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High-permeance crosslinked PTMSP thin-film composite membranes as supports for CO_2 selective layer formation

Green Energy & Environment 2016年第3期1卷 235-245页

作者： Stepan D.Bazhenov Ilya L.Borisov Danila S.Bakhtin Anastasia n.Rybakova Valery S.Khotimskiy sergey P.Molchanov Vladimir V.Volkov A.V.Topchiev Institute of Petrochemical Synthesis RAS

In the development of the composite gas separation membranes for post-combustion CO_2 capture, little attention is focused on the optimization of the membrane supports, which satisfy the conditions of this technology. The primary requirements to the membrane supports are concerned with their high CO_2 permeance. In this work, the membrane supports with desired characteristics were developed as high-permeance gas separation thin film composite(TFC) membranes with the thin defect-free layer from the crosslinked highly permeable polymer, poly[1-(trimethylsilyl)-1-propyne](PTMSP). This layer is insoluble in chloroform and can be used as a gutter layer for the further deposition of the CO_2-selective materials from the organic solvents. Crosslinking of PTMSP was performed using polyethyleneimine(PEI) and poly(ethyleneglycol) diglycidyl ether(PEGDGE) as crosslinking agents. Optimal concentrations of PEI in PTMSP and PEGDGE in methanol were selected in order to diminish the undesirable effect on the final membrane gas transport characteristics. The conditions of the kiss-coating technique for the deposition of the thin defect-free PTMSP-based layer, namely, composition of the casting solution and the speed of movement of the porous commercial microfiltration-grade support, were optimized. The procedure of post-treatment with alcohols and alcohol solutions was shown to be crucial for the improvement of gas permeance of the membranes with the crosslinked PTMSP layer having thickness ranging within 1-2.5 μm. The claimed membranes showed the following characteristics: CO_2 permeance is equal to 50—54 m^3(STP)/(m^2 h bar)(18,500—20,000 GPU), ideal CO_2/n_2 selectivity is 3.6-3.7, and their selective layers are insoluble in chloroform. Thus, the developed highpermeance TFC membranes are considered as a promising supports for further modification by enhanced CO_2 selective layer formation.

关键词： Thin-film composite membrane Gas permeance PTMSP Crosslinking Carbon dioxide capture

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Porous Shish-Kebab Structure Prepared from Oriented UHMWPE Films by Processing in Supercritical CO_(2)

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Chinese Journal of Polymer Science 2024年第1期42卷 97-104,I0009页

作者： sergey A.Lermontov Aleksey V.Maksimkin nataliya A.Sipyagina Tarek Dayyoub Alena n.Malkova Evgeniy A.Kolesnikov Elena A.Straumal Inna O.Gozhikova Saidkhodzha G.nematulloev Dmitry V.Telyshev Institute of Physiologically Active Compounds of the Russian Academy of Sciences Chernogolovka 142432Russia Institute for Bionic Technologies and Engineering I.M.Sechenov First Moscow State Medical University(Sechenov University)Moscow 19991Russia national University of Science and Technology"MISIS"Moscow 119049 Russia Institute of Biomedical Systems National Research University of Electronic TechnologyZelenogradMoscow 124498Russia

For the first time, a highly crystalline porous shish-kebab structure with a high degree of crystallinity was obtained by using a combination of two methods for the formation of porous polymeric materials. A treatment procedure using supercritical carbon dioxide(sc CO_(2))was carried out for oriented ultrahigh molecular weight polyethylene(UHMWPE) films, which provided special conditions for the crystallization of dissolved UHMWPE macromolecules on the surface of oriented UHMWPE crystals. The prepared porous materials were investigated by scanning electron microscopy(SEM) and differential scanning calorimetry(DSC). The particularity of the obtained porous shish-kebab is the absence of the amorphous phase between lamellar crystals(kebabs). The obtained pores had an oval shape, and they were oriented in the orientation direction of the UHMWPE macromolecules. The pore size ranged from 0.05 μm to 4 μm. Controlling the conditions for the crystallization of the UHMWPE macromolecules using supercritical CO_(2) gives the possibility to control the size of both lamellar disks and pores formed.

关键词： UHMWPE Supercritical CO_(2) Porous shish-kebab structure

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Observation of nonlinear disclination states

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Light(Science & Applications) 2023年第9期12卷 1818-1829页

作者： Boquan Ren Antonina A.Arkhipova Yiqi Zhang Yaroslav V.Kartashov Hongguang Wang Sergei A.Zhuravitskii nikolay n.Skryabin Ivan V.Dyakonov Alexander A.Kalinkin Sergei P.Kulik Victor O.Kompanets sergey V.Chekalin Victor n.Zadkov Key Laboratory for Physical Electronics and Devices Ministry of EducationSchool of Electronic Science and EngineeringXi’an Jiaotong UniversityXi’an 710049China Institute of Spectroscopy Russian Academy of SciencesTroitskMoscow 108840Russia Faculty of Physics Higher School of EconomicsMoscow 105066Russia Quantum Technology Centre Faculty of PhysicsM.V.Lomonosov Moscow State UniversityMoscow 119991Russia

Introduction of controllable deformations into periodic materials that lead to disclinations in their structure opens novel routes for construction of higher-order topological insulators hosting topological states at *** of these topological states is consistent with the bulk-disclination correspondence principle,and is due to the filling anomaly that results in fractional charges to the boundary unit *** far,topological disclination states were observed only in the linear regime,while the interplay between nonlinearity and topology in the systems with disclinations has been never studied *** report here on the experimental observation of the nonlinear photonic disclination states in waveguide arrays with pentagonal or heptagonal disclination cores inscribed in transparent optical medium using the fs-laser writing *** transition between nontopological and topological phases in such structures is controlled by the Kekulédistortion coefficient r with topological phase hosting simultaneously disclination states at the inner disclination core and spatially separated from them corner-I,corner-II,and extended edge states at the outer edge of the *** show that the robust nonlinear disclination states bifurcate from their linear counterparts and that location of their propagation constants in the gap and,hence,their spatial localization can be controlled by their *** disclination states can be efficiently excited by Gaussian input beams,but only if they are focused into the waveguides belonging to the disclination core,where such topological states *** results open new prospects for investigation of nonlinear effects in topological systems with disclinations and are relevant for different areas of science,including Bose-Einstein and polariton condensates,where potentials with the disclinations can be created.

关键词： structure topological nonlinear

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Infrared Spectral Studies of Copper-Containing Film on the Steel Sample

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International Journal of Organic Chemistry 2015年第1期5卷 11-14页

作者： sergey D. Pichugin Vladimir n. Malyshev Department of Tribology and Repair Technology of Oil and Gas Equipment Gubkin Russian State University of Oil and Gas Moscow Russian

Infrared spectral studies of copper-containing film from steel sample (worn in pair with brass in glycerol) friction zone are performed in the study. The protective film formed by the interaction of the friction triad... 详细信息

关键词： Copper-Containing Film Functional Groups Infrared Range Friction

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Pyroptosis is a drug target for prevention of adverse cardiac remodeling: The crosstalk between pyroptosis, apoptosis, and autophagy

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The Journal of Biomedical Research 2022年第6期36卷 375-389页

作者： natalia V.naryzhnaya Leonid n.Maslov sergey V.Popov Alexandr V.Mukhomezyanov Vyacheslav V.Ryabov Boris K.Kurbatov Alexandra E.Gombozhapova nirmal Singh Feng Fu Jian-Ming Pei sergey V.Logvinov Laboratory of Experimental Cardiology Cardiology Research InstituteTomsk National Research Medical Center of the Russian Academy of SciencesTomskTomsk Region 634012Russia Department of Pharmaceutical Sciences and Drug Research Punjabi UniversityPatiala 147002India Department of Physiology and Pathophysiology National Key Discipline of Cell BiologySchool of Basic MedicineFourth Military Medical UniversityXi'anShaanxi 710032China Department of Histology Embryology and CytologySiberian State Medical UniversityTomskTomsk Region 634055Russia

Acute myocardial infarction(AMI)is one of the main reasons of cardiovascular disease-related *** introduction of percutaneous coronary intervention to clinical practice dramatically decreased the mortality rate in *** cardiac remodeling is a serious problem in *** increase in the effectiveness of AMI treatment and prevention of adverse cardiac remodeling is difficult to achieve without understanding the mechanisms of reperfusion cardiac injury and cardiac *** of pyroptosis prevents the development of postinfarction and pressure overload-induced cardiac remodeling,and mitigates cardiomyopathy induced by diabetes and metabolic ***,it is reasonable to hypothesize that the pyroptosis inhibitors may find a role in clinical practice for treatment of AMI and prevention of cardiac remodeling,diabetes and metabolic syndrome-triggered *** was demonstrated that pyroptosis interacts closely with apoptosis and *** could be inhibited by nucleotide-binding oligomerization domain-like receptor with a pyrin domain 3 inhibitors,caspase-1 inhibitors,microRnA,angiotensin-converting enzyme inhibitors,angiotensinⅡreceptor blockers,and traditional Chinese herbal medicines.

关键词： pyroptosis apoptosis autophagy cardiac remodeling diabetes metabolic syndrome

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Synthesis, X-ray structure and luminescent properties of Sm^(3+) ternary complex with novel heterocyclic β-diketone and 1,10-phenanthroline (Phen)

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Journal of Rare Earths 2011年第8期29卷 719-722页

作者： Ilya V. Taydakov Boris E. Zaitsev sergey S. Krasnoselskiy Zoya A. Starikova G. S. Petrov Institute of Plastics JSC Perovskiy proezd 35 Moscow 111024 Russian Federation People's Friendship University of Russia A. n. nesmeyanov Institute of Organoelement Compounds Russian Academy of Sciences

A new neutral ternary samarium complex Sm（Phen）HL3 in which Phen is 1,10-phenanthroline and HL is （1,3-bis（1,3-dimethyl-1H-pyrazol-4-yl）-1,3-propanedione） was synthesized. Molecular structure of this complex was determined by X-ray diffraction. Under UV-light this complex is demonstrated bright red luminescence （λmax=647 nm）, which was corresponding to the electric dipole 4G5/2→6H9/2 transition in Sm3＋ ion. UV-absorption, excitation and emission spectra of the title compound were investigated.

关键词： samarium pyrazole β-diketone crystal structure photoluminescence rare earths

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High efficient working units of compaction machines theory and calculation

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Journal of Harbin Institute of Technology(new Series) 2000年第S1期7卷 63-65页

作者： sergey n.Ivanchenko Vladimir V.Sidorkov Khabarovsk state university of technology 680035 RussiaKhabarovsk state university of technology680035 Russia

This paper introduce one of the possible way for efficient design of traditional and non-traditional types of compaction machines and it’s working devices on accordance to conditions of compaction process and propert... 详细信息

关键词： compaction interaction kinematic active wheel passive wheel cohesion sliding forward sliding backwardl normal strain tangential strain

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Input-to-state dynamical stability of interconnected systems

Input-to-state dynamical stability of interconnected systems

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Joint 48th IEEE Conference on Decision and Control and 28th Chinese Control Conference

作者： sergey n.Dashkovskiy Lars naujok the Zentrum für Technomathematik Universit?t Bremen

We consider networks of input-to-state dynamically stable（ISDS） systems and provide a small gain condition under which the entire network is again ISDS.A Lyapunov formulation of the nonlinear small gain theorem for two interconnected ISDS systems is *** provides a constructive method to find an ISDS Lyapunov function for such an interconnection.

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Phylogeny of Brucella abortus strains isolated in the Russian Federation

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Asian Pacific Journal of Tropical Medicine 2021年第7期14卷 323-329页

作者： Dmitry A.Kovalev Dmitriy G.Ponomarenko sergey V.Pisarenko nikolay A.Shapakov Anna A.Khachaturova natalia S.Serdyuk Olga V.Bobrysheva Alexander n.Kulichenko Stavropol Research Anti-Plague Institute 355035StavropolRussian Federation

Objective: To study Brucella(B.) abortus strains isolated in the Russian Federation, in order to identify their detailed position in the phylogenetic structure of the species global population as well as to determine genetic relationships for isolates from different geographical ***: Based on Bayesian method, the whole genome singlenucleotide polymorphism(SnP) analysis of 258 B. abortus strains from different geographical areas of the world including 20 B. abortus strains isolated in Russia was carried out. Results: The core genome SnP analysis of the B. abortus isolates allowed describing the main genetic lineages. The Russian strains entered two separate clades, including the basal branch and the C1 branch that is widely spread in Eurasia. The data on the isolation time was used for the dating of phylogenetic tree, and also the estimated time frame for the B. abortus genotype diversification was determined. There were sets of specific SnPs identified, which defined each of the genotypes and ***: A significant genetic diversity of the brucellosis pathogen strains from Russia has been proven. The sets of unique specific SnPs described in our study may become one of the elements within a bio-informational analysis algorithm to be used for epidemiological study of brucellosis outbreaks, including those caused by new(atypical) genetic variants of B. abortus.

关键词： Brucella abortus Phylogeny Evolution Genome SnP

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Ballistic performance of titanium-based layered composites made using blended elemental powder metallurgy and hot isostatic pressing

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Defence Technology（防务技术） 2024年第9期39卷 1-14页

作者： Pavlo Markovsky Jacek Janiszewski Dmytro Savvakin Oleksandr Stasyuk Bartosz Fikus Victor Samarov Vianey Ellison sergey V.Prikhodko G.V.Kurdyumov Institute for Metal Physics of n.A.S.of Ukraine 36Academician Vernadsky BoulevardUA-03142 KyivUkraine Jarosław Dabrowski Military University of Technology 2Gen.Sylwester Kaliski Str.00e908 Warsaw 46Poland Synertech Inc. 11711 Monarch Street Garden GroveLos AngelesCA 92841USA Department of Materials Science and Engineering University of California Los AngelesLos AngelesCA 90095USA

Metal matrix composites tiles based on Ti-6Al-4V(Ti64)alloy,reinforced with 10,20,and 40(vol%)of either TiC or TiB particles were made using press-and-sinter blended elemental powder metallurgy(BEPM)and then bonded together into 3-layer laminated plates using hot isostatic pressing(HIP).The laminates were ballistically tested and demonstrated superior *** microstructure and properties of the laminates were analyzed to determine the effect of the BEPM and HIP processing on the ballistic properties of the layered *** effect of porosity in sintered composites on further diffusion bonding of the plates during HIP is analyzed to understand the bonding features at the interfaces between different adjacent layers in the *** ballistic performance of fabricated structures was explained by a significant reduction in the residual porosity of the BEPM products by their additional processing using HIP,which provides an unprecedented increase in the hardness of the layered *** is argued that the combination of the used two technologies,BEPM and HIP is principally complimentary for the materials in question with the abilities to solve the essential problems of each used individually.

关键词： Metal matrix composites Powder metallurgy Titanium hydride powder Master alloy Titanium carbide Titanium boride Hot isostatic pressing Ballistic tests

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