IN THE ISSUES OF MATHEMATICAL MODELLING LOGISTICS PROCESSES

Mathematical modelling came to logistics from economics. Economic models have been used for quite some time, but the results obtained force us to develop new branches of the theory. The solution of the characteristic equation is the basis of these algorithms as a rule. The classical solution of the characteristic equation from geometry is used. The solution is based on two postulates: the type of the characteristic equation is not changed and the solution is obtained in an orthogonal basis. The transformation matrix change the form of the characteristic equation is proved. The symmetries of space vary it. Solutions for complex non-linear processes should be considered in a non-orthogonal basis. This basis is primary. The orthogonal basis appears from it or in a particular case

The Immunity of Non-Coherent and Coherent Reception of a Signal DQPSK in the Conditions of Influence of PSK, a Harmonic Interference or Gaussian Noise

Методом индикаторов решений о переданных элементах получены зависимости средних вероятностей правильного приема в оптимальном некогерентном приемно-решающем устройстве символа и двоичного элемента простого незамирающего сигнала с двукратной фазоразностной манипуляцией при воздействии фазоманипулированной или гармонической помех от отношения сигнал-помеха. Проведен анализ указанных зависимостей и выполнено сравнение помехоустойчивости оптимального некогерентного и когерентного приемно- решающих устройств сигналов с двукратной фазоразностной манипуляцией при воздействии фазоманипулированной, гармонической и гауссовской помехBy the method of making the indicators of output elements obtained according to the average probability of correct reception in optimum incoherent receiving-solver symbol and binary element no fading DQPSK signal when exposed to PSK or harmonic interference from the signal-to-noise ratio. The analysis of these dependencies and comparison of optimal noise immunity of incoherent and coherent of receivers with DQPSK signal with PSK, a harmonic interference and Gaussian nois

Information Technology and Pragmatic Analysis

Similarity method has been in science for several centuries. The basis of the study is closely connected with mathematical linguistics. This approach has allowed obtaining new results in the analytical geometry, which, in turn, is used in different applications in information technology. The results are described briefly. Binary relations in linguistics and geometry are compared with the position of system analysis. The modified hypothesis of space as a binary structure is put forward on the basis of singular linear transformations. The hypothesis of the human sensory system is given shortly. Architecture computing appliance for solving this class of problems is proposed. The modified method is also applied in pattern recognition. The presence of symmetry in natural languages is shown briefly

Solutions to the characteristic equation for industrial robot’s elliptic trajectories

Linearne nezavisne neprojektivne transformacije rabe se za različite vrste aplikacija. Predlaže se direktna analitička metoda za rješenje linearne transformacije karakteristične jednadžbe za industrijskog robota. Teorijska osnova metode proizlazi iz klasičnih rješenja sa simetrijama, ali metoda ne sadržava formule s korijenima. Automorfizmi se dijele na teoriju skupova i opću algebru. To nam omogućuje učinkovitiju primjenu te metode za druge tehničke zadatke.Linear independent non-projective transformations are used for different types of applications. Direct analytical method for solving the linear transformation of the characteristic equation for industrial robot is proposed. The theoretical basis of the method derives from the classical solutions with symmetries, but the method does not contain formulas with radicals. Automorphisms are divided into set theory and universal algebra. This feature allows us to use this method more efficiently for other engineering tasks

Semiotic analysis of mechanical engineering drawings

Subject of investigation: mechanical engineering drawings. Purpose of the work: development of a method of analysis of a mechanical engineering drawing for discriminating errors in the construction and in the accuracy of the sense as well as for selecting a possible strategy of correction of the found errors. A method is developed for the automatic analysis of a mechanical engineering drawing which makes it possible to extend the capabilities of a computer system for the search and correction of various errors. The results of the work include the development of methods for the information processing and development of a program package of a graphics editor for assigning sketches and programs for the semantic analysis of the mechanical engineering drawing. The results are used in the production activities (some enterprises of Udmurtia) and in the training processAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio