3,5-Bis(4-chloro­benzyl­idene)-1-methyl­piperidin-4-one

In the title mol­ecule, C20H17Cl2NO, the central heterocyclic ring adopts a flattened boat conformation. The dihedral angles between the planar part of this central heterocyclic ring [maximum deviation = 0.004 (1) Å] and the two almost planar side-chain fragments [maximum deviations = 0.015 (1) and 0.019 (1) Å], that include the aromatic ring and bridging atoms, are 18.1 (1) and 18.0 (1)°. In the crystal, pairs of weak inter­molecular C—H⋯O hydrogen bonds link mol­ecules into inversion dimers that form stacks along the a axis. The structure is further stabilized by weak inter­molecular C—H⋯π inter­actions involving the benzene rings

1-Benzyl-3,5-bis­(4-chloro­benzyl­idene)piperidin-4-one

The title compound, C26H21Cl2NO, crystallizes with two symmetry-independent mol­ecules (A and B) in the asymmetric unit. In both mol­ecules, the central heterocyclic ring adopts a sofa conformation. The dihedral angles between the planar part of this central heterocyclic ring [maximum deviations of 0.011 (1) and 0.036 (1) Å in mol­ecules A and B, respectively] and the two almost planar [maximum deviations of 0.020 (1) and 0.008 (1) Å in A and 0.007 (1) and 0.011 (1) in B] side-chain fragments that include the aromatic ring and bridging atoms are 20.1 (1) and 31.2 (1)° in mol­ecule A, and 26.4 (1) and 19.6 (1)° in mol­ecule B. The dihedral angles between the planar part of the heterocyclic ring and the benzyl substituent are 79.7 (1) and 53.2 (1)° in mol­ecules A and B, respectively. In the crystal, weak inter­molecular C—H⋯O hydrogen bonds link the two independent mol­ecules into dimers

Information in the Structure of the Universe

The article says that no scientist who dealt with basic studies of information could discover its physical essence and Information theory does not explain physical basics of this concept. Quantum-entropic logic theory is the first theory revealing physics of information interaction. It postulates that information is described by means of quantum equations, that there are particles capable of information transferring. These postulates eliminate logical contradictions of quantum mechanics related to wave probability function.Key words: Information theory; Physics; Structure of Universe; Postulate

A non-associative quantum mechanics

A non-associative quantum mechanics is proposed in which the product of three and more operators can be non-associative one. The multiplication rules of the octonions define the multiplication rules of the corresponding operators with quantum corrections. The self-consistency of the operator algebra is proved for the product of three operators. Some properties of the non-associative quantum mechanics are considered. It is proposed that some generalization of the non-associative algebra of quantum operators can be helpful for understanding of the algebra of field operators with a strong interaction.Comment: one typo in Eq. (23) is correcte

Normative Method of Strategic Cost Management in the Supply Chain at the Stage of Product Development

Abstract— This paper is devoted to the research and application of normative method of management on target costs in supply chain management. The normative method is a widespread method among foreign companies, but Russian enterprises apply this method not often because of its possible using difficulties. Two aspects of using this method are presented and problems of standards determination are revealed in this study, i.e. at the stage of development product and the stage of it output in supply chain process. Besides that, the existence of conception by management on target costs are discovered and the concrete procedures for application of target norms are presented. The authors lay great stress on control system of enterprise, so for this purpose the algorithm of normative control forming on responsibility centers are developed and presented by scheme. The results of this study allow to increase the competitiveness and the efficiency of enterprise’s activity through cost management in the supply chain process

Development of Cost Analysis Process based on the Supply Chain Strategy

Abstract— This paper discusses the methodology of research and development costs analysis through the supply chain management. Peculiarities of costs formation at early stages of development life cycle are defined, aims and tasks of analysis, method of cost budget analysis in terms of responsibility centers, individual projects and cost items are disclosed. The supply chain management discipline suggests that information sharing is paramount when attempting to achieve cost reductions and quality improvements. Factors have been identified and impact of such factors on costs assessed. Special attention is devoted to the ratio between costs and results and to the ratio between costs and work duration. The analysis of plan and fact costs of separate projects is carried out in supply chain process and by examples of projects creation is considered. Besides that, the algorithm of average costs estimation through the determination of dependence between costs and work duration are presented by formula. The research identifies a theoretical model that can be used to explain the relationships and themes associated with supply chain costing and strategic decision making. Evidence suggests that there is some movement to implement managerial accounting techniques within these two industries to capture supply chain costing information. The results of this study allow to make decisions by supply chain managers for increasing of research and development work efficiency and for cost reduction

Radiation effects of sic on nuclear reactors

Silicon carbides have enjoyed both fundamental study and practical application since the early days of nuclear materials science. In the past decade, with the increased interest in increasing efficiency, solving the real issues of waste disposal, and the constant mission to improve safety of nuclear reactors, silicon carbide has become even more attractive. This ceramic material has wide range of applications due to its high strength, low density, thermal shock resistance. The purpose of this paper is to discuss recent research that does not only strives to understand the remarkable radiation stability of SiC but the radiation effect of SiC under high temperature. This article will expound on the fabrication of SiC, the mechanical behavior and thermaity with regards to the phase transformation which occurs at refractory temperature