Browsing Т. 12, № 1 by Issue Date
Now showing items 1-9 of 9
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Evaluation of Nonuniformity of Elastic Properties of Sheets Made from Closed-Сell Polyolefin Foams by Acoustic Method
(БНТУ, 2021)The widespread use of polyolefin foams in strategically important industries is due to their high thermal, sound and vibration insulation properties. The aim of the work was to evaluate the non-uniformity of elastic properties over the area of sheets of polyolefin foams of various types using the acoustic non-contact shadow amplitude method of testing and confirmation by the ...2021-03-18 -
Development of Executive Equipment Design for Implementing the Process of Generating of Drops of Micro- and Nanoscale Range
(БНТУ, 2021)Modeling of velocities and temperatures processes distribution in the plasma-forming channel determining the design features and optimal parameters of the plasma torch nozzle is one of promising directions in development of plasma technologies. The aim of this work was to simulate the processes of velocities and temperature distribution in the plasma-forming channel and to determine ...2021-03-18 -
Development and Testing of a Methodology for Assessing of the Correlation Velocity Measurements’ Accuracy for the Hydrodynamic Investigations of the Turbulent Coolant Flow in Nuclear Reactor Elements
(БНТУ, 2021)The correlation method of the coolant flow measuring is widely used in research practice including for studying of turbulent coolant flows in scale models of elements of nuclear power plants. The aim of this work was to develop a technique for assessing the effect of noise recorded by a measuring system on the flow rate readings obtained using the correlation method. A technique ...2021-03-18 -
Optimization of the Emitting Coil of a Hardware-Software Complex for Study of Low-Frequency Electromagnetic Radiation’s Shielding Effectiveness
(БНТУ, 2021)Optimization of the radiation coil of the hardware-software complex for studying the effectiveness of shielding of low-frequency electromagnetic radiation will make it possible to assess the effectiveness of shielding coatings at a higher level. This fact will make it possible to develop coatings with improved characteristics. The purpose of this work was to determine the optimal ...2021-03-18 -
Variables Selection in the Ultraviolet, Visible and Near Infrared Range for Calibration of a Mixture of Vegetable Oils by Absorbance Spectra
(БНТУ, 2021)The aim of the work was a multivariate calibration of the concentration of unrefined sunflower oil, considered as adulteration, in a mixture with flaxseed oil. The relevance of the study is due to the need to develop a simple and effective method for detecting the falsification of flaxseed oil which is superior in the content of essential polyunsaturated fatty acids to olive oil. ...2021-03-18 -
Experimental Installation for Determination of Attenuation Coefficient of Permanent Magnetic Field by Protective Materials
(БНТУ, 2021)The permanent magnetic field in addition to electromagnetic radiation has a significant effect on performance of devices. This is particularly true for highly sensitive precision measuring equipment, such as, for example, magnetometers or photomultiplier tubes. In this regard a new high-performance materials for protection against permanent fields and electromagnetic radiation ...2021-03-18 -
Design of Peltier Element Based on Semiconductors with Hopping Electron Transfer via Defects
(БНТУ, 2021)The study of thermoelectric properties of crystalline semiconductors with structural defects is of practical interest in the development of radiation-resistant Peltier elements. In this case, the spectrum of energy levels of hydrogen-like impurities and intrinsic point defects in the band gap (energy gap) of crystal plays an important role. The purpose of this work is to analyze ...2021-03-18 -
Фемтосекундная лазерная система с импульсной накачкой генератора и усилителя при использовании одного силового блока
(БНТУ, 2021)Уже на протяжении нескольких десятилетий развитие методов генерации сверхкоротких импульсов является самостоятельной актуальной научно-технической задачей. Идёт постоянное совершенствование как способов получения импульсов, так и методов их использования. Целью данной работы являлось исследование возможности реализации согласованной работы двух принципиально разных типов лазеров ...2021-03-18 -
Algorithm for Control of Unmanned Aerial Vehicles in the Process of Visual Tracking of Objects with a Variable Movement’s Trajectory
(БНТУ, 2021)The purpose of the research was to create an algorithm for determining and correcting the output parameters of the navigation module and the flight-navigation complex of unmanned aerial vehicles which provides control of an aviation gyro-stabilized platform with a multispectral optoelectronic system during flight and tracking various objects of observation. Principles of control ...2021-03-18
