Materials Literature
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Biomaterial design is an important component towards tissue engineering applications. There are many parameters that may be adjusted including physical properties (i.e., degradation and mechanics) and chemical properties (e.g., adhesion and cellular interactions). These design components may dictate the success or fai…
The linear growth rate is an essential parameter to describe and simulate the crystal growth processes of solid materials. Concerning the calcite mineral, indirect methods (by depletion of calcium concentration) and direct methods (ex. using microscopic measurements) have been reported in the literature. Here, homogen…
Experiments on protein crystallization on the Russian segment of the International Space Station were started in 2005. These experiments were performed in the Modul’-1 protein crystallization apparatus specially designed for crystal growth by the free-interface-diffusion method. This paper describes experiments on the…
We have tested in experiments and simulations whether stratification can control velocity fluctuations in suspensions of sedimenting spheres. The initial value and early decay of the velocity fluctuations are not affected by stratification. On the other hand, in the descending front where the stratification is strong…
Abstract In this investigation, the effects of blending with ethylene–propylene–diene terpolymer and subsequent dynamic curing with sulfur on the macromolecular structure and properties of pure low‐density polyethylene and high‐density polyethylene were studied. The crosslinking efficiency of polyethylene‐based ethyle…
A facile and scalable preparation of aqueous solutions of isolated, sparingly graphene sheets from low-temperature expanded graphite by liquid-phase method is reported. And the influence of expansion temperature on the property of graphene sheets in expanded graphite is discussed by several characterization methods. T…
Article Refinement of the crystal structure of praseodymium orthoscandate, PrScO3 was published on September 1, 2009 in the journal Zeitschrift für Kristallographie - New Crystal Structures (volume 224, issue 3).
Abstract The Pt-supported rare earth oxide (CeO2, Pr6O11, Eu2O3, and Gd2O3) catalysts were prepared and their selective catalytic reduction (SCR) characteristics for NOx using hydrogen were investigated under 10 vol % excess oxygen conditions. Among them, only the Pt/CeO2 catalyst provided good NO conversion (ca. 80%)…
The paper presents the carbon nanotubes (CNTs) alignment and length dependence with respect to the catalyst pattern design, the fabrication of a CNT MEM switch, nanomanipulating a CNT array by FIB and the electrical characterization of the device to evaluate the electrical and mechanical properties of the CNT membrane…
Abstract Carbon black (CB) and Graphite (GP) were embedded in poly(styrene–ethylene/butylene–styrene) (SEBS) to form CB/SEBS and GP/SEBS composites. The electrical resistance was monitored in situ during tensile, compressive and dynamic mechanical tests, obtaining a correlation between the electrical response and stra…
A hydrophilic radical polymer electrode-based rechargeable battery was designed along the concept of green chemistry. A hydrophilic radical polymer, poly(2,2,6,6-tetramethylpiperidinyloxy-4-yl vinylether), was synthesized as an electrode-active material; its battery demonstrated a high charging–discharging rate and lo…
Eu 2 + doped sorosilicate Ca2ZnSi2O7 (melilite) exhibits a broad band emission peaking at ∼600 nm (∼2 eV) due to the electric dipole allowed transition of 4f65d1 to 4f7 of Eu2+ by an excitation with blue light (460 nm). Strong O2− ligand field with low symmetry due to the layered tetragonal crystallographic structure…
Abstract The objective of this paper is to discuss effect of commingling parameter on characteristics of Glass/Polypropylene commingled hybrid yarns to get homogenous mix of matrix and reinforcement elements in the final yarn. A commingling machine developed to produce hybrid yarn using two techniques viz. mingling te…
Electromagnetic characteristics of single-walled finite-length carbon nanotubes - absorption cross-section and field enhancement in the near zone - are theoretically studied in a wide frequency range from terahertz to visible. The analysis is based on the impedance-type effective boundary conditions and the integral e…
Nanotechnology offers unique opportunities for cancer detection, therapy and the ability to monitor therapeutic interventions. This potential has to be analyzed in context of challenges that need to be overcome in translation of nanoparticles to clinical applications including specific delivery in tissues and clearanc…
This work presents thermal and electrical characterization of SiGe/Si multi-quantum wells (MQWs) with different layer profiles in complete bolometer structures. The thermal property of the bolometers was studied by measuring thermal coefficient of resistivity (TCR) through I-V curves for five temperatures (25, 40, 55,…
The present paper focuses on selected cymbelloid diatom taxa inhabiting Nur Sphagnum bog in northern Mongolia. Samples collected in this area contained numerous species of Encyonema KĂTZING and Cymbopleura (KRAMMER) KRAMMER, that are together acidobiontic, oligotraphentic taxa. Cymbopleura pernaviculiformis, Cymbople…
Correlation energies in the (1s-1p) triplet state of a two-electron spherical QD with square-well potential confinement are estimated for dots of different radii. The results are presented taking GaAs dot as an example. Our results show that the correlation energies are i) negative in a triplet state in contrast to th…
In this work, we have theoretically investigated the possibility to achieve multifrequency transparency and cloaking for a cylindrical object by employing a multilayered plasmonic shell. The frequency dispersion of plasmonic material and the size effect of the cylindrical object have been considered. The analytical tr…
Abstract The potassium pools of five major physiographic units of the Urmia region situated in western Azerbaijan province, north-west Iran, were studied to determine the distribution of K forms as functions of clay mineralogy and physiographic units. Soil samples from horizons of ten pedons were selected and analysed…