In the article a double-gap cavity with anti-phase excitation that has wide application in designs of floating-drift klystrons is considered. One of the ways of reduction of time during machine design of klystron’s cavity is using of the simple analytical expression, allowing to determine the main klystron electrodynamic parameters with a sufficient accuracy for practice. In the article we presented the results of physical and mathematical modeling of the double-gap cavity, the corrected mathematical models were introduced that can be utilized in programs of a prompt optimization of klystron's type devices. The technique of creation of approximate mathematical model in this case was reduced to definition of basic analytical function, and the subsequent approximation between experimental and calculated data by means of a method of planned experiment. In presented work the analysis of adequacy was carry out. Analysis revealed inaccuracy of a resonance frequency of an anti-phase type in chosen ranges of change of influencing factors doesn’t exceed 1%, characteristic impedance- 5%. The received analytical ratios allow carrying out quickly calculation of parameters of the cavity, without labor-consuming and expensive experiments and calculations.

Keywords: double-gap cavity, electrodynamic parameters, mathematical simulation, resonance frequency, characteristic impedance, method of planned experiment

In this work we have investigated the structure of individual single-walled and multi-walled carbon nanotubes by high-resolution electron microscopy and electron diffraction. To grow carbon nanotubes we used a catalytic chemical vapor deposition method. It was shown, that this synthesis protocol gave in general single-walled and double-walled carbon nanotubes with a high level of crystallinity. The diameters of the nanotubes were in the range 1.5 - 7 nm. We also observed that there was a certain level of amorphous carbon deposited on the nanotube surface during the growth. In this work we also present the structure analysis of the double-walled carbon nanotube by means of electron diffraction. We show that the structural date derived from electron microscopy and electron diffraction agree within the experimental error.

Keywords: Carbon nanotubes, electron diffraction, electron microscopy

The article considers the essence and specifics of state regulation of local markets in the region. With respect to implementing the principles of sustainable development highlights the key tasks of state regulation in the process of formation and development of local markets, determine the forms and methods of state regulation.

Keywords: region; regional economy; sustainable development; local markets; trends

The atricle considers the problem of finding the best carrier. It describes by the expert method of solving the problem, as well as an algorithm for selecting a carrier. Describes a software module implemented with the involvement of technology ActiveX, which greatly simplifies the process and reduces the development time of projects. The proposed application allows you to define a list of the best carriers, ranked by rating according to the user's request.

Keywords: Carrier selection, expert method, weighting coefficient, rank, user application

It’s shown, that world energetics development policy is based on the problem solving of economics’ supplying with energy, and also on solving ecological problems and ecological risks prevention. Public preparation for proper assessment of nuclear energy policy is necessary. Universities’ integration with Rosatom’s organizations assists with it, when scientists, teachers, graduate students and students are involved in the process of safe nuclear energy equipment’s creation and inform the general public about the process and results of their work

Keywords: Nuclear energy, public preparation, policy and strategy, ecology, economics

Estimates by the Finnish experts of prospects of introduction of a visa-free regime of Russia with Finland are considered. Estimates of its influence on business life of Finland are given. It is shown that 60% of respondents expect obtaining benefit by the companies from introduction of a visa-free regime, about 30% don't expect any consequences, and only 8% assume emergence of problems.

Keywords: visa-free mode, business life, Russia, Finland.

We consider the improved design of the centrifugal oil filter with constant control of its cleaning power, allowing to change the technology system maintenance lubrication systems by separating operations replace crankcase oil filter and clean the rotor.

Keywords: centrifugal oil filter, technology maintenance, lubrication system

The severity of the issue of migration to foreign countries. Considered the Finnish experience to analyze, control and prevention of problems associated with illegal immigration.

Keywords: analysis, monitoring, migration, illegal migration

Reviews the basic content of the service for military purposes, as a separate type of services aimed at ensuring the military security of the state and playing a considerable role in both the military and civilian sectors of the economy. Based on the analysis of normative-legal documents of the Federal level proposed a definition of the services of military purpose. Classification of defense articles, defense services rendered under the state defense order in accordance with the modern paradigm of marketing services. During the study concluded that the set of services of military purpose has all the characteristics of services, which will continue to develop organizational and economic mechanisms of maintenance of innovative development of services in the field of military security.

Keywords: services for military purposes, the classification of military services, military security, organizational and economic mechanisms for the development of innovative services for military purposes

To evaluate the effectiveness of remediation of soils contaminated with petroleum or petroleum products, it is advisable to use the method for determining the integral indicator of biological condition (IPBS) of the soil, calculated on the most informative biological indicators. If, before reclaiming the difference between the IPBS contaminated and uncontaminated (background) soil is less than 10%, it is advisable not to carry out remediation. If the value of IPBS re-cultivated soil and uncontaminated soil IPBS value differ by less than 10%, then reclamation carried out efficiently.

Keywords: pollution, soil, oil, oil products, remediation soil biological properties of the soil, the effectiveness of remediation

The paper describes the principles of the use of audiovisual stimulation for the treatment of hypertension is shown. Proposed to increase the effectiveness of therapy to use feedback on the state of the patient , which controls the frequency of audio-visual stimuli , depending on the magnitude of blood pressure and the vegetation index.

Keywords: hypertension, sensorineural therapy , feedback, vegetative index , blood pressure, pulse audio-visual stimuli

We consider the technical systems at the operational stage of the process and study their possible development. The generalized law of the development of technical systems as a function of its components can form the main factors influencing the evolution of the technical system and the process of their modernization.

Keywords: the evolution of the network, structure, system, process, modification, chains, model development, dependence

A method of expanding the bandwidth and improve the performance of the differential voltage divider – attenuator (AT), which have parasitic capacitance on the outputs C01, C02. Wide range of transmission of the AT provided by introducing a compensation circuit C01, C02, which is achieving data quality indicators. Simulation results of desired are shown.

Keywords: a resistive voltage divider, differential attenuator, the parasitic сapacitance load, speed, upper frequency limit, analog-to-digital converters.

In article the description of models of adaptive management outlining the content electronic courses. Model based on the analysis of factor run content element and the factor of time interacting with the content element CEMA (classifiers events - management analyzer) for calculating an objective indicator of course studying result of user to send a learning management system (LMS). A model of the DCG (dynamic content generation) to localize errors in the develop electronic courses and to the human factor in learning process. Proposed criteria and shown one model implementation AMLM (adaptive management e-learning materials). Results of the study found use in educational institutions and commercial enterprises involved in the introduction of new technologies and improve efficiency in e-learning. Organizations interested in the development of services provided by e-learning and stimulating economic benefits will find helpful many aspects of this work for planning strategies for education and training of personnel companies-customers, students and the public. 

Keywords: education, e-learning, Learning Management System, electronic learning course, models of adaptive management outlining of content

The article gives a critical analysis of the national-state ecological policy in conditions of modern Russia; tested contradictions in nature-economic sphere of southern regions, due to imperfection of the mechanism for implementation of ecological policy and demonstrates the directions and measures of optimization of ecological policy in the regions of the South of Russia taking into account nature-economic specifics.

Keywords: ecological policy, nature-economic sphere, regions of Southern Russia, the contradictions in the nature use