS) filter which is required to provide a -3 dB pass band from 405 GHz to 441 GHz is presented. For atmospheric remote sensing application, this space-borne spatial device consists of a silicon layer and a thin copper layer which is perforated with…