Laser-Induced Bleaching of Carbon Nanomaterials Suspensions

We have studied the effect of nanosecond laser pulses on the optical properties of onion-like (OLC) and multi-wall carbon nanotubes (MWNTs) suspensions in N,N-dimethylformamide (DMF). The results demonstrate that both suspensions irreversibly bleach under high-intensity laser radiation. The bleaching is accompanied by losing optical limiting (OL) in suspensions. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3542

Phytoremediation combined with biorefinery on the example of two agricultural crops grown on Ni soil and degraded by P. chrysosporium

During the last few decades, phytoremediation process has attracted much attention because of the growing concerns about the deteriorating quality of soil caused by anthropogenic activities. Here, a tandem phytoremediation/biorefinery process was proposed as a way to turn phytoremediation into a viable commercial method by producing valuable chemicals in addition to cleaned soil. Two agricultural plants (Sinapis alba and Helianthus annuus) were grown in moderately contaminated soil with ca. 100 ppm of Ni and further degraded by a fungal lignin degrader - Phanerochaete chrysosporium. Several parameters have been studied: the viability of plants, biomass yield and their accumulating and remediating potentials. Further down-stream processing showed that up to 80% of Ni can be easily extracted from contaminated biomass by aqueous extraction at mild conditions. Finally, it was demonstrated that the grown onto contaminated soil plants can be degraded by Phanerochaete chrysosporium and the effect of nickel and biomass pre-treatment on the solid state fermentation was studied. The proposed and studied in this work methodology can pave the way to successful commercialization of the phytoremediation process in the near futur

Perovskite B-Site Compositional Control of [110]p Polar Displacement Coupling in an Ambient-Pressure-Stable Bismuth-based Ferroelectric

Eine neuer Blei-freier Bismutperowskit wurde bei Umgebungsdruck in der polaren Pmc21-Struktur gebildet. Messungen liefern Beweise für Ferroelektrizität und Piezoelektrizität. Das Material zeichnet sich durch eine Rotation der Polarisationsrichtung abseits der [111]p-Achse aus und ist somit für das Design von Materialien mit morphotroper Phasengrenze interessant

Features of the qualification of fraud committed using the opportunities of the forex market

The article analyzes one of the most common types of fraud at present, which is the appropriation of funds by performing currency transactions using the Forex market. The authors highlight the peculiarities of this market functioning, which complicate the process of investigating the fraud committed here (the lack of legal regulation in the Russian Federation, the disguise of the crimes committed under high-risk civil transactions; the use of forex dealers registered in the territory of foreign countries, difficulties arising in connection with obtaining information from foreign operators). A reasonable conclusion is made that the consequence of these factors is the evasion of persons who commit such criminal acts from criminal prosecution by the competent authorities and officials on the territory of the Russian Federation and, accordingly, the actual lack of successful examples of the judicial and investigative practice of bringing them to justice

Magnetic properties and giant magnetoimpedance in amorphous and nanocrystalline microwires

We studied magnetic properties and GMI effect of Finemet-type FeCuNbSiB microwires. We observed that GMI effect and magnetic softness of microwires produced by the Taylor-Ulitovski technique, can be tailored by either controlling magnetoelastic anisotropy of as-prepared FeCuNbSiB microwires or controlling their structure by heat treatment or changing the fabrication conditions. GMI effect has been observed in as-prepared Fe-rich microwires with nanocrystalline structure.This work was supported by EU ERA-NET programme under project "SoMaMicSens" (MANUNET-2010-Basque-3), by Spanish MICINN under project MAT2010-18914, by the Basque Government under Saiotek-12 MEMFOMAG project (S-PE12UN139) and by federal target program "Scientific and scientific-pedagogical personnel of innovative Russia", state contract no 14.R18.21.0762. A. Zh. and V.Zh. wish to acknowledge support of the Basque Government under the Mobility Program (grants MV-2013-2-22 and MV-2013-2-23). Technical and human support provided by SGIker (UPV/EHU, MICINN, GV/EJ, ERDF and ESF) is gratefully acknowledged

Giant magnetoimpedance effect in nanocrystalline microwires

We studied GMI effect and magnetic properties of Finemet-type FeCuNbSiB microwires. We observed that GMI magnetic field and frequency dependences and magnetic softness of composite microwires produced by the Taylor-Ulitovski technique can be tailored either controlling magnetoelastic anisotropy of as-prepared FeCuNbSiB microwires or controlling their structure by heat treatment or changing the fabrication conditions. GMI effect has been observed in as-prepared Fe-rich microwires with nanocrystalline structure.This work was supported by EU ERA-NET programme under project "SoMaMicSens" (MANUN ET-2010-Basque-3), by EU under FP7 "EM-safety" project, by Spanish Ministry of Science and Innovation, MICINN under Project MAT2010-18914, by the Basque Government under Saiotek 11 MICMAGN project (S-PE11UN087) and by federal target program "Scientific and scientific-pedagogical personnel of innovative Russia", state contract No. 14.18.21.0783