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Magnetooptical Properties of Layer-by-Layer Deposited Ferromagnet—Dielectric Nanocomposites

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Materials Sciences and Applications 2013年第4期4卷 16-23页

作者： Viktoria evgenèvna Buravtsova Elena Alexandrovna Ganshina Sergey Alexandrovich Kirov Yuriy Egorovich Kalinin Alexandr Viktorovich Sitnikov Physics Faculty Lomonosov Moscow State University Moscow Russia Voronezh State Technical University Voronezh Russia

The present work was initiated to investigate how technology of preparation of nanocomposites (Co45Fe45Zr10) Z(Al2O3)1-Z affects their magneto-optical (MO) properties. The spectral, magnetic field and concentration dependences of the transversal Kerr effect (TKE) have been studied either for bulk or layer-by-layer deposited nanocomposites within a wide range of the ferromagnetic (FM) phase concentrations and for various thicknesses of layers. It was found that the MO response of the layer-by-layer deposited nanocomposites with compositions inside the percolation interval differs essentially from the one of the bulk composites and depends on the layer thicknesses. With decreasing thicknesses of layers the percolation threshold has been shifted towards the lower contents of the FM phase. In addition, it has been established that the size and shape of the granules inside the nanocomposite layer also depends on the layer thickness as well as the microstructure of the layer-by-layer sputtered composites considerably differs from the microstructure of the bulk nanocomposite.

关键词： Magnetooptics Nanostructure Composites

Protective Effect of Ubiquinone and Precursors of ItsSynthesis on Mitochondrial Respiratory Chain andActivity of Matrix Metalloproteinases in Animal Tissuesunder Effect of Doxorubicin

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Journal of Pharmacy and Pharmacology 2015年第3期3卷 116-127页

作者： Anatoliy Burlaka Olena Kuchmenko Dmytro Petukhov Iryna Ganusevych Sergiy Lukin evgeniya Lukyanchuk evgen Sydoryk Georgiy Donchenko Department of Microenvironment of Tumor Cells Kavetsky Institute of Experimental Pathology Oncology and Radiobiology ofthe National Academy of Sciences of Ukraine Kyiv 03022 Ukraine Laboratory of Molecular Biochemistry Department of Fundamental Research National Scientific Centre "Strazhesko Institute ofCardiology" of the National Academy of Medical Sciences of Ukraine Kyiv 03680 Ukraine Laboratory of Cell Signaling Palladin Institute of Biochemistry of the National Academy of Sciences of Ukraine Kyiv 01601Ukraine Department of Vitamin and Coenzyme Biochemistry PaUadin Institute of Biochemistry of the National Academy of Sciences ofUkraine Kyiv 01601 Ukraine

Mitochondrial dysfunction, oxidative stress, and their regulation are important fields of study in modem clinical *** CoQ is an efficient therapeutic agent, yet its application has leads to continued suppression of endogenous CoQ synthesis,which limits CoQ applicability. Our aim was to study the state of mitochondrial electron transport chain components, CoQ contentand redox state, superoxide anion radicals and NO production rates, and active MMP-2 and MMP-9 content in rat liver and heartunder treatment with Doxorubicin, CoQ10, and complex preparation of modulators and precursors of CoQ biosynthesis （EPMcomplex）. The results demonstrate that treatment with EPM complex and CoQ10 in addition to Doxorubicin administration exertsprotective effect on liver and heart mitochondria, evidenced by restoration of electron transport in respiratory chain, which isexpressed as decreased nitrile complexes formation with Fe-S-proteins and increased ubisemiquinone content. The protective effectsof EPM complex on mitochondrial electron transport chain under Doxorubicin administration is on par with those of CoQ10, anddecreased MMP2 and MMP9 activities signify lessened extracellular matrix destruction. These results demonstrate the viability ofapproaches to correct adverse effects of Doxorubicin by treatment with CoQ10 and e complex of precursors and modulators of itsbiosynthesis.

关键词： Ubiquinone, mitochondrion, matrix metalloproteinases, doxorubicin.

Estimate of the Crystallization Kinetics in Stoichiometry Compositions Films of Ge:Sb:Te

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Journal of Surface Engineered Materials and Advanced Technology 2012年第1期2卷 44-46页

作者： Carlos Virgilio Rivera Rodriguez Eduardo Morales Sanchez Jesus Gonzalez Hernandez evgen Prokhorov Juan Munoz Saldana Gerardo Trapaga Martinez Ciencias Ambientales del Instituto Nacional de Investigaciones Nucleares La MarquesaMexico CICATA-IPN Unidad Queretaro QueretaroMexico Centro de Investigacion en Materiales Avanzados ChihuahuaMexico CINVESTAV-Qro. QueretaroMexico

The aim of this work is to compare the isothermal crystallization kinetic in the films along GeTe-Sb2Te3 line with composition Ge2Sb2Te5, Ge1Sb2Te4 Ge1Sb4Te7 and Ge4Sb1Te5 using mainly Johnson–Mehl–Avrami-Kolmogorov (JMAK) model. Results obtained have shown different crystallization mechanism in the investigated films. In Ge2Sb2Te5 and Ge1Sb2Te4 films the analysis of the kinetic results (Avrani coefficient) showed that at the beginning of crystallization a metastable phase appeared with the Ge1Sb4Te7 composition, this is followed by the nucleation and growth of the stable fcc phase up to full crystallization. In contrast Ge4Sb1Te5 and Ge1Sb4Te7 films show diffusion control growing from small dimension grains with decreasing nucleation rate.

关键词： Crystallization Ge:Sb:Te JMAK Model

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维修功能及其组织模式的分析

设备管理与维修 2006年第9期 44-46页

作者： Mag.evgen Zgoznik Liljana Miloevic 王秩信

未来生产领域的竞争正在变为与时间的竞争。我们需要的方法是能缩短产品的开发过程和/或能快速提高产品的性能。技术的发展也有利于使时间成为企业获得成功的关键。在基本的生产领域中,假如能缩短传递时间,我们会再度找到市场竞争的关... 详细信息

未来生产领域的竞争正在变为与时间的竞争。我们需要的方法是能缩短产品的开发过程和/或能快速提高产品的性能。技术的发展也有利于使时间成为企业获得成功的关键。在基本的生产领域中,假如能缩短传递时间,我们会再度找到市场竞争的关键问题。生产过程中的另一个关键问题是生产设备的维修工作。维修工作包括专门的程序、任务、说明,需要有经验的工人,以及能满足生产设备可靠性要求所必需的装置和其他资源。

关键词：机构组织过程管理浪费时间

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维修功能及其组织模式的分析(续)

设备管理与维修 2006年第10期 40-42页

作者： Mag.evgen Zgoznik Liljana Miloevic 王秩信

2.按过程组织维修(Processing Organized Maintenance)许多时候,有些组织机构所实施的程序,其实对普通目标并没有增加任何内容,所以它们是不必要的,甚至于毫无意义的.如果对这些程序不及时发现并加以删除,则它们带来的严重危害,会自动... 详细信息

2.按过程组织维修(Processing Organized Maintenance)许多时候,有些组织机构所实施的程序,其实对普通目标并没有增加任何内容,所以它们是不必要的,甚至于毫无意义的.如果对这些程序不及时发现并加以删除,则它们带来的严重危害,会自动进入未来的信息技术中.通过这些程序会有怎样的结果呢?很快地完成了不必要的和毫无意义的程序.多么浪费时间啊!

关键词：组织机构维修信息技术程序浪费

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变质成矿作用的演化

国外矿床地质 1995年第4期 68-68页

作者： evgen.,K 白冶