Browsing 2020 by Issue Date
Now showing items 21-40 of 217
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Stability analyses of a drill string system
(БНТУ, 2020)To avoid stick-slip vibration, one of the most important forms of self-excited vibrations in deep hole drilling, this paper studies the stability a drill system based on a twodegree-of-freedom discrete model. It is a state-dependent delay model that could describe the nonlinear dynamic characteristic of drilling systems more accurately, compared with the traditional constant delay ...2021-01-26 -
Трансмиссионный механизм цифровой экономики
(БНТУ, 2020)In the context of the continuous development of the digital economy, countries are paying more and more attention to its research. This article briefly introduces the definition of the digital economy with a focus on analyzing the transmission mechanism of the digital economy so that people understand how the digital economy contributes to the development of the national economy.2021-01-26 -
Особенности расчета основных параметров механизмов шагания одноковшовых экскаваторов и отвалообразователей
(БНТУ, 2020)The analysis of the factors influencing the stability of walking excavators and overburden spreaders is carried out. The method of calculating the main parameters of the walking mechanisms of mining machines is presented. The simulation of the movement of a spreader equipped with a cam walking mechanism has been performed. The analysis of parameters during the movement of an ...2021-01-26 -
Выделение и изучение изолятов грибов рода триходерма
(БНТУ, 2020)The development of the organic agriculture all over the world and in Belarus has shown the importance of studying and introducing the biological methods of controlling plant diseases during last 10-15 years. This work aims to study various microorganisms that can form the basis of modern plant protection products without damaging the environment and human health. 40 strains of ...2021-01-26 -
Киберсоциализация молодежи на примере мобильного приложения «KROK»
(БНТУ, 2020)Since communication plays a large role in the formation and development of a personality, it is important to study the characteristics, forms of communication in online applications and the Internet. Mobile application «KROK» increases the level and quality of the educational process.2021-01-26 -
Применение микросекундных импульсных режимов для электрохимического полирования поверхности легкоокисляемых металлов и сплавов
(БНТУ, 2020)Studies of the influence of the amplitude, frequency and duration of pulses on the surface quality of titanium, zirconium and magnesium alloys during pulsed electrochemical polishing are presented.2021-01-26 -
Производство китайского рапса и эффект сбалансированного удобрения
(БНТУ, 2020)The article is devoted to rapeseed as an important crop with high economic value. The areas of application of rapeseed, the importance of this crop for China and the need for balanced fertilization of rapeseed crops to obtain high yields are indicated.2021-01-26 -
Разработка технологии формирования газотермических композиционных покрытий, модифицированных наноуглеродными компонентами
(БНТУ, 2020)One of the main tasks in mechanical engineering is to reduce costs and increase the resource of parts of friction units. One of the ways to solve this problem is the application of thermal gas composite coatings. This research was carried out in the "Industrial research laboratory of plasma and laser technologies" (BNTU) to develop the technology for the introduction of nanocarbon ...2021-01-26 -
Оценка токсикологического действия СОЖ, используемых при резании металлов
(БНТУ, 2020)In this paper we consider the problem of the impact of waste lubricating technological means (LTT) on the human body. Particular attention is paid to the main paths of receipt of hazardous substances into the body LTT workers and has the effect of occupational diseases. It is proved that under the influence of oil on the body develop diseases such as lung cancer, throat, lips, ...2021-01-26 -
Анализ эффективности обработки крепежных отверстий на станке с ЧПУ комбинированными инструментами
(БНТУ, 2020)It is proposed to use the possibilities of kinematics of modern CNC machines to expand the scope of combined and multifunctional processing. A project is proposed for machining fastening holes in the "Bracket" part of a MAZ car on a 4-axis machining center with combined tools. Achieved reduction of the nomenclature of tools, piece time and unit power by more than 2 times. A model ...2021-01-26 -
МКЭ-анализ комбинированного нагружения античной амфоры
(БНТУ, 2020)FEA simulation of roman type amphora is provided. 3D-model is drawn from archeology issue. Four load cases are simulated including filled amphora hanging on the handles, vertical compression by standing man, pressurizing up to 1 bar level, side squeezing. Both tension as compression stress concentrators are revealed. It relates to the joints between handles and body so to the ...2021-01-26 -
Особенности применения СОЖ при высокоскоростном шлифовании
(БНТУ, 2020)Кривда, К. В. Особенности применения СОЖ при высокоскоростном шлифовании / К. В. Кривда, О. К. Яцкевич, А. Г. Василенко // Новые горизонты - 2020 : сборник материалов VII Белорусско-Китайского молодежного инновационного форума, 17 ноября 2020 года / Белорусский национальный технический университет. – Минск : БНТУ, 2020. – Т. 1. – С. 134-135.2021-01-26 -
Design and implementation of the turbidity remote monitoring system based on stm32f407 microcontroller
(БНТУ, 2020)Facing the developing trend of remote monitoring and real-time early warning of the monitoring system, based on FX -11A optical fiber sensor and the STM32F407 microcontroller, a turbidity remote monitoring system design is completed to monitor turbidity with high precision. According to Lambert-Beer Law and theoretical derivation, the relationship between the reference voltage ...2021-01-26 -
Matthew effect in B2C and its countermeasures — exploration of new C2B mode
(БНТУ, 2020)This paper studies the Matthew effect in the field of B2C, through the search theory of consumers and the scale effect of businesses, the disadvantages of the current B2C model are obtained. Combined with the exploration of C2B under the background of industry 4.0 and some new transaction modes in the game, we propose a reverse transaction mode in the field of B2C to improve the ...2021-01-26 -
LCA analysis of private car fuel in shenyang based on greet model
(БНТУ, 2020)The purpose of this project to life cycle assessment as the guiding ideology, the GREET model is used to analyze the traditional fuel vehicle (E10), natural gas (CNG) car, pure electric vehicle (EV) and hybrid electric vehicle (HEV) fuel the whole life cycle energy consumption and pollutant emissions, the following conclusion: the optimal, pure electric vehicle energy conservation ...2021-01-26 -
Design and implementation of gas ultrasonic flowmeter system based on max35104
(БНТУ, 2020)In the production, supply, storage and marketing of natural gas industry, gas measurement is a key link. Aiming at solving the problems in the current ultrasonic gas flowmeter, such as high-power consumption, low measurement accuracy and difficult data transmission, an ultrasonic gas flowmeter based on MAX35104 is designed and implemented. The system takes STM32F103 microcontroller ...2021-01-26 -
Подход к оценке рациональности выбора программных и аппаратных продуктов пользователями
(БНТУ, 2020)The analysis of methods to carry on usability assessment based on self-reported parameters is presented. A set of approaches to determine the rationality of user’s choice of software and hardware products is proposed to reveal overestimation, underestimation and adequate choices.2021-01-26 -
Оценка степени антропогеного влияния на почву по ключевым диагностическим показателям
(БНТУ, 2020)In connection with the increase in the degree of anthropogenic load on the soil and the level of its pollution, it is necessary to search for a method of systemic ecological analysis based on the comparison of diagnostic indicators (the content of heavy metal ions and the enzymatic activity of soils) with the type of soil, the place of sampling and the degree of anthropogenic ...2021-01-26 -
Использование электроэнцефолографии для оценки эмоциональных состояний
(БНТУ, 2020)A method for determining emotional states using electroencephalography waves is discussed. The features of electroencephalography as a biometric parameter are discussed, including the main characteristics of signals and the method to obtain them. The classification of emotional states by the model of J. A. Russell is considered.2021-01-26 -
Программная система самотестирования для оценки эргономики программных продуктов
(БНТУ, 2020)The approach for self-testing of the software efficiency for the current user is discussed based on the express-testing with personal biometric devices. The mobile software system similar to fitness training software is proposed to carry on such express tests.2021-01-26