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Scintillations of optical vortex in randomly inhomogeneous medium

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Photonics Research 2015年第2期3卷 44-47页

作者： valerii P.Aksenov Valeriy V.Kolosov V.E.Zuev Institute of Atmospheric Optics Russian Academy of SciencesSiberian Branch

The comparative numerical and analytical analysis of scintillation indices of the vortex Laguerre–Gaussian beam and the nonvortex doughnut hole and Gaussian beams propagating in the randomly inhomogeneous atmosphere has been performed. It has been found that the dependence of the scintillation index at the axis of the optical vortex on the turbulence intensity at the path has the form of a unit step. It has been shown that the behavior of scintillations in the cross sections of vortex and nonvortex beams differs widely. Despite the scintillation index of vortex beams has been calculated only for the simplest LG10 mode, the obtained results are quite general, because they demonstrate the main properties inherent in scintillations of vortex beams of any type.

关键词： In Scintillations of optical vortex in randomly inhomogeneous medium

Longitudinal analysis of inflammation and microbiota dynamics in a model of mild chronic dextran sulfate sodium-induced colitis in mice

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World Journal of Gastroenterology 2014年第8期20卷 2051-2061页

作者： Luigia De Fazio Elena Cavazza Enzo Spisni Antonio Strillacci Manuela Centanni Marco Candela Chiara Praticò Massimo Campieri Chiara Ricci Maria Chiara valerii Department of Biological Geological and Environmental SciencesBiology UnitUniversity of BolognaVia Selmi 340126 BolognaItaly Department of Pharmacy and Biotechnology University of BolognaVia 640126 BolognaItaly Department of Medical and Surgical Sciences University of BolognaVia Massarenti 940138 BolognaItaly Department of Clinical and Experimental Sciences University of BresciaSpedali Civili 125121 BresciaItaly

AIM: To characterize longitudinally the inflammation and the gut microbiota dynamics in a mouse model of dextran sulfate sodium (DSS)-induced colitis.

关键词： Colitis, Dysbiosis Dextran sulfate sodium Inflammation Cyclooxygenase 2

Bolshoi Ussuriisky Island: Issues

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Bolshoi Ussuriisky Island: Issues

Intervalley Scattering of Electrons in n-Si at T = 77 ÷450 K

作者： Zh.Zh.Chimitdorzhiev valerii Spidlen Khabarovsk State Academy of Economics and Law room 709 60Serysheva Str.680031KhabarovskRussia

The article explores the development model of Bolshoi Ussuriisky Island within the format of"One island–two countries".The author analyses the existing concepts of the island development and assesses possible scenari...

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World Journal of Condensed Matter Physics 2013年第1期3卷 43-45页

作者： valerii Ermakov Volodymyr Kolomoets Leonid Panasyuk Baja Orasgulyev Caspian State University Aktau Kazakhtan V. Lashkaryov Institute for Semiconductor Physics NAS of Ukraine Kiev Ukraine

The change in electron mobility of n-Si with increasing the temperature which may be due to the inclusion of gLOphonon energy of 720 K, is presented. Under orientation of the uniaxial pressure X//[110]//J, g-transitions are attached in the directions [100] and [010]. The f-transitions are not completely removed from valleys located in the plane (100). In this case, there is no change in the slope of the dependence logρ vs. logT for the temperature range 77 to 450 K. So, no appreciable contribution of g-transitions to intervalley scattering occurs, while the observed is the decisive role of f-transitions to intervalley scattering. The results of measuring of the tensoresistivity effect for n-Si crystals under X//[001]//J are presented at these temperatures too.

关键词： Silicon f-Transitions g-Transitions Tensoresistivity Effect Uniaxial Strain

Layered Metal Composites: Newest Generation of Radiation-Protective Materials

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Journal of Materials Science and Chemical Engineering 2014年第8期2卷 6-11页

作者： Vitalii Bilous valerii Borysenko Victor Voyevodin Sergii Didenko Mycola Ilchenko Olexander Rybka Olexander Kuznetsov Yurii Plisak National Science Center “Kharkiv Institute of Physics and Technology” Kharkiv Ukraine Scientific and Production Group “Dniprotekhservice” Dnipropetrovsk Ukraine

The expediency of development of one of the newest highly effective radiation-protective materials—layered composites of “light metal/heavy metal” type is substantiated. The characteristics of the internal architecture of composites of Al/Pb type made by consecutive application of vacuum and normal atmospheric rolling are adduced. The differences between the radioisotope and accelerating techniques of experimental testing of radiation-protective properties of materials are described. The results of the testing of composites and the influence of their structure on radiation-protective properties of the investigated materials are characterized. It is shown that the radiation-protective efficiency of composites certain structures may be 30% - 40% higher than the aluminum. This gives the opportunity to reduce the weight of radiation-protective structure at preservation of effectiveness of protection at aluminum level, or to increase the effectiveness of protection at constant weight of this structure.

关键词： Radiation-Protective Materials and Structures Al/Pb Layered Composites Methods and Test Results of Radiation-Protective Properties Radiation-Protective Efficiency

A decade in gastric cancer curative surgery:Evidence of progress(1999-2009)

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World Journal of Gastrointestinal Surgery 2012年第3期4卷 45-54页

作者： Stefano Rausei Gianlorenzo Dionigi Francesca Rovera Luigi Boni Caterina valerii Luisa Giavarini Francesco Frattini Renzo Dionigi Department of Surgical Sciences University of Insubria

To investigate the progress in evidence-based surgical treatment of non-metastatic gastric cancer,we re- viewed the last ten years'*** data used in this review were identified by searches made on MED-LINE,Current Contents,PubMed,and other references taken from relevant original articles(on prospective and retrospective studies)concerning gastric cancer *** papers published in English between January 1999 and December 2009 were *** from ongoing studies were obtained in December 2009, from the trials registry of the United States National Institutes of Health(http://***).The citations list was presented according to evidence based relevance(i.e.,randomized controlled trials,pro- spective studies,retrospective series).In the last ten years,many challenges have been faced relating to the extension of gastric resection and nodal dissection as well as surgical timing,but we found only limited evidence,regardless of latitude of *** ongoing phase-Ⅲ trials may provide answers that will be valid for the coming decades,and which may bring definitive answers for the currently unresolved questions.

关键词： Gastric cancer Evidence-based surgery D2 lymphadenectomy Laparoscopic gastrectomy Endo-scopic treatment Neoadjuvant therapy

Some Features of Neural Networks as Nonlinearly Parameterized Models of Unknown Systems Using an Online Learning Algorithm

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Journal of Applied Mathematics and Physics 2018年第1期6卷 247-263页

作者： Leonid S. Zhiteckii valerii N. Azarskov Sergey A. Nikolaienko Klaudia Yu. Solovchuk Department of Intelligent Automatic Systems International Centre of Information Technologies and Systems Institute of Cybernetics Kiev Ukraine Aircraft Control Systems Department National Aviation University Kiev Ukraine

This paper deals with deriving the properties of updated neural network model that is exploited to identify an unknown nonlinear system via the standard gradient learning algorithm. The convergence of this algorithm for online training the three-layer neural networks in stochastic environment is studied. A special case where an unknown nonlinearity can exactly be approximated by some neural network with a nonlinear activation function for its output layer is considered. To analyze the asymptotic behavior of the learning processes, the so-called Lyapunov-like approach is utilized. As the Lyapunov function, the expected value of the square of approximation error depending on network parameters is chosen. Within this approach, sufficient conditions guaranteeing the convergence of learning algorithm with probability 1 are derived. Simulation results are presented to support the theoretical analysis.

关键词： Neural Network Nonlinear Model Online Learning Algorithm Lyapunov Func-tion Probabilistic Convergence

The early stage of polyphosphate accumulation in <i>saccharomyces cerevisiae</i>: comparative study by extraction and DAPI staining

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Advances in Bioscience and Biotechnology 2011年第4期2卷 293-297页

作者： Lubov Ryazanova Nadeschda Andreeva Tatiana Kulakovskaya Airat Valiakhmetov valerii Yashin Vladimir Vagabov Igor Kulaev 不详

Inorganic polyphosphate (PolyP), a bioactive polymer with multiple functions, plays a key role in biomineralizaion and phosphorus homeostasis in yeasts. After phosphate starvation, the cells of Saccharomyces cerevisiae restored their pool of PolyP during the first 30 min of incubation in the media containing phosphate and carbon sources. The cells of parent strain accumulated PolyP both in glucose and ethanol-containing media. In the medium with glucose, the strain with inactivated PPX1 and PPN1 genes (encoding two major yeast polyphosphatases) accumulated 2-fold more PolyP than the parent strain. The PolyP in the mutant cells had a greater average chain length compared to the parent strain. The strain with inactivated exopolyphosphatase genes РРХ1 and PPN1 was incapable of PolyP synthesis in the medium with ethanol. The in vivo staining of cells with DAPI show that in the cells of parent strain PolyP appeared first in cytoplasm and mitochondria under cultivation in glucose-containing medium and in cytoplasm and vacuoles in the medium with ethanol. In the ΔPPX1ΔPPN1double mutant PolyP accumulated in cytoplasm and vacuoles under cultivation in glucose-contained medium.

关键词： Saccharomyces Cerevisiae Inorganic Polyphosphate Localization Cytosol Mitochondria Vacuole Exopolyphosphatase Glucose Ethanol DAPI

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《汉字解析》研究

《汉字解析》研究

作者：瓦烈力（EVCHENKO valerii）大连理工大学

学位级别：硕士

世界上不同的语言有不同的标音方法。通过这个方法可以透视说这种语言的人群的思维方式和生活习惯。汉字的表意系统是象形的和形象的,一个字是一个形象。这就是汉字魅力的一部分。汉字是有几千年历史的中国文化的重要部分。通过研究它... 详细信息

世界上不同的语言有不同的标音方法。通过这个方法可以透视说这种语言的人群的思维方式和生活习惯。汉字的表意系统是象形的和形象的,一个字是一个形象。这就是汉字魅力的一部分。汉字是有几千年历史的中国文化的重要部分。通过研究它们可以认识中国的历史,思维方式的发展和语言的发展。汉语和汉字在中国人眼里和在外国人眼里显然是两个不同的东西。王西里于1866年出版的《汉字解析》是从一个俄罗斯汉学家的角度去研究汉字。原著是用19世纪的俄文亲手书写,所有的汉字也都是王西里亲手书写,所以有时候俄罗斯人也比较难辨认,只能按照语境猜测词的意义。书没有重新出版,所以首先要把手写书稿录入电脑,然后翻译成中文,对本书内容进行整理归纳,分析,并研究它的理论价值和实践意义。选这本书作为论文的研究对象,因为它具有重要的对外汉语教学意义,然而在俄罗斯和中国都没有人专门研究过它。选题的目的是挖掘《汉字解析》的学术意义,理论价值和贡献。首先,介绍王西里的生平和他的语言学研究成果。其次,梳理并研究《汉字解析》的全部内容。《汉字解析》给出了西里尔字母式的十九世纪汉语拼音系统。包括声母,韵母和声调。并介绍了有关汉字的基本概念和理论。最重要内容是分析汉字的结构类型并探索编排字典的方法,设计汉字部首,把汉字系统化。王西里研究和描写了六个汉字小类:象形,指事,会意,转注,形声,假借。他指出了识别汉字属于哪个小类的方法。王西里深入研究汉字的部首。他认为,声符体现汉字的本质,而不是部首。部首就是一个检索汉字的方法,用它可以检索汉字。所以部首的意义和价值跟普通词典的字母一样。结合中国汉字学研究的成就,评价《汉字解析》的理论价值和实践意义。理论价值包括:语音系统,方言,口语与书面语对立,笔画,汉字结构类型,部首。实践意义是在对外汉语教学方面。

关键词：汉字笔画象形會意形声