ИССЛЕДОВАНИЯ СВОЙСТВ, ХАРАКТЕРИСТИК И ЭФФЕКТИВНОСТИ ТЕПЛОЗАЩИТНЫХ МАТЕРИАЛОВ ПРИ ВОЗДЕЙСТВИИ ВЫСОКОИНТЕНСИВНОГО ТЕПЛОВОГО ИЗЛУЧЕНИЯ (original) (raw)
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ЭКСТРАКЦИОННОЕ ИЗВЛЕЧЕНИЕ ПЛАТИНЫ И ПАЛЛАДИЯ ИЗ ВЫСОКОХЛОРИДНЫХ РАСТВОРОВ
Сборник тезисов докладов XXIII Международной Черняевской конференции по химии, анализу и технологии платиновых металлов
Министерство науки и высшего образования Российской Федерации Российская академия наук Научный совет по неорганической химии РАН Научный совет по аналитической химии РАН Научный совет по химической технологии РАН Российское химическое общество имени Д.И. Менделеева АО «Новосибирский аффинажный завод» Институт неорганической химии имени А.В. Николаева СО РАН ФИЦ Институт катализа имени Г.К. Борескова СО РАН Новосибирский государственный университет Институт общей и неорганической химии им. Н.С. Курнакова РАН МИРЭА-Российский технологический университет XXIII МЕЖДУНАРОДНАЯ ЧЕРНЯЕВСКАЯ КОНФЕРЕНЦИЯ ПО ХИМИИ, АНАЛИТИКЕ И ТЕХНОЛОГИИ ПЛАТИНОВЫХ МЕТАЛЛОВ приурочена к 95-летию АО «Новосибирский аффинажный завод» Сборник тезисов докладов Новосибирск 3-7 октября 2022 УДК 546.9
ИССЛЕДОВАНИЕ ПОВЕДЕНИЯ ЗАЛИВОЧНЫХ ГИДРОГЕЛЕЙ ПРИ ВОЗДЕЙСТВИИ ВЫСОКИХ ТЕМПЕРАТУР
Методами термогравиметрии кислородного индекса и огневой трубы исследована деструкция образцов заливочного гидрогеля, для многослойных огнестойких остеклённых конструкций, при воздействии высоких температур. Проанализированы механизмы и установлены основные параметры деструкции поливинилового спирта, полиакриловой кислоты, регулятора рН и гидрогеля на их основе. Определены показатели горючести исходных компонентов и полимеризата гидрогеля.
ТЕПЛОМЕТРИЧЕСКАЯ МЕТОДИКА ИЗМЕРЕНИЯ КОЭФФИЦИЕНТА ЭМИССИИ МАТЕРИАЛОВ И ПОКРЫТИЙ
The urgency of creating methods and equipment for measuring the thermoradiation characteristics of energy-saving coatings is shown. The use of heat flux measurement methods for measuring the emissivity of spectrally selective coatings, the justified structure and the ratio of the geometric dimensions of the corresponding equipment are substantiated. The equipment implementing this method is described and the results of measuring the emission coefficient of glasses and films obtained by this way are given.
ТЕОРЕТИЧНІ АСПЕКТИ ВЗАЄМОВІДНОСИН МІЖ ВЛАДНИМИ СТРУКТУРАМИ ТА ПОЛІТИЧНОЮ ОПОЗИЦІЄЮ
Buslenko V. V. The theoretical aspects of the relationship between the power and the political opposition Based on the concepts of the power, the character and specifics of the relationship between the power and the political opposition are analyzed. The political opposition is considered through the category “power”. It is found out the causes and the level of dependence of the opposition from the power. It is considered that within the dichotomy of "power-opposition" relations have subject-subjective character. These are two equally competitive forces which have different status, however, it is temporary and may be changed depending on the election results or for any other reason. The character of the relationship between the two sides, their forms and methods are considered to be derived from the uneven attitude to the resources. In this case, complete domination over power resources minimizes the impact on access to the decision-making process from the side of the opposition and exacerbates the conflict between the sides. Keywords: power, opposition, relationship, politics, social exchange theory.
2018
The subject matter of the article is the process of hardening cutting tools for heavy machines. The goal of the work is to increase the operating life, reliability, durability and wear resistance of carbide cutting tools due to magnetic-pulse treatment. The tasks were solved: the main factors affecting the change in wear resistance of a carbide treated with a pulsed magnetic field; the impact of the test results of carbide cutting tools hardened by a magnetic-pulse treatment (MPT) on the productive capacity was studied; the MPT impact on the tool durability indices; the interrelation of the MPT parameters, cutting parameters and production efficiency were studied. The following results were obtained: the production tests of carbide cutting tools showed that magnetic-pulse treatment contributes to improving the wear resistance of cutting tools, reducing the coefficient of durability variations, increasing gamma-percentile stability, reducing the amount of chipping and breakage in the...
2021
The relevance of the work is caused by the need of bushings repair that have working wear, to improve the anti-friction characteristics of tribo-tension, to save expensive raw materials and the need of resource saving technologies implementation. There is no doubt in saving expensive materials and replacing them with less expensive ones or using metalworking production waste. Provision of increased values of loads and sliding speeds with a general reduction in the cost of interfaces and comparable inter-repair periods is achieved by using chip waste and conducting economical dynamic alloying at the micro level with materials that can improve the performance of interfaces in general. The decrease in value of anthropogenic influence is achieved due to the use of relatively waste-free recovery methods. The aim of the work is to create a tribo-voltage that works effectively under the specified operating conditions, while limiting the amount of waste of expensive resources and minimizing...
Bulletin of the Kyiv National University of Technologies and Design. Technical Science Series, 2020
Development of ecologically safe technology of finishing the textile materials using strawberry sepals extract and determination of influence for a mordant with salts from various metals on coloring quality. The technological parameters of the dyeing process by strawberry sepals extract were determined for linen, cotton, viscose and wool textile materials using pre-treatment with or without metal salts of Cu2+, Zn2+, Ni2+, Fe3+, Al3+. The color characteristics of the samples were determined using Adobe Photoshop CS6 software to evaluate the color quality. The resistance of the dyeing the textile materials to physical and chemical influences were determined by standard methods for textile materials. Ecologically safe technology of finishing the cellulosic and wool textile materials using strawberry sepals extract has been developed. The dyeing of textile materials made from cellulose fibers made it possible to obtain coloration from light to dark brown. After dyeing, the brightest sa...