Results 141 to 144 of about 1,630 (144)

Исследование способов повышения чувствительности дифференциальной защиты трансформатора

2017
В данной диссертации исследованы различные способы повышения чувствительности. В ходе выполнения работы была построена экспериментальная установка дифференциальной защиты.
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Расчёт Ñ„ÑƒÐ½ÐºÑ†Ð¸Ð¾Ð½Ð°Ð»ÑŒÐ½Ñ‹Ñ ÑÐ»ÐµÐ¼ÐµÐ½Ñ‚Ð¾Ð² дифференциального рефрактометра с помощью нейронной сети

As a result of the research, the development of a neural network for calculating the functional parameters of a differential refractometer was implemented. The data of the cuvette design and refractive index have been obtained, which allow measurements of the refractive index to be carried out with an accuracy of up to the fourth decimal place.
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Повышение надежности дифференциальной защиты трансформаторов в Ð¿ÐµÑ€ÐµÑ Ð¾Ð´Ð½Ñ‹Ñ Ð¿Ñ€Ð¾Ñ†ÐµÑÑÐ°Ñ

The work is devoted to the study of the problem of differential protection in transient modes and ways to improve the reliability of its operation. Tasks that were solved during the research: 1) various braking algorithms in static and dynamic modes are analyzed; 2) a model of a power transformer reproducing transients has been created, the signals of ...
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Изучение биологической активности наночастиц серебра на Ð¼Ð¸ÐºÑ€Ð¾Ð¾Ñ€Ð³Ð°Ð½Ð¸Ð·Ð¼Ð°Ñ Ð¸ ÑÐµÐ¼ÐµÐ½Ð°Ñ Ñ€Ð°ÑÑ‚ÐµÐ½Ð¸Ð¹

The object of research are synthesized silver nanoparticles. The purpose of the research: study of the biological activity of silver nanoparticles on microorganisms and plant seeds. The study covers conclusions about the potential of the colloid; all based on the results of tests on Petri dishes with microorganisms and plant seeds, as well as computer ...
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