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Mesh-supported V2O5-WO3/TiO2 nanosheet array catalysts for efficient removal of NOx

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Tungsten 2025年第1期7卷 100-111页

作者： Zhi-Qi Zhang Liu Yang Wen Luo vladimir An Jing Li Bao-Dan Liu school of Materials science and Engineering Northeastern University Foshan Graduate school of Innovation Northeastern University Kizhner Research Center School of Advanced Manufacturing Technologies Tomsk Polytechnic University

The design and synthesis of vanadium-based denitration catalysts with low-temperature activity pose significant challenges in the field of toxic gas *** this study,we have developed a novel approach to fabricate highly efficient V2O5-WO3/TiO2monolithic mesh catalysts for NOxreduction at low ***,TiO2nanosheets with strong adhesion and large surface area were grown on Ti mesh using plasma electrolytic oxidation technology and hydrothermal ***,super-small traces of WO3and V2O5active nano-species were subsequently deposited on TiO2nanosheets using the deposition-precipitation *** to traditional ceramic-based V2O5-WO3/TiO2catalysts,our V2O5-WO3/TiO2monolithic mesh catalyst exhibits superior mechanical performance,excellent thermal conductivity,lower pressure drop,higher utilization of active components,and stronger synergistic ***,the V2O5-WO3/TiO2monolithic mesh catalysts exhibited excellent low-temperature catalytic activity with 98% of NOxconversion at 220℃,and remarkable long-term sO2tolerance and water resistance in the selective catalytic reduction（sCR） of NOxwith *** sCR reaction of tiny V2O5and WO3active species supported on TiO2nanosheets directly demonstrated to follow the Eley-Rideal mechanism by in situ infrared spectra.

关键词： Low temperature activity Monolithic mesh catalysts NH3-sCR sO2 tolerance V2O5-WO3/TiO2

Improving on Linear scan Register Allocation

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International Journal of Automation and computing 2018年第2期15卷 228-238页

作者： shahrzad Kananizadeh Kirill kononenko Department of Computer science Saarland University Saarbrticken Germany Ecole Normale superieure/French Institute for Research in Computer science and Automation (INRIA) Paris France

Register allocation is a major step for all compilers. Various register allocation algorithms have been developed over the dec- ades. This work describes a new class of rapid register allocation algorithms and presents experimental data on their behavior. Our re- search encourages the avoidance of graphing and graph-coloring based on the fact that precise graph-coloring is nondeterministic poly- nomial time-complete （NP-complete）, which is not suitable for real-time tasks. In addition, practical graph-coloring algorithms tend to use polynomial-time heuristics. In dynamic compilation environments, their super linear complexity makes them unsuitable for register allocation and code generation. Existing tools for code generation and register allocation do not completely fulfill the requirements of fast compilation. Existing approaches either do not allow for the optimization of register allocation to be achieved comprehensively with a sufficient degree of performance or they require an unjustifiable amount of time and/or resources. Therefore, we propose a new class of register allocation and code generation algorithms that can be performed in linear time. These algorithms are based on the mathematic- al foundations of abstract interpretation and the computation of the level of abstraction. They have been implemented in a specialized library for just-in-time compilation. The specialization of this library involves the execution of common intermediate language （CIL） and low level virtual machine （LLVM） with a focus on embedded systems.

关键词： Register allocation just-in-time compilation code generation static analysis dynamic analysis.

Ecology and social behavior of the social vole Microtus socialis: A generalized review

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Current Zoology 2023年第6期69卷 775-783页

作者： vladimir s.Gromov A.N.severtsov Institute of Ecology and Evolution Leninsky prosp.33Moscow 119071Russia

The present review is a compilation of the published data on the ecology and social behavior of the social *** studies provide evidence that these voles live in family groups consisting of 1 adult male,1 or 2 breeding females,and their offspring(1 or 2 litters).The social vole is capable of year-round reproduction,but in arid regions,the voles demonstrate seasonality in *** mating system of this species may be defined as behavioral monogamy.A typical feature of the space use system is territoriality characterized by a locus-dependent dominance in relationships between neighboring breeding pairs as well as family *** family group social organization may be defined as consistent relationships without a dominant *** voles are cooperative in defending their territories,constructing burrows,digging underground tunnels,maintaining nests,and raising *** appears to enhance the survival of family groups of this species under the extreme climaticconditionsof Central Asia.

关键词： ecology family-group lifestyle mating system reproduction social organization social vole

Elaboration of a conceptual solution for the development of the Arctic shelf from seasonally flooded coastal areas

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International Journal of Mining science and Technology 2022年第1期32卷 113-119页

作者： vladimir s.Litvinenko Mikhail V.Dvoynikov vladimir L.Trushko saint-Petersburg Mining University Saint-Petersburg 199106Russia

Currently,construction of facilities in the Arctic is carried out on sand islands,but there are limitations for remote coastal *** restrictions are associated with the lack of quarries with construction sand in the immediate vicinity of the work site,as well as the risk of seasonal flooding of the *** article includes conceptual solutions for construction of modular piling in Arctic nearshore conditions,upon which drilling rigs and auxiliary equipment can be placed for the purpose of subsequent wildcatting,development and exploratory extended reach drilling wells(with measured depth about 15000 m).During the construction of the modular piling foundations,a mathematical simulation of the thermodynamic condition of the frozen ground was conducted,and the bearing capacity of the foundations was *** proposed solutions will solve these problems by constructing modular pile foundations and placing the necessary infrastructure on them,taking into account the distribution of loads during operation in seasonally flooded areas.

关键词： Drilling&drillholes stress analysis Offshore engineering Infrastructure planning Geotechnical engineering Extended reach drilling

Ecology and social behavior of the tamarisk gerbil Meriones tamariscinus: insights from long-term research in the wild and semi-natural environments

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Current Zoology 2024年第5期70卷 685-695页

作者： vladimir s.Gromov A.N.severtsov Institute of Ecology and Evolution Leninsky Ave.33Moscow 119071Russia

The present review provides a compilation of the published data on the ecology and social behavior of tamarisk gerbils. Both field studies anddirect observations under semi-natural conditions provide evidence that the tamarisk gerbil is a nocturnal herbivorous rodent that lives in highlyseasonal habitats and displays seasonal fluctuations in reproduction and spatial organization. A typical feature of the tamarisk gerbils’ spatialorganization is higher mobility of males during the breeding season (as compared with the nonbreeding period) and formation of temporaryaggregations of males competing for access to receptive females;the composition of these aggregations was variable and depended on thereproductive condition of the females. Females tend to occupy exclusive home ranges irrespective of their reproductive condition. The matingsystem of the species can be defined as scramble competition polygyny with some features of polygynandry and promiscuity. The tamariskgerbil has distinct features of a solitary species and its social structure is primarily based on aggressive interactions or mutual avoidance ofconspecifics resulting in a dominance hierarchy among males and site-dependent dominance among females during the breeding season. Bythe end of the breeding season, males become less mobile and occupy nearly exclusive home ranges, consistent with solitary living. The mainfeatures of the spatial and social organization of this species, which distinguish it from other solitary rodents, are the higher mobility of malesand the formation of temporary multimale–multifemale aggregations during the breeding season. Overall, the data presented expand our understanding of socioecology of gerbils.

关键词： ecology reproduction social behavior spatial organization tamarisk gerbil

Relaxation of Mechanical stress in Poly(vinyl alcohol) Cryogels of Different Compositions

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Chinese Journal of Polymer science 2023年第3期41卷 442-447,I0010页

作者： vladimir N.Manzhai Maria s.Fufaeva Ekaterina s.Kashlach Institute of Petroleum Chemistry of the siberian Branch of the Russian Academy of sciences Tomsk 634055Russia

The study presents the experimental results of measurements of the relaxation time of cryogels formed from various colloid-dispersed systems based on a poly(vinyl alcohol) aqueous *** is shown that the value of relaxation time,which characterizes the relationship between the viscosity and elasticity of real bodies,describes the rheological properties of materials more objectively than the traditional assessment of their physical and mechanical characteristics only by the elasticity modulus of the samples.

关键词： Cryogel Relaxation processes Viscoelasticity Rheological properties

Experimental study on the performance of a rotational supercavitating evaporator for desalination

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science China(Technological sciences) 2014年第11期57卷 2115-2130页

作者： LIKHACHEV Dmitriy s LI FengChen KULAGIN vladimir A school of Energy science and Engineering Harbin Institute of Technology Department of Heat Technology and Fluid Dynamics Siberian Federal University

Efforts have been made on experimental research of a supercavitation device for desalination, which is named rotational supercavitating evaporator （RsCE）. The RsCE is characterised by the simple construction and responsive capacity control, and only requires rough filtration of the source water for scaling- and fouling-free operations. The present study has been conducted for the water flow at temperature of around 22-30℃ and atmospheric pressure as the first step for investigation of the performance characteristics of RsCE. The multiply factor extremal experiments conducted with the Box-Wilson＇s method have revealed the salinity of the condensate, the temperature of steam inside the supercavity, and dependence of the shape of supercavity on the rate of steam extraction and rotation speed of impeller. The shape of impeller and the expected supercavitating effects it generates have been confirmed by experimental results at the rotation speed of 5430 rpm （round per minute）. The design of the steam extraction openings has been approved during the evacuation of steam. The experimental dependencies have been obtained in form of statistically valid regression equations, which can be used for engineering design of RsCE.

关键词： desalination cavitation technology thermal method steam extraction regression analysis

Discipline Impact Factor: some of Its History, some of the Author's Experience of Its Application, the Continuing Reasons for Its Use and… Next Beyond

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Journal of Data and Information science 2020年第3期5卷 197-209页

作者： vladimir s.Lazarev Belarusian National Technical University 16 Yakub Kolas StMinsk220013Republic of Belarus

Purpose: This work aims to consider the role and some of the 42-year history of the discipline impact factor(DIF) in evaluation of serial publications. Also, the original "symmetric" indicator called the "discipline susceptibility factor" is to be presented. Design/methodology/approach: In accordance with the purpose of the work, the methods are analytical interpretation of the scientific literature related to this problem as well as speculative explanations. The information base of the research is bibliometric publications dealing with impact, impact factor, discipline impact factor, and discipline susceptibility ***: Examples of the DIF application and modification of the indicator are given. It is shown why research and university libraries need to use the DIF to evaluate serials in conditions of scarce funding for subscription to serial publications, even if open access is available. The role of the DIF for evaluating journals by authors of scientific papers when choosing a good and right journal for submitting a paper is also briefly discussed. An original indicator "symmetrical" to the DIF(the "discipline susceptibility factor") and its differences from the DIF in terms of content and purpose of evaluation are also briefly *** limitations: The selection of publications for the information base of the research did not include those in which the DIF was only mentioned, used partially or not for its original purpose. Restrictions on the length of the article to be submitted in this special issue of the JDIs also caused exclusion even a number of completely relevant publications. Consideration of the DIF is not placed in the context of describing other derivatives from the Garfield impact factor. Practical implications: An underrated bibliometric indicator, viz. the discipline impact factor is being promoted for the practical application. An original indicator "symmetrical" to DIF has been proposed in order of searching serial publicatio

关键词： Discipline impact factor Discipline susceptibility factor Citation analysis Journals evaluation serials evaluation Information service

Incubation time fracture criterion for FEM simulations

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Acta Mechanica sinica 2011年第4期27卷 541-549页

作者： vladimir Bratov Institute for Problem in Mechanical Engineering of the Russian Academy of sciences Bolshoj pr.V.O.61199178St.-PetersburgRussia

The paper is discussing problems connected with embedment of the incubation time criterion for brittle fracture into finite element computational schemes. Incubation time fracture criterion is reviewed; practical questions of its numerical implementation are extensively discussed. several examples of how the incubation time fracture criterion can be used as fracture condition in finite element computations are given. The examples include simulations of dynamic crack propagation and arrest, impact crater formation （i.e. fracture in initially intact media）, spall fracture in plates, propagation of cracks in pipelines. Applicability of the approach to model initiation, development and arrest of dynamic fracture is claimed.

关键词： Fracture dynamics Incubation time Crack dy-namics Finite element method Fracture arrest