Econometric modeling of the development of helicopter industry enterprises taking into account the innovation factor

Over the past decade, the Russian helicopter industry, which has been characterized by steady growth, has been confronted with difficulties caused by unstable political situation, fierce competition in world markets, rapid development and introduction of innovative technologies in this sector of the Russian economy. In order to maintain their position in the global market and increase the competitiveness of their products, Russian companies must adapt production to the changing demand for helicopters and pay increased attention to supporting the technological support of production with the latest materials, equipment and components of domestic production. The purpose of this study is to analyze the current state of the enterprises of the domestic helicopter industry on the example of the holding "Helicopters of Russia". To achieve this, the econometric package EViews10 was used and linear and nonlinear models were built, allowing to evaluate the existing and promising demand for Russian helicopters. As a result of the analysis of the models, factors that have a significant impact on the production of Russian helicopters were identified

ИНСТРУМЕНТАРИЙ МОДЕЛИРОВАНИЯ СОСТОЯНИЯ РОССИЙСКИХ ПРЕДПРИЯТИЙ ВЕРТОЛЕТОСТРОИТЕЛЬНОЙ ОТРАСЛИ НА ПРИМЕРЕ ХОЛДИНГА "ВЕРТОЛЕТЫ РОССИИ"

Over the past decade, the Russian helicopter industry, which has been characterized by steady growth, has been confronted with difficulties caused by unstable political situation, fierce competition in world markets, rapid development and introduction of innovative technologies in this sector of the Russian economy. In order to maintain their position in the global market and increase the competitiveness of their products, Russian companies must adapt production to the changing demand for helicopters and pay increased attention to supporting the technological support of production with the latest materials, equipment and components of domestic production. The purpose of this study is to analyze the current state of the enterprises of the domestic helicopter industry on the example of the holding "Helicopters of Russia". To achieve this, the econometric package EViews10 was used and linear and nonlinear models were built, allowing to evaluate the existing and promising demand for Russian helicopters. As a result of the analysis of the models, factors that have a significant impact on the production of Russian helicopters were identified.За последнее десятилетие российское вертолетостроение, которое характеризовалось устойчивым ростом, столкнулось с трудностями, вызванными нестабильной политической обстановкой, ожесточением конкурентной борьбы на мировых рынках, быстрым развитием и внедрением инновационных технологий в эту отрасль российской экономики. Чтобы сохранить позиции на мировом рынке и повысить конкурентоспособность производимой продукции, российские компании должны адаптировать производство к изменяющейся направленности спроса на вертолеты и уделять повышенное внимание вопросам поддержки технологического обеспечения производства новейшими материалами, оборудованием и комплектующими отечественного производства. Целью данного исследования является анализ современного состояния предприятий отечественного вертолетостроения на примере холдинга «Вертолеты России». Для ее достижения был использован эконометрический пакет EViews10 и построены линейные и нелинейные модели, позволяющие оценить существующий и перспективный объёмы спроса на российские вертолеты. В результате анализа моделей были установлены факторы, оказывающие значительное влияние на производство российских вертолетов

Detailed characterization of particle size fractions of municipal solid waste incineration bottom ash

Municipal Solid Waste Incineration Bottom Ash (MSWI BA) is of increasing interest as a secondary construction material worldwide. In most cases, MSWI BA is used in isolated conditions. However, according to the Dutch Green Deal B-076 in 2012, by 2020 all MSWI BA should be used in a non-sealed environment in the Netherlands. However, freshly produced. MSWI BA normally does not match environmental legislation due to high leaching of chlorides, sulfates, and potentially toxic elements. Because different particle size fractions of MSWI BA are of interest for designing optimized concrete recipes, it is beneficial to analyze the whole range of MSWI BA fractions in detail. In this study, 14 size fractions of MSWI BA were analyzed to determine the total elemental composition and leaching capacity, mineralogical composition, and shape variety of fine particles. From the point of view of mineralogical composition, 6 particle size fractions ( 22 mm) can be distinguished. All together the analyses showed that almost all fractions of the investigated MSWI BA can be used as secondary building materials. However, because the leaching of fine fractions is 5–10 times higher than of coarse fractions, all these fractions must undergo various treatments to allow them to match the environmental legislation. Thus, to decontaminate MSWI BA from potentially toxic elements, a division into three size groups is suggested: fine (<125 μm), medium (125 μm - 1 mm), and coarse fractions (over 1 mm)