检索结果-南通市图书馆

Friction 2024年第5期12卷 1042-1056页

作者： Anastasiya A.YAKOVENKO irina G.GORYACHEVA Ishlinsky Institute for Problems in Mechanics RAS Moscow119526Russia

The contact of a rigid body with nominally flat rough surface and an elastic half-space is *** solve the contact problem,the Greenwood-Williamson statistical model and the localization principle are *** developed contact model allows us to investigate the surface approach and the real contact area with taking into account the asperities *** is shown that the mutual influence of asperities changes not only contact characteristics at the macroscale,but also the contact pressure distribution at the *** follows from the results,the inclusion in the contact model of the effect of the mutual influence of asperities is especially significant for studying the real contact area,as well as the contact characteristics at high applied *** results calculated according to the proposed approach are in a good agreement with the experimentally observed effects,i.e.,the real contact area saturation and the additional compliance exhaustion.

关键词： surface roughness elasticity Greenwood-Williamson model localization principle asperity interaction

Comparison Analysis of Longitudinal Electrical Conductivity Distribution and Seismic Tomography Velocity Models for the Central Tien Shan Region

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Earth Science 2023年第2期34卷 580-587页

作者： Olga Zabinyakova Elena Bataleva irina Medved Research Station of the Russian Academy of Sciences in Bishkek City Bishkek 720049Kyrgyzstan Sobolev Institute of Geology and Mineralogy Siberian Branch of the Russian Academy of SciencesNovosibirsk 630090Russia Trofimuk Institute of Petroleum Geology and Geophysics Siberian Branch of the Russian Academy of SciencesNovosibirsk 630090Russia

The paper is dedicated to consider the approach of longitudinal electrical conductivity maps construction for Central Tien Shan region and to complete the comparison analysis of these maps with related seismic tomography *** results of joint analysis of longitudinal electrical conductivity distribution and seismic tomography velocity models with respect to geological and geophysical senses allow to confirm the already known and to establish the new patterns of structure and geodynamics of the Tien Shan segment of Central Asia such as the manifestation of characteristic structural ensembles,reflection of the longitudinal and transverse segmentation of the Tien Shan,the existence within the framework of a“single”orogen of segments with different near-surface and deep structure and morphological *** well,the correlation between the velocity characteristics and geoelectric properties was *** correlation allows to identify signs of reflection of fault structures in geophysical fields and to clarify the territorial and structural position of both visible and hidden ***,in the paper,the geological interpretation of geophysical anomalies is considered.

关键词： profile magnetotelluric soundings longitudinal electrical conductivity map seismic tomography velocity model Tien Shan geophysics

Lower and Upper Fuzzy Topological Subhypergroups

在线全文

学校读者我要写书评

暂无评论

Acta Mathematica Sinica,English Series 2013年第2期29卷 315-330页

作者： irina CRISTEA Jian Ming ZHAN Center for Systems and Information Technologies University of Nova Gorica Department of Mathematics Hubei University for Nationalities

This paper provides a new connection between algebraic hyperstructures and fuzzy sets. More specifically, using both properties of fuzzy topological spaces and those of fuzzy subhypergroups, we define the notions of lower （upper） fuzzy topological subhypergroups of a hypergroup endowed with a fuzzy topology. Some results concerning the image and the inverse image of a lower （upper） topological subhypergroup under a very good homomorphism of hypergroups （endowed with fuzzy topologies） are pointed out.

关键词： Hypergroup fuzzy topological space (relatively) fuzzy continuity lower (upper) fuzzytopological subhypergroup

Modelling and development of recycled water conditioning of copper-molybdenum ores processing

在线全文

学校读者我要写书评

暂无评论

International Journal of Mining Science and Technology 2019年第2期29卷 313-317页

作者： irina Pestriak Valery Morozov Erdenetuya Otchir National University of Science and Technology MISiS Erdenet Mining Corporation

Current use of enrichment and processing technologies of ores requires the introduction of closed circuits of water treatment. A decrease in technological properties is caused by accumulations of ion-molecular components in the circulating water. The objective of the simulation is to determine the maximum allowable concentrations of ions and molecules as well as the choice of conditions for deposition or *** of all, our examinations decrease the concentration of copper ions and fatty acids in the circulating water. By pre-mixing water with the highest concentration of these ions, a reduction of copper ion and fatty acid concentrations in the recycled water occurs. The results do not only ensure the achievement of the maximum permitted concentration(MPC) of copper and iron, significantly reducing the amount of oxidized copper, they also make it possible to use the united sewage as current water for the flotation process. Mixing and adding filtrate of tailings, discharges of urban wastewater treatment and effluent of ash pit of thermal power stations(TPS) to recycled water causes an increase in the capacity of the enrichment plant by 15–17%.

关键词： Tailings recycling water Closed cycle Urban waste water Conditioning Flotation of ore Natural water

The Digital Fingerprinting Method for Static Images Based on Weighted Hamming Metric and on Weighted Container Model

在线全文

学校读者我要写书评

暂无评论

Journal of Computer and Communications 2014年第9期2卷 121-126页

作者： Sergey Bezzateev Natalia voloshina Information Security Technologies Department Saint-Petersburg State University of Aerospace Instrumentation Saint-Petersburg Russia

The algorithm of fingerprint constructing for still images based on weighted image structure model is proposed. The error correcting codes that are perfect in weighted Hamming metric are used as a base for fingerprint... 详细信息

关键词： Fingerprinting Error Correcting Codes Perfect Codes in Weighted Hamming Metric Weighted Container Model Digital Rights Management

Identificati on of can didate disease genes in patie nts with comm on variable immunodeficiency

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Quantitative Biology 2019年第3期7卷 190-201页

作者： Guojun Liu Mikhail ABolkov irina ATuzankina irina GDanilova Department of Medical Biochemistry and Biophysics Institute of Natural Sciences and MathematicsUral Federal UniversityEkaterinburg 620000Russia Institute of Immunology and Physiology Ural Branch of the Russian Academy of SciencesEkaterinburg 620000Russia Department of immunochemistry Institute of Chemical EngineeringUral Federal UniversityEkaterinburg 620000Russia

Backgrounds Common variable immunodeficiency(CVID),the most prevalent form of primary immunodeficiency(PID),is characterized by hypogammaglobulinemia and recurrent *** protein-protein interaction(PPI)networks of CVID genes and identifying candidate CVID genes are critical steps in facilitating the early diagnosis of ***,the aim was to investigate PPI networks of CVID genes and identify candidate CVID genes using computation ***:Network density and biological distance were used to study PPI data for CVID and PID genes obtained from the STRING *** expression data of patients with CVID were obtained from the Gene Expression Omnibus,and then Pearson's correlation coefficient,a PPI database,and Kyoto Encyclopedia of Genes and Genomes were used to identify candidate CVID *** then evaluated our predictions and identified differentially expressed CVID ***:The majority of CVID genes are characterized by a high network density and small biological distance,whereas most PID genes are characterized by a low network density and large biological distance,indicating that CVID genes are more functionally similar to each other and closely interact with one other compared with PID ***,we identified 172 CVID candidate genes that have similar biological functions to known CVID genes,and eight genes were recently reported as CVID-related ***,a candidate gene,was down-regulated in CVID duodenal biopsies,but up-regulated in blood samples compared with levels in healthy ***:Our findings will aid in a better understanding of the complex of CVID genes,possibly further facilitating the early diagnosis of CVID.

关键词： common variable immunodeficiency primary immunodeficiency candidate CVID genes protein-protein interactions network density biological distance

Review:Global nutrient profiling by Phenotype MicroArrays:a tool complementing genomic and proteomic studies in conidial fungi

在线全文

学校读者我要写书评

暂无评论

Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2010年第3期11卷 151-168页

作者： Lea ATANASOVA irina S.DRUZHININA Research Area of Gene Technology and Applied Biochemistry Institute of Chemical EngineeringVienna University of Technology A-1060 ViennaAustria

Conidial fungi or molds and mildews are widely used in modern biotechnology as producers of antibiotics and other secondary metabolites,industrially important enzymes,chemicals and *** are also important pathogens of animals including humans and agricultural *** various applications and extremely versatile natural phenotypes have led to the constantly growing list of complete genomes which are now *** genomics and proteomics widely exploit the genomic information to study the cell-wide impact of altered genes on the phenotype of an organism and its *** allows for global analysis of the information flow from DNA to RNA to protein,but it is usually not sufficient for the description of the global phenotype of an *** recently,Phenotype MicroArray (PM) technology has been introduced as a tool to characterize the metabolism of a (wild) fungal strain or a *** this article,we review the background of PM applications for fungi and the methodic requirements to obtain reliable *** also report examples of the versatility of this tool.

关键词： Biolog Phenotype MicroArray Mitosporic fungi Carbon metabolism Trichoderma Aspergillus Biotechnology

Species concepts and biodiversity in Trichoderma and Hypocrea:from aggregate species to species clusters?

在线全文

学校读者我要写书评

暂无评论

Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2005年第2期6卷 100-112页

作者： DRUZHININA irina KUBICEK Christian P. Institute of Chemical Engineering Institute of Chemical Engineering Research Area Gene Technology and Applied Biochemistry Getreidemarkt 9/E1665 A-1060 Vienna Austria Research Area Gene Technology and Applied Biochemistry Getreidemarkt 9/E1665 A-1060 Vienna Austria

Trichoderma/Hypocrea is a genus of soil-borne or wood-decaying fungi containing members important to mankind as producers of industrial enzymes and biocontrol agents against plant pathogens, but also as opportunistic pathogens of immunocompromised humans. Species identification, while essential in view of the controversial properties of taxa ofthis genus, has been problematic by traditional methods. Here we will present a critical survey of the various identification methods in use. In addition,we will present an update on the taxonomy and phylogeny of the 88 taxa (which occur as 14 holomorphs, 49 teleomorphs and 25 anamorphs in nature) of Trichoderma/Hypocrea that have been confirmed by a combination of morphological, physiological and genetic approaches.

关键词： TrichodermalHypocrea Genus Molecular taxonomy-phylogeny

Mid-Miocene thermal impact on the lithosphere by sub-lithospheric convective mantle material:Transition from high-to moderate-Mg magmatism beneath Vitim Plateau,Siberia

在线全文

学校读者我要写书评

暂无评论

Geoscience Frontiers 2017年第4期8卷 753-774页

作者： irina Chuvashova Sergei Rasskazov Tatyana Yasnygina Institute of the Earth's Crust Siberian Branch of RAS Irkutsk State University

High-Mg lavas are characteristic of the mid-Miocene volcanism in Inner *** the Vitim Plateau,small volume high-Mg volcanics erupted at 16-14 *** were followed with voluminous moderate-Mg lavas at 14-13 *** the former unit,we have recorded a sequence of（1） initial basaltic melts,contaminated by crustal material,（2） uncontaminated high-Mg basanites and basalts of transitional（K-Na-K） compositions,and（3） picrobasalts and basalts of K series;in the latter unit a sequence of（1） initial basalts and basaltic andesites of transitional（Na-K-Na） compositions and（2） basalts and trachybasalts of K-Na *** pressure estimation,we infer that the high-Mg melts were derived from the sublithospheric mantle as deep as 150 km,unlike the moderate-Mg melts that were produced at the shallow *** 14-13 Ma rock sequence shows that initial melts equilibrated in a garnet-free mantle source with subsequently reduced degree of melting garnet-bearing *** melting of relatively depleted lithospheric material,evidenced by mantle xenoliths,was involved in melting,*** suggest that the studied transition from high-to moderate-Mg magmatism was due to the mid-Miocene thermal impact on the lithosphere by hot sub-lithospheric mantle material from the Transbaikalian low-velocity（melting） domain that had a potential temperature as high as 1510℃.This thermal impact triggered rifting in the lithosphere of the Baikal Rift Zone.

关键词： Volcanism Geodynamics Cenozoic Asia Asthenosphere Lithosphere

Quaternion H-type group and differential operatorΔ_λ

在线全文

学校读者我要写书评

暂无评论

Science China Mathematics 2008年第4期51卷 523-540页

作者： CHANG Der-Chen irina MARKINA Department of Mathematics Georgetown University Department of Mathematics University of Bergen

We study the relations between the quaternion H-type group and the boundary of the unit ball on the two-dimensional quaternionic *** orthogonal projection of the space of square integrable functions defined on quaternion H-type group into its subspace of boundary values of q- holomorphic functions is *** precise form of Cauchy-Szeg(?)kernel and the orthogonal projection operator is *** fundamental solution for the operatorΔ_λis found.

关键词： quaternion Siegel upper half space q-holomorphic function subelliptic operator 35H20 42B30