61 research outputs found
Between Tradition and Modernity : Sergei Vasilenko and His Unknown Works for Viola and Piano.
No full textSergei Vasilenko has been perceived as a conformist and inconsequential Soviet composer in post-Soviet Russia. The recent discoveries of unpublished documents reveal Vasilenko to be a talented musician whose search for a niche within the culture of Soviet music forced him to keep his true musical writings secret from the public in a drawer of his desk.
The author of this thesis was fortunate to find a number of his unknown and unpublished compositions for viola and piano. In view of the paucity of music for stringed instruments in Russia in the first decades of the last century, Vasilenko’s seven compositions for viola, which are all different in style, mode and technique, assume especial importance. The analysis of these works shows that Vasilenko equally combined the elements of many diverse and often contradictory musical conceptions of the time, including the Silver Age, Neoclassicism, Romanticism and the Avant-garde. His innovative style – expanding the technical and sonorous potential of the instrument, and the rhythmic and harmonic resources of Russian music – launched new standards in viola performance and expanded its repertoire. This thesis investigates the language, performing issues and the reasons for the neglect of his viola works as well as their stylistic roots that spanned from Vasilenko’s interest in the Baroque to Russian liturgical music.
The aim of this study is to re-evaluate the role of Vasilenko in the enhancement of the viola as a solo instrument in the twentieth century and bring his works to a concert platform. The analysis and discussion of these subjects rely heavily on unpublished and little-explored materials on Vasilenko from the archives in Moscow. This PhD submission has practical and written components that consist of the written thesis, edited musical scores and the first complete recording of Vasilenko’s compositions for viola and piano released by Toccata Classics
To the knowledge of the fauna of geometrid moths (Lepidoptera: Geometridae) of Dzungarian Alatau, Kazakhstan
No full textThe annotated list of 133 species of geometrids (Lepidoptera) from Dzungarian Alatau in Kazakhstan is given; 42 species are recorded for this ridge for the first time. The material is deposited in Institute of Animal Systematics and Ecology of the Russian Academy of Sciences (Novosibirsk, Russia) and in the private collection of the second author. The species Aplocera dzungarica Vasilenko, 1995, stat. resurr. is resurrected from subspecies to species. Diagnostic characters of the rare species Lycia degtjarevae Viidalepp, 1986 are summurized and differences from the alied species L. hirtaria (Clerck, 1759) are given. We established that the first species occurs in Central and Southern Kazakhstan, while reliable records of the latter one is known only from northern part of the country. Data on records of Xanthorhoe asiatica (Staudinger, 1882) and X. tauaria (Staudinger, 1892) on the territory of Russia belong to X. insperata (Djakonov, 1926) and X. dudkoi Vasilenko, 2009, respectively. A brief characteristics of the ecological structure of the geometrid fauna of Dzungarian Alatau is proposed. Features of species distribution on this territory are summurize
Rheological properties of granular materials: critical parameters and mixing rules
No full textGranular materials can be found at any stage of processing in many industries, such as food, pharmaceuticals, catalysts, and chemicals. These materials exhibit a variety of flow patterns, and their state and behavior differ from application to application. Since there is a lack of fundamental understanding of particulate or powder behavior, multiple problems can be encountered during routine manufacturing. Scale-up can also be a challenge, as the lack of constitutive equations for granular materials forces most scale-up efforts to follow the trial-and-error route. Powder characterization measurements are employed as both a selection tool and a predictive method for the material's process performance. Therefore, it plays a very important role in process and product development. The numerous existing methods used to characterize the flow properties of powders are mostly application-specific and it is not clear how they correlate with each other or with process performance. Moreover, understanding the relationships between the material properties and the processing conditions is necessary for a successful design of a continuous manufacturing system, which has been a major focus for pharmaceutical industry in the recent years. Before such changes can be implemented, a better understanding of fundamental physical phenomena governing powder flow behavior must be developed. In this work we study particulate/powder flow behavior experimentally using several characterization methods, including the Gravitational Displacement Rheometer (an avalanching tester), the rotational shear cell, and the compressibility tester. We establish the variables of interest through correlative comparison and study the differences and similarities between the methods in order to investigate particulate/powder flow behavior during processing and characterization. A mixing rule for principal stresses is developed through investigation of shear behavior of binary mixtures in a shear cell. In order to better understand the mixing rule the relationship between the particle-particle contact density and measured stresses in a powder bed is explored with DEM simulations. Powder testing methodologies were applied to a case study where the efficiency of the catalyst dry impregnation process was analyzed. As a result, predictive rules and characterization guidelines were developed for different powder systems subjected to various processing conditions.Ph. D.Includes bibliographical referencesby Alisa Victoria Vasilenk
Influence of experimental metabolic syndrome on bioimpedance spectroscopy indicators of rat body
No full textIvanenko T., Hrekova T., Abramova T., Shiryaeva A., Vasilenko G. Influence of experimental metabolic syndrome on bioimpedance spectroscopy indicators of rat body. Journal of Education, Health and Sport. 2021;11(08):470-479. eISSN 2391-8306. DOI http://dx.doi.org/10.12775/JEHS.2021.11.08.053
https://apcz.umk.pl/JEHS/article/view/JEHS.2021.11.08.053
https://zenodo.org/record/5559742
The journal has had 5 points in Ministry of Science and Higher Education parametric evaluation. § 8. 2) and § 12. 1. 2) 22.02.2019.
© The Authors 2021;
This article is published with open access at Licensee Open Journal Systems of Nicolaus Copernicus University in Torun, Poland
Open Access. This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium,
provided the original author (s) and source are credited. This is an open access article licensed under the terms of the Creative Commons Attribution Non commercial license Share alike.
(http://creativecommons.org/licenses/by-nc-sa/4.0/) which permits unrestricted, non commercial use, distribution and reproduction in any medium, provided the work is properly cited.
The authors declare that there is no conflict of interests regarding the publication of this paper.
Received: 02.08.2021. Revised: 16.08.2021. Accepted: 31.08.2021.
UDC: 616-008.9-092:616-092-055.1/.2]-073:577.352.2]-092.9
INFLUENCE OF EXPERIMENTAL METABOLIC SYNDROME ON BIOIMPEDANCE SPECTROSCOPY INDICATORS OF RAT BODY
T. Ivanenko, T. Hrekova, T. Abramova, A. Shiryaeva, G. Vasilenko
Zaporizhzhia State Medical University, Zaporozhzhia, Ukraine
[email protected]
Abstract
The objective of this experiment was to establish sex-related differences in the parameters of bioimpedance spectroscopy of the Wistar rat’s bodies in the experimental metabolic syndrome (endocrine-salt model).
Sexual dependencies of bioimpedance measurements in intact animals have been determined for the first time: males have higher amount of total fluid, but lower one of total fat. The intra/extracellular fluid balance in males is characterized with ratio 2:1, while in females is the other one - 1:1.
For the first time the formation of the metabolic syndrome has already been determined on the seventh day in females which lead to decreasing in the percentage of total fat and to changing of the intra / extracellular fluid balance to ‘male’ type - 2:1. The last one should be considered as a sign of intracellular hyperhydration. In males the examined parameters have been being within the control values throughout 21 days of experiment.
Key words: bioimpedance spectroscopy; sex-related differences; metabolic disorders; corticosteroids; rats
Number-theoretic algorithms in cryptography
No full textAlgorithmic number theory is a rapidly developing branch of number theory, which, in addition to its mathematical importance, has substantial applications in computer science and cryptography. Among the algorithms used in cryptography, the following are especially important: algorithms for primality testing; factorization algorithms for integers and for polynomials in one variable; applications of the theory of elliptic curves; algorithms for computation of discrete logarithms; algorithms for solving linear equations over finite fields; algorithms for performing arithmetic operations on large integers. The book describes the current state of these and some other algorithms. It also contains extensive bibliography. For this English translation, additional references were prepared and commented on by the author
ВДОСКОНАЛЕННЯ СИСТЕМ УСУНЕННЯ ЛЬОДОУТВОРЕННЯ НА ЕЛЕМЕНТАХ КОНСТРУКЦІЇ ВЕРТОЛЬОТУ
No full textThe subject of study in the article is approaches to improving the system of protection of structural elements of a military transport helicopter from ice formation. The goal of the work is to develop proposals for improving the most energy-intensive system of the aviation equipment of a military transport helicopter, namely, an anti-icing system based on an analysis of as many of its components as possible. The following tasks are solved in the article: analysis of modern anti-icing systems (primarily those used in industrial plants and foreign helicopters), development of a backup system for heating the cockpit glass, development of a non-contact method of transferring electricity to the heating elements of the propeller blades, development of block diagram automatic control of the anti-icing system. The following methods are used: comparative analysis, methods of applied hydrodynamics and electromechanics. The following results were obtained: specific requirements for helicopter ice protection systems were formulated, a liquid cockpit glass washing system was proposed as a backup system for electric heating, a control system scheme for a 6-section anti-icing system using a combined ice formation warning device was introduced. Conclusions: the introduction of a fully automatic ice removal system as a part of the helicopter’s aviation equipment, which significantly relieves the crew, necessarily involves the use of an integrated sensor (group of meters). This will allow the system to respond not only to the appearance of a certain layer of ice on a sensitive surface, but also to environmental parameters at which such a dangerous phenomenon as icing of helicopter structural elements may occur. Modernization of the anti-ice formation system on the elements of the helicopter structure will be effective only with a comprehensive approach to the improvement of all its components together with the development of duplicate ice removal systems.Предметом исследования в статье являются подходы по совершенствованию системы защиты элементов конструкции военно-транспортного вертолета от образования льда. Цель работы – разработка предложений по совершенствованию наиболее энергоемкой системы из состава авиационного оборудования военно-транспортного вертолета, а именно противообледенительной системы на основе анализа как возможно большего числа ее компонентов. В статье решаются следующие задачи: анализ современных систем борьбы с обледенением (прежде всего тех, что используются в промышленных установках, и на зарубежных вертолетах), разработка дублирующей системы обогрева стекла кабины экипажа, разработка бесконтактного способа передачи электроэнергии на нагревательные элементы лопастей винтов, разработка структурной схемы автоматического управления противообледенительной системой. Используются следующие методы: сравнительный анализ, методы прикладной гидродинамики и электромеханики. Получены следующие результаты: сформулированы специфические требования к вертолетным системам защиты от льда, предложена жидкостная система омывки стекол кабины экипажа в качестве дублирующей системы для электрообогрева, предложенная схема системы управления 6-ти секционной противообледенительной системой с помощью комбинированного сигнализатора лёдообразования. Выводы: внедрение полностью автоматической системы устранения льда в составе авиационного оборудования вертолета, которая значительно разгрузит экипаж, обязательно предполагает использование в своем составе комплексного датчика (группы измерителей). Это позволит системе реагировать не только на появление определенного слоя льда на чувствительной поверхности, но и на параметры окружающей среды, при которых возможно возникновение такого опасного явления как обледенение элементов конструкции вертолета. Модернизация системы борьбы с образованием льда на элементах конструкции вертолета будет эффективной только при комплексном подходе к совершенствованию всех её составных частей вместе с разработкой дублирующих систем устранения льда.Предметом дослідження в статті є підходи щодо вдосконалення системи захисту елементів конструкції військово-транспортного вертольоту від льодоутворення. Мета роботи – розробка пропозицій стосовно вдосконалення найбільш енергоємної системи зі складу авіаційного обладнання військово-транспортного вертольоту, а саме протизледенільної системи на підставі аналізу як можливо більшого числа її компонентів. В статті вирішуються наступні завдання: аналіз сучасних систем боротьби з обледенінням (насамперед тих, що використовуються в промислових установках, та на закордонних вертольотах), розробка дублюючої системи обігріву скла кабіни екіпажу, розробка безконтактного способу передачі електроенергії на нагрівальні елементи лопатей гвинтів, розробка структурної схеми автоматичного управління протизледенільною системою. Використовуються такі методи: порівняльний аналіз, методи прикладної гідродинаміки та електромеханіки. Отримано наступні результати: сформульовані специфічні вимоги до вертолітних систем захисту від льоду, запропонована рідинна система омивання скла кабіни екіпажу у якості дублюючої системи для електрообігріву, запропонована схема системи управління 6-ті секційною протизледенільною системою за допомогою комбінованого сигналізатора льодоутворення. Висновки: впровадження повністю автоматичної системи усунення льоду у складі авіаційного обладнання вертольоту, яка значно розвантажить екіпаж, обов’язково передбачає використання у своєму складі комплексного датчику (групи вимірювачів). Це дасть можливість системі реагувати не тільки на появу певного шару льоду на чутливій поверхні, а ще й на параметри навколишнього середовища, при яких можливо виникнення такого небезпечного явища як обледеніння елементів конструкції вертольоту. Модернізація системи боротьби з льодоутворенням на елементах конструкції вертольоту буде ефективною лише при комплексному підході до вдосконалення усіх її складових частин разом з розробкою дублюючих систем усунення льоду
Selective recognition of organic pollutants in aqueous solutions with composite imprinted membranes
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