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Identification of genes involved in the formation of soluble dietary fiber in winter rye grain and their expression in cultivars with different viscosities of wholemeal water extract

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The Crop Journal 2022年第2期10卷 532-549页

作者： Liudmila V.Kozlova Alsu R.Nazipova Oleg V.Gorshkov Liliya F.Gilmullina Olga V.Sautkina Natalia V.Petrova Oksana I.Trofimova Sergey N.Ponomarev Mira L Ponomareva Tatyana A.Gorshkova Kazan Institute of Biochemistry and Biophysics Federal Research CenterKazan Scientific Center of the Russian Academy of Sciences420111 KazanRussia Tatar scientific Research Institute of Agriculture Federal Research CenterKazan Scientific Center of the Russian Academy of Sciences420059 KazanRussia

The grain of rye(Secale cereale L.) used for baking contains a large amount of non-starch polysaccharides,making it an excellent component of functional foods. But rye grain intended for alcohol production and forage use should have a reduced content of these polysaccharides. A comprehensive parameter that can predict the best field of application for winter rye grain is the viscosity of its wholemeal water ***, our understanding of the genetic background underlying this key trait and associated features of rye grain is poor. By analyzing six russian winter rye cultivars, we identified the most contrasting forms and characterized the peculiarities of their water-soluble carbohydrates capable of influencing the viscosity of water extracts. Then, using phylogenetic and transcriptomic analyses, we identified in the rye genome many genes encoding putative glycosyltransferases and glycosylhydrolases responsible for the synthesis and degradation of arabinoxylans, mixed-linkage glucans, cellulose, and some other polysaccharides. We determined the dynamics of m RNA abundance for these genes at three stages of kernel development. Comparisons of gene expression levels in two contrasting cultivars revealed specific members of multigene families that may serve as promising targets for manipulating non-starch polysaccharide content in rye grain. High-viscosity cultivars were characterized by up-regulation of many glycosyltransferases involved in the biosynthesis of arabinoxylans and other cell-wall polysaccharides,whereas low-viscosity cultivars showed up-regulation of several genes encoding polysaccharidedegrading enzymes.

关键词： Rye(Secale cereale) Kernel development Arabinoxylan Mixed-linkage glucan Viscosity

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Supercritical CO_2: Properties and Technological Applications-A Review

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Journal of Thermal Science 2019年第3期28卷 394-430页

作者： NIKOLAI Polikhronidi RABIYAT Batyrova ASLAN Aliev ILMUTDIN Abdulagatov Thermodynamics of Fluids and Critical Phenomena Institute of Physics of the Dagestan Scientific Center of the Russian Academy of Sciences Mountain Botanical Garden of the Dagestan scientific center of the russian Academy of Sciences Thermophysics Division Geothermal Research Institute of the Russian Academy of Sciences Physical Chemistry Department Dagestan State University

The main goal of the present paper is to assess the available information so as to obtain a general procedure for dealing with the critical enhancement of the thermodynamic and transport properties of supercritical CO_2 and CO_2 containing binary mixtures for practical and scientific applications. The present review provides comprehensive analysis of the thermodynamic and transport properties of supercritical carbon dioxide and CO_2 containing binary mixtures(experiment and theory) and their various technological and scientific applications in different natural and industrial processes. The available information for the thermodynamic and transport properties(experiment and theory) enhancement(anomaly) of supercritical carbon dioxide and SC CO_2 + solute mixtures is comprehensively reviewed. The effect of long-range order parameter fluctuations on the thermodynamic and transport properties of supercritical fluids(SC CO_2) will be discussed. Simplified scaling type equation based on mode-coupling theory of critical dynamics with two critical amplitudes and one cutoff wave number as fluid-specific parameters was used to accurately predict of the transport properties of supercritical carbon dioxide. The recommended values of the specific parameters(asymptotic critical amplitudes) of the carbon dioxide for practical(prediction of the thermodynamic and transport properties of the supercritical CO_2 for technological applications) and scientific use were provided. The role of the critical line shapes of the carbon dioxide containing binary mixture(SC CO_2+solvent) in determination of the critical behavior of the mixture near the critical point of pure supercritical solvent(CO_2) is discussed. Krichevskii parameter concept for a description of thermodynamic behavior of dilute near-critical SC CO_2+solute mixtures is also discussed. The structural and thermodynamic properties of the carbon dioxide containing binary mixtures near the critical point of pure solvent(CO_2) are d

关键词： carbon dioxide critical point equation of state supercritical fluid thermodynamic properties transport properties

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Calcium-permeable AMPA receptors:an underestimated pharmacological target for the therapy of brain pathologies

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Neural Regeneration Research 2023年第12期18卷 2669-2670页

作者： Sergei G.Gaidin Artem M.Kosenkov Federal Research center“Pushchino scientific center for Biological Research of the russian Academy of Sciences” Institute of Cell Biophysics of the Russian Academy of SciencesPushchinoRussia

Excitotoxicity resulting from the accumulation of extracellular glutamate(the main excitatory neurotransmitter in the brain)is one of the main causes of neuronal death in various brain pathologies,including traumatic brain injury,epilepsy,stroke,and a number of neurodegenerative diseases such as Parkinson's and Alzheimer's diseases.

关键词： epilepsy diseases Alzheimer

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Acoustics of a viscoelastic medium with encapsulated bubbles

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Journal of Hydrodynamics 2021年第1期33卷 55-62页

作者： Damir A.Gubaidullin Yuri V.Fedorov Laboratory of Continuum Mechanics Institute of Mechanics and EngineeringFRC Kazan Scientific CenterRussian Academy of SciencesKazanRussia

In this paper,a modified Rayleigh-Lamb equation is derived that takes into account the radial vibrations of a gas bubble coated with a viscoelastic shell and located in an elastic *** small oscillations of inclusion,the problem of heat exchange between a gas,a liquid phase,a viscoelastic shell,and an elastic medium is *** energy integral is *** the case of small disturbances,the dispersion relation is found from the Rayleigh-Lamb equations,energy,and the known wave equation for the bubbly *** analytical expression of the equilibrium speed of sound is written out and its dependence on the size of the viscoelastic shell and the disturbance frequency is *** example of a mixture of polydimethylsiloxane with air bubbles coated with a rubber shell illustrates the influence of the elasticity of the carrier medium and the shell of the bubbles on the dependence of the phase velocity and attenuation coefficient on the perturbation *** a mixture of water with air bubbles coated with a rubber shell,the influence of the dependences of the shear modulus and viscosity of butyl rubber on the frequency of disturbances at different temperature on the dispersion curves is shown.A comparison of the theory with experimental data is given.

关键词： Acoustic wave gas bubbles viscoelastic medium and shell shear modulus dispersion equation

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Geophysical criterion of pre-outburst coal outsqueezing from the face space into the working

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International Journal of Mining Science and Technology 2019年第3期29卷 499-506页

作者： Alexander Shadrin Yuliya Diyuk Federal State Budget scientific Institution The Federal Research Center of Coal and Coal Chemistry of Siberian Branch of the Russian Academy of Sciences

The initial process of coal and gas sudden outburst is studied in the article when under the influence of rock and gas pressure the part of a coal seam layer(a coal section)is squeezed out from the mouth of the future outburst cavity in a jump-like manner into the ***-mechanical criterion for a part of a coal seam layer outsqueezing in the form of the relation of active(squeezing out)and passive(preventing the outsqueezing)forces is defined in the *** on it,the geophysical criterion is defined by expressing basic physical parameters through geo-physical ones:the current stress is defined by spectral-acoustic method through the ratio of high frequency and low-frequency components of an acoustic signal,which is generated into a face working space by the mining equipment operating in the face;in-situ gas pressure is defined by gas analytical method by the concentration of methane in the atmosphere of the working;the strength of the most broken coal layer is defined by a strength measuring device(a device for measuring the depth of a steal cone punched into the coal by a spring mechanism).This paper studies the influence of acoustic,strength and filtrating and collecting properties of a face working space on the limit value of an obtained geophysical criterion of pre-outburst squeezing of a coal‘‘plug”out of the mouth of the future outburst cavity into the working.

关键词： Block-like structure Criterion of a coal section outsqueezing Spectral-acoustic method Stress condition Coal strength property In-situ gas pressure Aero and gas control equipment Methane concentration

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Petrogenesis of siliceous high-Mg series:Evidence from Early Paleoproterozoic mafic volcanic rocks of the Vodlozero Domain,Fennoscandian Shield

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Geoscience Frontiers 2018年第1期9卷 207-221页

作者： M.Bogina V.Zlobin S.Svetov E.Sharkov A.Chistyakov Institute of Geology of Ore Deposits Petrography Mineralogy and Geochemistry Russian Academy of Sciences Geological Institute Russian Academy of Sciences Institute of Geology Karelian Scientific Center Russian Academy of Sciences

Compositional peculiarities of the siliceous high-Mg series(SHMS)rocks formed at the Archean-Paleoproterozoic boundary as a function of plume activity are discussed using example of Early Paleoproterozoic mafic volcanic rocks of the Vodlozero Domain,Fennoscandian *** rocks are characterized by wide variations in Mg#(33-67)and Cr contents(25-1123 ppm),LREE enrichment,and weakly negative_(εNd)(from-0.7 to-2.9).The high Gd/Yb ratio in the primitive high-Mg rocks of the Vodlozero Domain suggests their generation from a garnet-bearing *** the same time,their negative _(εNd)in combination with LREE enrichment points to the crustal contamination.A new model was proposed to explain the remarkable global-scale similarity of *** rocks can be generated by the contamination of a high-degree(30%)partial melt derived from a depleted *** lower crustal sanukitoid-type rocks can be considered as a universal crustal *** showed that such mixing can provide the observed narrow_(εNd)variations in Early Paleoproterozoic *** Neoarchean sanukitoid suites,which are widespread on all cratons,presumably composed the lower crust at the beginning of the ***,this mechanism can be considered universal for the genesis of the SHMS *** high-to low-Cr rock series can be produced by the fractionation of the mafic melt coupled with an insignificant crustal assimilation of felsic end members of the sanukitoid suite of the Vodlozero Domain en route to the surface,as suggested by the positive correlation of_(εNd)with Cr and Mg#,negative correlation with Th,and slight decrease of_(εNd)in the more evolved varieties.

关键词： Early Palaeoproterozoic Siliceous high-magnesian series (SHMS) rocks Sanukitoids Mantle plume Depleted mantle Crustal contamination

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Unsteadiness control of laminar junction flows on pressure fluctuations

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Applied Mathematics and Mechanics(English Edition) 2019年第3期40卷 373-380页

作者： Jianhua LIU Shucheng ZHAI E.KUDASHEV Fangwen HONG Kai YAN China Ship scientific Research center National Key Laboratory on Ship Vibration & Noise Space Research Institute of russian Academy of Sciences

Smoke-wire flow visualization is conducted carefully in a laminar junction to explore the physical behavior of laminar junction flows. The two-dimensional(2 D)velocity fields in the 30?plane of a laminar junction flow are acquired by a time-resolved particle image velocimetry(PIV) system at a frame rate of 1 kHz, based on which the unsteady fluctuating pressure fields can be calculated by the multi-path integration method proposed in the literature(GAND, F., DECK, S., BRUNET,V., and SAGAUT, P. Flow dynamics past a simplified wing body junction. Physics of Fluids, 22(11), 115111(2010)).A novel control strategy is utilized to attenuate the unsteadiness of the horseshoe vortices of the laminar junction flow, and the consequent effect on pressure fields is analyzed.

关键词： junction flow horseshoe vortex pressure fluctuation flow visualization

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The effect of the concentration of plastic waste on the formation of reaction products of the Ti-PET system

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Green Chemical Engineering 2024年第3期5卷 374-382页

作者： Aleksey E.Matveev Tomsk scientific center of the Siberian Branch of the russian Academy of Sciences 634055TomskAkademicheskii Prospekt 10/4Russia

The paper presents research results of the synthesis,phase composition,and structure of products obtained by highly exothermic reactions between Ti and C10H8O4mixture components,depending on the plastic waste concentration and Ti powder dispersiveness,density of initial samples,and synthesis *** dependence of the phase composition and structure of the synthesis products on the concentration of the polymer(plastic)component in the initial Ti-PET(C10H8O4)system was *** the plastic waste content is 20 wt%to 25 wt%,synthesis products contain TiC0.5O0.5-TiC0.6-0.75particle *** growth in the polyethylene terephthalate content from 30 wt%to 45 wt%leads to the formation of synthesis products consisting of titanium carbide(TiC0.6-1.0).The gaseous byproduct composition of the exothermic reaction is investigated for the Ti--C10H8O4mixture *** is found that the gaseous by-product mostly contains hydrogen and carbon monoxide as well as impurities of different hydrocarbons(methane,acetylene,ethane,ethene)and carbon *** maximum adiabatic temperature of the gas combustion temperature is 2080℃,which demonstrates the possibility of using gas as a fuel for energy generation *** on the data obtained,it is possible to create a basis for a new plastic waste technology to fabricate carbide-containing materials.

关键词： Plastic waste Titanium carbide Green technology Hydrogen synthesis

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Architecture of Graphics System with 3D Acceleration Support for Embedded Operating Systems

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Tsinghua Science and Technology 2024年第3期29卷 863-873页

作者： Alexander Giatsintov Kirill Mamrosenko Pavel Bazhenov center of Visualization and Sattelite Information Technologies Scientific Research Institute for System Analysis of the Russian Academy of Sciences(SRISA RAS)Moscow 117218Russia

An increasing number of tasks now require the use of hardware accelerators to reduce the time required for computation and display the computational *** paper presents a new graphics system architecture for operating systems(OSs)with microkernel architecture,including real-time *** proposed system architecture provides capabilities for displaying graphical images on various information display devices and for accelerating graphical operations on *** architecture of the graphics system uses a concept of allocators to manage system and video memory,provides an abstraction of memory operations with a single interface for video memory management,and simplifies memory handling where incorrect operation is the cause of many failures.A comparison between the performance of a real-time OS and Linux OS implementing the graphics system using the example of a glmark2 benchmark is presented,thereby the superiority of the proposed architecture in several scenarios is demonstrated.

关键词： real-time operating system(RTOS) graphics system rendering system architecture operatingsystem visualization system programming

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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

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