Повышение равномерности нанесения тонких пленок в вакууме
An actuating device complex motion mathematical model of automated vacuum processing equipment is developed. The model allows for controlling evenness of the thin filming aimed at improving its evenness. Manufacturing advantages of the coordinate actuating devices compared to planetary design are given, as well as main ways of controlling and improving vacuum thin film deposition evenness.
This paper explores the concept of of 'literariness' (Roman Jakobson's term) on the material of Leskov's popular scetch Lady Makbet of Mtsensk District. Literariness in Leskov’s „Lady Macbeth” consists of a certain set of literary devices, including: using intertexts from Shakespeare and folklore; cohesive motifs (red and gold colors, the image of river, the black viper), the narrative details (poisoned tea), an overarching liturgical subtext as a symbol (the feast of the Mother of God’s Entrance into the Temple), and a creature appearing as a mystic symbol (the cat). All these marked elements are not merely operative in the texture of the work but also incorporated in a way that makes them nonobvious. Each element has worked for the overall goal — of making the main character more signifcant, or revealing the true meaning of the events for the story as a whole. As a result of this dual activity of, frst, activating and, then, hiding literary elements, the work itself exemplifes true literariness, in Roman Jakobson’s sense.
A reliability index of various electronics is determined by the experimental data of tests for different values of parameters of the equipment. The received data are collected in bulky tables and references. This paper presents modern numerical approach, allowing to compile the experimental data on changes of reliability index not in the form of tables but as a function of the operating parameters of the devices. The methodology is based on the method of network operator for the design of the optimal structure of function and selection of its parameters. The network operator method belongs to a class of methods of symbolic regression and provides an evolutionary search for the best compositions of mathematical expressions on the space of elementary structures. The method allows you to automatically receive the required description of the functional dependencies. The effectiveness of the method is demonstrated by the example of searching the law, which describes the change in the failure rate depending on three parameters that characterize its constructive and technological performance and operating conditions.
In most educational institutions studies of such courses as "Electronic Engineering" , "Electronics", "Fundamentals of electronic circuits", "Fundamentals of Radio Electronics and Communications", "General Communication Theory", etc. , provision laboratory workshops to allow students to gain a deeper understanding of the discipline. However, even a well- equipped laboratory cannot cover the entire range of discipline that leads to gaps in practical training. In such cases it recommended to include various computer modeling system to the educational process which will help to visualize physical processes in the electronic circuits.
Studies on the effects of high-temperature pulsed plasma obtained at the "plasma focus" (PF) on the titanium target, a spray deposited on the test samples fotostekla. The results obtained in the study samples irradiated in a scanning electron microscope and spectrophotometer. A method for allowing a uniform metal film on the glass.
The IEEE Russia North West Section, IEEE Russia Section, Saint Petersburg Electrotechnical University “LETI”, National Research University of Electronic Technology "MIET", and Glyndwr University, UK are pleased to present the Proceedings of the 2019 IEEE Conference of Russian Young Researchers in Electrical and Electronic Engineering (2019 ElConRus) held in St. Petersburg and Moscow, Russia on January 28 - 30, 2019. This conference is proudly hosted by two universities - Saint Petersburg Electrotechnical University “LETI” and the National Research University of Electronic Technology "MIET". The Organising Committee believes and trusts that we have been true to the spirit of collegiality that members of IEEE value whilst also maintaining a high standard as we reviewed papers, provided feedback and now present a strong body of published work in this collection of proceedings. The themes for this year's conference were chosen as a means of bringing together the many orientations of electrical and electronic engineering research and teaching, and providing a basis for discussion of issues arising across the young engineering community in relation to electrical and electronic engineering. The aim in these proceedings has been to present high quality work in an accessible medium, for use in the teaching and further research of all people associated with electrical and electronic engineering studies. To achieve this aim, all abstracts were blind reviewed, and full papers submitted for publication in this journal of proceedings were subjected to a rigorous reviewing process.
This volume presents new results in the study and optimization of information transmission models in telecommunication networks using different approaches, mainly based on theiries of queueing systems and queueing networks .
The paper provides a number of proposed draft operational guidelines for technology measurement and includes a number of tentative technology definitions to be used for statistical purposes, principles for identification and classification of potentially growing technology areas, suggestions on the survey strategies and indicators. These are the key components of an internationally harmonized framework for collecting and interpreting technology data that would need to be further developed through a broader consultation process. A summary of definitions of technology already available in OECD manuals and the stocktaking results are provided in the Annex section.