The influence of RF plasma treatment at low pressure on the permeability of a polyurethane nanocomposite

The statistical model of treatment of a polyurethane nanocomposite by low-energy ionic streams in RF plasma at pressure in the range 13.3-133 Pa is developed. The dependence of the permeability of a filled nanocomposite on the filler mass fraction, both before and after RF plasma treatment, is theoretically investigated. © 2014 Allerton Press, Inc

Magnetic phase composition of strontium titanate implanted with iron ions

Thin magnetic films were synthesized by means of implantation of iron ions into single-crystalline (1 0 0) substrates of strontium titanate. Depth-selective conversion electron Mössbauer spectroscopy (DCEMS) indicates that origin of the samples magnetism is α-Fe nanoparticles. Iron-substituted strontium titanate was also identified but with paramagnetic behaviour at room temperature. Surface magneto-optical Kerr effect (SMOKE) confirms that the films reveal superparamagnetism (the low-fluence sample) or ferromagnetism (the high-fluence sample), and demonstrate absence of magnetic in-plane anisotropy. These findings highlight iron implanted strontium titanate as a promising candidate for composite multiferroic material and also for gas sensing applications. © 2011 Elsevier Ltd. All rights reserved

Phase formation and relaxor properties of lead-free perovskite ceramics on the base of sodium-bismuth titanate

The work was supported by the Russian Foundation for Basic Research (Projects 16-53-48009, 17-03-00542)

Statistical criterion for comparison of binary classifier accuracy

© Published under licence by IOP Publishing Ltd. An ABC-method (Accuracy Binary Classifier) for a more accurate assessment of the binary classifier's quality compared to the ROC-method (Receiver Operating Characteristic) is proposed. The ABC-method is suitable for quantitative and qualitative measures in independent and dependent small samples and it is not limited by the laws of distribution of objects in a sample. The ABC-method is effective for classification issues in different scientific and applied fields: IT, physical, technical, medical

Statistical criterion for comparison of binary classifier accuracy

© Published under licence by IOP Publishing Ltd. An ABC-method (Accuracy Binary Classifier) for a more accurate assessment of the binary classifier's quality compared to the ROC-method (Receiver Operating Characteristic) is proposed. The ABC-method is suitable for quantitative and qualitative measures in independent and dependent small samples and it is not limited by the laws of distribution of objects in a sample. The ABC-method is effective for classification issues in different scientific and applied fields: IT, physical, technical, medical

Simulation of low-pressure rf plasma treatment of ultrahigh molecular weight polyethylene

© Published under licence by IOP Publishing Ltd. Methods of molecular dynamic simulation of the bombardment of polymeric materials by low-energy (up to 100 eV) ions generated in radio-frequency low-pressure (13.3-133 Pa) plasma are discussed. A model of RF plasma treatment of ultrahigh molecular weight polyethylene (UHMWPE) has been developed. It has been established that the bombardment of UHMWPE by argon ions initiates the fast rotation of the polymer chains, and the rupture of intramolecular bonds

Simulation of low-pressure rf plasma treatment of ultrahigh molecular weight polyethylene

© Published under licence by IOP Publishing Ltd. Methods of molecular dynamic simulation of the bombardment of polymeric materials by low-energy (up to 100 eV) ions generated in radio-frequency low-pressure (13.3-133 Pa) plasma are discussed. A model of RF plasma treatment of ultrahigh molecular weight polyethylene (UHMWPE) has been developed. It has been established that the bombardment of UHMWPE by argon ions initiates the fast rotation of the polymer chains, and the rupture of intramolecular bonds

The influence of RF plasma treatment at low pressure on the permeability of a polyurethane nanocomposite

The statistical model of treatment of a polyurethane nanocomposite by low-energy ionic streams in RF plasma at pressure in the range 13.3-133 Pa is developed. The dependence of the permeability of a filled nanocomposite on the filler mass fraction, both before and after RF plasma treatment, is theoretically investigated. © 2014 Allerton Press, Inc

Etudes Celtiques, vol. 16, 1979.

The statistical model of treatment of a polyurethane nanocomposite by low-energy ionic streams in RF plasma at pressure in the range 13.3-133 Pa is developed. The dependence of the permeability of a filled nanocomposite on the filler mass fraction, both before and after RF plasma treatment, is theoretically investigated. © 2014 Allerton Press, Inc