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

In modern industry, welding plays an important role for jointing materials and arc welding has been the dominant process for many years. In general, in order to produce a high-quality weld, the system should have two main functionalities. First, it should have the capacity of directing the welding torch based on the detection of the joint location and geometry, namely “seam tracking”. Second, the system should be able to adjust the welding parameters, namely “adaptive control of the welding condition". Both functionalities heavily rely on the sensor systems. The analysis of welding technological processes, adaptive control and intelligent  systems proved the  opportunity of utilization artificial neural networks in the procedure of  weld seam tracking and weld head movement control. Welding process engineering and adaptive correction with artificial neural networks  are considered in the paper both with the computer vision system based on video monitoring and laser profilоmetry.  The paper is focused on the development of a proper sensor system to facilitate the arc welding automation and neural network-based control to provide precise seam tracking and high-quality joints.   

Keywords: Adaptive control system, automatic welding, advanced welding equipment, adaptive welding technology , welding, pipeline.

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

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.

The article discusses the possible causes of pollution of Taganrog Bay of the Azov Sea with oil products for the period 2008-2013. The key factors of pollution were highlighted. Effects of navigation for cotion was evaluated by navigation intensity. Effect of wastewater was evaluated by the number of oil products which fall from municipal drains and wastewater from industrial plants. The data processing of the federal statistical reporting on the influence of the main contamination factors was carried out.

Keywords: oil products, water pollution, average annual concentrations

The article describes the main theoretical approaches and issues of transparency of customs regulation of foreign economic activity as a basis for the development of integration processes in the framework of the Customs Union and the Common Economic Space created by Russia , Belarus and Kazakhstan . Conclusion are made on the need to enhance the interaction of state bodies with the business community in assessing the effectiveness of the customs authorities, improving the system of providing public services by the customs authorities, creating a system of regulatory impact assessment of draft legal acts on foreign activity.

Keywords: Single economic space, customs services, customs regulations, customs, Customs Union

It is shown that the issue of promotion of the Russian language in Finland is highly relevant, and its implementation should be multi-layered, designed for children, pupils, students, professionals of various of specialties: businessman, forest and miners, IT professionals, spe skilled in the hospitality and tourism service, etc.

Keywords: business, promotion, Russian language, children, special-ists, students, Finland, schoolchildren.

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.

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

An analysis of papers devoted to the clustering of the economy of the Republic of Karelia. Shows the need to focus on in this case the use of the unique geographical situation of the republic and its re – resource potential ( raw material and intellectual ). Taken into account that for more active clustering economy Karelia must development of its transport and energy infrastructure.

Keywords: cluster, resource potential, transport and energy infrastructure, economy.

One of the most important problems of demographic statistics is studying of natural movement of the population. One of the major indicators of studying the natural movement is the rate of birth. In this article econometric models of linear regression of dependence of birth rate of the population from security with the medical personnel and expenses on health care, physical culture and sport were constructed.The importance of the constructed models and their parameters is checked, the forecast becomes.

Keywords: birth rate of the population, demographic policy, econometric models, multiple and pair linear regression, importance of model

This article outlines the rationale and relevance of the theme of its relevance in a real production. A brief description of the object of research , as well as the causes of the defects of the object. Later in the article describes the methods used to conduct the study , describes the applicable non-destructive and destructive methods . Describes the results obtained in the course of work , methods of mathematical processing , obtained correlations . The graphs dependencies. Next, a method developed that allows for quality control.

Keywords: granite, nondestructive testing, destructive testing, careers, ultrasound, natural frequency, correlations

In article the potential of production of biofuel on a basis the pozhnivnykh of the remains of cereal cultures is estimated. The technique of definition of amount of biofuel from the lump of agricultural production is considered. Actual data on stocks the main vegetable waste are provided. Potential of amount of conditional fuel is calculated. Data on physical and chemical properties of hydrocarbonic raw materials are provided. Problems which arise in the course of biofuel use are considered. Conclusions about an energy potential the pozhnivnykh of the remains of cereal cultures are provided.

Keywords: biomass, alternative technology, pellet, energy supply, haulm