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The left-right side-specific endocrine signaling:implications for neurological deficits in stroke and neurodevelopmental disorders

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Neural Regeneration Research 2022年第11期17卷 2431-2433页

作者： Georgy Bakalkin nikolay Lukoyanov Igor Lavrov Mengliang Zhang Department of Pharmaceutical Biosciences Uppsala University Departamento de Biomedicina da Faculdade de Medicina da Universidade do Porto Instituto de Investiga??o e Inova??o em SaúdeInstituto de Biologia Molecular e Celular Department of Neurology Mayo Clinic Department of Molecular Medicine University of Southern Denmark

Brain injury-induced neurological deficits typically develop on the contralateral side of the body and include abnormal posture,motor weakness,and *** is believed that the interruption of descending neural pathways th... 详细信息

关键词： neurological typically deficit

A Semantic Approach to Workflow Management and Reuse for Research Problem Solving

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Data Intelligence 2022年第2期4卷 439-454页

作者： nikolay A.Skvortsov Sergey A.Stupnikov Federal Research Center"Computer Science and Control"of the Russian Academy of Sciences Moscow 119333Russia

The investigation proposes the application of an ontological semantic approach to describing workflow control patterns,research workflow step patterns,and the meaning of the workflows in terms of domain *** approach can provide wide opportunities for semantic refinement,reuse,and composition of *** reasoning allows verifying those compositions and implementations and provides machine-actionable workflow manipulation and problem-solving using *** described approach can take into account the implementation of workflows in different workflow management systems,the organization of workflows collections in data infrastructures and the search for them,the semantic approach to the selection of workflows and resources in the research domain,the creation of research step patterns and their implementation reusing fragments of existing workflows,the possibility of automation of problemsolving based on the reuse of *** application of the approach to CWFR conceptions is proposed.

关键词： Workflow reuse Workflow patterns,Domain ontology Canonical workflow framework for research,CWFR Principles of FAIR data

Mechanochemical Synthesis and Characterization of Nanocrystalline Copper-Cobalt Ferrites

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Acta Metallurgica Sinica(English Letters) 2015年第3期28卷 367-372页

作者： nikolay Velinov Dimitar Dimitrov Kremena Koleva Krassimir Ivanov Ivan Mitov Institute of Catalysis Bulgarian Academy of Sciences Department of Chemistry Agricultural University

Nanocrystalline copper-cobalt ferrites with composition Cu_（1-x）Co_xFe_2O_4,where x = 0.2 and 0.8,were synthesized by mechanochemical treatment of co-precipitated *** ferrite powders were characterized by XRD and Mossbauer *** proved obtaining of spinel ferrites with crystallite size smaller than 10 *** of crystallite size of samples with increasing of mechanochemical treatment duration was established,*** properties of obtained ferrites were tested in reactions of oxidation of CO,methanol and dimethyl *** catalytic activity of nanocrystalline copper-cobalt ferrites toward CO and CH_3OH（about 100% conversions of CO and CH_3OH at 160 ℃）and moderate activity toward（CH_3）_2O oxidation were *** results obtained revealed that the Co/Cu atomic ratio is an important factor determinant the behavior of catalysts toward methanol and DME oxidation.

关键词： Mechanochemical synthesis Nanocrystalline Ferrites Mossbauer spectroscopy Catalysis

Synchronous machine performance under geomagnetic disturbances

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High Voltage 2021年第5期6卷 894-903页

作者： Ilja Boguslawsky nikolay Korovkin Victor Popov Olga Sokolova Peter the Great St.Petersburg Polytechnic University St.PetersburgRussia Paul Scherrer Institute(PSI) VilligenSwitzerland

Geomagnetic disturbances(GMDs)are known to disturb power system equipment *** danger is associated with geomagnetically induced currents(GICs)occurring at the Earth's surface during *** do not endanger power system operation conditions by *** main challenge posed by GICs to power system states is the change in power system equipment operation conditions provoked by GIC *** primary avenue of blackout caused by GMDs is through power ***,in turn,can impair the operation of other power system equipment such as syn-chronous *** powerful synchronous machines are not designed and engineered to cope with the negative impacts of ***,the actual legal norms are inadequate in this *** the grid's resiliency to such an event is highly interesting to the *** physical processes in synchronous machine windings triggered by GICs and limitations brought to power grid operations are ***,the idea of the impact of GMDs on the power grid operation is *** analysis of the impact of GMDs on synchronous machines is performed in the second *** the end,the power system response under GMDs is studied.

关键词： geomagnetic Earth performance

Preface: Stars and interstellar medium

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Research in Astronomy and Astrophysics 2018年第8期18卷 1-3页

作者： nikolay N.Samus Yan Li Institute of Astronomy Russian Academy of Sciences Yunnan Observatories Chinese Academy of Sciences

This issue presents proceedings of the ＂Stars and Interstellar Medium＂ section of the All- Russian Astronomical Conference VAK-2017. Sixteen papers （selected from about 70 talks） cover dif- ferent problems related... 详细信息

关键词： stars: binaries - ISM general - ISM clouds

“Plasmonics”in free space:observation of giant wavevectors,vortices,and energy backflow in superoscillatory optical fields

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Light(Science & Applications) 2019年第1期8卷 1161-1169页

作者： Guanghui Yuan Edward T.F.Rogers nikolay I.Zheludev Centre for Disruptive Photonic Technologies The Photonic InstituteSchool of Physical and Mathematical SciencesNanyang Technological UniversitySingapore 637371Singapore Optoelectronics Research Centre and Centre for Photonic Metamaterials University of SouthamptonHighfieldSouthampton SO171BJUK Institute for Life Sciences University of SouthamptonHighfieldSouthampton SO171BJUK

Evanescent light can be localized at the nanoscale by resonant absorption in a plasmonic nanoparticle or taper or by transmission through a ***,a conventional lens cannot focus free-space light beyond half of the wavelength λ.Nevertheless,precisely tailored interference of multiple waves can form a hotspot in free space of an arbitrarily small size,which is known as ***,we report a new type of integrated metasurface interferometry that allows for the first time mapping of fields with a deep subwavelength resolution ~λ/*** findings reveal that an electromagnetic field near the superoscillatory hotspot has many features similar to those found near resonant plasmonic nanoparticles or nanoholes:the hotspots are surrounded by nanoscale phase singularities and zones where the phase of the superoscillatory field changes more than tenfold faster than a freepropagating plane *** with high local wavevectors are pinned to phase vortices and zones of energy backflow(~λ/20 in size)that contribute to tightening of the main focal spot size beyond the Abbe-Rayleigh *** observations reveal some analogy between plasmonic nanofocusing of evanescent waves and superoscillatory nanofocusing of free-space waves and prove the fundamental link between superoscillations and superfocusing,offering new opportunities for nanoscale metrology and imaging.

关键词： metrology free wave

Achromatic super-oscillatory lenses with subwavelength focusing

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Light(Science & Applications) 2017年第1期6卷 615-622页

作者： Guang Hui Yuan Edward TF Rogers nikolay I Zheludev Centre for Disruptive Photonic Technologies The Photonic InstituteSchool of Physical and Mathematical SciencesNanyang Technological UniversitySingapore 637371Singapore Optoelectronics Research Centre and Centre for Photonic Metamaterials University of SouthamptonHighfieldSouthampton SO171BJUK Institute for Life Sciences University of SouthamptonHighfieldSouthampton SO171BJUK

Lenses are crucial to light-enabled *** lenses have been perfected to achieve near-diffraction-limited resolution and minimal chromatic ***,such lenses are bulky and cannot focus light into a hotspot smaller than a half-wavelength of *** filters,initially suggested by Toraldo di Francia,can overcome the resolution constraints of conventional lenses but are not intrinsically chromatically *** we report single-element planar lenses that not only deliver sub-wavelength focusing,thus beating the diffraction limit of conventional refractive lenses,but also focus light of different colors into the same *** the principle of super-oscillations,we designed and fabricated a range of binary dielectric and metallic lenses for visible and infrared parts of the spectrum that are manufactured on silicon wafers,silica substrates and optical fiber *** low-cost,compact lenses could be useful in mobile devices,data storage,surveillance,robotics,space applications,imaging,manufacturing with light and spatially resolved nonlinear microscopies.

关键词： achromatic super-oscillation super-resolution

Constructing Representative Collective Signature Protocols Using The GOST R34.10-1994 Standard

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Computers, Materials & Continua 2023年第1期74卷 1475-1491页

作者： Tuan Nguyen Kim Duy Ho Ngoc nikolay A.Moldovyan School of Computer Science Duy Tan UniversityDanangVietnam Department of Information Technology HanoiVietnam ITMO University St.PetersburgRussia

The representative collective digital signature,which was suggested by us,is built based on combining the advantages of group digital signature and collective digital *** collective digital signature schema helps to create a unique digital signature that deputizes a collective of people representing different groups of signers and may also include personal *** advantage of the proposed collective signature is that it can be built based on most of the well-known difficult problems such as the factor analysis,the discrete logarithm and finding modulo roots of large prime numbers and the current digital signature standards of the United States and Russian *** this paper,we use the discrete logarithmic problem on prime finite fields,which has been implemented in the GOST R34.10-1994 digital signature standard,to build the proposed collective signature *** protocols help to create collective signatures:Guaranteed internal integrity and fixed size,independent of the number of members involved in forming the *** signature built in this study,consisting of 3 components(U,R,S),stores the information of all relevant signers in the U components,thus tracking the signer and against the“disclaim of liability”of the signer later is *** idea of hiding the signer’s public key is also applied in the proposed *** makes it easy for the signing group representative to specify which members are authorized to participate in the signature creation process.

关键词： Signing collective signing group discrete logarithm group signature collective signature GOST standards

New Representative Collective Signatures Based on the Discrete Logarithm Problem

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Computers, Materials & Continua 2022年第10期73卷 783-799页

作者： Tuan Nguyen Kim Duy Ho Ngoc nikolay A.Moldovyan School of Computer Science Duy Tan UniversityDa NangVietnam Department of Information Technology Ha NoiVietnam ITMO University St.PetersburgRussia

The representative collective digital signature scheme allows the creation of a unique collective signature on document M that represents an entire signing community consisting of many individual signers and many different signing groups,each signing group is represented by a group *** document M,a collective signature can be created using the representative digital signature scheme that represents an entire community consisting of individual signers and signing groups,each of which is represented by a group *** characteristic of this type of letter is that it consists of three elements(U,E,S),one of which(U)is used to store the information of all the signers who participated in the formation of the collective signature on document *** storing this information is necessary to identify the signer and resolve disputes later,it greatly increases the size of *** is considered a limitation of the collective signature representing 3 *** this paper,we propose and build a new type of collective signature,a collective signature representing 2 elements(E,S).In this case,the signature has been reduced in size,but it contains all the information needed to identify the signer and resolve disputes if *** construct the approved group signature scheme,which is the basic scheme for the proposed representative collective signature schemes,we use the discrete logarithm problem on the prime finite *** the end of this paper,we present the security analysis of the AGDS scheme and a performance evaluation of the proposed collective signature schemes.

关键词： Elliptic curve signing group individual signer collective signature group signature