Документы 31 - 40 из 8363
31.

Количество страниц: 8 с.

The group composition of asphaltene-resin-paraffin deposits (ARPD) in the Irelyakh field and their solubility in the composite solvents on the hexane base with the additives consisting of nonionic surface-active substances (NSAS) and concentrates of aromatic hydrocarbons is determined. The results of the investigations show that the additives Neonol AF-9-10 and liquid products of pyrolysis (LPP) are most efficient. The use of these additives allows to increase the efficiency of ARPD breaking and dissolving by 1,3 – 1,6 times as compared with a base solvent. It is shown that the increase in the concentration of individual additives from 0,5 to 3 % causes a decrease in the efficiency of detergent compounds.

Ivanova, I. K. Hydrocarbon solvents on the hexane base for oil organic deposits elimination of the irelyakh gas and oil field / Izabella K. Ivanova, Elena Yu. Shitz // Нефтегазовое дело. - 2008, N 1. - С. 9.

32.

Количество страниц: 8 с.

The process of the paraffin type asphaltene-resin-paraffin deposits dissolution in the alkane base gas condensate, hexane-benzene mixture (HBM) and hexane at 10 and 25°C is investigated. These deposits are formed during oil production in the Irelyakh field. The comparative effectiveness evaluation of studied solvents is performed by the widely used in practice "baskets" method and the results of kinetic studies.

Ivanova, I. K. Use of a kinetic study for the effectiveness evaluation of asphaltene-resin-paraffin deposits (ARPD) solvents / I. K. Ivanova, E. Yu. Shitz // Нефтегазовое дело. - 2012, N 3. - С. 353-359.

33.

Количество страниц: 10 с.

Актуальность статьи определяется тем, что ее тема находится в русле работ отечественных исследователей творчества В. Г. Короленко Н. Н. Закировой, С. Л. Скопкаревой, А. В. Труханенко, В. Н. Крылова, Е. Г. Савельевой, посвященных проблеме организации пространства и времени в творчестве писателя. Методологической базой исследования послужили труды М. М. Бахтина, Ю. М. Лотмана. Целью работы является выявление своеобразия хронотопа в рассказе "Сон Макара" и повести "Без языка". Отмечается, что в обоих произведениях автор обращается к хронотопу дороги и дорожных встреч. Если в рассказе "Сон Макара" хронотопу Амги противопоставляется пространство и время загробного мира, то в повести "Без языка" хронотоп Нью-Йорка представлен в оппозиции к хронотопу родных героям Лозищей. В обоих произведениях можно констатировать "лиминальное" состояние героя - "обмирание" Макара, его "сон" и состояние Матвея Лозинского на пороге смерти в парке Нью-Йорка.

Ivanova, O. I. Organization of space and time in the story "Makar’s Dream" and the story "Without Language" by V. G. Korolenko / O. I. Ivanova ; M. K. Ammosov North-Eastern Federal University // Вестник Северо-Восточного федерального университета им. М. К. Аммосова. Серия: Серия "Вопросы национальных литератур". - 2023. - N 4 (12). - С. 14-23. - DOI: 10.25587/2782-6635-2023-4-14-23
DOI: 10.25587/2782-6635-2023-4-14-23

34.

Количество страниц: 6 с.

This paper uses the plasma data from Cluster and TC-1 and geomagnetic data to study the geomagnetic signatures of current wedge produced by fast-flow braking in the plasma sheet. The three fast flows studied here occurred in a very quiet background and were accompanied by no (or weak) particle injections, thus avoiding the influences from other disturbances. All the geomagnetic signatures of a substorm current wedge can be found in geomagnetic signatures of a current system produced by the braking of fast flows, indicating that the fast flows can produce a complete current wedge which contains postmidnight downward and premidnight upward field-aligned currents, as well as a westward electrojet. The Pi2 precursors exist not only at high latitudes but also at midlatitudes. The starting times of midlatitude Pi2 precursors can be identified more precisely than those of high-latitude Pi2 precursors, providing a possible method to determine the starting time of fast flows in their source regions. The AL drop that a bursty bulk flow produces is proportional to its velocity and duration. In three cases, the AL drops are 200 nT, whether a substorm can be triggered depends mainly on the conditions of the braking regions before fast flows. The observations of solar wind before the three fast flows suggest that it is difficult for the fast flows to trigger a substorm when the interplanetary magnetic field Bz of solar wind is weakly southward.

Geomagnetic signatures of current wedge produced by fast flows in a plasma sheet / Jin-Bin Cao, Chunxiao Yan, Malcolm Dunlop, Henri Reme, Iannis Dandouras, Tielong Zhang, Dongmei Yang, Alexey Moiseyev, Stepan I. Solovyev, Z. Q. Wang, A. Leonoviche, N. Zolotukhina, and V. Mishin // Journal of Geophysical Research: Space Physics. – 1978. – 2010 (August), vol. 115, N 8. – P. A08205.

35.

Количество страниц: 4 с.

Long-lasting ground based measurements of a polarization jet (PJ) by the latitudinal chain of ionospheric stations in Yakutia (3 < L < 5; MLT = UT + 9 h) and by 5 subauroral Russian stations were analyzed. A number of cases were found when PJ was recorded simultaneously with energetic ion observations by AMPTE/CCE and INTERBALL 2. The data comparison shows that at least in the considered cases of strong magnetic substorms, PJ was accompanied by strong injection of ions with the energy of ~20-50 keV and intensity of ~10 cm-² c-¹ sr-¹keV-¹. Close to the injection region in the near midnight sector no ion dispersion was observed, but in the evening sector nose events were detected. In accordance with the mechanism suggested by Southwood and Wolf (JGR, 1978, 83, 5227) PJ was observed near the equatorial boundary of energetic ion penetration into the magnetosphere. Measurements by ionosonds at different longitudes show that the westward velocity of the frontt of PJ development is close to the gradient drift velocity of 20 keV ions (forming nose events). Thus, the physical mechanism of PJ formation due to energetic ion injection during a strong substorm burst is experimentally confirmed. Satellite measurements show that in the near midnight sector energetic ions reach the shell L=3.0 in 20-30 minutes after a substorm commencement with AE>500 nT.

Formation of polarization jet during injection of ions into the inner magnetosphere / V. L. Khalipov, Yu. I. Galperin, A. E. Stepanov, E. D. Bondar // Physics of auroral phenomena : proceedings of the 25th annual seminar, Apatity, 26 February – 1 March 2002. – 2002. – P. 43-46.
DOI: 10.1016/S0273-1177(03)00016-4

36.
Автор:
Khusaynova Gulnira Razifovna

Количество страниц: 14 с.

The relevance of this study is due to insufficient study of the peculiarities of the structure of Tatar romantic dastans. The object of the research is romanic dastans featuring Tahir and Zukhra, and Leyla and Majnun, recorded or rewritten by informants in Tatar communities. The study also analyses other Turkic-language variants as well as medieval literary poems were attracted as background phenomenon. The purpose of the article is to consider the structural features of Tatar romanic dastans. In order to achieve this goal, the following tasks were set: the paths and stylistic tools in the Tatar dastans "Tahir and Zuhra" and "Leyla and Majnun" were identified, different variants were compared in terms of their contents and forms. In this article comparative and structural-descriptive research methods were used. The Tatar romanic dastans often use metaphors, epithets, epiphors, hyperbolas, and rhetorical questions. Despite the frequent use of expressive means, folklore variants are inferior to literary versions of these dastans. This is due to the fact that the monuments were simplified, passing from generation to generation.

Khusaynova, G. R. Specifics of the dastan genre structure in variants of “Tahir and Zukhra” and “Leyla and Majnun”: Creative techniques and their forms in Tatar romanic dastans / G. R. Khusaynova ; Северо-Восточный федеральный университет им. М. К. Аммосова // Вестник Северо-Восточного федерального университета им. М. К. Аммосова. Серия "Вопросы национальных литератур". - 2023. - N 1 (9). - С. 42-55.
DOI: 10.25587/litteraesvfu.2023.11.77.006

37.

Количество страниц: 4 с.

Обобщены сведения о современном составе фауны пауков (Araneae) Якутии. Приведены виды из статей по Якутии, опубликованных после обобщающего списка видов [Marusik et al., 1993], а также некоторые номенклатурные изменения. В настоящее время фауна пауков насчитывает 446 видов из 20 семейств; за последние 20 лет 22 вида представлены как новые для региона, пять из них - новые для науки. В северной Якутии для некоторых видов были указаны самые северные точки распространения.

Koponen, S. Current knowledge of spider fauna (Araneae) of Yakutia / S. Koponen, N. K. Potapova, A. P. Burnasheva // Евразиатский энтомологический журнал. – 2014, Т. 13, N 5. – С. 430-433.

38.
Авторы:
Kyuregyan K. K. , Kichatova V.S., Isaeva O. V., Potemkin I. A., Malinnikova E. Y., Karlsen A. A., Mikhailov M. I. , Lopatukhina M. A., Mobarhan A. A., Mullin E. V., Slukinova O.S., Ignateva M. E., Sleptsova Snezhana S., Oglezneva E. E., Shibri kE. V., Isaguliants M. G.

Количество страниц: 15 с.

Coverage with Timely Administered Vaccination against Hepatitis B Virus and Its Influence on the Prevalence of HBV Infection in the Regions of Different Endemicity / K. K. Kyuregyan, V. S. Kichatova, O. V.Isaeva [and etc.] // Vaccines. - 2021. - Т. 9, N 2. - С. 1-15. - DOI: 10.3390/vaccines9020082
DOI: 10.3390/vaccines9020082

39.

Издательство: [s. n.]

Год выпуска: 1988

Количество страниц: 14 с.

The influence of continious CO2-laser processing on structure, composition and microhadness of plasma sprayed Ni-Cr-Si-B, Fe-C-Cr-V, Ni-Al coatings was studied. The change of chemical and phase compositions of the coatings compared with the initial sprayed ones due to alloying with elements of substrate, depending on the processing operation (input power) was determined. Laser processing of plasma sprayed coatings allows to improve substantially their adhesion and in combination with high speed cooling, gives the possibility to regulate the processes of structure formation, dispersion, phase formation, and hence, the properties of forming coatings by means of processing operation.

Laser processing of plasma sprayed coatings / Dr. V. P. Larionov, Cand. N. P. Bolotina, Eng. T. V. Argunova, Cand. V. D. Tyunin, Eng. M. P. Lebedev. — [S. l. : s. n.], 1988. — 6 c.

40.

Количество страниц: 14 с.

Lazarev, N. P. Equilibrium problems for Kirchhoff–Love plates with nonpenetration conditions for known configurations of crack edges / N. P. Lazarev, H. Itou // Математические заметки СВФУ. — 2020. — Т. 27, N 3 (107), июль-сентябрь. — С. 52-65
DOI: 10.25587/SVFU.2020.75.68.005