Труды Физико-технологического института. T. 29: Квантовые компьютеры, микро- и наноэлектроника: физика, технология, диагностика и моделирование

2020 ◽  
Author(s):  
авторов Коллектив
Keyword(s):  
Information Technologies ◽  
Quantum Noise ◽  
Quantum States ◽  
Quantum Computers ◽  
Modeling And Control ◽  
Nanoelectronic Devices ◽  
Wide Range ◽  
And Control ◽  
Analytical Approaches ◽  
Element Base

Настоящий том посвящен актуальным проблемам квантовых технологий и микроэлектроники. Рассмотрены различные численные и аналитические подходы к моделированию и контролю элементной базы квантовых компьютеров и симуляторов с учетом декогерентизации и квантовых шумов. Представлены современные методы, направленные на инжиниринг различных квантовых состояний, а также их адекватный, полный и точный контроль. Представлены разработки, обеспечивающие существенное улучшение процедур томографии квантовых состояний и операций с учетом несовершенства технологий и измерений. Кроме того, рассмотрены некоторые вопросы, связанные с разработкой и моделированием приборов микроэлектроники и наноэлектроники. Для широкого круга специалистов в области квантовых информационных технологий, микро- и наноэлектроники, а также студентов и аспирантов, обучающихся по соответствующим специальностям. This volume is devoted to topical problems of quantum technologies and microelectronics. Various numerical and analytical approaches to modeling and control of the element base of quantum computers and simulators, taking into account decoherence and quantum noise, are considered. The modern methods aimed at engineering various quantum states, as well as their adequate, complete and accurate control are presented. Developments are presented that provide a significant improvement in the procedures for tomography of quantum states and operations, taking into account the imperfection of technologies and measurements. In addition, some issues related to the development and modeling of microelectronic and nanoelectronic devices are considered. Intended for a wide range of specialists in the field of quantum information technologies, as well as in the field of micro- and nanoelectronics; it can also be recommended to undergraduate and graduate students of relevant specialties.вЃ

scholarly journals MONITORING OF THE CURRENT STATUS OF STUDENTS AS A MEANS OF INCREASING THE EFFECTIVENESS OF EDUCATIONAL PROCESS

2019 ◽  
Vol 21 (2) ◽  
pp. 176-197 ◽  
Author(s):  
M. V. Alyushin ◽  
L. V. Kolobashkina
Keyword(s):  
General Education ◽  
Information Technologies ◽  
Professional Training ◽  
Educational Institution ◽  
Individual Characteristics ◽  
Educational Process ◽  
Control Measures ◽  
Current Status ◽  
Wide Range ◽  
And Control

Introduction. The increasing amount of knowledge, skills and competencies to be mastered inevitably lead to the need for more intensive classroom and independent studies. Providing favourable psychological background and ensuring active working condition of a student are the most important factors for increasing the effectiveness of the educational process (EEP). This fact has special relevance in the organisation of the educational process for students with physical disabilities, foreign students, as well as students, who receive education under individual educational trajectories.The aimof the present research was to analyse the possibilities and prospects for increasing the EEP through continuous monitoring and control of the current functional and psycho-emotional state (FPES) of students directly in the process of conducting training sessions.Methodology and research methods. The research was based on: a systematic approach to the accumulation, systematization and analysis of individual biometric information that allows a reliable assessment and forecast of changes in the current FPES of students; implementation of the principle of biofeedback (BF) and passive remote non-contact measurements of current human biological parameters that exclude any impact on it. Information technologies were used for digital signal processing in the optical and acoustic spectra of natural human radiation.Results and scientific novelty. The work substantiates an integrated approach to planning, organising and conducting training sessions, as well as control measures, which allow increasing the EEP by taking into account the individual characteristics and capabilities of students using modern digital information technologies to monitor their current FPES. It is shown that the system parameters characterising heart rate variability (HRV) can be used to assess the level of psycho-physiological adaptation of students to the learning process in general, as well as their responses to the complexity of training and control activities. Systemic parameters include the vegetative equilibrium index (VBI), the vegetative index of rhythm (VPR), the indicator of the adequacy of regulatory processes (PAID) and the stress index of regulatory systems (IN). The parameter IN is highlighted as the most informative. The possibility of using the results of the analysis of the change dynamics in the parameter IN for the evaluation of the current FPES of trainees is demonstrated. The possibility and expediency of using embedded monitoring systems has been experimentally confirmed. The bio-mouse and biometric chair are identified as universal means of monitoring the current FPES of students both in the  educational institution and at home (in a hostel environment).Practical significance. The developed methodical and technical means are of interest to a wide range of educational workers, including such levels as primary, basic and secondary general education, secondary professional and higher education, as well as special professional training and retraining.

scholarly journals THE INFLUENCE OF PHASE COILS’ INDUCTANCE EFFECT ON REACTION-WHEEL ACCURACY

2013 ◽  
pp. 49-54
Author(s):  
Ю. М. Маринич ◽  
Ю. М. Гуменюк
Keyword(s):  
Rapid Development ◽  
Control Signal ◽  
External Control ◽  
Control Law ◽  
Control Loop ◽  
Reaction Wheel ◽  
Wide Range ◽  
Modulation Control ◽  
And Control ◽  
Element Base

Rapid development of space technologies and their entrance to nano-level pulls out new demands for corresponding element base for manufacturing highly effective systems for angular control of the satellites. One of the most wide spread methods of angular stabilization and orientation of the space craft are systems in which reaction wheels are executive parts.While a control loop is being designed the main demand for a reaction wheel is to ensure that external control signal is proportional to created reaction momentum within all the rpm range of reaction wheel rotor.This article is dedicated to provision of control law stability for reaction wheel, built on the base of brushless direct current motor with slotless stator and pulse-duration modulation control with single PDM inverter for all the phases, for wide range of rpm by compensating phase coils’ inductance effect. Introduced approach allows compensating reaction wheel phase coils’ inductance effect on control law with preassigned accuracy and provides proportionality of reaction momentum of reaction-wheel and control signal within all the range of rpm for reaction wheel rotor.

COMBINATORIAL POLYNOMIALLY COMPUTABLE CHARACTERISTICS OF SUBSTITUTIONS AND THEIR PROPERTIES

2020 ◽  
Vol 7 (2) ◽  
pp. 34-41
Author(s):  
VLADIMIR NIKONOV ◽  
◽  
ANTON ZOBOV ◽  
Keyword(s):  
Mathematical Expectation ◽  
Point Of View ◽  
Small Range ◽  
Computational Point ◽  
Wide Range ◽  
Bijective Function ◽  
The Difference ◽  
Element Base ◽  
Selection Of

The construction and selection of a suitable bijective function, that is, substitution, is now becoming an important applied task, particularly for building block encryption systems. Many articles have suggested using different approaches to determining the quality of substitution, but most of them are highly computationally complex. The solution of this problem will significantly expand the range of methods for constructing and analyzing scheme in information protection systems. The purpose of research is to find easily measurable characteristics of substitutions, allowing to evaluate their quality, and also measures of the proximity of a particular substitutions to a random one, or its distance from it. For this purpose, several characteristics were proposed in this work: difference and polynomial, and their mathematical expectation was found, as well as variance for the difference characteristic. This allows us to make a conclusion about its quality by comparing the result of calculating the characteristic for a particular substitution with the calculated mathematical expectation. From a computational point of view, the thesises of the article are of exceptional interest due to the simplicity of the algorithm for quantifying the quality of bijective function substitutions. By its nature, the operation of calculating the difference characteristic carries out a simple summation of integer terms in a fixed and small range. Such an operation, both in the modern and in the prospective element base, is embedded in the logic of a wide range of functional elements, especially when implementing computational actions in the optical range, or on other carriers related to the field of nanotechnology.

Modeling and Control for Plant Dynamics Based on Reinforcement Learning

2009 ◽  
Vol 129 (4) ◽  
pp. 363-367
Author(s):  
Tomoyuki Maeda ◽  
Makishi Nakayama ◽  
Hiroshi Narazaki ◽  
Akira Kitamura
Keyword(s):  
Reinforcement Learning ◽  
Modeling And Control ◽  
Plant Dynamics ◽  
And Control
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