On the developing of the mathematical model of all-wheel drive vehicle

The mathematical model of all-wheel-drive vehicle is proposed, which makes it possible to investigate the economic indicators of the vehicle’s movement for choosing the optimal type of central differential in a given range of road conditions

Modeling the multiphase flows in deformable porous media

This work proposes the nonlinear model for the flow of mixture of compressible liquids in a porous medium with consideration of finite deformations and thermal effects. Development of this model is based on the method of thermodynamically consistent systems of conservation laws. Numerical analysis of the model is based on the WENO-Runge-Kutta method of the high accuracy. The model is developed to solve the problems arising when studying the different-scale fluid dynamic processes. Evolution of the wave fields in inhomogeneous saturated porous media is considered

Innovative Territorial Clusters

The emergence of new centers of economic growth, which will unite scientific, educational and industrial potentials, and would also enhance the competitiveness of enterprises and the region organizations as research and education in the future will have a multiplier effect on the shaping of economic processes, which helps to attract investment. This trend of building new centers, implementing efficient activities will affect the transition of Russian economy to innovative type of development. The relevance of the implementation of innovative type of economy development on the basis of innovative territorial clusters is dictated by the need to ensure balanced and sustainable development of national economic systems through the unwinding of selected innovative areas of the state. Such territories are actively formed at the present time can become innovative territorial clusters. These formations of the modern world, they had a different policy and the implementation of its activities, to present the latest shapes and signs of competitiveness are a kind of “springboard” in the economy of the future. The competitiveness of the economy of the region, the state, the region now depends not only on technical achievements, inventions, but also on organizational changes that contribute to their business results and marketing innovation in the field of promotion and implementation of regional clusters. Keywords: cluster, innovation, region, competitiveness, cluster policy, efficiency JEL Classifications: F63, O10, O22, O29, L5

Innovation Performance and its Influence on Enterprise Economic Efficiency in the Market

Innovations are means of competition. A success in how an enterprise uses the innovation processes directly depends on its competitive ability and profitability level. Innovation performance is a level of using innovations. Under a competitive struggle in the market, progress in science and technology holds a specific place. Innovations define the economic success of an organization. It is not simple to have only a desire to increase the performance results, it is necessary to have a factor for organization survival, competitive ability and economic growth prospects preservation throughout the modern innovation world. The experience of the most developed countries shows that the one, whose activity is mainly based on using the innovation processes, becomes a winner in a fight for his client and the main purpose of organizations' strategic plan is to develop either a new product or services. The innovation performance of an enterprise can become one of the main factors for organizing the competitive strategic prospects of an enterprise, preserving and increasing its positions in the market. The topicality of the theme is very high, as introducing innovations in the activity of an enterprise and its competitive ability level in the market depend on the level of an organization's innovation performance. Keywords: innovation, innovation performance JEL Classifications: O14, O31, O32, O3

Creation of Clusters of Small Enterprises of the Region

Under the conditions of continuous economic progress, modernization of production, development of the world market there is the need for increasing competitiveness of small enterprises of the country and regions. This dynamics of changes demands new approaches to socio-economic development of the Russian industries. Each region of the country can be competitive not only in the domestic market, but also and in the world if it uses the reserve which has necessary economic, intellectual and financial potential. Thus, one of the ways of the effective realization of economic potential and stimulation of economic growth is the creation of competitive regional clusters, both large-scale organizations and small enterprises. Now the given problem is one of essential for the decision in the sphere of economic regional government as the analysis of world practice shows rather high efficiency of development of economies of many countries on the basis of use of cluster approach as opposed to branch that is acceptable for our country. The government of Russia also defined cluster approach as the main instrument of management of regional development. However, this approach demands detailed studying, first of all, from the point of view of adaptation of the international experience to the Russian conditions. Keywords: cluster, small enterprises, development, region, economic progress JEL Classifications: A10, C38, O1

The Social Significance of the Cluster in the Economy

Transition of the Russian Federation's policy to the innovative way of economic and social development is indispensable imperative to ensure its output to a leading position in the modern globalized world. Among the wide range of means, methods, forms, the mechanisms by which it is possible sharp acceleration of the process of formation of an innovative economy in our country, a special place belongs to the cluster approach. International scientific community is justified, and the practice of developed countries proved that the cluster approach to the structuring of the national economy and regional systems are an important source to improve production efficiency, increase its competitiveness, and increase public welfare. Questions of cluster formation and management of the development of the Russian economy in recent years, becomes the subject of numerous studies by Russian scientists - economists. Cluster policies are becoming increasingly recognized in public authorities. Moreover, there are already official documents, which examine the content and direction of the cluster policy. Keywords: society, cluster, economy, innovation, importance, competitiveness JEL Classifications: A19, O35, O3

Numerical analysis of the stress-strain state of osteotomies of the first metatarsal bone

Deviation of the first toe to the outside, interconnected with the deviation of the first metatarsal bone to the inside, occurs in 46% of patients of the older age group and is called valgus deformity of the first toe. The negative impact of this pathology on the quality of life of patients is the reason for seeking medical help, the gold standard of which is surgical correction, and the basic surgical technique is osteotomy (sawing the bone and fixing its fragments with implants) of the first metatarsal. At the same time, an ideal osteotomy should provide initial stability in the early postoperative period. However, a large number of ways to perform osteotomy, as well as the advantages and disadvantages of each of the surgical techniques, do not allow to consider one of them as the most successful. In this regard, the aim of the work was to develop and validate a biomechanical model of osteotomy of the first metatarsal bone to analyze its stability and reliability depending on the type of osteotomy, the degree of displacement of bone fragments, as well as the number of fastening screws. In this study, biomechanical modeling of the most commonly used variants of osteotomy of the first metatarsal bone of the foot in the surgical treatment of its valgus deformity was carried out. For this purpose, 10 models of osteotomies of a separate first metatarsal bone were created, which were then subjected to static loading to analyze their stress-strain state and assess their success. Successful (stable and reliable) treatment options were identified, as well as unsuccessful ones. Two of the ten options considered were unsuccessful – scarf type osteotomies with displacement of bone fragments by 2/3 of its diameter and fixed with a single screw. It was revealed that osteotomies of the chevron type showed higher stability in comparison with scarf osteotomies. As a result, we note that in this study, numerical experiments were conducted for the first time to compare the stability and strength of the most commonly used variants of osteotomies based on a single bone model. A biomechanical model of scarf osteotomy of the first metatarsal bone has been developed and validated on the basis of mechanical experiments

On the developing of the mathematical model of all-wheel drive vehicle

The mathematical model of all-wheel-drive vehicle is proposed, which makes it possible to investigate the economic indicators of the vehicle’s movement for choosing the optimal type of central differential in a given range of road conditions

Acoustic pressure contributions of a combine harvester’s thresher drum to the overall workplace noise situation

This paper analyzes the magnitude of the acoustic pressure contribution of a combine harvester’s thresher drum to the overall noise situation with the goal of providing the regulatory parameters for the workplace conditions. In the course of the current research the velocity and pressure graphics for the airflow on the parts of a rotating thresher drum as well as the sound intensity parameters by frequency spectra and sound pressure magnitudes were calculated