bluuebunny/crossref_metadata_2025_split huggingface dataset:
Produção de Vida em Tempos de Morte: cinco movimentos esquizoanalíticos
Authors: HUR DOMENICO UHNG 
Published: December 2021

Vivemos num período marcado pela morte, hostilidade contra às diferenças, autoritarismos explícitos e que em grande parte são difundidos pelo próprio Governo federal. Dessa forma, esse artigo tem como objetivo refletir sobre pistas para a produção de vida em tempos atuais de propagação de morte, tanto no âmbito individual, como coletivo, a partir do referencial teórico da esquizoanálise. O método utilizado foi a seleção de alguns conceitos da filosofia da diferença de Gilles Deleuze e Félix Guattari para operar essa reflexão sobre o contemporâneo. Como resultados discutimos cinco movimentos da esquizoanálise para produção de vida: a transmutação das forças; adotar o próprio território como ponto de partida; trabalhar a potência do occursus; valorizar o infinitamente pequeno; e fomentar o afeto, os devires, como passagem.Palavras-chave: Esquizoanálise. Esquizodrama. Gilles Deleuze. Félix Guattari. Psicologia. Política. Production Of Life In Times Of Death: five schizoanalytic movementsABSTRACTWe are living in a period marked by death, hostility to differences, explicit authoritarianism, which is largely spread by the federal government itself. Thus, this article aims to reflect on clues for the production of life in times of death, based on schizoanalysis. The method used was the selection of some concepts from the philosophy of difference of Gilles Deleuze and Félix Guattari to operate this reflection on the contemporary. As a result, we discuss five schizoanalysis movements for the production of life: the transmutation of forces; adopting the territory itself as a start point; working the power of occursus; to value the infinitely small; and foster affection, becomings, as a passage.Keywords: Schizoanalysis. Schizodrama. Gilles Deleuze. Félix Guattari. Psychology. Politics.
ТЕХНОЛОГИЧЕСКИЕ РЕШЕНИЯ ПО УТИЛИЗАЦИИ ЖИДКИХ ПРОДУКТОВ МЕДЛЕННОГО ПИРОЛИЗА ДРЕВЕСНОЙ БИОМАССЫ
Authors: Слюсарский Константин Витальевич , Ларионов Кирилл Борисович , Ивашкина Елена Николаевна , Заворин Александр Сергеевич , Губин Владимир Евгеньевич 
Published: December 2021

Ссылка для цитирования Технологические решения по утилизации жидких продуктов медленного пиролиза древесной биомассы / К.В. Слюсарский, К.Б. Ларионов, Е.Н. Ивашкина, А.С. Заворин, В.Е. Губин // Известия Томского политехнического университета. Инжиниринг георесурсов. – 2021. – Т. 332. – № 12. – С. 173-188.
Актуальность работы обусловлена возрастающим интересом к технологиям пиролиза биомассы для снижения углеродного следа процессов её переработки. Для повышения экономической и энергетической эффективности данных технологических решений необходимо максимально полное использование всех материальных и энергетических потоков, одним из которых является формирование жидких продуктов пиролиза (т. н. пиролизной жидкости, или бионефти). Цель: классификация и выделение технологических решений для утилизации жидких продуктов пиролиза древесной биомассы с определением уровня технической готовности. Методы: аналитический обзор тематических публикаций с использованием материалов баз данных РИНЦ, Scopus и Web of Science, уровень технической готовности оценивался согласно шкале TRL. Результаты. Идентифицированы, классифицированы и описаны основные методы утилизации пиролизной жидкости, получаемой в результате медленного пиролиза древесной биомассы. Представлен обзор технологических решений и научно-исследовательских работ в области утилизации жидких продуктов медленного пиролиза. Наиболее распространенными технологиями преобразования пиролизной жидкости с получением тепловой и/или электрической энергии являются прямое сжигание в горелках котлов и теплогенераторов, в камере сгорания газотурбинных двигателей, газификация с получением синтез-газа, а также использование в качестве топлива поршневых двигателей. Технологии получения химических продуктов и веществ разделяются на простые (получение компонент дорожного строительства, консерванта для древесины, фенолформальдегидных и омыленных смол и др.) и сложные, требующие комплексной многостадийной переработки. Установлено, что наибольшим уровнем технической готовности обладают технологии энергетического применения данного продукта, в то время как наибольшей экономической эффективностью обладают технологии химического применения, несмотря на относительно низкий уровень готовности. Коммерческие решения по утилизации пиролизной жидкости доступны в области её сжигания в горелках и дизель-генераторах.
ВЛИЯНИЕ УГЛА ПАДЕНИЯ ТРЕЩИН НА ЛОКАЛЬНОЕ НАПРЯЖЕННОЕ СОСТОЯНИЕ ПРИОТКОСНОЙ ЗОНЫ ВСКРЫШНОГО УСТУПА
Authors: Марков Сергей Олегович , Хорешок Алексей Алексеевич , Тюленев Максим Анатольевич 
Published: December 2021

Ссылка для цитирования Марков С.О., Хорешок А.А., Тюленев М.А. Влияние угла падения трещин на локальное напряженное состояние приоткосной зоны вскрышного уступа // Известия Томского политехнического университета. Инжиниринг георесурсов. – 2021. – Т. 332. – № 12. – С. 211-219.
Актуальность. Напряженно-деформированное состояние массива горных пород при открытой разработке месторождений полезных ископаемых, равно как и при строительстве в грунтах выемок значительных размеров, зависит как от механических свойств пород, так и от структурно-текстурных особенностей массива горных пород. В частности, наличие трещин в приоткосной зоне уступа может значительно ослабить его устойчивость, а направление и угол падения трещин относительно откоса уступа изменяют расположение напряженных зон внутри массива относительно поверхности обнажения. Актуальной научно-практической задачей представляется выявление зон повышенных механических напряжений с целью прогноза поведения массивов горных пород с различными структурно-текстурными свойствами. Цель: выявление зон концентрации напряжений в приоткосной части уступа в массиве горных пород с различными структурно-текстурными свойствами при ведении открытых горных работ. Методы: математическое моделирование массивов горных пород с учётом их физико-механических свойств и структурно-текстурных особенностей методом конечных элементов, обработка результатов экспериментальных исследований. Результаты. Приведено описание математической модели упругого поведения естественного трещиноватого массива горных пород, имеющего поверхность обнажения в виде уступа, а также закономерности распределения концентрации напряжений в нём. Описано напряжённо-деформированное состояние нагруженного и ненагруженного массивов в ненарушенном и нарушенном трещинами различной ориентации состоянии. Описано положение зон концентрации растягивающих напряжений, проведено сравнение их значений для уступов с различным строением. Выявлены повышенные значения растягивающих напряжений в массиве при направлении падения трещин от откоса уступа по сравнению с ненарушенным состоянием и при направлении падения трещин в сторону откоса уступа.
Autobiografia jako narzędzie badań historyka idei. Casus „Wspomnień niezależnego” Richarda Pipesa
Authors: Citkowska-Kimla Anna 
Published: December 2021

The aim of the article is to develop a research tool for a historian of ideas in the form of an autobiography. It is about framing when a personal document meets the criteria of being a tool for a historian of political thought. The conclusions included the thought that the memories must be meta-considerations on the subject of written autobiography or an analysis of the problem of auto-biography within the framework of the created philosophy or history vision. Examples representing this narrative type were left by, among others, Johann Gottfried Herder, Johann Wolfgang Goethe, Thomas Carlyle, Samuel Taylor Coleridge, Friedrich Nietzsche, Benedetto Croce, Robin G. Collingwood, and in Poland Stanisław Brzozowski. The volume of Richard Pipes’ memoirs, Memoirs of a Non-belonger, which is the foundation for the analysis, has also become part of the trend. The most important thinkers who have studied the issue of autobiography in depth include Wilhelm Dilthey and Georg Misch.
The conclusions of the analysis are as follows: autobiography has a philosophical and epistemological meaning in the field of knowledge about human nature. In this sense, autobiography becomes part of anthropology, while anthropology is the foundation for the history of ideas, including political thought.
Technical vision system to ensure the movement of a group of multicopters
Authors: Bobkov Yurii , Pishchela Pavlo 
Published: December 2021

The actual task of controlling a group of multicopters performing coordinated actions and are locating at short distances from each other, cannot be performed with the help of a standard on-board autopilot on GPS or GLONASS signals, which give large errors.
The solution to this problem is possible due to additional equipment that allows you to set the distance between the multicopters and their relative position. To do this, it is proposed to mark each multicopter with an image label in the form of a standard geometric figure or a geometric body of a given color and size, and to use technical vision system and image recognition algorithms.
The structure of the technical vision system for the multicopter was developed and algorithms for image processing and calculation of the change of coordinates of the neighboring multicopter, which are transmitted to the control system to introduce the necessary motion correction, were proposed.
The method to identify the reference object in the image of the scene by its color was used in this work. This method is very effective compared to other methods, because it requires only one pass per pixel, which gives a significant advantage in speed during video stream frame processing. RGB color model with a color depth of 24-bit was chosen based on the analysis. Since the lighting during the flight can change, the color is set by the limits of change of the components R, G, B.
To determine the distance between multicopters, a very simple but effective method of determination the area of the recognition object (labels on the neighboring multicopter) with next comparation it with the actual value is used. Since the reference object is artificial, its area can be specified with high accuracy.
The offset of the center of the object from the center of the frame is used to calculate the other two coordinates.
In the beginning, the specific camera instance is calibrated both for a known value of the area of the object and for its displacement along the axes relative to the center of the frame.
The technical vision system model in the Simulink software environment of the Matlab system was created to test the proposed algorithms. Based on the simulation results in Simulink, you can generate code in the C programming language for further implementation of the system in real time.
A series of studies of the model was conducted using a Logitech C210 webcam with a 0.3 megapixel photo matrix (640x480 resolution). According to the results of the experiment, it was found that the maximum relative error in determining the coordinates of the multicopter did not exceed 6.8 %.
A complementary filter consisting of a GPS-receiver and an accelerometer
Authors: Ryzhkov Lev , Ivanko Tamara 
Published: December 2021

Complementary filters have become widely used to measure the angular position of moving objects in space due to their simplicity and high accuracy. If at first they were used mainly in navigation systems, now they are beginning to be widely used in navigation systems. In such complementary filters, the complementary filter most often includes a GPS receiver and an accelerometer. The problem of reducing the influence of high-frequency interference of the GPS receiver on the accuracy of the system is considered. Direct filtering of the output signal of the GPS receiver has a significant disadvantage, which is the delay of the filter of the measured signal. This is often the main obstacle of using filters. Complementary filters due to the combination of two meters make it possible to filter the signal without affecting the passage of the useful signal. This is the main advantage of complementary filters. It should also be noted that they are very simple to implement, which has led to the widespread use of complementary filters in systems for measuring the motion of objects. The paper proposes a second-order filter structure in which there is no integration of the accelerometer signal that significantly simplifies the implementation of the filter and eliminates the problem of the influence of the non-zero accelerometer signal. The presence of zero offset accelerometer and integration procedures is one of the main problems in solving navigation problems.
In the absence of an integrator, the question arises of taking into account the initial value of the output signal of the GPS receiver. This issue in the work is solved by the circuit method. In complementary filters built on the compensation scheme, this problem is solved quite simply. The article considers a simpler complementary filter, built on the filtration scheme. An algorithm for taking into account the initial conditions is proposed for such a filter structure. The influence of the structure of the transfer functions of the filter on the efficiency of its use is analyzed. It is shown that the complementary filter can significantly reduce the influence of high-frequency noise of the GPS receiver. The block diagram of the filter in the Matlab-Simulink environment and the simulation results that show the effectiveness of the proposed complementary filter structure are presented.
Such systems can be used in small moving objects like UAVs, in robotics, in the educational process.
Determination of the aerodynamic characteristics of the tiltrotor with the wingtip-mounted coaxial rotors
Authors: Povarov Sergii 
Published: December 2021

The article describes the study of rotor-to-wing aerodynamic interaction for the wingtip-mounted coaxial rotors configuration of the tiltrotor aircraft.
The influence of the rotor slipstreams on lift-to-drag ratio characteristic was determined. Obtained results were compared with similar characteristics of the equivalent in thrust conventional single rotor slipstreams impact.
Using the computational aerodynamics methods (panel-vortex method) the flow around the tiltrotor model with the wingtip-mounted single and coaxial rotors has been simulated. A study of the basic model configuration with conventional single rotors, based on the technical characteristics of the AgustaWestland AW609 tiltrotor, was conducted. Further researches were conducted for a modified model where single rotors were replaced with equivalent in thrust coaxial rotors. The influence of the rotor slipstreams on the aerodynamic characteristics of the model for both directions of rotors rotation in coaxial combination is considered. Also, the dependence of the maximum lift-to-drag characteristic due to the coaxial rotor diameters change has been determined.
The results show that the coaxial rotor slipstreams-to-wing aerodynamic interaction effect is the similar to the effect of conventional single rotor, but less intensive. Comparison of the results showed that a tiltrotor equipped with wingtip-mounted single rotors has approximately 20% greater maximum lift-to-drag characteristic than one equipped with coaxial rotors with the same thrust. However, the use of coaxial rotors allows getting higher maximum speed, when conventional single rotors lose the efficiency significantly. Therefore, it is advisable to conduct further research for the possibility of using coaxial rotors for tiltrotor aircrafts.
The research results are presented in graphical form. The obtained data provides a basis for further studies of the described problem, and also will be useful for new tiltrotor design works.
Determination of meridian position by a two-step ground gyrocompass in eesthetical rotor positioning
Authors: Fedorov Volodymyr , Kikot Vladyslav , Shtefan Nataliya 
Published: December 2021

Contradiction between accuracy and time of definition of a plane of a geographical meridian has significantly weakened with appearance of automatic gyrocompasses and algorithmic methods of processing of the information from them. These methods allow us to expand the range of possible modes of gyrocompasses, including non-traditional. The article considers an automatic two-stage ground gyro compass operating in the mode of natural stopping of the rotor after its pulse acceleration by non-electrical means (squib , compressed air, etc.). The specified mode is attractive because it allows to identify uncontrolled harmful moment around the axis of suspension in one start and significantly reduce the measurement time. In order to further improve the device, it is proposed to abandon the measurement of the current value of the kinetic moment, and to identify the decay coefficient of the exponential function by observing the azimuthal motion of the sensitive element of the device. Moreover, the paper shows that it is possible not to measure the initial value of the kinetic momentum, replacing the measurement with identification of this parameter by observing the same azimuthal motion of the sensitive element. In this case there is no need to have on the sensitive element any nodes associated with the transmission of power and electrical signals, the sensitive element can be made as a purely mechanical element, carrying on itself a rotating rotor.
For all considered variants of measurement (or identification) of parameters the machine simulation was carried out, which confirmed the performance of the proposed methodology.
Використання надбудови Risk Solver Platform пакету Microsoft Excel для розв’язання задачі планування виробництва комбікормів
Authors: Гриша Олена Василівна 
Published: December 2021

Розглядається модифікований варіант розв’язання задачі оптимізації розрахунку кормових раціонів. Запропонована математична модель задачі розрахунку рецептів кормосумішей, яка забезпечує одночасне отримання переліку рецептів комбікормів з урахуванням наявних на складі запасів необхідних ингредієнтів.Запропоновано спосіб автоматизації розв’язання даної задачі, який дозволяє також інтегрувати отримані результати в будь-які комплексні програмні рішення. Достовірність запропонованих рішень підтвержена їх реалізацією у рамках проведених обчислювальних експериментів.
Моделювання і порівняльний аналіз роботи класичного і нечіткого ПІД-контролерів в автоматичних системах управління
Authors: Телишева Тамара Алексеевна 
Published: December 2021

Розглянута ідентичність дій класичного ПІД-контролера, для оперативної перебудови якого використовується досвід експерта, і нечіткого ПІД-контролера, що використовує в процесі управління нечітку базу знань. На реальному прикладі розглянуті перехідні характеристики класичного і нечіткого ПІД-контролерів, зміни значень вихідних величин АСК з їх використанням . Представлені моделі контролерів і розрахунки їх параметрів. Синтезована модель нечіткого контролера і проаналізована його робота в АСК. Проведені дослідження підтвердили, що для замкнутих АСК з класичним ПІД - контролером можливо розрахувати такий нечіткий ПІД - контролер, який даватиме еквівалентну перехідну характеристику АСК, тобто це означає, що в даному випадку можна провести еквівалентну заміну класичного на нечіткий ПІД - контролер.
Reflection on COVID-19 Pandemic and Crisis Management Models in Tourism
Authors: Casal-Ribeiro Mariana 
Published: December 2021

The contemporary history of tourism has been shaken by different types of crises as natural disasters, economic crises, terrorist attacks and pandemics, resulting in economic, political and social implications that impact the tourist destination, the volume and direction of tourist flows (Ritchie, 2008; Speakman and Sharpley, 2012). In early 2020, COVID-19 took the world by surprise, causing a worldwide pandemic in just a few months. The dimension of this outbreak coupled to the mobility that characterizes tourism in the 21st century, now raises a need for reflection on the arrising and control of future pandemics. Several models of crisis management in tourism are presented in the scientific literature, however, all of generalist nature. It is urgent to examine and refine the existing crisis management models, since the models already developed have little specificity in the theme of pandemic crisis management in tourism.
Ecotoxicological assessment of Zn, Cu and Ni based NPs contamination in Arenosols
Authors: Kolesnikov Sergey , Timoshenko Аlena , Minnikova Tatiana , Minkina Tatiana , Rajput Vishnu D , Kazeev Kamil , Feizi Morteza , Fedorenko Elena , Mandzhieva Saglara , Sushkova Svetlana 
Published: December 2021

Nanoparticles are increasingly used in many industrial fields because of their special properties. In this context, several questions arise related to possible negative consequences associated with nanoparticle (NPs) entrance into the ecosystem. The adsorption of NPs by soil can adversely influence its biological properties. In the present article, the influence of Cu, Zn, and Ni NPs on the biological characteristics of Arenosol is considered. Research aimed to study the effect of Cu, Zn, Ni NPs on the biological characteristics of sandy loam chernozem. Copper, Zn, and Ni NPs were added to the soil in concentrations of 100, 1,000, and 10,000 mg kg<sup>-1</sup>. The effect of NPs on the biological properties of Arenosol was evaluated after 10-day incubation. The biological indices of the ecological condition of the soil, including the germination of radish, the length of the roots, the bacteria population, <em>Azotobacter</em> sp. count, the catalase activity, and dehydrogenases were studied. As a result of this study, it was revealed that the degree of indices changes depending on the concentration of Cu, Zn, and Ni NPs in the Arenosols. Microbiological characteristics (bacteria population, and <em>Azotobacter</em> sp. count) and phytotoxic feature (length of roots and radish germination) properties were most sensitive to contamination compared to the enzyme activity of Arenosol. Based on the soil integral index of a biological state, the strongest inhibitory effect on biological parameters of Arenosols relative to the control was exerted by Cu NPs (lower than control by 48-72%), while the greatest stability in Arenosol was found for Ni NPs (lower than control by 30-55%). The studied biological parameters allow characterizing the severity of nanoparticle exposure on Arenosols. Early diagnostics of the severity of soil contamination by NPs can be successfully used to quickly assess their impact on the soil condition and prevent possible adverse consequences.
ANALYSIS OF STUDENTSâ€™ COGNITIVE STRUCTURES USING FREE WORD-ASSOCIATION TEST IN CHEMISTRY LEARNING
Authors: Muningsih Norma - 
Published: December 2021

This study aims to determine the cognitive structure of high school students of class XI with free word-association method in teaching chemistry at the material buffer solution. The research was conducted in the second semester with a sample of 37 students at SMAN 89 Jakarta. The method used is qualitative in interpretivism paradigm, focused on the analysis of cognitive structures using free word-association method in teaching chemistry. Data obtained by interview, documentation, observation and student assignments through free word-association. Instruments free word-association tests contain stimulus word of "buffer" to collect information about students' conceptual structure in the material buffer solution. The data were subject to content analysis and divided into categories through coding. Results of this study is there are five categories in the distribution of cognitive structures through free word-association test. These categories include the definition of a buffer solution, buffer solution properties, creation of buffer solution, pH buffer solution and calculate the buffer system in biological systems. The most dominant category is category nature buffer solution. The conclusion is that students have the cognitive structure of the most widely through recall or rote learning and there are learning difficulties experienced by students in learning material buffer solution.