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Two routes to the one-dimensional discrete nonpolynomial Schrodinger equation
(Chaos, 2009)
The Bose-Einstein condensate (BEC), confined in a combination of the cigar-shaped trap and axial optical lattice, is studied in the framework of two models described by two versions of the one-dimensional (1D) discrete ...
Determination of thermal shock resistance of silicon carbide/cordierite composite material using nondestructive test methods
(Journal of the European Ceramic Society, 2008)
In the present work Mg-exchanged zeolit and silicon carbide were used as starting materials for obtaining cordierite/SiC composite ceramics with weight ratio 30:70 and 50:50. Behavior of composite ceramics after thermal ...
A mathematical model of the hypothalamo-pituitary-adrenocortical system and its stability analysis
(Chaos, Solitons and Fractals, 2005)
It is commonly assumed that the hypothalamo-pituitary-adrenocorticat (HPA) axis generates oscillations, because a regular daily rhythm of its component hormones is observed. We offer another plausible explanation of the ...
Kinetics of hexavalent chromium sorption on amino-functionalized macroporous glycidyl methacrylate copolymer
(Journal of Hazardous Materials, 2009)
Two samples of macroporous crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate), poly(GMA-co-EGDMA), with different porosity parameters were synthesized by suspension copolymerization and functionalized ...
Stress relaxation in hematite nanoparticles-polystyrene composites
(Macromolecular Rapid Communications, 2000)
The viscoelastic behavior of a polystyrene matrix filled with hematite nanoparticles was investigated using the stress relaxation method. An increase in the elastic moduli of the composites, as well as in the magnitude of ...
Biphonons in the beta-Fermi-Pasta-Ulam model
(Physica. D: Nonlinear Phenomena, 2006)
Discrete breathers or intrinsic localized modes are nonlinear localized states that appear in several classical extended systems, such as for instance the Fermi-Paste-Ulam (FPU) model. In order to probe the quantum states ...
Haemodynamic and clinical effects of ularitide in decompensated heart failure
(European Heart Journal, 2006)
Aims Ularitide is a synthetic form of urodilatin, a natriuretic peptide produced in the kidney with vasodilating, natriuretic, and diuretic effects, that offers promise for the management of decompensated heart failure ...
Magnetic properties of nanoparticle La0.7Ca0.3MnO3 prepared by glycine-nitrate method without additional heat treatment
(Scripta Materialia, 2008)
Nanoparticle La0.7Ca0.3MnO3 was synthesized for the first time by the glycine-nitrate method without additional heat treatment. The average crystallite size of similar to 10 nm obtained by both transmission electron ...
Radiobiological analysis of human melanoma cells on the 62 MeV CATANA proton beam
(International Journal of Radiation Biology, 2006)
Purpose: To measure the ability of protons and gamma-rays to effect cell viability and cell survival of human HTB140 melanoma cells. Materials and methods: Exponentially growing HTB140 cells were irradiated close to the ...