Physics, mathematics, and technology

2020 Issue №2

Investigation of operating modes of a mobile solar power plant with non-stationary load

Abstract

The object of the research is a power supply system based on a solar po­wer plant with a non-stationary load on the example of an automatic trading unit (vending machine Coffemar G-546). The aim of the work is an experi­mental study of the influence of solar radiation power dynamics on the volume of electricity generated, the study of the energy balance of the test facility, the study of the possibilities and development of recommendations for optimizing energy losses in the low-voltage mode of the equipment.

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Development of a web-application for interaction of in-terested stakeholders in the life cycle of a residential house

Abstract

The availability of a suitable web-application (a full-fledged program that interacts with users (stakeholders), meets their requirements and returns the expected results) greatly simplifies the process of monitoring the construction of residential building. The main stakeholders involved in the life cycle of the residential building are considered, the interface of the web-application and the functionality for linking the database with the modules of this application are developed.

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How to extract formulas from Pascal's triangle to find all primes

Abstract

In the presented arithmetic study, the existence of an infinite set of nu­merical properties of a right-angled Pascal triangle is confirmed and the main results of finding its numerical discriminant are given. Exactly, the numerical properties of the truncated Pascal triangle for the direct finding of all primes are found.

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