List of publications on a keyword: «linear»

It is proved in article, that from point of numbers and new scalar work of diagonal of arbitrary rhombus it is possible to consider identical as a result of the orthogonal transformation, when lengths of vectors are measured in the same units of measuring as on sides of the rhombus. In the second part of article some class of functions is resulted: the values of the functions restore on the known positive values of the transform of Laplace. In the third part of article the examples are resulted, when a function of points of complex plane become periodic with the arbitrary period (from point of some introduction of two systems of co-ordinates).

The paper provides a regression analysis of the dependence of innovation indicators on the current state of the main economic characteristics: the current state of information and communication technologies, wages of industry workers, depreciation of fixed assets, costs of organizations for innovation, labor productivity index, internal costs of organizations for research and development, the size of investments in fixed assets of the Russian Federation.

Periodicity of wide class of functions as a result of reflection of even and arbitrary regular functions is proved. By consideration of new scalar work in space of linear shell of initial n vectors the equivalence of values of two different scalar productions is proved. The example of linear transformation is considered on plane for the symmetric case, resulting in possibility to make to use the orthogonal sides of rhombus at projection on the plane of its parties.

In the article we consider a new scalar production in the linear subspace of n vectors (by analogy with the geometry of Lobachevsky, all two vectors are orthogonal as projections of the third vector). With help of the production we obtain a new form of linear projection of the additional vector to the subspace. The rapid algorithm of finding of optimum linear estimation of additional vector on the known vectors ensues from the projection.

This article focuses on the equality of the estimated late losses resulting from the application of the chain ladder model to the estimates obtained on the basis of the incremental development triangle by cross-parameterizing the rated increments of losses with Poisson distributions using the generalized linear model. In this article, the formulas of the chain ladder model are derived by solving the problem of cross parameterization of rated increments of losses. Smaller accounting groups than the risk, along which the development triangle is formed, make conclusions about the possible bases for the sharing of reserves. This issue may be relevant for the further calculation of actuarial premiums.

The article presents brief information about the concept of the language R, its main features for statistical analysis. Some methods of data analysis with R system are considered: one-dimensional statistical characteristics of the sample, the graphical method and the analytical method, the dispersion method, the correlation analysis and linear regression. Methods for estimating the correspondence between the distribution of experimental data to the standard law are also given.

The method of preparation of transmission lines, oil and gas pipelines and roads with preparation of wood biomass removed from linear objects is considered.

The complex of objects of intellectual property in the field of protection of linear objects and prevention of forest fires is shown by cutting trees and bushes with continuous movement of the machine.

A brief review of the research aimed at improving technologies and equipment for the removal of trees and bushes on felling and line facilities is carried out. Particular attention is paid to the machines for performing these operations with the continuous movement of the machine.

A brief review of the research aimed at improving the technology and equipment for removal of stumps on felling and linear objects is performed. Given perspective technical solutions.

The modern tendencies of creation of technics for clearing of cuttings down and linear objects are considered. Technical solutions for grinding trees, bushes and stumps using mulchers have been proposed.

Considered a range of technical requirements for the creation of machines for cutting of trees and bushes in a continuous motion machine in the protection of linear objects and creating firebreaks.

The conception of synergic approach presented in the article concerns building curriculums for foreign language. The competency format of the Federal State Educational Standard is a ground for structuring curriculums on the following principles: interdisciplinary, homeostatic, hierarchical, open, complimentary, nonlinear and activity and communication unity. It enables the education system to prepare a perspective specialist for an efficient professional performance.

An assessment of devices for clearing of trees and shrubs runs power lines, care for ordinary forest plantations on cuttings, removal of woody undergrowth on oil and gas pipelines, clearing zakustarennyh areas in agriculture.

Considered a range of studies carried out in Petrozavodsk university, is provided in the beginning of the study brush cutter, and then devices for continuous cutting of trees and bushes on the linear objects.

The research offers a variant of closed transportation task of linear programming options choice, which optimal solution is defined by a standard method of potentials involving small quantity of steps.

The following issue shows the role obfuscation system of methods of programs as one of security features of copyright in the development area both the software, and some types of hardware. Much attention ispaid to approach to program semantics concealment based on reduction of line items quantity of direct task and an exception of direct use of constants in the program while joint minimization of the size of the obviously given part of a pool and code complexity forming the rest of it. Regular set of task is also given in the form of optimization model.

The article deals withpseudo-occasional numbers generator value impact on result obtaining in the algorithm of random optimization. Much attention is given to insolvency of the standard pseudorandom number generator Microsoft Office in case of the solution of some random optimization task classes; the authors also offer a variant of solution for revealed problem.

Calculation of the exact parameters of complex curves is required for many engineering problems, but to execute it in modern geometry is very difficult. On the basis of the previously developed method of straight voluntary linear transformations and symmetries theory a new solution for the four groups was obtained. However, incorrect estimates were obtained for certain transformations. Applying the methods of geometric modeling, a new feature of linear transformations was revealed.

The article deals with the problems associated with the use of regression. Much attention is given to the difficulties associated with the regression analysis. Report assessment of the conditions of applicability of the method of least squares; wrong choice of alternative methods in violation of the conditions of applicability of the method of least squares; the use of regression analysis without in-depth knowledge about the subject.

Proposed cleaning machines for linear objects from trees and shrubs, as well as creating firebreaks.

The necessity of creating a specialized forest machines for cleaning of linear objects from trees and shrubs, including to improve their fire safety.

This article analyzes the modern numerical methods for solving linear algebraic equation system. They focus on the study of the field of applicability of the methods considered. Modern numerical methods often come down and solve linear algebraic equation system, so the question remains relevant today.