Electronics

20180102-02
Plasma based sterilization using new multipoint ignition accessory
Kiril Ivanov, Ivo Iliev, Serafim Tabakov

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This article discusses the physical phenomenon of plasma and its basic principles. The processes of the plasma generation as well as the various particles that are produced with it are described. An overview of the effects ...  read more

20180102-01
Smart sensor node for on-line particulate matter monitoring

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Increased concentration of particulate matter in big cities and agglomerations is one of the main risk factors for the health of the residents. Conventional systems for particulate matter (PM) monitoring have significant limitations, ...  read more

20170708-02
Modern advances in energy based electrosurgical devices
Viktor Tomov, Serafim Tabakov

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A modern electrosurgical apparatus incorporates digital mechanisms to control the effect of radio frequency (RF) energy delivered to the body tissue. These mechanisms range from a closed loop system with constant power delivery ...  read more

Overview of frequency compensations in the CMOS operational amplifiers, Part two – Advance solutions
Georgi Panov

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An overview of several common used frequency compensations in the CMOS operational amplifiers is presented. The advantages and disadvantages for each of them are given based on mathematical analysis. Practical circuit examples ...  read more