1,097 research outputs found
Performance of a micro-engineered ultrasonic particle manipulator
No full textAn ultrasonic microfluidic particle manipulator has been modeled and its experimentally measured separation performance has been compared with the modeled results for 1 µm latex particles, and yeast particles in water
Degenerations of 3-dimensional nilpotent associative algebras over an algebraically closed field
No full textWe determine the complete degeneration picture inside the variety of nilpotent associative algebras of dimension 3 over an algebraically closed field of characteristic not equal to 2. Comparing with the discussion in [Ivanova N.M. and Pallikaros C.A., Degenerations of complex associative algebras of dimension three via Lie and Jordan algebras, {\it Advances in Group Theory and Applications}, 18 (2024), 41-79], for some of the arguments in the present article we needed to develop alternative techniques which are now valid over an arbitrary algebraically closed field. There is a dichotomy of cases concerning the results obtained, corresponding to whether the characteristic of the field is 2 or not.In this new version the case where the field has characteristic equal to two is also discusse
Restoration of the Martyn brothers house as a bright example of the work of the architect N.M. Socolow
No full textThe paper discusses the history of the Martyn Brothers House, as well as the practice of restoring this object of cultural heritage of federal significance. The author of the mansion is Nikolai Matveevich Sokolov (1859-1906), the city architect of the late XIX - early XX centuries in Rostov-on-Don. To characterize the measures for the protection and modern practice of restoration of one of the brightest examples of N. M. Sokolov’s creativity – the Martyn Brothers House in Rostov-on-Don. The main method of research was historical analysis - the study of the origin, formation and development of objects in chronological order, as well as archival and full-scale surveys of the object, photo fixation. The characteristic of practice of restoration of works of “brick style” using Martyn Brothers House as a bright example of the work of the architect N.M. Sokolov was given. The mansion is of scientific and practical interest. During the research, the main techniques and methods used in restoration practice that can be used by modern restorers were identified. After the completion of restoration work on the site of the Martyn Brothers House, the original historical and architectural appearance of the magnificent monument of the late XIX century was restored, taking into account all the lost parts of the building
Religious and philosophical psychology in the works of N.M. Bogolyubov
No full textWe present the results of historical and psychological research filling the gaps of contemporary knowledge about personalities of religious and philosophical direction of Russian psychology in late XIX – early XX centuries. The author introduces the biography of events and the views of Russian psychologist N.M. Bogolyubov – a man of uneasy fate, embodied in his work the idea of spiritual practice in the analysis and description of a person's inner world. Psychological works of N.M. Bogolyubov reflect the views common for Russian spiritual direction in psychology: consideration of man's inner world by revealing how mental experience is given to the person, his self, recognition of the soul as a sphere of inner reality, recognition of the mental world of a person as an independent entity, living by its own laws, which do not depend on the laws of the material world, asserting that faith can be a valid knowledge. In the arsenal of creative achievements of N.M. Bogolyubov are determination of the value of psychology in studying the problem of religious consciousness and professionalism as a necessary quality of a researcher psychologist in the field
An improved thick-film piezoelectric material by powder blending and enhanced processing parameters
No full textThis paper details improvements of the d33 coefficient for thick-film lead zirconate titanate (PZT) layers. In particular, the effect of blending ball and attritor milled powders has been investigated. Mathematical modeling of the film structure has produced initial experimental values for powder combination percentages. A range of paste formulations between 8:1 and 2:1 ball to attritor milled PZT powders by weight have been mixed into a screen-printable paste. Each paste contains 10% by weight of lead borosilicate glass and an appropriate quantity of solvent to formulate a screen printable thixotropic paste. A d33 of 63.5 pC/N was obtained with a combination of 4:1 ball milled to attritor milled powder by weight. The improved paste combines the high d33 values of ball and the consistency of attritor milled powder. The measured d33 coefficient was further improved to 131 pC/N by increasing the furnace firing pro-file to 100
Spectral characterisation of shortened pulse position modulation format
No full textShortened pulse position modulation (SPPM) is a new modulation format that has recently been proposed for underwater wireless optical communications. A full spectral characterisation of SPPM is considered and original expressions are presented, which are validated numerically for predicting both the continuous and discrete spectrum
N.M. JADRINTSEV AND ALTAY: RESEARCH ACTIVITIES OF THE PUBLICIST AND HIS ROLE IN THE DEVELOPMENT OF ALTAI PERIODICALS
No full textPurpose. The purpose of this article is to study the role of Nikolai Mikhailovich Yadrintseva in the course of development of the Altai periodicals and its research and statistical activities in the Altai.
Methodology. When writing the article were used General scientific methods like analysis, comparison, generalization.
Results. As a result, the author analyzed the research, ethnographic and statistical activities of Nikolai Mikhailovich Yadrintsev in the Altai. Visiting with the research mission Altai, N.M. Yadrintsev published grandiose essays and articles not only about the ethnographic side of the Altaian “aliens”, but also was able to give his inhabitants a map of the locality and a detailed description of meteorological observations. The role of N.M. Yadrintsev in the development of the Altai periodicals and gives a general description of the newspaper “Eastern Review” under his leadership. Despite the fact that publications on behalf of N.M. Yadrintsev in the Altai were not preserved, with the exception of a small quatrain, he managed to raise the provincial periodicals to a completely new level. Together with Siberian correspondents, he was able to inspire a whole generation, as a result of which universities, museums and numerous Siberian publishing houses began to develop in the cities of Siberia. With the arrival of Nikolai Mikhailovich in the Altai, the periodical press noticeably developed and strengthened.
Practical implications. The article can be used in the teaching of local history, the history of Russia and Russian journalism
Theoretical and phenomenological aspects of studying the transformation of military personality as the result of combat trauma
No full textО ИМИТАЦИОННОМ МОДЕЛИРОВАНИИ СТАЦИОНАРНЫХ ХАРАКТЕРИСТИК НАДЕЖНОСТИ СИСТЕМЫ K-OUT-OF-N С ОБЩИМ РАСПРЕДЕЛЕНИЕМ РЕСУРСА И ВРЕМЕНИ РЕМОНТА
No full textThe problem of sensitivity of a redundant system's probability characteristics to shapes of their input distributions is considered. In some previous works, closed form representations for reliability characteristics of hot redundant systems with exponential distribution of their elements lifetime and general distribution of their repair time have been found. To solve the current problem of sensitivity in the recent paper this research is extended with the help of simulation method to a general case of both non-exponential distributions. Constructing the simulation model of a k-out-of-n system in AnyLogic environment we can obtain sensitivity analysis of the considered system.В статье рассматривается проблема чувствительности вероятностных характеристик избыточной системы к формам их входных распределений. В некоторых предыдущих работах были найдены представления в замкнутой форме для характеристик надежности систем с горячим резервированием с экспоненциальным распределением времени жизни их элементов и общим распределением времени их ремонта. Чтобы решить текущую проблему чувствительности в недавней статье, это исследование расширено с помощью метода моделирования до общего случая обоих неэкспоненциальных распределений. Мы можем получить анализ чувствительности рассматриваемой системы, построив имитационную модель системы k-out-of-n в среде AnyLogic
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