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

Acoustic system parameters were selected and calculated: wave modes used when controlling, wave entry and frequency angles according to kind of decay process and ultrasonic attenuation. Control procedure was developed

Keywords: ultrozvuk, frequency, attenuation process, technology, acoustic system

According to the signal theory vocal speech presents a non-stationary random process due to time variation of its main characteristics. A special emotional impact is gained during ensemble and choir performances. The article provides the correlation analysis results and the autocorrelation function of ensemble singing calculated, taking into account the non-stationary nature of acoustic signals. The studies have shown that there is a certain visual resemblance between correlation portraits of a non-professional student ensemble and a non-professional solo singer. At the same time the correlation portrait of student and professional co-performance tends to a professional singer correlation portrait. This helps to make a quantitative assessment of an ensemble’s professionalism which, alongside with a vocal teacher’s subjective assessment, can provide an objective view on singers’ voices condition to optimize the academic voice training process in an ensemble, which is important when using this voice assessing method in music schools, colleges and universities.

Keywords: Vocal speech, acoustic signal, ensemble singing, choir performance, non-stationary random process, autocorrelation function, quantitative assessment