Arduino Uno и Raspberry Pi 3: от схемотехники к интернету вещей
The workshop is intended for the acquisition of practical skills of computer simulation and study of the functional components and devices of microcomputers using circuit simulation program "Electronic Workbench" students of higher and secondary educational institutions, students of architecture, organization, circuitry and computer modeling of digital components and devices of the computer.
The article is devoted to the development of an intelligent system, based on the Arduino hardware and software platform. It is an element of the Smart House, which at the core lays the concept of IoT (Internet of Things). The device is designed for continuous automated monitoring condition of the aquarium, with the ability to remotely inform his owner. Monitoring and support of the life processes is carried by parameters such as feed supply, control of the temperature set, control of illumination. Versatility and modularity of the platform makes it possible to use it for any type of aquarium with the ability to expand functionality by adding the necessary sensors or metrics. The basic stages of designing of the device are described, its characteristics and the results of its work are given.
Within the framework of the digital economy development in Russia, one of important areas is «digital logistics/ supply chain». In the market of freight and passenger traffic the use of digital technologies gives a competitive advantage, therefore their implementation is becoming inevitable for the entire logistics industry. This article considers trends, advantages, prospects and barriers to the implementation of digital technologies in the Russian Federation; the main types of these technologies and their influence on logistics business processes efficiency. A scheme for digital technologies (Big Data, IoT (Internet of Things), Blockchain, Cloud Services, 3D Printing) using in the supply chain are also presented. This paper provides the analysis of digital technologies use impact and a methodology for assessing the relationship with the components of the model of total logistics costs (TLC) in supply chains. It should be noted that proposed TLC model does not only include logistics operations costs, but also the costs associated with complete customer satisfaction.The use of digital technologies in logistics makes it possible to increase efficiency,precision and speed of logistics operations, however it requires significant financial investments, personnel training, accounting long-term physical movement over long distances, problems of customs clearance and terminal handling of goods.
A method based on the spectral analysis of thermowave oscillations formed under the effect of radiation of lasers operated in a periodic pulsed mode is developed for investigating the state of the interface of multilayered systems. The method is based on high sensitivity of the shape of the oscillating component of the pyrometric signal to adhesion characteristics of the phase interface. The shape of the signal is quantitatively estimated using the correlation coefficient (for a film–interface system) and the transfer function (for multilayered specimens).
Let G be a semisimple algebraic group whose decomposition into the product of simple components does not contain simple groups of type A, and P⊆G be a parabolic subgroup. Extending the results of Popov , we enumerate all triples (G, P, n) such that (a) there exists an open G-orbit on the multiple flag variety G/P × G/P × . . . × G/P (n factors), (b) the number of G-orbits on the multiple flag variety is finite.
I give the explicit formula for the (set-theoretical) system of Resultants of m+1 homogeneous polynomials in n+1 variables