卷 3, 编号 20 (2015)
- 年: 2015
- ##issue.datePublished##: 21.12.2015
- 文章: 10
- URL: https://ogarev-online.ru/2311-2468/issue/view/18984
完整期次
Algorithm for scheduling classes for higher education
摘要
The article presents an algorithm for scheduling classes considering near- optimal solution outlet. The algorithm can be used for schedule manual adjustment.
Dependences of on-state propagation velocity on thyristor geometric parameters
摘要
The article considers the study results of on-state linear propagation velocity dependences on current density in open thyristors by varying the values of their geometric parameters. The study was carried out on the basis of modelling of thyristor turn-on in Synopsys TCAD software environment. The approximation dependences of on-state propagation velocity on thyristor geometric parameters are presented.
Relationship coefficients for complete calibration of typical neutron radiation unit
摘要
This article considers the relationship coefficients sufficient for testing only one of the values of neutron radiation. Using the appropriate coefficients in reference neutron fields by the results of indirect measurements, one can determine the values of the absorbed neutron dose and the equivalent neutron dose and thereby provide calibration based on dosimetric quantities. This eliminates the need to use standard mobile dosimetry measuring instruments for direct measurements of the absorbed and equivalent neutron dose rates.
Limiting switching overvoltage on power semiconductor devices
摘要
This article discusses the current approaches to the problem of limiting switching overvoltage on power semiconductor devices. The author studies the mathematical relations that describe transient processes when turning off power semiconductor devices considering the set of parameter values of snubber circuits. Conclusions are made on the advantages and disadvantages of the methods. Some ways of their improvement are suggested.
Using HomePlug av for organization and extension of modern local networks
摘要
The article considers the advantages and disadvantages of power line communication technology (PLC). The author presents experimental data on using HomePlug AV standard on the power line of 220 V 50 Hz.
User authentication based on keystroke dynamics
摘要
Due to the rapid development of network technology and universal introduction of multi-user computer systems, the problem of user authentication has become particularly relevant. This article considers the user authentication methods with a focus on analyzing the keystroke dynamics.
Efficiency evaluation of pipeline-oriented digital signal processing algorithms
摘要
This paper deals with the efficiency of pipeline-oriented digital signal processing algorithm. A comparative analysis of the results of a vector magnitude calculation is presented.
Application of MATLAB for analyzing of enterprise financial condition
摘要
The article considers the role of financial analysis in the company prospects. The authors focus on the problem of neural network modelling to predict the company financial performance by using of MATLAB software package.
The problem of cyber threats in industrial automation systems
摘要
The article considers the reasons of cyberattacks on industrial facilities. In this connection, the main ways of industrial network security improvement are analyzed.
Ensuring equal distribution of reverse voltage on series-connected power semiconductor devices
摘要
The article presents the mathematical relationships describing the processes that occur in valve shoulder devices when turned off. The approaches to defining snubber circuit parameters are considered. Conclusions are made on the shortcomings of the existing techniques. Some ways of their improvement are suggested.