A model is presented for the calculation of thermoelastic stress and displacement  in semiconductor structures
due to laser processing. Developed software based on the model allows to determine the optimal parameters of laser processing with taking into account the physical and topological parameters of the structure. The model is divided into two tasks: the non-stationary heat  conduction equation is solved, and the equilibrium equations and Hooke's law. For equations solution was used the finite difference method.

Keywords: Laser processing, thermal stress, finite difference method

An original mathematical model describing different activities of actors in the vertical marketing system is presented. They are a provider, a agent, a trading enterprise are presented as a controlling subjects. The model is based on the game-theoretical and hierarchical approach. An equilibrium of Germeyer G1 game in terms of sustainable development is established. The method of impulsion is used as a method of hierarchical control to solve this model. The main system operation laws based on numerical experiments are presented.

Keywords: game theory, hierarchical, three-level control system, method of impulsion

Questions of the classification soil and groundwater conditions  were considered as an important factor of a selection of  types and designs of machines for clearing forest areas from a tree and scrub vegetation. Taking into account the executed analysis the classification of the conditions was proposed the application of machines for clearing the forest area.

Keywords: Tree and scrub vegetation, soil and groundwater conditions, clearing the forest area

The article presents a method of accounting land limits (charges) during the cadastral valuation of agricultural land. This allows us to differentiate the cadastral value , depending of presence of protection zone,  water protection zone and on other zones on the  lands. Cadastral cost of agricultural land on the example of Leningrad region counted. Determination of cadastral cost on the basic presented coefficients will reduce the land tax on the territory which include restricted mode zones of use. It will increase the objectivity of cadastral evaluation.

Keywords: cadastral evaluation of land, agricultural land, land limits, analytic hierarchy process of T.Saaty

The article discusses issues related to the development of the optimal structure of neural networks. One of the major problems in the synthesis neural conrollers is ensuring optimal number of neurons and connections between layers  in the network. Necessary to achieve a compromise between the representational network capabilities, and memory that will be required to store it. The article presents a number of heuristics, allowing to reach such a compromise by limiting the number of connections for each neuron.
This is done through the introduction of two characteristics for the neuron: the radius of the coverage and density of connections. Coverage radius determines the number of neurons that could potentially have a connection to this neuron, and the density of the compound gives the actual number of such compounds. Altogether, these characteristics determine the amount of synaptic connections, which can have a neuron. The article presents the heuristics that allow to define these characteristics depending on the network structure.  

Keywords: neural network, neural controller, associative memory, machine learning, optimization

A new classification  of  criterions methods of the setting-up roller for grinding spherical ends. Structural analysis of the locating charts and the search for new technological schemes and possible implementation on the basis of morphological method using the proposed criteria. Identified basic directions of  evolution of the technology of grinding spherical ends roller.

Keywords: bearing, taper roller, spherical end, base, locating, locating point, locating chart, setting-up.

Using the expression for the dynamic model calculations were performed, identified analytical and graphical relationship between resistance, systemic and the number of enterprises - participants cluster associations to characterize the sustainability of transport and logistics cluster to fluctuations in external traffic

Keywords: transport and logistics cluster, the dynamic model of stability

The article presents a mathematical model of deformation of thin-walled conical shells, considering orthotropic material, geometric nonlinearity and transverse shear. Showing geometric relationships, physical relationships, the functional of total energy of deformation and boundary conditions.

Keywords: conical shell, tapered panel, mathematical model, geometric nonlinearity, orthotropic, lateral shifts

Use nonconventional and renewables has important economic value for energy saving. Lamellar recuperators are applied to a reuse of heat of departing air in system of ventilation of buildings. Its functional mathematical model is developed for increase of energy efficiency and optimization of parameters of work of a lamellar recuperator. On the basis of mathematical model the criterion of optimization is defined and optimum modes of functioning of a recuperator of ventilating air are established. As a result of researches it is established that the heating of external air is necessary for increase of overall performance of a recuperator before an entrance to a recuperator. For the solution of this task it is offered to use soil the heat exchanger.

Keywords: mathematical model, lamellar recuperator, nonconventional power sources, optimization, energy saving

The main issues of competitiveness, assess the quality of services, pricing strategy, especially sales service, new services, cost accounting and auditing in the tourist and recreation industry

Keywords: competitiveness, quality of services, audit, pricing strategy, marketing, tourist and recreational industry.

The main methods of Platycladus orientalis seed propagation are studied. For Platycladus orientalis industrial cultivation the following technologies of reproduction are recommended: For off-sort samples – seed propagation after stratification (25-30 days); For sorts and decorative forms:
1.Vegetative propagation using IAA.
2. Micropropagation of Platycladus orientalis in vitro by means of adventitious shoots induction on the MS medium adding 0,2 – 0,5 mg/l BAP. There are derived well rooted microshoots on the medium with IAA in concentration 5 mg/l.

Keywords: green building, Platycladus orientalis, technologies of reproduction, clonal micropropagation.

A comparison of wheeled and tracked vehicles propulsion forest. It is shown that the bulk of overseas logging operations, the construction of infrastructure facilities, the primary transport of forest produce machines with paddle wheels. It is proved that under natural conditions of production are tracked significant potential movers. Given the requirements of prospective car on the engine power, weight, ground pressure, speed and carrying capacity.

Keywords: crawler gear, wheel propulsion, forest equipment, potential.

It is shown that the competitive advantages of the Republic of Karelia in environmental management are largely determined by natural resources, the state of transport and energy infrastructure, geographical location and can be realized by incorporating state programs initiated by the republican authorities scale innovative programs to implement the " Pudozh megaproject ", " Karelian recreational cluster "and programs for the development of transport and energy infrastructure.

Keywords: Competitive advantages , environmental management , region, resource-based theory .

This paper presents mathematic model of optimization of expenses of stock-piling of timber and logging timber from felling areas to timber consumers by transport networks. This model optimize technological processes which appears during the process of stock-piling of timber and logging timber. 

Keywords: log truck, rail transportation in timber processing complex.

The main laws valid for a series of traffic jams relating to a series of intersections are considered. Their usage facilitates optimization of simulated models of a traffic network section. The problems of traffic jams emergence on the I thoroughfare of Volgograd are investigated with the help of simulated modeling.

Keywords: simulated modeling, series of traffic jams, traffic flows, genetic algorithm, traffic capacity