scholarly journals PROFESSOR S.V. KARPEEV IS 60 YEARS OLD

Author(s):  
Eduard I. Kolomiets ◽  

The article presents a summary of scientific and pedagogical activity of a leading researcher of the Institute of Image Processing Systems of Russian Academy of Sciences, Doctor of Physical and Mathematical Sciences, Professor Sergey Vladimirovich Karpeev, a well known expert in the field of computer optics. The celebrant`s contribution to the development of methods of research of diffractive optical elements and the use of computer optics methods to solve a wide range of problems is being analyzed in the article.

2019 ◽  
Vol 14 (1-2) ◽  
pp. 295-297
Author(s):  
Sergej A. Borisov

For more than twenty years, the Institute of Slavic Studies of the Russian Academy of Sciences celebrates the Day of Slavic Writing and Culture with a traditional scholarly conference.”. Since 2014, it has been held in the young scholars’ format. In 2019, participants from Moscow, St. Petersburg, Kazan, Togliatti, Tyumen, Yekaterinburg, and Rostov-on-Don, as well as Slovakia, the Czech Republic, Hungary, and Romania continued this tradition. A wide range of problems related to the history of the Slavic peoples from the Middle Ages to the present time in the national, regional and international context were discussed again. Participants talked about the typology of Slavic languages and dialects, linguo-geography, socio- and ethnolinguistics, analyzed formation, development, current state, and prospects of Slavic literatures, etc.


2021 ◽  
Vol 11 (14) ◽  
pp. 6246
Author(s):  
Paweł Komorowski ◽  
Patrycja Czerwińska ◽  
Mateusz Kaluza ◽  
Mateusz Surma ◽  
Przemysław Zagrajek ◽  
...  

Recently, one of the most commonly discussed applications of terahertz radiation is wireless telecommunication. It is believed that the future 6G systems will utilize this frequency range. Although the exact technology of future telecommunication systems is not yet known, it is certain that methods for increasing their bandwidth should be investigated in advance. In this paper, we present the diffractive optical elements for the frequency division multiplexing of terahertz waves. The structures have been designed as a combination of a binary phase grating and a converging diffractive lens. The grating allows for differentiating the frequencies, while the lens assures separation and focusing at the finite distance. Designed structures have been manufactured from polyamide PA12 using the SLS 3D printer and verified experimentally. Simulations and experimental results are shown for different focal lengths. Moreover, parallel data transmission is shown for two channels of different carrier frequencies propagating in the same optical path. The designed structure allowed for detecting both signals independently without observable crosstalk. The proposed diffractive elements can work in a wide range of terahertz and sub-terahertz frequencies, depending on the design assumptions. Therefore, they can be considered as an appealing solution, regardless of the band finally used by the future telecommunication systems.


2021 ◽  
Vol 49 (2) ◽  
pp. 155-163
Author(s):  
S. M. Shapovalov

March 15, 2021 Chief Researcher, Head of the Laboratory of Hydrological Processes of the P.P. Shirshov Institute of Oceanology of the Russian Academy of Sciences, DSc, ex-president of the International Association for Physical Ocean Sciences (IAPSO) Evgeny Morozov is 75 years old. E.G. Morozov is a prominent scientist and organizer of world-class science in the field of studying the temporal and spatial variability of hydrological processes and internal waves in a wide range of scales. He was the first to build a map of the amplitudes of tidal internal waves of the World Ocean. His monograph “Oceanic Internal Waves” published in 1985 in Russian, as well as his article “Semidiurnal internal wave global field”, published in the Deep Sea Research in 1995, are among the most cited on the problem of internal tidal waves. Unique results were obtained by E.G. Morozov in the study of internal waves in the Arctic, including under the ice and near the front of glaciers sliding into the ocean on Spitsbergen. He made a significant contribution to the study of various currents: the Gulf Stream, the Kuroshio and their rings, the Antarctic Circumpolar Current, the California Current, the Falkland Current, the Lomonosov and Tareev subsurface equatorial currents. Since 1999 he has been a member of the Executive Committee of the International Association for the Physical Sciences of the Ocean (IAPSO) and since 2011 he has been elected President of the IAPSO, represented the IAPSO in this capacity on the Executive Committee of the International Geodetic and Geophysical Union (IUGG) and on the Executive Committee of the Scientific Committee on Oceanic research (SCOR). E.G. Morozov is the chairman of the Ocean Physical Sciences Section of the National Geophysical Committee of the Russian Academy of Sciences.


2021 ◽  
pp. 140-155
Author(s):  
Л.Д. БОНДАРЬ ◽  
Р Ш ЗЕЛЬНИЦКАЯ (ШЛАРБА)

Настоящая статья предлагает публикацию очерка подготовленного известным осетиноведом Евгенией Георгиевной Пчелиной (1895–1972) и до сегодняшнего дня остававшегося не опубликованным. Рукопись не завершена полностью и хранится в архивном фонде Е.Г. Пчелиной в Санкт-Петербургском филиале Архива РАН (фонд № 1017). Рукопись состоит из 11 листов, ее научный аппарат составлен на отдельных карточках. Изучение архивного материала позволило сформировать относительно завершенный очерк и частично восстановить научный аппарат к нему. Текст посвящен вопросу рабства и продажи в плен в традиционном осетинском обществе и был написан для докторской диссертации, которую Пчелина готовила в течение ряда лет, но защита которой так и не состоялась. Удалось восстановить круг научных работ и источниковую базу, на основе которых был написан этот очерк Пчелиной. В статье предложена датировка этой работы – не позднее 1953 г. В публикуемом очерке Пчелиной изложены вопросы осетинской терминологии по изучаемой проблеме, описаны категории рабов, отношение в обществе к разным категориям рабов, способы пленения и доставки в дома пленных, невольничьи рынки на территории Осетии и соседних земель, стоимость рабов и др. Это исследование содержит все те черты, которые являются характерными для научного творчества Пчелиной: прекрасное знание научных работ и использование широкого круга источников, с обязательным обращением к фольклорному материалу и сведениям, полученным от информантов. This article proposes the publication of an essay written by the famous scholar of Ossetian studies Evgenia Georgievna Pchelina (1895–1972); this work has remained unpublished until today. The manuscript is not fully completed and is kept in the archive fund of E.G. Pchelina in the St. Petersburg Branch of the Archive of the Russian Academy of Sciences (fond No. 1017). The manuscript consists of 11 sheets, its scientific apparatus is compiled on separate cards. The study of archival material made it possible to form a relatively complete text of the essay and partially restore the scientific apparatus to it. The text is devoted to the issue of slavery and captivity in the traditional Ossetian society and was written for a doctoral dissertation, which Pchelina had been preparing for a number of years, but the defense of which has never taken place. It was possible to restore the range of scientific works and the source base used by Pchelina for this essay. The article suggests the dating of this work – no later than 1953. In the essay by Pchelina under consideration, the issues of Ossetian terminology on the studied problem is presented, the categories of slaves, the attitude in society to different categories of slaves, methods of captivity and delivery to the homes of prisoners, slave markets on the territory of Ossetia and neighboring lands, the cost of slaves, etc. are described. This work of Pchelina contains all the features that are characteristic of her scientific creativity: excellent knowledge of scientific works and the use of a wide range of sources, with mandatory reference to folklore material and data received from informants.


2021 ◽  
Vol 49 (3) ◽  
pp. 133-146
Author(s):  
V. G. Neiman ◽  
N. N. Korchagin ◽  
A. P. Mirabel

July 2, 2021 marks the 100th anniversary of the birth of Andrei S. Monin, Academician of the Russian Academy of Sciences, corresponding member of the USSR Academy of Sciences (since 1972), Director of the P.P. Shirshov Institute of Oceanology of the Russian Academy of Sciences in 1965–1987, a world-famous outstanding Soviet and Russian scientist in the field of Earth and Ocean sciences. The article highlights the main fundamental scientific results obtained by this scientist as a result of his many years of research on a wide range of problems of hydromechanics, dynamics of the earth's interior, planetology, atmospheric physics, and first of all, gives a high assessment of his capital contribution to domestic and world oceanology.


2020 ◽  
Vol 238 ◽  
pp. 05002
Author(s):  
Julian Wüster ◽  
Patrick Feßer ◽  
Arne Behrens ◽  
Stefan Sinzinger

Subwavelength-structures with different fill factors in the lateral dimensions result in unique phase shifts for the different polarization states of transmitted light. By using this additional degree of freedom for diffractive optical elements, we yield additional functionalities for compact optical systems with DOEs. As a fully operable example we present a binary subwavelength-grating which acts as a polarizing beamsplitter for TE- and TM-polarization over a wide range of incidence angles. We show our design approach, the manufacturing process with Soft-UV-Nanoimprint-Technology, as well as experimental results. We will also lay out possibilities for the design and application of multilevel polarization-functionalized gratings.


2020 ◽  
Vol 48 (2) ◽  
pp. 173-179
Author(s):  
Yu. A. Goldin ◽  
D. I. Glukhovets

The article is dedicated to the anniversary of Oleg Viktorovich Kopelevich, Head of the Ocean Optics Laboratory of the Shirshov Institute of Oceanology of the Russian Academy of Sciences, Doctor of Physical and Mathematical Sciences. The article describes his contributions into the development ocean optics, as well as his organizational and teaching activities.


Author(s):  
Tatyana P. Filippova ◽  
◽  
Nina G. Lisevich ◽  

On the basis of a wide range of sources, the research analyzes the history of the study of permafrost in the territory of the European Northeast of Russia in the first half of the 20th century. The documentary sources revealed in the Archive of the Russian Academy of Sciences (Moscow), the National Archive of the Komi Republic (Syktyvkar), the Scientific Archive of the Komi Science Center of the Ural Branch of the Russian Academy of Sciences (Syktyvkar), the Vorkuta Museum and Exhibition Center (Vorkuta) are introduced into the scientific use for the first time. The 1920s became the period of the birth of a new scientific direction – permafrostology. This science gave an impetus to the systematic study and development of the North and the Arctic. The beginning of systematic geocryologic studies was connected with the development of the European Northeast in the 1920s–1930s. It has been determined that the USSR Academy of Sciences played the leading role in carrying out these studies: it organized special scientific expeditions for studying the cryolithozone of this region. The main results of the studies and their motives interconnected with the government’s interests in the development of valuable northern mineral resources are shown. The results of the expeditions were conclusions about the possibility of constructing large industrial facilities in the regions of the explored reserves of natural raw material resources. Following scientists’ recommendation, the industrial development of the Pechora coal basin and the colonization of the polar region began. The climatic and natural features of the region demanded stationary scientific research in the field of design and construction. The Vorkuta Research Permafrost Station (VRPS) (1936–1958), created under the supervision of the USSR Academy of Sciences, began to carry out this research. Today, the history of this station’s activities is poorly studied. The article presents the main directions of VRPS research: engineering permafrostology and general issues of permafrost studies. The staff of the station were researchers of the Committee on Permafrost Studies of the USSR Academy of Sciences and scientists from among prisoners of GULAG. The role of the staff who made a great contribution to permafrost studies is shown. Under the leadership of the scientists of the station, on the basis of their techniques, large industrial structures of Vorkuta District and Vorkuta, among them the first railroad in the conditions of permafrost, were designed. The conclusion is drawn on the leading role of scientists of the USSR Academy of Sciences in carrying out studies of permafrost soil in the European Northeast in the first half of the 20th century which became the basis in the successful solution of construction problems in the Arctic territory.


2021 ◽  
Vol 49 (3) ◽  
pp. 171-178
Author(s):  
A. B. Zubin ◽  
V. T. Paka

This article publishes the memoirs about Andrei Sergeevich Monin – an outstanding scientist in geophysics, oceanologist, public figure, doctor of physical and mathematical sciences (1956), professor (1963), academician of the Russian Academy of Sciences (2000), director of the of the Shirshov Institute of oceanology of RAS in 1965–1987. A.S. Monin was not only a brilliant scientist (theoretician and practitioner), not only a talented leader and organizer of scientific research, which made it possible to bring oceanology in our institute, and in the country as a whole, to a new – higher – level, but also an interesting, outstanding person. Personality with a capital letter. And we, the authors of this article, are proud that we knew Andrei Sergeevich personally and worked with him.


Sign in / Sign up

Export Citation Format

Share Document