Thermochemistry of Al-Si-Fe(Co, Ni) Ternary Melts

The thermochemical properties of Al-Co-Si liquid alloys remain unexplored. Therefore, to estimate the interaction characteristics of liquid Al-Co-Si alloys we have simulated the mixing enthalpies, using the regular approximation and applying "geometric" model by Bonnier-Caboz

Features of Russian Agribusiness Grape-winery Subcomplex Modernization

The article devotes to the analysis of the Russian agribusiness grape-winery subcomplex current state and to its development features description. The problems of viticulture and winery, that impede the subcomplex development and modernization, are highlighted. These problems are the inability of viticulture farms to satisfy the wineries need for raw materials fully, the high cost of growing grapes, cheap imported wine materials, the lack of competitiveness towards foreign producers, and necessary financial support absence. To develop the wine and wine industry in our country, it is necessary to implement a set of measures at the federal and regional levels. At the federal level, it is necessary to create an appropriate legal framework for high-quality winemaking, which would equally protect the interests of grapes and wine producers, wine trading and consumers. At the regional level, it is relevant to improve the material and technical base state of the viticulture of Russia, because nowadays the industry development does not meet the existing agro technical requirements and lags significantly behind the development of Western countries. Since 2001, the state policy of supporting agricultural production conducted in the last decade and the agroindustrial policy in Russia in general has tended to create a developed wine-growing sub-complex. Over the past few years, when modernizing this subcomplex, vineyards have been renovated, new highly productive varieties have been laid. These measures positively affect the grape production and yield and generally give hope for the grape industry development. Emphasis is placed on key areas, features and prospects for the modernization of the wine and wine subcomplex of Russian agroindustrial complex. This is the implementation of a set of measures at the federal and regional levels. The article describes vectors and stages of the implementation of state policy and financial support in the field of this subcomplex modernization, proposed by the Concept of the Development of Viticulture and Winemaking in the Russian Federation for the period 2016–2020 and the planning period until 2025

Formation of an integrated accounting and analytical management system for value analysis purposes

The article is devoted to the problems associated with the formation and the improvement of accounting and analytical support framework when establishing the business entities’ integrated accounting and analytical managerial system for the value analysis purposes. According to the authors’ opinion, introducing the integrated accounting and analytical system is not only a certain way to improve the efficiency in the managerial decision-making sphere, but also an essential tool throughout the whole value analysis process as well as a tool to improve the qualitative measures of accounting and analytical data required for value analysis. Establishing the integrated accounting and analytical managerial system is an intensive factor to improve the whole analysis process and is intended to optimize the data flows in business entities. It also increases the analyticity of non-engineering and engineering data, that are used in value analysis group’ documents set. Tools that optimizing and structuring the data flows in business entities are analyzed in this article. They are as follows: applying the managerial accounting based on financial responsibility centers and the ad hoc software – i.e., modular database that collects and processes all data from business entity’s subdivisions and helps to create all types of value analysis’ working papers. The pattern of managing value analysis’ in- and out data flows within the integrated system is also revealed by the authors.peer-reviewe

The pulsation mode of the Cepheid Polaris

Publisher's version/PDFA previously derived photometric parallax of 10.10 &plusmn; 0.20 mas, d = 99 &plusmn; 2 pc, is confirmed for Polaris by a spectroscopic parallax derived using line ratios in high dispersion spectra for the Cepheid. The resulting estimates for the mean luminosity of &lang;MV&rang; = &minus;3.07 &plusmn; 0.01 s.e., average effective temperature of &lang;Teff&rang; = 6025 &plusmn; 1 K s.e., and intrinsic color of (&lang;B&rang; &minus; &lang;V&rang;)0 = +0.56 &plusmn; 0.01 s.e., which match values obtained previously from the photometric parallax for a space reddening of EB&minus;V = 0.02 &plusmn; 0.01, are consistent with fundamental mode pulsation for Polaris and a first crossing of the instability strip, as also argued by its rapid rate of period increase. The systematically smaller Hipparcos parallax for Polaris appears discrepant by comparison.</p

μ-Oxalato-bis­[(2,2′-bipyridyl)­copper(II)] bis(perchlorate) dimethyl­formamide disolvate monohydrate

The title compound, [Cu2(C2O4)(C10H8N2)4](ClO4)2·2C3H7NO·H2O, contains doubly charged centrosymmetric dinuclear oxalato-bridged copper(II) complex cations, perchlorate anions, and DMF and water solvate mol­ecules. In the complex cation, the oxalate ligand is coordinated in a bis-bidentate bridging mode to the Cu atoms. Each Cu atom has a distorted tetra­gonal-bipyramidal environment, being coordinated by two N atoms of the two chelating bipy ligands and two O atoms of the doubly deprotonated oxalate anion. Pairs of perchlorate anions and water mol­ecules are linked into recta­ngles by O—H⋯O bonds in which the perchlorate O atoms act as acceptors and the water mol­ecules as donors. Methyl groups of the DMF solvent molecule are disordered over two sites with occupancies of 0.453 (7):0.547 (7), and the water molecule is half-occupied

Evaluation of wheat products with high flavonoid content: justification of importance of marker-assisted development and production of flavonoid-rich wheat cultivars

In the structure of the global commodity supply in the food market in modern conditions it is necessary to note the emergence of a broad group of new high-tech products, and specialized functional food with high value added. The creation of varieties with a high content of flavonoids (plant compounds that can have a positive effect on human health) is one of the important directions of plant breeding oriented on the functional foods development. Currently, however, there is a significant gap between the well-studied role of flavonoids and the genetic control of their synthesis, on the one hand, and development of the actual product of wheat with new properties, evaluation of the nutritional value of the end-use bakery products for consumption, on the other hand. In the present study we produced and investigated bakery products from wheat synthesizing bioflavonoid pigments anthocyanins in the grain pericarp. The grains of this wheat have dark purple color. Red-grained bread wheat was a control. These two wheat lines have almost similar genomes with the exception of a small part of chromosome 2A, which contains the Pp3/TaMyc1 gene regulating anthocyanin biosynthesis. The use of such an accurate model has allowed relating the observed differences precisely with anthocyanin biosynthesis. The important task was to evaluate the resistance of anthocyanins to the backing process. Therefore anthocyanin content was evaluated not only in the end-use product, but also in mixtures of flour and bran used for baking and separately in the bran. As a result, significant differences were detected in samples obtained from purple grains, compared with the control including the products that had passed a full processing cycle, including baking at elevated temperature. For the extraction of anthocyanins conditions were simulated most similar to those in the process of digestion in the stomach, in order to assess the amount of assimilable anthocyanins. By our estimates one can get up to 1.03 mg of assimilable anthocyanins with 100 g of whole-grained bread produced from anthocyanincolored grains. With 100 g of bran, the body will get up to 3.32 g of anthocyanins. In parallel with the evaluation of the anthocyanins content in all samples, the mass fraction of antioxidants was measured by using the amperometric method. The highest antioxidant capacity was shown for bran, while the least one was demonstrated for flour. Adding bran to the flour as well as the backing process increased the antioxidant capacity of wheat products. The contribution of anthocyanins to increased antioxidant capacity is not significant. It was shown that bread-making quality and organoleptic properties of bakery products made from anthocyanin-colored grains did not concede, or in some cases were higher than the corresponding properties of products obtained from control NIL grains. It was found that the presence of anthocyanin increases the shelf life of bakery products and their resistance to molding in provocative conditions. These results, combined with the known data about the beneficial health effects of anthocyanins, suggest that wheat bakery products made from anthocyanin-rich grains can be included to the list for dietary food. Marker-assisted selection accelerating the creation of new forms of crops with a high level of flavonoids can be proposed as a new direction for the expansion of domestic and export grain market potential due to the new possibilities of obtaining products of increased nutritional value and making a good profit

Inductive Type Impedance of Mo/n-Si Barrier Structures Irradiated with Alpha Particles

In silicon microelectronics, flat metal spirals are formed to create an integrated inductance. However, the maximum specific inductance of such spirals at low frequencies is limited to a value of the order of tens of microhenries per square centimeter. Gyrators, devices based on operational amplifiers with approximately the same specific inductance as spirals, are also used. Despite the fact that such solutions have been introduced into the production of integrated circuits, the task of searching for new elements with high values of specific inductance is relevant. An alternative to coils and gyrators can be the effect of negative differential capacitance (i.e., inductive type impedance), which is observed in barrier structures based on silicon. The purpose of the work is to study the low-frequency impedance of Schottky diodes (Mo/n-Si) containing defects induced by α-particles irradiation and determination of the parameters of these defects by methods of low-frequency impedance spectroscopy and DLTS (Deep Level Transient Spectroscopy). Unpackaged Schottky diodes Mo/n-Si (epitaxial layer of 5.5 μm thickness and resistivity of 1 Ohm∙cm) produced by JSC “Integral” are studied. Inductance measurements were carried out on the as manufactured diodes and on the diodes irradiated with alpha particles (the maximum kinetic energy of an α- particle is 5.147 MeV). The impedance of inductive type of the Schottky diodes at the corresponding DC forward current of 10 μA were measured in the AC frequency range from 20 Hz to 2 MHz. DLTS spectra were used to determine the parameters of radiation-induced defects. It is shown that irradiation of diodes with alpha particles produces three types of radiation-induced defects: A-centers with thermal activation energy of E1 ≈ 190 meV, divacancies with activation energies of E2 ≈ 230 meV and E3 ≈ 410 meV, and Ecenters with activation energy of E4 ≈ 440 meV measured relative to the bottom of c-band of silicon