Parameter Optimization of Laminated Multiferroic Composites

Mechanics of Composite Materials - The voltage coefficient of a multiferroic laminated composite consisting of magnetostrictive and piezoelectric phases is minimized by optimization of physical...     

Acylation of alkynes by α-bromobutyroyl tetrafluoroborate

Conclusions The acylation of alkynes by -bromobutyroyl tetrafluoroborate under nonnucleophilic conditions takes place as a reaction involving the conjugated addition of the acylium cation and the bromide anion from the acyl residue over the triple bond by means of a 1, 4 shift.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 5, pp. 1077–1080, May, 1978.     

A mesoscopic model for particle-reinforced composites

Continuum Mechanics and Thermodynamics - The effective or homogenized properties of particle-reinforced composites, which characterize their macroscopic behavior, do not contain any information...     

Phenomenological models of Universe with varying G and Λ

In this article we will consider several phenomenological models for the Universe with varying G and Λ(t), where G is the gravitational ”constant” and Λ(t) is a varying cosmological ”constant”. Two-component fluid model are taken into account. An interaction of the phenomenological form between a barotropic fluid and a quintessence DE is supposed. Three different forms of Λ(t) will be considered. The problem is analysed numerically and behavior of different cosmological parameters investigated graphically. Conclusion and discussions are given at the end of the work. In an Appendix information concerning to the other cosmological parameters is presented.     

Sterospecific reaction of the conjugated acylation of arylacetylenes

Conclusions The acylation of arylacetylenes by cationoid reagents in the presence of aromatic hydrocarbons proceeds as a reaction of stereospecific trans-addition, and leads to a high yield of, -diarylvinyl ketones with a strictly fixed configuration of the aromatic groups.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 12, pp. 2754–2759, December, 1977.     

Conjugated acylation of alkylacetylenes by cationoid reagents in the presence of aromatic hydrocarbons

Conclusions The conjugated acylation of alkynes in the presence of aromatic derivatives is a universal method for synthesizing various -aryl-, -unsaturated ketones.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, pp. 1093–1099, May, 1977.     

Phenomenological Fluids from Interacting Tachyonic Scalar Fields

In this paper we are interested to consider mathematical ways to obtain different phenomenological fluids from two-component Tachyonic scalar fields. We consider interaction between components and investigate problem numerically. Statefinder diagnostics and validity of the generalized second law of thermodynamics performed and checked. We suppose that our Universe bounded by Hubble horizon.