Techniques of analysing heat conditions in electron devices of spacecraft

On the bases of thermal macrolevel models of electron device and construction elements the technique of analysing heat conditions of unpressurized electron spacecraft equipment has been developed. The technique involves formation of electric loss sequence diagram for connected thermal and electric analysis, which makes possible to increase the accuracy and reliability of heat analysis for the device and its elements

Una tablilla de maldición de la necrópolis de Panticapeo (SEG LXIII 616) revisitada

The article is devoted to examining readings and establishing the text of one Bosporan magic tablet from Panticapaeum. The author proposes a new text of the inscription with a critical apparatus and discusses a new interpretation of this monument given recently by Eleni Chronopoulou against the broader background of ancient magical practice.El artículo está dedicado a verificar la lectura y establecer el texto de una tablilla mágica de Panticapeo. El autor propone un nuevo texto con aparato crítico de la inscripción y discute la nueva interpretación ofrecida recientemente por Eleni Chronopoulou desde el contexto más amplio de las prácticas mágicas en la Antigüedad

Asymptotics for the number of n-quasigroups of order 4

The asymptotic form of the number of n-quasigroups of order 4 is $3^{n+1} 2^{2^n +1} (1+o(1))$. Keywords: n-quasigroups, MDS codes, decomposability, reducibility.Comment: 15 p., 3 fi

Algorithms for solving inverse geophysical problems on parallel computing systems

For solving inverse gravimetry problems, efficient stable parallel algorithms based on iterative gradient methods are proposed. For solving systems of linear algebraic equations with block-tridiagonal matrices arising in geoelectrics problems, a parallel matrix sweep algorithm, a square root method, and a conjugate gradient method with preconditioner are proposed. The algorithms are implemented numerically on a parallel computing system of the Institute of Mathematics and Mechanics (PCS-IMM), NVIDIA graphics processors, and an Intel multi-core CPU with some new computing technologies. The parallel algorithms are incorporated into a system of remote computations entitled "Specialized Web-Portal for Solving Geophysical Problems on Multiprocessor Computers." Some problems with "quasi-model" and real data are solved. © 2013 Pleiades Publishing, Ltd

Transformation of value and income indicators and their accounting and analytical support

Purpose: The objective of the article is to identify and evaluate transformational changes related to the degree of usefulness of effective financial indicators formed on the accounting basis. These indicators are extremely important for choosing the most effective investment and economic policy of the stakeholders. Structure/Methodology/Approach: To improve the quality and the value of accounting information, as well as to manage the profits and the value of business entities, the following has been revealed: first, the impact of static and dynamic concept of accounting; second, capabilities and limitations of integration of various accounting models and procedures; third, recommendations allowing adoption of accounting tools to the procedures of increasing standardization in financial statements. Findings: In order to reveal the impact of modern accounting procedures on the system of financial and economic performance indicators, a system of accounting procedures and indicators has been proposed. Practical Implications: The results of this study can be implemented into management practice to improve efficiency of property management for business units. Originality/Value: The core value of the study is to shift emphasis onto the aggregation of accounting and analytical tools for evaluation of property and inclusion of information reliability parameters into the system of financial and economic forecasting of business development.peer-reviewe

Representations of (2,n)(2,n)-semigroups by multiplace functions

We describe the representations of $(2,n)$-semigroups, i.e. groupoids with $n$ binary associative operations, by partial $n$-place functions and prove that any such representation is a union of some family of representations induced by Schein's determining pairs.Comment: 17 page