Промислова реалізація методу стабілізації газорідинного шару дозволяє значно розширити галузь застосування пінних апаратів і відкриває нові можливості інтенсифікації технологічних процесів з одночасним створенням маловідходних технологій. У статті встановлені основні параметри, що впливають на гідродинаміку пінних апаратів, розглянуті основні конструкції та режими роботи пінних апаратів. Виявлено зв'язок гідродинамічних параметрів. Розглянуто гідродинамічні закономірності пінного шару. Вказані фактори, що впливають на процес масообміну, як в газовій, так і в рідкій фазах. Проведений аналіз ряду досліджень показав, що перспективним напрямком інтенсифікації процесу масообміну є розробка апаратів з трифазним псевдозрідженим шаром зрошуваної насадки складних форм із сітчастих матеріалів. Отже, необхідне проведення спеціальних досліджень гідродинамічних режимів роботи апарату з сітчастою насадкою і визначенням параметрів, що впливають на швидкість переходу насадки з одного режиму в інший.
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The relevance of the study is due to the importance of China as one of the main leaders of world social and economic development. China's economy has been developing for the last four decades in a row (1978-2018) almost without crises, at high rates, sometimes adding 10% a year [8]. Today, China is the leading economic power, its gross domestic product (GDP) increased from $255.7 billion in 1979 to $13,05 trillion in 2018, i.e. more than 50 times [10]. The authors not only reveal the factors of the Chinese phenomenon, but also attempt to analyze the main components of China's success in economic development. The article considers the key aspects of Chinese reforms, analyzes strategic directions of modernization of China's national economy based on strengthening liberalization of the country's foreign economic activity as one of the main conditions for further large-scale borrowing of advanced technological experience of the highly developed countries of the world. A separate place is given to the consideration of the program of socialist modernization, conducted by Deng Xiaoping. The purpose of this study is a comprehensive analysis of features of China's economic development strategy and the main factors of its rapid growth. In the article the authors examine the key features of China's economic development strategy, the priority directions of its modernization: public administration reforms aimed at the priority development of the economy and social sphere; they also analyze the features of attracting national and foreign investments for a breakthrough in socioeconomic development.
A scientific approach to methods of technical support, economic and organizational management, as well as planning the activities of enterprises often dictates the need to make decisions not on one but on several performance indicators simultaneously. The presence of a number of situations with one or another degree of uncertainty in modern difficult conditions of forecasting requires the involvement of a certain mathematical apparatus for its description. The task of removing uncertainty is becoming complicated if it is necessary to evaluate the effectiveness of control actions in the system according to several performance criteria. Therefore, at present, the development of mathematical methods is actively underway, which allows solving applied problems in a multi-criterial formulation. The article describes the approach to solving multi-criteria problems based on the principle of observing the hierarchical ratio of probabilities of possible states of the external environment of the study.
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