Study of the physical properties of crystalline rocks in the southeast Voronezh anteclise

The physical properties of rocks, in the crystalline mass of the Voronezh anteclise, were studied. The study of the physical properties of rocks is important for the improvement of geophysical methods for mapping crystalline rocks in the foundation and exploration of different geological objects which are associated with the crystalline foundation, covered by the sedimentary mantle. It is found that: (1) rocks in the crystalline foundation are very different in physical properties; (2) the physical properties are closely related to their substance composition and genesis; (3) petrographic properties give clues of rock afficiation to certain complexes; and (4) physical and magnetic properties should be examined by petrography, chemical and X-ray analysis

Covert Ephemeral Communication in Named Data Networking

In the last decade, there has been a growing realization that the current Internet Protocol is reaching the limits of its senescence. This has prompted several research efforts that aim to design potential next-generation Internet architectures. Named Data Networking (NDN), an instantiation of the content-centric approach to networking, is one such effort. In contrast with IP, NDN routers maintain a significant amount of user-driven state. In this paper we investigate how to use this state for covert ephemeral communication (CEC). CEC allows two or more parties to covertly exchange ephemeral messages, i.e., messages that become unavailable after a certain amount of time. Our techniques rely only on network-layer, rather than application-layer, services. This makes our protocols robust, and communication difficult to uncover. We show that users can build high-bandwidth CECs exploiting features unique to NDN: in-network caches, routers' forwarding state and name matching rules. We assess feasibility and performance of proposed cover channels using a local setup and the official NDN testbed

Niels Bohr’s principle of complementarities in political economy

The development of the principle of complementarity by a well-known Danish physical scientist N. Bohr was the outstanding achievement of philosophical idea, having prime value to explain quantum mechanics phenomena and biological and social (including economic) phenomena sufficiently differing from them. This principle focuses the attention of the researchers on revelation of dualistic, dialectically contradictory essence of the phenomenon studied. Such task cannot be solved using some single category whatever significant and universal it is. Three categories shall be used for this. One for designation of a basic phenomenon per se, two others to describe additional properties, revealing dualistic, dialectically contradictory essence of the phenomenon studied. Such approach allows developing the required theoretic and methodological tools to study dualistic, contradictory nature of economic phenomena and processes as a two-pole model of the economic phenomenon (ABC model), embodying the principle of complementarity in political economy. This model may be used as a tool for critical analysis of conceptual framework of economics and development of scientific novelty. The article shows that theoretic interpretation of many economic phenomena has stood the test from ABC model position, some of them could not overcome such a test. These are, for example: nominal salary, labour productivity, marketing and advertising. Analysis using ABC model revealed that their widespread theoretical interpretations ignore the essential characteristics of these phenomena. The principle of complementarity which fixed inherent dualistic dialectically contradictory structure as the required step of cognition of nature and society phenomena essence plays the most important methodological role in the analysis of economic phenomena.peer-reviewe

Model of Economic Phenomenon

As is known, economic phenomena represent the most important part of the subject of economic science. However, modern economic theory avoids a clear definition of this category. Thus, it remains unclear what is economic phenomena, and thus the economy is in its essence as suc

The multilevel trigger system of the DIRAC experiment

The multilevel trigger system of the DIRAC experiment at CERN is presented. It includes a fast first level trigger as well as various trigger processors to select events with a pair of pions having a low relative momentum typical of the physical process under study. One of these processors employs the drift chamber data, another one is based on a neural network algorithm and the others use various hit-map detector correlations. Two versions of the trigger system used at different stages of the experiment are described. The complete system reduces the event rate by a factor of 1000, with efficiency $\geq$95% of detecting the events in the relative momentum range of interest.Comment: 21 pages, 11 figure

Effect of local thermal equilibrium misbalance on long-wavelength slow magnetoacoustic waves

Evolution of slow magnetoacoustic waves guided by a cylindrical magnetic flux tube that represents a coronal loop or plume, is modeled accounting for the effects of finite gas pressure, weak nonlinearity, dissipation by thermal conduction and viscosity, and the misbalance between the cooling by optically thin radiation and unspecified heating of the plasma. An evolutionary equation of the Burgers–Malthus type is derived. It is shown that the cooling/heating misbalance, determined by the derivatives of the combined radiative cooling and heating function, with respect to the density, temperature, and magnetic field at the thermal equilibrium affect the wave rather strongly. This effect may either cause additional damping, or counteract it, or lead to the gradual amplification of the wave. In the latter case, the coronal plasma acts as an active medium for the slow magnetoacoustic waves. The effect of the cooling/heating misbalance could be important for coronal slow waves, and could be responsible for certain discrepancies between theoretical results and observations, in particular, the increased or decreased damping lengths and times, detection of the waves at certain heights only, and excitation of compressive oscillations. The results obtained open up a possibility for the diagnostics of the coronal heating function by slow magnetoacoustic waves

Dynamics of the Pionium with the Density Matrix Formalism

The evolution of pionium, the $\pi^+ \pi^-$ hydrogen-like atom, while passing through matter is solved within the density matrix formalism in the first Born approximation. We compare the influence on the pionium break-up probability between the standard probabilistic calculations and the more precise picture of the density matrix formalism accounting for interference effects. We focus our general result in the particular conditions of the DIRAC experiment at CERN.Comment: 14 pages, 2 figures, submitted to J. Phys. B: At. Mol. Phy

Механизм образования пленкообразующей среды при высокочастотном напылении сегнетокерамики состава BaxSr1-xTiO3

The mechanism of formation of a film-forming medium during high-frequency deposition of strontium barium titan (BaxSr1-xTiO3) films in oxygen is considered. The study of the film-forming medium by mass spectrometry showed that when spraying BaxSr1-xTiO3 in oxygen plasma, the energy of oxygen ions 10-17–10-16 J is sufficient to transfer polyatomic molecules from the surface to the gas phase and insufficient to break the molecule into its constituent components both in the target substance and in the gas phase. The analysis of the mass spectra showed that in the voltage range 450–550 V, ionized particles with a mass number of 190–200, close to the molar mass of the compound Ba0.2Sr0.8TiO3±x are registered in the gas phase. The grown polycrystalline films are chemically similar to the composition of the target Ba0.8Sr0.2TiO3. With an increase in the bias voltage, ions with lower masses are recorded in the film-forming medium together with Ba0.8Sr0.2TiO3±x, and the concentration of the number of ions with low mass increases with increasing bias voltage, and the formed polycrystalline films, along with Ba0.8Sr0.2TiO3, contain compounds BaTiO3, SrTiO3, BaO and SrO. The dynamics of the formation of a film-forming medium during the deposition of Ba0.8Sr0.2TiO3 films is shown. The parameters of the high-frequency discharge, conditions and modes necessary for reproducible growth of BaxSr1-xTiO3 films are established.Рассмотрен механизм образования пленкообразующей среды при высокочастотном напылении пленок титаната бария стронция (BaxSr1-xTiO3) в кислороде. Исследование пленкообразующей среды методом масс-спектрометрии показало, что при распылении BaxSr1-xTiO3 в кислородной плазме энергия ионов кислорода 10-17—10-16 Дж достаточна для перевода многоатомных молекул с поверхности в газовую фазу и недостаточна для разрушения молекулы на составные компоненты как в веществе мишени, так и в газовой фазе. Анализ масс-спектров показал, что в диапазоне напряжений 450—550 В, в газовой фазе регистрируются ионизированные частицы с массовым числом 190—200, близкие к молярной массе соединения Ва0,8Sr0,2TiO3±х. Выращенные поликристаллические пленки по химическому составу аналогичны составу мишени Ва0,8Sr0,2TiO3. При увеличении напряжении смещения в пленкообразующей среде вместе с Ва0,8Sr0,2TiO3±х регистрируются ионы с более низкими массами, причем концентрация числа ионов с низкой массой увеличивается с возрастанием напряжения смещения, а сформированные поликристаллические пленки, наряду с Ва0,8Sr0,2TiO3, содержат соединения ВаTiO3, SrTiO3, ВаO и SrO. Показана динамика образования пленкообразующей среды при напылении пленок Ba0,8Sr0,2TiO3. Установлены параметры высокочастотного разряда, условия и режимы, необходимые для воспроизводимого выращивания пленок BaxSr1-xTiO3

Density Matrix Kinetic Equation Describing a Passage of Fast Atomic Systems Through Matter

The quantum-mechanical consideration of a passage of fast dimesoatoms through matter is given. A set of quantum-kinetic equations for the density matrix elements describing their internal state evolution is derived. It is shown that probabilistic description of internal dynamics of hydrogen-like atoms is impossible even at sufficiently low energies because of the ``accidental'' degeneracy of their energy levels.Comment: 12 pages, LATEX, submitted to J. Phys.

Mobile synbiotope microbiocenosis against pathogens

Based on own results, conception of mobile synbiotope microcenosis against pathogens as well as new antimicrobial strategies connected to conception are proposed. Synbiotope mobility is determined by the presence (in varying combinations] of cofunctioning antimicrobial ways which can be realized with participation of highly molecular mass metabolites of probiotic bacterial cultures. Thus, probiotic enzymatic systems (proteinases, EPS-depolymerases and/ or oxidoreductases] reveal cofunctioning with probiotic lectins. New antipathogen strategies use technological advantages of choice and selection of symbiotic strains and consortia producing synergistical enzyme-lectin-glycoconjugate systems against microfungal and Gram-positive pathogens. Additional strategies involve construction of synbiotic systems supporting probiotic compartment of biotope