The article presents the testing technique and the results of experimental studies of strength and deformation, as well as the structural and mechanical characteristics of structural expanded clay concrete of a dense structure under monotonous and low-cycle loading in compression and tension by a complex of physical methods (tensometric, ultrasonic pulsed and acoustic emission). Diagrams of deformation, the speed of passage of ultrasound and the number of acoustic pulses from the stress level are obtained. Empirical formulas are proposed for determining the boundaries of microcrack formation in expanded clay concrete.
09.09.2022 Volume 1 Issue 5 View more Download
Digital devices are used in their structure for the reliable functioning of nodes and blocks of radio navigation devices. At the same time, the main importance is the choice of the method of modulation of digital signals, on which the improvement of the noise immunity of the aircraft's radio navigation device depends.
09.09.2022 Volume 1 Issue 5 View more Download
In this work, the plasma formed under the influence of Nd: YAG laser radiation with a wavelength of 1064 nm and a pulse duration of 10 ns on the indium surface at normal atmospheric pressure was studied using a spectroscopic method. The main optical properties of the laser plasma formed on the indium surface were determined by the electron density using the Stark expansion method and the electron temperature using the Boltzmann distribution graph method.
09.09.2022 Volume 1 Issue 5 View more Download
The article provides brief information about the history of the origin of fractional order integrals. Concepts of fractional integro-differential calculus have been given. The contribution of each scientist has been mentioned separately. General properties of fractional operators, definition of fractional Riemann-Liouville integrals, brief history of integro-differential calculus theory have been described.
07.09.2022 Volume 1 Issue 5 View more Download
The purpose of writing this scientific article is to analyze the methods of wet-heat treatment of clothing at manufacturing enterprises, the classification of technological processes according to the nature of the interaction of the working tool and the semi-finished product, a brief description of the operation and types of wet-heat treatment, wet-general information about thermal equipment, the state of the technological process of wet - heat treatment of garments, problems and possibilities for their elimination, recommendations for studying ways to improve methods for imparting form-holding properties to clothing during wet heat treatment.
05.09.2022 Volume 1 Issue 5 View more Download
What are the advantages of frozen bread production? Can such a business, which is very popular in European countries, become a trend in our country? Many Uzbek entrepreneurs are very cautious about foreign business ideas. Whether they qualify or not, they explore the different benefits of a new product depending on how consumers perceive it. Therefore, I suggest you familiarize yourself with the idea of making frozen bread and decide for yourself whether this is worth serious consideration or not.
05.09.2022 Volume 1 Issue 5 View more Download
SCIENCE & INNOVATION