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Crystal structure and thermal expansion of perovskites containing uranium(VI) and rare-earth elements

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Journal of Rare Earths 2009年第1期27卷 4-11页

作者： Aleksandr knyazev Anna Ershova nikolai Chernorukov nizhny novgorod State University

By the method of high-temperature reactions in solid phase, compounds with the general formula MⅡ（AⅢ2/3U1/3）O3（MⅡ=Sr, AⅢ=Sc, In;MⅡ=Ba, AⅢ=Sc, In, Y, nd-Lu） were *** structures（space groups Fm 3 m and Pnma） were refined by the Rietveld method and morphotropic transition in Ba（Ln2/3U1/3）O3 on the border of Gd-Tb was *** means of high-temperature X-ray diffraction, phase transitions were studied and thermal expansion coefficients were determined.

关键词： perovskite uranium X-ray diffraction Rietveld structure thermal expansion rare earths

Holography with high-power CW coherent terahertz source: optical components, imaging, and applications

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Light(Advanced Manufacturing) 2022年第3期3卷 103-119页

作者： Yulia Choporova Boris knyazev Vladimir Pavelyev novosibirsk State University 630090 NovosibirskRussia Budker Institute of nuclear Physics 630090 NovosibirskRussia Samara national Research University 443086 SamaraRussia Image Processing Systems Institute of the RAS-Branch of the FSRC“Crystallography and Photonics”RAS 443001 SamaraRussia

This paper presents the results of 15 years of studies in the field of terahertz holography at the novosibirsk free electron *** cover two areas:research on obtaining holographic images in the terahertz range and the use of diffractive optical elements to form high-power terahertz radiation fields with specified characteristics(intensity,phase,and polarization),using well-studied and widely applied in the optical range methods of optical(analog),digital,and computer-generated *** experiments were performed with the application of high-power coherent monochromatic frequency-tunable radiation from the novosibirsk free electron *** features of hologram registration in the terahertz range are ***,technologies,and optical materials for terahertz holographic elements are discussed.A wide range of promising applications of high-power terahertz fields with a given spatial structure is *** results of the study of terahertz holograms recorded as digital holograms,as well as radiation-resistive optical elements realized as computer-synthesized holograms,are presented.

关键词： Terahertz range Holography Diffractive optical elements Imaging,Free electron laser

CVD生长多壁碳纳米管的拉曼光谱径向呼吸振动模式观察(英文)

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新型炭材料 2015年第5期30卷 385-390页

作者： Valeriy V.Bolotov Vasiliy E.Kan Egor V.knyazev Peter M.Korusenko Sergey n.nesov Yuriy A.Sten`kin Viktor A.Sachkov Irina V.Ponomareva Omsk Scientific Center of Siberian Branch Russian Academy of Sciences

采用拉曼光谱仪、透射电镜、俄歇能谱仪、X射线光电子能谱仪等研究在Si O2/Si基底上化学沉积的多壁碳纳米管(MWCnTs)经390℃的空气中热处理120 min前后与HCl溶液化学处理前后的结构变化情况。拉曼光谱集中测试低频(250-300 cm-1)带。结... 详细信息

采用拉曼光谱仪、透射电镜、俄歇能谱仪、X射线光电子能谱仪等研究在Si O2/Si基底上化学沉积的多壁碳纳米管(MWCnTs)经390℃的空气中热处理120 min前后与HCl溶液化学处理前后的结构变化情况。拉曼光谱集中测试低频(250-300 cm-1)带。结果表明,经热处理和化学处理后,在250-300 cm-1形成的拉曼带在峰位和半宽几乎没变。由透射电镜可知,小直径碳纳米管的内径值与拉曼光谱测试结果一致。这些结果表明,低频带产生于小直径碳纳米管的内壁中碳原子的径向呼吸振动。

关键词：碳纳米管径向振动模式拉曼化学气相沉积显微镜

Diclofenac sodium aqueous systems at low concentrations: Interconnection between physicochemical properties and action on hydrobionts

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Journal of Environmental Sciences 2020年第2期32卷 177-186页

作者： Irina S.Ryzhkina Yuliya V.Kiseleva Lyaisan I.Murtazina Tatyana V.Kuznetsova Erik R.Zainulgabidinov Igor V.knyazev Andrew M.Petrov Sergey E.Kondakov Alexander I.Konovalov Arbuzov Institute of Organic and Physical Chemistry FRC Kazan Scientific CenterRussian Academy of Sciences8 Arbuzov str.Kazan 420088Russia Institute for Problems of Ecology and Mineral Wealth Use of Tatarstan Academy of Sciences 28 Daurskaya Str.Kazan 420087Russia Lomonosov Moscow State University Chemistry Dept.1/3 Lenin HillsMoscow 119899Russia

Diclofenac sodium(DS) is a widely used nonsteroidal anti-inflammatory drug(nSAIDs).nSAIDs are poorly removed during standard wastewater *** consequences of the presence of nSAIDs in rivers and lakes at 10-11–10-8 mol/L are not yet established;therefore, ecotoxicologists have focused their efforts on studying the effect of lowconcentration nSAIDs on fish and hydrobionts, and also on predicting the potential risks to *** provides some information about the bioeffects of some nSAID solutions in low concentrations but there is no physicochemical explanation for these *** the physicochemical patterns of DS solutions in the low range of concentrations and establishing an interconnection between the solutions’ physicochemical properties and bioeffects can provide a conceptually new and important source of information regarding the unknown effects of *** physicochemical properties and action of DS solutions on Ceriodaphnia affinis cladocerans,Paramecium caudatum infusoria, Chlorella vulgaris unicellular green algae, as well as on the growth of the roots of Triticum vulgare wheat seeds, were studied in the calculated concentration range of 1 × 10-3–1 × 10-18 mol/*** relationship between these phenomena was established using the certified procedures for monitoring the toxicity of natural water and *** was shown for the first time that water solutions of DS are dispersed systems in which the dispersed phase undergoes a rearrangement with dilution, accompanied by changes in its size and properties, which affects the nonmonotonic dependences of the system’s physicochemical properties and could cause nonmonotonic changes in action on hydrobionts in the low concentration range.

关键词： Diclofenac sodium Low concentration Aqueous solutions Physicochemical properties Hydrobionts Toxicity

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伏尔加河边的木头补丁俄罗斯乡间别墅

缤纷 2010年第Z1期 76-83页

作者：陈怡 Alexey knyazev

说起俄罗斯民族,首先想到的几个词多半是伏特加、铁路、军帽,悠扬婉转的情歌,以及风情美艳的年轻女郎。这些早年的影视剧和书籍留下的依稀印象,构筑了人们对俄罗斯文化的记忆片段。这个拥有强烈民族感的国家,向来不遗余力地将其文化深... 详细信息

说起俄罗斯民族,首先想到的几个词多半是伏特加、铁路、军帽,悠扬婉转的情歌,以及风情美艳的年轻女郎。这些早年的影视剧和书籍留下的依稀印象,构筑了人们对俄罗斯文化的记忆片段。这个拥有强烈民族感的国家,向来不遗余力地将其文化深深植根于方方面面。

关键词：伏尔加河俄罗斯文化别墅俄罗斯民族木头建筑师玻璃窗木片房屋截面

A new quantum speed-meter interferometer: measuring speed to search for intermediate mass black holes

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Light(Science & Applications) 2018年第1期7卷 940-948页

作者： Stefan L.Danilishin Eugene knyazev nikita V.Voronchev Farid Ya.Khalili Christian Gräf Sebastian Steinlechner Jan-Simon Hennig Stefan Hild Institut für Theoretische Physik Leibniz Universität Hannover and Max-Planck-Institut für Gravitationsphysik(Albert-Einstein-Institut)Callinstraße 38D-30167 HannoverGermany SUPA School of Physics and AstronomyUniversity of GlasgowGlasgow G128QQUnited Kingdom M.V.Lomonosov Moscow State University Faculty of PhysicsMoscow 119991Russia Institut für Laserphysik und Zentrum für Optische Quantentechnologien der Universität Hamburg Luruper Chaussee 14922761 HamburgGermany

The recent discovery of gravitational waves(GW)by Advanced LIGO(Laser Interferometric Gravitational-wave Observatory)has impressively launched the novel field of gravitational astronomy and allowed us to glimpse exciting objects about which we could previously only *** sensitivity improvements at the low-frequency end of the detection band of future GW observatories must rely on quantum non-demolition(QnD)methods to suppress fundamental quantum fluctuations of the light fields used to readout the GW *** we present a novel concept of how to turn a conventional Michelson interferometer into a QnD speed-meter interferometer with coherently suppressed quantum back-action *** use two orthogonal polarizations of light and an optical circulator to couple *** carry out a detailed analysis of how imperfections and optical loss influence the achievable *** find that the proposed configuration significantly enhances the low-frequency sensitivity and increases the observable event rate of binary black-hole coalescences in the range of 102103Mby a factor of up to~300.

关键词： quantum allowed coherent

Differentiation of wild boar and domestic pig populations based on the frequency of chromosomes carrying endogenous retroviruses

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natural Science 2010年第6期2卷 527-534页

作者： Sergey V. nikitin nikolay S. Yudin Sergey P. knyazev Ruslan B. Aitnazarov Vitaliy A. Bekenev Valentina S. Deeva Galina M. Goncharenko Victor F. Kobzev Margarita A. Savina Viktor I. Ermolaev 不详

Analysis of the frequencies of chromosomes carrying various classes of porcine endogenous retroviruses (PERVs) and combinations of these classes was performed in the swine species Sus scrofa L. by using maps constructed in two principal component coordinates. Four population clusters can be recognized in the maps. Cluster 1 is formed by wild boars,cluster 2 by domestic meat breeds, cluster 3 by meat-and-lard (universal) breeds, and cluster 4 by miniature pigs. The maps indicate that modern domesticated swine meat breeds are the closest to the wild type. Meat-and-lard domestic swine breeds are more distant from wild boars, and miniature pigs are diverged the most. The maps showed that microevolution processes associated with PERV carriership frequency had two basic dimensions, or vectors: the vector of fat deposition variation and the “minus” selection vector (determination of commercial traits). Thus, PERVs may cause variation in pig physiology.

关键词： Sus Scrofa Endogenous Retroviruses Pig Genetics Microevolution Genetic Distance De-termination