Circuit features of the electronics module for avalanche photodiode signal read-out, created on a basis of the specialized analog IC, are considered. Measurement re-sults of characteristics and noise depending on signal source capacity are given.

Keywords: avalanche photo diode, readout electronic, charge sensitive amplifier, shaper, electronics module

  From September 17 to September 20 at the Southern federal university the II All-Russia forum «A science and the person in 21 centuries» took place. It united three scientific actions: Scientific conference «Session of Scientific Council of the Russian Academy of Sciences on acoustics and the XXV session of Russian joint stock company»; the XII All-Russia scientific and technical conference with the international participation "Medical information systems" MIS-2012; the II All-Russia school seminar «Innovations and prospects of medical information systems». 

Keywords: neurobiology, neurocybernetic, brain, artificial intelligence, genetics, stress, person operator, diagnostics, therapy, hardware and software

The article is devoted to the resistance accounts composite structures. Examine the work of the external forces acting on the structure, consisting of a base in the form of hexagonal plates, rigidly connected to the base of a circular cylindrical shell.

Keywords: plate, shell, the strength, the composite structure.

Results of computer modeling intense the deformed condition of a design of road clothes of the lesovozny highway on vertical movings and tangents to tension by a method of final elements on the program PLAXIS complex are given. Deformation of constructive layers of road clothes occurs under the influence of loadings from a lesovozny road train. Results of researches of change of tangents of tension and vertical movings are given for a covering, the basis, a working layer of earth of a road bed.

Keywords: stone mastic asphalt, lesovozny road train, design of road clothes.

It is the purpose of this article the academic and social adaptation program for first-year students description and preparation and implementation process of this program in Tomsk polytechnical university presentation. Most often meeting curators problems in the program implementation process are noted and ways their solutions are proposed.

Keywords: academic and social adaptation, curator of group, program implementation, educational process, first-year student

The article is dedicated to increasing the strength properties of building structures based on bionic principles. Used research on modeling of plant materials. The different types of window openings. The recommendations to improve the strength of the restoration works for the construction of openings.

Keywords: shell, strength, mesh structure

A design of the actuator, consisting of a thin layers of silicon dioxide and aluminum is proposed. There are calculations made of the response speed and heat dissipation of the actuator. By making the best selection of layer thicknesses and optimization stages of technological process, in particular the deep selective etching of silicon, the best performance on the angle of inclination of the actuator and the speed of the device could be achived. The greater the difference between the initial temperature and the heating temperature, the stronger the beam of the actuator is lowered to the plane of the silicon plate, and, therefore, less angle of elevation above the surface of the silicon plate. It is thus possible to control the angle of the beam by selecting the appropriate heater and voltage, providing the desired temperature. The design of the micromirror device based on the proposed actuator is provided. The developed design is based on the actuator and allows for controling the tilt of the mirror in a wide range.

Keywords: silicon, termoactuator, micromechanical systems, bimorph structure, micromirrors

The article is devoted to the modeling of plant material and to increase the strength properties of building structures using bionic principles. The different kinds of structures reinforcing fabric leafy plants. Recommendations on the use of reinforcement cages during restoration work in construction.

Keywords: shell strength, plant, reinforcing fabric, building construction

There is the information of the use of belt electrostatic grain cleaner for the pre-sowing seed treatment with the purpose of their disinfection in this artcicle. The results of the treatment of seed mixture in electric field at the different variants of work conditions are presented. The specific expenditure of electric power on the percent of seed mixture disinfection was calculated.

Keywords: electric method, pre-sowing treatment, disinfection, electric field, belt electrostatic grain cleaner

    In this paper we evaluate the viability of cell suspensions with the assessment of their bioelectric properties. A method for evaluation of cell suspensions, based on the method of pulse impedance. The frequency response of the electric impedance of suspensions chondroblasts, determined by analysis of the transition function. Under the transition function is meant to test the reaction of the object exposure, for which current is used as a reaction - voltage electrodes placed in the sample suspension. After the time-frequency transform data to a PC, the transfer function is considered in the space of states that characterize the electrical properties of multicomponent biological tissues, which allows us to go to the electrical equivalents of its constituents. The measurement process, i.e. impact on the sample cell suspension is carried out within the pulse of electric current, which allows a quick assessment of the cell suspension.

Keywords: cell suspensions, electrical impedance, transfer function, state space, the functional identification

This paper addresses the testing results of steel rods with grade A500 and A600, which used as a conventional reinforcement. It was investigated the strength properties of carbon and fiberglass sheets with different number of material layers. The results are compared with the data given in the quality certificates.

Keywords: fiberglass, carbon frp sheets, laminates, sheets of carbon and fiberglass, the ultimate load ,strength

The paper reports on dynamical model of optimal biological resource exploitation with corruption. Particularly, it is allowed a fish quota increase after paid a bribe. The research has been realized with the sustainable development conception by the Pontryagin's maximum principle. A time moment, where the bribe is profitable, is considered. Fight corruption methods are presented.

Keywords: Mathematical model, optimal exploitation, corruption

The questions related to the study of various varying factors on the strength of normal sections in beams. Here's a program of research by one methodology designed to study the effect of the type and content of steel reinforcement and externally composite on the strength of normal sections that have not previously been investigated.

Keywords: Concrete, reinforced concrete, the percentage of reinforcement, carbon frp sheets, fiberglass, laminates

Structure and features of biosignals digital processing in measuring convertor of auditory evoked potentials of bioelectrical brain activity are considered at this article. Measuring convertor of auditory evoked potentials of bioelectrical brain activity is the main part of neurological diagnostics systems allowed to obtain information about the current state of the human nervous system. This paper describes the processing method of evoked potentials based on recording and processing a continuous electroencephalographic (EEG) signal. The proposed method consists of three main steps: registration of the EEG signal, segmentation of the EEG signal and the averaging of segmented fragments of the EEG signal.

Keywords: measuring convertor of biosignal, evoked potential of bioelectrical brain activity, biosignal averaging

Method of successive approximations was used to solve the problem of optimization of multispan continuous beam. Cross section of a beam was a welded I-beam.  By the variation of the width of the shelf we ensured that the maximum equivalent stress for energy theory of strength in each section is the same throughout. The solution is made numerically using complex MatLab. Bearing capacity of beams with variable stiffness along the length increased in 2 times in comparison with the beam with constant stiffness and the same mass. The proposed method can be applied to frames, taking into account the contribution of longitudinal forces in the equal stresses. Another effective way to change stiffness is to change the height of the wall of I-beam. In practice curvilinear shape of beams or shelves are not used because of complexity of manufacturing. They are replaced by the discrete form of cross section.

Keywords: multispan beams, work method, optimization, uniform strength, welded I-beam, variable stiffness