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One-pot synthesis and the structure study of a new indoline spiropyran with cationic substituent 一种新型阳离子取代吲哚类螺吡喃的一锅合成及结构研究
Доклады Академии наук Pub Date : 2019-10-20 DOI: 10.31857/s0869-56524885498-503
A. D. Pugachev, A. S. Kozlenko, M. B. Lukyanova, B. Lukyanov, V. Tkachev, G. Shilov, O. Demidov, V. Minkin, S. Aldoshin
{"title":"One-pot synthesis and the structure study of a new indoline spiropyran with cationic substituent","authors":"A. D. Pugachev, A. S. Kozlenko, M. B. Lukyanova, B. Lukyanov, V. Tkachev, G. Shilov, O. Demidov, V. Minkin, S. Aldoshin","doi":"10.31857/s0869-56524885498-503","DOIUrl":"https://doi.org/10.31857/s0869-56524885498-503","url":null,"abstract":"One-pot synthesis and the structure study of a new salt spiropyran of indoline series containing 2H-chromenic vinyl-3H-indolium fragment as a substituent at the position 8 are described. The structure was confirmed by the method of NMR 1H and 13C spectroscopy, IR and high-resolution mass spectrometry. The single crystals of the compound were investigated by X-ray analysis. The structure was compared with the previously known isostructural analogue [10].","PeriodicalId":24047,"journal":{"name":"Доклады Академии наук","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79547135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nikmelnikovite, Ca12Fe2+Fe3+3Al3(SiO4)6(OH)20, a new mineral from Kovdor massif (Kola peninsula, Russia) nimelnikovite, Ca12Fe2+Fe3+3Al3(SiO4)6(OH)20，俄罗斯科拉半岛科夫多尔地块新矿物
Доклады Академии наук Pub Date : 2019-10-20 DOI: 10.31857/s0869-56524885526-529
S. V. Krivovichev, V. Yakovenchuk, T. Panikorovskii, E. Savchenko, Y. Pakhomovsky, Y. Mikhailova, E. Selivanova, G. I. Kadyrova, G. Ivanyuk
{"title":"Nikmelnikovite, Ca12Fe2+Fe3+3Al3(SiO4)6(OH)20, a new mineral from Kovdor massif (Kola peninsula, Russia)","authors":"S. V. Krivovichev, V. Yakovenchuk, T. Panikorovskii, E. Savchenko, Y. Pakhomovsky, Y. Mikhailova, E. Selivanova, G. I. Kadyrova, G. Ivanyuk","doi":"10.31857/s0869-56524885526-529","DOIUrl":"https://doi.org/10.31857/s0869-56524885526-529","url":null,"abstract":"Nikmelnikovite, Ca12Fe2+Fe3+3Al3(SiO4)6(OH)20, is a new mineral from the Kovdor massif, Kola peninsula, Russian Federation. It is the first trigonal member of the garnet supergroup. The mineral is named in honor of Academician Nikolay Nikolaevich Melnikov (1938-2018), an outstanding Soviet and Russian mining engineer, long-time (1981-2015) director of the Mining Institute of the Kola Science Center, Russian Academy of Sciences.","PeriodicalId":24047,"journal":{"name":"Доклады Академии наук","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73705325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mobility of radiogenic isotopes 4He and 3He and their retention in a mineral (using amphibole as an example) 放射性成因同位素4He和3He的迁移率及其在矿物中的保留(以角闪洞为例)
Доклады Академии наук Pub Date : 2019-10-20 DOI: 10.31857/s0869-56524885517-520
A. Gudkov, А.В. Гудков, V. Kolobov, В.В. Колобов, S. Tarakanov, С.В. Тараканов, I. Tolstikhin, И.Н. Толстихин
{"title":"Mobility of radiogenic isotopes 4He and 3He and their retention in a mineral (using amphibole as an example)","authors":"A. Gudkov, А.В. Гудков, V. Kolobov, В.В. Колобов, S. Tarakanov, С.В. Тараканов, I. Tolstikhin, И.Н. Толстихин","doi":"10.31857/s0869-56524885517-520","DOIUrl":"https://doi.org/10.31857/s0869-56524885517-520","url":null,"abstract":"Studies of 40Ar and 4He mobility in minerals (performed for isotope geochronometry problems) generally assumed that the migration parameters, obtained for the atoms preserved in a mineral, described the mobility of all atoms that were produced in the mineral, including those that were lost in the past. To test this assumption, an analysis of the U-Th-Li-4He-3He isotope system in amphiboles, separated from alkaline granites of the Ponoi massif, Kola Peninsula, was performed. The retention of He isotopes was determined, i.e., the ratio of the amount of radiogenic He remaining in a mineral to its amount, which should have been accumulated since the formation (metamorphism) of the mineral. It turned out that 36% of 3He and only 14% of 4He were preserved in the mineral. The results of experiments on 3He and 4He migration from amphibole grains during their step wise heating in vacuum were successfully approximated by a diffusion model. However, the parameters, obtained during the simulations, did not allow reproducing the above retentions of He isotopes. The mechanisms of 3He and 4He migration in the past, which have led to such different retentions, differ from the diffusion mechanism, which adequately describes migration of the atoms remaining in the mineral.","PeriodicalId":24047,"journal":{"name":"Доклады Академии наук","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86111319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
On the added mass in a viscous incompressible fluid 粘性不可压缩流体中增加的质量
Доклады Академии наук Pub Date : 2019-10-20 DOI: 10.31857/s0869-56524885493-497
G. Dynnikova
{"title":"On the added mass in a viscous incompressible fluid","authors":"G. Dynnikova","doi":"10.31857/s0869-56524885493-497","DOIUrl":"https://doi.org/10.31857/s0869-56524885493-497","url":null,"abstract":"It is proved that at the same instantaneous distribution of the flow velocity of a viscous incompressible fluid, the forces acting on a body moving with acceleration differ from forces acting on the body moving with constant velocity by a vector, which is equal to the added masses tensor multiplied by the acceleration vector. The tensor of the added masses coincides with the tensor calculated for potential flows with the same geometry of the body and surrounding surfaces, and does not depend either on viscosity or on the distribution of vorticity in the flow space. While the force corresponding to the motion with constant velocity depends on the history of movement.","PeriodicalId":24047,"journal":{"name":"Доклады Академии наук","volume":"37 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87697668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Correct solvability and representation of the solutions of Volterra integro-differential equations with exponential-fractional kernels 具有指数分数核的Volterra积分微分方程解的正确可解性和表示
Доклады Академии наук Pub Date : 2019-10-20 DOI: 10.31857/s0869-56524885476-480
V. V. Vlasov, N. Rautian
{"title":"Correct solvability and representation of the solutions of Volterra integro-differential equations with exponential-fractional kernels","authors":"V. V. Vlasov, N. Rautian","doi":"10.31857/s0869-56524885476-480","DOIUrl":"https://doi.org/10.31857/s0869-56524885476-480","url":null,"abstract":"For abstract integro-differential equations with unbounded operator coefficients in a Hilbert space, we study the well-posed solvability of initial problems and carry out spectral analysis of the operator functions that are symbols of these equations. This allows us to represent the strong solutions of these equations as series in exponentials corresponding to points of the spectrum of operator functions. The equations under study are the abstract form of linear integro-partial differential equations arising in viscoelasticity and several other important applications.","PeriodicalId":24047,"journal":{"name":"Доклады Академии наук","volume":"74 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85404103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Estimation of the accumulation of impurity chromium ions in CaSiO3 and MgSiO3 earth mantle phases at pressures 18-25 GPa 18- 25gpa压力下CaSiO3和MgSiO3地幔相中杂质铬离子积累的估算
Доклады Академии наук Pub Date : 2019-10-20 DOI: 10.31857/s0869-56524885530-533
E. Marchenko, Е И Марченко, N. Eremin, Александр Викторович Бобров, A. Bobrov, Н Н Еремин
{"title":"Estimation of the accumulation of impurity chromium ions in CaSiO3 and MgSiO3 earth mantle phases at pressures 18-25 GPa","authors":"E. Marchenko, Е И Марченко, N. Eremin, Александр Викторович Бобров, A. Bobrov, Н Н Еремин","doi":"10.31857/s0869-56524885530-533","DOIUrl":"https://doi.org/10.31857/s0869-56524885530-533","url":null,"abstract":"Based on the data of atomistic modeling, various schemes of the isomorphic occurrence of Cr3+ ions in the crystal structures of CaSiO3 and MgSiO3 in the pressure range 18-25 GPa and temperatures of 1873-2223 K were analyzed. Under these PT-parameters, the content of Cr3+ in structures under investigation was estimated. The semiempirical simulation data are in good agreement with the results of experiments.","PeriodicalId":24047,"journal":{"name":"Доклады Академии наук","volume":"387 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78028007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bol’shoi Ilek as the ilek formation stratotype of the Lower Cretaceous, and the new dinosaur and mammoth faunae site in the south-east of Western Siberia Bol 'shoi Ilek作为下白垩纪Ilek地层的层型，以及西伯利亚西部东南部新的恐龙和猛犸象动物群遗址
Доклады Академии наук Pub Date : 2019-10-20 DOI: 10.31857/s0869-56524885513-516
S. V. Leshchinskiy, A. Fayngerts, S. Ivantsov
{"title":"Bol’shoi Ilek as the ilek formation stratotype of the Lower Cretaceous, and the new dinosaur and mammoth faunae site in the south-east of Western Siberia","authors":"S. V. Leshchinskiy, A. Fayngerts, S. Ivantsov","doi":"10.31857/s0869-56524885513-516","DOIUrl":"https://doi.org/10.31857/s0869-56524885513-516","url":null,"abstract":"The geological section of Bolshoi Ilek (up to 83 m high), southeast of Western Siberia, represented by Cretaceous and Quaternary systems has been reassessed. Its major part is composed with the Lower Cretaceous deposits of deltic genesis that reached 80 m thickness and characterized the Ilek Formation stratotype. During the screen washing of sand fraction the remains of fishes, lizards, turtles, crocodiloformes, dinosaurs, and mammals, typical for the Barremian - Lower Albian, have been revealed. Mesozoic strata are covered by eolian-deluvial and eluvial Quaternary deposits from 3 to 13,5 m. Three layers with mammoth fauna remains were distinguished there. The middle one is dated by 14С as ~ 22500 years ago. The observation have revealed that Bolshoi Ilek is a large landslide more than 1 square kilometre area. All of it allowed to compare it with the coeval section of Shestakovo outcrop that also exposes the part of giant landslide, caused by earthquakes more than 9 points by Richter scale, which indicates a powerful seismic event, occurred in the southeast of region at the very end of Pleistocene.","PeriodicalId":24047,"journal":{"name":"Доклады Академии наук","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87092062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
On the contribution of climatic and anthropogenic factors to changes in the flow of large rivers of the Russian plain and Siberia 气候和人为因素对俄罗斯平原和西伯利亚大河流量变化的影响
Доклады Академии наук Pub Date : 2019-10-20 DOI: 10.31857/s0869-56524885539-544
A. Georgiadi, N. Koronkevich, E. Barabanova, E. A. Kashutina, I. Milyukova
{"title":"On the contribution of climatic and anthropogenic factors to changes in the flow of large rivers of the Russian plain and Siberia","authors":"A. Georgiadi, N. Koronkevich, E. Barabanova, E. A. Kashutina, I. Milyukova","doi":"10.31857/s0869-56524885539-544","DOIUrl":"https://doi.org/10.31857/s0869-56524885539-544","url":null,"abstract":"Changes of annual and seasonal flow of Volga, Don, Yenisei and Lena are estimated by two methods. One of them is to restore the natural flow of recent decades, during which there were observed its significant anthropogenic changes. For these purposes, we used data on the runoff of rivers (tributaries of the considered rivers and their upper parts), the water regime of which is relatively weakly changed by the anthropogenic impact. Another uses the data of water management statistics. Subsequently, the data on the naturalized river flow were compared with the anthropogenic-modified runoff for this and for the previous base period, when anthropogenic impact can be neglected. It is shown that climatic and anthropogenic factors perform either unidirectionally, increasing or decreasing the flow, or in opposite directions. Moreover, the impact of anthropogenic factors, mainly of reservoirs and water consumption, is of the same scale as the influence of climatic factors, while in many cases exceeds it.","PeriodicalId":24047,"journal":{"name":"Доклады Академии наук","volume":"92 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76656646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Trace elements of naftides of oil- and gas-bearing basin 含油气盆地naftides微量元素研究
Доклады Академии наук Pub Date : 2019-10-20 DOI: 10.31857/s0869-56524885534-538
S. Punanova, С А Пунанова
{"title":"Trace elements of naftides of oil- and gas-bearing basin","authors":"S. Punanova, С А Пунанова","doi":"10.31857/s0869-56524885534-538","DOIUrl":"https://doi.org/10.31857/s0869-56524885534-538","url":null,"abstract":"The parameters of the concentration distribution of trace elements in the oil fields of oil and gas basins of the world, their physic-chemical properties, as well as the geological and geochemical features of oil formation in these basins were studied. It is shown that the ontogenesis of hydrocarbons associated with deep tectonic transformations (geodynamic factor) controls not only the placement of naphtides in the sedimentary cover, but also the diversity of their metallogenic specialization. The classification of oils of various ontogenesis zones is given in accordance to the degree of their enrichment of mineral elements and their belonging to the vanadium or nickel metallogenic type. The oil, characterized by primary rich concentrations of trace elements of the main zone of oil formation, and oil with initially low concentrations of trace elements in the zones of early generation are presented. The processes of transformation of the composition of oils in the areas of hypergenesis lead to their enrichment, whereas the oil of the catagenesis zone is depleted in trace elements.","PeriodicalId":24047,"journal":{"name":"Доклады Академии наук","volume":"32 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78603202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Changes in water regime of the River Ural basin 乌拉尔河流域水势的变化
Доклады Академии наук Pub Date : 2019-10-20 DOI: 10.31857/s0869-56524885545-549
Z. Sivokhip, V. M. Pavleychik, A. Chibilev
{"title":"Changes in water regime of the River Ural basin","authors":"Z. Sivokhip, V. M. Pavleychik, A. Chibilev","doi":"10.31857/s0869-56524885545-549","DOIUrl":"https://doi.org/10.31857/s0869-56524885545-549","url":null,"abstract":"Based on the analysis of the annual and seasonal variability of river runoff, the specificity of the water regime of the Ural River basin has been determined. It has been established that in recent decades a trend of redistribution of seasonal runoff has been observed, expressed in an increase in the share of runoff during the winter. Based on the analysis of difference integral curves, phases of different water content were revealed; the prevalence of common-mode runoff fluctuations indicates the leading role of climatic factors of runoff formation. An important feature of the rivers regime of the steppe regions is the intra-annual variability of the flow, which forms extreme hydrological situations (low water or high water). The results should be considered when organizing effective and environmentally safe water use in the Ural River basin.","PeriodicalId":24047,"journal":{"name":"Доклады Академии наук","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89494239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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