Browsing Статті з наукових журналів та збірок by Title
Now showing items 18-37 of 538
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Information technology for analysis of waste management objects infrastructure
(ХАІ, 2022)The subject of study in this article is the process of analyzing infrastructure objects for waste management. The current article increases the objectivity of waste management infrastructure objects estimated by developing ... -
Mask generator for orthogonal regular mesh
(ХАІ, 2020)A SolidWorks applica-tion has been developed that allows for volumetric visualization. In the decisive program, the information about the presence of the volume mask is used as follows: the volume mask is excluded from the ... -
Mathematical model of PV module with pulse width modulation control
(ХАИ, 2015)The paper describes a mathematical model of solar photovoltaic power plant with a PWM (Pulse Width Modulation) regulator matching between the PV arrays and loads. For controling of regukator which retains the power plant ... -
Maximum power point tracking method for subsatellite solar power working under partially shaded conditions
(ХАИ, 2016)The objective of this work is to study the features of the Maximum Power Point Tracking (MPPT) for subsatellite solar power under partial shading condition of its panels. Subsatellite power system operates in parallel ... -
Method of information technology for structure analysis of urban network fire-rescue units
(ХАІ, 2023)The subject of this study is the process of analyzing the structure of the network of fire-rescue units of the city in the context of optimizing their spatial distribution. The purpose of this work is to increase the ... -
Methods of photovoltaic power control mode
(ХАИ, 2015)This paper gives an overview and classification of modern methods maximum power point tracking for the solar photovoltaic systems. Considered methods are briefly described. Advantages and disadvantages of each method are ... -
Modified hill climbing maximum power point tracking control method for satellite electrical power supply system
(ХАИ, 2017)The increasing of efficiency of the satellite electrical power supply system (PSS) is important engineering task. Modern satellite PSS widely use DC-DC converters under pulse-width controlling. Existing methods of maximum ... -
Non-emission electron source with high frequency ionization
(ХАИ, 2012)Mathematical model of the processes in inductive high frequency sources of plasma and electrons is represented in single component magnetic hydrodynamics approximation. Equations are written in two-dimension form in the ... -
On estimates of coefficients of generalized atomic wavelets expansions and their application to data processing
(ХАІ, 2020)Discrete atomic compression of digital images is considered. It is a lossy compression algorithm. The aim of this paper is to obtain a mechanism for control of quality loss. -
Progress in electric propulsion numerical simulation
(ХАІ, 2023)This paper outlines efforts to develop models of various electrical propulsion concepts, from the first attempts in the early 90s to the latest sophisticated multidimensional simulations. -
Quasi-one-dimensional mathematical model of processes in Hall effect and plasma-ion thrusters
(ХАІ, 2021)Plasma-ion thrusters with a radial magnetic field in ionization chamber and Hall effect thrusters are electrostatic electric propulsion thrusters with closed electron drift. Axial symmetry in the dynamics of the components ... -
Radial distribution of electrons rotation moment in hall effect and plasma-ion thrusters
(ХАІ, 2021)The subject of the article is the radial distribution of electron motion parameters inside electric rocket engines with a closed electron drift. The radial magnetic field in Hall thrusters limits the axial flow of electrons ... -
Recent french results of small hall effect thrusters investigations in collaboration with the national aerospace university in Kharkov
(ХАИ, 2009)The significance of using and investigation of Hall effect thrusters is described in this paper. The progress in development of HET all over the world and activities of Ukraine and France on this field are given. The ... -
Tomic functions and lacunary interpolation series in boundary value problems for partial derivatives equations and image processing
(ХАІ, 2020)In the paper we consider and solve the problem of construction of the so called tomic functions – the systems of infinitely differentiable functions which while retaining many important properties of the shifts of atomic ... -
Topological designing and analysis of the composite wing rib
(ХАІ, 2020)The composite structures in the aerospace industry for in recent decades are widely applied however, at the beginning of the 21st century composites are growing rapidly. The largest companies in the aerospace industry are ... -
Topological optimization hybrid algorithm for the adhesive joint
(ХАІ, 2023)The subject of this study is a topological optimization algorithm for a lapped symmetric adhesive joint. The purpose of this research is to create a hybrid optimization algorithm that combines the advantages of a genetic ... -
Topological optimization of a symmetrical adhesive joint. Island model of genetic algorithm
(ХАІ, 2022)The purpose of this article is to find the optimal form of applied overlays, which can have a variable thickness in the presence of a number of restrictions. -
Алгоритм проектирования рациональных силовых конструкций многостеночных крыльев малого удлинения
(ХАИ, 2006)Предложен эффективный алгоритм выбора рациональных параметров силового набора крыла малого удлинения. Благодаря использованию особенностей целевой функции и оригинальной концепции уменьшено количество трудоемких прямых ... -
Анализ влияния конфигурации магнитного поля на параметры плазмы в аномальном тлеющем разряде в скрещенных электрическом и магнитном полях
(ХАИ, 2015)На основании разработанной жидкостной модели проведен расчет потенциала плазмы, температуры и концентрации электронов в разрядном промежутке со скрещенными электрическим и магнитным полями с различными конфигурациями ... -
Анализ влияния пористости кадмиевого электрода на емкость никель-кадмиевых аккумуляторов
(ХАИ, 2011)Рассмотрены электрохимические процессы, протекающие в никель-кадмиевых аккумуляторах при их заряде и разряде. С помощью теории пористого электрода получены математические зависимости, описывающие зависимость потенциала ...